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systemctl: when status is called without arguments show pager
[thirdparty/systemd.git] / src / systemctl / systemctl.c
1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3 /***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7 Copyright 2013 Marc-Antoine Perennou
8
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
13
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
21 ***/
22
23 #include <sys/reboot.h>
24 #include <linux/reboot.h>
25 #include <sys/syscall.h>
26 #include <stdio.h>
27 #include <getopt.h>
28 #include <locale.h>
29 #include <stdbool.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <sys/ioctl.h>
33 #include <termios.h>
34 #include <unistd.h>
35 #include <fcntl.h>
36 #include <sys/socket.h>
37 #include <sys/stat.h>
38 #include <stddef.h>
39 #include <sys/prctl.h>
40
41 #include "sd-daemon.h"
42 #include "sd-shutdown.h"
43 #include "sd-login.h"
44 #include "sd-bus.h"
45 #include "log.h"
46 #include "util.h"
47 #include "macro.h"
48 #include "set.h"
49 #include "utmp-wtmp.h"
50 #include "special.h"
51 #include "initreq.h"
52 #include "path-util.h"
53 #include "strv.h"
54 #include "cgroup-show.h"
55 #include "cgroup-util.h"
56 #include "list.h"
57 #include "path-lookup.h"
58 #include "conf-parser.h"
59 #include "exit-status.h"
60 #include "bus-errors.h"
61 #include "build.h"
62 #include "unit-name.h"
63 #include "pager.h"
64 #include "spawn-ask-password-agent.h"
65 #include "spawn-polkit-agent.h"
66 #include "install.h"
67 #include "logs-show.h"
68 #include "socket-util.h"
69 #include "fileio.h"
70 #include "bus-util.h"
71 #include "bus-message.h"
72 #include "bus-error.h"
73 #include "bus-errors.h"
74
75 static char **arg_types = NULL;
76 static char **arg_states = NULL;
77 static char **arg_properties = NULL;
78 static bool arg_all = false;
79 static bool original_stdout_is_tty;
80 static enum dependency {
81 DEPENDENCY_FORWARD,
82 DEPENDENCY_REVERSE,
83 DEPENDENCY_AFTER,
84 DEPENDENCY_BEFORE,
85 } arg_dependency = DEPENDENCY_FORWARD;
86 static const char *arg_job_mode = "replace";
87 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
88 static bool arg_no_block = false;
89 static bool arg_no_legend = false;
90 static bool arg_no_pager = false;
91 static bool arg_no_wtmp = false;
92 static bool arg_no_wall = false;
93 static bool arg_no_reload = false;
94 static bool arg_show_types = false;
95 static bool arg_ignore_inhibitors = false;
96 static bool arg_dry = false;
97 static bool arg_quiet = false;
98 static bool arg_full = false;
99 static int arg_force = 0;
100 static bool arg_ask_password = true;
101 static bool arg_runtime = false;
102 static char **arg_wall = NULL;
103 static const char *arg_kill_who = NULL;
104 static int arg_signal = SIGTERM;
105 static const char *arg_root = NULL;
106 static usec_t arg_when = 0;
107 static enum action {
108 _ACTION_INVALID,
109 ACTION_SYSTEMCTL,
110 ACTION_HALT,
111 ACTION_POWEROFF,
112 ACTION_REBOOT,
113 ACTION_KEXEC,
114 ACTION_EXIT,
115 ACTION_SUSPEND,
116 ACTION_HIBERNATE,
117 ACTION_HYBRID_SLEEP,
118 ACTION_RUNLEVEL2,
119 ACTION_RUNLEVEL3,
120 ACTION_RUNLEVEL4,
121 ACTION_RUNLEVEL5,
122 ACTION_RESCUE,
123 ACTION_EMERGENCY,
124 ACTION_DEFAULT,
125 ACTION_RELOAD,
126 ACTION_REEXEC,
127 ACTION_RUNLEVEL,
128 ACTION_CANCEL_SHUTDOWN,
129 _ACTION_MAX
130 } arg_action = ACTION_SYSTEMCTL;
131 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
132 static char *arg_host = NULL;
133 static unsigned arg_lines = 10;
134 static OutputMode arg_output = OUTPUT_SHORT;
135 static bool arg_plain = false;
136
137 static int daemon_reload(sd_bus *bus, char **args);
138 static int halt_now(enum action a);
139
140 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet);
141
142 static void pager_open_if_enabled(void) {
143
144 if (arg_no_pager)
145 return;
146
147 pager_open(false);
148 }
149
150 static void ask_password_agent_open_if_enabled(void) {
151
152 /* Open the password agent as a child process if necessary */
153
154 if (!arg_ask_password)
155 return;
156
157 if (arg_scope != UNIT_FILE_SYSTEM)
158 return;
159
160 if (arg_transport != BUS_TRANSPORT_LOCAL)
161 return;
162
163 ask_password_agent_open();
164 }
165
166 #ifdef HAVE_LOGIND
167 static void polkit_agent_open_if_enabled(void) {
168
169 /* Open the polkit agent as a child process if necessary */
170
171 if (!arg_ask_password)
172 return;
173
174 if (arg_scope != UNIT_FILE_SYSTEM)
175 return;
176
177 if (arg_transport != BUS_TRANSPORT_LOCAL)
178 return;
179
180 polkit_agent_open();
181 }
182 #endif
183
184 static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
185 assert(error);
186
187 if (!sd_bus_error_is_set(error))
188 return r;
189
190 if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) ||
191 sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
192 sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
193 sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
194 return EXIT_NOPERMISSION;
195
196 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
197 return EXIT_NOTINSTALLED;
198
199 if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
200 sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED))
201 return EXIT_NOTIMPLEMENTED;
202
203 if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
204 return EXIT_NOTCONFIGURED;
205
206 if (r != 0)
207 return r;
208
209 return EXIT_FAILURE;
210 }
211
212 static void warn_wall(enum action a) {
213 static const char *table[_ACTION_MAX] = {
214 [ACTION_HALT] = "The system is going down for system halt NOW!",
215 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
216 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
217 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
218 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
219 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
220 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
221 };
222
223 if (arg_no_wall)
224 return;
225
226 if (arg_wall) {
227 _cleanup_free_ char *p;
228
229 p = strv_join(arg_wall, " ");
230 if (!p) {
231 log_oom();
232 return;
233 }
234
235 if (*p) {
236 utmp_wall(p, NULL);
237 return;
238 }
239 }
240
241 if (!table[a])
242 return;
243
244 utmp_wall(table[a], NULL);
245 }
246
247 static bool avoid_bus(void) {
248
249 if (running_in_chroot() > 0)
250 return true;
251
252 if (sd_booted() <= 0)
253 return true;
254
255 if (!isempty(arg_root))
256 return true;
257
258 if (arg_scope == UNIT_FILE_GLOBAL)
259 return true;
260
261 return false;
262 }
263
264 static int compare_unit_info(const void *a, const void *b) {
265 const UnitInfo *u = a, *v = b;
266 const char *d1, *d2;
267
268 d1 = strrchr(u->id, '.');
269 d2 = strrchr(v->id, '.');
270
271 if (d1 && d2) {
272 int r;
273
274 r = strcasecmp(d1, d2);
275 if (r != 0)
276 return r;
277 }
278
279 return strcasecmp(u->id, v->id);
280 }
281
282 static bool output_show_unit(const UnitInfo *u) {
283 const char *dot;
284
285 if (!strv_isempty(arg_states))
286 return
287 strv_contains(arg_states, u->load_state) ||
288 strv_contains(arg_states, u->sub_state) ||
289 strv_contains(arg_states, u->active_state);
290
291 return (!arg_types || ((dot = strrchr(u->id, '.')) &&
292 strv_find(arg_types, dot+1))) &&
293 (arg_all || !(streq(u->active_state, "inactive")
294 || u->following[0]) || u->job_id > 0);
295 }
296
297 static void output_units_list(const UnitInfo *unit_infos, unsigned c) {
298 unsigned id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len;
299 const UnitInfo *u;
300 unsigned n_shown = 0;
301 int job_count = 0;
302
303 max_id_len = sizeof("UNIT")-1;
304 load_len = sizeof("LOAD")-1;
305 active_len = sizeof("ACTIVE")-1;
306 sub_len = sizeof("SUB")-1;
307 job_len = sizeof("JOB")-1;
308 desc_len = 0;
309
310 for (u = unit_infos; u < unit_infos + c; u++) {
311 if (!output_show_unit(u))
312 continue;
313
314 max_id_len = MAX(max_id_len, strlen(u->id));
315 load_len = MAX(load_len, strlen(u->load_state));
316 active_len = MAX(active_len, strlen(u->active_state));
317 sub_len = MAX(sub_len, strlen(u->sub_state));
318
319 if (u->job_id != 0) {
320 job_len = MAX(job_len, strlen(u->job_type));
321 job_count++;
322 }
323 }
324
325 if (!arg_full && original_stdout_is_tty) {
326 unsigned basic_len;
327
328 id_len = MIN(max_id_len, 25u);
329 basic_len = 5 + id_len + 5 + active_len + sub_len;
330
331 if (job_count)
332 basic_len += job_len + 1;
333
334 if (basic_len < (unsigned) columns()) {
335 unsigned extra_len, incr;
336 extra_len = columns() - basic_len;
337
338 /* Either UNIT already got 25, or is fully satisfied.
339 * Grant up to 25 to DESC now. */
340 incr = MIN(extra_len, 25u);
341 desc_len += incr;
342 extra_len -= incr;
343
344 /* split the remaining space between UNIT and DESC,
345 * but do not give UNIT more than it needs. */
346 if (extra_len > 0) {
347 incr = MIN(extra_len / 2, max_id_len - id_len);
348 id_len += incr;
349 desc_len += extra_len - incr;
350 }
351 }
352 } else
353 id_len = max_id_len;
354
355 for (u = unit_infos; u < unit_infos + c; u++) {
356 _cleanup_free_ char *e = NULL;
357 const char *on_loaded, *off_loaded, *on = "";
358 const char *on_active, *off_active, *off = "";
359
360 if (!output_show_unit(u))
361 continue;
362
363 if (!n_shown && !arg_no_legend) {
364 printf("%-*s %-*s %-*s %-*s ",
365 id_len, "UNIT",
366 load_len, "LOAD",
367 active_len, "ACTIVE",
368 sub_len, "SUB");
369
370 if (job_count)
371 printf("%-*s ", job_len, "JOB");
372
373 if (!arg_full && arg_no_pager)
374 printf("%.*s\n", desc_len, "DESCRIPTION");
375 else
376 printf("%s\n", "DESCRIPTION");
377 }
378
379 n_shown++;
380
381 if (streq(u->load_state, "error") ||
382 streq(u->load_state, "not-found")) {
383 on_loaded = on = ansi_highlight_red();
384 off_loaded = off = ansi_highlight_off();
385 } else
386 on_loaded = off_loaded = "";
387
388 if (streq(u->active_state, "failed")) {
389 on_active = on = ansi_highlight_red();
390 off_active = off = ansi_highlight_off();
391 } else
392 on_active = off_active = "";
393
394 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
395
396 printf("%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
397 on, id_len, e ? e : u->id, off,
398 on_loaded, load_len, u->load_state, off_loaded,
399 on_active, active_len, u->active_state,
400 sub_len, u->sub_state, off_active,
401 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
402
403 if (desc_len > 0)
404 printf("%.*s\n", desc_len, u->description);
405 else
406 printf("%s\n", u->description);
407 }
408
409 if (!arg_no_legend) {
410 const char *on, *off;
411
412 if (n_shown) {
413 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
414 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
415 "SUB = The low-level unit activation state, values depend on unit type.\n");
416 if (job_count)
417 printf("JOB = Pending job for the unit.\n");
418 puts("");
419 on = ansi_highlight();
420 off = ansi_highlight_off();
421 } else {
422 on = ansi_highlight_red();
423 off = ansi_highlight_off();
424 }
425
426 if (arg_all)
427 printf("%s%u loaded units listed.%s\n"
428 "To show all installed unit files use 'systemctl list-unit-files'.\n",
429 on, n_shown, off);
430 else
431 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
432 "To show all installed unit files use 'systemctl list-unit-files'.\n",
433 on, n_shown, off);
434 }
435 }
436
437 static int get_unit_list(
438 sd_bus *bus,
439 sd_bus_message **_reply,
440 UnitInfo **_unit_infos) {
441
442 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
443 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
444 _cleanup_free_ UnitInfo *unit_infos = NULL;
445 size_t size = 0;
446 int r, c = 0;
447 UnitInfo u;
448
449 assert(bus);
450 assert(_reply);
451 assert(_unit_infos);
452
453 r = sd_bus_call_method(
454 bus,
455 "org.freedesktop.systemd1",
456 "/org/freedesktop/systemd1",
457 "org.freedesktop.systemd1.Manager",
458 "ListUnits",
459 &error,
460 &reply,
461 NULL);
462 if (r < 0) {
463 log_error("Failed to list units: %s", bus_error_message(&error, r));
464 return r;
465 }
466
467 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
468 if (r < 0)
469 return bus_log_parse_error(r);
470
471 while ((r = bus_parse_unit_info(reply, &u)) > 0) {
472
473 if (!GREEDY_REALLOC(unit_infos, size, c+1))
474 return log_oom();
475
476 unit_infos[c++] = u;
477 }
478 if (r < 0)
479 return bus_log_parse_error(r);
480
481 r = sd_bus_message_exit_container(reply);
482 if (r < 0)
483 return bus_log_parse_error(r);
484
485 *_reply = reply;
486 reply = NULL;
487
488 *_unit_infos = unit_infos;
489 unit_infos = NULL;
490
491 return c;
492 }
493
494 static int list_units(sd_bus *bus, char **args) {
495 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
496 _cleanup_free_ UnitInfo *unit_infos = NULL;
497 int r;
498
499 pager_open_if_enabled();
500
501 r = get_unit_list(bus, &reply, &unit_infos);
502 if (r < 0)
503 return r;
504
505 qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
506 output_units_list(unit_infos, r);
507
508 return 0;
509 }
510
511 static int get_triggered_units(
512 sd_bus *bus,
513 const char* path,
514 char*** ret) {
515
516 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
517 int r;
518
519 r = sd_bus_get_property_strv(
520 bus,
521 "org.freedesktop.systemd1",
522 path,
523 "org.freedesktop.systemd1.Unit",
524 "Triggers",
525 &error,
526 ret);
527
528 if (r < 0)
529 log_error("Failed to determine triggers: %s", bus_error_message(&error, r));
530
531 return 0;
532 }
533
534 static int get_listening(
535 sd_bus *bus,
536 const char* unit_path,
537 char*** listening) {
538
539 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
540 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
541 const char *type, *path;
542 int r, n = 0;
543
544 r = sd_bus_get_property(
545 bus,
546 "org.freedesktop.systemd1",
547 unit_path,
548 "org.freedesktop.systemd1.Socket",
549 "Listen",
550 &error,
551 &reply,
552 "a(ss)");
553 if (r < 0) {
554 log_error("Failed to get list of listening sockets: %s", bus_error_message(&error, r));
555 return r;
556 }
557
558 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
559 if (r < 0)
560 return bus_log_parse_error(r);
561
562 while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) {
563
564 r = strv_extend(listening, type);
565 if (r < 0)
566 return log_oom();
567
568 r = strv_extend(listening, path);
569 if (r < 0)
570 return log_oom();
571
572 n++;
573 }
574 if (r < 0)
575 return bus_log_parse_error(r);
576
577 r = sd_bus_message_exit_container(reply);
578 if (r < 0)
579 return bus_log_parse_error(r);
580
581 return n;
582 }
583
584 struct socket_info {
585 const char* id;
586
587 char* type;
588 char* path;
589
590 /* Note: triggered is a list here, although it almost certainly
591 * will always be one unit. Nevertheless, dbus API allows for multiple
592 * values, so let's follow that.*/
593 char** triggered;
594
595 /* The strv above is shared. free is set only in the first one. */
596 bool own_triggered;
597 };
598
599 static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) {
600 int o;
601
602 assert(a);
603 assert(b);
604
605 o = strcmp(a->path, b->path);
606 if (o == 0)
607 o = strcmp(a->type, b->type);
608
609 return o;
610 }
611
612 static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
613 struct socket_info *s;
614 unsigned pathlen = sizeof("LISTEN") - 1,
615 typelen = (sizeof("TYPE") - 1) * arg_show_types,
616 socklen = sizeof("UNIT") - 1,
617 servlen = sizeof("ACTIVATES") - 1;
618 const char *on, *off;
619
620 for (s = socket_infos; s < socket_infos + cs; s++) {
621 unsigned tmp = 0;
622 char **a;
623
624 socklen = MAX(socklen, strlen(s->id));
625 if (arg_show_types)
626 typelen = MAX(typelen, strlen(s->type));
627 pathlen = MAX(pathlen, strlen(s->path));
628
629 STRV_FOREACH(a, s->triggered)
630 tmp += strlen(*a) + 2*(a != s->triggered);
631 servlen = MAX(servlen, tmp);
632 }
633
634 if (cs) {
635 if (!arg_no_legend)
636 printf("%-*s %-*.*s%-*s %s\n",
637 pathlen, "LISTEN",
638 typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
639 socklen, "UNIT",
640 "ACTIVATES");
641
642 for (s = socket_infos; s < socket_infos + cs; s++) {
643 char **a;
644
645 if (arg_show_types)
646 printf("%-*s %-*s %-*s",
647 pathlen, s->path, typelen, s->type, socklen, s->id);
648 else
649 printf("%-*s %-*s",
650 pathlen, s->path, socklen, s->id);
651 STRV_FOREACH(a, s->triggered)
652 printf("%s %s",
653 a == s->triggered ? "" : ",", *a);
654 printf("\n");
655 }
656
657 on = ansi_highlight();
658 off = ansi_highlight_off();
659 if (!arg_no_legend)
660 printf("\n");
661 } else {
662 on = ansi_highlight_red();
663 off = ansi_highlight_off();
664 }
665
666 if (!arg_no_legend) {
667 printf("%s%u sockets listed.%s\n", on, cs, off);
668 if (!arg_all)
669 printf("Pass --all to see loaded but inactive sockets, too.\n");
670 }
671
672 return 0;
673 }
674
675 static int list_sockets(sd_bus *bus, char **args) {
676 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
677 _cleanup_free_ UnitInfo *unit_infos = NULL;
678 struct socket_info *socket_infos = NULL;
679 const UnitInfo *u;
680 struct socket_info *s;
681 unsigned cs = 0;
682 size_t size = 0;
683 int r = 0, n;
684
685 pager_open_if_enabled();
686
687 n = get_unit_list(bus, &reply, &unit_infos);
688 if (n < 0)
689 return n;
690
691 for (u = unit_infos; u < unit_infos + n; u++) {
692 _cleanup_strv_free_ char **listening = NULL, **triggered = NULL;
693 int i, c;
694
695 if (!output_show_unit(u))
696 continue;
697
698 if (!endswith(u->id, ".socket"))
699 continue;
700
701 r = get_triggered_units(bus, u->unit_path, &triggered);
702 if (r < 0)
703 goto cleanup;
704
705 c = get_listening(bus, u->unit_path, &listening);
706 if (c < 0) {
707 r = c;
708 goto cleanup;
709 }
710
711 if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
712 r = log_oom();
713 goto cleanup;
714 }
715
716 for (i = 0; i < c; i++)
717 socket_infos[cs + i] = (struct socket_info) {
718 .id = u->id,
719 .type = listening[i*2],
720 .path = listening[i*2 + 1],
721 .triggered = triggered,
722 .own_triggered = i==0,
723 };
724
725 /* from this point on we will cleanup those socket_infos */
726 cs += c;
727 free(listening);
728 listening = triggered = NULL; /* avoid cleanup */
729 }
730
731 qsort_safe(socket_infos, cs, sizeof(struct socket_info),
732 (__compar_fn_t) socket_info_compare);
733
734 output_sockets_list(socket_infos, cs);
735
736 cleanup:
737 assert(cs == 0 || socket_infos);
738 for (s = socket_infos; s < socket_infos + cs; s++) {
739 free(s->type);
740 free(s->path);
741 if (s->own_triggered)
742 strv_free(s->triggered);
743 }
744 free(socket_infos);
745
746 return r;
747 }
748
749 static int get_next_elapse(
750 sd_bus *bus,
751 const char *path,
752 dual_timestamp *next) {
753
754 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
755 dual_timestamp t;
756 int r;
757
758 assert(bus);
759 assert(path);
760 assert(next);
761
762 r = sd_bus_get_property_trivial(
763 bus,
764 "org.freedesktop.systemd1",
765 path,
766 "org.freedesktop.systemd1.Timer",
767 "NextElapseUSecMonotonic",
768 &error,
769 't',
770 &t.monotonic);
771 if (r < 0) {
772 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
773 return r;
774 }
775
776 r = sd_bus_get_property_trivial(
777 bus,
778 "org.freedesktop.systemd1",
779 path,
780 "org.freedesktop.systemd1.Timer",
781 "NextElapseUSecRealtime",
782 &error,
783 't',
784 &t.realtime);
785 if (r < 0) {
786 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
787 return r;
788 }
789
790 *next = t;
791 return 0;
792 }
793
794 struct timer_info {
795 const char* id;
796 usec_t next_elapse;
797 char** triggered;
798 };
799
800 static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
801 assert(a);
802 assert(b);
803
804 if (a->next_elapse < b->next_elapse)
805 return -1;
806 if (a->next_elapse > b->next_elapse)
807 return 1;
808
809 return strcmp(a->id, b->id);
810 }
811
812 static int output_timers_list(struct timer_info *timer_infos, unsigned n) {
813 struct timer_info *t;
814 unsigned
815 nextlen = sizeof("NEXT") - 1,
816 leftlen = sizeof("LEFT") - 1,
817 unitlen = sizeof("UNIT") - 1,
818 activatelen = sizeof("ACTIVATES") - 1;
819
820 const char *on, *off;
821
822 assert(timer_infos || n == 0);
823
824 for (t = timer_infos; t < timer_infos + n; t++) {
825 unsigned ul = 0;
826 char **a;
827
828 if (t->next_elapse > 0) {
829 char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
830
831 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
832 nextlen = MAX(nextlen, strlen(tstamp) + 1);
833
834 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
835 leftlen = MAX(leftlen, strlen(trel));
836 }
837
838 unitlen = MAX(unitlen, strlen(t->id));
839
840 STRV_FOREACH(a, t->triggered)
841 ul += strlen(*a) + 2*(a != t->triggered);
842 activatelen = MAX(activatelen, ul);
843 }
844
845 if (n > 0) {
846 if (!arg_no_legend)
847 printf("%-*s %-*s %-*s %s\n",
848 nextlen, "NEXT",
849 leftlen, "LEFT",
850 unitlen, "UNIT",
851 "ACTIVATES");
852
853 for (t = timer_infos; t < timer_infos + n; t++) {
854 char tstamp[FORMAT_TIMESTAMP_MAX] = "n/a", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
855 char **a;
856
857 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
858 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
859
860 printf("%-*s %-*s %-*s",
861 nextlen, tstamp, leftlen, trel, unitlen, t->id);
862
863 STRV_FOREACH(a, t->triggered)
864 printf("%s %s",
865 a == t->triggered ? "" : ",", *a);
866 printf("\n");
867 }
868
869 on = ansi_highlight();
870 off = ansi_highlight_off();
871 if (!arg_no_legend)
872 printf("\n");
873 } else {
874 on = ansi_highlight_red();
875 off = ansi_highlight_off();
876 }
877
878 if (!arg_no_legend) {
879 printf("%s%u timers listed.%s\n", on, n, off);
880 if (!arg_all)
881 printf("Pass --all to see loaded but inactive timers, too.\n");
882 }
883
884 return 0;
885 }
886
887 static int list_timers(sd_bus *bus, char **args) {
888
889 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
890 _cleanup_free_ struct timer_info *timer_infos = NULL;
891 _cleanup_free_ UnitInfo *unit_infos = NULL;
892 struct timer_info *t;
893 const UnitInfo *u;
894 size_t size = 0;
895 int n, c = 0;
896 dual_timestamp nw;
897 int r = 0;
898
899 pager_open_if_enabled();
900
901 n = get_unit_list(bus, &reply, &unit_infos);
902 if (n < 0)
903 return n;
904
905 dual_timestamp_get(&nw);
906
907 for (u = unit_infos; u < unit_infos + n; u++) {
908 _cleanup_strv_free_ char **triggered = NULL;
909 dual_timestamp next;
910 usec_t m;
911
912 if (!output_show_unit(u))
913 continue;
914
915 if (!endswith(u->id, ".timer"))
916 continue;
917
918 r = get_triggered_units(bus, u->unit_path, &triggered);
919 if (r < 0)
920 goto cleanup;
921
922 r = get_next_elapse(bus, u->unit_path, &next);
923 if (r < 0)
924 goto cleanup;
925
926 if (next.monotonic != (usec_t) -1 && next.monotonic > 0) {
927 usec_t converted;
928
929 if (next.monotonic > nw.monotonic)
930 converted = nw.realtime + (next.monotonic - nw.monotonic);
931 else
932 converted = nw.realtime - (nw.monotonic - next.monotonic);
933
934 if (next.realtime != (usec_t) -1 && next.realtime > 0)
935 m = MIN(converted, next.realtime);
936 else
937 m = converted;
938 } else
939 m = next.realtime;
940
941 if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
942 r = log_oom();
943 goto cleanup;
944 }
945
946 timer_infos[c++] = (struct timer_info) {
947 .id = u->id,
948 .next_elapse = m,
949 .triggered = triggered,
950 };
951
952 triggered = NULL; /* avoid cleanup */
953 }
954
955 qsort_safe(timer_infos, c, sizeof(struct timer_info),
956 (__compar_fn_t) timer_info_compare);
957
958 output_timers_list(timer_infos, c);
959
960 cleanup:
961 for (t = timer_infos; t < timer_infos + c; t++)
962 strv_free(t->triggered);
963
964 return r;
965 }
966
967 static int compare_unit_file_list(const void *a, const void *b) {
968 const char *d1, *d2;
969 const UnitFileList *u = a, *v = b;
970
971 d1 = strrchr(u->path, '.');
972 d2 = strrchr(v->path, '.');
973
974 if (d1 && d2) {
975 int r;
976
977 r = strcasecmp(d1, d2);
978 if (r != 0)
979 return r;
980 }
981
982 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
983 }
984
985 static bool output_show_unit_file(const UnitFileList *u) {
986 const char *dot;
987
988 return !arg_types || ((dot = strrchr(u->path, '.')) && strv_find(arg_types, dot+1));
989 }
990
991 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
992 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
993 const UnitFileList *u;
994
995 max_id_len = sizeof("UNIT FILE")-1;
996 state_cols = sizeof("STATE")-1;
997
998 for (u = units; u < units + c; u++) {
999 if (!output_show_unit_file(u))
1000 continue;
1001
1002 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
1003 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
1004 }
1005
1006 if (!arg_full) {
1007 unsigned basic_cols;
1008
1009 id_cols = MIN(max_id_len, 25u);
1010 basic_cols = 1 + id_cols + state_cols;
1011 if (basic_cols < (unsigned) columns())
1012 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
1013 } else
1014 id_cols = max_id_len;
1015
1016 if (!arg_no_legend)
1017 printf("%-*s %-*s\n",
1018 id_cols, "UNIT FILE",
1019 state_cols, "STATE");
1020
1021 for (u = units; u < units + c; u++) {
1022 _cleanup_free_ char *e = NULL;
1023 const char *on, *off;
1024 const char *id;
1025
1026 if (!output_show_unit_file(u))
1027 continue;
1028
1029 n_shown++;
1030
1031 if (u->state == UNIT_FILE_MASKED ||
1032 u->state == UNIT_FILE_MASKED_RUNTIME ||
1033 u->state == UNIT_FILE_DISABLED ||
1034 u->state == UNIT_FILE_INVALID) {
1035 on = ansi_highlight_red();
1036 off = ansi_highlight_off();
1037 } else if (u->state == UNIT_FILE_ENABLED) {
1038 on = ansi_highlight_green();
1039 off = ansi_highlight_off();
1040 } else
1041 on = off = "";
1042
1043 id = path_get_file_name(u->path);
1044
1045 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
1046
1047 printf("%-*s %s%-*s%s\n",
1048 id_cols, e ? e : id,
1049 on, state_cols, unit_file_state_to_string(u->state), off);
1050 }
1051
1052 if (!arg_no_legend)
1053 printf("\n%u unit files listed.\n", n_shown);
1054 }
1055
1056 static int list_unit_files(sd_bus *bus, char **args) {
1057 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1058 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1059 _cleanup_free_ UnitFileList *units = NULL;
1060 unsigned c = 0;
1061 const char *state;
1062 char *path;
1063 int r;
1064
1065 pager_open_if_enabled();
1066
1067 if (avoid_bus()) {
1068 Hashmap *h;
1069 UnitFileList *u;
1070 Iterator i;
1071 unsigned n_units;
1072
1073 h = hashmap_new(string_hash_func, string_compare_func);
1074 if (!h)
1075 return log_oom();
1076
1077 r = unit_file_get_list(arg_scope, arg_root, h);
1078 if (r < 0) {
1079 unit_file_list_free(h);
1080 log_error("Failed to get unit file list: %s", strerror(-r));
1081 return r;
1082 }
1083
1084 n_units = hashmap_size(h);
1085 units = new(UnitFileList, n_units);
1086 if (!units) {
1087 unit_file_list_free(h);
1088 return log_oom();
1089 }
1090
1091 HASHMAP_FOREACH(u, h, i) {
1092 memcpy(units + c++, u, sizeof(UnitFileList));
1093 free(u);
1094 }
1095
1096 assert(c == n_units);
1097 hashmap_free(h);
1098 } else {
1099 size_t size = 0;
1100
1101 r = sd_bus_call_method(
1102 bus,
1103 "org.freedesktop.systemd1",
1104 "/org/freedesktop/systemd1",
1105 "org.freedesktop.systemd1.Manager",
1106 "ListUnitFiles",
1107 &error,
1108 &reply,
1109 NULL);
1110 if (r < 0) {
1111 log_error("Failed to list unit files: %s", bus_error_message(&error, r));
1112 return r;
1113 }
1114
1115 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
1116 if (r < 0)
1117 return bus_log_parse_error(r);
1118
1119 while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
1120
1121 if (!GREEDY_REALLOC(units, size, c + 1))
1122 return log_oom();
1123
1124 units[c++] = (struct UnitFileList) {
1125 path,
1126 unit_file_state_from_string(state)
1127 };
1128 }
1129 if (r < 0)
1130 return bus_log_parse_error(r);
1131
1132 r = sd_bus_message_exit_container(reply);
1133 if (r < 0)
1134 return bus_log_parse_error(r);
1135 }
1136
1137 if (c > 0) {
1138 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
1139 output_unit_file_list(units, c);
1140 }
1141
1142 return 0;
1143 }
1144
1145 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
1146 _cleanup_free_ char *n = NULL;
1147 size_t max_len = MAX(columns(),20u);
1148 size_t len = 0;
1149 int i;
1150
1151 if (!arg_plain) {
1152
1153 for (i = level - 1; i >= 0; i--) {
1154 len += 2;
1155 if(len > max_len - 3 && !arg_full) {
1156 printf("%s...\n",max_len % 2 ? "" : " ");
1157 return 0;
1158 }
1159 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
1160 }
1161 len += 2;
1162
1163 if(len > max_len - 3 && !arg_full) {
1164 printf("%s...\n",max_len % 2 ? "" : " ");
1165 return 0;
1166 }
1167
1168 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
1169 }
1170
1171 if (arg_full){
1172 printf("%s\n", name);
1173 return 0;
1174 }
1175
1176 n = ellipsize(name, max_len-len, 100);
1177 if(!n)
1178 return log_oom();
1179
1180 printf("%s\n", n);
1181 return 0;
1182 }
1183
1184 static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
1185
1186 static const char *dependencies[] = {
1187 [DEPENDENCY_FORWARD] = "Requires\0"
1188 "RequiresOverridable\0"
1189 "Requisite\0"
1190 "RequisiteOverridable\0"
1191 "Wants\0",
1192 [DEPENDENCY_REVERSE] = "RequiredBy\0"
1193 "RequiredByOverridable\0"
1194 "WantedBy\0"
1195 "PartOf\0",
1196 [DEPENDENCY_AFTER] = "After\0",
1197 [DEPENDENCY_BEFORE] = "Before\0",
1198 };
1199
1200 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1201 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1202 _cleanup_strv_free_ char **ret = NULL;
1203 _cleanup_free_ char *path = NULL;
1204 int r;
1205
1206 assert(bus);
1207 assert(name);
1208 assert(deps);
1209 assert(arg_dependency < ELEMENTSOF(dependencies));
1210
1211 path = unit_dbus_path_from_name(name);
1212 if (!path)
1213 return log_oom();
1214
1215 r = sd_bus_call_method(
1216 bus,
1217 "org.freedesktop.systemd1",
1218 path,
1219 "org.freedesktop.DBus.Properties",
1220 "GetAll",
1221 &error,
1222 &reply,
1223 "s", "org.freedesktop.systemd1.Unit");
1224 if (r < 0) {
1225 log_error("Failed to get properties of %s: %s", name, bus_error_message(&error, r));
1226 return r;
1227 }
1228
1229 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
1230 if (r < 0)
1231 return bus_log_parse_error(r);
1232
1233 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
1234 const char *prop;
1235
1236 r = sd_bus_message_read(reply, "s", &prop);
1237 if (r < 0)
1238 return bus_log_parse_error(r);
1239
1240 if (!nulstr_contains(dependencies[arg_dependency], prop)) {
1241 r = sd_bus_message_skip(reply, "v");
1242 if (r < 0)
1243 return bus_log_parse_error(r);
1244 } else {
1245
1246 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as");
1247 if (r < 0)
1248 return bus_log_parse_error(r);
1249
1250 r = bus_message_read_strv_extend(reply, &ret);
1251 if (r < 0)
1252 return bus_log_parse_error(r);
1253
1254 r = sd_bus_message_exit_container(reply);
1255 if (r < 0)
1256 return bus_log_parse_error(r);
1257 }
1258
1259 r = sd_bus_message_exit_container(reply);
1260 if (r < 0)
1261 return bus_log_parse_error(r);
1262
1263 }
1264 if (r < 0)
1265 return bus_log_parse_error(r);
1266
1267 r = sd_bus_message_exit_container(reply);
1268 if (r < 0)
1269 return bus_log_parse_error(r);
1270
1271 *deps = ret;
1272 ret = NULL;
1273
1274 return 0;
1275 }
1276
1277 static int list_dependencies_compare(const void *_a, const void *_b) {
1278 const char **a = (const char**) _a, **b = (const char**) _b;
1279
1280 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1281 return 1;
1282 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1283 return -1;
1284
1285 return strcasecmp(*a, *b);
1286 }
1287
1288 static int list_dependencies_one(
1289 sd_bus *bus,
1290 const char *name,
1291 int level,
1292 char ***units,
1293 unsigned int branches) {
1294
1295 _cleanup_strv_free_ char **deps = NULL, **u;
1296 char **c;
1297 int r = 0;
1298
1299 assert(bus);
1300 assert(name);
1301 assert(units);
1302
1303 u = strv_append(*units, name);
1304 if (!u)
1305 return log_oom();
1306
1307 r = list_dependencies_get_dependencies(bus, name, &deps);
1308 if (r < 0)
1309 return r;
1310
1311 qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1312
1313 STRV_FOREACH(c, deps) {
1314 int state;
1315
1316 if (strv_contains(u, *c)) {
1317 if (!arg_plain) {
1318 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1319 if (r < 0)
1320 return r;
1321 }
1322 continue;
1323 }
1324
1325 state = check_one_unit(bus, *c, "activating\0active\0reloading\0", true);
1326 if (state > 0)
1327 printf("%s%s%s", ansi_highlight_green(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1328 else
1329 printf("%s%s%s", ansi_highlight_red(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1330
1331 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1332 if (r < 0)
1333 return r;
1334
1335 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1336 r = list_dependencies_one(bus, *c, level + 1, &u, (branches << 1) | (c[1] == NULL ? 0 : 1));
1337 if(r < 0)
1338 return r;
1339 }
1340 }
1341
1342 if (arg_plain) {
1343 strv_free(*units);
1344 *units = u;
1345 u = NULL;
1346 }
1347
1348 return 0;
1349 }
1350
1351 static int list_dependencies(sd_bus *bus, char **args) {
1352 _cleanup_strv_free_ char **units = NULL;
1353 _cleanup_free_ char *unit = NULL;
1354 const char *u;
1355
1356 assert(bus);
1357
1358 if (args[1]) {
1359 unit = unit_name_mangle(args[1]);
1360 if (!unit)
1361 return log_oom();
1362 u = unit;
1363 } else
1364 u = SPECIAL_DEFAULT_TARGET;
1365
1366 pager_open_if_enabled();
1367
1368 puts(u);
1369
1370 return list_dependencies_one(bus, u, 0, &units, 0);
1371 }
1372
1373 static int get_default(sd_bus *bus, char **args) {
1374 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1375 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1376 _cleanup_free_ char *_path = NULL;
1377 const char *path;
1378 int r;
1379
1380 if (!bus || avoid_bus()) {
1381 r = unit_file_get_default(arg_scope, arg_root, &_path);
1382 if (r < 0) {
1383 log_error("Failed to get default target: %s", strerror(-r));
1384 return r;
1385 }
1386 path = _path;
1387
1388 } else {
1389 r = sd_bus_call_method(
1390 bus,
1391 "org.freedesktop.systemd1",
1392 "/org/freedesktop/systemd1",
1393 "org.freedesktop.systemd1.Manager",
1394 "GetDefaultTarget",
1395 &error,
1396 &reply,
1397 NULL);
1398 if (r < 0) {
1399 log_error("Failed to get default target: %s", bus_error_message(&error, -r));
1400 return r;
1401 }
1402
1403 r = sd_bus_message_read(reply, "s", &path);
1404 if (r < 0)
1405 return bus_log_parse_error(r);
1406 }
1407
1408 if (path)
1409 printf("%s\n", path);
1410
1411 return 0;
1412 }
1413
1414 static void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_changes) {
1415 unsigned i;
1416
1417 assert(changes || n_changes == 0);
1418
1419 for (i = 0; i < n_changes; i++) {
1420 if (changes[i].type == UNIT_FILE_SYMLINK)
1421 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
1422 else
1423 log_info("rm '%s'", changes[i].path);
1424 }
1425 }
1426
1427 static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) {
1428 const char *type, *path, *source;
1429 int r;
1430
1431 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
1432 if (r < 0)
1433 return bus_log_parse_error(r);
1434
1435 while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
1436 if (!arg_quiet) {
1437 if (streq(type, "symlink"))
1438 log_info("ln -s '%s' '%s'", source, path);
1439 else
1440 log_info("rm '%s'", path);
1441 }
1442 }
1443 if (r < 0)
1444 return bus_log_parse_error(r);
1445
1446 r = sd_bus_message_exit_container(m);
1447 if (r < 0)
1448 return bus_log_parse_error(r);
1449
1450 return 0;
1451 }
1452
1453 static int set_default(sd_bus *bus, char **args) {
1454 _cleanup_free_ char *unit = NULL;
1455 UnitFileChange *changes = NULL;
1456 unsigned n_changes = 0;
1457 int r;
1458
1459 unit = unit_name_mangle_with_suffix(args[1], ".target");
1460 if (!unit)
1461 return log_oom();
1462
1463 if (!bus || avoid_bus()) {
1464 r = unit_file_set_default(arg_scope, arg_root, unit, arg_force, &changes, &n_changes);
1465 if (r < 0) {
1466 log_error("Failed to set default target: %s", strerror(-r));
1467 return r;
1468 }
1469
1470 if (!arg_quiet)
1471 dump_unit_file_changes(changes, n_changes);
1472
1473 r = 0;
1474 } else {
1475 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1476 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1477
1478 r = sd_bus_call_method(
1479 bus,
1480 "org.freedesktop.systemd1",
1481 "/org/freedesktop/systemd1",
1482 "org.freedesktop.systemd1.Manager",
1483 "SetDefaultTarget",
1484 &error,
1485 &reply,
1486 "sb", unit, arg_force);
1487 if (r < 0) {
1488 log_error("Failed to set default target: %s", bus_error_message(&error, -r));
1489 return r;
1490 }
1491
1492 r = deserialize_and_dump_unit_file_changes(reply);
1493 if (r < 0)
1494 return r;
1495
1496 /* Try to reload if enabeld */
1497 if (!arg_no_reload)
1498 r = daemon_reload(bus, args);
1499 else
1500 r = 0;
1501 }
1502
1503 unit_file_changes_free(changes, n_changes);
1504
1505 return r;
1506 }
1507
1508 struct job_info {
1509 uint32_t id;
1510 const char *name, *type, *state;
1511 };
1512
1513 static void output_jobs_list(const struct job_info* jobs, unsigned n) {
1514 unsigned id_len, unit_len, type_len, state_len;
1515 const struct job_info *j;
1516 const char *on, *off;
1517 bool shorten = false;
1518
1519 assert(n == 0 || jobs);
1520
1521 if (n == 0) {
1522 on = ansi_highlight_green();
1523 off = ansi_highlight_off();
1524
1525 printf("%sNo jobs running.%s\n", on, off);
1526 return;
1527 }
1528
1529 pager_open_if_enabled();
1530
1531 id_len = sizeof("JOB")-1;
1532 unit_len = sizeof("UNIT")-1;
1533 type_len = sizeof("TYPE")-1;
1534 state_len = sizeof("STATE")-1;
1535
1536 for (j = jobs; j < jobs + n; j++) {
1537 uint32_t id = j->id;
1538 assert(j->name && j->type && j->state);
1539
1540 id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
1541 unit_len = MAX(unit_len, strlen(j->name));
1542 type_len = MAX(type_len, strlen(j->type));
1543 state_len = MAX(state_len, strlen(j->state));
1544 }
1545
1546 if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
1547 unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
1548 shorten = true;
1549 }
1550
1551 if (!arg_no_legend)
1552 printf("%*s %-*s %-*s %-*s\n",
1553 id_len, "JOB",
1554 unit_len, "UNIT",
1555 type_len, "TYPE",
1556 state_len, "STATE");
1557
1558 for (j = jobs; j < jobs + n; j++) {
1559 _cleanup_free_ char *e = NULL;
1560
1561 if (streq(j->state, "running")) {
1562 on = ansi_highlight();
1563 off = ansi_highlight_off();
1564 } else
1565 on = off = "";
1566
1567 e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
1568 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
1569 id_len, j->id,
1570 on, unit_len, e ? e : j->name, off,
1571 type_len, j->type,
1572 on, state_len, j->state, off);
1573 }
1574
1575 if (!arg_no_legend) {
1576 on = ansi_highlight();
1577 off = ansi_highlight_off();
1578
1579 printf("\n%s%u jobs listed%s.\n", on, n, off);
1580 }
1581 }
1582
1583 static int list_jobs(sd_bus *bus, char **args) {
1584 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1585 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1586 const char *name, *type, *state, *job_path, *unit_path;
1587 _cleanup_free_ struct job_info *jobs = NULL;
1588 size_t size = 0;
1589 unsigned c = 0;
1590 uint32_t id;
1591 int r;
1592
1593 r = sd_bus_call_method(
1594 bus,
1595 "org.freedesktop.systemd1",
1596 "/org/freedesktop/systemd1",
1597 "org.freedesktop.systemd1.Manager",
1598 "ListJobs",
1599 &error,
1600 &reply,
1601 NULL);
1602 if (r < 0) {
1603 log_error("Failed to list jobs: %s", bus_error_message(&error, r));
1604 return r;
1605 }
1606
1607 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
1608 if (r < 0)
1609 return bus_log_parse_error(r);
1610
1611 while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, &job_path, &unit_path)) > 0) {
1612
1613 if (!GREEDY_REALLOC(jobs, size, c + 1))
1614 return log_oom();
1615
1616 jobs[c++] = (struct job_info) {
1617 id,
1618 name,
1619 type,
1620 state
1621 };
1622 }
1623 if (r < 0)
1624 return bus_log_parse_error(r);
1625
1626 r = sd_bus_message_exit_container(reply);
1627 if (r < 0)
1628 return bus_log_parse_error(r);
1629
1630 output_jobs_list(jobs, c);
1631 return r;
1632 }
1633
1634 static int cancel_job(sd_bus *bus, char **args) {
1635 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1636 char **name;
1637
1638 assert(args);
1639
1640 if (strv_length(args) <= 1)
1641 return daemon_reload(bus, args);
1642
1643 STRV_FOREACH(name, args+1) {
1644 uint32_t id;
1645 int r;
1646
1647 r = safe_atou32(*name, &id);
1648 if (r < 0) {
1649 log_error("Failed to parse job id \"%s\": %s", *name, strerror(-r));
1650 return r;
1651 }
1652
1653 r = sd_bus_call_method(
1654 bus,
1655 "org.freedesktop.systemd1",
1656 "/org/freedesktop/systemd1",
1657 "org.freedesktop.systemd1.Manager",
1658 "CancelJob",
1659 &error,
1660 NULL,
1661 "u", id);
1662 if (r < 0) {
1663 log_error("Failed to cancel job %u: %s", (unsigned) id, bus_error_message(&error, r));
1664 return r;
1665 }
1666 }
1667
1668 return 0;
1669 }
1670
1671 static int need_daemon_reload(sd_bus *bus, const char *unit) {
1672 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1673 _cleanup_free_ char *n = NULL;
1674 const char *path;
1675 int b, r;
1676
1677 /* We ignore all errors here, since this is used to show a
1678 * warning only */
1679
1680 n = unit_name_mangle(unit);
1681 if (!n)
1682 return -ENOMEM;
1683
1684 /* We don't use unit_dbus_path_from_name() directly since we
1685 * don't want to load the unit if it isn't loaded. */
1686
1687 r = sd_bus_call_method(
1688 bus,
1689 "org.freedesktop.systemd1",
1690 "/org/freedesktop/systemd1",
1691 "org.freedesktop.systemd1.Manager",
1692 "GetUnit",
1693 NULL,
1694 &reply,
1695 "s", n);
1696 if (r < 0)
1697 return r;
1698
1699 r = sd_bus_message_read(reply, "o", &path);
1700 if (r < 0)
1701 return r;
1702
1703 r = sd_bus_get_property_trivial(
1704 bus,
1705 "org.freedesktop.systemd1",
1706 path,
1707 "org.freedesktop.systemd1.Unit",
1708 "NeedDaemonReload",
1709 NULL,
1710 'b', &b);
1711 if (r < 0)
1712 return r;
1713
1714 return b;
1715 }
1716
1717 typedef struct WaitData {
1718 Set *set;
1719
1720 char *name;
1721 char *result;
1722 } WaitData;
1723
1724 static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data, sd_bus_error *error) {
1725 WaitData *d = data;
1726
1727 assert(bus);
1728 assert(m);
1729 assert(d);
1730
1731 log_debug("Got D-Bus request: %s.%s() on %s",
1732 sd_bus_message_get_interface(m),
1733 sd_bus_message_get_member(m),
1734 sd_bus_message_get_path(m));
1735
1736 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected")) {
1737 log_error("Warning! D-Bus connection terminated.");
1738 sd_bus_close(bus);
1739 } else if (sd_bus_message_is_signal(m, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1740 uint32_t id;
1741 const char *path, *result, *unit;
1742 char *ret;
1743 int r;
1744
1745 r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
1746 if (r >= 0) {
1747 ret = set_remove(d->set, (char*) path);
1748 if (!ret)
1749 return 0;
1750
1751 free(ret);
1752
1753 if (!isempty(result))
1754 d->result = strdup(result);
1755
1756 if (!isempty(unit))
1757 d->name = strdup(unit);
1758
1759 return 0;
1760 }
1761 #ifndef NOLEGACY
1762 r = sd_bus_message_read(m, "uos", &id, &path, &result);
1763 if (r >= 0) {
1764 ret = set_remove(d->set, (char*) path);
1765 if (!ret)
1766 return 0;
1767
1768 free(ret);
1769
1770 if (*result)
1771 d->result = strdup(result);
1772
1773 return 0;
1774 }
1775 #endif
1776
1777 bus_log_parse_error(r);
1778 }
1779
1780 return 0;
1781 }
1782
1783 static int enable_wait_for_jobs(sd_bus *bus) {
1784 int r;
1785
1786 assert(bus);
1787
1788 r = sd_bus_add_match(
1789 bus,
1790 "type='signal',"
1791 "sender='org.freedesktop.systemd1',"
1792 "interface='org.freedesktop.systemd1.Manager',"
1793 "member='JobRemoved',"
1794 "path='/org/freedesktop/systemd1'",
1795 NULL, NULL);
1796 if (r < 0) {
1797 log_error("Failed to add match");
1798 return -EIO;
1799 }
1800
1801 /* This is slightly dirty, since we don't undo the match registrations. */
1802 return 0;
1803 }
1804
1805 static int wait_for_jobs(sd_bus *bus, Set *s) {
1806 WaitData d = { .set = s };
1807 int r;
1808
1809 assert(bus);
1810 assert(s);
1811
1812 r = sd_bus_add_filter(bus, wait_filter, &d);
1813 if (r < 0)
1814 return log_oom();
1815
1816 while (!set_isempty(s)) {
1817 for(;;) {
1818 r = sd_bus_process(bus, NULL);
1819 if (r < 0)
1820 return r;
1821 if (r > 0)
1822 break;
1823 r = sd_bus_wait(bus, (uint64_t) -1);
1824 if (r < 0)
1825 return r;
1826 }
1827
1828 if (!d.result)
1829 goto free_name;
1830
1831 if (!arg_quiet) {
1832 if (streq(d.result, "timeout"))
1833 log_error("Job for %s timed out.", strna(d.name));
1834 else if (streq(d.result, "canceled"))
1835 log_error("Job for %s canceled.", strna(d.name));
1836 else if (streq(d.result, "dependency"))
1837 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d.name));
1838 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1839 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d.name), strna(d.name));
1840 }
1841
1842 if (streq_ptr(d.result, "timeout"))
1843 r = -ETIME;
1844 else if (streq_ptr(d.result, "canceled"))
1845 r = -ECANCELED;
1846 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1847 r = -EIO;
1848
1849 free(d.result);
1850 d.result = NULL;
1851
1852 free_name:
1853 free(d.name);
1854 d.name = NULL;
1855 }
1856
1857 return sd_bus_remove_filter(bus, wait_filter, &d);
1858 }
1859
1860 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) {
1861 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1862 _cleanup_free_ char *n = NULL, *state = NULL;
1863 const char *path;
1864 int r;
1865
1866 assert(name);
1867
1868 n = unit_name_mangle(name);
1869 if (!n)
1870 return log_oom();
1871
1872 /* We don't use unit_dbus_path_from_name() directly since we
1873 * don't want to load the unit if it isn't loaded. */
1874
1875 r = sd_bus_call_method(
1876 bus,
1877 "org.freedesktop.systemd1",
1878 "/org/freedesktop/systemd1",
1879 "org.freedesktop.systemd1.Manager",
1880 "GetUnit",
1881 NULL,
1882 &reply,
1883 "s", n);
1884 if (r < 0) {
1885 if (!quiet)
1886 puts("unknown");
1887 return 0;
1888 }
1889
1890 r = sd_bus_message_read(reply, "o", &path);
1891 if (r < 0)
1892 return bus_log_parse_error(r);
1893
1894 r = sd_bus_get_property_string(
1895 bus,
1896 "org.freedesktop.systemd1",
1897 path,
1898 "org.freedesktop.systemd1.Unit",
1899 "ActiveState",
1900 NULL,
1901 &state);
1902 if (r < 0) {
1903 if (!quiet)
1904 puts("unknown");
1905 return 0;
1906 }
1907
1908 if (!quiet)
1909 puts(state);
1910
1911 return nulstr_contains(good_states, state);
1912 }
1913
1914 static int check_triggering_units(
1915 sd_bus *bus,
1916 const char *name) {
1917
1918 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1919 _cleanup_free_ char *path = NULL, *n = NULL, *state = NULL;
1920 _cleanup_strv_free_ char **triggered_by = NULL;
1921 bool print_warning_label = true;
1922 char **i;
1923 int r;
1924
1925 n = unit_name_mangle(name);
1926 if (!n)
1927 return log_oom();
1928
1929 path = unit_dbus_path_from_name(n);
1930 if (!path)
1931 return log_oom();
1932
1933 r = sd_bus_get_property_string(
1934 bus,
1935 "org.freedesktop.systemd1",
1936 path,
1937 "org.freedesktop.systemd1.Unit",
1938 "LoadState",
1939 &error,
1940 &state);
1941 if (r < 0) {
1942 log_error("Failed to get load state of %s: %s", n, bus_error_message(&error, r));
1943 return r;
1944 }
1945
1946 if (streq(state, "masked"))
1947 return 0;
1948
1949 r = sd_bus_get_property_strv(
1950 bus,
1951 "org.freedesktop.systemd1",
1952 path,
1953 "org.freedesktop.systemd1.Unit",
1954 "TriggeredBy",
1955 &error,
1956 &triggered_by);
1957 if (r < 0) {
1958 log_error("Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
1959 return r;
1960 }
1961
1962 STRV_FOREACH(i, triggered_by) {
1963 r = check_one_unit(bus, *i, "active\0reloading\0", true);
1964 if (r < 0) {
1965 log_error("Failed to check unit: %s", strerror(-r));
1966 return r;
1967 }
1968
1969 if (r == 0)
1970 continue;
1971
1972 if (print_warning_label) {
1973 log_warning("Warning: Stopping %s, but it can still be activated by:", n);
1974 print_warning_label = false;
1975 }
1976
1977 log_warning(" %s", *i);
1978 }
1979
1980 return 0;
1981 }
1982
1983 static int start_unit_one(
1984 sd_bus *bus,
1985 const char *method,
1986 const char *name,
1987 const char *mode,
1988 sd_bus_error *error,
1989 Set *s) {
1990
1991 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1992 _cleanup_free_ char *n;
1993 const char *path;
1994 int r;
1995
1996 assert(method);
1997 assert(name);
1998 assert(mode);
1999 assert(error);
2000
2001 n = unit_name_mangle(name);
2002 if (!n)
2003 return log_oom();
2004
2005 r = sd_bus_call_method(
2006 bus,
2007 "org.freedesktop.systemd1",
2008 "/org/freedesktop/systemd1",
2009 "org.freedesktop.systemd1.Manager",
2010 method,
2011 error,
2012 &reply,
2013 "ss", n, mode);
2014 if (r < 0) {
2015 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
2016 /* There's always a fallback possible for
2017 * legacy actions. */
2018 return -EADDRNOTAVAIL;
2019
2020 log_error("Failed to start %s: %s", name, bus_error_message(error, r));
2021 return r;
2022 }
2023
2024 r = sd_bus_message_read(reply, "o", &path);
2025 if (r < 0)
2026 return bus_log_parse_error(r);
2027
2028 if (need_daemon_reload(bus, n) > 0)
2029 log_warning("Warning: Unit file of %s changed on disk, 'systemctl%s daemon-reload' recommended.",
2030 n, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
2031
2032 if (s) {
2033 char *p;
2034
2035 p = strdup(path);
2036 if (!p)
2037 return log_oom();
2038
2039 r = set_consume(s, p);
2040 if (r < 0)
2041 return log_oom();
2042 }
2043
2044 return 0;
2045 }
2046
2047 static const struct {
2048 const char *target;
2049 const char *verb;
2050 const char *mode;
2051 } action_table[_ACTION_MAX] = {
2052 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
2053 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
2054 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
2055 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
2056 [ACTION_RUNLEVEL2] = { SPECIAL_RUNLEVEL2_TARGET, NULL, "isolate" },
2057 [ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
2058 [ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
2059 [ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_TARGET, NULL, "isolate" },
2060 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
2061 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
2062 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
2063 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
2064 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
2065 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
2066 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
2067 };
2068
2069 static enum action verb_to_action(const char *verb) {
2070 enum action i;
2071
2072 for (i = _ACTION_INVALID; i < _ACTION_MAX; i++)
2073 if (streq_ptr(action_table[i].verb, verb))
2074 return i;
2075
2076 return _ACTION_INVALID;
2077 }
2078
2079 static int start_unit(sd_bus *bus, char **args) {
2080 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2081 _cleanup_set_free_free_ Set *s = NULL;
2082 const char *method, *mode, *one_name;
2083 char **name;
2084 int r;
2085
2086 assert(bus);
2087
2088 ask_password_agent_open_if_enabled();
2089
2090 if (arg_action == ACTION_SYSTEMCTL) {
2091 enum action action;
2092 method =
2093 streq(args[0], "stop") ||
2094 streq(args[0], "condstop") ? "StopUnit" :
2095 streq(args[0], "reload") ? "ReloadUnit" :
2096 streq(args[0], "restart") ? "RestartUnit" :
2097
2098 streq(args[0], "try-restart") ||
2099 streq(args[0], "condrestart") ? "TryRestartUnit" :
2100
2101 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
2102
2103 streq(args[0], "reload-or-try-restart") ||
2104 streq(args[0], "condreload") ||
2105 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
2106 "StartUnit";
2107 action = verb_to_action(args[0]);
2108
2109 mode = streq(args[0], "isolate") ? "isolate" :
2110 action_table[action].mode ?: arg_job_mode;
2111
2112 one_name = action_table[action].target;
2113 } else {
2114 assert(arg_action < ELEMENTSOF(action_table));
2115 assert(action_table[arg_action].target);
2116
2117 method = "StartUnit";
2118
2119 mode = action_table[arg_action].mode;
2120 one_name = action_table[arg_action].target;
2121 }
2122
2123 if (!arg_no_block) {
2124 r = enable_wait_for_jobs(bus);
2125 if (r < 0) {
2126 log_error("Could not watch jobs: %s", strerror(-r));
2127 return r;
2128 }
2129
2130 s = set_new(string_hash_func, string_compare_func);
2131 if (!s)
2132 return log_oom();
2133 }
2134
2135 if (one_name) {
2136 r = start_unit_one(bus, method, one_name, mode, &error, s);
2137 if (r < 0)
2138 r = translate_bus_error_to_exit_status(r, &error);
2139 } else {
2140 r = 0;
2141
2142 STRV_FOREACH(name, args+1) {
2143 int q;
2144
2145 q = start_unit_one(bus, method, *name, mode, &error, s);
2146 if (q < 0) {
2147 r = translate_bus_error_to_exit_status(r, &error);
2148 sd_bus_error_free(&error);
2149 }
2150 }
2151 }
2152
2153 if (!arg_no_block) {
2154 int q;
2155
2156 q = wait_for_jobs(bus, s);
2157 if (q < 0)
2158 return q;
2159
2160 /* When stopping units, warn if they can still be triggered by
2161 * another active unit (socket, path, timer) */
2162 if (!arg_quiet && streq(method, "StopUnit")) {
2163 if (one_name)
2164 check_triggering_units(bus, one_name);
2165 else
2166 STRV_FOREACH(name, args+1)
2167 check_triggering_units(bus, *name);
2168 }
2169 }
2170
2171 return r;
2172 }
2173
2174 /* Ask systemd-logind, which might grant access to unprivileged users
2175 * through PolicyKit */
2176 static int reboot_with_logind(sd_bus *bus, enum action a) {
2177 #ifdef HAVE_LOGIND
2178 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2179 const char *method;
2180 int r;
2181
2182 if (!bus)
2183 return -EIO;
2184
2185 polkit_agent_open_if_enabled();
2186
2187 switch (a) {
2188
2189 case ACTION_REBOOT:
2190 method = "Reboot";
2191 break;
2192
2193 case ACTION_POWEROFF:
2194 method = "PowerOff";
2195 break;
2196
2197 case ACTION_SUSPEND:
2198 method = "Suspend";
2199 break;
2200
2201 case ACTION_HIBERNATE:
2202 method = "Hibernate";
2203 break;
2204
2205 case ACTION_HYBRID_SLEEP:
2206 method = "HybridSleep";
2207 break;
2208
2209 default:
2210 return -EINVAL;
2211 }
2212
2213 r = sd_bus_call_method(
2214 bus,
2215 "org.freedesktop.login1",
2216 "/org/freedesktop/login1",
2217 "org.freedesktop.login1.Manager",
2218 method,
2219 &error,
2220 NULL,
2221 "b", true);
2222 if (r < 0)
2223 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
2224
2225 return r;
2226 #else
2227 return -ENOSYS;
2228 #endif
2229 }
2230
2231 static int check_inhibitors(sd_bus *bus, enum action a) {
2232 #ifdef HAVE_LOGIND
2233 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2234 _cleanup_strv_free_ char **sessions = NULL;
2235 const char *what, *who, *why, *mode;
2236 uint32_t uid, pid;
2237 unsigned c = 0;
2238 char **s;
2239 int r;
2240
2241 if (!bus)
2242 return 0;
2243
2244 if (arg_ignore_inhibitors || arg_force > 0)
2245 return 0;
2246
2247 if (arg_when > 0)
2248 return 0;
2249
2250 if (geteuid() == 0)
2251 return 0;
2252
2253 if (!on_tty())
2254 return 0;
2255
2256 r = sd_bus_call_method(
2257 bus,
2258 "org.freedesktop.login1",
2259 "/org/freedesktop/login1",
2260 "org.freedesktop.login1.Manager",
2261 "ListInhibitors",
2262 NULL,
2263 &reply,
2264 NULL);
2265 if (r < 0)
2266 /* If logind is not around, then there are no inhibitors... */
2267 return 0;
2268
2269 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
2270 if (r < 0)
2271 return bus_log_parse_error(r);
2272
2273 while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
2274 _cleanup_free_ char *comm = NULL, *user = NULL;
2275 _cleanup_strv_free_ char **sv = NULL;
2276
2277 if (!streq(mode, "block"))
2278 continue;
2279
2280 sv = strv_split(what, ":");
2281 if (!sv)
2282 return log_oom();
2283
2284 if (!strv_contains(sv,
2285 a == ACTION_HALT ||
2286 a == ACTION_POWEROFF ||
2287 a == ACTION_REBOOT ||
2288 a == ACTION_KEXEC ? "shutdown" : "sleep"))
2289 continue;
2290
2291 get_process_comm(pid, &comm);
2292 user = uid_to_name(uid);
2293
2294 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
2295 who, (unsigned long) pid, strna(comm), strna(user), why);
2296
2297 c++;
2298 }
2299 if (r < 0)
2300 return bus_log_parse_error(r);
2301
2302 r = sd_bus_message_exit_container(reply);
2303 if (r < 0)
2304 return bus_log_parse_error(r);
2305
2306 /* Check for current sessions */
2307 sd_get_sessions(&sessions);
2308 STRV_FOREACH(s, sessions) {
2309 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
2310
2311 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
2312 continue;
2313
2314 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
2315 continue;
2316
2317 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
2318 continue;
2319
2320 sd_session_get_tty(*s, &tty);
2321 sd_session_get_seat(*s, &seat);
2322 sd_session_get_service(*s, &service);
2323 user = uid_to_name(uid);
2324
2325 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
2326 c++;
2327 }
2328
2329 if (c <= 0)
2330 return 0;
2331
2332 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
2333 action_table[a].verb);
2334
2335 return -EPERM;
2336 #else
2337 return 0;
2338 #endif
2339 }
2340
2341 static int start_special(sd_bus *bus, char **args) {
2342 enum action a;
2343 int r;
2344
2345 assert(args);
2346
2347 a = verb_to_action(args[0]);
2348
2349 r = check_inhibitors(bus, a);
2350 if (r < 0)
2351 return r;
2352
2353 if (arg_force >= 2 && geteuid() != 0) {
2354 log_error("Must be root.");
2355 return -EPERM;
2356 }
2357
2358 if (arg_force >= 2 &&
2359 (a == ACTION_HALT ||
2360 a == ACTION_POWEROFF ||
2361 a == ACTION_REBOOT))
2362 return halt_now(a);
2363
2364 if (arg_force >= 1 &&
2365 (a == ACTION_HALT ||
2366 a == ACTION_POWEROFF ||
2367 a == ACTION_REBOOT ||
2368 a == ACTION_KEXEC ||
2369 a == ACTION_EXIT))
2370 return daemon_reload(bus, args);
2371
2372 /* first try logind, to allow authentication with polkit */
2373 if (geteuid() != 0 &&
2374 (a == ACTION_POWEROFF ||
2375 a == ACTION_REBOOT ||
2376 a == ACTION_SUSPEND ||
2377 a == ACTION_HIBERNATE ||
2378 a == ACTION_HYBRID_SLEEP)) {
2379 r = reboot_with_logind(bus, a);
2380 if (r >= 0)
2381 return r;
2382 }
2383
2384 r = start_unit(bus, args);
2385 if (r == EXIT_SUCCESS)
2386 warn_wall(a);
2387
2388 return r;
2389 }
2390
2391 static int check_unit_active(sd_bus *bus, char **args) {
2392 char **name;
2393 int r = 3; /* According to LSB: "program is not running" */
2394
2395 assert(bus);
2396 assert(args);
2397
2398 STRV_FOREACH(name, args+1) {
2399 int state;
2400
2401 state = check_one_unit(bus, *name, "active\0reloading\0", arg_quiet);
2402 if (state < 0)
2403 return state;
2404 if (state > 0)
2405 r = 0;
2406 }
2407
2408 return r;
2409 }
2410
2411 static int check_unit_failed(sd_bus *bus, char **args) {
2412 char **name;
2413 int r = 1;
2414
2415 assert(bus);
2416 assert(args);
2417
2418 STRV_FOREACH(name, args+1) {
2419 int state;
2420
2421 state = check_one_unit(bus, *name, "failed\0", arg_quiet);
2422 if (state < 0)
2423 return state;
2424 if (state > 0)
2425 r = 0;
2426 }
2427
2428 return r;
2429 }
2430
2431 static int kill_unit(sd_bus *bus, char **args) {
2432 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2433 char **name;
2434 int r = 0;
2435
2436 assert(bus);
2437 assert(args);
2438
2439 if (!arg_kill_who)
2440 arg_kill_who = "all";
2441
2442 STRV_FOREACH(name, args+1) {
2443 _cleanup_free_ char *n = NULL;
2444
2445 n = unit_name_mangle(*name);
2446 if (!n)
2447 return log_oom();
2448
2449 r = sd_bus_call_method(
2450 bus,
2451 "org.freedesktop.systemd1",
2452 "/org/freedesktop/systemd1",
2453 "org.freedesktop.systemd1.Manager",
2454 "KillUnit",
2455 &error,
2456 NULL,
2457 "ssi", n, arg_kill_who, arg_signal);
2458 if (r < 0) {
2459 log_error("Failed to kill unit %s: %s", n, bus_error_message(&error, r));
2460 return r;
2461 }
2462 }
2463
2464 return 0;
2465 }
2466
2467 typedef struct ExecStatusInfo {
2468 char *name;
2469
2470 char *path;
2471 char **argv;
2472
2473 bool ignore;
2474
2475 usec_t start_timestamp;
2476 usec_t exit_timestamp;
2477 pid_t pid;
2478 int code;
2479 int status;
2480
2481 LIST_FIELDS(struct ExecStatusInfo, exec);
2482 } ExecStatusInfo;
2483
2484 static void exec_status_info_free(ExecStatusInfo *i) {
2485 assert(i);
2486
2487 free(i->name);
2488 free(i->path);
2489 strv_free(i->argv);
2490 free(i);
2491 }
2492
2493 static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
2494 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2495 const char *path;
2496 uint32_t pid;
2497 int32_t code, status;
2498 int ignore, r;
2499
2500 assert(m);
2501 assert(i);
2502
2503 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
2504 if (r < 0)
2505 return bus_log_parse_error(r);
2506 else if (r == 0)
2507 return 0;
2508
2509 r = sd_bus_message_read(m, "s", &path);
2510 if (r < 0)
2511 return bus_log_parse_error(r);
2512
2513 i->path = strdup(path);
2514 if (!i->path)
2515 return log_oom();
2516
2517 r = sd_bus_message_read_strv(m, &i->argv);
2518 if (r < 0)
2519 return bus_log_parse_error(r);
2520
2521 r = sd_bus_message_read(m,
2522 "bttttuii",
2523 &ignore,
2524 &start_timestamp, &start_timestamp_monotonic,
2525 &exit_timestamp, &exit_timestamp_monotonic,
2526 &pid,
2527 &code, &status);
2528 if (r < 0)
2529 return bus_log_parse_error(r);
2530
2531 i->ignore = ignore;
2532 i->start_timestamp = (usec_t) start_timestamp;
2533 i->exit_timestamp = (usec_t) exit_timestamp;
2534 i->pid = (pid_t) pid;
2535 i->code = code;
2536 i->status = status;
2537
2538 r = sd_bus_message_exit_container(m);
2539 if (r < 0)
2540 return bus_log_parse_error(r);
2541
2542 return 1;
2543 }
2544
2545 typedef struct UnitStatusInfo {
2546 const char *id;
2547 const char *load_state;
2548 const char *active_state;
2549 const char *sub_state;
2550 const char *unit_file_state;
2551
2552 const char *description;
2553 const char *following;
2554
2555 char **documentation;
2556
2557 const char *fragment_path;
2558 const char *source_path;
2559 const char *control_group;
2560
2561 char **dropin_paths;
2562
2563 const char *load_error;
2564 const char *result;
2565
2566 usec_t inactive_exit_timestamp;
2567 usec_t inactive_exit_timestamp_monotonic;
2568 usec_t active_enter_timestamp;
2569 usec_t active_exit_timestamp;
2570 usec_t inactive_enter_timestamp;
2571
2572 bool need_daemon_reload;
2573
2574 /* Service */
2575 pid_t main_pid;
2576 pid_t control_pid;
2577 const char *status_text;
2578 const char *pid_file;
2579 bool running:1;
2580
2581 usec_t start_timestamp;
2582 usec_t exit_timestamp;
2583
2584 int exit_code, exit_status;
2585
2586 usec_t condition_timestamp;
2587 bool condition_result;
2588 bool failed_condition_trigger;
2589 bool failed_condition_negate;
2590 const char *failed_condition;
2591 const char *failed_condition_param;
2592
2593 /* Socket */
2594 unsigned n_accepted;
2595 unsigned n_connections;
2596 bool accept;
2597
2598 /* Pairs of type, path */
2599 char **listen;
2600
2601 /* Device */
2602 const char *sysfs_path;
2603
2604 /* Mount, Automount */
2605 const char *where;
2606
2607 /* Swap */
2608 const char *what;
2609
2610 LIST_HEAD(ExecStatusInfo, exec);
2611 } UnitStatusInfo;
2612
2613 static void print_status_info(
2614 UnitStatusInfo *i,
2615 bool *ellipsized) {
2616
2617 ExecStatusInfo *p;
2618 const char *on, *off, *ss;
2619 usec_t timestamp;
2620 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2621 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2622 const char *path;
2623 int flags =
2624 arg_all * OUTPUT_SHOW_ALL |
2625 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2626 on_tty() * OUTPUT_COLOR |
2627 !arg_quiet * OUTPUT_WARN_CUTOFF |
2628 arg_full * OUTPUT_FULL_WIDTH;
2629 char **t, **t2;
2630
2631 assert(i);
2632
2633 /* This shows pretty information about a unit. See
2634 * print_property() for a low-level property printer */
2635
2636 printf("%s", strna(i->id));
2637
2638 if (i->description && !streq_ptr(i->id, i->description))
2639 printf(" - %s", i->description);
2640
2641 printf("\n");
2642
2643 if (i->following)
2644 printf(" Follow: unit currently follows state of %s\n", i->following);
2645
2646 if (streq_ptr(i->load_state, "error")) {
2647 on = ansi_highlight_red();
2648 off = ansi_highlight_off();
2649 } else
2650 on = off = "";
2651
2652 path = i->source_path ? i->source_path : i->fragment_path;
2653
2654 if (i->load_error)
2655 printf(" Loaded: %s%s%s (Reason: %s)\n",
2656 on, strna(i->load_state), off, i->load_error);
2657 else if (path && i->unit_file_state)
2658 printf(" Loaded: %s%s%s (%s; %s)\n",
2659 on, strna(i->load_state), off, path, i->unit_file_state);
2660 else if (path)
2661 printf(" Loaded: %s%s%s (%s)\n",
2662 on, strna(i->load_state), off, path);
2663 else
2664 printf(" Loaded: %s%s%s\n",
2665 on, strna(i->load_state), off);
2666
2667 if (!strv_isempty(i->dropin_paths)) {
2668 _cleanup_free_ char *dir = NULL;
2669 bool last = false;
2670 char ** dropin;
2671
2672 STRV_FOREACH(dropin, i->dropin_paths) {
2673 if (! dir || last) {
2674 printf(dir ? " " : " Drop-In: ");
2675
2676 free(dir);
2677 dir = NULL;
2678
2679 if (path_get_parent(*dropin, &dir) < 0) {
2680 log_oom();
2681 return;
2682 }
2683
2684 printf("%s\n %s", dir,
2685 draw_special_char(DRAW_TREE_RIGHT));
2686 }
2687
2688 last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
2689
2690 printf("%s%s", path_get_file_name(*dropin), last ? "\n" : ", ");
2691 }
2692 }
2693
2694 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2695
2696 if (streq_ptr(i->active_state, "failed")) {
2697 on = ansi_highlight_red();
2698 off = ansi_highlight_off();
2699 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2700 on = ansi_highlight_green();
2701 off = ansi_highlight_off();
2702 } else
2703 on = off = "";
2704
2705 if (ss)
2706 printf(" Active: %s%s (%s)%s",
2707 on, strna(i->active_state), ss, off);
2708 else
2709 printf(" Active: %s%s%s",
2710 on, strna(i->active_state), off);
2711
2712 if (!isempty(i->result) && !streq(i->result, "success"))
2713 printf(" (Result: %s)", i->result);
2714
2715 timestamp = (streq_ptr(i->active_state, "active") ||
2716 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2717 (streq_ptr(i->active_state, "inactive") ||
2718 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2719 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2720 i->active_exit_timestamp;
2721
2722 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2723 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2724
2725 if (s1)
2726 printf(" since %s; %s\n", s2, s1);
2727 else if (s2)
2728 printf(" since %s\n", s2);
2729 else
2730 printf("\n");
2731
2732 if (!i->condition_result && i->condition_timestamp > 0) {
2733 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2734 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2735
2736 printf(" start condition failed at %s%s%s\n",
2737 s2, s1 ? "; " : "", s1 ? s1 : "");
2738 if (i->failed_condition_trigger)
2739 printf(" none of the trigger conditions were met\n");
2740 else if (i->failed_condition)
2741 printf(" %s=%s%s was not met\n",
2742 i->failed_condition,
2743 i->failed_condition_negate ? "!" : "",
2744 i->failed_condition_param);
2745 }
2746
2747 if (i->sysfs_path)
2748 printf(" Device: %s\n", i->sysfs_path);
2749 if (i->where)
2750 printf(" Where: %s\n", i->where);
2751 if (i->what)
2752 printf(" What: %s\n", i->what);
2753
2754 STRV_FOREACH(t, i->documentation)
2755 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
2756
2757 STRV_FOREACH_PAIR(t, t2, i->listen)
2758 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
2759
2760 if (i->accept)
2761 printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2762
2763 LIST_FOREACH(exec, p, i->exec) {
2764 _cleanup_free_ char *argv = NULL;
2765 bool good;
2766
2767 /* Only show exited processes here */
2768 if (p->code == 0)
2769 continue;
2770
2771 argv = strv_join(p->argv, " ");
2772 printf(" Process: %u %s=%s ", p->pid, p->name, strna(argv));
2773
2774 good = is_clean_exit_lsb(p->code, p->status, NULL);
2775 if (!good) {
2776 on = ansi_highlight_red();
2777 off = ansi_highlight_off();
2778 } else
2779 on = off = "";
2780
2781 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2782
2783 if (p->code == CLD_EXITED) {
2784 const char *c;
2785
2786 printf("status=%i", p->status);
2787
2788 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2789 if (c)
2790 printf("/%s", c);
2791
2792 } else
2793 printf("signal=%s", signal_to_string(p->status));
2794
2795 printf(")%s\n", off);
2796
2797 if (i->main_pid == p->pid &&
2798 i->start_timestamp == p->start_timestamp &&
2799 i->exit_timestamp == p->start_timestamp)
2800 /* Let's not show this twice */
2801 i->main_pid = 0;
2802
2803 if (p->pid == i->control_pid)
2804 i->control_pid = 0;
2805 }
2806
2807 if (i->main_pid > 0 || i->control_pid > 0) {
2808 if (i->main_pid > 0) {
2809 printf(" Main PID: %u", (unsigned) i->main_pid);
2810
2811 if (i->running) {
2812 _cleanup_free_ char *comm = NULL;
2813 get_process_comm(i->main_pid, &comm);
2814 if (comm)
2815 printf(" (%s)", comm);
2816 } else if (i->exit_code > 0) {
2817 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2818
2819 if (i->exit_code == CLD_EXITED) {
2820 const char *c;
2821
2822 printf("status=%i", i->exit_status);
2823
2824 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2825 if (c)
2826 printf("/%s", c);
2827
2828 } else
2829 printf("signal=%s", signal_to_string(i->exit_status));
2830 printf(")");
2831 }
2832
2833 if (i->control_pid > 0)
2834 printf(";");
2835 }
2836
2837 if (i->control_pid > 0) {
2838 _cleanup_free_ char *c = NULL;
2839
2840 printf(" %8s: %u", i->main_pid ? "" : " Control", (unsigned) i->control_pid);
2841
2842 get_process_comm(i->control_pid, &c);
2843 if (c)
2844 printf(" (%s)", c);
2845 }
2846
2847 printf("\n");
2848 }
2849
2850 if (i->status_text)
2851 printf(" Status: \"%s\"\n", i->status_text);
2852
2853 if (i->control_group &&
2854 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, i->control_group, false) == 0)) {
2855 unsigned c;
2856
2857 printf(" CGroup: %s\n", i->control_group);
2858
2859 if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_CONTAINER) {
2860 unsigned k = 0;
2861 pid_t extra[2];
2862 char prefix[] = " ";
2863
2864 c = columns();
2865 if (c > sizeof(prefix) - 1)
2866 c -= sizeof(prefix) - 1;
2867 else
2868 c = 0;
2869
2870 if (i->main_pid > 0)
2871 extra[k++] = i->main_pid;
2872
2873 if (i->control_pid > 0)
2874 extra[k++] = i->control_pid;
2875
2876 show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix,
2877 c, false, extra, k, flags);
2878 }
2879 }
2880
2881 if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) {
2882 printf("\n");
2883 show_journal_by_unit(stdout,
2884 i->id,
2885 arg_output,
2886 0,
2887 i->inactive_exit_timestamp_monotonic,
2888 arg_lines,
2889 getuid(),
2890 flags,
2891 arg_scope == UNIT_FILE_SYSTEM,
2892 ellipsized);
2893 }
2894
2895 if (i->need_daemon_reload)
2896 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %sdaemon-reload' recommended.\n",
2897 ansi_highlight_red(),
2898 ansi_highlight_off(),
2899 arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
2900 }
2901
2902 static void show_unit_help(UnitStatusInfo *i) {
2903 char **p;
2904
2905 assert(i);
2906
2907 if (!i->documentation) {
2908 log_info("Documentation for %s not known.", i->id);
2909 return;
2910 }
2911
2912 STRV_FOREACH(p, i->documentation) {
2913
2914 if (startswith(*p, "man:")) {
2915 const char *args[4] = { "man", NULL, NULL, NULL };
2916 _cleanup_free_ char *page = NULL, *section = NULL;
2917 char *e = NULL;
2918 pid_t pid;
2919 size_t k;
2920
2921 k = strlen(*p);
2922
2923 if ((*p)[k-1] == ')')
2924 e = strrchr(*p, '(');
2925
2926 if (e) {
2927 page = strndup((*p) + 4, e - *p - 4);
2928 section = strndup(e + 1, *p + k - e - 2);
2929 if (!page || !section) {
2930 log_oom();
2931 return;
2932 }
2933
2934 args[1] = section;
2935 args[2] = page;
2936 } else
2937 args[1] = *p + 4;
2938
2939 pid = fork();
2940 if (pid < 0) {
2941 log_error("Failed to fork: %m");
2942 continue;
2943 }
2944
2945 if (pid == 0) {
2946 /* Child */
2947 execvp(args[0], (char**) args);
2948 log_error("Failed to execute man: %m");
2949 _exit(EXIT_FAILURE);
2950 }
2951
2952 wait_for_terminate(pid, NULL);
2953 } else
2954 log_info("Can't show: %s", *p);
2955 }
2956 }
2957
2958 static int status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) {
2959 int r;
2960
2961 assert(name);
2962 assert(m);
2963 assert(i);
2964
2965 switch (contents[0]) {
2966
2967 case SD_BUS_TYPE_STRING: {
2968 const char *s;
2969
2970 r = sd_bus_message_read(m, "s", &s);
2971 if (r < 0)
2972 return bus_log_parse_error(r);
2973
2974 if (!isempty(s)) {
2975 if (streq(name, "Id"))
2976 i->id = s;
2977 else if (streq(name, "LoadState"))
2978 i->load_state = s;
2979 else if (streq(name, "ActiveState"))
2980 i->active_state = s;
2981 else if (streq(name, "SubState"))
2982 i->sub_state = s;
2983 else if (streq(name, "Description"))
2984 i->description = s;
2985 else if (streq(name, "FragmentPath"))
2986 i->fragment_path = s;
2987 else if (streq(name, "SourcePath"))
2988 i->source_path = s;
2989 #ifndef NOLEGACY
2990 else if (streq(name, "DefaultControlGroup")) {
2991 const char *e;
2992 e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
2993 if (e)
2994 i->control_group = e;
2995 }
2996 #endif
2997 else if (streq(name, "ControlGroup"))
2998 i->control_group = s;
2999 else if (streq(name, "StatusText"))
3000 i->status_text = s;
3001 else if (streq(name, "PIDFile"))
3002 i->pid_file = s;
3003 else if (streq(name, "SysFSPath"))
3004 i->sysfs_path = s;
3005 else if (streq(name, "Where"))
3006 i->where = s;
3007 else if (streq(name, "What"))
3008 i->what = s;
3009 else if (streq(name, "Following"))
3010 i->following = s;
3011 else if (streq(name, "UnitFileState"))
3012 i->unit_file_state = s;
3013 else if (streq(name, "Result"))
3014 i->result = s;
3015 }
3016
3017 break;
3018 }
3019
3020 case SD_BUS_TYPE_BOOLEAN: {
3021 int b;
3022
3023 r = sd_bus_message_read(m, "b", &b);
3024 if (r < 0)
3025 return bus_log_parse_error(r);
3026
3027 if (streq(name, "Accept"))
3028 i->accept = b;
3029 else if (streq(name, "NeedDaemonReload"))
3030 i->need_daemon_reload = b;
3031 else if (streq(name, "ConditionResult"))
3032 i->condition_result = b;
3033
3034 break;
3035 }
3036
3037 case SD_BUS_TYPE_UINT32: {
3038 uint32_t u;
3039
3040 r = sd_bus_message_read(m, "u", &u);
3041 if (r < 0)
3042 return bus_log_parse_error(r);
3043
3044 if (streq(name, "MainPID")) {
3045 if (u > 0) {
3046 i->main_pid = (pid_t) u;
3047 i->running = true;
3048 }
3049 } else if (streq(name, "ControlPID"))
3050 i->control_pid = (pid_t) u;
3051 else if (streq(name, "ExecMainPID")) {
3052 if (u > 0)
3053 i->main_pid = (pid_t) u;
3054 } else if (streq(name, "NAccepted"))
3055 i->n_accepted = u;
3056 else if (streq(name, "NConnections"))
3057 i->n_connections = u;
3058
3059 break;
3060 }
3061
3062 case SD_BUS_TYPE_INT32: {
3063 int32_t j;
3064
3065 r = sd_bus_message_read(m, "i", &j);
3066 if (r < 0)
3067 return bus_log_parse_error(r);
3068
3069 if (streq(name, "ExecMainCode"))
3070 i->exit_code = (int) j;
3071 else if (streq(name, "ExecMainStatus"))
3072 i->exit_status = (int) j;
3073
3074 break;
3075 }
3076
3077 case SD_BUS_TYPE_UINT64: {
3078 uint64_t u;
3079
3080 r = sd_bus_message_read(m, "t", &u);
3081 if (r < 0)
3082 return bus_log_parse_error(r);
3083
3084 if (streq(name, "ExecMainStartTimestamp"))
3085 i->start_timestamp = (usec_t) u;
3086 else if (streq(name, "ExecMainExitTimestamp"))
3087 i->exit_timestamp = (usec_t) u;
3088 else if (streq(name, "ActiveEnterTimestamp"))
3089 i->active_enter_timestamp = (usec_t) u;
3090 else if (streq(name, "InactiveEnterTimestamp"))
3091 i->inactive_enter_timestamp = (usec_t) u;
3092 else if (streq(name, "InactiveExitTimestamp"))
3093 i->inactive_exit_timestamp = (usec_t) u;
3094 else if (streq(name, "InactiveExitTimestampMonotonic"))
3095 i->inactive_exit_timestamp_monotonic = (usec_t) u;
3096 else if (streq(name, "ActiveExitTimestamp"))
3097 i->active_exit_timestamp = (usec_t) u;
3098 else if (streq(name, "ConditionTimestamp"))
3099 i->condition_timestamp = (usec_t) u;
3100
3101 break;
3102 }
3103
3104 case SD_BUS_TYPE_ARRAY:
3105
3106 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3107 _cleanup_free_ ExecStatusInfo *info = NULL;
3108
3109 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3110 if (r < 0)
3111 return bus_log_parse_error(r);
3112
3113 info = new0(ExecStatusInfo, 1);
3114 if (!info)
3115 return log_oom();
3116
3117 while ((r = exec_status_info_deserialize(m, info)) > 0) {
3118
3119 info->name = strdup(name);
3120 if (!info->name)
3121 log_oom();
3122
3123 LIST_PREPEND(exec, i->exec, info);
3124
3125 info = new0(ExecStatusInfo, 1);
3126 if (!info)
3127 log_oom();
3128 }
3129
3130 if (r < 0)
3131 return bus_log_parse_error(r);
3132
3133 r = sd_bus_message_exit_container(m);
3134 if (r < 0)
3135 return bus_log_parse_error(r);
3136
3137 return 0;
3138
3139 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3140 const char *type, *path;
3141
3142 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3143 if (r < 0)
3144 return bus_log_parse_error(r);
3145
3146 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) {
3147
3148 r = strv_extend(&i->listen, type);
3149 if (r < 0)
3150 return r;
3151
3152 r = strv_extend(&i->listen, path);
3153 if (r < 0)
3154 return r;
3155 }
3156 if (r < 0)
3157 return bus_log_parse_error(r);
3158
3159 r = sd_bus_message_exit_container(m);
3160 if (r < 0)
3161 return bus_log_parse_error(r);
3162
3163 return 0;
3164
3165 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "DropInPaths")) {
3166
3167 r = sd_bus_message_read_strv(m, &i->dropin_paths);
3168 if (r < 0)
3169 return bus_log_parse_error(r);
3170
3171 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Documentation")) {
3172
3173 r = sd_bus_message_read_strv(m, &i->documentation);
3174 if (r < 0)
3175 return bus_log_parse_error(r);
3176
3177 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Conditions")) {
3178 const char *cond, *param;
3179 int trigger, negate;
3180 int32_t state;
3181
3182 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
3183 if (r < 0)
3184 return bus_log_parse_error(r);
3185
3186 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
3187 log_debug("%s %d %d %s %d", cond, trigger, negate, param, state);
3188 if (state < 0 && (!trigger || !i->failed_condition)) {
3189 i->failed_condition = cond;
3190 i->failed_condition_trigger = trigger;
3191 i->failed_condition_negate = negate;
3192 i->failed_condition_param = param;
3193 }
3194 }
3195 if (r < 0)
3196 return bus_log_parse_error(r);
3197
3198 r = sd_bus_message_exit_container(m);
3199 if (r < 0)
3200 return bus_log_parse_error(r);
3201
3202 } else
3203 goto skip;
3204
3205 break;
3206
3207 case SD_BUS_TYPE_STRUCT_BEGIN:
3208
3209 if (streq(name, "LoadError")) {
3210 const char *n, *message;
3211
3212 r = sd_bus_message_read(m, "(ss)", &n, &message);
3213 if (r < 0)
3214 return bus_log_parse_error(r);
3215
3216 if (!isempty(message))
3217 i->load_error = message;
3218 } else
3219 goto skip;
3220
3221 break;
3222
3223 default:
3224 goto skip;
3225 }
3226
3227 return 0;
3228
3229 skip:
3230 r = sd_bus_message_skip(m, contents);
3231 if (r < 0)
3232 return bus_log_parse_error(r);
3233
3234 return 0;
3235 }
3236
3237 static int print_property(const char *name, sd_bus_message *m, const char *contents) {
3238 int r;
3239
3240 assert(name);
3241 assert(m);
3242
3243 /* This is a low-level property printer, see
3244 * print_status_info() for the nicer output */
3245
3246 if (arg_properties && !strv_find(arg_properties, name)) {
3247 /* skip what we didn't read */
3248 r = sd_bus_message_skip(m, contents);
3249 return r;
3250 }
3251
3252 switch (contents[0]) {
3253
3254 case SD_BUS_TYPE_STRUCT_BEGIN:
3255
3256 if (contents[1] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) {
3257 uint32_t u;
3258
3259 r = sd_bus_message_read(m, "(uo)", &u, NULL);
3260 if (r < 0)
3261 return bus_log_parse_error(r);
3262
3263 if (u > 0)
3264 printf("%s=%u\n", name, (unsigned) u);
3265 else if (arg_all)
3266 printf("%s=\n", name);
3267
3268 return 0;
3269
3270 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Unit")) {
3271 const char *s;
3272
3273 r = sd_bus_message_read(m, "(so)", &s, NULL);
3274 if (r < 0)
3275 return bus_log_parse_error(r);
3276
3277 if (arg_all || !isempty(s))
3278 printf("%s=%s\n", name, s);
3279
3280 return 0;
3281
3282 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) {
3283 const char *a = NULL, *b = NULL;
3284
3285 r = sd_bus_message_read(m, "(ss)", &a, &b);
3286 if (r < 0)
3287 return bus_log_parse_error(r);
3288
3289 if (arg_all || !isempty(a) || !isempty(b))
3290 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
3291
3292 return 0;
3293 }
3294
3295 break;
3296
3297 case SD_BUS_TYPE_ARRAY:
3298
3299 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) {
3300 const char *path;
3301 int ignore;
3302
3303 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)");
3304 if (r < 0)
3305 return bus_log_parse_error(r);
3306
3307 while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0)
3308 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
3309
3310 if (r < 0)
3311 return bus_log_parse_error(r);
3312
3313 r = sd_bus_message_exit_container(m);
3314 if (r < 0)
3315 return bus_log_parse_error(r);
3316
3317 return 0;
3318
3319 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) {
3320 const char *type, *path;
3321
3322 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3323 if (r < 0)
3324 return bus_log_parse_error(r);
3325
3326 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3327 printf("%s=%s\n", type, path);
3328 if (r < 0)
3329 return bus_log_parse_error(r);
3330
3331 r = sd_bus_message_exit_container(m);
3332 if (r < 0)
3333 return bus_log_parse_error(r);
3334
3335 return 0;
3336
3337 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3338 const char *type, *path;
3339
3340 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3341 if (r < 0)
3342 return bus_log_parse_error(r);
3343
3344 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3345 printf("Listen%s=%s\n", type, path);
3346 if (r < 0)
3347 return bus_log_parse_error(r);
3348
3349 r = sd_bus_message_exit_container(m);
3350 if (r < 0)
3351 return bus_log_parse_error(r);
3352
3353 return 0;
3354
3355 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Timers")) {
3356 const char *base;
3357 uint64_t value, next_elapse;
3358
3359 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)");
3360 if (r < 0)
3361 return bus_log_parse_error(r);
3362
3363 while ((r = sd_bus_message_read(m, "(stt)", &base, &value, &next_elapse)) > 0) {
3364 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3365
3366 printf("%s={ value=%s ; next_elapse=%s }\n",
3367 base,
3368 format_timespan(timespan1, sizeof(timespan1), value, 0),
3369 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
3370 }
3371 if (r < 0)
3372 return bus_log_parse_error(r);
3373
3374 r = sd_bus_message_exit_container(m);
3375 if (r < 0)
3376 return bus_log_parse_error(r);
3377
3378 return 0;
3379
3380 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3381 ExecStatusInfo info = {};
3382
3383 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3384 if (r < 0)
3385 return bus_log_parse_error(r);
3386
3387 while ((r = exec_status_info_deserialize(m, &info)) > 0) {
3388 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3389 _cleanup_free_ char *tt;
3390
3391 tt = strv_join(info.argv, " ");
3392
3393 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3394 name,
3395 strna(info.path),
3396 strna(tt),
3397 yes_no(info.ignore),
3398 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3399 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3400 (unsigned) info. pid,
3401 sigchld_code_to_string(info.code),
3402 info.status,
3403 info.code == CLD_EXITED ? "" : "/",
3404 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3405
3406 free(info.path);
3407 strv_free(info.argv);
3408 zero(info);
3409 }
3410
3411 r = sd_bus_message_exit_container(m);
3412 if (r < 0)
3413 return bus_log_parse_error(r);
3414
3415 return 0;
3416
3417 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) {
3418 const char *path, *rwm;
3419
3420 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3421 if (r < 0)
3422 return bus_log_parse_error(r);
3423
3424 while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0)
3425 printf("%s=%s %s\n", name, strna(path), strna(rwm));
3426 if (r < 0)
3427 return bus_log_parse_error(r);
3428
3429 r = sd_bus_message_exit_container(m);
3430 if (r < 0)
3431 return bus_log_parse_error(r);
3432
3433 return 0;
3434
3435 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "BlockIODeviceWeight")) {
3436 const char *path;
3437 uint64_t weight;
3438
3439 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3440 if (r < 0)
3441 return bus_log_parse_error(r);
3442
3443 while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0)
3444 printf("%s=%s %" PRIu64 "\n", name, strna(path), weight);
3445 if (r < 0)
3446 return bus_log_parse_error(r);
3447
3448 r = sd_bus_message_exit_container(m);
3449 if (r < 0)
3450 return bus_log_parse_error(r);
3451
3452 return 0;
3453
3454 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && (streq(name, "BlockIOReadBandwidth") || streq(name, "BlockIOWriteBandwidth"))) {
3455 const char *path;
3456 uint64_t bandwidth;
3457
3458 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3459 if (r < 0)
3460 return bus_log_parse_error(r);
3461
3462 while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0)
3463 printf("%s=%s %" PRIu64 "\n", name, strna(path), bandwidth);
3464 if (r < 0)
3465 return bus_log_parse_error(r);
3466
3467 r = sd_bus_message_exit_container(m);
3468 if (r < 0)
3469 return bus_log_parse_error(r);
3470
3471 return 0;
3472 }
3473
3474 break;
3475 }
3476
3477 r = bus_print_property(name, m, arg_all);
3478 if (r < 0)
3479 return bus_log_parse_error(r);
3480
3481 if (r == 0) {
3482 r = sd_bus_message_skip(m, contents);
3483 if (r < 0)
3484 return bus_log_parse_error(r);
3485
3486 if (arg_all)
3487 printf("%s=[unprintable]\n", name);
3488 }
3489
3490 return 0;
3491 }
3492
3493 static int show_one(
3494 const char *verb,
3495 sd_bus *bus,
3496 const char *path,
3497 bool show_properties,
3498 bool *new_line,
3499 bool *ellipsized) {
3500
3501 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3502 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3503 UnitStatusInfo info = {};
3504 ExecStatusInfo *p;
3505 int r;
3506
3507 assert(path);
3508 assert(new_line);
3509
3510 r = sd_bus_call_method(
3511 bus,
3512 "org.freedesktop.systemd1",
3513 path,
3514 "org.freedesktop.DBus.Properties",
3515 "GetAll",
3516 &error,
3517 &reply,
3518 "s", "");
3519 if (r < 0) {
3520 log_error("Failed to get properties: %s", bus_error_message(&error, r));
3521 return r;
3522 }
3523
3524 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
3525 if (r < 0)
3526 return bus_log_parse_error(r);
3527
3528 if (*new_line)
3529 printf("\n");
3530
3531 *new_line = true;
3532
3533 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
3534 const char *name, *contents;
3535
3536 r = sd_bus_message_read(reply, "s", &name);
3537 if (r < 0)
3538 return bus_log_parse_error(r);
3539
3540 r = sd_bus_message_peek_type(reply, NULL, &contents);
3541 if (r < 0)
3542 return bus_log_parse_error(r);
3543
3544 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents);
3545 if (r < 0)
3546 return bus_log_parse_error(r);
3547
3548 if (show_properties)
3549 r = print_property(name, reply, contents);
3550 else
3551 r = status_property(name, reply, &info, contents);
3552 if (r < 0)
3553 return r;
3554
3555 r = sd_bus_message_exit_container(reply);
3556 if (r < 0)
3557 return bus_log_parse_error(r);
3558
3559 r = sd_bus_message_exit_container(reply);
3560 if (r < 0)
3561 return bus_log_parse_error(r);
3562 }
3563 if (r < 0)
3564 return bus_log_parse_error(r);
3565
3566 r = sd_bus_message_exit_container(reply);
3567 if (r < 0)
3568 return bus_log_parse_error(r);
3569
3570 r = 0;
3571
3572 if (!show_properties) {
3573 if (streq(verb, "help"))
3574 show_unit_help(&info);
3575 else
3576 print_status_info(&info, ellipsized);
3577 }
3578
3579 strv_free(info.documentation);
3580 strv_free(info.dropin_paths);
3581 strv_free(info.listen);
3582
3583 if (!streq_ptr(info.active_state, "active") &&
3584 !streq_ptr(info.active_state, "reloading") &&
3585 streq(verb, "status")) {
3586 /* According to LSB: "program not running" */
3587 /* 0: program is running or service is OK
3588 * 1: program is dead and /var/run pid file exists
3589 * 2: program is dead and /var/lock lock file exists
3590 * 3: program is not running
3591 * 4: program or service status is unknown
3592 */
3593 if (info.pid_file && access(info.pid_file, F_OK) == 0)
3594 r = 1;
3595 else
3596 r = 3;
3597 }
3598
3599 while ((p = info.exec)) {
3600 LIST_REMOVE(exec, info.exec, p);
3601 exec_status_info_free(p);
3602 }
3603
3604 return r;
3605 }
3606
3607 static int show_one_by_pid(
3608 const char *verb,
3609 sd_bus *bus,
3610 uint32_t pid,
3611 bool *new_line,
3612 bool *ellipsized) {
3613
3614 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3615 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3616 const char *path = NULL;
3617 int r;
3618
3619 r = sd_bus_call_method(
3620 bus,
3621 "org.freedesktop.systemd1",
3622 "/org/freedesktop/systemd1",
3623 "org.freedesktop.systemd1.Manager",
3624 "GetUnitByPID",
3625 &error,
3626 &reply,
3627 "u", pid);
3628 if (r < 0) {
3629 log_error("Failed to get unit for PID %lu: %s", (unsigned long) pid, bus_error_message(&error, r));
3630 return r;
3631 }
3632
3633 r = sd_bus_message_read(reply, "o", &path);
3634 if (r < 0)
3635 return bus_log_parse_error(r);
3636
3637 return show_one(verb, bus, path, false, new_line, ellipsized);
3638 }
3639
3640 static int show_all(
3641 const char* verb,
3642 sd_bus *bus,
3643 bool show_properties,
3644 bool *new_line,
3645 bool *ellipsized) {
3646
3647 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3648 _cleanup_free_ UnitInfo *unit_infos = NULL;
3649 const UnitInfo *u;
3650 unsigned c;
3651 int r;
3652
3653 r = get_unit_list(bus, &reply, &unit_infos);
3654 if (r < 0)
3655 return r;
3656
3657 pager_open_if_enabled();
3658
3659 c = (unsigned) r;
3660
3661 qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
3662
3663 for (u = unit_infos; u < unit_infos + c; u++) {
3664 _cleanup_free_ char *p = NULL;
3665
3666 if (!output_show_unit(u))
3667 continue;
3668
3669 p = unit_dbus_path_from_name(u->id);
3670 if (!p)
3671 return log_oom();
3672
3673 printf("%s -> '%s'\n", u->id, p);
3674
3675 r = show_one(verb, bus, p, show_properties, new_line, ellipsized);
3676 if (r != 0)
3677 return r;
3678 }
3679
3680 return 0;
3681 }
3682
3683 static int show(sd_bus *bus, char **args) {
3684 int r, ret = 0;
3685 bool show_properties, show_status, new_line = false;
3686 char **name;
3687 bool ellipsized = false;
3688
3689 assert(bus);
3690 assert(args);
3691
3692 show_properties = streq(args[0], "show");
3693 show_status = streq(args[0], "status");
3694
3695 if (show_properties)
3696 pager_open_if_enabled();
3697
3698 /* If no argument is specified inspect the manager itself */
3699
3700 if (show_properties && strv_length(args) <= 1)
3701 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line, &ellipsized);
3702
3703 if (show_status && strv_length(args) <= 1)
3704 ret = show_all(args[0], bus, false, &new_line, &ellipsized);
3705 else
3706 STRV_FOREACH(name, args+1) {
3707 uint32_t id;
3708
3709 if (safe_atou32(*name, &id) < 0) {
3710 _cleanup_free_ char *p = NULL, *n = NULL;
3711 /* Interpret as unit name */
3712
3713 n = unit_name_mangle(*name);
3714 if (!n)
3715 return log_oom();
3716
3717 p = unit_dbus_path_from_name(n);
3718 if (!p)
3719 return log_oom();
3720
3721 r = show_one(args[0], bus, p, show_properties, &new_line, &ellipsized);
3722 if (r != 0)
3723 ret = r;
3724
3725 } else if (show_properties) {
3726 _cleanup_free_ char *p = NULL;
3727
3728 /* Interpret as job id */
3729 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3730 return log_oom();
3731
3732 r = show_one(args[0], bus, p, show_properties, &new_line, &ellipsized);
3733 if (r != 0)
3734 ret = r;
3735
3736 } else {
3737 /* Interpret as PID */
3738 r = show_one_by_pid(args[0], bus, id, &new_line, &ellipsized);
3739 if (r != 0)
3740 ret = r;
3741 }
3742 }
3743
3744 if (ellipsized && !arg_quiet)
3745 printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
3746
3747 return ret;
3748 }
3749
3750 static int append_assignment(sd_bus_message *m, const char *assignment) {
3751 const char *eq;
3752 char *field;
3753 int r;
3754
3755 assert(m);
3756 assert(assignment);
3757
3758 eq = strchr(assignment, '=');
3759 if (!eq) {
3760 log_error("Not an assignment: %s", assignment);
3761 return -EINVAL;
3762 }
3763
3764 field = strndupa(assignment, eq - assignment);
3765 eq ++;
3766
3767 r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field);
3768 if (r < 0)
3769 return bus_log_create_error(r);
3770
3771 if (streq(field, "CPUAccounting") ||
3772 streq(field, "MemoryAccounting") ||
3773 streq(field, "BlockIOAccounting")) {
3774
3775 r = parse_boolean(eq);
3776 if (r < 0) {
3777 log_error("Failed to parse boolean assignment %s.", assignment);
3778 return -EINVAL;
3779 }
3780
3781 r = sd_bus_message_append(m, "v", "b", r);
3782
3783 } else if (streq(field, "MemoryLimit")) {
3784 off_t bytes;
3785
3786 r = parse_bytes(eq, &bytes);
3787 if (r < 0) {
3788 log_error("Failed to parse bytes specification %s", assignment);
3789 return -EINVAL;
3790 }
3791
3792 r = sd_bus_message_append(m, "v", "t", (uint64_t) bytes);
3793
3794 } else if (streq(field, "CPUShares") || streq(field, "BlockIOWeight")) {
3795 uint64_t u;
3796
3797 r = safe_atou64(eq, &u);
3798 if (r < 0) {
3799 log_error("Failed to parse %s value %s.", field, eq);
3800 return -EINVAL;
3801 }
3802
3803 r = sd_bus_message_append(m, "v", "t", u);
3804
3805 } else if (streq(field, "DevicePolicy"))
3806 r = sd_bus_message_append(m, "v", "s", eq);
3807
3808 else if (streq(field, "DeviceAllow")) {
3809
3810 if (isempty(eq))
3811 r = sd_bus_message_append(m, "v", "a(ss)", 0);
3812 else {
3813 const char *path, *rwm;
3814 char *e;
3815
3816 e = strchr(eq, ' ');
3817 if (e) {
3818 path = strndupa(eq, e - eq);
3819 rwm = e+1;
3820 } else {
3821 path = eq;
3822 rwm = "";
3823 }
3824
3825 if (!path_startswith(path, "/dev")) {
3826 log_error("%s is not a device file in /dev.", path);
3827 return -EINVAL;
3828 }
3829
3830 r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm);
3831 }
3832
3833 } else if (streq(field, "BlockIOReadBandwidth") || streq(field, "BlockIOWriteBandwidth")) {
3834
3835 if (isempty(eq))
3836 r = sd_bus_message_append(m, "v", "a(st)", 0);
3837 else {
3838 const char *path, *bandwidth;
3839 off_t bytes;
3840 char *e;
3841
3842 e = strchr(eq, ' ');
3843 if (e) {
3844 path = strndupa(eq, e - eq);
3845 bandwidth = e+1;
3846 } else {
3847 log_error("Failed to parse %s value %s.", field, eq);
3848 return -EINVAL;
3849 }
3850
3851 if (!path_startswith(path, "/dev")) {
3852 log_error("%s is not a device file in /dev.", path);
3853 return -EINVAL;
3854 }
3855
3856 r = parse_bytes(bandwidth, &bytes);
3857 if (r < 0) {
3858 log_error("Failed to parse byte value %s.", bandwidth);
3859 return -EINVAL;
3860 }
3861
3862 r = sd_bus_message_append(m, "v", "a(st)", 1, path, (uint64_t) bytes);
3863 }
3864
3865 } else if (streq(field, "BlockIODeviceWeight")) {
3866
3867 if (isempty(eq))
3868 r = sd_bus_message_append(m, "v", "a(st)", 0);
3869 else {
3870 const char *path, *weight;
3871 uint64_t u;
3872 char *e;
3873
3874 e = strchr(eq, ' ');
3875 if (e) {
3876 path = strndupa(eq, e - eq);
3877 weight = e+1;
3878 } else {
3879 log_error("Failed to parse %s value %s.", field, eq);
3880 return -EINVAL;
3881 }
3882
3883 if (!path_startswith(path, "/dev")) {
3884 log_error("%s is not a device file in /dev.", path);
3885 return -EINVAL;
3886 }
3887
3888 r = safe_atou64(weight, &u);
3889 if (r < 0) {
3890 log_error("Failed to parse %s value %s.", field, weight);
3891 return -EINVAL;
3892 }
3893 r = sd_bus_message_append(m, "v", "a(st)", path, u);
3894 }
3895
3896 } else {
3897 log_error("Unknown assignment %s.", assignment);
3898 return -EINVAL;
3899 }
3900
3901 if (r < 0)
3902 return bus_log_create_error(r);
3903
3904 return 0;
3905 }
3906
3907 static int set_property(sd_bus *bus, char **args) {
3908 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
3909 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3910 _cleanup_free_ char *n = NULL;
3911 char **i;
3912 int r;
3913
3914 r = sd_bus_message_new_method_call(
3915 bus,
3916 "org.freedesktop.systemd1",
3917 "/org/freedesktop/systemd1",
3918 "org.freedesktop.systemd1.Manager",
3919 "SetUnitProperties",
3920 &m);
3921 if (r < 0)
3922 return bus_log_create_error(r);
3923
3924 n = unit_name_mangle(args[1]);
3925 if (!n)
3926 return log_oom();
3927
3928 r = sd_bus_message_append(m, "sb", n, arg_runtime);
3929 if (r < 0)
3930 return bus_log_create_error(r);
3931
3932 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
3933 if (r < 0)
3934 return bus_log_create_error(r);
3935
3936 STRV_FOREACH(i, args + 2) {
3937 r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
3938 if (r < 0)
3939 return bus_log_create_error(r);
3940
3941 r = append_assignment(m, *i);
3942 if (r < 0)
3943 return r;
3944
3945 r = sd_bus_message_close_container(m);
3946 if (r < 0)
3947 return bus_log_create_error(r);
3948 }
3949
3950 r = sd_bus_message_close_container(m);
3951 if (r < 0)
3952 return bus_log_create_error(r);
3953
3954 r = sd_bus_call(bus, m, 0, &error, NULL);
3955 if (r < 0) {
3956 log_error("Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
3957 return r;
3958 }
3959
3960 return 0;
3961 }
3962
3963 static int snapshot(sd_bus *bus, char **args) {
3964 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3965 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3966 _cleanup_free_ char *n = NULL, *id = NULL;
3967 const char *path;
3968 int r;
3969
3970 if (strv_length(args) > 1)
3971 n = unit_name_mangle_with_suffix(args[1], ".snapshot");
3972 else
3973 n = strdup("");
3974 if (!n)
3975 return log_oom();
3976
3977 r = sd_bus_call_method(
3978 bus,
3979 "org.freedesktop.systemd1",
3980 "/org/freedesktop/systemd1",
3981 "org.freedesktop.systemd1.Manager",
3982 "CreateSnapshot",
3983 &error,
3984 &reply,
3985 "sb", n, false);
3986 if (r < 0) {
3987 log_error("Failed to create snapshot: %s", bus_error_message(&error, r));
3988 return r;
3989 }
3990
3991 r = sd_bus_message_read(reply, "o", &path);
3992 if (r < 0)
3993 return bus_log_parse_error(r);
3994
3995 r = sd_bus_get_property_string(
3996 bus,
3997 "org.freedesktop.systemd1",
3998 path,
3999 "org.freedesktop.systemd1.Unit",
4000 "Id",
4001 &error,
4002 &id);
4003 if (r < 0) {
4004 log_error("Failed to get ID of snapshot: %s", bus_error_message(&error, r));
4005 return r;
4006 }
4007
4008 if (!arg_quiet)
4009 puts(id);
4010
4011 return 0;
4012 }
4013
4014 static int delete_snapshot(sd_bus *bus, char **args) {
4015 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4016 char **name;
4017 int r;
4018
4019 assert(args);
4020
4021 STRV_FOREACH(name, args+1) {
4022 _cleanup_free_ char *n = NULL;
4023
4024 n = unit_name_mangle_with_suffix(*name, ".snapshot");
4025 if (!n)
4026 return log_oom();
4027
4028 r = sd_bus_call_method(
4029 bus,
4030 "org.freedesktop.systemd1",
4031 "/org/freedesktop/systemd1",
4032 "org.freedesktop.systemd1.Manager",
4033 "RemoveSnapshot",
4034 &error,
4035 NULL,
4036 "s", n);
4037 if (r < 0) {
4038 log_error("Failed to remove snapshot %s: %s", n, bus_error_message(&error, r));
4039 return r;
4040 }
4041 }
4042
4043 return 0;
4044 }
4045
4046 static int daemon_reload(sd_bus *bus, char **args) {
4047 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4048 const char *method;
4049 int r;
4050
4051 if (arg_action == ACTION_RELOAD)
4052 method = "Reload";
4053 else if (arg_action == ACTION_REEXEC)
4054 method = "Reexecute";
4055 else {
4056 assert(arg_action == ACTION_SYSTEMCTL);
4057
4058 method =
4059 streq(args[0], "clear-jobs") ||
4060 streq(args[0], "cancel") ? "ClearJobs" :
4061 streq(args[0], "daemon-reexec") ? "Reexecute" :
4062 streq(args[0], "reset-failed") ? "ResetFailed" :
4063 streq(args[0], "halt") ? "Halt" :
4064 streq(args[0], "poweroff") ? "PowerOff" :
4065 streq(args[0], "reboot") ? "Reboot" :
4066 streq(args[0], "kexec") ? "KExec" :
4067 streq(args[0], "exit") ? "Exit" :
4068 /* "daemon-reload" */ "Reload";
4069 }
4070
4071 r = sd_bus_call_method(
4072 bus,
4073 "org.freedesktop.systemd1",
4074 "/org/freedesktop/systemd1",
4075 "org.freedesktop.systemd1.Manager",
4076 method,
4077 &error,
4078 NULL,
4079 NULL);
4080
4081 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
4082 /* There's always a fallback possible for
4083 * legacy actions. */
4084 r = -EADDRNOTAVAIL;
4085 else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute"))
4086 /* On reexecution, we expect a disconnect, not a
4087 * reply */
4088 r = 0;
4089 else if (r < 0)
4090 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4091
4092 return r < 0 ? r : 0;
4093 }
4094
4095 static int reset_failed(sd_bus *bus, char **args) {
4096 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4097 char **name;
4098 int r;
4099
4100 if (strv_length(args) <= 1)
4101 return daemon_reload(bus, args);
4102
4103 STRV_FOREACH(name, args+1) {
4104 _cleanup_free_ char *n;
4105
4106 n = unit_name_mangle(*name);
4107 if (!n)
4108 return log_oom();
4109
4110 r = sd_bus_call_method(
4111 bus,
4112 "org.freedesktop.systemd1",
4113 "/org/freedesktop/systemd1",
4114 "org.freedesktop.systemd1.Manager",
4115 "ResetFailedUnit",
4116 &error,
4117 NULL,
4118 "s", n);
4119 if (r < 0) {
4120 log_error("Failed to reset failed state of unit %s: %s", n, bus_error_message(&error, r));
4121 return r;
4122 }
4123 }
4124
4125 return 0;
4126 }
4127
4128 static int show_environment(sd_bus *bus, char **args) {
4129 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4130 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4131 const char *text;
4132 int r;
4133
4134 pager_open_if_enabled();
4135
4136 r = sd_bus_get_property(
4137 bus,
4138 "org.freedesktop.systemd1",
4139 "/org/freedesktop/systemd1",
4140 "org.freedesktop.systemd1.Manager",
4141 "Environment",
4142 &error,
4143 &reply,
4144 "as");
4145 if (r < 0) {
4146 log_error("Failed to get environment: %s", bus_error_message(&error, r));
4147 return r;
4148 }
4149
4150 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
4151 if (r < 0)
4152 return bus_log_parse_error(r);
4153
4154 while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0)
4155 puts(text);
4156 if (r < 0)
4157 return bus_log_parse_error(r);
4158
4159 r = sd_bus_message_exit_container(reply);
4160 if (r < 0)
4161 return bus_log_parse_error(r);
4162
4163 return 0;
4164 }
4165
4166 static int switch_root(sd_bus *bus, char **args) {
4167 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4168 _cleanup_free_ char *init = NULL;
4169 const char *root;
4170 unsigned l;
4171 int r;
4172
4173 l = strv_length(args);
4174 if (l < 2 || l > 3) {
4175 log_error("Wrong number of arguments.");
4176 return -EINVAL;
4177 }
4178
4179 root = args[1];
4180
4181 if (l >= 3)
4182 init = strdup(args[2]);
4183 else {
4184 parse_env_file("/proc/cmdline", WHITESPACE,
4185 "init", &init,
4186 NULL);
4187
4188 if (!init)
4189 init = strdup("");
4190 }
4191
4192 if (!init)
4193 return log_oom();
4194
4195 log_debug("switching root - root: %s; init: %s", root, init);
4196
4197 r = sd_bus_call_method(
4198 bus,
4199 "org.freedesktop.systemd1",
4200 "/org/freedesktop/systemd1",
4201 "org.freedesktop.systemd1.Manager",
4202 "SwitchRoot",
4203 &error,
4204 NULL,
4205 "ss", root, init);
4206 if (r < 0) {
4207 log_error("Failed to switch root: %s", bus_error_message(&error, r));
4208 return r;
4209 }
4210
4211 return 0;
4212 }
4213
4214 static int set_environment(sd_bus *bus, char **args) {
4215 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4216 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4217 const char *method;
4218 int r;
4219
4220 assert(bus);
4221 assert(args);
4222
4223 method = streq(args[0], "set-environment")
4224 ? "SetEnvironment"
4225 : "UnsetEnvironment";
4226
4227 r = sd_bus_message_new_method_call(
4228 bus,
4229 "org.freedesktop.systemd1",
4230 "/org/freedesktop/systemd1",
4231 "org.freedesktop.systemd1.Manager",
4232 method,
4233 &m);
4234 if (r < 0)
4235 return bus_log_create_error(r);
4236
4237 r = sd_bus_message_append_strv(m, args + 1);
4238 if (r < 0)
4239 return bus_log_create_error(r);
4240
4241 r = sd_bus_call(bus, m, 0, &error, NULL);
4242 if (r < 0) {
4243 log_error("Failed to set environment: %s", bus_error_message(&error, r));
4244 return r;
4245 }
4246
4247 return 0;
4248 }
4249
4250 static int enable_sysv_units(const char *verb, char **args) {
4251 int r = 0;
4252
4253 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
4254 unsigned f = 1, t = 1;
4255 _cleanup_lookup_paths_free_ LookupPaths paths = {};
4256
4257 if (arg_scope != UNIT_FILE_SYSTEM)
4258 return 0;
4259
4260 if (!streq(verb, "enable") &&
4261 !streq(verb, "disable") &&
4262 !streq(verb, "is-enabled"))
4263 return 0;
4264
4265 /* Processes all SysV units, and reshuffles the array so that
4266 * afterwards only the native units remain */
4267
4268 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
4269 if (r < 0)
4270 return r;
4271
4272 r = 0;
4273 for (f = 0; args[f]; f++) {
4274 const char *name;
4275 _cleanup_free_ char *p = NULL, *q = NULL;
4276 bool found_native = false, found_sysv;
4277 unsigned c = 1;
4278 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
4279 char **k, *l;
4280 int j;
4281 pid_t pid;
4282 siginfo_t status;
4283
4284 name = args[f];
4285
4286 if (!endswith(name, ".service"))
4287 continue;
4288
4289 if (path_is_absolute(name))
4290 continue;
4291
4292 STRV_FOREACH(k, paths.unit_path) {
4293 if (!isempty(arg_root))
4294 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
4295 else
4296 asprintf(&p, "%s/%s", *k, name);
4297
4298 if (!p) {
4299 r = log_oom();
4300 goto finish;
4301 }
4302
4303 found_native = access(p, F_OK) >= 0;
4304 free(p);
4305 p = NULL;
4306
4307 if (found_native)
4308 break;
4309 }
4310
4311 if (found_native)
4312 continue;
4313
4314 if (!isempty(arg_root))
4315 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
4316 else
4317 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
4318 if (!p) {
4319 r = log_oom();
4320 goto finish;
4321 }
4322
4323 p[strlen(p) - sizeof(".service") + 1] = 0;
4324 found_sysv = access(p, F_OK) >= 0;
4325
4326 if (!found_sysv)
4327 continue;
4328
4329 /* Mark this entry, so that we don't try enabling it as native unit */
4330 args[f] = (char*) "";
4331
4332 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4333
4334 if (!isempty(arg_root))
4335 argv[c++] = q = strappend("--root=", arg_root);
4336
4337 argv[c++] = path_get_file_name(p);
4338 argv[c++] =
4339 streq(verb, "enable") ? "on" :
4340 streq(verb, "disable") ? "off" : "--level=5";
4341 argv[c] = NULL;
4342
4343 l = strv_join((char**)argv, " ");
4344 if (!l) {
4345 r = log_oom();
4346 goto finish;
4347 }
4348
4349 log_info("Executing %s", l);
4350 free(l);
4351
4352 pid = fork();
4353 if (pid < 0) {
4354 log_error("Failed to fork: %m");
4355 r = -errno;
4356 goto finish;
4357 } else if (pid == 0) {
4358 /* Child */
4359
4360 execv(argv[0], (char**) argv);
4361 _exit(EXIT_FAILURE);
4362 }
4363
4364 j = wait_for_terminate(pid, &status);
4365 if (j < 0) {
4366 log_error("Failed to wait for child: %s", strerror(-r));
4367 r = j;
4368 goto finish;
4369 }
4370
4371 if (status.si_code == CLD_EXITED) {
4372 if (streq(verb, "is-enabled")) {
4373 if (status.si_status == 0) {
4374 if (!arg_quiet)
4375 puts("enabled");
4376 r = 1;
4377 } else {
4378 if (!arg_quiet)
4379 puts("disabled");
4380 }
4381
4382 } else if (status.si_status != 0) {
4383 r = -EINVAL;
4384 goto finish;
4385 }
4386 } else {
4387 r = -EPROTO;
4388 goto finish;
4389 }
4390 }
4391
4392 finish:
4393 /* Drop all SysV units */
4394 for (f = 0, t = 0; args[f]; f++) {
4395
4396 if (isempty(args[f]))
4397 continue;
4398
4399 args[t++] = args[f];
4400 }
4401
4402 args[t] = NULL;
4403
4404 #endif
4405 return r;
4406 }
4407
4408 static int mangle_names(char **original_names, char ***mangled_names) {
4409 char **i, **l, **name;
4410
4411 l = new(char*, strv_length(original_names) + 1);
4412 if (!l)
4413 return log_oom();
4414
4415 i = l;
4416 STRV_FOREACH(name, original_names) {
4417
4418 /* When enabling units qualified path names are OK,
4419 * too, hence allow them explicitly. */
4420
4421 if (is_path(*name))
4422 *i = strdup(*name);
4423 else
4424 *i = unit_name_mangle(*name);
4425
4426 if (!*i) {
4427 strv_free(l);
4428 return log_oom();
4429 }
4430
4431 i++;
4432 }
4433
4434 *i = NULL;
4435 *mangled_names = l;
4436
4437 return 0;
4438 }
4439
4440 static int enable_unit(sd_bus *bus, char **args) {
4441 _cleanup_strv_free_ char **mangled_names = NULL;
4442 const char *verb = args[0];
4443 UnitFileChange *changes = NULL;
4444 unsigned n_changes = 0;
4445 int carries_install_info = -1;
4446 int r;
4447
4448 if (!args[1])
4449 return 0;
4450
4451 r = mangle_names(args+1, &mangled_names);
4452 if (r < 0)
4453 return r;
4454
4455 r = enable_sysv_units(verb, mangled_names);
4456 if (r < 0)
4457 return r;
4458
4459 if (!bus || avoid_bus()) {
4460 if (streq(verb, "enable")) {
4461 r = unit_file_enable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4462 carries_install_info = r;
4463 } else if (streq(verb, "disable"))
4464 r = unit_file_disable(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4465 else if (streq(verb, "reenable")) {
4466 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4467 carries_install_info = r;
4468 } else if (streq(verb, "link"))
4469 r = unit_file_link(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4470 else if (streq(verb, "preset")) {
4471 r = unit_file_preset(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4472 carries_install_info = r;
4473 } else if (streq(verb, "mask"))
4474 r = unit_file_mask(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4475 else if (streq(verb, "unmask"))
4476 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4477 else
4478 assert_not_reached("Unknown verb");
4479
4480 if (r < 0) {
4481 log_error("Operation failed: %s", strerror(-r));
4482 goto finish;
4483 }
4484
4485 if (!arg_quiet)
4486 dump_unit_file_changes(changes, n_changes);
4487
4488 r = 0;
4489 } else {
4490 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
4491 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4492 int expect_carries_install_info = false;
4493 bool send_force = true;
4494 const char *method;
4495
4496 if (streq(verb, "enable")) {
4497 method = "EnableUnitFiles";
4498 expect_carries_install_info = true;
4499 } else if (streq(verb, "disable")) {
4500 method = "DisableUnitFiles";
4501 send_force = false;
4502 } else if (streq(verb, "reenable")) {
4503 method = "ReenableUnitFiles";
4504 expect_carries_install_info = true;
4505 } else if (streq(verb, "link"))
4506 method = "LinkUnitFiles";
4507 else if (streq(verb, "preset")) {
4508 method = "PresetUnitFiles";
4509 expect_carries_install_info = true;
4510 } else if (streq(verb, "mask"))
4511 method = "MaskUnitFiles";
4512 else if (streq(verb, "unmask")) {
4513 method = "UnmaskUnitFiles";
4514 send_force = false;
4515 } else
4516 assert_not_reached("Unknown verb");
4517
4518 r = sd_bus_message_new_method_call(
4519 bus,
4520 "org.freedesktop.systemd1",
4521 "/org/freedesktop/systemd1",
4522 "org.freedesktop.systemd1.Manager",
4523 method,
4524 &m);
4525 if (r < 0)
4526 return bus_log_create_error(r);
4527
4528 r = sd_bus_message_append_strv(m, mangled_names);
4529 if (r < 0)
4530 return bus_log_create_error(r);
4531
4532 r = sd_bus_message_append(m, "b", arg_runtime);
4533 if (r < 0)
4534 return bus_log_create_error(r);
4535
4536 if (send_force) {
4537 r = sd_bus_message_append(m, "b", arg_force);
4538 if (r < 0)
4539 return bus_log_create_error(r);
4540 }
4541
4542 r = sd_bus_call(bus, m, 0, &error, &reply);
4543 if (r < 0) {
4544 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4545 return r;
4546 }
4547
4548 if (expect_carries_install_info) {
4549 r = sd_bus_message_read(reply, "b", &carries_install_info);
4550 if (r < 0)
4551 return bus_log_parse_error(r);
4552 }
4553
4554 r = deserialize_and_dump_unit_file_changes(m);
4555 if (r < 0)
4556 return r;
4557
4558 /* Try to reload if enabeld */
4559 if (!arg_no_reload)
4560 r = daemon_reload(bus, args);
4561 else
4562 r = 0;
4563 }
4564
4565 if (carries_install_info == 0)
4566 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
4567 "using systemctl.\n"
4568 "Possible reasons for having this kind of units are:\n"
4569 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4570 " .wants/ or .requires/ directory.\n"
4571 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4572 " a requirement dependency on it.\n"
4573 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4574 " D-Bus, udev, scripted systemctl call, ...).\n");
4575
4576 finish:
4577 unit_file_changes_free(changes, n_changes);
4578
4579 return r;
4580 }
4581
4582 static int unit_is_enabled(sd_bus *bus, char **args) {
4583
4584 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4585 _cleanup_strv_free_ char **mangled_names = NULL;
4586 bool enabled;
4587 char **name;
4588 int r;
4589
4590 r = mangle_names(args+1, &mangled_names);
4591 if (r < 0)
4592 return r;
4593
4594 r = enable_sysv_units(args[0], mangled_names);
4595 if (r < 0)
4596 return r;
4597
4598 enabled = r > 0;
4599
4600 if (!bus || avoid_bus()) {
4601
4602 STRV_FOREACH(name, mangled_names) {
4603 UnitFileState state;
4604
4605 state = unit_file_get_state(arg_scope, arg_root, *name);
4606 if (state < 0) {
4607 log_error("Failed to get unit file state for %s: %s", *name, strerror(-state));
4608 return state;
4609 }
4610
4611 if (state == UNIT_FILE_ENABLED ||
4612 state == UNIT_FILE_ENABLED_RUNTIME ||
4613 state == UNIT_FILE_STATIC)
4614 enabled = true;
4615
4616 if (!arg_quiet)
4617 puts(unit_file_state_to_string(state));
4618 }
4619
4620 } else {
4621 STRV_FOREACH(name, mangled_names) {
4622 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4623 const char *s;
4624
4625 r = sd_bus_call_method(
4626 bus,
4627 "org.freedesktop.systemd1",
4628 "/org/freedesktop/systemd1",
4629 "org.freedesktop.systemd1.Manager",
4630 "GetUnitFileState",
4631 &error,
4632 &reply,
4633 "s", name);
4634 if (r < 0) {
4635 log_error("Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
4636 return r;
4637 }
4638
4639 r = sd_bus_message_read(reply, "s", &s);
4640 if (r < 0)
4641 return bus_log_parse_error(r);
4642
4643 if (streq(s, "enabled") ||
4644 streq(s, "enabled-runtime") ||
4645 streq(s, "static"))
4646 enabled = true;
4647
4648 if (!arg_quiet)
4649 puts(s);
4650 }
4651 }
4652
4653 return !enabled;
4654 }
4655
4656 static int systemctl_help(void) {
4657
4658 pager_open_if_enabled();
4659
4660 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4661 "Query or send control commands to the systemd manager.\n\n"
4662 " -h --help Show this help\n"
4663 " --version Show package version\n"
4664 " --system Connect to system manager\n"
4665 " --user Connect to user service manager\n"
4666 " -H --host=[USER@]HOST\n"
4667 " Operate on remote host\n"
4668 " -M --machine=CONTAINER\n"
4669 " Operate on local container\n"
4670 " -t --type=TYPE List only units of a particular type\n"
4671 " --state=STATE List only units with particular LOAD or SUB or ACTIVE state\n"
4672 " -p --property=NAME Show only properties by this name\n"
4673 " -a --all Show all loaded units/properties, including dead/empty\n"
4674 " ones. To list all units installed on the system, use\n"
4675 " the 'list-unit-files' command instead.\n"
4676 " --reverse Show reverse dependencies with 'list-dependencies'\n"
4677 " -l --full Don't ellipsize unit names on output\n"
4678 " --fail When queueing a new job, fail if conflicting jobs are\n"
4679 " pending\n"
4680 " --irreversible When queueing a new job, make sure it cannot be implicitly\n"
4681 " cancelled\n"
4682 " --ignore-dependencies\n"
4683 " When queueing a new job, ignore all its dependencies\n"
4684 " --show-types When showing sockets, explicitly show their type\n"
4685 " -i --ignore-inhibitors\n"
4686 " When shutting down or sleeping, ignore inhibitors\n"
4687 " --kill-who=WHO Who to send signal to\n"
4688 " -s --signal=SIGNAL Which signal to send\n"
4689 " -q --quiet Suppress output\n"
4690 " --no-block Do not wait until operation finished\n"
4691 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4692 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4693 " configuration\n"
4694 " --no-legend Do not print a legend (column headers and hints)\n"
4695 " --no-pager Do not pipe output into a pager\n"
4696 " --no-ask-password\n"
4697 " Do not ask for system passwords\n"
4698 " --global Enable/disable unit files globally\n"
4699 " --runtime Enable unit files only temporarily until next reboot\n"
4700 " -f --force When enabling unit files, override existing symlinks\n"
4701 " When shutting down, execute action immediately\n"
4702 " --root=PATH Enable unit files in the specified root directory\n"
4703 " -n --lines=INTEGER Number of journal entries to show\n"
4704 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4705 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4706 "Unit Commands:\n"
4707 " list-units List loaded units\n"
4708 " list-sockets List loaded sockets ordered by address\n"
4709 " list-timers List loaded timers ordered by next elapse\n"
4710 " start [NAME...] Start (activate) one or more units\n"
4711 " stop [NAME...] Stop (deactivate) one or more units\n"
4712 " reload [NAME...] Reload one or more units\n"
4713 " restart [NAME...] Start or restart one or more units\n"
4714 " try-restart [NAME...] Restart one or more units if active\n"
4715 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4716 " otherwise start or restart\n"
4717 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4718 " otherwise restart if active\n"
4719 " isolate [NAME] Start one unit and stop all others\n"
4720 " kill [NAME...] Send signal to processes of a unit\n"
4721 " is-active [NAME...] Check whether units are active\n"
4722 " is-failed [NAME...] Check whether units are failed\n"
4723 " status [NAME...|PID...] Show runtime status of one or more units\n"
4724 " show [NAME...|JOB...] Show properties of one or more\n"
4725 " units/jobs or the manager\n"
4726 " set-property [NAME] [ASSIGNMENT...]\n"
4727 " Sets one or more properties of a unit\n"
4728 " help [NAME...|PID...] Show manual for one or more units\n"
4729 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4730 " units\n"
4731 " list-dependencies [NAME] Recursively show units which are required\n"
4732 " or wanted by this unit or by which this\n"
4733 " unit is required or wanted\n\n"
4734 "Unit File Commands:\n"
4735 " list-unit-files List installed unit files\n"
4736 " enable [NAME...] Enable one or more unit files\n"
4737 " disable [NAME...] Disable one or more unit files\n"
4738 " reenable [NAME...] Reenable one or more unit files\n"
4739 " preset [NAME...] Enable/disable one or more unit files\n"
4740 " based on preset configuration\n"
4741 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4742 " mask [NAME...] Mask one or more units\n"
4743 " unmask [NAME...] Unmask one or more units\n"
4744 " link [PATH...] Link one or more units files into\n"
4745 " the search path\n"
4746 " get-default Get the name of the default target\n"
4747 " set-default NAME Set the default target\n\n"
4748 "Job Commands:\n"
4749 " list-jobs List jobs\n"
4750 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4751 "Snapshot Commands:\n"
4752 " snapshot [NAME] Create a snapshot\n"
4753 " delete [NAME...] Remove one or more snapshots\n\n"
4754 "Environment Commands:\n"
4755 " show-environment Dump environment\n"
4756 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4757 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4758 "Manager Lifecycle Commands:\n"
4759 " daemon-reload Reload systemd manager configuration\n"
4760 " daemon-reexec Reexecute systemd manager\n\n"
4761 "System Commands:\n"
4762 " default Enter system default mode\n"
4763 " rescue Enter system rescue mode\n"
4764 " emergency Enter system emergency mode\n"
4765 " halt Shut down and halt the system\n"
4766 " poweroff Shut down and power-off the system\n"
4767 " reboot [ARG] Shut down and reboot the system\n"
4768 " kexec Shut down and reboot the system with kexec\n"
4769 " exit Request user instance exit\n"
4770 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4771 " suspend Suspend the system\n"
4772 " hibernate Hibernate the system\n"
4773 " hybrid-sleep Hibernate and suspend the system\n",
4774 program_invocation_short_name);
4775
4776 return 0;
4777 }
4778
4779 static int halt_help(void) {
4780
4781 printf("%s [OPTIONS...]%s\n\n"
4782 "%s the system.\n\n"
4783 " --help Show this help\n"
4784 " --halt Halt the machine\n"
4785 " -p --poweroff Switch off the machine\n"
4786 " --reboot Reboot the machine\n"
4787 " -f --force Force immediate halt/power-off/reboot\n"
4788 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4789 " -d --no-wtmp Don't write wtmp record\n"
4790 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4791 program_invocation_short_name,
4792 arg_action == ACTION_REBOOT ? " [ARG]" : "",
4793 arg_action == ACTION_REBOOT ? "Reboot" :
4794 arg_action == ACTION_POWEROFF ? "Power off" :
4795 "Halt");
4796
4797 return 0;
4798 }
4799
4800 static int shutdown_help(void) {
4801
4802 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4803 "Shut down the system.\n\n"
4804 " --help Show this help\n"
4805 " -H --halt Halt the machine\n"
4806 " -P --poweroff Power-off the machine\n"
4807 " -r --reboot Reboot the machine\n"
4808 " -h Equivalent to --poweroff, overridden by --halt\n"
4809 " -k Don't halt/power-off/reboot, just send warnings\n"
4810 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4811 " -c Cancel a pending shutdown\n",
4812 program_invocation_short_name);
4813
4814 return 0;
4815 }
4816
4817 static int telinit_help(void) {
4818
4819 printf("%s [OPTIONS...] {COMMAND}\n\n"
4820 "Send control commands to the init daemon.\n\n"
4821 " --help Show this help\n"
4822 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4823 "Commands:\n"
4824 " 0 Power-off the machine\n"
4825 " 6 Reboot the machine\n"
4826 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4827 " 1, s, S Enter rescue mode\n"
4828 " q, Q Reload init daemon configuration\n"
4829 " u, U Reexecute init daemon\n",
4830 program_invocation_short_name);
4831
4832 return 0;
4833 }
4834
4835 static int runlevel_help(void) {
4836
4837 printf("%s [OPTIONS...]\n\n"
4838 "Prints the previous and current runlevel of the init system.\n\n"
4839 " --help Show this help\n",
4840 program_invocation_short_name);
4841
4842 return 0;
4843 }
4844
4845 static int help_types(void) {
4846 int i;
4847 const char *t;
4848
4849 puts("Available unit types:");
4850 for(i = 0; i < _UNIT_TYPE_MAX; i++) {
4851 t = unit_type_to_string(i);
4852 if (t)
4853 puts(t);
4854 }
4855
4856 return 0;
4857 }
4858
4859 static int systemctl_parse_argv(int argc, char *argv[]) {
4860
4861 enum {
4862 ARG_FAIL = 0x100,
4863 ARG_REVERSE,
4864 ARG_AFTER,
4865 ARG_BEFORE,
4866 ARG_SHOW_TYPES,
4867 ARG_IRREVERSIBLE,
4868 ARG_IGNORE_DEPENDENCIES,
4869 ARG_VERSION,
4870 ARG_USER,
4871 ARG_SYSTEM,
4872 ARG_GLOBAL,
4873 ARG_NO_BLOCK,
4874 ARG_NO_LEGEND,
4875 ARG_NO_PAGER,
4876 ARG_NO_WALL,
4877 ARG_ROOT,
4878 ARG_NO_RELOAD,
4879 ARG_KILL_WHO,
4880 ARG_NO_ASK_PASSWORD,
4881 ARG_FAILED,
4882 ARG_RUNTIME,
4883 ARG_FORCE,
4884 ARG_PLAIN,
4885 ARG_STATE
4886 };
4887
4888 static const struct option options[] = {
4889 { "help", no_argument, NULL, 'h' },
4890 { "version", no_argument, NULL, ARG_VERSION },
4891 { "type", required_argument, NULL, 't' },
4892 { "property", required_argument, NULL, 'p' },
4893 { "all", no_argument, NULL, 'a' },
4894 { "reverse", no_argument, NULL, ARG_REVERSE },
4895 { "after", no_argument, NULL, ARG_AFTER },
4896 { "before", no_argument, NULL, ARG_BEFORE },
4897 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
4898 { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
4899 { "full", no_argument, NULL, 'l' },
4900 { "fail", no_argument, NULL, ARG_FAIL },
4901 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE },
4902 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4903 { "ignore-inhibitors", no_argument, NULL, 'i' },
4904 { "user", no_argument, NULL, ARG_USER },
4905 { "system", no_argument, NULL, ARG_SYSTEM },
4906 { "global", no_argument, NULL, ARG_GLOBAL },
4907 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4908 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4909 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4910 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4911 { "quiet", no_argument, NULL, 'q' },
4912 { "root", required_argument, NULL, ARG_ROOT },
4913 { "force", no_argument, NULL, ARG_FORCE },
4914 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4915 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4916 { "signal", required_argument, NULL, 's' },
4917 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4918 { "host", required_argument, NULL, 'H' },
4919 { "machine", required_argument, NULL, 'M' },
4920 { "runtime", no_argument, NULL, ARG_RUNTIME },
4921 { "lines", required_argument, NULL, 'n' },
4922 { "output", required_argument, NULL, 'o' },
4923 { "plain", no_argument, NULL, ARG_PLAIN },
4924 { "state", required_argument, NULL, ARG_STATE },
4925 {}
4926 };
4927
4928 int c;
4929
4930 assert(argc >= 0);
4931 assert(argv);
4932
4933 while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:i", options, NULL)) >= 0) {
4934
4935 switch (c) {
4936
4937 case 'h':
4938 return systemctl_help();
4939
4940 case ARG_VERSION:
4941 puts(PACKAGE_STRING);
4942 puts(SYSTEMD_FEATURES);
4943 return 0;
4944
4945 case 't': {
4946 char *word, *state;
4947 size_t size;
4948
4949 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
4950 _cleanup_free_ char *type;
4951
4952 type = strndup(word, size);
4953 if (!type)
4954 return -ENOMEM;
4955
4956 if (streq(type, "help")) {
4957 help_types();
4958 return 0;
4959 }
4960
4961 if (unit_type_from_string(type) >= 0) {
4962 if (strv_push(&arg_types, type))
4963 return log_oom();
4964 type = NULL;
4965 continue;
4966 }
4967
4968 /* It's much nicer to use --state= for
4969 * load states, but let's support this
4970 * in --types= too for compatibility
4971 * with old versions */
4972 if (unit_load_state_from_string(optarg) >= 0) {
4973 if (strv_push(&arg_states, type) < 0)
4974 return log_oom();
4975 type = NULL;
4976 continue;
4977 }
4978
4979 log_error("Unknown unit type or load state '%s'.", type);
4980 log_info("Use -t help to see a list of allowed values.");
4981 return -EINVAL;
4982 }
4983
4984 break;
4985 }
4986
4987 case 'p': {
4988 /* Make sure that if the empty property list
4989 was specified, we won't show any properties. */
4990 if (isempty(optarg) && !arg_properties) {
4991 arg_properties = new0(char*, 1);
4992 if (!arg_properties)
4993 return log_oom();
4994 } else {
4995 char *word, *state;
4996 size_t size;
4997
4998 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
4999 char *prop;
5000
5001 prop = strndup(word, size);
5002 if (!prop)
5003 return log_oom();
5004
5005 if (strv_push(&arg_properties, prop) < 0) {
5006 free(prop);
5007 return log_oom();
5008 }
5009 }
5010 }
5011
5012 /* If the user asked for a particular
5013 * property, show it to him, even if it is
5014 * empty. */
5015 arg_all = true;
5016
5017 break;
5018 }
5019
5020 case 'a':
5021 arg_all = true;
5022 break;
5023
5024 case ARG_REVERSE:
5025 arg_dependency = DEPENDENCY_REVERSE;
5026 break;
5027
5028 case ARG_AFTER:
5029 arg_dependency = DEPENDENCY_AFTER;
5030 break;
5031
5032 case ARG_BEFORE:
5033 arg_dependency = DEPENDENCY_BEFORE;
5034 break;
5035
5036 case ARG_SHOW_TYPES:
5037 arg_show_types = true;
5038 break;
5039
5040 case ARG_FAIL:
5041 arg_job_mode = "fail";
5042 break;
5043
5044 case ARG_IRREVERSIBLE:
5045 arg_job_mode = "replace-irreversibly";
5046 break;
5047
5048 case ARG_IGNORE_DEPENDENCIES:
5049 arg_job_mode = "ignore-dependencies";
5050 break;
5051
5052 case ARG_USER:
5053 arg_scope = UNIT_FILE_USER;
5054 break;
5055
5056 case ARG_SYSTEM:
5057 arg_scope = UNIT_FILE_SYSTEM;
5058 break;
5059
5060 case ARG_GLOBAL:
5061 arg_scope = UNIT_FILE_GLOBAL;
5062 break;
5063
5064 case ARG_NO_BLOCK:
5065 arg_no_block = true;
5066 break;
5067
5068 case ARG_NO_LEGEND:
5069 arg_no_legend = true;
5070 break;
5071
5072 case ARG_NO_PAGER:
5073 arg_no_pager = true;
5074 break;
5075
5076 case ARG_NO_WALL:
5077 arg_no_wall = true;
5078 break;
5079
5080 case ARG_ROOT:
5081 arg_root = optarg;
5082 break;
5083
5084 case 'l':
5085 arg_full = true;
5086 break;
5087
5088 case ARG_FAILED:
5089 if (strv_extend(&arg_states, "failed") < 0)
5090 return log_oom();
5091
5092 break;
5093
5094 case 'q':
5095 arg_quiet = true;
5096 break;
5097
5098 case ARG_FORCE:
5099 arg_force ++;
5100 break;
5101
5102 case 'f':
5103 arg_force ++;
5104 break;
5105
5106 case ARG_NO_RELOAD:
5107 arg_no_reload = true;
5108 break;
5109
5110 case ARG_KILL_WHO:
5111 arg_kill_who = optarg;
5112 break;
5113
5114 case 's':
5115 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
5116 log_error("Failed to parse signal string %s.", optarg);
5117 return -EINVAL;
5118 }
5119 break;
5120
5121 case ARG_NO_ASK_PASSWORD:
5122 arg_ask_password = false;
5123 break;
5124
5125 case 'H':
5126 arg_transport = BUS_TRANSPORT_REMOTE;
5127 arg_host = optarg;
5128 break;
5129
5130 case 'M':
5131 arg_transport = BUS_TRANSPORT_CONTAINER;
5132 arg_host = optarg;
5133 break;
5134
5135 case ARG_RUNTIME:
5136 arg_runtime = true;
5137 break;
5138
5139 case 'n':
5140 if (safe_atou(optarg, &arg_lines) < 0) {
5141 log_error("Failed to parse lines '%s'", optarg);
5142 return -EINVAL;
5143 }
5144 break;
5145
5146 case 'o':
5147 arg_output = output_mode_from_string(optarg);
5148 if (arg_output < 0) {
5149 log_error("Unknown output '%s'.", optarg);
5150 return -EINVAL;
5151 }
5152 break;
5153
5154 case 'i':
5155 arg_ignore_inhibitors = true;
5156 break;
5157
5158 case ARG_PLAIN:
5159 arg_plain = true;
5160 break;
5161
5162 case ARG_STATE: {
5163 char *word, *state;
5164 size_t size;
5165
5166 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5167 char *s;
5168
5169 s = strndup(word, size);
5170 if (!s)
5171 return log_oom();
5172
5173 if (strv_push(&arg_states, s) < 0) {
5174 free(s);
5175 return log_oom();
5176 }
5177 }
5178 break;
5179 }
5180
5181 case '?':
5182 return -EINVAL;
5183
5184 default:
5185 assert_not_reached("Unhandled option");
5186 }
5187 }
5188
5189 if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
5190 log_error("Cannot access user instance remotely.");
5191 return -EINVAL;
5192 }
5193
5194 return 1;
5195 }
5196
5197 static int halt_parse_argv(int argc, char *argv[]) {
5198
5199 enum {
5200 ARG_HELP = 0x100,
5201 ARG_HALT,
5202 ARG_REBOOT,
5203 ARG_NO_WALL
5204 };
5205
5206 static const struct option options[] = {
5207 { "help", no_argument, NULL, ARG_HELP },
5208 { "halt", no_argument, NULL, ARG_HALT },
5209 { "poweroff", no_argument, NULL, 'p' },
5210 { "reboot", no_argument, NULL, ARG_REBOOT },
5211 { "force", no_argument, NULL, 'f' },
5212 { "wtmp-only", no_argument, NULL, 'w' },
5213 { "no-wtmp", no_argument, NULL, 'd' },
5214 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5215 {}
5216 };
5217
5218 int c, r, runlevel;
5219
5220 assert(argc >= 0);
5221 assert(argv);
5222
5223 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
5224 if (runlevel == '0' || runlevel == '6')
5225 arg_force = 2;
5226
5227 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
5228 switch (c) {
5229
5230 case ARG_HELP:
5231 return halt_help();
5232
5233 case ARG_HALT:
5234 arg_action = ACTION_HALT;
5235 break;
5236
5237 case 'p':
5238 if (arg_action != ACTION_REBOOT)
5239 arg_action = ACTION_POWEROFF;
5240 break;
5241
5242 case ARG_REBOOT:
5243 arg_action = ACTION_REBOOT;
5244 break;
5245
5246 case 'f':
5247 arg_force = 2;
5248 break;
5249
5250 case 'w':
5251 arg_dry = true;
5252 break;
5253
5254 case 'd':
5255 arg_no_wtmp = true;
5256 break;
5257
5258 case ARG_NO_WALL:
5259 arg_no_wall = true;
5260 break;
5261
5262 case 'i':
5263 case 'h':
5264 case 'n':
5265 /* Compatibility nops */
5266 break;
5267
5268 case '?':
5269 return -EINVAL;
5270
5271 default:
5272 assert_not_reached("Unhandled option");
5273 }
5274 }
5275
5276 if (arg_action == ACTION_REBOOT && argc == optind + 1) {
5277 r = write_string_file(REBOOT_PARAM_FILE, argv[optind]);
5278 if (r < 0) {
5279 log_error("Failed to write reboot param to "
5280 REBOOT_PARAM_FILE": %s", strerror(-r));
5281 return r;
5282 }
5283 } else if (optind < argc) {
5284 log_error("Too many arguments.");
5285 return -EINVAL;
5286 }
5287
5288 return 1;
5289 }
5290
5291 static int parse_time_spec(const char *t, usec_t *_u) {
5292 assert(t);
5293 assert(_u);
5294
5295 if (streq(t, "now"))
5296 *_u = 0;
5297 else if (!strchr(t, ':')) {
5298 uint64_t u;
5299
5300 if (safe_atou64(t, &u) < 0)
5301 return -EINVAL;
5302
5303 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
5304 } else {
5305 char *e = NULL;
5306 long hour, minute;
5307 struct tm tm = {};
5308 time_t s;
5309 usec_t n;
5310
5311 errno = 0;
5312 hour = strtol(t, &e, 10);
5313 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
5314 return -EINVAL;
5315
5316 minute = strtol(e+1, &e, 10);
5317 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
5318 return -EINVAL;
5319
5320 n = now(CLOCK_REALTIME);
5321 s = (time_t) (n / USEC_PER_SEC);
5322
5323 assert_se(localtime_r(&s, &tm));
5324
5325 tm.tm_hour = (int) hour;
5326 tm.tm_min = (int) minute;
5327 tm.tm_sec = 0;
5328
5329 assert_se(s = mktime(&tm));
5330
5331 *_u = (usec_t) s * USEC_PER_SEC;
5332
5333 while (*_u <= n)
5334 *_u += USEC_PER_DAY;
5335 }
5336
5337 return 0;
5338 }
5339
5340 static int shutdown_parse_argv(int argc, char *argv[]) {
5341
5342 enum {
5343 ARG_HELP = 0x100,
5344 ARG_NO_WALL
5345 };
5346
5347 static const struct option options[] = {
5348 { "help", no_argument, NULL, ARG_HELP },
5349 { "halt", no_argument, NULL, 'H' },
5350 { "poweroff", no_argument, NULL, 'P' },
5351 { "reboot", no_argument, NULL, 'r' },
5352 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
5353 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5354 {}
5355 };
5356
5357 int c, r;
5358
5359 assert(argc >= 0);
5360 assert(argv);
5361
5362 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
5363 switch (c) {
5364
5365 case ARG_HELP:
5366 return shutdown_help();
5367
5368 case 'H':
5369 arg_action = ACTION_HALT;
5370 break;
5371
5372 case 'P':
5373 arg_action = ACTION_POWEROFF;
5374 break;
5375
5376 case 'r':
5377 if (kexec_loaded())
5378 arg_action = ACTION_KEXEC;
5379 else
5380 arg_action = ACTION_REBOOT;
5381 break;
5382
5383 case 'K':
5384 arg_action = ACTION_KEXEC;
5385 break;
5386
5387 case 'h':
5388 if (arg_action != ACTION_HALT)
5389 arg_action = ACTION_POWEROFF;
5390 break;
5391
5392 case 'k':
5393 arg_dry = true;
5394 break;
5395
5396 case ARG_NO_WALL:
5397 arg_no_wall = true;
5398 break;
5399
5400 case 't':
5401 case 'a':
5402 /* Compatibility nops */
5403 break;
5404
5405 case 'c':
5406 arg_action = ACTION_CANCEL_SHUTDOWN;
5407 break;
5408
5409 case '?':
5410 return -EINVAL;
5411
5412 default:
5413 assert_not_reached("Unhandled option");
5414 }
5415 }
5416
5417 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
5418 r = parse_time_spec(argv[optind], &arg_when);
5419 if (r < 0) {
5420 log_error("Failed to parse time specification: %s", argv[optind]);
5421 return r;
5422 }
5423 } else
5424 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5425
5426 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
5427 /* No time argument for shutdown cancel */
5428 arg_wall = argv + optind;
5429 else if (argc > optind + 1)
5430 /* We skip the time argument */
5431 arg_wall = argv + optind + 1;
5432
5433 optind = argc;
5434
5435 return 1;
5436 }
5437
5438 static int telinit_parse_argv(int argc, char *argv[]) {
5439
5440 enum {
5441 ARG_HELP = 0x100,
5442 ARG_NO_WALL
5443 };
5444
5445 static const struct option options[] = {
5446 { "help", no_argument, NULL, ARG_HELP },
5447 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5448 {}
5449 };
5450
5451 static const struct {
5452 char from;
5453 enum action to;
5454 } table[] = {
5455 { '0', ACTION_POWEROFF },
5456 { '6', ACTION_REBOOT },
5457 { '1', ACTION_RESCUE },
5458 { '2', ACTION_RUNLEVEL2 },
5459 { '3', ACTION_RUNLEVEL3 },
5460 { '4', ACTION_RUNLEVEL4 },
5461 { '5', ACTION_RUNLEVEL5 },
5462 { 's', ACTION_RESCUE },
5463 { 'S', ACTION_RESCUE },
5464 { 'q', ACTION_RELOAD },
5465 { 'Q', ACTION_RELOAD },
5466 { 'u', ACTION_REEXEC },
5467 { 'U', ACTION_REEXEC }
5468 };
5469
5470 unsigned i;
5471 int c;
5472
5473 assert(argc >= 0);
5474 assert(argv);
5475
5476 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5477 switch (c) {
5478
5479 case ARG_HELP:
5480 return telinit_help();
5481
5482 case ARG_NO_WALL:
5483 arg_no_wall = true;
5484 break;
5485
5486 case '?':
5487 return -EINVAL;
5488
5489 default:
5490 assert_not_reached("Unhandled option");
5491 }
5492 }
5493
5494 if (optind >= argc) {
5495 telinit_help();
5496 return -EINVAL;
5497 }
5498
5499 if (optind + 1 < argc) {
5500 log_error("Too many arguments.");
5501 return -EINVAL;
5502 }
5503
5504 if (strlen(argv[optind]) != 1) {
5505 log_error("Expected single character argument.");
5506 return -EINVAL;
5507 }
5508
5509 for (i = 0; i < ELEMENTSOF(table); i++)
5510 if (table[i].from == argv[optind][0])
5511 break;
5512
5513 if (i >= ELEMENTSOF(table)) {
5514 log_error("Unknown command '%s'.", argv[optind]);
5515 return -EINVAL;
5516 }
5517
5518 arg_action = table[i].to;
5519
5520 optind ++;
5521
5522 return 1;
5523 }
5524
5525 static int runlevel_parse_argv(int argc, char *argv[]) {
5526
5527 enum {
5528 ARG_HELP = 0x100,
5529 };
5530
5531 static const struct option options[] = {
5532 { "help", no_argument, NULL, ARG_HELP },
5533 {}
5534 };
5535
5536 int c;
5537
5538 assert(argc >= 0);
5539 assert(argv);
5540
5541 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5542 switch (c) {
5543
5544 case ARG_HELP:
5545 return runlevel_help();
5546 return 0;
5547
5548 case '?':
5549 return -EINVAL;
5550
5551 default:
5552 assert_not_reached("Unhandled option");
5553 }
5554 }
5555
5556 if (optind < argc) {
5557 log_error("Too many arguments.");
5558 return -EINVAL;
5559 }
5560
5561 return 1;
5562 }
5563
5564 static int parse_argv(int argc, char *argv[]) {
5565 assert(argc >= 0);
5566 assert(argv);
5567
5568 if (program_invocation_short_name) {
5569
5570 if (strstr(program_invocation_short_name, "halt")) {
5571 arg_action = ACTION_HALT;
5572 return halt_parse_argv(argc, argv);
5573 } else if (strstr(program_invocation_short_name, "poweroff")) {
5574 arg_action = ACTION_POWEROFF;
5575 return halt_parse_argv(argc, argv);
5576 } else if (strstr(program_invocation_short_name, "reboot")) {
5577 if (kexec_loaded())
5578 arg_action = ACTION_KEXEC;
5579 else
5580 arg_action = ACTION_REBOOT;
5581 return halt_parse_argv(argc, argv);
5582 } else if (strstr(program_invocation_short_name, "shutdown")) {
5583 arg_action = ACTION_POWEROFF;
5584 return shutdown_parse_argv(argc, argv);
5585 } else if (strstr(program_invocation_short_name, "init")) {
5586
5587 if (sd_booted() > 0) {
5588 arg_action = _ACTION_INVALID;
5589 return telinit_parse_argv(argc, argv);
5590 } else {
5591 /* Hmm, so some other init system is
5592 * running, we need to forward this
5593 * request to it. For now we simply
5594 * guess that it is Upstart. */
5595
5596 execv(TELINIT, argv);
5597
5598 log_error("Couldn't find an alternative telinit implementation to spawn.");
5599 return -EIO;
5600 }
5601
5602 } else if (strstr(program_invocation_short_name, "runlevel")) {
5603 arg_action = ACTION_RUNLEVEL;
5604 return runlevel_parse_argv(argc, argv);
5605 }
5606 }
5607
5608 arg_action = ACTION_SYSTEMCTL;
5609 return systemctl_parse_argv(argc, argv);
5610 }
5611
5612 _pure_ static int action_to_runlevel(void) {
5613
5614 static const char table[_ACTION_MAX] = {
5615 [ACTION_HALT] = '0',
5616 [ACTION_POWEROFF] = '0',
5617 [ACTION_REBOOT] = '6',
5618 [ACTION_RUNLEVEL2] = '2',
5619 [ACTION_RUNLEVEL3] = '3',
5620 [ACTION_RUNLEVEL4] = '4',
5621 [ACTION_RUNLEVEL5] = '5',
5622 [ACTION_RESCUE] = '1'
5623 };
5624
5625 assert(arg_action < _ACTION_MAX);
5626
5627 return table[arg_action];
5628 }
5629
5630 static int talk_initctl(void) {
5631
5632 struct init_request request = {
5633 .magic = INIT_MAGIC,
5634 .sleeptime = 0,
5635 .cmd = INIT_CMD_RUNLVL
5636 };
5637
5638 _cleanup_close_ int fd = -1;
5639 char rl;
5640 int r;
5641
5642 rl = action_to_runlevel();
5643 if (!rl)
5644 return 0;
5645
5646 request.runlevel = rl;
5647
5648 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5649 if (fd < 0) {
5650 if (errno == ENOENT)
5651 return 0;
5652
5653 log_error("Failed to open "INIT_FIFO": %m");
5654 return -errno;
5655 }
5656
5657 errno = 0;
5658 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5659 if (r) {
5660 log_error("Failed to write to "INIT_FIFO": %m");
5661 return errno > 0 ? -errno : -EIO;
5662 }
5663
5664 return 1;
5665 }
5666
5667 static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
5668
5669 static const struct {
5670 const char* verb;
5671 const enum {
5672 MORE,
5673 LESS,
5674 EQUAL
5675 } argc_cmp;
5676 const int argc;
5677 int (* const dispatch)(sd_bus *bus, char **args);
5678 } verbs[] = {
5679 { "list-units", LESS, 1, list_units },
5680 { "list-unit-files", EQUAL, 1, list_unit_files },
5681 { "list-sockets", LESS, 1, list_sockets },
5682 { "list-timers", LESS, 1, list_timers },
5683 { "list-jobs", EQUAL, 1, list_jobs },
5684 { "clear-jobs", EQUAL, 1, daemon_reload },
5685 { "cancel", MORE, 2, cancel_job },
5686 { "start", MORE, 2, start_unit },
5687 { "stop", MORE, 2, start_unit },
5688 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5689 { "reload", MORE, 2, start_unit },
5690 { "restart", MORE, 2, start_unit },
5691 { "try-restart", MORE, 2, start_unit },
5692 { "reload-or-restart", MORE, 2, start_unit },
5693 { "reload-or-try-restart", MORE, 2, start_unit },
5694 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5695 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5696 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5697 { "isolate", EQUAL, 2, start_unit },
5698 { "kill", MORE, 2, kill_unit },
5699 { "is-active", MORE, 2, check_unit_active },
5700 { "check", MORE, 2, check_unit_active },
5701 { "is-failed", MORE, 2, check_unit_failed },
5702 { "show", MORE, 1, show },
5703 { "status", MORE, 1, show },
5704 { "help", MORE, 2, show },
5705 { "snapshot", LESS, 2, snapshot },
5706 { "delete", MORE, 2, delete_snapshot },
5707 { "daemon-reload", EQUAL, 1, daemon_reload },
5708 { "daemon-reexec", EQUAL, 1, daemon_reload },
5709 { "show-environment", EQUAL, 1, show_environment },
5710 { "set-environment", MORE, 2, set_environment },
5711 { "unset-environment", MORE, 2, set_environment },
5712 { "halt", EQUAL, 1, start_special },
5713 { "poweroff", EQUAL, 1, start_special },
5714 { "reboot", EQUAL, 1, start_special },
5715 { "kexec", EQUAL, 1, start_special },
5716 { "suspend", EQUAL, 1, start_special },
5717 { "hibernate", EQUAL, 1, start_special },
5718 { "hybrid-sleep", EQUAL, 1, start_special },
5719 { "default", EQUAL, 1, start_special },
5720 { "rescue", EQUAL, 1, start_special },
5721 { "emergency", EQUAL, 1, start_special },
5722 { "exit", EQUAL, 1, start_special },
5723 { "reset-failed", MORE, 1, reset_failed },
5724 { "enable", MORE, 2, enable_unit },
5725 { "disable", MORE, 2, enable_unit },
5726 { "is-enabled", MORE, 2, unit_is_enabled },
5727 { "reenable", MORE, 2, enable_unit },
5728 { "preset", MORE, 2, enable_unit },
5729 { "mask", MORE, 2, enable_unit },
5730 { "unmask", MORE, 2, enable_unit },
5731 { "link", MORE, 2, enable_unit },
5732 { "switch-root", MORE, 2, switch_root },
5733 { "list-dependencies", LESS, 2, list_dependencies },
5734 { "set-default", EQUAL, 2, set_default },
5735 { "get-default", EQUAL, 1, get_default },
5736 { "set-property", MORE, 3, set_property },
5737 };
5738
5739 int left;
5740 unsigned i;
5741
5742 assert(argc >= 0);
5743 assert(argv);
5744
5745 left = argc - optind;
5746
5747 if (left <= 0)
5748 /* Special rule: no arguments means "list-units" */
5749 i = 0;
5750 else {
5751 if (streq(argv[optind], "help") && !argv[optind+1]) {
5752 log_error("This command expects one or more "
5753 "unit names. Did you mean --help?");
5754 return -EINVAL;
5755 }
5756
5757 for (i = 0; i < ELEMENTSOF(verbs); i++)
5758 if (streq(argv[optind], verbs[i].verb))
5759 break;
5760
5761 if (i >= ELEMENTSOF(verbs)) {
5762 log_error("Unknown operation '%s'.", argv[optind]);
5763 return -EINVAL;
5764 }
5765 }
5766
5767 switch (verbs[i].argc_cmp) {
5768
5769 case EQUAL:
5770 if (left != verbs[i].argc) {
5771 log_error("Invalid number of arguments.");
5772 return -EINVAL;
5773 }
5774
5775 break;
5776
5777 case MORE:
5778 if (left < verbs[i].argc) {
5779 log_error("Too few arguments.");
5780 return -EINVAL;
5781 }
5782
5783 break;
5784
5785 case LESS:
5786 if (left > verbs[i].argc) {
5787 log_error("Too many arguments.");
5788 return -EINVAL;
5789 }
5790
5791 break;
5792
5793 default:
5794 assert_not_reached("Unknown comparison operator.");
5795 }
5796
5797 /* Require a bus connection for all operations but
5798 * enable/disable */
5799 if (!streq(verbs[i].verb, "enable") &&
5800 !streq(verbs[i].verb, "disable") &&
5801 !streq(verbs[i].verb, "is-enabled") &&
5802 !streq(verbs[i].verb, "list-unit-files") &&
5803 !streq(verbs[i].verb, "reenable") &&
5804 !streq(verbs[i].verb, "preset") &&
5805 !streq(verbs[i].verb, "mask") &&
5806 !streq(verbs[i].verb, "unmask") &&
5807 !streq(verbs[i].verb, "link") &&
5808 !streq(verbs[i].verb, "set-default") &&
5809 !streq(verbs[i].verb, "get-default")) {
5810
5811 if (running_in_chroot() > 0) {
5812 log_info("Running in chroot, ignoring request.");
5813 return 0;
5814 }
5815
5816 if (((!streq(verbs[i].verb, "reboot") &&
5817 !streq(verbs[i].verb, "halt") &&
5818 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5819 log_error("Failed to get D-Bus connection: %s", strerror (-bus_error));
5820 return -EIO;
5821 }
5822
5823 } else {
5824
5825 if (!bus && !avoid_bus()) {
5826 log_error("Failed to get D-Bus connection: %s", strerror (-bus_error));
5827 return -EIO;
5828 }
5829 }
5830
5831 return verbs[i].dispatch(bus, argv + optind);
5832 }
5833
5834 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5835
5836 struct sd_shutdown_command c = {
5837 .usec = t,
5838 .mode = mode,
5839 .dry_run = dry_run,
5840 .warn_wall = warn,
5841 };
5842
5843 union sockaddr_union sockaddr = {
5844 .un.sun_family = AF_UNIX,
5845 .un.sun_path = "/run/systemd/shutdownd",
5846 };
5847
5848 struct iovec iovec[2] = {{
5849 .iov_base = (char*) &c,
5850 .iov_len = offsetof(struct sd_shutdown_command, wall_message),
5851 }};
5852
5853 struct msghdr msghdr = {
5854 .msg_name = &sockaddr,
5855 .msg_namelen = offsetof(struct sockaddr_un, sun_path)
5856 + sizeof("/run/systemd/shutdownd") - 1,
5857 .msg_iov = iovec,
5858 .msg_iovlen = 1,
5859 };
5860
5861 _cleanup_close_ int fd;
5862
5863 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5864 if (fd < 0)
5865 return -errno;
5866
5867 if (!isempty(message)) {
5868 iovec[1].iov_base = (char*) message;
5869 iovec[1].iov_len = strlen(message);
5870 msghdr.msg_iovlen++;
5871 }
5872
5873 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
5874 return -errno;
5875
5876 return 0;
5877 }
5878
5879 static int reload_with_fallback(sd_bus *bus) {
5880
5881 if (bus) {
5882 /* First, try systemd via D-Bus. */
5883 if (daemon_reload(bus, NULL) >= 0)
5884 return 0;
5885 }
5886
5887 /* Nothing else worked, so let's try signals */
5888 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5889
5890 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5891 log_error("kill() failed: %m");
5892 return -errno;
5893 }
5894
5895 return 0;
5896 }
5897
5898 static int start_with_fallback(sd_bus *bus) {
5899
5900 if (bus) {
5901 /* First, try systemd via D-Bus. */
5902 if (start_unit(bus, NULL) >= 0)
5903 goto done;
5904 }
5905
5906 /* Nothing else worked, so let's try
5907 * /dev/initctl */
5908 if (talk_initctl() > 0)
5909 goto done;
5910
5911 log_error("Failed to talk to init daemon.");
5912 return -EIO;
5913
5914 done:
5915 warn_wall(arg_action);
5916 return 0;
5917 }
5918
5919 static int halt_now(enum action a) {
5920
5921 /* Make sure C-A-D is handled by the kernel from this
5922 * point on... */
5923 reboot(RB_ENABLE_CAD);
5924
5925 switch (a) {
5926
5927 case ACTION_HALT:
5928 log_info("Halting.");
5929 reboot(RB_HALT_SYSTEM);
5930 return -errno;
5931
5932 case ACTION_POWEROFF:
5933 log_info("Powering off.");
5934 reboot(RB_POWER_OFF);
5935 return -errno;
5936
5937 case ACTION_REBOOT: {
5938 _cleanup_free_ char *param = NULL;
5939
5940 if (read_one_line_file(REBOOT_PARAM_FILE, &param) >= 0) {
5941 log_info("Rebooting with argument '%s'.", param);
5942 syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
5943 LINUX_REBOOT_CMD_RESTART2, param);
5944 }
5945
5946 log_info("Rebooting.");
5947 reboot(RB_AUTOBOOT);
5948 return -errno;
5949 }
5950
5951 default:
5952 assert_not_reached("Unknown action.");
5953 }
5954 }
5955
5956 static int halt_main(sd_bus *bus) {
5957 int r;
5958
5959 r = check_inhibitors(bus, arg_action);
5960 if (r < 0)
5961 return r;
5962
5963 if (geteuid() != 0) {
5964 /* Try logind if we are a normal user and no special
5965 * mode applies. Maybe PolicyKit allows us to shutdown
5966 * the machine. */
5967
5968 if (arg_when <= 0 &&
5969 !arg_dry &&
5970 arg_force <= 0 &&
5971 (arg_action == ACTION_POWEROFF ||
5972 arg_action == ACTION_REBOOT)) {
5973 r = reboot_with_logind(bus, arg_action);
5974 if (r >= 0)
5975 return r;
5976 }
5977
5978 log_error("Must be root.");
5979 return -EPERM;
5980 }
5981
5982 if (arg_when > 0) {
5983 _cleanup_free_ char *m;
5984
5985 m = strv_join(arg_wall, " ");
5986 if (!m)
5987 return log_oom();
5988
5989 r = send_shutdownd(arg_when,
5990 arg_action == ACTION_HALT ? 'H' :
5991 arg_action == ACTION_POWEROFF ? 'P' :
5992 arg_action == ACTION_KEXEC ? 'K' :
5993 'r',
5994 arg_dry,
5995 !arg_no_wall,
5996 m);
5997
5998 if (r < 0)
5999 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
6000 else {
6001 char date[FORMAT_TIMESTAMP_MAX];
6002
6003 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
6004 format_timestamp(date, sizeof(date), arg_when));
6005 return 0;
6006 }
6007 }
6008
6009 if (!arg_dry && !arg_force)
6010 return start_with_fallback(bus);
6011
6012 if (!arg_no_wtmp) {
6013 if (sd_booted() > 0)
6014 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
6015 else {
6016 r = utmp_put_shutdown();
6017 if (r < 0)
6018 log_warning("Failed to write utmp record: %s", strerror(-r));
6019 }
6020 }
6021
6022 if (arg_dry)
6023 return 0;
6024
6025 r = halt_now(arg_action);
6026 log_error("Failed to reboot: %s", strerror(-r));
6027
6028 return r;
6029 }
6030
6031 static int runlevel_main(void) {
6032 int r, runlevel, previous;
6033
6034 r = utmp_get_runlevel(&runlevel, &previous);
6035 if (r < 0) {
6036 puts("unknown");
6037 return r;
6038 }
6039
6040 printf("%c %c\n",
6041 previous <= 0 ? 'N' : previous,
6042 runlevel <= 0 ? 'N' : runlevel);
6043
6044 return 0;
6045 }
6046
6047 int main(int argc, char*argv[]) {
6048 _cleanup_bus_unref_ sd_bus *bus = NULL;
6049 int r;
6050
6051 setlocale(LC_ALL, "");
6052 log_parse_environment();
6053 log_open();
6054
6055 /* Explicitly not on_tty() to avoid setting cached value.
6056 * This becomes relevant for piping output which might be
6057 * ellipsized. */
6058 original_stdout_is_tty = isatty(STDOUT_FILENO);
6059
6060 r = parse_argv(argc, argv);
6061 if (r <= 0)
6062 goto finish;
6063
6064 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
6065 * let's shortcut this */
6066 if (arg_action == ACTION_RUNLEVEL) {
6067 r = runlevel_main();
6068 goto finish;
6069 }
6070
6071 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
6072 log_info("Running in chroot, ignoring request.");
6073 r = 0;
6074 goto finish;
6075 }
6076
6077 if (!avoid_bus())
6078 r = bus_open_transport_systemd(arg_transport, arg_host, arg_scope != UNIT_FILE_SYSTEM, &bus);
6079
6080 /* systemctl_main() will print an error message for the bus
6081 * connection, but only if it needs to */
6082
6083 switch (arg_action) {
6084
6085 case ACTION_SYSTEMCTL:
6086 r = systemctl_main(bus, argc, argv, r);
6087 break;
6088
6089 case ACTION_HALT:
6090 case ACTION_POWEROFF:
6091 case ACTION_REBOOT:
6092 case ACTION_KEXEC:
6093 r = halt_main(bus);
6094 break;
6095
6096 case ACTION_RUNLEVEL2:
6097 case ACTION_RUNLEVEL3:
6098 case ACTION_RUNLEVEL4:
6099 case ACTION_RUNLEVEL5:
6100 case ACTION_RESCUE:
6101 case ACTION_EMERGENCY:
6102 case ACTION_DEFAULT:
6103 r = start_with_fallback(bus);
6104 break;
6105
6106 case ACTION_RELOAD:
6107 case ACTION_REEXEC:
6108 r = reload_with_fallback(bus);
6109 break;
6110
6111 case ACTION_CANCEL_SHUTDOWN: {
6112 _cleanup_free_ char *m = NULL;
6113
6114 if (arg_wall) {
6115 m = strv_join(arg_wall, " ");
6116 if (!m) {
6117 r = log_oom();
6118 goto finish;
6119 }
6120 }
6121
6122 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
6123 if (r < 0)
6124 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
6125 break;
6126 }
6127
6128 case ACTION_RUNLEVEL:
6129 case _ACTION_INVALID:
6130 default:
6131 assert_not_reached("Unknown action");
6132 }
6133
6134 finish:
6135 pager_close();
6136 ask_password_agent_close();
6137 polkit_agent_close();
6138
6139 strv_free(arg_types);
6140 strv_free(arg_states);
6141 strv_free(arg_properties);
6142
6143 return r < 0 ? EXIT_FAILURE : r;
6144 }
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