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 logs for details.");
1441 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1442 log_error("Job failed. See system logs 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;
2007 usec_t inactive_exit_timestamp;
2008 usec_t inactive_exit_timestamp_monotonic;
2009 usec_t active_enter_timestamp;
2010 usec_t active_exit_timestamp;
2011 usec_t inactive_enter_timestamp;
2013 bool need_daemon_reload;
2018 const char *status_text;
2020 #ifdef HAVE_SYSV_COMPAT
2024 usec_t start_timestamp;
2025 usec_t exit_timestamp;
2027 int exit_code, exit_status;
2029 usec_t condition_timestamp;
2030 bool condition_result;
2033 unsigned n_accepted;
2034 unsigned n_connections;
2038 const char *sysfs_path;
2040 /* Mount, Automount */
2046 LIST_HEAD(ExecStatusInfo, exec);
2049 static void print_status_info(UnitStatusInfo *i) {
2051 const char *on, *off, *ss;
2053 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2054 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2058 /* This shows pretty information about a unit. See
2059 * print_property() for a low-level property printer */
2061 printf("%s", strna(i->id));
2063 if (i->description && !streq_ptr(i->id, i->description))
2064 printf(" - %s", i->description);
2069 printf("\t Follow: unit currently follows state of %s\n", i->following);
2071 if (streq_ptr(i->load_state, "error")) {
2072 on = ansi_highlight_red(true);
2073 off = ansi_highlight_red(false);
2078 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2079 else if (i->path && i->unit_file_state)
2080 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, i->path, i->unit_file_state);
2082 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
2084 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2086 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2088 if (streq_ptr(i->active_state, "failed")) {
2089 on = ansi_highlight_red(true);
2090 off = ansi_highlight_red(false);
2091 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2092 on = ansi_highlight_green(true);
2093 off = ansi_highlight_green(false);
2098 printf("\t Active: %s%s (%s)%s",
2100 strna(i->active_state),
2104 printf("\t Active: %s%s%s",
2106 strna(i->active_state),
2109 timestamp = (streq_ptr(i->active_state, "active") ||
2110 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2111 (streq_ptr(i->active_state, "inactive") ||
2112 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2113 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2114 i->active_exit_timestamp;
2116 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2117 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2120 printf(" since %s; %s\n", s2, s1);
2122 printf(" since %s\n", s2);
2126 if (!i->condition_result && i->condition_timestamp > 0) {
2127 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2128 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2131 printf("\t start condition failed at %s; %s\n", s2, s1);
2133 printf("\t start condition failed at %s\n", s2);
2137 printf("\t Device: %s\n", i->sysfs_path);
2139 printf("\t Where: %s\n", i->where);
2141 printf("\t What: %s\n", i->what);
2144 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2146 LIST_FOREACH(exec, p, i->exec) {
2150 /* Only show exited processes here */
2154 t = strv_join(p->argv, " ");
2155 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2158 #ifdef HAVE_SYSV_COMPAT
2160 good = is_clean_exit_lsb(p->code, p->status);
2163 good = is_clean_exit(p->code, p->status);
2166 on = ansi_highlight_red(true);
2167 off = ansi_highlight_red(false);
2171 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2173 if (p->code == CLD_EXITED) {
2176 printf("status=%i", p->status);
2178 #ifdef HAVE_SYSV_COMPAT
2179 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
2181 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
2186 printf("signal=%s", signal_to_string(p->status));
2188 printf(")%s\n", off);
2190 if (i->main_pid == p->pid &&
2191 i->start_timestamp == p->start_timestamp &&
2192 i->exit_timestamp == p->start_timestamp)
2193 /* Let's not show this twice */
2196 if (p->pid == i->control_pid)
2200 if (i->main_pid > 0 || i->control_pid > 0) {
2203 if (i->main_pid > 0) {
2204 printf("Main PID: %u", (unsigned) i->main_pid);
2208 get_process_comm(i->main_pid, &t);
2213 } else if (i->exit_code > 0) {
2214 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2216 if (i->exit_code == CLD_EXITED) {
2219 printf("status=%i", i->exit_status);
2221 #ifdef HAVE_SYSV_COMPAT
2222 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
2224 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
2229 printf("signal=%s", signal_to_string(i->exit_status));
2234 if (i->main_pid > 0 && i->control_pid > 0)
2237 if (i->control_pid > 0) {
2240 printf(" Control: %u", (unsigned) i->control_pid);
2242 get_process_comm(i->control_pid, &t);
2253 printf("\t Status: \"%s\"\n", i->status_text);
2255 if (i->default_control_group) {
2258 printf("\t CGroup: %s\n", i->default_control_group);
2260 if (arg_transport != TRANSPORT_SSH) {
2261 if ((c = columns()) > 18)
2266 show_cgroup_by_path(i->default_control_group, "\t\t ", c, false);
2270 if (i->id && arg_transport != TRANSPORT_SSH) {
2272 show_journal_by_unit(i->id, arg_output, NULL, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow);
2275 if (i->need_daemon_reload)
2276 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2277 ansi_highlight_red(true),
2278 ansi_highlight_red(false),
2279 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2282 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2288 switch (dbus_message_iter_get_arg_type(iter)) {
2290 case DBUS_TYPE_STRING: {
2293 dbus_message_iter_get_basic(iter, &s);
2296 if (streq(name, "Id"))
2298 else if (streq(name, "LoadState"))
2300 else if (streq(name, "ActiveState"))
2301 i->active_state = s;
2302 else if (streq(name, "SubState"))
2304 else if (streq(name, "Description"))
2306 else if (streq(name, "FragmentPath"))
2308 #ifdef HAVE_SYSV_COMPAT
2309 else if (streq(name, "SysVPath")) {
2314 else if (streq(name, "DefaultControlGroup"))
2315 i->default_control_group = s;
2316 else if (streq(name, "StatusText"))
2318 else if (streq(name, "SysFSPath"))
2320 else if (streq(name, "Where"))
2322 else if (streq(name, "What"))
2324 else if (streq(name, "Following"))
2326 else if (streq(name, "UnitFileState"))
2327 i->unit_file_state = s;
2333 case DBUS_TYPE_BOOLEAN: {
2336 dbus_message_iter_get_basic(iter, &b);
2338 if (streq(name, "Accept"))
2340 else if (streq(name, "NeedDaemonReload"))
2341 i->need_daemon_reload = b;
2342 else if (streq(name, "ConditionResult"))
2343 i->condition_result = b;
2348 case DBUS_TYPE_UINT32: {
2351 dbus_message_iter_get_basic(iter, &u);
2353 if (streq(name, "MainPID")) {
2355 i->main_pid = (pid_t) u;
2358 } else if (streq(name, "ControlPID"))
2359 i->control_pid = (pid_t) u;
2360 else if (streq(name, "ExecMainPID")) {
2362 i->main_pid = (pid_t) u;
2363 } else if (streq(name, "NAccepted"))
2365 else if (streq(name, "NConnections"))
2366 i->n_connections = u;
2371 case DBUS_TYPE_INT32: {
2374 dbus_message_iter_get_basic(iter, &j);
2376 if (streq(name, "ExecMainCode"))
2377 i->exit_code = (int) j;
2378 else if (streq(name, "ExecMainStatus"))
2379 i->exit_status = (int) j;
2384 case DBUS_TYPE_UINT64: {
2387 dbus_message_iter_get_basic(iter, &u);
2389 if (streq(name, "ExecMainStartTimestamp"))
2390 i->start_timestamp = (usec_t) u;
2391 else if (streq(name, "ExecMainExitTimestamp"))
2392 i->exit_timestamp = (usec_t) u;
2393 else if (streq(name, "ActiveEnterTimestamp"))
2394 i->active_enter_timestamp = (usec_t) u;
2395 else if (streq(name, "InactiveEnterTimestamp"))
2396 i->inactive_enter_timestamp = (usec_t) u;
2397 else if (streq(name, "InactiveExitTimestamp"))
2398 i->inactive_exit_timestamp = (usec_t) u;
2399 else if (streq(name, "InactiveExitTimestampMonotonic"))
2400 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2401 else if (streq(name, "ActiveExitTimestamp"))
2402 i->active_exit_timestamp = (usec_t) u;
2403 else if (streq(name, "ConditionTimestamp"))
2404 i->condition_timestamp = (usec_t) u;
2409 case DBUS_TYPE_ARRAY: {
2411 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2412 startswith(name, "Exec")) {
2413 DBusMessageIter sub;
2415 dbus_message_iter_recurse(iter, &sub);
2416 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2417 ExecStatusInfo *info;
2420 if (!(info = new0(ExecStatusInfo, 1)))
2423 if (!(info->name = strdup(name))) {
2428 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2433 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2435 dbus_message_iter_next(&sub);
2442 case DBUS_TYPE_STRUCT: {
2444 if (streq(name, "LoadError")) {
2445 DBusMessageIter sub;
2446 const char *n, *message;
2449 dbus_message_iter_recurse(iter, &sub);
2451 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2455 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2459 if (!isempty(message))
2460 i->load_error = message;
2470 static int print_property(const char *name, DBusMessageIter *iter) {
2474 /* This is a low-level property printer, see
2475 * print_status_info() for the nicer output */
2477 if (arg_property && !strv_find(arg_property, name))
2480 switch (dbus_message_iter_get_arg_type(iter)) {
2482 case DBUS_TYPE_STRUCT: {
2483 DBusMessageIter sub;
2484 dbus_message_iter_recurse(iter, &sub);
2486 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2489 dbus_message_iter_get_basic(&sub, &u);
2492 printf("%s=%u\n", name, (unsigned) u);
2494 printf("%s=\n", name);
2497 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2500 dbus_message_iter_get_basic(&sub, &s);
2502 if (arg_all || s[0])
2503 printf("%s=%s\n", name, s);
2506 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2507 const char *a = NULL, *b = NULL;
2509 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2510 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2512 if (arg_all || !isempty(a) || !isempty(b))
2513 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2521 case DBUS_TYPE_ARRAY:
2523 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2524 DBusMessageIter sub, sub2;
2526 dbus_message_iter_recurse(iter, &sub);
2527 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2531 dbus_message_iter_recurse(&sub, &sub2);
2533 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2534 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2535 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2537 dbus_message_iter_next(&sub);
2542 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2543 DBusMessageIter sub, sub2;
2545 dbus_message_iter_recurse(iter, &sub);
2546 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2547 const char *type, *path;
2549 dbus_message_iter_recurse(&sub, &sub2);
2551 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2552 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2553 printf("%s=%s\n", type, path);
2555 dbus_message_iter_next(&sub);
2560 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2561 DBusMessageIter sub, sub2;
2563 dbus_message_iter_recurse(iter, &sub);
2564 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2566 uint64_t value, next_elapse;
2568 dbus_message_iter_recurse(&sub, &sub2);
2570 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2571 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2572 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2573 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2575 printf("%s={ value=%s ; next_elapse=%s }\n",
2577 format_timespan(timespan1, sizeof(timespan1), value),
2578 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2581 dbus_message_iter_next(&sub);
2586 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2587 DBusMessageIter sub, sub2;
2589 dbus_message_iter_recurse(iter, &sub);
2590 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2591 const char *controller, *attr, *value;
2593 dbus_message_iter_recurse(&sub, &sub2);
2595 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
2596 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
2597 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
2599 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
2605 dbus_message_iter_next(&sub);
2610 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2611 DBusMessageIter sub;
2613 dbus_message_iter_recurse(iter, &sub);
2614 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2615 ExecStatusInfo info;
2618 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2619 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2622 t = strv_join(info.argv, " ");
2624 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2628 yes_no(info.ignore),
2629 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2630 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2631 (unsigned) info. pid,
2632 sigchld_code_to_string(info.code),
2634 info.code == CLD_EXITED ? "" : "/",
2635 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2641 strv_free(info.argv);
2643 dbus_message_iter_next(&sub);
2652 if (generic_print_property(name, iter, arg_all) > 0)
2656 printf("%s=[unprintable]\n", name);
2661 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2662 DBusMessage *m = NULL, *reply = NULL;
2663 const char *interface = "";
2666 DBusMessageIter iter, sub, sub2, sub3;
2667 UnitStatusInfo info;
2675 dbus_error_init(&error);
2677 if (!(m = dbus_message_new_method_call(
2678 "org.freedesktop.systemd1",
2680 "org.freedesktop.DBus.Properties",
2682 log_error("Could not allocate message.");
2687 if (!dbus_message_append_args(m,
2688 DBUS_TYPE_STRING, &interface,
2689 DBUS_TYPE_INVALID)) {
2690 log_error("Could not append arguments to message.");
2695 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2696 log_error("Failed to issue method call: %s", bus_error_message(&error));
2701 if (!dbus_message_iter_init(reply, &iter) ||
2702 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2703 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2704 log_error("Failed to parse reply.");
2709 dbus_message_iter_recurse(&iter, &sub);
2716 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2719 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2720 log_error("Failed to parse reply.");
2725 dbus_message_iter_recurse(&sub, &sub2);
2727 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2728 log_error("Failed to parse reply.");
2733 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2734 log_error("Failed to parse reply.");
2739 dbus_message_iter_recurse(&sub2, &sub3);
2741 if (show_properties)
2742 r = print_property(name, &sub3);
2744 r = status_property(name, &sub3, &info);
2747 log_error("Failed to parse reply.");
2752 dbus_message_iter_next(&sub);
2757 if (!show_properties)
2758 print_status_info(&info);
2760 if (!streq_ptr(info.active_state, "active") &&
2761 !streq_ptr(info.active_state, "reloading") &&
2762 streq(verb, "status"))
2763 /* According to LSB: "program not running" */
2766 while ((p = info.exec)) {
2767 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2768 exec_status_info_free(p);
2773 dbus_message_unref(m);
2776 dbus_message_unref(reply);
2778 dbus_error_free(&error);
2783 static int show(DBusConnection *bus, char **args) {
2784 DBusMessage *m = NULL, *reply = NULL;
2787 bool show_properties, new_line = false;
2793 dbus_error_init(&error);
2795 show_properties = !streq(args[0], "status");
2797 if (show_properties)
2798 pager_open_if_enabled();
2800 if (show_properties && strv_length(args) <= 1) {
2801 /* If not argument is specified inspect the manager
2804 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2808 STRV_FOREACH(name, args+1) {
2809 const char *path = NULL;
2812 if (safe_atou32(*name, &id) < 0) {
2814 /* Interpret as unit name */
2816 if (!(m = dbus_message_new_method_call(
2817 "org.freedesktop.systemd1",
2818 "/org/freedesktop/systemd1",
2819 "org.freedesktop.systemd1.Manager",
2821 log_error("Could not allocate message.");
2826 if (!dbus_message_append_args(m,
2827 DBUS_TYPE_STRING, name,
2828 DBUS_TYPE_INVALID)) {
2829 log_error("Could not append arguments to message.");
2834 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2836 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2837 log_error("Failed to issue method call: %s", bus_error_message(&error));
2842 dbus_error_free(&error);
2844 dbus_message_unref(m);
2845 if (!(m = dbus_message_new_method_call(
2846 "org.freedesktop.systemd1",
2847 "/org/freedesktop/systemd1",
2848 "org.freedesktop.systemd1.Manager",
2850 log_error("Could not allocate message.");
2855 if (!dbus_message_append_args(m,
2856 DBUS_TYPE_STRING, name,
2857 DBUS_TYPE_INVALID)) {
2858 log_error("Could not append arguments to message.");
2863 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2864 log_error("Failed to issue method call: %s", bus_error_message(&error));
2866 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2867 ret = 4; /* According to LSB: "program or service status is unknown" */
2874 } else if (show_properties) {
2876 /* Interpret as job id */
2878 if (!(m = dbus_message_new_method_call(
2879 "org.freedesktop.systemd1",
2880 "/org/freedesktop/systemd1",
2881 "org.freedesktop.systemd1.Manager",
2883 log_error("Could not allocate message.");
2888 if (!dbus_message_append_args(m,
2889 DBUS_TYPE_UINT32, &id,
2890 DBUS_TYPE_INVALID)) {
2891 log_error("Could not append arguments to message.");
2896 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2897 log_error("Failed to issue method call: %s", bus_error_message(&error));
2903 /* Interpret as PID */
2905 if (!(m = dbus_message_new_method_call(
2906 "org.freedesktop.systemd1",
2907 "/org/freedesktop/systemd1",
2908 "org.freedesktop.systemd1.Manager",
2910 log_error("Could not allocate message.");
2915 if (!dbus_message_append_args(m,
2916 DBUS_TYPE_UINT32, &id,
2917 DBUS_TYPE_INVALID)) {
2918 log_error("Could not append arguments to message.");
2923 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2924 log_error("Failed to issue method call: %s", bus_error_message(&error));
2930 if (!dbus_message_get_args(reply, &error,
2931 DBUS_TYPE_OBJECT_PATH, &path,
2932 DBUS_TYPE_INVALID)) {
2933 log_error("Failed to parse reply: %s", bus_error_message(&error));
2938 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
2941 dbus_message_unref(m);
2942 dbus_message_unref(reply);
2948 dbus_message_unref(m);
2951 dbus_message_unref(reply);
2953 dbus_error_free(&error);
2958 static int dump(DBusConnection *bus, char **args) {
2959 DBusMessage *m = NULL, *reply = NULL;
2964 dbus_error_init(&error);
2966 pager_open_if_enabled();
2968 if (!(m = dbus_message_new_method_call(
2969 "org.freedesktop.systemd1",
2970 "/org/freedesktop/systemd1",
2971 "org.freedesktop.systemd1.Manager",
2973 log_error("Could not allocate message.");
2977 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2978 log_error("Failed to issue method call: %s", bus_error_message(&error));
2983 if (!dbus_message_get_args(reply, &error,
2984 DBUS_TYPE_STRING, &text,
2985 DBUS_TYPE_INVALID)) {
2986 log_error("Failed to parse reply: %s", bus_error_message(&error));
2991 fputs(text, stdout);
2997 dbus_message_unref(m);
3000 dbus_message_unref(reply);
3002 dbus_error_free(&error);
3007 static int snapshot(DBusConnection *bus, char **args) {
3008 DBusMessage *m = NULL, *reply = NULL;
3011 const char *name = "", *path, *id;
3012 dbus_bool_t cleanup = FALSE;
3013 DBusMessageIter iter, sub;
3015 *interface = "org.freedesktop.systemd1.Unit",
3018 dbus_error_init(&error);
3020 if (!(m = dbus_message_new_method_call(
3021 "org.freedesktop.systemd1",
3022 "/org/freedesktop/systemd1",
3023 "org.freedesktop.systemd1.Manager",
3024 "CreateSnapshot"))) {
3025 log_error("Could not allocate message.");
3029 if (strv_length(args) > 1)
3032 if (!dbus_message_append_args(m,
3033 DBUS_TYPE_STRING, &name,
3034 DBUS_TYPE_BOOLEAN, &cleanup,
3035 DBUS_TYPE_INVALID)) {
3036 log_error("Could not append arguments to message.");
3041 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3042 log_error("Failed to issue method call: %s", bus_error_message(&error));
3047 if (!dbus_message_get_args(reply, &error,
3048 DBUS_TYPE_OBJECT_PATH, &path,
3049 DBUS_TYPE_INVALID)) {
3050 log_error("Failed to parse reply: %s", bus_error_message(&error));
3055 dbus_message_unref(m);
3056 if (!(m = dbus_message_new_method_call(
3057 "org.freedesktop.systemd1",
3059 "org.freedesktop.DBus.Properties",
3061 log_error("Could not allocate message.");
3065 if (!dbus_message_append_args(m,
3066 DBUS_TYPE_STRING, &interface,
3067 DBUS_TYPE_STRING, &property,
3068 DBUS_TYPE_INVALID)) {
3069 log_error("Could not append arguments to message.");
3074 dbus_message_unref(reply);
3075 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3076 log_error("Failed to issue method call: %s", bus_error_message(&error));
3081 if (!dbus_message_iter_init(reply, &iter) ||
3082 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3083 log_error("Failed to parse reply.");
3088 dbus_message_iter_recurse(&iter, &sub);
3090 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3091 log_error("Failed to parse reply.");
3096 dbus_message_iter_get_basic(&sub, &id);
3104 dbus_message_unref(m);
3107 dbus_message_unref(reply);
3109 dbus_error_free(&error);
3114 static int delete_snapshot(DBusConnection *bus, char **args) {
3115 DBusMessage *m = NULL, *reply = NULL;
3123 dbus_error_init(&error);
3125 STRV_FOREACH(name, args+1) {
3126 const char *path = NULL;
3128 if (!(m = dbus_message_new_method_call(
3129 "org.freedesktop.systemd1",
3130 "/org/freedesktop/systemd1",
3131 "org.freedesktop.systemd1.Manager",
3133 log_error("Could not allocate message.");
3138 if (!dbus_message_append_args(m,
3139 DBUS_TYPE_STRING, name,
3140 DBUS_TYPE_INVALID)) {
3141 log_error("Could not append arguments to message.");
3146 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3147 log_error("Failed to issue method call: %s", bus_error_message(&error));
3152 if (!dbus_message_get_args(reply, &error,
3153 DBUS_TYPE_OBJECT_PATH, &path,
3154 DBUS_TYPE_INVALID)) {
3155 log_error("Failed to parse reply: %s", bus_error_message(&error));
3160 dbus_message_unref(m);
3161 if (!(m = dbus_message_new_method_call(
3162 "org.freedesktop.systemd1",
3164 "org.freedesktop.systemd1.Snapshot",
3166 log_error("Could not allocate message.");
3171 dbus_message_unref(reply);
3172 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3173 log_error("Failed to issue method call: %s", bus_error_message(&error));
3178 dbus_message_unref(m);
3179 dbus_message_unref(reply);
3187 dbus_message_unref(m);
3190 dbus_message_unref(reply);
3192 dbus_error_free(&error);
3197 static int daemon_reload(DBusConnection *bus, char **args) {
3198 DBusMessage *m = NULL, *reply = NULL;
3203 dbus_error_init(&error);
3205 if (arg_action == ACTION_RELOAD)
3207 else if (arg_action == ACTION_REEXEC)
3208 method = "Reexecute";
3210 assert(arg_action == ACTION_SYSTEMCTL);
3213 streq(args[0], "clear-jobs") ||
3214 streq(args[0], "cancel") ? "ClearJobs" :
3215 streq(args[0], "daemon-reexec") ? "Reexecute" :
3216 streq(args[0], "reset-failed") ? "ResetFailed" :
3217 streq(args[0], "halt") ? "Halt" :
3218 streq(args[0], "poweroff") ? "PowerOff" :
3219 streq(args[0], "reboot") ? "Reboot" :
3220 streq(args[0], "kexec") ? "KExec" :
3221 streq(args[0], "exit") ? "Exit" :
3222 /* "daemon-reload" */ "Reload";
3225 if (!(m = dbus_message_new_method_call(
3226 "org.freedesktop.systemd1",
3227 "/org/freedesktop/systemd1",
3228 "org.freedesktop.systemd1.Manager",
3230 log_error("Could not allocate message.");
3234 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3236 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3237 /* There's always a fallback possible for
3238 * legacy actions. */
3243 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3244 /* On reexecution, we expect a disconnect, not
3250 log_error("Failed to issue method call: %s", bus_error_message(&error));
3259 dbus_message_unref(m);
3262 dbus_message_unref(reply);
3264 dbus_error_free(&error);
3269 static int reset_failed(DBusConnection *bus, char **args) {
3270 DBusMessage *m = NULL;
3276 dbus_error_init(&error);
3278 if (strv_length(args) <= 1)
3279 return daemon_reload(bus, args);
3281 STRV_FOREACH(name, args+1) {
3284 if (!(m = dbus_message_new_method_call(
3285 "org.freedesktop.systemd1",
3286 "/org/freedesktop/systemd1",
3287 "org.freedesktop.systemd1.Manager",
3288 "ResetFailedUnit"))) {
3289 log_error("Could not allocate message.");
3294 if (!dbus_message_append_args(m,
3295 DBUS_TYPE_STRING, name,
3296 DBUS_TYPE_INVALID)) {
3297 log_error("Could not append arguments to message.");
3302 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3303 log_error("Failed to issue method call: %s", bus_error_message(&error));
3308 dbus_message_unref(m);
3309 dbus_message_unref(reply);
3317 dbus_message_unref(m);
3319 dbus_error_free(&error);
3324 static int show_enviroment(DBusConnection *bus, char **args) {
3325 DBusMessage *m = NULL, *reply = NULL;
3327 DBusMessageIter iter, sub, sub2;
3330 *interface = "org.freedesktop.systemd1.Manager",
3331 *property = "Environment";
3333 dbus_error_init(&error);
3335 pager_open_if_enabled();
3337 if (!(m = dbus_message_new_method_call(
3338 "org.freedesktop.systemd1",
3339 "/org/freedesktop/systemd1",
3340 "org.freedesktop.DBus.Properties",
3342 log_error("Could not allocate message.");
3346 if (!dbus_message_append_args(m,
3347 DBUS_TYPE_STRING, &interface,
3348 DBUS_TYPE_STRING, &property,
3349 DBUS_TYPE_INVALID)) {
3350 log_error("Could not append arguments to message.");
3355 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3356 log_error("Failed to issue method call: %s", bus_error_message(&error));
3361 if (!dbus_message_iter_init(reply, &iter) ||
3362 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3363 log_error("Failed to parse reply.");
3368 dbus_message_iter_recurse(&iter, &sub);
3370 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3371 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3372 log_error("Failed to parse reply.");
3377 dbus_message_iter_recurse(&sub, &sub2);
3379 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3382 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3383 log_error("Failed to parse reply.");
3388 dbus_message_iter_get_basic(&sub2, &text);
3389 printf("%s\n", text);
3391 dbus_message_iter_next(&sub2);
3398 dbus_message_unref(m);
3401 dbus_message_unref(reply);
3403 dbus_error_free(&error);
3408 static int set_environment(DBusConnection *bus, char **args) {
3409 DBusMessage *m = NULL, *reply = NULL;
3413 DBusMessageIter iter, sub;
3416 dbus_error_init(&error);
3418 method = streq(args[0], "set-environment")
3420 : "UnsetEnvironment";
3422 if (!(m = dbus_message_new_method_call(
3423 "org.freedesktop.systemd1",
3424 "/org/freedesktop/systemd1",
3425 "org.freedesktop.systemd1.Manager",
3428 log_error("Could not allocate message.");
3432 dbus_message_iter_init_append(m, &iter);
3434 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3435 log_error("Could not append arguments to message.");
3440 STRV_FOREACH(name, args+1)
3441 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3442 log_error("Could not append arguments to message.");
3447 if (!dbus_message_iter_close_container(&iter, &sub)) {
3448 log_error("Could not append arguments to message.");
3453 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3454 log_error("Failed to issue method call: %s", bus_error_message(&error));
3463 dbus_message_unref(m);
3466 dbus_message_unref(reply);
3468 dbus_error_free(&error);
3473 static int enable_sysv_units(char **args) {
3476 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3477 const char *verb = args[0];
3478 unsigned f = 1, t = 1;
3481 if (arg_scope != UNIT_FILE_SYSTEM)
3484 if (!streq(verb, "enable") &&
3485 !streq(verb, "disable") &&
3486 !streq(verb, "is-enabled"))
3489 /* Processes all SysV units, and reshuffles the array so that
3490 * afterwards only the native units remain */
3493 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false);
3499 for (f = 1; args[f]; f++) {
3502 bool found_native = false, found_sysv;
3504 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3505 char **k, *l, *q = NULL;
3512 if (!endswith(name, ".service"))
3515 if (path_is_absolute(name))
3518 STRV_FOREACH(k, paths.unit_path) {
3521 if (!isempty(arg_root))
3522 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3524 asprintf(&p, "%s/%s", *k, name);
3527 log_error("No memory");
3532 found_native = access(p, F_OK) >= 0;
3543 if (!isempty(arg_root))
3544 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3546 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3548 log_error("No memory");
3553 p[strlen(p) - sizeof(".service") + 1] = 0;
3554 found_sysv = access(p, F_OK) >= 0;
3561 /* Mark this entry, so that we don't try enabling it as native unit */
3562 args[f] = (char*) "";
3564 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3566 if (!isempty(arg_root))
3567 argv[c++] = q = strappend("--root=", arg_root);
3569 argv[c++] = file_name_from_path(p);
3571 streq(verb, "enable") ? "on" :
3572 streq(verb, "disable") ? "off" : "--level=5";
3575 l = strv_join((char**)argv, " ");
3577 log_error("No memory.");
3584 log_info("Executing %s", l);
3589 log_error("Failed to fork: %m");
3594 } else if (pid == 0) {
3597 execv(argv[0], (char**) argv);
3598 _exit(EXIT_FAILURE);
3604 j = wait_for_terminate(pid, &status);
3606 log_error("Failed to wait for child: %s", strerror(-r));
3611 if (status.si_code == CLD_EXITED) {
3612 if (streq(verb, "is-enabled")) {
3613 if (status.si_status == 0) {
3622 } else if (status.si_status != 0) {
3633 lookup_paths_free(&paths);
3635 /* Drop all SysV units */
3636 for (f = 1, t = 1; args[f]; f++) {
3638 if (isempty(args[f]))
3641 args[t++] = args[f];
3650 static int enable_unit(DBusConnection *bus, char **args) {
3651 const char *verb = args[0];
3652 UnitFileChange *changes = NULL;
3653 unsigned n_changes = 0, i;
3654 int carries_install_info = -1;
3655 DBusMessage *m = NULL, *reply = NULL;
3659 dbus_error_init(&error);
3661 r = enable_sysv_units(args);
3665 if (!bus || avoid_bus()) {
3666 if (streq(verb, "enable")) {
3667 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3668 carries_install_info = r;
3669 } else if (streq(verb, "disable"))
3670 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3671 else if (streq(verb, "reenable")) {
3672 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3673 carries_install_info = r;
3674 } else if (streq(verb, "link"))
3675 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3676 else if (streq(verb, "preset")) {
3677 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3678 carries_install_info = r;
3679 } else if (streq(verb, "mask"))
3680 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3681 else if (streq(verb, "unmask"))
3682 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3684 assert_not_reached("Unknown verb");
3687 log_error("Operation failed: %s", strerror(-r));
3692 for (i = 0; i < n_changes; i++) {
3693 if (changes[i].type == UNIT_FILE_SYMLINK)
3694 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
3696 log_info("rm '%s'", changes[i].path);
3702 bool send_force = true, expect_carries_install_info = false;
3704 DBusMessageIter iter, sub, sub2;
3706 if (streq(verb, "enable")) {
3707 method = "EnableUnitFiles";
3708 expect_carries_install_info = true;
3709 } else if (streq(verb, "disable")) {
3710 method = "DisableUnitFiles";
3712 } else if (streq(verb, "reenable")) {
3713 method = "ReenableUnitFiles";
3714 expect_carries_install_info = true;
3715 } else if (streq(verb, "link"))
3716 method = "LinkUnitFiles";
3717 else if (streq(verb, "preset")) {
3718 method = "PresetUnitFiles";
3719 expect_carries_install_info = true;
3720 } else if (streq(verb, "mask"))
3721 method = "MaskUnitFiles";
3722 else if (streq(verb, "unmask")) {
3723 method = "UnmaskUnitFiles";
3726 assert_not_reached("Unknown verb");
3728 m = dbus_message_new_method_call(
3729 "org.freedesktop.systemd1",
3730 "/org/freedesktop/systemd1",
3731 "org.freedesktop.systemd1.Manager",
3734 log_error("Out of memory");
3739 dbus_message_iter_init_append(m, &iter);
3741 r = bus_append_strv_iter(&iter, args+1);
3743 log_error("Failed to append unit files.");
3748 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
3749 log_error("Failed to append runtime boolean.");
3757 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
3758 log_error("Failed to append force boolean.");
3764 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3766 log_error("Failed to issue method call: %s", bus_error_message(&error));
3771 if (!dbus_message_iter_init(reply, &iter)) {
3772 log_error("Failed to initialize iterator.");
3776 if (expect_carries_install_info) {
3777 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
3779 log_error("Failed to parse reply.");
3783 carries_install_info = b;
3786 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3787 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
3788 log_error("Failed to parse reply.");
3793 dbus_message_iter_recurse(&iter, &sub);
3794 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3795 const char *type, *path, *source;
3797 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
3798 log_error("Failed to parse reply.");
3803 dbus_message_iter_recurse(&sub, &sub2);
3805 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
3806 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
3807 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
3808 log_error("Failed to parse reply.");
3814 if (streq(type, "symlink"))
3815 log_info("ln -s '%s' '%s'", source, path);
3817 log_info("rm '%s'", path);
3820 dbus_message_iter_next(&sub);
3823 /* Try to reload if enabeld */
3825 r = daemon_reload(bus, args);
3828 if (carries_install_info == 0)
3829 log_warning("Warning: unit files do not carry install information. No operation executed.");
3833 dbus_message_unref(m);
3836 dbus_message_unref(reply);
3838 unit_file_changes_free(changes, n_changes);
3840 dbus_error_free(&error);
3844 static int unit_is_enabled(DBusConnection *bus, char **args) {
3847 DBusMessage *m = NULL, *reply = NULL;
3851 dbus_error_init(&error);
3853 r = enable_sysv_units(args);
3859 if (!bus || avoid_bus()) {
3861 STRV_FOREACH(name, args+1) {
3862 UnitFileState state;
3864 state = unit_file_get_state(arg_scope, arg_root, *name);
3870 if (state == UNIT_FILE_ENABLED ||
3871 state == UNIT_FILE_ENABLED_RUNTIME ||
3872 state == UNIT_FILE_STATIC)
3876 puts(unit_file_state_to_string(state));
3880 STRV_FOREACH(name, args+1) {
3883 m = dbus_message_new_method_call(
3884 "org.freedesktop.systemd1",
3885 "/org/freedesktop/systemd1",
3886 "org.freedesktop.systemd1.Manager",
3887 "GetUnitFileState");
3889 log_error("Out of memory");
3894 if (!dbus_message_append_args(m,
3895 DBUS_TYPE_STRING, name,
3896 DBUS_TYPE_INVALID)) {
3897 log_error("Could not append arguments to message.");
3902 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3904 log_error("Failed to issue method call: %s", bus_error_message(&error));
3909 if (!dbus_message_get_args(reply, &error,
3910 DBUS_TYPE_STRING, &s,
3911 DBUS_TYPE_INVALID)) {
3912 log_error("Failed to parse reply: %s", bus_error_message(&error));
3917 dbus_message_unref(m);
3918 dbus_message_unref(reply);
3921 if (streq(s, "enabled") ||
3922 streq(s, "enabled-runtime") ||
3931 r = enabled ? 0 : 1;
3935 dbus_message_unref(m);
3938 dbus_message_unref(reply);
3940 dbus_error_free(&error);
3944 static int systemctl_help(void) {
3946 pager_open_if_enabled();
3948 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
3949 "Query or send control commands to the systemd manager.\n\n"
3950 " -h --help Show this help\n"
3951 " --version Show package version\n"
3952 " -t --type=TYPE List only units of a particular type\n"
3953 " -p --property=NAME Show only properties by this name\n"
3954 " -a --all Show all units/properties, including dead/empty ones\n"
3955 " --failed Show only failed units\n"
3956 " --full Don't ellipsize unit names on output\n"
3957 " --fail When queueing a new job, fail if conflicting jobs are\n"
3959 " --ignore-dependencies\n"
3960 " When queueing a new job, ignore all its dependencies\n"
3961 " --kill-who=WHO Who to send signal to\n"
3962 " -s --signal=SIGNAL Which signal to send\n"
3963 " -H --host=[USER@]HOST\n"
3964 " Show information for remote host\n"
3965 " -P --privileged Acquire privileges before execution\n"
3966 " -q --quiet Suppress output\n"
3967 " --no-block Do not wait until operation finished\n"
3968 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3969 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3971 " --no-legend Do not print a legend (column headers and hints)\n"
3972 " --no-pager Do not pipe output into a pager\n"
3973 " --no-ask-password\n"
3974 " Do not ask for system passwords\n"
3975 " --order When generating graph for dot, show only order\n"
3976 " --require When generating graph for dot, show only requirement\n"
3977 " --system Connect to system manager\n"
3978 " --user Connect to user service manager\n"
3979 " --global Enable/disable unit files globally\n"
3980 " -f --force When enabling unit files, override existing symlinks\n"
3981 " When shutting down, execute action immediately\n"
3982 " --root=PATH Enable unit files in the specified root directory\n"
3983 " --runtime Enable unit files only temporarily until next reboot\n"
3984 " -n --lines=INTEGER Journal entries to show\n"
3985 " --follow Follow journal\n"
3986 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
3987 " verbose, export, json, cat)\n\n"
3989 " list-units List loaded units\n"
3990 " start [NAME...] Start (activate) one or more units\n"
3991 " stop [NAME...] Stop (deactivate) one or more units\n"
3992 " reload [NAME...] Reload one or more units\n"
3993 " restart [NAME...] Start or restart one or more units\n"
3994 " try-restart [NAME...] Restart one or more units if active\n"
3995 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3996 " otherwise start or restart\n"
3997 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3998 " otherwise restart if active\n"
3999 " isolate [NAME] Start one unit and stop all others\n"
4000 " kill [NAME...] Send signal to processes of a unit\n"
4001 " is-active [NAME...] Check whether units are active\n"
4002 " status [NAME...|PID...] Show runtime status of one or more units\n"
4003 " show [NAME...|JOB...] Show properties of one or more\n"
4004 " units/jobs or the manager\n"
4005 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4007 " load [NAME...] Load one or more units\n\n"
4008 "Unit File Commands:\n"
4009 " list-unit-files List installed unit files\n"
4010 " enable [NAME...] Enable one or more unit files\n"
4011 " disable [NAME...] Disable one or more unit files\n"
4012 " reenable [NAME...] Reenable one or more unit files\n"
4013 " preset [NAME...] Enable/disable one or more unit files\n"
4014 " based on preset configuration\n"
4015 " mask [NAME...] Mask one or more units\n"
4016 " unmask [NAME...] Unmask one or more units\n"
4017 " link [PATH...] Link one or more units files into\n"
4018 " the search path\n"
4019 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4021 " list-jobs List jobs\n"
4022 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4023 "Status Commands:\n"
4024 " dump Dump server status\n"
4025 " dot Dump dependency graph for dot(1)\n\n"
4026 "Snapshot Commands:\n"
4027 " snapshot [NAME] Create a snapshot\n"
4028 " delete [NAME...] Remove one or more snapshots\n\n"
4029 "Environment Commands:\n"
4030 " show-environment Dump environment\n"
4031 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4032 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4033 "Manager Lifecycle Commands:\n"
4034 " daemon-reload Reload systemd manager configuration\n"
4035 " daemon-reexec Reexecute systemd manager\n\n"
4036 "System Commands:\n"
4037 " default Enter system default mode\n"
4038 " rescue Enter system rescue mode\n"
4039 " emergency Enter system emergency mode\n"
4040 " halt Shut down and halt the system\n"
4041 " poweroff Shut down and power-off the system\n"
4042 " reboot Shut down and reboot the system\n"
4043 " kexec Shut down and reboot the system with kexec\n"
4044 " exit Ask for user instance termination\n",
4045 program_invocation_short_name);
4050 static int halt_help(void) {
4052 printf("%s [OPTIONS...]\n\n"
4053 "%s the system.\n\n"
4054 " --help Show this help\n"
4055 " --halt Halt the machine\n"
4056 " -p --poweroff Switch off the machine\n"
4057 " --reboot Reboot the machine\n"
4058 " -f --force Force immediate halt/power-off/reboot\n"
4059 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4060 " -d --no-wtmp Don't write wtmp record\n"
4061 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4062 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4063 program_invocation_short_name,
4064 arg_action == ACTION_REBOOT ? "Reboot" :
4065 arg_action == ACTION_POWEROFF ? "Power off" :
4071 static int shutdown_help(void) {
4073 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4074 "Shut down the system.\n\n"
4075 " --help Show this help\n"
4076 " -H --halt Halt the machine\n"
4077 " -P --poweroff Power-off the machine\n"
4078 " -r --reboot Reboot the machine\n"
4079 " -h Equivalent to --poweroff, overriden by --halt\n"
4080 " -k Don't halt/power-off/reboot, just send warnings\n"
4081 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4082 " -c Cancel a pending shutdown\n",
4083 program_invocation_short_name);
4088 static int telinit_help(void) {
4090 printf("%s [OPTIONS...] {COMMAND}\n\n"
4091 "Send control commands to the init daemon.\n\n"
4092 " --help Show this help\n"
4093 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4095 " 0 Power-off the machine\n"
4096 " 6 Reboot the machine\n"
4097 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4098 " 1, s, S Enter rescue mode\n"
4099 " q, Q Reload init daemon configuration\n"
4100 " u, U Reexecute init daemon\n",
4101 program_invocation_short_name);
4106 static int runlevel_help(void) {
4108 printf("%s [OPTIONS...]\n\n"
4109 "Prints the previous and current runlevel of the init system.\n\n"
4110 " --help Show this help\n",
4111 program_invocation_short_name);
4116 static int systemctl_parse_argv(int argc, char *argv[]) {
4120 ARG_IGNORE_DEPENDENCIES,
4136 ARG_NO_ASK_PASSWORD,
4142 static const struct option options[] = {
4143 { "help", no_argument, NULL, 'h' },
4144 { "version", no_argument, NULL, ARG_VERSION },
4145 { "type", required_argument, NULL, 't' },
4146 { "property", required_argument, NULL, 'p' },
4147 { "all", no_argument, NULL, 'a' },
4148 { "failed", no_argument, NULL, ARG_FAILED },
4149 { "full", no_argument, NULL, ARG_FULL },
4150 { "fail", no_argument, NULL, ARG_FAIL },
4151 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4152 { "user", no_argument, NULL, ARG_USER },
4153 { "system", no_argument, NULL, ARG_SYSTEM },
4154 { "global", no_argument, NULL, ARG_GLOBAL },
4155 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4156 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4157 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4158 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4159 { "quiet", no_argument, NULL, 'q' },
4160 { "order", no_argument, NULL, ARG_ORDER },
4161 { "require", no_argument, NULL, ARG_REQUIRE },
4162 { "root", required_argument, NULL, ARG_ROOT },
4163 { "force", no_argument, NULL, 'f' },
4164 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4165 { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */
4166 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4167 { "signal", required_argument, NULL, 's' },
4168 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4169 { "host", required_argument, NULL, 'H' },
4170 { "privileged",no_argument, NULL, 'P' },
4171 { "runtime", no_argument, NULL, ARG_RUNTIME },
4172 { "lines", required_argument, NULL, 'n' },
4173 { "follow", no_argument, NULL, ARG_FOLLOW },
4174 { "output", required_argument, NULL, 'o' },
4175 { NULL, 0, NULL, 0 }
4183 /* Only when running as systemctl we ask for passwords */
4184 arg_ask_password = true;
4186 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4195 puts(PACKAGE_STRING);
4197 puts(SYSTEMD_FEATURES);
4207 if (!(l = strv_append(arg_property, optarg)))
4210 strv_free(arg_property);
4213 /* If the user asked for a particular
4214 * property, show it to him, even if it is
4225 arg_job_mode = "fail";
4228 case ARG_IGNORE_DEPENDENCIES:
4229 arg_job_mode = "ignore-dependencies";
4233 arg_scope = UNIT_FILE_USER;
4237 arg_scope = UNIT_FILE_SYSTEM;
4241 arg_scope = UNIT_FILE_GLOBAL;
4245 arg_no_block = true;
4249 arg_no_legend = true;
4253 arg_no_pager = true;
4261 arg_dot = DOT_ORDER;
4265 arg_dot = DOT_REQUIRE;
4289 arg_no_reload = true;
4293 arg_kill_who = optarg;
4297 arg_kill_mode = optarg;
4301 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4302 log_error("Failed to parse signal string %s.", optarg);
4307 case ARG_NO_ASK_PASSWORD:
4308 arg_ask_password = false;
4312 arg_transport = TRANSPORT_POLKIT;
4316 arg_transport = TRANSPORT_SSH;
4325 if (safe_atou(optarg, &arg_lines) < 0) {
4326 log_error("Failed to parse lines '%s'", optarg);
4336 arg_output = output_mode_from_string(optarg);
4337 if (arg_output < 0) {
4338 log_error("Unknown output '%s'.", optarg);
4347 log_error("Unknown option code %c", c);
4352 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4353 log_error("Cannot access user instance remotely.");
4360 static int halt_parse_argv(int argc, char *argv[]) {
4369 static const struct option options[] = {
4370 { "help", no_argument, NULL, ARG_HELP },
4371 { "halt", no_argument, NULL, ARG_HALT },
4372 { "poweroff", no_argument, NULL, 'p' },
4373 { "reboot", no_argument, NULL, ARG_REBOOT },
4374 { "force", no_argument, NULL, 'f' },
4375 { "wtmp-only", no_argument, NULL, 'w' },
4376 { "no-wtmp", no_argument, NULL, 'd' },
4377 { "no-sync", no_argument, NULL, 'n' },
4378 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4379 { NULL, 0, NULL, 0 }
4387 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4388 if (runlevel == '0' || runlevel == '6')
4389 arg_immediate = true;
4391 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4399 arg_action = ACTION_HALT;
4403 if (arg_action != ACTION_REBOOT)
4404 arg_action = ACTION_POWEROFF;
4408 arg_action = ACTION_REBOOT;
4412 arg_immediate = true;
4433 /* Compatibility nops */
4440 log_error("Unknown option code %c", c);
4445 if (optind < argc) {
4446 log_error("Too many arguments.");
4453 static int parse_time_spec(const char *t, usec_t *_u) {
4457 if (streq(t, "now"))
4459 else if (!strchr(t, ':')) {
4462 if (safe_atou64(t, &u) < 0)
4465 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4474 hour = strtol(t, &e, 10);
4475 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4478 minute = strtol(e+1, &e, 10);
4479 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4482 n = now(CLOCK_REALTIME);
4483 s = (time_t) (n / USEC_PER_SEC);
4486 assert_se(localtime_r(&s, &tm));
4488 tm.tm_hour = (int) hour;
4489 tm.tm_min = (int) minute;
4492 assert_se(s = mktime(&tm));
4494 *_u = (usec_t) s * USEC_PER_SEC;
4497 *_u += USEC_PER_DAY;
4503 static int shutdown_parse_argv(int argc, char *argv[]) {
4510 static const struct option options[] = {
4511 { "help", no_argument, NULL, ARG_HELP },
4512 { "halt", no_argument, NULL, 'H' },
4513 { "poweroff", no_argument, NULL, 'P' },
4514 { "reboot", no_argument, NULL, 'r' },
4515 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4516 { NULL, 0, NULL, 0 }
4524 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4532 arg_action = ACTION_HALT;
4536 arg_action = ACTION_POWEROFF;
4541 arg_action = ACTION_KEXEC;
4543 arg_action = ACTION_REBOOT;
4547 if (arg_action != ACTION_HALT)
4548 arg_action = ACTION_POWEROFF;
4561 /* Compatibility nops */
4565 arg_action = ACTION_CANCEL_SHUTDOWN;
4572 log_error("Unknown option code %c", c);
4577 if (argc > optind) {
4578 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4579 log_error("Failed to parse time specification: %s", argv[optind]);
4583 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4585 /* We skip the time argument */
4586 if (argc > optind + 1)
4587 arg_wall = argv + optind + 1;
4594 static int telinit_parse_argv(int argc, char *argv[]) {
4601 static const struct option options[] = {
4602 { "help", no_argument, NULL, ARG_HELP },
4603 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4604 { NULL, 0, NULL, 0 }
4607 static const struct {
4611 { '0', ACTION_POWEROFF },
4612 { '6', ACTION_REBOOT },
4613 { '1', ACTION_RESCUE },
4614 { '2', ACTION_RUNLEVEL2 },
4615 { '3', ACTION_RUNLEVEL3 },
4616 { '4', ACTION_RUNLEVEL4 },
4617 { '5', ACTION_RUNLEVEL5 },
4618 { 's', ACTION_RESCUE },
4619 { 'S', ACTION_RESCUE },
4620 { 'q', ACTION_RELOAD },
4621 { 'Q', ACTION_RELOAD },
4622 { 'u', ACTION_REEXEC },
4623 { 'U', ACTION_REEXEC }
4632 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4647 log_error("Unknown option code %c", c);
4652 if (optind >= argc) {
4657 if (optind + 1 < argc) {
4658 log_error("Too many arguments.");
4662 if (strlen(argv[optind]) != 1) {
4663 log_error("Expected single character argument.");
4667 for (i = 0; i < ELEMENTSOF(table); i++)
4668 if (table[i].from == argv[optind][0])
4671 if (i >= ELEMENTSOF(table)) {
4672 log_error("Unknown command %s.", argv[optind]);
4676 arg_action = table[i].to;
4683 static int runlevel_parse_argv(int argc, char *argv[]) {
4689 static const struct option options[] = {
4690 { "help", no_argument, NULL, ARG_HELP },
4691 { NULL, 0, NULL, 0 }
4699 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4710 log_error("Unknown option code %c", c);
4715 if (optind < argc) {
4716 log_error("Too many arguments.");
4723 static int parse_argv(int argc, char *argv[]) {
4727 if (program_invocation_short_name) {
4729 if (strstr(program_invocation_short_name, "halt")) {
4730 arg_action = ACTION_HALT;
4731 return halt_parse_argv(argc, argv);
4732 } else if (strstr(program_invocation_short_name, "poweroff")) {
4733 arg_action = ACTION_POWEROFF;
4734 return halt_parse_argv(argc, argv);
4735 } else if (strstr(program_invocation_short_name, "reboot")) {
4737 arg_action = ACTION_KEXEC;
4739 arg_action = ACTION_REBOOT;
4740 return halt_parse_argv(argc, argv);
4741 } else if (strstr(program_invocation_short_name, "shutdown")) {
4742 arg_action = ACTION_POWEROFF;
4743 return shutdown_parse_argv(argc, argv);
4744 } else if (strstr(program_invocation_short_name, "init")) {
4746 if (sd_booted() > 0) {
4747 arg_action = ACTION_INVALID;
4748 return telinit_parse_argv(argc, argv);
4750 /* Hmm, so some other init system is
4751 * running, we need to forward this
4752 * request to it. For now we simply
4753 * guess that it is Upstart. */
4755 execv("/lib/upstart/telinit", argv);
4757 log_error("Couldn't find an alternative telinit implementation to spawn.");
4761 } else if (strstr(program_invocation_short_name, "runlevel")) {
4762 arg_action = ACTION_RUNLEVEL;
4763 return runlevel_parse_argv(argc, argv);
4767 arg_action = ACTION_SYSTEMCTL;
4768 return systemctl_parse_argv(argc, argv);
4771 static int action_to_runlevel(void) {
4773 static const char table[_ACTION_MAX] = {
4774 [ACTION_HALT] = '0',
4775 [ACTION_POWEROFF] = '0',
4776 [ACTION_REBOOT] = '6',
4777 [ACTION_RUNLEVEL2] = '2',
4778 [ACTION_RUNLEVEL3] = '3',
4779 [ACTION_RUNLEVEL4] = '4',
4780 [ACTION_RUNLEVEL5] = '5',
4781 [ACTION_RESCUE] = '1'
4784 assert(arg_action < _ACTION_MAX);
4786 return table[arg_action];
4789 static int talk_upstart(void) {
4790 DBusMessage *m = NULL, *reply = NULL;
4792 int previous, rl, r;
4794 env1_buf[] = "RUNLEVEL=X",
4795 env2_buf[] = "PREVLEVEL=X";
4796 char *env1 = env1_buf, *env2 = env2_buf;
4797 const char *emit = "runlevel";
4798 dbus_bool_t b_false = FALSE;
4799 DBusMessageIter iter, sub;
4800 DBusConnection *bus;
4802 dbus_error_init(&error);
4804 if (!(rl = action_to_runlevel()))
4807 if (utmp_get_runlevel(&previous, NULL) < 0)
4810 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
4811 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4816 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
4821 if ((r = bus_check_peercred(bus)) < 0) {
4822 log_error("Failed to verify owner of bus.");
4826 if (!(m = dbus_message_new_method_call(
4827 "com.ubuntu.Upstart",
4828 "/com/ubuntu/Upstart",
4829 "com.ubuntu.Upstart0_6",
4832 log_error("Could not allocate message.");
4837 dbus_message_iter_init_append(m, &iter);
4839 env1_buf[sizeof(env1_buf)-2] = rl;
4840 env2_buf[sizeof(env2_buf)-2] = previous;
4842 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4843 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4844 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4845 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4846 !dbus_message_iter_close_container(&iter, &sub) ||
4847 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4848 log_error("Could not append arguments to message.");
4853 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4855 if (error_is_no_service(&error)) {
4860 log_error("Failed to issue method call: %s", bus_error_message(&error));
4869 dbus_message_unref(m);
4872 dbus_message_unref(reply);
4875 dbus_connection_flush(bus);
4876 dbus_connection_close(bus);
4877 dbus_connection_unref(bus);
4880 dbus_error_free(&error);
4885 static int talk_initctl(void) {
4886 struct init_request request;
4890 if (!(rl = action_to_runlevel()))
4894 request.magic = INIT_MAGIC;
4895 request.sleeptime = 0;
4896 request.cmd = INIT_CMD_RUNLVL;
4897 request.runlevel = rl;
4899 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4901 if (errno == ENOENT)
4904 log_error("Failed to open "INIT_FIFO": %m");
4909 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4910 close_nointr_nofail(fd);
4913 log_error("Failed to write to "INIT_FIFO": %m");
4914 return errno ? -errno : -EIO;
4920 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
4922 static const struct {
4930 int (* const dispatch)(DBusConnection *bus, char **args);
4932 { "list-units", LESS, 1, list_units },
4933 { "list-unit-files", EQUAL, 1, list_unit_files },
4934 { "list-jobs", EQUAL, 1, list_jobs },
4935 { "clear-jobs", EQUAL, 1, daemon_reload },
4936 { "load", MORE, 2, load_unit },
4937 { "cancel", MORE, 2, cancel_job },
4938 { "start", MORE, 2, start_unit },
4939 { "stop", MORE, 2, start_unit },
4940 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
4941 { "reload", MORE, 2, start_unit },
4942 { "restart", MORE, 2, start_unit },
4943 { "try-restart", MORE, 2, start_unit },
4944 { "reload-or-restart", MORE, 2, start_unit },
4945 { "reload-or-try-restart", MORE, 2, start_unit },
4946 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4947 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
4948 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4949 { "isolate", EQUAL, 2, start_unit },
4950 { "kill", MORE, 2, kill_unit },
4951 { "is-active", MORE, 2, check_unit },
4952 { "check", MORE, 2, check_unit },
4953 { "show", MORE, 1, show },
4954 { "status", MORE, 2, show },
4955 { "dump", EQUAL, 1, dump },
4956 { "dot", EQUAL, 1, dot },
4957 { "snapshot", LESS, 2, snapshot },
4958 { "delete", MORE, 2, delete_snapshot },
4959 { "daemon-reload", EQUAL, 1, daemon_reload },
4960 { "daemon-reexec", EQUAL, 1, daemon_reload },
4961 { "show-environment", EQUAL, 1, show_enviroment },
4962 { "set-environment", MORE, 2, set_environment },
4963 { "unset-environment", MORE, 2, set_environment },
4964 { "halt", EQUAL, 1, start_special },
4965 { "poweroff", EQUAL, 1, start_special },
4966 { "reboot", EQUAL, 1, start_special },
4967 { "kexec", EQUAL, 1, start_special },
4968 { "default", EQUAL, 1, start_special },
4969 { "rescue", EQUAL, 1, start_special },
4970 { "emergency", EQUAL, 1, start_special },
4971 { "exit", EQUAL, 1, start_special },
4972 { "reset-failed", MORE, 1, reset_failed },
4973 { "enable", MORE, 2, enable_unit },
4974 { "disable", MORE, 2, enable_unit },
4975 { "is-enabled", MORE, 2, unit_is_enabled },
4976 { "reenable", MORE, 2, enable_unit },
4977 { "preset", MORE, 2, enable_unit },
4978 { "mask", MORE, 2, enable_unit },
4979 { "unmask", MORE, 2, enable_unit },
4980 { "link", MORE, 2, enable_unit }
4990 left = argc - optind;
4993 /* Special rule: no arguments means "list-units" */
4996 if (streq(argv[optind], "help")) {
5001 for (i = 0; i < ELEMENTSOF(verbs); i++)
5002 if (streq(argv[optind], verbs[i].verb))
5005 if (i >= ELEMENTSOF(verbs)) {
5006 log_error("Unknown operation %s", argv[optind]);
5011 switch (verbs[i].argc_cmp) {
5014 if (left != verbs[i].argc) {
5015 log_error("Invalid number of arguments.");
5022 if (left < verbs[i].argc) {
5023 log_error("Too few arguments.");
5030 if (left > verbs[i].argc) {
5031 log_error("Too many arguments.");
5038 assert_not_reached("Unknown comparison operator.");
5041 /* Require a bus connection for all operations but
5043 if (!streq(verbs[i].verb, "enable") &&
5044 !streq(verbs[i].verb, "disable") &&
5045 !streq(verbs[i].verb, "is-enabled") &&
5046 !streq(verbs[i].verb, "list-unit-files") &&
5047 !streq(verbs[i].verb, "reenable") &&
5048 !streq(verbs[i].verb, "preset") &&
5049 !streq(verbs[i].verb, "mask") &&
5050 !streq(verbs[i].verb, "unmask") &&
5051 !streq(verbs[i].verb, "link")) {
5053 if (running_in_chroot() > 0) {
5054 log_info("Running in chroot, ignoring request.");
5059 log_error("Failed to get D-Bus connection: %s",
5060 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5066 if (!bus && !avoid_bus()) {
5067 log_error("Failed to get D-Bus connection: %s",
5068 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5073 return verbs[i].dispatch(bus, argv + optind);
5076 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5078 struct msghdr msghdr;
5080 union sockaddr_union sockaddr;
5081 struct shutdownd_command c;
5086 c.dry_run = dry_run;
5090 strncpy(c.wall_message, message, sizeof(c.wall_message));
5092 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5096 sockaddr.sa.sa_family = AF_UNIX;
5097 sockaddr.un.sun_path[0] = 0;
5098 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5101 iovec.iov_base = (char*) &c;
5102 iovec.iov_len = sizeof(c);
5105 msghdr.msg_name = &sockaddr;
5106 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5108 msghdr.msg_iov = &iovec;
5109 msghdr.msg_iovlen = 1;
5111 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5112 close_nointr_nofail(fd);
5116 close_nointr_nofail(fd);
5120 static int reload_with_fallback(DBusConnection *bus) {
5123 /* First, try systemd via D-Bus. */
5124 if (daemon_reload(bus, NULL) >= 0)
5128 /* Nothing else worked, so let's try signals */
5129 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5131 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5132 log_error("kill() failed: %m");
5139 static int start_with_fallback(DBusConnection *bus) {
5142 /* First, try systemd via D-Bus. */
5143 if (start_unit(bus, NULL) >= 0)
5147 /* Hmm, talking to systemd via D-Bus didn't work. Then
5148 * let's try to talk to Upstart via D-Bus. */
5149 if (talk_upstart() > 0)
5152 /* Nothing else worked, so let's try
5154 if (talk_initctl() > 0)
5157 log_error("Failed to talk to init daemon.");
5161 warn_wall(arg_action);
5165 static int halt_main(DBusConnection *bus) {
5168 if (geteuid() != 0) {
5169 log_error("Must be root.");
5175 char date[FORMAT_TIMESTAMP_MAX];
5177 m = strv_join(arg_wall, " ");
5178 r = send_shutdownd(arg_when,
5179 arg_action == ACTION_HALT ? 'H' :
5180 arg_action == ACTION_POWEROFF ? 'P' :
5188 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5190 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5191 format_timestamp(date, sizeof(date), arg_when));
5196 if (!arg_dry && !arg_immediate)
5197 return start_with_fallback(bus);
5200 if (sd_booted() > 0)
5201 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5202 else if ((r = utmp_put_shutdown()) < 0)
5203 log_warning("Failed to write utmp record: %s", strerror(-r));
5212 /* Make sure C-A-D is handled by the kernel from this
5214 reboot(RB_ENABLE_CAD);
5216 switch (arg_action) {
5219 log_info("Halting.");
5220 reboot(RB_HALT_SYSTEM);
5223 case ACTION_POWEROFF:
5224 log_info("Powering off.");
5225 reboot(RB_POWER_OFF);
5229 log_info("Rebooting.");
5230 reboot(RB_AUTOBOOT);
5234 assert_not_reached("Unknown halt action.");
5237 /* We should never reach this. */
5241 static int runlevel_main(void) {
5242 int r, runlevel, previous;
5244 r = utmp_get_runlevel(&runlevel, &previous);
5251 previous <= 0 ? 'N' : previous,
5252 runlevel <= 0 ? 'N' : runlevel);
5257 int main(int argc, char*argv[]) {
5258 int r, retval = EXIT_FAILURE;
5259 DBusConnection *bus = NULL;
5262 dbus_error_init(&error);
5264 log_parse_environment();
5267 if ((r = parse_argv(argc, argv)) < 0)
5270 retval = EXIT_SUCCESS;
5274 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5275 * let's shortcut this */
5276 if (arg_action == ACTION_RUNLEVEL) {
5277 r = runlevel_main();
5278 retval = r < 0 ? EXIT_FAILURE : r;
5282 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5283 log_info("Running in chroot, ignoring request.");
5289 if (arg_transport == TRANSPORT_NORMAL)
5290 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5291 else if (arg_transport == TRANSPORT_POLKIT) {
5292 bus_connect_system_polkit(&bus, &error);
5293 private_bus = false;
5294 } else if (arg_transport == TRANSPORT_SSH) {
5295 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5296 private_bus = false;
5298 assert_not_reached("Uh, invalid transport...");
5301 switch (arg_action) {
5303 case ACTION_SYSTEMCTL:
5304 r = systemctl_main(bus, argc, argv, &error);
5308 case ACTION_POWEROFF:
5314 case ACTION_RUNLEVEL2:
5315 case ACTION_RUNLEVEL3:
5316 case ACTION_RUNLEVEL4:
5317 case ACTION_RUNLEVEL5:
5319 case ACTION_EMERGENCY:
5320 case ACTION_DEFAULT:
5321 r = start_with_fallback(bus);
5326 r = reload_with_fallback(bus);
5329 case ACTION_CANCEL_SHUTDOWN:
5330 r = send_shutdownd(0, 0, false, false, NULL);
5333 case ACTION_INVALID:
5334 case ACTION_RUNLEVEL:
5336 assert_not_reached("Unknown action");
5339 retval = r < 0 ? EXIT_FAILURE : r;
5343 dbus_connection_flush(bus);
5344 dbus_connection_close(bus);
5345 dbus_connection_unref(bus);
5348 dbus_error_free(&error);
5352 strv_free(arg_property);