1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/reboot.h>
28 #include <sys/ioctl.h>
32 #include <sys/socket.h>
35 #include <sys/prctl.h>
37 #include <dbus/dbus.h>
43 #include "utmp-wtmp.h"
47 #include "dbus-common.h"
48 #include "cgroup-show.h"
49 #include "cgroup-util.h"
51 #include "path-lookup.h"
52 #include "conf-parser.h"
53 #include "sd-daemon.h"
54 #include "shutdownd.h"
55 #include "exit-status.h"
56 #include "bus-errors.h"
58 #include "unit-name.h"
60 static const char *arg_type = NULL;
61 static char **arg_property = NULL;
62 static bool arg_all = false;
63 static const char *arg_job_mode = "replace";
64 static bool arg_user = false;
65 static bool arg_global = false;
66 static bool arg_immediate = false;
67 static bool arg_no_block = false;
68 static bool arg_no_pager = false;
69 static bool arg_no_wtmp = false;
70 static bool arg_no_sync = false;
71 static bool arg_no_wall = false;
72 static bool arg_no_reload = false;
73 static bool arg_dry = false;
74 static bool arg_quiet = false;
75 static bool arg_full = false;
76 static bool arg_force = false;
77 static bool arg_defaults = false;
78 static bool arg_ask_password = false;
79 static bool arg_failed = false;
80 static char **arg_wall = NULL;
81 static const char *arg_kill_who = NULL;
82 static const char *arg_kill_mode = NULL;
83 static int arg_signal = SIGTERM;
84 static usec_t arg_when = 0;
103 ACTION_CANCEL_SHUTDOWN,
105 } arg_action = ACTION_SYSTEMCTL;
111 static enum transport {
115 } arg_transport = TRANSPORT_NORMAL;
116 static const char *arg_host = NULL;
118 static bool private_bus = false;
120 static pid_t pager_pid = 0;
121 static pid_t agent_pid = 0;
123 static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
124 static void pager_open(void);
126 static bool on_tty(void) {
129 /* Note that this is invoked relatively early, before we start
130 * the pager. That means the value we return reflects whether
131 * we originally were started on a tty, not if we currently
132 * are. But this is intended, since we want colour and so on
133 * when run in our own pager. */
135 if (_unlikely_(t < 0))
136 t = isatty(STDOUT_FILENO) > 0;
141 static void spawn_ask_password_agent(void) {
147 /* We check STDIN here, not STDOUT, since this is about input,
149 if (!isatty(STDIN_FILENO))
152 if (!arg_ask_password)
160 /* Spawns a temporary TTY agent, making sure it goes away when
163 if ((agent_pid = fork()) < 0)
166 if (agent_pid == 0) {
170 bool stdout_is_tty, stderr_is_tty;
172 /* Make sure the agent goes away when the parent dies */
173 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
176 /* Check whether our parent died before we were able
177 * to set the death signal */
178 if (getppid() != parent)
181 /* Don't leak fds to the agent */
182 close_all_fds(NULL, 0);
184 stdout_is_tty = isatty(STDOUT_FILENO);
185 stderr_is_tty = isatty(STDERR_FILENO);
187 if (!stdout_is_tty || !stderr_is_tty) {
188 /* Detach from stdout/stderr. and reopen
189 * /dev/tty for them. This is important to
190 * ensure that when systemctl is started via
191 * popen() or a similar call that expects to
192 * read EOF we actually do generate EOF and
193 * not delay this indefinitely by because we
194 * keep an unused copy of stdin around. */
195 if ((fd = open("/dev/tty", O_WRONLY)) < 0) {
196 log_error("Failed to open /dev/tty: %m");
201 dup2(fd, STDOUT_FILENO);
204 dup2(fd, STDERR_FILENO);
210 execl(SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
212 log_error("Unable to execute agent: %m");
217 static const char *ansi_highlight(bool b) {
222 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
225 static const char *ansi_highlight_green(bool b) {
230 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
233 static bool error_is_no_service(const DBusError *error) {
236 if (!dbus_error_is_set(error))
239 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
242 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
245 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
248 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
251 if (!dbus_error_is_set(error))
254 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
255 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
256 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
257 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
258 return EXIT_NOPERMISSION;
260 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
261 return EXIT_NOTINSTALLED;
263 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
264 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
265 return EXIT_NOTIMPLEMENTED;
267 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
268 return EXIT_NOTCONFIGURED;
276 static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
281 if (dbus_message_iter_get_arg_type(iter) != type)
284 dbus_message_iter_get_basic(iter, data);
286 if (!dbus_message_iter_next(iter) != !next)
292 static void warn_wall(enum action action) {
293 static const char *table[_ACTION_MAX] = {
294 [ACTION_HALT] = "The system is going down for system halt NOW!",
295 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
296 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
297 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
298 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
299 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
308 if (!(p = strv_join(arg_wall, " "))) {
309 log_error("Failed to join strings.");
325 utmp_wall(table[action], NULL);
330 const char *description;
331 const char *load_state;
332 const char *active_state;
333 const char *sub_state;
334 const char *following;
335 const char *unit_path;
337 const char *job_type;
338 const char *job_path;
341 static int compare_unit_info(const void *a, const void *b) {
343 const struct unit_info *u = a, *v = b;
345 d1 = strrchr(u->id, '.');
346 d2 = strrchr(v->id, '.');
351 if ((r = strcasecmp(d1, d2)) != 0)
355 return strcasecmp(u->id, v->id);
358 static bool output_show_unit(const struct unit_info *u) {
362 return streq(u->active_state, "failed");
364 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
365 streq(dot+1, arg_type))) &&
366 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
369 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
370 unsigned active_len, sub_len, job_len, n_shown = 0;
371 const struct unit_info *u;
373 active_len = sizeof("ACTIVE")-1;
374 sub_len = sizeof("SUB")-1;
375 job_len = sizeof("JOB")-1;
377 for (u = unit_infos; u < unit_infos + c; u++) {
378 if (!output_show_unit(u))
381 active_len = MAX(active_len, strlen(u->active_state));
382 sub_len = MAX(sub_len, strlen(u->sub_state));
384 job_len = MAX(job_len, strlen(u->job_type));
388 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
389 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
390 if (columns() >= 80+12 || arg_full || !arg_no_pager)
391 printf(" %s\n", "DESCRIPTION");
396 for (u = unit_infos; u < unit_infos + c; u++) {
399 const char *on_loaded, *off_loaded;
400 const char *on_active, *off_active;
402 if (!output_show_unit(u))
407 if (!streq(u->load_state, "loaded") &&
408 !streq(u->load_state, "banned")) {
409 on_loaded = ansi_highlight(true);
410 off_loaded = ansi_highlight(false);
412 on_loaded = off_loaded = "";
414 if (streq(u->active_state, "failed")) {
415 on_active = ansi_highlight(true);
416 off_active = ansi_highlight(false);
418 on_active = off_active = "";
420 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
422 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
424 on_loaded, u->load_state, off_loaded,
425 on_active, active_len, u->active_state,
426 sub_len, u->sub_state, off_active,
431 a -= strlen(on_loaded) + strlen(off_loaded);
432 a -= strlen(on_active) + strlen(off_active);
435 printf(" %-*s", job_len, u->job_type);
439 if (a + b + 1 < columns()) {
441 printf(" %-*s", job_len, "");
443 if (arg_full || !arg_no_pager)
444 printf(" %s", u->description);
446 printf(" %.*s", columns() - a - b - 1, u->description);
453 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
454 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
455 "SUB = The low-level unit activation state, values depend on unit type.\n"
456 "JOB = Pending job for the unit.\n");
459 printf("\n%u units listed.\n", n_shown);
461 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
465 static int list_units(DBusConnection *bus, char **args, unsigned n) {
466 DBusMessage *m = NULL, *reply = NULL;
469 DBusMessageIter iter, sub, sub2;
470 unsigned c = 0, n_units = 0;
471 struct unit_info *unit_infos = NULL;
473 dbus_error_init(&error);
479 if (!(m = dbus_message_new_method_call(
480 "org.freedesktop.systemd1",
481 "/org/freedesktop/systemd1",
482 "org.freedesktop.systemd1.Manager",
484 log_error("Could not allocate message.");
488 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
489 log_error("Failed to issue method call: %s", bus_error_message(&error));
494 if (!dbus_message_iter_init(reply, &iter) ||
495 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
496 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
497 log_error("Failed to parse reply.");
502 dbus_message_iter_recurse(&iter, &sub);
504 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
507 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
508 log_error("Failed to parse reply.");
516 n_units = MAX(2*c, 16);
517 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
520 log_error("Failed to allocate unit array.");
530 dbus_message_iter_recurse(&sub, &sub2);
532 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
533 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
534 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
535 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
536 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
537 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
538 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
539 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
540 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
541 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
542 log_error("Failed to parse reply.");
547 dbus_message_iter_next(&sub);
552 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
553 output_units_list(unit_infos, c);
560 dbus_message_unref(m);
563 dbus_message_unref(reply);
567 dbus_error_free(&error);
572 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
573 static const char * const colors[] = {
574 "Requires", "[color=\"black\"]",
575 "RequiresOverridable", "[color=\"black\"]",
576 "Requisite", "[color=\"darkblue\"]",
577 "RequisiteOverridable", "[color=\"darkblue\"]",
578 "Wants", "[color=\"darkgrey\"]",
579 "Conflicts", "[color=\"red\"]",
580 "ConflictedBy", "[color=\"red\"]",
581 "After", "[color=\"green\"]"
584 const char *c = NULL;
591 for (i = 0; i < ELEMENTSOF(colors); i += 2)
592 if (streq(colors[i], prop)) {
600 if (arg_dot != DOT_ALL)
601 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
604 switch (dbus_message_iter_get_arg_type(iter)) {
606 case DBUS_TYPE_ARRAY:
608 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
611 dbus_message_iter_recurse(iter, &sub);
613 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
616 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
617 dbus_message_iter_get_basic(&sub, &s);
618 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
620 dbus_message_iter_next(&sub);
630 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
631 DBusMessage *m = NULL, *reply = NULL;
632 const char *interface = "org.freedesktop.systemd1.Unit";
635 DBusMessageIter iter, sub, sub2, sub3;
640 dbus_error_init(&error);
642 if (!(m = dbus_message_new_method_call(
643 "org.freedesktop.systemd1",
645 "org.freedesktop.DBus.Properties",
647 log_error("Could not allocate message.");
652 if (!dbus_message_append_args(m,
653 DBUS_TYPE_STRING, &interface,
654 DBUS_TYPE_INVALID)) {
655 log_error("Could not append arguments to message.");
660 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
661 log_error("Failed to issue method call: %s", bus_error_message(&error));
666 if (!dbus_message_iter_init(reply, &iter) ||
667 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
668 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
669 log_error("Failed to parse reply.");
674 dbus_message_iter_recurse(&iter, &sub);
676 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
679 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
680 log_error("Failed to parse reply.");
685 dbus_message_iter_recurse(&sub, &sub2);
687 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
688 log_error("Failed to parse reply.");
693 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
694 log_error("Failed to parse reply.");
699 dbus_message_iter_recurse(&sub2, &sub3);
701 if (dot_one_property(name, prop, &sub3)) {
702 log_error("Failed to parse reply.");
707 dbus_message_iter_next(&sub);
714 dbus_message_unref(m);
717 dbus_message_unref(reply);
719 dbus_error_free(&error);
724 static int dot(DBusConnection *bus, char **args, unsigned n) {
725 DBusMessage *m = NULL, *reply = NULL;
728 DBusMessageIter iter, sub, sub2;
730 dbus_error_init(&error);
734 if (!(m = dbus_message_new_method_call(
735 "org.freedesktop.systemd1",
736 "/org/freedesktop/systemd1",
737 "org.freedesktop.systemd1.Manager",
739 log_error("Could not allocate message.");
743 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
744 log_error("Failed to issue method call: %s", bus_error_message(&error));
749 if (!dbus_message_iter_init(reply, &iter) ||
750 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
751 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
752 log_error("Failed to parse reply.");
757 printf("digraph systemd {\n");
759 dbus_message_iter_recurse(&iter, &sub);
760 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
761 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
763 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
764 log_error("Failed to parse reply.");
769 dbus_message_iter_recurse(&sub, &sub2);
771 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
772 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
773 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
774 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
775 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
776 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
777 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
778 log_error("Failed to parse reply.");
783 if ((r = dot_one(bus, id, unit_path)) < 0)
786 /* printf("\t\"%s\";\n", id); */
787 dbus_message_iter_next(&sub);
792 log_info(" Color legend: black = Requires\n"
793 " dark blue = Requisite\n"
794 " dark grey = Wants\n"
798 if (isatty(fileno(stdout)))
799 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
800 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
806 dbus_message_unref(m);
809 dbus_message_unref(reply);
811 dbus_error_free(&error);
816 static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
817 DBusMessage *m = NULL, *reply = NULL;
820 DBusMessageIter iter, sub, sub2;
823 dbus_error_init(&error);
829 if (!(m = dbus_message_new_method_call(
830 "org.freedesktop.systemd1",
831 "/org/freedesktop/systemd1",
832 "org.freedesktop.systemd1.Manager",
834 log_error("Could not allocate message.");
838 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
839 log_error("Failed to issue method call: %s", bus_error_message(&error));
844 if (!dbus_message_iter_init(reply, &iter) ||
845 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
846 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
847 log_error("Failed to parse reply.");
852 dbus_message_iter_recurse(&iter, &sub);
854 if (isatty(STDOUT_FILENO))
855 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
857 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
858 const char *name, *type, *state, *job_path, *unit_path;
862 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
863 log_error("Failed to parse reply.");
868 dbus_message_iter_recurse(&sub, &sub2);
870 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
871 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
872 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
873 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
874 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
875 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
876 log_error("Failed to parse reply.");
881 e = arg_full ? NULL : ellipsize(name, 25, 33);
882 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
887 dbus_message_iter_next(&sub);
890 if (isatty(STDOUT_FILENO))
891 printf("\n%u jobs listed.\n", k);
897 dbus_message_unref(m);
900 dbus_message_unref(reply);
902 dbus_error_free(&error);
907 static int load_unit(DBusConnection *bus, char **args, unsigned n) {
908 DBusMessage *m = NULL, *reply = NULL;
913 dbus_error_init(&error);
918 for (i = 1; i < n; i++) {
920 if (!(m = dbus_message_new_method_call(
921 "org.freedesktop.systemd1",
922 "/org/freedesktop/systemd1",
923 "org.freedesktop.systemd1.Manager",
925 log_error("Could not allocate message.");
930 if (!dbus_message_append_args(m,
931 DBUS_TYPE_STRING, &args[i],
932 DBUS_TYPE_INVALID)) {
933 log_error("Could not append arguments to message.");
938 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
939 log_error("Failed to issue method call: %s", bus_error_message(&error));
944 dbus_message_unref(m);
945 dbus_message_unref(reply);
954 dbus_message_unref(m);
957 dbus_message_unref(reply);
959 dbus_error_free(&error);
964 static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
965 DBusMessage *m = NULL, *reply = NULL;
970 dbus_error_init(&error);
976 return daemon_reload(bus, args, n);
978 for (i = 1; i < n; i++) {
982 if (!(m = dbus_message_new_method_call(
983 "org.freedesktop.systemd1",
984 "/org/freedesktop/systemd1",
985 "org.freedesktop.systemd1.Manager",
987 log_error("Could not allocate message.");
992 if ((r = safe_atou(args[i], &id)) < 0) {
993 log_error("Failed to parse job id: %s", strerror(-r));
997 assert_cc(sizeof(uint32_t) == sizeof(id));
998 if (!dbus_message_append_args(m,
999 DBUS_TYPE_UINT32, &id,
1000 DBUS_TYPE_INVALID)) {
1001 log_error("Could not append arguments to message.");
1006 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1007 log_error("Failed to issue method call: %s", bus_error_message(&error));
1012 if (!dbus_message_get_args(reply, &error,
1013 DBUS_TYPE_OBJECT_PATH, &path,
1014 DBUS_TYPE_INVALID)) {
1015 log_error("Failed to parse reply: %s", bus_error_message(&error));
1020 dbus_message_unref(m);
1021 if (!(m = dbus_message_new_method_call(
1022 "org.freedesktop.systemd1",
1024 "org.freedesktop.systemd1.Job",
1026 log_error("Could not allocate message.");
1031 dbus_message_unref(reply);
1032 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1033 log_error("Failed to issue method call: %s", bus_error_message(&error));
1038 dbus_message_unref(m);
1039 dbus_message_unref(reply);
1047 dbus_message_unref(m);
1050 dbus_message_unref(reply);
1052 dbus_error_free(&error);
1057 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1058 DBusMessage *m = NULL, *reply = NULL;
1059 dbus_bool_t b = FALSE;
1060 DBusMessageIter iter, sub;
1062 *interface = "org.freedesktop.systemd1.Unit",
1063 *property = "NeedDaemonReload",
1066 /* We ignore all errors here, since this is used to show a warning only */
1068 if (!(m = dbus_message_new_method_call(
1069 "org.freedesktop.systemd1",
1070 "/org/freedesktop/systemd1",
1071 "org.freedesktop.systemd1.Manager",
1075 if (!dbus_message_append_args(m,
1076 DBUS_TYPE_STRING, &unit,
1080 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1083 if (!dbus_message_get_args(reply, NULL,
1084 DBUS_TYPE_OBJECT_PATH, &path,
1088 dbus_message_unref(m);
1089 if (!(m = dbus_message_new_method_call(
1090 "org.freedesktop.systemd1",
1092 "org.freedesktop.DBus.Properties",
1096 if (!dbus_message_append_args(m,
1097 DBUS_TYPE_STRING, &interface,
1098 DBUS_TYPE_STRING, &property,
1099 DBUS_TYPE_INVALID)) {
1103 dbus_message_unref(reply);
1104 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1107 if (!dbus_message_iter_init(reply, &iter) ||
1108 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1111 dbus_message_iter_recurse(&iter, &sub);
1113 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1116 dbus_message_iter_get_basic(&sub, &b);
1120 dbus_message_unref(m);
1123 dbus_message_unref(reply);
1128 typedef struct WaitData {
1133 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1141 dbus_error_init(&error);
1143 log_debug("Got D-Bus request: %s.%s() on %s",
1144 dbus_message_get_interface(message),
1145 dbus_message_get_member(message),
1146 dbus_message_get_path(message));
1148 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1149 log_error("Warning! D-Bus connection terminated.");
1150 dbus_connection_close(connection);
1152 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1154 const char *path, *result;
1155 dbus_bool_t success = true;
1157 if (dbus_message_get_args(message, &error,
1158 DBUS_TYPE_UINT32, &id,
1159 DBUS_TYPE_OBJECT_PATH, &path,
1160 DBUS_TYPE_STRING, &result,
1161 DBUS_TYPE_INVALID)) {
1164 if ((p = set_remove(d->set, (char*) path)))
1168 d->result = strdup(result);
1173 dbus_error_free(&error);
1175 if (dbus_message_get_args(message, &error,
1176 DBUS_TYPE_UINT32, &id,
1177 DBUS_TYPE_OBJECT_PATH, &path,
1178 DBUS_TYPE_BOOLEAN, &success,
1179 DBUS_TYPE_INVALID)) {
1182 /* Compatibility with older systemd versions <
1183 * 19 during upgrades. This should be dropped
1186 if ((p = set_remove(d->set, (char*) path)))
1190 d->result = strdup("failed");
1196 log_error("Failed to parse message: %s", bus_error_message(&error));
1200 dbus_error_free(&error);
1201 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1204 static int enable_wait_for_jobs(DBusConnection *bus) {
1212 dbus_error_init(&error);
1213 dbus_bus_add_match(bus,
1215 "sender='org.freedesktop.systemd1',"
1216 "interface='org.freedesktop.systemd1.Manager',"
1217 "member='JobRemoved',"
1218 "path='/org/freedesktop/systemd1'",
1221 if (dbus_error_is_set(&error)) {
1222 log_error("Failed to add match: %s", bus_error_message(&error));
1223 dbus_error_free(&error);
1227 /* This is slightly dirty, since we don't undo the match registrations. */
1231 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1241 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1242 log_error("Failed to add filter.");
1247 while (!set_isempty(s) &&
1248 dbus_connection_read_write_dispatch(bus, -1))
1251 if (!arg_quiet && d.result) {
1252 if (streq(d.result, "timeout"))
1253 log_error("Job timed out.");
1254 else if (streq(d.result, "canceled"))
1255 log_error("Job canceled.");
1256 else if (streq(d.result, "dependency"))
1257 log_error("A dependency job failed. See system logs for details.");
1258 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1259 log_error("Job failed. See system logs and 'systemctl status' for details.");
1262 if (streq_ptr(d.result, "timeout"))
1264 else if (streq_ptr(d.result, "canceled"))
1266 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1274 /* This is slightly dirty, since we don't undo the filter registration. */
1279 static int start_unit_one(
1280 DBusConnection *bus,
1287 DBusMessage *m = NULL, *reply = NULL;
1296 assert(arg_no_block || s);
1298 if (!(m = dbus_message_new_method_call(
1299 "org.freedesktop.systemd1",
1300 "/org/freedesktop/systemd1",
1301 "org.freedesktop.systemd1.Manager",
1303 log_error("Could not allocate message.");
1308 if (!dbus_message_append_args(m,
1309 DBUS_TYPE_STRING, &name,
1310 DBUS_TYPE_STRING, &mode,
1311 DBUS_TYPE_INVALID)) {
1312 log_error("Could not append arguments to message.");
1317 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
1319 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1320 /* There's always a fallback possible for
1321 * legacy actions. */
1326 log_error("Failed to issue method call: %s", bus_error_message(error));
1331 if (!dbus_message_get_args(reply, error,
1332 DBUS_TYPE_OBJECT_PATH, &path,
1333 DBUS_TYPE_INVALID)) {
1334 log_error("Failed to parse reply: %s", bus_error_message(error));
1339 if (need_daemon_reload(bus, name))
1340 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1341 arg_user ? "--user" : "--system");
1343 if (!arg_no_block) {
1346 if (!(p = strdup(path))) {
1347 log_error("Failed to duplicate path.");
1352 if ((r = set_put(s, p)) < 0) {
1354 log_error("Failed to add path to set.");
1363 dbus_message_unref(m);
1366 dbus_message_unref(reply);
1371 static enum action verb_to_action(const char *verb) {
1372 if (streq(verb, "halt"))
1374 else if (streq(verb, "poweroff"))
1375 return ACTION_POWEROFF;
1376 else if (streq(verb, "reboot"))
1377 return ACTION_REBOOT;
1378 else if (streq(verb, "kexec"))
1379 return ACTION_KEXEC;
1380 else if (streq(verb, "rescue"))
1381 return ACTION_RESCUE;
1382 else if (streq(verb, "emergency"))
1383 return ACTION_EMERGENCY;
1384 else if (streq(verb, "default"))
1385 return ACTION_DEFAULT;
1386 else if (streq(verb, "exit"))
1389 return ACTION_INVALID;
1392 static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1394 static const char * const table[_ACTION_MAX] = {
1395 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1396 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1397 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1398 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1399 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1400 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1401 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1402 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1403 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1404 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1405 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1406 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
1411 const char *method, *mode, *one_name;
1415 dbus_error_init(&error);
1419 spawn_ask_password_agent();
1421 if (arg_action == ACTION_SYSTEMCTL) {
1423 streq(args[0], "stop") ||
1424 streq(args[0], "condstop") ? "StopUnit" :
1425 streq(args[0], "reload") ? "ReloadUnit" :
1426 streq(args[0], "restart") ? "RestartUnit" :
1428 streq(args[0], "try-restart") ||
1429 streq(args[0], "condrestart") ? "TryRestartUnit" :
1431 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1433 streq(args[0], "reload-or-try-restart") ||
1434 streq(args[0], "condreload") ||
1436 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1440 (streq(args[0], "isolate") ||
1441 streq(args[0], "rescue") ||
1442 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1444 one_name = table[verb_to_action(args[0])];
1447 assert(arg_action < ELEMENTSOF(table));
1448 assert(table[arg_action]);
1450 method = "StartUnit";
1452 mode = (arg_action == ACTION_EMERGENCY ||
1453 arg_action == ACTION_RESCUE ||
1454 arg_action == ACTION_RUNLEVEL2 ||
1455 arg_action == ACTION_RUNLEVEL3 ||
1456 arg_action == ACTION_RUNLEVEL4 ||
1457 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1459 one_name = table[arg_action];
1462 if (!arg_no_block) {
1463 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1464 log_error("Could not watch jobs: %s", strerror(-ret));
1468 if (!(s = set_new(string_hash_func, string_compare_func))) {
1469 log_error("Failed to allocate set.");
1476 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1479 for (i = 1; i < n; i++)
1480 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
1481 ret = translate_bus_error_to_exit_status(r, &error);
1482 dbus_error_free(&error);
1487 if ((r = wait_for_jobs(bus, s)) < 0) {
1496 dbus_error_free(&error);
1501 static int start_special(DBusConnection *bus, char **args, unsigned n) {
1508 (streq(args[0], "halt") ||
1509 streq(args[0], "poweroff") ||
1510 streq(args[0], "reboot") ||
1511 streq(args[0], "kexec") ||
1512 streq(args[0], "exit")))
1513 return daemon_reload(bus, args, n);
1515 r = start_unit(bus, args, n);
1518 warn_wall(verb_to_action(args[0]));
1523 static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1524 DBusMessage *m = NULL, *reply = NULL;
1526 *interface = "org.freedesktop.systemd1.Unit",
1527 *property = "ActiveState";
1528 int r = 3; /* According to LSB: "program is not running" */
1535 dbus_error_init(&error);
1537 for (i = 1; i < n; i++) {
1538 const char *path = NULL;
1540 DBusMessageIter iter, sub;
1542 if (!(m = dbus_message_new_method_call(
1543 "org.freedesktop.systemd1",
1544 "/org/freedesktop/systemd1",
1545 "org.freedesktop.systemd1.Manager",
1547 log_error("Could not allocate message.");
1552 if (!dbus_message_append_args(m,
1553 DBUS_TYPE_STRING, &args[i],
1554 DBUS_TYPE_INVALID)) {
1555 log_error("Could not append arguments to message.");
1560 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1562 /* Hmm, cannot figure out anything about this unit... */
1566 dbus_error_free(&error);
1567 dbus_message_unref(m);
1571 if (!dbus_message_get_args(reply, &error,
1572 DBUS_TYPE_OBJECT_PATH, &path,
1573 DBUS_TYPE_INVALID)) {
1574 log_error("Failed to parse reply: %s", bus_error_message(&error));
1579 dbus_message_unref(m);
1580 if (!(m = dbus_message_new_method_call(
1581 "org.freedesktop.systemd1",
1583 "org.freedesktop.DBus.Properties",
1585 log_error("Could not allocate message.");
1590 if (!dbus_message_append_args(m,
1591 DBUS_TYPE_STRING, &interface,
1592 DBUS_TYPE_STRING, &property,
1593 DBUS_TYPE_INVALID)) {
1594 log_error("Could not append arguments to message.");
1599 dbus_message_unref(reply);
1600 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1601 log_error("Failed to issue method call: %s", bus_error_message(&error));
1606 if (!dbus_message_iter_init(reply, &iter) ||
1607 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1608 log_error("Failed to parse reply.");
1613 dbus_message_iter_recurse(&iter, &sub);
1615 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1616 log_error("Failed to parse reply.");
1621 dbus_message_iter_get_basic(&sub, &state);
1626 if (streq(state, "active") || streq(state, "reloading"))
1629 dbus_message_unref(m);
1630 dbus_message_unref(reply);
1636 dbus_message_unref(m);
1639 dbus_message_unref(reply);
1641 dbus_error_free(&error);
1646 static int kill_unit(DBusConnection *bus, char **args, unsigned n) {
1647 DBusMessage *m = NULL, *reply = NULL;
1655 dbus_error_init(&error);
1658 arg_kill_who = "all";
1661 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
1663 for (i = 1; i < n; i++) {
1665 if (!(m = dbus_message_new_method_call(
1666 "org.freedesktop.systemd1",
1667 "/org/freedesktop/systemd1",
1668 "org.freedesktop.systemd1.Manager",
1670 log_error("Could not allocate message.");
1675 if (!dbus_message_append_args(m,
1676 DBUS_TYPE_STRING, &args[i],
1677 DBUS_TYPE_STRING, &arg_kill_who,
1678 DBUS_TYPE_STRING, &arg_kill_mode,
1679 DBUS_TYPE_INT32, &arg_signal,
1680 DBUS_TYPE_INVALID)) {
1681 log_error("Could not append arguments to message.");
1686 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1687 log_error("Failed to issue method call: %s", bus_error_message(&error));
1688 dbus_error_free(&error);
1692 dbus_message_unref(m);
1695 dbus_message_unref(reply);
1701 dbus_message_unref(m);
1704 dbus_message_unref(reply);
1706 dbus_error_free(&error);
1711 typedef struct ExecStatusInfo {
1719 usec_t start_timestamp;
1720 usec_t exit_timestamp;
1725 LIST_FIELDS(struct ExecStatusInfo, exec);
1728 static void exec_status_info_free(ExecStatusInfo *i) {
1737 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1738 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
1739 DBusMessageIter sub2, sub3;
1743 int32_t code, status;
1749 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1752 dbus_message_iter_recurse(sub, &sub2);
1754 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1757 if (!(i->path = strdup(path)))
1760 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1761 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1765 dbus_message_iter_recurse(&sub2, &sub3);
1766 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1767 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1768 dbus_message_iter_next(&sub3);
1773 if (!(i->argv = new0(char*, n+1)))
1777 dbus_message_iter_recurse(&sub2, &sub3);
1778 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1781 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1782 dbus_message_iter_get_basic(&sub3, &s);
1783 dbus_message_iter_next(&sub3);
1785 if (!(i->argv[n++] = strdup(s)))
1789 if (!dbus_message_iter_next(&sub2) ||
1790 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
1791 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1792 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
1793 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1794 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
1795 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1796 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1797 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1801 i->start_timestamp = (usec_t) start_timestamp;
1802 i->exit_timestamp = (usec_t) exit_timestamp;
1803 i->pid = (pid_t) pid;
1810 typedef struct UnitStatusInfo {
1812 const char *load_state;
1813 const char *active_state;
1814 const char *sub_state;
1816 const char *description;
1817 const char *following;
1820 const char *default_control_group;
1822 usec_t inactive_exit_timestamp;
1823 usec_t active_enter_timestamp;
1824 usec_t active_exit_timestamp;
1825 usec_t inactive_enter_timestamp;
1827 bool need_daemon_reload;
1832 const char *status_text;
1834 #ifdef HAVE_SYSV_COMPAT
1838 usec_t start_timestamp;
1839 usec_t exit_timestamp;
1841 int exit_code, exit_status;
1843 usec_t condition_timestamp;
1844 bool condition_result;
1847 unsigned n_accepted;
1848 unsigned n_connections;
1852 const char *sysfs_path;
1854 /* Mount, Automount */
1860 LIST_HEAD(ExecStatusInfo, exec);
1863 static void print_status_info(UnitStatusInfo *i) {
1865 const char *on, *off, *ss;
1867 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1868 char since2[FORMAT_TIMESTAMP_MAX], *s2;
1872 /* This shows pretty information about a unit. See
1873 * print_property() for a low-level property printer */
1875 printf("%s", strna(i->id));
1877 if (i->description && !streq_ptr(i->id, i->description))
1878 printf(" - %s", i->description);
1883 printf("\t Follow: unit currently follows state of %s\n", i->following);
1885 if (streq_ptr(i->load_state, "failed") ||
1886 streq_ptr(i->load_state, "banned")) {
1887 on = ansi_highlight(true);
1888 off = ansi_highlight(false);
1893 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
1895 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
1897 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1899 if (streq_ptr(i->active_state, "failed")) {
1900 on = ansi_highlight(true);
1901 off = ansi_highlight(false);
1902 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1903 on = ansi_highlight_green(true);
1904 off = ansi_highlight_green(false);
1909 printf("\t Active: %s%s (%s)%s",
1911 strna(i->active_state),
1915 printf("\t Active: %s%s%s",
1917 strna(i->active_state),
1920 timestamp = (streq_ptr(i->active_state, "active") ||
1921 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1922 (streq_ptr(i->active_state, "inactive") ||
1923 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
1924 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1925 i->active_exit_timestamp;
1927 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1928 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1931 printf(" since %s; %s\n", s2, s1);
1933 printf(" since %s\n", s2);
1937 if (!i->condition_result && i->condition_timestamp > 0) {
1938 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
1939 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
1942 printf("\t start condition failed at %s; %s\n", s2, s1);
1944 printf("\t start condition failed at %s\n", s2);
1948 printf("\t Device: %s\n", i->sysfs_path);
1950 printf("\t Where: %s\n", i->where);
1952 printf("\t What: %s\n", i->what);
1955 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1957 LIST_FOREACH(exec, p, i->exec) {
1961 /* Only show exited processes here */
1965 t = strv_join(p->argv, " ");
1966 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
1969 #ifdef HAVE_SYSV_COMPAT
1971 good = is_clean_exit_lsb(p->code, p->status);
1974 good = is_clean_exit(p->code, p->status);
1977 on = ansi_highlight(true);
1978 off = ansi_highlight(false);
1982 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
1984 if (p->code == CLD_EXITED) {
1987 printf("status=%i", p->status);
1989 #ifdef HAVE_SYSV_COMPAT
1990 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1992 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1997 printf("signal=%s", signal_to_string(p->status));
1999 printf(")%s\n", off);
2003 if (i->main_pid == p->pid &&
2004 i->start_timestamp == p->start_timestamp &&
2005 i->exit_timestamp == p->start_timestamp)
2006 /* Let's not show this twice */
2009 if (p->pid == i->control_pid)
2013 if (i->main_pid > 0 || i->control_pid > 0) {
2016 if (i->main_pid > 0) {
2017 printf("Main PID: %u", (unsigned) i->main_pid);
2021 get_process_name(i->main_pid, &t);
2026 } else if (i->exit_code > 0) {
2027 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2029 if (i->exit_code == CLD_EXITED) {
2032 printf("status=%i", i->exit_status);
2034 #ifdef HAVE_SYSV_COMPAT
2035 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
2037 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
2042 printf("signal=%s", signal_to_string(i->exit_status));
2047 if (i->main_pid > 0 && i->control_pid > 0)
2050 if (i->control_pid > 0) {
2053 printf(" Control: %u", (unsigned) i->control_pid);
2055 get_process_name(i->control_pid, &t);
2066 printf("\t Status: \"%s\"\n", i->status_text);
2068 if (i->default_control_group) {
2071 printf("\t CGroup: %s\n", i->default_control_group);
2073 if (arg_transport != TRANSPORT_SSH) {
2074 if ((c = columns()) > 18)
2079 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
2083 if (i->need_daemon_reload)
2084 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2085 ansi_highlight(true),
2086 ansi_highlight(false),
2087 arg_user ? "--user" : "--system");
2090 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2092 switch (dbus_message_iter_get_arg_type(iter)) {
2094 case DBUS_TYPE_STRING: {
2097 dbus_message_iter_get_basic(iter, &s);
2100 if (streq(name, "Id"))
2102 else if (streq(name, "LoadState"))
2104 else if (streq(name, "ActiveState"))
2105 i->active_state = s;
2106 else if (streq(name, "SubState"))
2108 else if (streq(name, "Description"))
2110 else if (streq(name, "FragmentPath"))
2112 #ifdef HAVE_SYSV_COMPAT
2113 else if (streq(name, "SysVPath")) {
2118 else if (streq(name, "DefaultControlGroup"))
2119 i->default_control_group = s;
2120 else if (streq(name, "StatusText"))
2122 else if (streq(name, "SysFSPath"))
2124 else if (streq(name, "Where"))
2126 else if (streq(name, "What"))
2128 else if (streq(name, "Following"))
2135 case DBUS_TYPE_BOOLEAN: {
2138 dbus_message_iter_get_basic(iter, &b);
2140 if (streq(name, "Accept"))
2142 else if (streq(name, "NeedDaemonReload"))
2143 i->need_daemon_reload = b;
2144 else if (streq(name, "ConditionResult"))
2145 i->condition_result = b;
2150 case DBUS_TYPE_UINT32: {
2153 dbus_message_iter_get_basic(iter, &u);
2155 if (streq(name, "MainPID")) {
2157 i->main_pid = (pid_t) u;
2160 } else if (streq(name, "ControlPID"))
2161 i->control_pid = (pid_t) u;
2162 else if (streq(name, "ExecMainPID")) {
2164 i->main_pid = (pid_t) u;
2165 } else if (streq(name, "NAccepted"))
2167 else if (streq(name, "NConnections"))
2168 i->n_connections = u;
2173 case DBUS_TYPE_INT32: {
2176 dbus_message_iter_get_basic(iter, &j);
2178 if (streq(name, "ExecMainCode"))
2179 i->exit_code = (int) j;
2180 else if (streq(name, "ExecMainStatus"))
2181 i->exit_status = (int) j;
2186 case DBUS_TYPE_UINT64: {
2189 dbus_message_iter_get_basic(iter, &u);
2191 if (streq(name, "ExecMainStartTimestamp"))
2192 i->start_timestamp = (usec_t) u;
2193 else if (streq(name, "ExecMainExitTimestamp"))
2194 i->exit_timestamp = (usec_t) u;
2195 else if (streq(name, "ActiveEnterTimestamp"))
2196 i->active_enter_timestamp = (usec_t) u;
2197 else if (streq(name, "InactiveEnterTimestamp"))
2198 i->inactive_enter_timestamp = (usec_t) u;
2199 else if (streq(name, "InactiveExitTimestamp"))
2200 i->inactive_exit_timestamp = (usec_t) u;
2201 else if (streq(name, "ActiveExitTimestamp"))
2202 i->active_exit_timestamp = (usec_t) u;
2203 else if (streq(name, "ConditionTimestamp"))
2204 i->condition_timestamp = (usec_t) u;
2209 case DBUS_TYPE_ARRAY: {
2211 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2212 startswith(name, "Exec")) {
2213 DBusMessageIter sub;
2215 dbus_message_iter_recurse(iter, &sub);
2216 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2217 ExecStatusInfo *info;
2220 if (!(info = new0(ExecStatusInfo, 1)))
2223 if (!(info->name = strdup(name))) {
2228 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2233 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2235 dbus_message_iter_next(&sub);
2246 static int print_property(const char *name, DBusMessageIter *iter) {
2250 /* This is a low-level property printer, see
2251 * print_status_info() for the nicer output */
2253 if (arg_property && !strv_find(arg_property, name))
2256 switch (dbus_message_iter_get_arg_type(iter)) {
2258 case DBUS_TYPE_STRING: {
2260 dbus_message_iter_get_basic(iter, &s);
2262 if (arg_all || s[0])
2263 printf("%s=%s\n", name, s);
2268 case DBUS_TYPE_BOOLEAN: {
2270 dbus_message_iter_get_basic(iter, &b);
2271 printf("%s=%s\n", name, yes_no(b));
2276 case DBUS_TYPE_UINT64: {
2278 dbus_message_iter_get_basic(iter, &u);
2280 /* Yes, heuristics! But we can change this check
2281 * should it turn out to not be sufficient */
2283 if (endswith(name, "Timestamp")) {
2284 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
2286 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
2287 printf("%s=%s\n", name, strempty(t));
2288 } else if (strstr(name, "USec")) {
2289 char timespan[FORMAT_TIMESPAN_MAX];
2291 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
2293 printf("%s=%llu\n", name, (unsigned long long) u);
2298 case DBUS_TYPE_UINT32: {
2300 dbus_message_iter_get_basic(iter, &u);
2302 if (strstr(name, "UMask") || strstr(name, "Mode"))
2303 printf("%s=%04o\n", name, u);
2305 printf("%s=%u\n", name, (unsigned) u);
2310 case DBUS_TYPE_INT32: {
2312 dbus_message_iter_get_basic(iter, &i);
2314 printf("%s=%i\n", name, (int) i);
2318 case DBUS_TYPE_DOUBLE: {
2320 dbus_message_iter_get_basic(iter, &d);
2322 printf("%s=%g\n", name, d);
2326 case DBUS_TYPE_STRUCT: {
2327 DBusMessageIter sub;
2328 dbus_message_iter_recurse(iter, &sub);
2330 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2333 dbus_message_iter_get_basic(&sub, &u);
2336 printf("%s=%u\n", name, (unsigned) u);
2338 printf("%s=\n", name);
2341 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2344 dbus_message_iter_get_basic(&sub, &s);
2346 if (arg_all || s[0])
2347 printf("%s=%s\n", name, s);
2355 case DBUS_TYPE_ARRAY:
2357 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2358 DBusMessageIter sub;
2361 dbus_message_iter_recurse(iter, &sub);
2363 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2364 printf("%s=", name);
2366 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2369 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2370 dbus_message_iter_get_basic(&sub, &s);
2371 printf("%s%s", space ? " " : "", s);
2374 dbus_message_iter_next(&sub);
2382 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2383 DBusMessageIter sub;
2385 dbus_message_iter_recurse(iter, &sub);
2387 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2388 printf("%s=", name);
2390 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2393 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2394 dbus_message_iter_get_basic(&sub, &u);
2397 dbus_message_iter_next(&sub);
2405 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2406 DBusMessageIter sub, sub2;
2408 dbus_message_iter_recurse(iter, &sub);
2409 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2413 dbus_message_iter_recurse(&sub, &sub2);
2415 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2416 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2417 printf("EnvironmentFile=%s (ignore=%s)\n", path, yes_no(ignore));
2419 dbus_message_iter_next(&sub);
2424 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2425 DBusMessageIter sub, sub2;
2427 dbus_message_iter_recurse(iter, &sub);
2428 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2429 const char *type, *path;
2431 dbus_message_iter_recurse(&sub, &sub2);
2433 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2434 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2435 printf("%s=%s\n", type, path);
2437 dbus_message_iter_next(&sub);
2442 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2443 DBusMessageIter sub, sub2;
2445 dbus_message_iter_recurse(iter, &sub);
2446 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2448 uint64_t value, next_elapse;
2450 dbus_message_iter_recurse(&sub, &sub2);
2452 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2453 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2454 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2455 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2457 printf("%s={ value=%s ; next_elapse=%s }\n",
2459 format_timespan(timespan1, sizeof(timespan1), value),
2460 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2463 dbus_message_iter_next(&sub);
2468 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2469 DBusMessageIter sub;
2471 dbus_message_iter_recurse(iter, &sub);
2472 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2473 ExecStatusInfo info;
2476 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2477 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2480 t = strv_join(info.argv, " ");
2482 printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2486 yes_no(info.ignore),
2487 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2488 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2489 (unsigned) info. pid,
2490 sigchld_code_to_string(info.code),
2492 info.code == CLD_EXITED ? "" : "/",
2493 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2499 strv_free(info.argv);
2501 dbus_message_iter_next(&sub);
2511 printf("%s=[unprintable]\n", name);
2516 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2517 DBusMessage *m = NULL, *reply = NULL;
2518 const char *interface = "";
2521 DBusMessageIter iter, sub, sub2, sub3;
2522 UnitStatusInfo info;
2530 dbus_error_init(&error);
2532 if (!(m = dbus_message_new_method_call(
2533 "org.freedesktop.systemd1",
2535 "org.freedesktop.DBus.Properties",
2537 log_error("Could not allocate message.");
2542 if (!dbus_message_append_args(m,
2543 DBUS_TYPE_STRING, &interface,
2544 DBUS_TYPE_INVALID)) {
2545 log_error("Could not append arguments to message.");
2550 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2551 log_error("Failed to issue method call: %s", bus_error_message(&error));
2556 if (!dbus_message_iter_init(reply, &iter) ||
2557 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2558 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2559 log_error("Failed to parse reply.");
2564 dbus_message_iter_recurse(&iter, &sub);
2571 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2574 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2575 log_error("Failed to parse reply.");
2580 dbus_message_iter_recurse(&sub, &sub2);
2582 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2583 log_error("Failed to parse reply.");
2588 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2589 log_error("Failed to parse reply.");
2594 dbus_message_iter_recurse(&sub2, &sub3);
2596 if (show_properties)
2597 r = print_property(name, &sub3);
2599 r = status_property(name, &sub3, &info);
2602 log_error("Failed to parse reply.");
2607 dbus_message_iter_next(&sub);
2612 if (!show_properties)
2613 print_status_info(&info);
2615 if (!streq_ptr(info.active_state, "active") &&
2616 !streq_ptr(info.active_state, "reloading") &&
2617 streq(verb, "status"))
2618 /* According to LSB: "program not running" */
2621 while ((p = info.exec)) {
2622 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2623 exec_status_info_free(p);
2628 dbus_message_unref(m);
2631 dbus_message_unref(reply);
2633 dbus_error_free(&error);
2638 static int show(DBusConnection *bus, char **args, unsigned n) {
2639 DBusMessage *m = NULL, *reply = NULL;
2643 bool show_properties, new_line = false;
2648 dbus_error_init(&error);
2650 show_properties = !streq(args[0], "status");
2652 if (show_properties)
2655 if (show_properties && n <= 1) {
2656 /* If not argument is specified inspect the manager
2659 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2663 for (i = 1; i < n; i++) {
2664 const char *path = NULL;
2667 if (safe_atou32(args[i], &id) < 0) {
2669 /* Interpret as unit name */
2671 if (!(m = dbus_message_new_method_call(
2672 "org.freedesktop.systemd1",
2673 "/org/freedesktop/systemd1",
2674 "org.freedesktop.systemd1.Manager",
2676 log_error("Could not allocate message.");
2681 if (!dbus_message_append_args(m,
2682 DBUS_TYPE_STRING, &args[i],
2683 DBUS_TYPE_INVALID)) {
2684 log_error("Could not append arguments to message.");
2689 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2691 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2692 log_error("Failed to issue method call: %s", bus_error_message(&error));
2697 dbus_error_free(&error);
2699 dbus_message_unref(m);
2700 if (!(m = dbus_message_new_method_call(
2701 "org.freedesktop.systemd1",
2702 "/org/freedesktop/systemd1",
2703 "org.freedesktop.systemd1.Manager",
2705 log_error("Could not allocate message.");
2710 if (!dbus_message_append_args(m,
2711 DBUS_TYPE_STRING, &args[i],
2712 DBUS_TYPE_INVALID)) {
2713 log_error("Could not append arguments to message.");
2718 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2719 log_error("Failed to issue method call: %s", bus_error_message(&error));
2721 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2722 ret = 4; /* According to LSB: "program or service status is unknown" */
2729 } else if (show_properties) {
2731 /* Interpret as job id */
2733 if (!(m = dbus_message_new_method_call(
2734 "org.freedesktop.systemd1",
2735 "/org/freedesktop/systemd1",
2736 "org.freedesktop.systemd1.Manager",
2738 log_error("Could not allocate message.");
2743 if (!dbus_message_append_args(m,
2744 DBUS_TYPE_UINT32, &id,
2745 DBUS_TYPE_INVALID)) {
2746 log_error("Could not append arguments to message.");
2751 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2752 log_error("Failed to issue method call: %s", bus_error_message(&error));
2758 /* Interpret as PID */
2760 if (!(m = dbus_message_new_method_call(
2761 "org.freedesktop.systemd1",
2762 "/org/freedesktop/systemd1",
2763 "org.freedesktop.systemd1.Manager",
2765 log_error("Could not allocate message.");
2770 if (!dbus_message_append_args(m,
2771 DBUS_TYPE_UINT32, &id,
2772 DBUS_TYPE_INVALID)) {
2773 log_error("Could not append arguments to message.");
2778 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2779 log_error("Failed to issue method call: %s", bus_error_message(&error));
2785 if (!dbus_message_get_args(reply, &error,
2786 DBUS_TYPE_OBJECT_PATH, &path,
2787 DBUS_TYPE_INVALID)) {
2788 log_error("Failed to parse reply: %s", bus_error_message(&error));
2793 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
2796 dbus_message_unref(m);
2797 dbus_message_unref(reply);
2803 dbus_message_unref(m);
2806 dbus_message_unref(reply);
2808 dbus_error_free(&error);
2813 static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2815 DBusMessage *m = NULL, *reply = NULL;
2820 dbus_error_init(&error);
2822 log_debug("Got D-Bus request: %s.%s() on %s",
2823 dbus_message_get_interface(message),
2824 dbus_message_get_member(message),
2825 dbus_message_get_path(message));
2827 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2828 log_error("Warning! D-Bus connection terminated.");
2829 dbus_connection_close(connection);
2831 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2832 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2833 const char *id, *path;
2835 if (!dbus_message_get_args(message, &error,
2836 DBUS_TYPE_STRING, &id,
2837 DBUS_TYPE_OBJECT_PATH, &path,
2839 log_error("Failed to parse message: %s", bus_error_message(&error));
2840 else if (streq(dbus_message_get_member(message), "UnitNew"))
2841 printf("Unit %s added.\n", id);
2843 printf("Unit %s removed.\n", id);
2845 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew")) {
2849 if (!dbus_message_get_args(message, &error,
2850 DBUS_TYPE_UINT32, &id,
2851 DBUS_TYPE_OBJECT_PATH, &path,
2853 log_error("Failed to parse message: %s", bus_error_message(&error));
2855 printf("Job %u added.\n", id);
2858 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2860 const char *path, *result;
2862 if (!dbus_message_get_args(message, &error,
2863 DBUS_TYPE_UINT32, &id,
2864 DBUS_TYPE_OBJECT_PATH, &path,
2865 DBUS_TYPE_STRING, &result,
2867 log_error("Failed to parse message: %s", bus_error_message(&error));
2869 printf("Job %u removed (result=%s).\n", id, result);
2872 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
2874 const char *path, *interface, *property = "Id";
2875 DBusMessageIter iter, sub;
2877 path = dbus_message_get_path(message);
2879 if (!dbus_message_get_args(message, &error,
2880 DBUS_TYPE_STRING, &interface,
2881 DBUS_TYPE_INVALID)) {
2882 log_error("Failed to parse message: %s", bus_error_message(&error));
2886 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2887 !streq(interface, "org.freedesktop.systemd1.Unit"))
2890 if (!(m = dbus_message_new_method_call(
2891 "org.freedesktop.systemd1",
2893 "org.freedesktop.DBus.Properties",
2895 log_error("Could not allocate message.");
2899 if (!dbus_message_append_args(m,
2900 DBUS_TYPE_STRING, &interface,
2901 DBUS_TYPE_STRING, &property,
2902 DBUS_TYPE_INVALID)) {
2903 log_error("Could not append arguments to message.");
2907 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2908 log_error("Failed to issue method call: %s", bus_error_message(&error));
2912 if (!dbus_message_iter_init(reply, &iter) ||
2913 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2914 log_error("Failed to parse reply.");
2918 dbus_message_iter_recurse(&iter, &sub);
2920 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2923 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2924 log_error("Failed to parse reply.");
2928 dbus_message_iter_get_basic(&sub, &id);
2929 printf("Unit %s changed.\n", id);
2933 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2934 log_error("Failed to parse reply.");
2938 dbus_message_iter_get_basic(&sub, &id);
2939 printf("Job %u changed.\n", id);
2945 dbus_message_unref(m);
2948 dbus_message_unref(reply);
2950 dbus_error_free(&error);
2951 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2955 dbus_message_unref(m);
2958 dbus_message_unref(reply);
2960 dbus_error_free(&error);
2961 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2964 static int monitor(DBusConnection *bus, char **args, unsigned n) {
2965 DBusMessage *m = NULL, *reply = NULL;
2969 dbus_error_init(&error);
2972 dbus_bus_add_match(bus,
2974 "sender='org.freedesktop.systemd1',"
2975 "interface='org.freedesktop.systemd1.Manager',"
2976 "path='/org/freedesktop/systemd1'",
2979 if (dbus_error_is_set(&error)) {
2980 log_error("Failed to add match: %s", bus_error_message(&error));
2985 dbus_bus_add_match(bus,
2987 "sender='org.freedesktop.systemd1',"
2988 "interface='org.freedesktop.DBus.Properties',"
2989 "member='PropertiesChanged'",
2992 if (dbus_error_is_set(&error)) {
2993 log_error("Failed to add match: %s", bus_error_message(&error));
2999 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
3000 log_error("Failed to add filter.");
3005 if (!(m = dbus_message_new_method_call(
3006 "org.freedesktop.systemd1",
3007 "/org/freedesktop/systemd1",
3008 "org.freedesktop.systemd1.Manager",
3010 log_error("Could not allocate message.");
3015 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3016 log_error("Failed to issue method call: %s", bus_error_message(&error));
3021 while (dbus_connection_read_write_dispatch(bus, -1))
3028 /* This is slightly dirty, since we don't undo the filter or the matches. */
3031 dbus_message_unref(m);
3034 dbus_message_unref(reply);
3036 dbus_error_free(&error);
3041 static int dump(DBusConnection *bus, char **args, unsigned n) {
3042 DBusMessage *m = NULL, *reply = NULL;
3047 dbus_error_init(&error);
3051 if (!(m = dbus_message_new_method_call(
3052 "org.freedesktop.systemd1",
3053 "/org/freedesktop/systemd1",
3054 "org.freedesktop.systemd1.Manager",
3056 log_error("Could not allocate message.");
3060 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3061 log_error("Failed to issue method call: %s", bus_error_message(&error));
3066 if (!dbus_message_get_args(reply, &error,
3067 DBUS_TYPE_STRING, &text,
3068 DBUS_TYPE_INVALID)) {
3069 log_error("Failed to parse reply: %s", bus_error_message(&error));
3074 fputs(text, stdout);
3080 dbus_message_unref(m);
3083 dbus_message_unref(reply);
3085 dbus_error_free(&error);
3090 static int snapshot(DBusConnection *bus, char **args, unsigned n) {
3091 DBusMessage *m = NULL, *reply = NULL;
3094 const char *name = "", *path, *id;
3095 dbus_bool_t cleanup = FALSE;
3096 DBusMessageIter iter, sub;
3098 *interface = "org.freedesktop.systemd1.Unit",
3101 dbus_error_init(&error);
3103 if (!(m = dbus_message_new_method_call(
3104 "org.freedesktop.systemd1",
3105 "/org/freedesktop/systemd1",
3106 "org.freedesktop.systemd1.Manager",
3107 "CreateSnapshot"))) {
3108 log_error("Could not allocate message.");
3115 if (!dbus_message_append_args(m,
3116 DBUS_TYPE_STRING, &name,
3117 DBUS_TYPE_BOOLEAN, &cleanup,
3118 DBUS_TYPE_INVALID)) {
3119 log_error("Could not append arguments to message.");
3124 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3125 log_error("Failed to issue method call: %s", bus_error_message(&error));
3130 if (!dbus_message_get_args(reply, &error,
3131 DBUS_TYPE_OBJECT_PATH, &path,
3132 DBUS_TYPE_INVALID)) {
3133 log_error("Failed to parse reply: %s", bus_error_message(&error));
3138 dbus_message_unref(m);
3139 if (!(m = dbus_message_new_method_call(
3140 "org.freedesktop.systemd1",
3142 "org.freedesktop.DBus.Properties",
3144 log_error("Could not allocate message.");
3148 if (!dbus_message_append_args(m,
3149 DBUS_TYPE_STRING, &interface,
3150 DBUS_TYPE_STRING, &property,
3151 DBUS_TYPE_INVALID)) {
3152 log_error("Could not append arguments to message.");
3157 dbus_message_unref(reply);
3158 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3159 log_error("Failed to issue method call: %s", bus_error_message(&error));
3164 if (!dbus_message_iter_init(reply, &iter) ||
3165 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3166 log_error("Failed to parse reply.");
3171 dbus_message_iter_recurse(&iter, &sub);
3173 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3174 log_error("Failed to parse reply.");
3179 dbus_message_iter_get_basic(&sub, &id);
3187 dbus_message_unref(m);
3190 dbus_message_unref(reply);
3192 dbus_error_free(&error);
3197 static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
3198 DBusMessage *m = NULL, *reply = NULL;
3206 dbus_error_init(&error);
3208 for (i = 1; i < n; i++) {
3209 const char *path = NULL;
3211 if (!(m = dbus_message_new_method_call(
3212 "org.freedesktop.systemd1",
3213 "/org/freedesktop/systemd1",
3214 "org.freedesktop.systemd1.Manager",
3216 log_error("Could not allocate message.");
3221 if (!dbus_message_append_args(m,
3222 DBUS_TYPE_STRING, &args[i],
3223 DBUS_TYPE_INVALID)) {
3224 log_error("Could not append arguments to message.");
3229 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3230 log_error("Failed to issue method call: %s", bus_error_message(&error));
3235 if (!dbus_message_get_args(reply, &error,
3236 DBUS_TYPE_OBJECT_PATH, &path,
3237 DBUS_TYPE_INVALID)) {
3238 log_error("Failed to parse reply: %s", bus_error_message(&error));
3243 dbus_message_unref(m);
3244 if (!(m = dbus_message_new_method_call(
3245 "org.freedesktop.systemd1",
3247 "org.freedesktop.systemd1.Snapshot",
3249 log_error("Could not allocate message.");
3254 dbus_message_unref(reply);
3255 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3256 log_error("Failed to issue method call: %s", bus_error_message(&error));
3261 dbus_message_unref(m);
3262 dbus_message_unref(reply);
3270 dbus_message_unref(m);
3273 dbus_message_unref(reply);
3275 dbus_error_free(&error);
3280 static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
3281 DBusMessage *m = NULL, *reply = NULL;
3286 dbus_error_init(&error);
3288 if (arg_action == ACTION_RELOAD)
3290 else if (arg_action == ACTION_REEXEC)
3291 method = "Reexecute";
3293 assert(arg_action == ACTION_SYSTEMCTL);
3296 streq(args[0], "clear-jobs") ||
3297 streq(args[0], "cancel") ? "ClearJobs" :
3298 streq(args[0], "daemon-reexec") ? "Reexecute" :
3299 streq(args[0], "reset-failed") ? "ResetFailed" :
3300 streq(args[0], "halt") ? "Halt" :
3301 streq(args[0], "poweroff") ? "PowerOff" :
3302 streq(args[0], "reboot") ? "Reboot" :
3303 streq(args[0], "kexec") ? "KExec" :
3304 streq(args[0], "exit") ? "Exit" :
3305 /* "daemon-reload" */ "Reload";
3308 if (!(m = dbus_message_new_method_call(
3309 "org.freedesktop.systemd1",
3310 "/org/freedesktop/systemd1",
3311 "org.freedesktop.systemd1.Manager",
3313 log_error("Could not allocate message.");
3317 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3319 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3320 /* There's always a fallback possible for
3321 * legacy actions. */
3326 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3327 /* On reexecution, we expect a disconnect, not
3333 log_error("Failed to issue method call: %s", bus_error_message(&error));
3342 dbus_message_unref(m);
3345 dbus_message_unref(reply);
3347 dbus_error_free(&error);
3352 static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
3353 DBusMessage *m = NULL, *reply = NULL;
3359 dbus_error_init(&error);
3362 return daemon_reload(bus, args, n);
3364 for (i = 1; i < n; i++) {
3366 if (!(m = dbus_message_new_method_call(
3367 "org.freedesktop.systemd1",
3368 "/org/freedesktop/systemd1",
3369 "org.freedesktop.systemd1.Manager",
3370 "ResetFailedUnit"))) {
3371 log_error("Could not allocate message.");
3376 if (!dbus_message_append_args(m,
3377 DBUS_TYPE_STRING, args + i,
3378 DBUS_TYPE_INVALID)) {
3379 log_error("Could not append arguments to message.");
3384 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3385 log_error("Failed to issue method call: %s", bus_error_message(&error));
3390 dbus_message_unref(m);
3391 dbus_message_unref(reply);
3399 dbus_message_unref(m);
3402 dbus_message_unref(reply);
3404 dbus_error_free(&error);
3409 static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3410 DBusMessage *m = NULL, *reply = NULL;
3412 DBusMessageIter iter, sub, sub2;
3415 *interface = "org.freedesktop.systemd1.Manager",
3416 *property = "Environment";
3418 dbus_error_init(&error);
3422 if (!(m = dbus_message_new_method_call(
3423 "org.freedesktop.systemd1",
3424 "/org/freedesktop/systemd1",
3425 "org.freedesktop.DBus.Properties",
3427 log_error("Could not allocate message.");
3431 if (!dbus_message_append_args(m,
3432 DBUS_TYPE_STRING, &interface,
3433 DBUS_TYPE_STRING, &property,
3434 DBUS_TYPE_INVALID)) {
3435 log_error("Could not append arguments to message.");
3440 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3441 log_error("Failed to issue method call: %s", bus_error_message(&error));
3446 if (!dbus_message_iter_init(reply, &iter) ||
3447 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3448 log_error("Failed to parse reply.");
3453 dbus_message_iter_recurse(&iter, &sub);
3455 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3456 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3457 log_error("Failed to parse reply.");
3462 dbus_message_iter_recurse(&sub, &sub2);
3464 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3467 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3468 log_error("Failed to parse reply.");
3473 dbus_message_iter_get_basic(&sub2, &text);
3474 printf("%s\n", text);
3476 dbus_message_iter_next(&sub2);
3483 dbus_message_unref(m);
3486 dbus_message_unref(reply);
3488 dbus_error_free(&error);
3493 static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3494 DBusMessage *m = NULL, *reply = NULL;
3498 DBusMessageIter iter, sub;
3501 dbus_error_init(&error);
3503 method = streq(args[0], "set-environment")
3505 : "UnsetEnvironment";
3507 if (!(m = dbus_message_new_method_call(
3508 "org.freedesktop.systemd1",
3509 "/org/freedesktop/systemd1",
3510 "org.freedesktop.systemd1.Manager",
3513 log_error("Could not allocate message.");
3517 dbus_message_iter_init_append(m, &iter);
3519 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3520 log_error("Could not append arguments to message.");
3525 for (i = 1; i < n; i++)
3526 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3527 log_error("Could not append arguments to message.");
3532 if (!dbus_message_iter_close_container(&iter, &sub)) {
3533 log_error("Could not append arguments to message.");
3538 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3539 log_error("Failed to issue method call: %s", bus_error_message(&error));
3548 dbus_message_unref(m);
3551 dbus_message_unref(reply);
3553 dbus_error_free(&error);
3566 static Hashmap *will_install = NULL, *have_installed = NULL;
3567 static Set *remove_symlinks_to = NULL;
3568 static unsigned n_symlinks = 0;
3570 static void install_info_free(InstallInfo *i) {
3575 strv_free(i->aliases);
3576 strv_free(i->wanted_by);
3580 static void install_info_hashmap_free(Hashmap *m) {
3583 while ((i = hashmap_steal_first(m)))
3584 install_info_free(i);
3589 static int install_info_add(const char *name) {
3593 assert(will_install);
3595 if (!unit_name_is_valid_no_type(name, true)) {
3596 log_warning("Unit name %s is not a valid unit name.", name);
3600 if (hashmap_get(have_installed, name) ||
3601 hashmap_get(will_install, name))
3604 if (!(i = new0(InstallInfo, 1))) {
3609 if (!(i->name = strdup(name))) {
3614 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3621 install_info_free(i);
3626 static int config_parse_also(
3627 const char *filename,
3629 const char *section,
3644 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3648 if (!(n = strndup(w, l)))
3651 if ((r = install_info_add(n)) < 0) {
3652 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3663 static int mark_symlink_for_removal(const char *p) {
3668 assert(path_is_absolute(p));
3670 if (!remove_symlinks_to)
3673 if (!(n = strdup(p)))
3676 path_kill_slashes(n);
3678 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3680 return r == -EEXIST ? 0 : r;
3686 static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3695 if (!(d = fdopendir(fd))) {
3696 close_nointr_nofail(fd);
3702 while ((de = readdir(d))) {
3703 bool is_dir = false, is_link = false;
3705 if (ignore_file(de->d_name))
3708 if (de->d_type == DT_LNK)
3710 else if (de->d_type == DT_DIR)
3712 else if (de->d_type == DT_UNKNOWN) {
3715 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3716 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3723 is_link = S_ISLNK(st.st_mode);
3724 is_dir = S_ISDIR(st.st_mode);
3732 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3733 log_error("Failed to open %s/%s: %m", root, de->d_name);
3740 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3741 log_error("Failed to allocate directory string.");
3742 close_nointr_nofail(nfd);
3747 /* This will close nfd, regardless whether it succeeds or not */
3748 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3754 } else if (is_link) {
3758 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3759 log_error("Failed to allocate symlink string.");
3764 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3765 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3773 if ((c = canonicalize_file_name(dest))) {
3774 /* This might fail if the destination
3775 * is already removed */
3781 path_kill_slashes(dest);
3782 if (set_get(remove_symlinks_to, dest)) {
3785 log_info("rm '%s'", p);
3787 if (unlink(p) < 0) {
3788 log_error("Cannot unlink symlink %s: %m", p);
3793 rmdir_parents(p, config_path);
3794 path_kill_slashes(p);
3796 if (!set_get(remove_symlinks_to, p)) {
3798 if ((r = mark_symlink_for_removal(p)) < 0) {
3817 static int remove_marked_symlinks(const char *config_path) {
3821 assert(config_path);
3823 if (set_size(remove_symlinks_to) <= 0)
3826 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3833 if ((cfd = dup(fd)) < 0) {
3838 /* This takes possession of cfd and closes it */
3839 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3845 close_nointr_nofail(fd);
3850 static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3857 if (streq(verb, "enable")) {
3860 mkdir_parents(new_path, 0755);
3862 if (symlink(old_path, new_path) >= 0) {
3865 log_info("ln -s '%s' '%s'", old_path, new_path);
3870 if (errno != EEXIST) {
3871 log_error("Cannot link %s to %s: %m", old_path, new_path);
3875 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3877 if (errno == EINVAL) {
3878 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3882 log_error("readlink() failed: %s", strerror(-r));
3886 if (streq(dest, old_path)) {
3892 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3901 log_info("ln -s '%s' '%s'", old_path, new_path);
3903 if (symlink(old_path, new_path) >= 0)
3906 log_error("Cannot link %s to %s: %m", old_path, new_path);
3909 } else if (streq(verb, "disable")) {
3912 if ((r = mark_symlink_for_removal(old_path)) < 0)
3915 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3916 if (errno == ENOENT)
3919 if (errno == EINVAL) {
3920 log_warning("File %s not a symlink, ignoring.", old_path);
3924 log_error("readlink() failed: %s", strerror(-r));
3928 if (!streq(dest, old_path)) {
3929 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3936 if ((r = mark_symlink_for_removal(new_path)) < 0)
3940 log_info("rm '%s'", new_path);
3942 if (unlink(new_path) >= 0)
3945 log_error("Cannot unlink %s: %m", new_path);
3948 } else if (streq(verb, "is-enabled")) {
3951 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3953 if (errno == ENOENT || errno == EINVAL)
3956 log_error("readlink() failed: %s", strerror(-r));
3960 if (streq(dest, old_path)) {
3968 assert_not_reached("Unknown action.");
3971 static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3973 char *alias_path = NULL;
3978 assert(config_path);
3980 STRV_FOREACH(s, i->aliases) {
3983 if (!(alias_path = path_make_absolute(*s, config_path))) {
3984 log_error("Out of memory");
3989 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3992 if (streq(verb, "disable"))
3993 rmdir_parents(alias_path, config_path);
4003 static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
4005 char *alias_path = NULL;
4010 assert(config_path);
4012 STRV_FOREACH(s, i->wanted_by) {
4013 if (!unit_name_is_valid_no_type(*s, true)) {
4014 log_error("Invalid name %s.", *s);
4022 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
4023 log_error("Out of memory");
4028 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
4031 if (streq(verb, "disable"))
4032 rmdir_parents(alias_path, config_path);
4043 static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
4045 const ConfigItem items[] = {
4046 { "Alias", config_parse_strv, 0, &i->aliases, "Install" },
4047 { "WantedBy", config_parse_strv, 0, &i->wanted_by, "Install" },
4048 { "Also", config_parse_also, 0, NULL, "Install" },
4050 { NULL, NULL, 0, NULL, NULL }
4054 char *filename = NULL;
4061 STRV_FOREACH(p, paths->unit_path) {
4064 if (!(filename = path_make_absolute(i->name, *p))) {
4065 log_error("Out of memory");
4069 /* Ensure that we don't follow symlinks */
4070 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
4071 if ((f = fdopen(fd, "re")))
4074 if (errno == ELOOP) {
4075 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
4080 if (errno != ENOENT) {
4081 log_error("Failed to open %s: %m", filename);
4091 #if (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA)) || defined(TARGET_MEEGO) && defined (HAVE_SYSV_COMPAT)
4093 if (endswith(i->name, ".service")) {
4097 if (asprintf(&sysv, SYSTEM_SYSVINIT_PATH "/%s", i->name) < 0) {
4098 log_error("Out of memory");
4102 sysv[strlen(sysv) - sizeof(".service") + 1] = 0;
4103 exists = access(sysv, F_OK) >= 0;
4109 const char *argv[] = {
4116 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", i->name);
4118 argv[1] = file_name_from_path(sysv);
4120 streq(verb, "enable") ? "on" :
4121 streq(verb, "disable") ? "off" : "--level=5";
4123 log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2]));
4125 if ((pid = fork()) < 0) {
4126 log_error("Failed to fork: %m");
4129 } else if (pid == 0) {
4130 execv(argv[0], (char**) argv);
4131 _exit(EXIT_FAILURE);
4136 if ((r = wait_for_terminate(pid, &status)) < 0)
4139 if (status.si_code == CLD_EXITED) {
4141 if (streq(verb, "is-enabled"))
4142 return status.si_status == 0 ? 1 : 0;
4144 if (status.si_status == 0)
4147 return status.si_status == 0 ? 0 : -EINVAL;
4158 log_error("Couldn't find %s.", i->name);
4162 /* Consider unit files stored in /lib and /usr always enabled
4163 * if they have no [Install] data. */
4164 if (streq(verb, "is-enabled") &&
4165 strv_isempty(i->aliases) &&
4166 strv_isempty(i->wanted_by) &&
4167 !path_startswith(filename, "/etc"))
4172 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
4177 n_symlinks += strv_length(i->aliases);
4178 n_symlinks += strv_length(i->wanted_by);
4182 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
4185 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
4188 if ((r = mark_symlink_for_removal(filename)) < 0)
4191 if ((r = remove_marked_symlinks(config_path)) < 0)
4197 static char *get_config_path(void) {
4199 if (arg_user && arg_global)
4200 return strdup(USER_CONFIG_UNIT_PATH);
4205 if (user_config_home(&p) < 0)
4211 return strdup(SYSTEM_CONFIG_UNIT_PATH);
4214 static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
4218 char *config_path = NULL;
4221 const char *verb = args[0];
4223 dbus_error_init(&error);
4226 if ((r = lookup_paths_init(&paths, arg_user ? MANAGER_USER : MANAGER_SYSTEM)) < 0) {
4227 log_error("Failed to determine lookup paths: %s", strerror(-r));
4231 if (!(config_path = get_config_path())) {
4232 log_error("Failed to determine config path");
4237 will_install = hashmap_new(string_hash_func, string_compare_func);
4238 have_installed = hashmap_new(string_hash_func, string_compare_func);
4240 if (!will_install || !have_installed) {
4241 log_error("Failed to allocate unit sets.");
4246 if (!arg_defaults && streq(verb, "disable"))
4247 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
4248 log_error("Failed to allocate symlink sets.");
4253 for (j = 1; j < n; j++)
4254 if ((r = install_info_add(args[j])) < 0) {
4255 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
4261 while ((i = hashmap_first(will_install))) {
4264 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
4266 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
4274 /* In test mode and found something */
4280 if (streq(verb, "is-enabled"))
4281 r = r > 0 ? 0 : -ENOENT;
4283 if (n_symlinks <= 0)
4284 log_warning("Unit files contain no applicable installation information. Ignoring.");
4287 /* Don't try to reload anything if the user asked us to not do this */
4289 /* Don't try to reload anything when updating a unit globally */
4291 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
4292 (arg_user || sd_booted() > 0) &&
4293 /* Don't try to reload anything if we are running in a chroot environment */
4294 (arg_user || running_in_chroot() <= 0) ) {
4297 if ((q = daemon_reload(bus, args, n)) < 0)
4303 install_info_hashmap_free(will_install);
4304 install_info_hashmap_free(have_installed);
4306 set_free_free(remove_symlinks_to);
4308 lookup_paths_free(&paths);
4315 static int systemctl_help(void) {
4317 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4318 "Send control commands to or query the systemd manager.\n\n"
4319 " -h --help Show this help\n"
4320 " --version Show package version\n"
4321 " -t --type=TYPE List only units of a particular type\n"
4322 " -p --property=NAME Show only properties by this name\n"
4323 " -a --all Show all units/properties, including dead/empty ones\n"
4324 " --failed Show only failed units\n"
4325 " --full Don't ellipsize unit names on output\n"
4326 " --fail When queueing a new job, fail if conflicting jobs are\n"
4328 " --ignore-dependencies\n"
4329 " When queueing a new job, ignore all its dependencies\n"
4330 " --kill-mode=MODE How to send signal\n"
4331 " --kill-who=WHO Who to send signal to\n"
4332 " -s --signal=SIGNAL Which signal to send\n"
4333 " -H --host=[user@]host\n"
4334 " Show information for remote host\n"
4335 " -P --privileged Acquire privileges before execution\n"
4336 " -q --quiet Suppress output\n"
4337 " --no-block Do not wait until operation finished\n"
4338 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4339 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4341 " --no-pager Do not pipe output into a pager.\n"
4342 " --no-ask-password\n"
4343 " Do not ask for system passwords\n"
4344 " --order When generating graph for dot, show only order\n"
4345 " --require When generating graph for dot, show only requirement\n"
4346 " --system Connect to system manager\n"
4347 " --user Connect to user service manager\n"
4348 " --global Enable/disable unit files globally\n"
4349 " -f --force When enabling unit files, override existing symlinks\n"
4350 " When shutting down, execute action immediately\n"
4351 " --defaults When disabling unit files, remove default symlinks only\n\n"
4353 " list-units List units\n"
4354 " start [NAME...] Start (activate) one or more units\n"
4355 " stop [NAME...] Stop (deactivate) one or more units\n"
4356 " reload [NAME...] Reload one or more units\n"
4357 " restart [NAME...] Start or restart one or more units\n"
4358 " try-restart [NAME...] Restart one or more units if active\n"
4359 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4360 " otherwise start or restart\n"
4361 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4362 " otherwise restart if active\n"
4363 " isolate [NAME] Start one unit and stop all others\n"
4364 " kill [NAME...] Send signal to processes of a unit\n"
4365 " is-active [NAME...] Check whether units are active\n"
4366 " status [NAME...|PID...] Show runtime status of one or more units\n"
4367 " show [NAME...|JOB...] Show properties of one or more\n"
4368 " units/jobs or the manager\n"
4369 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4371 " enable [NAME...] Enable one or more unit files\n"
4372 " disable [NAME...] Disable one or more unit files\n"
4373 " is-enabled [NAME...] Check whether unit files are enabled\n"
4374 " load [NAME...] Load one or more units\n"
4375 " list-jobs List jobs\n"
4376 " cancel [JOB...] Cancel all, one, or more jobs\n"
4377 " monitor Monitor unit/job changes\n"
4378 " dump Dump server status\n"
4379 " dot Dump dependency graph for dot(1)\n"
4380 " snapshot [NAME] Create a snapshot\n"
4381 " delete [NAME...] Remove one or more snapshots\n"
4382 " daemon-reload Reload systemd manager configuration\n"
4383 " daemon-reexec Reexecute systemd manager\n"
4384 " show-environment Dump environment\n"
4385 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4386 " unset-environment [NAME...] Unset one or more environment variables\n"
4387 " default Enter system default mode\n"
4388 " rescue Enter system rescue mode\n"
4389 " emergency Enter system emergency mode\n"
4390 " halt Shut down and halt the system\n"
4391 " poweroff Shut down and power-off the system\n"
4392 " reboot Shut down and reboot the system\n"
4393 " kexec Shut down and reboot the system with kexec\n"
4394 " exit Ask for user instance termination\n",
4395 program_invocation_short_name);
4400 static int halt_help(void) {
4402 printf("%s [OPTIONS...]\n\n"
4403 "%s the system.\n\n"
4404 " --help Show this help\n"
4405 " --halt Halt the machine\n"
4406 " -p --poweroff Switch off the machine\n"
4407 " --reboot Reboot the machine\n"
4408 " -f --force Force immediate halt/power-off/reboot\n"
4409 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4410 " -d --no-wtmp Don't write wtmp record\n"
4411 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4412 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4413 program_invocation_short_name,
4414 arg_action == ACTION_REBOOT ? "Reboot" :
4415 arg_action == ACTION_POWEROFF ? "Power off" :
4421 static int shutdown_help(void) {
4423 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4424 "Shut down the system.\n\n"
4425 " --help Show this help\n"
4426 " -H --halt Halt the machine\n"
4427 " -P --poweroff Power-off the machine\n"
4428 " -r --reboot Reboot the machine\n"
4429 " -h Equivalent to --poweroff, overriden by --halt\n"
4430 " -k Don't halt/power-off/reboot, just send warnings\n"
4431 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4432 " -c Cancel a pending shutdown\n",
4433 program_invocation_short_name);
4438 static int telinit_help(void) {
4440 printf("%s [OPTIONS...] {COMMAND}\n\n"
4441 "Send control commands to the init daemon.\n\n"
4442 " --help Show this help\n"
4443 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4445 " 0 Power-off the machine\n"
4446 " 6 Reboot the machine\n"
4447 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4448 " 1, s, S Enter rescue mode\n"
4449 " q, Q Reload init daemon configuration\n"
4450 " u, U Reexecute init daemon\n",
4451 program_invocation_short_name);
4456 static int runlevel_help(void) {
4458 printf("%s [OPTIONS...]\n\n"
4459 "Prints the previous and current runlevel of the init system.\n\n"
4460 " --help Show this help\n",
4461 program_invocation_short_name);
4466 static int systemctl_parse_argv(int argc, char *argv[]) {
4470 ARG_IGNORE_DEPENDENCIES,
4485 ARG_NO_ASK_PASSWORD,
4489 static const struct option options[] = {
4490 { "help", no_argument, NULL, 'h' },
4491 { "version", no_argument, NULL, ARG_VERSION },
4492 { "type", required_argument, NULL, 't' },
4493 { "property", required_argument, NULL, 'p' },
4494 { "all", no_argument, NULL, 'a' },
4495 { "failed", no_argument, NULL, ARG_FAILED },
4496 { "full", no_argument, NULL, ARG_FULL },
4497 { "fail", no_argument, NULL, ARG_FAIL },
4498 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4499 { "user", no_argument, NULL, ARG_USER },
4500 { "system", no_argument, NULL, ARG_SYSTEM },
4501 { "global", no_argument, NULL, ARG_GLOBAL },
4502 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4503 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4504 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4505 { "quiet", no_argument, NULL, 'q' },
4506 { "order", no_argument, NULL, ARG_ORDER },
4507 { "require", no_argument, NULL, ARG_REQUIRE },
4508 { "force", no_argument, NULL, 'f' },
4509 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4510 { "defaults", no_argument, NULL, ARG_DEFAULTS },
4511 { "kill-mode", required_argument, NULL, ARG_KILL_MODE },
4512 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4513 { "signal", required_argument, NULL, 's' },
4514 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4515 { "host", required_argument, NULL, 'H' },
4516 { "privileged",no_argument, NULL, 'P' },
4517 { NULL, 0, NULL, 0 }
4525 /* Only when running as systemctl we ask for passwords */
4526 arg_ask_password = true;
4528 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:P", options, NULL)) >= 0) {
4537 puts(PACKAGE_STRING);
4539 puts(SYSTEMD_FEATURES);
4549 if (!(l = strv_append(arg_property, optarg)))
4552 strv_free(arg_property);
4555 /* If the user asked for a particular
4556 * property, show it to him, even if it is
4567 arg_job_mode = "fail";
4570 case ARG_IGNORE_DEPENDENCIES:
4571 arg_job_mode = "ignore-dependencies";
4583 arg_no_block = true;
4587 arg_no_pager = true;
4595 arg_dot = DOT_ORDER;
4599 arg_dot = DOT_REQUIRE;
4619 arg_no_reload = true;
4628 arg_defaults = true;
4632 arg_kill_who = optarg;
4636 arg_kill_mode = optarg;
4640 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4641 log_error("Failed to parse signal string %s.", optarg);
4646 case ARG_NO_ASK_PASSWORD:
4647 arg_ask_password = false;
4651 arg_transport = TRANSPORT_POLKIT;
4655 arg_transport = TRANSPORT_SSH;
4663 log_error("Unknown option code %c", c);
4668 if (arg_transport != TRANSPORT_NORMAL && arg_user) {
4669 log_error("Cannot access user instance remotely.");
4676 static int halt_parse_argv(int argc, char *argv[]) {
4685 static const struct option options[] = {
4686 { "help", no_argument, NULL, ARG_HELP },
4687 { "halt", no_argument, NULL, ARG_HALT },
4688 { "poweroff", no_argument, NULL, 'p' },
4689 { "reboot", no_argument, NULL, ARG_REBOOT },
4690 { "force", no_argument, NULL, 'f' },
4691 { "wtmp-only", no_argument, NULL, 'w' },
4692 { "no-wtmp", no_argument, NULL, 'd' },
4693 { "no-sync", no_argument, NULL, 'n' },
4694 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4695 { NULL, 0, NULL, 0 }
4703 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4704 if (runlevel == '0' || runlevel == '6')
4705 arg_immediate = true;
4707 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4715 arg_action = ACTION_HALT;
4719 if (arg_action != ACTION_REBOOT)
4720 arg_action = ACTION_POWEROFF;
4724 arg_action = ACTION_REBOOT;
4728 arg_immediate = true;
4749 /* Compatibility nops */
4756 log_error("Unknown option code %c", c);
4761 if (optind < argc) {
4762 log_error("Too many arguments.");
4769 static int parse_time_spec(const char *t, usec_t *_u) {
4773 if (streq(t, "now"))
4775 else if (t[0] == '+') {
4778 if (safe_atou64(t + 1, &u) < 0)
4781 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4790 hour = strtol(t, &e, 10);
4791 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4794 minute = strtol(e+1, &e, 10);
4795 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4798 n = now(CLOCK_REALTIME);
4799 s = (time_t) (n / USEC_PER_SEC);
4802 assert_se(localtime_r(&s, &tm));
4804 tm.tm_hour = (int) hour;
4805 tm.tm_min = (int) minute;
4808 assert_se(s = mktime(&tm));
4810 *_u = (usec_t) s * USEC_PER_SEC;
4813 *_u += USEC_PER_DAY;
4819 static bool kexec_loaded(void) {
4820 bool loaded = false;
4823 if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) {
4831 static int shutdown_parse_argv(int argc, char *argv[]) {
4838 static const struct option options[] = {
4839 { "help", no_argument, NULL, ARG_HELP },
4840 { "halt", no_argument, NULL, 'H' },
4841 { "poweroff", no_argument, NULL, 'P' },
4842 { "reboot", no_argument, NULL, 'r' },
4843 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4844 { NULL, 0, NULL, 0 }
4852 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4860 arg_action = ACTION_HALT;
4864 arg_action = ACTION_POWEROFF;
4869 arg_action = ACTION_KEXEC;
4871 arg_action = ACTION_REBOOT;
4875 if (arg_action != ACTION_HALT)
4876 arg_action = ACTION_POWEROFF;
4889 /* Compatibility nops */
4893 arg_action = ACTION_CANCEL_SHUTDOWN;
4900 log_error("Unknown option code %c", c);
4905 if (argc > optind) {
4906 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4907 log_error("Failed to parse time specification: %s", argv[optind]);
4911 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4913 /* We skip the time argument */
4914 if (argc > optind + 1)
4915 arg_wall = argv + optind + 1;
4922 static int telinit_parse_argv(int argc, char *argv[]) {
4929 static const struct option options[] = {
4930 { "help", no_argument, NULL, ARG_HELP },
4931 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4932 { NULL, 0, NULL, 0 }
4935 static const struct {
4939 { '0', ACTION_POWEROFF },
4940 { '6', ACTION_REBOOT },
4941 { '1', ACTION_RESCUE },
4942 { '2', ACTION_RUNLEVEL2 },
4943 { '3', ACTION_RUNLEVEL3 },
4944 { '4', ACTION_RUNLEVEL4 },
4945 { '5', ACTION_RUNLEVEL5 },
4946 { 's', ACTION_RESCUE },
4947 { 'S', ACTION_RESCUE },
4948 { 'q', ACTION_RELOAD },
4949 { 'Q', ACTION_RELOAD },
4950 { 'u', ACTION_REEXEC },
4951 { 'U', ACTION_REEXEC }
4960 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4975 log_error("Unknown option code %c", c);
4980 if (optind >= argc) {
4985 if (optind + 1 < argc) {
4986 log_error("Too many arguments.");
4990 if (strlen(argv[optind]) != 1) {
4991 log_error("Expected single character argument.");
4995 for (i = 0; i < ELEMENTSOF(table); i++)
4996 if (table[i].from == argv[optind][0])
4999 if (i >= ELEMENTSOF(table)) {
5000 log_error("Unknown command %s.", argv[optind]);
5004 arg_action = table[i].to;
5011 static int runlevel_parse_argv(int argc, char *argv[]) {
5017 static const struct option options[] = {
5018 { "help", no_argument, NULL, ARG_HELP },
5019 { NULL, 0, NULL, 0 }
5027 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5038 log_error("Unknown option code %c", c);
5043 if (optind < argc) {
5044 log_error("Too many arguments.");
5051 static int parse_argv(int argc, char *argv[]) {
5055 if (program_invocation_short_name) {
5057 if (strstr(program_invocation_short_name, "halt")) {
5058 arg_action = ACTION_HALT;
5059 return halt_parse_argv(argc, argv);
5060 } else if (strstr(program_invocation_short_name, "poweroff")) {
5061 arg_action = ACTION_POWEROFF;
5062 return halt_parse_argv(argc, argv);
5063 } else if (strstr(program_invocation_short_name, "reboot")) {
5065 arg_action = ACTION_KEXEC;
5067 arg_action = ACTION_REBOOT;
5068 return halt_parse_argv(argc, argv);
5069 } else if (strstr(program_invocation_short_name, "shutdown")) {
5070 arg_action = ACTION_POWEROFF;
5071 return shutdown_parse_argv(argc, argv);
5072 } else if (strstr(program_invocation_short_name, "init")) {
5074 if (sd_booted() > 0) {
5075 arg_action = ACTION_INVALID;
5076 return telinit_parse_argv(argc, argv);
5078 /* Hmm, so some other init system is
5079 * running, we need to forward this
5080 * request to it. For now we simply
5081 * guess that it is Upstart. */
5083 execv("/lib/upstart/telinit", argv);
5085 log_error("Couldn't find an alternative telinit implementation to spawn.");
5089 } else if (strstr(program_invocation_short_name, "runlevel")) {
5090 arg_action = ACTION_RUNLEVEL;
5091 return runlevel_parse_argv(argc, argv);
5095 arg_action = ACTION_SYSTEMCTL;
5096 return systemctl_parse_argv(argc, argv);
5099 static int action_to_runlevel(void) {
5101 static const char table[_ACTION_MAX] = {
5102 [ACTION_HALT] = '0',
5103 [ACTION_POWEROFF] = '0',
5104 [ACTION_REBOOT] = '6',
5105 [ACTION_RUNLEVEL2] = '2',
5106 [ACTION_RUNLEVEL3] = '3',
5107 [ACTION_RUNLEVEL4] = '4',
5108 [ACTION_RUNLEVEL5] = '5',
5109 [ACTION_RESCUE] = '1'
5112 assert(arg_action < _ACTION_MAX);
5114 return table[arg_action];
5117 static int talk_upstart(void) {
5118 DBusMessage *m = NULL, *reply = NULL;
5120 int previous, rl, r;
5122 env1_buf[] = "RUNLEVEL=X",
5123 env2_buf[] = "PREVLEVEL=X";
5124 char *env1 = env1_buf, *env2 = env2_buf;
5125 const char *emit = "runlevel";
5126 dbus_bool_t b_false = FALSE;
5127 DBusMessageIter iter, sub;
5128 DBusConnection *bus;
5130 dbus_error_init(&error);
5132 if (!(rl = action_to_runlevel()))
5135 if (utmp_get_runlevel(&previous, NULL) < 0)
5138 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5139 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5144 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5149 if ((r = bus_check_peercred(bus)) < 0) {
5150 log_error("Failed to verify owner of bus.");
5154 if (!(m = dbus_message_new_method_call(
5155 "com.ubuntu.Upstart",
5156 "/com/ubuntu/Upstart",
5157 "com.ubuntu.Upstart0_6",
5160 log_error("Could not allocate message.");
5165 dbus_message_iter_init_append(m, &iter);
5167 env1_buf[sizeof(env1_buf)-2] = rl;
5168 env2_buf[sizeof(env2_buf)-2] = previous;
5170 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5171 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5172 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5173 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5174 !dbus_message_iter_close_container(&iter, &sub) ||
5175 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5176 log_error("Could not append arguments to message.");
5181 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5183 if (error_is_no_service(&error)) {
5188 log_error("Failed to issue method call: %s", bus_error_message(&error));
5197 dbus_message_unref(m);
5200 dbus_message_unref(reply);
5203 dbus_connection_flush(bus);
5204 dbus_connection_close(bus);
5205 dbus_connection_unref(bus);
5208 dbus_error_free(&error);
5213 static int talk_initctl(void) {
5214 struct init_request request;
5218 if (!(rl = action_to_runlevel()))
5222 request.magic = INIT_MAGIC;
5223 request.sleeptime = 0;
5224 request.cmd = INIT_CMD_RUNLVL;
5225 request.runlevel = rl;
5227 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5229 if (errno == ENOENT)
5232 log_error("Failed to open "INIT_FIFO": %m");
5237 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5238 close_nointr_nofail(fd);
5241 log_error("Failed to write to "INIT_FIFO": %m");
5242 return errno ? -errno : -EIO;
5248 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5250 static const struct {
5258 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
5260 { "list-units", LESS, 1, list_units },
5261 { "list-jobs", EQUAL, 1, list_jobs },
5262 { "clear-jobs", EQUAL, 1, daemon_reload },
5263 { "load", MORE, 2, load_unit },
5264 { "cancel", MORE, 2, cancel_job },
5265 { "start", MORE, 2, start_unit },
5266 { "stop", MORE, 2, start_unit },
5267 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5268 { "reload", MORE, 2, start_unit },
5269 { "restart", MORE, 2, start_unit },
5270 { "try-restart", MORE, 2, start_unit },
5271 { "reload-or-restart", MORE, 2, start_unit },
5272 { "reload-or-try-restart", MORE, 2, start_unit },
5273 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5274 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5275 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5276 { "isolate", EQUAL, 2, start_unit },
5277 { "kill", MORE, 2, kill_unit },
5278 { "is-active", MORE, 2, check_unit },
5279 { "check", MORE, 2, check_unit },
5280 { "show", MORE, 1, show },
5281 { "status", MORE, 2, show },
5282 { "monitor", EQUAL, 1, monitor },
5283 { "dump", EQUAL, 1, dump },
5284 { "dot", EQUAL, 1, dot },
5285 { "snapshot", LESS, 2, snapshot },
5286 { "delete", MORE, 2, delete_snapshot },
5287 { "daemon-reload", EQUAL, 1, daemon_reload },
5288 { "daemon-reexec", EQUAL, 1, daemon_reload },
5289 { "show-environment", EQUAL, 1, show_enviroment },
5290 { "set-environment", MORE, 2, set_environment },
5291 { "unset-environment", MORE, 2, set_environment },
5292 { "halt", EQUAL, 1, start_special },
5293 { "poweroff", EQUAL, 1, start_special },
5294 { "reboot", EQUAL, 1, start_special },
5295 { "kexec", EQUAL, 1, start_special },
5296 { "default", EQUAL, 1, start_special },
5297 { "rescue", EQUAL, 1, start_special },
5298 { "emergency", EQUAL, 1, start_special },
5299 { "exit", EQUAL, 1, start_special },
5300 { "reset-failed", MORE, 1, reset_failed },
5301 { "enable", MORE, 2, enable_unit },
5302 { "disable", MORE, 2, enable_unit },
5303 { "is-enabled", MORE, 2, enable_unit }
5313 left = argc - optind;
5316 /* Special rule: no arguments means "list-units" */
5319 if (streq(argv[optind], "help")) {
5324 for (i = 0; i < ELEMENTSOF(verbs); i++)
5325 if (streq(argv[optind], verbs[i].verb))
5328 if (i >= ELEMENTSOF(verbs)) {
5329 log_error("Unknown operation %s", argv[optind]);
5334 switch (verbs[i].argc_cmp) {
5337 if (left != verbs[i].argc) {
5338 log_error("Invalid number of arguments.");
5345 if (left < verbs[i].argc) {
5346 log_error("Too few arguments.");
5353 if (left > verbs[i].argc) {
5354 log_error("Too many arguments.");
5361 assert_not_reached("Unknown comparison operator.");
5364 /* Require a bus connection for all operations but
5366 if (!streq(verbs[i].verb, "enable") && !streq(verbs[i].verb, "disable")) {
5368 if (running_in_chroot() > 0) {
5369 log_info("Running in chroot, ignoring request.");
5374 log_error("Failed to get D-Bus connection: %s", error->message);
5379 return verbs[i].dispatch(bus, argv + optind, left);
5382 static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
5384 struct msghdr msghdr;
5386 union sockaddr_union sockaddr;
5387 struct shutdownd_command c;
5395 strncpy(c.wall_message, message, sizeof(c.wall_message));
5397 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5401 sockaddr.sa.sa_family = AF_UNIX;
5402 sockaddr.un.sun_path[0] = 0;
5403 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5406 iovec.iov_base = (char*) &c;
5407 iovec.iov_len = sizeof(c);
5410 msghdr.msg_name = &sockaddr;
5411 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5413 msghdr.msg_iov = &iovec;
5414 msghdr.msg_iovlen = 1;
5416 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5417 close_nointr_nofail(fd);
5421 close_nointr_nofail(fd);
5425 static int reload_with_fallback(DBusConnection *bus) {
5428 /* First, try systemd via D-Bus. */
5429 if (daemon_reload(bus, NULL, 0) > 0)
5433 /* Nothing else worked, so let's try signals */
5434 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5436 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5437 log_error("kill() failed: %m");
5444 static int start_with_fallback(DBusConnection *bus) {
5447 /* First, try systemd via D-Bus. */
5448 if (start_unit(bus, NULL, 0) >= 0)
5452 /* Hmm, talking to systemd via D-Bus didn't work. Then
5453 * let's try to talk to Upstart via D-Bus. */
5454 if (talk_upstart() > 0)
5457 /* Nothing else worked, so let's try
5459 if (talk_initctl() > 0)
5462 log_error("Failed to talk to init daemon.");
5466 warn_wall(arg_action);
5470 static int halt_main(DBusConnection *bus) {
5473 if (geteuid() != 0) {
5474 log_error("Must be root.");
5480 char date[FORMAT_TIMESTAMP_MAX];
5482 m = strv_join(arg_wall, " ");
5483 r = send_shutdownd(arg_when,
5484 arg_action == ACTION_HALT ? 'H' :
5485 arg_action == ACTION_POWEROFF ? 'P' :
5492 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5494 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5495 format_timestamp(date, sizeof(date), arg_when));
5500 if (!arg_dry && !arg_immediate)
5501 return start_with_fallback(bus);
5504 if (sd_booted() > 0)
5505 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5506 else if ((r = utmp_put_shutdown(0)) < 0)
5507 log_warning("Failed to write utmp record: %s", strerror(-r));
5516 /* Make sure C-A-D is handled by the kernel from this
5518 reboot(RB_ENABLE_CAD);
5520 switch (arg_action) {
5523 log_info("Halting.");
5524 reboot(RB_HALT_SYSTEM);
5527 case ACTION_POWEROFF:
5528 log_info("Powering off.");
5529 reboot(RB_POWER_OFF);
5533 log_info("Rebooting.");
5534 reboot(RB_AUTOBOOT);
5538 assert_not_reached("Unknown halt action.");
5541 /* We should never reach this. */
5545 static int runlevel_main(void) {
5546 int r, runlevel, previous;
5548 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
5549 printf("unknown\n");
5554 previous <= 0 ? 'N' : previous,
5555 runlevel <= 0 ? 'N' : runlevel);
5560 static void pager_open(void) {
5568 if (!on_tty() || arg_no_pager)
5571 if ((pager = getenv("PAGER")))
5572 if (!*pager || streq(pager, "cat"))
5575 /* Determine and cache number of columns before we spawn the
5576 * pager so that we get the value from the actual tty */
5580 log_error("Failed to create pager pipe: %m");
5584 parent_pid = getpid();
5587 if (pager_pid < 0) {
5588 log_error("Failed to fork pager: %m");
5593 /* In the child start the pager */
5594 if (pager_pid == 0) {
5596 dup2(fd[0], STDIN_FILENO);
5599 setenv("LESS", "FRSX", 0);
5601 /* Make sure the pager goes away when the parent dies */
5602 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
5603 _exit(EXIT_FAILURE);
5605 /* Check whether our parent died before we were able
5606 * to set the death signal */
5607 if (getppid() != parent_pid)
5608 _exit(EXIT_SUCCESS);
5611 execlp(pager, pager, NULL);
5612 execl("/bin/sh", "sh", "-c", pager, NULL);
5614 /* Debian's alternatives command for pagers is
5615 * called 'pager'. Note that we do not call
5616 * sensible-pagers here, since that is just a
5617 * shell script that implements a logic that
5618 * is similar to this one anyway, but is
5619 * Debian-specific. */
5620 execlp("pager", "pager", NULL);
5622 execlp("less", "less", NULL);
5623 execlp("more", "more", NULL);
5626 log_error("Unable to execute pager: %m");
5627 _exit(EXIT_FAILURE);
5630 /* Return in the parent */
5631 if (dup2(fd[1], STDOUT_FILENO) < 0)
5632 log_error("Failed to duplicate pager pipe: %m");
5637 static void pager_close(void) {
5643 /* Inform pager that we are done */
5645 kill(pager_pid, SIGCONT);
5646 wait_for_terminate(pager_pid, &dummy);
5650 static void agent_close(void) {
5656 /* Inform agent that we are done */
5657 kill(agent_pid, SIGTERM);
5658 kill(agent_pid, SIGCONT);
5659 wait_for_terminate(agent_pid, &dummy);
5663 int main(int argc, char*argv[]) {
5664 int r, retval = EXIT_FAILURE;
5665 DBusConnection *bus = NULL;
5668 dbus_error_init(&error);
5670 log_parse_environment();
5673 if ((r = parse_argv(argc, argv)) < 0)
5676 retval = EXIT_SUCCESS;
5680 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5681 * let's shortcut this */
5682 if (arg_action == ACTION_RUNLEVEL) {
5683 r = runlevel_main();
5684 retval = r < 0 ? EXIT_FAILURE : r;
5688 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5689 log_info("Running in chroot, ignoring request.");
5694 if (arg_transport == TRANSPORT_NORMAL)
5695 bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
5696 else if (arg_transport == TRANSPORT_POLKIT) {
5697 bus_connect_system_polkit(&bus, &error);
5698 private_bus = false;
5699 } else if (arg_transport == TRANSPORT_SSH) {
5700 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5701 private_bus = false;
5703 assert_not_reached("Uh, invalid transport...");
5705 switch (arg_action) {
5707 case ACTION_SYSTEMCTL:
5708 r = systemctl_main(bus, argc, argv, &error);
5712 case ACTION_POWEROFF:
5718 case ACTION_RUNLEVEL2:
5719 case ACTION_RUNLEVEL3:
5720 case ACTION_RUNLEVEL4:
5721 case ACTION_RUNLEVEL5:
5723 case ACTION_EMERGENCY:
5724 case ACTION_DEFAULT:
5725 r = start_with_fallback(bus);
5730 r = reload_with_fallback(bus);
5733 case ACTION_CANCEL_SHUTDOWN:
5734 r = send_shutdownd(0, 0, false, NULL);
5737 case ACTION_INVALID:
5738 case ACTION_RUNLEVEL:
5740 assert_not_reached("Unknown action");
5743 retval = r < 0 ? EXIT_FAILURE : r;
5748 dbus_connection_flush(bus);
5749 dbus_connection_close(bus);
5750 dbus_connection_unref(bus);
5753 dbus_error_free(&error);
5757 strv_free(arg_property);