1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/reboot.h>
29 #include <sys/ioctl.h>
33 #include <sys/socket.h>
36 #include <sys/prctl.h>
37 #include <dbus/dbus.h>
39 #include <systemd/sd-daemon.h>
40 #include <systemd/sd-shutdown.h>
41 #include <systemd/sd-login.h>
47 #include "utmp-wtmp.h"
50 #include "path-util.h"
52 #include "dbus-common.h"
53 #include "cgroup-show.h"
54 #include "cgroup-util.h"
56 #include "path-lookup.h"
57 #include "conf-parser.h"
58 #include "exit-status.h"
59 #include "bus-errors.h"
61 #include "unit-name.h"
63 #include "spawn-ask-password-agent.h"
64 #include "spawn-polkit-agent.h"
66 #include "logs-show.h"
67 #include "path-util.h"
68 #include "socket-util.h"
71 static const char *arg_type = NULL;
72 static const char *arg_load_state = NULL;
73 static char **arg_property = NULL;
74 static bool arg_all = false;
75 static const char *arg_job_mode = "replace";
76 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
77 static bool arg_no_block = false;
78 static bool arg_no_legend = false;
79 static bool arg_no_pager = false;
80 static bool arg_no_wtmp = false;
81 static bool arg_no_wall = false;
82 static bool arg_no_reload = false;
83 static bool arg_ignore_inhibitors = false;
84 static bool arg_dry = false;
85 static bool arg_quiet = false;
86 static bool arg_full = false;
87 static int arg_force = 0;
88 static bool arg_ask_password = true;
89 static bool arg_failed = false;
90 static bool arg_runtime = false;
91 static char **arg_wall = NULL;
92 static const char *arg_kill_who = NULL;
93 static int arg_signal = SIGTERM;
94 static const char *arg_root = NULL;
95 static usec_t arg_when = 0;
117 ACTION_CANCEL_SHUTDOWN,
119 } arg_action = ACTION_SYSTEMCTL;
120 static enum transport {
124 } arg_transport = TRANSPORT_NORMAL;
125 static const char *arg_host = NULL;
126 static unsigned arg_lines = 10;
127 static OutputMode arg_output = OUTPUT_SHORT;
129 static bool private_bus = false;
131 static int daemon_reload(DBusConnection *bus, char **args);
132 static void halt_now(enum action a);
134 static void pager_open_if_enabled(void) {
142 static void ask_password_agent_open_if_enabled(void) {
144 /* Open the password agent as a child process if necessary */
146 if (!arg_ask_password)
149 if (arg_scope != UNIT_FILE_SYSTEM)
152 ask_password_agent_open();
156 static void polkit_agent_open_if_enabled(void) {
158 /* Open the polkit agent as a child process if necessary */
160 if (!arg_ask_password)
163 if (arg_scope != UNIT_FILE_SYSTEM)
170 static const char *ansi_highlight(bool b) {
175 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
178 static const char *ansi_highlight_red(bool b) {
183 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
186 static const char *ansi_highlight_green(bool b) {
191 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
194 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
197 if (!dbus_error_is_set(error))
200 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
201 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
202 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
203 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
204 return EXIT_NOPERMISSION;
206 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
207 return EXIT_NOTINSTALLED;
209 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
210 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
211 return EXIT_NOTIMPLEMENTED;
213 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
214 return EXIT_NOTCONFIGURED;
222 static void warn_wall(enum action a) {
223 static const char *table[_ACTION_MAX] = {
224 [ACTION_HALT] = "The system is going down for system halt NOW!",
225 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
226 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
227 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
228 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
229 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
230 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
237 _cleanup_free_ char *p;
239 p = strv_join(arg_wall, " ");
254 utmp_wall(table[a], NULL);
257 static bool avoid_bus(void) {
259 if (running_in_chroot() > 0)
262 if (sd_booted() <= 0)
265 if (!isempty(arg_root))
268 if (arg_scope == UNIT_FILE_GLOBAL)
274 static int compare_unit_info(const void *a, const void *b) {
276 const struct unit_info *u = a, *v = b;
278 d1 = strrchr(u->id, '.');
279 d2 = strrchr(v->id, '.');
284 r = strcasecmp(d1, d2);
289 return strcasecmp(u->id, v->id);
292 static bool output_show_unit(const struct unit_info *u) {
296 return streq(u->active_state, "failed");
298 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
299 streq(dot+1, arg_type))) &&
300 (!arg_load_state || streq(u->load_state, arg_load_state)) &&
301 (arg_all || !(streq(u->active_state, "inactive")
302 || u->following[0]) || u->job_id > 0);
305 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
306 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
307 const struct unit_info *u;
310 max_id_len = sizeof("UNIT")-1;
311 active_len = sizeof("ACTIVE")-1;
312 sub_len = sizeof("SUB")-1;
313 job_len = sizeof("JOB")-1;
316 for (u = unit_infos; u < unit_infos + c; u++) {
317 if (!output_show_unit(u))
320 max_id_len = MAX(max_id_len, strlen(u->id));
321 active_len = MAX(active_len, strlen(u->active_state));
322 sub_len = MAX(sub_len, strlen(u->sub_state));
323 if (u->job_id != 0) {
324 job_len = MAX(job_len, strlen(u->job_type));
331 id_len = MIN(max_id_len, 25u);
332 basic_len = 5 + id_len + 5 + active_len + sub_len;
334 basic_len += job_len + 1;
335 if (basic_len < (unsigned) columns()) {
336 unsigned extra_len, incr;
337 extra_len = columns() - basic_len;
338 /* Either UNIT already got 25, or is fully satisfied.
339 * Grant up to 25 to DESC now. */
340 incr = MIN(extra_len, 25u);
343 /* split the remaining space between UNIT and DESC,
344 * but do not give UNIT more than it needs. */
346 incr = MIN(extra_len / 2, max_id_len - id_len);
348 desc_len += extra_len - incr;
354 for (u = unit_infos; u < unit_infos + c; u++) {
355 char _cleanup_free_ *e = NULL;
356 const char *on_loaded, *off_loaded;
357 const char *on_active, *off_active;
359 if (!output_show_unit(u))
362 if (!n_shown && !arg_no_legend) {
363 printf("%-*s %-6s %-*s %-*s ", id_len, "UNIT", "LOAD",
364 active_len, "ACTIVE", sub_len, "SUB");
366 printf("%-*s ", job_len, "JOB");
367 if (!arg_full && arg_no_pager)
368 printf("%.*s\n", desc_len, "DESCRIPTION");
370 printf("%s\n", "DESCRIPTION");
375 if (streq(u->load_state, "error")) {
376 on_loaded = ansi_highlight_red(true);
377 off_loaded = ansi_highlight_red(false);
379 on_loaded = off_loaded = "";
381 if (streq(u->active_state, "failed")) {
382 on_active = ansi_highlight_red(true);
383 off_active = ansi_highlight_red(false);
385 on_active = off_active = "";
387 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
389 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s",
390 id_len, e ? e : u->id,
391 on_loaded, u->load_state, off_loaded,
392 on_active, active_len, u->active_state,
393 sub_len, u->sub_state, off_active,
394 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
395 if (!arg_full && arg_no_pager)
396 printf("%.*s\n", desc_len, u->description);
398 printf("%s\n", u->description);
401 if (!arg_no_legend) {
402 const char *on, *off;
405 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
406 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
407 "SUB = The low-level unit activation state, values depend on unit type.\n");
409 printf("JOB = Pending job for the unit.\n");
411 on = ansi_highlight(true);
412 off = ansi_highlight(false);
414 on = ansi_highlight_red(true);
415 off = ansi_highlight_red(false);
419 printf("%s%u loaded units listed.%s\n"
420 "To show all installed unit files use 'systemctl list-unit-files'.\n",
423 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
424 "To show all installed unit files use 'systemctl list-unit-files'.\n",
429 static int get_unit_list(DBusConnection *bus, DBusMessage **reply,
430 struct unit_info **unit_infos, unsigned *c) {
431 DBusMessageIter iter, sub;
432 unsigned n_units = 0;
439 r = bus_method_call_with_reply(
441 "org.freedesktop.systemd1",
442 "/org/freedesktop/systemd1",
443 "org.freedesktop.systemd1.Manager",
451 if (!dbus_message_iter_init(*reply, &iter) ||
452 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
453 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
454 log_error("Failed to parse reply.");
458 dbus_message_iter_recurse(&iter, &sub);
460 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
466 n_units = MAX(2 * *c, 16u);
467 w = realloc(*unit_infos, sizeof(struct unit_info) * n_units);
474 u = *unit_infos + *c;
476 bus_parse_unit_info(&sub, u);
478 dbus_message_iter_next(&sub);
483 qsort(*unit_infos, *c, sizeof(struct unit_info), compare_unit_info);
488 static int list_units(DBusConnection *bus, char **args) {
489 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
490 _cleanup_free_ struct unit_info *unit_infos = NULL;
494 pager_open_if_enabled();
496 r = get_unit_list(bus, &reply, &unit_infos, &c);
501 output_units_list(unit_infos, c);
506 static int compare_unit_file_list(const void *a, const void *b) {
508 const UnitFileList *u = a, *v = b;
510 d1 = strrchr(u->path, '.');
511 d2 = strrchr(v->path, '.');
516 r = strcasecmp(d1, d2);
521 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
524 static bool output_show_unit_file(const UnitFileList *u) {
527 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
530 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
531 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
532 const UnitFileList *u;
534 max_id_len = sizeof("UNIT FILE")-1;
535 state_cols = sizeof("STATE")-1;
536 for (u = units; u < units + c; u++) {
537 if (!output_show_unit_file(u))
540 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
541 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
546 id_cols = MIN(max_id_len, 25u);
547 basic_cols = 1 + id_cols + state_cols;
548 if (basic_cols < (unsigned) columns())
549 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
551 id_cols = max_id_len;
554 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
556 for (u = units; u < units + c; u++) {
557 char _cleanup_free_ *e = NULL;
558 const char *on, *off;
561 if (!output_show_unit_file(u))
566 if (u->state == UNIT_FILE_MASKED ||
567 u->state == UNIT_FILE_MASKED_RUNTIME ||
568 u->state == UNIT_FILE_DISABLED ||
569 u->state == UNIT_FILE_INVALID) {
570 on = ansi_highlight_red(true);
571 off = ansi_highlight_red(false);
572 } else if (u->state == UNIT_FILE_ENABLED) {
573 on = ansi_highlight_green(true);
574 off = ansi_highlight_green(false);
578 id = path_get_file_name(u->path);
580 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
582 printf("%-*s %s%-*s%s\n",
584 on, state_cols, unit_file_state_to_string(u->state), off);
588 printf("\n%u unit files listed.\n", n_shown);
591 static int list_unit_files(DBusConnection *bus, char **args) {
592 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
593 _cleanup_free_ UnitFileList *units = NULL;
594 DBusMessageIter iter, sub, sub2;
595 unsigned c = 0, n_units = 0;
598 pager_open_if_enabled();
605 h = hashmap_new(string_hash_func, string_compare_func);
609 r = unit_file_get_list(arg_scope, arg_root, h);
611 unit_file_list_free(h);
612 log_error("Failed to get unit file list: %s", strerror(-r));
616 n_units = hashmap_size(h);
617 units = new(UnitFileList, n_units);
619 unit_file_list_free(h);
623 HASHMAP_FOREACH(u, h, i) {
624 memcpy(units + c++, u, sizeof(UnitFileList));
630 r = bus_method_call_with_reply(
632 "org.freedesktop.systemd1",
633 "/org/freedesktop/systemd1",
634 "org.freedesktop.systemd1.Manager",
642 if (!dbus_message_iter_init(reply, &iter) ||
643 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
644 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
645 log_error("Failed to parse reply.");
649 dbus_message_iter_recurse(&iter, &sub);
651 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
655 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT);
660 n_units = MAX(2*c, 16u);
661 w = realloc(units, sizeof(struct UnitFileList) * n_units);
670 dbus_message_iter_recurse(&sub, &sub2);
672 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
673 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
674 log_error("Failed to parse reply.");
678 u->state = unit_file_state_from_string(state);
680 dbus_message_iter_next(&sub);
686 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
687 output_unit_file_list(units, c);
693 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
695 _cleanup_free_ char *n = NULL;
697 size_t max_len = MAX(columns(),20u);
699 for (i = level - 1; i >= 0; i--) {
701 if(len > max_len - 3 && !arg_full) {
702 printf("%s...\n",max_len % 2 ? "" : " ");
705 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
708 if(len > max_len - 3 && !arg_full) {
709 printf("%s...\n",max_len % 2 ? "" : " ");
712 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
715 printf("%s\n", name);
719 n = ellipsize(name, max_len-len, 100);
727 static int list_dependencies_get_dependencies(DBusConnection *bus, const char *name, char ***deps) {
728 static const char dependencies[] =
730 "RequiresOverridable\0"
732 "RequisiteOverridable\0"
735 _cleanup_free_ char *path;
736 const char *interface = "org.freedesktop.systemd1.Unit";
738 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
739 DBusMessageIter iter, sub, sub2, sub3;
748 path = unit_dbus_path_from_name(name);
754 r = bus_method_call_with_reply(
756 "org.freedesktop.systemd1",
758 "org.freedesktop.DBus.Properties",
762 DBUS_TYPE_STRING, &interface,
767 if (!dbus_message_iter_init(reply, &iter) ||
768 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
769 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
770 log_error("Failed to parse reply.");
775 dbus_message_iter_recurse(&iter, &sub);
777 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
780 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
781 dbus_message_iter_recurse(&sub, &sub2);
783 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
784 log_error("Failed to parse reply.");
789 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
790 log_error("Failed to parse reply.");
795 dbus_message_iter_recurse(&sub2, &sub3);
796 dbus_message_iter_next(&sub);
798 if (!nulstr_contains(dependencies, prop))
801 if (dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_ARRAY) {
802 if (dbus_message_iter_get_element_type(&sub3) == DBUS_TYPE_STRING) {
803 DBusMessageIter sub4;
804 dbus_message_iter_recurse(&sub3, &sub4);
806 while (dbus_message_iter_get_arg_type(&sub4) != DBUS_TYPE_INVALID) {
809 assert(dbus_message_iter_get_arg_type(&sub4) == DBUS_TYPE_STRING);
810 dbus_message_iter_get_basic(&sub4, &s);
812 r = strv_extend(&ret, s);
818 dbus_message_iter_next(&sub4);
831 static int list_dependencies_compare(const void *_a, const void *_b) {
832 const char **a = (const char**) _a, **b = (const char**) _b;
833 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
835 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
837 return strcasecmp(*a, *b);
840 static int list_dependencies_one(DBusConnection *bus, const char *name, int level, char **units, unsigned int branches) {
841 char _cleanup_strv_free_ **deps = NULL, **u;
845 u = strv_append(units, name);
849 r = list_dependencies_get_dependencies(bus, name, &deps);
853 qsort(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
855 STRV_FOREACH(c, deps) {
856 if (strv_contains(u, *c)) {
857 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
863 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
867 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
868 r = list_dependencies_one(bus, *c, level + 1, u, (branches << 1) | (c[1] == NULL ? 0 : 1));
877 static int list_dependencies(DBusConnection *bus, char **args) {
878 _cleanup_free_ char *unit = NULL;
884 unit = unit_name_mangle(args[1]);
889 u = SPECIAL_DEFAULT_TARGET;
891 pager_open_if_enabled();
895 return list_dependencies_one(bus, u, 0, NULL, 0);
898 static int list_jobs(DBusConnection *bus, char **args) {
899 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
900 DBusMessageIter iter, sub, sub2;
904 pager_open_if_enabled();
906 r = bus_method_call_with_reply(
908 "org.freedesktop.systemd1",
909 "/org/freedesktop/systemd1",
910 "org.freedesktop.systemd1.Manager",
918 if (!dbus_message_iter_init(reply, &iter) ||
919 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
920 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
921 log_error("Failed to parse reply.");
925 dbus_message_iter_recurse(&iter, &sub);
928 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
930 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
931 const char *name, *type, *state, *job_path, *unit_path;
933 char _cleanup_free_ *e = NULL;
935 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
936 log_error("Failed to parse reply.");
940 dbus_message_iter_recurse(&sub, &sub2);
942 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
943 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
944 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
945 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
946 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
947 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
948 log_error("Failed to parse reply.");
952 e = arg_full ? NULL : ellipsize(name, 25, 33);
953 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
957 dbus_message_iter_next(&sub);
961 printf("\n%u jobs listed.\n", k);
966 static int load_unit(DBusConnection *bus, char **args) {
971 STRV_FOREACH(name, args+1) {
972 _cleanup_free_ char *n = NULL;
975 n = unit_name_mangle(*name);
979 r = bus_method_call_with_reply(
981 "org.freedesktop.systemd1",
982 "/org/freedesktop/systemd1",
983 "org.freedesktop.systemd1.Manager",
987 DBUS_TYPE_STRING, &n,
996 static int cancel_job(DBusConnection *bus, char **args) {
1001 if (strv_length(args) <= 1)
1002 return daemon_reload(bus, args);
1004 STRV_FOREACH(name, args+1) {
1008 r = safe_atou32(*name, &id);
1010 log_error("Failed to parse job id: %s", strerror(-r));
1014 r = bus_method_call_with_reply(
1016 "org.freedesktop.systemd1",
1017 "/org/freedesktop/systemd1",
1018 "org.freedesktop.systemd1.Manager",
1022 DBUS_TYPE_UINT32, &id,
1031 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1032 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1033 dbus_bool_t b = FALSE;
1034 DBusMessageIter iter, sub;
1036 *interface = "org.freedesktop.systemd1.Unit",
1037 *property = "NeedDaemonReload",
1039 _cleanup_free_ char *n = NULL;
1042 /* We ignore all errors here, since this is used to show a warning only */
1044 n = unit_name_mangle(unit);
1048 r = bus_method_call_with_reply(
1050 "org.freedesktop.systemd1",
1051 "/org/freedesktop/systemd1",
1052 "org.freedesktop.systemd1.Manager",
1056 DBUS_TYPE_STRING, &n,
1061 if (!dbus_message_get_args(reply, NULL,
1062 DBUS_TYPE_OBJECT_PATH, &path,
1066 dbus_message_unref(reply);
1069 r = bus_method_call_with_reply(
1071 "org.freedesktop.systemd1",
1073 "org.freedesktop.DBus.Properties",
1077 DBUS_TYPE_STRING, &interface,
1078 DBUS_TYPE_STRING, &property,
1083 if (!dbus_message_iter_init(reply, &iter) ||
1084 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1087 dbus_message_iter_recurse(&iter, &sub);
1088 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1091 dbus_message_iter_get_basic(&sub, &b);
1095 typedef struct WaitData {
1102 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1103 DBusError _cleanup_dbus_error_free_ error;
1106 dbus_error_init(&error);
1112 log_debug("Got D-Bus request: %s.%s() on %s",
1113 dbus_message_get_interface(message),
1114 dbus_message_get_member(message),
1115 dbus_message_get_path(message));
1117 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1118 log_error("Warning! D-Bus connection terminated.");
1119 dbus_connection_close(connection);
1121 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1123 const char *path, *result, *unit;
1125 if (dbus_message_get_args(message, &error,
1126 DBUS_TYPE_UINT32, &id,
1127 DBUS_TYPE_OBJECT_PATH, &path,
1128 DBUS_TYPE_STRING, &unit,
1129 DBUS_TYPE_STRING, &result,
1130 DBUS_TYPE_INVALID)) {
1132 free(set_remove(d->set, (char*) path));
1134 if (!isempty(result))
1135 d->result = strdup(result);
1138 d->name = strdup(unit);
1140 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1143 dbus_error_free(&error);
1144 if (dbus_message_get_args(message, &error,
1145 DBUS_TYPE_UINT32, &id,
1146 DBUS_TYPE_OBJECT_PATH, &path,
1147 DBUS_TYPE_STRING, &result,
1148 DBUS_TYPE_INVALID)) {
1149 /* Compatibility with older systemd versions <
1150 * 183 during upgrades. This should be dropped
1152 free(set_remove(d->set, (char*) path));
1155 d->result = strdup(result);
1157 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1161 log_error("Failed to parse message: %s", bus_error_message(&error));
1164 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1167 static int enable_wait_for_jobs(DBusConnection *bus) {
1175 dbus_error_init(&error);
1176 dbus_bus_add_match(bus,
1178 "sender='org.freedesktop.systemd1',"
1179 "interface='org.freedesktop.systemd1.Manager',"
1180 "member='JobRemoved',"
1181 "path='/org/freedesktop/systemd1'",
1184 if (dbus_error_is_set(&error)) {
1185 log_error("Failed to add match: %s", bus_error_message(&error));
1186 dbus_error_free(&error);
1190 /* This is slightly dirty, since we don't undo the match registrations. */
1194 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1204 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL))
1207 while (!set_isempty(s)) {
1209 if (!dbus_connection_read_write_dispatch(bus, -1)) {
1210 log_error("Disconnected from bus.");
1211 return -ECONNREFUSED;
1218 if (streq(d.result, "timeout"))
1219 log_error("Job for %s timed out.", strna(d.name));
1220 else if (streq(d.result, "canceled"))
1221 log_error("Job for %s canceled.", strna(d.name));
1222 else if (streq(d.result, "dependency"))
1223 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d.name));
1224 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1225 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d.name), strna(d.name));
1228 if (streq_ptr(d.result, "timeout"))
1230 else if (streq_ptr(d.result, "canceled"))
1232 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1243 dbus_connection_remove_filter(bus, wait_filter, &d);
1247 static int check_one_unit(DBusConnection *bus, const char *name, char **check_states, bool quiet) {
1248 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1249 _cleanup_free_ char *n = NULL;
1250 DBusMessageIter iter, sub;
1252 *interface = "org.freedesktop.systemd1.Unit",
1253 *property = "ActiveState";
1254 const char *state, *path;
1260 dbus_error_init(&error);
1262 n = unit_name_mangle(name);
1266 r = bus_method_call_with_reply (
1268 "org.freedesktop.systemd1",
1269 "/org/freedesktop/systemd1",
1270 "org.freedesktop.systemd1.Manager",
1274 DBUS_TYPE_STRING, &n,
1277 dbus_error_free(&error);
1284 if (!dbus_message_get_args(reply, NULL,
1285 DBUS_TYPE_OBJECT_PATH, &path,
1286 DBUS_TYPE_INVALID)) {
1287 log_error("Failed to parse reply.");
1291 dbus_message_unref(reply);
1294 r = bus_method_call_with_reply(
1296 "org.freedesktop.systemd1",
1298 "org.freedesktop.DBus.Properties",
1302 DBUS_TYPE_STRING, &interface,
1303 DBUS_TYPE_STRING, &property,
1311 if (!dbus_message_iter_init(reply, &iter) ||
1312 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1313 log_error("Failed to parse reply.");
1317 dbus_message_iter_recurse(&iter, &sub);
1319 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1320 log_error("Failed to parse reply.");
1324 dbus_message_iter_get_basic(&sub, &state);
1329 return strv_find(check_states, state) ? 1 : 0;
1332 static void check_triggering_units(
1333 DBusConnection *bus,
1334 const char *unit_name) {
1336 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1337 DBusMessageIter iter, sub;
1338 const char *interface = "org.freedesktop.systemd1.Unit",
1339 *load_state_property = "LoadState",
1340 *triggered_by_property = "TriggeredBy",
1342 char _cleanup_free_ *unit_path = NULL, *n = NULL;
1343 bool print_warning_label = true;
1346 n = unit_name_mangle(unit_name);
1352 unit_path = unit_dbus_path_from_name(n);
1358 r = bus_method_call_with_reply(
1360 "org.freedesktop.systemd1",
1362 "org.freedesktop.DBus.Properties",
1366 DBUS_TYPE_STRING, &interface,
1367 DBUS_TYPE_STRING, &load_state_property,
1372 if (!dbus_message_iter_init(reply, &iter) ||
1373 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1374 log_error("Failed to parse reply.");
1378 dbus_message_iter_recurse(&iter, &sub);
1380 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1381 log_error("Failed to parse reply.");
1385 dbus_message_iter_get_basic(&sub, &state);
1387 if (streq(state, "masked"))
1390 dbus_message_unref(reply);
1393 r = bus_method_call_with_reply(
1395 "org.freedesktop.systemd1",
1397 "org.freedesktop.DBus.Properties",
1401 DBUS_TYPE_STRING, &interface,
1402 DBUS_TYPE_STRING, &triggered_by_property,
1407 if (!dbus_message_iter_init(reply, &iter) ||
1408 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1409 log_error("Failed to parse reply.");
1413 dbus_message_iter_recurse(&iter, &sub);
1414 dbus_message_iter_recurse(&sub, &iter);
1417 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1418 const char * const check_states[] = {
1423 const char *service_trigger;
1425 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1426 log_error("Failed to parse reply.");
1430 dbus_message_iter_get_basic(&sub, &service_trigger);
1432 r = check_one_unit(bus, service_trigger, (char**) check_states, true);
1436 if (print_warning_label) {
1437 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1438 print_warning_label = false;
1441 log_warning(" %s", service_trigger);
1444 dbus_message_iter_next(&sub);
1448 static int start_unit_one(
1449 DBusConnection *bus,
1456 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1457 _cleanup_free_ char *n;
1466 n = unit_name_mangle(name);
1470 r = bus_method_call_with_reply(
1472 "org.freedesktop.systemd1",
1473 "/org/freedesktop/systemd1",
1474 "org.freedesktop.systemd1.Manager",
1478 DBUS_TYPE_STRING, &n,
1479 DBUS_TYPE_STRING, &mode,
1482 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
1483 /* There's always a fallback possible for
1484 * legacy actions. */
1487 log_error("Failed to issue method call: %s", bus_error_message(error));
1492 if (!dbus_message_get_args(reply, error,
1493 DBUS_TYPE_OBJECT_PATH, &path,
1494 DBUS_TYPE_INVALID)) {
1495 log_error("Failed to parse reply: %s", bus_error_message(error));
1499 if (need_daemon_reload(bus, n))
1500 log_warning("Warning: Unit file of %s changed on disk, 'systemctl %s daemon-reload' recommended.",
1501 n, arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1513 log_error("Failed to add path to set.");
1521 static const struct {
1525 } action_table[_ACTION_MAX] = {
1526 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
1527 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
1528 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
1529 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
1530 [ACTION_RUNLEVEL2] = { SPECIAL_RUNLEVEL2_TARGET, NULL, "isolate" },
1531 [ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
1532 [ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
1533 [ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_TARGET, NULL, "isolate" },
1534 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
1535 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
1536 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
1537 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
1538 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
1539 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
1540 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
1543 static enum action verb_to_action(const char *verb) {
1546 for (i = ACTION_INVALID; i < _ACTION_MAX; i++)
1547 if (action_table[i].verb && streq(verb, action_table[i].verb))
1549 return ACTION_INVALID;
1552 static int start_unit(DBusConnection *bus, char **args) {
1555 const char *method, *mode, *one_name;
1556 Set _cleanup_set_free_free_ *s = NULL;
1557 DBusError _cleanup_dbus_error_free_ error;
1560 dbus_error_init(&error);
1564 ask_password_agent_open_if_enabled();
1566 if (arg_action == ACTION_SYSTEMCTL) {
1569 streq(args[0], "stop") ||
1570 streq(args[0], "condstop") ? "StopUnit" :
1571 streq(args[0], "reload") ? "ReloadUnit" :
1572 streq(args[0], "restart") ? "RestartUnit" :
1574 streq(args[0], "try-restart") ||
1575 streq(args[0], "condrestart") ? "TryRestartUnit" :
1577 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1579 streq(args[0], "reload-or-try-restart") ||
1580 streq(args[0], "condreload") ||
1582 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1584 action = verb_to_action(args[0]);
1586 mode = streq(args[0], "isolate") ? "isolate" :
1587 action_table[action].mode ?: arg_job_mode;
1589 one_name = action_table[action].target;
1592 assert(arg_action < ELEMENTSOF(action_table));
1593 assert(action_table[arg_action].target);
1595 method = "StartUnit";
1597 mode = action_table[arg_action].mode;
1598 one_name = action_table[arg_action].target;
1601 if (!arg_no_block) {
1602 ret = enable_wait_for_jobs(bus);
1604 log_error("Could not watch jobs: %s", strerror(-ret));
1608 s = set_new(string_hash_func, string_compare_func);
1614 ret = start_unit_one(bus, method, one_name, mode, &error, s);
1616 ret = translate_bus_error_to_exit_status(ret, &error);
1618 STRV_FOREACH(name, args+1) {
1619 r = start_unit_one(bus, method, *name, mode, &error, s);
1621 ret = translate_bus_error_to_exit_status(r, &error);
1622 dbus_error_free(&error);
1627 if (!arg_no_block) {
1628 r = wait_for_jobs(bus, s);
1632 /* When stopping units, warn if they can still be triggered by
1633 * another active unit (socket, path, timer) */
1634 if (!arg_quiet && streq(method, "StopUnit")) {
1636 check_triggering_units(bus, one_name);
1638 STRV_FOREACH(name, args+1)
1639 check_triggering_units(bus, *name);
1646 /* Ask systemd-logind, which might grant access to unprivileged users
1647 * through PolicyKit */
1648 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1651 dbus_bool_t interactive = true;
1656 polkit_agent_open_if_enabled();
1664 case ACTION_POWEROFF:
1665 method = "PowerOff";
1668 case ACTION_SUSPEND:
1672 case ACTION_HIBERNATE:
1673 method = "Hibernate";
1676 case ACTION_HYBRID_SLEEP:
1677 method = "HybridSleep";
1684 return bus_method_call_with_reply(
1686 "org.freedesktop.login1",
1687 "/org/freedesktop/login1",
1688 "org.freedesktop.login1.Manager",
1692 DBUS_TYPE_BOOLEAN, &interactive,
1699 static int check_inhibitors(DBusConnection *bus, enum action a) {
1701 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1702 DBusMessageIter iter, sub, sub2;
1705 _cleanup_strv_free_ char **sessions = NULL;
1711 if (arg_ignore_inhibitors || arg_force > 0)
1723 r = bus_method_call_with_reply(
1725 "org.freedesktop.login1",
1726 "/org/freedesktop/login1",
1727 "org.freedesktop.login1.Manager",
1733 /* If logind is not around, then there are no inhibitors... */
1736 if (!dbus_message_iter_init(reply, &iter) ||
1737 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1738 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1739 log_error("Failed to parse reply.");
1743 dbus_message_iter_recurse(&iter, &sub);
1744 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1745 const char *what, *who, *why, *mode;
1747 _cleanup_strv_free_ char **sv = NULL;
1748 _cleanup_free_ char *comm = NULL, *user = NULL;
1750 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1751 log_error("Failed to parse reply.");
1755 dbus_message_iter_recurse(&sub, &sub2);
1757 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &what, true) < 0 ||
1758 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &who, true) < 0 ||
1759 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &why, true) < 0 ||
1760 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &mode, true) < 0 ||
1761 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &uid, true) < 0 ||
1762 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, false) < 0) {
1763 log_error("Failed to parse reply.");
1767 if (!streq(mode, "block"))
1770 sv = strv_split(what, ":");
1774 if (!strv_contains(sv,
1776 a == ACTION_POWEROFF ||
1777 a == ACTION_REBOOT ||
1778 a == ACTION_KEXEC ? "shutdown" : "sleep"))
1781 get_process_comm(pid, &comm);
1782 user = uid_to_name(uid);
1783 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
1784 who, (unsigned long) pid, strna(comm), strna(user), why);
1788 dbus_message_iter_next(&sub);
1791 dbus_message_iter_recurse(&iter, &sub);
1793 /* Check for current sessions */
1794 sd_get_sessions(&sessions);
1795 STRV_FOREACH(s, sessions) {
1797 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
1799 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
1802 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
1805 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
1808 sd_session_get_tty(*s, &tty);
1809 sd_session_get_seat(*s, &seat);
1810 sd_session_get_service(*s, &service);
1811 user = uid_to_name(uid);
1813 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
1820 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
1821 action_table[a].verb);
1829 static int start_special(DBusConnection *bus, char **args) {
1835 a = verb_to_action(args[0]);
1837 r = check_inhibitors(bus, a);
1841 if (arg_force >= 2 && geteuid() != 0) {
1842 log_error("Must be root.");
1846 if (arg_force >= 2 &&
1847 (a == ACTION_HALT ||
1848 a == ACTION_POWEROFF ||
1849 a == ACTION_REBOOT))
1852 if (arg_force >= 1 &&
1853 (a == ACTION_HALT ||
1854 a == ACTION_POWEROFF ||
1855 a == ACTION_REBOOT ||
1856 a == ACTION_KEXEC ||
1858 return daemon_reload(bus, args);
1860 /* first try logind, to allow authentication with polkit */
1861 if (geteuid() != 0 &&
1862 (a == ACTION_POWEROFF ||
1863 a == ACTION_REBOOT ||
1864 a == ACTION_SUSPEND ||
1865 a == ACTION_HIBERNATE ||
1866 a == ACTION_HYBRID_SLEEP)) {
1867 r = reboot_with_logind(bus, a);
1872 r = start_unit(bus, args);
1873 if (r == EXIT_SUCCESS)
1879 static int check_unit_active(DBusConnection *bus, char **args) {
1880 const char * const check_states[] = {
1887 int r = 3; /* According to LSB: "program is not running" */
1892 STRV_FOREACH(name, args+1) {
1895 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
1905 static int check_unit_failed(DBusConnection *bus, char **args) {
1906 const char * const check_states[] = {
1917 STRV_FOREACH(name, args+1) {
1920 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
1930 static int kill_unit(DBusConnection *bus, char **args) {
1938 arg_kill_who = "all";
1940 STRV_FOREACH(name, args+1) {
1941 _cleanup_free_ char *n = NULL;
1943 n = unit_name_mangle(*name);
1947 r = bus_method_call_with_reply(
1949 "org.freedesktop.systemd1",
1950 "/org/freedesktop/systemd1",
1951 "org.freedesktop.systemd1.Manager",
1955 DBUS_TYPE_STRING, &n,
1956 DBUS_TYPE_STRING, &arg_kill_who,
1957 DBUS_TYPE_INT32, &arg_signal,
1965 static int set_cgroup(DBusConnection *bus, char **args) {
1966 _cleanup_free_ char *n = NULL;
1967 const char *method, *runtime;
1975 streq(args[0], "set-cgroup") ? "SetUnitControlGroup" :
1976 streq(args[0], "unset-cgroup") ? "UnsetUnitControlGroup"
1977 : "UnsetUnitControlGroupAttribute";
1979 runtime = arg_runtime ? "runtime" : "persistent";
1981 n = unit_name_mangle(args[1]);
1985 STRV_FOREACH(argument, args + 2) {
1987 r = bus_method_call_with_reply(
1989 "org.freedesktop.systemd1",
1990 "/org/freedesktop/systemd1",
1991 "org.freedesktop.systemd1.Manager",
1995 DBUS_TYPE_STRING, &n,
1996 DBUS_TYPE_STRING, argument,
1997 DBUS_TYPE_STRING, &runtime,
2006 static int set_cgroup_attr(DBusConnection *bus, char **args) {
2007 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
2009 DBusMessageIter iter;
2010 _cleanup_free_ char *n = NULL;
2011 const char *runtime;
2017 dbus_error_init(&error);
2019 runtime = arg_runtime ? "runtime" : "persistent";
2021 n = unit_name_mangle(args[1]);
2025 m = dbus_message_new_method_call(
2026 "org.freedesktop.systemd1",
2027 "/org/freedesktop/systemd1",
2028 "org.freedesktop.systemd1.Manager",
2029 "SetUnitControlGroupAttribute");
2033 dbus_message_iter_init_append(m, &iter);
2034 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n) ||
2035 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &args[2]))
2038 r = bus_append_strv_iter(&iter, args + 3);
2042 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &runtime))
2045 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2047 log_error("Failed to issue method call: %s", bus_error_message(&error));
2048 dbus_error_free(&error);
2055 static int get_cgroup_attr(DBusConnection *bus, char **args) {
2056 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
2057 _cleanup_free_ char *n = NULL;
2064 n = unit_name_mangle(args[1]);
2068 STRV_FOREACH(argument, args + 2) {
2069 _cleanup_strv_free_ char **list = NULL;
2070 DBusMessageIter iter;
2073 r = bus_method_call_with_reply(
2075 "org.freedesktop.systemd1",
2076 "/org/freedesktop/systemd1",
2077 "org.freedesktop.systemd1.Manager",
2078 "GetUnitControlGroupAttribute",
2081 DBUS_TYPE_STRING, &n,
2082 DBUS_TYPE_STRING, argument,
2087 if (!dbus_message_iter_init(reply, &iter)) {
2088 log_error("Failed to initialize iterator.");
2092 r = bus_parse_strv_iter(&iter, &list);
2094 log_error("Failed to parse value list.");
2098 STRV_FOREACH(a, list) {
2099 if (endswith(*a, "\n"))
2109 typedef struct ExecStatusInfo {
2117 usec_t start_timestamp;
2118 usec_t exit_timestamp;
2123 LIST_FIELDS(struct ExecStatusInfo, exec);
2126 static void exec_status_info_free(ExecStatusInfo *i) {
2135 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2136 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2137 DBusMessageIter sub2, sub3;
2141 int32_t code, status;
2147 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2150 dbus_message_iter_recurse(sub, &sub2);
2152 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2155 i->path = strdup(path);
2159 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2160 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2164 dbus_message_iter_recurse(&sub2, &sub3);
2165 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2166 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2167 dbus_message_iter_next(&sub3);
2171 i->argv = new0(char*, n+1);
2176 dbus_message_iter_recurse(&sub2, &sub3);
2177 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2180 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2181 dbus_message_iter_get_basic(&sub3, &s);
2182 dbus_message_iter_next(&sub3);
2184 i->argv[n] = strdup(s);
2191 if (!dbus_message_iter_next(&sub2) ||
2192 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2193 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2194 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2195 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2196 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2197 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2198 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2199 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2203 i->start_timestamp = (usec_t) start_timestamp;
2204 i->exit_timestamp = (usec_t) exit_timestamp;
2205 i->pid = (pid_t) pid;
2212 typedef struct UnitStatusInfo {
2214 const char *load_state;
2215 const char *active_state;
2216 const char *sub_state;
2217 const char *unit_file_state;
2219 const char *description;
2220 const char *following;
2222 char **documentation;
2224 const char *fragment_path;
2225 const char *source_path;
2226 const char *default_control_group;
2228 const char *load_error;
2231 usec_t inactive_exit_timestamp;
2232 usec_t inactive_exit_timestamp_monotonic;
2233 usec_t active_enter_timestamp;
2234 usec_t active_exit_timestamp;
2235 usec_t inactive_enter_timestamp;
2237 bool need_daemon_reload;
2242 const char *status_text;
2245 usec_t start_timestamp;
2246 usec_t exit_timestamp;
2248 int exit_code, exit_status;
2250 usec_t condition_timestamp;
2251 bool condition_result;
2254 unsigned n_accepted;
2255 unsigned n_connections;
2258 /* Pairs of type, path */
2262 const char *sysfs_path;
2264 /* Mount, Automount */
2270 LIST_HEAD(ExecStatusInfo, exec);
2273 static void print_status_info(UnitStatusInfo *i) {
2275 const char *on, *off, *ss;
2277 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2278 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2281 arg_all * OUTPUT_SHOW_ALL |
2282 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2283 on_tty() * OUTPUT_COLOR |
2284 !arg_quiet * OUTPUT_WARN_CUTOFF |
2285 arg_full * OUTPUT_FULL_WIDTH;
2286 int maxlen = 8; /* a value that'll suffice most of the time */
2291 STRV_FOREACH_PAIR(t, t2, i->listen)
2292 maxlen = MAX(maxlen, (int)(sizeof("Listen") - 1 + strlen(*t)));
2294 maxlen = MAX(maxlen, (int)sizeof("Accept") - 1);
2295 if (i->main_pid > 0)
2296 maxlen = MAX(maxlen, (int)sizeof("Main PID") - 1);
2297 else if (i->control_pid > 0)
2298 maxlen = MAX(maxlen, (int)sizeof("Control") - 1);
2300 /* This shows pretty information about a unit. See
2301 * print_property() for a low-level property printer */
2303 printf("%s", strna(i->id));
2305 if (i->description && !streq_ptr(i->id, i->description))
2306 printf(" - %s", i->description);
2311 printf(" %*s: unit currently follows state of %s\n", maxlen, "Follow", i->following);
2313 if (streq_ptr(i->load_state, "error")) {
2314 on = ansi_highlight_red(true);
2315 off = ansi_highlight_red(false);
2319 path = i->source_path ? i->source_path : i->fragment_path;
2322 printf(" %*s: %s%s%s (Reason: %s)\n",
2323 maxlen, "Loaded", on, strna(i->load_state), off, i->load_error);
2324 else if (path && i->unit_file_state)
2325 printf(" %*s: %s%s%s (%s; %s)\n",
2326 maxlen, "Loaded", on, strna(i->load_state), off, path, i->unit_file_state);
2328 printf(" %*s: %s%s%s (%s)\n",
2329 maxlen, "Loaded", on, strna(i->load_state), off, path);
2331 printf(" %*s: %s%s%s\n",
2332 maxlen, "Loaded", on, strna(i->load_state), off);
2334 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2336 if (streq_ptr(i->active_state, "failed")) {
2337 on = ansi_highlight_red(true);
2338 off = ansi_highlight_red(false);
2339 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2340 on = ansi_highlight_green(true);
2341 off = ansi_highlight_green(false);
2346 printf(" %*s: %s%s (%s)%s",
2347 maxlen, "Active", on, strna(i->active_state), ss, off);
2349 printf(" %*s: %s%s%s",
2350 maxlen, "Active", on, strna(i->active_state), off);
2352 if (!isempty(i->result) && !streq(i->result, "success"))
2353 printf(" (Result: %s)", i->result);
2355 timestamp = (streq_ptr(i->active_state, "active") ||
2356 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2357 (streq_ptr(i->active_state, "inactive") ||
2358 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2359 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2360 i->active_exit_timestamp;
2362 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2363 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2366 printf(" since %s; %s\n", s2, s1);
2368 printf(" since %s\n", s2);
2372 if (!i->condition_result && i->condition_timestamp > 0) {
2373 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2374 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2377 printf(" %*s start condition failed at %s; %s\n", maxlen, "", s2, s1);
2379 printf(" %*s start condition failed at %s\n", maxlen, "", s2);
2383 printf(" %*s: %s\n", maxlen, "Device", i->sysfs_path);
2385 printf(" %*s: %s\n", maxlen, "Where", i->where);
2387 printf(" %*s: %s\n", maxlen, "What", i->what);
2389 STRV_FOREACH(t, i->documentation)
2390 printf(" %*s: %s\n", maxlen, t == i->documentation ? "Docs" : "", *t);
2392 STRV_FOREACH_PAIR(t, t2, i->listen)
2393 printf(" %*s%s: %s\n", maxlen - (int)strlen(*t), "Listen", *t, *t2);
2396 printf(" %*s: %u; Connected: %u\n", maxlen, "Accepted", i->n_accepted, i->n_connections);
2398 LIST_FOREACH(exec, p, i->exec) {
2399 _cleanup_free_ char *argv = NULL;
2402 /* Only show exited processes here */
2406 argv = strv_join(p->argv, " ");
2407 printf(" %*s: %u %s=%s ", maxlen, "Process", p->pid, p->name, strna(argv));
2409 good = is_clean_exit_lsb(p->code, p->status, NULL);
2411 on = ansi_highlight_red(true);
2412 off = ansi_highlight_red(false);
2416 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2418 if (p->code == CLD_EXITED) {
2421 printf("status=%i", p->status);
2423 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2428 printf("signal=%s", signal_to_string(p->status));
2430 printf(")%s\n", off);
2432 if (i->main_pid == p->pid &&
2433 i->start_timestamp == p->start_timestamp &&
2434 i->exit_timestamp == p->start_timestamp)
2435 /* Let's not show this twice */
2438 if (p->pid == i->control_pid)
2442 if (i->main_pid > 0 || i->control_pid > 0) {
2443 if (i->main_pid > 0) {
2444 printf(" %*s: %u", maxlen, "Main PID", (unsigned) i->main_pid);
2447 _cleanup_free_ char *comm = NULL;
2448 get_process_comm(i->main_pid, &comm);
2450 printf(" (%s)", comm);
2451 } else if (i->exit_code > 0) {
2452 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2454 if (i->exit_code == CLD_EXITED) {
2457 printf("status=%i", i->exit_status);
2459 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2464 printf("signal=%s", signal_to_string(i->exit_status));
2468 if (i->control_pid > 0)
2472 if (i->control_pid > 0) {
2473 _cleanup_free_ char *c = NULL;
2475 printf(" %*s: %u", i->main_pid ? 0 : maxlen, "Control", (unsigned) i->control_pid);
2477 get_process_comm(i->control_pid, &c);
2486 printf(" %*s: \"%s\"\n", maxlen, "Status", i->status_text);
2488 if (i->default_control_group &&
2489 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_by_spec(i->default_control_group, false) == 0)) {
2492 printf(" %*s: %s\n", maxlen, "CGroup", i->default_control_group);
2494 if (arg_transport != TRANSPORT_SSH) {
2504 if (i->main_pid > 0)
2505 extra[k++] = i->main_pid;
2507 if (i->control_pid > 0)
2508 extra[k++] = i->control_pid;
2510 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, extra, k, flags);
2514 if (i->id && arg_transport != TRANSPORT_SSH) {
2516 show_journal_by_unit(stdout,
2520 i->inactive_exit_timestamp_monotonic,
2524 arg_scope == UNIT_FILE_SYSTEM);
2527 if (i->need_daemon_reload)
2528 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2529 ansi_highlight_red(true),
2530 ansi_highlight_red(false),
2531 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2534 static void show_unit_help(UnitStatusInfo *i) {
2539 if (!i->documentation) {
2540 log_info("Documentation for %s not known.", i->id);
2544 STRV_FOREACH(p, i->documentation) {
2546 if (startswith(*p, "man:")) {
2549 char _cleanup_free_ *page = NULL, *section = NULL;
2550 const char *args[4] = { "man", NULL, NULL, NULL };
2555 if ((*p)[k-1] == ')')
2556 e = strrchr(*p, '(');
2559 page = strndup((*p) + 4, e - *p - 4);
2560 section = strndup(e + 1, *p + k - e - 2);
2561 if (!page || !section) {
2573 log_error("Failed to fork: %m");
2579 execvp(args[0], (char**) args);
2580 log_error("Failed to execute man: %m");
2581 _exit(EXIT_FAILURE);
2584 wait_for_terminate(pid, NULL);
2586 log_info("Can't show: %s", *p);
2590 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2596 switch (dbus_message_iter_get_arg_type(iter)) {
2598 case DBUS_TYPE_STRING: {
2601 dbus_message_iter_get_basic(iter, &s);
2604 if (streq(name, "Id"))
2606 else if (streq(name, "LoadState"))
2608 else if (streq(name, "ActiveState"))
2609 i->active_state = s;
2610 else if (streq(name, "SubState"))
2612 else if (streq(name, "Description"))
2614 else if (streq(name, "FragmentPath"))
2615 i->fragment_path = s;
2616 else if (streq(name, "SourcePath"))
2618 else if (streq(name, "DefaultControlGroup"))
2619 i->default_control_group = s;
2620 else if (streq(name, "StatusText"))
2622 else if (streq(name, "SysFSPath"))
2624 else if (streq(name, "Where"))
2626 else if (streq(name, "What"))
2628 else if (streq(name, "Following"))
2630 else if (streq(name, "UnitFileState"))
2631 i->unit_file_state = s;
2632 else if (streq(name, "Result"))
2639 case DBUS_TYPE_BOOLEAN: {
2642 dbus_message_iter_get_basic(iter, &b);
2644 if (streq(name, "Accept"))
2646 else if (streq(name, "NeedDaemonReload"))
2647 i->need_daemon_reload = b;
2648 else if (streq(name, "ConditionResult"))
2649 i->condition_result = b;
2654 case DBUS_TYPE_UINT32: {
2657 dbus_message_iter_get_basic(iter, &u);
2659 if (streq(name, "MainPID")) {
2661 i->main_pid = (pid_t) u;
2664 } else if (streq(name, "ControlPID"))
2665 i->control_pid = (pid_t) u;
2666 else if (streq(name, "ExecMainPID")) {
2668 i->main_pid = (pid_t) u;
2669 } else if (streq(name, "NAccepted"))
2671 else if (streq(name, "NConnections"))
2672 i->n_connections = u;
2677 case DBUS_TYPE_INT32: {
2680 dbus_message_iter_get_basic(iter, &j);
2682 if (streq(name, "ExecMainCode"))
2683 i->exit_code = (int) j;
2684 else if (streq(name, "ExecMainStatus"))
2685 i->exit_status = (int) j;
2690 case DBUS_TYPE_UINT64: {
2693 dbus_message_iter_get_basic(iter, &u);
2695 if (streq(name, "ExecMainStartTimestamp"))
2696 i->start_timestamp = (usec_t) u;
2697 else if (streq(name, "ExecMainExitTimestamp"))
2698 i->exit_timestamp = (usec_t) u;
2699 else if (streq(name, "ActiveEnterTimestamp"))
2700 i->active_enter_timestamp = (usec_t) u;
2701 else if (streq(name, "InactiveEnterTimestamp"))
2702 i->inactive_enter_timestamp = (usec_t) u;
2703 else if (streq(name, "InactiveExitTimestamp"))
2704 i->inactive_exit_timestamp = (usec_t) u;
2705 else if (streq(name, "InactiveExitTimestampMonotonic"))
2706 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2707 else if (streq(name, "ActiveExitTimestamp"))
2708 i->active_exit_timestamp = (usec_t) u;
2709 else if (streq(name, "ConditionTimestamp"))
2710 i->condition_timestamp = (usec_t) u;
2715 case DBUS_TYPE_ARRAY: {
2717 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2718 startswith(name, "Exec")) {
2719 DBusMessageIter sub;
2721 dbus_message_iter_recurse(iter, &sub);
2722 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2723 ExecStatusInfo *info;
2726 if (!(info = new0(ExecStatusInfo, 1)))
2729 if (!(info->name = strdup(name))) {
2734 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2739 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2741 dbus_message_iter_next(&sub);
2744 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Listen")) {
2745 DBusMessageIter sub, sub2;
2747 dbus_message_iter_recurse(iter, &sub);
2748 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2749 const char *type, *path;
2751 dbus_message_iter_recurse(&sub, &sub2);
2753 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2754 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0) {
2757 r = strv_extend(&i->listen, type);
2760 r = strv_extend(&i->listen, path);
2765 dbus_message_iter_next(&sub);
2770 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2771 streq(name, "Documentation")) {
2773 DBusMessageIter sub;
2775 dbus_message_iter_recurse(iter, &sub);
2776 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2780 dbus_message_iter_get_basic(&sub, &s);
2782 r = strv_extend(&i->documentation, s);
2786 dbus_message_iter_next(&sub);
2793 case DBUS_TYPE_STRUCT: {
2795 if (streq(name, "LoadError")) {
2796 DBusMessageIter sub;
2797 const char *n, *message;
2800 dbus_message_iter_recurse(iter, &sub);
2802 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2806 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2810 if (!isempty(message))
2811 i->load_error = message;
2821 static int print_property(const char *name, DBusMessageIter *iter) {
2825 /* This is a low-level property printer, see
2826 * print_status_info() for the nicer output */
2828 if (arg_property && !strv_find(arg_property, name))
2831 switch (dbus_message_iter_get_arg_type(iter)) {
2833 case DBUS_TYPE_STRUCT: {
2834 DBusMessageIter sub;
2835 dbus_message_iter_recurse(iter, &sub);
2837 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2840 dbus_message_iter_get_basic(&sub, &u);
2843 printf("%s=%u\n", name, (unsigned) u);
2845 printf("%s=\n", name);
2848 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2851 dbus_message_iter_get_basic(&sub, &s);
2853 if (arg_all || s[0])
2854 printf("%s=%s\n", name, s);
2857 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2858 const char *a = NULL, *b = NULL;
2860 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2861 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2863 if (arg_all || !isempty(a) || !isempty(b))
2864 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2872 case DBUS_TYPE_ARRAY:
2874 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2875 DBusMessageIter sub, sub2;
2877 dbus_message_iter_recurse(iter, &sub);
2878 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2882 dbus_message_iter_recurse(&sub, &sub2);
2884 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2885 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2886 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2888 dbus_message_iter_next(&sub);
2893 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2894 DBusMessageIter sub, sub2;
2896 dbus_message_iter_recurse(iter, &sub);
2898 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2899 const char *type, *path;
2901 dbus_message_iter_recurse(&sub, &sub2);
2903 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2904 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2905 printf("%s=%s\n", type, path);
2907 dbus_message_iter_next(&sub);
2912 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Listen")) {
2913 DBusMessageIter sub, sub2;
2915 dbus_message_iter_recurse(iter, &sub);
2916 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2917 const char *type, *path;
2919 dbus_message_iter_recurse(&sub, &sub2);
2921 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2922 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2923 printf("Listen%s=%s\n", type, path);
2925 dbus_message_iter_next(&sub);
2930 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2931 DBusMessageIter sub, sub2;
2933 dbus_message_iter_recurse(iter, &sub);
2934 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2936 uint64_t value, next_elapse;
2938 dbus_message_iter_recurse(&sub, &sub2);
2940 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2941 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2942 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2943 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2945 printf("%s={ value=%s ; next_elapse=%s }\n",
2947 format_timespan(timespan1, sizeof(timespan1), value, 0),
2948 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
2951 dbus_message_iter_next(&sub);
2956 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2957 DBusMessageIter sub, sub2;
2959 dbus_message_iter_recurse(iter, &sub);
2960 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2961 const char *controller, *attr, *value;
2963 dbus_message_iter_recurse(&sub, &sub2);
2965 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
2966 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
2967 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
2969 printf("ControlGroupAttributes={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
2975 dbus_message_iter_next(&sub);
2980 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2981 DBusMessageIter sub;
2983 dbus_message_iter_recurse(iter, &sub);
2984 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2985 ExecStatusInfo info;
2988 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2989 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2990 char _cleanup_free_ *t;
2992 t = strv_join(info.argv, " ");
2994 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2998 yes_no(info.ignore),
2999 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3000 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3001 (unsigned) info. pid,
3002 sigchld_code_to_string(info.code),
3004 info.code == CLD_EXITED ? "" : "/",
3005 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3009 strv_free(info.argv);
3011 dbus_message_iter_next(&sub);
3020 if (generic_print_property(name, iter, arg_all) > 0)
3024 printf("%s=[unprintable]\n", name);
3029 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3030 DBusMessage _cleanup_free_ *reply = NULL;
3031 const char *interface = "";
3033 DBusMessageIter iter, sub, sub2, sub3;
3034 UnitStatusInfo info;
3042 r = bus_method_call_with_reply(
3044 "org.freedesktop.systemd1",
3046 "org.freedesktop.DBus.Properties",
3050 DBUS_TYPE_STRING, &interface,
3055 if (!dbus_message_iter_init(reply, &iter) ||
3056 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3057 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3058 log_error("Failed to parse reply.");
3062 dbus_message_iter_recurse(&iter, &sub);
3069 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3072 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
3073 dbus_message_iter_recurse(&sub, &sub2);
3075 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
3076 dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3077 log_error("Failed to parse reply.");
3081 dbus_message_iter_recurse(&sub2, &sub3);
3083 if (show_properties)
3084 r = print_property(name, &sub3);
3086 r = status_property(name, &sub3, &info);
3088 log_error("Failed to parse reply.");
3092 dbus_message_iter_next(&sub);
3097 if (!show_properties) {
3098 if (streq(verb, "help"))
3099 show_unit_help(&info);
3101 print_status_info(&info);
3104 strv_free(info.documentation);
3105 strv_free(info.listen);
3107 if (!streq_ptr(info.active_state, "active") &&
3108 !streq_ptr(info.active_state, "reloading") &&
3109 streq(verb, "status"))
3110 /* According to LSB: "program not running" */
3113 while ((p = info.exec)) {
3114 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3115 exec_status_info_free(p);
3121 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3122 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3123 const char *path = NULL;
3124 DBusError _cleanup_dbus_error_free_ error;
3127 dbus_error_init(&error);
3129 r = bus_method_call_with_reply(
3131 "org.freedesktop.systemd1",
3132 "/org/freedesktop/systemd1",
3133 "org.freedesktop.systemd1.Manager",
3137 DBUS_TYPE_UINT32, &pid,
3142 if (!dbus_message_get_args(reply, &error,
3143 DBUS_TYPE_OBJECT_PATH, &path,
3144 DBUS_TYPE_INVALID)) {
3145 log_error("Failed to parse reply: %s", bus_error_message(&error));
3149 r = show_one(verb, bus, path, false, new_line);
3153 static int show_all(const char* verb, DBusConnection *bus, bool show_properties, bool *new_line) {
3154 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3155 _cleanup_free_ struct unit_info *unit_infos = NULL;
3157 const struct unit_info *u;
3160 r = get_unit_list(bus, &reply, &unit_infos, &c);
3164 for (u = unit_infos; u < unit_infos + c; u++) {
3165 char _cleanup_free_ *p = NULL;
3167 if (!output_show_unit(u))
3170 p = unit_dbus_path_from_name(u->id);
3174 printf("%s -> '%s'\n", u->id, p);
3176 r = show_one(verb, bus, p, show_properties, new_line);
3184 static int show(DBusConnection *bus, char **args) {
3186 bool show_properties, show_status, new_line = false;
3192 show_properties = streq(args[0], "show");
3193 show_status = streq(args[0], "status");
3195 if (show_properties)
3196 pager_open_if_enabled();
3198 /* If no argument is specified inspect the manager itself */
3200 if (show_properties && strv_length(args) <= 1)
3201 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3203 if (show_status && strv_length(args) <= 1)
3204 return show_all(args[0], bus, false, &new_line);
3206 STRV_FOREACH(name, args+1) {
3209 if (safe_atou32(*name, &id) < 0) {
3210 _cleanup_free_ char *p = NULL, *n = NULL;
3211 /* Interpret as unit name */
3213 n = unit_name_mangle(*name);
3217 p = unit_dbus_path_from_name(n);
3221 r = show_one(args[0], bus, p, show_properties, &new_line);
3225 } else if (show_properties) {
3226 _cleanup_free_ char *p = NULL;
3228 /* Interpret as job id */
3229 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3232 r = show_one(args[0], bus, p, show_properties, &new_line);
3237 /* Interpret as PID */
3238 r = show_one_by_pid(args[0], bus, id, &new_line);
3247 static int dump(DBusConnection *bus, char **args) {
3248 _cleanup_free_ DBusMessage *reply = NULL;
3253 dbus_error_init(&error);
3255 pager_open_if_enabled();
3257 r = bus_method_call_with_reply(
3259 "org.freedesktop.systemd1",
3260 "/org/freedesktop/systemd1",
3261 "org.freedesktop.systemd1.Manager",
3269 if (!dbus_message_get_args(reply, &error,
3270 DBUS_TYPE_STRING, &text,
3271 DBUS_TYPE_INVALID)) {
3272 log_error("Failed to parse reply: %s", bus_error_message(&error));
3273 dbus_error_free(&error);
3277 fputs(text, stdout);
3281 static int snapshot(DBusConnection *bus, char **args) {
3282 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3285 dbus_bool_t cleanup = FALSE;
3286 DBusMessageIter iter, sub;
3289 *interface = "org.freedesktop.systemd1.Unit",
3291 _cleanup_free_ char *n = NULL;
3293 dbus_error_init(&error);
3295 if (strv_length(args) > 1)
3296 n = snapshot_name_mangle(args[1]);
3302 r = bus_method_call_with_reply (
3304 "org.freedesktop.systemd1",
3305 "/org/freedesktop/systemd1",
3306 "org.freedesktop.systemd1.Manager",
3310 DBUS_TYPE_STRING, &n,
3311 DBUS_TYPE_BOOLEAN, &cleanup,
3316 if (!dbus_message_get_args(reply, &error,
3317 DBUS_TYPE_OBJECT_PATH, &path,
3318 DBUS_TYPE_INVALID)) {
3319 log_error("Failed to parse reply: %s", bus_error_message(&error));
3320 dbus_error_free(&error);
3324 dbus_message_unref(reply);
3327 r = bus_method_call_with_reply (
3329 "org.freedesktop.systemd1",
3331 "org.freedesktop.DBus.Properties",
3335 DBUS_TYPE_STRING, &interface,
3336 DBUS_TYPE_STRING, &property,
3341 if (!dbus_message_iter_init(reply, &iter) ||
3342 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3343 log_error("Failed to parse reply.");
3347 dbus_message_iter_recurse(&iter, &sub);
3349 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3350 log_error("Failed to parse reply.");
3354 dbus_message_iter_get_basic(&sub, &id);
3362 static int delete_snapshot(DBusConnection *bus, char **args) {
3367 STRV_FOREACH(name, args+1) {
3368 _cleanup_free_ char *n = NULL;
3371 n = snapshot_name_mangle(*name);
3375 r = bus_method_call_with_reply(
3377 "org.freedesktop.systemd1",
3378 "/org/freedesktop/systemd1",
3379 "org.freedesktop.systemd1.Manager",
3383 DBUS_TYPE_STRING, &n,
3392 static int daemon_reload(DBusConnection *bus, char **args) {
3397 if (arg_action == ACTION_RELOAD)
3399 else if (arg_action == ACTION_REEXEC)
3400 method = "Reexecute";
3402 assert(arg_action == ACTION_SYSTEMCTL);
3405 streq(args[0], "clear-jobs") ||
3406 streq(args[0], "cancel") ? "ClearJobs" :
3407 streq(args[0], "daemon-reexec") ? "Reexecute" :
3408 streq(args[0], "reset-failed") ? "ResetFailed" :
3409 streq(args[0], "halt") ? "Halt" :
3410 streq(args[0], "poweroff") ? "PowerOff" :
3411 streq(args[0], "reboot") ? "Reboot" :
3412 streq(args[0], "kexec") ? "KExec" :
3413 streq(args[0], "exit") ? "Exit" :
3414 /* "daemon-reload" */ "Reload";
3417 r = bus_method_call_with_reply(
3419 "org.freedesktop.systemd1",
3420 "/org/freedesktop/systemd1",
3421 "org.freedesktop.systemd1.Manager",
3427 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
3428 /* There's always a fallback possible for
3429 * legacy actions. */
3431 else if (r == -ETIMEDOUT && streq(method, "Reexecute"))
3432 /* On reexecution, we expect a disconnect, not
3436 log_error("Failed to issue method call: %s", bus_error_message(&error));
3438 dbus_error_free(&error);
3442 static int reset_failed(DBusConnection *bus, char **args) {
3446 if (strv_length(args) <= 1)
3447 return daemon_reload(bus, args);
3449 STRV_FOREACH(name, args+1) {
3450 _cleanup_free_ char *n;
3452 n = unit_name_mangle(*name);
3456 r = bus_method_call_with_reply(
3458 "org.freedesktop.systemd1",
3459 "/org/freedesktop/systemd1",
3460 "org.freedesktop.systemd1.Manager",
3464 DBUS_TYPE_STRING, &n,
3473 static int show_enviroment(DBusConnection *bus, char **args) {
3474 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3475 DBusMessageIter iter, sub, sub2;
3478 *interface = "org.freedesktop.systemd1.Manager",
3479 *property = "Environment";
3481 pager_open_if_enabled();
3483 r = bus_method_call_with_reply(
3485 "org.freedesktop.systemd1",
3486 "/org/freedesktop/systemd1",
3487 "org.freedesktop.DBus.Properties",
3491 DBUS_TYPE_STRING, &interface,
3492 DBUS_TYPE_STRING, &property,
3497 if (!dbus_message_iter_init(reply, &iter) ||
3498 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3499 log_error("Failed to parse reply.");
3503 dbus_message_iter_recurse(&iter, &sub);
3505 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3506 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3507 log_error("Failed to parse reply.");
3511 dbus_message_iter_recurse(&sub, &sub2);
3513 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3516 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3517 log_error("Failed to parse reply.");
3521 dbus_message_iter_get_basic(&sub2, &text);
3524 dbus_message_iter_next(&sub2);
3530 static int switch_root(DBusConnection *bus, char **args) {
3533 _cleanup_free_ char *init = NULL;
3535 l = strv_length(args);
3536 if (l < 2 || l > 3) {
3537 log_error("Wrong number of arguments.");
3544 init = strdup(args[2]);
3546 parse_env_file("/proc/cmdline", WHITESPACE,
3556 log_debug("switching root - root: %s; init: %s", root, init);
3558 return bus_method_call_with_reply(
3560 "org.freedesktop.systemd1",
3561 "/org/freedesktop/systemd1",
3562 "org.freedesktop.systemd1.Manager",
3566 DBUS_TYPE_STRING, &root,
3567 DBUS_TYPE_STRING, &init,
3571 static int set_environment(DBusConnection *bus, char **args) {
3572 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
3575 DBusMessageIter iter;
3581 dbus_error_init(&error);
3583 method = streq(args[0], "set-environment")
3585 : "UnsetEnvironment";
3587 m = dbus_message_new_method_call(
3588 "org.freedesktop.systemd1",
3589 "/org/freedesktop/systemd1",
3590 "org.freedesktop.systemd1.Manager",
3595 dbus_message_iter_init_append(m, &iter);
3597 r = bus_append_strv_iter(&iter, args + 1);
3601 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3603 log_error("Failed to issue method call: %s", bus_error_message(&error));
3604 dbus_error_free(&error);
3611 static int enable_sysv_units(char **args) {
3614 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
3615 const char *verb = args[0];
3616 unsigned f = 1, t = 1;
3619 if (arg_scope != UNIT_FILE_SYSTEM)
3622 if (!streq(verb, "enable") &&
3623 !streq(verb, "disable") &&
3624 !streq(verb, "is-enabled"))
3627 /* Processes all SysV units, and reshuffles the array so that
3628 * afterwards only the native units remain */
3631 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
3636 for (f = 1; args[f]; f++) {
3639 bool found_native = false, found_sysv;
3641 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3642 char **k, *l, *q = NULL;
3649 if (!endswith(name, ".service"))
3652 if (path_is_absolute(name))
3655 STRV_FOREACH(k, paths.unit_path) {
3658 if (!isempty(arg_root))
3659 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3661 asprintf(&p, "%s/%s", *k, name);
3668 found_native = access(p, F_OK) >= 0;
3679 if (!isempty(arg_root))
3680 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3682 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3688 p[strlen(p) - sizeof(".service") + 1] = 0;
3689 found_sysv = access(p, F_OK) >= 0;
3696 /* Mark this entry, so that we don't try enabling it as native unit */
3697 args[f] = (char*) "";
3699 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3701 if (!isempty(arg_root))
3702 argv[c++] = q = strappend("--root=", arg_root);
3704 argv[c++] = path_get_file_name(p);
3706 streq(verb, "enable") ? "on" :
3707 streq(verb, "disable") ? "off" : "--level=5";
3710 l = strv_join((char**)argv, " ");
3718 log_info("Executing %s", l);
3723 log_error("Failed to fork: %m");
3728 } else if (pid == 0) {
3731 execv(argv[0], (char**) argv);
3732 _exit(EXIT_FAILURE);
3738 j = wait_for_terminate(pid, &status);
3740 log_error("Failed to wait for child: %s", strerror(-r));
3745 if (status.si_code == CLD_EXITED) {
3746 if (streq(verb, "is-enabled")) {
3747 if (status.si_status == 0) {
3756 } else if (status.si_status != 0) {
3767 lookup_paths_free(&paths);
3769 /* Drop all SysV units */
3770 for (f = 1, t = 1; args[f]; f++) {
3772 if (isempty(args[f]))
3775 args[t++] = args[f];
3784 static int mangle_names(char **original_names, char ***mangled_names) {
3785 char **i, **l, **name;
3787 l = new(char*, strv_length(original_names) + 1);
3792 STRV_FOREACH(name, original_names) {
3794 /* When enabling units qualified path names are OK,
3795 * too, hence allow them explicitly. */
3800 *i = unit_name_mangle(*name);
3816 static int enable_unit(DBusConnection *bus, char **args) {
3817 const char *verb = args[0];
3818 UnitFileChange *changes = NULL;
3819 unsigned n_changes = 0, i;
3820 int carries_install_info = -1;
3821 DBusMessage _cleanup_dbus_message_unref_ *m = NULL, *reply = NULL;
3823 DBusError _cleanup_dbus_error_free_ error;
3824 char _cleanup_strv_free_ **mangled_names = NULL;
3826 dbus_error_init(&error);
3828 r = enable_sysv_units(args);
3835 if (!bus || avoid_bus()) {
3836 if (streq(verb, "enable")) {
3837 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3838 carries_install_info = r;
3839 } else if (streq(verb, "disable"))
3840 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3841 else if (streq(verb, "reenable")) {
3842 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3843 carries_install_info = r;
3844 } else if (streq(verb, "link"))
3845 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3846 else if (streq(verb, "preset")) {
3847 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3848 carries_install_info = r;
3849 } else if (streq(verb, "mask"))
3850 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3851 else if (streq(verb, "unmask"))
3852 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3854 assert_not_reached("Unknown verb");
3857 log_error("Operation failed: %s", strerror(-r));
3862 for (i = 0; i < n_changes; i++) {
3863 if (changes[i].type == UNIT_FILE_SYMLINK)
3864 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
3866 log_info("rm '%s'", changes[i].path);
3873 bool send_force = true, expect_carries_install_info = false;
3875 DBusMessageIter iter, sub, sub2;
3877 if (streq(verb, "enable")) {
3878 method = "EnableUnitFiles";
3879 expect_carries_install_info = true;
3880 } else if (streq(verb, "disable")) {
3881 method = "DisableUnitFiles";
3883 } else if (streq(verb, "reenable")) {
3884 method = "ReenableUnitFiles";
3885 expect_carries_install_info = true;
3886 } else if (streq(verb, "link"))
3887 method = "LinkUnitFiles";
3888 else if (streq(verb, "preset")) {
3889 method = "PresetUnitFiles";
3890 expect_carries_install_info = true;
3891 } else if (streq(verb, "mask"))
3892 method = "MaskUnitFiles";
3893 else if (streq(verb, "unmask")) {
3894 method = "UnmaskUnitFiles";
3897 assert_not_reached("Unknown verb");
3899 m = dbus_message_new_method_call(
3900 "org.freedesktop.systemd1",
3901 "/org/freedesktop/systemd1",
3902 "org.freedesktop.systemd1.Manager",
3909 dbus_message_iter_init_append(m, &iter);
3911 r = mangle_names(args+1, &mangled_names);
3915 r = bus_append_strv_iter(&iter, mangled_names);
3917 log_error("Failed to append unit files.");
3922 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
3923 log_error("Failed to append runtime boolean.");
3931 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
3932 log_error("Failed to append force boolean.");
3938 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3940 log_error("Failed to issue method call: %s", bus_error_message(&error));
3945 if (!dbus_message_iter_init(reply, &iter)) {
3946 log_error("Failed to initialize iterator.");
3950 if (expect_carries_install_info) {
3951 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
3953 log_error("Failed to parse reply.");
3957 carries_install_info = b;
3960 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3961 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
3962 log_error("Failed to parse reply.");
3967 dbus_message_iter_recurse(&iter, &sub);
3968 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3969 const char *type, *path, *source;
3971 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
3972 log_error("Failed to parse reply.");
3977 dbus_message_iter_recurse(&sub, &sub2);
3979 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
3980 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
3981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
3982 log_error("Failed to parse reply.");
3988 if (streq(type, "symlink"))
3989 log_info("ln -s '%s' '%s'", source, path);
3991 log_info("rm '%s'", path);
3994 dbus_message_iter_next(&sub);
3997 /* Try to reload if enabeld */
3999 r = daemon_reload(bus, args);
4002 if (carries_install_info == 0)
4003 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
4004 "using systemctl.\n"
4005 "Possible reasons for having this kind of units are:\n"
4006 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4007 " .wants/ or .requires/ directory.\n"
4008 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4009 " a requirement dependency on it.\n"
4010 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4011 " D-Bus, udev, scripted systemctl call, ...).\n");
4014 unit_file_changes_free(changes, n_changes);
4019 static int unit_is_enabled(DBusConnection *bus, char **args) {
4020 DBusError _cleanup_dbus_error_free_ error;
4022 DBusMessage _cleanup_dbus_message_unref_ *reply = NULL;
4027 dbus_error_init(&error);
4029 r = enable_sysv_units(args);
4035 if (!bus || avoid_bus()) {
4037 STRV_FOREACH(name, args+1) {
4038 UnitFileState state;
4040 n = unit_name_mangle(*name);
4044 state = unit_file_get_state(arg_scope, arg_root, n);
4051 if (state == UNIT_FILE_ENABLED ||
4052 state == UNIT_FILE_ENABLED_RUNTIME ||
4053 state == UNIT_FILE_STATIC)
4057 puts(unit_file_state_to_string(state));
4061 STRV_FOREACH(name, args+1) {
4064 n = unit_name_mangle(*name);
4068 r = bus_method_call_with_reply (
4070 "org.freedesktop.systemd1",
4071 "/org/freedesktop/systemd1",
4072 "org.freedesktop.systemd1.Manager",
4076 DBUS_TYPE_STRING, &n,
4084 if (!dbus_message_get_args(reply, &error,
4085 DBUS_TYPE_STRING, &s,
4086 DBUS_TYPE_INVALID)) {
4087 log_error("Failed to parse reply: %s", bus_error_message(&error));
4091 dbus_message_unref(reply);
4094 if (streq(s, "enabled") ||
4095 streq(s, "enabled-runtime") ||
4104 return enabled ? 0 : 1;
4107 static int systemctl_help(void) {
4109 pager_open_if_enabled();
4111 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4112 "Query or send control commands to the systemd manager.\n\n"
4113 " -h --help Show this help\n"
4114 " --version Show package version\n"
4115 " -t --type=TYPE List only units of a particular type\n"
4116 " -p --property=NAME Show only properties by this name\n"
4117 " -a --all Show all units/properties, including dead/empty ones\n"
4118 " --failed Show only failed units\n"
4119 " --full Don't ellipsize unit names on output\n"
4120 " --fail When queueing a new job, fail if conflicting jobs are\n"
4122 " --ignore-dependencies\n"
4123 " When queueing a new job, ignore all its dependencies\n"
4124 " -i --ignore-inhibitors\n"
4125 " When shutting down or sleeping, ignore inhibitors\n"
4126 " --kill-who=WHO Who to send signal to\n"
4127 " -s --signal=SIGNAL Which signal to send\n"
4128 " -H --host=[USER@]HOST\n"
4129 " Show information for remote host\n"
4130 " -P --privileged Acquire privileges before execution\n"
4131 " -q --quiet Suppress output\n"
4132 " --no-block Do not wait until operation finished\n"
4133 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4134 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4136 " --no-legend Do not print a legend (column headers and hints)\n"
4137 " --no-pager Do not pipe output into a pager\n"
4138 " --no-ask-password\n"
4139 " Do not ask for system passwords\n"
4140 " --system Connect to system manager\n"
4141 " --user Connect to user service manager\n"
4142 " --global Enable/disable unit files globally\n"
4143 " -f --force When enabling unit files, override existing symlinks\n"
4144 " When shutting down, execute action immediately\n"
4145 " --root=PATH Enable unit files in the specified root directory\n"
4146 " --runtime Enable unit files only temporarily until next reboot\n"
4147 " -n --lines=INTEGER Journal entries to show\n"
4148 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4149 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4151 " list-units List loaded units\n"
4152 " start [NAME...] Start (activate) one or more units\n"
4153 " stop [NAME...] Stop (deactivate) one or more units\n"
4154 " reload [NAME...] Reload one or more units\n"
4155 " restart [NAME...] Start or restart one or more units\n"
4156 " try-restart [NAME...] Restart one or more units if active\n"
4157 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4158 " otherwise start or restart\n"
4159 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4160 " otherwise restart if active\n"
4161 " isolate [NAME] Start one unit and stop all others\n"
4162 " kill [NAME...] Send signal to processes of a unit\n"
4163 " is-active [NAME...] Check whether units are active\n"
4164 " is-failed [NAME...] Check whether units are failed\n"
4165 " status [NAME...|PID...] Show runtime status of one or more units\n"
4166 " show [NAME...|JOB...] Show properties of one or more\n"
4167 " units/jobs or the manager\n"
4168 " help [NAME...|PID...] Show manual for one or more units\n"
4169 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4171 " get-cgroup-attr [NAME] [ATTR] ...\n"
4172 " Get control group attrubute\n"
4173 " set-cgroup-attr [NAME] [ATTR] [VALUE] ...\n"
4174 " Set control group attribute\n"
4175 " unset-cgroup-attr [NAME] [ATTR...]\n"
4176 " Unset control group attribute\n"
4177 " set-cgroup [NAME] [CGROUP...] Add unit to a control group\n"
4178 " unset-cgroup [NAME] [CGROUP...] Remove unit from a control group\n"
4179 " load [NAME...] Load one or more units\n"
4180 " list-dependencies [NAME] Recursively show units which are required\n"
4181 " or wanted by this unit\n\n"
4182 "Unit File Commands:\n"
4183 " list-unit-files List installed unit files\n"
4184 " enable [NAME...] Enable one or more unit files\n"
4185 " disable [NAME...] Disable one or more unit files\n"
4186 " reenable [NAME...] Reenable one or more unit files\n"
4187 " preset [NAME...] Enable/disable one or more unit files\n"
4188 " based on preset configuration\n"
4189 " mask [NAME...] Mask one or more units\n"
4190 " unmask [NAME...] Unmask one or more units\n"
4191 " link [PATH...] Link one or more units files into\n"
4192 " the search path\n"
4193 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4195 " list-jobs List jobs\n"
4196 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4197 "Status Commands:\n"
4198 " dump Dump server status\n"
4199 "Snapshot Commands:\n"
4200 " snapshot [NAME] Create a snapshot\n"
4201 " delete [NAME...] Remove one or more snapshots\n\n"
4202 "Environment Commands:\n"
4203 " show-environment Dump environment\n"
4204 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4205 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4206 "Manager Lifecycle Commands:\n"
4207 " daemon-reload Reload systemd manager configuration\n"
4208 " daemon-reexec Reexecute systemd manager\n\n"
4209 "System Commands:\n"
4210 " default Enter system default mode\n"
4211 " rescue Enter system rescue mode\n"
4212 " emergency Enter system emergency mode\n"
4213 " halt Shut down and halt the system\n"
4214 " poweroff Shut down and power-off the system\n"
4215 " reboot Shut down and reboot the system\n"
4216 " kexec Shut down and reboot the system with kexec\n"
4217 " exit Request user instance exit\n"
4218 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4219 " suspend Suspend the system\n"
4220 " hibernate Hibernate the system\n"
4221 " hybrid-sleep Hibernate and suspend the system\n",
4222 program_invocation_short_name);
4227 static int halt_help(void) {
4229 printf("%s [OPTIONS...]\n\n"
4230 "%s the system.\n\n"
4231 " --help Show this help\n"
4232 " --halt Halt the machine\n"
4233 " -p --poweroff Switch off the machine\n"
4234 " --reboot Reboot the machine\n"
4235 " -f --force Force immediate halt/power-off/reboot\n"
4236 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4237 " -d --no-wtmp Don't write wtmp record\n"
4238 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4239 program_invocation_short_name,
4240 arg_action == ACTION_REBOOT ? "Reboot" :
4241 arg_action == ACTION_POWEROFF ? "Power off" :
4247 static int shutdown_help(void) {
4249 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4250 "Shut down the system.\n\n"
4251 " --help Show this help\n"
4252 " -H --halt Halt the machine\n"
4253 " -P --poweroff Power-off the machine\n"
4254 " -r --reboot Reboot the machine\n"
4255 " -h Equivalent to --poweroff, overridden by --halt\n"
4256 " -k Don't halt/power-off/reboot, just send warnings\n"
4257 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4258 " -c Cancel a pending shutdown\n",
4259 program_invocation_short_name);
4264 static int telinit_help(void) {
4266 printf("%s [OPTIONS...] {COMMAND}\n\n"
4267 "Send control commands to the init daemon.\n\n"
4268 " --help Show this help\n"
4269 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4271 " 0 Power-off the machine\n"
4272 " 6 Reboot the machine\n"
4273 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4274 " 1, s, S Enter rescue mode\n"
4275 " q, Q Reload init daemon configuration\n"
4276 " u, U Reexecute init daemon\n",
4277 program_invocation_short_name);
4282 static int runlevel_help(void) {
4284 printf("%s [OPTIONS...]\n\n"
4285 "Prints the previous and current runlevel of the init system.\n\n"
4286 " --help Show this help\n",
4287 program_invocation_short_name);
4292 static int help_types(void) {
4296 puts("Available unit types:");
4297 for(i = 0; i < _UNIT_TYPE_MAX; i++) {
4298 t = unit_type_to_string(i);
4303 puts("\nAvailable unit load states: ");
4304 for(i = 0; i < _UNIT_LOAD_STATE_MAX; i++) {
4305 t = unit_load_state_to_string(i);
4313 static int systemctl_parse_argv(int argc, char *argv[]) {
4318 ARG_IGNORE_DEPENDENCIES,
4331 ARG_NO_ASK_PASSWORD,
4337 static const struct option options[] = {
4338 { "help", no_argument, NULL, 'h' },
4339 { "version", no_argument, NULL, ARG_VERSION },
4340 { "type", required_argument, NULL, 't' },
4341 { "property", required_argument, NULL, 'p' },
4342 { "all", no_argument, NULL, 'a' },
4343 { "failed", no_argument, NULL, ARG_FAILED },
4344 { "full", no_argument, NULL, ARG_FULL },
4345 { "fail", no_argument, NULL, ARG_FAIL },
4346 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE },
4347 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4348 { "ignore-inhibitors", no_argument, NULL, 'i' },
4349 { "user", no_argument, NULL, ARG_USER },
4350 { "system", no_argument, NULL, ARG_SYSTEM },
4351 { "global", no_argument, NULL, ARG_GLOBAL },
4352 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4353 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4354 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4355 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4356 { "quiet", no_argument, NULL, 'q' },
4357 { "root", required_argument, NULL, ARG_ROOT },
4358 { "force", no_argument, NULL, ARG_FORCE },
4359 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4360 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4361 { "signal", required_argument, NULL, 's' },
4362 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4363 { "host", required_argument, NULL, 'H' },
4364 { "privileged",no_argument, NULL, 'P' },
4365 { "runtime", no_argument, NULL, ARG_RUNTIME },
4366 { "lines", required_argument, NULL, 'n' },
4367 { "output", required_argument, NULL, 'o' },
4368 { NULL, 0, NULL, 0 }
4376 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:i", options, NULL)) >= 0) {
4385 puts(PACKAGE_STRING);
4386 puts(SYSTEMD_FEATURES);
4390 if (streq(optarg, "help")) {
4395 if (unit_type_from_string(optarg) >= 0) {
4399 if (unit_load_state_from_string(optarg) >= 0) {
4400 arg_load_state = optarg;
4403 log_error("Unkown unit type or load state '%s'.",
4405 log_info("Use -t help to see a list of allowed values.");
4410 /* Make sure that if the empty property list
4411 was specified, we won't show any properties. */
4412 const char *source = isempty(optarg) ? " " : optarg;
4414 FOREACH_WORD_SEPARATOR(word, size, source, ",", state) {
4415 char _cleanup_free_ *prop;
4418 prop = strndup(word, size);
4422 tmp = strv_append(arg_property, prop);
4426 strv_free(arg_property);
4430 /* If the user asked for a particular
4431 * property, show it to him, even if it is
4443 arg_job_mode = "fail";
4446 case ARG_IRREVERSIBLE:
4447 arg_job_mode = "replace-irreversibly";
4450 case ARG_IGNORE_DEPENDENCIES:
4451 arg_job_mode = "ignore-dependencies";
4455 arg_scope = UNIT_FILE_USER;
4459 arg_scope = UNIT_FILE_SYSTEM;
4463 arg_scope = UNIT_FILE_GLOBAL;
4467 arg_no_block = true;
4471 arg_no_legend = true;
4475 arg_no_pager = true;
4507 arg_no_reload = true;
4511 arg_kill_who = optarg;
4515 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4516 log_error("Failed to parse signal string %s.", optarg);
4521 case ARG_NO_ASK_PASSWORD:
4522 arg_ask_password = false;
4526 arg_transport = TRANSPORT_POLKIT;
4530 arg_transport = TRANSPORT_SSH;
4539 if (safe_atou(optarg, &arg_lines) < 0) {
4540 log_error("Failed to parse lines '%s'", optarg);
4546 arg_output = output_mode_from_string(optarg);
4547 if (arg_output < 0) {
4548 log_error("Unknown output '%s'.", optarg);
4554 arg_ignore_inhibitors = true;
4561 log_error("Unknown option code '%c'.", c);
4566 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4567 log_error("Cannot access user instance remotely.");
4574 static int halt_parse_argv(int argc, char *argv[]) {
4583 static const struct option options[] = {
4584 { "help", no_argument, NULL, ARG_HELP },
4585 { "halt", no_argument, NULL, ARG_HALT },
4586 { "poweroff", no_argument, NULL, 'p' },
4587 { "reboot", no_argument, NULL, ARG_REBOOT },
4588 { "force", no_argument, NULL, 'f' },
4589 { "wtmp-only", no_argument, NULL, 'w' },
4590 { "no-wtmp", no_argument, NULL, 'd' },
4591 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4592 { NULL, 0, NULL, 0 }
4600 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4601 if (runlevel == '0' || runlevel == '6')
4604 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4612 arg_action = ACTION_HALT;
4616 if (arg_action != ACTION_REBOOT)
4617 arg_action = ACTION_POWEROFF;
4621 arg_action = ACTION_REBOOT;
4643 /* Compatibility nops */
4650 log_error("Unknown option code '%c'.", c);
4655 if (optind < argc) {
4656 log_error("Too many arguments.");
4663 static int parse_time_spec(const char *t, usec_t *_u) {
4667 if (streq(t, "now"))
4669 else if (!strchr(t, ':')) {
4672 if (safe_atou64(t, &u) < 0)
4675 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4684 hour = strtol(t, &e, 10);
4685 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
4688 minute = strtol(e+1, &e, 10);
4689 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
4692 n = now(CLOCK_REALTIME);
4693 s = (time_t) (n / USEC_PER_SEC);
4696 assert_se(localtime_r(&s, &tm));
4698 tm.tm_hour = (int) hour;
4699 tm.tm_min = (int) minute;
4702 assert_se(s = mktime(&tm));
4704 *_u = (usec_t) s * USEC_PER_SEC;
4707 *_u += USEC_PER_DAY;
4713 static int shutdown_parse_argv(int argc, char *argv[]) {
4720 static const struct option options[] = {
4721 { "help", no_argument, NULL, ARG_HELP },
4722 { "halt", no_argument, NULL, 'H' },
4723 { "poweroff", no_argument, NULL, 'P' },
4724 { "reboot", no_argument, NULL, 'r' },
4725 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4726 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4727 { NULL, 0, NULL, 0 }
4735 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4743 arg_action = ACTION_HALT;
4747 arg_action = ACTION_POWEROFF;
4752 arg_action = ACTION_KEXEC;
4754 arg_action = ACTION_REBOOT;
4758 arg_action = ACTION_KEXEC;
4762 if (arg_action != ACTION_HALT)
4763 arg_action = ACTION_POWEROFF;
4776 /* Compatibility nops */
4780 arg_action = ACTION_CANCEL_SHUTDOWN;
4787 log_error("Unknown option code '%c'.", c);
4792 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
4793 r = parse_time_spec(argv[optind], &arg_when);
4795 log_error("Failed to parse time specification: %s", argv[optind]);
4799 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4801 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
4802 /* No time argument for shutdown cancel */
4803 arg_wall = argv + optind;
4804 else if (argc > optind + 1)
4805 /* We skip the time argument */
4806 arg_wall = argv + optind + 1;
4813 static int telinit_parse_argv(int argc, char *argv[]) {
4820 static const struct option options[] = {
4821 { "help", no_argument, NULL, ARG_HELP },
4822 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4823 { NULL, 0, NULL, 0 }
4826 static const struct {
4830 { '0', ACTION_POWEROFF },
4831 { '6', ACTION_REBOOT },
4832 { '1', ACTION_RESCUE },
4833 { '2', ACTION_RUNLEVEL2 },
4834 { '3', ACTION_RUNLEVEL3 },
4835 { '4', ACTION_RUNLEVEL4 },
4836 { '5', ACTION_RUNLEVEL5 },
4837 { 's', ACTION_RESCUE },
4838 { 'S', ACTION_RESCUE },
4839 { 'q', ACTION_RELOAD },
4840 { 'Q', ACTION_RELOAD },
4841 { 'u', ACTION_REEXEC },
4842 { 'U', ACTION_REEXEC }
4851 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4866 log_error("Unknown option code '%c'.", c);
4871 if (optind >= argc) {
4876 if (optind + 1 < argc) {
4877 log_error("Too many arguments.");
4881 if (strlen(argv[optind]) != 1) {
4882 log_error("Expected single character argument.");
4886 for (i = 0; i < ELEMENTSOF(table); i++)
4887 if (table[i].from == argv[optind][0])
4890 if (i >= ELEMENTSOF(table)) {
4891 log_error("Unknown command '%s'.", argv[optind]);
4895 arg_action = table[i].to;
4902 static int runlevel_parse_argv(int argc, char *argv[]) {
4908 static const struct option options[] = {
4909 { "help", no_argument, NULL, ARG_HELP },
4910 { NULL, 0, NULL, 0 }
4918 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4929 log_error("Unknown option code '%c'.", c);
4934 if (optind < argc) {
4935 log_error("Too many arguments.");
4942 static int parse_argv(int argc, char *argv[]) {
4946 if (program_invocation_short_name) {
4948 if (strstr(program_invocation_short_name, "halt")) {
4949 arg_action = ACTION_HALT;
4950 return halt_parse_argv(argc, argv);
4951 } else if (strstr(program_invocation_short_name, "poweroff")) {
4952 arg_action = ACTION_POWEROFF;
4953 return halt_parse_argv(argc, argv);
4954 } else if (strstr(program_invocation_short_name, "reboot")) {
4956 arg_action = ACTION_KEXEC;
4958 arg_action = ACTION_REBOOT;
4959 return halt_parse_argv(argc, argv);
4960 } else if (strstr(program_invocation_short_name, "shutdown")) {
4961 arg_action = ACTION_POWEROFF;
4962 return shutdown_parse_argv(argc, argv);
4963 } else if (strstr(program_invocation_short_name, "init")) {
4965 if (sd_booted() > 0) {
4966 arg_action = ACTION_INVALID;
4967 return telinit_parse_argv(argc, argv);
4969 /* Hmm, so some other init system is
4970 * running, we need to forward this
4971 * request to it. For now we simply
4972 * guess that it is Upstart. */
4974 execv(TELINIT, argv);
4976 log_error("Couldn't find an alternative telinit implementation to spawn.");
4980 } else if (strstr(program_invocation_short_name, "runlevel")) {
4981 arg_action = ACTION_RUNLEVEL;
4982 return runlevel_parse_argv(argc, argv);
4986 arg_action = ACTION_SYSTEMCTL;
4987 return systemctl_parse_argv(argc, argv);
4990 static int action_to_runlevel(void) {
4992 static const char table[_ACTION_MAX] = {
4993 [ACTION_HALT] = '0',
4994 [ACTION_POWEROFF] = '0',
4995 [ACTION_REBOOT] = '6',
4996 [ACTION_RUNLEVEL2] = '2',
4997 [ACTION_RUNLEVEL3] = '3',
4998 [ACTION_RUNLEVEL4] = '4',
4999 [ACTION_RUNLEVEL5] = '5',
5000 [ACTION_RESCUE] = '1'
5003 assert(arg_action < _ACTION_MAX);
5005 return table[arg_action];
5008 static int talk_upstart(void) {
5009 DBusMessage _cleanup_dbus_message_unref_ *m = NULL, *reply = NULL;
5010 DBusError _cleanup_dbus_error_free_ error;
5011 int previous, rl, r;
5013 env1_buf[] = "RUNLEVEL=X",
5014 env2_buf[] = "PREVLEVEL=X";
5015 char *env1 = env1_buf, *env2 = env2_buf;
5016 const char *emit = "runlevel";
5017 dbus_bool_t b_false = FALSE;
5018 DBusMessageIter iter, sub;
5019 DBusConnection *bus;
5021 dbus_error_init(&error);
5023 if (!(rl = action_to_runlevel()))
5026 if (utmp_get_runlevel(&previous, NULL) < 0)
5029 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5030 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5035 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5040 if ((r = bus_check_peercred(bus)) < 0) {
5041 log_error("Failed to verify owner of bus.");
5045 if (!(m = dbus_message_new_method_call(
5046 "com.ubuntu.Upstart",
5047 "/com/ubuntu/Upstart",
5048 "com.ubuntu.Upstart0_6",
5051 log_error("Could not allocate message.");
5056 dbus_message_iter_init_append(m, &iter);
5058 env1_buf[sizeof(env1_buf)-2] = rl;
5059 env2_buf[sizeof(env2_buf)-2] = previous;
5061 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5062 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5063 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5064 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5065 !dbus_message_iter_close_container(&iter, &sub) ||
5066 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5067 log_error("Could not append arguments to message.");
5072 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5074 if (bus_error_is_no_service(&error)) {
5079 log_error("Failed to issue method call: %s", bus_error_message(&error));
5088 dbus_connection_flush(bus);
5089 dbus_connection_close(bus);
5090 dbus_connection_unref(bus);
5096 static int talk_initctl(void) {
5097 struct init_request request = {0};
5099 int _cleanup_close_ fd = -1;
5102 rl = action_to_runlevel();
5106 request.magic = INIT_MAGIC;
5107 request.sleeptime = 0;
5108 request.cmd = INIT_CMD_RUNLVL;
5109 request.runlevel = rl;
5111 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5113 if (errno == ENOENT)
5116 log_error("Failed to open "INIT_FIFO": %m");
5121 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5123 log_error("Failed to write to "INIT_FIFO": %m");
5124 return errno ? -errno : -EIO;
5130 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5132 static const struct {
5140 int (* const dispatch)(DBusConnection *bus, char **args);
5142 { "list-units", LESS, 1, list_units },
5143 { "list-unit-files", EQUAL, 1, list_unit_files },
5144 { "list-jobs", EQUAL, 1, list_jobs },
5145 { "clear-jobs", EQUAL, 1, daemon_reload },
5146 { "load", MORE, 2, load_unit },
5147 { "cancel", MORE, 2, cancel_job },
5148 { "start", MORE, 2, start_unit },
5149 { "stop", MORE, 2, start_unit },
5150 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5151 { "reload", MORE, 2, start_unit },
5152 { "restart", MORE, 2, start_unit },
5153 { "try-restart", MORE, 2, start_unit },
5154 { "reload-or-restart", MORE, 2, start_unit },
5155 { "reload-or-try-restart", MORE, 2, start_unit },
5156 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5157 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5158 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5159 { "isolate", EQUAL, 2, start_unit },
5160 { "set-cgroup", MORE, 3, set_cgroup },
5161 { "unset-cgroup", MORE, 3, set_cgroup },
5162 { "get-cgroup-attr", MORE, 3, get_cgroup_attr },
5163 { "set-cgroup-attr", MORE, 4, set_cgroup_attr },
5164 { "unset-cgroup-attr", MORE, 3, set_cgroup },
5165 { "kill", MORE, 2, kill_unit },
5166 { "is-active", MORE, 2, check_unit_active },
5167 { "check", MORE, 2, check_unit_active },
5168 { "is-failed", MORE, 2, check_unit_failed },
5169 { "show", MORE, 1, show },
5170 { "status", MORE, 1, show },
5171 { "help", MORE, 2, show },
5172 { "dump", EQUAL, 1, dump },
5173 { "snapshot", LESS, 2, snapshot },
5174 { "delete", MORE, 2, delete_snapshot },
5175 { "daemon-reload", EQUAL, 1, daemon_reload },
5176 { "daemon-reexec", EQUAL, 1, daemon_reload },
5177 { "show-environment", EQUAL, 1, show_enviroment },
5178 { "set-environment", MORE, 2, set_environment },
5179 { "unset-environment", MORE, 2, set_environment },
5180 { "halt", EQUAL, 1, start_special },
5181 { "poweroff", EQUAL, 1, start_special },
5182 { "reboot", EQUAL, 1, start_special },
5183 { "kexec", EQUAL, 1, start_special },
5184 { "suspend", EQUAL, 1, start_special },
5185 { "hibernate", EQUAL, 1, start_special },
5186 { "hybrid-sleep", EQUAL, 1, start_special },
5187 { "default", EQUAL, 1, start_special },
5188 { "rescue", EQUAL, 1, start_special },
5189 { "emergency", EQUAL, 1, start_special },
5190 { "exit", EQUAL, 1, start_special },
5191 { "reset-failed", MORE, 1, reset_failed },
5192 { "enable", MORE, 2, enable_unit },
5193 { "disable", MORE, 2, enable_unit },
5194 { "is-enabled", MORE, 2, unit_is_enabled },
5195 { "reenable", MORE, 2, enable_unit },
5196 { "preset", MORE, 2, enable_unit },
5197 { "mask", MORE, 2, enable_unit },
5198 { "unmask", MORE, 2, enable_unit },
5199 { "link", MORE, 2, enable_unit },
5200 { "switch-root", MORE, 2, switch_root },
5201 { "list-dependencies", LESS, 2, list_dependencies },
5211 left = argc - optind;
5214 /* Special rule: no arguments means "list-units" */
5217 if (streq(argv[optind], "help") && !argv[optind+1]) {
5218 log_error("This command expects one or more "
5219 "unit names. Did you mean --help?");
5223 for (i = 0; i < ELEMENTSOF(verbs); i++)
5224 if (streq(argv[optind], verbs[i].verb))
5227 if (i >= ELEMENTSOF(verbs)) {
5228 log_error("Unknown operation '%s'.", argv[optind]);
5233 switch (verbs[i].argc_cmp) {
5236 if (left != verbs[i].argc) {
5237 log_error("Invalid number of arguments.");
5244 if (left < verbs[i].argc) {
5245 log_error("Too few arguments.");
5252 if (left > verbs[i].argc) {
5253 log_error("Too many arguments.");
5260 assert_not_reached("Unknown comparison operator.");
5263 /* Require a bus connection for all operations but
5265 if (!streq(verbs[i].verb, "enable") &&
5266 !streq(verbs[i].verb, "disable") &&
5267 !streq(verbs[i].verb, "is-enabled") &&
5268 !streq(verbs[i].verb, "list-unit-files") &&
5269 !streq(verbs[i].verb, "reenable") &&
5270 !streq(verbs[i].verb, "preset") &&
5271 !streq(verbs[i].verb, "mask") &&
5272 !streq(verbs[i].verb, "unmask") &&
5273 !streq(verbs[i].verb, "link")) {
5275 if (running_in_chroot() > 0) {
5276 log_info("Running in chroot, ignoring request.");
5280 if (((!streq(verbs[i].verb, "reboot") &&
5281 !streq(verbs[i].verb, "halt") &&
5282 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5283 log_error("Failed to get D-Bus connection: %s",
5284 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5290 if (!bus && !avoid_bus()) {
5291 log_error("Failed to get D-Bus connection: %s",
5292 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5297 return verbs[i].dispatch(bus, argv + optind);
5300 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5301 int _cleanup_close_ fd;
5302 struct msghdr msghdr;
5303 struct iovec iovec[2];
5304 union sockaddr_union sockaddr;
5305 struct sd_shutdown_command c;
5307 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5314 c.dry_run = dry_run;
5318 sockaddr.sa.sa_family = AF_UNIX;
5319 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5322 msghdr.msg_name = &sockaddr;
5323 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5326 iovec[0].iov_base = (char*) &c;
5327 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5329 if (isempty(message))
5330 msghdr.msg_iovlen = 1;
5332 iovec[1].iov_base = (char*) message;
5333 iovec[1].iov_len = strlen(message);
5334 msghdr.msg_iovlen = 2;
5336 msghdr.msg_iov = iovec;
5338 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
5344 static int reload_with_fallback(DBusConnection *bus) {
5347 /* First, try systemd via D-Bus. */
5348 if (daemon_reload(bus, NULL) >= 0)
5352 /* Nothing else worked, so let's try signals */
5353 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5355 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5356 log_error("kill() failed: %m");
5363 static int start_with_fallback(DBusConnection *bus) {
5366 /* First, try systemd via D-Bus. */
5367 if (start_unit(bus, NULL) >= 0)
5371 /* Hmm, talking to systemd via D-Bus didn't work. Then
5372 * let's try to talk to Upstart via D-Bus. */
5373 if (talk_upstart() > 0)
5376 /* Nothing else worked, so let's try
5378 if (talk_initctl() > 0)
5381 log_error("Failed to talk to init daemon.");
5385 warn_wall(arg_action);
5389 static _noreturn_ void halt_now(enum action a) {
5391 /* Make sure C-A-D is handled by the kernel from this
5393 reboot(RB_ENABLE_CAD);
5398 log_info("Halting.");
5399 reboot(RB_HALT_SYSTEM);
5402 case ACTION_POWEROFF:
5403 log_info("Powering off.");
5404 reboot(RB_POWER_OFF);
5408 log_info("Rebooting.");
5409 reboot(RB_AUTOBOOT);
5413 assert_not_reached("Unknown halt action.");
5416 assert_not_reached("Uh? This shouldn't happen.");
5419 static int halt_main(DBusConnection *bus) {
5422 r = check_inhibitors(bus, arg_action);
5426 if (geteuid() != 0) {
5427 /* Try logind if we are a normal user and no special
5428 * mode applies. Maybe PolicyKit allows us to shutdown
5431 if (arg_when <= 0 &&
5434 (arg_action == ACTION_POWEROFF ||
5435 arg_action == ACTION_REBOOT)) {
5436 r = reboot_with_logind(bus, arg_action);
5441 log_error("Must be root.");
5446 char _cleanup_free_ *m;
5448 m = strv_join(arg_wall, " ");
5449 r = send_shutdownd(arg_when,
5450 arg_action == ACTION_HALT ? 'H' :
5451 arg_action == ACTION_POWEROFF ? 'P' :
5452 arg_action == ACTION_KEXEC ? 'K' :
5459 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5461 char date[FORMAT_TIMESTAMP_MAX];
5463 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5464 format_timestamp(date, sizeof(date), arg_when));
5469 if (!arg_dry && !arg_force)
5470 return start_with_fallback(bus);
5473 if (sd_booted() > 0)
5474 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5476 r = utmp_put_shutdown();
5478 log_warning("Failed to write utmp record: %s", strerror(-r));
5485 halt_now(arg_action);
5486 /* We should never reach this. */
5490 static int runlevel_main(void) {
5491 int r, runlevel, previous;
5493 r = utmp_get_runlevel(&runlevel, &previous);
5500 previous <= 0 ? 'N' : previous,
5501 runlevel <= 0 ? 'N' : runlevel);
5506 int main(int argc, char*argv[]) {
5507 int r, retval = EXIT_FAILURE;
5508 DBusConnection *bus = NULL;
5509 DBusError _cleanup_dbus_error_free_ error;
5511 dbus_error_init(&error);
5513 setlocale(LC_ALL, "");
5514 log_parse_environment();
5517 r = parse_argv(argc, argv);
5521 retval = EXIT_SUCCESS;
5525 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5526 * let's shortcut this */
5527 if (arg_action == ACTION_RUNLEVEL) {
5528 r = runlevel_main();
5529 retval = r < 0 ? EXIT_FAILURE : r;
5533 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5534 log_info("Running in chroot, ignoring request.");
5540 if (arg_transport == TRANSPORT_NORMAL)
5541 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5542 else if (arg_transport == TRANSPORT_POLKIT) {
5543 bus_connect_system_polkit(&bus, &error);
5544 private_bus = false;
5545 } else if (arg_transport == TRANSPORT_SSH) {
5546 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5547 private_bus = false;
5549 assert_not_reached("Uh, invalid transport...");
5552 switch (arg_action) {
5554 case ACTION_SYSTEMCTL:
5555 r = systemctl_main(bus, argc, argv, &error);
5559 case ACTION_POWEROFF:
5565 case ACTION_RUNLEVEL2:
5566 case ACTION_RUNLEVEL3:
5567 case ACTION_RUNLEVEL4:
5568 case ACTION_RUNLEVEL5:
5570 case ACTION_EMERGENCY:
5571 case ACTION_DEFAULT:
5572 r = start_with_fallback(bus);
5577 r = reload_with_fallback(bus);
5580 case ACTION_CANCEL_SHUTDOWN: {
5584 m = strv_join(arg_wall, " ");
5586 retval = EXIT_FAILURE;
5590 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
5592 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
5597 case ACTION_INVALID:
5598 case ACTION_RUNLEVEL:
5600 assert_not_reached("Unknown action");
5603 retval = r < 0 ? EXIT_FAILURE : r;
5607 dbus_connection_flush(bus);
5608 dbus_connection_close(bus);
5609 dbus_connection_unref(bus);
5614 strv_free(arg_property);
5617 ask_password_agent_close();
5618 polkit_agent_close();