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"
71 static const char *arg_type = NULL;
72 static const char *arg_load_state = NULL;
73 static char **arg_property = NULL;
74 static bool arg_all = false;
75 static const char *arg_job_mode = "replace";
76 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
77 static bool arg_no_block = false;
78 static bool arg_no_legend = false;
79 static bool arg_no_pager = false;
80 static bool arg_no_wtmp = false;
81 static bool arg_no_wall = false;
82 static bool arg_no_reload = false;
83 static bool arg_ignore_inhibitors = false;
84 static bool arg_dry = false;
85 static bool arg_quiet = false;
86 static bool arg_full = false;
87 static int arg_force = 0;
88 static bool arg_ask_password = true;
89 static bool arg_failed = false;
90 static bool arg_runtime = false;
91 static char **arg_wall = NULL;
92 static const char *arg_kill_who = NULL;
93 static int arg_signal = SIGTERM;
94 static const char *arg_root = NULL;
95 static usec_t arg_when = 0;
117 ACTION_CANCEL_SHUTDOWN,
119 } arg_action = ACTION_SYSTEMCTL;
120 static enum transport {
124 } arg_transport = TRANSPORT_NORMAL;
125 static const char *arg_host = NULL;
126 static unsigned arg_lines = 10;
127 static OutputMode arg_output = OUTPUT_SHORT;
129 static bool private_bus = false;
131 static int daemon_reload(DBusConnection *bus, char **args);
132 static void halt_now(enum action a);
134 static void pager_open_if_enabled(void) {
142 static void ask_password_agent_open_if_enabled(void) {
144 /* Open the password agent as a child process if necessary */
146 if (!arg_ask_password)
149 if (arg_scope != UNIT_FILE_SYSTEM)
152 ask_password_agent_open();
156 static void polkit_agent_open_if_enabled(void) {
158 /* Open the polkit agent as a child process if necessary */
160 if (!arg_ask_password)
163 if (arg_scope != UNIT_FILE_SYSTEM)
170 static const char *ansi_highlight(bool b) {
175 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
178 static const char *ansi_highlight_red(bool b) {
183 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
186 static const char *ansi_highlight_green(bool b) {
191 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
194 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
197 if (!dbus_error_is_set(error))
200 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
201 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
202 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
203 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
204 return EXIT_NOPERMISSION;
206 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
207 return EXIT_NOTINSTALLED;
209 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
210 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
211 return EXIT_NOTIMPLEMENTED;
213 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
214 return EXIT_NOTCONFIGURED;
222 static void warn_wall(enum action a) {
223 static const char *table[_ACTION_MAX] = {
224 [ACTION_HALT] = "The system is going down for system halt NOW!",
225 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
226 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
227 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
228 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
229 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
230 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
237 _cleanup_free_ char *p;
239 p = strv_join(arg_wall, " ");
254 utmp_wall(table[a], NULL);
257 static bool avoid_bus(void) {
259 if (running_in_chroot() > 0)
262 if (sd_booted() <= 0)
265 if (!isempty(arg_root))
268 if (arg_scope == UNIT_FILE_GLOBAL)
274 static int compare_unit_info(const void *a, const void *b) {
276 const struct unit_info *u = a, *v = b;
278 d1 = strrchr(u->id, '.');
279 d2 = strrchr(v->id, '.');
284 r = strcasecmp(d1, d2);
289 return strcasecmp(u->id, v->id);
292 static bool output_show_unit(const struct unit_info *u) {
296 return streq(u->active_state, "failed");
298 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
299 streq(dot+1, arg_type))) &&
300 (!arg_load_state || streq(u->load_state, arg_load_state)) &&
301 (arg_all || !(streq(u->active_state, "inactive")
302 || u->following[0]) || u->job_id > 0);
305 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
306 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
307 const struct unit_info *u;
310 max_id_len = sizeof("UNIT")-1;
311 active_len = sizeof("ACTIVE")-1;
312 sub_len = sizeof("SUB")-1;
313 job_len = sizeof("JOB")-1;
316 for (u = unit_infos; u < unit_infos + c; u++) {
317 if (!output_show_unit(u))
320 max_id_len = MAX(max_id_len, strlen(u->id));
321 active_len = MAX(active_len, strlen(u->active_state));
322 sub_len = MAX(sub_len, strlen(u->sub_state));
323 if (u->job_id != 0) {
324 job_len = MAX(job_len, strlen(u->job_type));
331 id_len = MIN(max_id_len, 25u);
332 basic_len = 5 + id_len + 5 + active_len + sub_len;
334 basic_len += job_len + 1;
335 if (basic_len < (unsigned) columns()) {
336 unsigned extra_len, incr;
337 extra_len = columns() - basic_len;
338 /* Either UNIT already got 25, or is fully satisfied.
339 * Grant up to 25 to DESC now. */
340 incr = MIN(extra_len, 25u);
343 /* split the remaining space between UNIT and DESC,
344 * but do not give UNIT more than it needs. */
346 incr = MIN(extra_len / 2, max_id_len - id_len);
348 desc_len += extra_len - incr;
354 for (u = unit_infos; u < unit_infos + c; u++) {
355 char _cleanup_free_ *e = NULL;
356 const char *on_loaded, *off_loaded;
357 const char *on_active, *off_active;
359 if (!output_show_unit(u))
362 if (!n_shown && !arg_no_legend) {
363 printf("%-*s %-6s %-*s %-*s ", id_len, "UNIT", "LOAD",
364 active_len, "ACTIVE", sub_len, "SUB");
366 printf("%-*s ", job_len, "JOB");
367 if (!arg_full && arg_no_pager)
368 printf("%.*s\n", desc_len, "DESCRIPTION");
370 printf("%s\n", "DESCRIPTION");
375 if (streq(u->load_state, "error")) {
376 on_loaded = ansi_highlight_red(true);
377 off_loaded = ansi_highlight_red(false);
379 on_loaded = off_loaded = "";
381 if (streq(u->active_state, "failed")) {
382 on_active = ansi_highlight_red(true);
383 off_active = ansi_highlight_red(false);
385 on_active = off_active = "";
387 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
389 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s",
390 id_len, e ? e : u->id,
391 on_loaded, u->load_state, off_loaded,
392 on_active, active_len, u->active_state,
393 sub_len, u->sub_state, off_active,
394 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
395 if (!arg_full && arg_no_pager)
396 printf("%.*s\n", desc_len, u->description);
398 printf("%s\n", u->description);
401 if (!arg_no_legend) {
402 const char *on, *off;
405 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
406 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
407 "SUB = The low-level unit activation state, values depend on unit type.\n");
409 printf("JOB = Pending job for the unit.\n");
411 on = ansi_highlight(true);
412 off = ansi_highlight(false);
414 on = ansi_highlight_red(true);
415 off = ansi_highlight_red(false);
419 printf("%s%u loaded units listed.%s\n"
420 "To show all installed unit files use 'systemctl list-unit-files'.\n",
423 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
424 "To show all installed unit files use 'systemctl list-unit-files'.\n",
429 static int get_unit_list(DBusConnection *bus, DBusMessage **reply,
430 struct unit_info **unit_infos, unsigned *c) {
431 DBusMessageIter iter, sub;
432 unsigned n_units = 0;
439 r = bus_method_call_with_reply(
441 "org.freedesktop.systemd1",
442 "/org/freedesktop/systemd1",
443 "org.freedesktop.systemd1.Manager",
451 if (!dbus_message_iter_init(*reply, &iter) ||
452 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
453 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
454 log_error("Failed to parse reply.");
458 dbus_message_iter_recurse(&iter, &sub);
460 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
466 n_units = MAX(2 * *c, 16u);
467 w = realloc(*unit_infos, sizeof(struct unit_info) * n_units);
474 u = *unit_infos + *c;
476 bus_parse_unit_info(&sub, u);
478 dbus_message_iter_next(&sub);
483 qsort(*unit_infos, *c, sizeof(struct unit_info), compare_unit_info);
488 static int list_units(DBusConnection *bus, char **args) {
489 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
490 _cleanup_free_ struct unit_info *unit_infos = NULL;
494 pager_open_if_enabled();
496 r = get_unit_list(bus, &reply, &unit_infos, &c);
501 output_units_list(unit_infos, c);
506 static int compare_unit_file_list(const void *a, const void *b) {
508 const UnitFileList *u = a, *v = b;
510 d1 = strrchr(u->path, '.');
511 d2 = strrchr(v->path, '.');
516 r = strcasecmp(d1, d2);
521 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
524 static bool output_show_unit_file(const UnitFileList *u) {
527 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
530 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
531 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
532 const UnitFileList *u;
534 max_id_len = sizeof("UNIT FILE")-1;
535 state_cols = sizeof("STATE")-1;
536 for (u = units; u < units + c; u++) {
537 if (!output_show_unit_file(u))
540 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
541 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
546 id_cols = MIN(max_id_len, 25u);
547 basic_cols = 1 + id_cols + state_cols;
548 if (basic_cols < (unsigned) columns())
549 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
551 id_cols = max_id_len;
554 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
556 for (u = units; u < units + c; u++) {
557 char _cleanup_free_ *e = NULL;
558 const char *on, *off;
561 if (!output_show_unit_file(u))
566 if (u->state == UNIT_FILE_MASKED ||
567 u->state == UNIT_FILE_MASKED_RUNTIME ||
568 u->state == UNIT_FILE_DISABLED ||
569 u->state == UNIT_FILE_INVALID) {
570 on = ansi_highlight_red(true);
571 off = ansi_highlight_red(false);
572 } else if (u->state == UNIT_FILE_ENABLED) {
573 on = ansi_highlight_green(true);
574 off = ansi_highlight_green(false);
578 id = path_get_file_name(u->path);
580 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
582 printf("%-*s %s%-*s%s\n",
584 on, state_cols, unit_file_state_to_string(u->state), off);
588 printf("\n%u unit files listed.\n", n_shown);
591 static int list_unit_files(DBusConnection *bus, char **args) {
592 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
593 _cleanup_free_ UnitFileList *units = NULL;
594 DBusMessageIter iter, sub, sub2;
595 unsigned c = 0, n_units = 0;
598 pager_open_if_enabled();
605 h = hashmap_new(string_hash_func, string_compare_func);
609 r = unit_file_get_list(arg_scope, arg_root, h);
611 unit_file_list_free(h);
612 log_error("Failed to get unit file list: %s", strerror(-r));
616 n_units = hashmap_size(h);
617 units = new(UnitFileList, n_units);
619 unit_file_list_free(h);
623 HASHMAP_FOREACH(u, h, i) {
624 memcpy(units + c++, u, sizeof(UnitFileList));
630 r = bus_method_call_with_reply(
632 "org.freedesktop.systemd1",
633 "/org/freedesktop/systemd1",
634 "org.freedesktop.systemd1.Manager",
642 if (!dbus_message_iter_init(reply, &iter) ||
643 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
644 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
645 log_error("Failed to parse reply.");
649 dbus_message_iter_recurse(&iter, &sub);
651 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
655 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT);
660 n_units = MAX(2*c, 16u);
661 w = realloc(units, sizeof(struct UnitFileList) * n_units);
670 dbus_message_iter_recurse(&sub, &sub2);
672 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
673 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
674 log_error("Failed to parse reply.");
678 u->state = unit_file_state_from_string(state);
680 dbus_message_iter_next(&sub);
686 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
687 output_unit_file_list(units, c);
693 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
695 _cleanup_free_ char *n = NULL;
697 size_t max_len = MAX(columns(),20u);
699 for (i = level - 1; i >= 0; i--) {
701 if(len > max_len - 3 && !arg_full) {
702 printf("%s...\n",max_len % 2 ? "" : " ");
705 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
708 if(len > max_len - 3 && !arg_full) {
709 printf("%s...\n",max_len % 2 ? "" : " ");
712 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
715 printf("%s\n", name);
719 n = ellipsize(name, max_len-len, 100);
727 static int list_dependencies_get_dependencies(DBusConnection *bus, const char *name, char ***deps) {
728 static const char dependencies[] =
730 "RequiresOverridable\0"
732 "RequisiteOverridable\0"
735 _cleanup_free_ char *path;
736 const char *interface = "org.freedesktop.systemd1.Unit";
738 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
739 DBusMessageIter iter, sub, sub2, sub3;
748 path = unit_dbus_path_from_name(name);
754 r = bus_method_call_with_reply(
756 "org.freedesktop.systemd1",
758 "org.freedesktop.DBus.Properties",
762 DBUS_TYPE_STRING, &interface,
767 if (!dbus_message_iter_init(reply, &iter) ||
768 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
769 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
770 log_error("Failed to parse reply.");
775 dbus_message_iter_recurse(&iter, &sub);
777 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
780 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
781 dbus_message_iter_recurse(&sub, &sub2);
783 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
784 log_error("Failed to parse reply.");
789 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
790 log_error("Failed to parse reply.");
795 dbus_message_iter_recurse(&sub2, &sub3);
796 dbus_message_iter_next(&sub);
798 if (!nulstr_contains(dependencies, prop))
801 if (dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_ARRAY) {
802 if (dbus_message_iter_get_element_type(&sub3) == DBUS_TYPE_STRING) {
803 DBusMessageIter sub4;
804 dbus_message_iter_recurse(&sub3, &sub4);
806 while (dbus_message_iter_get_arg_type(&sub4) != DBUS_TYPE_INVALID) {
809 assert(dbus_message_iter_get_arg_type(&sub4) == DBUS_TYPE_STRING);
810 dbus_message_iter_get_basic(&sub4, &s);
812 r = strv_extend(&ret, s);
818 dbus_message_iter_next(&sub4);
831 static int list_dependencies_compare(const void *_a, const void *_b) {
832 const char **a = (const char**) _a, **b = (const char**) _b;
833 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
835 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
837 return strcasecmp(*a, *b);
840 static int list_dependencies_one(DBusConnection *bus, const char *name, int level, char **units, unsigned int branches) {
841 char _cleanup_strv_free_ **deps = NULL, **u;
845 u = strv_append(units, name);
849 r = list_dependencies_get_dependencies(bus, name, &deps);
853 qsort(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
855 STRV_FOREACH(c, deps) {
856 if (strv_contains(u, *c)) {
857 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
863 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
867 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
868 r = list_dependencies_one(bus, *c, level + 1, u, (branches << 1) | (c[1] == NULL ? 0 : 1));
877 static int list_dependencies(DBusConnection *bus, char **args) {
878 _cleanup_free_ char *unit = NULL;
884 unit = unit_name_mangle(args[1]);
889 u = SPECIAL_DEFAULT_TARGET;
891 pager_open_if_enabled();
895 return list_dependencies_one(bus, u, 0, NULL, 0);
898 static int list_jobs(DBusConnection *bus, char **args) {
899 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
900 DBusMessageIter iter, sub, sub2;
904 pager_open_if_enabled();
906 r = bus_method_call_with_reply(
908 "org.freedesktop.systemd1",
909 "/org/freedesktop/systemd1",
910 "org.freedesktop.systemd1.Manager",
918 if (!dbus_message_iter_init(reply, &iter) ||
919 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
920 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
921 log_error("Failed to parse reply.");
925 dbus_message_iter_recurse(&iter, &sub);
928 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
930 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
931 const char *name, *type, *state, *job_path, *unit_path;
933 char _cleanup_free_ *e = NULL;
935 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
936 log_error("Failed to parse reply.");
940 dbus_message_iter_recurse(&sub, &sub2);
942 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
943 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
944 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
945 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
946 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
947 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
948 log_error("Failed to parse reply.");
952 e = arg_full ? NULL : ellipsize(name, 25, 33);
953 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
957 dbus_message_iter_next(&sub);
961 printf("\n%u jobs listed.\n", k);
966 static int load_unit(DBusConnection *bus, char **args) {
971 STRV_FOREACH(name, args+1) {
972 _cleanup_free_ char *n = NULL;
975 n = unit_name_mangle(*name);
979 r = bus_method_call_with_reply(
981 "org.freedesktop.systemd1",
982 "/org/freedesktop/systemd1",
983 "org.freedesktop.systemd1.Manager",
987 DBUS_TYPE_STRING, &n,
996 static int cancel_job(DBusConnection *bus, char **args) {
1001 if (strv_length(args) <= 1)
1002 return daemon_reload(bus, args);
1004 STRV_FOREACH(name, args+1) {
1008 r = safe_atou32(*name, &id);
1010 log_error("Failed to parse job id: %s", strerror(-r));
1014 r = bus_method_call_with_reply(
1016 "org.freedesktop.systemd1",
1017 "/org/freedesktop/systemd1",
1018 "org.freedesktop.systemd1.Manager",
1022 DBUS_TYPE_UINT32, &id,
1031 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1032 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1033 dbus_bool_t b = FALSE;
1034 DBusMessageIter iter, sub;
1036 *interface = "org.freedesktop.systemd1.Unit",
1037 *property = "NeedDaemonReload",
1039 _cleanup_free_ char *n = NULL;
1042 /* We ignore all errors here, since this is used to show a warning only */
1044 n = unit_name_mangle(unit);
1048 r = bus_method_call_with_reply(
1050 "org.freedesktop.systemd1",
1051 "/org/freedesktop/systemd1",
1052 "org.freedesktop.systemd1.Manager",
1056 DBUS_TYPE_STRING, &n,
1061 if (!dbus_message_get_args(reply, NULL,
1062 DBUS_TYPE_OBJECT_PATH, &path,
1066 dbus_message_unref(reply);
1069 r = bus_method_call_with_reply(
1071 "org.freedesktop.systemd1",
1073 "org.freedesktop.DBus.Properties",
1077 DBUS_TYPE_STRING, &interface,
1078 DBUS_TYPE_STRING, &property,
1083 if (!dbus_message_iter_init(reply, &iter) ||
1084 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1087 dbus_message_iter_recurse(&iter, &sub);
1088 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1091 dbus_message_iter_get_basic(&sub, &b);
1095 typedef struct WaitData {
1102 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1103 DBusError _cleanup_dbus_error_free_ error;
1106 dbus_error_init(&error);
1112 log_debug("Got D-Bus request: %s.%s() on %s",
1113 dbus_message_get_interface(message),
1114 dbus_message_get_member(message),
1115 dbus_message_get_path(message));
1117 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1118 log_error("Warning! D-Bus connection terminated.");
1119 dbus_connection_close(connection);
1121 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1123 const char *path, *result, *unit;
1125 if (dbus_message_get_args(message, &error,
1126 DBUS_TYPE_UINT32, &id,
1127 DBUS_TYPE_OBJECT_PATH, &path,
1128 DBUS_TYPE_STRING, &unit,
1129 DBUS_TYPE_STRING, &result,
1130 DBUS_TYPE_INVALID)) {
1132 free(set_remove(d->set, (char*) path));
1134 if (!isempty(result))
1135 d->result = strdup(result);
1138 d->name = strdup(unit);
1140 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1143 dbus_error_free(&error);
1144 if (dbus_message_get_args(message, &error,
1145 DBUS_TYPE_UINT32, &id,
1146 DBUS_TYPE_OBJECT_PATH, &path,
1147 DBUS_TYPE_STRING, &result,
1148 DBUS_TYPE_INVALID)) {
1149 /* Compatibility with older systemd versions <
1150 * 183 during upgrades. This should be dropped
1152 free(set_remove(d->set, (char*) path));
1155 d->result = strdup(result);
1157 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1161 log_error("Failed to parse message: %s", bus_error_message(&error));
1164 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1167 static int enable_wait_for_jobs(DBusConnection *bus) {
1175 dbus_error_init(&error);
1176 dbus_bus_add_match(bus,
1178 "sender='org.freedesktop.systemd1',"
1179 "interface='org.freedesktop.systemd1.Manager',"
1180 "member='JobRemoved',"
1181 "path='/org/freedesktop/systemd1'",
1184 if (dbus_error_is_set(&error)) {
1185 log_error("Failed to add match: %s", bus_error_message(&error));
1186 dbus_error_free(&error);
1190 /* This is slightly dirty, since we don't undo the match registrations. */
1194 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1204 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL))
1207 while (!set_isempty(s)) {
1209 if (!dbus_connection_read_write_dispatch(bus, -1)) {
1210 log_error("Disconnected from bus.");
1211 return -ECONNREFUSED;
1218 if (streq(d.result, "timeout"))
1219 log_error("Job for %s timed out.", strna(d.name));
1220 else if (streq(d.result, "canceled"))
1221 log_error("Job for %s canceled.", strna(d.name));
1222 else if (streq(d.result, "dependency"))
1223 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d.name));
1224 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1225 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d.name), strna(d.name));
1228 if (streq_ptr(d.result, "timeout"))
1230 else if (streq_ptr(d.result, "canceled"))
1232 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1243 dbus_connection_remove_filter(bus, wait_filter, &d);
1247 static int check_one_unit(DBusConnection *bus, const char *name, char **check_states, bool quiet) {
1248 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1249 _cleanup_free_ char *n = NULL;
1250 DBusMessageIter iter, sub;
1252 *interface = "org.freedesktop.systemd1.Unit",
1253 *property = "ActiveState";
1254 const char *state, *path;
1260 dbus_error_init(&error);
1262 n = unit_name_mangle(name);
1266 r = bus_method_call_with_reply (
1268 "org.freedesktop.systemd1",
1269 "/org/freedesktop/systemd1",
1270 "org.freedesktop.systemd1.Manager",
1274 DBUS_TYPE_STRING, &n,
1277 dbus_error_free(&error);
1284 if (!dbus_message_get_args(reply, NULL,
1285 DBUS_TYPE_OBJECT_PATH, &path,
1286 DBUS_TYPE_INVALID)) {
1287 log_error("Failed to parse reply.");
1291 dbus_message_unref(reply);
1294 r = bus_method_call_with_reply(
1296 "org.freedesktop.systemd1",
1298 "org.freedesktop.DBus.Properties",
1302 DBUS_TYPE_STRING, &interface,
1303 DBUS_TYPE_STRING, &property,
1311 if (!dbus_message_iter_init(reply, &iter) ||
1312 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1313 log_error("Failed to parse reply.");
1317 dbus_message_iter_recurse(&iter, &sub);
1319 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1320 log_error("Failed to parse reply.");
1324 dbus_message_iter_get_basic(&sub, &state);
1329 return strv_find(check_states, state) ? 1 : 0;
1332 static void check_triggering_units(
1333 DBusConnection *bus,
1334 const char *unit_name) {
1336 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1337 DBusMessageIter iter, sub;
1338 const char *interface = "org.freedesktop.systemd1.Unit",
1339 *load_state_property = "LoadState",
1340 *triggered_by_property = "TriggeredBy",
1342 char _cleanup_free_ *unit_path = NULL, *n = NULL;
1343 bool print_warning_label = true;
1346 n = unit_name_mangle(unit_name);
1352 unit_path = unit_dbus_path_from_name(n);
1358 r = bus_method_call_with_reply(
1360 "org.freedesktop.systemd1",
1362 "org.freedesktop.DBus.Properties",
1366 DBUS_TYPE_STRING, &interface,
1367 DBUS_TYPE_STRING, &load_state_property,
1372 if (!dbus_message_iter_init(reply, &iter) ||
1373 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1374 log_error("Failed to parse reply.");
1378 dbus_message_iter_recurse(&iter, &sub);
1380 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1381 log_error("Failed to parse reply.");
1385 dbus_message_iter_get_basic(&sub, &state);
1387 if (streq(state, "masked"))
1390 dbus_message_unref(reply);
1393 r = bus_method_call_with_reply(
1395 "org.freedesktop.systemd1",
1397 "org.freedesktop.DBus.Properties",
1401 DBUS_TYPE_STRING, &interface,
1402 DBUS_TYPE_STRING, &triggered_by_property,
1407 if (!dbus_message_iter_init(reply, &iter) ||
1408 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1409 log_error("Failed to parse reply.");
1413 dbus_message_iter_recurse(&iter, &sub);
1414 dbus_message_iter_recurse(&sub, &iter);
1417 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1418 const char * const check_states[] = {
1423 const char *service_trigger;
1425 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1426 log_error("Failed to parse reply.");
1430 dbus_message_iter_get_basic(&sub, &service_trigger);
1432 r = check_one_unit(bus, service_trigger, (char**) check_states, true);
1436 if (print_warning_label) {
1437 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1438 print_warning_label = false;
1441 log_warning(" %s", service_trigger);
1444 dbus_message_iter_next(&sub);
1448 static int start_unit_one(
1449 DBusConnection *bus,
1456 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1457 _cleanup_free_ char *n;
1466 n = unit_name_mangle(name);
1470 r = bus_method_call_with_reply(
1472 "org.freedesktop.systemd1",
1473 "/org/freedesktop/systemd1",
1474 "org.freedesktop.systemd1.Manager",
1478 DBUS_TYPE_STRING, &n,
1479 DBUS_TYPE_STRING, &mode,
1482 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
1483 /* There's always a fallback possible for
1484 * legacy actions. */
1487 log_error("Failed to issue method call: %s", bus_error_message(error));
1492 if (!dbus_message_get_args(reply, error,
1493 DBUS_TYPE_OBJECT_PATH, &path,
1494 DBUS_TYPE_INVALID)) {
1495 log_error("Failed to parse reply: %s", bus_error_message(error));
1499 if (need_daemon_reload(bus, n))
1500 log_warning("Warning: Unit file of %s changed on disk, 'systemctl %s daemon-reload' recommended.",
1501 n, arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1513 log_error("Failed to add path to set.");
1521 static const struct {
1525 } action_table[_ACTION_MAX] = {
1526 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
1527 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
1528 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
1529 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
1530 [ACTION_RUNLEVEL2] = { SPECIAL_RUNLEVEL2_TARGET, NULL, "isolate" },
1531 [ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
1532 [ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
1533 [ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_TARGET, NULL, "isolate" },
1534 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
1535 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
1536 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
1537 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
1538 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
1539 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
1540 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
1543 static enum action verb_to_action(const char *verb) {
1546 for (i = ACTION_INVALID; i < _ACTION_MAX; i++)
1547 if (action_table[i].verb && streq(verb, action_table[i].verb))
1549 return ACTION_INVALID;
1552 static int start_unit(DBusConnection *bus, char **args) {
1555 const char *method, *mode, *one_name;
1556 Set _cleanup_set_free_free_ *s = NULL;
1557 DBusError _cleanup_dbus_error_free_ error;
1560 dbus_error_init(&error);
1564 ask_password_agent_open_if_enabled();
1566 if (arg_action == ACTION_SYSTEMCTL) {
1569 streq(args[0], "stop") ||
1570 streq(args[0], "condstop") ? "StopUnit" :
1571 streq(args[0], "reload") ? "ReloadUnit" :
1572 streq(args[0], "restart") ? "RestartUnit" :
1574 streq(args[0], "try-restart") ||
1575 streq(args[0], "condrestart") ? "TryRestartUnit" :
1577 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1579 streq(args[0], "reload-or-try-restart") ||
1580 streq(args[0], "condreload") ||
1582 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1584 action = verb_to_action(args[0]);
1586 mode = streq(args[0], "isolate") ? "isolate" :
1587 action_table[action].mode ?: arg_job_mode;
1589 one_name = action_table[action].target;
1592 assert(arg_action < ELEMENTSOF(action_table));
1593 assert(action_table[arg_action].target);
1595 method = "StartUnit";
1597 mode = action_table[arg_action].mode;
1598 one_name = action_table[arg_action].target;
1601 if (!arg_no_block) {
1602 ret = enable_wait_for_jobs(bus);
1604 log_error("Could not watch jobs: %s", strerror(-ret));
1608 s = set_new(string_hash_func, string_compare_func);
1614 ret = start_unit_one(bus, method, one_name, mode, &error, s);
1616 ret = translate_bus_error_to_exit_status(ret, &error);
1618 STRV_FOREACH(name, args+1) {
1619 r = start_unit_one(bus, method, *name, mode, &error, s);
1621 ret = translate_bus_error_to_exit_status(r, &error);
1622 dbus_error_free(&error);
1627 if (!arg_no_block) {
1628 r = wait_for_jobs(bus, s);
1632 /* When stopping units, warn if they can still be triggered by
1633 * another active unit (socket, path, timer) */
1634 if (!arg_quiet && streq(method, "StopUnit")) {
1636 check_triggering_units(bus, one_name);
1638 STRV_FOREACH(name, args+1)
1639 check_triggering_units(bus, *name);
1646 /* Ask systemd-logind, which might grant access to unprivileged users
1647 * through PolicyKit */
1648 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1651 dbus_bool_t interactive = true;
1656 polkit_agent_open_if_enabled();
1664 case ACTION_POWEROFF:
1665 method = "PowerOff";
1668 case ACTION_SUSPEND:
1672 case ACTION_HIBERNATE:
1673 method = "Hibernate";
1676 case ACTION_HYBRID_SLEEP:
1677 method = "HybridSleep";
1684 return bus_method_call_with_reply(
1686 "org.freedesktop.login1",
1687 "/org/freedesktop/login1",
1688 "org.freedesktop.login1.Manager",
1692 DBUS_TYPE_BOOLEAN, &interactive,
1699 static int check_inhibitors(DBusConnection *bus, enum action a) {
1701 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1702 DBusMessageIter iter, sub, sub2;
1705 _cleanup_strv_free_ char **sessions = NULL;
1711 if (arg_ignore_inhibitors || arg_force > 0)
1723 r = bus_method_call_with_reply(
1725 "org.freedesktop.login1",
1726 "/org/freedesktop/login1",
1727 "org.freedesktop.login1.Manager",
1733 /* If logind is not around, then there are no inhibitors... */
1736 if (!dbus_message_iter_init(reply, &iter) ||
1737 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1738 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1739 log_error("Failed to parse reply.");
1743 dbus_message_iter_recurse(&iter, &sub);
1744 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1745 const char *what, *who, *why, *mode;
1747 _cleanup_strv_free_ char **sv = NULL;
1748 _cleanup_free_ char *comm = NULL, *user = NULL;
1750 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1751 log_error("Failed to parse reply.");
1755 dbus_message_iter_recurse(&sub, &sub2);
1757 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &what, true) < 0 ||
1758 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &who, true) < 0 ||
1759 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &why, true) < 0 ||
1760 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &mode, true) < 0 ||
1761 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &uid, true) < 0 ||
1762 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, false) < 0) {
1763 log_error("Failed to parse reply.");
1767 if (!streq(mode, "block"))
1770 sv = strv_split(what, ":");
1774 if (!strv_contains(sv,
1776 a == ACTION_POWEROFF ||
1777 a == ACTION_REBOOT ||
1778 a == ACTION_KEXEC ? "shutdown" : "sleep"))
1781 get_process_comm(pid, &comm);
1782 user = uid_to_name(uid);
1783 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
1784 who, (unsigned long) pid, strna(comm), strna(user), why);
1788 dbus_message_iter_next(&sub);
1791 dbus_message_iter_recurse(&iter, &sub);
1793 /* Check for current sessions */
1794 sd_get_sessions(&sessions);
1795 STRV_FOREACH(s, sessions) {
1797 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
1799 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
1802 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
1805 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
1808 sd_session_get_tty(*s, &tty);
1809 sd_session_get_seat(*s, &seat);
1810 sd_session_get_service(*s, &service);
1811 user = uid_to_name(uid);
1813 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
1820 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
1821 action_table[a].verb);
1829 static int start_special(DBusConnection *bus, char **args) {
1835 a = verb_to_action(args[0]);
1837 r = check_inhibitors(bus, a);
1841 if (arg_force >= 2 && geteuid() != 0) {
1842 log_error("Must be root.");
1846 if (arg_force >= 2 &&
1847 (a == ACTION_HALT ||
1848 a == ACTION_POWEROFF ||
1849 a == ACTION_REBOOT))
1852 if (arg_force >= 1 &&
1853 (a == ACTION_HALT ||
1854 a == ACTION_POWEROFF ||
1855 a == ACTION_REBOOT ||
1856 a == ACTION_KEXEC ||
1858 return daemon_reload(bus, args);
1860 /* first try logind, to allow authentication with polkit */
1861 if (geteuid() != 0 &&
1862 (a == ACTION_POWEROFF ||
1863 a == ACTION_REBOOT ||
1864 a == ACTION_SUSPEND ||
1865 a == ACTION_HIBERNATE ||
1866 a == ACTION_HYBRID_SLEEP)) {
1867 r = reboot_with_logind(bus, a);
1872 r = start_unit(bus, args);
1873 if (r == EXIT_SUCCESS)
1879 static int check_unit_active(DBusConnection *bus, char **args) {
1880 const char * const check_states[] = {
1887 int r = 3; /* According to LSB: "program is not running" */
1892 STRV_FOREACH(name, args+1) {
1895 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
1905 static int check_unit_failed(DBusConnection *bus, char **args) {
1906 const char * const check_states[] = {
1917 STRV_FOREACH(name, args+1) {
1920 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
1930 static int kill_unit(DBusConnection *bus, char **args) {
1938 arg_kill_who = "all";
1940 STRV_FOREACH(name, args+1) {
1941 _cleanup_free_ char *n = NULL;
1943 n = unit_name_mangle(*name);
1947 r = bus_method_call_with_reply(
1949 "org.freedesktop.systemd1",
1950 "/org/freedesktop/systemd1",
1951 "org.freedesktop.systemd1.Manager",
1955 DBUS_TYPE_STRING, &n,
1956 DBUS_TYPE_STRING, &arg_kill_who,
1957 DBUS_TYPE_INT32, &arg_signal,
1965 static int set_cgroup(DBusConnection *bus, char **args) {
1966 _cleanup_free_ char *n = NULL;
1967 const char *method, *runtime;
1975 streq(args[0], "set-cgroup") ? "SetUnitControlGroup" :
1976 streq(args[0], "unset-cgroup") ? "UnsetUnitControlGroup"
1977 : "UnsetUnitControlGroupAttribute";
1979 runtime = arg_runtime ? "runtime" : "persistent";
1981 n = unit_name_mangle(args[1]);
1985 STRV_FOREACH(argument, args + 2) {
1987 r = bus_method_call_with_reply(
1989 "org.freedesktop.systemd1",
1990 "/org/freedesktop/systemd1",
1991 "org.freedesktop.systemd1.Manager",
1995 DBUS_TYPE_STRING, &n,
1996 DBUS_TYPE_STRING, argument,
1997 DBUS_TYPE_STRING, &runtime,
2006 static int set_cgroup_attr(DBusConnection *bus, char **args) {
2007 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
2009 DBusMessageIter iter;
2010 _cleanup_free_ char *n = NULL;
2011 const char *runtime;
2017 dbus_error_init(&error);
2019 runtime = arg_runtime ? "runtime" : "persistent";
2021 n = unit_name_mangle(args[1]);
2025 m = dbus_message_new_method_call(
2026 "org.freedesktop.systemd1",
2027 "/org/freedesktop/systemd1",
2028 "org.freedesktop.systemd1.Manager",
2029 "SetUnitControlGroupAttribute");
2033 dbus_message_iter_init_append(m, &iter);
2034 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n) ||
2035 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &args[2]))
2038 r = bus_append_strv_iter(&iter, args + 3);
2042 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &runtime))
2045 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2047 log_error("Failed to issue method call: %s", bus_error_message(&error));
2048 dbus_error_free(&error);
2055 static int get_cgroup_attr(DBusConnection *bus, char **args) {
2056 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
2057 _cleanup_free_ char *n = NULL;
2064 n = unit_name_mangle(args[1]);
2068 STRV_FOREACH(argument, args + 2) {
2069 _cleanup_strv_free_ char **list = NULL;
2070 DBusMessageIter iter;
2073 r = bus_method_call_with_reply(
2075 "org.freedesktop.systemd1",
2076 "/org/freedesktop/systemd1",
2077 "org.freedesktop.systemd1.Manager",
2078 "GetUnitControlGroupAttribute",
2081 DBUS_TYPE_STRING, &n,
2082 DBUS_TYPE_STRING, argument,
2087 if (!dbus_message_iter_init(reply, &iter)) {
2088 log_error("Failed to initialize iterator.");
2092 r = bus_parse_strv_iter(&iter, &list);
2094 log_error("Failed to parse value list.");
2098 STRV_FOREACH(a, list) {
2099 if (endswith(*a, "\n"))
2109 typedef struct ExecStatusInfo {
2117 usec_t start_timestamp;
2118 usec_t exit_timestamp;
2123 LIST_FIELDS(struct ExecStatusInfo, exec);
2126 static void exec_status_info_free(ExecStatusInfo *i) {
2135 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2136 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2137 DBusMessageIter sub2, sub3;
2141 int32_t code, status;
2147 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2150 dbus_message_iter_recurse(sub, &sub2);
2152 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2155 i->path = strdup(path);
2159 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2160 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2164 dbus_message_iter_recurse(&sub2, &sub3);
2165 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2166 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2167 dbus_message_iter_next(&sub3);
2171 i->argv = new0(char*, n+1);
2176 dbus_message_iter_recurse(&sub2, &sub3);
2177 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2180 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2181 dbus_message_iter_get_basic(&sub3, &s);
2182 dbus_message_iter_next(&sub3);
2184 i->argv[n] = strdup(s);
2191 if (!dbus_message_iter_next(&sub2) ||
2192 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2193 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2194 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2195 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2196 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2197 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2198 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2199 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2203 i->start_timestamp = (usec_t) start_timestamp;
2204 i->exit_timestamp = (usec_t) exit_timestamp;
2205 i->pid = (pid_t) pid;
2212 typedef struct UnitStatusInfo {
2214 const char *load_state;
2215 const char *active_state;
2216 const char *sub_state;
2217 const char *unit_file_state;
2219 const char *description;
2220 const char *following;
2222 char **documentation;
2224 const char *fragment_path;
2225 const char *source_path;
2226 const char *default_control_group;
2228 const char *load_error;
2231 usec_t inactive_exit_timestamp;
2232 usec_t inactive_exit_timestamp_monotonic;
2233 usec_t active_enter_timestamp;
2234 usec_t active_exit_timestamp;
2235 usec_t inactive_enter_timestamp;
2237 bool need_daemon_reload;
2242 const char *status_text;
2245 usec_t start_timestamp;
2246 usec_t exit_timestamp;
2248 int exit_code, exit_status;
2250 usec_t condition_timestamp;
2251 bool condition_result;
2254 unsigned n_accepted;
2255 unsigned n_connections;
2261 const char *sysfs_path;
2263 /* Mount, Automount */
2269 LIST_HEAD(ExecStatusInfo, exec);
2272 static void print_status_info(UnitStatusInfo *i) {
2274 const char *on, *off, *ss;
2276 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2277 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2280 arg_all * OUTPUT_SHOW_ALL |
2281 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2282 on_tty() * OUTPUT_COLOR |
2283 !arg_quiet * OUTPUT_WARN_CUTOFF |
2284 arg_full * OUTPUT_FULL_WIDTH;
2288 /* This shows pretty information about a unit. See
2289 * print_property() for a low-level property printer */
2291 printf("%s", strna(i->id));
2293 if (i->description && !streq_ptr(i->id, i->description))
2294 printf(" - %s", i->description);
2299 printf("\t Follow: unit currently follows state of %s\n", i->following);
2301 if (streq_ptr(i->load_state, "error")) {
2302 on = ansi_highlight_red(true);
2303 off = ansi_highlight_red(false);
2307 path = i->source_path ? i->source_path : i->fragment_path;
2310 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2311 else if (path && i->unit_file_state)
2312 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2314 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2316 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2318 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2320 if (streq_ptr(i->active_state, "failed")) {
2321 on = ansi_highlight_red(true);
2322 off = ansi_highlight_red(false);
2323 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2324 on = ansi_highlight_green(true);
2325 off = ansi_highlight_green(false);
2330 printf("\t Active: %s%s (%s)%s",
2332 strna(i->active_state),
2336 printf("\t Active: %s%s%s",
2338 strna(i->active_state),
2341 if (!isempty(i->result) && !streq(i->result, "success"))
2342 printf(" (Result: %s)", i->result);
2344 timestamp = (streq_ptr(i->active_state, "active") ||
2345 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2346 (streq_ptr(i->active_state, "inactive") ||
2347 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2348 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2349 i->active_exit_timestamp;
2351 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2352 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2355 printf(" since %s; %s\n", s2, s1);
2357 printf(" since %s\n", s2);
2361 if (!i->condition_result && i->condition_timestamp > 0) {
2362 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2363 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2366 printf("\t start condition failed at %s; %s\n", s2, s1);
2368 printf("\t start condition failed at %s\n", s2);
2372 printf("\t Device: %s\n", i->sysfs_path);
2374 printf("\t Where: %s\n", i->where);
2376 printf("\t What: %s\n", i->what);
2378 if (!strv_isempty(i->documentation)) {
2382 STRV_FOREACH(t, i->documentation) {
2384 printf("\t Docs: %s\n", *t);
2387 printf("\t %s\n", *t);
2391 if (!strv_isempty(i->listen)) {
2395 STRV_FOREACH(t, i->listen) {
2397 printf("\t Listen: %s\n", *t);
2400 printf("\t %s\n", *t);
2405 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2407 LIST_FOREACH(exec, p, i->exec) {
2408 _cleanup_free_ char *t = NULL;
2411 /* Only show exited processes here */
2415 t = strv_join(p->argv, " ");
2416 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2418 good = is_clean_exit_lsb(p->code, p->status, NULL);
2420 on = ansi_highlight_red(true);
2421 off = ansi_highlight_red(false);
2425 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2427 if (p->code == CLD_EXITED) {
2430 printf("status=%i", p->status);
2432 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2437 printf("signal=%s", signal_to_string(p->status));
2439 printf(")%s\n", off);
2441 if (i->main_pid == p->pid &&
2442 i->start_timestamp == p->start_timestamp &&
2443 i->exit_timestamp == p->start_timestamp)
2444 /* Let's not show this twice */
2447 if (p->pid == i->control_pid)
2451 if (i->main_pid > 0 || i->control_pid > 0) {
2454 if (i->main_pid > 0) {
2455 printf("Main PID: %u", (unsigned) i->main_pid);
2458 _cleanup_free_ char *t = NULL;
2459 get_process_comm(i->main_pid, &t);
2462 } else if (i->exit_code > 0) {
2463 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2465 if (i->exit_code == CLD_EXITED) {
2468 printf("status=%i", i->exit_status);
2470 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2475 printf("signal=%s", signal_to_string(i->exit_status));
2480 if (i->main_pid > 0 && i->control_pid > 0)
2483 if (i->control_pid > 0) {
2484 _cleanup_free_ char *t = NULL;
2486 printf(" Control: %u", (unsigned) i->control_pid);
2488 get_process_comm(i->control_pid, &t);
2497 printf("\t Status: \"%s\"\n", i->status_text);
2499 if (i->default_control_group &&
2500 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_by_spec(i->default_control_group, false) == 0)) {
2503 printf("\t CGroup: %s\n", i->default_control_group);
2505 if (arg_transport != TRANSPORT_SSH) {
2515 if (i->main_pid > 0)
2516 extra[k++] = i->main_pid;
2518 if (i->control_pid > 0)
2519 extra[k++] = i->control_pid;
2521 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, extra, k, flags);
2525 if (i->id && arg_transport != TRANSPORT_SSH) {
2527 show_journal_by_unit(stdout,
2531 i->inactive_exit_timestamp_monotonic,
2535 arg_scope == UNIT_FILE_SYSTEM);
2538 if (i->need_daemon_reload)
2539 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2540 ansi_highlight_red(true),
2541 ansi_highlight_red(false),
2542 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2545 static void show_unit_help(UnitStatusInfo *i) {
2550 if (!i->documentation) {
2551 log_info("Documentation for %s not known.", i->id);
2555 STRV_FOREACH(p, i->documentation) {
2557 if (startswith(*p, "man:")) {
2560 char _cleanup_free_ *page = NULL, *section = NULL;
2561 const char *args[4] = { "man", NULL, NULL, NULL };
2566 if ((*p)[k-1] == ')')
2567 e = strrchr(*p, '(');
2570 page = strndup((*p) + 4, e - *p - 4);
2571 section = strndup(e + 1, *p + k - e - 2);
2572 if (!page || !section) {
2584 log_error("Failed to fork: %m");
2590 execvp(args[0], (char**) args);
2591 log_error("Failed to execute man: %m");
2592 _exit(EXIT_FAILURE);
2595 wait_for_terminate(pid, NULL);
2597 log_info("Can't show: %s", *p);
2601 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2607 switch (dbus_message_iter_get_arg_type(iter)) {
2609 case DBUS_TYPE_STRING: {
2612 dbus_message_iter_get_basic(iter, &s);
2615 if (streq(name, "Id"))
2617 else if (streq(name, "LoadState"))
2619 else if (streq(name, "ActiveState"))
2620 i->active_state = s;
2621 else if (streq(name, "SubState"))
2623 else if (streq(name, "Description"))
2625 else if (streq(name, "FragmentPath"))
2626 i->fragment_path = s;
2627 else if (streq(name, "SourcePath"))
2629 else if (streq(name, "DefaultControlGroup"))
2630 i->default_control_group = s;
2631 else if (streq(name, "StatusText"))
2633 else if (streq(name, "SysFSPath"))
2635 else if (streq(name, "Where"))
2637 else if (streq(name, "What"))
2639 else if (streq(name, "Following"))
2641 else if (streq(name, "UnitFileState"))
2642 i->unit_file_state = s;
2643 else if (streq(name, "Result"))
2650 case DBUS_TYPE_BOOLEAN: {
2653 dbus_message_iter_get_basic(iter, &b);
2655 if (streq(name, "Accept"))
2657 else if (streq(name, "NeedDaemonReload"))
2658 i->need_daemon_reload = b;
2659 else if (streq(name, "ConditionResult"))
2660 i->condition_result = b;
2665 case DBUS_TYPE_UINT32: {
2668 dbus_message_iter_get_basic(iter, &u);
2670 if (streq(name, "MainPID")) {
2672 i->main_pid = (pid_t) u;
2675 } else if (streq(name, "ControlPID"))
2676 i->control_pid = (pid_t) u;
2677 else if (streq(name, "ExecMainPID")) {
2679 i->main_pid = (pid_t) u;
2680 } else if (streq(name, "NAccepted"))
2682 else if (streq(name, "NConnections"))
2683 i->n_connections = u;
2688 case DBUS_TYPE_INT32: {
2691 dbus_message_iter_get_basic(iter, &j);
2693 if (streq(name, "ExecMainCode"))
2694 i->exit_code = (int) j;
2695 else if (streq(name, "ExecMainStatus"))
2696 i->exit_status = (int) j;
2701 case DBUS_TYPE_UINT64: {
2704 dbus_message_iter_get_basic(iter, &u);
2706 if (streq(name, "ExecMainStartTimestamp"))
2707 i->start_timestamp = (usec_t) u;
2708 else if (streq(name, "ExecMainExitTimestamp"))
2709 i->exit_timestamp = (usec_t) u;
2710 else if (streq(name, "ActiveEnterTimestamp"))
2711 i->active_enter_timestamp = (usec_t) u;
2712 else if (streq(name, "InactiveEnterTimestamp"))
2713 i->inactive_enter_timestamp = (usec_t) u;
2714 else if (streq(name, "InactiveExitTimestamp"))
2715 i->inactive_exit_timestamp = (usec_t) u;
2716 else if (streq(name, "InactiveExitTimestampMonotonic"))
2717 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2718 else if (streq(name, "ActiveExitTimestamp"))
2719 i->active_exit_timestamp = (usec_t) u;
2720 else if (streq(name, "ConditionTimestamp"))
2721 i->condition_timestamp = (usec_t) u;
2726 case DBUS_TYPE_ARRAY: {
2728 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2729 startswith(name, "Exec")) {
2730 DBusMessageIter sub;
2732 dbus_message_iter_recurse(iter, &sub);
2733 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2734 ExecStatusInfo *info;
2737 if (!(info = new0(ExecStatusInfo, 1)))
2740 if (!(info->name = strdup(name))) {
2745 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2750 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2752 dbus_message_iter_next(&sub);
2755 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Listen")) {
2756 DBusMessageIter sub, sub2;
2758 dbus_message_iter_recurse(iter, &sub);
2759 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2760 const char *type, *path;
2762 dbus_message_iter_recurse(&sub, &sub2);
2764 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2765 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0) {
2767 if (asprintf(&buf, "%s: %s", type, path) < 0)
2770 l = strv_append(i->listen, buf);
2776 strv_free(i->listen);
2780 dbus_message_iter_next(&sub);
2785 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2786 streq(name, "Documentation")) {
2788 DBusMessageIter sub;
2790 dbus_message_iter_recurse(iter, &sub);
2791 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2795 dbus_message_iter_get_basic(&sub, &s);
2797 l = strv_append(i->documentation, s);
2801 strv_free(i->documentation);
2802 i->documentation = l;
2804 dbus_message_iter_next(&sub);
2811 case DBUS_TYPE_STRUCT: {
2813 if (streq(name, "LoadError")) {
2814 DBusMessageIter sub;
2815 const char *n, *message;
2818 dbus_message_iter_recurse(iter, &sub);
2820 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2824 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2828 if (!isempty(message))
2829 i->load_error = message;
2839 static int print_property(const char *name, DBusMessageIter *iter) {
2843 /* This is a low-level property printer, see
2844 * print_status_info() for the nicer output */
2846 if (arg_property && !strv_find(arg_property, name))
2849 switch (dbus_message_iter_get_arg_type(iter)) {
2851 case DBUS_TYPE_STRUCT: {
2852 DBusMessageIter sub;
2853 dbus_message_iter_recurse(iter, &sub);
2855 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2858 dbus_message_iter_get_basic(&sub, &u);
2861 printf("%s=%u\n", name, (unsigned) u);
2863 printf("%s=\n", name);
2866 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2869 dbus_message_iter_get_basic(&sub, &s);
2871 if (arg_all || s[0])
2872 printf("%s=%s\n", name, s);
2875 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2876 const char *a = NULL, *b = NULL;
2878 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2879 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2881 if (arg_all || !isempty(a) || !isempty(b))
2882 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2890 case DBUS_TYPE_ARRAY:
2892 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2893 DBusMessageIter sub, sub2;
2895 dbus_message_iter_recurse(iter, &sub);
2896 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2900 dbus_message_iter_recurse(&sub, &sub2);
2902 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2903 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2904 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2906 dbus_message_iter_next(&sub);
2911 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2912 DBusMessageIter sub, sub2;
2914 dbus_message_iter_recurse(iter, &sub);
2916 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2917 const char *type, *path;
2919 dbus_message_iter_recurse(&sub, &sub2);
2921 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2922 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2923 printf("%s=%s\n", type, path);
2925 dbus_message_iter_next(&sub);
2930 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Listen")) {
2931 DBusMessageIter sub, sub2;
2933 dbus_message_iter_recurse(iter, &sub);
2934 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2935 const char *type, *path;
2937 dbus_message_iter_recurse(&sub, &sub2);
2939 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2940 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2941 printf("Listen%s=%s\n", type, path);
2943 dbus_message_iter_next(&sub);
2948 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2949 DBusMessageIter sub, sub2;
2951 dbus_message_iter_recurse(iter, &sub);
2952 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2954 uint64_t value, next_elapse;
2956 dbus_message_iter_recurse(&sub, &sub2);
2958 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2959 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2960 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2961 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2963 printf("%s={ value=%s ; next_elapse=%s }\n",
2965 format_timespan(timespan1, sizeof(timespan1), value),
2966 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2969 dbus_message_iter_next(&sub);
2974 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2975 DBusMessageIter sub, sub2;
2977 dbus_message_iter_recurse(iter, &sub);
2978 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2979 const char *controller, *attr, *value;
2981 dbus_message_iter_recurse(&sub, &sub2);
2983 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
2984 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
2985 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
2987 printf("ControlGroupAttributes={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
2993 dbus_message_iter_next(&sub);
2998 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2999 DBusMessageIter sub;
3001 dbus_message_iter_recurse(iter, &sub);
3002 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3003 ExecStatusInfo info;
3006 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3007 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3008 char _cleanup_free_ *t;
3010 t = strv_join(info.argv, " ");
3012 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3016 yes_no(info.ignore),
3017 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3018 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3019 (unsigned) info. pid,
3020 sigchld_code_to_string(info.code),
3022 info.code == CLD_EXITED ? "" : "/",
3023 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3027 strv_free(info.argv);
3029 dbus_message_iter_next(&sub);
3038 if (generic_print_property(name, iter, arg_all) > 0)
3042 printf("%s=[unprintable]\n", name);
3047 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3048 DBusMessage _cleanup_free_ *reply = NULL;
3049 const char *interface = "";
3051 DBusMessageIter iter, sub, sub2, sub3;
3052 UnitStatusInfo info;
3060 r = bus_method_call_with_reply(
3062 "org.freedesktop.systemd1",
3064 "org.freedesktop.DBus.Properties",
3068 DBUS_TYPE_STRING, &interface,
3073 if (!dbus_message_iter_init(reply, &iter) ||
3074 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3075 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3076 log_error("Failed to parse reply.");
3080 dbus_message_iter_recurse(&iter, &sub);
3087 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3090 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
3091 dbus_message_iter_recurse(&sub, &sub2);
3093 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
3094 dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3095 log_error("Failed to parse reply.");
3099 dbus_message_iter_recurse(&sub2, &sub3);
3101 if (show_properties)
3102 r = print_property(name, &sub3);
3104 r = status_property(name, &sub3, &info);
3106 log_error("Failed to parse reply.");
3110 dbus_message_iter_next(&sub);
3115 if (!show_properties) {
3116 if (streq(verb, "help"))
3117 show_unit_help(&info);
3119 print_status_info(&info);
3122 strv_free(info.documentation);
3123 strv_free(info.listen);
3125 if (!streq_ptr(info.active_state, "active") &&
3126 !streq_ptr(info.active_state, "reloading") &&
3127 streq(verb, "status"))
3128 /* According to LSB: "program not running" */
3131 while ((p = info.exec)) {
3132 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3133 exec_status_info_free(p);
3139 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3140 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3141 const char *path = NULL;
3142 DBusError _cleanup_dbus_error_free_ error;
3145 dbus_error_init(&error);
3147 r = bus_method_call_with_reply(
3149 "org.freedesktop.systemd1",
3150 "/org/freedesktop/systemd1",
3151 "org.freedesktop.systemd1.Manager",
3155 DBUS_TYPE_UINT32, &pid,
3160 if (!dbus_message_get_args(reply, &error,
3161 DBUS_TYPE_OBJECT_PATH, &path,
3162 DBUS_TYPE_INVALID)) {
3163 log_error("Failed to parse reply: %s", bus_error_message(&error));
3167 r = show_one(verb, bus, path, false, new_line);
3171 static int show_all(const char* verb, DBusConnection *bus, bool show_properties, bool *new_line) {
3172 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3173 _cleanup_free_ struct unit_info *unit_infos = NULL;
3175 const struct unit_info *u;
3178 r = get_unit_list(bus, &reply, &unit_infos, &c);
3182 for (u = unit_infos; u < unit_infos + c; u++) {
3183 char _cleanup_free_ *p = NULL;
3185 if (!output_show_unit(u))
3188 p = unit_dbus_path_from_name(u->id);
3192 printf("%s -> '%s'\n", u->id, p);
3194 r = show_one(verb, bus, p, show_properties, new_line);
3202 static int show(DBusConnection *bus, char **args) {
3204 bool show_properties, show_status, new_line = false;
3210 show_properties = streq(args[0], "show");
3211 show_status = streq(args[0], "status");
3213 if (show_properties)
3214 pager_open_if_enabled();
3216 /* If no argument is specified inspect the manager itself */
3218 if (show_properties && strv_length(args) <= 1)
3219 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3221 if (show_status && strv_length(args) <= 1)
3222 return show_all(args[0], bus, false, &new_line);
3224 STRV_FOREACH(name, args+1) {
3227 if (safe_atou32(*name, &id) < 0) {
3228 _cleanup_free_ char *p = NULL, *n = NULL;
3229 /* Interpret as unit name */
3231 n = unit_name_mangle(*name);
3235 p = unit_dbus_path_from_name(n);
3239 r = show_one(args[0], bus, p, show_properties, &new_line);
3243 } else if (show_properties) {
3244 _cleanup_free_ char *p = NULL;
3246 /* Interpret as job id */
3247 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3250 r = show_one(args[0], bus, p, show_properties, &new_line);
3255 /* Interpret as PID */
3256 r = show_one_by_pid(args[0], bus, id, &new_line);
3265 static int dump(DBusConnection *bus, char **args) {
3266 _cleanup_free_ DBusMessage *reply = NULL;
3271 dbus_error_init(&error);
3273 pager_open_if_enabled();
3275 r = bus_method_call_with_reply(
3277 "org.freedesktop.systemd1",
3278 "/org/freedesktop/systemd1",
3279 "org.freedesktop.systemd1.Manager",
3287 if (!dbus_message_get_args(reply, &error,
3288 DBUS_TYPE_STRING, &text,
3289 DBUS_TYPE_INVALID)) {
3290 log_error("Failed to parse reply: %s", bus_error_message(&error));
3291 dbus_error_free(&error);
3295 fputs(text, stdout);
3299 static int snapshot(DBusConnection *bus, char **args) {
3300 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3303 dbus_bool_t cleanup = FALSE;
3304 DBusMessageIter iter, sub;
3307 *interface = "org.freedesktop.systemd1.Unit",
3309 _cleanup_free_ char *n = NULL;
3311 dbus_error_init(&error);
3313 if (strv_length(args) > 1)
3314 n = snapshot_name_mangle(args[1]);
3320 r = bus_method_call_with_reply (
3322 "org.freedesktop.systemd1",
3323 "/org/freedesktop/systemd1",
3324 "org.freedesktop.systemd1.Manager",
3328 DBUS_TYPE_STRING, &n,
3329 DBUS_TYPE_BOOLEAN, &cleanup,
3334 if (!dbus_message_get_args(reply, &error,
3335 DBUS_TYPE_OBJECT_PATH, &path,
3336 DBUS_TYPE_INVALID)) {
3337 log_error("Failed to parse reply: %s", bus_error_message(&error));
3338 dbus_error_free(&error);
3342 dbus_message_unref(reply);
3345 r = bus_method_call_with_reply (
3347 "org.freedesktop.systemd1",
3349 "org.freedesktop.DBus.Properties",
3353 DBUS_TYPE_STRING, &interface,
3354 DBUS_TYPE_STRING, &property,
3359 if (!dbus_message_iter_init(reply, &iter) ||
3360 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3361 log_error("Failed to parse reply.");
3365 dbus_message_iter_recurse(&iter, &sub);
3367 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3368 log_error("Failed to parse reply.");
3372 dbus_message_iter_get_basic(&sub, &id);
3380 static int delete_snapshot(DBusConnection *bus, char **args) {
3385 STRV_FOREACH(name, args+1) {
3386 _cleanup_free_ char *n = NULL;
3389 n = snapshot_name_mangle(*name);
3393 r = bus_method_call_with_reply(
3395 "org.freedesktop.systemd1",
3396 "/org/freedesktop/systemd1",
3397 "org.freedesktop.systemd1.Manager",
3401 DBUS_TYPE_STRING, &n,
3410 static int daemon_reload(DBusConnection *bus, char **args) {
3415 if (arg_action == ACTION_RELOAD)
3417 else if (arg_action == ACTION_REEXEC)
3418 method = "Reexecute";
3420 assert(arg_action == ACTION_SYSTEMCTL);
3423 streq(args[0], "clear-jobs") ||
3424 streq(args[0], "cancel") ? "ClearJobs" :
3425 streq(args[0], "daemon-reexec") ? "Reexecute" :
3426 streq(args[0], "reset-failed") ? "ResetFailed" :
3427 streq(args[0], "halt") ? "Halt" :
3428 streq(args[0], "poweroff") ? "PowerOff" :
3429 streq(args[0], "reboot") ? "Reboot" :
3430 streq(args[0], "kexec") ? "KExec" :
3431 streq(args[0], "exit") ? "Exit" :
3432 /* "daemon-reload" */ "Reload";
3435 r = bus_method_call_with_reply(
3437 "org.freedesktop.systemd1",
3438 "/org/freedesktop/systemd1",
3439 "org.freedesktop.systemd1.Manager",
3445 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
3446 /* There's always a fallback possible for
3447 * legacy actions. */
3449 else if (r == -ETIMEDOUT && streq(method, "Reexecute"))
3450 /* On reexecution, we expect a disconnect, not
3454 log_error("Failed to issue method call: %s", bus_error_message(&error));
3456 dbus_error_free(&error);
3460 static int reset_failed(DBusConnection *bus, char **args) {
3464 if (strv_length(args) <= 1)
3465 return daemon_reload(bus, args);
3467 STRV_FOREACH(name, args+1) {
3468 _cleanup_free_ char *n;
3470 n = unit_name_mangle(*name);
3474 r = bus_method_call_with_reply(
3476 "org.freedesktop.systemd1",
3477 "/org/freedesktop/systemd1",
3478 "org.freedesktop.systemd1.Manager",
3482 DBUS_TYPE_STRING, &n,
3491 static int show_enviroment(DBusConnection *bus, char **args) {
3492 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3493 DBusMessageIter iter, sub, sub2;
3496 *interface = "org.freedesktop.systemd1.Manager",
3497 *property = "Environment";
3499 pager_open_if_enabled();
3501 r = bus_method_call_with_reply(
3503 "org.freedesktop.systemd1",
3504 "/org/freedesktop/systemd1",
3505 "org.freedesktop.DBus.Properties",
3509 DBUS_TYPE_STRING, &interface,
3510 DBUS_TYPE_STRING, &property,
3515 if (!dbus_message_iter_init(reply, &iter) ||
3516 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3517 log_error("Failed to parse reply.");
3521 dbus_message_iter_recurse(&iter, &sub);
3523 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3524 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3525 log_error("Failed to parse reply.");
3529 dbus_message_iter_recurse(&sub, &sub2);
3531 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3534 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3535 log_error("Failed to parse reply.");
3539 dbus_message_iter_get_basic(&sub2, &text);
3542 dbus_message_iter_next(&sub2);
3548 static int switch_root(DBusConnection *bus, char **args) {
3551 _cleanup_free_ char *init = NULL;
3553 l = strv_length(args);
3554 if (l < 2 || l > 3) {
3555 log_error("Wrong number of arguments.");
3562 init = strdup(args[2]);
3564 parse_env_file("/proc/cmdline", WHITESPACE,
3574 log_debug("switching root - root: %s; init: %s", root, init);
3576 return bus_method_call_with_reply(
3578 "org.freedesktop.systemd1",
3579 "/org/freedesktop/systemd1",
3580 "org.freedesktop.systemd1.Manager",
3584 DBUS_TYPE_STRING, &root,
3585 DBUS_TYPE_STRING, &init,
3589 static int set_environment(DBusConnection *bus, char **args) {
3590 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
3593 DBusMessageIter iter;
3599 dbus_error_init(&error);
3601 method = streq(args[0], "set-environment")
3603 : "UnsetEnvironment";
3605 m = dbus_message_new_method_call(
3606 "org.freedesktop.systemd1",
3607 "/org/freedesktop/systemd1",
3608 "org.freedesktop.systemd1.Manager",
3613 dbus_message_iter_init_append(m, &iter);
3615 r = bus_append_strv_iter(&iter, args + 1);
3619 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3621 log_error("Failed to issue method call: %s", bus_error_message(&error));
3622 dbus_error_free(&error);
3629 static int enable_sysv_units(char **args) {
3632 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
3633 const char *verb = args[0];
3634 unsigned f = 1, t = 1;
3637 if (arg_scope != UNIT_FILE_SYSTEM)
3640 if (!streq(verb, "enable") &&
3641 !streq(verb, "disable") &&
3642 !streq(verb, "is-enabled"))
3645 /* Processes all SysV units, and reshuffles the array so that
3646 * afterwards only the native units remain */
3649 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
3654 for (f = 1; args[f]; f++) {
3657 bool found_native = false, found_sysv;
3659 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3660 char **k, *l, *q = NULL;
3667 if (!endswith(name, ".service"))
3670 if (path_is_absolute(name))
3673 STRV_FOREACH(k, paths.unit_path) {
3676 if (!isempty(arg_root))
3677 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3679 asprintf(&p, "%s/%s", *k, name);
3686 found_native = access(p, F_OK) >= 0;
3697 if (!isempty(arg_root))
3698 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3700 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3706 p[strlen(p) - sizeof(".service") + 1] = 0;
3707 found_sysv = access(p, F_OK) >= 0;
3714 /* Mark this entry, so that we don't try enabling it as native unit */
3715 args[f] = (char*) "";
3717 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3719 if (!isempty(arg_root))
3720 argv[c++] = q = strappend("--root=", arg_root);
3722 argv[c++] = path_get_file_name(p);
3724 streq(verb, "enable") ? "on" :
3725 streq(verb, "disable") ? "off" : "--level=5";
3728 l = strv_join((char**)argv, " ");
3736 log_info("Executing %s", l);
3741 log_error("Failed to fork: %m");
3746 } else if (pid == 0) {
3749 execv(argv[0], (char**) argv);
3750 _exit(EXIT_FAILURE);
3756 j = wait_for_terminate(pid, &status);
3758 log_error("Failed to wait for child: %s", strerror(-r));
3763 if (status.si_code == CLD_EXITED) {
3764 if (streq(verb, "is-enabled")) {
3765 if (status.si_status == 0) {
3774 } else if (status.si_status != 0) {
3785 lookup_paths_free(&paths);
3787 /* Drop all SysV units */
3788 for (f = 1, t = 1; args[f]; f++) {
3790 if (isempty(args[f]))
3793 args[t++] = args[f];
3802 static int mangle_names(char **original_names, char ***mangled_names) {
3803 char **i, **l, **name;
3805 l = new(char*, strv_length(original_names) + 1);
3810 STRV_FOREACH(name, original_names) {
3812 /* When enabling units qualified path names are OK,
3813 * too, hence allow them explicitly. */
3818 *i = unit_name_mangle(*name);
3834 static int enable_unit(DBusConnection *bus, char **args) {
3835 const char *verb = args[0];
3836 UnitFileChange *changes = NULL;
3837 unsigned n_changes = 0, i;
3838 int carries_install_info = -1;
3839 DBusMessage _cleanup_dbus_message_unref_ *m = NULL, *reply = NULL;
3841 DBusError _cleanup_dbus_error_free_ error;
3842 char _cleanup_strv_free_ **mangled_names = NULL;
3844 dbus_error_init(&error);
3846 r = enable_sysv_units(args);
3853 if (!bus || avoid_bus()) {
3854 if (streq(verb, "enable")) {
3855 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3856 carries_install_info = r;
3857 } else if (streq(verb, "disable"))
3858 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3859 else if (streq(verb, "reenable")) {
3860 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3861 carries_install_info = r;
3862 } else if (streq(verb, "link"))
3863 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3864 else if (streq(verb, "preset")) {
3865 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3866 carries_install_info = r;
3867 } else if (streq(verb, "mask"))
3868 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3869 else if (streq(verb, "unmask"))
3870 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3872 assert_not_reached("Unknown verb");
3875 log_error("Operation failed: %s", strerror(-r));
3880 for (i = 0; i < n_changes; i++) {
3881 if (changes[i].type == UNIT_FILE_SYMLINK)
3882 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
3884 log_info("rm '%s'", changes[i].path);
3891 bool send_force = true, expect_carries_install_info = false;
3893 DBusMessageIter iter, sub, sub2;
3895 if (streq(verb, "enable")) {
3896 method = "EnableUnitFiles";
3897 expect_carries_install_info = true;
3898 } else if (streq(verb, "disable")) {
3899 method = "DisableUnitFiles";
3901 } else if (streq(verb, "reenable")) {
3902 method = "ReenableUnitFiles";
3903 expect_carries_install_info = true;
3904 } else if (streq(verb, "link"))
3905 method = "LinkUnitFiles";
3906 else if (streq(verb, "preset")) {
3907 method = "PresetUnitFiles";
3908 expect_carries_install_info = true;
3909 } else if (streq(verb, "mask"))
3910 method = "MaskUnitFiles";
3911 else if (streq(verb, "unmask")) {
3912 method = "UnmaskUnitFiles";
3915 assert_not_reached("Unknown verb");
3917 m = dbus_message_new_method_call(
3918 "org.freedesktop.systemd1",
3919 "/org/freedesktop/systemd1",
3920 "org.freedesktop.systemd1.Manager",
3927 dbus_message_iter_init_append(m, &iter);
3929 r = mangle_names(args+1, &mangled_names);
3933 r = bus_append_strv_iter(&iter, mangled_names);
3935 log_error("Failed to append unit files.");
3940 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
3941 log_error("Failed to append runtime boolean.");
3949 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
3950 log_error("Failed to append force boolean.");
3956 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3958 log_error("Failed to issue method call: %s", bus_error_message(&error));
3963 if (!dbus_message_iter_init(reply, &iter)) {
3964 log_error("Failed to initialize iterator.");
3968 if (expect_carries_install_info) {
3969 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
3971 log_error("Failed to parse reply.");
3975 carries_install_info = b;
3978 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3979 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
3980 log_error("Failed to parse reply.");
3985 dbus_message_iter_recurse(&iter, &sub);
3986 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3987 const char *type, *path, *source;
3989 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
3990 log_error("Failed to parse reply.");
3995 dbus_message_iter_recurse(&sub, &sub2);
3997 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
3998 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
3999 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4000 log_error("Failed to parse reply.");
4006 if (streq(type, "symlink"))
4007 log_info("ln -s '%s' '%s'", source, path);
4009 log_info("rm '%s'", path);
4012 dbus_message_iter_next(&sub);
4015 /* Try to reload if enabeld */
4017 r = daemon_reload(bus, args);
4020 if (carries_install_info == 0)
4021 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
4022 "using systemctl.\n"
4023 "Possible reasons for having this kind of units are:\n"
4024 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4025 " .wants/ or .requires/ directory.\n"
4026 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4027 " a requirement dependency on it.\n"
4028 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4029 " D-Bus, udev, scripted systemctl call, ...).\n");
4032 unit_file_changes_free(changes, n_changes);
4037 static int unit_is_enabled(DBusConnection *bus, char **args) {
4038 DBusError _cleanup_dbus_error_free_ error;
4040 DBusMessage _cleanup_dbus_message_unref_ *reply = NULL;
4045 dbus_error_init(&error);
4047 r = enable_sysv_units(args);
4053 if (!bus || avoid_bus()) {
4055 STRV_FOREACH(name, args+1) {
4056 UnitFileState state;
4058 n = unit_name_mangle(*name);
4062 state = unit_file_get_state(arg_scope, arg_root, n);
4069 if (state == UNIT_FILE_ENABLED ||
4070 state == UNIT_FILE_ENABLED_RUNTIME ||
4071 state == UNIT_FILE_STATIC)
4075 puts(unit_file_state_to_string(state));
4079 STRV_FOREACH(name, args+1) {
4082 n = unit_name_mangle(*name);
4086 r = bus_method_call_with_reply (
4088 "org.freedesktop.systemd1",
4089 "/org/freedesktop/systemd1",
4090 "org.freedesktop.systemd1.Manager",
4094 DBUS_TYPE_STRING, &n,
4102 if (!dbus_message_get_args(reply, &error,
4103 DBUS_TYPE_STRING, &s,
4104 DBUS_TYPE_INVALID)) {
4105 log_error("Failed to parse reply: %s", bus_error_message(&error));
4109 dbus_message_unref(reply);
4112 if (streq(s, "enabled") ||
4113 streq(s, "enabled-runtime") ||
4122 return enabled ? 0 : 1;
4125 static int systemctl_help(void) {
4127 pager_open_if_enabled();
4129 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4130 "Query or send control commands to the systemd manager.\n\n"
4131 " -h --help Show this help\n"
4132 " --version Show package version\n"
4133 " -t --type=TYPE List only units of a particular type\n"
4134 " -p --property=NAME Show only properties by this name\n"
4135 " -a --all Show all units/properties, including dead/empty ones\n"
4136 " --failed Show only failed units\n"
4137 " --full Don't ellipsize unit names on output\n"
4138 " --fail When queueing a new job, fail if conflicting jobs are\n"
4140 " --ignore-dependencies\n"
4141 " When queueing a new job, ignore all its dependencies\n"
4142 " -i --ignore-inhibitors\n"
4143 " When shutting down or sleeping, ignore inhibitors\n"
4144 " --kill-who=WHO Who to send signal to\n"
4145 " -s --signal=SIGNAL Which signal to send\n"
4146 " -H --host=[USER@]HOST\n"
4147 " Show information for remote host\n"
4148 " -P --privileged Acquire privileges before execution\n"
4149 " -q --quiet Suppress output\n"
4150 " --no-block Do not wait until operation finished\n"
4151 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4152 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4154 " --no-legend Do not print a legend (column headers and hints)\n"
4155 " --no-pager Do not pipe output into a pager\n"
4156 " --no-ask-password\n"
4157 " Do not ask for system passwords\n"
4158 " --system Connect to system manager\n"
4159 " --user Connect to user service manager\n"
4160 " --global Enable/disable unit files globally\n"
4161 " -f --force When enabling unit files, override existing symlinks\n"
4162 " When shutting down, execute action immediately\n"
4163 " --root=PATH Enable unit files in the specified root directory\n"
4164 " --runtime Enable unit files only temporarily until next reboot\n"
4165 " -n --lines=INTEGER Journal entries to show\n"
4166 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4167 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4169 " list-units List loaded units\n"
4170 " start [NAME...] Start (activate) one or more units\n"
4171 " stop [NAME...] Stop (deactivate) one or more units\n"
4172 " reload [NAME...] Reload one or more units\n"
4173 " restart [NAME...] Start or restart one or more units\n"
4174 " try-restart [NAME...] Restart one or more units if active\n"
4175 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4176 " otherwise start or restart\n"
4177 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4178 " otherwise restart if active\n"
4179 " isolate [NAME] Start one unit and stop all others\n"
4180 " kill [NAME...] Send signal to processes of a unit\n"
4181 " is-active [NAME...] Check whether units are active\n"
4182 " is-failed [NAME...] Check whether units are failed\n"
4183 " status [NAME...|PID...] Show runtime status of one or more units\n"
4184 " show [NAME...|JOB...] Show properties of one or more\n"
4185 " units/jobs or the manager\n"
4186 " help [NAME...|PID...] Show manual for one or more units\n"
4187 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4189 " get-cgroup-attr [NAME] [ATTR] ...\n"
4190 " Get control group attrubute\n"
4191 " set-cgroup-attr [NAME] [ATTR] [VALUE] ...\n"
4192 " Set control group attribute\n"
4193 " unset-cgroup-attr [NAME] [ATTR...]\n"
4194 " Unset control group attribute\n"
4195 " set-cgroup [NAME] [CGROUP...] Add unit to a control group\n"
4196 " unset-cgroup [NAME] [CGROUP...] Remove unit from a control group\n"
4197 " load [NAME...] Load one or more units\n"
4198 " list-dependencies [NAME] Recursively show units which are required\n"
4199 " or wanted by this unit\n\n"
4200 "Unit File Commands:\n"
4201 " list-unit-files List installed unit files\n"
4202 " enable [NAME...] Enable one or more unit files\n"
4203 " disable [NAME...] Disable one or more unit files\n"
4204 " reenable [NAME...] Reenable one or more unit files\n"
4205 " preset [NAME...] Enable/disable one or more unit files\n"
4206 " based on preset configuration\n"
4207 " mask [NAME...] Mask one or more units\n"
4208 " unmask [NAME...] Unmask one or more units\n"
4209 " link [PATH...] Link one or more units files into\n"
4210 " the search path\n"
4211 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4213 " list-jobs List jobs\n"
4214 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4215 "Status Commands:\n"
4216 " dump Dump server status\n"
4217 "Snapshot Commands:\n"
4218 " snapshot [NAME] Create a snapshot\n"
4219 " delete [NAME...] Remove one or more snapshots\n\n"
4220 "Environment Commands:\n"
4221 " show-environment Dump environment\n"
4222 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4223 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4224 "Manager Lifecycle Commands:\n"
4225 " daemon-reload Reload systemd manager configuration\n"
4226 " daemon-reexec Reexecute systemd manager\n\n"
4227 "System Commands:\n"
4228 " default Enter system default mode\n"
4229 " rescue Enter system rescue mode\n"
4230 " emergency Enter system emergency mode\n"
4231 " halt Shut down and halt the system\n"
4232 " poweroff Shut down and power-off the system\n"
4233 " reboot Shut down and reboot the system\n"
4234 " kexec Shut down and reboot the system with kexec\n"
4235 " exit Request user instance exit\n"
4236 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4237 " suspend Suspend the system\n"
4238 " hibernate Hibernate the system\n"
4239 " hybrid-sleep Hibernate and suspend the system\n",
4240 program_invocation_short_name);
4245 static int halt_help(void) {
4247 printf("%s [OPTIONS...]\n\n"
4248 "%s the system.\n\n"
4249 " --help Show this help\n"
4250 " --halt Halt the machine\n"
4251 " -p --poweroff Switch off the machine\n"
4252 " --reboot Reboot the machine\n"
4253 " -f --force Force immediate halt/power-off/reboot\n"
4254 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4255 " -d --no-wtmp Don't write wtmp record\n"
4256 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4257 program_invocation_short_name,
4258 arg_action == ACTION_REBOOT ? "Reboot" :
4259 arg_action == ACTION_POWEROFF ? "Power off" :
4265 static int shutdown_help(void) {
4267 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4268 "Shut down the system.\n\n"
4269 " --help Show this help\n"
4270 " -H --halt Halt the machine\n"
4271 " -P --poweroff Power-off the machine\n"
4272 " -r --reboot Reboot the machine\n"
4273 " -h Equivalent to --poweroff, overridden by --halt\n"
4274 " -k Don't halt/power-off/reboot, just send warnings\n"
4275 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4276 " -c Cancel a pending shutdown\n",
4277 program_invocation_short_name);
4282 static int telinit_help(void) {
4284 printf("%s [OPTIONS...] {COMMAND}\n\n"
4285 "Send control commands to the init daemon.\n\n"
4286 " --help Show this help\n"
4287 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4289 " 0 Power-off the machine\n"
4290 " 6 Reboot the machine\n"
4291 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4292 " 1, s, S Enter rescue mode\n"
4293 " q, Q Reload init daemon configuration\n"
4294 " u, U Reexecute init daemon\n",
4295 program_invocation_short_name);
4300 static int runlevel_help(void) {
4302 printf("%s [OPTIONS...]\n\n"
4303 "Prints the previous and current runlevel of the init system.\n\n"
4304 " --help Show this help\n",
4305 program_invocation_short_name);
4310 static int help_types(void) {
4314 puts("Available unit types:");
4315 for(i = 0; i < _UNIT_TYPE_MAX; i++) {
4316 t = unit_type_to_string(i);
4321 puts("\nAvailable unit load states: ");
4322 for(i = 0; i < _UNIT_LOAD_STATE_MAX; i++) {
4323 t = unit_load_state_to_string(i);
4331 static int systemctl_parse_argv(int argc, char *argv[]) {
4336 ARG_IGNORE_DEPENDENCIES,
4349 ARG_NO_ASK_PASSWORD,
4355 static const struct option options[] = {
4356 { "help", no_argument, NULL, 'h' },
4357 { "version", no_argument, NULL, ARG_VERSION },
4358 { "type", required_argument, NULL, 't' },
4359 { "property", required_argument, NULL, 'p' },
4360 { "all", no_argument, NULL, 'a' },
4361 { "failed", no_argument, NULL, ARG_FAILED },
4362 { "full", no_argument, NULL, ARG_FULL },
4363 { "fail", no_argument, NULL, ARG_FAIL },
4364 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE },
4365 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4366 { "ignore-inhibitors", no_argument, NULL, 'i' },
4367 { "user", no_argument, NULL, ARG_USER },
4368 { "system", no_argument, NULL, ARG_SYSTEM },
4369 { "global", no_argument, NULL, ARG_GLOBAL },
4370 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4371 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4372 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4373 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4374 { "quiet", no_argument, NULL, 'q' },
4375 { "root", required_argument, NULL, ARG_ROOT },
4376 { "force", no_argument, NULL, ARG_FORCE },
4377 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4378 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4379 { "signal", required_argument, NULL, 's' },
4380 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4381 { "host", required_argument, NULL, 'H' },
4382 { "privileged",no_argument, NULL, 'P' },
4383 { "runtime", no_argument, NULL, ARG_RUNTIME },
4384 { "lines", required_argument, NULL, 'n' },
4385 { "output", required_argument, NULL, 'o' },
4386 { NULL, 0, NULL, 0 }
4394 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:i", options, NULL)) >= 0) {
4403 puts(PACKAGE_STRING);
4404 puts(SYSTEMD_FEATURES);
4408 if (streq(optarg, "help")) {
4413 if (unit_type_from_string(optarg) >= 0) {
4417 if (unit_load_state_from_string(optarg) >= 0) {
4418 arg_load_state = optarg;
4421 log_error("Unkown unit type or load state '%s'.",
4423 log_info("Use -t help to see a list of allowed values.");
4428 /* Make sure that if the empty property list
4429 was specified, we won't show any properties. */
4430 const char *source = isempty(optarg) ? " " : optarg;
4432 FOREACH_WORD_SEPARATOR(word, size, source, ",", state) {
4433 char _cleanup_free_ *prop;
4436 prop = strndup(word, size);
4440 tmp = strv_append(arg_property, prop);
4444 strv_free(arg_property);
4448 /* If the user asked for a particular
4449 * property, show it to him, even if it is
4461 arg_job_mode = "fail";
4464 case ARG_IRREVERSIBLE:
4465 arg_job_mode = "replace-irreversibly";
4468 case ARG_IGNORE_DEPENDENCIES:
4469 arg_job_mode = "ignore-dependencies";
4473 arg_scope = UNIT_FILE_USER;
4477 arg_scope = UNIT_FILE_SYSTEM;
4481 arg_scope = UNIT_FILE_GLOBAL;
4485 arg_no_block = true;
4489 arg_no_legend = true;
4493 arg_no_pager = true;
4525 arg_no_reload = true;
4529 arg_kill_who = optarg;
4533 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4534 log_error("Failed to parse signal string %s.", optarg);
4539 case ARG_NO_ASK_PASSWORD:
4540 arg_ask_password = false;
4544 arg_transport = TRANSPORT_POLKIT;
4548 arg_transport = TRANSPORT_SSH;
4557 if (safe_atou(optarg, &arg_lines) < 0) {
4558 log_error("Failed to parse lines '%s'", optarg);
4564 arg_output = output_mode_from_string(optarg);
4565 if (arg_output < 0) {
4566 log_error("Unknown output '%s'.", optarg);
4572 arg_ignore_inhibitors = true;
4579 log_error("Unknown option code '%c'.", c);
4584 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4585 log_error("Cannot access user instance remotely.");
4592 static int halt_parse_argv(int argc, char *argv[]) {
4601 static const struct option options[] = {
4602 { "help", no_argument, NULL, ARG_HELP },
4603 { "halt", no_argument, NULL, ARG_HALT },
4604 { "poweroff", no_argument, NULL, 'p' },
4605 { "reboot", no_argument, NULL, ARG_REBOOT },
4606 { "force", no_argument, NULL, 'f' },
4607 { "wtmp-only", no_argument, NULL, 'w' },
4608 { "no-wtmp", no_argument, NULL, 'd' },
4609 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4610 { NULL, 0, NULL, 0 }
4618 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4619 if (runlevel == '0' || runlevel == '6')
4622 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4630 arg_action = ACTION_HALT;
4634 if (arg_action != ACTION_REBOOT)
4635 arg_action = ACTION_POWEROFF;
4639 arg_action = ACTION_REBOOT;
4661 /* Compatibility nops */
4668 log_error("Unknown option code '%c'.", c);
4673 if (optind < argc) {
4674 log_error("Too many arguments.");
4681 static int parse_time_spec(const char *t, usec_t *_u) {
4685 if (streq(t, "now"))
4687 else if (!strchr(t, ':')) {
4690 if (safe_atou64(t, &u) < 0)
4693 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4702 hour = strtol(t, &e, 10);
4703 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
4706 minute = strtol(e+1, &e, 10);
4707 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
4710 n = now(CLOCK_REALTIME);
4711 s = (time_t) (n / USEC_PER_SEC);
4714 assert_se(localtime_r(&s, &tm));
4716 tm.tm_hour = (int) hour;
4717 tm.tm_min = (int) minute;
4720 assert_se(s = mktime(&tm));
4722 *_u = (usec_t) s * USEC_PER_SEC;
4725 *_u += USEC_PER_DAY;
4731 static int shutdown_parse_argv(int argc, char *argv[]) {
4738 static const struct option options[] = {
4739 { "help", no_argument, NULL, ARG_HELP },
4740 { "halt", no_argument, NULL, 'H' },
4741 { "poweroff", no_argument, NULL, 'P' },
4742 { "reboot", no_argument, NULL, 'r' },
4743 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4744 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4745 { NULL, 0, NULL, 0 }
4753 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4761 arg_action = ACTION_HALT;
4765 arg_action = ACTION_POWEROFF;
4770 arg_action = ACTION_KEXEC;
4772 arg_action = ACTION_REBOOT;
4776 arg_action = ACTION_KEXEC;
4780 if (arg_action != ACTION_HALT)
4781 arg_action = ACTION_POWEROFF;
4794 /* Compatibility nops */
4798 arg_action = ACTION_CANCEL_SHUTDOWN;
4805 log_error("Unknown option code '%c'.", c);
4810 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
4811 r = parse_time_spec(argv[optind], &arg_when);
4813 log_error("Failed to parse time specification: %s", argv[optind]);
4817 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4819 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
4820 /* No time argument for shutdown cancel */
4821 arg_wall = argv + optind;
4822 else if (argc > optind + 1)
4823 /* We skip the time argument */
4824 arg_wall = argv + optind + 1;
4831 static int telinit_parse_argv(int argc, char *argv[]) {
4838 static const struct option options[] = {
4839 { "help", no_argument, NULL, ARG_HELP },
4840 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4841 { NULL, 0, NULL, 0 }
4844 static const struct {
4848 { '0', ACTION_POWEROFF },
4849 { '6', ACTION_REBOOT },
4850 { '1', ACTION_RESCUE },
4851 { '2', ACTION_RUNLEVEL2 },
4852 { '3', ACTION_RUNLEVEL3 },
4853 { '4', ACTION_RUNLEVEL4 },
4854 { '5', ACTION_RUNLEVEL5 },
4855 { 's', ACTION_RESCUE },
4856 { 'S', ACTION_RESCUE },
4857 { 'q', ACTION_RELOAD },
4858 { 'Q', ACTION_RELOAD },
4859 { 'u', ACTION_REEXEC },
4860 { 'U', ACTION_REEXEC }
4869 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4884 log_error("Unknown option code '%c'.", c);
4889 if (optind >= argc) {
4894 if (optind + 1 < argc) {
4895 log_error("Too many arguments.");
4899 if (strlen(argv[optind]) != 1) {
4900 log_error("Expected single character argument.");
4904 for (i = 0; i < ELEMENTSOF(table); i++)
4905 if (table[i].from == argv[optind][0])
4908 if (i >= ELEMENTSOF(table)) {
4909 log_error("Unknown command '%s'.", argv[optind]);
4913 arg_action = table[i].to;
4920 static int runlevel_parse_argv(int argc, char *argv[]) {
4926 static const struct option options[] = {
4927 { "help", no_argument, NULL, ARG_HELP },
4928 { NULL, 0, NULL, 0 }
4936 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4947 log_error("Unknown option code '%c'.", c);
4952 if (optind < argc) {
4953 log_error("Too many arguments.");
4960 static int parse_argv(int argc, char *argv[]) {
4964 if (program_invocation_short_name) {
4966 if (strstr(program_invocation_short_name, "halt")) {
4967 arg_action = ACTION_HALT;
4968 return halt_parse_argv(argc, argv);
4969 } else if (strstr(program_invocation_short_name, "poweroff")) {
4970 arg_action = ACTION_POWEROFF;
4971 return halt_parse_argv(argc, argv);
4972 } else if (strstr(program_invocation_short_name, "reboot")) {
4974 arg_action = ACTION_KEXEC;
4976 arg_action = ACTION_REBOOT;
4977 return halt_parse_argv(argc, argv);
4978 } else if (strstr(program_invocation_short_name, "shutdown")) {
4979 arg_action = ACTION_POWEROFF;
4980 return shutdown_parse_argv(argc, argv);
4981 } else if (strstr(program_invocation_short_name, "init")) {
4983 if (sd_booted() > 0) {
4984 arg_action = ACTION_INVALID;
4985 return telinit_parse_argv(argc, argv);
4987 /* Hmm, so some other init system is
4988 * running, we need to forward this
4989 * request to it. For now we simply
4990 * guess that it is Upstart. */
4992 execv(TELINIT, argv);
4994 log_error("Couldn't find an alternative telinit implementation to spawn.");
4998 } else if (strstr(program_invocation_short_name, "runlevel")) {
4999 arg_action = ACTION_RUNLEVEL;
5000 return runlevel_parse_argv(argc, argv);
5004 arg_action = ACTION_SYSTEMCTL;
5005 return systemctl_parse_argv(argc, argv);
5008 static int action_to_runlevel(void) {
5010 static const char table[_ACTION_MAX] = {
5011 [ACTION_HALT] = '0',
5012 [ACTION_POWEROFF] = '0',
5013 [ACTION_REBOOT] = '6',
5014 [ACTION_RUNLEVEL2] = '2',
5015 [ACTION_RUNLEVEL3] = '3',
5016 [ACTION_RUNLEVEL4] = '4',
5017 [ACTION_RUNLEVEL5] = '5',
5018 [ACTION_RESCUE] = '1'
5021 assert(arg_action < _ACTION_MAX);
5023 return table[arg_action];
5026 static int talk_upstart(void) {
5027 DBusMessage _cleanup_dbus_message_unref_ *m = NULL, *reply = NULL;
5028 DBusError _cleanup_dbus_error_free_ error;
5029 int previous, rl, r;
5031 env1_buf[] = "RUNLEVEL=X",
5032 env2_buf[] = "PREVLEVEL=X";
5033 char *env1 = env1_buf, *env2 = env2_buf;
5034 const char *emit = "runlevel";
5035 dbus_bool_t b_false = FALSE;
5036 DBusMessageIter iter, sub;
5037 DBusConnection *bus;
5039 dbus_error_init(&error);
5041 if (!(rl = action_to_runlevel()))
5044 if (utmp_get_runlevel(&previous, NULL) < 0)
5047 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5048 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5053 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5058 if ((r = bus_check_peercred(bus)) < 0) {
5059 log_error("Failed to verify owner of bus.");
5063 if (!(m = dbus_message_new_method_call(
5064 "com.ubuntu.Upstart",
5065 "/com/ubuntu/Upstart",
5066 "com.ubuntu.Upstart0_6",
5069 log_error("Could not allocate message.");
5074 dbus_message_iter_init_append(m, &iter);
5076 env1_buf[sizeof(env1_buf)-2] = rl;
5077 env2_buf[sizeof(env2_buf)-2] = previous;
5079 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5080 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5081 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5082 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5083 !dbus_message_iter_close_container(&iter, &sub) ||
5084 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5085 log_error("Could not append arguments to message.");
5090 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5092 if (bus_error_is_no_service(&error)) {
5097 log_error("Failed to issue method call: %s", bus_error_message(&error));
5106 dbus_connection_flush(bus);
5107 dbus_connection_close(bus);
5108 dbus_connection_unref(bus);
5114 static int talk_initctl(void) {
5115 struct init_request request = {0};
5117 int _cleanup_close_ fd = -1;
5120 rl = action_to_runlevel();
5124 request.magic = INIT_MAGIC;
5125 request.sleeptime = 0;
5126 request.cmd = INIT_CMD_RUNLVL;
5127 request.runlevel = rl;
5129 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5131 if (errno == ENOENT)
5134 log_error("Failed to open "INIT_FIFO": %m");
5139 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5141 log_error("Failed to write to "INIT_FIFO": %m");
5142 return errno ? -errno : -EIO;
5148 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5150 static const struct {
5158 int (* const dispatch)(DBusConnection *bus, char **args);
5160 { "list-units", LESS, 1, list_units },
5161 { "list-unit-files", EQUAL, 1, list_unit_files },
5162 { "list-jobs", EQUAL, 1, list_jobs },
5163 { "clear-jobs", EQUAL, 1, daemon_reload },
5164 { "load", MORE, 2, load_unit },
5165 { "cancel", MORE, 2, cancel_job },
5166 { "start", MORE, 2, start_unit },
5167 { "stop", MORE, 2, start_unit },
5168 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5169 { "reload", MORE, 2, start_unit },
5170 { "restart", MORE, 2, start_unit },
5171 { "try-restart", MORE, 2, start_unit },
5172 { "reload-or-restart", MORE, 2, start_unit },
5173 { "reload-or-try-restart", MORE, 2, start_unit },
5174 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5175 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5176 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5177 { "isolate", EQUAL, 2, start_unit },
5178 { "set-cgroup", MORE, 3, set_cgroup },
5179 { "unset-cgroup", MORE, 3, set_cgroup },
5180 { "get-cgroup-attr", MORE, 3, get_cgroup_attr },
5181 { "set-cgroup-attr", MORE, 4, set_cgroup_attr },
5182 { "unset-cgroup-attr", MORE, 3, set_cgroup },
5183 { "kill", MORE, 2, kill_unit },
5184 { "is-active", MORE, 2, check_unit_active },
5185 { "check", MORE, 2, check_unit_active },
5186 { "is-failed", MORE, 2, check_unit_failed },
5187 { "show", MORE, 1, show },
5188 { "status", MORE, 1, show },
5189 { "help", MORE, 2, show },
5190 { "dump", EQUAL, 1, dump },
5191 { "snapshot", LESS, 2, snapshot },
5192 { "delete", MORE, 2, delete_snapshot },
5193 { "daemon-reload", EQUAL, 1, daemon_reload },
5194 { "daemon-reexec", EQUAL, 1, daemon_reload },
5195 { "show-environment", EQUAL, 1, show_enviroment },
5196 { "set-environment", MORE, 2, set_environment },
5197 { "unset-environment", MORE, 2, set_environment },
5198 { "halt", EQUAL, 1, start_special },
5199 { "poweroff", EQUAL, 1, start_special },
5200 { "reboot", EQUAL, 1, start_special },
5201 { "kexec", EQUAL, 1, start_special },
5202 { "suspend", EQUAL, 1, start_special },
5203 { "hibernate", EQUAL, 1, start_special },
5204 { "hybrid-sleep", EQUAL, 1, start_special },
5205 { "default", EQUAL, 1, start_special },
5206 { "rescue", EQUAL, 1, start_special },
5207 { "emergency", EQUAL, 1, start_special },
5208 { "exit", EQUAL, 1, start_special },
5209 { "reset-failed", MORE, 1, reset_failed },
5210 { "enable", MORE, 2, enable_unit },
5211 { "disable", MORE, 2, enable_unit },
5212 { "is-enabled", MORE, 2, unit_is_enabled },
5213 { "reenable", MORE, 2, enable_unit },
5214 { "preset", MORE, 2, enable_unit },
5215 { "mask", MORE, 2, enable_unit },
5216 { "unmask", MORE, 2, enable_unit },
5217 { "link", MORE, 2, enable_unit },
5218 { "switch-root", MORE, 2, switch_root },
5219 { "list-dependencies", LESS, 2, list_dependencies },
5229 left = argc - optind;
5232 /* Special rule: no arguments means "list-units" */
5235 if (streq(argv[optind], "help") && !argv[optind+1]) {
5236 log_error("This command expects one or more "
5237 "unit names. Did you mean --help?");
5241 for (i = 0; i < ELEMENTSOF(verbs); i++)
5242 if (streq(argv[optind], verbs[i].verb))
5245 if (i >= ELEMENTSOF(verbs)) {
5246 log_error("Unknown operation '%s'.", argv[optind]);
5251 switch (verbs[i].argc_cmp) {
5254 if (left != verbs[i].argc) {
5255 log_error("Invalid number of arguments.");
5262 if (left < verbs[i].argc) {
5263 log_error("Too few arguments.");
5270 if (left > verbs[i].argc) {
5271 log_error("Too many arguments.");
5278 assert_not_reached("Unknown comparison operator.");
5281 /* Require a bus connection for all operations but
5283 if (!streq(verbs[i].verb, "enable") &&
5284 !streq(verbs[i].verb, "disable") &&
5285 !streq(verbs[i].verb, "is-enabled") &&
5286 !streq(verbs[i].verb, "list-unit-files") &&
5287 !streq(verbs[i].verb, "reenable") &&
5288 !streq(verbs[i].verb, "preset") &&
5289 !streq(verbs[i].verb, "mask") &&
5290 !streq(verbs[i].verb, "unmask") &&
5291 !streq(verbs[i].verb, "link")) {
5293 if (running_in_chroot() > 0) {
5294 log_info("Running in chroot, ignoring request.");
5298 if (((!streq(verbs[i].verb, "reboot") &&
5299 !streq(verbs[i].verb, "halt") &&
5300 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5301 log_error("Failed to get D-Bus connection: %s",
5302 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5308 if (!bus && !avoid_bus()) {
5309 log_error("Failed to get D-Bus connection: %s",
5310 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5315 return verbs[i].dispatch(bus, argv + optind);
5318 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5319 int _cleanup_close_ fd;
5320 struct msghdr msghdr;
5321 struct iovec iovec[2];
5322 union sockaddr_union sockaddr;
5323 struct sd_shutdown_command c;
5325 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5332 c.dry_run = dry_run;
5336 sockaddr.sa.sa_family = AF_UNIX;
5337 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5340 msghdr.msg_name = &sockaddr;
5341 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5344 iovec[0].iov_base = (char*) &c;
5345 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5347 if (isempty(message))
5348 msghdr.msg_iovlen = 1;
5350 iovec[1].iov_base = (char*) message;
5351 iovec[1].iov_len = strlen(message);
5352 msghdr.msg_iovlen = 2;
5354 msghdr.msg_iov = iovec;
5356 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
5362 static int reload_with_fallback(DBusConnection *bus) {
5365 /* First, try systemd via D-Bus. */
5366 if (daemon_reload(bus, NULL) >= 0)
5370 /* Nothing else worked, so let's try signals */
5371 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5373 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5374 log_error("kill() failed: %m");
5381 static int start_with_fallback(DBusConnection *bus) {
5384 /* First, try systemd via D-Bus. */
5385 if (start_unit(bus, NULL) >= 0)
5389 /* Hmm, talking to systemd via D-Bus didn't work. Then
5390 * let's try to talk to Upstart via D-Bus. */
5391 if (talk_upstart() > 0)
5394 /* Nothing else worked, so let's try
5396 if (talk_initctl() > 0)
5399 log_error("Failed to talk to init daemon.");
5403 warn_wall(arg_action);
5407 static _noreturn_ void halt_now(enum action a) {
5409 /* Make sure C-A-D is handled by the kernel from this
5411 reboot(RB_ENABLE_CAD);
5416 log_info("Halting.");
5417 reboot(RB_HALT_SYSTEM);
5420 case ACTION_POWEROFF:
5421 log_info("Powering off.");
5422 reboot(RB_POWER_OFF);
5426 log_info("Rebooting.");
5427 reboot(RB_AUTOBOOT);
5431 assert_not_reached("Unknown halt action.");
5434 assert_not_reached("Uh? This shouldn't happen.");
5437 static int halt_main(DBusConnection *bus) {
5440 r = check_inhibitors(bus, arg_action);
5444 if (geteuid() != 0) {
5445 /* Try logind if we are a normal user and no special
5446 * mode applies. Maybe PolicyKit allows us to shutdown
5449 if (arg_when <= 0 &&
5452 (arg_action == ACTION_POWEROFF ||
5453 arg_action == ACTION_REBOOT)) {
5454 r = reboot_with_logind(bus, arg_action);
5459 log_error("Must be root.");
5464 char _cleanup_free_ *m;
5466 m = strv_join(arg_wall, " ");
5467 r = send_shutdownd(arg_when,
5468 arg_action == ACTION_HALT ? 'H' :
5469 arg_action == ACTION_POWEROFF ? 'P' :
5470 arg_action == ACTION_KEXEC ? 'K' :
5477 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5479 char date[FORMAT_TIMESTAMP_MAX];
5481 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5482 format_timestamp(date, sizeof(date), arg_when));
5487 if (!arg_dry && !arg_force)
5488 return start_with_fallback(bus);
5491 if (sd_booted() > 0)
5492 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5494 r = utmp_put_shutdown();
5496 log_warning("Failed to write utmp record: %s", strerror(-r));
5503 halt_now(arg_action);
5504 /* We should never reach this. */
5508 static int runlevel_main(void) {
5509 int r, runlevel, previous;
5511 r = utmp_get_runlevel(&runlevel, &previous);
5518 previous <= 0 ? 'N' : previous,
5519 runlevel <= 0 ? 'N' : runlevel);
5524 int main(int argc, char*argv[]) {
5525 int r, retval = EXIT_FAILURE;
5526 DBusConnection *bus = NULL;
5527 DBusError _cleanup_dbus_error_free_ error;
5529 dbus_error_init(&error);
5531 setlocale(LC_ALL, "");
5532 log_parse_environment();
5535 r = parse_argv(argc, argv);
5539 retval = EXIT_SUCCESS;
5543 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5544 * let's shortcut this */
5545 if (arg_action == ACTION_RUNLEVEL) {
5546 r = runlevel_main();
5547 retval = r < 0 ? EXIT_FAILURE : r;
5551 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5552 log_info("Running in chroot, ignoring request.");
5558 if (arg_transport == TRANSPORT_NORMAL)
5559 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5560 else if (arg_transport == TRANSPORT_POLKIT) {
5561 bus_connect_system_polkit(&bus, &error);
5562 private_bus = false;
5563 } else if (arg_transport == TRANSPORT_SSH) {
5564 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5565 private_bus = false;
5567 assert_not_reached("Uh, invalid transport...");
5570 switch (arg_action) {
5572 case ACTION_SYSTEMCTL:
5573 r = systemctl_main(bus, argc, argv, &error);
5577 case ACTION_POWEROFF:
5583 case ACTION_RUNLEVEL2:
5584 case ACTION_RUNLEVEL3:
5585 case ACTION_RUNLEVEL4:
5586 case ACTION_RUNLEVEL5:
5588 case ACTION_EMERGENCY:
5589 case ACTION_DEFAULT:
5590 r = start_with_fallback(bus);
5595 r = reload_with_fallback(bus);
5598 case ACTION_CANCEL_SHUTDOWN: {
5602 m = strv_join(arg_wall, " ");
5604 retval = EXIT_FAILURE;
5608 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
5610 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
5615 case ACTION_INVALID:
5616 case ACTION_RUNLEVEL:
5618 assert_not_reached("Unknown action");
5621 retval = r < 0 ? EXIT_FAILURE : r;
5625 dbus_connection_flush(bus);
5626 dbus_connection_close(bus);
5627 dbus_connection_unref(bus);
5632 strv_free(arg_property);
5635 ask_password_agent_close();
5636 polkit_agent_close();