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, 25);
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, 25);
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, 16);
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, 25);
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, 16);
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(),20);
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;
2259 const char *sysfs_path;
2261 /* Mount, Automount */
2267 LIST_HEAD(ExecStatusInfo, exec);
2270 static void print_status_info(UnitStatusInfo *i) {
2272 const char *on, *off, *ss;
2274 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2275 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2278 arg_all * OUTPUT_SHOW_ALL |
2279 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2280 on_tty() * OUTPUT_COLOR |
2281 !arg_quiet * OUTPUT_WARN_CUTOFF |
2282 arg_full * OUTPUT_FULL_WIDTH;
2286 /* This shows pretty information about a unit. See
2287 * print_property() for a low-level property printer */
2289 printf("%s", strna(i->id));
2291 if (i->description && !streq_ptr(i->id, i->description))
2292 printf(" - %s", i->description);
2297 printf("\t Follow: unit currently follows state of %s\n", i->following);
2299 if (streq_ptr(i->load_state, "error")) {
2300 on = ansi_highlight_red(true);
2301 off = ansi_highlight_red(false);
2305 path = i->source_path ? i->source_path : i->fragment_path;
2308 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2309 else if (path && i->unit_file_state)
2310 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2312 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2314 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2316 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2318 if (streq_ptr(i->active_state, "failed")) {
2319 on = ansi_highlight_red(true);
2320 off = ansi_highlight_red(false);
2321 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2322 on = ansi_highlight_green(true);
2323 off = ansi_highlight_green(false);
2328 printf("\t Active: %s%s (%s)%s",
2330 strna(i->active_state),
2334 printf("\t Active: %s%s%s",
2336 strna(i->active_state),
2339 if (!isempty(i->result) && !streq(i->result, "success"))
2340 printf(" (Result: %s)", i->result);
2342 timestamp = (streq_ptr(i->active_state, "active") ||
2343 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2344 (streq_ptr(i->active_state, "inactive") ||
2345 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2346 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2347 i->active_exit_timestamp;
2349 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2350 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2353 printf(" since %s; %s\n", s2, s1);
2355 printf(" since %s\n", s2);
2359 if (!i->condition_result && i->condition_timestamp > 0) {
2360 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2361 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2364 printf("\t start condition failed at %s; %s\n", s2, s1);
2366 printf("\t start condition failed at %s\n", s2);
2370 printf("\t Device: %s\n", i->sysfs_path);
2372 printf("\t Where: %s\n", i->where);
2374 printf("\t What: %s\n", i->what);
2376 if (!strv_isempty(i->documentation)) {
2380 STRV_FOREACH(t, i->documentation) {
2382 printf("\t Docs: %s\n", *t);
2385 printf("\t %s\n", *t);
2390 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2392 LIST_FOREACH(exec, p, i->exec) {
2393 _cleanup_free_ char *t = NULL;
2396 /* Only show exited processes here */
2400 t = strv_join(p->argv, " ");
2401 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2403 good = is_clean_exit_lsb(p->code, p->status, NULL);
2405 on = ansi_highlight_red(true);
2406 off = ansi_highlight_red(false);
2410 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2412 if (p->code == CLD_EXITED) {
2415 printf("status=%i", p->status);
2417 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2422 printf("signal=%s", signal_to_string(p->status));
2424 printf(")%s\n", off);
2426 if (i->main_pid == p->pid &&
2427 i->start_timestamp == p->start_timestamp &&
2428 i->exit_timestamp == p->start_timestamp)
2429 /* Let's not show this twice */
2432 if (p->pid == i->control_pid)
2436 if (i->main_pid > 0 || i->control_pid > 0) {
2439 if (i->main_pid > 0) {
2440 printf("Main PID: %u", (unsigned) i->main_pid);
2443 _cleanup_free_ char *t = NULL;
2444 get_process_comm(i->main_pid, &t);
2447 } else if (i->exit_code > 0) {
2448 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2450 if (i->exit_code == CLD_EXITED) {
2453 printf("status=%i", i->exit_status);
2455 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2460 printf("signal=%s", signal_to_string(i->exit_status));
2465 if (i->main_pid > 0 && i->control_pid > 0)
2468 if (i->control_pid > 0) {
2469 _cleanup_free_ char *t = NULL;
2471 printf(" Control: %u", (unsigned) i->control_pid);
2473 get_process_comm(i->control_pid, &t);
2482 printf("\t Status: \"%s\"\n", i->status_text);
2484 if (i->default_control_group &&
2485 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_by_spec(i->default_control_group, false) == 0)) {
2488 printf("\t CGroup: %s\n", i->default_control_group);
2490 if (arg_transport != TRANSPORT_SSH) {
2500 if (i->main_pid > 0)
2501 extra[k++] = i->main_pid;
2503 if (i->control_pid > 0)
2504 extra[k++] = i->control_pid;
2506 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, extra, k, flags);
2510 if (i->id && arg_transport != TRANSPORT_SSH) {
2512 show_journal_by_unit(stdout,
2516 i->inactive_exit_timestamp_monotonic,
2520 arg_scope == UNIT_FILE_SYSTEM);
2523 if (i->need_daemon_reload)
2524 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2525 ansi_highlight_red(true),
2526 ansi_highlight_red(false),
2527 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2530 static void show_unit_help(UnitStatusInfo *i) {
2535 if (!i->documentation) {
2536 log_info("Documentation for %s not known.", i->id);
2540 STRV_FOREACH(p, i->documentation) {
2542 if (startswith(*p, "man:")) {
2545 char _cleanup_free_ *page = NULL, *section = NULL;
2546 const char *args[4] = { "man", NULL, NULL, NULL };
2551 if ((*p)[k-1] == ')')
2552 e = strrchr(*p, '(');
2555 page = strndup((*p) + 4, e - *p - 4);
2556 section = strndup(e + 1, *p + k - e - 2);
2557 if (!page || !section) {
2569 log_error("Failed to fork: %m");
2575 execvp(args[0], (char**) args);
2576 log_error("Failed to execute man: %m");
2577 _exit(EXIT_FAILURE);
2580 wait_for_terminate(pid, NULL);
2582 log_info("Can't show: %s", *p);
2586 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2592 switch (dbus_message_iter_get_arg_type(iter)) {
2594 case DBUS_TYPE_STRING: {
2597 dbus_message_iter_get_basic(iter, &s);
2600 if (streq(name, "Id"))
2602 else if (streq(name, "LoadState"))
2604 else if (streq(name, "ActiveState"))
2605 i->active_state = s;
2606 else if (streq(name, "SubState"))
2608 else if (streq(name, "Description"))
2610 else if (streq(name, "FragmentPath"))
2611 i->fragment_path = s;
2612 else if (streq(name, "SourcePath"))
2614 else if (streq(name, "DefaultControlGroup"))
2615 i->default_control_group = s;
2616 else if (streq(name, "StatusText"))
2618 else if (streq(name, "SysFSPath"))
2620 else if (streq(name, "Where"))
2622 else if (streq(name, "What"))
2624 else if (streq(name, "Following"))
2626 else if (streq(name, "UnitFileState"))
2627 i->unit_file_state = s;
2628 else if (streq(name, "Result"))
2635 case DBUS_TYPE_BOOLEAN: {
2638 dbus_message_iter_get_basic(iter, &b);
2640 if (streq(name, "Accept"))
2642 else if (streq(name, "NeedDaemonReload"))
2643 i->need_daemon_reload = b;
2644 else if (streq(name, "ConditionResult"))
2645 i->condition_result = b;
2650 case DBUS_TYPE_UINT32: {
2653 dbus_message_iter_get_basic(iter, &u);
2655 if (streq(name, "MainPID")) {
2657 i->main_pid = (pid_t) u;
2660 } else if (streq(name, "ControlPID"))
2661 i->control_pid = (pid_t) u;
2662 else if (streq(name, "ExecMainPID")) {
2664 i->main_pid = (pid_t) u;
2665 } else if (streq(name, "NAccepted"))
2667 else if (streq(name, "NConnections"))
2668 i->n_connections = u;
2673 case DBUS_TYPE_INT32: {
2676 dbus_message_iter_get_basic(iter, &j);
2678 if (streq(name, "ExecMainCode"))
2679 i->exit_code = (int) j;
2680 else if (streq(name, "ExecMainStatus"))
2681 i->exit_status = (int) j;
2686 case DBUS_TYPE_UINT64: {
2689 dbus_message_iter_get_basic(iter, &u);
2691 if (streq(name, "ExecMainStartTimestamp"))
2692 i->start_timestamp = (usec_t) u;
2693 else if (streq(name, "ExecMainExitTimestamp"))
2694 i->exit_timestamp = (usec_t) u;
2695 else if (streq(name, "ActiveEnterTimestamp"))
2696 i->active_enter_timestamp = (usec_t) u;
2697 else if (streq(name, "InactiveEnterTimestamp"))
2698 i->inactive_enter_timestamp = (usec_t) u;
2699 else if (streq(name, "InactiveExitTimestamp"))
2700 i->inactive_exit_timestamp = (usec_t) u;
2701 else if (streq(name, "InactiveExitTimestampMonotonic"))
2702 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2703 else if (streq(name, "ActiveExitTimestamp"))
2704 i->active_exit_timestamp = (usec_t) u;
2705 else if (streq(name, "ConditionTimestamp"))
2706 i->condition_timestamp = (usec_t) u;
2711 case DBUS_TYPE_ARRAY: {
2713 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2714 startswith(name, "Exec")) {
2715 DBusMessageIter sub;
2717 dbus_message_iter_recurse(iter, &sub);
2718 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2719 ExecStatusInfo *info;
2722 if (!(info = new0(ExecStatusInfo, 1)))
2725 if (!(info->name = strdup(name))) {
2730 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2735 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2737 dbus_message_iter_next(&sub);
2739 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2740 streq(name, "Documentation")) {
2742 DBusMessageIter sub;
2744 dbus_message_iter_recurse(iter, &sub);
2745 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2749 dbus_message_iter_get_basic(&sub, &s);
2751 l = strv_append(i->documentation, s);
2755 strv_free(i->documentation);
2756 i->documentation = l;
2758 dbus_message_iter_next(&sub);
2765 case DBUS_TYPE_STRUCT: {
2767 if (streq(name, "LoadError")) {
2768 DBusMessageIter sub;
2769 const char *n, *message;
2772 dbus_message_iter_recurse(iter, &sub);
2774 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2778 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2782 if (!isempty(message))
2783 i->load_error = message;
2793 static int print_property(const char *name, DBusMessageIter *iter) {
2797 /* This is a low-level property printer, see
2798 * print_status_info() for the nicer output */
2800 if (arg_property && !strv_find(arg_property, name))
2803 switch (dbus_message_iter_get_arg_type(iter)) {
2805 case DBUS_TYPE_STRUCT: {
2806 DBusMessageIter sub;
2807 dbus_message_iter_recurse(iter, &sub);
2809 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2812 dbus_message_iter_get_basic(&sub, &u);
2815 printf("%s=%u\n", name, (unsigned) u);
2817 printf("%s=\n", name);
2820 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2823 dbus_message_iter_get_basic(&sub, &s);
2825 if (arg_all || s[0])
2826 printf("%s=%s\n", name, s);
2829 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2830 const char *a = NULL, *b = NULL;
2832 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2833 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2835 if (arg_all || !isempty(a) || !isempty(b))
2836 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2844 case DBUS_TYPE_ARRAY:
2846 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2847 DBusMessageIter sub, sub2;
2849 dbus_message_iter_recurse(iter, &sub);
2850 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2854 dbus_message_iter_recurse(&sub, &sub2);
2856 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2857 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2858 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2860 dbus_message_iter_next(&sub);
2865 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2866 DBusMessageIter sub, sub2;
2868 dbus_message_iter_recurse(iter, &sub);
2869 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2870 const char *type, *path;
2872 dbus_message_iter_recurse(&sub, &sub2);
2874 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2875 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2876 printf("%s=%s\n", type, path);
2878 dbus_message_iter_next(&sub);
2883 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2884 DBusMessageIter sub, sub2;
2886 dbus_message_iter_recurse(iter, &sub);
2887 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2889 uint64_t value, next_elapse;
2891 dbus_message_iter_recurse(&sub, &sub2);
2893 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2894 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2895 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2896 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2898 printf("%s={ value=%s ; next_elapse=%s }\n",
2900 format_timespan(timespan1, sizeof(timespan1), value),
2901 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2904 dbus_message_iter_next(&sub);
2909 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2910 DBusMessageIter sub, sub2;
2912 dbus_message_iter_recurse(iter, &sub);
2913 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2914 const char *controller, *attr, *value;
2916 dbus_message_iter_recurse(&sub, &sub2);
2918 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
2919 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
2920 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
2922 printf("ControlGroupAttributes={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
2928 dbus_message_iter_next(&sub);
2933 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2934 DBusMessageIter sub;
2936 dbus_message_iter_recurse(iter, &sub);
2937 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2938 ExecStatusInfo info;
2941 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2942 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2943 char _cleanup_free_ *t;
2945 t = strv_join(info.argv, " ");
2947 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2951 yes_no(info.ignore),
2952 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2953 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2954 (unsigned) info. pid,
2955 sigchld_code_to_string(info.code),
2957 info.code == CLD_EXITED ? "" : "/",
2958 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2962 strv_free(info.argv);
2964 dbus_message_iter_next(&sub);
2973 if (generic_print_property(name, iter, arg_all) > 0)
2977 printf("%s=[unprintable]\n", name);
2982 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2983 _cleanup_free_ DBusMessage *reply = NULL;
2984 const char *interface = "";
2986 DBusMessageIter iter, sub, sub2, sub3;
2987 UnitStatusInfo info;
2995 r = bus_method_call_with_reply(
2997 "org.freedesktop.systemd1",
2999 "org.freedesktop.DBus.Properties",
3003 DBUS_TYPE_STRING, &interface,
3008 if (!dbus_message_iter_init(reply, &iter) ||
3009 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3010 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3011 log_error("Failed to parse reply.");
3015 dbus_message_iter_recurse(&iter, &sub);
3022 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3025 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
3026 dbus_message_iter_recurse(&sub, &sub2);
3028 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
3029 dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3030 log_error("Failed to parse reply.");
3034 dbus_message_iter_recurse(&sub2, &sub3);
3036 if (show_properties)
3037 r = print_property(name, &sub3);
3039 r = status_property(name, &sub3, &info);
3041 log_error("Failed to parse reply.");
3045 dbus_message_iter_next(&sub);
3050 if (!show_properties) {
3051 if (streq(verb, "help"))
3052 show_unit_help(&info);
3054 print_status_info(&info);
3057 strv_free(info.documentation);
3059 if (!streq_ptr(info.active_state, "active") &&
3060 !streq_ptr(info.active_state, "reloading") &&
3061 streq(verb, "status"))
3062 /* According to LSB: "program not running" */
3065 while ((p = info.exec)) {
3066 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3067 exec_status_info_free(p);
3073 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3074 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3075 const char *path = NULL;
3076 DBusError _cleanup_dbus_error_free_ error;
3079 dbus_error_init(&error);
3081 r = bus_method_call_with_reply(
3083 "org.freedesktop.systemd1",
3084 "/org/freedesktop/systemd1",
3085 "org.freedesktop.systemd1.Manager",
3089 DBUS_TYPE_UINT32, &pid,
3094 if (!dbus_message_get_args(reply, &error,
3095 DBUS_TYPE_OBJECT_PATH, &path,
3096 DBUS_TYPE_INVALID)) {
3097 log_error("Failed to parse reply: %s", bus_error_message(&error));
3101 r = show_one(verb, bus, path, false, new_line);
3105 static int show_all(const char* verb, DBusConnection *bus, bool show_properties, bool *new_line) {
3106 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3107 _cleanup_free_ struct unit_info *unit_infos = NULL;
3109 const struct unit_info *u;
3112 r = get_unit_list(bus, &reply, &unit_infos, &c);
3116 for (u = unit_infos; u < unit_infos + c; u++) {
3117 char _cleanup_free_ *p = NULL;
3119 if (!output_show_unit(u))
3122 p = unit_dbus_path_from_name(u->id);
3126 printf("%s -> '%s'\n", u->id, p);
3128 r = show_one(verb, bus, p, show_properties, new_line);
3136 static int show(DBusConnection *bus, char **args) {
3138 bool show_properties, show_status, new_line = false;
3144 show_properties = streq(args[0], "show");
3145 show_status = streq(args[0], "status");
3147 if (show_properties)
3148 pager_open_if_enabled();
3150 /* If no argument is specified inspect the manager itself */
3152 if (show_properties && strv_length(args) <= 1)
3153 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3155 if (show_status && strv_length(args) <= 1)
3156 return show_all(args[0], bus, false, &new_line);
3158 STRV_FOREACH(name, args+1) {
3161 if (safe_atou32(*name, &id) < 0) {
3162 _cleanup_free_ char *p = NULL, *n = NULL;
3163 /* Interpret as unit name */
3165 n = unit_name_mangle(*name);
3169 p = unit_dbus_path_from_name(n);
3173 r = show_one(args[0], bus, p, show_properties, &new_line);
3177 } else if (show_properties) {
3178 _cleanup_free_ char *p = NULL;
3180 /* Interpret as job id */
3181 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3184 r = show_one(args[0], bus, p, show_properties, &new_line);
3189 /* Interpret as PID */
3190 r = show_one_by_pid(args[0], bus, id, &new_line);
3199 static int dump(DBusConnection *bus, char **args) {
3200 _cleanup_free_ DBusMessage *reply = NULL;
3205 dbus_error_init(&error);
3207 pager_open_if_enabled();
3209 r = bus_method_call_with_reply(
3211 "org.freedesktop.systemd1",
3212 "/org/freedesktop/systemd1",
3213 "org.freedesktop.systemd1.Manager",
3221 if (!dbus_message_get_args(reply, &error,
3222 DBUS_TYPE_STRING, &text,
3223 DBUS_TYPE_INVALID)) {
3224 log_error("Failed to parse reply: %s", bus_error_message(&error));
3225 dbus_error_free(&error);
3229 fputs(text, stdout);
3233 static int snapshot(DBusConnection *bus, char **args) {
3234 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3237 dbus_bool_t cleanup = FALSE;
3238 DBusMessageIter iter, sub;
3241 *interface = "org.freedesktop.systemd1.Unit",
3243 _cleanup_free_ char *n = NULL;
3245 dbus_error_init(&error);
3247 if (strv_length(args) > 1)
3248 n = snapshot_name_mangle(args[1]);
3254 r = bus_method_call_with_reply (
3256 "org.freedesktop.systemd1",
3257 "/org/freedesktop/systemd1",
3258 "org.freedesktop.systemd1.Manager",
3262 DBUS_TYPE_STRING, &n,
3263 DBUS_TYPE_BOOLEAN, &cleanup,
3268 if (!dbus_message_get_args(reply, &error,
3269 DBUS_TYPE_OBJECT_PATH, &path,
3270 DBUS_TYPE_INVALID)) {
3271 log_error("Failed to parse reply: %s", bus_error_message(&error));
3272 dbus_error_free(&error);
3276 dbus_message_unref(reply);
3279 r = bus_method_call_with_reply (
3281 "org.freedesktop.systemd1",
3283 "org.freedesktop.DBus.Properties",
3287 DBUS_TYPE_STRING, &interface,
3288 DBUS_TYPE_STRING, &property,
3293 if (!dbus_message_iter_init(reply, &iter) ||
3294 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3295 log_error("Failed to parse reply.");
3299 dbus_message_iter_recurse(&iter, &sub);
3301 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3302 log_error("Failed to parse reply.");
3306 dbus_message_iter_get_basic(&sub, &id);
3314 static int delete_snapshot(DBusConnection *bus, char **args) {
3319 STRV_FOREACH(name, args+1) {
3320 _cleanup_free_ char *n = NULL;
3323 n = snapshot_name_mangle(*name);
3327 r = bus_method_call_with_reply(
3329 "org.freedesktop.systemd1",
3330 "/org/freedesktop/systemd1",
3331 "org.freedesktop.systemd1.Manager",
3335 DBUS_TYPE_STRING, &n,
3344 static int daemon_reload(DBusConnection *bus, char **args) {
3349 if (arg_action == ACTION_RELOAD)
3351 else if (arg_action == ACTION_REEXEC)
3352 method = "Reexecute";
3354 assert(arg_action == ACTION_SYSTEMCTL);
3357 streq(args[0], "clear-jobs") ||
3358 streq(args[0], "cancel") ? "ClearJobs" :
3359 streq(args[0], "daemon-reexec") ? "Reexecute" :
3360 streq(args[0], "reset-failed") ? "ResetFailed" :
3361 streq(args[0], "halt") ? "Halt" :
3362 streq(args[0], "poweroff") ? "PowerOff" :
3363 streq(args[0], "reboot") ? "Reboot" :
3364 streq(args[0], "kexec") ? "KExec" :
3365 streq(args[0], "exit") ? "Exit" :
3366 /* "daemon-reload" */ "Reload";
3369 r = bus_method_call_with_reply(
3371 "org.freedesktop.systemd1",
3372 "/org/freedesktop/systemd1",
3373 "org.freedesktop.systemd1.Manager",
3379 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
3380 /* There's always a fallback possible for
3381 * legacy actions. */
3383 else if (r == -ETIMEDOUT && streq(method, "Reexecute"))
3384 /* On reexecution, we expect a disconnect, not
3388 log_error("Failed to issue method call: %s", bus_error_message(&error));
3390 dbus_error_free(&error);
3394 static int reset_failed(DBusConnection *bus, char **args) {
3398 if (strv_length(args) <= 1)
3399 return daemon_reload(bus, args);
3401 STRV_FOREACH(name, args+1) {
3402 _cleanup_free_ char *n;
3404 n = unit_name_mangle(*name);
3408 r = bus_method_call_with_reply(
3410 "org.freedesktop.systemd1",
3411 "/org/freedesktop/systemd1",
3412 "org.freedesktop.systemd1.Manager",
3416 DBUS_TYPE_STRING, &n,
3425 static int show_enviroment(DBusConnection *bus, char **args) {
3426 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3427 DBusMessageIter iter, sub, sub2;
3430 *interface = "org.freedesktop.systemd1.Manager",
3431 *property = "Environment";
3433 pager_open_if_enabled();
3435 r = bus_method_call_with_reply(
3437 "org.freedesktop.systemd1",
3438 "/org/freedesktop/systemd1",
3439 "org.freedesktop.DBus.Properties",
3443 DBUS_TYPE_STRING, &interface,
3444 DBUS_TYPE_STRING, &property,
3449 if (!dbus_message_iter_init(reply, &iter) ||
3450 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3451 log_error("Failed to parse reply.");
3455 dbus_message_iter_recurse(&iter, &sub);
3457 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3458 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3459 log_error("Failed to parse reply.");
3463 dbus_message_iter_recurse(&sub, &sub2);
3465 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3468 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3469 log_error("Failed to parse reply.");
3473 dbus_message_iter_get_basic(&sub2, &text);
3476 dbus_message_iter_next(&sub2);
3482 static int switch_root(DBusConnection *bus, char **args) {
3485 _cleanup_free_ char *init = NULL;
3487 l = strv_length(args);
3488 if (l < 2 || l > 3) {
3489 log_error("Wrong number of arguments.");
3496 init = strdup(args[2]);
3498 parse_env_file("/proc/cmdline", WHITESPACE,
3508 log_debug("switching root - root: %s; init: %s", root, init);
3510 return bus_method_call_with_reply(
3512 "org.freedesktop.systemd1",
3513 "/org/freedesktop/systemd1",
3514 "org.freedesktop.systemd1.Manager",
3518 DBUS_TYPE_STRING, &root,
3519 DBUS_TYPE_STRING, &init,
3523 static int set_environment(DBusConnection *bus, char **args) {
3524 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
3527 DBusMessageIter iter;
3533 dbus_error_init(&error);
3535 method = streq(args[0], "set-environment")
3537 : "UnsetEnvironment";
3539 m = dbus_message_new_method_call(
3540 "org.freedesktop.systemd1",
3541 "/org/freedesktop/systemd1",
3542 "org.freedesktop.systemd1.Manager",
3547 dbus_message_iter_init_append(m, &iter);
3549 r = bus_append_strv_iter(&iter, args + 1);
3553 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3555 log_error("Failed to issue method call: %s", bus_error_message(&error));
3556 dbus_error_free(&error);
3563 static int enable_sysv_units(char **args) {
3566 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
3567 const char *verb = args[0];
3568 unsigned f = 1, t = 1;
3571 if (arg_scope != UNIT_FILE_SYSTEM)
3574 if (!streq(verb, "enable") &&
3575 !streq(verb, "disable") &&
3576 !streq(verb, "is-enabled"))
3579 /* Processes all SysV units, and reshuffles the array so that
3580 * afterwards only the native units remain */
3583 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
3588 for (f = 1; args[f]; f++) {
3591 bool found_native = false, found_sysv;
3593 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3594 char **k, *l, *q = NULL;
3601 if (!endswith(name, ".service"))
3604 if (path_is_absolute(name))
3607 STRV_FOREACH(k, paths.unit_path) {
3610 if (!isempty(arg_root))
3611 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3613 asprintf(&p, "%s/%s", *k, name);
3620 found_native = access(p, F_OK) >= 0;
3631 if (!isempty(arg_root))
3632 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3634 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3640 p[strlen(p) - sizeof(".service") + 1] = 0;
3641 found_sysv = access(p, F_OK) >= 0;
3648 /* Mark this entry, so that we don't try enabling it as native unit */
3649 args[f] = (char*) "";
3651 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3653 if (!isempty(arg_root))
3654 argv[c++] = q = strappend("--root=", arg_root);
3656 argv[c++] = path_get_file_name(p);
3658 streq(verb, "enable") ? "on" :
3659 streq(verb, "disable") ? "off" : "--level=5";
3662 l = strv_join((char**)argv, " ");
3670 log_info("Executing %s", l);
3675 log_error("Failed to fork: %m");
3680 } else if (pid == 0) {
3683 execv(argv[0], (char**) argv);
3684 _exit(EXIT_FAILURE);
3690 j = wait_for_terminate(pid, &status);
3692 log_error("Failed to wait for child: %s", strerror(-r));
3697 if (status.si_code == CLD_EXITED) {
3698 if (streq(verb, "is-enabled")) {
3699 if (status.si_status == 0) {
3708 } else if (status.si_status != 0) {
3719 lookup_paths_free(&paths);
3721 /* Drop all SysV units */
3722 for (f = 1, t = 1; args[f]; f++) {
3724 if (isempty(args[f]))
3727 args[t++] = args[f];
3736 static int mangle_names(char **original_names, char ***mangled_names) {
3737 char **i, **l, **name;
3739 l = new(char*, strv_length(original_names) + 1);
3744 STRV_FOREACH(name, original_names) {
3746 /* When enabling units qualified path names are OK,
3747 * too, hence allow them explicitly. */
3752 *i = unit_name_mangle(*name);
3768 static int enable_unit(DBusConnection *bus, char **args) {
3769 const char *verb = args[0];
3770 UnitFileChange *changes = NULL;
3771 unsigned n_changes = 0, i;
3772 int carries_install_info = -1;
3773 DBusMessage _cleanup_dbus_message_unref_ *m = NULL, *reply = NULL;
3775 DBusError _cleanup_dbus_error_free_ error;
3776 char _cleanup_strv_free_ **mangled_names = NULL;
3778 dbus_error_init(&error);
3780 r = enable_sysv_units(args);
3787 if (!bus || avoid_bus()) {
3788 if (streq(verb, "enable")) {
3789 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3790 carries_install_info = r;
3791 } else if (streq(verb, "disable"))
3792 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3793 else if (streq(verb, "reenable")) {
3794 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3795 carries_install_info = r;
3796 } else if (streq(verb, "link"))
3797 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3798 else if (streq(verb, "preset")) {
3799 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3800 carries_install_info = r;
3801 } else if (streq(verb, "mask"))
3802 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3803 else if (streq(verb, "unmask"))
3804 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3806 assert_not_reached("Unknown verb");
3809 log_error("Operation failed: %s", strerror(-r));
3814 for (i = 0; i < n_changes; i++) {
3815 if (changes[i].type == UNIT_FILE_SYMLINK)
3816 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
3818 log_info("rm '%s'", changes[i].path);
3825 bool send_force = true, expect_carries_install_info = false;
3827 DBusMessageIter iter, sub, sub2;
3829 if (streq(verb, "enable")) {
3830 method = "EnableUnitFiles";
3831 expect_carries_install_info = true;
3832 } else if (streq(verb, "disable")) {
3833 method = "DisableUnitFiles";
3835 } else if (streq(verb, "reenable")) {
3836 method = "ReenableUnitFiles";
3837 expect_carries_install_info = true;
3838 } else if (streq(verb, "link"))
3839 method = "LinkUnitFiles";
3840 else if (streq(verb, "preset")) {
3841 method = "PresetUnitFiles";
3842 expect_carries_install_info = true;
3843 } else if (streq(verb, "mask"))
3844 method = "MaskUnitFiles";
3845 else if (streq(verb, "unmask")) {
3846 method = "UnmaskUnitFiles";
3849 assert_not_reached("Unknown verb");
3851 m = dbus_message_new_method_call(
3852 "org.freedesktop.systemd1",
3853 "/org/freedesktop/systemd1",
3854 "org.freedesktop.systemd1.Manager",
3861 dbus_message_iter_init_append(m, &iter);
3863 r = mangle_names(args+1, &mangled_names);
3867 r = bus_append_strv_iter(&iter, mangled_names);
3869 log_error("Failed to append unit files.");
3874 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
3875 log_error("Failed to append runtime boolean.");
3883 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
3884 log_error("Failed to append force boolean.");
3890 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3892 log_error("Failed to issue method call: %s", bus_error_message(&error));
3897 if (!dbus_message_iter_init(reply, &iter)) {
3898 log_error("Failed to initialize iterator.");
3902 if (expect_carries_install_info) {
3903 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
3905 log_error("Failed to parse reply.");
3909 carries_install_info = b;
3912 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3913 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
3914 log_error("Failed to parse reply.");
3919 dbus_message_iter_recurse(&iter, &sub);
3920 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3921 const char *type, *path, *source;
3923 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
3924 log_error("Failed to parse reply.");
3929 dbus_message_iter_recurse(&sub, &sub2);
3931 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
3932 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
3933 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
3934 log_error("Failed to parse reply.");
3940 if (streq(type, "symlink"))
3941 log_info("ln -s '%s' '%s'", source, path);
3943 log_info("rm '%s'", path);
3946 dbus_message_iter_next(&sub);
3949 /* Try to reload if enabeld */
3951 r = daemon_reload(bus, args);
3954 if (carries_install_info == 0)
3955 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
3956 "using systemctl.\n"
3957 "Possible reasons for having this kind of units are:\n"
3958 "1) A unit may be statically enabled by being symlinked from another unit's\n"
3959 " .wants/ or .requires/ directory.\n"
3960 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
3961 " a requirement dependency on it.\n"
3962 "3) A unit may be started when needed via activation (socket, path, timer,\n"
3963 " D-Bus, udev, scripted systemctl call, ...).\n");
3966 unit_file_changes_free(changes, n_changes);
3971 static int unit_is_enabled(DBusConnection *bus, char **args) {
3972 DBusError _cleanup_dbus_error_free_ error;
3974 DBusMessage _cleanup_dbus_message_unref_ *reply = NULL;
3979 dbus_error_init(&error);
3981 r = enable_sysv_units(args);
3987 if (!bus || avoid_bus()) {
3989 STRV_FOREACH(name, args+1) {
3990 UnitFileState state;
3992 n = unit_name_mangle(*name);
3996 state = unit_file_get_state(arg_scope, arg_root, n);
4003 if (state == UNIT_FILE_ENABLED ||
4004 state == UNIT_FILE_ENABLED_RUNTIME ||
4005 state == UNIT_FILE_STATIC)
4009 puts(unit_file_state_to_string(state));
4013 STRV_FOREACH(name, args+1) {
4016 n = unit_name_mangle(*name);
4020 r = bus_method_call_with_reply (
4022 "org.freedesktop.systemd1",
4023 "/org/freedesktop/systemd1",
4024 "org.freedesktop.systemd1.Manager",
4028 DBUS_TYPE_STRING, &n,
4036 if (!dbus_message_get_args(reply, &error,
4037 DBUS_TYPE_STRING, &s,
4038 DBUS_TYPE_INVALID)) {
4039 log_error("Failed to parse reply: %s", bus_error_message(&error));
4043 dbus_message_unref(reply);
4046 if (streq(s, "enabled") ||
4047 streq(s, "enabled-runtime") ||
4056 return enabled ? 0 : 1;
4059 static int systemctl_help(void) {
4061 pager_open_if_enabled();
4063 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4064 "Query or send control commands to the systemd manager.\n\n"
4065 " -h --help Show this help\n"
4066 " --version Show package version\n"
4067 " -t --type=TYPE List only units of a particular type\n"
4068 " -p --property=NAME Show only properties by this name\n"
4069 " -a --all Show all units/properties, including dead/empty ones\n"
4070 " --failed Show only failed units\n"
4071 " --full Don't ellipsize unit names on output\n"
4072 " --fail When queueing a new job, fail if conflicting jobs are\n"
4074 " --ignore-dependencies\n"
4075 " When queueing a new job, ignore all its dependencies\n"
4076 " -i --ignore-inhibitors\n"
4077 " When shutting down or sleeping, ignore inhibitors\n"
4078 " --kill-who=WHO Who to send signal to\n"
4079 " -s --signal=SIGNAL Which signal to send\n"
4080 " -H --host=[USER@]HOST\n"
4081 " Show information for remote host\n"
4082 " -P --privileged Acquire privileges before execution\n"
4083 " -q --quiet Suppress output\n"
4084 " --no-block Do not wait until operation finished\n"
4085 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4086 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4088 " --no-legend Do not print a legend (column headers and hints)\n"
4089 " --no-pager Do not pipe output into a pager\n"
4090 " --no-ask-password\n"
4091 " Do not ask for system passwords\n"
4092 " --system Connect to system manager\n"
4093 " --user Connect to user service manager\n"
4094 " --global Enable/disable unit files globally\n"
4095 " -f --force When enabling unit files, override existing symlinks\n"
4096 " When shutting down, execute action immediately\n"
4097 " --root=PATH Enable unit files in the specified root directory\n"
4098 " --runtime Enable unit files only temporarily until next reboot\n"
4099 " -n --lines=INTEGER Journal entries to show\n"
4100 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4101 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4103 " list-units List loaded units\n"
4104 " start [NAME...] Start (activate) one or more units\n"
4105 " stop [NAME...] Stop (deactivate) one or more units\n"
4106 " reload [NAME...] Reload one or more units\n"
4107 " restart [NAME...] Start or restart one or more units\n"
4108 " try-restart [NAME...] Restart one or more units if active\n"
4109 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4110 " otherwise start or restart\n"
4111 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4112 " otherwise restart if active\n"
4113 " isolate [NAME] Start one unit and stop all others\n"
4114 " kill [NAME...] Send signal to processes of a unit\n"
4115 " is-active [NAME...] Check whether units are active\n"
4116 " is-failed [NAME...] Check whether units are failed\n"
4117 " status [NAME...|PID...] Show runtime status of one or more units\n"
4118 " show [NAME...|JOB...] Show properties of one or more\n"
4119 " units/jobs or the manager\n"
4120 " help [NAME...|PID...] Show manual for one or more units\n"
4121 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4123 " get-cgroup-attr [NAME] [ATTR] ...\n"
4124 " Get control group attrubute\n"
4125 " set-cgroup-attr [NAME] [ATTR] [VALUE] ...\n"
4126 " Set control group attribute\n"
4127 " unset-cgroup-attr [NAME] [ATTR...]\n"
4128 " Unset control group attribute\n"
4129 " set-cgroup [NAME] [CGROUP...] Add unit to a control group\n"
4130 " unset-cgroup [NAME] [CGROUP...] Remove unit from a control group\n"
4131 " load [NAME...] Load one or more units\n"
4132 " list-dependencies [NAME] Recursively show units which are required\n"
4133 " or wanted by this unit\n\n"
4134 "Unit File Commands:\n"
4135 " list-unit-files List installed unit files\n"
4136 " enable [NAME...] Enable one or more unit files\n"
4137 " disable [NAME...] Disable one or more unit files\n"
4138 " reenable [NAME...] Reenable one or more unit files\n"
4139 " preset [NAME...] Enable/disable one or more unit files\n"
4140 " based on preset configuration\n"
4141 " mask [NAME...] Mask one or more units\n"
4142 " unmask [NAME...] Unmask one or more units\n"
4143 " link [PATH...] Link one or more units files into\n"
4144 " the search path\n"
4145 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4147 " list-jobs List jobs\n"
4148 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4149 "Status Commands:\n"
4150 " dump Dump server status\n"
4151 "Snapshot Commands:\n"
4152 " snapshot [NAME] Create a snapshot\n"
4153 " delete [NAME...] Remove one or more snapshots\n\n"
4154 "Environment Commands:\n"
4155 " show-environment Dump environment\n"
4156 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4157 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4158 "Manager Lifecycle Commands:\n"
4159 " daemon-reload Reload systemd manager configuration\n"
4160 " daemon-reexec Reexecute systemd manager\n\n"
4161 "System Commands:\n"
4162 " default Enter system default mode\n"
4163 " rescue Enter system rescue mode\n"
4164 " emergency Enter system emergency mode\n"
4165 " halt Shut down and halt the system\n"
4166 " poweroff Shut down and power-off the system\n"
4167 " reboot Shut down and reboot the system\n"
4168 " kexec Shut down and reboot the system with kexec\n"
4169 " exit Request user instance exit\n"
4170 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4171 " suspend Suspend the system\n"
4172 " hibernate Hibernate the system\n"
4173 " hybrid-sleep Hibernate and suspend the system\n",
4174 program_invocation_short_name);
4179 static int halt_help(void) {
4181 printf("%s [OPTIONS...]\n\n"
4182 "%s the system.\n\n"
4183 " --help Show this help\n"
4184 " --halt Halt the machine\n"
4185 " -p --poweroff Switch off the machine\n"
4186 " --reboot Reboot the machine\n"
4187 " -f --force Force immediate halt/power-off/reboot\n"
4188 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4189 " -d --no-wtmp Don't write wtmp record\n"
4190 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4191 program_invocation_short_name,
4192 arg_action == ACTION_REBOOT ? "Reboot" :
4193 arg_action == ACTION_POWEROFF ? "Power off" :
4199 static int shutdown_help(void) {
4201 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4202 "Shut down the system.\n\n"
4203 " --help Show this help\n"
4204 " -H --halt Halt the machine\n"
4205 " -P --poweroff Power-off the machine\n"
4206 " -r --reboot Reboot the machine\n"
4207 " -h Equivalent to --poweroff, overridden by --halt\n"
4208 " -k Don't halt/power-off/reboot, just send warnings\n"
4209 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4210 " -c Cancel a pending shutdown\n",
4211 program_invocation_short_name);
4216 static int telinit_help(void) {
4218 printf("%s [OPTIONS...] {COMMAND}\n\n"
4219 "Send control commands to the init daemon.\n\n"
4220 " --help Show this help\n"
4221 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4223 " 0 Power-off the machine\n"
4224 " 6 Reboot the machine\n"
4225 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4226 " 1, s, S Enter rescue mode\n"
4227 " q, Q Reload init daemon configuration\n"
4228 " u, U Reexecute init daemon\n",
4229 program_invocation_short_name);
4234 static int runlevel_help(void) {
4236 printf("%s [OPTIONS...]\n\n"
4237 "Prints the previous and current runlevel of the init system.\n\n"
4238 " --help Show this help\n",
4239 program_invocation_short_name);
4244 static int help_types(void) {
4247 puts("Available unit types:");
4248 for(i = UNIT_SERVICE; i < _UNIT_TYPE_MAX; i++)
4249 if (unit_type_table[i])
4250 puts(unit_type_table[i]);
4252 puts("\nAvailable unit load states: ");
4253 for(i = UNIT_STUB; i < _UNIT_LOAD_STATE_MAX; i++)
4254 if (unit_type_table[i])
4255 puts(unit_load_state_table[i]);
4260 static int systemctl_parse_argv(int argc, char *argv[]) {
4265 ARG_IGNORE_DEPENDENCIES,
4278 ARG_NO_ASK_PASSWORD,
4284 static const struct option options[] = {
4285 { "help", no_argument, NULL, 'h' },
4286 { "version", no_argument, NULL, ARG_VERSION },
4287 { "type", required_argument, NULL, 't' },
4288 { "property", required_argument, NULL, 'p' },
4289 { "all", no_argument, NULL, 'a' },
4290 { "failed", no_argument, NULL, ARG_FAILED },
4291 { "full", no_argument, NULL, ARG_FULL },
4292 { "fail", no_argument, NULL, ARG_FAIL },
4293 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE },
4294 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4295 { "ignore-inhibitors", no_argument, NULL, 'i' },
4296 { "user", no_argument, NULL, ARG_USER },
4297 { "system", no_argument, NULL, ARG_SYSTEM },
4298 { "global", no_argument, NULL, ARG_GLOBAL },
4299 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4300 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4301 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4302 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4303 { "quiet", no_argument, NULL, 'q' },
4304 { "root", required_argument, NULL, ARG_ROOT },
4305 { "force", no_argument, NULL, ARG_FORCE },
4306 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4307 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4308 { "signal", required_argument, NULL, 's' },
4309 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4310 { "host", required_argument, NULL, 'H' },
4311 { "privileged",no_argument, NULL, 'P' },
4312 { "runtime", no_argument, NULL, ARG_RUNTIME },
4313 { "lines", required_argument, NULL, 'n' },
4314 { "output", required_argument, NULL, 'o' },
4315 { NULL, 0, NULL, 0 }
4323 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:i", options, NULL)) >= 0) {
4332 puts(PACKAGE_STRING);
4333 puts(SYSTEMD_FEATURES);
4337 if (streq(optarg, "help")) {
4342 if (unit_type_from_string(optarg) >= 0) {
4346 if (unit_load_state_from_string(optarg) >= 0) {
4347 arg_load_state = optarg;
4350 log_error("Unkown unit type or load state '%s'.",
4352 log_info("Use -t help to see a list of allowed values.");
4357 /* Make sure that if the empty property list
4358 was specified, we won't show any properties. */
4359 const char *source = isempty(optarg) ? " " : optarg;
4361 FOREACH_WORD_SEPARATOR(word, size, source, ",", state) {
4362 char _cleanup_free_ *prop;
4365 prop = strndup(word, size);
4369 tmp = strv_append(arg_property, prop);
4373 strv_free(arg_property);
4377 /* If the user asked for a particular
4378 * property, show it to him, even if it is
4390 arg_job_mode = "fail";
4393 case ARG_IRREVERSIBLE:
4394 arg_job_mode = "replace-irreversibly";
4397 case ARG_IGNORE_DEPENDENCIES:
4398 arg_job_mode = "ignore-dependencies";
4402 arg_scope = UNIT_FILE_USER;
4406 arg_scope = UNIT_FILE_SYSTEM;
4410 arg_scope = UNIT_FILE_GLOBAL;
4414 arg_no_block = true;
4418 arg_no_legend = true;
4422 arg_no_pager = true;
4454 arg_no_reload = true;
4458 arg_kill_who = optarg;
4462 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4463 log_error("Failed to parse signal string %s.", optarg);
4468 case ARG_NO_ASK_PASSWORD:
4469 arg_ask_password = false;
4473 arg_transport = TRANSPORT_POLKIT;
4477 arg_transport = TRANSPORT_SSH;
4486 if (safe_atou(optarg, &arg_lines) < 0) {
4487 log_error("Failed to parse lines '%s'", optarg);
4493 arg_output = output_mode_from_string(optarg);
4494 if (arg_output < 0) {
4495 log_error("Unknown output '%s'.", optarg);
4501 arg_ignore_inhibitors = true;
4508 log_error("Unknown option code '%c'.", c);
4513 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4514 log_error("Cannot access user instance remotely.");
4521 static int halt_parse_argv(int argc, char *argv[]) {
4530 static const struct option options[] = {
4531 { "help", no_argument, NULL, ARG_HELP },
4532 { "halt", no_argument, NULL, ARG_HALT },
4533 { "poweroff", no_argument, NULL, 'p' },
4534 { "reboot", no_argument, NULL, ARG_REBOOT },
4535 { "force", no_argument, NULL, 'f' },
4536 { "wtmp-only", no_argument, NULL, 'w' },
4537 { "no-wtmp", no_argument, NULL, 'd' },
4538 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4539 { NULL, 0, NULL, 0 }
4547 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4548 if (runlevel == '0' || runlevel == '6')
4551 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4559 arg_action = ACTION_HALT;
4563 if (arg_action != ACTION_REBOOT)
4564 arg_action = ACTION_POWEROFF;
4568 arg_action = ACTION_REBOOT;
4590 /* Compatibility nops */
4597 log_error("Unknown option code '%c'.", c);
4602 if (optind < argc) {
4603 log_error("Too many arguments.");
4610 static int parse_time_spec(const char *t, usec_t *_u) {
4614 if (streq(t, "now"))
4616 else if (!strchr(t, ':')) {
4619 if (safe_atou64(t, &u) < 0)
4622 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4631 hour = strtol(t, &e, 10);
4632 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
4635 minute = strtol(e+1, &e, 10);
4636 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
4639 n = now(CLOCK_REALTIME);
4640 s = (time_t) (n / USEC_PER_SEC);
4643 assert_se(localtime_r(&s, &tm));
4645 tm.tm_hour = (int) hour;
4646 tm.tm_min = (int) minute;
4649 assert_se(s = mktime(&tm));
4651 *_u = (usec_t) s * USEC_PER_SEC;
4654 *_u += USEC_PER_DAY;
4660 static int shutdown_parse_argv(int argc, char *argv[]) {
4667 static const struct option options[] = {
4668 { "help", no_argument, NULL, ARG_HELP },
4669 { "halt", no_argument, NULL, 'H' },
4670 { "poweroff", no_argument, NULL, 'P' },
4671 { "reboot", no_argument, NULL, 'r' },
4672 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4673 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4674 { NULL, 0, NULL, 0 }
4682 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4690 arg_action = ACTION_HALT;
4694 arg_action = ACTION_POWEROFF;
4699 arg_action = ACTION_KEXEC;
4701 arg_action = ACTION_REBOOT;
4705 arg_action = ACTION_KEXEC;
4709 if (arg_action != ACTION_HALT)
4710 arg_action = ACTION_POWEROFF;
4723 /* Compatibility nops */
4727 arg_action = ACTION_CANCEL_SHUTDOWN;
4734 log_error("Unknown option code '%c'.", c);
4739 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
4740 r = parse_time_spec(argv[optind], &arg_when);
4742 log_error("Failed to parse time specification: %s", argv[optind]);
4746 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4748 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
4749 /* No time argument for shutdown cancel */
4750 arg_wall = argv + optind;
4751 else if (argc > optind + 1)
4752 /* We skip the time argument */
4753 arg_wall = argv + optind + 1;
4760 static int telinit_parse_argv(int argc, char *argv[]) {
4767 static const struct option options[] = {
4768 { "help", no_argument, NULL, ARG_HELP },
4769 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4770 { NULL, 0, NULL, 0 }
4773 static const struct {
4777 { '0', ACTION_POWEROFF },
4778 { '6', ACTION_REBOOT },
4779 { '1', ACTION_RESCUE },
4780 { '2', ACTION_RUNLEVEL2 },
4781 { '3', ACTION_RUNLEVEL3 },
4782 { '4', ACTION_RUNLEVEL4 },
4783 { '5', ACTION_RUNLEVEL5 },
4784 { 's', ACTION_RESCUE },
4785 { 'S', ACTION_RESCUE },
4786 { 'q', ACTION_RELOAD },
4787 { 'Q', ACTION_RELOAD },
4788 { 'u', ACTION_REEXEC },
4789 { 'U', ACTION_REEXEC }
4798 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4813 log_error("Unknown option code '%c'.", c);
4818 if (optind >= argc) {
4823 if (optind + 1 < argc) {
4824 log_error("Too many arguments.");
4828 if (strlen(argv[optind]) != 1) {
4829 log_error("Expected single character argument.");
4833 for (i = 0; i < ELEMENTSOF(table); i++)
4834 if (table[i].from == argv[optind][0])
4837 if (i >= ELEMENTSOF(table)) {
4838 log_error("Unknown command '%s'.", argv[optind]);
4842 arg_action = table[i].to;
4849 static int runlevel_parse_argv(int argc, char *argv[]) {
4855 static const struct option options[] = {
4856 { "help", no_argument, NULL, ARG_HELP },
4857 { NULL, 0, NULL, 0 }
4865 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4876 log_error("Unknown option code '%c'.", c);
4881 if (optind < argc) {
4882 log_error("Too many arguments.");
4889 static int parse_argv(int argc, char *argv[]) {
4893 if (program_invocation_short_name) {
4895 if (strstr(program_invocation_short_name, "halt")) {
4896 arg_action = ACTION_HALT;
4897 return halt_parse_argv(argc, argv);
4898 } else if (strstr(program_invocation_short_name, "poweroff")) {
4899 arg_action = ACTION_POWEROFF;
4900 return halt_parse_argv(argc, argv);
4901 } else if (strstr(program_invocation_short_name, "reboot")) {
4903 arg_action = ACTION_KEXEC;
4905 arg_action = ACTION_REBOOT;
4906 return halt_parse_argv(argc, argv);
4907 } else if (strstr(program_invocation_short_name, "shutdown")) {
4908 arg_action = ACTION_POWEROFF;
4909 return shutdown_parse_argv(argc, argv);
4910 } else if (strstr(program_invocation_short_name, "init")) {
4912 if (sd_booted() > 0) {
4913 arg_action = ACTION_INVALID;
4914 return telinit_parse_argv(argc, argv);
4916 /* Hmm, so some other init system is
4917 * running, we need to forward this
4918 * request to it. For now we simply
4919 * guess that it is Upstart. */
4921 execv(TELINIT, argv);
4923 log_error("Couldn't find an alternative telinit implementation to spawn.");
4927 } else if (strstr(program_invocation_short_name, "runlevel")) {
4928 arg_action = ACTION_RUNLEVEL;
4929 return runlevel_parse_argv(argc, argv);
4933 arg_action = ACTION_SYSTEMCTL;
4934 return systemctl_parse_argv(argc, argv);
4937 static int action_to_runlevel(void) {
4939 static const char table[_ACTION_MAX] = {
4940 [ACTION_HALT] = '0',
4941 [ACTION_POWEROFF] = '0',
4942 [ACTION_REBOOT] = '6',
4943 [ACTION_RUNLEVEL2] = '2',
4944 [ACTION_RUNLEVEL3] = '3',
4945 [ACTION_RUNLEVEL4] = '4',
4946 [ACTION_RUNLEVEL5] = '5',
4947 [ACTION_RESCUE] = '1'
4950 assert(arg_action < _ACTION_MAX);
4952 return table[arg_action];
4955 static int talk_upstart(void) {
4956 DBusMessage _cleanup_dbus_message_unref_ *m = NULL, *reply = NULL;
4957 DBusError _cleanup_dbus_error_free_ error;
4958 int previous, rl, r;
4960 env1_buf[] = "RUNLEVEL=X",
4961 env2_buf[] = "PREVLEVEL=X";
4962 char *env1 = env1_buf, *env2 = env2_buf;
4963 const char *emit = "runlevel";
4964 dbus_bool_t b_false = FALSE;
4965 DBusMessageIter iter, sub;
4966 DBusConnection *bus;
4968 dbus_error_init(&error);
4970 if (!(rl = action_to_runlevel()))
4973 if (utmp_get_runlevel(&previous, NULL) < 0)
4976 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
4977 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4982 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
4987 if ((r = bus_check_peercred(bus)) < 0) {
4988 log_error("Failed to verify owner of bus.");
4992 if (!(m = dbus_message_new_method_call(
4993 "com.ubuntu.Upstart",
4994 "/com/ubuntu/Upstart",
4995 "com.ubuntu.Upstart0_6",
4998 log_error("Could not allocate message.");
5003 dbus_message_iter_init_append(m, &iter);
5005 env1_buf[sizeof(env1_buf)-2] = rl;
5006 env2_buf[sizeof(env2_buf)-2] = previous;
5008 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5009 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5010 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5011 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5012 !dbus_message_iter_close_container(&iter, &sub) ||
5013 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5014 log_error("Could not append arguments to message.");
5019 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5021 if (bus_error_is_no_service(&error)) {
5026 log_error("Failed to issue method call: %s", bus_error_message(&error));
5035 dbus_connection_flush(bus);
5036 dbus_connection_close(bus);
5037 dbus_connection_unref(bus);
5043 static int talk_initctl(void) {
5044 struct init_request request = {0};
5046 int _cleanup_close_ fd = -1;
5049 rl = action_to_runlevel();
5053 request.magic = INIT_MAGIC;
5054 request.sleeptime = 0;
5055 request.cmd = INIT_CMD_RUNLVL;
5056 request.runlevel = rl;
5058 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5060 if (errno == ENOENT)
5063 log_error("Failed to open "INIT_FIFO": %m");
5068 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5070 log_error("Failed to write to "INIT_FIFO": %m");
5071 return errno ? -errno : -EIO;
5077 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5079 static const struct {
5087 int (* const dispatch)(DBusConnection *bus, char **args);
5089 { "list-units", LESS, 1, list_units },
5090 { "list-unit-files", EQUAL, 1, list_unit_files },
5091 { "list-jobs", EQUAL, 1, list_jobs },
5092 { "clear-jobs", EQUAL, 1, daemon_reload },
5093 { "load", MORE, 2, load_unit },
5094 { "cancel", MORE, 2, cancel_job },
5095 { "start", MORE, 2, start_unit },
5096 { "stop", MORE, 2, start_unit },
5097 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5098 { "reload", MORE, 2, start_unit },
5099 { "restart", MORE, 2, start_unit },
5100 { "try-restart", MORE, 2, start_unit },
5101 { "reload-or-restart", MORE, 2, start_unit },
5102 { "reload-or-try-restart", MORE, 2, start_unit },
5103 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5104 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5105 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5106 { "isolate", EQUAL, 2, start_unit },
5107 { "set-cgroup", MORE, 3, set_cgroup },
5108 { "unset-cgroup", MORE, 3, set_cgroup },
5109 { "get-cgroup-attr", MORE, 3, get_cgroup_attr },
5110 { "set-cgroup-attr", MORE, 4, set_cgroup_attr },
5111 { "unset-cgroup-attr", MORE, 3, set_cgroup },
5112 { "kill", MORE, 2, kill_unit },
5113 { "is-active", MORE, 2, check_unit_active },
5114 { "check", MORE, 2, check_unit_active },
5115 { "is-failed", MORE, 2, check_unit_failed },
5116 { "show", MORE, 1, show },
5117 { "status", MORE, 1, show },
5118 { "help", MORE, 2, show },
5119 { "dump", EQUAL, 1, dump },
5120 { "snapshot", LESS, 2, snapshot },
5121 { "delete", MORE, 2, delete_snapshot },
5122 { "daemon-reload", EQUAL, 1, daemon_reload },
5123 { "daemon-reexec", EQUAL, 1, daemon_reload },
5124 { "show-environment", EQUAL, 1, show_enviroment },
5125 { "set-environment", MORE, 2, set_environment },
5126 { "unset-environment", MORE, 2, set_environment },
5127 { "halt", EQUAL, 1, start_special },
5128 { "poweroff", EQUAL, 1, start_special },
5129 { "reboot", EQUAL, 1, start_special },
5130 { "kexec", EQUAL, 1, start_special },
5131 { "suspend", EQUAL, 1, start_special },
5132 { "hibernate", EQUAL, 1, start_special },
5133 { "hybrid-sleep", EQUAL, 1, start_special },
5134 { "default", EQUAL, 1, start_special },
5135 { "rescue", EQUAL, 1, start_special },
5136 { "emergency", EQUAL, 1, start_special },
5137 { "exit", EQUAL, 1, start_special },
5138 { "reset-failed", MORE, 1, reset_failed },
5139 { "enable", MORE, 2, enable_unit },
5140 { "disable", MORE, 2, enable_unit },
5141 { "is-enabled", MORE, 2, unit_is_enabled },
5142 { "reenable", MORE, 2, enable_unit },
5143 { "preset", MORE, 2, enable_unit },
5144 { "mask", MORE, 2, enable_unit },
5145 { "unmask", MORE, 2, enable_unit },
5146 { "link", MORE, 2, enable_unit },
5147 { "switch-root", MORE, 2, switch_root },
5148 { "list-dependencies", LESS, 2, list_dependencies },
5158 left = argc - optind;
5161 /* Special rule: no arguments means "list-units" */
5164 if (streq(argv[optind], "help") && !argv[optind+1]) {
5165 log_error("This command expects one or more "
5166 "unit names. Did you mean --help?");
5170 for (i = 0; i < ELEMENTSOF(verbs); i++)
5171 if (streq(argv[optind], verbs[i].verb))
5174 if (i >= ELEMENTSOF(verbs)) {
5175 log_error("Unknown operation '%s'.", argv[optind]);
5180 switch (verbs[i].argc_cmp) {
5183 if (left != verbs[i].argc) {
5184 log_error("Invalid number of arguments.");
5191 if (left < verbs[i].argc) {
5192 log_error("Too few arguments.");
5199 if (left > verbs[i].argc) {
5200 log_error("Too many arguments.");
5207 assert_not_reached("Unknown comparison operator.");
5210 /* Require a bus connection for all operations but
5212 if (!streq(verbs[i].verb, "enable") &&
5213 !streq(verbs[i].verb, "disable") &&
5214 !streq(verbs[i].verb, "is-enabled") &&
5215 !streq(verbs[i].verb, "list-unit-files") &&
5216 !streq(verbs[i].verb, "reenable") &&
5217 !streq(verbs[i].verb, "preset") &&
5218 !streq(verbs[i].verb, "mask") &&
5219 !streq(verbs[i].verb, "unmask") &&
5220 !streq(verbs[i].verb, "link")) {
5222 if (running_in_chroot() > 0) {
5223 log_info("Running in chroot, ignoring request.");
5227 if (((!streq(verbs[i].verb, "reboot") &&
5228 !streq(verbs[i].verb, "halt") &&
5229 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5230 log_error("Failed to get D-Bus connection: %s",
5231 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5237 if (!bus && !avoid_bus()) {
5238 log_error("Failed to get D-Bus connection: %s",
5239 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5244 return verbs[i].dispatch(bus, argv + optind);
5247 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5248 int _cleanup_close_ fd;
5249 struct msghdr msghdr;
5250 struct iovec iovec[2];
5251 union sockaddr_union sockaddr;
5252 struct sd_shutdown_command c;
5254 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5261 c.dry_run = dry_run;
5265 sockaddr.sa.sa_family = AF_UNIX;
5266 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5269 msghdr.msg_name = &sockaddr;
5270 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5273 iovec[0].iov_base = (char*) &c;
5274 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5276 if (isempty(message))
5277 msghdr.msg_iovlen = 1;
5279 iovec[1].iov_base = (char*) message;
5280 iovec[1].iov_len = strlen(message);
5281 msghdr.msg_iovlen = 2;
5283 msghdr.msg_iov = iovec;
5285 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
5291 static int reload_with_fallback(DBusConnection *bus) {
5294 /* First, try systemd via D-Bus. */
5295 if (daemon_reload(bus, NULL) >= 0)
5299 /* Nothing else worked, so let's try signals */
5300 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5302 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5303 log_error("kill() failed: %m");
5310 static int start_with_fallback(DBusConnection *bus) {
5313 /* First, try systemd via D-Bus. */
5314 if (start_unit(bus, NULL) >= 0)
5318 /* Hmm, talking to systemd via D-Bus didn't work. Then
5319 * let's try to talk to Upstart via D-Bus. */
5320 if (talk_upstart() > 0)
5323 /* Nothing else worked, so let's try
5325 if (talk_initctl() > 0)
5328 log_error("Failed to talk to init daemon.");
5332 warn_wall(arg_action);
5336 static _noreturn_ void halt_now(enum action a) {
5338 /* Make sure C-A-D is handled by the kernel from this
5340 reboot(RB_ENABLE_CAD);
5345 log_info("Halting.");
5346 reboot(RB_HALT_SYSTEM);
5349 case ACTION_POWEROFF:
5350 log_info("Powering off.");
5351 reboot(RB_POWER_OFF);
5355 log_info("Rebooting.");
5356 reboot(RB_AUTOBOOT);
5360 assert_not_reached("Unknown halt action.");
5363 assert_not_reached("Uh? This shouldn't happen.");
5366 static int halt_main(DBusConnection *bus) {
5369 r = check_inhibitors(bus, arg_action);
5373 if (geteuid() != 0) {
5374 /* Try logind if we are a normal user and no special
5375 * mode applies. Maybe PolicyKit allows us to shutdown
5378 if (arg_when <= 0 &&
5381 (arg_action == ACTION_POWEROFF ||
5382 arg_action == ACTION_REBOOT)) {
5383 r = reboot_with_logind(bus, arg_action);
5388 log_error("Must be root.");
5393 char _cleanup_free_ *m;
5395 m = strv_join(arg_wall, " ");
5396 r = send_shutdownd(arg_when,
5397 arg_action == ACTION_HALT ? 'H' :
5398 arg_action == ACTION_POWEROFF ? 'P' :
5399 arg_action == ACTION_KEXEC ? 'K' :
5406 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5408 char date[FORMAT_TIMESTAMP_MAX];
5410 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5411 format_timestamp(date, sizeof(date), arg_when));
5416 if (!arg_dry && !arg_force)
5417 return start_with_fallback(bus);
5420 if (sd_booted() > 0)
5421 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5423 r = utmp_put_shutdown();
5425 log_warning("Failed to write utmp record: %s", strerror(-r));
5432 halt_now(arg_action);
5433 /* We should never reach this. */
5437 static int runlevel_main(void) {
5438 int r, runlevel, previous;
5440 r = utmp_get_runlevel(&runlevel, &previous);
5447 previous <= 0 ? 'N' : previous,
5448 runlevel <= 0 ? 'N' : runlevel);
5453 int main(int argc, char*argv[]) {
5454 int r, retval = EXIT_FAILURE;
5455 DBusConnection *bus = NULL;
5456 DBusError _cleanup_dbus_error_free_ error;
5458 dbus_error_init(&error);
5460 setlocale(LC_ALL, "");
5461 log_parse_environment();
5464 r = parse_argv(argc, argv);
5468 retval = EXIT_SUCCESS;
5472 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5473 * let's shortcut this */
5474 if (arg_action == ACTION_RUNLEVEL) {
5475 r = runlevel_main();
5476 retval = r < 0 ? EXIT_FAILURE : r;
5480 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5481 log_info("Running in chroot, ignoring request.");
5487 if (arg_transport == TRANSPORT_NORMAL)
5488 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5489 else if (arg_transport == TRANSPORT_POLKIT) {
5490 bus_connect_system_polkit(&bus, &error);
5491 private_bus = false;
5492 } else if (arg_transport == TRANSPORT_SSH) {
5493 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5494 private_bus = false;
5496 assert_not_reached("Uh, invalid transport...");
5499 switch (arg_action) {
5501 case ACTION_SYSTEMCTL:
5502 r = systemctl_main(bus, argc, argv, &error);
5506 case ACTION_POWEROFF:
5512 case ACTION_RUNLEVEL2:
5513 case ACTION_RUNLEVEL3:
5514 case ACTION_RUNLEVEL4:
5515 case ACTION_RUNLEVEL5:
5517 case ACTION_EMERGENCY:
5518 case ACTION_DEFAULT:
5519 r = start_with_fallback(bus);
5524 r = reload_with_fallback(bus);
5527 case ACTION_CANCEL_SHUTDOWN: {
5531 m = strv_join(arg_wall, " ");
5533 retval = EXIT_FAILURE;
5537 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
5539 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
5544 case ACTION_INVALID:
5545 case ACTION_RUNLEVEL:
5547 assert_not_reached("Unknown action");
5550 retval = r < 0 ? EXIT_FAILURE : r;
5554 dbus_connection_flush(bus);
5555 dbus_connection_close(bus);
5556 dbus_connection_unref(bus);
5561 strv_free(arg_property);
5564 ask_password_agent_close();
5565 polkit_agent_close();