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 Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/reboot.h>
29 #include <sys/ioctl.h>
33 #include <sys/socket.h>
36 #include <sys/prctl.h>
37 #include <dbus/dbus.h>
39 #include <systemd/sd-daemon.h>
40 #include <systemd/sd-shutdown.h>
41 #include <systemd/sd-login.h>
47 #include "utmp-wtmp.h"
50 #include "path-util.h"
52 #include "dbus-common.h"
53 #include "cgroup-show.h"
54 #include "cgroup-util.h"
56 #include "path-lookup.h"
57 #include "conf-parser.h"
58 #include "exit-status.h"
59 #include "bus-errors.h"
61 #include "unit-name.h"
63 #include "spawn-ask-password-agent.h"
64 #include "spawn-polkit-agent.h"
66 #include "logs-show.h"
67 #include "path-util.h"
68 #include "socket-util.h"
70 static const char *arg_type = NULL;
71 static const char *arg_load_state = NULL;
72 static char **arg_property = NULL;
73 static bool arg_all = false;
74 static const char *arg_job_mode = "replace";
75 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
76 static bool arg_no_block = false;
77 static bool arg_no_legend = false;
78 static bool arg_no_pager = false;
79 static bool arg_no_wtmp = false;
80 static bool arg_no_wall = false;
81 static bool arg_no_reload = false;
82 static bool arg_ignore_inhibitors = false;
83 static bool arg_dry = false;
84 static bool arg_quiet = false;
85 static bool arg_full = false;
86 static int arg_force = 0;
87 static bool arg_ask_password = true;
88 static bool arg_failed = false;
89 static bool arg_runtime = false;
90 static char **arg_wall = NULL;
91 static const char *arg_kill_who = NULL;
92 static int arg_signal = SIGTERM;
93 static const char *arg_root = NULL;
94 static usec_t arg_when = 0;
116 ACTION_CANCEL_SHUTDOWN,
118 } arg_action = ACTION_SYSTEMCTL;
124 static enum transport {
128 } arg_transport = TRANSPORT_NORMAL;
129 static const char *arg_host = NULL;
130 static unsigned arg_lines = 10;
131 static OutputMode arg_output = OUTPUT_SHORT;
133 static bool private_bus = false;
135 static int daemon_reload(DBusConnection *bus, char **args);
136 static void halt_now(enum action a);
138 static void pager_open_if_enabled(void) {
146 static void ask_password_agent_open_if_enabled(void) {
148 /* Open the password agent as a child process if necessary */
150 if (!arg_ask_password)
153 if (arg_scope != UNIT_FILE_SYSTEM)
156 ask_password_agent_open();
160 static void polkit_agent_open_if_enabled(void) {
162 /* Open the polkit agent as a child process if necessary */
164 if (!arg_ask_password)
167 if (arg_scope != UNIT_FILE_SYSTEM)
174 static const char *ansi_highlight(bool b) {
179 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
182 static const char *ansi_highlight_red(bool b) {
187 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
190 static const char *ansi_highlight_green(bool b) {
195 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
198 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
201 if (!dbus_error_is_set(error))
204 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
205 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
206 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
207 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
208 return EXIT_NOPERMISSION;
210 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
211 return EXIT_NOTINSTALLED;
213 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
214 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
215 return EXIT_NOTIMPLEMENTED;
217 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
218 return EXIT_NOTCONFIGURED;
226 static void warn_wall(enum action a) {
227 static const char *table[_ACTION_MAX] = {
228 [ACTION_HALT] = "The system is going down for system halt NOW!",
229 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
230 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
231 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
232 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
233 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
234 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
241 _cleanup_free_ char *p;
243 p = strv_join(arg_wall, " ");
258 utmp_wall(table[a], NULL);
261 static bool avoid_bus(void) {
263 if (running_in_chroot() > 0)
266 if (sd_booted() <= 0)
269 if (!isempty(arg_root))
272 if (arg_scope == UNIT_FILE_GLOBAL)
280 const char *description;
281 const char *load_state;
282 const char *active_state;
283 const char *sub_state;
284 const char *following;
285 const char *unit_path;
287 const char *job_type;
288 const char *job_path;
291 static int compare_unit_info(const void *a, const void *b) {
293 const struct unit_info *u = a, *v = b;
295 d1 = strrchr(u->id, '.');
296 d2 = strrchr(v->id, '.');
301 r = strcasecmp(d1, d2);
306 return strcasecmp(u->id, v->id);
309 static bool output_show_unit(const struct unit_info *u) {
313 return streq(u->active_state, "failed");
315 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
316 streq(dot+1, arg_type))) &&
317 (!arg_load_state || streq(u->load_state, arg_load_state)) &&
318 (arg_all || !(streq(u->active_state, "inactive")
319 || 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;
327 max_id_len = sizeof("UNIT")-1;
328 active_len = sizeof("ACTIVE")-1;
329 sub_len = sizeof("SUB")-1;
330 job_len = sizeof("JOB")-1;
333 for (u = unit_infos; u < unit_infos + c; u++) {
334 if (!output_show_unit(u))
337 max_id_len = MAX(max_id_len, strlen(u->id));
338 active_len = MAX(active_len, strlen(u->active_state));
339 sub_len = MAX(sub_len, strlen(u->sub_state));
340 if (u->job_id != 0) {
341 job_len = MAX(job_len, strlen(u->job_type));
348 id_len = MIN(max_id_len, 25);
349 basic_len = 5 + id_len + 5 + active_len + sub_len;
351 basic_len += job_len + 1;
352 if (basic_len < (unsigned) columns()) {
353 unsigned extra_len, incr;
354 extra_len = columns() - basic_len;
355 /* Either UNIT already got 25, or is fully satisfied.
356 * Grant up to 25 to DESC now. */
357 incr = MIN(extra_len, 25);
360 /* split the remaining space between UNIT and DESC,
361 * but do not give UNIT more than it needs. */
363 incr = MIN(extra_len / 2, max_id_len - id_len);
365 desc_len += extra_len - incr;
371 for (u = unit_infos; u < unit_infos + c; u++) {
373 const char *on_loaded, *off_loaded;
374 const char *on_active, *off_active;
376 if (!output_show_unit(u))
379 if (!n_shown && !arg_no_legend) {
380 printf("%-*s %-6s %-*s %-*s ", id_len, "UNIT", "LOAD",
381 active_len, "ACTIVE", sub_len, "SUB");
383 printf("%-*s ", job_len, "JOB");
384 if (!arg_full && arg_no_pager)
385 printf("%.*s\n", desc_len, "DESCRIPTION");
387 printf("%s\n", "DESCRIPTION");
392 if (streq(u->load_state, "error")) {
393 on_loaded = ansi_highlight_red(true);
394 off_loaded = ansi_highlight_red(false);
396 on_loaded = off_loaded = "";
398 if (streq(u->active_state, "failed")) {
399 on_active = ansi_highlight_red(true);
400 off_active = ansi_highlight_red(false);
402 on_active = off_active = "";
404 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
406 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s",
407 id_len, e ? e : u->id,
408 on_loaded, u->load_state, off_loaded,
409 on_active, active_len, u->active_state,
410 sub_len, u->sub_state, off_active,
411 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
412 if (!arg_full && arg_no_pager)
413 printf("%.*s\n", desc_len, u->description);
415 printf("%s\n", u->description);
420 if (!arg_no_legend) {
421 const char *on, *off;
424 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
425 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
426 "SUB = The low-level unit activation state, values depend on unit type.\n");
428 printf("JOB = Pending job for the unit.\n");
430 on = ansi_highlight(true);
431 off = ansi_highlight(false);
433 on = ansi_highlight_red(true);
434 off = ansi_highlight_red(false);
438 printf("%s%u loaded units listed.%s\n"
439 "To show all installed unit files use 'systemctl list-unit-files'.\n",
442 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
443 "To show all installed unit files use 'systemctl list-unit-files'.\n",
448 static int list_units(DBusConnection *bus, char **args) {
449 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
450 _cleanup_free_ struct unit_info *unit_infos = NULL;
451 DBusMessageIter iter, sub, sub2;
452 unsigned c = 0, n_units = 0;
455 pager_open_if_enabled();
457 r = bus_method_call_with_reply(
459 "org.freedesktop.systemd1",
460 "/org/freedesktop/systemd1",
461 "org.freedesktop.systemd1.Manager",
469 if (!dbus_message_iter_init(reply, &iter) ||
470 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
471 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
472 log_error("Failed to parse reply.");
476 dbus_message_iter_recurse(&iter, &sub);
478 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
481 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT);
486 n_units = MAX(2*c, 16);
487 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
496 dbus_message_iter_recurse(&sub, &sub2);
498 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
499 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
500 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
501 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
502 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
503 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
504 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
505 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
506 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
507 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
508 log_error("Failed to parse reply.");
512 dbus_message_iter_next(&sub);
517 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
518 output_units_list(unit_infos, c);
524 static int compare_unit_file_list(const void *a, const void *b) {
526 const UnitFileList *u = a, *v = b;
528 d1 = strrchr(u->path, '.');
529 d2 = strrchr(v->path, '.');
534 r = strcasecmp(d1, d2);
539 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
542 static bool output_show_unit_file(const UnitFileList *u) {
545 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
548 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
549 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
550 const UnitFileList *u;
552 max_id_len = sizeof("UNIT FILE")-1;
553 state_cols = sizeof("STATE")-1;
554 for (u = units; u < units + c; u++) {
555 if (!output_show_unit_file(u))
558 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
559 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
564 id_cols = MIN(max_id_len, 25);
565 basic_cols = 1 + id_cols + state_cols;
566 if (basic_cols < (unsigned) columns())
567 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
569 id_cols = max_id_len;
572 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
574 for (u = units; u < units + c; u++) {
576 const char *on, *off;
579 if (!output_show_unit_file(u))
584 if (u->state == UNIT_FILE_MASKED ||
585 u->state == UNIT_FILE_MASKED_RUNTIME ||
586 u->state == UNIT_FILE_DISABLED ||
587 u->state == UNIT_FILE_INVALID) {
588 on = ansi_highlight_red(true);
589 off = ansi_highlight_red(false);
590 } else if (u->state == UNIT_FILE_ENABLED) {
591 on = ansi_highlight_green(true);
592 off = ansi_highlight_green(false);
596 id = path_get_file_name(u->path);
598 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
600 printf("%-*s %s%-*s%s\n",
602 on, state_cols, unit_file_state_to_string(u->state), off);
608 printf("\n%u unit files listed.\n", n_shown);
611 static int list_unit_files(DBusConnection *bus, char **args) {
612 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
613 _cleanup_free_ UnitFileList *units = NULL;
614 DBusMessageIter iter, sub, sub2;
615 unsigned c = 0, n_units = 0;
618 pager_open_if_enabled();
625 h = hashmap_new(string_hash_func, string_compare_func);
629 r = unit_file_get_list(arg_scope, arg_root, h);
631 unit_file_list_free(h);
632 log_error("Failed to get unit file list: %s", strerror(-r));
636 n_units = hashmap_size(h);
637 units = new(UnitFileList, n_units);
639 unit_file_list_free(h);
643 HASHMAP_FOREACH(u, h, i) {
644 memcpy(units + c++, u, sizeof(UnitFileList));
650 r = bus_method_call_with_reply(
652 "org.freedesktop.systemd1",
653 "/org/freedesktop/systemd1",
654 "org.freedesktop.systemd1.Manager",
662 if (!dbus_message_iter_init(reply, &iter) ||
663 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
664 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
665 log_error("Failed to parse reply.");
669 dbus_message_iter_recurse(&iter, &sub);
671 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
675 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT);
680 n_units = MAX(2*c, 16);
681 w = realloc(units, sizeof(struct UnitFileList) * n_units);
690 dbus_message_iter_recurse(&sub, &sub2);
692 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
693 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
694 log_error("Failed to parse reply.");
698 u->state = unit_file_state_from_string(state);
700 dbus_message_iter_next(&sub);
706 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
707 output_unit_file_list(units, c);
713 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
715 _cleanup_free_ char *n = NULL;
717 size_t max_len = MAX(columns(),20);
719 for (i = level - 1; i >= 0; i--) {
721 if(len > max_len - 3 && !arg_full) {
722 printf("%s...\n",max_len % 2 ? "" : " ");
725 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
728 if(len > max_len - 3 && !arg_full) {
729 printf("%s...\n",max_len % 2 ? "" : " ");
732 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
735 printf("%s\n", name);
739 n = ellipsize(name, max_len-len, 100);
747 static int list_dependencies_get_dependencies(DBusConnection *bus, const char *name, char ***deps) {
748 static const char dependencies[] =
750 "RequiresOverridable\0"
752 "RequisiteOverridable\0"
755 _cleanup_free_ char *path;
756 const char *interface = "org.freedesktop.systemd1.Unit";
758 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
759 DBusMessageIter iter, sub, sub2, sub3;
768 path = unit_dbus_path_from_name(name);
774 r = bus_method_call_with_reply(
776 "org.freedesktop.systemd1",
778 "org.freedesktop.DBus.Properties",
782 DBUS_TYPE_STRING, &interface,
787 if (!dbus_message_iter_init(reply, &iter) ||
788 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
789 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
790 log_error("Failed to parse reply.");
795 dbus_message_iter_recurse(&iter, &sub);
797 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
800 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
801 dbus_message_iter_recurse(&sub, &sub2);
803 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
804 log_error("Failed to parse reply.");
809 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
810 log_error("Failed to parse reply.");
815 dbus_message_iter_recurse(&sub2, &sub3);
816 dbus_message_iter_next(&sub);
818 if (!nulstr_contains(dependencies, prop))
821 if (dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_ARRAY) {
822 if (dbus_message_iter_get_element_type(&sub3) == DBUS_TYPE_STRING) {
823 DBusMessageIter sub4;
824 dbus_message_iter_recurse(&sub3, &sub4);
826 while (dbus_message_iter_get_arg_type(&sub4) != DBUS_TYPE_INVALID) {
829 assert(dbus_message_iter_get_arg_type(&sub4) == DBUS_TYPE_STRING);
830 dbus_message_iter_get_basic(&sub4, &s);
832 r = strv_extend(&ret, s);
838 dbus_message_iter_next(&sub4);
851 static int list_dependencies_compare(const void *_a, const void *_b) {
852 const char **a = (const char**) _a, **b = (const char**) _b;
853 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
855 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
857 return strcasecmp(*a, *b);
860 static int list_dependencies_one(DBusConnection *bus, const char *name, int level, char **units, unsigned int branches) {
866 u = strv_append(units, name);
870 r = list_dependencies_get_dependencies(bus, name, &deps);
874 qsort(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
876 STRV_FOREACH(c, deps) {
877 if (strv_contains(u, *c)) {
878 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
884 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
888 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
889 r = list_dependencies_one(bus, *c, level + 1, u, (branches << 1) | (c[1] == NULL ? 0 : 1));
902 static int list_dependencies(DBusConnection *bus, char **args) {
903 _cleanup_free_ char *unit = NULL;
909 unit = unit_name_mangle(args[1]);
914 u = SPECIAL_DEFAULT_TARGET;
916 pager_open_if_enabled();
920 return list_dependencies_one(bus, u, 0, NULL, 0);
923 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
925 static const char * const colors[] = {
926 "Requires", "[color=\"black\"]",
927 "RequiresOverridable", "[color=\"black\"]",
928 "Requisite", "[color=\"darkblue\"]",
929 "RequisiteOverridable", "[color=\"darkblue\"]",
930 "Wants", "[color=\"grey66\"]",
931 "Conflicts", "[color=\"red\"]",
932 "ConflictedBy", "[color=\"red\"]",
933 "After", "[color=\"green\"]"
936 const char *c = NULL;
943 for (i = 0; i < ELEMENTSOF(colors); i += 2)
944 if (streq(colors[i], prop)) {
952 if (arg_dot != DOT_ALL)
953 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
956 switch (dbus_message_iter_get_arg_type(iter)) {
958 case DBUS_TYPE_ARRAY:
960 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
963 dbus_message_iter_recurse(iter, &sub);
965 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
968 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
969 dbus_message_iter_get_basic(&sub, &s);
970 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
972 dbus_message_iter_next(&sub);
982 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
983 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
984 const char *interface = "org.freedesktop.systemd1.Unit";
986 DBusMessageIter iter, sub, sub2, sub3;
991 r = bus_method_call_with_reply(
993 "org.freedesktop.systemd1",
995 "org.freedesktop.DBus.Properties",
999 DBUS_TYPE_STRING, &interface,
1004 if (!dbus_message_iter_init(reply, &iter) ||
1005 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1006 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
1007 log_error("Failed to parse reply.");
1011 dbus_message_iter_recurse(&iter, &sub);
1013 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1016 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
1017 dbus_message_iter_recurse(&sub, &sub2);
1019 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0 ||
1020 dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
1021 log_error("Failed to parse reply.");
1025 dbus_message_iter_recurse(&sub2, &sub3);
1026 r = dot_one_property(name, prop, &sub3);
1030 dbus_message_iter_next(&sub);
1036 static int dot(DBusConnection *bus, char **args) {
1037 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1038 DBusMessageIter iter, sub, sub2;
1041 r = bus_method_call_with_reply(
1043 "org.freedesktop.systemd1",
1044 "/org/freedesktop/systemd1",
1045 "org.freedesktop.systemd1.Manager",
1053 if (!dbus_message_iter_init(reply, &iter) ||
1054 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1055 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1056 log_error("Failed to parse reply.");
1060 printf("digraph systemd {\n");
1062 dbus_message_iter_recurse(&iter, &sub);
1063 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1064 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
1066 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1067 log_error("Failed to parse reply.");
1071 dbus_message_iter_recurse(&sub, &sub2);
1073 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
1074 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
1075 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
1076 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
1077 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
1078 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
1079 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
1080 log_error("Failed to parse reply.");
1084 r = dot_one(bus, id, unit_path);
1088 /* printf("\t\"%s\";\n", id); */
1089 dbus_message_iter_next(&sub);
1094 log_info(" Color legend: black = Requires\n"
1095 " dark blue = Requisite\n"
1096 " dark grey = Wants\n"
1097 " red = Conflicts\n"
1098 " green = After\n");
1101 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
1102 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
1107 static int list_jobs(DBusConnection *bus, char **args) {
1108 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1109 DBusMessageIter iter, sub, sub2;
1113 pager_open_if_enabled();
1115 r = bus_method_call_with_reply(
1117 "org.freedesktop.systemd1",
1118 "/org/freedesktop/systemd1",
1119 "org.freedesktop.systemd1.Manager",
1127 if (!dbus_message_iter_init(reply, &iter) ||
1128 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1129 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1130 log_error("Failed to parse reply.");
1134 dbus_message_iter_recurse(&iter, &sub);
1137 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1139 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1140 const char *name, *type, *state, *job_path, *unit_path;
1144 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1145 log_error("Failed to parse reply.");
1149 dbus_message_iter_recurse(&sub, &sub2);
1151 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1152 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1153 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1154 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1155 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1156 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1157 log_error("Failed to parse reply.");
1161 e = arg_full ? NULL : ellipsize(name, 25, 33);
1162 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1167 dbus_message_iter_next(&sub);
1171 printf("\n%u jobs listed.\n", k);
1176 static int load_unit(DBusConnection *bus, char **args) {
1181 STRV_FOREACH(name, args+1) {
1182 _cleanup_free_ char *n = NULL;
1185 n = unit_name_mangle(*name);
1189 r = bus_method_call_with_reply(
1191 "org.freedesktop.systemd1",
1192 "/org/freedesktop/systemd1",
1193 "org.freedesktop.systemd1.Manager",
1197 DBUS_TYPE_STRING, &n,
1206 static int cancel_job(DBusConnection *bus, char **args) {
1211 if (strv_length(args) <= 1)
1212 return daemon_reload(bus, args);
1214 STRV_FOREACH(name, args+1) {
1218 r = safe_atou32(*name, &id);
1220 log_error("Failed to parse job id: %s", strerror(-r));
1224 r = bus_method_call_with_reply(
1226 "org.freedesktop.systemd1",
1227 "/org/freedesktop/systemd1",
1228 "org.freedesktop.systemd1.Manager",
1232 DBUS_TYPE_UINT32, &id,
1241 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1242 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1243 dbus_bool_t b = FALSE;
1244 DBusMessageIter iter, sub;
1246 *interface = "org.freedesktop.systemd1.Unit",
1247 *property = "NeedDaemonReload",
1249 _cleanup_free_ char *n = NULL;
1252 /* We ignore all errors here, since this is used to show a warning only */
1254 n = unit_name_mangle(unit);
1258 r = bus_method_call_with_reply (
1260 "org.freedesktop.systemd1",
1261 "/org/freedesktop/systemd1",
1262 "org.freedesktop.systemd1.Manager",
1266 DBUS_TYPE_STRING, &n,
1271 if (!dbus_message_get_args(reply, NULL,
1272 DBUS_TYPE_OBJECT_PATH, &path,
1276 dbus_message_unref(reply);
1279 r = bus_method_call_with_reply(
1281 "org.freedesktop.systemd1",
1283 "org.freedesktop.DBus.Properties",
1287 DBUS_TYPE_STRING, &interface,
1288 DBUS_TYPE_STRING, &property,
1293 if (!dbus_message_iter_init(reply, &iter) ||
1294 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1297 dbus_message_iter_recurse(&iter, &sub);
1298 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1301 dbus_message_iter_get_basic(&sub, &b);
1305 typedef struct WaitData {
1312 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1320 dbus_error_init(&error);
1322 log_debug("Got D-Bus request: %s.%s() on %s",
1323 dbus_message_get_interface(message),
1324 dbus_message_get_member(message),
1325 dbus_message_get_path(message));
1327 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1328 log_error("Warning! D-Bus connection terminated.");
1329 dbus_connection_close(connection);
1331 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1333 const char *path, *result, *unit;
1335 if (dbus_message_get_args(message, &error,
1336 DBUS_TYPE_UINT32, &id,
1337 DBUS_TYPE_OBJECT_PATH, &path,
1338 DBUS_TYPE_STRING, &unit,
1339 DBUS_TYPE_STRING, &result,
1340 DBUS_TYPE_INVALID)) {
1342 free(set_remove(d->set, (char*) path));
1344 if (!isempty(result))
1345 d->result = strdup(result);
1348 d->name = strdup(unit);
1353 dbus_error_free(&error);
1354 if (dbus_message_get_args(message, &error,
1355 DBUS_TYPE_UINT32, &id,
1356 DBUS_TYPE_OBJECT_PATH, &path,
1357 DBUS_TYPE_STRING, &result,
1358 DBUS_TYPE_INVALID)) {
1359 /* Compatibility with older systemd versions <
1360 * 183 during upgrades. This should be dropped
1362 free(set_remove(d->set, (char*) path));
1365 d->result = strdup(result);
1371 log_error("Failed to parse message: %s", bus_error_message(&error));
1375 dbus_error_free(&error);
1376 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1379 static int enable_wait_for_jobs(DBusConnection *bus) {
1387 dbus_error_init(&error);
1388 dbus_bus_add_match(bus,
1390 "sender='org.freedesktop.systemd1',"
1391 "interface='org.freedesktop.systemd1.Manager',"
1392 "member='JobRemoved',"
1393 "path='/org/freedesktop/systemd1'",
1396 if (dbus_error_is_set(&error)) {
1397 log_error("Failed to add match: %s", bus_error_message(&error));
1398 dbus_error_free(&error);
1402 /* This is slightly dirty, since we don't undo the match registrations. */
1406 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1416 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL))
1419 while (!set_isempty(s)) {
1421 if (!dbus_connection_read_write_dispatch(bus, -1)) {
1422 log_error("Disconnected from bus.");
1423 return -ECONNREFUSED;
1430 if (streq(d.result, "timeout"))
1431 log_error("Job for %s timed out.", strna(d.name));
1432 else if (streq(d.result, "canceled"))
1433 log_error("Job for %s canceled.", strna(d.name));
1434 else if (streq(d.result, "dependency"))
1435 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d.name));
1436 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1437 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d.name), strna(d.name));
1440 if (streq_ptr(d.result, "timeout"))
1442 else if (streq_ptr(d.result, "canceled"))
1444 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1455 dbus_connection_remove_filter(bus, wait_filter, &d);
1459 static int check_one_unit(DBusConnection *bus, const char *name, char **check_states, bool quiet) {
1460 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1461 _cleanup_free_ char *n = NULL;
1462 DBusMessageIter iter, sub;
1464 *interface = "org.freedesktop.systemd1.Unit",
1465 *property = "ActiveState";
1466 const char *state, *path;
1472 dbus_error_init(&error);
1474 n = unit_name_mangle(name);
1478 r = bus_method_call_with_reply (
1480 "org.freedesktop.systemd1",
1481 "/org/freedesktop/systemd1",
1482 "org.freedesktop.systemd1.Manager",
1486 DBUS_TYPE_STRING, &n,
1489 dbus_error_free(&error);
1496 if (!dbus_message_get_args(reply, NULL,
1497 DBUS_TYPE_OBJECT_PATH, &path,
1498 DBUS_TYPE_INVALID)) {
1499 log_error("Failed to parse reply.");
1503 dbus_message_unref(reply);
1506 r = bus_method_call_with_reply(
1508 "org.freedesktop.systemd1",
1510 "org.freedesktop.DBus.Properties",
1514 DBUS_TYPE_STRING, &interface,
1515 DBUS_TYPE_STRING, &property,
1523 if (!dbus_message_iter_init(reply, &iter) ||
1524 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1525 log_error("Failed to parse reply.");
1529 dbus_message_iter_recurse(&iter, &sub);
1531 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1532 log_error("Failed to parse reply.");
1536 dbus_message_iter_get_basic(&sub, &state);
1541 return strv_find(check_states, state) ? 1 : 0;
1544 static void check_triggering_units(
1545 DBusConnection *bus,
1546 const char *unit_name) {
1548 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1549 DBusMessageIter iter, sub;
1550 const char *interface = "org.freedesktop.systemd1.Unit",
1551 *triggered_by_property = "TriggeredBy";
1552 char _cleanup_free_ *unit_path = NULL, *n = NULL;
1553 bool print_warning_label = true;
1556 n = unit_name_mangle(unit_name);
1562 unit_path = unit_dbus_path_from_name(n);
1568 r = bus_method_call_with_reply(
1570 "org.freedesktop.systemd1",
1572 "org.freedesktop.DBus.Properties",
1576 DBUS_TYPE_STRING, &interface,
1577 DBUS_TYPE_STRING, &triggered_by_property,
1582 if (!dbus_message_iter_init(reply, &iter) ||
1583 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1584 log_error("Failed to parse reply.");
1588 dbus_message_iter_recurse(&iter, &sub);
1589 dbus_message_iter_recurse(&sub, &iter);
1592 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1593 const char * const check_states[] = {
1598 const char *service_trigger;
1600 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1601 log_error("Failed to parse reply.");
1605 dbus_message_iter_get_basic(&sub, &service_trigger);
1607 r = check_one_unit(bus, service_trigger, (char**) check_states, true);
1611 if (print_warning_label) {
1612 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1613 print_warning_label = false;
1616 log_warning(" %s", service_trigger);
1619 dbus_message_iter_next(&sub);
1623 static int start_unit_one(
1624 DBusConnection *bus,
1631 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1632 _cleanup_free_ char *n;
1641 n = unit_name_mangle(name);
1645 r = bus_method_call_with_reply(
1647 "org.freedesktop.systemd1",
1648 "/org/freedesktop/systemd1",
1649 "org.freedesktop.systemd1.Manager",
1653 DBUS_TYPE_STRING, &n,
1654 DBUS_TYPE_STRING, &mode,
1657 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
1658 /* There's always a fallback possible for
1659 * legacy actions. */
1662 log_error("Failed to issue method call: %s", bus_error_message(error));
1667 if (!dbus_message_get_args(reply, error,
1668 DBUS_TYPE_OBJECT_PATH, &path,
1669 DBUS_TYPE_INVALID)) {
1670 log_error("Failed to parse reply: %s", bus_error_message(error));
1674 if (need_daemon_reload(bus, n))
1675 log_warning("Warning: Unit file of %s changed on disk, 'systemctl %s daemon-reload' recommended.",
1676 n, arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1688 log_error("Failed to add path to set.");
1696 static enum action verb_to_action(const char *verb) {
1697 if (streq(verb, "halt"))
1699 else if (streq(verb, "poweroff"))
1700 return ACTION_POWEROFF;
1701 else if (streq(verb, "reboot"))
1702 return ACTION_REBOOT;
1703 else if (streq(verb, "kexec"))
1704 return ACTION_KEXEC;
1705 else if (streq(verb, "rescue"))
1706 return ACTION_RESCUE;
1707 else if (streq(verb, "emergency"))
1708 return ACTION_EMERGENCY;
1709 else if (streq(verb, "default"))
1710 return ACTION_DEFAULT;
1711 else if (streq(verb, "exit"))
1713 else if (streq(verb, "suspend"))
1714 return ACTION_SUSPEND;
1715 else if (streq(verb, "hibernate"))
1716 return ACTION_HIBERNATE;
1717 else if (streq(verb, "hybrid-sleep"))
1718 return ACTION_HYBRID_SLEEP;
1720 return ACTION_INVALID;
1723 static int start_unit(DBusConnection *bus, char **args) {
1725 static const char * const table[_ACTION_MAX] = {
1726 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1727 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1728 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1729 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1730 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1731 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1732 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1733 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1734 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1735 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1736 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1737 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1738 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1739 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET,
1740 [ACTION_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET
1744 const char *method, *mode, *one_name;
1749 dbus_error_init(&error);
1753 ask_password_agent_open_if_enabled();
1755 if (arg_action == ACTION_SYSTEMCTL) {
1757 streq(args[0], "stop") ||
1758 streq(args[0], "condstop") ? "StopUnit" :
1759 streq(args[0], "reload") ? "ReloadUnit" :
1760 streq(args[0], "restart") ? "RestartUnit" :
1762 streq(args[0], "try-restart") ||
1763 streq(args[0], "condrestart") ? "TryRestartUnit" :
1765 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1767 streq(args[0], "reload-or-try-restart") ||
1768 streq(args[0], "condreload") ||
1770 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1774 (streq(args[0], "isolate") ||
1775 streq(args[0], "rescue") ||
1776 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1778 one_name = table[verb_to_action(args[0])];
1781 assert(arg_action < ELEMENTSOF(table));
1782 assert(table[arg_action]);
1784 method = "StartUnit";
1786 mode = (arg_action == ACTION_EMERGENCY ||
1787 arg_action == ACTION_RESCUE ||
1788 arg_action == ACTION_RUNLEVEL2 ||
1789 arg_action == ACTION_RUNLEVEL3 ||
1790 arg_action == ACTION_RUNLEVEL4 ||
1791 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1793 one_name = table[arg_action];
1796 if (!arg_no_block) {
1797 ret = enable_wait_for_jobs(bus);
1799 log_error("Could not watch jobs: %s", strerror(-ret));
1803 s = set_new(string_hash_func, string_compare_func);
1811 ret = start_unit_one(bus, method, one_name, mode, &error, s);
1813 ret = translate_bus_error_to_exit_status(ret, &error);
1815 STRV_FOREACH(name, args+1) {
1816 r = start_unit_one(bus, method, *name, mode, &error, s);
1818 ret = translate_bus_error_to_exit_status(r, &error);
1819 dbus_error_free(&error);
1824 if (!arg_no_block) {
1825 r = wait_for_jobs(bus, s);
1831 /* When stopping units, warn if they can still be triggered by
1832 * another active unit (socket, path, timer) */
1833 if (!arg_quiet && streq(method, "StopUnit")) {
1835 check_triggering_units(bus, one_name);
1837 STRV_FOREACH(name, args+1)
1838 check_triggering_units(bus, *name);
1844 dbus_error_free(&error);
1849 /* Ask systemd-logind, which might grant access to unprivileged users
1850 * through PolicyKit */
1851 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1854 dbus_bool_t interactive = true;
1859 polkit_agent_open_if_enabled();
1867 case ACTION_POWEROFF:
1868 method = "PowerOff";
1871 case ACTION_SUSPEND:
1875 case ACTION_HIBERNATE:
1876 method = "Hibernate";
1879 case ACTION_HYBRID_SLEEP:
1880 method = "HybridSleep";
1887 return bus_method_call_with_reply(
1889 "org.freedesktop.login1",
1890 "/org/freedesktop/login1",
1891 "org.freedesktop.login1.Manager",
1895 DBUS_TYPE_BOOLEAN, &interactive,
1902 static int check_inhibitors(DBusConnection *bus, enum action a) {
1904 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1905 DBusMessageIter iter, sub, sub2;
1908 _cleanup_strv_free_ char **sessions = NULL;
1914 if (arg_ignore_inhibitors || arg_force > 0)
1926 r = bus_method_call_with_reply(
1928 "org.freedesktop.login1",
1929 "/org/freedesktop/login1",
1930 "org.freedesktop.login1.Manager",
1936 /* If logind is not around, then there are no inhibitors... */
1939 if (!dbus_message_iter_init(reply, &iter) ||
1940 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1941 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1942 log_error("Failed to parse reply.");
1946 dbus_message_iter_recurse(&iter, &sub);
1947 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1948 const char *what, *who, *why, *mode;
1950 _cleanup_strv_free_ char **sv = NULL;
1951 _cleanup_free_ char *comm = NULL, *user = NULL;
1953 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1954 log_error("Failed to parse reply.");
1958 dbus_message_iter_recurse(&sub, &sub2);
1960 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &what, true) < 0 ||
1961 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &who, true) < 0 ||
1962 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &why, true) < 0 ||
1963 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &mode, true) < 0 ||
1964 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &uid, true) < 0 ||
1965 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, false) < 0) {
1966 log_error("Failed to parse reply.");
1970 if (!streq(mode, "block"))
1973 sv = strv_split(what, ":");
1977 if (!strv_contains(sv,
1979 a == ACTION_POWEROFF ||
1980 a == ACTION_REBOOT ||
1981 a == ACTION_KEXEC ? "shutdown" : "sleep"))
1984 get_process_comm(pid, &comm);
1985 user = uid_to_name(uid);
1986 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
1987 who, (unsigned long) pid, strna(comm), strna(user), why);
1991 dbus_message_iter_next(&sub);
1994 dbus_message_iter_recurse(&iter, &sub);
1996 /* Check for current sessions */
1997 sd_get_sessions(&sessions);
1998 STRV_FOREACH(s, sessions) {
2000 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
2002 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
2005 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
2008 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
2011 sd_session_get_tty(*s, &tty);
2012 sd_session_get_seat(*s, &seat);
2013 sd_session_get_service(*s, &service);
2014 user = uid_to_name(uid);
2016 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
2023 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
2024 a == ACTION_HALT ? "halt" :
2025 a == ACTION_POWEROFF ? "poweroff" :
2026 a == ACTION_REBOOT ? "reboot" :
2027 a == ACTION_KEXEC ? "kexec" :
2028 a == ACTION_SUSPEND ? "suspend" :
2029 a == ACTION_HIBERNATE ? "hibernate" : "hybrid-sleep");
2037 static int start_special(DBusConnection *bus, char **args) {
2043 a = verb_to_action(args[0]);
2045 r = check_inhibitors(bus, a);
2049 if (arg_force >= 2 && geteuid() != 0) {
2050 log_error("Must be root.");
2054 if (arg_force >= 2 &&
2055 (a == ACTION_HALT ||
2056 a == ACTION_POWEROFF ||
2057 a == ACTION_REBOOT))
2060 if (arg_force >= 1 &&
2061 (a == ACTION_HALT ||
2062 a == ACTION_POWEROFF ||
2063 a == ACTION_REBOOT ||
2064 a == ACTION_KEXEC ||
2066 return daemon_reload(bus, args);
2068 /* first try logind, to allow authentication with polkit */
2069 if (geteuid() != 0 &&
2070 (a == ACTION_POWEROFF ||
2071 a == ACTION_REBOOT ||
2072 a == ACTION_SUSPEND ||
2073 a == ACTION_HIBERNATE ||
2074 a == ACTION_HYBRID_SLEEP)) {
2075 r = reboot_with_logind(bus, a);
2080 r = start_unit(bus, args);
2087 static int check_unit_active(DBusConnection *bus, char **args) {
2088 const char * const check_states[] = {
2095 int r = 3; /* According to LSB: "program is not running" */
2100 STRV_FOREACH(name, args+1) {
2103 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
2113 static int check_unit_failed(DBusConnection *bus, char **args) {
2114 const char * const check_states[] = {
2125 STRV_FOREACH(name, args+1) {
2128 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
2138 static int kill_unit(DBusConnection *bus, char **args) {
2146 arg_kill_who = "all";
2148 STRV_FOREACH(name, args+1) {
2149 _cleanup_free_ char *n = NULL;
2151 n = unit_name_mangle(*name);
2155 r = bus_method_call_with_reply(
2157 "org.freedesktop.systemd1",
2158 "/org/freedesktop/systemd1",
2159 "org.freedesktop.systemd1.Manager",
2163 DBUS_TYPE_STRING, &n,
2164 DBUS_TYPE_STRING, &arg_kill_who,
2165 DBUS_TYPE_INT32, &arg_signal,
2173 static int set_cgroup(DBusConnection *bus, char **args) {
2174 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
2177 DBusMessageIter iter;
2179 _cleanup_free_ char *n = NULL;
2180 const char *runtime;
2185 dbus_error_init(&error);
2188 streq(args[0], "set-cgroup") ? "SetUnitControlGroups" :
2189 streq(args[0], "unset-group") ? "UnsetUnitControlGroups"
2190 : "UnsetUnitControlGroupAttributes";
2192 n = unit_name_mangle(args[1]);
2196 m = dbus_message_new_method_call(
2197 "org.freedesktop.systemd1",
2198 "/org/freedesktop/systemd1",
2199 "org.freedesktop.systemd1.Manager",
2204 dbus_message_iter_init_append(m, &iter);
2205 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n))
2208 r = bus_append_strv_iter(&iter, args + 2);
2212 runtime = arg_runtime ? "runtime" : "persistent";
2213 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &runtime))
2216 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2218 log_error("Failed to issue method call: %s", bus_error_message(&error));
2219 dbus_error_free(&error);
2226 static int set_cgroup_attr(DBusConnection *bus, char **args) {
2227 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
2229 DBusMessageIter iter, sub, sub2;
2231 _cleanup_free_ char *n = NULL;
2232 const char *runtime;
2237 dbus_error_init(&error);
2239 if (strv_length(args) % 2 != 0) {
2240 log_error("Expecting an uneven number of arguments!");
2244 n = unit_name_mangle(args[1]);
2248 m = dbus_message_new_method_call(
2249 "org.freedesktop.systemd1",
2250 "/org/freedesktop/systemd1",
2251 "org.freedesktop.systemd1.Manager",
2252 "SetUnitControlGroupAttributes");
2256 dbus_message_iter_init_append(m, &iter);
2257 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n) ||
2258 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ss)", &sub))
2261 STRV_FOREACH_PAIR(x, y, args + 2) {
2262 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
2263 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, x) ||
2264 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, y) ||
2265 !dbus_message_iter_close_container(&sub, &sub2))
2269 runtime = arg_runtime ? "runtime" : "persistent";
2270 if (!dbus_message_iter_close_container(&iter, &sub) ||
2271 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &runtime))
2274 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2276 log_error("Failed to issue method call: %s", bus_error_message(&error));
2277 dbus_error_free(&error);
2284 static int get_cgroup_attr(DBusConnection *bus, char **args) {
2285 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
2287 DBusMessageIter iter;
2289 _cleanup_free_ char *n = NULL;
2290 _cleanup_strv_free_ char **list = NULL;
2296 dbus_error_init(&error);
2298 n = unit_name_mangle(args[1]);
2302 m = dbus_message_new_method_call(
2303 "org.freedesktop.systemd1",
2304 "/org/freedesktop/systemd1",
2305 "org.freedesktop.systemd1.Manager",
2306 "GetUnitControlGroupAttributes");
2310 dbus_message_iter_init_append(m, &iter);
2311 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n))
2314 r = bus_append_strv_iter(&iter, args + 2);
2318 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2320 log_error("Failed to issue method call: %s", bus_error_message(&error));
2321 dbus_error_free(&error);
2325 dbus_message_iter_init(reply, &iter);
2326 r = bus_parse_strv_iter(&iter, &list);
2328 log_error("Failed to parse value list.");
2332 STRV_FOREACH(a, list) {
2333 if (endswith(*a, "\n"))
2342 typedef struct ExecStatusInfo {
2350 usec_t start_timestamp;
2351 usec_t exit_timestamp;
2356 LIST_FIELDS(struct ExecStatusInfo, exec);
2359 static void exec_status_info_free(ExecStatusInfo *i) {
2368 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2369 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2370 DBusMessageIter sub2, sub3;
2374 int32_t code, status;
2380 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2383 dbus_message_iter_recurse(sub, &sub2);
2385 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2388 i->path = strdup(path);
2392 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2393 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2397 dbus_message_iter_recurse(&sub2, &sub3);
2398 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2399 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2400 dbus_message_iter_next(&sub3);
2404 i->argv = new0(char*, n+1);
2409 dbus_message_iter_recurse(&sub2, &sub3);
2410 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2413 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2414 dbus_message_iter_get_basic(&sub3, &s);
2415 dbus_message_iter_next(&sub3);
2417 i->argv[n] = strdup(s);
2424 if (!dbus_message_iter_next(&sub2) ||
2425 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2426 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2427 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2428 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2429 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2430 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2431 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2432 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2436 i->start_timestamp = (usec_t) start_timestamp;
2437 i->exit_timestamp = (usec_t) exit_timestamp;
2438 i->pid = (pid_t) pid;
2445 typedef struct UnitStatusInfo {
2447 const char *load_state;
2448 const char *active_state;
2449 const char *sub_state;
2450 const char *unit_file_state;
2452 const char *description;
2453 const char *following;
2455 char **documentation;
2457 const char *fragment_path;
2458 const char *source_path;
2459 const char *default_control_group;
2461 const char *load_error;
2464 usec_t inactive_exit_timestamp;
2465 usec_t inactive_exit_timestamp_monotonic;
2466 usec_t active_enter_timestamp;
2467 usec_t active_exit_timestamp;
2468 usec_t inactive_enter_timestamp;
2470 bool need_daemon_reload;
2475 const char *status_text;
2478 usec_t start_timestamp;
2479 usec_t exit_timestamp;
2481 int exit_code, exit_status;
2483 usec_t condition_timestamp;
2484 bool condition_result;
2487 unsigned n_accepted;
2488 unsigned n_connections;
2492 const char *sysfs_path;
2494 /* Mount, Automount */
2500 LIST_HEAD(ExecStatusInfo, exec);
2503 static void print_status_info(UnitStatusInfo *i) {
2505 const char *on, *off, *ss;
2507 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2508 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2511 arg_all * OUTPUT_SHOW_ALL |
2512 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2513 on_tty() * OUTPUT_COLOR |
2514 !arg_quiet * OUTPUT_WARN_CUTOFF |
2515 arg_full * OUTPUT_FULL_WIDTH;
2519 /* This shows pretty information about a unit. See
2520 * print_property() for a low-level property printer */
2522 printf("%s", strna(i->id));
2524 if (i->description && !streq_ptr(i->id, i->description))
2525 printf(" - %s", i->description);
2530 printf("\t Follow: unit currently follows state of %s\n", i->following);
2532 if (streq_ptr(i->load_state, "error")) {
2533 on = ansi_highlight_red(true);
2534 off = ansi_highlight_red(false);
2538 path = i->source_path ? i->source_path : i->fragment_path;
2541 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2542 else if (path && i->unit_file_state)
2543 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2545 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2547 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2549 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2551 if (streq_ptr(i->active_state, "failed")) {
2552 on = ansi_highlight_red(true);
2553 off = ansi_highlight_red(false);
2554 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2555 on = ansi_highlight_green(true);
2556 off = ansi_highlight_green(false);
2561 printf("\t Active: %s%s (%s)%s",
2563 strna(i->active_state),
2567 printf("\t Active: %s%s%s",
2569 strna(i->active_state),
2572 if (!isempty(i->result) && !streq(i->result, "success"))
2573 printf(" (Result: %s)", i->result);
2575 timestamp = (streq_ptr(i->active_state, "active") ||
2576 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2577 (streq_ptr(i->active_state, "inactive") ||
2578 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2579 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2580 i->active_exit_timestamp;
2582 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2583 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2586 printf(" since %s; %s\n", s2, s1);
2588 printf(" since %s\n", s2);
2592 if (!i->condition_result && i->condition_timestamp > 0) {
2593 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2594 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2597 printf("\t start condition failed at %s; %s\n", s2, s1);
2599 printf("\t start condition failed at %s\n", s2);
2603 printf("\t Device: %s\n", i->sysfs_path);
2605 printf("\t Where: %s\n", i->where);
2607 printf("\t What: %s\n", i->what);
2609 if (!strv_isempty(i->documentation)) {
2613 STRV_FOREACH(t, i->documentation) {
2615 printf("\t Docs: %s\n", *t);
2618 printf("\t %s\n", *t);
2623 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2625 LIST_FOREACH(exec, p, i->exec) {
2626 _cleanup_free_ char *t = NULL;
2629 /* Only show exited processes here */
2633 t = strv_join(p->argv, " ");
2634 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2636 good = is_clean_exit_lsb(p->code, p->status, NULL);
2638 on = ansi_highlight_red(true);
2639 off = ansi_highlight_red(false);
2643 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2645 if (p->code == CLD_EXITED) {
2648 printf("status=%i", p->status);
2650 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2655 printf("signal=%s", signal_to_string(p->status));
2657 printf(")%s\n", off);
2659 if (i->main_pid == p->pid &&
2660 i->start_timestamp == p->start_timestamp &&
2661 i->exit_timestamp == p->start_timestamp)
2662 /* Let's not show this twice */
2665 if (p->pid == i->control_pid)
2669 if (i->main_pid > 0 || i->control_pid > 0) {
2672 if (i->main_pid > 0) {
2673 printf("Main PID: %u", (unsigned) i->main_pid);
2676 _cleanup_free_ char *t = NULL;
2677 get_process_comm(i->main_pid, &t);
2680 } else if (i->exit_code > 0) {
2681 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2683 if (i->exit_code == CLD_EXITED) {
2686 printf("status=%i", i->exit_status);
2688 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2693 printf("signal=%s", signal_to_string(i->exit_status));
2698 if (i->main_pid > 0 && i->control_pid > 0)
2701 if (i->control_pid > 0) {
2702 _cleanup_free_ char *t = NULL;
2704 printf(" Control: %u", (unsigned) i->control_pid);
2706 get_process_comm(i->control_pid, &t);
2715 printf("\t Status: \"%s\"\n", i->status_text);
2717 if (i->default_control_group &&
2718 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_by_spec(i->default_control_group, false) == 0)) {
2721 printf("\t CGroup: %s\n", i->default_control_group);
2723 if (arg_transport != TRANSPORT_SSH) {
2733 if (i->main_pid > 0)
2734 extra[k++] = i->main_pid;
2736 if (i->control_pid > 0)
2737 extra[k++] = i->control_pid;
2739 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, extra, k, flags);
2743 if (i->id && arg_transport != TRANSPORT_SSH) {
2745 if(arg_scope == UNIT_FILE_SYSTEM)
2746 show_journal_by_unit(stdout,
2750 i->inactive_exit_timestamp_monotonic,
2754 show_journal_by_user_unit(stdout,
2758 i->inactive_exit_timestamp_monotonic,
2764 if (i->need_daemon_reload)
2765 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2766 ansi_highlight_red(true),
2767 ansi_highlight_red(false),
2768 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2771 static void show_unit_help(UnitStatusInfo *i) {
2776 if (!i->documentation) {
2777 log_info("Documentation for %s not known.", i->id);
2781 STRV_FOREACH(p, i->documentation) {
2783 if (startswith(*p, "man:")) {
2786 char *page = NULL, *section = NULL;
2787 const char *args[4] = { "man", NULL, NULL, NULL };
2792 if ((*p)[k-1] == ')')
2793 e = strrchr(*p, '(');
2796 page = strndup((*p) + 4, e - *p - 4);
2802 section = strndup(e + 1, *p + k - e - 2);
2816 log_error("Failed to fork: %m");
2824 execvp(args[0], (char**) args);
2825 log_error("Failed to execute man: %m");
2826 _exit(EXIT_FAILURE);
2832 wait_for_terminate(pid, NULL);
2834 log_info("Can't show: %s", *p);
2838 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2844 switch (dbus_message_iter_get_arg_type(iter)) {
2846 case DBUS_TYPE_STRING: {
2849 dbus_message_iter_get_basic(iter, &s);
2852 if (streq(name, "Id"))
2854 else if (streq(name, "LoadState"))
2856 else if (streq(name, "ActiveState"))
2857 i->active_state = s;
2858 else if (streq(name, "SubState"))
2860 else if (streq(name, "Description"))
2862 else if (streq(name, "FragmentPath"))
2863 i->fragment_path = s;
2864 else if (streq(name, "SourcePath"))
2866 else if (streq(name, "DefaultControlGroup"))
2867 i->default_control_group = s;
2868 else if (streq(name, "StatusText"))
2870 else if (streq(name, "SysFSPath"))
2872 else if (streq(name, "Where"))
2874 else if (streq(name, "What"))
2876 else if (streq(name, "Following"))
2878 else if (streq(name, "UnitFileState"))
2879 i->unit_file_state = s;
2880 else if (streq(name, "Result"))
2887 case DBUS_TYPE_BOOLEAN: {
2890 dbus_message_iter_get_basic(iter, &b);
2892 if (streq(name, "Accept"))
2894 else if (streq(name, "NeedDaemonReload"))
2895 i->need_daemon_reload = b;
2896 else if (streq(name, "ConditionResult"))
2897 i->condition_result = b;
2902 case DBUS_TYPE_UINT32: {
2905 dbus_message_iter_get_basic(iter, &u);
2907 if (streq(name, "MainPID")) {
2909 i->main_pid = (pid_t) u;
2912 } else if (streq(name, "ControlPID"))
2913 i->control_pid = (pid_t) u;
2914 else if (streq(name, "ExecMainPID")) {
2916 i->main_pid = (pid_t) u;
2917 } else if (streq(name, "NAccepted"))
2919 else if (streq(name, "NConnections"))
2920 i->n_connections = u;
2925 case DBUS_TYPE_INT32: {
2928 dbus_message_iter_get_basic(iter, &j);
2930 if (streq(name, "ExecMainCode"))
2931 i->exit_code = (int) j;
2932 else if (streq(name, "ExecMainStatus"))
2933 i->exit_status = (int) j;
2938 case DBUS_TYPE_UINT64: {
2941 dbus_message_iter_get_basic(iter, &u);
2943 if (streq(name, "ExecMainStartTimestamp"))
2944 i->start_timestamp = (usec_t) u;
2945 else if (streq(name, "ExecMainExitTimestamp"))
2946 i->exit_timestamp = (usec_t) u;
2947 else if (streq(name, "ActiveEnterTimestamp"))
2948 i->active_enter_timestamp = (usec_t) u;
2949 else if (streq(name, "InactiveEnterTimestamp"))
2950 i->inactive_enter_timestamp = (usec_t) u;
2951 else if (streq(name, "InactiveExitTimestamp"))
2952 i->inactive_exit_timestamp = (usec_t) u;
2953 else if (streq(name, "InactiveExitTimestampMonotonic"))
2954 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2955 else if (streq(name, "ActiveExitTimestamp"))
2956 i->active_exit_timestamp = (usec_t) u;
2957 else if (streq(name, "ConditionTimestamp"))
2958 i->condition_timestamp = (usec_t) u;
2963 case DBUS_TYPE_ARRAY: {
2965 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2966 startswith(name, "Exec")) {
2967 DBusMessageIter sub;
2969 dbus_message_iter_recurse(iter, &sub);
2970 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2971 ExecStatusInfo *info;
2974 if (!(info = new0(ExecStatusInfo, 1)))
2977 if (!(info->name = strdup(name))) {
2982 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2987 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2989 dbus_message_iter_next(&sub);
2991 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2992 streq(name, "Documentation")) {
2994 DBusMessageIter sub;
2996 dbus_message_iter_recurse(iter, &sub);
2997 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
3001 dbus_message_iter_get_basic(&sub, &s);
3003 l = strv_append(i->documentation, s);
3007 strv_free(i->documentation);
3008 i->documentation = l;
3010 dbus_message_iter_next(&sub);
3017 case DBUS_TYPE_STRUCT: {
3019 if (streq(name, "LoadError")) {
3020 DBusMessageIter sub;
3021 const char *n, *message;
3024 dbus_message_iter_recurse(iter, &sub);
3026 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
3030 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
3034 if (!isempty(message))
3035 i->load_error = message;
3045 static int print_property(const char *name, DBusMessageIter *iter) {
3049 /* This is a low-level property printer, see
3050 * print_status_info() for the nicer output */
3052 if (arg_property && !strv_find(arg_property, name))
3055 switch (dbus_message_iter_get_arg_type(iter)) {
3057 case DBUS_TYPE_STRUCT: {
3058 DBusMessageIter sub;
3059 dbus_message_iter_recurse(iter, &sub);
3061 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
3064 dbus_message_iter_get_basic(&sub, &u);
3067 printf("%s=%u\n", name, (unsigned) u);
3069 printf("%s=\n", name);
3072 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
3075 dbus_message_iter_get_basic(&sub, &s);
3077 if (arg_all || s[0])
3078 printf("%s=%s\n", name, s);
3081 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
3082 const char *a = NULL, *b = NULL;
3084 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
3085 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
3087 if (arg_all || !isempty(a) || !isempty(b))
3088 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
3096 case DBUS_TYPE_ARRAY:
3098 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
3099 DBusMessageIter sub, sub2;
3101 dbus_message_iter_recurse(iter, &sub);
3102 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3106 dbus_message_iter_recurse(&sub, &sub2);
3108 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
3109 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
3110 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
3112 dbus_message_iter_next(&sub);
3117 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
3118 DBusMessageIter sub, sub2;
3120 dbus_message_iter_recurse(iter, &sub);
3121 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3122 const char *type, *path;
3124 dbus_message_iter_recurse(&sub, &sub2);
3126 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
3127 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
3128 printf("%s=%s\n", type, path);
3130 dbus_message_iter_next(&sub);
3135 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
3136 DBusMessageIter sub, sub2;
3138 dbus_message_iter_recurse(iter, &sub);
3139 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3141 uint64_t value, next_elapse;
3143 dbus_message_iter_recurse(&sub, &sub2);
3145 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
3146 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
3147 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
3148 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3150 printf("%s={ value=%s ; next_elapse=%s }\n",
3152 format_timespan(timespan1, sizeof(timespan1), value),
3153 format_timespan(timespan2, sizeof(timespan2), next_elapse));
3156 dbus_message_iter_next(&sub);
3161 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
3162 DBusMessageIter sub, sub2;
3164 dbus_message_iter_recurse(iter, &sub);
3165 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3166 const char *controller, *attr, *value;
3168 dbus_message_iter_recurse(&sub, &sub2);
3170 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3171 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3172 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3174 printf("ControlGroupAttributes={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3180 dbus_message_iter_next(&sub);
3185 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3186 DBusMessageIter sub;
3188 dbus_message_iter_recurse(iter, &sub);
3189 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3190 ExecStatusInfo info;
3193 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3194 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3197 t = strv_join(info.argv, " ");
3199 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3203 yes_no(info.ignore),
3204 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3205 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3206 (unsigned) info. pid,
3207 sigchld_code_to_string(info.code),
3209 info.code == CLD_EXITED ? "" : "/",
3210 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3216 strv_free(info.argv);
3218 dbus_message_iter_next(&sub);
3227 if (generic_print_property(name, iter, arg_all) > 0)
3231 printf("%s=[unprintable]\n", name);
3236 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3237 _cleanup_free_ DBusMessage *reply = NULL;
3238 const char *interface = "";
3240 DBusMessageIter iter, sub, sub2, sub3;
3241 UnitStatusInfo info;
3249 r = bus_method_call_with_reply(
3251 "org.freedesktop.systemd1",
3253 "org.freedesktop.DBus.Properties",
3257 DBUS_TYPE_STRING, &interface,
3262 if (!dbus_message_iter_init(reply, &iter) ||
3263 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3264 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3265 log_error("Failed to parse reply.");
3269 dbus_message_iter_recurse(&iter, &sub);
3276 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3279 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
3280 dbus_message_iter_recurse(&sub, &sub2);
3282 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
3283 dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3284 log_error("Failed to parse reply.");
3288 dbus_message_iter_recurse(&sub2, &sub3);
3290 if (show_properties)
3291 r = print_property(name, &sub3);
3293 r = status_property(name, &sub3, &info);
3295 log_error("Failed to parse reply.");
3299 dbus_message_iter_next(&sub);
3304 if (!show_properties) {
3305 if (streq(verb, "help"))
3306 show_unit_help(&info);
3308 print_status_info(&info);
3311 strv_free(info.documentation);
3313 if (!streq_ptr(info.active_state, "active") &&
3314 !streq_ptr(info.active_state, "reloading") &&
3315 streq(verb, "status"))
3316 /* According to LSB: "program not running" */
3319 while ((p = info.exec)) {
3320 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3321 exec_status_info_free(p);
3327 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3328 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3329 const char *path = NULL;
3333 dbus_error_init(&error);
3335 r = bus_method_call_with_reply(
3337 "org.freedesktop.systemd1",
3338 "/org/freedesktop/systemd1",
3339 "org.freedesktop.systemd1.Manager",
3343 DBUS_TYPE_UINT32, &pid,
3348 if (!dbus_message_get_args(reply, &error,
3349 DBUS_TYPE_OBJECT_PATH, &path,
3350 DBUS_TYPE_INVALID)) {
3351 log_error("Failed to parse reply: %s", bus_error_message(&error));
3356 r = show_one(verb, bus, path, false, new_line);
3359 dbus_error_free(&error);
3364 static int show(DBusConnection *bus, char **args) {
3366 bool show_properties, new_line = false;
3372 show_properties = streq(args[0], "show");
3374 if (show_properties)
3375 pager_open_if_enabled();
3377 /* If no argument is specified inspect the manager itself */
3379 if (show_properties && strv_length(args) <= 1)
3380 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3382 STRV_FOREACH(name, args+1) {
3385 if (safe_atou32(*name, &id) < 0) {
3386 _cleanup_free_ char *p = NULL, *n = NULL;
3387 /* Interpret as unit name */
3389 n = unit_name_mangle(*name);
3393 p = unit_dbus_path_from_name(n);
3397 r = show_one(args[0], bus, p, show_properties, &new_line);
3401 } else if (show_properties) {
3402 _cleanup_free_ char *p = NULL;
3404 /* Interpret as job id */
3405 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3408 r = show_one(args[0], bus, p, show_properties, &new_line);
3413 /* Interpret as PID */
3414 r = show_one_by_pid(args[0], bus, id, &new_line);
3423 static int dump(DBusConnection *bus, char **args) {
3424 _cleanup_free_ DBusMessage *reply = NULL;
3429 dbus_error_init(&error);
3431 pager_open_if_enabled();
3433 r = bus_method_call_with_reply(
3435 "org.freedesktop.systemd1",
3436 "/org/freedesktop/systemd1",
3437 "org.freedesktop.systemd1.Manager",
3445 if (!dbus_message_get_args(reply, &error,
3446 DBUS_TYPE_STRING, &text,
3447 DBUS_TYPE_INVALID)) {
3448 log_error("Failed to parse reply: %s", bus_error_message(&error));
3449 dbus_error_free(&error);
3453 fputs(text, stdout);
3457 static int snapshot(DBusConnection *bus, char **args) {
3458 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3461 dbus_bool_t cleanup = FALSE;
3462 DBusMessageIter iter, sub;
3465 *interface = "org.freedesktop.systemd1.Unit",
3467 _cleanup_free_ char *n = NULL;
3469 dbus_error_init(&error);
3471 if (strv_length(args) > 1)
3472 n = snapshot_name_mangle(args[1]);
3478 r = bus_method_call_with_reply (
3480 "org.freedesktop.systemd1",
3481 "/org/freedesktop/systemd1",
3482 "org.freedesktop.systemd1.Manager",
3486 DBUS_TYPE_STRING, &n,
3487 DBUS_TYPE_BOOLEAN, &cleanup,
3492 if (!dbus_message_get_args(reply, &error,
3493 DBUS_TYPE_OBJECT_PATH, &path,
3494 DBUS_TYPE_INVALID)) {
3495 log_error("Failed to parse reply: %s", bus_error_message(&error));
3496 dbus_error_free(&error);
3500 dbus_message_unref(reply);
3503 r = bus_method_call_with_reply (
3505 "org.freedesktop.systemd1",
3507 "org.freedesktop.DBus.Properties",
3511 DBUS_TYPE_STRING, &interface,
3512 DBUS_TYPE_STRING, &property,
3517 if (!dbus_message_iter_init(reply, &iter) ||
3518 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3519 log_error("Failed to parse reply.");
3523 dbus_message_iter_recurse(&iter, &sub);
3525 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3526 log_error("Failed to parse reply.");
3530 dbus_message_iter_get_basic(&sub, &id);
3538 static int delete_snapshot(DBusConnection *bus, char **args) {
3543 STRV_FOREACH(name, args+1) {
3544 _cleanup_free_ char *n = NULL;
3547 n = snapshot_name_mangle(*name);
3551 r = bus_method_call_with_reply(
3553 "org.freedesktop.systemd1",
3554 "/org/freedesktop/systemd1",
3555 "org.freedesktop.systemd1.Manager",
3559 DBUS_TYPE_STRING, &n,
3568 static int daemon_reload(DBusConnection *bus, char **args) {
3573 if (arg_action == ACTION_RELOAD)
3575 else if (arg_action == ACTION_REEXEC)
3576 method = "Reexecute";
3578 assert(arg_action == ACTION_SYSTEMCTL);
3581 streq(args[0], "clear-jobs") ||
3582 streq(args[0], "cancel") ? "ClearJobs" :
3583 streq(args[0], "daemon-reexec") ? "Reexecute" :
3584 streq(args[0], "reset-failed") ? "ResetFailed" :
3585 streq(args[0], "halt") ? "Halt" :
3586 streq(args[0], "poweroff") ? "PowerOff" :
3587 streq(args[0], "reboot") ? "Reboot" :
3588 streq(args[0], "kexec") ? "KExec" :
3589 streq(args[0], "exit") ? "Exit" :
3590 /* "daemon-reload" */ "Reload";
3593 r = bus_method_call_with_reply(
3595 "org.freedesktop.systemd1",
3596 "/org/freedesktop/systemd1",
3597 "org.freedesktop.systemd1.Manager",
3603 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
3604 /* There's always a fallback possible for
3605 * legacy actions. */
3607 else if (r == -ETIMEDOUT && streq(method, "Reexecute"))
3608 /* On reexecution, we expect a disconnect, not
3612 log_error("Failed to issue method call: %s", bus_error_message(&error));
3614 dbus_error_free(&error);
3618 static int reset_failed(DBusConnection *bus, char **args) {
3622 if (strv_length(args) <= 1)
3623 return daemon_reload(bus, args);
3625 STRV_FOREACH(name, args+1) {
3626 _cleanup_free_ char *n;
3628 n = unit_name_mangle(*name);
3632 r = bus_method_call_with_reply(
3634 "org.freedesktop.systemd1",
3635 "/org/freedesktop/systemd1",
3636 "org.freedesktop.systemd1.Manager",
3640 DBUS_TYPE_STRING, &n,
3649 static int show_enviroment(DBusConnection *bus, char **args) {
3650 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3651 DBusMessageIter iter, sub, sub2;
3654 *interface = "org.freedesktop.systemd1.Manager",
3655 *property = "Environment";
3657 pager_open_if_enabled();
3659 r = bus_method_call_with_reply(
3661 "org.freedesktop.systemd1",
3662 "/org/freedesktop/systemd1",
3663 "org.freedesktop.DBus.Properties",
3667 DBUS_TYPE_STRING, &interface,
3668 DBUS_TYPE_STRING, &property,
3673 if (!dbus_message_iter_init(reply, &iter) ||
3674 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3675 log_error("Failed to parse reply.");
3679 dbus_message_iter_recurse(&iter, &sub);
3681 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3682 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3683 log_error("Failed to parse reply.");
3687 dbus_message_iter_recurse(&sub, &sub2);
3689 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3692 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3693 log_error("Failed to parse reply.");
3697 dbus_message_iter_get_basic(&sub2, &text);
3700 dbus_message_iter_next(&sub2);
3706 static int switch_root(DBusConnection *bus, char **args) {
3709 _cleanup_free_ char *init = NULL;
3711 l = strv_length(args);
3712 if (l < 2 || l > 3) {
3713 log_error("Wrong number of arguments.");
3720 init = strdup(args[2]);
3722 parse_env_file("/proc/cmdline", WHITESPACE,
3732 log_debug("switching root - root: %s; init: %s", root, init);
3734 return bus_method_call_with_reply(
3736 "org.freedesktop.systemd1",
3737 "/org/freedesktop/systemd1",
3738 "org.freedesktop.systemd1.Manager",
3742 DBUS_TYPE_STRING, &root,
3743 DBUS_TYPE_STRING, &init,
3747 static int set_environment(DBusConnection *bus, char **args) {
3748 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
3751 DBusMessageIter iter;
3757 dbus_error_init(&error);
3759 method = streq(args[0], "set-environment")
3761 : "UnsetEnvironment";
3763 m = dbus_message_new_method_call(
3764 "org.freedesktop.systemd1",
3765 "/org/freedesktop/systemd1",
3766 "org.freedesktop.systemd1.Manager",
3771 dbus_message_iter_init_append(m, &iter);
3773 r = bus_append_strv_iter(&iter, args + 1);
3777 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3779 log_error("Failed to issue method call: %s", bus_error_message(&error));
3780 dbus_error_free(&error);
3787 static int enable_sysv_units(char **args) {
3790 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
3791 const char *verb = args[0];
3792 unsigned f = 1, t = 1;
3795 if (arg_scope != UNIT_FILE_SYSTEM)
3798 if (!streq(verb, "enable") &&
3799 !streq(verb, "disable") &&
3800 !streq(verb, "is-enabled"))
3803 /* Processes all SysV units, and reshuffles the array so that
3804 * afterwards only the native units remain */
3807 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
3812 for (f = 1; args[f]; f++) {
3815 bool found_native = false, found_sysv;
3817 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3818 char **k, *l, *q = NULL;
3825 if (!endswith(name, ".service"))
3828 if (path_is_absolute(name))
3831 STRV_FOREACH(k, paths.unit_path) {
3834 if (!isempty(arg_root))
3835 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3837 asprintf(&p, "%s/%s", *k, name);
3844 found_native = access(p, F_OK) >= 0;
3855 if (!isempty(arg_root))
3856 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3858 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3864 p[strlen(p) - sizeof(".service") + 1] = 0;
3865 found_sysv = access(p, F_OK) >= 0;
3872 /* Mark this entry, so that we don't try enabling it as native unit */
3873 args[f] = (char*) "";
3875 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3877 if (!isempty(arg_root))
3878 argv[c++] = q = strappend("--root=", arg_root);
3880 argv[c++] = path_get_file_name(p);
3882 streq(verb, "enable") ? "on" :
3883 streq(verb, "disable") ? "off" : "--level=5";
3886 l = strv_join((char**)argv, " ");
3894 log_info("Executing %s", l);
3899 log_error("Failed to fork: %m");
3904 } else if (pid == 0) {
3907 execv(argv[0], (char**) argv);
3908 _exit(EXIT_FAILURE);
3914 j = wait_for_terminate(pid, &status);
3916 log_error("Failed to wait for child: %s", strerror(-r));
3921 if (status.si_code == CLD_EXITED) {
3922 if (streq(verb, "is-enabled")) {
3923 if (status.si_status == 0) {
3932 } else if (status.si_status != 0) {
3943 lookup_paths_free(&paths);
3945 /* Drop all SysV units */
3946 for (f = 1, t = 1; args[f]; f++) {
3948 if (isempty(args[f]))
3951 args[t++] = args[f];
3960 static int mangle_names(char **original_names, char ***mangled_names) {
3961 char **i, **l, **name;
3963 l = new(char*, strv_length(original_names) + 1);
3968 STRV_FOREACH(name, original_names) {
3970 /* When enabling units qualified path names are OK,
3971 * too, hence allow them explicitly. */
3976 *i = unit_name_mangle(*name);
3992 static int enable_unit(DBusConnection *bus, char **args) {
3993 const char *verb = args[0];
3994 UnitFileChange *changes = NULL;
3995 unsigned n_changes = 0, i;
3996 int carries_install_info = -1;
3997 DBusMessage *m = NULL, *reply = NULL;
4000 char **mangled_names = NULL;
4002 r = enable_sysv_units(args);
4009 dbus_error_init(&error);
4011 if (!bus || avoid_bus()) {
4012 if (streq(verb, "enable")) {
4013 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4014 carries_install_info = r;
4015 } else if (streq(verb, "disable"))
4016 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4017 else if (streq(verb, "reenable")) {
4018 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4019 carries_install_info = r;
4020 } else if (streq(verb, "link"))
4021 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4022 else if (streq(verb, "preset")) {
4023 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4024 carries_install_info = r;
4025 } else if (streq(verb, "mask"))
4026 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4027 else if (streq(verb, "unmask"))
4028 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4030 assert_not_reached("Unknown verb");
4033 log_error("Operation failed: %s", strerror(-r));
4038 for (i = 0; i < n_changes; i++) {
4039 if (changes[i].type == UNIT_FILE_SYMLINK)
4040 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4042 log_info("rm '%s'", changes[i].path);
4049 bool send_force = true, expect_carries_install_info = false;
4051 DBusMessageIter iter, sub, sub2;
4053 if (streq(verb, "enable")) {
4054 method = "EnableUnitFiles";
4055 expect_carries_install_info = true;
4056 } else if (streq(verb, "disable")) {
4057 method = "DisableUnitFiles";
4059 } else if (streq(verb, "reenable")) {
4060 method = "ReenableUnitFiles";
4061 expect_carries_install_info = true;
4062 } else if (streq(verb, "link"))
4063 method = "LinkUnitFiles";
4064 else if (streq(verb, "preset")) {
4065 method = "PresetUnitFiles";
4066 expect_carries_install_info = true;
4067 } else if (streq(verb, "mask"))
4068 method = "MaskUnitFiles";
4069 else if (streq(verb, "unmask")) {
4070 method = "UnmaskUnitFiles";
4073 assert_not_reached("Unknown verb");
4075 m = dbus_message_new_method_call(
4076 "org.freedesktop.systemd1",
4077 "/org/freedesktop/systemd1",
4078 "org.freedesktop.systemd1.Manager",
4085 dbus_message_iter_init_append(m, &iter);
4087 r = mangle_names(args+1, &mangled_names);
4091 r = bus_append_strv_iter(&iter, mangled_names);
4093 log_error("Failed to append unit files.");
4098 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4099 log_error("Failed to append runtime boolean.");
4107 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4108 log_error("Failed to append force boolean.");
4114 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4116 log_error("Failed to issue method call: %s", bus_error_message(&error));
4121 if (!dbus_message_iter_init(reply, &iter)) {
4122 log_error("Failed to initialize iterator.");
4126 if (expect_carries_install_info) {
4127 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4129 log_error("Failed to parse reply.");
4133 carries_install_info = b;
4136 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4137 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4138 log_error("Failed to parse reply.");
4143 dbus_message_iter_recurse(&iter, &sub);
4144 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4145 const char *type, *path, *source;
4147 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4148 log_error("Failed to parse reply.");
4153 dbus_message_iter_recurse(&sub, &sub2);
4155 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4156 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4157 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4158 log_error("Failed to parse reply.");
4164 if (streq(type, "symlink"))
4165 log_info("ln -s '%s' '%s'", source, path);
4167 log_info("rm '%s'", path);
4170 dbus_message_iter_next(&sub);
4173 /* Try to reload if enabeld */
4175 r = daemon_reload(bus, args);
4178 if (carries_install_info == 0)
4180 "The unit files have no [Install] section. They are not meant to be enabled\n"
4181 "using systemctl.\n"
4182 "Possible reasons for having this kind of units are:\n"
4183 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4184 " .wants/ or .requires/ directory.\n"
4185 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4186 " a requirement dependency on it.\n"
4187 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4188 " D-Bus, udev, scripted systemctl call, ...).\n");
4192 dbus_message_unref(m);
4195 dbus_message_unref(reply);
4197 unit_file_changes_free(changes, n_changes);
4199 dbus_error_free(&error);
4201 strv_free(mangled_names);
4206 static int unit_is_enabled(DBusConnection *bus, char **args) {
4209 DBusMessage *reply = NULL;
4213 dbus_error_init(&error);
4215 r = enable_sysv_units(args);
4221 if (!bus || avoid_bus()) {
4223 STRV_FOREACH(name, args+1) {
4224 UnitFileState state;
4226 state = unit_file_get_state(arg_scope, arg_root, *name);
4232 if (state == UNIT_FILE_ENABLED ||
4233 state == UNIT_FILE_ENABLED_RUNTIME ||
4234 state == UNIT_FILE_STATIC)
4238 puts(unit_file_state_to_string(state));
4242 STRV_FOREACH(name, args+1) {
4245 r = bus_method_call_with_reply (
4247 "org.freedesktop.systemd1",
4248 "/org/freedesktop/systemd1",
4249 "org.freedesktop.systemd1.Manager",
4253 DBUS_TYPE_STRING, name,
4258 if (!dbus_message_get_args(reply, &error,
4259 DBUS_TYPE_STRING, &s,
4260 DBUS_TYPE_INVALID)) {
4261 log_error("Failed to parse reply: %s", bus_error_message(&error));
4266 dbus_message_unref(reply);
4269 if (streq(s, "enabled") ||
4270 streq(s, "enabled-runtime") ||
4279 r = enabled ? 0 : 1;
4283 dbus_message_unref(reply);
4285 dbus_error_free(&error);
4289 static int systemctl_help(void) {
4291 pager_open_if_enabled();
4293 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4294 "Query or send control commands to the systemd manager.\n\n"
4295 " -h --help Show this help\n"
4296 " --version Show package version\n"
4297 " -t --type=TYPE List only units of a particular type\n"
4298 " -p --property=NAME Show only properties by this name\n"
4299 " -a --all Show all units/properties, including dead/empty ones\n"
4300 " --failed Show only failed units\n"
4301 " --full Don't ellipsize unit names on output\n"
4302 " --fail When queueing a new job, fail if conflicting jobs are\n"
4304 " --ignore-dependencies\n"
4305 " When queueing a new job, ignore all its dependencies\n"
4306 " -i --ignore-inhibitors\n"
4307 " When shutting down or sleeping, ignore inhibitors\n"
4308 " --kill-who=WHO Who to send signal to\n"
4309 " -s --signal=SIGNAL Which signal to send\n"
4310 " -H --host=[USER@]HOST\n"
4311 " Show information for remote host\n"
4312 " -P --privileged Acquire privileges before execution\n"
4313 " -q --quiet Suppress output\n"
4314 " --no-block Do not wait until operation finished\n"
4315 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4316 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4318 " --no-legend Do not print a legend (column headers and hints)\n"
4319 " --no-pager Do not pipe output into a pager\n"
4320 " --no-ask-password\n"
4321 " Do not ask for system passwords\n"
4322 " --order When generating graph for dot, show only order\n"
4323 " --require When generating graph for dot, show only requirement\n"
4324 " --system Connect to system manager\n"
4325 " --user Connect to user service manager\n"
4326 " --global Enable/disable unit files globally\n"
4327 " -f --force When enabling unit files, override existing symlinks\n"
4328 " When shutting down, execute action immediately\n"
4329 " --root=PATH Enable unit files in the specified root directory\n"
4330 " --runtime Enable unit files only temporarily until next reboot\n"
4331 " -n --lines=INTEGER Journal entries to show\n"
4332 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4333 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4335 " list-units List loaded units\n"
4336 " start [NAME...] Start (activate) one or more units\n"
4337 " stop [NAME...] Stop (deactivate) one or more units\n"
4338 " reload [NAME...] Reload one or more units\n"
4339 " restart [NAME...] Start or restart one or more units\n"
4340 " try-restart [NAME...] Restart one or more units if active\n"
4341 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4342 " otherwise start or restart\n"
4343 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4344 " otherwise restart if active\n"
4345 " isolate [NAME] Start one unit and stop all others\n"
4346 " kill [NAME...] Send signal to processes of a unit\n"
4347 " is-active [NAME...] Check whether units are active\n"
4348 " is-failed [NAME...] Check whether units are failed\n"
4349 " status [NAME...|PID...] Show runtime status of one or more units\n"
4350 " show [NAME...|JOB...] Show properties of one or more\n"
4351 " units/jobs or the manager\n"
4352 " help [NAME...|PID...] Show manual for one or more units\n"
4353 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4355 " get-cgroup-attr [NAME] [ATTR] ...\n"
4356 " Get control group attrubute\n"
4357 " set-cgroup-attr [NAME] [ATTR] [VALUE] ...\n"
4358 " Set control group attribute\n"
4359 " unset-cgroup-attr [NAME] [ATTR...]\n"
4360 " Unset control group attribute\n"
4361 " set-cgroup [NAME] [CGROUP...] Add unit to a control group\n"
4362 " unset-cgroup [NAME] [CGROUP...] Remove unit from a control group\n"
4363 " load [NAME...] Load one or more units\n"
4364 " list-dependencies [NAME] Recursively show units which are required\n"
4365 " or wanted by this unit\n\n"
4366 "Unit File Commands:\n"
4367 " list-unit-files List installed unit files\n"
4368 " enable [NAME...] Enable one or more unit files\n"
4369 " disable [NAME...] Disable one or more unit files\n"
4370 " reenable [NAME...] Reenable one or more unit files\n"
4371 " preset [NAME...] Enable/disable one or more unit files\n"
4372 " based on preset configuration\n"
4373 " mask [NAME...] Mask one or more units\n"
4374 " unmask [NAME...] Unmask one or more units\n"
4375 " link [PATH...] Link one or more units files into\n"
4376 " the search path\n"
4377 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4379 " list-jobs List jobs\n"
4380 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4381 "Status Commands:\n"
4382 " dump Dump server status\n"
4383 " dot Dump dependency graph for dot(1)\n\n"
4384 "Snapshot Commands:\n"
4385 " snapshot [NAME] Create a snapshot\n"
4386 " delete [NAME...] Remove one or more snapshots\n\n"
4387 "Environment Commands:\n"
4388 " show-environment Dump environment\n"
4389 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4390 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4391 "Manager Lifecycle Commands:\n"
4392 " daemon-reload Reload systemd manager configuration\n"
4393 " daemon-reexec Reexecute systemd manager\n\n"
4394 "System Commands:\n"
4395 " default Enter system default mode\n"
4396 " rescue Enter system rescue mode\n"
4397 " emergency Enter system emergency mode\n"
4398 " halt Shut down and halt the system\n"
4399 " poweroff Shut down and power-off the system\n"
4400 " reboot Shut down and reboot the system\n"
4401 " kexec Shut down and reboot the system with kexec\n"
4402 " exit Request user instance exit\n"
4403 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4404 " suspend Suspend the system\n"
4405 " hibernate Hibernate the system\n"
4406 " hybrid-sleep Hibernate and suspend the system\n",
4407 program_invocation_short_name);
4412 static int halt_help(void) {
4414 printf("%s [OPTIONS...]\n\n"
4415 "%s the system.\n\n"
4416 " --help Show this help\n"
4417 " --halt Halt the machine\n"
4418 " -p --poweroff Switch off the machine\n"
4419 " --reboot Reboot the machine\n"
4420 " -f --force Force immediate halt/power-off/reboot\n"
4421 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4422 " -d --no-wtmp Don't write wtmp record\n"
4423 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4424 program_invocation_short_name,
4425 arg_action == ACTION_REBOOT ? "Reboot" :
4426 arg_action == ACTION_POWEROFF ? "Power off" :
4432 static int shutdown_help(void) {
4434 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4435 "Shut down the system.\n\n"
4436 " --help Show this help\n"
4437 " -H --halt Halt the machine\n"
4438 " -P --poweroff Power-off the machine\n"
4439 " -r --reboot Reboot the machine\n"
4440 " -h Equivalent to --poweroff, overridden by --halt\n"
4441 " -k Don't halt/power-off/reboot, just send warnings\n"
4442 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4443 " -c Cancel a pending shutdown\n",
4444 program_invocation_short_name);
4449 static int telinit_help(void) {
4451 printf("%s [OPTIONS...] {COMMAND}\n\n"
4452 "Send control commands to the init daemon.\n\n"
4453 " --help Show this help\n"
4454 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4456 " 0 Power-off the machine\n"
4457 " 6 Reboot the machine\n"
4458 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4459 " 1, s, S Enter rescue mode\n"
4460 " q, Q Reload init daemon configuration\n"
4461 " u, U Reexecute init daemon\n",
4462 program_invocation_short_name);
4467 static int runlevel_help(void) {
4469 printf("%s [OPTIONS...]\n\n"
4470 "Prints the previous and current runlevel of the init system.\n\n"
4471 " --help Show this help\n",
4472 program_invocation_short_name);
4477 static int help_types(void) {
4480 puts("Available unit types:");
4481 for(i = UNIT_SERVICE; i < _UNIT_TYPE_MAX; i++)
4482 if (unit_type_table[i])
4483 puts(unit_type_table[i]);
4485 puts("\nAvailable unit load states: ");
4486 for(i = UNIT_STUB; i < _UNIT_LOAD_STATE_MAX; i++)
4487 if (unit_type_table[i])
4488 puts(unit_load_state_table[i]);
4493 static int systemctl_parse_argv(int argc, char *argv[]) {
4497 ARG_IGNORE_DEPENDENCIES,
4512 ARG_NO_ASK_PASSWORD,
4518 static const struct option options[] = {
4519 { "help", no_argument, NULL, 'h' },
4520 { "version", no_argument, NULL, ARG_VERSION },
4521 { "type", required_argument, NULL, 't' },
4522 { "property", required_argument, NULL, 'p' },
4523 { "all", no_argument, NULL, 'a' },
4524 { "failed", no_argument, NULL, ARG_FAILED },
4525 { "full", no_argument, NULL, ARG_FULL },
4526 { "fail", no_argument, NULL, ARG_FAIL },
4527 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4528 { "ignore-inhibitors", no_argument, NULL, 'i' },
4529 { "user", no_argument, NULL, ARG_USER },
4530 { "system", no_argument, NULL, ARG_SYSTEM },
4531 { "global", no_argument, NULL, ARG_GLOBAL },
4532 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4533 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4534 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4535 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4536 { "quiet", no_argument, NULL, 'q' },
4537 { "order", no_argument, NULL, ARG_ORDER },
4538 { "require", no_argument, NULL, ARG_REQUIRE },
4539 { "root", required_argument, NULL, ARG_ROOT },
4540 { "force", no_argument, NULL, ARG_FORCE },
4541 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4542 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4543 { "signal", required_argument, NULL, 's' },
4544 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4545 { "host", required_argument, NULL, 'H' },
4546 { "privileged",no_argument, NULL, 'P' },
4547 { "runtime", no_argument, NULL, ARG_RUNTIME },
4548 { "lines", required_argument, NULL, 'n' },
4549 { "output", required_argument, NULL, 'o' },
4550 { NULL, 0, NULL, 0 }
4558 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:i", options, NULL)) >= 0) {
4567 puts(PACKAGE_STRING);
4568 puts(SYSTEMD_FEATURES);
4572 if (streq(optarg, "help")) {
4577 if (unit_type_from_string(optarg) >= 0) {
4581 if (unit_load_state_from_string(optarg) >= 0) {
4582 arg_load_state = optarg;
4585 log_error("Unkown unit type or load state '%s'.",
4587 log_info("Use -t help to see a list of allowed values.");
4592 if (!(l = strv_append(arg_property, optarg)))
4595 strv_free(arg_property);
4598 /* If the user asked for a particular
4599 * property, show it to him, even if it is
4610 arg_job_mode = "fail";
4613 case ARG_IGNORE_DEPENDENCIES:
4614 arg_job_mode = "ignore-dependencies";
4618 arg_scope = UNIT_FILE_USER;
4622 arg_scope = UNIT_FILE_SYSTEM;
4626 arg_scope = UNIT_FILE_GLOBAL;
4630 arg_no_block = true;
4634 arg_no_legend = true;
4638 arg_no_pager = true;
4646 arg_dot = DOT_ORDER;
4650 arg_dot = DOT_REQUIRE;
4678 arg_no_reload = true;
4682 arg_kill_who = optarg;
4686 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4687 log_error("Failed to parse signal string %s.", optarg);
4692 case ARG_NO_ASK_PASSWORD:
4693 arg_ask_password = false;
4697 arg_transport = TRANSPORT_POLKIT;
4701 arg_transport = TRANSPORT_SSH;
4710 if (safe_atou(optarg, &arg_lines) < 0) {
4711 log_error("Failed to parse lines '%s'", optarg);
4717 arg_output = output_mode_from_string(optarg);
4718 if (arg_output < 0) {
4719 log_error("Unknown output '%s'.", optarg);
4725 arg_ignore_inhibitors = true;
4732 log_error("Unknown option code '%c'.", c);
4737 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4738 log_error("Cannot access user instance remotely.");
4745 static int halt_parse_argv(int argc, char *argv[]) {
4754 static const struct option options[] = {
4755 { "help", no_argument, NULL, ARG_HELP },
4756 { "halt", no_argument, NULL, ARG_HALT },
4757 { "poweroff", no_argument, NULL, 'p' },
4758 { "reboot", no_argument, NULL, ARG_REBOOT },
4759 { "force", no_argument, NULL, 'f' },
4760 { "wtmp-only", no_argument, NULL, 'w' },
4761 { "no-wtmp", no_argument, NULL, 'd' },
4762 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4763 { NULL, 0, NULL, 0 }
4771 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4772 if (runlevel == '0' || runlevel == '6')
4775 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4783 arg_action = ACTION_HALT;
4787 if (arg_action != ACTION_REBOOT)
4788 arg_action = ACTION_POWEROFF;
4792 arg_action = ACTION_REBOOT;
4814 /* Compatibility nops */
4821 log_error("Unknown option code '%c'.", c);
4826 if (optind < argc) {
4827 log_error("Too many arguments.");
4834 static int parse_time_spec(const char *t, usec_t *_u) {
4838 if (streq(t, "now"))
4840 else if (!strchr(t, ':')) {
4843 if (safe_atou64(t, &u) < 0)
4846 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4855 hour = strtol(t, &e, 10);
4856 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4859 minute = strtol(e+1, &e, 10);
4860 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4863 n = now(CLOCK_REALTIME);
4864 s = (time_t) (n / USEC_PER_SEC);
4867 assert_se(localtime_r(&s, &tm));
4869 tm.tm_hour = (int) hour;
4870 tm.tm_min = (int) minute;
4873 assert_se(s = mktime(&tm));
4875 *_u = (usec_t) s * USEC_PER_SEC;
4878 *_u += USEC_PER_DAY;
4884 static int shutdown_parse_argv(int argc, char *argv[]) {
4891 static const struct option options[] = {
4892 { "help", no_argument, NULL, ARG_HELP },
4893 { "halt", no_argument, NULL, 'H' },
4894 { "poweroff", no_argument, NULL, 'P' },
4895 { "reboot", no_argument, NULL, 'r' },
4896 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4897 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4898 { NULL, 0, NULL, 0 }
4906 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4914 arg_action = ACTION_HALT;
4918 arg_action = ACTION_POWEROFF;
4923 arg_action = ACTION_KEXEC;
4925 arg_action = ACTION_REBOOT;
4929 arg_action = ACTION_KEXEC;
4933 if (arg_action != ACTION_HALT)
4934 arg_action = ACTION_POWEROFF;
4947 /* Compatibility nops */
4951 arg_action = ACTION_CANCEL_SHUTDOWN;
4958 log_error("Unknown option code '%c'.", c);
4963 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
4964 r = parse_time_spec(argv[optind], &arg_when);
4966 log_error("Failed to parse time specification: %s", argv[optind]);
4970 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4972 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
4973 /* No time argument for shutdown cancel */
4974 arg_wall = argv + optind;
4975 else if (argc > optind + 1)
4976 /* We skip the time argument */
4977 arg_wall = argv + optind + 1;
4984 static int telinit_parse_argv(int argc, char *argv[]) {
4991 static const struct option options[] = {
4992 { "help", no_argument, NULL, ARG_HELP },
4993 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4994 { NULL, 0, NULL, 0 }
4997 static const struct {
5001 { '0', ACTION_POWEROFF },
5002 { '6', ACTION_REBOOT },
5003 { '1', ACTION_RESCUE },
5004 { '2', ACTION_RUNLEVEL2 },
5005 { '3', ACTION_RUNLEVEL3 },
5006 { '4', ACTION_RUNLEVEL4 },
5007 { '5', ACTION_RUNLEVEL5 },
5008 { 's', ACTION_RESCUE },
5009 { 'S', ACTION_RESCUE },
5010 { 'q', ACTION_RELOAD },
5011 { 'Q', ACTION_RELOAD },
5012 { 'u', ACTION_REEXEC },
5013 { 'U', ACTION_REEXEC }
5022 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5037 log_error("Unknown option code '%c'.", c);
5042 if (optind >= argc) {
5047 if (optind + 1 < argc) {
5048 log_error("Too many arguments.");
5052 if (strlen(argv[optind]) != 1) {
5053 log_error("Expected single character argument.");
5057 for (i = 0; i < ELEMENTSOF(table); i++)
5058 if (table[i].from == argv[optind][0])
5061 if (i >= ELEMENTSOF(table)) {
5062 log_error("Unknown command '%s'.", argv[optind]);
5066 arg_action = table[i].to;
5073 static int runlevel_parse_argv(int argc, char *argv[]) {
5079 static const struct option options[] = {
5080 { "help", no_argument, NULL, ARG_HELP },
5081 { NULL, 0, NULL, 0 }
5089 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5100 log_error("Unknown option code '%c'.", c);
5105 if (optind < argc) {
5106 log_error("Too many arguments.");
5113 static int parse_argv(int argc, char *argv[]) {
5117 if (program_invocation_short_name) {
5119 if (strstr(program_invocation_short_name, "halt")) {
5120 arg_action = ACTION_HALT;
5121 return halt_parse_argv(argc, argv);
5122 } else if (strstr(program_invocation_short_name, "poweroff")) {
5123 arg_action = ACTION_POWEROFF;
5124 return halt_parse_argv(argc, argv);
5125 } else if (strstr(program_invocation_short_name, "reboot")) {
5127 arg_action = ACTION_KEXEC;
5129 arg_action = ACTION_REBOOT;
5130 return halt_parse_argv(argc, argv);
5131 } else if (strstr(program_invocation_short_name, "shutdown")) {
5132 arg_action = ACTION_POWEROFF;
5133 return shutdown_parse_argv(argc, argv);
5134 } else if (strstr(program_invocation_short_name, "init")) {
5136 if (sd_booted() > 0) {
5137 arg_action = ACTION_INVALID;
5138 return telinit_parse_argv(argc, argv);
5140 /* Hmm, so some other init system is
5141 * running, we need to forward this
5142 * request to it. For now we simply
5143 * guess that it is Upstart. */
5145 execv("/lib/upstart/telinit", argv);
5147 log_error("Couldn't find an alternative telinit implementation to spawn.");
5151 } else if (strstr(program_invocation_short_name, "runlevel")) {
5152 arg_action = ACTION_RUNLEVEL;
5153 return runlevel_parse_argv(argc, argv);
5157 arg_action = ACTION_SYSTEMCTL;
5158 return systemctl_parse_argv(argc, argv);
5161 static int action_to_runlevel(void) {
5163 static const char table[_ACTION_MAX] = {
5164 [ACTION_HALT] = '0',
5165 [ACTION_POWEROFF] = '0',
5166 [ACTION_REBOOT] = '6',
5167 [ACTION_RUNLEVEL2] = '2',
5168 [ACTION_RUNLEVEL3] = '3',
5169 [ACTION_RUNLEVEL4] = '4',
5170 [ACTION_RUNLEVEL5] = '5',
5171 [ACTION_RESCUE] = '1'
5174 assert(arg_action < _ACTION_MAX);
5176 return table[arg_action];
5179 static int talk_upstart(void) {
5180 DBusMessage *m = NULL, *reply = NULL;
5182 int previous, rl, r;
5184 env1_buf[] = "RUNLEVEL=X",
5185 env2_buf[] = "PREVLEVEL=X";
5186 char *env1 = env1_buf, *env2 = env2_buf;
5187 const char *emit = "runlevel";
5188 dbus_bool_t b_false = FALSE;
5189 DBusMessageIter iter, sub;
5190 DBusConnection *bus;
5192 dbus_error_init(&error);
5194 if (!(rl = action_to_runlevel()))
5197 if (utmp_get_runlevel(&previous, NULL) < 0)
5200 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5201 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5206 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5211 if ((r = bus_check_peercred(bus)) < 0) {
5212 log_error("Failed to verify owner of bus.");
5216 if (!(m = dbus_message_new_method_call(
5217 "com.ubuntu.Upstart",
5218 "/com/ubuntu/Upstart",
5219 "com.ubuntu.Upstart0_6",
5222 log_error("Could not allocate message.");
5227 dbus_message_iter_init_append(m, &iter);
5229 env1_buf[sizeof(env1_buf)-2] = rl;
5230 env2_buf[sizeof(env2_buf)-2] = previous;
5232 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5233 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5234 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5235 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5236 !dbus_message_iter_close_container(&iter, &sub) ||
5237 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5238 log_error("Could not append arguments to message.");
5243 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5245 if (bus_error_is_no_service(&error)) {
5250 log_error("Failed to issue method call: %s", bus_error_message(&error));
5259 dbus_message_unref(m);
5262 dbus_message_unref(reply);
5265 dbus_connection_flush(bus);
5266 dbus_connection_close(bus);
5267 dbus_connection_unref(bus);
5270 dbus_error_free(&error);
5275 static int talk_initctl(void) {
5276 struct init_request request;
5280 if (!(rl = action_to_runlevel()))
5284 request.magic = INIT_MAGIC;
5285 request.sleeptime = 0;
5286 request.cmd = INIT_CMD_RUNLVL;
5287 request.runlevel = rl;
5289 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5291 if (errno == ENOENT)
5294 log_error("Failed to open "INIT_FIFO": %m");
5299 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5300 close_nointr_nofail(fd);
5303 log_error("Failed to write to "INIT_FIFO": %m");
5304 return errno ? -errno : -EIO;
5310 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5312 static const struct {
5320 int (* const dispatch)(DBusConnection *bus, char **args);
5322 { "list-units", LESS, 1, list_units },
5323 { "list-unit-files", EQUAL, 1, list_unit_files },
5324 { "list-jobs", EQUAL, 1, list_jobs },
5325 { "clear-jobs", EQUAL, 1, daemon_reload },
5326 { "load", MORE, 2, load_unit },
5327 { "cancel", MORE, 2, cancel_job },
5328 { "start", MORE, 2, start_unit },
5329 { "stop", MORE, 2, start_unit },
5330 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5331 { "reload", MORE, 2, start_unit },
5332 { "restart", MORE, 2, start_unit },
5333 { "try-restart", MORE, 2, start_unit },
5334 { "reload-or-restart", MORE, 2, start_unit },
5335 { "reload-or-try-restart", MORE, 2, start_unit },
5336 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5337 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5338 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5339 { "isolate", EQUAL, 2, start_unit },
5340 { "set-cgroup", MORE, 2, set_cgroup },
5341 { "unset-cgroup", MORE, 2, set_cgroup },
5342 { "get-cgroup-attr", MORE, 2, get_cgroup_attr },
5343 { "set-cgroup-attr", MORE, 2, set_cgroup_attr },
5344 { "unset-cgroup-attr", MORE, 2, set_cgroup },
5345 { "kill", MORE, 2, kill_unit },
5346 { "is-active", MORE, 2, check_unit_active },
5347 { "check", MORE, 2, check_unit_active },
5348 { "is-failed", MORE, 2, check_unit_failed },
5349 { "show", MORE, 1, show },
5350 { "status", MORE, 2, show },
5351 { "help", MORE, 2, show },
5352 { "dump", EQUAL, 1, dump },
5353 { "dot", EQUAL, 1, dot },
5354 { "snapshot", LESS, 2, snapshot },
5355 { "delete", MORE, 2, delete_snapshot },
5356 { "daemon-reload", EQUAL, 1, daemon_reload },
5357 { "daemon-reexec", EQUAL, 1, daemon_reload },
5358 { "show-environment", EQUAL, 1, show_enviroment },
5359 { "set-environment", MORE, 2, set_environment },
5360 { "unset-environment", MORE, 2, set_environment },
5361 { "halt", EQUAL, 1, start_special },
5362 { "poweroff", EQUAL, 1, start_special },
5363 { "reboot", EQUAL, 1, start_special },
5364 { "kexec", EQUAL, 1, start_special },
5365 { "suspend", EQUAL, 1, start_special },
5366 { "hibernate", EQUAL, 1, start_special },
5367 { "hybrid-sleep", EQUAL, 1, start_special },
5368 { "default", EQUAL, 1, start_special },
5369 { "rescue", EQUAL, 1, start_special },
5370 { "emergency", EQUAL, 1, start_special },
5371 { "exit", EQUAL, 1, start_special },
5372 { "reset-failed", MORE, 1, reset_failed },
5373 { "enable", MORE, 2, enable_unit },
5374 { "disable", MORE, 2, enable_unit },
5375 { "is-enabled", MORE, 2, unit_is_enabled },
5376 { "reenable", MORE, 2, enable_unit },
5377 { "preset", MORE, 2, enable_unit },
5378 { "mask", MORE, 2, enable_unit },
5379 { "unmask", MORE, 2, enable_unit },
5380 { "link", MORE, 2, enable_unit },
5381 { "switch-root", MORE, 2, switch_root },
5382 { "list-dependencies", LESS, 2, list_dependencies },
5392 left = argc - optind;
5395 /* Special rule: no arguments means "list-units" */
5398 if (streq(argv[optind], "help") && !argv[optind+1]) {
5399 log_error("This command expects one or more "
5400 "unit names. Did you mean --help?");
5404 for (i = 0; i < ELEMENTSOF(verbs); i++)
5405 if (streq(argv[optind], verbs[i].verb))
5408 if (i >= ELEMENTSOF(verbs)) {
5409 log_error("Unknown operation '%s'.", argv[optind]);
5414 switch (verbs[i].argc_cmp) {
5417 if (left != verbs[i].argc) {
5418 log_error("Invalid number of arguments.");
5425 if (left < verbs[i].argc) {
5426 log_error("Too few arguments.");
5433 if (left > verbs[i].argc) {
5434 log_error("Too many arguments.");
5441 assert_not_reached("Unknown comparison operator.");
5444 /* Require a bus connection for all operations but
5446 if (!streq(verbs[i].verb, "enable") &&
5447 !streq(verbs[i].verb, "disable") &&
5448 !streq(verbs[i].verb, "is-enabled") &&
5449 !streq(verbs[i].verb, "list-unit-files") &&
5450 !streq(verbs[i].verb, "reenable") &&
5451 !streq(verbs[i].verb, "preset") &&
5452 !streq(verbs[i].verb, "mask") &&
5453 !streq(verbs[i].verb, "unmask") &&
5454 !streq(verbs[i].verb, "link")) {
5456 if (running_in_chroot() > 0) {
5457 log_info("Running in chroot, ignoring request.");
5461 if (((!streq(verbs[i].verb, "reboot") &&
5462 !streq(verbs[i].verb, "halt") &&
5463 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5464 log_error("Failed to get D-Bus connection: %s",
5465 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5471 if (!bus && !avoid_bus()) {
5472 log_error("Failed to get D-Bus connection: %s",
5473 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5478 return verbs[i].dispatch(bus, argv + optind);
5481 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5483 struct msghdr msghdr;
5484 struct iovec iovec[2];
5485 union sockaddr_union sockaddr;
5486 struct sd_shutdown_command c;
5488 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5495 c.dry_run = dry_run;
5499 sockaddr.sa.sa_family = AF_UNIX;
5500 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5503 msghdr.msg_name = &sockaddr;
5504 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5507 iovec[0].iov_base = (char*) &c;
5508 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5510 if (isempty(message))
5511 msghdr.msg_iovlen = 1;
5513 iovec[1].iov_base = (char*) message;
5514 iovec[1].iov_len = strlen(message);
5515 msghdr.msg_iovlen = 2;
5517 msghdr.msg_iov = iovec;
5519 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5520 close_nointr_nofail(fd);
5524 close_nointr_nofail(fd);
5528 static int reload_with_fallback(DBusConnection *bus) {
5531 /* First, try systemd via D-Bus. */
5532 if (daemon_reload(bus, NULL) >= 0)
5536 /* Nothing else worked, so let's try signals */
5537 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5539 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5540 log_error("kill() failed: %m");
5547 static int start_with_fallback(DBusConnection *bus) {
5550 /* First, try systemd via D-Bus. */
5551 if (start_unit(bus, NULL) >= 0)
5555 /* Hmm, talking to systemd via D-Bus didn't work. Then
5556 * let's try to talk to Upstart via D-Bus. */
5557 if (talk_upstart() > 0)
5560 /* Nothing else worked, so let's try
5562 if (talk_initctl() > 0)
5565 log_error("Failed to talk to init daemon.");
5569 warn_wall(arg_action);
5573 static _noreturn_ void halt_now(enum action a) {
5575 /* Make sure C-A-D is handled by the kernel from this
5577 reboot(RB_ENABLE_CAD);
5582 log_info("Halting.");
5583 reboot(RB_HALT_SYSTEM);
5586 case ACTION_POWEROFF:
5587 log_info("Powering off.");
5588 reboot(RB_POWER_OFF);
5592 log_info("Rebooting.");
5593 reboot(RB_AUTOBOOT);
5597 assert_not_reached("Unknown halt action.");
5600 assert_not_reached("Uh? This shouldn't happen.");
5603 static int halt_main(DBusConnection *bus) {
5606 r = check_inhibitors(bus, arg_action);
5610 if (geteuid() != 0) {
5611 /* Try logind if we are a normal user and no special
5612 * mode applies. Maybe PolicyKit allows us to shutdown
5615 if (arg_when <= 0 &&
5618 (arg_action == ACTION_POWEROFF ||
5619 arg_action == ACTION_REBOOT)) {
5620 r = reboot_with_logind(bus, arg_action);
5625 log_error("Must be root.");
5632 m = strv_join(arg_wall, " ");
5633 r = send_shutdownd(arg_when,
5634 arg_action == ACTION_HALT ? 'H' :
5635 arg_action == ACTION_POWEROFF ? 'P' :
5636 arg_action == ACTION_KEXEC ? 'K' :
5644 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5646 char date[FORMAT_TIMESTAMP_MAX];
5648 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5649 format_timestamp(date, sizeof(date), arg_when));
5654 if (!arg_dry && !arg_force)
5655 return start_with_fallback(bus);
5658 if (sd_booted() > 0)
5659 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5661 r = utmp_put_shutdown();
5663 log_warning("Failed to write utmp record: %s", strerror(-r));
5670 halt_now(arg_action);
5671 /* We should never reach this. */
5675 static int runlevel_main(void) {
5676 int r, runlevel, previous;
5678 r = utmp_get_runlevel(&runlevel, &previous);
5685 previous <= 0 ? 'N' : previous,
5686 runlevel <= 0 ? 'N' : runlevel);
5691 int main(int argc, char*argv[]) {
5692 int r, retval = EXIT_FAILURE;
5693 DBusConnection *bus = NULL;
5696 dbus_error_init(&error);
5698 setlocale(LC_ALL, "");
5699 log_parse_environment();
5702 r = parse_argv(argc, argv);
5706 retval = EXIT_SUCCESS;
5710 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5711 * let's shortcut this */
5712 if (arg_action == ACTION_RUNLEVEL) {
5713 r = runlevel_main();
5714 retval = r < 0 ? EXIT_FAILURE : r;
5718 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5719 log_info("Running in chroot, ignoring request.");
5725 if (arg_transport == TRANSPORT_NORMAL)
5726 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5727 else if (arg_transport == TRANSPORT_POLKIT) {
5728 bus_connect_system_polkit(&bus, &error);
5729 private_bus = false;
5730 } else if (arg_transport == TRANSPORT_SSH) {
5731 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5732 private_bus = false;
5734 assert_not_reached("Uh, invalid transport...");
5737 switch (arg_action) {
5739 case ACTION_SYSTEMCTL:
5740 r = systemctl_main(bus, argc, argv, &error);
5744 case ACTION_POWEROFF:
5750 case ACTION_RUNLEVEL2:
5751 case ACTION_RUNLEVEL3:
5752 case ACTION_RUNLEVEL4:
5753 case ACTION_RUNLEVEL5:
5755 case ACTION_EMERGENCY:
5756 case ACTION_DEFAULT:
5757 r = start_with_fallback(bus);
5762 r = reload_with_fallback(bus);
5765 case ACTION_CANCEL_SHUTDOWN: {
5769 m = strv_join(arg_wall, " ");
5771 retval = EXIT_FAILURE;
5775 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
5777 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
5782 case ACTION_INVALID:
5783 case ACTION_RUNLEVEL:
5785 assert_not_reached("Unknown action");
5788 retval = r < 0 ? EXIT_FAILURE : r;
5792 dbus_connection_flush(bus);
5793 dbus_connection_close(bus);
5794 dbus_connection_unref(bus);
5797 dbus_error_free(&error);
5801 strv_free(arg_property);
5804 ask_password_agent_close();
5805 polkit_agent_close();