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systemctl: no need to fdopen stdout
[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 get_unit_dbus_path_by_pid(
3608 sd_bus *bus,
3609 uint32_t pid,
3610 char **unit) {
3611
3612 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3613 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3614 int r;
3615
3616 r = sd_bus_call_method(
3617 bus,
3618 "org.freedesktop.systemd1",
3619 "/org/freedesktop/systemd1",
3620 "org.freedesktop.systemd1.Manager",
3621 "GetUnitByPID",
3622 &error,
3623 &reply,
3624 "u", pid);
3625 if (r < 0) {
3626 log_error("Failed to get unit for PID %lu: %s", (unsigned long) pid, bus_error_message(&error, r));
3627 return r;
3628 }
3629
3630 r = sd_bus_message_read(reply, "o", unit);
3631 if (r < 0)
3632 return bus_log_parse_error(r);
3633
3634 return 0;
3635 }
3636
3637 static int show_all(
3638 const char* verb,
3639 sd_bus *bus,
3640 bool show_properties,
3641 bool *new_line,
3642 bool *ellipsized) {
3643
3644 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3645 _cleanup_free_ UnitInfo *unit_infos = NULL;
3646 const UnitInfo *u;
3647 unsigned c;
3648 int r;
3649
3650 r = get_unit_list(bus, &reply, &unit_infos);
3651 if (r < 0)
3652 return r;
3653
3654 pager_open_if_enabled();
3655
3656 c = (unsigned) r;
3657
3658 qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
3659
3660 for (u = unit_infos; u < unit_infos + c; u++) {
3661 _cleanup_free_ char *p = NULL;
3662
3663 if (!output_show_unit(u))
3664 continue;
3665
3666 p = unit_dbus_path_from_name(u->id);
3667 if (!p)
3668 return log_oom();
3669
3670 r = show_one(verb, bus, p, show_properties, new_line, ellipsized);
3671 if (r != 0)
3672 return r;
3673 }
3674
3675 return 0;
3676 }
3677
3678 static int cat(sd_bus *bus, char **args) {
3679 int r = 0;
3680 char **name;
3681
3682 _cleanup_free_ char *unit = NULL, *n = NULL;
3683
3684 assert(bus);
3685 assert(args);
3686
3687 pager_open_if_enabled();
3688
3689 STRV_FOREACH(name, args+1) {
3690 _cleanup_free_ char *fragment_path = NULL;
3691 _cleanup_strv_free_ char **dropin_paths = NULL;
3692 sd_bus_error error;
3693 char **path;
3694
3695 n = unit_name_mangle(*name);
3696 if (!n)
3697 return log_oom();
3698
3699 unit = unit_dbus_path_from_name(n);
3700 if (!unit)
3701 return log_oom();
3702
3703 if (need_daemon_reload(bus, n) > 0)
3704 log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.",
3705 n, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
3706
3707 r = sd_bus_get_property_string(
3708 bus,
3709 "org.freedesktop.systemd1",
3710 unit,
3711 "org.freedesktop.systemd1.Unit",
3712 "FragmentPath",
3713 &error,
3714 &fragment_path);
3715 if (r < 0) {
3716 log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r));
3717 continue;
3718 }
3719
3720 r = sd_bus_get_property_strv(
3721 bus,
3722 "org.freedesktop.systemd1",
3723 unit,
3724 "org.freedesktop.systemd1.Unit",
3725 "DropInPaths",
3726 &error,
3727 &dropin_paths);
3728 if (r < 0) {
3729 log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r));
3730 continue;
3731 }
3732
3733 if (!isempty(fragment_path)) {
3734 fprintf(stdout, "# %s\n", fragment_path);
3735 fflush(stdout);
3736 r = sendfile_full(STDOUT_FILENO, fragment_path);
3737 if (r < 0) {
3738 log_warning("Failed to cat %s: %s", fragment_path, strerror(-r));
3739 continue;
3740 }
3741 }
3742
3743 STRV_FOREACH(path, dropin_paths) {
3744 fprintf(stdout, "%s# %s\n",
3745 isempty(fragment_path) && path == dropin_paths ? "" : "\n",
3746 *path);
3747 fflush(stdout);
3748 r = sendfile_full(STDOUT_FILENO, *path);
3749 if (r < 0) {
3750 log_warning("Failed to cat %s: %s", *path, strerror(-r));
3751 continue;
3752 }
3753 }
3754 }
3755
3756 return r;
3757 }
3758
3759 static int show(sd_bus *bus, char **args) {
3760 int r, ret = 0;
3761 bool show_properties, show_status, new_line = false;
3762 char **name;
3763 bool ellipsized = false;
3764
3765 assert(bus);
3766 assert(args);
3767
3768 show_properties = streq(args[0], "show");
3769 show_status = streq(args[0], "status");
3770
3771 if (show_properties)
3772 pager_open_if_enabled();
3773
3774 /* If no argument is specified inspect the manager itself */
3775
3776 if (show_properties && strv_length(args) <= 1)
3777 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line, &ellipsized);
3778
3779 if (show_status && strv_length(args) <= 1)
3780 ret = show_all(args[0], bus, false, &new_line, &ellipsized);
3781 else
3782 STRV_FOREACH(name, args+1) {
3783 _cleanup_free_ char *unit = NULL;
3784 uint32_t id;
3785
3786 if (safe_atou32(*name, &id) < 0) {
3787 _cleanup_free_ char *n = NULL;
3788 /* Interpret as unit name */
3789
3790 n = unit_name_mangle(*name);
3791 if (!n)
3792 return log_oom();
3793
3794 unit = unit_dbus_path_from_name(n);
3795 if (!unit)
3796 return log_oom();
3797
3798 } else if (show_properties) {
3799 /* Interpret as job id */
3800 if (asprintf(&unit, "/org/freedesktop/systemd1/job/%u", id) < 0)
3801 return log_oom();
3802
3803 } else {
3804 /* Interpret as PID */
3805 r = get_unit_dbus_path_by_pid(bus, id, &unit);
3806 if (r < 0)
3807 ret = r;
3808 }
3809
3810 show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
3811 }
3812
3813 if (ellipsized && !arg_quiet)
3814 printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
3815
3816 return ret;
3817 }
3818
3819 static int append_assignment(sd_bus_message *m, const char *assignment) {
3820 const char *eq;
3821 char *field;
3822 int r;
3823
3824 assert(m);
3825 assert(assignment);
3826
3827 eq = strchr(assignment, '=');
3828 if (!eq) {
3829 log_error("Not an assignment: %s", assignment);
3830 return -EINVAL;
3831 }
3832
3833 field = strndupa(assignment, eq - assignment);
3834 eq ++;
3835
3836 r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field);
3837 if (r < 0)
3838 return bus_log_create_error(r);
3839
3840 if (streq(field, "CPUAccounting") ||
3841 streq(field, "MemoryAccounting") ||
3842 streq(field, "BlockIOAccounting")) {
3843
3844 r = parse_boolean(eq);
3845 if (r < 0) {
3846 log_error("Failed to parse boolean assignment %s.", assignment);
3847 return -EINVAL;
3848 }
3849
3850 r = sd_bus_message_append(m, "v", "b", r);
3851
3852 } else if (streq(field, "MemoryLimit")) {
3853 off_t bytes;
3854
3855 r = parse_bytes(eq, &bytes);
3856 if (r < 0) {
3857 log_error("Failed to parse bytes specification %s", assignment);
3858 return -EINVAL;
3859 }
3860
3861 r = sd_bus_message_append(m, "v", "t", (uint64_t) bytes);
3862
3863 } else if (streq(field, "CPUShares") || streq(field, "BlockIOWeight")) {
3864 uint64_t u;
3865
3866 r = safe_atou64(eq, &u);
3867 if (r < 0) {
3868 log_error("Failed to parse %s value %s.", field, eq);
3869 return -EINVAL;
3870 }
3871
3872 r = sd_bus_message_append(m, "v", "t", u);
3873
3874 } else if (streq(field, "DevicePolicy"))
3875 r = sd_bus_message_append(m, "v", "s", eq);
3876
3877 else if (streq(field, "DeviceAllow")) {
3878
3879 if (isempty(eq))
3880 r = sd_bus_message_append(m, "v", "a(ss)", 0);
3881 else {
3882 const char *path, *rwm;
3883 char *e;
3884
3885 e = strchr(eq, ' ');
3886 if (e) {
3887 path = strndupa(eq, e - eq);
3888 rwm = e+1;
3889 } else {
3890 path = eq;
3891 rwm = "";
3892 }
3893
3894 if (!path_startswith(path, "/dev")) {
3895 log_error("%s is not a device file in /dev.", path);
3896 return -EINVAL;
3897 }
3898
3899 r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm);
3900 }
3901
3902 } else if (streq(field, "BlockIOReadBandwidth") || streq(field, "BlockIOWriteBandwidth")) {
3903
3904 if (isempty(eq))
3905 r = sd_bus_message_append(m, "v", "a(st)", 0);
3906 else {
3907 const char *path, *bandwidth;
3908 off_t bytes;
3909 char *e;
3910
3911 e = strchr(eq, ' ');
3912 if (e) {
3913 path = strndupa(eq, e - eq);
3914 bandwidth = e+1;
3915 } else {
3916 log_error("Failed to parse %s value %s.", field, eq);
3917 return -EINVAL;
3918 }
3919
3920 if (!path_startswith(path, "/dev")) {
3921 log_error("%s is not a device file in /dev.", path);
3922 return -EINVAL;
3923 }
3924
3925 r = parse_bytes(bandwidth, &bytes);
3926 if (r < 0) {
3927 log_error("Failed to parse byte value %s.", bandwidth);
3928 return -EINVAL;
3929 }
3930
3931 r = sd_bus_message_append(m, "v", "a(st)", 1, path, (uint64_t) bytes);
3932 }
3933
3934 } else if (streq(field, "BlockIODeviceWeight")) {
3935
3936 if (isempty(eq))
3937 r = sd_bus_message_append(m, "v", "a(st)", 0);
3938 else {
3939 const char *path, *weight;
3940 uint64_t u;
3941 char *e;
3942
3943 e = strchr(eq, ' ');
3944 if (e) {
3945 path = strndupa(eq, e - eq);
3946 weight = e+1;
3947 } else {
3948 log_error("Failed to parse %s value %s.", field, eq);
3949 return -EINVAL;
3950 }
3951
3952 if (!path_startswith(path, "/dev")) {
3953 log_error("%s is not a device file in /dev.", path);
3954 return -EINVAL;
3955 }
3956
3957 r = safe_atou64(weight, &u);
3958 if (r < 0) {
3959 log_error("Failed to parse %s value %s.", field, weight);
3960 return -EINVAL;
3961 }
3962 r = sd_bus_message_append(m, "v", "a(st)", path, u);
3963 }
3964
3965 } else {
3966 log_error("Unknown assignment %s.", assignment);
3967 return -EINVAL;
3968 }
3969
3970 if (r < 0)
3971 return bus_log_create_error(r);
3972
3973 return 0;
3974 }
3975
3976 static int set_property(sd_bus *bus, char **args) {
3977 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
3978 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3979 _cleanup_free_ char *n = NULL;
3980 char **i;
3981 int r;
3982
3983 r = sd_bus_message_new_method_call(
3984 bus,
3985 "org.freedesktop.systemd1",
3986 "/org/freedesktop/systemd1",
3987 "org.freedesktop.systemd1.Manager",
3988 "SetUnitProperties",
3989 &m);
3990 if (r < 0)
3991 return bus_log_create_error(r);
3992
3993 n = unit_name_mangle(args[1]);
3994 if (!n)
3995 return log_oom();
3996
3997 r = sd_bus_message_append(m, "sb", n, arg_runtime);
3998 if (r < 0)
3999 return bus_log_create_error(r);
4000
4001 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
4002 if (r < 0)
4003 return bus_log_create_error(r);
4004
4005 STRV_FOREACH(i, args + 2) {
4006 r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
4007 if (r < 0)
4008 return bus_log_create_error(r);
4009
4010 r = append_assignment(m, *i);
4011 if (r < 0)
4012 return r;
4013
4014 r = sd_bus_message_close_container(m);
4015 if (r < 0)
4016 return bus_log_create_error(r);
4017 }
4018
4019 r = sd_bus_message_close_container(m);
4020 if (r < 0)
4021 return bus_log_create_error(r);
4022
4023 r = sd_bus_call(bus, m, 0, &error, NULL);
4024 if (r < 0) {
4025 log_error("Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
4026 return r;
4027 }
4028
4029 return 0;
4030 }
4031
4032 static int snapshot(sd_bus *bus, char **args) {
4033 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4034 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4035 _cleanup_free_ char *n = NULL, *id = NULL;
4036 const char *path;
4037 int r;
4038
4039 if (strv_length(args) > 1)
4040 n = unit_name_mangle_with_suffix(args[1], ".snapshot");
4041 else
4042 n = strdup("");
4043 if (!n)
4044 return log_oom();
4045
4046 r = sd_bus_call_method(
4047 bus,
4048 "org.freedesktop.systemd1",
4049 "/org/freedesktop/systemd1",
4050 "org.freedesktop.systemd1.Manager",
4051 "CreateSnapshot",
4052 &error,
4053 &reply,
4054 "sb", n, false);
4055 if (r < 0) {
4056 log_error("Failed to create snapshot: %s", bus_error_message(&error, r));
4057 return r;
4058 }
4059
4060 r = sd_bus_message_read(reply, "o", &path);
4061 if (r < 0)
4062 return bus_log_parse_error(r);
4063
4064 r = sd_bus_get_property_string(
4065 bus,
4066 "org.freedesktop.systemd1",
4067 path,
4068 "org.freedesktop.systemd1.Unit",
4069 "Id",
4070 &error,
4071 &id);
4072 if (r < 0) {
4073 log_error("Failed to get ID of snapshot: %s", bus_error_message(&error, r));
4074 return r;
4075 }
4076
4077 if (!arg_quiet)
4078 puts(id);
4079
4080 return 0;
4081 }
4082
4083 static int delete_snapshot(sd_bus *bus, char **args) {
4084 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4085 char **name;
4086 int r;
4087
4088 assert(args);
4089
4090 STRV_FOREACH(name, args+1) {
4091 _cleanup_free_ char *n = NULL;
4092
4093 n = unit_name_mangle_with_suffix(*name, ".snapshot");
4094 if (!n)
4095 return log_oom();
4096
4097 r = sd_bus_call_method(
4098 bus,
4099 "org.freedesktop.systemd1",
4100 "/org/freedesktop/systemd1",
4101 "org.freedesktop.systemd1.Manager",
4102 "RemoveSnapshot",
4103 &error,
4104 NULL,
4105 "s", n);
4106 if (r < 0) {
4107 log_error("Failed to remove snapshot %s: %s", n, bus_error_message(&error, r));
4108 return r;
4109 }
4110 }
4111
4112 return 0;
4113 }
4114
4115 static int daemon_reload(sd_bus *bus, char **args) {
4116 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4117 const char *method;
4118 int r;
4119
4120 if (arg_action == ACTION_RELOAD)
4121 method = "Reload";
4122 else if (arg_action == ACTION_REEXEC)
4123 method = "Reexecute";
4124 else {
4125 assert(arg_action == ACTION_SYSTEMCTL);
4126
4127 method =
4128 streq(args[0], "clear-jobs") ||
4129 streq(args[0], "cancel") ? "ClearJobs" :
4130 streq(args[0], "daemon-reexec") ? "Reexecute" :
4131 streq(args[0], "reset-failed") ? "ResetFailed" :
4132 streq(args[0], "halt") ? "Halt" :
4133 streq(args[0], "poweroff") ? "PowerOff" :
4134 streq(args[0], "reboot") ? "Reboot" :
4135 streq(args[0], "kexec") ? "KExec" :
4136 streq(args[0], "exit") ? "Exit" :
4137 /* "daemon-reload" */ "Reload";
4138 }
4139
4140 r = sd_bus_call_method(
4141 bus,
4142 "org.freedesktop.systemd1",
4143 "/org/freedesktop/systemd1",
4144 "org.freedesktop.systemd1.Manager",
4145 method,
4146 &error,
4147 NULL,
4148 NULL);
4149
4150 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
4151 /* There's always a fallback possible for
4152 * legacy actions. */
4153 r = -EADDRNOTAVAIL;
4154 else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute"))
4155 /* On reexecution, we expect a disconnect, not a
4156 * reply */
4157 r = 0;
4158 else if (r < 0)
4159 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4160
4161 return r < 0 ? r : 0;
4162 }
4163
4164 static int reset_failed(sd_bus *bus, char **args) {
4165 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4166 char **name;
4167 int r;
4168
4169 if (strv_length(args) <= 1)
4170 return daemon_reload(bus, args);
4171
4172 STRV_FOREACH(name, args+1) {
4173 _cleanup_free_ char *n;
4174
4175 n = unit_name_mangle(*name);
4176 if (!n)
4177 return log_oom();
4178
4179 r = sd_bus_call_method(
4180 bus,
4181 "org.freedesktop.systemd1",
4182 "/org/freedesktop/systemd1",
4183 "org.freedesktop.systemd1.Manager",
4184 "ResetFailedUnit",
4185 &error,
4186 NULL,
4187 "s", n);
4188 if (r < 0) {
4189 log_error("Failed to reset failed state of unit %s: %s", n, bus_error_message(&error, r));
4190 return r;
4191 }
4192 }
4193
4194 return 0;
4195 }
4196
4197 static int show_environment(sd_bus *bus, char **args) {
4198 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4199 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4200 const char *text;
4201 int r;
4202
4203 pager_open_if_enabled();
4204
4205 r = sd_bus_get_property(
4206 bus,
4207 "org.freedesktop.systemd1",
4208 "/org/freedesktop/systemd1",
4209 "org.freedesktop.systemd1.Manager",
4210 "Environment",
4211 &error,
4212 &reply,
4213 "as");
4214 if (r < 0) {
4215 log_error("Failed to get environment: %s", bus_error_message(&error, r));
4216 return r;
4217 }
4218
4219 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
4220 if (r < 0)
4221 return bus_log_parse_error(r);
4222
4223 while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0)
4224 puts(text);
4225 if (r < 0)
4226 return bus_log_parse_error(r);
4227
4228 r = sd_bus_message_exit_container(reply);
4229 if (r < 0)
4230 return bus_log_parse_error(r);
4231
4232 return 0;
4233 }
4234
4235 static int switch_root(sd_bus *bus, char **args) {
4236 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4237 _cleanup_free_ char *init = NULL;
4238 const char *root;
4239 unsigned l;
4240 int r;
4241
4242 l = strv_length(args);
4243 if (l < 2 || l > 3) {
4244 log_error("Wrong number of arguments.");
4245 return -EINVAL;
4246 }
4247
4248 root = args[1];
4249
4250 if (l >= 3)
4251 init = strdup(args[2]);
4252 else {
4253 parse_env_file("/proc/cmdline", WHITESPACE,
4254 "init", &init,
4255 NULL);
4256
4257 if (!init)
4258 init = strdup("");
4259 }
4260
4261 if (!init)
4262 return log_oom();
4263
4264 log_debug("switching root - root: %s; init: %s", root, init);
4265
4266 r = sd_bus_call_method(
4267 bus,
4268 "org.freedesktop.systemd1",
4269 "/org/freedesktop/systemd1",
4270 "org.freedesktop.systemd1.Manager",
4271 "SwitchRoot",
4272 &error,
4273 NULL,
4274 "ss", root, init);
4275 if (r < 0) {
4276 log_error("Failed to switch root: %s", bus_error_message(&error, r));
4277 return r;
4278 }
4279
4280 return 0;
4281 }
4282
4283 static int set_environment(sd_bus *bus, char **args) {
4284 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4285 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4286 const char *method;
4287 int r;
4288
4289 assert(bus);
4290 assert(args);
4291
4292 method = streq(args[0], "set-environment")
4293 ? "SetEnvironment"
4294 : "UnsetEnvironment";
4295
4296 r = sd_bus_message_new_method_call(
4297 bus,
4298 "org.freedesktop.systemd1",
4299 "/org/freedesktop/systemd1",
4300 "org.freedesktop.systemd1.Manager",
4301 method,
4302 &m);
4303 if (r < 0)
4304 return bus_log_create_error(r);
4305
4306 r = sd_bus_message_append_strv(m, args + 1);
4307 if (r < 0)
4308 return bus_log_create_error(r);
4309
4310 r = sd_bus_call(bus, m, 0, &error, NULL);
4311 if (r < 0) {
4312 log_error("Failed to set environment: %s", bus_error_message(&error, r));
4313 return r;
4314 }
4315
4316 return 0;
4317 }
4318
4319 static int enable_sysv_units(const char *verb, char **args) {
4320 int r = 0;
4321
4322 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
4323 unsigned f = 1, t = 1;
4324 _cleanup_lookup_paths_free_ LookupPaths paths = {};
4325
4326 if (arg_scope != UNIT_FILE_SYSTEM)
4327 return 0;
4328
4329 if (!streq(verb, "enable") &&
4330 !streq(verb, "disable") &&
4331 !streq(verb, "is-enabled"))
4332 return 0;
4333
4334 /* Processes all SysV units, and reshuffles the array so that
4335 * afterwards only the native units remain */
4336
4337 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
4338 if (r < 0)
4339 return r;
4340
4341 r = 0;
4342 for (f = 0; args[f]; f++) {
4343 const char *name;
4344 _cleanup_free_ char *p = NULL, *q = NULL;
4345 bool found_native = false, found_sysv;
4346 unsigned c = 1;
4347 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
4348 char **k, *l;
4349 int j;
4350 pid_t pid;
4351 siginfo_t status;
4352
4353 name = args[f];
4354
4355 if (!endswith(name, ".service"))
4356 continue;
4357
4358 if (path_is_absolute(name))
4359 continue;
4360
4361 STRV_FOREACH(k, paths.unit_path) {
4362 if (!isempty(arg_root))
4363 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
4364 else
4365 asprintf(&p, "%s/%s", *k, name);
4366
4367 if (!p) {
4368 r = log_oom();
4369 goto finish;
4370 }
4371
4372 found_native = access(p, F_OK) >= 0;
4373 free(p);
4374 p = NULL;
4375
4376 if (found_native)
4377 break;
4378 }
4379
4380 if (found_native)
4381 continue;
4382
4383 if (!isempty(arg_root))
4384 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
4385 else
4386 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
4387 if (!p) {
4388 r = log_oom();
4389 goto finish;
4390 }
4391
4392 p[strlen(p) - sizeof(".service") + 1] = 0;
4393 found_sysv = access(p, F_OK) >= 0;
4394
4395 if (!found_sysv)
4396 continue;
4397
4398 /* Mark this entry, so that we don't try enabling it as native unit */
4399 args[f] = (char*) "";
4400
4401 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4402
4403 if (!isempty(arg_root))
4404 argv[c++] = q = strappend("--root=", arg_root);
4405
4406 argv[c++] = path_get_file_name(p);
4407 argv[c++] =
4408 streq(verb, "enable") ? "on" :
4409 streq(verb, "disable") ? "off" : "--level=5";
4410 argv[c] = NULL;
4411
4412 l = strv_join((char**)argv, " ");
4413 if (!l) {
4414 r = log_oom();
4415 goto finish;
4416 }
4417
4418 log_info("Executing %s", l);
4419 free(l);
4420
4421 pid = fork();
4422 if (pid < 0) {
4423 log_error("Failed to fork: %m");
4424 r = -errno;
4425 goto finish;
4426 } else if (pid == 0) {
4427 /* Child */
4428
4429 execv(argv[0], (char**) argv);
4430 _exit(EXIT_FAILURE);
4431 }
4432
4433 j = wait_for_terminate(pid, &status);
4434 if (j < 0) {
4435 log_error("Failed to wait for child: %s", strerror(-r));
4436 r = j;
4437 goto finish;
4438 }
4439
4440 if (status.si_code == CLD_EXITED) {
4441 if (streq(verb, "is-enabled")) {
4442 if (status.si_status == 0) {
4443 if (!arg_quiet)
4444 puts("enabled");
4445 r = 1;
4446 } else {
4447 if (!arg_quiet)
4448 puts("disabled");
4449 }
4450
4451 } else if (status.si_status != 0) {
4452 r = -EINVAL;
4453 goto finish;
4454 }
4455 } else {
4456 r = -EPROTO;
4457 goto finish;
4458 }
4459 }
4460
4461 finish:
4462 /* Drop all SysV units */
4463 for (f = 0, t = 0; args[f]; f++) {
4464
4465 if (isempty(args[f]))
4466 continue;
4467
4468 args[t++] = args[f];
4469 }
4470
4471 args[t] = NULL;
4472
4473 #endif
4474 return r;
4475 }
4476
4477 static int mangle_names(char **original_names, char ***mangled_names) {
4478 char **i, **l, **name;
4479
4480 l = new(char*, strv_length(original_names) + 1);
4481 if (!l)
4482 return log_oom();
4483
4484 i = l;
4485 STRV_FOREACH(name, original_names) {
4486
4487 /* When enabling units qualified path names are OK,
4488 * too, hence allow them explicitly. */
4489
4490 if (is_path(*name))
4491 *i = strdup(*name);
4492 else
4493 *i = unit_name_mangle(*name);
4494
4495 if (!*i) {
4496 strv_free(l);
4497 return log_oom();
4498 }
4499
4500 i++;
4501 }
4502
4503 *i = NULL;
4504 *mangled_names = l;
4505
4506 return 0;
4507 }
4508
4509 static int enable_unit(sd_bus *bus, char **args) {
4510 _cleanup_strv_free_ char **mangled_names = NULL;
4511 const char *verb = args[0];
4512 UnitFileChange *changes = NULL;
4513 unsigned n_changes = 0;
4514 int carries_install_info = -1;
4515 int r;
4516
4517 if (!args[1])
4518 return 0;
4519
4520 r = mangle_names(args+1, &mangled_names);
4521 if (r < 0)
4522 return r;
4523
4524 r = enable_sysv_units(verb, mangled_names);
4525 if (r < 0)
4526 return r;
4527
4528 if (!bus || avoid_bus()) {
4529 if (streq(verb, "enable")) {
4530 r = unit_file_enable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4531 carries_install_info = r;
4532 } else if (streq(verb, "disable"))
4533 r = unit_file_disable(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4534 else if (streq(verb, "reenable")) {
4535 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4536 carries_install_info = r;
4537 } else if (streq(verb, "link"))
4538 r = unit_file_link(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4539 else if (streq(verb, "preset")) {
4540 r = unit_file_preset(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4541 carries_install_info = r;
4542 } else if (streq(verb, "mask"))
4543 r = unit_file_mask(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4544 else if (streq(verb, "unmask"))
4545 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4546 else
4547 assert_not_reached("Unknown verb");
4548
4549 if (r < 0) {
4550 log_error("Operation failed: %s", strerror(-r));
4551 goto finish;
4552 }
4553
4554 if (!arg_quiet)
4555 dump_unit_file_changes(changes, n_changes);
4556
4557 r = 0;
4558 } else {
4559 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
4560 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4561 int expect_carries_install_info = false;
4562 bool send_force = true;
4563 const char *method;
4564
4565 if (streq(verb, "enable")) {
4566 method = "EnableUnitFiles";
4567 expect_carries_install_info = true;
4568 } else if (streq(verb, "disable")) {
4569 method = "DisableUnitFiles";
4570 send_force = false;
4571 } else if (streq(verb, "reenable")) {
4572 method = "ReenableUnitFiles";
4573 expect_carries_install_info = true;
4574 } else if (streq(verb, "link"))
4575 method = "LinkUnitFiles";
4576 else if (streq(verb, "preset")) {
4577 method = "PresetUnitFiles";
4578 expect_carries_install_info = true;
4579 } else if (streq(verb, "mask"))
4580 method = "MaskUnitFiles";
4581 else if (streq(verb, "unmask")) {
4582 method = "UnmaskUnitFiles";
4583 send_force = false;
4584 } else
4585 assert_not_reached("Unknown verb");
4586
4587 r = sd_bus_message_new_method_call(
4588 bus,
4589 "org.freedesktop.systemd1",
4590 "/org/freedesktop/systemd1",
4591 "org.freedesktop.systemd1.Manager",
4592 method,
4593 &m);
4594 if (r < 0)
4595 return bus_log_create_error(r);
4596
4597 r = sd_bus_message_append_strv(m, mangled_names);
4598 if (r < 0)
4599 return bus_log_create_error(r);
4600
4601 r = sd_bus_message_append(m, "b", arg_runtime);
4602 if (r < 0)
4603 return bus_log_create_error(r);
4604
4605 if (send_force) {
4606 r = sd_bus_message_append(m, "b", arg_force);
4607 if (r < 0)
4608 return bus_log_create_error(r);
4609 }
4610
4611 r = sd_bus_call(bus, m, 0, &error, &reply);
4612 if (r < 0) {
4613 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4614 return r;
4615 }
4616
4617 if (expect_carries_install_info) {
4618 r = sd_bus_message_read(reply, "b", &carries_install_info);
4619 if (r < 0)
4620 return bus_log_parse_error(r);
4621 }
4622
4623 r = deserialize_and_dump_unit_file_changes(reply);
4624 if (r < 0)
4625 return r;
4626
4627 /* Try to reload if enabeld */
4628 if (!arg_no_reload)
4629 r = daemon_reload(bus, args);
4630 else
4631 r = 0;
4632 }
4633
4634 if (carries_install_info == 0)
4635 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
4636 "using systemctl.\n"
4637 "Possible reasons for having this kind of units are:\n"
4638 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4639 " .wants/ or .requires/ directory.\n"
4640 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4641 " a requirement dependency on it.\n"
4642 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4643 " D-Bus, udev, scripted systemctl call, ...).\n");
4644
4645 finish:
4646 unit_file_changes_free(changes, n_changes);
4647
4648 return r;
4649 }
4650
4651 static int unit_is_enabled(sd_bus *bus, char **args) {
4652
4653 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4654 _cleanup_strv_free_ char **mangled_names = NULL;
4655 bool enabled;
4656 char **name;
4657 int r;
4658
4659 r = mangle_names(args+1, &mangled_names);
4660 if (r < 0)
4661 return r;
4662
4663 r = enable_sysv_units(args[0], mangled_names);
4664 if (r < 0)
4665 return r;
4666
4667 enabled = r > 0;
4668
4669 if (!bus || avoid_bus()) {
4670
4671 STRV_FOREACH(name, mangled_names) {
4672 UnitFileState state;
4673
4674 state = unit_file_get_state(arg_scope, arg_root, *name);
4675 if (state < 0) {
4676 log_error("Failed to get unit file state for %s: %s", *name, strerror(-state));
4677 return state;
4678 }
4679
4680 if (state == UNIT_FILE_ENABLED ||
4681 state == UNIT_FILE_ENABLED_RUNTIME ||
4682 state == UNIT_FILE_STATIC)
4683 enabled = true;
4684
4685 if (!arg_quiet)
4686 puts(unit_file_state_to_string(state));
4687 }
4688
4689 } else {
4690 STRV_FOREACH(name, mangled_names) {
4691 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4692 const char *s;
4693
4694 r = sd_bus_call_method(
4695 bus,
4696 "org.freedesktop.systemd1",
4697 "/org/freedesktop/systemd1",
4698 "org.freedesktop.systemd1.Manager",
4699 "GetUnitFileState",
4700 &error,
4701 &reply,
4702 "s", name);
4703 if (r < 0) {
4704 log_error("Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
4705 return r;
4706 }
4707
4708 r = sd_bus_message_read(reply, "s", &s);
4709 if (r < 0)
4710 return bus_log_parse_error(r);
4711
4712 if (streq(s, "enabled") ||
4713 streq(s, "enabled-runtime") ||
4714 streq(s, "static"))
4715 enabled = true;
4716
4717 if (!arg_quiet)
4718 puts(s);
4719 }
4720 }
4721
4722 return !enabled;
4723 }
4724
4725 static int systemctl_help(void) {
4726
4727 pager_open_if_enabled();
4728
4729 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4730 "Query or send control commands to the systemd manager.\n\n"
4731 " -h --help Show this help\n"
4732 " --version Show package version\n"
4733 " --system Connect to system manager\n"
4734 " --user Connect to user service manager\n"
4735 " -H --host=[USER@]HOST\n"
4736 " Operate on remote host\n"
4737 " -M --machine=CONTAINER\n"
4738 " Operate on local container\n"
4739 " -t --type=TYPE List only units of a particular type\n"
4740 " --state=STATE List only units with particular LOAD or SUB or ACTIVE state\n"
4741 " -p --property=NAME Show only properties by this name\n"
4742 " -a --all Show all loaded units/properties, including dead/empty\n"
4743 " ones. To list all units installed on the system, use\n"
4744 " the 'list-unit-files' command instead.\n"
4745 " -l --full Don't ellipsize unit names on output\n"
4746 " --reverse Show reverse dependencies with 'list-dependencies'\n"
4747 " --job-mode=MODE Specify how to deal with already queued jobs, when\n"
4748 " queueing a new job\n"
4749 " --show-types When showing sockets, explicitly show their type\n"
4750 " -i --ignore-inhibitors\n"
4751 " When shutting down or sleeping, ignore inhibitors\n"
4752 " --kill-who=WHO Who to send signal to\n"
4753 " -s --signal=SIGNAL Which signal to send\n"
4754 " -q --quiet Suppress output\n"
4755 " --no-block Do not wait until operation finished\n"
4756 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4757 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4758 " configuration\n"
4759 " --no-legend Do not print a legend (column headers and hints)\n"
4760 " --no-pager Do not pipe output into a pager\n"
4761 " --no-ask-password\n"
4762 " Do not ask for system passwords\n"
4763 " --global Enable/disable unit files globally\n"
4764 " --runtime Enable unit files only temporarily until next reboot\n"
4765 " -f --force When enabling unit files, override existing symlinks\n"
4766 " When shutting down, execute action immediately\n"
4767 " --root=PATH Enable unit files in the specified root directory\n"
4768 " -n --lines=INTEGER Number of journal entries to show\n"
4769 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4770 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4771 "Unit Commands:\n"
4772 " list-units List loaded units\n"
4773 " list-sockets List loaded sockets ordered by address\n"
4774 " list-timers List loaded timers ordered by next elapse\n"
4775 " start [NAME...] Start (activate) one or more units\n"
4776 " stop [NAME...] Stop (deactivate) one or more units\n"
4777 " reload [NAME...] Reload one or more units\n"
4778 " restart [NAME...] Start or restart one or more units\n"
4779 " try-restart [NAME...] Restart one or more units if active\n"
4780 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4781 " otherwise start or restart\n"
4782 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4783 " otherwise restart if active\n"
4784 " isolate [NAME] Start one unit and stop all others\n"
4785 " kill [NAME...] Send signal to processes of a unit\n"
4786 " is-active [NAME...] Check whether units are active\n"
4787 " is-failed [NAME...] Check whether units are failed\n"
4788 " status [NAME...|PID...] Show runtime status of one or more units\n"
4789 " show [NAME...|JOB...] Show properties of one or more\n"
4790 " units/jobs or the manager\n"
4791 " cat [NAME...] Show files and drop-ins of one or more units\n"
4792 " set-property [NAME] [ASSIGNMENT...]\n"
4793 " Sets one or more properties of a unit\n"
4794 " help [NAME...|PID...] Show manual for one or more units\n"
4795 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4796 " units\n"
4797 " list-dependencies [NAME] Recursively show units which are required\n"
4798 " or wanted by this unit or by which this\n"
4799 " unit is required or wanted\n\n"
4800 "Unit File Commands:\n"
4801 " list-unit-files List installed unit files\n"
4802 " enable [NAME...] Enable one or more unit files\n"
4803 " disable [NAME...] Disable one or more unit files\n"
4804 " reenable [NAME...] Reenable one or more unit files\n"
4805 " preset [NAME...] Enable/disable one or more unit files\n"
4806 " based on preset configuration\n"
4807 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4808 " mask [NAME...] Mask one or more units\n"
4809 " unmask [NAME...] Unmask one or more units\n"
4810 " link [PATH...] Link one or more units files into\n"
4811 " the search path\n"
4812 " get-default Get the name of the default target\n"
4813 " set-default NAME Set the default target\n\n"
4814 "Job Commands:\n"
4815 " list-jobs List jobs\n"
4816 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4817 "Snapshot Commands:\n"
4818 " snapshot [NAME] Create a snapshot\n"
4819 " delete [NAME...] Remove one or more snapshots\n\n"
4820 "Environment Commands:\n"
4821 " show-environment Dump environment\n"
4822 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4823 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4824 "Manager Lifecycle Commands:\n"
4825 " daemon-reload Reload systemd manager configuration\n"
4826 " daemon-reexec Reexecute systemd manager\n\n"
4827 "System Commands:\n"
4828 " default Enter system default mode\n"
4829 " rescue Enter system rescue mode\n"
4830 " emergency Enter system emergency mode\n"
4831 " halt Shut down and halt the system\n"
4832 " poweroff Shut down and power-off the system\n"
4833 " reboot [ARG] Shut down and reboot the system\n"
4834 " kexec Shut down and reboot the system with kexec\n"
4835 " exit Request user instance exit\n"
4836 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4837 " suspend Suspend the system\n"
4838 " hibernate Hibernate the system\n"
4839 " hybrid-sleep Hibernate and suspend the system\n",
4840 program_invocation_short_name);
4841
4842 return 0;
4843 }
4844
4845 static int halt_help(void) {
4846
4847 printf("%s [OPTIONS...]%s\n\n"
4848 "%s the system.\n\n"
4849 " --help Show this help\n"
4850 " --halt Halt the machine\n"
4851 " -p --poweroff Switch off the machine\n"
4852 " --reboot Reboot the machine\n"
4853 " -f --force Force immediate halt/power-off/reboot\n"
4854 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4855 " -d --no-wtmp Don't write wtmp record\n"
4856 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4857 program_invocation_short_name,
4858 arg_action == ACTION_REBOOT ? " [ARG]" : "",
4859 arg_action == ACTION_REBOOT ? "Reboot" :
4860 arg_action == ACTION_POWEROFF ? "Power off" :
4861 "Halt");
4862
4863 return 0;
4864 }
4865
4866 static int shutdown_help(void) {
4867
4868 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4869 "Shut down the system.\n\n"
4870 " --help Show this help\n"
4871 " -H --halt Halt the machine\n"
4872 " -P --poweroff Power-off the machine\n"
4873 " -r --reboot Reboot the machine\n"
4874 " -h Equivalent to --poweroff, overridden by --halt\n"
4875 " -k Don't halt/power-off/reboot, just send warnings\n"
4876 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4877 " -c Cancel a pending shutdown\n",
4878 program_invocation_short_name);
4879
4880 return 0;
4881 }
4882
4883 static int telinit_help(void) {
4884
4885 printf("%s [OPTIONS...] {COMMAND}\n\n"
4886 "Send control commands to the init daemon.\n\n"
4887 " --help Show this help\n"
4888 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4889 "Commands:\n"
4890 " 0 Power-off the machine\n"
4891 " 6 Reboot the machine\n"
4892 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4893 " 1, s, S Enter rescue mode\n"
4894 " q, Q Reload init daemon configuration\n"
4895 " u, U Reexecute init daemon\n",
4896 program_invocation_short_name);
4897
4898 return 0;
4899 }
4900
4901 static int runlevel_help(void) {
4902
4903 printf("%s [OPTIONS...]\n\n"
4904 "Prints the previous and current runlevel of the init system.\n\n"
4905 " --help Show this help\n",
4906 program_invocation_short_name);
4907
4908 return 0;
4909 }
4910
4911 static int help_types(void) {
4912 int i;
4913 const char *t;
4914
4915 puts("Available unit types:");
4916 for (i = 0; i < _UNIT_TYPE_MAX; i++) {
4917 t = unit_type_to_string(i);
4918 if (t)
4919 puts(t);
4920 }
4921
4922 return 0;
4923 }
4924
4925 static int systemctl_parse_argv(int argc, char *argv[]) {
4926
4927 enum {
4928 ARG_FAIL = 0x100,
4929 ARG_REVERSE,
4930 ARG_AFTER,
4931 ARG_BEFORE,
4932 ARG_SHOW_TYPES,
4933 ARG_IRREVERSIBLE,
4934 ARG_IGNORE_DEPENDENCIES,
4935 ARG_VERSION,
4936 ARG_USER,
4937 ARG_SYSTEM,
4938 ARG_GLOBAL,
4939 ARG_NO_BLOCK,
4940 ARG_NO_LEGEND,
4941 ARG_NO_PAGER,
4942 ARG_NO_WALL,
4943 ARG_ROOT,
4944 ARG_NO_RELOAD,
4945 ARG_KILL_WHO,
4946 ARG_NO_ASK_PASSWORD,
4947 ARG_FAILED,
4948 ARG_RUNTIME,
4949 ARG_FORCE,
4950 ARG_PLAIN,
4951 ARG_STATE,
4952 ARG_JOB_MODE
4953 };
4954
4955 static const struct option options[] = {
4956 { "help", no_argument, NULL, 'h' },
4957 { "version", no_argument, NULL, ARG_VERSION },
4958 { "type", required_argument, NULL, 't' },
4959 { "property", required_argument, NULL, 'p' },
4960 { "all", no_argument, NULL, 'a' },
4961 { "reverse", no_argument, NULL, ARG_REVERSE },
4962 { "after", no_argument, NULL, ARG_AFTER },
4963 { "before", no_argument, NULL, ARG_BEFORE },
4964 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
4965 { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
4966 { "full", no_argument, NULL, 'l' },
4967 { "job-mode", required_argument, NULL, ARG_JOB_MODE },
4968 { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */
4969 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */
4970 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */
4971 { "ignore-inhibitors", no_argument, NULL, 'i' },
4972 { "user", no_argument, NULL, ARG_USER },
4973 { "system", no_argument, NULL, ARG_SYSTEM },
4974 { "global", no_argument, NULL, ARG_GLOBAL },
4975 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4976 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4977 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4978 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4979 { "quiet", no_argument, NULL, 'q' },
4980 { "root", required_argument, NULL, ARG_ROOT },
4981 { "force", no_argument, NULL, ARG_FORCE },
4982 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4983 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4984 { "signal", required_argument, NULL, 's' },
4985 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4986 { "host", required_argument, NULL, 'H' },
4987 { "machine", required_argument, NULL, 'M' },
4988 { "runtime", no_argument, NULL, ARG_RUNTIME },
4989 { "lines", required_argument, NULL, 'n' },
4990 { "output", required_argument, NULL, 'o' },
4991 { "plain", no_argument, NULL, ARG_PLAIN },
4992 { "state", required_argument, NULL, ARG_STATE },
4993 {}
4994 };
4995
4996 int c;
4997
4998 assert(argc >= 0);
4999 assert(argv);
5000
5001 while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:i", options, NULL)) >= 0) {
5002
5003 switch (c) {
5004
5005 case 'h':
5006 return systemctl_help();
5007
5008 case ARG_VERSION:
5009 puts(PACKAGE_STRING);
5010 puts(SYSTEMD_FEATURES);
5011 return 0;
5012
5013 case 't': {
5014 char *word, *state;
5015 size_t size;
5016
5017 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5018 _cleanup_free_ char *type;
5019
5020 type = strndup(word, size);
5021 if (!type)
5022 return -ENOMEM;
5023
5024 if (streq(type, "help")) {
5025 help_types();
5026 return 0;
5027 }
5028
5029 if (unit_type_from_string(type) >= 0) {
5030 if (strv_push(&arg_types, type))
5031 return log_oom();
5032 type = NULL;
5033 continue;
5034 }
5035
5036 /* It's much nicer to use --state= for
5037 * load states, but let's support this
5038 * in --types= too for compatibility
5039 * with old versions */
5040 if (unit_load_state_from_string(optarg) >= 0) {
5041 if (strv_push(&arg_states, type) < 0)
5042 return log_oom();
5043 type = NULL;
5044 continue;
5045 }
5046
5047 log_error("Unknown unit type or load state '%s'.", type);
5048 log_info("Use -t help to see a list of allowed values.");
5049 return -EINVAL;
5050 }
5051
5052 break;
5053 }
5054
5055 case 'p': {
5056 /* Make sure that if the empty property list
5057 was specified, we won't show any properties. */
5058 if (isempty(optarg) && !arg_properties) {
5059 arg_properties = new0(char*, 1);
5060 if (!arg_properties)
5061 return log_oom();
5062 } else {
5063 char *word, *state;
5064 size_t size;
5065
5066 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5067 char *prop;
5068
5069 prop = strndup(word, size);
5070 if (!prop)
5071 return log_oom();
5072
5073 if (strv_push(&arg_properties, prop) < 0) {
5074 free(prop);
5075 return log_oom();
5076 }
5077 }
5078 }
5079
5080 /* If the user asked for a particular
5081 * property, show it to him, even if it is
5082 * empty. */
5083 arg_all = true;
5084
5085 break;
5086 }
5087
5088 case 'a':
5089 arg_all = true;
5090 break;
5091
5092 case ARG_REVERSE:
5093 arg_dependency = DEPENDENCY_REVERSE;
5094 break;
5095
5096 case ARG_AFTER:
5097 arg_dependency = DEPENDENCY_AFTER;
5098 break;
5099
5100 case ARG_BEFORE:
5101 arg_dependency = DEPENDENCY_BEFORE;
5102 break;
5103
5104 case ARG_SHOW_TYPES:
5105 arg_show_types = true;
5106 break;
5107
5108 case ARG_JOB_MODE:
5109 arg_job_mode = optarg;
5110 break;
5111
5112 case ARG_FAIL:
5113 arg_job_mode = "fail";
5114 break;
5115
5116 case ARG_IRREVERSIBLE:
5117 arg_job_mode = "replace-irreversibly";
5118 break;
5119
5120 case ARG_IGNORE_DEPENDENCIES:
5121 arg_job_mode = "ignore-dependencies";
5122 break;
5123
5124 case ARG_USER:
5125 arg_scope = UNIT_FILE_USER;
5126 break;
5127
5128 case ARG_SYSTEM:
5129 arg_scope = UNIT_FILE_SYSTEM;
5130 break;
5131
5132 case ARG_GLOBAL:
5133 arg_scope = UNIT_FILE_GLOBAL;
5134 break;
5135
5136 case ARG_NO_BLOCK:
5137 arg_no_block = true;
5138 break;
5139
5140 case ARG_NO_LEGEND:
5141 arg_no_legend = true;
5142 break;
5143
5144 case ARG_NO_PAGER:
5145 arg_no_pager = true;
5146 break;
5147
5148 case ARG_NO_WALL:
5149 arg_no_wall = true;
5150 break;
5151
5152 case ARG_ROOT:
5153 arg_root = optarg;
5154 break;
5155
5156 case 'l':
5157 arg_full = true;
5158 break;
5159
5160 case ARG_FAILED:
5161 if (strv_extend(&arg_states, "failed") < 0)
5162 return log_oom();
5163
5164 break;
5165
5166 case 'q':
5167 arg_quiet = true;
5168 break;
5169
5170 case ARG_FORCE:
5171 arg_force ++;
5172 break;
5173
5174 case 'f':
5175 arg_force ++;
5176 break;
5177
5178 case ARG_NO_RELOAD:
5179 arg_no_reload = true;
5180 break;
5181
5182 case ARG_KILL_WHO:
5183 arg_kill_who = optarg;
5184 break;
5185
5186 case 's':
5187 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
5188 log_error("Failed to parse signal string %s.", optarg);
5189 return -EINVAL;
5190 }
5191 break;
5192
5193 case ARG_NO_ASK_PASSWORD:
5194 arg_ask_password = false;
5195 break;
5196
5197 case 'H':
5198 arg_transport = BUS_TRANSPORT_REMOTE;
5199 arg_host = optarg;
5200 break;
5201
5202 case 'M':
5203 arg_transport = BUS_TRANSPORT_CONTAINER;
5204 arg_host = optarg;
5205 break;
5206
5207 case ARG_RUNTIME:
5208 arg_runtime = true;
5209 break;
5210
5211 case 'n':
5212 if (safe_atou(optarg, &arg_lines) < 0) {
5213 log_error("Failed to parse lines '%s'", optarg);
5214 return -EINVAL;
5215 }
5216 break;
5217
5218 case 'o':
5219 arg_output = output_mode_from_string(optarg);
5220 if (arg_output < 0) {
5221 log_error("Unknown output '%s'.", optarg);
5222 return -EINVAL;
5223 }
5224 break;
5225
5226 case 'i':
5227 arg_ignore_inhibitors = true;
5228 break;
5229
5230 case ARG_PLAIN:
5231 arg_plain = true;
5232 break;
5233
5234 case ARG_STATE: {
5235 char *word, *state;
5236 size_t size;
5237
5238 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5239 char *s;
5240
5241 s = strndup(word, size);
5242 if (!s)
5243 return log_oom();
5244
5245 if (strv_push(&arg_states, s) < 0) {
5246 free(s);
5247 return log_oom();
5248 }
5249 }
5250 break;
5251 }
5252
5253 case '?':
5254 return -EINVAL;
5255
5256 default:
5257 assert_not_reached("Unhandled option");
5258 }
5259 }
5260
5261 if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
5262 log_error("Cannot access user instance remotely.");
5263 return -EINVAL;
5264 }
5265
5266 return 1;
5267 }
5268
5269 static int halt_parse_argv(int argc, char *argv[]) {
5270
5271 enum {
5272 ARG_HELP = 0x100,
5273 ARG_HALT,
5274 ARG_REBOOT,
5275 ARG_NO_WALL
5276 };
5277
5278 static const struct option options[] = {
5279 { "help", no_argument, NULL, ARG_HELP },
5280 { "halt", no_argument, NULL, ARG_HALT },
5281 { "poweroff", no_argument, NULL, 'p' },
5282 { "reboot", no_argument, NULL, ARG_REBOOT },
5283 { "force", no_argument, NULL, 'f' },
5284 { "wtmp-only", no_argument, NULL, 'w' },
5285 { "no-wtmp", no_argument, NULL, 'd' },
5286 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5287 {}
5288 };
5289
5290 int c, r, runlevel;
5291
5292 assert(argc >= 0);
5293 assert(argv);
5294
5295 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
5296 if (runlevel == '0' || runlevel == '6')
5297 arg_force = 2;
5298
5299 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
5300 switch (c) {
5301
5302 case ARG_HELP:
5303 return halt_help();
5304
5305 case ARG_HALT:
5306 arg_action = ACTION_HALT;
5307 break;
5308
5309 case 'p':
5310 if (arg_action != ACTION_REBOOT)
5311 arg_action = ACTION_POWEROFF;
5312 break;
5313
5314 case ARG_REBOOT:
5315 arg_action = ACTION_REBOOT;
5316 break;
5317
5318 case 'f':
5319 arg_force = 2;
5320 break;
5321
5322 case 'w':
5323 arg_dry = true;
5324 break;
5325
5326 case 'd':
5327 arg_no_wtmp = true;
5328 break;
5329
5330 case ARG_NO_WALL:
5331 arg_no_wall = true;
5332 break;
5333
5334 case 'i':
5335 case 'h':
5336 case 'n':
5337 /* Compatibility nops */
5338 break;
5339
5340 case '?':
5341 return -EINVAL;
5342
5343 default:
5344 assert_not_reached("Unhandled option");
5345 }
5346 }
5347
5348 if (arg_action == ACTION_REBOOT && argc == optind + 1) {
5349 r = write_string_file(REBOOT_PARAM_FILE, argv[optind]);
5350 if (r < 0) {
5351 log_error("Failed to write reboot param to "
5352 REBOOT_PARAM_FILE": %s", strerror(-r));
5353 return r;
5354 }
5355 } else if (optind < argc) {
5356 log_error("Too many arguments.");
5357 return -EINVAL;
5358 }
5359
5360 return 1;
5361 }
5362
5363 static int parse_time_spec(const char *t, usec_t *_u) {
5364 assert(t);
5365 assert(_u);
5366
5367 if (streq(t, "now"))
5368 *_u = 0;
5369 else if (!strchr(t, ':')) {
5370 uint64_t u;
5371
5372 if (safe_atou64(t, &u) < 0)
5373 return -EINVAL;
5374
5375 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
5376 } else {
5377 char *e = NULL;
5378 long hour, minute;
5379 struct tm tm = {};
5380 time_t s;
5381 usec_t n;
5382
5383 errno = 0;
5384 hour = strtol(t, &e, 10);
5385 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
5386 return -EINVAL;
5387
5388 minute = strtol(e+1, &e, 10);
5389 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
5390 return -EINVAL;
5391
5392 n = now(CLOCK_REALTIME);
5393 s = (time_t) (n / USEC_PER_SEC);
5394
5395 assert_se(localtime_r(&s, &tm));
5396
5397 tm.tm_hour = (int) hour;
5398 tm.tm_min = (int) minute;
5399 tm.tm_sec = 0;
5400
5401 assert_se(s = mktime(&tm));
5402
5403 *_u = (usec_t) s * USEC_PER_SEC;
5404
5405 while (*_u <= n)
5406 *_u += USEC_PER_DAY;
5407 }
5408
5409 return 0;
5410 }
5411
5412 static int shutdown_parse_argv(int argc, char *argv[]) {
5413
5414 enum {
5415 ARG_HELP = 0x100,
5416 ARG_NO_WALL
5417 };
5418
5419 static const struct option options[] = {
5420 { "help", no_argument, NULL, ARG_HELP },
5421 { "halt", no_argument, NULL, 'H' },
5422 { "poweroff", no_argument, NULL, 'P' },
5423 { "reboot", no_argument, NULL, 'r' },
5424 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
5425 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5426 {}
5427 };
5428
5429 int c, r;
5430
5431 assert(argc >= 0);
5432 assert(argv);
5433
5434 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
5435 switch (c) {
5436
5437 case ARG_HELP:
5438 return shutdown_help();
5439
5440 case 'H':
5441 arg_action = ACTION_HALT;
5442 break;
5443
5444 case 'P':
5445 arg_action = ACTION_POWEROFF;
5446 break;
5447
5448 case 'r':
5449 if (kexec_loaded())
5450 arg_action = ACTION_KEXEC;
5451 else
5452 arg_action = ACTION_REBOOT;
5453 break;
5454
5455 case 'K':
5456 arg_action = ACTION_KEXEC;
5457 break;
5458
5459 case 'h':
5460 if (arg_action != ACTION_HALT)
5461 arg_action = ACTION_POWEROFF;
5462 break;
5463
5464 case 'k':
5465 arg_dry = true;
5466 break;
5467
5468 case ARG_NO_WALL:
5469 arg_no_wall = true;
5470 break;
5471
5472 case 't':
5473 case 'a':
5474 /* Compatibility nops */
5475 break;
5476
5477 case 'c':
5478 arg_action = ACTION_CANCEL_SHUTDOWN;
5479 break;
5480
5481 case '?':
5482 return -EINVAL;
5483
5484 default:
5485 assert_not_reached("Unhandled option");
5486 }
5487 }
5488
5489 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
5490 r = parse_time_spec(argv[optind], &arg_when);
5491 if (r < 0) {
5492 log_error("Failed to parse time specification: %s", argv[optind]);
5493 return r;
5494 }
5495 } else
5496 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5497
5498 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
5499 /* No time argument for shutdown cancel */
5500 arg_wall = argv + optind;
5501 else if (argc > optind + 1)
5502 /* We skip the time argument */
5503 arg_wall = argv + optind + 1;
5504
5505 optind = argc;
5506
5507 return 1;
5508 }
5509
5510 static int telinit_parse_argv(int argc, char *argv[]) {
5511
5512 enum {
5513 ARG_HELP = 0x100,
5514 ARG_NO_WALL
5515 };
5516
5517 static const struct option options[] = {
5518 { "help", no_argument, NULL, ARG_HELP },
5519 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5520 {}
5521 };
5522
5523 static const struct {
5524 char from;
5525 enum action to;
5526 } table[] = {
5527 { '0', ACTION_POWEROFF },
5528 { '6', ACTION_REBOOT },
5529 { '1', ACTION_RESCUE },
5530 { '2', ACTION_RUNLEVEL2 },
5531 { '3', ACTION_RUNLEVEL3 },
5532 { '4', ACTION_RUNLEVEL4 },
5533 { '5', ACTION_RUNLEVEL5 },
5534 { 's', ACTION_RESCUE },
5535 { 'S', ACTION_RESCUE },
5536 { 'q', ACTION_RELOAD },
5537 { 'Q', ACTION_RELOAD },
5538 { 'u', ACTION_REEXEC },
5539 { 'U', ACTION_REEXEC }
5540 };
5541
5542 unsigned i;
5543 int c;
5544
5545 assert(argc >= 0);
5546 assert(argv);
5547
5548 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5549 switch (c) {
5550
5551 case ARG_HELP:
5552 return telinit_help();
5553
5554 case ARG_NO_WALL:
5555 arg_no_wall = true;
5556 break;
5557
5558 case '?':
5559 return -EINVAL;
5560
5561 default:
5562 assert_not_reached("Unhandled option");
5563 }
5564 }
5565
5566 if (optind >= argc) {
5567 telinit_help();
5568 return -EINVAL;
5569 }
5570
5571 if (optind + 1 < argc) {
5572 log_error("Too many arguments.");
5573 return -EINVAL;
5574 }
5575
5576 if (strlen(argv[optind]) != 1) {
5577 log_error("Expected single character argument.");
5578 return -EINVAL;
5579 }
5580
5581 for (i = 0; i < ELEMENTSOF(table); i++)
5582 if (table[i].from == argv[optind][0])
5583 break;
5584
5585 if (i >= ELEMENTSOF(table)) {
5586 log_error("Unknown command '%s'.", argv[optind]);
5587 return -EINVAL;
5588 }
5589
5590 arg_action = table[i].to;
5591
5592 optind ++;
5593
5594 return 1;
5595 }
5596
5597 static int runlevel_parse_argv(int argc, char *argv[]) {
5598
5599 enum {
5600 ARG_HELP = 0x100,
5601 };
5602
5603 static const struct option options[] = {
5604 { "help", no_argument, NULL, ARG_HELP },
5605 {}
5606 };
5607
5608 int c;
5609
5610 assert(argc >= 0);
5611 assert(argv);
5612
5613 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5614 switch (c) {
5615
5616 case ARG_HELP:
5617 return runlevel_help();
5618 return 0;
5619
5620 case '?':
5621 return -EINVAL;
5622
5623 default:
5624 assert_not_reached("Unhandled option");
5625 }
5626 }
5627
5628 if (optind < argc) {
5629 log_error("Too many arguments.");
5630 return -EINVAL;
5631 }
5632
5633 return 1;
5634 }
5635
5636 static int parse_argv(int argc, char *argv[]) {
5637 assert(argc >= 0);
5638 assert(argv);
5639
5640 if (program_invocation_short_name) {
5641
5642 if (strstr(program_invocation_short_name, "halt")) {
5643 arg_action = ACTION_HALT;
5644 return halt_parse_argv(argc, argv);
5645 } else if (strstr(program_invocation_short_name, "poweroff")) {
5646 arg_action = ACTION_POWEROFF;
5647 return halt_parse_argv(argc, argv);
5648 } else if (strstr(program_invocation_short_name, "reboot")) {
5649 if (kexec_loaded())
5650 arg_action = ACTION_KEXEC;
5651 else
5652 arg_action = ACTION_REBOOT;
5653 return halt_parse_argv(argc, argv);
5654 } else if (strstr(program_invocation_short_name, "shutdown")) {
5655 arg_action = ACTION_POWEROFF;
5656 return shutdown_parse_argv(argc, argv);
5657 } else if (strstr(program_invocation_short_name, "init")) {
5658
5659 if (sd_booted() > 0) {
5660 arg_action = _ACTION_INVALID;
5661 return telinit_parse_argv(argc, argv);
5662 } else {
5663 /* Hmm, so some other init system is
5664 * running, we need to forward this
5665 * request to it. For now we simply
5666 * guess that it is Upstart. */
5667
5668 execv(TELINIT, argv);
5669
5670 log_error("Couldn't find an alternative telinit implementation to spawn.");
5671 return -EIO;
5672 }
5673
5674 } else if (strstr(program_invocation_short_name, "runlevel")) {
5675 arg_action = ACTION_RUNLEVEL;
5676 return runlevel_parse_argv(argc, argv);
5677 }
5678 }
5679
5680 arg_action = ACTION_SYSTEMCTL;
5681 return systemctl_parse_argv(argc, argv);
5682 }
5683
5684 _pure_ static int action_to_runlevel(void) {
5685
5686 static const char table[_ACTION_MAX] = {
5687 [ACTION_HALT] = '0',
5688 [ACTION_POWEROFF] = '0',
5689 [ACTION_REBOOT] = '6',
5690 [ACTION_RUNLEVEL2] = '2',
5691 [ACTION_RUNLEVEL3] = '3',
5692 [ACTION_RUNLEVEL4] = '4',
5693 [ACTION_RUNLEVEL5] = '5',
5694 [ACTION_RESCUE] = '1'
5695 };
5696
5697 assert(arg_action < _ACTION_MAX);
5698
5699 return table[arg_action];
5700 }
5701
5702 static int talk_initctl(void) {
5703
5704 struct init_request request = {
5705 .magic = INIT_MAGIC,
5706 .sleeptime = 0,
5707 .cmd = INIT_CMD_RUNLVL
5708 };
5709
5710 _cleanup_close_ int fd = -1;
5711 char rl;
5712 int r;
5713
5714 rl = action_to_runlevel();
5715 if (!rl)
5716 return 0;
5717
5718 request.runlevel = rl;
5719
5720 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5721 if (fd < 0) {
5722 if (errno == ENOENT)
5723 return 0;
5724
5725 log_error("Failed to open "INIT_FIFO": %m");
5726 return -errno;
5727 }
5728
5729 errno = 0;
5730 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5731 if (r) {
5732 log_error("Failed to write to "INIT_FIFO": %m");
5733 return errno > 0 ? -errno : -EIO;
5734 }
5735
5736 return 1;
5737 }
5738
5739 static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
5740
5741 static const struct {
5742 const char* verb;
5743 const enum {
5744 MORE,
5745 LESS,
5746 EQUAL
5747 } argc_cmp;
5748 const int argc;
5749 int (* const dispatch)(sd_bus *bus, char **args);
5750 } verbs[] = {
5751 { "list-units", LESS, 1, list_units },
5752 { "list-unit-files", EQUAL, 1, list_unit_files },
5753 { "list-sockets", LESS, 1, list_sockets },
5754 { "list-timers", LESS, 1, list_timers },
5755 { "list-jobs", EQUAL, 1, list_jobs },
5756 { "clear-jobs", EQUAL, 1, daemon_reload },
5757 { "cancel", MORE, 2, cancel_job },
5758 { "start", MORE, 2, start_unit },
5759 { "stop", MORE, 2, start_unit },
5760 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5761 { "reload", MORE, 2, start_unit },
5762 { "restart", MORE, 2, start_unit },
5763 { "try-restart", MORE, 2, start_unit },
5764 { "reload-or-restart", MORE, 2, start_unit },
5765 { "reload-or-try-restart", MORE, 2, start_unit },
5766 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5767 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5768 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5769 { "isolate", EQUAL, 2, start_unit },
5770 { "kill", MORE, 2, kill_unit },
5771 { "is-active", MORE, 2, check_unit_active },
5772 { "check", MORE, 2, check_unit_active },
5773 { "is-failed", MORE, 2, check_unit_failed },
5774 { "show", MORE, 1, show },
5775 { "cat", MORE, 2, cat },
5776 { "status", MORE, 1, show },
5777 { "help", MORE, 2, show },
5778 { "snapshot", LESS, 2, snapshot },
5779 { "delete", MORE, 2, delete_snapshot },
5780 { "daemon-reload", EQUAL, 1, daemon_reload },
5781 { "daemon-reexec", EQUAL, 1, daemon_reload },
5782 { "show-environment", EQUAL, 1, show_environment },
5783 { "set-environment", MORE, 2, set_environment },
5784 { "unset-environment", MORE, 2, set_environment },
5785 { "halt", EQUAL, 1, start_special },
5786 { "poweroff", EQUAL, 1, start_special },
5787 { "reboot", EQUAL, 1, start_special },
5788 { "kexec", EQUAL, 1, start_special },
5789 { "suspend", EQUAL, 1, start_special },
5790 { "hibernate", EQUAL, 1, start_special },
5791 { "hybrid-sleep", EQUAL, 1, start_special },
5792 { "default", EQUAL, 1, start_special },
5793 { "rescue", EQUAL, 1, start_special },
5794 { "emergency", EQUAL, 1, start_special },
5795 { "exit", EQUAL, 1, start_special },
5796 { "reset-failed", MORE, 1, reset_failed },
5797 { "enable", MORE, 2, enable_unit },
5798 { "disable", MORE, 2, enable_unit },
5799 { "is-enabled", MORE, 2, unit_is_enabled },
5800 { "reenable", MORE, 2, enable_unit },
5801 { "preset", MORE, 2, enable_unit },
5802 { "mask", MORE, 2, enable_unit },
5803 { "unmask", MORE, 2, enable_unit },
5804 { "link", MORE, 2, enable_unit },
5805 { "switch-root", MORE, 2, switch_root },
5806 { "list-dependencies", LESS, 2, list_dependencies },
5807 { "set-default", EQUAL, 2, set_default },
5808 { "get-default", EQUAL, 1, get_default },
5809 { "set-property", MORE, 3, set_property },
5810 };
5811
5812 int left;
5813 unsigned i;
5814
5815 assert(argc >= 0);
5816 assert(argv);
5817
5818 left = argc - optind;
5819
5820 if (left <= 0)
5821 /* Special rule: no arguments means "list-units" */
5822 i = 0;
5823 else {
5824 if (streq(argv[optind], "help") && !argv[optind+1]) {
5825 log_error("This command expects one or more "
5826 "unit names. Did you mean --help?");
5827 return -EINVAL;
5828 }
5829
5830 for (i = 0; i < ELEMENTSOF(verbs); i++)
5831 if (streq(argv[optind], verbs[i].verb))
5832 break;
5833
5834 if (i >= ELEMENTSOF(verbs)) {
5835 log_error("Unknown operation '%s'.", argv[optind]);
5836 return -EINVAL;
5837 }
5838 }
5839
5840 switch (verbs[i].argc_cmp) {
5841
5842 case EQUAL:
5843 if (left != verbs[i].argc) {
5844 log_error("Invalid number of arguments.");
5845 return -EINVAL;
5846 }
5847
5848 break;
5849
5850 case MORE:
5851 if (left < verbs[i].argc) {
5852 log_error("Too few arguments.");
5853 return -EINVAL;
5854 }
5855
5856 break;
5857
5858 case LESS:
5859 if (left > verbs[i].argc) {
5860 log_error("Too many arguments.");
5861 return -EINVAL;
5862 }
5863
5864 break;
5865
5866 default:
5867 assert_not_reached("Unknown comparison operator.");
5868 }
5869
5870 /* Require a bus connection for all operations but
5871 * enable/disable */
5872 if (!streq(verbs[i].verb, "enable") &&
5873 !streq(verbs[i].verb, "disable") &&
5874 !streq(verbs[i].verb, "is-enabled") &&
5875 !streq(verbs[i].verb, "list-unit-files") &&
5876 !streq(verbs[i].verb, "reenable") &&
5877 !streq(verbs[i].verb, "preset") &&
5878 !streq(verbs[i].verb, "mask") &&
5879 !streq(verbs[i].verb, "unmask") &&
5880 !streq(verbs[i].verb, "link") &&
5881 !streq(verbs[i].verb, "set-default") &&
5882 !streq(verbs[i].verb, "get-default")) {
5883
5884 if (running_in_chroot() > 0) {
5885 log_info("Running in chroot, ignoring request.");
5886 return 0;
5887 }
5888
5889 if (((!streq(verbs[i].verb, "reboot") &&
5890 !streq(verbs[i].verb, "halt") &&
5891 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5892 log_error("Failed to get D-Bus connection: %s", strerror (-bus_error));
5893 return -EIO;
5894 }
5895
5896 } else {
5897
5898 if (!bus && !avoid_bus()) {
5899 log_error("Failed to get D-Bus connection: %s", strerror (-bus_error));
5900 return -EIO;
5901 }
5902 }
5903
5904 return verbs[i].dispatch(bus, argv + optind);
5905 }
5906
5907 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5908
5909 struct sd_shutdown_command c = {
5910 .usec = t,
5911 .mode = mode,
5912 .dry_run = dry_run,
5913 .warn_wall = warn,
5914 };
5915
5916 union sockaddr_union sockaddr = {
5917 .un.sun_family = AF_UNIX,
5918 .un.sun_path = "/run/systemd/shutdownd",
5919 };
5920
5921 struct iovec iovec[2] = {{
5922 .iov_base = (char*) &c,
5923 .iov_len = offsetof(struct sd_shutdown_command, wall_message),
5924 }};
5925
5926 struct msghdr msghdr = {
5927 .msg_name = &sockaddr,
5928 .msg_namelen = offsetof(struct sockaddr_un, sun_path)
5929 + sizeof("/run/systemd/shutdownd") - 1,
5930 .msg_iov = iovec,
5931 .msg_iovlen = 1,
5932 };
5933
5934 _cleanup_close_ int fd;
5935
5936 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5937 if (fd < 0)
5938 return -errno;
5939
5940 if (!isempty(message)) {
5941 iovec[1].iov_base = (char*) message;
5942 iovec[1].iov_len = strlen(message);
5943 msghdr.msg_iovlen++;
5944 }
5945
5946 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
5947 return -errno;
5948
5949 return 0;
5950 }
5951
5952 static int reload_with_fallback(sd_bus *bus) {
5953
5954 if (bus) {
5955 /* First, try systemd via D-Bus. */
5956 if (daemon_reload(bus, NULL) >= 0)
5957 return 0;
5958 }
5959
5960 /* Nothing else worked, so let's try signals */
5961 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5962
5963 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5964 log_error("kill() failed: %m");
5965 return -errno;
5966 }
5967
5968 return 0;
5969 }
5970
5971 static int start_with_fallback(sd_bus *bus) {
5972
5973 if (bus) {
5974 /* First, try systemd via D-Bus. */
5975 if (start_unit(bus, NULL) >= 0)
5976 goto done;
5977 }
5978
5979 /* Nothing else worked, so let's try
5980 * /dev/initctl */
5981 if (talk_initctl() > 0)
5982 goto done;
5983
5984 log_error("Failed to talk to init daemon.");
5985 return -EIO;
5986
5987 done:
5988 warn_wall(arg_action);
5989 return 0;
5990 }
5991
5992 static int halt_now(enum action a) {
5993
5994 /* Make sure C-A-D is handled by the kernel from this
5995 * point on... */
5996 reboot(RB_ENABLE_CAD);
5997
5998 switch (a) {
5999
6000 case ACTION_HALT:
6001 log_info("Halting.");
6002 reboot(RB_HALT_SYSTEM);
6003 return -errno;
6004
6005 case ACTION_POWEROFF:
6006 log_info("Powering off.");
6007 reboot(RB_POWER_OFF);
6008 return -errno;
6009
6010 case ACTION_REBOOT: {
6011 _cleanup_free_ char *param = NULL;
6012
6013 if (read_one_line_file(REBOOT_PARAM_FILE, &param) >= 0) {
6014 log_info("Rebooting with argument '%s'.", param);
6015 syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
6016 LINUX_REBOOT_CMD_RESTART2, param);
6017 }
6018
6019 log_info("Rebooting.");
6020 reboot(RB_AUTOBOOT);
6021 return -errno;
6022 }
6023
6024 default:
6025 assert_not_reached("Unknown action.");
6026 }
6027 }
6028
6029 static int halt_main(sd_bus *bus) {
6030 int r;
6031
6032 r = check_inhibitors(bus, arg_action);
6033 if (r < 0)
6034 return r;
6035
6036 if (geteuid() != 0) {
6037 /* Try logind if we are a normal user and no special
6038 * mode applies. Maybe PolicyKit allows us to shutdown
6039 * the machine. */
6040
6041 if (arg_when <= 0 &&
6042 !arg_dry &&
6043 arg_force <= 0 &&
6044 (arg_action == ACTION_POWEROFF ||
6045 arg_action == ACTION_REBOOT)) {
6046 r = reboot_with_logind(bus, arg_action);
6047 if (r >= 0)
6048 return r;
6049 }
6050
6051 log_error("Must be root.");
6052 return -EPERM;
6053 }
6054
6055 if (arg_when > 0) {
6056 _cleanup_free_ char *m;
6057
6058 m = strv_join(arg_wall, " ");
6059 if (!m)
6060 return log_oom();
6061
6062 r = send_shutdownd(arg_when,
6063 arg_action == ACTION_HALT ? 'H' :
6064 arg_action == ACTION_POWEROFF ? 'P' :
6065 arg_action == ACTION_KEXEC ? 'K' :
6066 'r',
6067 arg_dry,
6068 !arg_no_wall,
6069 m);
6070
6071 if (r < 0)
6072 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
6073 else {
6074 char date[FORMAT_TIMESTAMP_MAX];
6075
6076 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
6077 format_timestamp(date, sizeof(date), arg_when));
6078 return 0;
6079 }
6080 }
6081
6082 if (!arg_dry && !arg_force)
6083 return start_with_fallback(bus);
6084
6085 if (!arg_no_wtmp) {
6086 if (sd_booted() > 0)
6087 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
6088 else {
6089 r = utmp_put_shutdown();
6090 if (r < 0)
6091 log_warning("Failed to write utmp record: %s", strerror(-r));
6092 }
6093 }
6094
6095 if (arg_dry)
6096 return 0;
6097
6098 r = halt_now(arg_action);
6099 log_error("Failed to reboot: %s", strerror(-r));
6100
6101 return r;
6102 }
6103
6104 static int runlevel_main(void) {
6105 int r, runlevel, previous;
6106
6107 r = utmp_get_runlevel(&runlevel, &previous);
6108 if (r < 0) {
6109 puts("unknown");
6110 return r;
6111 }
6112
6113 printf("%c %c\n",
6114 previous <= 0 ? 'N' : previous,
6115 runlevel <= 0 ? 'N' : runlevel);
6116
6117 return 0;
6118 }
6119
6120 int main(int argc, char*argv[]) {
6121 _cleanup_bus_unref_ sd_bus *bus = NULL;
6122 int r;
6123
6124 setlocale(LC_ALL, "");
6125 log_parse_environment();
6126 log_open();
6127
6128 /* Explicitly not on_tty() to avoid setting cached value.
6129 * This becomes relevant for piping output which might be
6130 * ellipsized. */
6131 original_stdout_is_tty = isatty(STDOUT_FILENO);
6132
6133 r = parse_argv(argc, argv);
6134 if (r <= 0)
6135 goto finish;
6136
6137 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
6138 * let's shortcut this */
6139 if (arg_action == ACTION_RUNLEVEL) {
6140 r = runlevel_main();
6141 goto finish;
6142 }
6143
6144 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
6145 log_info("Running in chroot, ignoring request.");
6146 r = 0;
6147 goto finish;
6148 }
6149
6150 if (!avoid_bus())
6151 r = bus_open_transport_systemd(arg_transport, arg_host, arg_scope != UNIT_FILE_SYSTEM, &bus);
6152
6153 /* systemctl_main() will print an error message for the bus
6154 * connection, but only if it needs to */
6155
6156 switch (arg_action) {
6157
6158 case ACTION_SYSTEMCTL:
6159 r = systemctl_main(bus, argc, argv, r);
6160 break;
6161
6162 case ACTION_HALT:
6163 case ACTION_POWEROFF:
6164 case ACTION_REBOOT:
6165 case ACTION_KEXEC:
6166 r = halt_main(bus);
6167 break;
6168
6169 case ACTION_RUNLEVEL2:
6170 case ACTION_RUNLEVEL3:
6171 case ACTION_RUNLEVEL4:
6172 case ACTION_RUNLEVEL5:
6173 case ACTION_RESCUE:
6174 case ACTION_EMERGENCY:
6175 case ACTION_DEFAULT:
6176 r = start_with_fallback(bus);
6177 break;
6178
6179 case ACTION_RELOAD:
6180 case ACTION_REEXEC:
6181 r = reload_with_fallback(bus);
6182 break;
6183
6184 case ACTION_CANCEL_SHUTDOWN: {
6185 _cleanup_free_ char *m = NULL;
6186
6187 if (arg_wall) {
6188 m = strv_join(arg_wall, " ");
6189 if (!m) {
6190 r = log_oom();
6191 goto finish;
6192 }
6193 }
6194
6195 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
6196 if (r < 0)
6197 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
6198 break;
6199 }
6200
6201 case ACTION_RUNLEVEL:
6202 case _ACTION_INVALID:
6203 default:
6204 assert_not_reached("Unknown action");
6205 }
6206
6207 finish:
6208 pager_close();
6209 ask_password_agent_close();
6210 polkit_agent_close();
6211
6212 strv_free(arg_types);
6213 strv_free(arg_states);
6214 strv_free(arg_properties);
6215
6216 return r < 0 ? EXIT_FAILURE : r;
6217 }
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