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[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 #include <fnmatch.h>
41
42 #include "sd-daemon.h"
43 #include "sd-shutdown.h"
44 #include "sd-login.h"
45 #include "sd-bus.h"
46 #include "log.h"
47 #include "util.h"
48 #include "macro.h"
49 #include "set.h"
50 #include "utmp-wtmp.h"
51 #include "special.h"
52 #include "initreq.h"
53 #include "path-util.h"
54 #include "strv.h"
55 #include "cgroup-show.h"
56 #include "cgroup-util.h"
57 #include "list.h"
58 #include "path-lookup.h"
59 #include "conf-parser.h"
60 #include "exit-status.h"
61 #include "bus-errors.h"
62 #include "build.h"
63 #include "unit-name.h"
64 #include "pager.h"
65 #include "spawn-ask-password-agent.h"
66 #include "spawn-polkit-agent.h"
67 #include "install.h"
68 #include "logs-show.h"
69 #include "socket-util.h"
70 #include "fileio.h"
71 #include "bus-util.h"
72 #include "bus-message.h"
73 #include "bus-error.h"
74 #include "bus-errors.h"
75
76 static char **arg_types = NULL;
77 static char **arg_states = NULL;
78 static char **arg_properties = NULL;
79 static bool arg_all = false;
80 static bool original_stdout_is_tty;
81 static enum dependency {
82 DEPENDENCY_FORWARD,
83 DEPENDENCY_REVERSE,
84 DEPENDENCY_AFTER,
85 DEPENDENCY_BEFORE,
86 _DEPENDENCY_MAX
87 } arg_dependency = DEPENDENCY_FORWARD;
88 static const char *arg_job_mode = "replace";
89 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
90 static bool arg_no_block = false;
91 static bool arg_no_legend = false;
92 static bool arg_no_pager = false;
93 static bool arg_no_wtmp = false;
94 static bool arg_no_wall = false;
95 static bool arg_no_reload = false;
96 static bool arg_show_types = false;
97 static bool arg_ignore_inhibitors = false;
98 static bool arg_dry = false;
99 static bool arg_quiet = false;
100 static bool arg_full = false;
101 static int arg_force = 0;
102 static bool arg_ask_password = true;
103 static bool arg_runtime = false;
104 static char **arg_wall = NULL;
105 static const char *arg_kill_who = NULL;
106 static int arg_signal = SIGTERM;
107 static const char *arg_root = NULL;
108 static usec_t arg_when = 0;
109 static enum action {
110 _ACTION_INVALID,
111 ACTION_SYSTEMCTL,
112 ACTION_HALT,
113 ACTION_POWEROFF,
114 ACTION_REBOOT,
115 ACTION_KEXEC,
116 ACTION_EXIT,
117 ACTION_SUSPEND,
118 ACTION_HIBERNATE,
119 ACTION_HYBRID_SLEEP,
120 ACTION_RUNLEVEL2,
121 ACTION_RUNLEVEL3,
122 ACTION_RUNLEVEL4,
123 ACTION_RUNLEVEL5,
124 ACTION_RESCUE,
125 ACTION_EMERGENCY,
126 ACTION_DEFAULT,
127 ACTION_RELOAD,
128 ACTION_REEXEC,
129 ACTION_RUNLEVEL,
130 ACTION_CANCEL_SHUTDOWN,
131 _ACTION_MAX
132 } arg_action = ACTION_SYSTEMCTL;
133 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
134 static char *arg_host = NULL;
135 static unsigned arg_lines = 10;
136 static OutputMode arg_output = OUTPUT_SHORT;
137 static bool arg_plain = false;
138 static const struct {
139 const char *verb;
140 const char *method;
141 } unit_actions[] = {
142 { "start", "StartUnit" },
143 { "stop", "StopUnit" },
144 { "condstop", "StopUnit" },
145 { "reload", "ReloadUnit" },
146 { "restart", "RestartUnit" },
147 { "try-restart", "TryRestartUnit" },
148 { "condrestart", "TryRestartUnit" },
149 { "reload-or-restart", "ReloadOrRestartUnit" },
150 { "reload-or-try-restart", "ReloadOrTryRestartUnit" },
151 { "condreload", "ReloadOrTryRestartUnit" },
152 { "force-reload", "ReloadOrTryRestartUnit" }
153 };
154
155 static int daemon_reload(sd_bus *bus, char **args);
156 static int halt_now(enum action a);
157
158 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet);
159
160 static char** strv_skip_first(char **strv) {
161 if (strv_length(strv) > 0)
162 return strv + 1;
163 return NULL;
164 }
165
166 static void pager_open_if_enabled(void) {
167
168 if (arg_no_pager)
169 return;
170
171 pager_open(false);
172 }
173
174 static void ask_password_agent_open_if_enabled(void) {
175
176 /* Open the password agent as a child process if necessary */
177
178 if (!arg_ask_password)
179 return;
180
181 if (arg_scope != UNIT_FILE_SYSTEM)
182 return;
183
184 if (arg_transport != BUS_TRANSPORT_LOCAL)
185 return;
186
187 ask_password_agent_open();
188 }
189
190 #ifdef HAVE_LOGIND
191 static void polkit_agent_open_if_enabled(void) {
192
193 /* Open the polkit agent as a child process if necessary */
194
195 if (!arg_ask_password)
196 return;
197
198 if (arg_scope != UNIT_FILE_SYSTEM)
199 return;
200
201 if (arg_transport != BUS_TRANSPORT_LOCAL)
202 return;
203
204 polkit_agent_open();
205 }
206 #endif
207
208 static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
209 assert(error);
210
211 if (!sd_bus_error_is_set(error))
212 return r;
213
214 if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) ||
215 sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
216 sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
217 sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
218 return EXIT_NOPERMISSION;
219
220 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
221 return EXIT_NOTINSTALLED;
222
223 if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
224 sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED))
225 return EXIT_NOTIMPLEMENTED;
226
227 if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
228 return EXIT_NOTCONFIGURED;
229
230 if (r != 0)
231 return r;
232
233 return EXIT_FAILURE;
234 }
235
236 static void warn_wall(enum action a) {
237 static const char *table[_ACTION_MAX] = {
238 [ACTION_HALT] = "The system is going down for system halt NOW!",
239 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
240 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
241 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
242 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
243 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
244 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
245 };
246
247 if (arg_no_wall)
248 return;
249
250 if (arg_wall) {
251 _cleanup_free_ char *p;
252
253 p = strv_join(arg_wall, " ");
254 if (!p) {
255 log_oom();
256 return;
257 }
258
259 if (*p) {
260 utmp_wall(p, NULL);
261 return;
262 }
263 }
264
265 if (!table[a])
266 return;
267
268 utmp_wall(table[a], NULL);
269 }
270
271 static bool avoid_bus(void) {
272
273 if (running_in_chroot() > 0)
274 return true;
275
276 if (sd_booted() <= 0)
277 return true;
278
279 if (!isempty(arg_root))
280 return true;
281
282 if (arg_scope == UNIT_FILE_GLOBAL)
283 return true;
284
285 return false;
286 }
287
288 static int compare_unit_info(const void *a, const void *b) {
289 const UnitInfo *u = a, *v = b;
290 const char *d1, *d2;
291
292 d1 = strrchr(u->id, '.');
293 d2 = strrchr(v->id, '.');
294
295 if (d1 && d2) {
296 int r;
297
298 r = strcasecmp(d1, d2);
299 if (r != 0)
300 return r;
301 }
302
303 return strcasecmp(u->id, v->id);
304 }
305
306 static bool output_show_unit(const UnitInfo *u, char **patterns) {
307 const char *dot;
308
309 if (!strv_isempty(arg_states))
310 return
311 strv_contains(arg_states, u->load_state) ||
312 strv_contains(arg_states, u->sub_state) ||
313 strv_contains(arg_states, u->active_state);
314
315 if (!strv_isempty(patterns)) {
316 char **pattern;
317
318 STRV_FOREACH(pattern, patterns)
319 if (fnmatch(*pattern, u->id, FNM_NOESCAPE) == 0)
320 return true;
321 return false;
322 }
323
324 return (!arg_types || ((dot = strrchr(u->id, '.')) &&
325 strv_find(arg_types, dot+1))) &&
326 (arg_all || !(streq(u->active_state, "inactive")
327 || u->following[0]) || u->job_id > 0);
328 }
329
330 static void output_units_list(const UnitInfo *unit_infos, unsigned c) {
331 unsigned id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len;
332 const UnitInfo *u;
333 unsigned n_shown = 0;
334 int job_count = 0;
335
336 max_id_len = sizeof("UNIT")-1;
337 load_len = sizeof("LOAD")-1;
338 active_len = sizeof("ACTIVE")-1;
339 sub_len = sizeof("SUB")-1;
340 job_len = sizeof("JOB")-1;
341 desc_len = 0;
342
343 for (u = unit_infos; u < unit_infos + c; u++) {
344 max_id_len = MAX(max_id_len, strlen(u->id));
345 load_len = MAX(load_len, strlen(u->load_state));
346 active_len = MAX(active_len, strlen(u->active_state));
347 sub_len = MAX(sub_len, strlen(u->sub_state));
348
349 if (u->job_id != 0) {
350 job_len = MAX(job_len, strlen(u->job_type));
351 job_count++;
352 }
353 }
354
355 if (!arg_full && original_stdout_is_tty) {
356 unsigned basic_len;
357
358 id_len = MIN(max_id_len, 25u);
359 basic_len = 5 + id_len + 5 + active_len + sub_len;
360
361 if (job_count)
362 basic_len += job_len + 1;
363
364 if (basic_len < (unsigned) columns()) {
365 unsigned extra_len, incr;
366 extra_len = columns() - basic_len;
367
368 /* Either UNIT already got 25, or is fully satisfied.
369 * Grant up to 25 to DESC now. */
370 incr = MIN(extra_len, 25u);
371 desc_len += incr;
372 extra_len -= incr;
373
374 /* split the remaining space between UNIT and DESC,
375 * but do not give UNIT more than it needs. */
376 if (extra_len > 0) {
377 incr = MIN(extra_len / 2, max_id_len - id_len);
378 id_len += incr;
379 desc_len += extra_len - incr;
380 }
381 }
382 } else
383 id_len = max_id_len;
384
385 for (u = unit_infos; u < unit_infos + c; u++) {
386 _cleanup_free_ char *e = NULL;
387 const char *on_loaded, *off_loaded, *on = "";
388 const char *on_active, *off_active, *off = "";
389
390 if (!n_shown && !arg_no_legend) {
391 printf("%-*s %-*s %-*s %-*s ",
392 id_len, "UNIT",
393 load_len, "LOAD",
394 active_len, "ACTIVE",
395 sub_len, "SUB");
396
397 if (job_count)
398 printf("%-*s ", job_len, "JOB");
399
400 if (!arg_full && arg_no_pager)
401 printf("%.*s\n", desc_len, "DESCRIPTION");
402 else
403 printf("%s\n", "DESCRIPTION");
404 }
405
406 n_shown++;
407
408 if (streq(u->load_state, "error") ||
409 streq(u->load_state, "not-found")) {
410 on_loaded = on = ansi_highlight_red();
411 off_loaded = off = ansi_highlight_off();
412 } else
413 on_loaded = off_loaded = "";
414
415 if (streq(u->active_state, "failed")) {
416 on_active = on = ansi_highlight_red();
417 off_active = off = ansi_highlight_off();
418 } else
419 on_active = off_active = "";
420
421 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
422
423 printf("%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
424 on, id_len, e ? e : u->id, off,
425 on_loaded, load_len, u->load_state, off_loaded,
426 on_active, active_len, u->active_state,
427 sub_len, u->sub_state, off_active,
428 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
429
430 if (desc_len > 0)
431 printf("%.*s\n", desc_len, u->description);
432 else
433 printf("%s\n", u->description);
434 }
435
436 if (!arg_no_legend) {
437 const char *on, *off;
438
439 if (n_shown) {
440 puts("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
441 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
442 "SUB = The low-level unit activation state, values depend on unit type.");
443 puts(job_count ? "JOB = Pending job for the unit.\n" : "");
444 on = ansi_highlight();
445 off = ansi_highlight_off();
446 } else {
447 on = ansi_highlight_red();
448 off = ansi_highlight_off();
449 }
450
451 if (arg_all)
452 printf("%s%u loaded units listed.%s\n"
453 "To show all installed unit files use 'systemctl list-unit-files'.\n",
454 on, n_shown, off);
455 else
456 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
457 "To show all installed unit files use 'systemctl list-unit-files'.\n",
458 on, n_shown, off);
459 }
460 }
461
462 static int get_unit_list(
463 sd_bus *bus,
464 sd_bus_message **_reply,
465 UnitInfo **_unit_infos,
466 char **patterns) {
467
468 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
469 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
470 _cleanup_free_ UnitInfo *unit_infos = NULL;
471 size_t size = 0;
472 int r, c = 0;
473 UnitInfo u;
474
475 assert(bus);
476 assert(_reply);
477 assert(_unit_infos);
478
479 r = sd_bus_call_method(
480 bus,
481 "org.freedesktop.systemd1",
482 "/org/freedesktop/systemd1",
483 "org.freedesktop.systemd1.Manager",
484 "ListUnits",
485 &error,
486 &reply,
487 NULL);
488 if (r < 0) {
489 log_error("Failed to list units: %s", bus_error_message(&error, r));
490 return r;
491 }
492
493 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
494 if (r < 0)
495 return bus_log_parse_error(r);
496
497 while ((r = bus_parse_unit_info(reply, &u)) > 0) {
498 if (!output_show_unit(&u, patterns))
499 continue;
500
501 if (!GREEDY_REALLOC(unit_infos, size, c+1))
502 return log_oom();
503
504 unit_infos[c++] = u;
505 }
506 if (r < 0)
507 return bus_log_parse_error(r);
508
509 r = sd_bus_message_exit_container(reply);
510 if (r < 0)
511 return bus_log_parse_error(r);
512
513 *_reply = reply;
514 reply = NULL;
515
516 *_unit_infos = unit_infos;
517 unit_infos = NULL;
518
519 return c;
520 }
521
522 static int list_units(sd_bus *bus, char **args) {
523 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
524 _cleanup_free_ UnitInfo *unit_infos = NULL;
525 int r;
526
527 pager_open_if_enabled();
528
529 r = get_unit_list(bus, &reply, &unit_infos, strv_skip_first(args));
530 if (r < 0)
531 return r;
532
533 qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
534 output_units_list(unit_infos, r);
535
536 return 0;
537 }
538
539 static int get_triggered_units(
540 sd_bus *bus,
541 const char* path,
542 char*** ret) {
543
544 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
545 int r;
546
547 r = sd_bus_get_property_strv(
548 bus,
549 "org.freedesktop.systemd1",
550 path,
551 "org.freedesktop.systemd1.Unit",
552 "Triggers",
553 &error,
554 ret);
555
556 if (r < 0)
557 log_error("Failed to determine triggers: %s", bus_error_message(&error, r));
558
559 return 0;
560 }
561
562 static int get_listening(
563 sd_bus *bus,
564 const char* unit_path,
565 char*** listening) {
566
567 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
568 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
569 const char *type, *path;
570 int r, n = 0;
571
572 r = sd_bus_get_property(
573 bus,
574 "org.freedesktop.systemd1",
575 unit_path,
576 "org.freedesktop.systemd1.Socket",
577 "Listen",
578 &error,
579 &reply,
580 "a(ss)");
581 if (r < 0) {
582 log_error("Failed to get list of listening sockets: %s", bus_error_message(&error, r));
583 return r;
584 }
585
586 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
587 if (r < 0)
588 return bus_log_parse_error(r);
589
590 while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) {
591
592 r = strv_extend(listening, type);
593 if (r < 0)
594 return log_oom();
595
596 r = strv_extend(listening, path);
597 if (r < 0)
598 return log_oom();
599
600 n++;
601 }
602 if (r < 0)
603 return bus_log_parse_error(r);
604
605 r = sd_bus_message_exit_container(reply);
606 if (r < 0)
607 return bus_log_parse_error(r);
608
609 return n;
610 }
611
612 struct socket_info {
613 const char* id;
614
615 char* type;
616 char* path;
617
618 /* Note: triggered is a list here, although it almost certainly
619 * will always be one unit. Nevertheless, dbus API allows for multiple
620 * values, so let's follow that.*/
621 char** triggered;
622
623 /* The strv above is shared. free is set only in the first one. */
624 bool own_triggered;
625 };
626
627 static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) {
628 int o;
629
630 assert(a);
631 assert(b);
632
633 o = strcmp(a->path, b->path);
634 if (o == 0)
635 o = strcmp(a->type, b->type);
636
637 return o;
638 }
639
640 static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
641 struct socket_info *s;
642 unsigned pathlen = sizeof("LISTEN") - 1,
643 typelen = (sizeof("TYPE") - 1) * arg_show_types,
644 socklen = sizeof("UNIT") - 1,
645 servlen = sizeof("ACTIVATES") - 1;
646 const char *on, *off;
647
648 for (s = socket_infos; s < socket_infos + cs; s++) {
649 unsigned tmp = 0;
650 char **a;
651
652 socklen = MAX(socklen, strlen(s->id));
653 if (arg_show_types)
654 typelen = MAX(typelen, strlen(s->type));
655 pathlen = MAX(pathlen, strlen(s->path));
656
657 STRV_FOREACH(a, s->triggered)
658 tmp += strlen(*a) + 2*(a != s->triggered);
659 servlen = MAX(servlen, tmp);
660 }
661
662 if (cs) {
663 if (!arg_no_legend)
664 printf("%-*s %-*.*s%-*s %s\n",
665 pathlen, "LISTEN",
666 typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
667 socklen, "UNIT",
668 "ACTIVATES");
669
670 for (s = socket_infos; s < socket_infos + cs; s++) {
671 char **a;
672
673 if (arg_show_types)
674 printf("%-*s %-*s %-*s",
675 pathlen, s->path, typelen, s->type, socklen, s->id);
676 else
677 printf("%-*s %-*s",
678 pathlen, s->path, socklen, s->id);
679 STRV_FOREACH(a, s->triggered)
680 printf("%s %s",
681 a == s->triggered ? "" : ",", *a);
682 printf("\n");
683 }
684
685 on = ansi_highlight();
686 off = ansi_highlight_off();
687 if (!arg_no_legend)
688 printf("\n");
689 } else {
690 on = ansi_highlight_red();
691 off = ansi_highlight_off();
692 }
693
694 if (!arg_no_legend) {
695 printf("%s%u sockets listed.%s\n", on, cs, off);
696 if (!arg_all)
697 printf("Pass --all to see loaded but inactive sockets, too.\n");
698 }
699
700 return 0;
701 }
702
703 static int list_sockets(sd_bus *bus, char **args) {
704 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
705 _cleanup_free_ UnitInfo *unit_infos = NULL;
706 _cleanup_free_ struct socket_info *socket_infos = NULL;
707 const UnitInfo *u;
708 struct socket_info *s;
709 unsigned cs = 0;
710 size_t size = 0;
711 int r = 0, n;
712
713 pager_open_if_enabled();
714
715 n = get_unit_list(bus, &reply, &unit_infos, strv_skip_first(args));
716 if (n < 0)
717 return n;
718
719 for (u = unit_infos; u < unit_infos + n; u++) {
720 _cleanup_strv_free_ char **listening = NULL, **triggered = NULL;
721 int i, c;
722
723 if (!endswith(u->id, ".socket"))
724 continue;
725
726 r = get_triggered_units(bus, u->unit_path, &triggered);
727 if (r < 0)
728 goto cleanup;
729
730 c = get_listening(bus, u->unit_path, &listening);
731 if (c < 0) {
732 r = c;
733 goto cleanup;
734 }
735
736 if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
737 r = log_oom();
738 goto cleanup;
739 }
740
741 for (i = 0; i < c; i++)
742 socket_infos[cs + i] = (struct socket_info) {
743 .id = u->id,
744 .type = listening[i*2],
745 .path = listening[i*2 + 1],
746 .triggered = triggered,
747 .own_triggered = i==0,
748 };
749
750 /* from this point on we will cleanup those socket_infos */
751 cs += c;
752 free(listening);
753 listening = triggered = NULL; /* avoid cleanup */
754 }
755
756 qsort_safe(socket_infos, cs, sizeof(struct socket_info),
757 (__compar_fn_t) socket_info_compare);
758
759 output_sockets_list(socket_infos, cs);
760
761 cleanup:
762 assert(cs == 0 || socket_infos);
763 for (s = socket_infos; s < socket_infos + cs; s++) {
764 free(s->type);
765 free(s->path);
766 if (s->own_triggered)
767 strv_free(s->triggered);
768 }
769
770 return r;
771 }
772
773 static int get_next_elapse(
774 sd_bus *bus,
775 const char *path,
776 dual_timestamp *next) {
777
778 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
779 dual_timestamp t;
780 int r;
781
782 assert(bus);
783 assert(path);
784 assert(next);
785
786 r = sd_bus_get_property_trivial(
787 bus,
788 "org.freedesktop.systemd1",
789 path,
790 "org.freedesktop.systemd1.Timer",
791 "NextElapseUSecMonotonic",
792 &error,
793 't',
794 &t.monotonic);
795 if (r < 0) {
796 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
797 return r;
798 }
799
800 r = sd_bus_get_property_trivial(
801 bus,
802 "org.freedesktop.systemd1",
803 path,
804 "org.freedesktop.systemd1.Timer",
805 "NextElapseUSecRealtime",
806 &error,
807 't',
808 &t.realtime);
809 if (r < 0) {
810 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
811 return r;
812 }
813
814 *next = t;
815 return 0;
816 }
817
818 struct timer_info {
819 const char* id;
820 usec_t next_elapse;
821 char** triggered;
822 };
823
824 static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
825 assert(a);
826 assert(b);
827
828 if (a->next_elapse < b->next_elapse)
829 return -1;
830 if (a->next_elapse > b->next_elapse)
831 return 1;
832
833 return strcmp(a->id, b->id);
834 }
835
836 static int output_timers_list(struct timer_info *timer_infos, unsigned n) {
837 struct timer_info *t;
838 unsigned
839 nextlen = sizeof("NEXT") - 1,
840 leftlen = sizeof("LEFT") - 1,
841 unitlen = sizeof("UNIT") - 1,
842 activatelen = sizeof("ACTIVATES") - 1;
843
844 const char *on, *off;
845
846 assert(timer_infos || n == 0);
847
848 for (t = timer_infos; t < timer_infos + n; t++) {
849 unsigned ul = 0;
850 char **a;
851
852 if (t->next_elapse > 0) {
853 char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
854
855 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
856 nextlen = MAX(nextlen, strlen(tstamp) + 1);
857
858 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
859 leftlen = MAX(leftlen, strlen(trel));
860 }
861
862 unitlen = MAX(unitlen, strlen(t->id));
863
864 STRV_FOREACH(a, t->triggered)
865 ul += strlen(*a) + 2*(a != t->triggered);
866 activatelen = MAX(activatelen, ul);
867 }
868
869 if (n > 0) {
870 if (!arg_no_legend)
871 printf("%-*s %-*s %-*s %s\n",
872 nextlen, "NEXT",
873 leftlen, "LEFT",
874 unitlen, "UNIT",
875 "ACTIVATES");
876
877 for (t = timer_infos; t < timer_infos + n; t++) {
878 char tstamp[FORMAT_TIMESTAMP_MAX] = "n/a", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
879 char **a;
880
881 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
882 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
883
884 printf("%-*s %-*s %-*s",
885 nextlen, tstamp, leftlen, trel, unitlen, t->id);
886
887 STRV_FOREACH(a, t->triggered)
888 printf("%s %s",
889 a == t->triggered ? "" : ",", *a);
890 printf("\n");
891 }
892
893 on = ansi_highlight();
894 off = ansi_highlight_off();
895 if (!arg_no_legend)
896 printf("\n");
897 } else {
898 on = ansi_highlight_red();
899 off = ansi_highlight_off();
900 }
901
902 if (!arg_no_legend) {
903 printf("%s%u timers listed.%s\n", on, n, off);
904 if (!arg_all)
905 printf("Pass --all to see loaded but inactive timers, too.\n");
906 }
907
908 return 0;
909 }
910
911 static int list_timers(sd_bus *bus, char **args) {
912
913 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
914 _cleanup_free_ struct timer_info *timer_infos = NULL;
915 _cleanup_free_ UnitInfo *unit_infos = NULL;
916 struct timer_info *t;
917 const UnitInfo *u;
918 size_t size = 0;
919 int n, c = 0;
920 dual_timestamp nw;
921 int r = 0;
922
923 pager_open_if_enabled();
924
925 n = get_unit_list(bus, &reply, &unit_infos, strv_skip_first(args));
926 if (n < 0)
927 return n;
928
929 dual_timestamp_get(&nw);
930
931 for (u = unit_infos; u < unit_infos + n; u++) {
932 _cleanup_strv_free_ char **triggered = NULL;
933 dual_timestamp next;
934 usec_t m;
935
936 if (!endswith(u->id, ".timer"))
937 continue;
938
939 r = get_triggered_units(bus, u->unit_path, &triggered);
940 if (r < 0)
941 goto cleanup;
942
943 r = get_next_elapse(bus, u->unit_path, &next);
944 if (r < 0)
945 goto cleanup;
946
947 if (next.monotonic != (usec_t) -1 && next.monotonic > 0) {
948 usec_t converted;
949
950 if (next.monotonic > nw.monotonic)
951 converted = nw.realtime + (next.monotonic - nw.monotonic);
952 else
953 converted = nw.realtime - (nw.monotonic - next.monotonic);
954
955 if (next.realtime != (usec_t) -1 && next.realtime > 0)
956 m = MIN(converted, next.realtime);
957 else
958 m = converted;
959 } else
960 m = next.realtime;
961
962 if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
963 r = log_oom();
964 goto cleanup;
965 }
966
967 timer_infos[c++] = (struct timer_info) {
968 .id = u->id,
969 .next_elapse = m,
970 .triggered = triggered,
971 };
972
973 triggered = NULL; /* avoid cleanup */
974 }
975
976 qsort_safe(timer_infos, c, sizeof(struct timer_info),
977 (__compar_fn_t) timer_info_compare);
978
979 output_timers_list(timer_infos, c);
980
981 cleanup:
982 for (t = timer_infos; t < timer_infos + c; t++)
983 strv_free(t->triggered);
984
985 return r;
986 }
987
988 static int compare_unit_file_list(const void *a, const void *b) {
989 const char *d1, *d2;
990 const UnitFileList *u = a, *v = b;
991
992 d1 = strrchr(u->path, '.');
993 d2 = strrchr(v->path, '.');
994
995 if (d1 && d2) {
996 int r;
997
998 r = strcasecmp(d1, d2);
999 if (r != 0)
1000 return r;
1001 }
1002
1003 return strcasecmp(basename(u->path), basename(v->path));
1004 }
1005
1006 static bool output_show_unit_file(const UnitFileList *u, char **patterns) {
1007 const char *dot;
1008
1009 if (!strv_isempty(patterns)) {
1010 char **pattern;
1011
1012 STRV_FOREACH(pattern, patterns)
1013 if (fnmatch(*pattern, basename(u->path), FNM_NOESCAPE) == 0)
1014 return true;
1015 return false;
1016 }
1017
1018 return !arg_types || ((dot = strrchr(u->path, '.')) && strv_find(arg_types, dot+1));
1019 }
1020
1021 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
1022 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
1023 const UnitFileList *u;
1024
1025 max_id_len = sizeof("UNIT FILE")-1;
1026 state_cols = sizeof("STATE")-1;
1027
1028 for (u = units; u < units + c; u++) {
1029 max_id_len = MAX(max_id_len, strlen(basename(u->path)));
1030 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
1031 }
1032
1033 if (!arg_full) {
1034 unsigned basic_cols;
1035
1036 id_cols = MIN(max_id_len, 25u);
1037 basic_cols = 1 + id_cols + state_cols;
1038 if (basic_cols < (unsigned) columns())
1039 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
1040 } else
1041 id_cols = max_id_len;
1042
1043 if (!arg_no_legend)
1044 printf("%-*s %-*s\n",
1045 id_cols, "UNIT FILE",
1046 state_cols, "STATE");
1047
1048 for (u = units; u < units + c; u++) {
1049 _cleanup_free_ char *e = NULL;
1050 const char *on, *off;
1051 const char *id;
1052
1053 n_shown++;
1054
1055 if (u->state == UNIT_FILE_MASKED ||
1056 u->state == UNIT_FILE_MASKED_RUNTIME ||
1057 u->state == UNIT_FILE_DISABLED ||
1058 u->state == UNIT_FILE_INVALID) {
1059 on = ansi_highlight_red();
1060 off = ansi_highlight_off();
1061 } else if (u->state == UNIT_FILE_ENABLED) {
1062 on = ansi_highlight_green();
1063 off = ansi_highlight_off();
1064 } else
1065 on = off = "";
1066
1067 id = basename(u->path);
1068
1069 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
1070
1071 printf("%-*s %s%-*s%s\n",
1072 id_cols, e ? e : id,
1073 on, state_cols, unit_file_state_to_string(u->state), off);
1074 }
1075
1076 if (!arg_no_legend)
1077 printf("\n%u unit files listed.\n", n_shown);
1078 }
1079
1080 static int list_unit_files(sd_bus *bus, char **args) {
1081 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1082 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1083 _cleanup_free_ UnitFileList *units = NULL;
1084 UnitFileList *unit;
1085 size_t size = 0;
1086 unsigned c = 0;
1087 const char *state;
1088 char *path;
1089 int r;
1090
1091 pager_open_if_enabled();
1092
1093 if (avoid_bus()) {
1094 Hashmap *h;
1095 UnitFileList *u;
1096 Iterator i;
1097 unsigned n_units;
1098
1099 h = hashmap_new(string_hash_func, string_compare_func);
1100 if (!h)
1101 return log_oom();
1102
1103 r = unit_file_get_list(arg_scope, arg_root, h);
1104 if (r < 0) {
1105 unit_file_list_free(h);
1106 log_error("Failed to get unit file list: %s", strerror(-r));
1107 return r;
1108 }
1109
1110 n_units = hashmap_size(h);
1111 units = new(UnitFileList, n_units);
1112 if (!units) {
1113 unit_file_list_free(h);
1114 return log_oom();
1115 }
1116
1117 HASHMAP_FOREACH(u, h, i) {
1118 if (!output_show_unit_file(u, strv_skip_first(args)))
1119 continue;
1120
1121 units[c++] = *u;
1122 free(u);
1123 }
1124
1125 assert(c <= n_units);
1126 hashmap_free(h);
1127 } else {
1128 r = sd_bus_call_method(
1129 bus,
1130 "org.freedesktop.systemd1",
1131 "/org/freedesktop/systemd1",
1132 "org.freedesktop.systemd1.Manager",
1133 "ListUnitFiles",
1134 &error,
1135 &reply,
1136 NULL);
1137 if (r < 0) {
1138 log_error("Failed to list unit files: %s", bus_error_message(&error, r));
1139 return r;
1140 }
1141
1142 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
1143 if (r < 0)
1144 return bus_log_parse_error(r);
1145
1146 while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
1147
1148 if (!GREEDY_REALLOC(units, size, c + 1))
1149 return log_oom();
1150
1151 units[c] = (struct UnitFileList) {
1152 path,
1153 unit_file_state_from_string(state)
1154 };
1155
1156 if (output_show_unit_file(&units[c], strv_skip_first(args)))
1157 c ++;
1158
1159 }
1160 if (r < 0)
1161 return bus_log_parse_error(r);
1162
1163 r = sd_bus_message_exit_container(reply);
1164 if (r < 0)
1165 return bus_log_parse_error(r);
1166 }
1167
1168 if (c > 0) {
1169 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
1170 output_unit_file_list(units, c);
1171 }
1172
1173 if (avoid_bus())
1174 for (unit = units; unit < units + c; unit++)
1175 free(unit->path);
1176
1177 return 0;
1178 }
1179
1180 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
1181 _cleanup_free_ char *n = NULL;
1182 size_t max_len = MAX(columns(),20u);
1183 size_t len = 0;
1184 int i;
1185
1186 if (!arg_plain) {
1187
1188 for (i = level - 1; i >= 0; i--) {
1189 len += 2;
1190 if (len > max_len - 3 && !arg_full) {
1191 printf("%s...\n",max_len % 2 ? "" : " ");
1192 return 0;
1193 }
1194 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
1195 }
1196 len += 2;
1197
1198 if (len > max_len - 3 && !arg_full) {
1199 printf("%s...\n",max_len % 2 ? "" : " ");
1200 return 0;
1201 }
1202
1203 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
1204 }
1205
1206 if (arg_full){
1207 printf("%s\n", name);
1208 return 0;
1209 }
1210
1211 n = ellipsize(name, max_len-len, 100);
1212 if (!n)
1213 return log_oom();
1214
1215 printf("%s\n", n);
1216 return 0;
1217 }
1218
1219 static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
1220
1221 static const char *dependencies[_DEPENDENCY_MAX] = {
1222 [DEPENDENCY_FORWARD] = "Requires\0"
1223 "RequiresOverridable\0"
1224 "Requisite\0"
1225 "RequisiteOverridable\0"
1226 "Wants\0",
1227 [DEPENDENCY_REVERSE] = "RequiredBy\0"
1228 "RequiredByOverridable\0"
1229 "WantedBy\0"
1230 "PartOf\0",
1231 [DEPENDENCY_AFTER] = "After\0",
1232 [DEPENDENCY_BEFORE] = "Before\0",
1233 };
1234
1235 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1236 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1237 _cleanup_strv_free_ char **ret = NULL;
1238 _cleanup_free_ char *path = NULL;
1239 int r;
1240
1241 assert(bus);
1242 assert(name);
1243 assert(deps);
1244 assert_cc(ELEMENTSOF(dependencies) == _DEPENDENCY_MAX);
1245
1246 path = unit_dbus_path_from_name(name);
1247 if (!path)
1248 return log_oom();
1249
1250 r = sd_bus_call_method(
1251 bus,
1252 "org.freedesktop.systemd1",
1253 path,
1254 "org.freedesktop.DBus.Properties",
1255 "GetAll",
1256 &error,
1257 &reply,
1258 "s", "org.freedesktop.systemd1.Unit");
1259 if (r < 0) {
1260 log_error("Failed to get properties of %s: %s", name, bus_error_message(&error, r));
1261 return r;
1262 }
1263
1264 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
1265 if (r < 0)
1266 return bus_log_parse_error(r);
1267
1268 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
1269 const char *prop;
1270
1271 r = sd_bus_message_read(reply, "s", &prop);
1272 if (r < 0)
1273 return bus_log_parse_error(r);
1274
1275 if (!nulstr_contains(dependencies[arg_dependency], prop)) {
1276 r = sd_bus_message_skip(reply, "v");
1277 if (r < 0)
1278 return bus_log_parse_error(r);
1279 } else {
1280
1281 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as");
1282 if (r < 0)
1283 return bus_log_parse_error(r);
1284
1285 r = bus_message_read_strv_extend(reply, &ret);
1286 if (r < 0)
1287 return bus_log_parse_error(r);
1288
1289 r = sd_bus_message_exit_container(reply);
1290 if (r < 0)
1291 return bus_log_parse_error(r);
1292 }
1293
1294 r = sd_bus_message_exit_container(reply);
1295 if (r < 0)
1296 return bus_log_parse_error(r);
1297
1298 }
1299 if (r < 0)
1300 return bus_log_parse_error(r);
1301
1302 r = sd_bus_message_exit_container(reply);
1303 if (r < 0)
1304 return bus_log_parse_error(r);
1305
1306 *deps = ret;
1307 ret = NULL;
1308
1309 return 0;
1310 }
1311
1312 static int list_dependencies_compare(const void *_a, const void *_b) {
1313 const char **a = (const char**) _a, **b = (const char**) _b;
1314
1315 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1316 return 1;
1317 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1318 return -1;
1319
1320 return strcasecmp(*a, *b);
1321 }
1322
1323 static int list_dependencies_one(
1324 sd_bus *bus,
1325 const char *name,
1326 int level,
1327 char ***units,
1328 unsigned int branches) {
1329
1330 _cleanup_strv_free_ char **deps = NULL;
1331 char **c;
1332 int r = 0;
1333
1334 assert(bus);
1335 assert(name);
1336 assert(units);
1337
1338 r = strv_extend(units, name);
1339 if (r < 0)
1340 return log_oom();
1341
1342 r = list_dependencies_get_dependencies(bus, name, &deps);
1343 if (r < 0)
1344 return r;
1345
1346 qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1347
1348 STRV_FOREACH(c, deps) {
1349 int state;
1350
1351 if (strv_contains(*units, *c)) {
1352 if (!arg_plain) {
1353 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1354 if (r < 0)
1355 return r;
1356 }
1357 continue;
1358 }
1359
1360 state = check_one_unit(bus, *c, "activating\0active\0reloading\0", true);
1361 if (state > 0)
1362 printf("%s%s%s", ansi_highlight_green(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1363 else
1364 printf("%s%s%s", ansi_highlight_red(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1365
1366 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1367 if (r < 0)
1368 return r;
1369
1370 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1371 r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (c[1] == NULL ? 0 : 1));
1372 if (r < 0)
1373 return r;
1374 }
1375 }
1376
1377 if (!arg_plain)
1378 strv_remove(*units, name);
1379
1380 return 0;
1381 }
1382
1383 static int list_dependencies(sd_bus *bus, char **args) {
1384 _cleanup_strv_free_ char **units = NULL;
1385 _cleanup_free_ char *unit = NULL;
1386 const char *u;
1387
1388 assert(bus);
1389
1390 if (args[1]) {
1391 unit = unit_name_mangle(args[1], MANGLE_NOGLOB);
1392 if (!unit)
1393 return log_oom();
1394 u = unit;
1395 } else
1396 u = SPECIAL_DEFAULT_TARGET;
1397
1398 pager_open_if_enabled();
1399
1400 puts(u);
1401
1402 return list_dependencies_one(bus, u, 0, &units, 0);
1403 }
1404
1405 static int get_default(sd_bus *bus, char **args) {
1406 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1407 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1408 _cleanup_free_ char *_path = NULL;
1409 const char *path;
1410 int r;
1411
1412 if (!bus || avoid_bus()) {
1413 r = unit_file_get_default(arg_scope, arg_root, &_path);
1414 if (r < 0) {
1415 log_error("Failed to get default target: %s", strerror(-r));
1416 return r;
1417 }
1418 path = _path;
1419
1420 } else {
1421 r = sd_bus_call_method(
1422 bus,
1423 "org.freedesktop.systemd1",
1424 "/org/freedesktop/systemd1",
1425 "org.freedesktop.systemd1.Manager",
1426 "GetDefaultTarget",
1427 &error,
1428 &reply,
1429 NULL);
1430 if (r < 0) {
1431 log_error("Failed to get default target: %s", bus_error_message(&error, -r));
1432 return r;
1433 }
1434
1435 r = sd_bus_message_read(reply, "s", &path);
1436 if (r < 0)
1437 return bus_log_parse_error(r);
1438 }
1439
1440 if (path)
1441 printf("%s\n", path);
1442
1443 return 0;
1444 }
1445
1446 static void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_changes) {
1447 unsigned i;
1448
1449 assert(changes || n_changes == 0);
1450
1451 for (i = 0; i < n_changes; i++) {
1452 if (changes[i].type == UNIT_FILE_SYMLINK)
1453 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
1454 else
1455 log_info("rm '%s'", changes[i].path);
1456 }
1457 }
1458
1459 static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) {
1460 const char *type, *path, *source;
1461 int r;
1462
1463 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
1464 if (r < 0)
1465 return bus_log_parse_error(r);
1466
1467 while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
1468 if (!arg_quiet) {
1469 if (streq(type, "symlink"))
1470 log_info("ln -s '%s' '%s'", source, path);
1471 else
1472 log_info("rm '%s'", path);
1473 }
1474 }
1475 if (r < 0)
1476 return bus_log_parse_error(r);
1477
1478 r = sd_bus_message_exit_container(m);
1479 if (r < 0)
1480 return bus_log_parse_error(r);
1481
1482 return 0;
1483 }
1484
1485 static int set_default(sd_bus *bus, char **args) {
1486 _cleanup_free_ char *unit = NULL;
1487 UnitFileChange *changes = NULL;
1488 unsigned n_changes = 0;
1489 int r;
1490
1491 unit = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".target");
1492 if (!unit)
1493 return log_oom();
1494
1495 if (!bus || avoid_bus()) {
1496 r = unit_file_set_default(arg_scope, arg_root, unit, arg_force, &changes, &n_changes);
1497 if (r < 0) {
1498 log_error("Failed to set default target: %s", strerror(-r));
1499 return r;
1500 }
1501
1502 if (!arg_quiet)
1503 dump_unit_file_changes(changes, n_changes);
1504
1505 r = 0;
1506 } else {
1507 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1508 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1509
1510 r = sd_bus_call_method(
1511 bus,
1512 "org.freedesktop.systemd1",
1513 "/org/freedesktop/systemd1",
1514 "org.freedesktop.systemd1.Manager",
1515 "SetDefaultTarget",
1516 &error,
1517 &reply,
1518 "sb", unit, arg_force);
1519 if (r < 0) {
1520 log_error("Failed to set default target: %s", bus_error_message(&error, -r));
1521 return r;
1522 }
1523
1524 r = deserialize_and_dump_unit_file_changes(reply);
1525 if (r < 0)
1526 return r;
1527
1528 /* Try to reload if enabeld */
1529 if (!arg_no_reload)
1530 r = daemon_reload(bus, args);
1531 else
1532 r = 0;
1533 }
1534
1535 unit_file_changes_free(changes, n_changes);
1536
1537 return r;
1538 }
1539
1540 struct job_info {
1541 uint32_t id;
1542 const char *name, *type, *state;
1543 };
1544
1545 static void output_jobs_list(const struct job_info* jobs, unsigned n, bool skipped) {
1546 unsigned id_len, unit_len, type_len, state_len;
1547 const struct job_info *j;
1548 const char *on, *off;
1549 bool shorten = false;
1550
1551 assert(n == 0 || jobs);
1552
1553 if (n == 0) {
1554 on = ansi_highlight_green();
1555 off = ansi_highlight_off();
1556
1557 printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off);
1558 return;
1559 }
1560
1561 pager_open_if_enabled();
1562
1563 id_len = sizeof("JOB")-1;
1564 unit_len = sizeof("UNIT")-1;
1565 type_len = sizeof("TYPE")-1;
1566 state_len = sizeof("STATE")-1;
1567
1568 for (j = jobs; j < jobs + n; j++) {
1569 uint32_t id = j->id;
1570 assert(j->name && j->type && j->state);
1571
1572 id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
1573 unit_len = MAX(unit_len, strlen(j->name));
1574 type_len = MAX(type_len, strlen(j->type));
1575 state_len = MAX(state_len, strlen(j->state));
1576 }
1577
1578 if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
1579 unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
1580 shorten = true;
1581 }
1582
1583 if (!arg_no_legend)
1584 printf("%*s %-*s %-*s %-*s\n",
1585 id_len, "JOB",
1586 unit_len, "UNIT",
1587 type_len, "TYPE",
1588 state_len, "STATE");
1589
1590 for (j = jobs; j < jobs + n; j++) {
1591 _cleanup_free_ char *e = NULL;
1592
1593 if (streq(j->state, "running")) {
1594 on = ansi_highlight();
1595 off = ansi_highlight_off();
1596 } else
1597 on = off = "";
1598
1599 e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
1600 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
1601 id_len, j->id,
1602 on, unit_len, e ? e : j->name, off,
1603 type_len, j->type,
1604 on, state_len, j->state, off);
1605 }
1606
1607 if (!arg_no_legend) {
1608 on = ansi_highlight();
1609 off = ansi_highlight_off();
1610
1611 printf("\n%s%u jobs listed%s.\n", on, n, off);
1612 }
1613 }
1614
1615 static bool output_show_job(struct job_info *job, char **patterns) {
1616 if (!strv_isempty(patterns)) {
1617 char **pattern;
1618
1619 STRV_FOREACH(pattern, patterns)
1620 if (fnmatch(*pattern, job->name, FNM_NOESCAPE) == 0)
1621 return true;
1622 return false;
1623 }
1624
1625 return true;
1626 }
1627
1628 static int list_jobs(sd_bus *bus, char **args) {
1629 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1630 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1631 const char *name, *type, *state, *job_path, *unit_path;
1632 _cleanup_free_ struct job_info *jobs = NULL;
1633 size_t size = 0;
1634 unsigned c = 0;
1635 uint32_t id;
1636 int r;
1637 bool skipped = false;
1638
1639 r = sd_bus_call_method(
1640 bus,
1641 "org.freedesktop.systemd1",
1642 "/org/freedesktop/systemd1",
1643 "org.freedesktop.systemd1.Manager",
1644 "ListJobs",
1645 &error,
1646 &reply,
1647 NULL);
1648 if (r < 0) {
1649 log_error("Failed to list jobs: %s", bus_error_message(&error, r));
1650 return r;
1651 }
1652
1653 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
1654 if (r < 0)
1655 return bus_log_parse_error(r);
1656
1657 while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, &job_path, &unit_path)) > 0) {
1658 struct job_info job = { id, name, type, state };
1659
1660 if (!output_show_job(&job, strv_skip_first(args))) {
1661 skipped = true;
1662 continue;
1663 }
1664
1665 if (!GREEDY_REALLOC(jobs, size, c + 1))
1666 return log_oom();
1667
1668 jobs[c++] = job;
1669 }
1670 if (r < 0)
1671 return bus_log_parse_error(r);
1672
1673 r = sd_bus_message_exit_container(reply);
1674 if (r < 0)
1675 return bus_log_parse_error(r);
1676
1677 output_jobs_list(jobs, c, skipped);
1678 return r;
1679 }
1680
1681 static int cancel_job(sd_bus *bus, char **args) {
1682 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1683 char **name;
1684
1685 assert(args);
1686
1687 if (strv_length(args) <= 1)
1688 return daemon_reload(bus, args);
1689
1690 STRV_FOREACH(name, args+1) {
1691 uint32_t id;
1692 int r;
1693
1694 r = safe_atou32(*name, &id);
1695 if (r < 0) {
1696 log_error("Failed to parse job id \"%s\": %s", *name, strerror(-r));
1697 return r;
1698 }
1699
1700 r = sd_bus_call_method(
1701 bus,
1702 "org.freedesktop.systemd1",
1703 "/org/freedesktop/systemd1",
1704 "org.freedesktop.systemd1.Manager",
1705 "CancelJob",
1706 &error,
1707 NULL,
1708 "u", id);
1709 if (r < 0) {
1710 log_error("Failed to cancel job %u: %s", (unsigned) id, bus_error_message(&error, r));
1711 return r;
1712 }
1713 }
1714
1715 return 0;
1716 }
1717
1718 static int need_daemon_reload(sd_bus *bus, const char *unit) {
1719 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1720 const char *path;
1721 int b, r;
1722
1723 /* We ignore all errors here, since this is used to show a
1724 * warning only */
1725
1726 /* We don't use unit_dbus_path_from_name() directly since we
1727 * don't want to load the unit if it isn't loaded. */
1728
1729 r = sd_bus_call_method(
1730 bus,
1731 "org.freedesktop.systemd1",
1732 "/org/freedesktop/systemd1",
1733 "org.freedesktop.systemd1.Manager",
1734 "GetUnit",
1735 NULL,
1736 &reply,
1737 "s", unit);
1738 if (r < 0)
1739 return r;
1740
1741 r = sd_bus_message_read(reply, "o", &path);
1742 if (r < 0)
1743 return r;
1744
1745 r = sd_bus_get_property_trivial(
1746 bus,
1747 "org.freedesktop.systemd1",
1748 path,
1749 "org.freedesktop.systemd1.Unit",
1750 "NeedDaemonReload",
1751 NULL,
1752 'b', &b);
1753 if (r < 0)
1754 return r;
1755
1756 return b;
1757 }
1758
1759 typedef struct WaitData {
1760 Set *set;
1761
1762 char *name;
1763 char *result;
1764 } WaitData;
1765
1766 static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data, sd_bus_error *error) {
1767 WaitData *d = data;
1768
1769 assert(bus);
1770 assert(m);
1771 assert(d);
1772
1773 log_debug("Got D-Bus request: %s.%s() on %s",
1774 sd_bus_message_get_interface(m),
1775 sd_bus_message_get_member(m),
1776 sd_bus_message_get_path(m));
1777
1778 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected")) {
1779 log_error("Warning! D-Bus connection terminated.");
1780 sd_bus_close(bus);
1781 } else if (sd_bus_message_is_signal(m, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1782 uint32_t id;
1783 const char *path, *result, *unit;
1784 char *ret;
1785 int r;
1786
1787 r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
1788 if (r >= 0) {
1789 ret = set_remove(d->set, (char*) path);
1790 if (!ret)
1791 return 0;
1792
1793 free(ret);
1794
1795 if (!isempty(result))
1796 d->result = strdup(result);
1797
1798 if (!isempty(unit))
1799 d->name = strdup(unit);
1800
1801 return 0;
1802 }
1803 #ifndef NOLEGACY
1804 r = sd_bus_message_read(m, "uos", &id, &path, &result);
1805 if (r >= 0) {
1806 ret = set_remove(d->set, (char*) path);
1807 if (!ret)
1808 return 0;
1809
1810 free(ret);
1811
1812 if (*result)
1813 d->result = strdup(result);
1814
1815 return 0;
1816 }
1817 #endif
1818
1819 bus_log_parse_error(r);
1820 }
1821
1822 return 0;
1823 }
1824
1825 static int enable_wait_for_jobs(sd_bus *bus) {
1826 int r;
1827
1828 assert(bus);
1829
1830 r = sd_bus_add_match(
1831 bus,
1832 "type='signal',"
1833 "sender='org.freedesktop.systemd1',"
1834 "interface='org.freedesktop.systemd1.Manager',"
1835 "member='JobRemoved',"
1836 "path='/org/freedesktop/systemd1'",
1837 NULL, NULL);
1838 if (r < 0) {
1839 log_error("Failed to add match");
1840 return -EIO;
1841 }
1842
1843 /* This is slightly dirty, since we don't undo the match registrations. */
1844 return 0;
1845 }
1846
1847 static int bus_process_wait(sd_bus *bus) {
1848 int r;
1849
1850 for (;;) {
1851 r = sd_bus_process(bus, NULL);
1852 if (r < 0)
1853 return r;
1854 if (r > 0)
1855 return 0;
1856 r = sd_bus_wait(bus, (uint64_t) -1);
1857 if (r < 0)
1858 return r;
1859 }
1860 }
1861
1862 static int check_wait_response(WaitData *d) {
1863 int r = 0;
1864
1865 assert(d->result);
1866
1867 if (!arg_quiet) {
1868 if (streq(d->result, "timeout"))
1869 log_error("Job for %s timed out.", strna(d->name));
1870 else if (streq(d->result, "canceled"))
1871 log_error("Job for %s canceled.", strna(d->name));
1872 else if (streq(d->result, "dependency"))
1873 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d->name));
1874 else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
1875 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d->name), strna(d->name));
1876 }
1877
1878 if (streq(d->result, "timeout"))
1879 r = -ETIME;
1880 else if (streq(d->result, "canceled"))
1881 r = -ECANCELED;
1882 else if (streq(d->result, "dependency"))
1883 r = -EIO;
1884 else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
1885 r = -EIO;
1886
1887 return r;
1888 }
1889
1890 static int wait_for_jobs(sd_bus *bus, Set *s) {
1891 WaitData d = { .set = s };
1892 int r = 0, q;
1893
1894 assert(bus);
1895 assert(s);
1896
1897 q = sd_bus_add_filter(bus, wait_filter, &d);
1898 if (q < 0)
1899 return log_oom();
1900
1901 while (!set_isempty(s)) {
1902 q = bus_process_wait(bus);
1903 if (q < 0) {
1904 log_error("Failed to wait for response: %s", strerror(-r));
1905 return q;
1906 }
1907
1908 if (d.result) {
1909 q = check_wait_response(&d);
1910 /* Return the first error as it is most likely to be
1911 * meaningful. */
1912 if (q < 0 && r == 0)
1913 r = q;
1914 log_debug("Got result %s/%s for job %s",
1915 strna(d.result), strerror(-q), strna(d.name));
1916 }
1917
1918 free(d.name);
1919 d.name = NULL;
1920
1921 free(d.result);
1922 d.result = NULL;
1923 }
1924
1925 q = sd_bus_remove_filter(bus, wait_filter, &d);
1926 if (q < 0 && r == 0)
1927 r = q;
1928
1929 return r;
1930 }
1931
1932 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) {
1933 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1934 _cleanup_free_ char *n = NULL, *state = NULL;
1935 const char *path;
1936 int r;
1937
1938 assert(name);
1939
1940 n = unit_name_mangle(name, MANGLE_NOGLOB);
1941 if (!n)
1942 return log_oom();
1943
1944 /* We don't use unit_dbus_path_from_name() directly since we
1945 * don't want to load the unit if it isn't loaded. */
1946
1947 r = sd_bus_call_method(
1948 bus,
1949 "org.freedesktop.systemd1",
1950 "/org/freedesktop/systemd1",
1951 "org.freedesktop.systemd1.Manager",
1952 "GetUnit",
1953 NULL,
1954 &reply,
1955 "s", n);
1956 if (r < 0) {
1957 if (!quiet)
1958 puts("unknown");
1959 return 0;
1960 }
1961
1962 r = sd_bus_message_read(reply, "o", &path);
1963 if (r < 0)
1964 return bus_log_parse_error(r);
1965
1966 r = sd_bus_get_property_string(
1967 bus,
1968 "org.freedesktop.systemd1",
1969 path,
1970 "org.freedesktop.systemd1.Unit",
1971 "ActiveState",
1972 NULL,
1973 &state);
1974 if (r < 0) {
1975 if (!quiet)
1976 puts("unknown");
1977 return 0;
1978 }
1979
1980 if (!quiet)
1981 puts(state);
1982
1983 return nulstr_contains(good_states, state);
1984 }
1985
1986 static int check_triggering_units(
1987 sd_bus *bus,
1988 const char *name) {
1989
1990 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1991 _cleanup_free_ char *path = NULL, *n = NULL, *state = NULL;
1992 _cleanup_strv_free_ char **triggered_by = NULL;
1993 bool print_warning_label = true;
1994 char **i;
1995 int r;
1996
1997 n = unit_name_mangle(name, MANGLE_NOGLOB);
1998 if (!n)
1999 return log_oom();
2000
2001 path = unit_dbus_path_from_name(n);
2002 if (!path)
2003 return log_oom();
2004
2005 r = sd_bus_get_property_string(
2006 bus,
2007 "org.freedesktop.systemd1",
2008 path,
2009 "org.freedesktop.systemd1.Unit",
2010 "LoadState",
2011 &error,
2012 &state);
2013 if (r < 0) {
2014 log_error("Failed to get load state of %s: %s", n, bus_error_message(&error, r));
2015 return r;
2016 }
2017
2018 if (streq(state, "masked"))
2019 return 0;
2020
2021 r = sd_bus_get_property_strv(
2022 bus,
2023 "org.freedesktop.systemd1",
2024 path,
2025 "org.freedesktop.systemd1.Unit",
2026 "TriggeredBy",
2027 &error,
2028 &triggered_by);
2029 if (r < 0) {
2030 log_error("Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
2031 return r;
2032 }
2033
2034 STRV_FOREACH(i, triggered_by) {
2035 r = check_one_unit(bus, *i, "active\0reloading\0", true);
2036 if (r < 0) {
2037 log_error("Failed to check unit: %s", strerror(-r));
2038 return r;
2039 }
2040
2041 if (r == 0)
2042 continue;
2043
2044 if (print_warning_label) {
2045 log_warning("Warning: Stopping %s, but it can still be activated by:", n);
2046 print_warning_label = false;
2047 }
2048
2049 log_warning(" %s", *i);
2050 }
2051
2052 return 0;
2053 }
2054
2055 static const char *verb_to_method(const char *verb) {
2056 uint i;
2057
2058 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2059 if (streq_ptr(unit_actions[i].verb, verb))
2060 return unit_actions[i].method;
2061
2062 return "StartUnit";
2063 }
2064
2065 static const char *method_to_verb(const char *method) {
2066 uint i;
2067
2068 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2069 if (streq_ptr(unit_actions[i].method, method))
2070 return unit_actions[i].verb;
2071
2072 return "n/a";
2073 }
2074
2075 static int start_unit_one(
2076 sd_bus *bus,
2077 const char *method,
2078 const char *name,
2079 const char *mode,
2080 sd_bus_error *error,
2081 Set *s) {
2082
2083 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2084 const char *path;
2085 int r;
2086
2087 assert(method);
2088 assert(name);
2089 assert(mode);
2090 assert(error);
2091
2092 log_debug("Calling manager for %s on %s, %s", method, name, mode);
2093 r = sd_bus_call_method(
2094 bus,
2095 "org.freedesktop.systemd1",
2096 "/org/freedesktop/systemd1",
2097 "org.freedesktop.systemd1.Manager",
2098 method,
2099 error,
2100 &reply,
2101 "ss", name, mode);
2102 if (r < 0) {
2103 const char *verb;
2104
2105 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
2106 /* There's always a fallback possible for
2107 * legacy actions. */
2108 return -EADDRNOTAVAIL;
2109
2110 verb = method_to_verb(method);
2111
2112 log_error("Failed to %s %s: %s", verb, name, bus_error_message(error, r));
2113 return r;
2114 }
2115
2116 r = sd_bus_message_read(reply, "o", &path);
2117 if (r < 0)
2118 return bus_log_parse_error(r);
2119
2120 if (need_daemon_reload(bus, name) > 0)
2121 log_warning("Warning: Unit file of %s changed on disk, 'systemctl%s daemon-reload' recommended.",
2122 name, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
2123
2124 if (s) {
2125 char *p;
2126
2127 p = strdup(path);
2128 if (!p)
2129 return log_oom();
2130
2131 log_debug("Adding %s to the set", p);
2132 r = set_consume(s, p);
2133 if (r < 0)
2134 return log_oom();
2135 }
2136
2137 return 0;
2138 }
2139
2140 static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) {
2141
2142 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2143 _cleanup_strv_free_ char **mangled = NULL, **globs = NULL;
2144 char **name;
2145 int r = 0, i;
2146
2147 STRV_FOREACH(name, names) {
2148 char *t;
2149
2150 if (suffix)
2151 t = unit_name_mangle_with_suffix(*name, MANGLE_GLOB, suffix);
2152 else
2153 t = unit_name_mangle(*name, MANGLE_GLOB);
2154 if (!t)
2155 return log_oom();
2156
2157 if (string_is_glob(t))
2158 r = strv_push(&globs, t);
2159 else
2160 r = strv_push(&mangled, t);
2161 if (r < 0) {
2162 free(t);
2163 return log_oom();
2164 }
2165 }
2166
2167 /* Query the manager only if any of the names are a glob, since
2168 * this is fairly expensive */
2169 if (!strv_isempty(globs)) {
2170 _cleanup_free_ UnitInfo *unit_infos = NULL;
2171
2172 r = get_unit_list(bus, &reply, &unit_infos, globs);
2173 if (r < 0)
2174 return r;
2175
2176 for (i = 0; i < r; i++)
2177 if (strv_extend(&mangled, unit_infos[i].id) < 0)
2178 return log_oom();
2179 }
2180
2181 *ret = mangled;
2182 mangled = NULL; /* do not free */
2183 return 0;
2184 }
2185
2186 static const struct {
2187 const char *target;
2188 const char *verb;
2189 const char *mode;
2190 } action_table[_ACTION_MAX] = {
2191 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
2192 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
2193 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
2194 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
2195 [ACTION_RUNLEVEL2] = { SPECIAL_RUNLEVEL2_TARGET, NULL, "isolate" },
2196 [ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
2197 [ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
2198 [ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_TARGET, NULL, "isolate" },
2199 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
2200 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
2201 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
2202 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
2203 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
2204 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
2205 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
2206 };
2207
2208 static enum action verb_to_action(const char *verb) {
2209 enum action i;
2210
2211 for (i = _ACTION_INVALID; i < _ACTION_MAX; i++)
2212 if (streq_ptr(action_table[i].verb, verb))
2213 return i;
2214
2215 return _ACTION_INVALID;
2216 }
2217
2218 static int start_unit(sd_bus *bus, char **args) {
2219 _cleanup_set_free_free_ Set *s = NULL;
2220 _cleanup_strv_free_ char **names = NULL;
2221 const char *method, *mode, *one_name;
2222 char **name;
2223 int r = 0;
2224
2225 assert(bus);
2226
2227 ask_password_agent_open_if_enabled();
2228
2229 if (arg_action == ACTION_SYSTEMCTL) {
2230 enum action action;
2231 method = verb_to_method(args[0]);
2232 action = verb_to_action(args[0]);
2233
2234 mode = streq(args[0], "isolate") ? "isolate" :
2235 action_table[action].mode ?: arg_job_mode;
2236
2237 one_name = action_table[action].target;
2238 } else {
2239 assert(arg_action < ELEMENTSOF(action_table));
2240 assert(action_table[arg_action].target);
2241
2242 method = "StartUnit";
2243
2244 mode = action_table[arg_action].mode;
2245 one_name = action_table[arg_action].target;
2246 }
2247
2248 if (one_name)
2249 names = strv_new(one_name, NULL);
2250 else {
2251 r = expand_names(bus, args + 1, NULL, &names);
2252 if (r < 0)
2253 log_error("Failed to expand names: %s", strerror(-r));
2254 }
2255
2256 if (!arg_no_block) {
2257 r = enable_wait_for_jobs(bus);
2258 if (r < 0) {
2259 log_error("Could not watch jobs: %s", strerror(-r));
2260 return r;
2261 }
2262
2263 s = set_new(string_hash_func, string_compare_func);
2264 if (!s)
2265 return log_oom();
2266 }
2267
2268 STRV_FOREACH(name, names) {
2269 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2270 int q;
2271
2272 q = start_unit_one(bus, method, *name, mode, &error, s);
2273 if (r >= 0 && q < 0)
2274 r = translate_bus_error_to_exit_status(q, &error);
2275 }
2276
2277 if (!arg_no_block) {
2278 int q;
2279
2280 q = wait_for_jobs(bus, s);
2281 if (q < 0)
2282 return q;
2283
2284 /* When stopping units, warn if they can still be triggered by
2285 * another active unit (socket, path, timer) */
2286 if (!arg_quiet && streq(method, "StopUnit"))
2287 STRV_FOREACH(name, names)
2288 check_triggering_units(bus, *name);
2289 }
2290
2291 return r;
2292 }
2293
2294 /* Ask systemd-logind, which might grant access to unprivileged users
2295 * through PolicyKit */
2296 static int reboot_with_logind(sd_bus *bus, enum action a) {
2297 #ifdef HAVE_LOGIND
2298 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2299 const char *method;
2300 int r;
2301
2302 if (!bus)
2303 return -EIO;
2304
2305 polkit_agent_open_if_enabled();
2306
2307 switch (a) {
2308
2309 case ACTION_REBOOT:
2310 method = "Reboot";
2311 break;
2312
2313 case ACTION_POWEROFF:
2314 method = "PowerOff";
2315 break;
2316
2317 case ACTION_SUSPEND:
2318 method = "Suspend";
2319 break;
2320
2321 case ACTION_HIBERNATE:
2322 method = "Hibernate";
2323 break;
2324
2325 case ACTION_HYBRID_SLEEP:
2326 method = "HybridSleep";
2327 break;
2328
2329 default:
2330 return -EINVAL;
2331 }
2332
2333 r = sd_bus_call_method(
2334 bus,
2335 "org.freedesktop.login1",
2336 "/org/freedesktop/login1",
2337 "org.freedesktop.login1.Manager",
2338 method,
2339 &error,
2340 NULL,
2341 "b", true);
2342 if (r < 0)
2343 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
2344
2345 return r;
2346 #else
2347 return -ENOSYS;
2348 #endif
2349 }
2350
2351 static int check_inhibitors(sd_bus *bus, enum action a) {
2352 #ifdef HAVE_LOGIND
2353 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2354 _cleanup_strv_free_ char **sessions = NULL;
2355 const char *what, *who, *why, *mode;
2356 uint32_t uid, pid;
2357 unsigned c = 0;
2358 char **s;
2359 int r;
2360
2361 if (!bus)
2362 return 0;
2363
2364 if (arg_ignore_inhibitors || arg_force > 0)
2365 return 0;
2366
2367 if (arg_when > 0)
2368 return 0;
2369
2370 if (geteuid() == 0)
2371 return 0;
2372
2373 if (!on_tty())
2374 return 0;
2375
2376 r = sd_bus_call_method(
2377 bus,
2378 "org.freedesktop.login1",
2379 "/org/freedesktop/login1",
2380 "org.freedesktop.login1.Manager",
2381 "ListInhibitors",
2382 NULL,
2383 &reply,
2384 NULL);
2385 if (r < 0)
2386 /* If logind is not around, then there are no inhibitors... */
2387 return 0;
2388
2389 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
2390 if (r < 0)
2391 return bus_log_parse_error(r);
2392
2393 while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
2394 _cleanup_free_ char *comm = NULL, *user = NULL;
2395 _cleanup_strv_free_ char **sv = NULL;
2396
2397 if (!streq(mode, "block"))
2398 continue;
2399
2400 sv = strv_split(what, ":");
2401 if (!sv)
2402 return log_oom();
2403
2404 if (!strv_contains(sv,
2405 a == ACTION_HALT ||
2406 a == ACTION_POWEROFF ||
2407 a == ACTION_REBOOT ||
2408 a == ACTION_KEXEC ? "shutdown" : "sleep"))
2409 continue;
2410
2411 get_process_comm(pid, &comm);
2412 user = uid_to_name(uid);
2413
2414 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
2415 who, (unsigned long) pid, strna(comm), strna(user), why);
2416
2417 c++;
2418 }
2419 if (r < 0)
2420 return bus_log_parse_error(r);
2421
2422 r = sd_bus_message_exit_container(reply);
2423 if (r < 0)
2424 return bus_log_parse_error(r);
2425
2426 /* Check for current sessions */
2427 sd_get_sessions(&sessions);
2428 STRV_FOREACH(s, sessions) {
2429 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
2430
2431 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
2432 continue;
2433
2434 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
2435 continue;
2436
2437 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
2438 continue;
2439
2440 sd_session_get_tty(*s, &tty);
2441 sd_session_get_seat(*s, &seat);
2442 sd_session_get_service(*s, &service);
2443 user = uid_to_name(uid);
2444
2445 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
2446 c++;
2447 }
2448
2449 if (c <= 0)
2450 return 0;
2451
2452 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
2453 action_table[a].verb);
2454
2455 return -EPERM;
2456 #else
2457 return 0;
2458 #endif
2459 }
2460
2461 static int start_special(sd_bus *bus, char **args) {
2462 enum action a;
2463 int r;
2464
2465 assert(args);
2466
2467 a = verb_to_action(args[0]);
2468
2469 r = check_inhibitors(bus, a);
2470 if (r < 0)
2471 return r;
2472
2473 if (arg_force >= 2 && geteuid() != 0) {
2474 log_error("Must be root.");
2475 return -EPERM;
2476 }
2477
2478 if (arg_force >= 2 &&
2479 (a == ACTION_HALT ||
2480 a == ACTION_POWEROFF ||
2481 a == ACTION_REBOOT))
2482 return halt_now(a);
2483
2484 if (arg_force >= 1 &&
2485 (a == ACTION_HALT ||
2486 a == ACTION_POWEROFF ||
2487 a == ACTION_REBOOT ||
2488 a == ACTION_KEXEC ||
2489 a == ACTION_EXIT))
2490 return daemon_reload(bus, args);
2491
2492 /* first try logind, to allow authentication with polkit */
2493 if (geteuid() != 0 &&
2494 (a == ACTION_POWEROFF ||
2495 a == ACTION_REBOOT ||
2496 a == ACTION_SUSPEND ||
2497 a == ACTION_HIBERNATE ||
2498 a == ACTION_HYBRID_SLEEP)) {
2499 r = reboot_with_logind(bus, a);
2500 if (r >= 0)
2501 return r;
2502 }
2503
2504 r = start_unit(bus, args);
2505 if (r == EXIT_SUCCESS)
2506 warn_wall(a);
2507
2508 return r;
2509 }
2510
2511 static int check_unit_generic(sd_bus *bus, int code, const char *good_states, char **args) {
2512 _cleanup_strv_free_ char **names = NULL;
2513 char **name;
2514 int r = code;
2515
2516 assert(bus);
2517 assert(args);
2518
2519 r = expand_names(bus, args, NULL, &names);
2520 if (r < 0)
2521 log_error("Failed to expand names: %s", strerror(-r));
2522
2523 STRV_FOREACH(name, names) {
2524 int state;
2525
2526 state = check_one_unit(bus, *name, good_states, arg_quiet);
2527 if (state < 0)
2528 return state;
2529 if (state > 0)
2530 r = 0;
2531 }
2532
2533 return r;
2534 }
2535
2536 static int check_unit_active(sd_bus *bus, char **args) {
2537 /* According to LSB: 3, "program is not running" */
2538 return check_unit_generic(bus, 3, "active\0reloading\0", args + 1);
2539 }
2540
2541 static int check_unit_failed(sd_bus *bus, char **args) {
2542 return check_unit_generic(bus, 1, "failed\0", args + 1);
2543 }
2544
2545 static int kill_unit(sd_bus *bus, char **args) {
2546 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2547 _cleanup_strv_free_ char **names = NULL;
2548 char **name;
2549 int r, q;
2550
2551 assert(bus);
2552 assert(args);
2553
2554 if (!arg_kill_who)
2555 arg_kill_who = "all";
2556
2557 r = expand_names(bus, args + 1, NULL, &names);
2558 if (r < 0)
2559 log_error("Failed to expand names: %s", strerror(-r));
2560
2561 STRV_FOREACH(name, names) {
2562 q = sd_bus_call_method(
2563 bus,
2564 "org.freedesktop.systemd1",
2565 "/org/freedesktop/systemd1",
2566 "org.freedesktop.systemd1.Manager",
2567 "KillUnit",
2568 &error,
2569 NULL,
2570 "ssi", *names, arg_kill_who, arg_signal);
2571 if (q < 0) {
2572 log_error("Failed to kill unit %s: %s",
2573 *names, bus_error_message(&error, r));
2574 if (r == 0)
2575 r = q;
2576 }
2577 }
2578
2579 return r;
2580 }
2581
2582 typedef struct ExecStatusInfo {
2583 char *name;
2584
2585 char *path;
2586 char **argv;
2587
2588 bool ignore;
2589
2590 usec_t start_timestamp;
2591 usec_t exit_timestamp;
2592 pid_t pid;
2593 int code;
2594 int status;
2595
2596 LIST_FIELDS(struct ExecStatusInfo, exec);
2597 } ExecStatusInfo;
2598
2599 static void exec_status_info_free(ExecStatusInfo *i) {
2600 assert(i);
2601
2602 free(i->name);
2603 free(i->path);
2604 strv_free(i->argv);
2605 free(i);
2606 }
2607
2608 static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
2609 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2610 const char *path;
2611 uint32_t pid;
2612 int32_t code, status;
2613 int ignore, r;
2614
2615 assert(m);
2616 assert(i);
2617
2618 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
2619 if (r < 0)
2620 return bus_log_parse_error(r);
2621 else if (r == 0)
2622 return 0;
2623
2624 r = sd_bus_message_read(m, "s", &path);
2625 if (r < 0)
2626 return bus_log_parse_error(r);
2627
2628 i->path = strdup(path);
2629 if (!i->path)
2630 return log_oom();
2631
2632 r = sd_bus_message_read_strv(m, &i->argv);
2633 if (r < 0)
2634 return bus_log_parse_error(r);
2635
2636 r = sd_bus_message_read(m,
2637 "bttttuii",
2638 &ignore,
2639 &start_timestamp, &start_timestamp_monotonic,
2640 &exit_timestamp, &exit_timestamp_monotonic,
2641 &pid,
2642 &code, &status);
2643 if (r < 0)
2644 return bus_log_parse_error(r);
2645
2646 i->ignore = ignore;
2647 i->start_timestamp = (usec_t) start_timestamp;
2648 i->exit_timestamp = (usec_t) exit_timestamp;
2649 i->pid = (pid_t) pid;
2650 i->code = code;
2651 i->status = status;
2652
2653 r = sd_bus_message_exit_container(m);
2654 if (r < 0)
2655 return bus_log_parse_error(r);
2656
2657 return 1;
2658 }
2659
2660 typedef struct UnitStatusInfo {
2661 const char *id;
2662 const char *load_state;
2663 const char *active_state;
2664 const char *sub_state;
2665 const char *unit_file_state;
2666
2667 const char *description;
2668 const char *following;
2669
2670 char **documentation;
2671
2672 const char *fragment_path;
2673 const char *source_path;
2674 const char *control_group;
2675
2676 char **dropin_paths;
2677
2678 const char *load_error;
2679 const char *result;
2680
2681 usec_t inactive_exit_timestamp;
2682 usec_t inactive_exit_timestamp_monotonic;
2683 usec_t active_enter_timestamp;
2684 usec_t active_exit_timestamp;
2685 usec_t inactive_enter_timestamp;
2686
2687 bool need_daemon_reload;
2688
2689 /* Service */
2690 pid_t main_pid;
2691 pid_t control_pid;
2692 const char *status_text;
2693 const char *pid_file;
2694 bool running:1;
2695
2696 usec_t start_timestamp;
2697 usec_t exit_timestamp;
2698
2699 int exit_code, exit_status;
2700
2701 usec_t condition_timestamp;
2702 bool condition_result;
2703 bool failed_condition_trigger;
2704 bool failed_condition_negate;
2705 const char *failed_condition;
2706 const char *failed_condition_param;
2707
2708 /* Socket */
2709 unsigned n_accepted;
2710 unsigned n_connections;
2711 bool accept;
2712
2713 /* Pairs of type, path */
2714 char **listen;
2715
2716 /* Device */
2717 const char *sysfs_path;
2718
2719 /* Mount, Automount */
2720 const char *where;
2721
2722 /* Swap */
2723 const char *what;
2724
2725 LIST_HEAD(ExecStatusInfo, exec);
2726 } UnitStatusInfo;
2727
2728 static void print_status_info(
2729 UnitStatusInfo *i,
2730 bool *ellipsized) {
2731
2732 ExecStatusInfo *p;
2733 const char *on, *off, *ss;
2734 usec_t timestamp;
2735 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2736 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2737 const char *path;
2738 int flags =
2739 arg_all * OUTPUT_SHOW_ALL |
2740 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2741 on_tty() * OUTPUT_COLOR |
2742 !arg_quiet * OUTPUT_WARN_CUTOFF |
2743 arg_full * OUTPUT_FULL_WIDTH;
2744 char **t, **t2;
2745
2746 assert(i);
2747
2748 /* This shows pretty information about a unit. See
2749 * print_property() for a low-level property printer */
2750
2751 printf("%s", strna(i->id));
2752
2753 if (i->description && !streq_ptr(i->id, i->description))
2754 printf(" - %s", i->description);
2755
2756 printf("\n");
2757
2758 if (i->following)
2759 printf(" Follow: unit currently follows state of %s\n", i->following);
2760
2761 if (streq_ptr(i->load_state, "error")) {
2762 on = ansi_highlight_red();
2763 off = ansi_highlight_off();
2764 } else
2765 on = off = "";
2766
2767 path = i->source_path ? i->source_path : i->fragment_path;
2768
2769 if (i->load_error)
2770 printf(" Loaded: %s%s%s (Reason: %s)\n",
2771 on, strna(i->load_state), off, i->load_error);
2772 else if (path && i->unit_file_state)
2773 printf(" Loaded: %s%s%s (%s; %s)\n",
2774 on, strna(i->load_state), off, path, i->unit_file_state);
2775 else if (path)
2776 printf(" Loaded: %s%s%s (%s)\n",
2777 on, strna(i->load_state), off, path);
2778 else
2779 printf(" Loaded: %s%s%s\n",
2780 on, strna(i->load_state), off);
2781
2782 if (!strv_isempty(i->dropin_paths)) {
2783 _cleanup_free_ char *dir = NULL;
2784 bool last = false;
2785 char ** dropin;
2786
2787 STRV_FOREACH(dropin, i->dropin_paths) {
2788 if (! dir || last) {
2789 printf(dir ? " " : " Drop-In: ");
2790
2791 free(dir);
2792 dir = NULL;
2793
2794 if (path_get_parent(*dropin, &dir) < 0) {
2795 log_oom();
2796 return;
2797 }
2798
2799 printf("%s\n %s", dir,
2800 draw_special_char(DRAW_TREE_RIGHT));
2801 }
2802
2803 last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
2804
2805 printf("%s%s", basename(*dropin), last ? "\n" : ", ");
2806 }
2807 }
2808
2809 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2810
2811 if (streq_ptr(i->active_state, "failed")) {
2812 on = ansi_highlight_red();
2813 off = ansi_highlight_off();
2814 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2815 on = ansi_highlight_green();
2816 off = ansi_highlight_off();
2817 } else
2818 on = off = "";
2819
2820 if (ss)
2821 printf(" Active: %s%s (%s)%s",
2822 on, strna(i->active_state), ss, off);
2823 else
2824 printf(" Active: %s%s%s",
2825 on, strna(i->active_state), off);
2826
2827 if (!isempty(i->result) && !streq(i->result, "success"))
2828 printf(" (Result: %s)", i->result);
2829
2830 timestamp = (streq_ptr(i->active_state, "active") ||
2831 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2832 (streq_ptr(i->active_state, "inactive") ||
2833 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2834 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2835 i->active_exit_timestamp;
2836
2837 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2838 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2839
2840 if (s1)
2841 printf(" since %s; %s\n", s2, s1);
2842 else if (s2)
2843 printf(" since %s\n", s2);
2844 else
2845 printf("\n");
2846
2847 if (!i->condition_result && i->condition_timestamp > 0) {
2848 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2849 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2850
2851 printf(" start condition failed at %s%s%s\n",
2852 s2, s1 ? "; " : "", s1 ? s1 : "");
2853 if (i->failed_condition_trigger)
2854 printf(" none of the trigger conditions were met\n");
2855 else if (i->failed_condition)
2856 printf(" %s=%s%s was not met\n",
2857 i->failed_condition,
2858 i->failed_condition_negate ? "!" : "",
2859 i->failed_condition_param);
2860 }
2861
2862 if (i->sysfs_path)
2863 printf(" Device: %s\n", i->sysfs_path);
2864 if (i->where)
2865 printf(" Where: %s\n", i->where);
2866 if (i->what)
2867 printf(" What: %s\n", i->what);
2868
2869 STRV_FOREACH(t, i->documentation)
2870 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
2871
2872 STRV_FOREACH_PAIR(t, t2, i->listen)
2873 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
2874
2875 if (i->accept)
2876 printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2877
2878 LIST_FOREACH(exec, p, i->exec) {
2879 _cleanup_free_ char *argv = NULL;
2880 bool good;
2881
2882 /* Only show exited processes here */
2883 if (p->code == 0)
2884 continue;
2885
2886 argv = strv_join(p->argv, " ");
2887 printf(" Process: %u %s=%s ", p->pid, p->name, strna(argv));
2888
2889 good = is_clean_exit_lsb(p->code, p->status, NULL);
2890 if (!good) {
2891 on = ansi_highlight_red();
2892 off = ansi_highlight_off();
2893 } else
2894 on = off = "";
2895
2896 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2897
2898 if (p->code == CLD_EXITED) {
2899 const char *c;
2900
2901 printf("status=%i", p->status);
2902
2903 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2904 if (c)
2905 printf("/%s", c);
2906
2907 } else
2908 printf("signal=%s", signal_to_string(p->status));
2909
2910 printf(")%s\n", off);
2911
2912 if (i->main_pid == p->pid &&
2913 i->start_timestamp == p->start_timestamp &&
2914 i->exit_timestamp == p->start_timestamp)
2915 /* Let's not show this twice */
2916 i->main_pid = 0;
2917
2918 if (p->pid == i->control_pid)
2919 i->control_pid = 0;
2920 }
2921
2922 if (i->main_pid > 0 || i->control_pid > 0) {
2923 if (i->main_pid > 0) {
2924 printf(" Main PID: %u", (unsigned) i->main_pid);
2925
2926 if (i->running) {
2927 _cleanup_free_ char *comm = NULL;
2928 get_process_comm(i->main_pid, &comm);
2929 if (comm)
2930 printf(" (%s)", comm);
2931 } else if (i->exit_code > 0) {
2932 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2933
2934 if (i->exit_code == CLD_EXITED) {
2935 const char *c;
2936
2937 printf("status=%i", i->exit_status);
2938
2939 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2940 if (c)
2941 printf("/%s", c);
2942
2943 } else
2944 printf("signal=%s", signal_to_string(i->exit_status));
2945 printf(")");
2946 }
2947
2948 if (i->control_pid > 0)
2949 printf(";");
2950 }
2951
2952 if (i->control_pid > 0) {
2953 _cleanup_free_ char *c = NULL;
2954
2955 printf(" %8s: %u", i->main_pid ? "" : " Control", (unsigned) i->control_pid);
2956
2957 get_process_comm(i->control_pid, &c);
2958 if (c)
2959 printf(" (%s)", c);
2960 }
2961
2962 printf("\n");
2963 }
2964
2965 if (i->status_text)
2966 printf(" Status: \"%s\"\n", i->status_text);
2967
2968 if (i->control_group &&
2969 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, i->control_group, false) == 0)) {
2970 unsigned c;
2971
2972 printf(" CGroup: %s\n", i->control_group);
2973
2974 if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_CONTAINER) {
2975 unsigned k = 0;
2976 pid_t extra[2];
2977 char prefix[] = " ";
2978
2979 c = columns();
2980 if (c > sizeof(prefix) - 1)
2981 c -= sizeof(prefix) - 1;
2982 else
2983 c = 0;
2984
2985 if (i->main_pid > 0)
2986 extra[k++] = i->main_pid;
2987
2988 if (i->control_pid > 0)
2989 extra[k++] = i->control_pid;
2990
2991 show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix,
2992 c, false, extra, k, flags);
2993 }
2994 }
2995
2996 if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) {
2997 printf("\n");
2998 show_journal_by_unit(stdout,
2999 i->id,
3000 arg_output,
3001 0,
3002 i->inactive_exit_timestamp_monotonic,
3003 arg_lines,
3004 getuid(),
3005 flags,
3006 arg_scope == UNIT_FILE_SYSTEM,
3007 ellipsized);
3008 }
3009
3010 if (i->need_daemon_reload)
3011 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %sdaemon-reload' recommended.\n",
3012 ansi_highlight_red(),
3013 ansi_highlight_off(),
3014 arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
3015 }
3016
3017 static void show_unit_help(UnitStatusInfo *i) {
3018 char **p;
3019
3020 assert(i);
3021
3022 if (!i->documentation) {
3023 log_info("Documentation for %s not known.", i->id);
3024 return;
3025 }
3026
3027 STRV_FOREACH(p, i->documentation) {
3028
3029 if (startswith(*p, "man:")) {
3030 const char *args[4] = { "man", NULL, NULL, NULL };
3031 _cleanup_free_ char *page = NULL, *section = NULL;
3032 char *e = NULL;
3033 pid_t pid;
3034 size_t k;
3035
3036 k = strlen(*p);
3037
3038 if ((*p)[k-1] == ')')
3039 e = strrchr(*p, '(');
3040
3041 if (e) {
3042 page = strndup((*p) + 4, e - *p - 4);
3043 section = strndup(e + 1, *p + k - e - 2);
3044 if (!page || !section) {
3045 log_oom();
3046 return;
3047 }
3048
3049 args[1] = section;
3050 args[2] = page;
3051 } else
3052 args[1] = *p + 4;
3053
3054 pid = fork();
3055 if (pid < 0) {
3056 log_error("Failed to fork: %m");
3057 continue;
3058 }
3059
3060 if (pid == 0) {
3061 /* Child */
3062 execvp(args[0], (char**) args);
3063 log_error("Failed to execute man: %m");
3064 _exit(EXIT_FAILURE);
3065 }
3066
3067 wait_for_terminate(pid, NULL);
3068 } else
3069 log_info("Can't show: %s", *p);
3070 }
3071 }
3072
3073 static int status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) {
3074 int r;
3075
3076 assert(name);
3077 assert(m);
3078 assert(i);
3079
3080 switch (contents[0]) {
3081
3082 case SD_BUS_TYPE_STRING: {
3083 const char *s;
3084
3085 r = sd_bus_message_read(m, "s", &s);
3086 if (r < 0)
3087 return bus_log_parse_error(r);
3088
3089 if (!isempty(s)) {
3090 if (streq(name, "Id"))
3091 i->id = s;
3092 else if (streq(name, "LoadState"))
3093 i->load_state = s;
3094 else if (streq(name, "ActiveState"))
3095 i->active_state = s;
3096 else if (streq(name, "SubState"))
3097 i->sub_state = s;
3098 else if (streq(name, "Description"))
3099 i->description = s;
3100 else if (streq(name, "FragmentPath"))
3101 i->fragment_path = s;
3102 else if (streq(name, "SourcePath"))
3103 i->source_path = s;
3104 #ifndef NOLEGACY
3105 else if (streq(name, "DefaultControlGroup")) {
3106 const char *e;
3107 e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
3108 if (e)
3109 i->control_group = e;
3110 }
3111 #endif
3112 else if (streq(name, "ControlGroup"))
3113 i->control_group = s;
3114 else if (streq(name, "StatusText"))
3115 i->status_text = s;
3116 else if (streq(name, "PIDFile"))
3117 i->pid_file = s;
3118 else if (streq(name, "SysFSPath"))
3119 i->sysfs_path = s;
3120 else if (streq(name, "Where"))
3121 i->where = s;
3122 else if (streq(name, "What"))
3123 i->what = s;
3124 else if (streq(name, "Following"))
3125 i->following = s;
3126 else if (streq(name, "UnitFileState"))
3127 i->unit_file_state = s;
3128 else if (streq(name, "Result"))
3129 i->result = s;
3130 }
3131
3132 break;
3133 }
3134
3135 case SD_BUS_TYPE_BOOLEAN: {
3136 int b;
3137
3138 r = sd_bus_message_read(m, "b", &b);
3139 if (r < 0)
3140 return bus_log_parse_error(r);
3141
3142 if (streq(name, "Accept"))
3143 i->accept = b;
3144 else if (streq(name, "NeedDaemonReload"))
3145 i->need_daemon_reload = b;
3146 else if (streq(name, "ConditionResult"))
3147 i->condition_result = b;
3148
3149 break;
3150 }
3151
3152 case SD_BUS_TYPE_UINT32: {
3153 uint32_t u;
3154
3155 r = sd_bus_message_read(m, "u", &u);
3156 if (r < 0)
3157 return bus_log_parse_error(r);
3158
3159 if (streq(name, "MainPID")) {
3160 if (u > 0) {
3161 i->main_pid = (pid_t) u;
3162 i->running = true;
3163 }
3164 } else if (streq(name, "ControlPID"))
3165 i->control_pid = (pid_t) u;
3166 else if (streq(name, "ExecMainPID")) {
3167 if (u > 0)
3168 i->main_pid = (pid_t) u;
3169 } else if (streq(name, "NAccepted"))
3170 i->n_accepted = u;
3171 else if (streq(name, "NConnections"))
3172 i->n_connections = u;
3173
3174 break;
3175 }
3176
3177 case SD_BUS_TYPE_INT32: {
3178 int32_t j;
3179
3180 r = sd_bus_message_read(m, "i", &j);
3181 if (r < 0)
3182 return bus_log_parse_error(r);
3183
3184 if (streq(name, "ExecMainCode"))
3185 i->exit_code = (int) j;
3186 else if (streq(name, "ExecMainStatus"))
3187 i->exit_status = (int) j;
3188
3189 break;
3190 }
3191
3192 case SD_BUS_TYPE_UINT64: {
3193 uint64_t u;
3194
3195 r = sd_bus_message_read(m, "t", &u);
3196 if (r < 0)
3197 return bus_log_parse_error(r);
3198
3199 if (streq(name, "ExecMainStartTimestamp"))
3200 i->start_timestamp = (usec_t) u;
3201 else if (streq(name, "ExecMainExitTimestamp"))
3202 i->exit_timestamp = (usec_t) u;
3203 else if (streq(name, "ActiveEnterTimestamp"))
3204 i->active_enter_timestamp = (usec_t) u;
3205 else if (streq(name, "InactiveEnterTimestamp"))
3206 i->inactive_enter_timestamp = (usec_t) u;
3207 else if (streq(name, "InactiveExitTimestamp"))
3208 i->inactive_exit_timestamp = (usec_t) u;
3209 else if (streq(name, "InactiveExitTimestampMonotonic"))
3210 i->inactive_exit_timestamp_monotonic = (usec_t) u;
3211 else if (streq(name, "ActiveExitTimestamp"))
3212 i->active_exit_timestamp = (usec_t) u;
3213 else if (streq(name, "ConditionTimestamp"))
3214 i->condition_timestamp = (usec_t) u;
3215
3216 break;
3217 }
3218
3219 case SD_BUS_TYPE_ARRAY:
3220
3221 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3222 _cleanup_free_ ExecStatusInfo *info = NULL;
3223
3224 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3225 if (r < 0)
3226 return bus_log_parse_error(r);
3227
3228 info = new0(ExecStatusInfo, 1);
3229 if (!info)
3230 return log_oom();
3231
3232 while ((r = exec_status_info_deserialize(m, info)) > 0) {
3233
3234 info->name = strdup(name);
3235 if (!info->name)
3236 log_oom();
3237
3238 LIST_PREPEND(exec, i->exec, info);
3239
3240 info = new0(ExecStatusInfo, 1);
3241 if (!info)
3242 log_oom();
3243 }
3244
3245 if (r < 0)
3246 return bus_log_parse_error(r);
3247
3248 r = sd_bus_message_exit_container(m);
3249 if (r < 0)
3250 return bus_log_parse_error(r);
3251
3252 return 0;
3253
3254 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3255 const char *type, *path;
3256
3257 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3258 if (r < 0)
3259 return bus_log_parse_error(r);
3260
3261 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) {
3262
3263 r = strv_extend(&i->listen, type);
3264 if (r < 0)
3265 return r;
3266
3267 r = strv_extend(&i->listen, path);
3268 if (r < 0)
3269 return r;
3270 }
3271 if (r < 0)
3272 return bus_log_parse_error(r);
3273
3274 r = sd_bus_message_exit_container(m);
3275 if (r < 0)
3276 return bus_log_parse_error(r);
3277
3278 return 0;
3279
3280 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "DropInPaths")) {
3281
3282 r = sd_bus_message_read_strv(m, &i->dropin_paths);
3283 if (r < 0)
3284 return bus_log_parse_error(r);
3285
3286 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Documentation")) {
3287
3288 r = sd_bus_message_read_strv(m, &i->documentation);
3289 if (r < 0)
3290 return bus_log_parse_error(r);
3291
3292 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Conditions")) {
3293 const char *cond, *param;
3294 int trigger, negate;
3295 int32_t state;
3296
3297 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
3298 if (r < 0)
3299 return bus_log_parse_error(r);
3300
3301 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
3302 log_debug("%s %d %d %s %d", cond, trigger, negate, param, state);
3303 if (state < 0 && (!trigger || !i->failed_condition)) {
3304 i->failed_condition = cond;
3305 i->failed_condition_trigger = trigger;
3306 i->failed_condition_negate = negate;
3307 i->failed_condition_param = param;
3308 }
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 } else
3318 goto skip;
3319
3320 break;
3321
3322 case SD_BUS_TYPE_STRUCT_BEGIN:
3323
3324 if (streq(name, "LoadError")) {
3325 const char *n, *message;
3326
3327 r = sd_bus_message_read(m, "(ss)", &n, &message);
3328 if (r < 0)
3329 return bus_log_parse_error(r);
3330
3331 if (!isempty(message))
3332 i->load_error = message;
3333 } else
3334 goto skip;
3335
3336 break;
3337
3338 default:
3339 goto skip;
3340 }
3341
3342 return 0;
3343
3344 skip:
3345 r = sd_bus_message_skip(m, contents);
3346 if (r < 0)
3347 return bus_log_parse_error(r);
3348
3349 return 0;
3350 }
3351
3352 static int print_property(const char *name, sd_bus_message *m, const char *contents) {
3353 int r;
3354
3355 assert(name);
3356 assert(m);
3357
3358 /* This is a low-level property printer, see
3359 * print_status_info() for the nicer output */
3360
3361 if (arg_properties && !strv_find(arg_properties, name)) {
3362 /* skip what we didn't read */
3363 r = sd_bus_message_skip(m, contents);
3364 return r;
3365 }
3366
3367 switch (contents[0]) {
3368
3369 case SD_BUS_TYPE_STRUCT_BEGIN:
3370
3371 if (contents[1] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) {
3372 uint32_t u;
3373
3374 r = sd_bus_message_read(m, "(uo)", &u, NULL);
3375 if (r < 0)
3376 return bus_log_parse_error(r);
3377
3378 if (u > 0)
3379 printf("%s=%u\n", name, (unsigned) u);
3380 else if (arg_all)
3381 printf("%s=\n", name);
3382
3383 return 0;
3384
3385 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Unit")) {
3386 const char *s;
3387
3388 r = sd_bus_message_read(m, "(so)", &s, NULL);
3389 if (r < 0)
3390 return bus_log_parse_error(r);
3391
3392 if (arg_all || !isempty(s))
3393 printf("%s=%s\n", name, s);
3394
3395 return 0;
3396
3397 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) {
3398 const char *a = NULL, *b = NULL;
3399
3400 r = sd_bus_message_read(m, "(ss)", &a, &b);
3401 if (r < 0)
3402 return bus_log_parse_error(r);
3403
3404 if (arg_all || !isempty(a) || !isempty(b))
3405 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
3406
3407 return 0;
3408 }
3409
3410 break;
3411
3412 case SD_BUS_TYPE_ARRAY:
3413
3414 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) {
3415 const char *path;
3416 int ignore;
3417
3418 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)");
3419 if (r < 0)
3420 return bus_log_parse_error(r);
3421
3422 while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0)
3423 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
3424
3425 if (r < 0)
3426 return bus_log_parse_error(r);
3427
3428 r = sd_bus_message_exit_container(m);
3429 if (r < 0)
3430 return bus_log_parse_error(r);
3431
3432 return 0;
3433
3434 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) {
3435 const char *type, *path;
3436
3437 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3438 if (r < 0)
3439 return bus_log_parse_error(r);
3440
3441 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3442 printf("%s=%s\n", type, path);
3443 if (r < 0)
3444 return bus_log_parse_error(r);
3445
3446 r = sd_bus_message_exit_container(m);
3447 if (r < 0)
3448 return bus_log_parse_error(r);
3449
3450 return 0;
3451
3452 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3453 const char *type, *path;
3454
3455 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3456 if (r < 0)
3457 return bus_log_parse_error(r);
3458
3459 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3460 printf("Listen%s=%s\n", type, path);
3461 if (r < 0)
3462 return bus_log_parse_error(r);
3463
3464 r = sd_bus_message_exit_container(m);
3465 if (r < 0)
3466 return bus_log_parse_error(r);
3467
3468 return 0;
3469
3470 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Timers")) {
3471 const char *base;
3472 uint64_t value, next_elapse;
3473
3474 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)");
3475 if (r < 0)
3476 return bus_log_parse_error(r);
3477
3478 while ((r = sd_bus_message_read(m, "(stt)", &base, &value, &next_elapse)) > 0) {
3479 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3480
3481 printf("%s={ value=%s ; next_elapse=%s }\n",
3482 base,
3483 format_timespan(timespan1, sizeof(timespan1), value, 0),
3484 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
3485 }
3486 if (r < 0)
3487 return bus_log_parse_error(r);
3488
3489 r = sd_bus_message_exit_container(m);
3490 if (r < 0)
3491 return bus_log_parse_error(r);
3492
3493 return 0;
3494
3495 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3496 ExecStatusInfo info = {};
3497
3498 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3499 if (r < 0)
3500 return bus_log_parse_error(r);
3501
3502 while ((r = exec_status_info_deserialize(m, &info)) > 0) {
3503 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3504 _cleanup_free_ char *tt;
3505
3506 tt = strv_join(info.argv, " ");
3507
3508 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3509 name,
3510 strna(info.path),
3511 strna(tt),
3512 yes_no(info.ignore),
3513 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3514 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3515 (unsigned) info. pid,
3516 sigchld_code_to_string(info.code),
3517 info.status,
3518 info.code == CLD_EXITED ? "" : "/",
3519 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3520
3521 free(info.path);
3522 strv_free(info.argv);
3523 zero(info);
3524 }
3525
3526 r = sd_bus_message_exit_container(m);
3527 if (r < 0)
3528 return bus_log_parse_error(r);
3529
3530 return 0;
3531
3532 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) {
3533 const char *path, *rwm;
3534
3535 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3536 if (r < 0)
3537 return bus_log_parse_error(r);
3538
3539 while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0)
3540 printf("%s=%s %s\n", name, strna(path), strna(rwm));
3541 if (r < 0)
3542 return bus_log_parse_error(r);
3543
3544 r = sd_bus_message_exit_container(m);
3545 if (r < 0)
3546 return bus_log_parse_error(r);
3547
3548 return 0;
3549
3550 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "BlockIODeviceWeight")) {
3551 const char *path;
3552 uint64_t weight;
3553
3554 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3555 if (r < 0)
3556 return bus_log_parse_error(r);
3557
3558 while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0)
3559 printf("%s=%s %" PRIu64 "\n", name, strna(path), weight);
3560 if (r < 0)
3561 return bus_log_parse_error(r);
3562
3563 r = sd_bus_message_exit_container(m);
3564 if (r < 0)
3565 return bus_log_parse_error(r);
3566
3567 return 0;
3568
3569 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && (streq(name, "BlockIOReadBandwidth") || streq(name, "BlockIOWriteBandwidth"))) {
3570 const char *path;
3571 uint64_t bandwidth;
3572
3573 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3574 if (r < 0)
3575 return bus_log_parse_error(r);
3576
3577 while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0)
3578 printf("%s=%s %" PRIu64 "\n", name, strna(path), bandwidth);
3579 if (r < 0)
3580 return bus_log_parse_error(r);
3581
3582 r = sd_bus_message_exit_container(m);
3583 if (r < 0)
3584 return bus_log_parse_error(r);
3585
3586 return 0;
3587 }
3588
3589 break;
3590 }
3591
3592 r = bus_print_property(name, m, arg_all);
3593 if (r < 0)
3594 return bus_log_parse_error(r);
3595
3596 if (r == 0) {
3597 r = sd_bus_message_skip(m, contents);
3598 if (r < 0)
3599 return bus_log_parse_error(r);
3600
3601 if (arg_all)
3602 printf("%s=[unprintable]\n", name);
3603 }
3604
3605 return 0;
3606 }
3607
3608 static int show_one(
3609 const char *verb,
3610 sd_bus *bus,
3611 const char *path,
3612 bool show_properties,
3613 bool *new_line,
3614 bool *ellipsized) {
3615
3616 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3617 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3618 UnitStatusInfo info = {};
3619 ExecStatusInfo *p;
3620 int r;
3621
3622 assert(path);
3623 assert(new_line);
3624
3625 log_debug("Showing one %s", path);
3626
3627 r = sd_bus_call_method(
3628 bus,
3629 "org.freedesktop.systemd1",
3630 path,
3631 "org.freedesktop.DBus.Properties",
3632 "GetAll",
3633 &error,
3634 &reply,
3635 "s", "");
3636 if (r < 0) {
3637 log_error("Failed to get properties: %s", bus_error_message(&error, r));
3638 return r;
3639 }
3640
3641 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
3642 if (r < 0)
3643 return bus_log_parse_error(r);
3644
3645 if (*new_line)
3646 printf("\n");
3647
3648 *new_line = true;
3649
3650 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
3651 const char *name, *contents;
3652
3653 r = sd_bus_message_read(reply, "s", &name);
3654 if (r < 0)
3655 return bus_log_parse_error(r);
3656
3657 r = sd_bus_message_peek_type(reply, NULL, &contents);
3658 if (r < 0)
3659 return bus_log_parse_error(r);
3660
3661 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents);
3662 if (r < 0)
3663 return bus_log_parse_error(r);
3664
3665 if (show_properties)
3666 r = print_property(name, reply, contents);
3667 else
3668 r = status_property(name, reply, &info, contents);
3669 if (r < 0)
3670 return r;
3671
3672 r = sd_bus_message_exit_container(reply);
3673 if (r < 0)
3674 return bus_log_parse_error(r);
3675
3676 r = sd_bus_message_exit_container(reply);
3677 if (r < 0)
3678 return bus_log_parse_error(r);
3679 }
3680 if (r < 0)
3681 return bus_log_parse_error(r);
3682
3683 r = sd_bus_message_exit_container(reply);
3684 if (r < 0)
3685 return bus_log_parse_error(r);
3686
3687 r = 0;
3688
3689 if (!show_properties) {
3690 if (streq(verb, "help"))
3691 show_unit_help(&info);
3692 else
3693 print_status_info(&info, ellipsized);
3694 }
3695
3696 strv_free(info.documentation);
3697 strv_free(info.dropin_paths);
3698 strv_free(info.listen);
3699
3700 if (!streq_ptr(info.active_state, "active") &&
3701 !streq_ptr(info.active_state, "reloading") &&
3702 streq(verb, "status")) {
3703 /* According to LSB: "program not running" */
3704 /* 0: program is running or service is OK
3705 * 1: program is dead and /var/run pid file exists
3706 * 2: program is dead and /var/lock lock file exists
3707 * 3: program is not running
3708 * 4: program or service status is unknown
3709 */
3710 if (info.pid_file && access(info.pid_file, F_OK) == 0)
3711 r = 1;
3712 else
3713 r = 3;
3714 }
3715
3716 while ((p = info.exec)) {
3717 LIST_REMOVE(exec, info.exec, p);
3718 exec_status_info_free(p);
3719 }
3720
3721 return r;
3722 }
3723
3724 static int get_unit_dbus_path_by_pid(
3725 sd_bus *bus,
3726 uint32_t pid,
3727 char **unit) {
3728
3729 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3730 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3731 char *u;
3732 int r;
3733
3734 r = sd_bus_call_method(
3735 bus,
3736 "org.freedesktop.systemd1",
3737 "/org/freedesktop/systemd1",
3738 "org.freedesktop.systemd1.Manager",
3739 "GetUnitByPID",
3740 &error,
3741 &reply,
3742 "u", pid);
3743 if (r < 0) {
3744 log_error("Failed to get unit for PID %lu: %s", (unsigned long) pid, bus_error_message(&error, r));
3745 return r;
3746 }
3747
3748 r = sd_bus_message_read(reply, "o", &u);
3749 if (r < 0)
3750 return bus_log_parse_error(r);
3751
3752 u = strdup(u);
3753 if (!u)
3754 return log_oom();
3755
3756 *unit = u;
3757 return 0;
3758 }
3759
3760 static int show_all(
3761 const char* verb,
3762 sd_bus *bus,
3763 bool show_properties,
3764 bool *new_line,
3765 bool *ellipsized) {
3766
3767 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3768 _cleanup_free_ UnitInfo *unit_infos = NULL;
3769 const UnitInfo *u;
3770 unsigned c;
3771 int r;
3772
3773 r = get_unit_list(bus, &reply, &unit_infos, NULL);
3774 if (r < 0)
3775 return r;
3776
3777 pager_open_if_enabled();
3778
3779 c = (unsigned) r;
3780
3781 qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
3782
3783 for (u = unit_infos; u < unit_infos + c; u++) {
3784 _cleanup_free_ char *p = NULL;
3785
3786 p = unit_dbus_path_from_name(u->id);
3787 if (!p)
3788 return log_oom();
3789
3790 r = show_one(verb, bus, p, show_properties, new_line, ellipsized);
3791 if (r != 0)
3792 return r;
3793 }
3794
3795 return 0;
3796 }
3797
3798 static int cat(sd_bus *bus, char **args) {
3799 _cleanup_free_ char *unit = NULL;
3800 _cleanup_strv_free_ char **names = NULL;
3801 char **name;
3802 bool first = true;
3803 int r = 0;
3804
3805 assert(bus);
3806 assert(args);
3807
3808 r = expand_names(bus, args + 1, NULL, &names);
3809 if (r < 0)
3810 log_error("Failed to expand names: %s", strerror(-r));
3811
3812 pager_open_if_enabled();
3813
3814 STRV_FOREACH(name, names) {
3815 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3816 _cleanup_strv_free_ char **dropin_paths = NULL;
3817 _cleanup_free_ char *fragment_path = NULL;
3818 char **path;
3819
3820 unit = unit_dbus_path_from_name(*name);
3821 if (!unit)
3822 return log_oom();
3823
3824 if (need_daemon_reload(bus, *name) > 0)
3825 log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.",
3826 *name, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
3827
3828 r = sd_bus_get_property_string(
3829 bus,
3830 "org.freedesktop.systemd1",
3831 unit,
3832 "org.freedesktop.systemd1.Unit",
3833 "FragmentPath",
3834 &error,
3835 &fragment_path);
3836 if (r < 0) {
3837 log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r));
3838 continue;
3839 }
3840
3841 r = sd_bus_get_property_strv(
3842 bus,
3843 "org.freedesktop.systemd1",
3844 unit,
3845 "org.freedesktop.systemd1.Unit",
3846 "DropInPaths",
3847 &error,
3848 &dropin_paths);
3849 if (r < 0) {
3850 log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r));
3851 continue;
3852 }
3853
3854 if (first)
3855 first = false;
3856 else
3857 puts("");
3858
3859 if (!isempty(fragment_path)) {
3860 printf("%s# %s%s\n",
3861 ansi_highlight_blue(),
3862 fragment_path,
3863 ansi_highlight_off());
3864 fflush(stdout);
3865
3866 r = sendfile_full(STDOUT_FILENO, fragment_path);
3867 if (r < 0) {
3868 log_warning("Failed to cat %s: %s", fragment_path, strerror(-r));
3869 continue;
3870 }
3871 }
3872
3873 STRV_FOREACH(path, dropin_paths) {
3874 printf("%s%s# %s%s\n",
3875 isempty(fragment_path) && path == dropin_paths ? "" : "\n",
3876 ansi_highlight_blue(),
3877 *path,
3878 ansi_highlight_off());
3879 fflush(stdout);
3880
3881 r = sendfile_full(STDOUT_FILENO, *path);
3882 if (r < 0) {
3883 log_warning("Failed to cat %s: %s", *path, strerror(-r));
3884 continue;
3885 }
3886 }
3887 }
3888
3889 return r < 0 ? r : 0;
3890 }
3891
3892 static int show(sd_bus *bus, char **args) {
3893 bool show_properties, show_status, new_line = false;
3894 bool ellipsized = false;
3895 int r, ret = 0;
3896
3897 assert(bus);
3898 assert(args);
3899
3900 show_properties = streq(args[0], "show");
3901 show_status = streq(args[0], "status");
3902
3903 if (show_properties)
3904 pager_open_if_enabled();
3905
3906 /* If no argument is specified inspect the manager itself */
3907
3908 if (show_properties && strv_length(args) <= 1)
3909 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line, &ellipsized);
3910
3911 if (show_status && strv_length(args) <= 1)
3912 ret = show_all(args[0], bus, false, &new_line, &ellipsized);
3913 else {
3914 _cleanup_free_ char **patterns = NULL;
3915 char **name;
3916
3917 STRV_FOREACH(name, args + 1) {
3918 _cleanup_free_ char *unit = NULL;
3919 uint32_t id;
3920
3921 if (safe_atou32(*name, &id) < 0) {
3922 if (strv_push(&patterns, *name) < 0)
3923 return log_oom();
3924
3925 continue;
3926 } else if (show_properties) {
3927 /* Interpret as job id */
3928 if (asprintf(&unit, "/org/freedesktop/systemd1/job/%u", id) < 0)
3929 return log_oom();
3930
3931 } else {
3932 /* Interpret as PID */
3933 r = get_unit_dbus_path_by_pid(bus, id, &unit);
3934 if (r < 0) {
3935 ret = r;
3936 continue;
3937 }
3938 }
3939
3940 show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
3941 }
3942
3943 if (!strv_isempty(patterns)) {
3944 _cleanup_strv_free_ char **names = NULL;
3945
3946 r = expand_names(bus, patterns, NULL, &names);
3947 if (r < 0)
3948 log_error("Failed to expand names: %s", strerror(-r));
3949
3950 STRV_FOREACH(name, names) {
3951 _cleanup_free_ char *unit;
3952
3953 unit = unit_dbus_path_from_name(*name);
3954 if (!unit)
3955 return log_oom();
3956
3957 show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
3958 }
3959 }
3960 }
3961
3962 if (ellipsized && !arg_quiet)
3963 printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
3964
3965 return ret;
3966 }
3967
3968 static int append_assignment(sd_bus_message *m, const char *assignment) {
3969 const char *eq;
3970 char *field;
3971 int r;
3972
3973 assert(m);
3974 assert(assignment);
3975
3976 eq = strchr(assignment, '=');
3977 if (!eq) {
3978 log_error("Not an assignment: %s", assignment);
3979 return -EINVAL;
3980 }
3981
3982 field = strndupa(assignment, eq - assignment);
3983 eq ++;
3984
3985 r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field);
3986 if (r < 0)
3987 return bus_log_create_error(r);
3988
3989 if (streq(field, "CPUAccounting") ||
3990 streq(field, "MemoryAccounting") ||
3991 streq(field, "BlockIOAccounting")) {
3992
3993 r = parse_boolean(eq);
3994 if (r < 0) {
3995 log_error("Failed to parse boolean assignment %s.", assignment);
3996 return -EINVAL;
3997 }
3998
3999 r = sd_bus_message_append(m, "v", "b", r);
4000
4001 } else if (streq(field, "MemoryLimit")) {
4002 off_t bytes;
4003
4004 r = parse_bytes(eq, &bytes);
4005 if (r < 0) {
4006 log_error("Failed to parse bytes specification %s", assignment);
4007 return -EINVAL;
4008 }
4009
4010 r = sd_bus_message_append(m, "v", "t", (uint64_t) bytes);
4011
4012 } else if (streq(field, "CPUShares") || streq(field, "BlockIOWeight")) {
4013 uint64_t u;
4014
4015 r = safe_atou64(eq, &u);
4016 if (r < 0) {
4017 log_error("Failed to parse %s value %s.", field, eq);
4018 return -EINVAL;
4019 }
4020
4021 r = sd_bus_message_append(m, "v", "t", u);
4022
4023 } else if (streq(field, "DevicePolicy"))
4024 r = sd_bus_message_append(m, "v", "s", eq);
4025
4026 else if (streq(field, "DeviceAllow")) {
4027
4028 if (isempty(eq))
4029 r = sd_bus_message_append(m, "v", "a(ss)", 0);
4030 else {
4031 const char *path, *rwm;
4032 char *e;
4033
4034 e = strchr(eq, ' ');
4035 if (e) {
4036 path = strndupa(eq, e - eq);
4037 rwm = e+1;
4038 } else {
4039 path = eq;
4040 rwm = "";
4041 }
4042
4043 if (!path_startswith(path, "/dev")) {
4044 log_error("%s is not a device file in /dev.", path);
4045 return -EINVAL;
4046 }
4047
4048 r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm);
4049 }
4050
4051 } else if (streq(field, "BlockIOReadBandwidth") || streq(field, "BlockIOWriteBandwidth")) {
4052
4053 if (isempty(eq))
4054 r = sd_bus_message_append(m, "v", "a(st)", 0);
4055 else {
4056 const char *path, *bandwidth;
4057 off_t bytes;
4058 char *e;
4059
4060 e = strchr(eq, ' ');
4061 if (e) {
4062 path = strndupa(eq, e - eq);
4063 bandwidth = e+1;
4064 } else {
4065 log_error("Failed to parse %s value %s.", field, eq);
4066 return -EINVAL;
4067 }
4068
4069 if (!path_startswith(path, "/dev")) {
4070 log_error("%s is not a device file in /dev.", path);
4071 return -EINVAL;
4072 }
4073
4074 r = parse_bytes(bandwidth, &bytes);
4075 if (r < 0) {
4076 log_error("Failed to parse byte value %s.", bandwidth);
4077 return -EINVAL;
4078 }
4079
4080 r = sd_bus_message_append(m, "v", "a(st)", 1, path, (uint64_t) bytes);
4081 }
4082
4083 } else if (streq(field, "BlockIODeviceWeight")) {
4084
4085 if (isempty(eq))
4086 r = sd_bus_message_append(m, "v", "a(st)", 0);
4087 else {
4088 const char *path, *weight;
4089 uint64_t u;
4090 char *e;
4091
4092 e = strchr(eq, ' ');
4093 if (e) {
4094 path = strndupa(eq, e - eq);
4095 weight = e+1;
4096 } else {
4097 log_error("Failed to parse %s value %s.", field, eq);
4098 return -EINVAL;
4099 }
4100
4101 if (!path_startswith(path, "/dev")) {
4102 log_error("%s is not a device file in /dev.", path);
4103 return -EINVAL;
4104 }
4105
4106 r = safe_atou64(weight, &u);
4107 if (r < 0) {
4108 log_error("Failed to parse %s value %s.", field, weight);
4109 return -EINVAL;
4110 }
4111 r = sd_bus_message_append(m, "v", "a(st)", path, u);
4112 }
4113
4114 } else {
4115 log_error("Unknown assignment %s.", assignment);
4116 return -EINVAL;
4117 }
4118
4119 if (r < 0)
4120 return bus_log_create_error(r);
4121
4122 return 0;
4123 }
4124
4125 static int set_property(sd_bus *bus, char **args) {
4126 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4127 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4128 _cleanup_free_ char *n = NULL;
4129 char **i;
4130 int r;
4131
4132 r = sd_bus_message_new_method_call(
4133 bus,
4134 "org.freedesktop.systemd1",
4135 "/org/freedesktop/systemd1",
4136 "org.freedesktop.systemd1.Manager",
4137 "SetUnitProperties",
4138 &m);
4139 if (r < 0)
4140 return bus_log_create_error(r);
4141
4142 n = unit_name_mangle(args[1], MANGLE_NOGLOB);
4143 if (!n)
4144 return log_oom();
4145
4146 r = sd_bus_message_append(m, "sb", n, arg_runtime);
4147 if (r < 0)
4148 return bus_log_create_error(r);
4149
4150 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
4151 if (r < 0)
4152 return bus_log_create_error(r);
4153
4154 STRV_FOREACH(i, args + 2) {
4155 r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
4156 if (r < 0)
4157 return bus_log_create_error(r);
4158
4159 r = append_assignment(m, *i);
4160 if (r < 0)
4161 return r;
4162
4163 r = sd_bus_message_close_container(m);
4164 if (r < 0)
4165 return bus_log_create_error(r);
4166 }
4167
4168 r = sd_bus_message_close_container(m);
4169 if (r < 0)
4170 return bus_log_create_error(r);
4171
4172 r = sd_bus_call(bus, m, 0, &error, NULL);
4173 if (r < 0) {
4174 log_error("Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
4175 return r;
4176 }
4177
4178 return 0;
4179 }
4180
4181 static int snapshot(sd_bus *bus, char **args) {
4182 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4183 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4184 _cleanup_free_ char *n = NULL, *id = NULL;
4185 const char *path;
4186 int r;
4187
4188 if (strv_length(args) > 1)
4189 n = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".snapshot");
4190 else
4191 n = strdup("");
4192 if (!n)
4193 return log_oom();
4194
4195 r = sd_bus_call_method(
4196 bus,
4197 "org.freedesktop.systemd1",
4198 "/org/freedesktop/systemd1",
4199 "org.freedesktop.systemd1.Manager",
4200 "CreateSnapshot",
4201 &error,
4202 &reply,
4203 "sb", n, false);
4204 if (r < 0) {
4205 log_error("Failed to create snapshot: %s", bus_error_message(&error, r));
4206 return r;
4207 }
4208
4209 r = sd_bus_message_read(reply, "o", &path);
4210 if (r < 0)
4211 return bus_log_parse_error(r);
4212
4213 r = sd_bus_get_property_string(
4214 bus,
4215 "org.freedesktop.systemd1",
4216 path,
4217 "org.freedesktop.systemd1.Unit",
4218 "Id",
4219 &error,
4220 &id);
4221 if (r < 0) {
4222 log_error("Failed to get ID of snapshot: %s", bus_error_message(&error, r));
4223 return r;
4224 }
4225
4226 if (!arg_quiet)
4227 puts(id);
4228
4229 return 0;
4230 }
4231
4232 static int delete_snapshot(sd_bus *bus, char **args) {
4233 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4234 _cleanup_strv_free_ char **names = NULL;
4235 char **name;
4236 int r, q;
4237
4238 assert(args);
4239
4240 r = expand_names(bus, args + 1, ".snapshot", &names);
4241 if (r < 0)
4242 log_error("Failed to expand names: %s", strerror(-r));
4243
4244 STRV_FOREACH(name, names) {
4245 q = sd_bus_call_method(
4246 bus,
4247 "org.freedesktop.systemd1",
4248 "/org/freedesktop/systemd1",
4249 "org.freedesktop.systemd1.Manager",
4250 "RemoveSnapshot",
4251 &error,
4252 NULL,
4253 "s", *name);
4254 if (q < 0) {
4255 log_error("Failed to remove snapshot %s: %s",
4256 *name, bus_error_message(&error, r));
4257 if (r == 0)
4258 r = q;
4259 }
4260 }
4261
4262 return r;
4263 }
4264
4265 static int daemon_reload(sd_bus *bus, char **args) {
4266 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4267 const char *method;
4268 int r;
4269
4270 if (arg_action == ACTION_RELOAD)
4271 method = "Reload";
4272 else if (arg_action == ACTION_REEXEC)
4273 method = "Reexecute";
4274 else {
4275 assert(arg_action == ACTION_SYSTEMCTL);
4276
4277 method =
4278 streq(args[0], "clear-jobs") ||
4279 streq(args[0], "cancel") ? "ClearJobs" :
4280 streq(args[0], "daemon-reexec") ? "Reexecute" :
4281 streq(args[0], "reset-failed") ? "ResetFailed" :
4282 streq(args[0], "halt") ? "Halt" :
4283 streq(args[0], "poweroff") ? "PowerOff" :
4284 streq(args[0], "reboot") ? "Reboot" :
4285 streq(args[0], "kexec") ? "KExec" :
4286 streq(args[0], "exit") ? "Exit" :
4287 /* "daemon-reload" */ "Reload";
4288 }
4289
4290 r = sd_bus_call_method(
4291 bus,
4292 "org.freedesktop.systemd1",
4293 "/org/freedesktop/systemd1",
4294 "org.freedesktop.systemd1.Manager",
4295 method,
4296 &error,
4297 NULL,
4298 NULL);
4299
4300 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
4301 /* There's always a fallback possible for
4302 * legacy actions. */
4303 r = -EADDRNOTAVAIL;
4304 else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute"))
4305 /* On reexecution, we expect a disconnect, not a
4306 * reply */
4307 r = 0;
4308 else if (r < 0)
4309 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4310
4311 return r < 0 ? r : 0;
4312 }
4313
4314 static int reset_failed(sd_bus *bus, char **args) {
4315 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4316 _cleanup_strv_free_ char **names = NULL;
4317 char **name;
4318 int r, q;
4319
4320 if (strv_length(args) <= 1)
4321 return daemon_reload(bus, args);
4322
4323 r = expand_names(bus, args + 1, NULL, &names);
4324 if (r < 0)
4325 log_error("Failed to expand names: %s", strerror(-r));
4326
4327 STRV_FOREACH(name, names) {
4328 q = sd_bus_call_method(
4329 bus,
4330 "org.freedesktop.systemd1",
4331 "/org/freedesktop/systemd1",
4332 "org.freedesktop.systemd1.Manager",
4333 "ResetFailedUnit",
4334 &error,
4335 NULL,
4336 "s", *name);
4337 if (q < 0) {
4338 log_error("Failed to reset failed state of unit %s: %s",
4339 *name, bus_error_message(&error, r));
4340 if (r == 0)
4341 r = q;
4342 }
4343 }
4344
4345 return r;
4346 }
4347
4348 static int show_environment(sd_bus *bus, char **args) {
4349 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4350 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4351 const char *text;
4352 int r;
4353
4354 pager_open_if_enabled();
4355
4356 r = sd_bus_get_property(
4357 bus,
4358 "org.freedesktop.systemd1",
4359 "/org/freedesktop/systemd1",
4360 "org.freedesktop.systemd1.Manager",
4361 "Environment",
4362 &error,
4363 &reply,
4364 "as");
4365 if (r < 0) {
4366 log_error("Failed to get environment: %s", bus_error_message(&error, r));
4367 return r;
4368 }
4369
4370 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
4371 if (r < 0)
4372 return bus_log_parse_error(r);
4373
4374 while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0)
4375 puts(text);
4376 if (r < 0)
4377 return bus_log_parse_error(r);
4378
4379 r = sd_bus_message_exit_container(reply);
4380 if (r < 0)
4381 return bus_log_parse_error(r);
4382
4383 return 0;
4384 }
4385
4386 static int switch_root(sd_bus *bus, char **args) {
4387 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4388 _cleanup_free_ char *init = NULL;
4389 const char *root;
4390 unsigned l;
4391 int r;
4392
4393 l = strv_length(args);
4394 if (l < 2 || l > 3) {
4395 log_error("Wrong number of arguments.");
4396 return -EINVAL;
4397 }
4398
4399 root = args[1];
4400
4401 if (l >= 3)
4402 init = strdup(args[2]);
4403 else {
4404 parse_env_file("/proc/cmdline", WHITESPACE,
4405 "init", &init,
4406 NULL);
4407
4408 if (!init)
4409 init = strdup("");
4410 }
4411
4412 if (!init)
4413 return log_oom();
4414
4415 log_debug("switching root - root: %s; init: %s", root, init);
4416
4417 r = sd_bus_call_method(
4418 bus,
4419 "org.freedesktop.systemd1",
4420 "/org/freedesktop/systemd1",
4421 "org.freedesktop.systemd1.Manager",
4422 "SwitchRoot",
4423 &error,
4424 NULL,
4425 "ss", root, init);
4426 if (r < 0) {
4427 log_error("Failed to switch root: %s", bus_error_message(&error, r));
4428 return r;
4429 }
4430
4431 return 0;
4432 }
4433
4434 static int set_environment(sd_bus *bus, char **args) {
4435 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4436 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4437 const char *method;
4438 int r;
4439
4440 assert(bus);
4441 assert(args);
4442
4443 method = streq(args[0], "set-environment")
4444 ? "SetEnvironment"
4445 : "UnsetEnvironment";
4446
4447 r = sd_bus_message_new_method_call(
4448 bus,
4449 "org.freedesktop.systemd1",
4450 "/org/freedesktop/systemd1",
4451 "org.freedesktop.systemd1.Manager",
4452 method,
4453 &m);
4454 if (r < 0)
4455 return bus_log_create_error(r);
4456
4457 r = sd_bus_message_append_strv(m, args + 1);
4458 if (r < 0)
4459 return bus_log_create_error(r);
4460
4461 r = sd_bus_call(bus, m, 0, &error, NULL);
4462 if (r < 0) {
4463 log_error("Failed to set environment: %s", bus_error_message(&error, r));
4464 return r;
4465 }
4466
4467 return 0;
4468 }
4469
4470 static int enable_sysv_units(const char *verb, char **args) {
4471 int r = 0;
4472
4473 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
4474 unsigned f = 1, t = 1;
4475 _cleanup_lookup_paths_free_ LookupPaths paths = {};
4476
4477 if (arg_scope != UNIT_FILE_SYSTEM)
4478 return 0;
4479
4480 if (!streq(verb, "enable") &&
4481 !streq(verb, "disable") &&
4482 !streq(verb, "is-enabled"))
4483 return 0;
4484
4485 /* Processes all SysV units, and reshuffles the array so that
4486 * afterwards only the native units remain */
4487
4488 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
4489 if (r < 0)
4490 return r;
4491
4492 r = 0;
4493 for (f = 0; args[f]; f++) {
4494 const char *name;
4495 _cleanup_free_ char *p = NULL, *q = NULL;
4496 bool found_native = false, found_sysv;
4497 unsigned c = 1;
4498 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
4499 char **k, *l;
4500 int j;
4501 pid_t pid;
4502 siginfo_t status;
4503
4504 name = args[f];
4505
4506 if (!endswith(name, ".service"))
4507 continue;
4508
4509 if (path_is_absolute(name))
4510 continue;
4511
4512 STRV_FOREACH(k, paths.unit_path) {
4513 if (!isempty(arg_root))
4514 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
4515 else
4516 asprintf(&p, "%s/%s", *k, name);
4517
4518 if (!p) {
4519 r = log_oom();
4520 goto finish;
4521 }
4522
4523 found_native = access(p, F_OK) >= 0;
4524 free(p);
4525 p = NULL;
4526
4527 if (found_native)
4528 break;
4529 }
4530
4531 if (found_native)
4532 continue;
4533
4534 if (!isempty(arg_root))
4535 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
4536 else
4537 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
4538 if (!p) {
4539 r = log_oom();
4540 goto finish;
4541 }
4542
4543 p[strlen(p) - sizeof(".service") + 1] = 0;
4544 found_sysv = access(p, F_OK) >= 0;
4545
4546 if (!found_sysv)
4547 continue;
4548
4549 /* Mark this entry, so that we don't try enabling it as native unit */
4550 args[f] = (char*) "";
4551
4552 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4553
4554 if (!isempty(arg_root))
4555 argv[c++] = q = strappend("--root=", arg_root);
4556
4557 argv[c++] = basename(p);
4558 argv[c++] =
4559 streq(verb, "enable") ? "on" :
4560 streq(verb, "disable") ? "off" : "--level=5";
4561 argv[c] = NULL;
4562
4563 l = strv_join((char**)argv, " ");
4564 if (!l) {
4565 r = log_oom();
4566 goto finish;
4567 }
4568
4569 log_info("Executing %s", l);
4570 free(l);
4571
4572 pid = fork();
4573 if (pid < 0) {
4574 log_error("Failed to fork: %m");
4575 r = -errno;
4576 goto finish;
4577 } else if (pid == 0) {
4578 /* Child */
4579
4580 execv(argv[0], (char**) argv);
4581 _exit(EXIT_FAILURE);
4582 }
4583
4584 j = wait_for_terminate(pid, &status);
4585 if (j < 0) {
4586 log_error("Failed to wait for child: %s", strerror(-r));
4587 r = j;
4588 goto finish;
4589 }
4590
4591 if (status.si_code == CLD_EXITED) {
4592 if (streq(verb, "is-enabled")) {
4593 if (status.si_status == 0) {
4594 if (!arg_quiet)
4595 puts("enabled");
4596 r = 1;
4597 } else {
4598 if (!arg_quiet)
4599 puts("disabled");
4600 }
4601
4602 } else if (status.si_status != 0) {
4603 r = -EINVAL;
4604 goto finish;
4605 }
4606 } else {
4607 r = -EPROTO;
4608 goto finish;
4609 }
4610 }
4611
4612 finish:
4613 /* Drop all SysV units */
4614 for (f = 0, t = 0; args[f]; f++) {
4615
4616 if (isempty(args[f]))
4617 continue;
4618
4619 args[t++] = args[f];
4620 }
4621
4622 args[t] = NULL;
4623
4624 #endif
4625 return r;
4626 }
4627
4628 static int mangle_names(char **original_names, char ***mangled_names) {
4629 char **i, **l, **name;
4630
4631 l = new(char*, strv_length(original_names) + 1);
4632 if (!l)
4633 return log_oom();
4634
4635 i = l;
4636 STRV_FOREACH(name, original_names) {
4637
4638 /* When enabling units qualified path names are OK,
4639 * too, hence allow them explicitly. */
4640
4641 if (is_path(*name))
4642 *i = strdup(*name);
4643 else
4644 *i = unit_name_mangle(*name, MANGLE_NOGLOB);
4645
4646 if (!*i) {
4647 strv_free(l);
4648 return log_oom();
4649 }
4650
4651 i++;
4652 }
4653
4654 *i = NULL;
4655 *mangled_names = l;
4656
4657 return 0;
4658 }
4659
4660 static int enable_unit(sd_bus *bus, char **args) {
4661 _cleanup_strv_free_ char **names = NULL;
4662 const char *verb = args[0];
4663 UnitFileChange *changes = NULL;
4664 unsigned n_changes = 0;
4665 int carries_install_info = -1;
4666 int r;
4667
4668 if (!args[1])
4669 return 0;
4670
4671 r = mangle_names(args+1, &names);
4672 if (r < 0)
4673 return r;
4674
4675 r = enable_sysv_units(verb, names);
4676 if (r < 0)
4677 return r;
4678
4679 if (!bus || avoid_bus()) {
4680 if (streq(verb, "enable")) {
4681 r = unit_file_enable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4682 carries_install_info = r;
4683 } else if (streq(verb, "disable"))
4684 r = unit_file_disable(arg_scope, arg_runtime, arg_root, names, &changes, &n_changes);
4685 else if (streq(verb, "reenable")) {
4686 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4687 carries_install_info = r;
4688 } else if (streq(verb, "link"))
4689 r = unit_file_link(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4690 else if (streq(verb, "preset")) {
4691 r = unit_file_preset(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4692 carries_install_info = r;
4693 } else if (streq(verb, "mask"))
4694 r = unit_file_mask(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4695 else if (streq(verb, "unmask"))
4696 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, names, &changes, &n_changes);
4697 else
4698 assert_not_reached("Unknown verb");
4699
4700 if (r < 0) {
4701 log_error("Operation failed: %s", strerror(-r));
4702 goto finish;
4703 }
4704
4705 if (!arg_quiet)
4706 dump_unit_file_changes(changes, n_changes);
4707
4708 r = 0;
4709 } else {
4710 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
4711 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4712 int expect_carries_install_info = false;
4713 bool send_force = true;
4714 const char *method;
4715
4716 if (streq(verb, "enable")) {
4717 method = "EnableUnitFiles";
4718 expect_carries_install_info = true;
4719 } else if (streq(verb, "disable")) {
4720 method = "DisableUnitFiles";
4721 send_force = false;
4722 } else if (streq(verb, "reenable")) {
4723 method = "ReenableUnitFiles";
4724 expect_carries_install_info = true;
4725 } else if (streq(verb, "link"))
4726 method = "LinkUnitFiles";
4727 else if (streq(verb, "preset")) {
4728 method = "PresetUnitFiles";
4729 expect_carries_install_info = true;
4730 } else if (streq(verb, "mask"))
4731 method = "MaskUnitFiles";
4732 else if (streq(verb, "unmask")) {
4733 method = "UnmaskUnitFiles";
4734 send_force = false;
4735 } else
4736 assert_not_reached("Unknown verb");
4737
4738 r = sd_bus_message_new_method_call(
4739 bus,
4740 "org.freedesktop.systemd1",
4741 "/org/freedesktop/systemd1",
4742 "org.freedesktop.systemd1.Manager",
4743 method,
4744 &m);
4745 if (r < 0)
4746 return bus_log_create_error(r);
4747
4748 r = sd_bus_message_append_strv(m, names);
4749 if (r < 0)
4750 return bus_log_create_error(r);
4751
4752 r = sd_bus_message_append(m, "b", arg_runtime);
4753 if (r < 0)
4754 return bus_log_create_error(r);
4755
4756 if (send_force) {
4757 r = sd_bus_message_append(m, "b", arg_force);
4758 if (r < 0)
4759 return bus_log_create_error(r);
4760 }
4761
4762 r = sd_bus_call(bus, m, 0, &error, &reply);
4763 if (r < 0) {
4764 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4765 return r;
4766 }
4767
4768 if (expect_carries_install_info) {
4769 r = sd_bus_message_read(reply, "b", &carries_install_info);
4770 if (r < 0)
4771 return bus_log_parse_error(r);
4772 }
4773
4774 r = deserialize_and_dump_unit_file_changes(reply);
4775 if (r < 0)
4776 return r;
4777
4778 /* Try to reload if enabeld */
4779 if (!arg_no_reload)
4780 r = daemon_reload(bus, args);
4781 else
4782 r = 0;
4783 }
4784
4785 if (carries_install_info == 0)
4786 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
4787 "using systemctl.\n"
4788 "Possible reasons for having this kind of units are:\n"
4789 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4790 " .wants/ or .requires/ directory.\n"
4791 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4792 " a requirement dependency on it.\n"
4793 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4794 " D-Bus, udev, scripted systemctl call, ...).\n");
4795
4796 finish:
4797 unit_file_changes_free(changes, n_changes);
4798
4799 return r;
4800 }
4801
4802 static int unit_is_enabled(sd_bus *bus, char **args) {
4803
4804 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4805 _cleanup_strv_free_ char **names = NULL;
4806 bool enabled;
4807 char **name;
4808 int r;
4809
4810 r = mangle_names(args+1, &names);
4811 if (r < 0)
4812 return r;
4813
4814 r = enable_sysv_units(args[0], names);
4815 if (r < 0)
4816 return r;
4817
4818 enabled = r > 0;
4819
4820 if (!bus || avoid_bus()) {
4821
4822 STRV_FOREACH(name, names) {
4823 UnitFileState state;
4824
4825 state = unit_file_get_state(arg_scope, arg_root, *name);
4826 if (state < 0) {
4827 log_error("Failed to get unit file state for %s: %s", *name, strerror(-state));
4828 return state;
4829 }
4830
4831 if (state == UNIT_FILE_ENABLED ||
4832 state == UNIT_FILE_ENABLED_RUNTIME ||
4833 state == UNIT_FILE_STATIC)
4834 enabled = true;
4835
4836 if (!arg_quiet)
4837 puts(unit_file_state_to_string(state));
4838 }
4839
4840 } else {
4841 STRV_FOREACH(name, names) {
4842 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4843 const char *s;
4844
4845 r = sd_bus_call_method(
4846 bus,
4847 "org.freedesktop.systemd1",
4848 "/org/freedesktop/systemd1",
4849 "org.freedesktop.systemd1.Manager",
4850 "GetUnitFileState",
4851 &error,
4852 &reply,
4853 "s", *name);
4854 if (r < 0) {
4855 log_error("Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
4856 return r;
4857 }
4858
4859 r = sd_bus_message_read(reply, "s", &s);
4860 if (r < 0)
4861 return bus_log_parse_error(r);
4862
4863 if (streq(s, "enabled") ||
4864 streq(s, "enabled-runtime") ||
4865 streq(s, "static"))
4866 enabled = true;
4867
4868 if (!arg_quiet)
4869 puts(s);
4870 }
4871 }
4872
4873 return !enabled;
4874 }
4875
4876 static int systemctl_help(void) {
4877
4878 pager_open_if_enabled();
4879
4880 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4881 "Query or send control commands to the systemd manager.\n\n"
4882 " -h --help Show this help\n"
4883 " --version Show package version\n"
4884 " --system Connect to system manager\n"
4885 " --user Connect to user service manager\n"
4886 " -H --host=[USER@]HOST\n"
4887 " Operate on remote host\n"
4888 " -M --machine=CONTAINER\n"
4889 " Operate on local container\n"
4890 " -t --type=TYPE List only units of a particular type\n"
4891 " --state=STATE List only units with particular LOAD or SUB or ACTIVE state\n"
4892 " -p --property=NAME Show only properties by this name\n"
4893 " -a --all Show all loaded units/properties, including dead/empty\n"
4894 " ones. To list all units installed on the system, use\n"
4895 " the 'list-unit-files' command instead.\n"
4896 " -l --full Don't ellipsize unit names on output\n"
4897 " --reverse Show reverse dependencies with 'list-dependencies'\n"
4898 " --job-mode=MODE Specify how to deal with already queued jobs, when\n"
4899 " queueing a new job\n"
4900 " --show-types When showing sockets, explicitly show their type\n"
4901 " -i --ignore-inhibitors\n"
4902 " When shutting down or sleeping, ignore inhibitors\n"
4903 " --kill-who=WHO Who to send signal to\n"
4904 " -s --signal=SIGNAL Which signal to send\n"
4905 " -q --quiet Suppress output\n"
4906 " --no-block Do not wait until operation finished\n"
4907 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4908 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4909 " configuration\n"
4910 " --no-legend Do not print a legend (column headers and hints)\n"
4911 " --no-pager Do not pipe output into a pager\n"
4912 " --no-ask-password\n"
4913 " Do not ask for system passwords\n"
4914 " --global Enable/disable unit files globally\n"
4915 " --runtime Enable unit files only temporarily until next reboot\n"
4916 " -f --force When enabling unit files, override existing symlinks\n"
4917 " When shutting down, execute action immediately\n"
4918 " --root=PATH Enable unit files in the specified root directory\n"
4919 " -n --lines=INTEGER Number of journal entries to show\n"
4920 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4921 " verbose, export, json, json-pretty, json-sse, cat)\n"
4922 " --plain Print unit dependencies as a list instead of a tree\n\n"
4923 "Unit Commands:\n"
4924 " list-units [PATTERN...] List loaded units\n"
4925 " list-sockets [PATTERN...] List loaded sockets ordered by address\n"
4926 " list-timers [PATTERN...] List loaded timers ordered by next elapse\n"
4927 " start NAME... Start (activate) one or more units\n"
4928 " stop NAME... Stop (deactivate) one or more units\n"
4929 " reload NAME... Reload one or more units\n"
4930 " restart NAME... Start or restart one or more units\n"
4931 " try-restart NAME... Restart one or more units if active\n"
4932 " reload-or-restart NAME... Reload one or more units if possible,\n"
4933 " otherwise start or restart\n"
4934 " reload-or-try-restart NAME... Reload one or more units if possible,\n"
4935 " otherwise restart if active\n"
4936 " isolate NAME Start one unit and stop all others\n"
4937 " kill NAME... Send signal to processes of a unit\n"
4938 " is-active NAME... Check whether units are active\n"
4939 " is-failed NAME... Check whether units are failed\n"
4940 " status [NAME...|PID...] Show runtime status of one or more units\n"
4941 " show [NAME...|JOB...] Show properties of one or more\n"
4942 " units/jobs or the manager\n"
4943 " cat NAME... Show files and drop-ins of one or more units\n"
4944 " set-property NAME ASSIGNMENT... Sets one or more properties of a unit\n"
4945 " help NAME...|PID... Show manual for one or more units\n"
4946 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4947 " units\n"
4948 " list-dependencies [NAME] Recursively show units which are required\n"
4949 " or wanted by this unit or by which this\n"
4950 " unit is required or wanted\n\n"
4951 "Unit File Commands:\n"
4952 " list-unit-files [PATTERN...] List installed unit files\n"
4953 " enable NAME... Enable one or more unit files\n"
4954 " disable NAME... Disable one or more unit files\n"
4955 " reenable NAME... Reenable one or more unit files\n"
4956 " preset NAME... Enable/disable one or more unit files\n"
4957 " based on preset configuration\n"
4958 " is-enabled NAME... Check whether unit files are enabled\n\n"
4959 " mask NAME... Mask one or more units\n"
4960 " unmask NAME... Unmask one or more units\n"
4961 " link PATH... Link one or more units files into\n"
4962 " the search path\n"
4963 " get-default Get the name of the default target\n"
4964 " set-default NAME Set the default target\n\n"
4965 "Job Commands:\n"
4966 " list-jobs [PATTERN...] List jobs\n"
4967 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4968 "Snapshot Commands:\n"
4969 " snapshot [NAME] Create a snapshot\n"
4970 " delete NAME... Remove one or more snapshots\n\n"
4971 "Environment Commands:\n"
4972 " show-environment Dump environment\n"
4973 " set-environment NAME=VALUE... Set one or more environment variables\n"
4974 " unset-environment NAME... Unset one or more environment variables\n\n"
4975 "Manager Lifecycle Commands:\n"
4976 " daemon-reload Reload systemd manager configuration\n"
4977 " daemon-reexec Reexecute systemd manager\n\n"
4978 "System Commands:\n"
4979 " default Enter system default mode\n"
4980 " rescue Enter system rescue mode\n"
4981 " emergency Enter system emergency mode\n"
4982 " halt Shut down and halt the system\n"
4983 " poweroff Shut down and power-off the system\n"
4984 " reboot [ARG] Shut down and reboot the system\n"
4985 " kexec Shut down and reboot the system with kexec\n"
4986 " exit Request user instance exit\n"
4987 " switch-root ROOT [INIT] Change to a different root file system\n"
4988 " suspend Suspend the system\n"
4989 " hibernate Hibernate the system\n"
4990 " hybrid-sleep Hibernate and suspend the system\n",
4991 program_invocation_short_name);
4992
4993 return 0;
4994 }
4995
4996 static int halt_help(void) {
4997
4998 printf("%s [OPTIONS...]%s\n\n"
4999 "%s the system.\n\n"
5000 " --help Show this help\n"
5001 " --halt Halt the machine\n"
5002 " -p --poweroff Switch off the machine\n"
5003 " --reboot Reboot the machine\n"
5004 " -f --force Force immediate halt/power-off/reboot\n"
5005 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
5006 " -d --no-wtmp Don't write wtmp record\n"
5007 " --no-wall Don't send wall message before halt/power-off/reboot\n",
5008 program_invocation_short_name,
5009 arg_action == ACTION_REBOOT ? " [ARG]" : "",
5010 arg_action == ACTION_REBOOT ? "Reboot" :
5011 arg_action == ACTION_POWEROFF ? "Power off" :
5012 "Halt");
5013
5014 return 0;
5015 }
5016
5017 static int shutdown_help(void) {
5018
5019 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
5020 "Shut down the system.\n\n"
5021 " --help Show this help\n"
5022 " -H --halt Halt the machine\n"
5023 " -P --poweroff Power-off the machine\n"
5024 " -r --reboot Reboot the machine\n"
5025 " -h Equivalent to --poweroff, overridden by --halt\n"
5026 " -k Don't halt/power-off/reboot, just send warnings\n"
5027 " --no-wall Don't send wall message before halt/power-off/reboot\n"
5028 " -c Cancel a pending shutdown\n",
5029 program_invocation_short_name);
5030
5031 return 0;
5032 }
5033
5034 static int telinit_help(void) {
5035
5036 printf("%s [OPTIONS...] {COMMAND}\n\n"
5037 "Send control commands to the init daemon.\n\n"
5038 " --help Show this help\n"
5039 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
5040 "Commands:\n"
5041 " 0 Power-off the machine\n"
5042 " 6 Reboot the machine\n"
5043 " 2, 3, 4, 5 Start runlevelX.target unit\n"
5044 " 1, s, S Enter rescue mode\n"
5045 " q, Q Reload init daemon configuration\n"
5046 " u, U Reexecute init daemon\n",
5047 program_invocation_short_name);
5048
5049 return 0;
5050 }
5051
5052 static int runlevel_help(void) {
5053
5054 printf("%s [OPTIONS...]\n\n"
5055 "Prints the previous and current runlevel of the init system.\n\n"
5056 " --help Show this help\n",
5057 program_invocation_short_name);
5058
5059 return 0;
5060 }
5061
5062 static int help_types(void) {
5063 int i;
5064 const char *t;
5065
5066 puts("Available unit types:");
5067 for (i = 0; i < _UNIT_TYPE_MAX; i++) {
5068 t = unit_type_to_string(i);
5069 if (t)
5070 puts(t);
5071 }
5072
5073 return 0;
5074 }
5075
5076 static int systemctl_parse_argv(int argc, char *argv[]) {
5077
5078 enum {
5079 ARG_FAIL = 0x100,
5080 ARG_REVERSE,
5081 ARG_AFTER,
5082 ARG_BEFORE,
5083 ARG_SHOW_TYPES,
5084 ARG_IRREVERSIBLE,
5085 ARG_IGNORE_DEPENDENCIES,
5086 ARG_VERSION,
5087 ARG_USER,
5088 ARG_SYSTEM,
5089 ARG_GLOBAL,
5090 ARG_NO_BLOCK,
5091 ARG_NO_LEGEND,
5092 ARG_NO_PAGER,
5093 ARG_NO_WALL,
5094 ARG_ROOT,
5095 ARG_NO_RELOAD,
5096 ARG_KILL_WHO,
5097 ARG_NO_ASK_PASSWORD,
5098 ARG_FAILED,
5099 ARG_RUNTIME,
5100 ARG_FORCE,
5101 ARG_PLAIN,
5102 ARG_STATE,
5103 ARG_JOB_MODE
5104 };
5105
5106 static const struct option options[] = {
5107 { "help", no_argument, NULL, 'h' },
5108 { "version", no_argument, NULL, ARG_VERSION },
5109 { "type", required_argument, NULL, 't' },
5110 { "property", required_argument, NULL, 'p' },
5111 { "all", no_argument, NULL, 'a' },
5112 { "reverse", no_argument, NULL, ARG_REVERSE },
5113 { "after", no_argument, NULL, ARG_AFTER },
5114 { "before", no_argument, NULL, ARG_BEFORE },
5115 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
5116 { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
5117 { "full", no_argument, NULL, 'l' },
5118 { "job-mode", required_argument, NULL, ARG_JOB_MODE },
5119 { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */
5120 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */
5121 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */
5122 { "ignore-inhibitors", no_argument, NULL, 'i' },
5123 { "user", no_argument, NULL, ARG_USER },
5124 { "system", no_argument, NULL, ARG_SYSTEM },
5125 { "global", no_argument, NULL, ARG_GLOBAL },
5126 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
5127 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
5128 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
5129 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5130 { "quiet", no_argument, NULL, 'q' },
5131 { "root", required_argument, NULL, ARG_ROOT },
5132 { "force", no_argument, NULL, ARG_FORCE },
5133 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
5134 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
5135 { "signal", required_argument, NULL, 's' },
5136 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
5137 { "host", required_argument, NULL, 'H' },
5138 { "machine", required_argument, NULL, 'M' },
5139 { "runtime", no_argument, NULL, ARG_RUNTIME },
5140 { "lines", required_argument, NULL, 'n' },
5141 { "output", required_argument, NULL, 'o' },
5142 { "plain", no_argument, NULL, ARG_PLAIN },
5143 { "state", required_argument, NULL, ARG_STATE },
5144 {}
5145 };
5146
5147 int c;
5148
5149 assert(argc >= 0);
5150 assert(argv);
5151
5152 while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:i", options, NULL)) >= 0) {
5153
5154 switch (c) {
5155
5156 case 'h':
5157 return systemctl_help();
5158
5159 case ARG_VERSION:
5160 puts(PACKAGE_STRING);
5161 puts(SYSTEMD_FEATURES);
5162 return 0;
5163
5164 case 't': {
5165 char *word, *state;
5166 size_t size;
5167
5168 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5169 _cleanup_free_ char *type;
5170
5171 type = strndup(word, size);
5172 if (!type)
5173 return -ENOMEM;
5174
5175 if (streq(type, "help")) {
5176 help_types();
5177 return 0;
5178 }
5179
5180 if (unit_type_from_string(type) >= 0) {
5181 if (strv_push(&arg_types, type))
5182 return log_oom();
5183 type = NULL;
5184 continue;
5185 }
5186
5187 /* It's much nicer to use --state= for
5188 * load states, but let's support this
5189 * in --types= too for compatibility
5190 * with old versions */
5191 if (unit_load_state_from_string(optarg) >= 0) {
5192 if (strv_push(&arg_states, type) < 0)
5193 return log_oom();
5194 type = NULL;
5195 continue;
5196 }
5197
5198 log_error("Unknown unit type or load state '%s'.", type);
5199 log_info("Use -t help to see a list of allowed values.");
5200 return -EINVAL;
5201 }
5202
5203 break;
5204 }
5205
5206 case 'p': {
5207 /* Make sure that if the empty property list
5208 was specified, we won't show any properties. */
5209 if (isempty(optarg) && !arg_properties) {
5210 arg_properties = new0(char*, 1);
5211 if (!arg_properties)
5212 return log_oom();
5213 } else {
5214 char *word, *state;
5215 size_t size;
5216
5217 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5218 char *prop;
5219
5220 prop = strndup(word, size);
5221 if (!prop)
5222 return log_oom();
5223
5224 if (strv_push(&arg_properties, prop) < 0) {
5225 free(prop);
5226 return log_oom();
5227 }
5228 }
5229 }
5230
5231 /* If the user asked for a particular
5232 * property, show it to him, even if it is
5233 * empty. */
5234 arg_all = true;
5235
5236 break;
5237 }
5238
5239 case 'a':
5240 arg_all = true;
5241 break;
5242
5243 case ARG_REVERSE:
5244 arg_dependency = DEPENDENCY_REVERSE;
5245 break;
5246
5247 case ARG_AFTER:
5248 arg_dependency = DEPENDENCY_AFTER;
5249 break;
5250
5251 case ARG_BEFORE:
5252 arg_dependency = DEPENDENCY_BEFORE;
5253 break;
5254
5255 case ARG_SHOW_TYPES:
5256 arg_show_types = true;
5257 break;
5258
5259 case ARG_JOB_MODE:
5260 arg_job_mode = optarg;
5261 break;
5262
5263 case ARG_FAIL:
5264 arg_job_mode = "fail";
5265 break;
5266
5267 case ARG_IRREVERSIBLE:
5268 arg_job_mode = "replace-irreversibly";
5269 break;
5270
5271 case ARG_IGNORE_DEPENDENCIES:
5272 arg_job_mode = "ignore-dependencies";
5273 break;
5274
5275 case ARG_USER:
5276 arg_scope = UNIT_FILE_USER;
5277 break;
5278
5279 case ARG_SYSTEM:
5280 arg_scope = UNIT_FILE_SYSTEM;
5281 break;
5282
5283 case ARG_GLOBAL:
5284 arg_scope = UNIT_FILE_GLOBAL;
5285 break;
5286
5287 case ARG_NO_BLOCK:
5288 arg_no_block = true;
5289 break;
5290
5291 case ARG_NO_LEGEND:
5292 arg_no_legend = true;
5293 break;
5294
5295 case ARG_NO_PAGER:
5296 arg_no_pager = true;
5297 break;
5298
5299 case ARG_NO_WALL:
5300 arg_no_wall = true;
5301 break;
5302
5303 case ARG_ROOT:
5304 arg_root = optarg;
5305 break;
5306
5307 case 'l':
5308 arg_full = true;
5309 break;
5310
5311 case ARG_FAILED:
5312 if (strv_extend(&arg_states, "failed") < 0)
5313 return log_oom();
5314
5315 break;
5316
5317 case 'q':
5318 arg_quiet = true;
5319 break;
5320
5321 case ARG_FORCE:
5322 arg_force ++;
5323 break;
5324
5325 case 'f':
5326 arg_force ++;
5327 break;
5328
5329 case ARG_NO_RELOAD:
5330 arg_no_reload = true;
5331 break;
5332
5333 case ARG_KILL_WHO:
5334 arg_kill_who = optarg;
5335 break;
5336
5337 case 's':
5338 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
5339 log_error("Failed to parse signal string %s.", optarg);
5340 return -EINVAL;
5341 }
5342 break;
5343
5344 case ARG_NO_ASK_PASSWORD:
5345 arg_ask_password = false;
5346 break;
5347
5348 case 'H':
5349 arg_transport = BUS_TRANSPORT_REMOTE;
5350 arg_host = optarg;
5351 break;
5352
5353 case 'M':
5354 arg_transport = BUS_TRANSPORT_CONTAINER;
5355 arg_host = optarg;
5356 break;
5357
5358 case ARG_RUNTIME:
5359 arg_runtime = true;
5360 break;
5361
5362 case 'n':
5363 if (safe_atou(optarg, &arg_lines) < 0) {
5364 log_error("Failed to parse lines '%s'", optarg);
5365 return -EINVAL;
5366 }
5367 break;
5368
5369 case 'o':
5370 arg_output = output_mode_from_string(optarg);
5371 if (arg_output < 0) {
5372 log_error("Unknown output '%s'.", optarg);
5373 return -EINVAL;
5374 }
5375 break;
5376
5377 case 'i':
5378 arg_ignore_inhibitors = true;
5379 break;
5380
5381 case ARG_PLAIN:
5382 arg_plain = true;
5383 break;
5384
5385 case ARG_STATE: {
5386 char *word, *state;
5387 size_t size;
5388
5389 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5390 char *s;
5391
5392 s = strndup(word, size);
5393 if (!s)
5394 return log_oom();
5395
5396 if (strv_push(&arg_states, s) < 0) {
5397 free(s);
5398 return log_oom();
5399 }
5400 }
5401 break;
5402 }
5403
5404 case '?':
5405 return -EINVAL;
5406
5407 default:
5408 assert_not_reached("Unhandled option");
5409 }
5410 }
5411
5412 if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
5413 log_error("Cannot access user instance remotely.");
5414 return -EINVAL;
5415 }
5416
5417 return 1;
5418 }
5419
5420 static int halt_parse_argv(int argc, char *argv[]) {
5421
5422 enum {
5423 ARG_HELP = 0x100,
5424 ARG_HALT,
5425 ARG_REBOOT,
5426 ARG_NO_WALL
5427 };
5428
5429 static const struct option options[] = {
5430 { "help", no_argument, NULL, ARG_HELP },
5431 { "halt", no_argument, NULL, ARG_HALT },
5432 { "poweroff", no_argument, NULL, 'p' },
5433 { "reboot", no_argument, NULL, ARG_REBOOT },
5434 { "force", no_argument, NULL, 'f' },
5435 { "wtmp-only", no_argument, NULL, 'w' },
5436 { "no-wtmp", no_argument, NULL, 'd' },
5437 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5438 {}
5439 };
5440
5441 int c, r, runlevel;
5442
5443 assert(argc >= 0);
5444 assert(argv);
5445
5446 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
5447 if (runlevel == '0' || runlevel == '6')
5448 arg_force = 2;
5449
5450 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
5451 switch (c) {
5452
5453 case ARG_HELP:
5454 return halt_help();
5455
5456 case ARG_HALT:
5457 arg_action = ACTION_HALT;
5458 break;
5459
5460 case 'p':
5461 if (arg_action != ACTION_REBOOT)
5462 arg_action = ACTION_POWEROFF;
5463 break;
5464
5465 case ARG_REBOOT:
5466 arg_action = ACTION_REBOOT;
5467 break;
5468
5469 case 'f':
5470 arg_force = 2;
5471 break;
5472
5473 case 'w':
5474 arg_dry = true;
5475 break;
5476
5477 case 'd':
5478 arg_no_wtmp = true;
5479 break;
5480
5481 case ARG_NO_WALL:
5482 arg_no_wall = true;
5483 break;
5484
5485 case 'i':
5486 case 'h':
5487 case 'n':
5488 /* Compatibility nops */
5489 break;
5490
5491 case '?':
5492 return -EINVAL;
5493
5494 default:
5495 assert_not_reached("Unhandled option");
5496 }
5497 }
5498
5499 if (arg_action == ACTION_REBOOT && argc == optind + 1) {
5500 r = write_string_file(REBOOT_PARAM_FILE, argv[optind]);
5501 if (r < 0) {
5502 log_error("Failed to write reboot param to "
5503 REBOOT_PARAM_FILE": %s", strerror(-r));
5504 return r;
5505 }
5506 } else if (optind < argc) {
5507 log_error("Too many arguments.");
5508 return -EINVAL;
5509 }
5510
5511 return 1;
5512 }
5513
5514 static int parse_time_spec(const char *t, usec_t *_u) {
5515 assert(t);
5516 assert(_u);
5517
5518 if (streq(t, "now"))
5519 *_u = 0;
5520 else if (!strchr(t, ':')) {
5521 uint64_t u;
5522
5523 if (safe_atou64(t, &u) < 0)
5524 return -EINVAL;
5525
5526 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
5527 } else {
5528 char *e = NULL;
5529 long hour, minute;
5530 struct tm tm = {};
5531 time_t s;
5532 usec_t n;
5533
5534 errno = 0;
5535 hour = strtol(t, &e, 10);
5536 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
5537 return -EINVAL;
5538
5539 minute = strtol(e+1, &e, 10);
5540 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
5541 return -EINVAL;
5542
5543 n = now(CLOCK_REALTIME);
5544 s = (time_t) (n / USEC_PER_SEC);
5545
5546 assert_se(localtime_r(&s, &tm));
5547
5548 tm.tm_hour = (int) hour;
5549 tm.tm_min = (int) minute;
5550 tm.tm_sec = 0;
5551
5552 assert_se(s = mktime(&tm));
5553
5554 *_u = (usec_t) s * USEC_PER_SEC;
5555
5556 while (*_u <= n)
5557 *_u += USEC_PER_DAY;
5558 }
5559
5560 return 0;
5561 }
5562
5563 static int shutdown_parse_argv(int argc, char *argv[]) {
5564
5565 enum {
5566 ARG_HELP = 0x100,
5567 ARG_NO_WALL
5568 };
5569
5570 static const struct option options[] = {
5571 { "help", no_argument, NULL, ARG_HELP },
5572 { "halt", no_argument, NULL, 'H' },
5573 { "poweroff", no_argument, NULL, 'P' },
5574 { "reboot", no_argument, NULL, 'r' },
5575 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
5576 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5577 {}
5578 };
5579
5580 int c, r;
5581
5582 assert(argc >= 0);
5583 assert(argv);
5584
5585 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
5586 switch (c) {
5587
5588 case ARG_HELP:
5589 return shutdown_help();
5590
5591 case 'H':
5592 arg_action = ACTION_HALT;
5593 break;
5594
5595 case 'P':
5596 arg_action = ACTION_POWEROFF;
5597 break;
5598
5599 case 'r':
5600 if (kexec_loaded())
5601 arg_action = ACTION_KEXEC;
5602 else
5603 arg_action = ACTION_REBOOT;
5604 break;
5605
5606 case 'K':
5607 arg_action = ACTION_KEXEC;
5608 break;
5609
5610 case 'h':
5611 if (arg_action != ACTION_HALT)
5612 arg_action = ACTION_POWEROFF;
5613 break;
5614
5615 case 'k':
5616 arg_dry = true;
5617 break;
5618
5619 case ARG_NO_WALL:
5620 arg_no_wall = true;
5621 break;
5622
5623 case 't':
5624 case 'a':
5625 /* Compatibility nops */
5626 break;
5627
5628 case 'c':
5629 arg_action = ACTION_CANCEL_SHUTDOWN;
5630 break;
5631
5632 case '?':
5633 return -EINVAL;
5634
5635 default:
5636 assert_not_reached("Unhandled option");
5637 }
5638 }
5639
5640 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
5641 r = parse_time_spec(argv[optind], &arg_when);
5642 if (r < 0) {
5643 log_error("Failed to parse time specification: %s", argv[optind]);
5644 return r;
5645 }
5646 } else
5647 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5648
5649 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
5650 /* No time argument for shutdown cancel */
5651 arg_wall = argv + optind;
5652 else if (argc > optind + 1)
5653 /* We skip the time argument */
5654 arg_wall = argv + optind + 1;
5655
5656 optind = argc;
5657
5658 return 1;
5659 }
5660
5661 static int telinit_parse_argv(int argc, char *argv[]) {
5662
5663 enum {
5664 ARG_HELP = 0x100,
5665 ARG_NO_WALL
5666 };
5667
5668 static const struct option options[] = {
5669 { "help", no_argument, NULL, ARG_HELP },
5670 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5671 {}
5672 };
5673
5674 static const struct {
5675 char from;
5676 enum action to;
5677 } table[] = {
5678 { '0', ACTION_POWEROFF },
5679 { '6', ACTION_REBOOT },
5680 { '1', ACTION_RESCUE },
5681 { '2', ACTION_RUNLEVEL2 },
5682 { '3', ACTION_RUNLEVEL3 },
5683 { '4', ACTION_RUNLEVEL4 },
5684 { '5', ACTION_RUNLEVEL5 },
5685 { 's', ACTION_RESCUE },
5686 { 'S', ACTION_RESCUE },
5687 { 'q', ACTION_RELOAD },
5688 { 'Q', ACTION_RELOAD },
5689 { 'u', ACTION_REEXEC },
5690 { 'U', ACTION_REEXEC }
5691 };
5692
5693 unsigned i;
5694 int c;
5695
5696 assert(argc >= 0);
5697 assert(argv);
5698
5699 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5700 switch (c) {
5701
5702 case ARG_HELP:
5703 return telinit_help();
5704
5705 case ARG_NO_WALL:
5706 arg_no_wall = true;
5707 break;
5708
5709 case '?':
5710 return -EINVAL;
5711
5712 default:
5713 assert_not_reached("Unhandled option");
5714 }
5715 }
5716
5717 if (optind >= argc) {
5718 telinit_help();
5719 return -EINVAL;
5720 }
5721
5722 if (optind + 1 < argc) {
5723 log_error("Too many arguments.");
5724 return -EINVAL;
5725 }
5726
5727 if (strlen(argv[optind]) != 1) {
5728 log_error("Expected single character argument.");
5729 return -EINVAL;
5730 }
5731
5732 for (i = 0; i < ELEMENTSOF(table); i++)
5733 if (table[i].from == argv[optind][0])
5734 break;
5735
5736 if (i >= ELEMENTSOF(table)) {
5737 log_error("Unknown command '%s'.", argv[optind]);
5738 return -EINVAL;
5739 }
5740
5741 arg_action = table[i].to;
5742
5743 optind ++;
5744
5745 return 1;
5746 }
5747
5748 static int runlevel_parse_argv(int argc, char *argv[]) {
5749
5750 enum {
5751 ARG_HELP = 0x100,
5752 };
5753
5754 static const struct option options[] = {
5755 { "help", no_argument, NULL, ARG_HELP },
5756 {}
5757 };
5758
5759 int c;
5760
5761 assert(argc >= 0);
5762 assert(argv);
5763
5764 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5765 switch (c) {
5766
5767 case ARG_HELP:
5768 return runlevel_help();
5769 return 0;
5770
5771 case '?':
5772 return -EINVAL;
5773
5774 default:
5775 assert_not_reached("Unhandled option");
5776 }
5777 }
5778
5779 if (optind < argc) {
5780 log_error("Too many arguments.");
5781 return -EINVAL;
5782 }
5783
5784 return 1;
5785 }
5786
5787 static int parse_argv(int argc, char *argv[]) {
5788 assert(argc >= 0);
5789 assert(argv);
5790
5791 if (program_invocation_short_name) {
5792
5793 if (strstr(program_invocation_short_name, "halt")) {
5794 arg_action = ACTION_HALT;
5795 return halt_parse_argv(argc, argv);
5796 } else if (strstr(program_invocation_short_name, "poweroff")) {
5797 arg_action = ACTION_POWEROFF;
5798 return halt_parse_argv(argc, argv);
5799 } else if (strstr(program_invocation_short_name, "reboot")) {
5800 if (kexec_loaded())
5801 arg_action = ACTION_KEXEC;
5802 else
5803 arg_action = ACTION_REBOOT;
5804 return halt_parse_argv(argc, argv);
5805 } else if (strstr(program_invocation_short_name, "shutdown")) {
5806 arg_action = ACTION_POWEROFF;
5807 return shutdown_parse_argv(argc, argv);
5808 } else if (strstr(program_invocation_short_name, "init")) {
5809
5810 if (sd_booted() > 0) {
5811 arg_action = _ACTION_INVALID;
5812 return telinit_parse_argv(argc, argv);
5813 } else {
5814 /* Hmm, so some other init system is
5815 * running, we need to forward this
5816 * request to it. For now we simply
5817 * guess that it is Upstart. */
5818
5819 execv(TELINIT, argv);
5820
5821 log_error("Couldn't find an alternative telinit implementation to spawn.");
5822 return -EIO;
5823 }
5824
5825 } else if (strstr(program_invocation_short_name, "runlevel")) {
5826 arg_action = ACTION_RUNLEVEL;
5827 return runlevel_parse_argv(argc, argv);
5828 }
5829 }
5830
5831 arg_action = ACTION_SYSTEMCTL;
5832 return systemctl_parse_argv(argc, argv);
5833 }
5834
5835 _pure_ static int action_to_runlevel(void) {
5836
5837 static const char table[_ACTION_MAX] = {
5838 [ACTION_HALT] = '0',
5839 [ACTION_POWEROFF] = '0',
5840 [ACTION_REBOOT] = '6',
5841 [ACTION_RUNLEVEL2] = '2',
5842 [ACTION_RUNLEVEL3] = '3',
5843 [ACTION_RUNLEVEL4] = '4',
5844 [ACTION_RUNLEVEL5] = '5',
5845 [ACTION_RESCUE] = '1'
5846 };
5847
5848 assert(arg_action < _ACTION_MAX);
5849
5850 return table[arg_action];
5851 }
5852
5853 static int talk_initctl(void) {
5854
5855 struct init_request request = {
5856 .magic = INIT_MAGIC,
5857 .sleeptime = 0,
5858 .cmd = INIT_CMD_RUNLVL
5859 };
5860
5861 _cleanup_close_ int fd = -1;
5862 char rl;
5863 int r;
5864
5865 rl = action_to_runlevel();
5866 if (!rl)
5867 return 0;
5868
5869 request.runlevel = rl;
5870
5871 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5872 if (fd < 0) {
5873 if (errno == ENOENT)
5874 return 0;
5875
5876 log_error("Failed to open "INIT_FIFO": %m");
5877 return -errno;
5878 }
5879
5880 errno = 0;
5881 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5882 if (r) {
5883 log_error("Failed to write to "INIT_FIFO": %m");
5884 return errno > 0 ? -errno : -EIO;
5885 }
5886
5887 return 1;
5888 }
5889
5890 static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
5891
5892 static const struct {
5893 const char* verb;
5894 const enum {
5895 MORE,
5896 LESS,
5897 EQUAL
5898 } argc_cmp;
5899 const int argc;
5900 int (* const dispatch)(sd_bus *bus, char **args);
5901 const enum {
5902 NOBUS = 1,
5903 FORCE,
5904 } bus;
5905 } verbs[] = {
5906 { "list-units", MORE, 0, list_units },
5907 { "list-unit-files", MORE, 1, list_unit_files, NOBUS },
5908 { "list-sockets", MORE, 1, list_sockets },
5909 { "list-timers", MORE, 1, list_timers },
5910 { "list-jobs", MORE, 1, list_jobs },
5911 { "clear-jobs", EQUAL, 1, daemon_reload },
5912 { "cancel", MORE, 2, cancel_job },
5913 { "start", MORE, 2, start_unit },
5914 { "stop", MORE, 2, start_unit },
5915 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5916 { "reload", MORE, 2, start_unit },
5917 { "restart", MORE, 2, start_unit },
5918 { "try-restart", MORE, 2, start_unit },
5919 { "reload-or-restart", MORE, 2, start_unit },
5920 { "reload-or-try-restart", MORE, 2, start_unit },
5921 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5922 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5923 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5924 { "isolate", EQUAL, 2, start_unit },
5925 { "kill", MORE, 2, kill_unit },
5926 { "is-active", MORE, 2, check_unit_active },
5927 { "check", MORE, 2, check_unit_active },
5928 { "is-failed", MORE, 2, check_unit_failed },
5929 { "show", MORE, 1, show },
5930 { "cat", MORE, 2, cat },
5931 { "status", MORE, 1, show },
5932 { "help", MORE, 2, show },
5933 { "snapshot", LESS, 2, snapshot },
5934 { "delete", MORE, 2, delete_snapshot },
5935 { "daemon-reload", EQUAL, 1, daemon_reload },
5936 { "daemon-reexec", EQUAL, 1, daemon_reload },
5937 { "show-environment", EQUAL, 1, show_environment },
5938 { "set-environment", MORE, 2, set_environment },
5939 { "unset-environment", MORE, 2, set_environment },
5940 { "halt", EQUAL, 1, start_special, FORCE },
5941 { "poweroff", EQUAL, 1, start_special, FORCE },
5942 { "reboot", EQUAL, 1, start_special, FORCE },
5943 { "kexec", EQUAL, 1, start_special },
5944 { "suspend", EQUAL, 1, start_special },
5945 { "hibernate", EQUAL, 1, start_special },
5946 { "hybrid-sleep", EQUAL, 1, start_special },
5947 { "default", EQUAL, 1, start_special },
5948 { "rescue", EQUAL, 1, start_special },
5949 { "emergency", EQUAL, 1, start_special },
5950 { "exit", EQUAL, 1, start_special },
5951 { "reset-failed", MORE, 1, reset_failed },
5952 { "enable", MORE, 2, enable_unit, NOBUS },
5953 { "disable", MORE, 2, enable_unit, NOBUS },
5954 { "is-enabled", MORE, 2, unit_is_enabled, NOBUS },
5955 { "reenable", MORE, 2, enable_unit, NOBUS },
5956 { "preset", MORE, 2, enable_unit, NOBUS },
5957 { "mask", MORE, 2, enable_unit, NOBUS },
5958 { "unmask", MORE, 2, enable_unit, NOBUS },
5959 { "link", MORE, 2, enable_unit, NOBUS },
5960 { "switch-root", MORE, 2, switch_root },
5961 { "list-dependencies", LESS, 2, list_dependencies },
5962 { "set-default", EQUAL, 2, set_default, NOBUS },
5963 { "get-default", EQUAL, 1, get_default, NOBUS },
5964 { "set-property", MORE, 3, set_property },
5965 {}
5966 }, *verb = verbs;
5967
5968 int left;
5969
5970 assert(argc >= 0);
5971 assert(argv);
5972
5973 left = argc - optind;
5974
5975 /* Special rule: no arguments (left == 0) means "list-units" */
5976 if (left > 0) {
5977 if (streq(argv[optind], "help") && !argv[optind+1]) {
5978 log_error("This command expects one or more "
5979 "unit names. Did you mean --help?");
5980 return -EINVAL;
5981 }
5982
5983 for (; verb->verb; verb++)
5984 if (streq(argv[optind], verb->verb))
5985 goto found;
5986
5987 log_error("Unknown operation '%s'.", argv[optind]);
5988 return -EINVAL;
5989 }
5990 found:
5991
5992 switch (verb->argc_cmp) {
5993
5994 case EQUAL:
5995 if (left != verb->argc) {
5996 log_error("Invalid number of arguments.");
5997 return -EINVAL;
5998 }
5999
6000 break;
6001
6002 case MORE:
6003 if (left < verb->argc) {
6004 log_error("Too few arguments.");
6005 return -EINVAL;
6006 }
6007
6008 break;
6009
6010 case LESS:
6011 if (left > verb->argc) {
6012 log_error("Too many arguments.");
6013 return -EINVAL;
6014 }
6015
6016 break;
6017
6018 default:
6019 assert_not_reached("Unknown comparison operator.");
6020 }
6021
6022 /* Require a bus connection for all operations but
6023 * enable/disable */
6024 if (verb->bus == NOBUS) {
6025 if (!bus && !avoid_bus()) {
6026 log_error("Failed to get D-Bus connection: %s", strerror(-bus_error));
6027 return -EIO;
6028 }
6029
6030 } else {
6031 if (running_in_chroot() > 0) {
6032 log_info("Running in chroot, ignoring request.");
6033 return 0;
6034 }
6035
6036 if ((verb->bus != FORCE || arg_force <= 0) && !bus) {
6037 log_error("Failed to get D-Bus connection: %s", strerror(-bus_error));
6038 return -EIO;
6039 }
6040 }
6041
6042 return verb->dispatch(bus, argv + optind);
6043 }
6044
6045 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
6046
6047 struct sd_shutdown_command c = {
6048 .usec = t,
6049 .mode = mode,
6050 .dry_run = dry_run,
6051 .warn_wall = warn,
6052 };
6053
6054 union sockaddr_union sockaddr = {
6055 .un.sun_family = AF_UNIX,
6056 .un.sun_path = "/run/systemd/shutdownd",
6057 };
6058
6059 struct iovec iovec[2] = {{
6060 .iov_base = (char*) &c,
6061 .iov_len = offsetof(struct sd_shutdown_command, wall_message),
6062 }};
6063
6064 struct msghdr msghdr = {
6065 .msg_name = &sockaddr,
6066 .msg_namelen = offsetof(struct sockaddr_un, sun_path)
6067 + sizeof("/run/systemd/shutdownd") - 1,
6068 .msg_iov = iovec,
6069 .msg_iovlen = 1,
6070 };
6071
6072 _cleanup_close_ int fd;
6073
6074 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
6075 if (fd < 0)
6076 return -errno;
6077
6078 if (!isempty(message)) {
6079 iovec[1].iov_base = (char*) message;
6080 iovec[1].iov_len = strlen(message);
6081 msghdr.msg_iovlen++;
6082 }
6083
6084 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
6085 return -errno;
6086
6087 return 0;
6088 }
6089
6090 static int reload_with_fallback(sd_bus *bus) {
6091
6092 if (bus) {
6093 /* First, try systemd via D-Bus. */
6094 if (daemon_reload(bus, NULL) >= 0)
6095 return 0;
6096 }
6097
6098 /* Nothing else worked, so let's try signals */
6099 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
6100
6101 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
6102 log_error("kill() failed: %m");
6103 return -errno;
6104 }
6105
6106 return 0;
6107 }
6108
6109 static int start_with_fallback(sd_bus *bus) {
6110
6111 if (bus) {
6112 /* First, try systemd via D-Bus. */
6113 if (start_unit(bus, NULL) >= 0)
6114 goto done;
6115 }
6116
6117 /* Nothing else worked, so let's try
6118 * /dev/initctl */
6119 if (talk_initctl() > 0)
6120 goto done;
6121
6122 log_error("Failed to talk to init daemon.");
6123 return -EIO;
6124
6125 done:
6126 warn_wall(arg_action);
6127 return 0;
6128 }
6129
6130 static int halt_now(enum action a) {
6131
6132 /* Make sure C-A-D is handled by the kernel from this
6133 * point on... */
6134 reboot(RB_ENABLE_CAD);
6135
6136 switch (a) {
6137
6138 case ACTION_HALT:
6139 log_info("Halting.");
6140 reboot(RB_HALT_SYSTEM);
6141 return -errno;
6142
6143 case ACTION_POWEROFF:
6144 log_info("Powering off.");
6145 reboot(RB_POWER_OFF);
6146 return -errno;
6147
6148 case ACTION_REBOOT: {
6149 _cleanup_free_ char *param = NULL;
6150
6151 if (read_one_line_file(REBOOT_PARAM_FILE, &param) >= 0) {
6152 log_info("Rebooting with argument '%s'.", param);
6153 syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
6154 LINUX_REBOOT_CMD_RESTART2, param);
6155 }
6156
6157 log_info("Rebooting.");
6158 reboot(RB_AUTOBOOT);
6159 return -errno;
6160 }
6161
6162 default:
6163 assert_not_reached("Unknown action.");
6164 }
6165 }
6166
6167 static int halt_main(sd_bus *bus) {
6168 int r;
6169
6170 r = check_inhibitors(bus, arg_action);
6171 if (r < 0)
6172 return r;
6173
6174 if (geteuid() != 0) {
6175 /* Try logind if we are a normal user and no special
6176 * mode applies. Maybe PolicyKit allows us to shutdown
6177 * the machine. */
6178
6179 if (arg_when <= 0 &&
6180 !arg_dry &&
6181 arg_force <= 0 &&
6182 (arg_action == ACTION_POWEROFF ||
6183 arg_action == ACTION_REBOOT)) {
6184 r = reboot_with_logind(bus, arg_action);
6185 if (r >= 0)
6186 return r;
6187 }
6188
6189 log_error("Must be root.");
6190 return -EPERM;
6191 }
6192
6193 if (arg_when > 0) {
6194 _cleanup_free_ char *m;
6195
6196 m = strv_join(arg_wall, " ");
6197 if (!m)
6198 return log_oom();
6199
6200 r = send_shutdownd(arg_when,
6201 arg_action == ACTION_HALT ? 'H' :
6202 arg_action == ACTION_POWEROFF ? 'P' :
6203 arg_action == ACTION_KEXEC ? 'K' :
6204 'r',
6205 arg_dry,
6206 !arg_no_wall,
6207 m);
6208
6209 if (r < 0)
6210 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
6211 else {
6212 char date[FORMAT_TIMESTAMP_MAX];
6213
6214 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
6215 format_timestamp(date, sizeof(date), arg_when));
6216 return 0;
6217 }
6218 }
6219
6220 if (!arg_dry && !arg_force)
6221 return start_with_fallback(bus);
6222
6223 if (!arg_no_wtmp) {
6224 if (sd_booted() > 0)
6225 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
6226 else {
6227 r = utmp_put_shutdown();
6228 if (r < 0)
6229 log_warning("Failed to write utmp record: %s", strerror(-r));
6230 }
6231 }
6232
6233 if (arg_dry)
6234 return 0;
6235
6236 r = halt_now(arg_action);
6237 log_error("Failed to reboot: %s", strerror(-r));
6238
6239 return r;
6240 }
6241
6242 static int runlevel_main(void) {
6243 int r, runlevel, previous;
6244
6245 r = utmp_get_runlevel(&runlevel, &previous);
6246 if (r < 0) {
6247 puts("unknown");
6248 return r;
6249 }
6250
6251 printf("%c %c\n",
6252 previous <= 0 ? 'N' : previous,
6253 runlevel <= 0 ? 'N' : runlevel);
6254
6255 return 0;
6256 }
6257
6258 int main(int argc, char*argv[]) {
6259 _cleanup_bus_unref_ sd_bus *bus = NULL;
6260 int r;
6261
6262 setlocale(LC_ALL, "");
6263 log_parse_environment();
6264 log_open();
6265
6266 /* Explicitly not on_tty() to avoid setting cached value.
6267 * This becomes relevant for piping output which might be
6268 * ellipsized. */
6269 original_stdout_is_tty = isatty(STDOUT_FILENO);
6270
6271 r = parse_argv(argc, argv);
6272 if (r <= 0)
6273 goto finish;
6274
6275 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
6276 * let's shortcut this */
6277 if (arg_action == ACTION_RUNLEVEL) {
6278 r = runlevel_main();
6279 goto finish;
6280 }
6281
6282 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
6283 log_info("Running in chroot, ignoring request.");
6284 r = 0;
6285 goto finish;
6286 }
6287
6288 if (!avoid_bus())
6289 r = bus_open_transport_systemd(arg_transport, arg_host, arg_scope != UNIT_FILE_SYSTEM, &bus);
6290
6291 /* systemctl_main() will print an error message for the bus
6292 * connection, but only if it needs to */
6293
6294 switch (arg_action) {
6295
6296 case ACTION_SYSTEMCTL:
6297 r = systemctl_main(bus, argc, argv, r);
6298 break;
6299
6300 case ACTION_HALT:
6301 case ACTION_POWEROFF:
6302 case ACTION_REBOOT:
6303 case ACTION_KEXEC:
6304 r = halt_main(bus);
6305 break;
6306
6307 case ACTION_RUNLEVEL2:
6308 case ACTION_RUNLEVEL3:
6309 case ACTION_RUNLEVEL4:
6310 case ACTION_RUNLEVEL5:
6311 case ACTION_RESCUE:
6312 case ACTION_EMERGENCY:
6313 case ACTION_DEFAULT:
6314 r = start_with_fallback(bus);
6315 break;
6316
6317 case ACTION_RELOAD:
6318 case ACTION_REEXEC:
6319 r = reload_with_fallback(bus);
6320 break;
6321
6322 case ACTION_CANCEL_SHUTDOWN: {
6323 _cleanup_free_ char *m = NULL;
6324
6325 if (arg_wall) {
6326 m = strv_join(arg_wall, " ");
6327 if (!m) {
6328 r = log_oom();
6329 goto finish;
6330 }
6331 }
6332
6333 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
6334 if (r < 0)
6335 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
6336 break;
6337 }
6338
6339 case ACTION_RUNLEVEL:
6340 case _ACTION_INVALID:
6341 default:
6342 assert_not_reached("Unknown action");
6343 }
6344
6345 finish:
6346 pager_close();
6347 ask_password_agent_close();
6348 polkit_agent_close();
6349
6350 strv_free(arg_types);
6351 strv_free(arg_states);
6352 strv_free(arg_properties);
6353
6354 return r < 0 ? EXIT_FAILURE : r;
6355 }
Unnamed repository; edit this file 'description' to name the repository.