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 <sys/prctl.h>
36 #include <dbus/dbus.h>
38 #include <systemd/sd-daemon.h>
44 #include "utmp-wtmp.h"
48 #include "dbus-common.h"
49 #include "cgroup-show.h"
50 #include "cgroup-util.h"
52 #include "path-lookup.h"
53 #include "conf-parser.h"
54 #include "shutdownd.h"
55 #include "exit-status.h"
56 #include "bus-errors.h"
58 #include "unit-name.h"
60 #include "spawn-agent.h"
62 #include "logs-show.h"
64 static const char *arg_type = NULL;
65 static char **arg_property = NULL;
66 static bool arg_all = false;
67 static const char *arg_job_mode = "replace";
68 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
69 static bool arg_immediate = false;
70 static bool arg_no_block = false;
71 static bool arg_no_legend = false;
72 static bool arg_no_pager = false;
73 static bool arg_no_wtmp = false;
74 static bool arg_no_sync = false;
75 static bool arg_no_wall = false;
76 static bool arg_no_reload = false;
77 static bool arg_dry = false;
78 static bool arg_quiet = false;
79 static bool arg_full = false;
80 static bool arg_force = false;
81 static bool arg_ask_password = false;
82 static bool arg_failed = false;
83 static bool arg_runtime = false;
84 static char **arg_wall = NULL;
85 static const char *arg_kill_who = NULL;
86 static const char *arg_kill_mode = NULL;
87 static int arg_signal = SIGTERM;
88 static const char *arg_root = NULL;
89 static usec_t arg_when = 0;
108 ACTION_CANCEL_SHUTDOWN,
110 } arg_action = ACTION_SYSTEMCTL;
116 static enum transport {
120 } arg_transport = TRANSPORT_NORMAL;
121 static const char *arg_host = NULL;
122 static bool arg_follow = false;
123 static unsigned arg_lines = 10;
124 static OutputMode arg_output = OUTPUT_SHORT;
126 static bool private_bus = false;
128 static int daemon_reload(DBusConnection *bus, char **args);
130 static bool on_tty(void) {
133 /* Note that this is invoked relatively early, before we start
134 * the pager. That means the value we return reflects whether
135 * we originally were started on a tty, not if we currently
136 * are. But this is intended, since we want colour and so on
137 * when run in our own pager. */
139 if (_unlikely_(t < 0))
140 t = isatty(STDOUT_FILENO) > 0;
145 static void pager_open_if_enabled(void) {
147 /* Cache result before we open the pager */
156 static void agent_open_if_enabled(void) {
158 /* Open the password agent as a child process if necessary */
160 if (!arg_ask_password)
163 if (arg_scope != UNIT_FILE_SYSTEM)
169 static const char *ansi_highlight_red(bool b) {
174 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
177 static const char *ansi_highlight_green(bool b) {
182 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
185 static bool error_is_no_service(const DBusError *error) {
188 if (!dbus_error_is_set(error))
191 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
194 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
197 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
200 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
203 if (!dbus_error_is_set(error))
206 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
207 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
208 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
209 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
210 return EXIT_NOPERMISSION;
212 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
213 return EXIT_NOTINSTALLED;
215 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
216 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
217 return EXIT_NOTIMPLEMENTED;
219 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
220 return EXIT_NOTCONFIGURED;
228 static void warn_wall(enum action action) {
229 static const char *table[_ACTION_MAX] = {
230 [ACTION_HALT] = "The system is going down for system halt NOW!",
231 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
232 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
233 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
234 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
235 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
244 if (!(p = strv_join(arg_wall, " "))) {
245 log_error("Failed to join strings.");
261 utmp_wall(table[action], NULL);
264 static bool avoid_bus(void) {
266 if (running_in_chroot() > 0)
269 if (sd_booted() <= 0)
272 if (!isempty(arg_root))
275 if (arg_scope == UNIT_FILE_GLOBAL)
283 const char *description;
284 const char *load_state;
285 const char *active_state;
286 const char *sub_state;
287 const char *following;
288 const char *unit_path;
290 const char *job_type;
291 const char *job_path;
294 static int compare_unit_info(const void *a, const void *b) {
296 const struct unit_info *u = a, *v = b;
298 d1 = strrchr(u->id, '.');
299 d2 = strrchr(v->id, '.');
304 if ((r = strcasecmp(d1, d2)) != 0)
308 return strcasecmp(u->id, v->id);
311 static bool output_show_unit(const struct unit_info *u) {
315 return streq(u->active_state, "failed");
317 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
318 streq(dot+1, arg_type))) &&
319 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
322 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
323 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
324 const struct unit_info *u;
326 max_id_len = sizeof("UNIT")-1;
327 active_len = sizeof("ACTIVE")-1;
328 sub_len = sizeof("SUB")-1;
329 job_len = sizeof("JOB")-1;
332 for (u = unit_infos; u < unit_infos + c; u++) {
333 if (!output_show_unit(u))
336 max_id_len = MAX(max_id_len, strlen(u->id));
337 active_len = MAX(active_len, strlen(u->active_state));
338 sub_len = MAX(sub_len, strlen(u->sub_state));
340 job_len = MAX(job_len, strlen(u->job_type));
345 id_len = MIN(max_id_len, 25);
346 basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
347 if (basic_len < (unsigned) columns()) {
348 unsigned extra_len, incr;
349 extra_len = columns() - basic_len;
350 /* Either UNIT already got 25, or is fully satisfied.
351 * Grant up to 25 to DESC now. */
352 incr = MIN(extra_len, 25);
355 /* split the remaining space between UNIT and DESC,
356 * but do not give UNIT more than it needs. */
358 incr = MIN(extra_len / 2, max_id_len - id_len);
360 desc_len += extra_len - incr;
366 if (!arg_no_legend) {
367 printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
368 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
369 if (!arg_full && arg_no_pager)
370 printf("%.*s\n", desc_len, "DESCRIPTION");
372 printf("%s\n", "DESCRIPTION");
375 for (u = unit_infos; u < unit_infos + c; u++) {
377 const char *on_loaded, *off_loaded;
378 const char *on_active, *off_active;
380 if (!output_show_unit(u))
385 if (streq(u->load_state, "error")) {
386 on_loaded = ansi_highlight_red(true);
387 off_loaded = ansi_highlight_red(false);
389 on_loaded = off_loaded = "";
391 if (streq(u->active_state, "failed")) {
392 on_active = ansi_highlight_red(true);
393 off_active = ansi_highlight_red(false);
395 on_active = off_active = "";
397 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
399 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
400 id_len, e ? e : u->id,
401 on_loaded, u->load_state, off_loaded,
402 on_active, active_len, u->active_state,
403 sub_len, u->sub_state, off_active,
404 job_len, u->job_id ? u->job_type : "");
405 if (!arg_full && arg_no_pager)
406 printf("%.*s\n", desc_len, u->description);
408 printf("%s\n", u->description);
413 if (!arg_no_legend) {
414 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
415 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
416 "SUB = The low-level unit activation state, values depend on unit type.\n"
417 "JOB = Pending job for the unit.\n");
420 printf("\n%u units listed.\n", n_shown);
422 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
426 static int list_units(DBusConnection *bus, char **args) {
427 DBusMessage *m = NULL, *reply = NULL;
430 DBusMessageIter iter, sub, sub2;
431 unsigned c = 0, n_units = 0;
432 struct unit_info *unit_infos = NULL;
434 dbus_error_init(&error);
438 pager_open_if_enabled();
440 if (!(m = dbus_message_new_method_call(
441 "org.freedesktop.systemd1",
442 "/org/freedesktop/systemd1",
443 "org.freedesktop.systemd1.Manager",
445 log_error("Could not allocate message.");
449 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
450 log_error("Failed to issue method call: %s", bus_error_message(&error));
455 if (!dbus_message_iter_init(reply, &iter) ||
456 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
457 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
458 log_error("Failed to parse reply.");
463 dbus_message_iter_recurse(&iter, &sub);
465 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
468 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
469 log_error("Failed to parse reply.");
477 n_units = MAX(2*c, 16);
478 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
481 log_error("Failed to allocate unit array.");
491 dbus_message_iter_recurse(&sub, &sub2);
493 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
494 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
495 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
496 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
497 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
498 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
499 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
500 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
501 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
502 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
503 log_error("Failed to parse reply.");
508 dbus_message_iter_next(&sub);
513 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
514 output_units_list(unit_infos, c);
521 dbus_message_unref(m);
524 dbus_message_unref(reply);
528 dbus_error_free(&error);
533 static int compare_unit_file_list(const void *a, const void *b) {
535 const UnitFileList *u = a, *v = b;
537 d1 = strrchr(u->path, '.');
538 d2 = strrchr(v->path, '.');
543 r = strcasecmp(d1, d2);
548 return strcasecmp(file_name_from_path(u->path), file_name_from_path(v->path));
551 static bool output_show_unit_file(const UnitFileList *u) {
554 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
557 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
558 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
559 const UnitFileList *u;
561 max_id_len = sizeof("UNIT FILE")-1;
562 state_cols = sizeof("STATE")-1;
563 for (u = units; u < units + c; u++) {
564 if (!output_show_unit_file(u))
567 max_id_len = MAX(max_id_len, strlen(file_name_from_path(u->path)));
568 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
573 id_cols = MIN(max_id_len, 25);
574 basic_cols = 1 + id_cols + state_cols;
575 if (basic_cols < (unsigned) columns())
576 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
578 id_cols = max_id_len;
581 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
583 for (u = units; u < units + c; u++) {
585 const char *on, *off;
588 if (!output_show_unit_file(u))
593 if (u->state == UNIT_FILE_MASKED ||
594 u->state == UNIT_FILE_MASKED_RUNTIME ||
595 u->state == UNIT_FILE_DISABLED) {
596 on = ansi_highlight_red(true);
597 off = ansi_highlight_red(false);
598 } else if (u->state == UNIT_FILE_ENABLED) {
599 on = ansi_highlight_green(true);
600 off = ansi_highlight_green(false);
604 id = file_name_from_path(u->path);
606 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
608 printf("%-*s %s%-*s%s\n",
610 on, state_cols, unit_file_state_to_string(u->state), off);
616 printf("\n%u unit files listed.\n", n_shown);
619 static int list_unit_files(DBusConnection *bus, char **args) {
620 DBusMessage *m = NULL, *reply = NULL;
623 DBusMessageIter iter, sub, sub2;
624 unsigned c = 0, n_units = 0;
625 UnitFileList *units = NULL;
627 dbus_error_init(&error);
629 pager_open_if_enabled();
636 h = hashmap_new(string_hash_func, string_compare_func);
638 log_error("Out of memory");
642 r = unit_file_get_list(arg_scope, arg_root, h);
644 unit_file_list_free(h);
645 log_error("Failed to get unit file list: %s", strerror(-r));
649 n_units = hashmap_size(h);
650 units = new(UnitFileList, n_units);
652 unit_file_list_free(h);
653 log_error("Out of memory");
657 HASHMAP_FOREACH(u, h, i) {
658 memcpy(units + c++, u, sizeof(UnitFileList));
666 m = dbus_message_new_method_call(
667 "org.freedesktop.systemd1",
668 "/org/freedesktop/systemd1",
669 "org.freedesktop.systemd1.Manager",
672 log_error("Could not allocate message.");
676 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
678 log_error("Failed to issue method call: %s", bus_error_message(&error));
683 if (!dbus_message_iter_init(reply, &iter) ||
684 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
685 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
686 log_error("Failed to parse reply.");
691 dbus_message_iter_recurse(&iter, &sub);
693 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
697 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
698 log_error("Failed to parse reply.");
706 n_units = MAX(2*c, 16);
707 w = realloc(units, sizeof(struct UnitFileList) * n_units);
710 log_error("Failed to allocate unit array.");
720 dbus_message_iter_recurse(&sub, &sub2);
722 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
723 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
724 log_error("Failed to parse reply.");
729 u->state = unit_file_state_from_string(state);
731 dbus_message_iter_next(&sub);
737 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
738 output_unit_file_list(units, c);
745 dbus_message_unref(m);
748 dbus_message_unref(reply);
752 dbus_error_free(&error);
757 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
758 static const char * const colors[] = {
759 "Requires", "[color=\"black\"]",
760 "RequiresOverridable", "[color=\"black\"]",
761 "Requisite", "[color=\"darkblue\"]",
762 "RequisiteOverridable", "[color=\"darkblue\"]",
763 "Wants", "[color=\"darkgrey\"]",
764 "Conflicts", "[color=\"red\"]",
765 "ConflictedBy", "[color=\"red\"]",
766 "After", "[color=\"green\"]"
769 const char *c = NULL;
776 for (i = 0; i < ELEMENTSOF(colors); i += 2)
777 if (streq(colors[i], prop)) {
785 if (arg_dot != DOT_ALL)
786 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
789 switch (dbus_message_iter_get_arg_type(iter)) {
791 case DBUS_TYPE_ARRAY:
793 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
796 dbus_message_iter_recurse(iter, &sub);
798 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
801 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
802 dbus_message_iter_get_basic(&sub, &s);
803 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
805 dbus_message_iter_next(&sub);
815 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
816 DBusMessage *m = NULL, *reply = NULL;
817 const char *interface = "org.freedesktop.systemd1.Unit";
820 DBusMessageIter iter, sub, sub2, sub3;
825 dbus_error_init(&error);
827 if (!(m = dbus_message_new_method_call(
828 "org.freedesktop.systemd1",
830 "org.freedesktop.DBus.Properties",
832 log_error("Could not allocate message.");
837 if (!dbus_message_append_args(m,
838 DBUS_TYPE_STRING, &interface,
839 DBUS_TYPE_INVALID)) {
840 log_error("Could not append arguments to message.");
845 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
846 log_error("Failed to issue method call: %s", bus_error_message(&error));
851 if (!dbus_message_iter_init(reply, &iter) ||
852 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
853 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
854 log_error("Failed to parse reply.");
859 dbus_message_iter_recurse(&iter, &sub);
861 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
864 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
865 log_error("Failed to parse reply.");
870 dbus_message_iter_recurse(&sub, &sub2);
872 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
873 log_error("Failed to parse reply.");
878 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
879 log_error("Failed to parse reply.");
884 dbus_message_iter_recurse(&sub2, &sub3);
886 if (dot_one_property(name, prop, &sub3)) {
887 log_error("Failed to parse reply.");
892 dbus_message_iter_next(&sub);
899 dbus_message_unref(m);
902 dbus_message_unref(reply);
904 dbus_error_free(&error);
909 static int dot(DBusConnection *bus, char **args) {
910 DBusMessage *m = NULL, *reply = NULL;
913 DBusMessageIter iter, sub, sub2;
915 dbus_error_init(&error);
919 if (!(m = dbus_message_new_method_call(
920 "org.freedesktop.systemd1",
921 "/org/freedesktop/systemd1",
922 "org.freedesktop.systemd1.Manager",
924 log_error("Could not allocate message.");
928 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
929 log_error("Failed to issue method call: %s", bus_error_message(&error));
934 if (!dbus_message_iter_init(reply, &iter) ||
935 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
936 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
937 log_error("Failed to parse reply.");
942 printf("digraph systemd {\n");
944 dbus_message_iter_recurse(&iter, &sub);
945 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
946 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
948 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
949 log_error("Failed to parse reply.");
954 dbus_message_iter_recurse(&sub, &sub2);
956 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
957 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
958 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
959 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
960 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
961 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
962 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
963 log_error("Failed to parse reply.");
968 if ((r = dot_one(bus, id, unit_path)) < 0)
971 /* printf("\t\"%s\";\n", id); */
972 dbus_message_iter_next(&sub);
977 log_info(" Color legend: black = Requires\n"
978 " dark blue = Requisite\n"
979 " dark grey = Wants\n"
984 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
985 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
991 dbus_message_unref(m);
994 dbus_message_unref(reply);
996 dbus_error_free(&error);
1001 static int list_jobs(DBusConnection *bus, char **args) {
1002 DBusMessage *m = NULL, *reply = NULL;
1005 DBusMessageIter iter, sub, sub2;
1008 dbus_error_init(&error);
1012 pager_open_if_enabled();
1014 if (!(m = dbus_message_new_method_call(
1015 "org.freedesktop.systemd1",
1016 "/org/freedesktop/systemd1",
1017 "org.freedesktop.systemd1.Manager",
1019 log_error("Could not allocate message.");
1023 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1024 log_error("Failed to issue method call: %s", bus_error_message(&error));
1029 if (!dbus_message_iter_init(reply, &iter) ||
1030 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1031 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1032 log_error("Failed to parse reply.");
1037 dbus_message_iter_recurse(&iter, &sub);
1040 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1042 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1043 const char *name, *type, *state, *job_path, *unit_path;
1047 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1048 log_error("Failed to parse reply.");
1053 dbus_message_iter_recurse(&sub, &sub2);
1055 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1056 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1057 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1058 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1059 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1060 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1061 log_error("Failed to parse reply.");
1066 e = arg_full ? NULL : ellipsize(name, 25, 33);
1067 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1072 dbus_message_iter_next(&sub);
1076 printf("\n%u jobs listed.\n", k);
1082 dbus_message_unref(m);
1085 dbus_message_unref(reply);
1087 dbus_error_free(&error);
1092 static int load_unit(DBusConnection *bus, char **args) {
1093 DBusMessage *m = NULL;
1098 dbus_error_init(&error);
1103 STRV_FOREACH(name, args+1) {
1106 if (!(m = dbus_message_new_method_call(
1107 "org.freedesktop.systemd1",
1108 "/org/freedesktop/systemd1",
1109 "org.freedesktop.systemd1.Manager",
1111 log_error("Could not allocate message.");
1116 if (!dbus_message_append_args(m,
1117 DBUS_TYPE_STRING, name,
1118 DBUS_TYPE_INVALID)) {
1119 log_error("Could not append arguments to message.");
1124 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1125 log_error("Failed to issue method call: %s", bus_error_message(&error));
1130 dbus_message_unref(m);
1131 dbus_message_unref(reply);
1140 dbus_message_unref(m);
1142 dbus_error_free(&error);
1147 static int cancel_job(DBusConnection *bus, char **args) {
1148 DBusMessage *m = NULL, *reply = NULL;
1153 dbus_error_init(&error);
1158 if (strv_length(args) <= 1)
1159 return daemon_reload(bus, args);
1161 STRV_FOREACH(name, args+1) {
1165 if (!(m = dbus_message_new_method_call(
1166 "org.freedesktop.systemd1",
1167 "/org/freedesktop/systemd1",
1168 "org.freedesktop.systemd1.Manager",
1170 log_error("Could not allocate message.");
1175 if ((r = safe_atou(*name, &id)) < 0) {
1176 log_error("Failed to parse job id: %s", strerror(-r));
1180 assert_cc(sizeof(uint32_t) == sizeof(id));
1181 if (!dbus_message_append_args(m,
1182 DBUS_TYPE_UINT32, &id,
1183 DBUS_TYPE_INVALID)) {
1184 log_error("Could not append arguments to message.");
1189 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1190 log_error("Failed to issue method call: %s", bus_error_message(&error));
1195 if (!dbus_message_get_args(reply, &error,
1196 DBUS_TYPE_OBJECT_PATH, &path,
1197 DBUS_TYPE_INVALID)) {
1198 log_error("Failed to parse reply: %s", bus_error_message(&error));
1203 dbus_message_unref(m);
1204 if (!(m = dbus_message_new_method_call(
1205 "org.freedesktop.systemd1",
1207 "org.freedesktop.systemd1.Job",
1209 log_error("Could not allocate message.");
1214 dbus_message_unref(reply);
1215 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1216 log_error("Failed to issue method call: %s", bus_error_message(&error));
1221 dbus_message_unref(m);
1222 dbus_message_unref(reply);
1230 dbus_message_unref(m);
1233 dbus_message_unref(reply);
1235 dbus_error_free(&error);
1240 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1241 DBusMessage *m = NULL, *reply = NULL;
1242 dbus_bool_t b = FALSE;
1243 DBusMessageIter iter, sub;
1245 *interface = "org.freedesktop.systemd1.Unit",
1246 *property = "NeedDaemonReload",
1249 /* We ignore all errors here, since this is used to show a warning only */
1251 if (!(m = dbus_message_new_method_call(
1252 "org.freedesktop.systemd1",
1253 "/org/freedesktop/systemd1",
1254 "org.freedesktop.systemd1.Manager",
1258 if (!dbus_message_append_args(m,
1259 DBUS_TYPE_STRING, &unit,
1263 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1266 if (!dbus_message_get_args(reply, NULL,
1267 DBUS_TYPE_OBJECT_PATH, &path,
1271 dbus_message_unref(m);
1272 if (!(m = dbus_message_new_method_call(
1273 "org.freedesktop.systemd1",
1275 "org.freedesktop.DBus.Properties",
1279 if (!dbus_message_append_args(m,
1280 DBUS_TYPE_STRING, &interface,
1281 DBUS_TYPE_STRING, &property,
1282 DBUS_TYPE_INVALID)) {
1286 dbus_message_unref(reply);
1287 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1290 if (!dbus_message_iter_init(reply, &iter) ||
1291 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1294 dbus_message_iter_recurse(&iter, &sub);
1296 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1299 dbus_message_iter_get_basic(&sub, &b);
1303 dbus_message_unref(m);
1306 dbus_message_unref(reply);
1311 typedef struct WaitData {
1316 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1324 dbus_error_init(&error);
1326 log_debug("Got D-Bus request: %s.%s() on %s",
1327 dbus_message_get_interface(message),
1328 dbus_message_get_member(message),
1329 dbus_message_get_path(message));
1331 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1332 log_error("Warning! D-Bus connection terminated.");
1333 dbus_connection_close(connection);
1335 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1337 const char *path, *result;
1338 dbus_bool_t success = true;
1340 if (dbus_message_get_args(message, &error,
1341 DBUS_TYPE_UINT32, &id,
1342 DBUS_TYPE_OBJECT_PATH, &path,
1343 DBUS_TYPE_STRING, &result,
1344 DBUS_TYPE_INVALID)) {
1347 if ((p = set_remove(d->set, (char*) path)))
1351 d->result = strdup(result);
1356 dbus_error_free(&error);
1358 if (dbus_message_get_args(message, &error,
1359 DBUS_TYPE_UINT32, &id,
1360 DBUS_TYPE_OBJECT_PATH, &path,
1361 DBUS_TYPE_BOOLEAN, &success,
1362 DBUS_TYPE_INVALID)) {
1365 /* Compatibility with older systemd versions <
1366 * 19 during upgrades. This should be dropped
1369 if ((p = set_remove(d->set, (char*) path)))
1373 d->result = strdup("failed");
1379 log_error("Failed to parse message: %s", bus_error_message(&error));
1383 dbus_error_free(&error);
1384 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1387 static int enable_wait_for_jobs(DBusConnection *bus) {
1395 dbus_error_init(&error);
1396 dbus_bus_add_match(bus,
1398 "sender='org.freedesktop.systemd1',"
1399 "interface='org.freedesktop.systemd1.Manager',"
1400 "member='JobRemoved',"
1401 "path='/org/freedesktop/systemd1'",
1404 if (dbus_error_is_set(&error)) {
1405 log_error("Failed to add match: %s", bus_error_message(&error));
1406 dbus_error_free(&error);
1410 /* This is slightly dirty, since we don't undo the match registrations. */
1414 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1424 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1425 log_error("Failed to add filter.");
1430 while (!set_isempty(s) &&
1431 dbus_connection_read_write_dispatch(bus, -1))
1434 if (!arg_quiet && d.result) {
1435 if (streq(d.result, "timeout"))
1436 log_error("Job timed out.");
1437 else if (streq(d.result, "canceled"))
1438 log_error("Job canceled.");
1439 else if (streq(d.result, "dependency"))
1440 log_error("A dependency job failed. See system journal for details.");
1441 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1442 log_error("Job failed. See system journal and 'systemctl status' for details.");
1445 if (streq_ptr(d.result, "timeout"))
1447 else if (streq_ptr(d.result, "canceled"))
1449 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1457 /* This is slightly dirty, since we don't undo the filter registration. */
1462 static int start_unit_one(
1463 DBusConnection *bus,
1470 DBusMessage *m = NULL, *reply = NULL;
1479 assert(arg_no_block || s);
1481 if (!(m = dbus_message_new_method_call(
1482 "org.freedesktop.systemd1",
1483 "/org/freedesktop/systemd1",
1484 "org.freedesktop.systemd1.Manager",
1486 log_error("Could not allocate message.");
1491 if (!dbus_message_append_args(m,
1492 DBUS_TYPE_STRING, &name,
1493 DBUS_TYPE_STRING, &mode,
1494 DBUS_TYPE_INVALID)) {
1495 log_error("Could not append arguments to message.");
1500 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
1502 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1503 /* There's always a fallback possible for
1504 * legacy actions. */
1509 log_error("Failed to issue method call: %s", bus_error_message(error));
1514 if (!dbus_message_get_args(reply, error,
1515 DBUS_TYPE_OBJECT_PATH, &path,
1516 DBUS_TYPE_INVALID)) {
1517 log_error("Failed to parse reply: %s", bus_error_message(error));
1522 if (need_daemon_reload(bus, name))
1523 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1524 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1526 if (!arg_no_block) {
1529 if (!(p = strdup(path))) {
1530 log_error("Failed to duplicate path.");
1535 if ((r = set_put(s, p)) < 0) {
1537 log_error("Failed to add path to set.");
1546 dbus_message_unref(m);
1549 dbus_message_unref(reply);
1554 static enum action verb_to_action(const char *verb) {
1555 if (streq(verb, "halt"))
1557 else if (streq(verb, "poweroff"))
1558 return ACTION_POWEROFF;
1559 else if (streq(verb, "reboot"))
1560 return ACTION_REBOOT;
1561 else if (streq(verb, "kexec"))
1562 return ACTION_KEXEC;
1563 else if (streq(verb, "rescue"))
1564 return ACTION_RESCUE;
1565 else if (streq(verb, "emergency"))
1566 return ACTION_EMERGENCY;
1567 else if (streq(verb, "default"))
1568 return ACTION_DEFAULT;
1569 else if (streq(verb, "exit"))
1572 return ACTION_INVALID;
1575 static int start_unit(DBusConnection *bus, char **args) {
1577 static const char * const table[_ACTION_MAX] = {
1578 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1579 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1580 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1581 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1582 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1583 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1584 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1585 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1586 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1587 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1588 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1589 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
1593 const char *method, *mode, *one_name;
1598 dbus_error_init(&error);
1602 agent_open_if_enabled();
1604 if (arg_action == ACTION_SYSTEMCTL) {
1606 streq(args[0], "stop") ||
1607 streq(args[0], "condstop") ? "StopUnit" :
1608 streq(args[0], "reload") ? "ReloadUnit" :
1609 streq(args[0], "restart") ? "RestartUnit" :
1611 streq(args[0], "try-restart") ||
1612 streq(args[0], "condrestart") ? "TryRestartUnit" :
1614 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1616 streq(args[0], "reload-or-try-restart") ||
1617 streq(args[0], "condreload") ||
1619 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1623 (streq(args[0], "isolate") ||
1624 streq(args[0], "rescue") ||
1625 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1627 one_name = table[verb_to_action(args[0])];
1630 assert(arg_action < ELEMENTSOF(table));
1631 assert(table[arg_action]);
1633 method = "StartUnit";
1635 mode = (arg_action == ACTION_EMERGENCY ||
1636 arg_action == ACTION_RESCUE ||
1637 arg_action == ACTION_RUNLEVEL2 ||
1638 arg_action == ACTION_RUNLEVEL3 ||
1639 arg_action == ACTION_RUNLEVEL4 ||
1640 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1642 one_name = table[arg_action];
1645 if (!arg_no_block) {
1646 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1647 log_error("Could not watch jobs: %s", strerror(-ret));
1651 if (!(s = set_new(string_hash_func, string_compare_func))) {
1652 log_error("Failed to allocate set.");
1659 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1662 STRV_FOREACH(name, args+1)
1663 if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1664 ret = translate_bus_error_to_exit_status(r, &error);
1665 dbus_error_free(&error);
1670 if ((r = wait_for_jobs(bus, s)) < 0) {
1679 dbus_error_free(&error);
1684 static int start_special(DBusConnection *bus, char **args) {
1691 (streq(args[0], "halt") ||
1692 streq(args[0], "poweroff") ||
1693 streq(args[0], "reboot") ||
1694 streq(args[0], "kexec") ||
1695 streq(args[0], "exit")))
1696 return daemon_reload(bus, args);
1698 r = start_unit(bus, args);
1701 warn_wall(verb_to_action(args[0]));
1706 static int check_unit(DBusConnection *bus, char **args) {
1707 DBusMessage *m = NULL, *reply = NULL;
1709 *interface = "org.freedesktop.systemd1.Unit",
1710 *property = "ActiveState";
1711 int r = 3; /* According to LSB: "program is not running" */
1718 dbus_error_init(&error);
1720 STRV_FOREACH(name, args+1) {
1721 const char *path = NULL;
1723 DBusMessageIter iter, sub;
1725 if (!(m = dbus_message_new_method_call(
1726 "org.freedesktop.systemd1",
1727 "/org/freedesktop/systemd1",
1728 "org.freedesktop.systemd1.Manager",
1730 log_error("Could not allocate message.");
1735 if (!dbus_message_append_args(m,
1736 DBUS_TYPE_STRING, name,
1737 DBUS_TYPE_INVALID)) {
1738 log_error("Could not append arguments to message.");
1743 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1745 /* Hmm, cannot figure out anything about this unit... */
1749 dbus_error_free(&error);
1750 dbus_message_unref(m);
1755 if (!dbus_message_get_args(reply, &error,
1756 DBUS_TYPE_OBJECT_PATH, &path,
1757 DBUS_TYPE_INVALID)) {
1758 log_error("Failed to parse reply: %s", bus_error_message(&error));
1763 dbus_message_unref(m);
1764 if (!(m = dbus_message_new_method_call(
1765 "org.freedesktop.systemd1",
1767 "org.freedesktop.DBus.Properties",
1769 log_error("Could not allocate message.");
1774 if (!dbus_message_append_args(m,
1775 DBUS_TYPE_STRING, &interface,
1776 DBUS_TYPE_STRING, &property,
1777 DBUS_TYPE_INVALID)) {
1778 log_error("Could not append arguments to message.");
1783 dbus_message_unref(reply);
1784 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1785 log_error("Failed to issue method call: %s", bus_error_message(&error));
1790 if (!dbus_message_iter_init(reply, &iter) ||
1791 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1792 log_error("Failed to parse reply.");
1797 dbus_message_iter_recurse(&iter, &sub);
1799 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1800 log_error("Failed to parse reply.");
1805 dbus_message_iter_get_basic(&sub, &state);
1810 if (streq(state, "active") || streq(state, "reloading"))
1813 dbus_message_unref(m);
1814 dbus_message_unref(reply);
1820 dbus_message_unref(m);
1823 dbus_message_unref(reply);
1825 dbus_error_free(&error);
1830 static int kill_unit(DBusConnection *bus, char **args) {
1831 DBusMessage *m = NULL;
1839 dbus_error_init(&error);
1842 arg_kill_who = "all";
1845 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
1847 STRV_FOREACH(name, args+1) {
1850 if (!(m = dbus_message_new_method_call(
1851 "org.freedesktop.systemd1",
1852 "/org/freedesktop/systemd1",
1853 "org.freedesktop.systemd1.Manager",
1855 log_error("Could not allocate message.");
1860 if (!dbus_message_append_args(m,
1861 DBUS_TYPE_STRING, name,
1862 DBUS_TYPE_STRING, &arg_kill_who,
1863 DBUS_TYPE_STRING, &arg_kill_mode,
1864 DBUS_TYPE_INT32, &arg_signal,
1865 DBUS_TYPE_INVALID)) {
1866 log_error("Could not append arguments to message.");
1871 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1872 log_error("Failed to issue method call: %s", bus_error_message(&error));
1873 dbus_error_free(&error);
1877 dbus_message_unref(m);
1880 dbus_message_unref(reply);
1886 dbus_message_unref(m);
1888 dbus_error_free(&error);
1893 typedef struct ExecStatusInfo {
1901 usec_t start_timestamp;
1902 usec_t exit_timestamp;
1907 LIST_FIELDS(struct ExecStatusInfo, exec);
1910 static void exec_status_info_free(ExecStatusInfo *i) {
1919 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1920 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
1921 DBusMessageIter sub2, sub3;
1925 int32_t code, status;
1931 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1934 dbus_message_iter_recurse(sub, &sub2);
1936 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1939 if (!(i->path = strdup(path)))
1942 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1943 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1947 dbus_message_iter_recurse(&sub2, &sub3);
1948 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1949 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1950 dbus_message_iter_next(&sub3);
1955 if (!(i->argv = new0(char*, n+1)))
1959 dbus_message_iter_recurse(&sub2, &sub3);
1960 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1963 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1964 dbus_message_iter_get_basic(&sub3, &s);
1965 dbus_message_iter_next(&sub3);
1967 if (!(i->argv[n++] = strdup(s)))
1971 if (!dbus_message_iter_next(&sub2) ||
1972 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
1973 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1974 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
1975 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1976 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
1977 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1978 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1979 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1983 i->start_timestamp = (usec_t) start_timestamp;
1984 i->exit_timestamp = (usec_t) exit_timestamp;
1985 i->pid = (pid_t) pid;
1992 typedef struct UnitStatusInfo {
1994 const char *load_state;
1995 const char *active_state;
1996 const char *sub_state;
1997 const char *unit_file_state;
1999 const char *description;
2000 const char *following;
2003 const char *default_control_group;
2005 const char *load_error;
2008 usec_t inactive_exit_timestamp;
2009 usec_t inactive_exit_timestamp_monotonic;
2010 usec_t active_enter_timestamp;
2011 usec_t active_exit_timestamp;
2012 usec_t inactive_enter_timestamp;
2014 bool need_daemon_reload;
2019 const char *status_text;
2021 #ifdef HAVE_SYSV_COMPAT
2025 usec_t start_timestamp;
2026 usec_t exit_timestamp;
2028 int exit_code, exit_status;
2030 usec_t condition_timestamp;
2031 bool condition_result;
2034 unsigned n_accepted;
2035 unsigned n_connections;
2039 const char *sysfs_path;
2041 /* Mount, Automount */
2047 LIST_HEAD(ExecStatusInfo, exec);
2050 static void print_status_info(UnitStatusInfo *i) {
2052 const char *on, *off, *ss;
2054 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2055 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2059 /* This shows pretty information about a unit. See
2060 * print_property() for a low-level property printer */
2062 printf("%s", strna(i->id));
2064 if (i->description && !streq_ptr(i->id, i->description))
2065 printf(" - %s", i->description);
2070 printf("\t Follow: unit currently follows state of %s\n", i->following);
2072 if (streq_ptr(i->load_state, "error")) {
2073 on = ansi_highlight_red(true);
2074 off = ansi_highlight_red(false);
2079 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2080 else if (i->path && i->unit_file_state)
2081 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, i->path, i->unit_file_state);
2083 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
2085 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2087 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2089 if (streq_ptr(i->active_state, "failed")) {
2090 on = ansi_highlight_red(true);
2091 off = ansi_highlight_red(false);
2092 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2093 on = ansi_highlight_green(true);
2094 off = ansi_highlight_green(false);
2099 printf("\t Active: %s%s (%s)%s",
2101 strna(i->active_state),
2105 printf("\t Active: %s%s%s",
2107 strna(i->active_state),
2110 if (!isempty(i->result) && !streq(i->result, "success"))
2111 printf(" (Result: %s)", i->result);
2113 timestamp = (streq_ptr(i->active_state, "active") ||
2114 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2115 (streq_ptr(i->active_state, "inactive") ||
2116 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2117 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2118 i->active_exit_timestamp;
2120 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2121 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2124 printf(" since %s; %s\n", s2, s1);
2126 printf(" since %s\n", s2);
2130 if (!i->condition_result && i->condition_timestamp > 0) {
2131 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2132 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2135 printf("\t start condition failed at %s; %s\n", s2, s1);
2137 printf("\t start condition failed at %s\n", s2);
2141 printf("\t Device: %s\n", i->sysfs_path);
2143 printf("\t Where: %s\n", i->where);
2145 printf("\t What: %s\n", i->what);
2148 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2150 LIST_FOREACH(exec, p, i->exec) {
2154 /* Only show exited processes here */
2158 t = strv_join(p->argv, " ");
2159 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2162 #ifdef HAVE_SYSV_COMPAT
2164 good = is_clean_exit_lsb(p->code, p->status);
2167 good = is_clean_exit(p->code, p->status);
2170 on = ansi_highlight_red(true);
2171 off = ansi_highlight_red(false);
2175 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2177 if (p->code == CLD_EXITED) {
2180 printf("status=%i", p->status);
2182 #ifdef HAVE_SYSV_COMPAT
2183 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
2185 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
2190 printf("signal=%s", signal_to_string(p->status));
2192 printf(")%s\n", off);
2194 if (i->main_pid == p->pid &&
2195 i->start_timestamp == p->start_timestamp &&
2196 i->exit_timestamp == p->start_timestamp)
2197 /* Let's not show this twice */
2200 if (p->pid == i->control_pid)
2204 if (i->main_pid > 0 || i->control_pid > 0) {
2207 if (i->main_pid > 0) {
2208 printf("Main PID: %u", (unsigned) i->main_pid);
2212 get_process_comm(i->main_pid, &t);
2217 } else if (i->exit_code > 0) {
2218 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2220 if (i->exit_code == CLD_EXITED) {
2223 printf("status=%i", i->exit_status);
2225 #ifdef HAVE_SYSV_COMPAT
2226 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
2228 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
2233 printf("signal=%s", signal_to_string(i->exit_status));
2238 if (i->main_pid > 0 && i->control_pid > 0)
2241 if (i->control_pid > 0) {
2244 printf(" Control: %u", (unsigned) i->control_pid);
2246 get_process_comm(i->control_pid, &t);
2257 printf("\t Status: \"%s\"\n", i->status_text);
2259 if (i->default_control_group) {
2262 printf("\t CGroup: %s\n", i->default_control_group);
2264 if (arg_transport != TRANSPORT_SSH) {
2265 if ((c = columns()) > 18)
2270 show_cgroup_by_path(i->default_control_group, "\t\t ", c, false);
2274 if (i->id && arg_transport != TRANSPORT_SSH) {
2276 show_journal_by_unit(i->id, arg_output, NULL, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow);
2279 if (i->need_daemon_reload)
2280 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2281 ansi_highlight_red(true),
2282 ansi_highlight_red(false),
2283 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2286 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2292 switch (dbus_message_iter_get_arg_type(iter)) {
2294 case DBUS_TYPE_STRING: {
2297 dbus_message_iter_get_basic(iter, &s);
2300 if (streq(name, "Id"))
2302 else if (streq(name, "LoadState"))
2304 else if (streq(name, "ActiveState"))
2305 i->active_state = s;
2306 else if (streq(name, "SubState"))
2308 else if (streq(name, "Description"))
2310 else if (streq(name, "FragmentPath"))
2312 #ifdef HAVE_SYSV_COMPAT
2313 else if (streq(name, "SysVPath")) {
2318 else if (streq(name, "DefaultControlGroup"))
2319 i->default_control_group = s;
2320 else if (streq(name, "StatusText"))
2322 else if (streq(name, "SysFSPath"))
2324 else if (streq(name, "Where"))
2326 else if (streq(name, "What"))
2328 else if (streq(name, "Following"))
2330 else if (streq(name, "UnitFileState"))
2331 i->unit_file_state = s;
2332 else if (streq(name, "Result"))
2339 case DBUS_TYPE_BOOLEAN: {
2342 dbus_message_iter_get_basic(iter, &b);
2344 if (streq(name, "Accept"))
2346 else if (streq(name, "NeedDaemonReload"))
2347 i->need_daemon_reload = b;
2348 else if (streq(name, "ConditionResult"))
2349 i->condition_result = b;
2354 case DBUS_TYPE_UINT32: {
2357 dbus_message_iter_get_basic(iter, &u);
2359 if (streq(name, "MainPID")) {
2361 i->main_pid = (pid_t) u;
2364 } else if (streq(name, "ControlPID"))
2365 i->control_pid = (pid_t) u;
2366 else if (streq(name, "ExecMainPID")) {
2368 i->main_pid = (pid_t) u;
2369 } else if (streq(name, "NAccepted"))
2371 else if (streq(name, "NConnections"))
2372 i->n_connections = u;
2377 case DBUS_TYPE_INT32: {
2380 dbus_message_iter_get_basic(iter, &j);
2382 if (streq(name, "ExecMainCode"))
2383 i->exit_code = (int) j;
2384 else if (streq(name, "ExecMainStatus"))
2385 i->exit_status = (int) j;
2390 case DBUS_TYPE_UINT64: {
2393 dbus_message_iter_get_basic(iter, &u);
2395 if (streq(name, "ExecMainStartTimestamp"))
2396 i->start_timestamp = (usec_t) u;
2397 else if (streq(name, "ExecMainExitTimestamp"))
2398 i->exit_timestamp = (usec_t) u;
2399 else if (streq(name, "ActiveEnterTimestamp"))
2400 i->active_enter_timestamp = (usec_t) u;
2401 else if (streq(name, "InactiveEnterTimestamp"))
2402 i->inactive_enter_timestamp = (usec_t) u;
2403 else if (streq(name, "InactiveExitTimestamp"))
2404 i->inactive_exit_timestamp = (usec_t) u;
2405 else if (streq(name, "InactiveExitTimestampMonotonic"))
2406 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2407 else if (streq(name, "ActiveExitTimestamp"))
2408 i->active_exit_timestamp = (usec_t) u;
2409 else if (streq(name, "ConditionTimestamp"))
2410 i->condition_timestamp = (usec_t) u;
2415 case DBUS_TYPE_ARRAY: {
2417 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2418 startswith(name, "Exec")) {
2419 DBusMessageIter sub;
2421 dbus_message_iter_recurse(iter, &sub);
2422 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2423 ExecStatusInfo *info;
2426 if (!(info = new0(ExecStatusInfo, 1)))
2429 if (!(info->name = strdup(name))) {
2434 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2439 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2441 dbus_message_iter_next(&sub);
2448 case DBUS_TYPE_STRUCT: {
2450 if (streq(name, "LoadError")) {
2451 DBusMessageIter sub;
2452 const char *n, *message;
2455 dbus_message_iter_recurse(iter, &sub);
2457 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2461 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2465 if (!isempty(message))
2466 i->load_error = message;
2476 static int print_property(const char *name, DBusMessageIter *iter) {
2480 /* This is a low-level property printer, see
2481 * print_status_info() for the nicer output */
2483 if (arg_property && !strv_find(arg_property, name))
2486 switch (dbus_message_iter_get_arg_type(iter)) {
2488 case DBUS_TYPE_STRUCT: {
2489 DBusMessageIter sub;
2490 dbus_message_iter_recurse(iter, &sub);
2492 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2495 dbus_message_iter_get_basic(&sub, &u);
2498 printf("%s=%u\n", name, (unsigned) u);
2500 printf("%s=\n", name);
2503 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2506 dbus_message_iter_get_basic(&sub, &s);
2508 if (arg_all || s[0])
2509 printf("%s=%s\n", name, s);
2512 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2513 const char *a = NULL, *b = NULL;
2515 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2516 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2518 if (arg_all || !isempty(a) || !isempty(b))
2519 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2527 case DBUS_TYPE_ARRAY:
2529 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2530 DBusMessageIter sub, sub2;
2532 dbus_message_iter_recurse(iter, &sub);
2533 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2537 dbus_message_iter_recurse(&sub, &sub2);
2539 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2540 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2541 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2543 dbus_message_iter_next(&sub);
2548 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2549 DBusMessageIter sub, sub2;
2551 dbus_message_iter_recurse(iter, &sub);
2552 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2553 const char *type, *path;
2555 dbus_message_iter_recurse(&sub, &sub2);
2557 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2558 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2559 printf("%s=%s\n", type, path);
2561 dbus_message_iter_next(&sub);
2566 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2567 DBusMessageIter sub, sub2;
2569 dbus_message_iter_recurse(iter, &sub);
2570 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2572 uint64_t value, next_elapse;
2574 dbus_message_iter_recurse(&sub, &sub2);
2576 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2577 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2578 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2579 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2581 printf("%s={ value=%s ; next_elapse=%s }\n",
2583 format_timespan(timespan1, sizeof(timespan1), value),
2584 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2587 dbus_message_iter_next(&sub);
2592 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2593 DBusMessageIter sub, sub2;
2595 dbus_message_iter_recurse(iter, &sub);
2596 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2597 const char *controller, *attr, *value;
2599 dbus_message_iter_recurse(&sub, &sub2);
2601 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
2602 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
2603 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
2605 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
2611 dbus_message_iter_next(&sub);
2616 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2617 DBusMessageIter sub;
2619 dbus_message_iter_recurse(iter, &sub);
2620 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2621 ExecStatusInfo info;
2624 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2625 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2628 t = strv_join(info.argv, " ");
2630 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2634 yes_no(info.ignore),
2635 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2636 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2637 (unsigned) info. pid,
2638 sigchld_code_to_string(info.code),
2640 info.code == CLD_EXITED ? "" : "/",
2641 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2647 strv_free(info.argv);
2649 dbus_message_iter_next(&sub);
2658 if (generic_print_property(name, iter, arg_all) > 0)
2662 printf("%s=[unprintable]\n", name);
2667 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2668 DBusMessage *m = NULL, *reply = NULL;
2669 const char *interface = "";
2672 DBusMessageIter iter, sub, sub2, sub3;
2673 UnitStatusInfo info;
2681 dbus_error_init(&error);
2683 if (!(m = dbus_message_new_method_call(
2684 "org.freedesktop.systemd1",
2686 "org.freedesktop.DBus.Properties",
2688 log_error("Could not allocate message.");
2693 if (!dbus_message_append_args(m,
2694 DBUS_TYPE_STRING, &interface,
2695 DBUS_TYPE_INVALID)) {
2696 log_error("Could not append arguments to message.");
2701 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2702 log_error("Failed to issue method call: %s", bus_error_message(&error));
2707 if (!dbus_message_iter_init(reply, &iter) ||
2708 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2709 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2710 log_error("Failed to parse reply.");
2715 dbus_message_iter_recurse(&iter, &sub);
2722 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2725 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2726 log_error("Failed to parse reply.");
2731 dbus_message_iter_recurse(&sub, &sub2);
2733 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2734 log_error("Failed to parse reply.");
2739 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2740 log_error("Failed to parse reply.");
2745 dbus_message_iter_recurse(&sub2, &sub3);
2747 if (show_properties)
2748 r = print_property(name, &sub3);
2750 r = status_property(name, &sub3, &info);
2753 log_error("Failed to parse reply.");
2758 dbus_message_iter_next(&sub);
2763 if (!show_properties)
2764 print_status_info(&info);
2766 if (!streq_ptr(info.active_state, "active") &&
2767 !streq_ptr(info.active_state, "reloading") &&
2768 streq(verb, "status"))
2769 /* According to LSB: "program not running" */
2772 while ((p = info.exec)) {
2773 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2774 exec_status_info_free(p);
2779 dbus_message_unref(m);
2782 dbus_message_unref(reply);
2784 dbus_error_free(&error);
2789 static int show(DBusConnection *bus, char **args) {
2790 DBusMessage *m = NULL, *reply = NULL;
2793 bool show_properties, new_line = false;
2799 dbus_error_init(&error);
2801 show_properties = !streq(args[0], "status");
2803 if (show_properties)
2804 pager_open_if_enabled();
2806 if (show_properties && strv_length(args) <= 1) {
2807 /* If not argument is specified inspect the manager
2810 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2814 STRV_FOREACH(name, args+1) {
2815 const char *path = NULL;
2818 if (safe_atou32(*name, &id) < 0) {
2820 /* Interpret as unit name */
2822 if (!(m = dbus_message_new_method_call(
2823 "org.freedesktop.systemd1",
2824 "/org/freedesktop/systemd1",
2825 "org.freedesktop.systemd1.Manager",
2827 log_error("Could not allocate message.");
2832 if (!dbus_message_append_args(m,
2833 DBUS_TYPE_STRING, name,
2834 DBUS_TYPE_INVALID)) {
2835 log_error("Could not append arguments to message.");
2840 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2842 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2843 log_error("Failed to issue method call: %s", bus_error_message(&error));
2848 dbus_error_free(&error);
2850 dbus_message_unref(m);
2851 if (!(m = dbus_message_new_method_call(
2852 "org.freedesktop.systemd1",
2853 "/org/freedesktop/systemd1",
2854 "org.freedesktop.systemd1.Manager",
2856 log_error("Could not allocate message.");
2861 if (!dbus_message_append_args(m,
2862 DBUS_TYPE_STRING, name,
2863 DBUS_TYPE_INVALID)) {
2864 log_error("Could not append arguments to message.");
2869 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2870 log_error("Failed to issue method call: %s", bus_error_message(&error));
2872 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2873 ret = 4; /* According to LSB: "program or service status is unknown" */
2880 } else if (show_properties) {
2882 /* Interpret as job id */
2884 if (!(m = dbus_message_new_method_call(
2885 "org.freedesktop.systemd1",
2886 "/org/freedesktop/systemd1",
2887 "org.freedesktop.systemd1.Manager",
2889 log_error("Could not allocate message.");
2894 if (!dbus_message_append_args(m,
2895 DBUS_TYPE_UINT32, &id,
2896 DBUS_TYPE_INVALID)) {
2897 log_error("Could not append arguments to message.");
2902 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2903 log_error("Failed to issue method call: %s", bus_error_message(&error));
2909 /* Interpret as PID */
2911 if (!(m = dbus_message_new_method_call(
2912 "org.freedesktop.systemd1",
2913 "/org/freedesktop/systemd1",
2914 "org.freedesktop.systemd1.Manager",
2916 log_error("Could not allocate message.");
2921 if (!dbus_message_append_args(m,
2922 DBUS_TYPE_UINT32, &id,
2923 DBUS_TYPE_INVALID)) {
2924 log_error("Could not append arguments to message.");
2929 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2930 log_error("Failed to issue method call: %s", bus_error_message(&error));
2936 if (!dbus_message_get_args(reply, &error,
2937 DBUS_TYPE_OBJECT_PATH, &path,
2938 DBUS_TYPE_INVALID)) {
2939 log_error("Failed to parse reply: %s", bus_error_message(&error));
2944 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
2947 dbus_message_unref(m);
2948 dbus_message_unref(reply);
2954 dbus_message_unref(m);
2957 dbus_message_unref(reply);
2959 dbus_error_free(&error);
2964 static int dump(DBusConnection *bus, char **args) {
2965 DBusMessage *m = NULL, *reply = NULL;
2970 dbus_error_init(&error);
2972 pager_open_if_enabled();
2974 if (!(m = dbus_message_new_method_call(
2975 "org.freedesktop.systemd1",
2976 "/org/freedesktop/systemd1",
2977 "org.freedesktop.systemd1.Manager",
2979 log_error("Could not allocate message.");
2983 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2984 log_error("Failed to issue method call: %s", bus_error_message(&error));
2989 if (!dbus_message_get_args(reply, &error,
2990 DBUS_TYPE_STRING, &text,
2991 DBUS_TYPE_INVALID)) {
2992 log_error("Failed to parse reply: %s", bus_error_message(&error));
2997 fputs(text, stdout);
3003 dbus_message_unref(m);
3006 dbus_message_unref(reply);
3008 dbus_error_free(&error);
3013 static int snapshot(DBusConnection *bus, char **args) {
3014 DBusMessage *m = NULL, *reply = NULL;
3017 const char *name = "", *path, *id;
3018 dbus_bool_t cleanup = FALSE;
3019 DBusMessageIter iter, sub;
3021 *interface = "org.freedesktop.systemd1.Unit",
3024 dbus_error_init(&error);
3026 if (!(m = dbus_message_new_method_call(
3027 "org.freedesktop.systemd1",
3028 "/org/freedesktop/systemd1",
3029 "org.freedesktop.systemd1.Manager",
3030 "CreateSnapshot"))) {
3031 log_error("Could not allocate message.");
3035 if (strv_length(args) > 1)
3038 if (!dbus_message_append_args(m,
3039 DBUS_TYPE_STRING, &name,
3040 DBUS_TYPE_BOOLEAN, &cleanup,
3041 DBUS_TYPE_INVALID)) {
3042 log_error("Could not append arguments to message.");
3047 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3048 log_error("Failed to issue method call: %s", bus_error_message(&error));
3053 if (!dbus_message_get_args(reply, &error,
3054 DBUS_TYPE_OBJECT_PATH, &path,
3055 DBUS_TYPE_INVALID)) {
3056 log_error("Failed to parse reply: %s", bus_error_message(&error));
3061 dbus_message_unref(m);
3062 if (!(m = dbus_message_new_method_call(
3063 "org.freedesktop.systemd1",
3065 "org.freedesktop.DBus.Properties",
3067 log_error("Could not allocate message.");
3071 if (!dbus_message_append_args(m,
3072 DBUS_TYPE_STRING, &interface,
3073 DBUS_TYPE_STRING, &property,
3074 DBUS_TYPE_INVALID)) {
3075 log_error("Could not append arguments to message.");
3080 dbus_message_unref(reply);
3081 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3082 log_error("Failed to issue method call: %s", bus_error_message(&error));
3087 if (!dbus_message_iter_init(reply, &iter) ||
3088 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3089 log_error("Failed to parse reply.");
3094 dbus_message_iter_recurse(&iter, &sub);
3096 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3097 log_error("Failed to parse reply.");
3102 dbus_message_iter_get_basic(&sub, &id);
3110 dbus_message_unref(m);
3113 dbus_message_unref(reply);
3115 dbus_error_free(&error);
3120 static int delete_snapshot(DBusConnection *bus, char **args) {
3121 DBusMessage *m = NULL, *reply = NULL;
3129 dbus_error_init(&error);
3131 STRV_FOREACH(name, args+1) {
3132 const char *path = NULL;
3134 if (!(m = dbus_message_new_method_call(
3135 "org.freedesktop.systemd1",
3136 "/org/freedesktop/systemd1",
3137 "org.freedesktop.systemd1.Manager",
3139 log_error("Could not allocate message.");
3144 if (!dbus_message_append_args(m,
3145 DBUS_TYPE_STRING, name,
3146 DBUS_TYPE_INVALID)) {
3147 log_error("Could not append arguments to message.");
3152 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3153 log_error("Failed to issue method call: %s", bus_error_message(&error));
3158 if (!dbus_message_get_args(reply, &error,
3159 DBUS_TYPE_OBJECT_PATH, &path,
3160 DBUS_TYPE_INVALID)) {
3161 log_error("Failed to parse reply: %s", bus_error_message(&error));
3166 dbus_message_unref(m);
3167 if (!(m = dbus_message_new_method_call(
3168 "org.freedesktop.systemd1",
3170 "org.freedesktop.systemd1.Snapshot",
3172 log_error("Could not allocate message.");
3177 dbus_message_unref(reply);
3178 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3179 log_error("Failed to issue method call: %s", bus_error_message(&error));
3184 dbus_message_unref(m);
3185 dbus_message_unref(reply);
3193 dbus_message_unref(m);
3196 dbus_message_unref(reply);
3198 dbus_error_free(&error);
3203 static int daemon_reload(DBusConnection *bus, char **args) {
3204 DBusMessage *m = NULL, *reply = NULL;
3209 dbus_error_init(&error);
3211 if (arg_action == ACTION_RELOAD)
3213 else if (arg_action == ACTION_REEXEC)
3214 method = "Reexecute";
3216 assert(arg_action == ACTION_SYSTEMCTL);
3219 streq(args[0], "clear-jobs") ||
3220 streq(args[0], "cancel") ? "ClearJobs" :
3221 streq(args[0], "daemon-reexec") ? "Reexecute" :
3222 streq(args[0], "reset-failed") ? "ResetFailed" :
3223 streq(args[0], "halt") ? "Halt" :
3224 streq(args[0], "poweroff") ? "PowerOff" :
3225 streq(args[0], "reboot") ? "Reboot" :
3226 streq(args[0], "kexec") ? "KExec" :
3227 streq(args[0], "exit") ? "Exit" :
3228 /* "daemon-reload" */ "Reload";
3231 if (!(m = dbus_message_new_method_call(
3232 "org.freedesktop.systemd1",
3233 "/org/freedesktop/systemd1",
3234 "org.freedesktop.systemd1.Manager",
3236 log_error("Could not allocate message.");
3240 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3242 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3243 /* There's always a fallback possible for
3244 * legacy actions. */
3249 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3250 /* On reexecution, we expect a disconnect, not
3256 log_error("Failed to issue method call: %s", bus_error_message(&error));
3265 dbus_message_unref(m);
3268 dbus_message_unref(reply);
3270 dbus_error_free(&error);
3275 static int reset_failed(DBusConnection *bus, char **args) {
3276 DBusMessage *m = NULL;
3282 dbus_error_init(&error);
3284 if (strv_length(args) <= 1)
3285 return daemon_reload(bus, args);
3287 STRV_FOREACH(name, args+1) {
3290 if (!(m = dbus_message_new_method_call(
3291 "org.freedesktop.systemd1",
3292 "/org/freedesktop/systemd1",
3293 "org.freedesktop.systemd1.Manager",
3294 "ResetFailedUnit"))) {
3295 log_error("Could not allocate message.");
3300 if (!dbus_message_append_args(m,
3301 DBUS_TYPE_STRING, name,
3302 DBUS_TYPE_INVALID)) {
3303 log_error("Could not append arguments to message.");
3308 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3309 log_error("Failed to issue method call: %s", bus_error_message(&error));
3314 dbus_message_unref(m);
3315 dbus_message_unref(reply);
3323 dbus_message_unref(m);
3325 dbus_error_free(&error);
3330 static int show_enviroment(DBusConnection *bus, char **args) {
3331 DBusMessage *m = NULL, *reply = NULL;
3333 DBusMessageIter iter, sub, sub2;
3336 *interface = "org.freedesktop.systemd1.Manager",
3337 *property = "Environment";
3339 dbus_error_init(&error);
3341 pager_open_if_enabled();
3343 if (!(m = dbus_message_new_method_call(
3344 "org.freedesktop.systemd1",
3345 "/org/freedesktop/systemd1",
3346 "org.freedesktop.DBus.Properties",
3348 log_error("Could not allocate message.");
3352 if (!dbus_message_append_args(m,
3353 DBUS_TYPE_STRING, &interface,
3354 DBUS_TYPE_STRING, &property,
3355 DBUS_TYPE_INVALID)) {
3356 log_error("Could not append arguments to message.");
3361 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3362 log_error("Failed to issue method call: %s", bus_error_message(&error));
3367 if (!dbus_message_iter_init(reply, &iter) ||
3368 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3369 log_error("Failed to parse reply.");
3374 dbus_message_iter_recurse(&iter, &sub);
3376 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3377 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3378 log_error("Failed to parse reply.");
3383 dbus_message_iter_recurse(&sub, &sub2);
3385 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3388 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3389 log_error("Failed to parse reply.");
3394 dbus_message_iter_get_basic(&sub2, &text);
3395 printf("%s\n", text);
3397 dbus_message_iter_next(&sub2);
3404 dbus_message_unref(m);
3407 dbus_message_unref(reply);
3409 dbus_error_free(&error);
3414 static int set_environment(DBusConnection *bus, char **args) {
3415 DBusMessage *m = NULL, *reply = NULL;
3419 DBusMessageIter iter, sub;
3422 dbus_error_init(&error);
3424 method = streq(args[0], "set-environment")
3426 : "UnsetEnvironment";
3428 if (!(m = dbus_message_new_method_call(
3429 "org.freedesktop.systemd1",
3430 "/org/freedesktop/systemd1",
3431 "org.freedesktop.systemd1.Manager",
3434 log_error("Could not allocate message.");
3438 dbus_message_iter_init_append(m, &iter);
3440 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3441 log_error("Could not append arguments to message.");
3446 STRV_FOREACH(name, args+1)
3447 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3448 log_error("Could not append arguments to message.");
3453 if (!dbus_message_iter_close_container(&iter, &sub)) {
3454 log_error("Could not append arguments to message.");
3459 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3460 log_error("Failed to issue method call: %s", bus_error_message(&error));
3469 dbus_message_unref(m);
3472 dbus_message_unref(reply);
3474 dbus_error_free(&error);
3479 static int enable_sysv_units(char **args) {
3482 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3483 const char *verb = args[0];
3484 unsigned f = 1, t = 1;
3487 if (arg_scope != UNIT_FILE_SYSTEM)
3490 if (!streq(verb, "enable") &&
3491 !streq(verb, "disable") &&
3492 !streq(verb, "is-enabled"))
3495 /* Processes all SysV units, and reshuffles the array so that
3496 * afterwards only the native units remain */
3499 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false);
3505 for (f = 1; args[f]; f++) {
3508 bool found_native = false, found_sysv;
3510 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3511 char **k, *l, *q = NULL;
3518 if (!endswith(name, ".service"))
3521 if (path_is_absolute(name))
3524 STRV_FOREACH(k, paths.unit_path) {
3527 if (!isempty(arg_root))
3528 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3530 asprintf(&p, "%s/%s", *k, name);
3533 log_error("No memory");
3538 found_native = access(p, F_OK) >= 0;
3549 if (!isempty(arg_root))
3550 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3552 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3554 log_error("No memory");
3559 p[strlen(p) - sizeof(".service") + 1] = 0;
3560 found_sysv = access(p, F_OK) >= 0;
3567 /* Mark this entry, so that we don't try enabling it as native unit */
3568 args[f] = (char*) "";
3570 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3572 if (!isempty(arg_root))
3573 argv[c++] = q = strappend("--root=", arg_root);
3575 argv[c++] = file_name_from_path(p);
3577 streq(verb, "enable") ? "on" :
3578 streq(verb, "disable") ? "off" : "--level=5";
3581 l = strv_join((char**)argv, " ");
3583 log_error("No memory.");
3590 log_info("Executing %s", l);
3595 log_error("Failed to fork: %m");
3600 } else if (pid == 0) {
3603 execv(argv[0], (char**) argv);
3604 _exit(EXIT_FAILURE);
3610 j = wait_for_terminate(pid, &status);
3612 log_error("Failed to wait for child: %s", strerror(-r));
3617 if (status.si_code == CLD_EXITED) {
3618 if (streq(verb, "is-enabled")) {
3619 if (status.si_status == 0) {
3628 } else if (status.si_status != 0) {
3639 lookup_paths_free(&paths);
3641 /* Drop all SysV units */
3642 for (f = 1, t = 1; args[f]; f++) {
3644 if (isempty(args[f]))
3647 args[t++] = args[f];
3656 static int enable_unit(DBusConnection *bus, char **args) {
3657 const char *verb = args[0];
3658 UnitFileChange *changes = NULL;
3659 unsigned n_changes = 0, i;
3660 int carries_install_info = -1;
3661 DBusMessage *m = NULL, *reply = NULL;
3665 r = enable_sysv_units(args);
3672 dbus_error_init(&error);
3674 if (!bus || avoid_bus()) {
3675 if (streq(verb, "enable")) {
3676 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3677 carries_install_info = r;
3678 } else if (streq(verb, "disable"))
3679 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3680 else if (streq(verb, "reenable")) {
3681 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3682 carries_install_info = r;
3683 } else if (streq(verb, "link"))
3684 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3685 else if (streq(verb, "preset")) {
3686 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3687 carries_install_info = r;
3688 } else if (streq(verb, "mask"))
3689 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3690 else if (streq(verb, "unmask"))
3691 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3693 assert_not_reached("Unknown verb");
3696 log_error("Operation failed: %s", strerror(-r));
3701 for (i = 0; i < n_changes; i++) {
3702 if (changes[i].type == UNIT_FILE_SYMLINK)
3703 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
3705 log_info("rm '%s'", changes[i].path);
3711 bool send_force = true, expect_carries_install_info = false;
3713 DBusMessageIter iter, sub, sub2;
3715 if (streq(verb, "enable")) {
3716 method = "EnableUnitFiles";
3717 expect_carries_install_info = true;
3718 } else if (streq(verb, "disable")) {
3719 method = "DisableUnitFiles";
3721 } else if (streq(verb, "reenable")) {
3722 method = "ReenableUnitFiles";
3723 expect_carries_install_info = true;
3724 } else if (streq(verb, "link"))
3725 method = "LinkUnitFiles";
3726 else if (streq(verb, "preset")) {
3727 method = "PresetUnitFiles";
3728 expect_carries_install_info = true;
3729 } else if (streq(verb, "mask"))
3730 method = "MaskUnitFiles";
3731 else if (streq(verb, "unmask")) {
3732 method = "UnmaskUnitFiles";
3735 assert_not_reached("Unknown verb");
3737 m = dbus_message_new_method_call(
3738 "org.freedesktop.systemd1",
3739 "/org/freedesktop/systemd1",
3740 "org.freedesktop.systemd1.Manager",
3743 log_error("Out of memory");
3748 dbus_message_iter_init_append(m, &iter);
3750 r = bus_append_strv_iter(&iter, args+1);
3752 log_error("Failed to append unit files.");
3757 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
3758 log_error("Failed to append runtime boolean.");
3766 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
3767 log_error("Failed to append force boolean.");
3773 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3775 log_error("Failed to issue method call: %s", bus_error_message(&error));
3780 if (!dbus_message_iter_init(reply, &iter)) {
3781 log_error("Failed to initialize iterator.");
3785 if (expect_carries_install_info) {
3786 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
3788 log_error("Failed to parse reply.");
3792 carries_install_info = b;
3795 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3796 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
3797 log_error("Failed to parse reply.");
3802 dbus_message_iter_recurse(&iter, &sub);
3803 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3804 const char *type, *path, *source;
3806 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
3807 log_error("Failed to parse reply.");
3812 dbus_message_iter_recurse(&sub, &sub2);
3814 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
3815 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
3816 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
3817 log_error("Failed to parse reply.");
3823 if (streq(type, "symlink"))
3824 log_info("ln -s '%s' '%s'", source, path);
3826 log_info("rm '%s'", path);
3829 dbus_message_iter_next(&sub);
3832 /* Try to reload if enabeld */
3834 r = daemon_reload(bus, args);
3837 if (carries_install_info == 0)
3838 log_warning("Warning: unit files do not carry install information. No operation executed.");
3842 dbus_message_unref(m);
3845 dbus_message_unref(reply);
3847 unit_file_changes_free(changes, n_changes);
3849 dbus_error_free(&error);
3853 static int unit_is_enabled(DBusConnection *bus, char **args) {
3856 DBusMessage *m = NULL, *reply = NULL;
3860 dbus_error_init(&error);
3862 r = enable_sysv_units(args);
3868 if (!bus || avoid_bus()) {
3870 STRV_FOREACH(name, args+1) {
3871 UnitFileState state;
3873 state = unit_file_get_state(arg_scope, arg_root, *name);
3879 if (state == UNIT_FILE_ENABLED ||
3880 state == UNIT_FILE_ENABLED_RUNTIME ||
3881 state == UNIT_FILE_STATIC)
3885 puts(unit_file_state_to_string(state));
3889 STRV_FOREACH(name, args+1) {
3892 m = dbus_message_new_method_call(
3893 "org.freedesktop.systemd1",
3894 "/org/freedesktop/systemd1",
3895 "org.freedesktop.systemd1.Manager",
3896 "GetUnitFileState");
3898 log_error("Out of memory");
3903 if (!dbus_message_append_args(m,
3904 DBUS_TYPE_STRING, name,
3905 DBUS_TYPE_INVALID)) {
3906 log_error("Could not append arguments to message.");
3911 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3913 log_error("Failed to issue method call: %s", bus_error_message(&error));
3918 if (!dbus_message_get_args(reply, &error,
3919 DBUS_TYPE_STRING, &s,
3920 DBUS_TYPE_INVALID)) {
3921 log_error("Failed to parse reply: %s", bus_error_message(&error));
3926 dbus_message_unref(m);
3927 dbus_message_unref(reply);
3930 if (streq(s, "enabled") ||
3931 streq(s, "enabled-runtime") ||
3940 r = enabled ? 0 : 1;
3944 dbus_message_unref(m);
3947 dbus_message_unref(reply);
3949 dbus_error_free(&error);
3953 static int systemctl_help(void) {
3955 pager_open_if_enabled();
3957 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
3958 "Query or send control commands to the systemd manager.\n\n"
3959 " -h --help Show this help\n"
3960 " --version Show package version\n"
3961 " -t --type=TYPE List only units of a particular type\n"
3962 " -p --property=NAME Show only properties by this name\n"
3963 " -a --all Show all units/properties, including dead/empty ones\n"
3964 " --failed Show only failed units\n"
3965 " --full Don't ellipsize unit names on output\n"
3966 " --fail When queueing a new job, fail if conflicting jobs are\n"
3968 " --ignore-dependencies\n"
3969 " When queueing a new job, ignore all its dependencies\n"
3970 " --kill-who=WHO Who to send signal to\n"
3971 " -s --signal=SIGNAL Which signal to send\n"
3972 " -H --host=[USER@]HOST\n"
3973 " Show information for remote host\n"
3974 " -P --privileged Acquire privileges before execution\n"
3975 " -q --quiet Suppress output\n"
3976 " --no-block Do not wait until operation finished\n"
3977 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3978 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3980 " --no-legend Do not print a legend (column headers and hints)\n"
3981 " --no-pager Do not pipe output into a pager\n"
3982 " --no-ask-password\n"
3983 " Do not ask for system passwords\n"
3984 " --order When generating graph for dot, show only order\n"
3985 " --require When generating graph for dot, show only requirement\n"
3986 " --system Connect to system manager\n"
3987 " --user Connect to user service manager\n"
3988 " --global Enable/disable unit files globally\n"
3989 " -f --force When enabling unit files, override existing symlinks\n"
3990 " When shutting down, execute action immediately\n"
3991 " --root=PATH Enable unit files in the specified root directory\n"
3992 " --runtime Enable unit files only temporarily until next reboot\n"
3993 " -n --lines=INTEGER Journal entries to show\n"
3994 " --follow Follow journal\n"
3995 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
3996 " verbose, export, json, cat)\n\n"
3998 " list-units List loaded units\n"
3999 " start [NAME...] Start (activate) one or more units\n"
4000 " stop [NAME...] Stop (deactivate) one or more units\n"
4001 " reload [NAME...] Reload one or more units\n"
4002 " restart [NAME...] Start or restart one or more units\n"
4003 " try-restart [NAME...] Restart one or more units if active\n"
4004 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4005 " otherwise start or restart\n"
4006 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4007 " otherwise restart if active\n"
4008 " isolate [NAME] Start one unit and stop all others\n"
4009 " kill [NAME...] Send signal to processes of a unit\n"
4010 " is-active [NAME...] Check whether units are active\n"
4011 " status [NAME...|PID...] Show runtime status of one or more units\n"
4012 " show [NAME...|JOB...] Show properties of one or more\n"
4013 " units/jobs or the manager\n"
4014 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4016 " load [NAME...] Load one or more units\n\n"
4017 "Unit File Commands:\n"
4018 " list-unit-files List installed unit files\n"
4019 " enable [NAME...] Enable one or more unit files\n"
4020 " disable [NAME...] Disable one or more unit files\n"
4021 " reenable [NAME...] Reenable one or more unit files\n"
4022 " preset [NAME...] Enable/disable one or more unit files\n"
4023 " based on preset configuration\n"
4024 " mask [NAME...] Mask one or more units\n"
4025 " unmask [NAME...] Unmask one or more units\n"
4026 " link [PATH...] Link one or more units files into\n"
4027 " the search path\n"
4028 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4030 " list-jobs List jobs\n"
4031 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4032 "Status Commands:\n"
4033 " dump Dump server status\n"
4034 " dot Dump dependency graph for dot(1)\n\n"
4035 "Snapshot Commands:\n"
4036 " snapshot [NAME] Create a snapshot\n"
4037 " delete [NAME...] Remove one or more snapshots\n\n"
4038 "Environment Commands:\n"
4039 " show-environment Dump environment\n"
4040 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4041 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4042 "Manager Lifecycle Commands:\n"
4043 " daemon-reload Reload systemd manager configuration\n"
4044 " daemon-reexec Reexecute systemd manager\n\n"
4045 "System Commands:\n"
4046 " default Enter system default mode\n"
4047 " rescue Enter system rescue mode\n"
4048 " emergency Enter system emergency mode\n"
4049 " halt Shut down and halt the system\n"
4050 " poweroff Shut down and power-off the system\n"
4051 " reboot Shut down and reboot the system\n"
4052 " kexec Shut down and reboot the system with kexec\n"
4053 " exit Ask for user instance termination\n",
4054 program_invocation_short_name);
4059 static int halt_help(void) {
4061 printf("%s [OPTIONS...]\n\n"
4062 "%s the system.\n\n"
4063 " --help Show this help\n"
4064 " --halt Halt the machine\n"
4065 " -p --poweroff Switch off the machine\n"
4066 " --reboot Reboot the machine\n"
4067 " -f --force Force immediate halt/power-off/reboot\n"
4068 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4069 " -d --no-wtmp Don't write wtmp record\n"
4070 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4071 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4072 program_invocation_short_name,
4073 arg_action == ACTION_REBOOT ? "Reboot" :
4074 arg_action == ACTION_POWEROFF ? "Power off" :
4080 static int shutdown_help(void) {
4082 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4083 "Shut down the system.\n\n"
4084 " --help Show this help\n"
4085 " -H --halt Halt the machine\n"
4086 " -P --poweroff Power-off the machine\n"
4087 " -r --reboot Reboot the machine\n"
4088 " -h Equivalent to --poweroff, overriden by --halt\n"
4089 " -k Don't halt/power-off/reboot, just send warnings\n"
4090 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4091 " -c Cancel a pending shutdown\n",
4092 program_invocation_short_name);
4097 static int telinit_help(void) {
4099 printf("%s [OPTIONS...] {COMMAND}\n\n"
4100 "Send control commands to the init daemon.\n\n"
4101 " --help Show this help\n"
4102 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4104 " 0 Power-off the machine\n"
4105 " 6 Reboot the machine\n"
4106 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4107 " 1, s, S Enter rescue mode\n"
4108 " q, Q Reload init daemon configuration\n"
4109 " u, U Reexecute init daemon\n",
4110 program_invocation_short_name);
4115 static int runlevel_help(void) {
4117 printf("%s [OPTIONS...]\n\n"
4118 "Prints the previous and current runlevel of the init system.\n\n"
4119 " --help Show this help\n",
4120 program_invocation_short_name);
4125 static int systemctl_parse_argv(int argc, char *argv[]) {
4129 ARG_IGNORE_DEPENDENCIES,
4145 ARG_NO_ASK_PASSWORD,
4151 static const struct option options[] = {
4152 { "help", no_argument, NULL, 'h' },
4153 { "version", no_argument, NULL, ARG_VERSION },
4154 { "type", required_argument, NULL, 't' },
4155 { "property", required_argument, NULL, 'p' },
4156 { "all", no_argument, NULL, 'a' },
4157 { "failed", no_argument, NULL, ARG_FAILED },
4158 { "full", no_argument, NULL, ARG_FULL },
4159 { "fail", no_argument, NULL, ARG_FAIL },
4160 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4161 { "user", no_argument, NULL, ARG_USER },
4162 { "system", no_argument, NULL, ARG_SYSTEM },
4163 { "global", no_argument, NULL, ARG_GLOBAL },
4164 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4165 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4166 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4167 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4168 { "quiet", no_argument, NULL, 'q' },
4169 { "order", no_argument, NULL, ARG_ORDER },
4170 { "require", no_argument, NULL, ARG_REQUIRE },
4171 { "root", required_argument, NULL, ARG_ROOT },
4172 { "force", no_argument, NULL, 'f' },
4173 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4174 { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */
4175 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4176 { "signal", required_argument, NULL, 's' },
4177 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4178 { "host", required_argument, NULL, 'H' },
4179 { "privileged",no_argument, NULL, 'P' },
4180 { "runtime", no_argument, NULL, ARG_RUNTIME },
4181 { "lines", required_argument, NULL, 'n' },
4182 { "follow", no_argument, NULL, ARG_FOLLOW },
4183 { "output", required_argument, NULL, 'o' },
4184 { NULL, 0, NULL, 0 }
4192 /* Only when running as systemctl we ask for passwords */
4193 arg_ask_password = true;
4195 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4204 puts(PACKAGE_STRING);
4206 puts(SYSTEMD_FEATURES);
4216 if (!(l = strv_append(arg_property, optarg)))
4219 strv_free(arg_property);
4222 /* If the user asked for a particular
4223 * property, show it to him, even if it is
4234 arg_job_mode = "fail";
4237 case ARG_IGNORE_DEPENDENCIES:
4238 arg_job_mode = "ignore-dependencies";
4242 arg_scope = UNIT_FILE_USER;
4246 arg_scope = UNIT_FILE_SYSTEM;
4250 arg_scope = UNIT_FILE_GLOBAL;
4254 arg_no_block = true;
4258 arg_no_legend = true;
4262 arg_no_pager = true;
4270 arg_dot = DOT_ORDER;
4274 arg_dot = DOT_REQUIRE;
4298 arg_no_reload = true;
4302 arg_kill_who = optarg;
4306 arg_kill_mode = optarg;
4310 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4311 log_error("Failed to parse signal string %s.", optarg);
4316 case ARG_NO_ASK_PASSWORD:
4317 arg_ask_password = false;
4321 arg_transport = TRANSPORT_POLKIT;
4325 arg_transport = TRANSPORT_SSH;
4334 if (safe_atou(optarg, &arg_lines) < 0) {
4335 log_error("Failed to parse lines '%s'", optarg);
4345 arg_output = output_mode_from_string(optarg);
4346 if (arg_output < 0) {
4347 log_error("Unknown output '%s'.", optarg);
4356 log_error("Unknown option code %c", c);
4361 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4362 log_error("Cannot access user instance remotely.");
4369 static int halt_parse_argv(int argc, char *argv[]) {
4378 static const struct option options[] = {
4379 { "help", no_argument, NULL, ARG_HELP },
4380 { "halt", no_argument, NULL, ARG_HALT },
4381 { "poweroff", no_argument, NULL, 'p' },
4382 { "reboot", no_argument, NULL, ARG_REBOOT },
4383 { "force", no_argument, NULL, 'f' },
4384 { "wtmp-only", no_argument, NULL, 'w' },
4385 { "no-wtmp", no_argument, NULL, 'd' },
4386 { "no-sync", no_argument, NULL, 'n' },
4387 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4388 { NULL, 0, NULL, 0 }
4396 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4397 if (runlevel == '0' || runlevel == '6')
4398 arg_immediate = true;
4400 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4408 arg_action = ACTION_HALT;
4412 if (arg_action != ACTION_REBOOT)
4413 arg_action = ACTION_POWEROFF;
4417 arg_action = ACTION_REBOOT;
4421 arg_immediate = true;
4442 /* Compatibility nops */
4449 log_error("Unknown option code %c", c);
4454 if (optind < argc) {
4455 log_error("Too many arguments.");
4462 static int parse_time_spec(const char *t, usec_t *_u) {
4466 if (streq(t, "now"))
4468 else if (!strchr(t, ':')) {
4471 if (safe_atou64(t, &u) < 0)
4474 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4483 hour = strtol(t, &e, 10);
4484 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4487 minute = strtol(e+1, &e, 10);
4488 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4491 n = now(CLOCK_REALTIME);
4492 s = (time_t) (n / USEC_PER_SEC);
4495 assert_se(localtime_r(&s, &tm));
4497 tm.tm_hour = (int) hour;
4498 tm.tm_min = (int) minute;
4501 assert_se(s = mktime(&tm));
4503 *_u = (usec_t) s * USEC_PER_SEC;
4506 *_u += USEC_PER_DAY;
4512 static int shutdown_parse_argv(int argc, char *argv[]) {
4519 static const struct option options[] = {
4520 { "help", no_argument, NULL, ARG_HELP },
4521 { "halt", no_argument, NULL, 'H' },
4522 { "poweroff", no_argument, NULL, 'P' },
4523 { "reboot", no_argument, NULL, 'r' },
4524 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4525 { NULL, 0, NULL, 0 }
4533 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4541 arg_action = ACTION_HALT;
4545 arg_action = ACTION_POWEROFF;
4550 arg_action = ACTION_KEXEC;
4552 arg_action = ACTION_REBOOT;
4556 if (arg_action != ACTION_HALT)
4557 arg_action = ACTION_POWEROFF;
4570 /* Compatibility nops */
4574 arg_action = ACTION_CANCEL_SHUTDOWN;
4581 log_error("Unknown option code %c", c);
4586 if (argc > optind) {
4587 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4588 log_error("Failed to parse time specification: %s", argv[optind]);
4592 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4594 /* We skip the time argument */
4595 if (argc > optind + 1)
4596 arg_wall = argv + optind + 1;
4603 static int telinit_parse_argv(int argc, char *argv[]) {
4610 static const struct option options[] = {
4611 { "help", no_argument, NULL, ARG_HELP },
4612 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4613 { NULL, 0, NULL, 0 }
4616 static const struct {
4620 { '0', ACTION_POWEROFF },
4621 { '6', ACTION_REBOOT },
4622 { '1', ACTION_RESCUE },
4623 { '2', ACTION_RUNLEVEL2 },
4624 { '3', ACTION_RUNLEVEL3 },
4625 { '4', ACTION_RUNLEVEL4 },
4626 { '5', ACTION_RUNLEVEL5 },
4627 { 's', ACTION_RESCUE },
4628 { 'S', ACTION_RESCUE },
4629 { 'q', ACTION_RELOAD },
4630 { 'Q', ACTION_RELOAD },
4631 { 'u', ACTION_REEXEC },
4632 { 'U', ACTION_REEXEC }
4641 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4656 log_error("Unknown option code %c", c);
4661 if (optind >= argc) {
4666 if (optind + 1 < argc) {
4667 log_error("Too many arguments.");
4671 if (strlen(argv[optind]) != 1) {
4672 log_error("Expected single character argument.");
4676 for (i = 0; i < ELEMENTSOF(table); i++)
4677 if (table[i].from == argv[optind][0])
4680 if (i >= ELEMENTSOF(table)) {
4681 log_error("Unknown command %s.", argv[optind]);
4685 arg_action = table[i].to;
4692 static int runlevel_parse_argv(int argc, char *argv[]) {
4698 static const struct option options[] = {
4699 { "help", no_argument, NULL, ARG_HELP },
4700 { NULL, 0, NULL, 0 }
4708 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4719 log_error("Unknown option code %c", c);
4724 if (optind < argc) {
4725 log_error("Too many arguments.");
4732 static int parse_argv(int argc, char *argv[]) {
4736 if (program_invocation_short_name) {
4738 if (strstr(program_invocation_short_name, "halt")) {
4739 arg_action = ACTION_HALT;
4740 return halt_parse_argv(argc, argv);
4741 } else if (strstr(program_invocation_short_name, "poweroff")) {
4742 arg_action = ACTION_POWEROFF;
4743 return halt_parse_argv(argc, argv);
4744 } else if (strstr(program_invocation_short_name, "reboot")) {
4746 arg_action = ACTION_KEXEC;
4748 arg_action = ACTION_REBOOT;
4749 return halt_parse_argv(argc, argv);
4750 } else if (strstr(program_invocation_short_name, "shutdown")) {
4751 arg_action = ACTION_POWEROFF;
4752 return shutdown_parse_argv(argc, argv);
4753 } else if (strstr(program_invocation_short_name, "init")) {
4755 if (sd_booted() > 0) {
4756 arg_action = ACTION_INVALID;
4757 return telinit_parse_argv(argc, argv);
4759 /* Hmm, so some other init system is
4760 * running, we need to forward this
4761 * request to it. For now we simply
4762 * guess that it is Upstart. */
4764 execv("/lib/upstart/telinit", argv);
4766 log_error("Couldn't find an alternative telinit implementation to spawn.");
4770 } else if (strstr(program_invocation_short_name, "runlevel")) {
4771 arg_action = ACTION_RUNLEVEL;
4772 return runlevel_parse_argv(argc, argv);
4776 arg_action = ACTION_SYSTEMCTL;
4777 return systemctl_parse_argv(argc, argv);
4780 static int action_to_runlevel(void) {
4782 static const char table[_ACTION_MAX] = {
4783 [ACTION_HALT] = '0',
4784 [ACTION_POWEROFF] = '0',
4785 [ACTION_REBOOT] = '6',
4786 [ACTION_RUNLEVEL2] = '2',
4787 [ACTION_RUNLEVEL3] = '3',
4788 [ACTION_RUNLEVEL4] = '4',
4789 [ACTION_RUNLEVEL5] = '5',
4790 [ACTION_RESCUE] = '1'
4793 assert(arg_action < _ACTION_MAX);
4795 return table[arg_action];
4798 static int talk_upstart(void) {
4799 DBusMessage *m = NULL, *reply = NULL;
4801 int previous, rl, r;
4803 env1_buf[] = "RUNLEVEL=X",
4804 env2_buf[] = "PREVLEVEL=X";
4805 char *env1 = env1_buf, *env2 = env2_buf;
4806 const char *emit = "runlevel";
4807 dbus_bool_t b_false = FALSE;
4808 DBusMessageIter iter, sub;
4809 DBusConnection *bus;
4811 dbus_error_init(&error);
4813 if (!(rl = action_to_runlevel()))
4816 if (utmp_get_runlevel(&previous, NULL) < 0)
4819 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
4820 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4825 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
4830 if ((r = bus_check_peercred(bus)) < 0) {
4831 log_error("Failed to verify owner of bus.");
4835 if (!(m = dbus_message_new_method_call(
4836 "com.ubuntu.Upstart",
4837 "/com/ubuntu/Upstart",
4838 "com.ubuntu.Upstart0_6",
4841 log_error("Could not allocate message.");
4846 dbus_message_iter_init_append(m, &iter);
4848 env1_buf[sizeof(env1_buf)-2] = rl;
4849 env2_buf[sizeof(env2_buf)-2] = previous;
4851 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4852 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4853 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4854 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4855 !dbus_message_iter_close_container(&iter, &sub) ||
4856 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4857 log_error("Could not append arguments to message.");
4862 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4864 if (error_is_no_service(&error)) {
4869 log_error("Failed to issue method call: %s", bus_error_message(&error));
4878 dbus_message_unref(m);
4881 dbus_message_unref(reply);
4884 dbus_connection_flush(bus);
4885 dbus_connection_close(bus);
4886 dbus_connection_unref(bus);
4889 dbus_error_free(&error);
4894 static int talk_initctl(void) {
4895 struct init_request request;
4899 if (!(rl = action_to_runlevel()))
4903 request.magic = INIT_MAGIC;
4904 request.sleeptime = 0;
4905 request.cmd = INIT_CMD_RUNLVL;
4906 request.runlevel = rl;
4908 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4910 if (errno == ENOENT)
4913 log_error("Failed to open "INIT_FIFO": %m");
4918 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4919 close_nointr_nofail(fd);
4922 log_error("Failed to write to "INIT_FIFO": %m");
4923 return errno ? -errno : -EIO;
4929 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
4931 static const struct {
4939 int (* const dispatch)(DBusConnection *bus, char **args);
4941 { "list-units", LESS, 1, list_units },
4942 { "list-unit-files", EQUAL, 1, list_unit_files },
4943 { "list-jobs", EQUAL, 1, list_jobs },
4944 { "clear-jobs", EQUAL, 1, daemon_reload },
4945 { "load", MORE, 2, load_unit },
4946 { "cancel", MORE, 2, cancel_job },
4947 { "start", MORE, 2, start_unit },
4948 { "stop", MORE, 2, start_unit },
4949 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
4950 { "reload", MORE, 2, start_unit },
4951 { "restart", MORE, 2, start_unit },
4952 { "try-restart", MORE, 2, start_unit },
4953 { "reload-or-restart", MORE, 2, start_unit },
4954 { "reload-or-try-restart", MORE, 2, start_unit },
4955 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4956 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
4957 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4958 { "isolate", EQUAL, 2, start_unit },
4959 { "kill", MORE, 2, kill_unit },
4960 { "is-active", MORE, 2, check_unit },
4961 { "check", MORE, 2, check_unit },
4962 { "show", MORE, 1, show },
4963 { "status", MORE, 2, show },
4964 { "dump", EQUAL, 1, dump },
4965 { "dot", EQUAL, 1, dot },
4966 { "snapshot", LESS, 2, snapshot },
4967 { "delete", MORE, 2, delete_snapshot },
4968 { "daemon-reload", EQUAL, 1, daemon_reload },
4969 { "daemon-reexec", EQUAL, 1, daemon_reload },
4970 { "show-environment", EQUAL, 1, show_enviroment },
4971 { "set-environment", MORE, 2, set_environment },
4972 { "unset-environment", MORE, 2, set_environment },
4973 { "halt", EQUAL, 1, start_special },
4974 { "poweroff", EQUAL, 1, start_special },
4975 { "reboot", EQUAL, 1, start_special },
4976 { "kexec", EQUAL, 1, start_special },
4977 { "default", EQUAL, 1, start_special },
4978 { "rescue", EQUAL, 1, start_special },
4979 { "emergency", EQUAL, 1, start_special },
4980 { "exit", EQUAL, 1, start_special },
4981 { "reset-failed", MORE, 1, reset_failed },
4982 { "enable", MORE, 2, enable_unit },
4983 { "disable", MORE, 2, enable_unit },
4984 { "is-enabled", MORE, 2, unit_is_enabled },
4985 { "reenable", MORE, 2, enable_unit },
4986 { "preset", MORE, 2, enable_unit },
4987 { "mask", MORE, 2, enable_unit },
4988 { "unmask", MORE, 2, enable_unit },
4989 { "link", MORE, 2, enable_unit }
4999 left = argc - optind;
5002 /* Special rule: no arguments means "list-units" */
5005 if (streq(argv[optind], "help")) {
5010 for (i = 0; i < ELEMENTSOF(verbs); i++)
5011 if (streq(argv[optind], verbs[i].verb))
5014 if (i >= ELEMENTSOF(verbs)) {
5015 log_error("Unknown operation %s", argv[optind]);
5020 switch (verbs[i].argc_cmp) {
5023 if (left != verbs[i].argc) {
5024 log_error("Invalid number of arguments.");
5031 if (left < verbs[i].argc) {
5032 log_error("Too few arguments.");
5039 if (left > verbs[i].argc) {
5040 log_error("Too many arguments.");
5047 assert_not_reached("Unknown comparison operator.");
5050 /* Require a bus connection for all operations but
5052 if (!streq(verbs[i].verb, "enable") &&
5053 !streq(verbs[i].verb, "disable") &&
5054 !streq(verbs[i].verb, "is-enabled") &&
5055 !streq(verbs[i].verb, "list-unit-files") &&
5056 !streq(verbs[i].verb, "reenable") &&
5057 !streq(verbs[i].verb, "preset") &&
5058 !streq(verbs[i].verb, "mask") &&
5059 !streq(verbs[i].verb, "unmask") &&
5060 !streq(verbs[i].verb, "link")) {
5062 if (running_in_chroot() > 0) {
5063 log_info("Running in chroot, ignoring request.");
5068 log_error("Failed to get D-Bus connection: %s",
5069 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5075 if (!bus && !avoid_bus()) {
5076 log_error("Failed to get D-Bus connection: %s",
5077 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5082 return verbs[i].dispatch(bus, argv + optind);
5085 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5087 struct msghdr msghdr;
5089 union sockaddr_union sockaddr;
5090 struct shutdownd_command c;
5095 c.dry_run = dry_run;
5099 strncpy(c.wall_message, message, sizeof(c.wall_message));
5101 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5105 sockaddr.sa.sa_family = AF_UNIX;
5106 sockaddr.un.sun_path[0] = 0;
5107 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5110 iovec.iov_base = (char*) &c;
5111 iovec.iov_len = sizeof(c);
5114 msghdr.msg_name = &sockaddr;
5115 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5117 msghdr.msg_iov = &iovec;
5118 msghdr.msg_iovlen = 1;
5120 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5121 close_nointr_nofail(fd);
5125 close_nointr_nofail(fd);
5129 static int reload_with_fallback(DBusConnection *bus) {
5132 /* First, try systemd via D-Bus. */
5133 if (daemon_reload(bus, NULL) >= 0)
5137 /* Nothing else worked, so let's try signals */
5138 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5140 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5141 log_error("kill() failed: %m");
5148 static int start_with_fallback(DBusConnection *bus) {
5151 /* First, try systemd via D-Bus. */
5152 if (start_unit(bus, NULL) >= 0)
5156 /* Hmm, talking to systemd via D-Bus didn't work. Then
5157 * let's try to talk to Upstart via D-Bus. */
5158 if (talk_upstart() > 0)
5161 /* Nothing else worked, so let's try
5163 if (talk_initctl() > 0)
5166 log_error("Failed to talk to init daemon.");
5170 warn_wall(arg_action);
5174 static int halt_main(DBusConnection *bus) {
5177 if (geteuid() != 0) {
5178 log_error("Must be root.");
5184 char date[FORMAT_TIMESTAMP_MAX];
5186 m = strv_join(arg_wall, " ");
5187 r = send_shutdownd(arg_when,
5188 arg_action == ACTION_HALT ? 'H' :
5189 arg_action == ACTION_POWEROFF ? 'P' :
5197 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5199 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5200 format_timestamp(date, sizeof(date), arg_when));
5205 if (!arg_dry && !arg_immediate)
5206 return start_with_fallback(bus);
5209 if (sd_booted() > 0)
5210 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5211 else if ((r = utmp_put_shutdown()) < 0)
5212 log_warning("Failed to write utmp record: %s", strerror(-r));
5221 /* Make sure C-A-D is handled by the kernel from this
5223 reboot(RB_ENABLE_CAD);
5225 switch (arg_action) {
5228 log_info("Halting.");
5229 reboot(RB_HALT_SYSTEM);
5232 case ACTION_POWEROFF:
5233 log_info("Powering off.");
5234 reboot(RB_POWER_OFF);
5238 log_info("Rebooting.");
5239 reboot(RB_AUTOBOOT);
5243 assert_not_reached("Unknown halt action.");
5246 /* We should never reach this. */
5250 static int runlevel_main(void) {
5251 int r, runlevel, previous;
5253 r = utmp_get_runlevel(&runlevel, &previous);
5260 previous <= 0 ? 'N' : previous,
5261 runlevel <= 0 ? 'N' : runlevel);
5266 int main(int argc, char*argv[]) {
5267 int r, retval = EXIT_FAILURE;
5268 DBusConnection *bus = NULL;
5271 dbus_error_init(&error);
5273 log_parse_environment();
5276 if ((r = parse_argv(argc, argv)) < 0)
5279 retval = EXIT_SUCCESS;
5283 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5284 * let's shortcut this */
5285 if (arg_action == ACTION_RUNLEVEL) {
5286 r = runlevel_main();
5287 retval = r < 0 ? EXIT_FAILURE : r;
5291 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5292 log_info("Running in chroot, ignoring request.");
5298 if (arg_transport == TRANSPORT_NORMAL)
5299 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5300 else if (arg_transport == TRANSPORT_POLKIT) {
5301 bus_connect_system_polkit(&bus, &error);
5302 private_bus = false;
5303 } else if (arg_transport == TRANSPORT_SSH) {
5304 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5305 private_bus = false;
5307 assert_not_reached("Uh, invalid transport...");
5310 switch (arg_action) {
5312 case ACTION_SYSTEMCTL:
5313 r = systemctl_main(bus, argc, argv, &error);
5317 case ACTION_POWEROFF:
5323 case ACTION_RUNLEVEL2:
5324 case ACTION_RUNLEVEL3:
5325 case ACTION_RUNLEVEL4:
5326 case ACTION_RUNLEVEL5:
5328 case ACTION_EMERGENCY:
5329 case ACTION_DEFAULT:
5330 r = start_with_fallback(bus);
5335 r = reload_with_fallback(bus);
5338 case ACTION_CANCEL_SHUTDOWN:
5339 r = send_shutdownd(0, 0, false, false, NULL);
5342 case ACTION_INVALID:
5343 case ACTION_RUNLEVEL:
5345 assert_not_reached("Unknown action");
5348 retval = r < 0 ? EXIT_FAILURE : r;
5352 dbus_connection_flush(bus);
5353 dbus_connection_close(bus);
5354 dbus_connection_unref(bus);
5357 dbus_error_free(&error);
5361 strv_free(arg_property);