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systemctl: show a colored red dot in "status" output indicating the state of a unit
[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 "build.h"
62 #include "unit-name.h"
63 #include "pager.h"
64 #include "spawn-ask-password-agent.h"
65 #include "spawn-polkit-agent.h"
66 #include "install.h"
67 #include "logs-show.h"
68 #include "socket-util.h"
69 #include "fileio.h"
70 #include "env-util.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 usec_t calc_next_elapse(dual_timestamp *nw, dual_timestamp *next) {
912 usec_t next_elapse;
913
914 assert(nw);
915 assert(next);
916
917 if (next->monotonic != (usec_t) -1 && next->monotonic > 0) {
918 usec_t converted;
919
920 if (next->monotonic > nw->monotonic)
921 converted = nw->realtime + (next->monotonic - nw->monotonic);
922 else
923 converted = nw->realtime - (nw->monotonic - next->monotonic);
924
925 if (next->realtime != (usec_t) -1 && next->realtime > 0)
926 next_elapse = MIN(converted, next->realtime);
927 else
928 next_elapse = converted;
929
930 } else
931 next_elapse = next->realtime;
932
933 return next_elapse;
934 }
935
936 static int list_timers(sd_bus *bus, char **args) {
937
938 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
939 _cleanup_free_ struct timer_info *timer_infos = NULL;
940 _cleanup_free_ UnitInfo *unit_infos = NULL;
941 struct timer_info *t;
942 const UnitInfo *u;
943 size_t size = 0;
944 int n, c = 0;
945 dual_timestamp nw;
946 int r = 0;
947
948 pager_open_if_enabled();
949
950 n = get_unit_list(bus, &reply, &unit_infos, strv_skip_first(args));
951 if (n < 0)
952 return n;
953
954 dual_timestamp_get(&nw);
955
956 for (u = unit_infos; u < unit_infos + n; u++) {
957 _cleanup_strv_free_ char **triggered = NULL;
958 dual_timestamp next = {};
959 usec_t m;
960
961 if (!endswith(u->id, ".timer"))
962 continue;
963
964 r = get_triggered_units(bus, u->unit_path, &triggered);
965 if (r < 0)
966 goto cleanup;
967
968 r = get_next_elapse(bus, u->unit_path, &next);
969 if (r < 0)
970 goto cleanup;
971
972 if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
973 r = log_oom();
974 goto cleanup;
975 }
976
977 m = calc_next_elapse(&nw, &next);
978
979 timer_infos[c++] = (struct timer_info) {
980 .id = u->id,
981 .next_elapse = m,
982 .triggered = triggered,
983 };
984
985 triggered = NULL; /* avoid cleanup */
986 }
987
988 qsort_safe(timer_infos, c, sizeof(struct timer_info),
989 (__compar_fn_t) timer_info_compare);
990
991 output_timers_list(timer_infos, c);
992
993 cleanup:
994 for (t = timer_infos; t < timer_infos + c; t++)
995 strv_free(t->triggered);
996
997 return r;
998 }
999
1000 static int compare_unit_file_list(const void *a, const void *b) {
1001 const char *d1, *d2;
1002 const UnitFileList *u = a, *v = b;
1003
1004 d1 = strrchr(u->path, '.');
1005 d2 = strrchr(v->path, '.');
1006
1007 if (d1 && d2) {
1008 int r;
1009
1010 r = strcasecmp(d1, d2);
1011 if (r != 0)
1012 return r;
1013 }
1014
1015 return strcasecmp(basename(u->path), basename(v->path));
1016 }
1017
1018 static bool output_show_unit_file(const UnitFileList *u, char **patterns) {
1019 const char *dot;
1020
1021 if (!strv_isempty(patterns)) {
1022 char **pattern;
1023
1024 STRV_FOREACH(pattern, patterns)
1025 if (fnmatch(*pattern, basename(u->path), FNM_NOESCAPE) == 0)
1026 return true;
1027 return false;
1028 }
1029
1030 return !arg_types || ((dot = strrchr(u->path, '.')) && strv_find(arg_types, dot+1));
1031 }
1032
1033 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
1034 unsigned max_id_len, id_cols, state_cols;
1035 const UnitFileList *u;
1036
1037 max_id_len = sizeof("UNIT FILE")-1;
1038 state_cols = sizeof("STATE")-1;
1039
1040 for (u = units; u < units + c; u++) {
1041 max_id_len = MAX(max_id_len, strlen(basename(u->path)));
1042 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
1043 }
1044
1045 if (!arg_full) {
1046 unsigned basic_cols;
1047
1048 id_cols = MIN(max_id_len, 25u);
1049 basic_cols = 1 + id_cols + state_cols;
1050 if (basic_cols < (unsigned) columns())
1051 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
1052 } else
1053 id_cols = max_id_len;
1054
1055 if (!arg_no_legend)
1056 printf("%-*s %-*s\n",
1057 id_cols, "UNIT FILE",
1058 state_cols, "STATE");
1059
1060 for (u = units; u < units + c; u++) {
1061 _cleanup_free_ char *e = NULL;
1062 const char *on, *off;
1063 const char *id;
1064
1065 if (u->state == UNIT_FILE_MASKED ||
1066 u->state == UNIT_FILE_MASKED_RUNTIME ||
1067 u->state == UNIT_FILE_DISABLED ||
1068 u->state == UNIT_FILE_INVALID) {
1069 on = ansi_highlight_red();
1070 off = ansi_highlight_off();
1071 } else if (u->state == UNIT_FILE_ENABLED) {
1072 on = ansi_highlight_green();
1073 off = ansi_highlight_off();
1074 } else
1075 on = off = "";
1076
1077 id = basename(u->path);
1078
1079 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
1080
1081 printf("%-*s %s%-*s%s\n",
1082 id_cols, e ? e : id,
1083 on, state_cols, unit_file_state_to_string(u->state), off);
1084 }
1085
1086 if (!arg_no_legend)
1087 printf("\n%u unit files listed.\n", c);
1088 }
1089
1090 static int list_unit_files(sd_bus *bus, char **args) {
1091 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1092 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1093 _cleanup_free_ UnitFileList *units = NULL;
1094 UnitFileList *unit;
1095 size_t size = 0;
1096 unsigned c = 0;
1097 const char *state;
1098 char *path;
1099 int r;
1100
1101 pager_open_if_enabled();
1102
1103 if (avoid_bus()) {
1104 Hashmap *h;
1105 UnitFileList *u;
1106 Iterator i;
1107 unsigned n_units;
1108
1109 h = hashmap_new(string_hash_func, string_compare_func);
1110 if (!h)
1111 return log_oom();
1112
1113 r = unit_file_get_list(arg_scope, arg_root, h);
1114 if (r < 0) {
1115 unit_file_list_free(h);
1116 log_error("Failed to get unit file list: %s", strerror(-r));
1117 return r;
1118 }
1119
1120 n_units = hashmap_size(h);
1121 units = new(UnitFileList, n_units);
1122 if (!units) {
1123 unit_file_list_free(h);
1124 return log_oom();
1125 }
1126
1127 HASHMAP_FOREACH(u, h, i) {
1128 if (!output_show_unit_file(u, strv_skip_first(args)))
1129 continue;
1130
1131 units[c++] = *u;
1132 free(u);
1133 }
1134
1135 assert(c <= n_units);
1136 hashmap_free(h);
1137 } else {
1138 r = sd_bus_call_method(
1139 bus,
1140 "org.freedesktop.systemd1",
1141 "/org/freedesktop/systemd1",
1142 "org.freedesktop.systemd1.Manager",
1143 "ListUnitFiles",
1144 &error,
1145 &reply,
1146 NULL);
1147 if (r < 0) {
1148 log_error("Failed to list unit files: %s", bus_error_message(&error, r));
1149 return r;
1150 }
1151
1152 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
1153 if (r < 0)
1154 return bus_log_parse_error(r);
1155
1156 while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
1157
1158 if (!GREEDY_REALLOC(units, size, c + 1))
1159 return log_oom();
1160
1161 units[c] = (struct UnitFileList) {
1162 path,
1163 unit_file_state_from_string(state)
1164 };
1165
1166 if (output_show_unit_file(&units[c], strv_skip_first(args)))
1167 c ++;
1168
1169 }
1170 if (r < 0)
1171 return bus_log_parse_error(r);
1172
1173 r = sd_bus_message_exit_container(reply);
1174 if (r < 0)
1175 return bus_log_parse_error(r);
1176 }
1177
1178 if (c > 0) {
1179 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
1180 output_unit_file_list(units, c);
1181 }
1182
1183 if (avoid_bus())
1184 for (unit = units; unit < units + c; unit++)
1185 free(unit->path);
1186
1187 return 0;
1188 }
1189
1190 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
1191 _cleanup_free_ char *n = NULL;
1192 size_t max_len = MAX(columns(),20u);
1193 size_t len = 0;
1194 int i;
1195
1196 if (!arg_plain) {
1197
1198 for (i = level - 1; i >= 0; i--) {
1199 len += 2;
1200 if (len > max_len - 3 && !arg_full) {
1201 printf("%s...\n",max_len % 2 ? "" : " ");
1202 return 0;
1203 }
1204 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
1205 }
1206 len += 2;
1207
1208 if (len > max_len - 3 && !arg_full) {
1209 printf("%s...\n",max_len % 2 ? "" : " ");
1210 return 0;
1211 }
1212
1213 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
1214 }
1215
1216 if (arg_full){
1217 printf("%s\n", name);
1218 return 0;
1219 }
1220
1221 n = ellipsize(name, max_len-len, 100);
1222 if (!n)
1223 return log_oom();
1224
1225 printf("%s\n", n);
1226 return 0;
1227 }
1228
1229 static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
1230
1231 static const char *dependencies[_DEPENDENCY_MAX] = {
1232 [DEPENDENCY_FORWARD] = "Requires\0"
1233 "RequiresOverridable\0"
1234 "Requisite\0"
1235 "RequisiteOverridable\0"
1236 "Wants\0",
1237 [DEPENDENCY_REVERSE] = "RequiredBy\0"
1238 "RequiredByOverridable\0"
1239 "WantedBy\0"
1240 "PartOf\0",
1241 [DEPENDENCY_AFTER] = "After\0",
1242 [DEPENDENCY_BEFORE] = "Before\0",
1243 };
1244
1245 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1246 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1247 _cleanup_strv_free_ char **ret = NULL;
1248 _cleanup_free_ char *path = NULL;
1249 int r;
1250
1251 assert(bus);
1252 assert(name);
1253 assert(deps);
1254 assert_cc(ELEMENTSOF(dependencies) == _DEPENDENCY_MAX);
1255
1256 path = unit_dbus_path_from_name(name);
1257 if (!path)
1258 return log_oom();
1259
1260 r = sd_bus_call_method(
1261 bus,
1262 "org.freedesktop.systemd1",
1263 path,
1264 "org.freedesktop.DBus.Properties",
1265 "GetAll",
1266 &error,
1267 &reply,
1268 "s", "org.freedesktop.systemd1.Unit");
1269 if (r < 0) {
1270 log_error("Failed to get properties of %s: %s", name, bus_error_message(&error, r));
1271 return r;
1272 }
1273
1274 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
1275 if (r < 0)
1276 return bus_log_parse_error(r);
1277
1278 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
1279 const char *prop;
1280
1281 r = sd_bus_message_read(reply, "s", &prop);
1282 if (r < 0)
1283 return bus_log_parse_error(r);
1284
1285 if (!nulstr_contains(dependencies[arg_dependency], prop)) {
1286 r = sd_bus_message_skip(reply, "v");
1287 if (r < 0)
1288 return bus_log_parse_error(r);
1289 } else {
1290
1291 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as");
1292 if (r < 0)
1293 return bus_log_parse_error(r);
1294
1295 r = bus_message_read_strv_extend(reply, &ret);
1296 if (r < 0)
1297 return bus_log_parse_error(r);
1298
1299 r = sd_bus_message_exit_container(reply);
1300 if (r < 0)
1301 return bus_log_parse_error(r);
1302 }
1303
1304 r = sd_bus_message_exit_container(reply);
1305 if (r < 0)
1306 return bus_log_parse_error(r);
1307
1308 }
1309 if (r < 0)
1310 return bus_log_parse_error(r);
1311
1312 r = sd_bus_message_exit_container(reply);
1313 if (r < 0)
1314 return bus_log_parse_error(r);
1315
1316 *deps = ret;
1317 ret = NULL;
1318
1319 return 0;
1320 }
1321
1322 static int list_dependencies_compare(const void *_a, const void *_b) {
1323 const char **a = (const char**) _a, **b = (const char**) _b;
1324
1325 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1326 return 1;
1327 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1328 return -1;
1329
1330 return strcasecmp(*a, *b);
1331 }
1332
1333 static int list_dependencies_one(
1334 sd_bus *bus,
1335 const char *name,
1336 int level,
1337 char ***units,
1338 unsigned int branches) {
1339
1340 _cleanup_strv_free_ char **deps = NULL;
1341 char **c;
1342 int r = 0;
1343
1344 assert(bus);
1345 assert(name);
1346 assert(units);
1347
1348 r = strv_extend(units, name);
1349 if (r < 0)
1350 return log_oom();
1351
1352 r = list_dependencies_get_dependencies(bus, name, &deps);
1353 if (r < 0)
1354 return r;
1355
1356 qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1357
1358 STRV_FOREACH(c, deps) {
1359 int state;
1360
1361 if (strv_contains(*units, *c)) {
1362 if (!arg_plain) {
1363 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1364 if (r < 0)
1365 return r;
1366 }
1367 continue;
1368 }
1369
1370 state = check_one_unit(bus, *c, "activating\0active\0reloading\0", true);
1371 if (state > 0)
1372 printf("%s%s%s", ansi_highlight_green(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1373 else
1374 printf("%s%s%s", ansi_highlight_red(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1375
1376 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1377 if (r < 0)
1378 return r;
1379
1380 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1381 r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (c[1] == NULL ? 0 : 1));
1382 if (r < 0)
1383 return r;
1384 }
1385 }
1386
1387 if (!arg_plain)
1388 strv_remove(*units, name);
1389
1390 return 0;
1391 }
1392
1393 static int list_dependencies(sd_bus *bus, char **args) {
1394 _cleanup_strv_free_ char **units = NULL;
1395 _cleanup_free_ char *unit = NULL;
1396 const char *u;
1397
1398 assert(bus);
1399
1400 if (args[1]) {
1401 unit = unit_name_mangle(args[1], MANGLE_NOGLOB);
1402 if (!unit)
1403 return log_oom();
1404 u = unit;
1405 } else
1406 u = SPECIAL_DEFAULT_TARGET;
1407
1408 pager_open_if_enabled();
1409
1410 puts(u);
1411
1412 return list_dependencies_one(bus, u, 0, &units, 0);
1413 }
1414
1415 struct machine_info {
1416 bool is_host;
1417 char *name;
1418 char *state;
1419 char *control_group;
1420 uint32_t n_failed_units;
1421 uint32_t n_jobs;
1422 usec_t timestamp;
1423 };
1424
1425 static const struct bus_properties_map machine_info_property_map[] = {
1426 { "SystemState", "s", NULL, offsetof(struct machine_info, state) },
1427 { "NJobs", "u", NULL, offsetof(struct machine_info, n_jobs) },
1428 { "NFailedUnits", "u", NULL, offsetof(struct machine_info, n_failed_units) },
1429 { "ControlGroup", "s", NULL, offsetof(struct machine_info, control_group) },
1430 { "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp) },
1431 {}
1432 };
1433
1434 static void free_machines_list(struct machine_info *machine_infos, int n) {
1435 int i;
1436
1437 if (!machine_infos)
1438 return;
1439
1440 for (i = 0; i < n; i++) {
1441 free(machine_infos[i].name);
1442 free(machine_infos[i].state);
1443 free(machine_infos[i].control_group);
1444 }
1445
1446 free(machine_infos);
1447 }
1448
1449 static int compare_machine_info(const void *a, const void *b) {
1450 const struct machine_info *u = a, *v = b;
1451
1452 if (u->is_host != v->is_host)
1453 return u->is_host > v->is_host ? 1 : -1;
1454
1455 return strcasecmp(u->name, v->name);
1456 }
1457
1458 static int get_machine_properties(sd_bus *bus, struct machine_info *mi) {
1459 _cleanup_bus_unref_ sd_bus *container = NULL;
1460 int r;
1461
1462 assert(mi);
1463
1464 if (!bus) {
1465 r = sd_bus_open_system_container(&container, mi->name);
1466 if (r < 0)
1467 return r;
1468
1469 bus = container;
1470 }
1471
1472 r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, mi);
1473 if (r < 0)
1474 return r;
1475
1476 return 0;
1477 }
1478
1479 static bool output_show_machine(const char *name, char **patterns) {
1480 char **i;
1481
1482 assert(name);
1483
1484 if (strv_isempty(patterns))
1485 return true;
1486
1487 STRV_FOREACH(i, patterns)
1488 if (fnmatch(*i, name, FNM_NOESCAPE) == 0)
1489 return true;
1490
1491 return false;
1492 }
1493
1494 static int get_machine_list(
1495 sd_bus *bus,
1496 struct machine_info **_machine_infos,
1497 char **patterns) {
1498
1499 struct machine_info *machine_infos = NULL;
1500 _cleanup_strv_free_ char **m = NULL;
1501 _cleanup_free_ char *hn = NULL;
1502 size_t sz = 0;
1503 char **i;
1504 int c = 0;
1505
1506 hn = gethostname_malloc();
1507 if (!hn)
1508 return log_oom();
1509
1510 if (output_show_machine(hn, patterns)) {
1511 if (!GREEDY_REALLOC0(machine_infos, sz, c+1))
1512 return log_oom();
1513
1514 machine_infos[c].is_host = true;
1515 machine_infos[c].name = hn;
1516 hn = NULL;
1517
1518 get_machine_properties(bus, &machine_infos[c]);
1519 c++;
1520 }
1521
1522 sd_get_machine_names(&m);
1523 STRV_FOREACH(i, m) {
1524 _cleanup_free_ char *class = NULL;
1525
1526 if (!output_show_machine(*i, patterns))
1527 continue;
1528
1529 sd_machine_get_class(*i, &class);
1530 if (!streq_ptr(class, "container"))
1531 continue;
1532
1533 if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) {
1534 free_machines_list(machine_infos, c);
1535 return log_oom();
1536 }
1537
1538 machine_infos[c].is_host = false;
1539 machine_infos[c].name = strdup(*i);
1540 if (!machine_infos[c].name) {
1541 free_machines_list(machine_infos, c);
1542 return log_oom();
1543 }
1544
1545 get_machine_properties(NULL, &machine_infos[c]);
1546 c++;
1547 }
1548
1549 *_machine_infos = machine_infos;
1550 return c;
1551 }
1552
1553 static void output_machines_list(struct machine_info *machine_infos, unsigned n) {
1554 struct machine_info *m;
1555 unsigned
1556 namelen = sizeof("NAME") - 1,
1557 statelen = sizeof("STATE") - 1,
1558 failedlen = sizeof("FAILED") - 1,
1559 jobslen = sizeof("JOBS") - 1;
1560
1561 assert(machine_infos || n == 0);
1562
1563 for (m = machine_infos; m < machine_infos + n; m++) {
1564 namelen = MAX(namelen, strlen(m->name) + (m->is_host ? sizeof(" (host)") - 1 : 0));
1565 statelen = MAX(statelen, m->state ? strlen(m->state) : 0);
1566 failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units));
1567 jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs));
1568 }
1569
1570 if (!arg_no_legend)
1571 printf("%-*s %-*s %-*s %-*s\n",
1572 namelen, "NAME",
1573 statelen, "STATE",
1574 failedlen, "FAILED",
1575 jobslen, "JOBS");
1576
1577 for (m = machine_infos; m < machine_infos + n; m++) {
1578 const char *on_state, *off_state, *on_failed, *off_failed;
1579
1580 if (streq_ptr(m->state, "degraded")) {
1581 on_state = ansi_highlight_red();
1582 off_state = ansi_highlight_off();
1583 } else if (!streq_ptr(m->state, "running")) {
1584 on_state = ansi_highlight_yellow();
1585 off_state = ansi_highlight_off();
1586 } else
1587 on_state = off_state = "";
1588
1589 if (m->n_failed_units > 0) {
1590 on_failed = ansi_highlight_red();
1591 off_failed = ansi_highlight_off();
1592 } else
1593 on_failed = off_failed = "";
1594
1595 if (m->is_host)
1596 printf("%-*s (host) %s%-*s%s %s%*u%s %*u\n",
1597 (int) (namelen - (sizeof(" (host)")-1)), strna(m->name),
1598 on_state, statelen, strna(m->state), off_state,
1599 on_failed, failedlen, m->n_failed_units, off_failed,
1600 jobslen, m->n_jobs);
1601 else
1602 printf("%-*s %s%-*s%s %s%*u%s %*u\n",
1603 namelen, strna(m->name),
1604 on_state, statelen, strna(m->state), off_state,
1605 on_failed, failedlen, m->n_failed_units, off_failed,
1606 jobslen, m->n_jobs);
1607 }
1608
1609 if (!arg_no_legend)
1610 printf("\n%u machines listed.\n", n);
1611 }
1612
1613 static int list_machines(sd_bus *bus, char **args) {
1614 struct machine_info *machine_infos = NULL;
1615 int r;
1616
1617 assert(bus);
1618
1619 if (geteuid() != 0) {
1620 log_error("Must be root.");
1621 return -EPERM;
1622 }
1623
1624 pager_open_if_enabled();
1625
1626 r = get_machine_list(bus, &machine_infos, strv_skip_first(args));
1627 if (r < 0)
1628 return r;
1629
1630 qsort_safe(machine_infos, r, sizeof(struct machine_info), compare_machine_info);
1631 output_machines_list(machine_infos, r);
1632 free_machines_list(machine_infos, r);
1633
1634 return 0;
1635 }
1636
1637 static int get_default(sd_bus *bus, char **args) {
1638 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1639 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1640 _cleanup_free_ char *_path = NULL;
1641 const char *path;
1642 int r;
1643
1644 if (!bus || avoid_bus()) {
1645 r = unit_file_get_default(arg_scope, arg_root, &_path);
1646 if (r < 0) {
1647 log_error("Failed to get default target: %s", strerror(-r));
1648 return r;
1649 }
1650 path = _path;
1651
1652 } else {
1653 r = sd_bus_call_method(
1654 bus,
1655 "org.freedesktop.systemd1",
1656 "/org/freedesktop/systemd1",
1657 "org.freedesktop.systemd1.Manager",
1658 "GetDefaultTarget",
1659 &error,
1660 &reply,
1661 NULL);
1662 if (r < 0) {
1663 log_error("Failed to get default target: %s", bus_error_message(&error, -r));
1664 return r;
1665 }
1666
1667 r = sd_bus_message_read(reply, "s", &path);
1668 if (r < 0)
1669 return bus_log_parse_error(r);
1670 }
1671
1672 if (path)
1673 printf("%s\n", path);
1674
1675 return 0;
1676 }
1677
1678 static void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_changes) {
1679 unsigned i;
1680
1681 assert(changes || n_changes == 0);
1682
1683 for (i = 0; i < n_changes; i++) {
1684 if (changes[i].type == UNIT_FILE_SYMLINK)
1685 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
1686 else
1687 log_info("rm '%s'", changes[i].path);
1688 }
1689 }
1690
1691 static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) {
1692 const char *type, *path, *source;
1693 int r;
1694
1695 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
1696 if (r < 0)
1697 return bus_log_parse_error(r);
1698
1699 while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
1700 if (!arg_quiet) {
1701 if (streq(type, "symlink"))
1702 log_info("ln -s '%s' '%s'", source, path);
1703 else
1704 log_info("rm '%s'", path);
1705 }
1706 }
1707 if (r < 0)
1708 return bus_log_parse_error(r);
1709
1710 r = sd_bus_message_exit_container(m);
1711 if (r < 0)
1712 return bus_log_parse_error(r);
1713
1714 return 0;
1715 }
1716
1717 static int set_default(sd_bus *bus, char **args) {
1718 _cleanup_free_ char *unit = NULL;
1719 UnitFileChange *changes = NULL;
1720 unsigned n_changes = 0;
1721 int r;
1722
1723 unit = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".target");
1724 if (!unit)
1725 return log_oom();
1726
1727 if (!bus || avoid_bus()) {
1728 r = unit_file_set_default(arg_scope, arg_root, unit, arg_force, &changes, &n_changes);
1729 if (r < 0) {
1730 log_error("Failed to set default target: %s", strerror(-r));
1731 return r;
1732 }
1733
1734 if (!arg_quiet)
1735 dump_unit_file_changes(changes, n_changes);
1736
1737 r = 0;
1738 } else {
1739 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1740 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1741
1742 r = sd_bus_call_method(
1743 bus,
1744 "org.freedesktop.systemd1",
1745 "/org/freedesktop/systemd1",
1746 "org.freedesktop.systemd1.Manager",
1747 "SetDefaultTarget",
1748 &error,
1749 &reply,
1750 "sb", unit, arg_force);
1751 if (r < 0) {
1752 log_error("Failed to set default target: %s", bus_error_message(&error, -r));
1753 return r;
1754 }
1755
1756 r = deserialize_and_dump_unit_file_changes(reply);
1757 if (r < 0)
1758 return r;
1759
1760 /* Try to reload if enabeld */
1761 if (!arg_no_reload)
1762 r = daemon_reload(bus, args);
1763 else
1764 r = 0;
1765 }
1766
1767 unit_file_changes_free(changes, n_changes);
1768
1769 return r;
1770 }
1771
1772 struct job_info {
1773 uint32_t id;
1774 const char *name, *type, *state;
1775 };
1776
1777 static void output_jobs_list(const struct job_info* jobs, unsigned n, bool skipped) {
1778 unsigned id_len, unit_len, type_len, state_len;
1779 const struct job_info *j;
1780 const char *on, *off;
1781 bool shorten = false;
1782
1783 assert(n == 0 || jobs);
1784
1785 if (n == 0) {
1786 on = ansi_highlight_green();
1787 off = ansi_highlight_off();
1788
1789 printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off);
1790 return;
1791 }
1792
1793 pager_open_if_enabled();
1794
1795 id_len = sizeof("JOB")-1;
1796 unit_len = sizeof("UNIT")-1;
1797 type_len = sizeof("TYPE")-1;
1798 state_len = sizeof("STATE")-1;
1799
1800 for (j = jobs; j < jobs + n; j++) {
1801 uint32_t id = j->id;
1802 assert(j->name && j->type && j->state);
1803
1804 id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
1805 unit_len = MAX(unit_len, strlen(j->name));
1806 type_len = MAX(type_len, strlen(j->type));
1807 state_len = MAX(state_len, strlen(j->state));
1808 }
1809
1810 if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
1811 unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
1812 shorten = true;
1813 }
1814
1815 if (!arg_no_legend)
1816 printf("%*s %-*s %-*s %-*s\n",
1817 id_len, "JOB",
1818 unit_len, "UNIT",
1819 type_len, "TYPE",
1820 state_len, "STATE");
1821
1822 for (j = jobs; j < jobs + n; j++) {
1823 _cleanup_free_ char *e = NULL;
1824
1825 if (streq(j->state, "running")) {
1826 on = ansi_highlight();
1827 off = ansi_highlight_off();
1828 } else
1829 on = off = "";
1830
1831 e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
1832 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
1833 id_len, j->id,
1834 on, unit_len, e ? e : j->name, off,
1835 type_len, j->type,
1836 on, state_len, j->state, off);
1837 }
1838
1839 if (!arg_no_legend) {
1840 on = ansi_highlight();
1841 off = ansi_highlight_off();
1842
1843 printf("\n%s%u jobs listed%s.\n", on, n, off);
1844 }
1845 }
1846
1847 static bool output_show_job(struct job_info *job, char **patterns) {
1848 char **pattern;
1849
1850 assert(job);
1851
1852 if (strv_isempty(patterns))
1853 return true;
1854
1855 STRV_FOREACH(pattern, patterns)
1856 if (fnmatch(*pattern, job->name, FNM_NOESCAPE) == 0)
1857 return true;
1858 return false;
1859 }
1860
1861 static int list_jobs(sd_bus *bus, char **args) {
1862 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1863 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1864 const char *name, *type, *state, *job_path, *unit_path;
1865 _cleanup_free_ struct job_info *jobs = NULL;
1866 size_t size = 0;
1867 unsigned c = 0;
1868 uint32_t id;
1869 int r;
1870 bool skipped = false;
1871
1872 r = sd_bus_call_method(
1873 bus,
1874 "org.freedesktop.systemd1",
1875 "/org/freedesktop/systemd1",
1876 "org.freedesktop.systemd1.Manager",
1877 "ListJobs",
1878 &error,
1879 &reply,
1880 NULL);
1881 if (r < 0) {
1882 log_error("Failed to list jobs: %s", bus_error_message(&error, r));
1883 return r;
1884 }
1885
1886 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
1887 if (r < 0)
1888 return bus_log_parse_error(r);
1889
1890 while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, &job_path, &unit_path)) > 0) {
1891 struct job_info job = { id, name, type, state };
1892
1893 if (!output_show_job(&job, strv_skip_first(args))) {
1894 skipped = true;
1895 continue;
1896 }
1897
1898 if (!GREEDY_REALLOC(jobs, size, c + 1))
1899 return log_oom();
1900
1901 jobs[c++] = job;
1902 }
1903 if (r < 0)
1904 return bus_log_parse_error(r);
1905
1906 r = sd_bus_message_exit_container(reply);
1907 if (r < 0)
1908 return bus_log_parse_error(r);
1909
1910 output_jobs_list(jobs, c, skipped);
1911 return r;
1912 }
1913
1914 static int cancel_job(sd_bus *bus, char **args) {
1915 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1916 char **name;
1917
1918 assert(args);
1919
1920 if (strv_length(args) <= 1)
1921 return daemon_reload(bus, args);
1922
1923 STRV_FOREACH(name, args+1) {
1924 uint32_t id;
1925 int r;
1926
1927 r = safe_atou32(*name, &id);
1928 if (r < 0) {
1929 log_error("Failed to parse job id \"%s\": %s", *name, strerror(-r));
1930 return r;
1931 }
1932
1933 r = sd_bus_call_method(
1934 bus,
1935 "org.freedesktop.systemd1",
1936 "/org/freedesktop/systemd1",
1937 "org.freedesktop.systemd1.Manager",
1938 "CancelJob",
1939 &error,
1940 NULL,
1941 "u", id);
1942 if (r < 0) {
1943 log_error("Failed to cancel job %u: %s", (unsigned) id, bus_error_message(&error, r));
1944 return r;
1945 }
1946 }
1947
1948 return 0;
1949 }
1950
1951 static int need_daemon_reload(sd_bus *bus, const char *unit) {
1952 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1953 const char *path;
1954 int b, r;
1955
1956 /* We ignore all errors here, since this is used to show a
1957 * warning only */
1958
1959 /* We don't use unit_dbus_path_from_name() directly since we
1960 * don't want to load the unit if it isn't loaded. */
1961
1962 r = sd_bus_call_method(
1963 bus,
1964 "org.freedesktop.systemd1",
1965 "/org/freedesktop/systemd1",
1966 "org.freedesktop.systemd1.Manager",
1967 "GetUnit",
1968 NULL,
1969 &reply,
1970 "s", unit);
1971 if (r < 0)
1972 return r;
1973
1974 r = sd_bus_message_read(reply, "o", &path);
1975 if (r < 0)
1976 return r;
1977
1978 r = sd_bus_get_property_trivial(
1979 bus,
1980 "org.freedesktop.systemd1",
1981 path,
1982 "org.freedesktop.systemd1.Unit",
1983 "NeedDaemonReload",
1984 NULL,
1985 'b', &b);
1986 if (r < 0)
1987 return r;
1988
1989 return b;
1990 }
1991
1992 typedef struct WaitData {
1993 Set *set;
1994
1995 char *name;
1996 char *result;
1997 } WaitData;
1998
1999 static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data, sd_bus_error *error) {
2000 WaitData *d = data;
2001
2002 assert(bus);
2003 assert(m);
2004 assert(d);
2005
2006 log_debug("Got D-Bus request: %s.%s() on %s",
2007 sd_bus_message_get_interface(m),
2008 sd_bus_message_get_member(m),
2009 sd_bus_message_get_path(m));
2010
2011 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected")) {
2012 log_error("Warning! D-Bus connection terminated.");
2013 sd_bus_close(bus);
2014 } else if (sd_bus_message_is_signal(m, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2015 uint32_t id;
2016 const char *path, *result, *unit;
2017 char *ret;
2018 int r;
2019
2020 r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
2021 if (r >= 0) {
2022 ret = set_remove(d->set, (char*) path);
2023 if (!ret)
2024 return 0;
2025
2026 free(ret);
2027
2028 if (!isempty(result))
2029 d->result = strdup(result);
2030
2031 if (!isempty(unit))
2032 d->name = strdup(unit);
2033
2034 return 0;
2035 }
2036 #ifndef NOLEGACY
2037 r = sd_bus_message_read(m, "uos", &id, &path, &result);
2038 if (r >= 0) {
2039 ret = set_remove(d->set, (char*) path);
2040 if (!ret)
2041 return 0;
2042
2043 free(ret);
2044
2045 if (*result)
2046 d->result = strdup(result);
2047
2048 return 0;
2049 }
2050 #endif
2051
2052 bus_log_parse_error(r);
2053 }
2054
2055 return 0;
2056 }
2057
2058 static int enable_wait_for_jobs(sd_bus *bus) {
2059 int r;
2060
2061 assert(bus);
2062
2063 r = sd_bus_add_match(
2064 bus,
2065 "type='signal',"
2066 "sender='org.freedesktop.systemd1',"
2067 "interface='org.freedesktop.systemd1.Manager',"
2068 "member='JobRemoved',"
2069 "path='/org/freedesktop/systemd1'",
2070 NULL, NULL);
2071 if (r < 0) {
2072 log_error("Failed to add match");
2073 return -EIO;
2074 }
2075
2076 /* This is slightly dirty, since we don't undo the match registrations. */
2077 return 0;
2078 }
2079
2080 static int bus_process_wait(sd_bus *bus) {
2081 int r;
2082
2083 for (;;) {
2084 r = sd_bus_process(bus, NULL);
2085 if (r < 0)
2086 return r;
2087 if (r > 0)
2088 return 0;
2089 r = sd_bus_wait(bus, (uint64_t) -1);
2090 if (r < 0)
2091 return r;
2092 }
2093 }
2094
2095 static int check_wait_response(WaitData *d) {
2096 int r = 0;
2097
2098 assert(d->result);
2099
2100 if (!arg_quiet) {
2101 if (streq(d->result, "timeout"))
2102 log_error("Job for %s timed out.", strna(d->name));
2103 else if (streq(d->result, "canceled"))
2104 log_error("Job for %s canceled.", strna(d->name));
2105 else if (streq(d->result, "dependency"))
2106 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d->name));
2107 else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
2108 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d->name), strna(d->name));
2109 }
2110
2111 if (streq(d->result, "timeout"))
2112 r = -ETIME;
2113 else if (streq(d->result, "canceled"))
2114 r = -ECANCELED;
2115 else if (streq(d->result, "dependency"))
2116 r = -EIO;
2117 else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
2118 r = -EIO;
2119
2120 return r;
2121 }
2122
2123 static int wait_for_jobs(sd_bus *bus, Set *s) {
2124 WaitData d = { .set = s };
2125 int r = 0, q;
2126
2127 assert(bus);
2128 assert(s);
2129
2130 q = sd_bus_add_filter(bus, wait_filter, &d);
2131 if (q < 0)
2132 return log_oom();
2133
2134 while (!set_isempty(s)) {
2135 q = bus_process_wait(bus);
2136 if (q < 0) {
2137 log_error("Failed to wait for response: %s", strerror(-r));
2138 return q;
2139 }
2140
2141 if (d.result) {
2142 q = check_wait_response(&d);
2143 /* Return the first error as it is most likely to be
2144 * meaningful. */
2145 if (q < 0 && r == 0)
2146 r = q;
2147 log_debug("Got result %s/%s for job %s",
2148 strna(d.result), strerror(-q), strna(d.name));
2149 }
2150
2151 free(d.name);
2152 d.name = NULL;
2153
2154 free(d.result);
2155 d.result = NULL;
2156 }
2157
2158 q = sd_bus_remove_filter(bus, wait_filter, &d);
2159 if (q < 0 && r == 0)
2160 r = q;
2161
2162 return r;
2163 }
2164
2165 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) {
2166 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2167 _cleanup_free_ char *n = NULL, *state = NULL;
2168 const char *path;
2169 int r;
2170
2171 assert(name);
2172
2173 n = unit_name_mangle(name, MANGLE_NOGLOB);
2174 if (!n)
2175 return log_oom();
2176
2177 /* We don't use unit_dbus_path_from_name() directly since we
2178 * don't want to load the unit if it isn't loaded. */
2179
2180 r = sd_bus_call_method(
2181 bus,
2182 "org.freedesktop.systemd1",
2183 "/org/freedesktop/systemd1",
2184 "org.freedesktop.systemd1.Manager",
2185 "GetUnit",
2186 NULL,
2187 &reply,
2188 "s", n);
2189 if (r < 0) {
2190 if (!quiet)
2191 puts("unknown");
2192 return 0;
2193 }
2194
2195 r = sd_bus_message_read(reply, "o", &path);
2196 if (r < 0)
2197 return bus_log_parse_error(r);
2198
2199 r = sd_bus_get_property_string(
2200 bus,
2201 "org.freedesktop.systemd1",
2202 path,
2203 "org.freedesktop.systemd1.Unit",
2204 "ActiveState",
2205 NULL,
2206 &state);
2207 if (r < 0) {
2208 if (!quiet)
2209 puts("unknown");
2210 return 0;
2211 }
2212
2213 if (!quiet)
2214 puts(state);
2215
2216 return nulstr_contains(good_states, state);
2217 }
2218
2219 static int check_triggering_units(
2220 sd_bus *bus,
2221 const char *name) {
2222
2223 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2224 _cleanup_free_ char *path = NULL, *n = NULL, *state = NULL;
2225 _cleanup_strv_free_ char **triggered_by = NULL;
2226 bool print_warning_label = true;
2227 char **i;
2228 int r;
2229
2230 n = unit_name_mangle(name, MANGLE_NOGLOB);
2231 if (!n)
2232 return log_oom();
2233
2234 path = unit_dbus_path_from_name(n);
2235 if (!path)
2236 return log_oom();
2237
2238 r = sd_bus_get_property_string(
2239 bus,
2240 "org.freedesktop.systemd1",
2241 path,
2242 "org.freedesktop.systemd1.Unit",
2243 "LoadState",
2244 &error,
2245 &state);
2246 if (r < 0) {
2247 log_error("Failed to get load state of %s: %s", n, bus_error_message(&error, r));
2248 return r;
2249 }
2250
2251 if (streq(state, "masked"))
2252 return 0;
2253
2254 r = sd_bus_get_property_strv(
2255 bus,
2256 "org.freedesktop.systemd1",
2257 path,
2258 "org.freedesktop.systemd1.Unit",
2259 "TriggeredBy",
2260 &error,
2261 &triggered_by);
2262 if (r < 0) {
2263 log_error("Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
2264 return r;
2265 }
2266
2267 STRV_FOREACH(i, triggered_by) {
2268 r = check_one_unit(bus, *i, "active\0reloading\0", true);
2269 if (r < 0) {
2270 log_error("Failed to check unit: %s", strerror(-r));
2271 return r;
2272 }
2273
2274 if (r == 0)
2275 continue;
2276
2277 if (print_warning_label) {
2278 log_warning("Warning: Stopping %s, but it can still be activated by:", n);
2279 print_warning_label = false;
2280 }
2281
2282 log_warning(" %s", *i);
2283 }
2284
2285 return 0;
2286 }
2287
2288 static const char *verb_to_method(const char *verb) {
2289 uint i;
2290
2291 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2292 if (streq_ptr(unit_actions[i].verb, verb))
2293 return unit_actions[i].method;
2294
2295 return "StartUnit";
2296 }
2297
2298 static const char *method_to_verb(const char *method) {
2299 uint i;
2300
2301 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2302 if (streq_ptr(unit_actions[i].method, method))
2303 return unit_actions[i].verb;
2304
2305 return "n/a";
2306 }
2307
2308 static int start_unit_one(
2309 sd_bus *bus,
2310 const char *method,
2311 const char *name,
2312 const char *mode,
2313 sd_bus_error *error,
2314 Set *s) {
2315
2316 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2317 const char *path;
2318 int r;
2319
2320 assert(method);
2321 assert(name);
2322 assert(mode);
2323 assert(error);
2324
2325 log_debug("Calling manager for %s on %s, %s", method, name, mode);
2326 r = sd_bus_call_method(
2327 bus,
2328 "org.freedesktop.systemd1",
2329 "/org/freedesktop/systemd1",
2330 "org.freedesktop.systemd1.Manager",
2331 method,
2332 error,
2333 &reply,
2334 "ss", name, mode);
2335 if (r < 0) {
2336 const char *verb;
2337
2338 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
2339 /* There's always a fallback possible for
2340 * legacy actions. */
2341 return -EADDRNOTAVAIL;
2342
2343 verb = method_to_verb(method);
2344
2345 log_error("Failed to %s %s: %s", verb, name, bus_error_message(error, r));
2346 return r;
2347 }
2348
2349 r = sd_bus_message_read(reply, "o", &path);
2350 if (r < 0)
2351 return bus_log_parse_error(r);
2352
2353 if (need_daemon_reload(bus, name) > 0)
2354 log_warning("Warning: Unit file of %s changed on disk, 'systemctl%s daemon-reload' recommended.",
2355 name, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
2356
2357 if (s) {
2358 char *p;
2359
2360 p = strdup(path);
2361 if (!p)
2362 return log_oom();
2363
2364 log_debug("Adding %s to the set", p);
2365 r = set_consume(s, p);
2366 if (r < 0)
2367 return log_oom();
2368 }
2369
2370 return 0;
2371 }
2372
2373 static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) {
2374
2375 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2376 _cleanup_strv_free_ char **mangled = NULL, **globs = NULL;
2377 char **name;
2378 int r = 0, i;
2379
2380 STRV_FOREACH(name, names) {
2381 char *t;
2382
2383 if (suffix)
2384 t = unit_name_mangle_with_suffix(*name, MANGLE_GLOB, suffix);
2385 else
2386 t = unit_name_mangle(*name, MANGLE_GLOB);
2387 if (!t)
2388 return log_oom();
2389
2390 if (string_is_glob(t))
2391 r = strv_consume(&globs, t);
2392 else
2393 r = strv_consume(&mangled, t);
2394 if (r < 0)
2395 return log_oom();
2396 }
2397
2398 /* Query the manager only if any of the names are a glob, since
2399 * this is fairly expensive */
2400 if (!strv_isempty(globs)) {
2401 _cleanup_free_ UnitInfo *unit_infos = NULL;
2402
2403 r = get_unit_list(bus, &reply, &unit_infos, globs);
2404 if (r < 0)
2405 return r;
2406
2407 for (i = 0; i < r; i++)
2408 if (strv_extend(&mangled, unit_infos[i].id) < 0)
2409 return log_oom();
2410 }
2411
2412 *ret = mangled;
2413 mangled = NULL; /* do not free */
2414 return 0;
2415 }
2416
2417 static const struct {
2418 const char *target;
2419 const char *verb;
2420 const char *mode;
2421 } action_table[_ACTION_MAX] = {
2422 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
2423 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
2424 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
2425 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
2426 [ACTION_RUNLEVEL2] = { SPECIAL_RUNLEVEL2_TARGET, NULL, "isolate" },
2427 [ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
2428 [ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
2429 [ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_TARGET, NULL, "isolate" },
2430 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
2431 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
2432 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
2433 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
2434 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
2435 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
2436 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
2437 };
2438
2439 static enum action verb_to_action(const char *verb) {
2440 enum action i;
2441
2442 for (i = _ACTION_INVALID; i < _ACTION_MAX; i++)
2443 if (streq_ptr(action_table[i].verb, verb))
2444 return i;
2445
2446 return _ACTION_INVALID;
2447 }
2448
2449 static int start_unit(sd_bus *bus, char **args) {
2450 _cleanup_set_free_free_ Set *s = NULL;
2451 _cleanup_strv_free_ char **names = NULL;
2452 const char *method, *mode, *one_name;
2453 char **name;
2454 int r = 0;
2455
2456 assert(bus);
2457
2458 ask_password_agent_open_if_enabled();
2459
2460 if (arg_action == ACTION_SYSTEMCTL) {
2461 enum action action;
2462 method = verb_to_method(args[0]);
2463 action = verb_to_action(args[0]);
2464
2465 mode = streq(args[0], "isolate") ? "isolate" :
2466 action_table[action].mode ?: arg_job_mode;
2467
2468 one_name = action_table[action].target;
2469 } else {
2470 assert(arg_action < ELEMENTSOF(action_table));
2471 assert(action_table[arg_action].target);
2472
2473 method = "StartUnit";
2474
2475 mode = action_table[arg_action].mode;
2476 one_name = action_table[arg_action].target;
2477 }
2478
2479 if (one_name)
2480 names = strv_new(one_name, NULL);
2481 else {
2482 r = expand_names(bus, args + 1, NULL, &names);
2483 if (r < 0)
2484 log_error("Failed to expand names: %s", strerror(-r));
2485 }
2486
2487 if (!arg_no_block) {
2488 r = enable_wait_for_jobs(bus);
2489 if (r < 0) {
2490 log_error("Could not watch jobs: %s", strerror(-r));
2491 return r;
2492 }
2493
2494 s = set_new(string_hash_func, string_compare_func);
2495 if (!s)
2496 return log_oom();
2497 }
2498
2499 STRV_FOREACH(name, names) {
2500 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2501 int q;
2502
2503 q = start_unit_one(bus, method, *name, mode, &error, s);
2504 if (r >= 0 && q < 0)
2505 r = translate_bus_error_to_exit_status(q, &error);
2506 }
2507
2508 if (!arg_no_block) {
2509 int q;
2510
2511 q = wait_for_jobs(bus, s);
2512 if (q < 0)
2513 return q;
2514
2515 /* When stopping units, warn if they can still be triggered by
2516 * another active unit (socket, path, timer) */
2517 if (!arg_quiet && streq(method, "StopUnit"))
2518 STRV_FOREACH(name, names)
2519 check_triggering_units(bus, *name);
2520 }
2521
2522 return r;
2523 }
2524
2525 /* Ask systemd-logind, which might grant access to unprivileged users
2526 * through PolicyKit */
2527 static int reboot_with_logind(sd_bus *bus, enum action a) {
2528 #ifdef HAVE_LOGIND
2529 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2530 const char *method;
2531 int r;
2532
2533 if (!bus)
2534 return -EIO;
2535
2536 polkit_agent_open_if_enabled();
2537
2538 switch (a) {
2539
2540 case ACTION_REBOOT:
2541 method = "Reboot";
2542 break;
2543
2544 case ACTION_POWEROFF:
2545 method = "PowerOff";
2546 break;
2547
2548 case ACTION_SUSPEND:
2549 method = "Suspend";
2550 break;
2551
2552 case ACTION_HIBERNATE:
2553 method = "Hibernate";
2554 break;
2555
2556 case ACTION_HYBRID_SLEEP:
2557 method = "HybridSleep";
2558 break;
2559
2560 default:
2561 return -EINVAL;
2562 }
2563
2564 r = sd_bus_call_method(
2565 bus,
2566 "org.freedesktop.login1",
2567 "/org/freedesktop/login1",
2568 "org.freedesktop.login1.Manager",
2569 method,
2570 &error,
2571 NULL,
2572 "b", true);
2573 if (r < 0)
2574 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
2575
2576 return r;
2577 #else
2578 return -ENOSYS;
2579 #endif
2580 }
2581
2582 static int check_inhibitors(sd_bus *bus, enum action a) {
2583 #ifdef HAVE_LOGIND
2584 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2585 _cleanup_strv_free_ char **sessions = NULL;
2586 const char *what, *who, *why, *mode;
2587 uint32_t uid, pid;
2588 unsigned c = 0;
2589 char **s;
2590 int r;
2591
2592 if (!bus)
2593 return 0;
2594
2595 if (arg_ignore_inhibitors || arg_force > 0)
2596 return 0;
2597
2598 if (arg_when > 0)
2599 return 0;
2600
2601 if (geteuid() == 0)
2602 return 0;
2603
2604 if (!on_tty())
2605 return 0;
2606
2607 r = sd_bus_call_method(
2608 bus,
2609 "org.freedesktop.login1",
2610 "/org/freedesktop/login1",
2611 "org.freedesktop.login1.Manager",
2612 "ListInhibitors",
2613 NULL,
2614 &reply,
2615 NULL);
2616 if (r < 0)
2617 /* If logind is not around, then there are no inhibitors... */
2618 return 0;
2619
2620 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
2621 if (r < 0)
2622 return bus_log_parse_error(r);
2623
2624 while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
2625 _cleanup_free_ char *comm = NULL, *user = NULL;
2626 _cleanup_strv_free_ char **sv = NULL;
2627
2628 if (!streq(mode, "block"))
2629 continue;
2630
2631 sv = strv_split(what, ":");
2632 if (!sv)
2633 return log_oom();
2634
2635 if (!strv_contains(sv,
2636 a == ACTION_HALT ||
2637 a == ACTION_POWEROFF ||
2638 a == ACTION_REBOOT ||
2639 a == ACTION_KEXEC ? "shutdown" : "sleep"))
2640 continue;
2641
2642 get_process_comm(pid, &comm);
2643 user = uid_to_name(uid);
2644
2645 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
2646 who, (unsigned long) pid, strna(comm), strna(user), why);
2647
2648 c++;
2649 }
2650 if (r < 0)
2651 return bus_log_parse_error(r);
2652
2653 r = sd_bus_message_exit_container(reply);
2654 if (r < 0)
2655 return bus_log_parse_error(r);
2656
2657 /* Check for current sessions */
2658 sd_get_sessions(&sessions);
2659 STRV_FOREACH(s, sessions) {
2660 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
2661
2662 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
2663 continue;
2664
2665 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
2666 continue;
2667
2668 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
2669 continue;
2670
2671 sd_session_get_tty(*s, &tty);
2672 sd_session_get_seat(*s, &seat);
2673 sd_session_get_service(*s, &service);
2674 user = uid_to_name(uid);
2675
2676 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
2677 c++;
2678 }
2679
2680 if (c <= 0)
2681 return 0;
2682
2683 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
2684 action_table[a].verb);
2685
2686 return -EPERM;
2687 #else
2688 return 0;
2689 #endif
2690 }
2691
2692 static int start_special(sd_bus *bus, char **args) {
2693 enum action a;
2694 int r;
2695
2696 assert(args);
2697
2698 a = verb_to_action(args[0]);
2699
2700 r = check_inhibitors(bus, a);
2701 if (r < 0)
2702 return r;
2703
2704 if (arg_force >= 2 && geteuid() != 0) {
2705 log_error("Must be root.");
2706 return -EPERM;
2707 }
2708
2709 if (arg_force >= 2 &&
2710 (a == ACTION_HALT ||
2711 a == ACTION_POWEROFF ||
2712 a == ACTION_REBOOT))
2713 return halt_now(a);
2714
2715 if (arg_force >= 1 &&
2716 (a == ACTION_HALT ||
2717 a == ACTION_POWEROFF ||
2718 a == ACTION_REBOOT ||
2719 a == ACTION_KEXEC ||
2720 a == ACTION_EXIT))
2721 return daemon_reload(bus, args);
2722
2723 /* first try logind, to allow authentication with polkit */
2724 if (geteuid() != 0 &&
2725 (a == ACTION_POWEROFF ||
2726 a == ACTION_REBOOT ||
2727 a == ACTION_SUSPEND ||
2728 a == ACTION_HIBERNATE ||
2729 a == ACTION_HYBRID_SLEEP)) {
2730 r = reboot_with_logind(bus, a);
2731 if (r >= 0)
2732 return r;
2733 }
2734
2735 r = start_unit(bus, args);
2736 if (r == EXIT_SUCCESS)
2737 warn_wall(a);
2738
2739 return r;
2740 }
2741
2742 static int check_unit_generic(sd_bus *bus, int code, const char *good_states, char **args) {
2743 _cleanup_strv_free_ char **names = NULL;
2744 char **name;
2745 int r;
2746
2747 assert(bus);
2748 assert(args);
2749
2750 r = expand_names(bus, args, NULL, &names);
2751 if (r < 0) {
2752 log_error("Failed to expand names: %s", strerror(-r));
2753 return r;
2754 }
2755
2756 STRV_FOREACH(name, names) {
2757 int state;
2758
2759 state = check_one_unit(bus, *name, good_states, arg_quiet);
2760 if (state < 0)
2761 return state;
2762 if (state == 0)
2763 r = code;
2764 }
2765
2766 return r;
2767 }
2768
2769 static int check_unit_active(sd_bus *bus, char **args) {
2770 /* According to LSB: 3, "program is not running" */
2771 return check_unit_generic(bus, 3, "active\0reloading\0", args + 1);
2772 }
2773
2774 static int check_unit_failed(sd_bus *bus, char **args) {
2775 return check_unit_generic(bus, 1, "failed\0", args + 1);
2776 }
2777
2778 static int kill_unit(sd_bus *bus, char **args) {
2779 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2780 _cleanup_strv_free_ char **names = NULL;
2781 char **name;
2782 int r, q;
2783
2784 assert(bus);
2785 assert(args);
2786
2787 if (!arg_kill_who)
2788 arg_kill_who = "all";
2789
2790 r = expand_names(bus, args + 1, NULL, &names);
2791 if (r < 0)
2792 log_error("Failed to expand names: %s", strerror(-r));
2793
2794 STRV_FOREACH(name, names) {
2795 q = sd_bus_call_method(
2796 bus,
2797 "org.freedesktop.systemd1",
2798 "/org/freedesktop/systemd1",
2799 "org.freedesktop.systemd1.Manager",
2800 "KillUnit",
2801 &error,
2802 NULL,
2803 "ssi", *names, arg_kill_who, arg_signal);
2804 if (q < 0) {
2805 log_error("Failed to kill unit %s: %s",
2806 *names, bus_error_message(&error, r));
2807 if (r == 0)
2808 r = q;
2809 }
2810 }
2811
2812 return r;
2813 }
2814
2815 typedef struct ExecStatusInfo {
2816 char *name;
2817
2818 char *path;
2819 char **argv;
2820
2821 bool ignore;
2822
2823 usec_t start_timestamp;
2824 usec_t exit_timestamp;
2825 pid_t pid;
2826 int code;
2827 int status;
2828
2829 LIST_FIELDS(struct ExecStatusInfo, exec);
2830 } ExecStatusInfo;
2831
2832 static void exec_status_info_free(ExecStatusInfo *i) {
2833 assert(i);
2834
2835 free(i->name);
2836 free(i->path);
2837 strv_free(i->argv);
2838 free(i);
2839 }
2840
2841 static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
2842 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2843 const char *path;
2844 uint32_t pid;
2845 int32_t code, status;
2846 int ignore, r;
2847
2848 assert(m);
2849 assert(i);
2850
2851 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
2852 if (r < 0)
2853 return bus_log_parse_error(r);
2854 else if (r == 0)
2855 return 0;
2856
2857 r = sd_bus_message_read(m, "s", &path);
2858 if (r < 0)
2859 return bus_log_parse_error(r);
2860
2861 i->path = strdup(path);
2862 if (!i->path)
2863 return log_oom();
2864
2865 r = sd_bus_message_read_strv(m, &i->argv);
2866 if (r < 0)
2867 return bus_log_parse_error(r);
2868
2869 r = sd_bus_message_read(m,
2870 "bttttuii",
2871 &ignore,
2872 &start_timestamp, &start_timestamp_monotonic,
2873 &exit_timestamp, &exit_timestamp_monotonic,
2874 &pid,
2875 &code, &status);
2876 if (r < 0)
2877 return bus_log_parse_error(r);
2878
2879 i->ignore = ignore;
2880 i->start_timestamp = (usec_t) start_timestamp;
2881 i->exit_timestamp = (usec_t) exit_timestamp;
2882 i->pid = (pid_t) pid;
2883 i->code = code;
2884 i->status = status;
2885
2886 r = sd_bus_message_exit_container(m);
2887 if (r < 0)
2888 return bus_log_parse_error(r);
2889
2890 return 1;
2891 }
2892
2893 typedef struct UnitStatusInfo {
2894 const char *id;
2895 const char *load_state;
2896 const char *active_state;
2897 const char *sub_state;
2898 const char *unit_file_state;
2899
2900 const char *description;
2901 const char *following;
2902
2903 char **documentation;
2904
2905 const char *fragment_path;
2906 const char *source_path;
2907 const char *control_group;
2908
2909 char **dropin_paths;
2910
2911 const char *load_error;
2912 const char *result;
2913
2914 usec_t inactive_exit_timestamp;
2915 usec_t inactive_exit_timestamp_monotonic;
2916 usec_t active_enter_timestamp;
2917 usec_t active_exit_timestamp;
2918 usec_t inactive_enter_timestamp;
2919
2920 bool need_daemon_reload;
2921
2922 /* Service */
2923 pid_t main_pid;
2924 pid_t control_pid;
2925 const char *status_text;
2926 const char *pid_file;
2927 bool running:1;
2928
2929 usec_t start_timestamp;
2930 usec_t exit_timestamp;
2931
2932 int exit_code, exit_status;
2933
2934 usec_t condition_timestamp;
2935 bool condition_result;
2936 bool failed_condition_trigger;
2937 bool failed_condition_negate;
2938 const char *failed_condition;
2939 const char *failed_condition_param;
2940
2941 /* Socket */
2942 unsigned n_accepted;
2943 unsigned n_connections;
2944 bool accept;
2945
2946 /* Pairs of type, path */
2947 char **listen;
2948
2949 /* Device */
2950 const char *sysfs_path;
2951
2952 /* Mount, Automount */
2953 const char *where;
2954
2955 /* Swap */
2956 const char *what;
2957
2958 LIST_HEAD(ExecStatusInfo, exec);
2959 } UnitStatusInfo;
2960
2961 static void print_status_info(
2962 UnitStatusInfo *i,
2963 bool *ellipsized) {
2964
2965 ExecStatusInfo *p;
2966 const char *active_on, *active_off, *on, *off, *ss;
2967 usec_t timestamp;
2968 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2969 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2970 const char *path;
2971 int flags =
2972 arg_all * OUTPUT_SHOW_ALL |
2973 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2974 on_tty() * OUTPUT_COLOR |
2975 !arg_quiet * OUTPUT_WARN_CUTOFF |
2976 arg_full * OUTPUT_FULL_WIDTH;
2977 char **t, **t2;
2978
2979 assert(i);
2980
2981 /* This shows pretty information about a unit. See
2982 * print_property() for a low-level property printer */
2983
2984 if (streq_ptr(i->active_state, "failed")) {
2985 active_on = ansi_highlight_red();
2986 active_off = ansi_highlight_off();
2987 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2988 active_on = ansi_highlight_green();
2989 active_off = ansi_highlight_off();
2990 } else
2991 active_on = active_off = "";
2992
2993 printf("%s%s%s%s", active_on, draw_special_char(DRAW_BLACK_CIRCLE), active_off, strna(i->id));
2994
2995 if (i->description && !streq_ptr(i->id, i->description))
2996 printf(" - %s", i->description);
2997
2998 printf("\n");
2999
3000 if (i->following)
3001 printf(" Follow: unit currently follows state of %s\n", i->following);
3002
3003 if (streq_ptr(i->load_state, "error")) {
3004 on = ansi_highlight_red();
3005 off = ansi_highlight_off();
3006 } else
3007 on = off = "";
3008
3009 path = i->source_path ? i->source_path : i->fragment_path;
3010
3011 if (i->load_error)
3012 printf(" Loaded: %s%s%s (Reason: %s)\n",
3013 on, strna(i->load_state), off, i->load_error);
3014 else if (path && i->unit_file_state)
3015 printf(" Loaded: %s%s%s (%s; %s)\n",
3016 on, strna(i->load_state), off, path, i->unit_file_state);
3017 else if (path)
3018 printf(" Loaded: %s%s%s (%s)\n",
3019 on, strna(i->load_state), off, path);
3020 else
3021 printf(" Loaded: %s%s%s\n",
3022 on, strna(i->load_state), off);
3023
3024 if (!strv_isempty(i->dropin_paths)) {
3025 _cleanup_free_ char *dir = NULL;
3026 bool last = false;
3027 char ** dropin;
3028
3029 STRV_FOREACH(dropin, i->dropin_paths) {
3030 if (! dir || last) {
3031 printf(dir ? " " : " Drop-In: ");
3032
3033 free(dir);
3034 dir = NULL;
3035
3036 if (path_get_parent(*dropin, &dir) < 0) {
3037 log_oom();
3038 return;
3039 }
3040
3041 printf("%s\n %s", dir,
3042 draw_special_char(DRAW_TREE_RIGHT));
3043 }
3044
3045 last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
3046
3047 printf("%s%s", basename(*dropin), last ? "\n" : ", ");
3048 }
3049 }
3050
3051 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
3052 if (ss)
3053 printf(" Active: %s%s (%s)%s",
3054 active_on, strna(i->active_state), ss, active_off);
3055 else
3056 printf(" Active: %s%s%s",
3057 active_on, strna(i->active_state), active_off);
3058
3059 if (!isempty(i->result) && !streq(i->result, "success"))
3060 printf(" (Result: %s)", i->result);
3061
3062 timestamp = (streq_ptr(i->active_state, "active") ||
3063 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
3064 (streq_ptr(i->active_state, "inactive") ||
3065 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
3066 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
3067 i->active_exit_timestamp;
3068
3069 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
3070 s2 = format_timestamp(since2, sizeof(since2), timestamp);
3071
3072 if (s1)
3073 printf(" since %s; %s\n", s2, s1);
3074 else if (s2)
3075 printf(" since %s\n", s2);
3076 else
3077 printf("\n");
3078
3079 if (!i->condition_result && i->condition_timestamp > 0) {
3080 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
3081 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
3082
3083 printf(" start condition failed at %s%s%s\n",
3084 s2, s1 ? "; " : "", s1 ? s1 : "");
3085 if (i->failed_condition_trigger)
3086 printf(" none of the trigger conditions were met\n");
3087 else if (i->failed_condition)
3088 printf(" %s=%s%s was not met\n",
3089 i->failed_condition,
3090 i->failed_condition_negate ? "!" : "",
3091 i->failed_condition_param);
3092 }
3093
3094 if (i->sysfs_path)
3095 printf(" Device: %s\n", i->sysfs_path);
3096 if (i->where)
3097 printf(" Where: %s\n", i->where);
3098 if (i->what)
3099 printf(" What: %s\n", i->what);
3100
3101 STRV_FOREACH(t, i->documentation)
3102 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
3103
3104 STRV_FOREACH_PAIR(t, t2, i->listen)
3105 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
3106
3107 if (i->accept)
3108 printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
3109
3110 LIST_FOREACH(exec, p, i->exec) {
3111 _cleanup_free_ char *argv = NULL;
3112 bool good;
3113
3114 /* Only show exited processes here */
3115 if (p->code == 0)
3116 continue;
3117
3118 argv = strv_join(p->argv, " ");
3119 printf(" Process: %u %s=%s ", p->pid, p->name, strna(argv));
3120
3121 good = is_clean_exit_lsb(p->code, p->status, NULL);
3122 if (!good) {
3123 on = ansi_highlight_red();
3124 off = ansi_highlight_off();
3125 } else
3126 on = off = "";
3127
3128 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
3129
3130 if (p->code == CLD_EXITED) {
3131 const char *c;
3132
3133 printf("status=%i", p->status);
3134
3135 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
3136 if (c)
3137 printf("/%s", c);
3138
3139 } else
3140 printf("signal=%s", signal_to_string(p->status));
3141
3142 printf(")%s\n", off);
3143
3144 if (i->main_pid == p->pid &&
3145 i->start_timestamp == p->start_timestamp &&
3146 i->exit_timestamp == p->start_timestamp)
3147 /* Let's not show this twice */
3148 i->main_pid = 0;
3149
3150 if (p->pid == i->control_pid)
3151 i->control_pid = 0;
3152 }
3153
3154 if (i->main_pid > 0 || i->control_pid > 0) {
3155 if (i->main_pid > 0) {
3156 printf(" Main PID: %u", (unsigned) i->main_pid);
3157
3158 if (i->running) {
3159 _cleanup_free_ char *comm = NULL;
3160 get_process_comm(i->main_pid, &comm);
3161 if (comm)
3162 printf(" (%s)", comm);
3163 } else if (i->exit_code > 0) {
3164 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
3165
3166 if (i->exit_code == CLD_EXITED) {
3167 const char *c;
3168
3169 printf("status=%i", i->exit_status);
3170
3171 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
3172 if (c)
3173 printf("/%s", c);
3174
3175 } else
3176 printf("signal=%s", signal_to_string(i->exit_status));
3177 printf(")");
3178 }
3179
3180 if (i->control_pid > 0)
3181 printf(";");
3182 }
3183
3184 if (i->control_pid > 0) {
3185 _cleanup_free_ char *c = NULL;
3186
3187 printf(" %8s: %u", i->main_pid ? "" : " Control", (unsigned) i->control_pid);
3188
3189 get_process_comm(i->control_pid, &c);
3190 if (c)
3191 printf(" (%s)", c);
3192 }
3193
3194 printf("\n");
3195 }
3196
3197 if (i->status_text)
3198 printf(" Status: \"%s\"\n", i->status_text);
3199
3200 if (i->control_group &&
3201 (i->main_pid > 0 || i->control_pid > 0 ||
3202 ((arg_transport != BUS_TRANSPORT_LOCAL && arg_transport != BUS_TRANSPORT_CONTAINER) || cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, i->control_group, false) == 0))) {
3203 unsigned c;
3204
3205 printf(" CGroup: %s\n", i->control_group);
3206
3207 if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_CONTAINER) {
3208 unsigned k = 0;
3209 pid_t extra[2];
3210 static const char prefix[] = " ";
3211
3212 c = columns();
3213 if (c > sizeof(prefix) - 1)
3214 c -= sizeof(prefix) - 1;
3215 else
3216 c = 0;
3217
3218 if (i->main_pid > 0)
3219 extra[k++] = i->main_pid;
3220
3221 if (i->control_pid > 0)
3222 extra[k++] = i->control_pid;
3223
3224 show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, false, extra, k, flags);
3225 }
3226 }
3227
3228 if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) {
3229 printf("\n");
3230 show_journal_by_unit(stdout,
3231 i->id,
3232 arg_output,
3233 0,
3234 i->inactive_exit_timestamp_monotonic,
3235 arg_lines,
3236 getuid(),
3237 flags,
3238 arg_scope == UNIT_FILE_SYSTEM,
3239 ellipsized);
3240 }
3241
3242 if (i->need_daemon_reload)
3243 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %sdaemon-reload' recommended.\n",
3244 ansi_highlight_red(),
3245 ansi_highlight_off(),
3246 arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
3247 }
3248
3249 static void show_unit_help(UnitStatusInfo *i) {
3250 char **p;
3251
3252 assert(i);
3253
3254 if (!i->documentation) {
3255 log_info("Documentation for %s not known.", i->id);
3256 return;
3257 }
3258
3259 STRV_FOREACH(p, i->documentation) {
3260
3261 if (startswith(*p, "man:")) {
3262 const char *args[4] = { "man", NULL, NULL, NULL };
3263 _cleanup_free_ char *page = NULL, *section = NULL;
3264 char *e = NULL;
3265 pid_t pid;
3266 size_t k;
3267
3268 k = strlen(*p);
3269
3270 if ((*p)[k-1] == ')')
3271 e = strrchr(*p, '(');
3272
3273 if (e) {
3274 page = strndup((*p) + 4, e - *p - 4);
3275 section = strndup(e + 1, *p + k - e - 2);
3276 if (!page || !section) {
3277 log_oom();
3278 return;
3279 }
3280
3281 args[1] = section;
3282 args[2] = page;
3283 } else
3284 args[1] = *p + 4;
3285
3286 pid = fork();
3287 if (pid < 0) {
3288 log_error("Failed to fork: %m");
3289 continue;
3290 }
3291
3292 if (pid == 0) {
3293 /* Child */
3294 execvp(args[0], (char**) args);
3295 log_error("Failed to execute man: %m");
3296 _exit(EXIT_FAILURE);
3297 }
3298
3299 wait_for_terminate(pid, NULL);
3300 } else
3301 log_info("Can't show: %s", *p);
3302 }
3303 }
3304
3305 static int status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) {
3306 int r;
3307
3308 assert(name);
3309 assert(m);
3310 assert(i);
3311
3312 switch (contents[0]) {
3313
3314 case SD_BUS_TYPE_STRING: {
3315 const char *s;
3316
3317 r = sd_bus_message_read(m, "s", &s);
3318 if (r < 0)
3319 return bus_log_parse_error(r);
3320
3321 if (!isempty(s)) {
3322 if (streq(name, "Id"))
3323 i->id = s;
3324 else if (streq(name, "LoadState"))
3325 i->load_state = s;
3326 else if (streq(name, "ActiveState"))
3327 i->active_state = s;
3328 else if (streq(name, "SubState"))
3329 i->sub_state = s;
3330 else if (streq(name, "Description"))
3331 i->description = s;
3332 else if (streq(name, "FragmentPath"))
3333 i->fragment_path = s;
3334 else if (streq(name, "SourcePath"))
3335 i->source_path = s;
3336 #ifndef NOLEGACY
3337 else if (streq(name, "DefaultControlGroup")) {
3338 const char *e;
3339 e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
3340 if (e)
3341 i->control_group = e;
3342 }
3343 #endif
3344 else if (streq(name, "ControlGroup"))
3345 i->control_group = s;
3346 else if (streq(name, "StatusText"))
3347 i->status_text = s;
3348 else if (streq(name, "PIDFile"))
3349 i->pid_file = s;
3350 else if (streq(name, "SysFSPath"))
3351 i->sysfs_path = s;
3352 else if (streq(name, "Where"))
3353 i->where = s;
3354 else if (streq(name, "What"))
3355 i->what = s;
3356 else if (streq(name, "Following"))
3357 i->following = s;
3358 else if (streq(name, "UnitFileState"))
3359 i->unit_file_state = s;
3360 else if (streq(name, "Result"))
3361 i->result = s;
3362 }
3363
3364 break;
3365 }
3366
3367 case SD_BUS_TYPE_BOOLEAN: {
3368 int b;
3369
3370 r = sd_bus_message_read(m, "b", &b);
3371 if (r < 0)
3372 return bus_log_parse_error(r);
3373
3374 if (streq(name, "Accept"))
3375 i->accept = b;
3376 else if (streq(name, "NeedDaemonReload"))
3377 i->need_daemon_reload = b;
3378 else if (streq(name, "ConditionResult"))
3379 i->condition_result = b;
3380
3381 break;
3382 }
3383
3384 case SD_BUS_TYPE_UINT32: {
3385 uint32_t u;
3386
3387 r = sd_bus_message_read(m, "u", &u);
3388 if (r < 0)
3389 return bus_log_parse_error(r);
3390
3391 if (streq(name, "MainPID")) {
3392 if (u > 0) {
3393 i->main_pid = (pid_t) u;
3394 i->running = true;
3395 }
3396 } else if (streq(name, "ControlPID"))
3397 i->control_pid = (pid_t) u;
3398 else if (streq(name, "ExecMainPID")) {
3399 if (u > 0)
3400 i->main_pid = (pid_t) u;
3401 } else if (streq(name, "NAccepted"))
3402 i->n_accepted = u;
3403 else if (streq(name, "NConnections"))
3404 i->n_connections = u;
3405
3406 break;
3407 }
3408
3409 case SD_BUS_TYPE_INT32: {
3410 int32_t j;
3411
3412 r = sd_bus_message_read(m, "i", &j);
3413 if (r < 0)
3414 return bus_log_parse_error(r);
3415
3416 if (streq(name, "ExecMainCode"))
3417 i->exit_code = (int) j;
3418 else if (streq(name, "ExecMainStatus"))
3419 i->exit_status = (int) j;
3420
3421 break;
3422 }
3423
3424 case SD_BUS_TYPE_UINT64: {
3425 uint64_t u;
3426
3427 r = sd_bus_message_read(m, "t", &u);
3428 if (r < 0)
3429 return bus_log_parse_error(r);
3430
3431 if (streq(name, "ExecMainStartTimestamp"))
3432 i->start_timestamp = (usec_t) u;
3433 else if (streq(name, "ExecMainExitTimestamp"))
3434 i->exit_timestamp = (usec_t) u;
3435 else if (streq(name, "ActiveEnterTimestamp"))
3436 i->active_enter_timestamp = (usec_t) u;
3437 else if (streq(name, "InactiveEnterTimestamp"))
3438 i->inactive_enter_timestamp = (usec_t) u;
3439 else if (streq(name, "InactiveExitTimestamp"))
3440 i->inactive_exit_timestamp = (usec_t) u;
3441 else if (streq(name, "InactiveExitTimestampMonotonic"))
3442 i->inactive_exit_timestamp_monotonic = (usec_t) u;
3443 else if (streq(name, "ActiveExitTimestamp"))
3444 i->active_exit_timestamp = (usec_t) u;
3445 else if (streq(name, "ConditionTimestamp"))
3446 i->condition_timestamp = (usec_t) u;
3447
3448 break;
3449 }
3450
3451 case SD_BUS_TYPE_ARRAY:
3452
3453 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3454 _cleanup_free_ ExecStatusInfo *info = NULL;
3455
3456 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3457 if (r < 0)
3458 return bus_log_parse_error(r);
3459
3460 info = new0(ExecStatusInfo, 1);
3461 if (!info)
3462 return log_oom();
3463
3464 while ((r = exec_status_info_deserialize(m, info)) > 0) {
3465
3466 info->name = strdup(name);
3467 if (!info->name)
3468 log_oom();
3469
3470 LIST_PREPEND(exec, i->exec, info);
3471
3472 info = new0(ExecStatusInfo, 1);
3473 if (!info)
3474 log_oom();
3475 }
3476
3477 if (r < 0)
3478 return bus_log_parse_error(r);
3479
3480 r = sd_bus_message_exit_container(m);
3481 if (r < 0)
3482 return bus_log_parse_error(r);
3483
3484 return 0;
3485
3486 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3487 const char *type, *path;
3488
3489 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3490 if (r < 0)
3491 return bus_log_parse_error(r);
3492
3493 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) {
3494
3495 r = strv_extend(&i->listen, type);
3496 if (r < 0)
3497 return r;
3498
3499 r = strv_extend(&i->listen, path);
3500 if (r < 0)
3501 return r;
3502 }
3503 if (r < 0)
3504 return bus_log_parse_error(r);
3505
3506 r = sd_bus_message_exit_container(m);
3507 if (r < 0)
3508 return bus_log_parse_error(r);
3509
3510 return 0;
3511
3512 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "DropInPaths")) {
3513
3514 r = sd_bus_message_read_strv(m, &i->dropin_paths);
3515 if (r < 0)
3516 return bus_log_parse_error(r);
3517
3518 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Documentation")) {
3519
3520 r = sd_bus_message_read_strv(m, &i->documentation);
3521 if (r < 0)
3522 return bus_log_parse_error(r);
3523
3524 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Conditions")) {
3525 const char *cond, *param;
3526 int trigger, negate;
3527 int32_t state;
3528
3529 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
3530 if (r < 0)
3531 return bus_log_parse_error(r);
3532
3533 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
3534 log_debug("%s %d %d %s %d", cond, trigger, negate, param, state);
3535 if (state < 0 && (!trigger || !i->failed_condition)) {
3536 i->failed_condition = cond;
3537 i->failed_condition_trigger = trigger;
3538 i->failed_condition_negate = negate;
3539 i->failed_condition_param = param;
3540 }
3541 }
3542 if (r < 0)
3543 return bus_log_parse_error(r);
3544
3545 r = sd_bus_message_exit_container(m);
3546 if (r < 0)
3547 return bus_log_parse_error(r);
3548
3549 } else
3550 goto skip;
3551
3552 break;
3553
3554 case SD_BUS_TYPE_STRUCT_BEGIN:
3555
3556 if (streq(name, "LoadError")) {
3557 const char *n, *message;
3558
3559 r = sd_bus_message_read(m, "(ss)", &n, &message);
3560 if (r < 0)
3561 return bus_log_parse_error(r);
3562
3563 if (!isempty(message))
3564 i->load_error = message;
3565 } else
3566 goto skip;
3567
3568 break;
3569
3570 default:
3571 goto skip;
3572 }
3573
3574 return 0;
3575
3576 skip:
3577 r = sd_bus_message_skip(m, contents);
3578 if (r < 0)
3579 return bus_log_parse_error(r);
3580
3581 return 0;
3582 }
3583
3584 static int print_property(const char *name, sd_bus_message *m, const char *contents) {
3585 int r;
3586
3587 assert(name);
3588 assert(m);
3589
3590 /* This is a low-level property printer, see
3591 * print_status_info() for the nicer output */
3592
3593 if (arg_properties && !strv_find(arg_properties, name)) {
3594 /* skip what we didn't read */
3595 r = sd_bus_message_skip(m, contents);
3596 return r;
3597 }
3598
3599 switch (contents[0]) {
3600
3601 case SD_BUS_TYPE_STRUCT_BEGIN:
3602
3603 if (contents[1] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) {
3604 uint32_t u;
3605
3606 r = sd_bus_message_read(m, "(uo)", &u, NULL);
3607 if (r < 0)
3608 return bus_log_parse_error(r);
3609
3610 if (u > 0)
3611 printf("%s=%u\n", name, (unsigned) u);
3612 else if (arg_all)
3613 printf("%s=\n", name);
3614
3615 return 0;
3616
3617 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Unit")) {
3618 const char *s;
3619
3620 r = sd_bus_message_read(m, "(so)", &s, NULL);
3621 if (r < 0)
3622 return bus_log_parse_error(r);
3623
3624 if (arg_all || !isempty(s))
3625 printf("%s=%s\n", name, s);
3626
3627 return 0;
3628
3629 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) {
3630 const char *a = NULL, *b = NULL;
3631
3632 r = sd_bus_message_read(m, "(ss)", &a, &b);
3633 if (r < 0)
3634 return bus_log_parse_error(r);
3635
3636 if (arg_all || !isempty(a) || !isempty(b))
3637 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
3638
3639 return 0;
3640 } else if (streq_ptr(name, "SystemCallFilter")) {
3641 _cleanup_strv_free_ char **l = NULL;
3642 int whitelist;
3643
3644 r = sd_bus_message_enter_container(m, 'r', "bas");
3645 if (r < 0)
3646 return bus_log_parse_error(r);
3647
3648 r = sd_bus_message_read(m, "b", &whitelist);
3649 if (r < 0)
3650 return bus_log_parse_error(r);
3651
3652 r = sd_bus_message_read_strv(m, &l);
3653 if (r < 0)
3654 return bus_log_parse_error(r);
3655
3656 r = sd_bus_message_exit_container(m);
3657 if (r < 0)
3658 return bus_log_parse_error(r);
3659
3660 if (arg_all || whitelist || !strv_isempty(l)) {
3661 bool first = true;
3662 char **i;
3663
3664 fputs(name, stdout);
3665 fputc('=', stdout);
3666
3667 if (!whitelist)
3668 fputc('~', stdout);
3669
3670 STRV_FOREACH(i, l) {
3671 if (first)
3672 first = false;
3673 else
3674 fputc(' ', stdout);
3675
3676 fputs(*i, stdout);
3677 }
3678 fputc('\n', stdout);
3679 }
3680
3681 return 0;
3682 }
3683
3684 break;
3685
3686 case SD_BUS_TYPE_ARRAY:
3687
3688 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) {
3689 const char *path;
3690 int ignore;
3691
3692 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)");
3693 if (r < 0)
3694 return bus_log_parse_error(r);
3695
3696 while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0)
3697 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
3698
3699 if (r < 0)
3700 return bus_log_parse_error(r);
3701
3702 r = sd_bus_message_exit_container(m);
3703 if (r < 0)
3704 return bus_log_parse_error(r);
3705
3706 return 0;
3707
3708 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) {
3709 const char *type, *path;
3710
3711 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3712 if (r < 0)
3713 return bus_log_parse_error(r);
3714
3715 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3716 printf("%s=%s\n", type, path);
3717 if (r < 0)
3718 return bus_log_parse_error(r);
3719
3720 r = sd_bus_message_exit_container(m);
3721 if (r < 0)
3722 return bus_log_parse_error(r);
3723
3724 return 0;
3725
3726 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3727 const char *type, *path;
3728
3729 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3730 if (r < 0)
3731 return bus_log_parse_error(r);
3732
3733 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3734 printf("Listen%s=%s\n", type, path);
3735 if (r < 0)
3736 return bus_log_parse_error(r);
3737
3738 r = sd_bus_message_exit_container(m);
3739 if (r < 0)
3740 return bus_log_parse_error(r);
3741
3742 return 0;
3743
3744 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Timers")) {
3745 const char *base;
3746 uint64_t value, next_elapse;
3747
3748 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)");
3749 if (r < 0)
3750 return bus_log_parse_error(r);
3751
3752 while ((r = sd_bus_message_read(m, "(stt)", &base, &value, &next_elapse)) > 0) {
3753 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3754
3755 printf("%s={ value=%s ; next_elapse=%s }\n",
3756 base,
3757 format_timespan(timespan1, sizeof(timespan1), value, 0),
3758 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
3759 }
3760 if (r < 0)
3761 return bus_log_parse_error(r);
3762
3763 r = sd_bus_message_exit_container(m);
3764 if (r < 0)
3765 return bus_log_parse_error(r);
3766
3767 return 0;
3768
3769 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3770 ExecStatusInfo info = {};
3771
3772 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3773 if (r < 0)
3774 return bus_log_parse_error(r);
3775
3776 while ((r = exec_status_info_deserialize(m, &info)) > 0) {
3777 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3778 _cleanup_free_ char *tt;
3779
3780 tt = strv_join(info.argv, " ");
3781
3782 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3783 name,
3784 strna(info.path),
3785 strna(tt),
3786 yes_no(info.ignore),
3787 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3788 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3789 (unsigned) info. pid,
3790 sigchld_code_to_string(info.code),
3791 info.status,
3792 info.code == CLD_EXITED ? "" : "/",
3793 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3794
3795 free(info.path);
3796 strv_free(info.argv);
3797 zero(info);
3798 }
3799
3800 r = sd_bus_message_exit_container(m);
3801 if (r < 0)
3802 return bus_log_parse_error(r);
3803
3804 return 0;
3805
3806 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) {
3807 const char *path, *rwm;
3808
3809 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3810 if (r < 0)
3811 return bus_log_parse_error(r);
3812
3813 while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0)
3814 printf("%s=%s %s\n", name, strna(path), strna(rwm));
3815 if (r < 0)
3816 return bus_log_parse_error(r);
3817
3818 r = sd_bus_message_exit_container(m);
3819 if (r < 0)
3820 return bus_log_parse_error(r);
3821
3822 return 0;
3823
3824 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "BlockIODeviceWeight")) {
3825 const char *path;
3826 uint64_t weight;
3827
3828 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3829 if (r < 0)
3830 return bus_log_parse_error(r);
3831
3832 while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0)
3833 printf("%s=%s %" PRIu64 "\n", name, strna(path), weight);
3834 if (r < 0)
3835 return bus_log_parse_error(r);
3836
3837 r = sd_bus_message_exit_container(m);
3838 if (r < 0)
3839 return bus_log_parse_error(r);
3840
3841 return 0;
3842
3843 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && (streq(name, "BlockIOReadBandwidth") || streq(name, "BlockIOWriteBandwidth"))) {
3844 const char *path;
3845 uint64_t bandwidth;
3846
3847 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3848 if (r < 0)
3849 return bus_log_parse_error(r);
3850
3851 while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0)
3852 printf("%s=%s %" PRIu64 "\n", name, strna(path), bandwidth);
3853 if (r < 0)
3854 return bus_log_parse_error(r);
3855
3856 r = sd_bus_message_exit_container(m);
3857 if (r < 0)
3858 return bus_log_parse_error(r);
3859
3860 return 0;
3861 }
3862
3863 break;
3864 }
3865
3866 r = bus_print_property(name, m, arg_all);
3867 if (r < 0)
3868 return bus_log_parse_error(r);
3869
3870 if (r == 0) {
3871 r = sd_bus_message_skip(m, contents);
3872 if (r < 0)
3873 return bus_log_parse_error(r);
3874
3875 if (arg_all)
3876 printf("%s=[unprintable]\n", name);
3877 }
3878
3879 return 0;
3880 }
3881
3882 static int show_one(
3883 const char *verb,
3884 sd_bus *bus,
3885 const char *path,
3886 bool show_properties,
3887 bool *new_line,
3888 bool *ellipsized) {
3889
3890 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3891 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3892 UnitStatusInfo info = {};
3893 ExecStatusInfo *p;
3894 int r;
3895
3896 assert(path);
3897 assert(new_line);
3898
3899 log_debug("Showing one %s", path);
3900
3901 r = sd_bus_call_method(
3902 bus,
3903 "org.freedesktop.systemd1",
3904 path,
3905 "org.freedesktop.DBus.Properties",
3906 "GetAll",
3907 &error,
3908 &reply,
3909 "s", "");
3910 if (r < 0) {
3911 log_error("Failed to get properties: %s", bus_error_message(&error, r));
3912 return r;
3913 }
3914
3915 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
3916 if (r < 0)
3917 return bus_log_parse_error(r);
3918
3919 if (*new_line)
3920 printf("\n");
3921
3922 *new_line = true;
3923
3924 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
3925 const char *name, *contents;
3926
3927 r = sd_bus_message_read(reply, "s", &name);
3928 if (r < 0)
3929 return bus_log_parse_error(r);
3930
3931 r = sd_bus_message_peek_type(reply, NULL, &contents);
3932 if (r < 0)
3933 return bus_log_parse_error(r);
3934
3935 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents);
3936 if (r < 0)
3937 return bus_log_parse_error(r);
3938
3939 if (show_properties)
3940 r = print_property(name, reply, contents);
3941 else
3942 r = status_property(name, reply, &info, contents);
3943 if (r < 0)
3944 return r;
3945
3946 r = sd_bus_message_exit_container(reply);
3947 if (r < 0)
3948 return bus_log_parse_error(r);
3949
3950 r = sd_bus_message_exit_container(reply);
3951 if (r < 0)
3952 return bus_log_parse_error(r);
3953 }
3954 if (r < 0)
3955 return bus_log_parse_error(r);
3956
3957 r = sd_bus_message_exit_container(reply);
3958 if (r < 0)
3959 return bus_log_parse_error(r);
3960
3961 r = 0;
3962
3963 if (!show_properties) {
3964 if (streq(verb, "help"))
3965 show_unit_help(&info);
3966 else
3967 print_status_info(&info, ellipsized);
3968 }
3969
3970 strv_free(info.documentation);
3971 strv_free(info.dropin_paths);
3972 strv_free(info.listen);
3973
3974 if (!streq_ptr(info.active_state, "active") &&
3975 !streq_ptr(info.active_state, "reloading") &&
3976 streq(verb, "status")) {
3977 /* According to LSB: "program not running" */
3978 /* 0: program is running or service is OK
3979 * 1: program is dead and /run PID file exists
3980 * 2: program is dead and /run/lock lock file exists
3981 * 3: program is not running
3982 * 4: program or service status is unknown
3983 */
3984 if (info.pid_file && access(info.pid_file, F_OK) == 0)
3985 r = 1;
3986 else
3987 r = 3;
3988 }
3989
3990 while ((p = info.exec)) {
3991 LIST_REMOVE(exec, info.exec, p);
3992 exec_status_info_free(p);
3993 }
3994
3995 return r;
3996 }
3997
3998 static int get_unit_dbus_path_by_pid(
3999 sd_bus *bus,
4000 uint32_t pid,
4001 char **unit) {
4002
4003 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4004 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4005 char *u;
4006 int r;
4007
4008 r = sd_bus_call_method(
4009 bus,
4010 "org.freedesktop.systemd1",
4011 "/org/freedesktop/systemd1",
4012 "org.freedesktop.systemd1.Manager",
4013 "GetUnitByPID",
4014 &error,
4015 &reply,
4016 "u", pid);
4017 if (r < 0) {
4018 log_error("Failed to get unit for PID %lu: %s", (unsigned long) pid, bus_error_message(&error, r));
4019 return r;
4020 }
4021
4022 r = sd_bus_message_read(reply, "o", &u);
4023 if (r < 0)
4024 return bus_log_parse_error(r);
4025
4026 u = strdup(u);
4027 if (!u)
4028 return log_oom();
4029
4030 *unit = u;
4031 return 0;
4032 }
4033
4034 static int show_all(
4035 const char* verb,
4036 sd_bus *bus,
4037 bool show_properties,
4038 bool *new_line,
4039 bool *ellipsized) {
4040
4041 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4042 _cleanup_free_ UnitInfo *unit_infos = NULL;
4043 const UnitInfo *u;
4044 unsigned c;
4045 int r;
4046
4047 r = get_unit_list(bus, &reply, &unit_infos, NULL);
4048 if (r < 0)
4049 return r;
4050
4051 pager_open_if_enabled();
4052
4053 c = (unsigned) r;
4054
4055 qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
4056
4057 for (u = unit_infos; u < unit_infos + c; u++) {
4058 _cleanup_free_ char *p = NULL;
4059
4060 p = unit_dbus_path_from_name(u->id);
4061 if (!p)
4062 return log_oom();
4063
4064 r = show_one(verb, bus, p, show_properties, new_line, ellipsized);
4065 if (r != 0)
4066 return r;
4067 }
4068
4069 return 0;
4070 }
4071
4072 static int cat(sd_bus *bus, char **args) {
4073 _cleanup_free_ char *unit = NULL;
4074 _cleanup_strv_free_ char **names = NULL;
4075 char **name;
4076 bool first = true;
4077 int r = 0;
4078
4079 assert(bus);
4080 assert(args);
4081
4082 r = expand_names(bus, args + 1, NULL, &names);
4083 if (r < 0)
4084 log_error("Failed to expand names: %s", strerror(-r));
4085
4086 pager_open_if_enabled();
4087
4088 STRV_FOREACH(name, names) {
4089 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4090 _cleanup_strv_free_ char **dropin_paths = NULL;
4091 _cleanup_free_ char *fragment_path = NULL;
4092 char **path;
4093
4094 unit = unit_dbus_path_from_name(*name);
4095 if (!unit)
4096 return log_oom();
4097
4098 if (need_daemon_reload(bus, *name) > 0)
4099 log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.",
4100 *name, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
4101
4102 r = sd_bus_get_property_string(
4103 bus,
4104 "org.freedesktop.systemd1",
4105 unit,
4106 "org.freedesktop.systemd1.Unit",
4107 "FragmentPath",
4108 &error,
4109 &fragment_path);
4110 if (r < 0) {
4111 log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r));
4112 continue;
4113 }
4114
4115 r = sd_bus_get_property_strv(
4116 bus,
4117 "org.freedesktop.systemd1",
4118 unit,
4119 "org.freedesktop.systemd1.Unit",
4120 "DropInPaths",
4121 &error,
4122 &dropin_paths);
4123 if (r < 0) {
4124 log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r));
4125 continue;
4126 }
4127
4128 if (first)
4129 first = false;
4130 else
4131 puts("");
4132
4133 if (!isempty(fragment_path)) {
4134 printf("%s# %s%s\n",
4135 ansi_highlight_blue(),
4136 fragment_path,
4137 ansi_highlight_off());
4138 fflush(stdout);
4139
4140 r = sendfile_full(STDOUT_FILENO, fragment_path);
4141 if (r < 0) {
4142 log_warning("Failed to cat %s: %s", fragment_path, strerror(-r));
4143 continue;
4144 }
4145 }
4146
4147 STRV_FOREACH(path, dropin_paths) {
4148 printf("%s%s# %s%s\n",
4149 isempty(fragment_path) && path == dropin_paths ? "" : "\n",
4150 ansi_highlight_blue(),
4151 *path,
4152 ansi_highlight_off());
4153 fflush(stdout);
4154
4155 r = sendfile_full(STDOUT_FILENO, *path);
4156 if (r < 0) {
4157 log_warning("Failed to cat %s: %s", *path, strerror(-r));
4158 continue;
4159 }
4160 }
4161 }
4162
4163 return r < 0 ? r : 0;
4164 }
4165
4166 static int show_system_status(sd_bus *bus) {
4167 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], since2[FORMAT_TIMESTAMP_MAX];
4168 _cleanup_free_ char *hn = NULL;
4169 struct machine_info mi = {};
4170 const char *on, *off;
4171 int r;
4172
4173 hn = gethostname_malloc();
4174 if (!hn)
4175 return log_oom();
4176
4177 r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, &mi);
4178 if (r < 0) {
4179 log_error("Failed to read server status: %s", strerror(-r));
4180 return r;
4181 }
4182
4183 if (streq_ptr(mi.state, "degraded")) {
4184 on = ansi_highlight_red();
4185 off = ansi_highlight_off();
4186 } else if (!streq_ptr(mi.state, "running")) {
4187 on = ansi_highlight_yellow();
4188 off = ansi_highlight_off();
4189 } else
4190 on = off = "";
4191
4192 printf("%s%s%s%s\n", on, draw_special_char(DRAW_BLACK_CIRCLE), off, arg_host ? arg_host : hn);
4193
4194 printf(" State: %s%s%s\n",
4195 on, strna(mi.state), off);
4196
4197 printf(" Jobs: %u queued\n", mi.n_jobs);
4198 printf(" Failed: %u units\n", mi.n_failed_units);
4199
4200 printf(" Since: %s; %s\n",
4201 format_timestamp(since2, sizeof(since2), mi.timestamp),
4202 format_timestamp_relative(since1, sizeof(since1), mi.timestamp));
4203
4204 printf(" CGroup: %s\n", mi.control_group ?: "/");
4205 if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_CONTAINER) {
4206 int flags =
4207 arg_all * OUTPUT_SHOW_ALL |
4208 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
4209 on_tty() * OUTPUT_COLOR |
4210 !arg_quiet * OUTPUT_WARN_CUTOFF |
4211 arg_full * OUTPUT_FULL_WIDTH;
4212
4213 static const char prefix[] = " ";
4214 unsigned c;
4215
4216 c = columns();
4217 if (c > sizeof(prefix) - 1)
4218 c -= sizeof(prefix) - 1;
4219 else
4220 c = 0;
4221
4222 show_cgroup(SYSTEMD_CGROUP_CONTROLLER, strempty(mi.control_group), prefix, c, false, flags);
4223 }
4224
4225 free(mi.state);
4226 free(mi.control_group);
4227
4228 return 0;
4229 }
4230
4231 static int show(sd_bus *bus, char **args) {
4232 bool show_properties, show_status, new_line = false;
4233 bool ellipsized = false;
4234 int r, ret = 0;
4235
4236 assert(bus);
4237 assert(args);
4238
4239 show_properties = streq(args[0], "show");
4240 show_status = streq(args[0], "status");
4241
4242 if (show_properties)
4243 pager_open_if_enabled();
4244
4245 /* If no argument is specified inspect the manager itself */
4246
4247 if (show_properties && strv_length(args) <= 1)
4248 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line, &ellipsized);
4249
4250 if (show_status && strv_length(args) <= 1) {
4251
4252 if (arg_all)
4253 pager_open_if_enabled();
4254
4255 show_system_status(bus);
4256 new_line = true;
4257
4258 if (arg_all)
4259 ret = show_all(args[0], bus, false, &new_line, &ellipsized);
4260 } else {
4261 _cleanup_free_ char **patterns = NULL;
4262 char **name;
4263
4264 STRV_FOREACH(name, args + 1) {
4265 _cleanup_free_ char *unit = NULL;
4266 uint32_t id;
4267
4268 if (safe_atou32(*name, &id) < 0) {
4269 if (strv_push(&patterns, *name) < 0)
4270 return log_oom();
4271
4272 continue;
4273 } else if (show_properties) {
4274 /* Interpret as job id */
4275 if (asprintf(&unit, "/org/freedesktop/systemd1/job/%u", id) < 0)
4276 return log_oom();
4277
4278 } else {
4279 /* Interpret as PID */
4280 r = get_unit_dbus_path_by_pid(bus, id, &unit);
4281 if (r < 0) {
4282 ret = r;
4283 continue;
4284 }
4285 }
4286
4287 show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
4288 }
4289
4290 if (!strv_isempty(patterns)) {
4291 _cleanup_strv_free_ char **names = NULL;
4292
4293 r = expand_names(bus, patterns, NULL, &names);
4294 if (r < 0)
4295 log_error("Failed to expand names: %s", strerror(-r));
4296
4297 STRV_FOREACH(name, names) {
4298 _cleanup_free_ char *unit;
4299
4300 unit = unit_dbus_path_from_name(*name);
4301 if (!unit)
4302 return log_oom();
4303
4304 show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
4305 }
4306 }
4307 }
4308
4309 if (ellipsized && !arg_quiet)
4310 printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
4311
4312 return ret;
4313 }
4314
4315 static int set_property(sd_bus *bus, char **args) {
4316 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4317 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4318 _cleanup_free_ char *n = NULL;
4319 char **i;
4320 int r;
4321
4322 r = sd_bus_message_new_method_call(
4323 bus,
4324 &m,
4325 "org.freedesktop.systemd1",
4326 "/org/freedesktop/systemd1",
4327 "org.freedesktop.systemd1.Manager",
4328 "SetUnitProperties");
4329 if (r < 0)
4330 return bus_log_create_error(r);
4331
4332 n = unit_name_mangle(args[1], MANGLE_NOGLOB);
4333 if (!n)
4334 return log_oom();
4335
4336 r = sd_bus_message_append(m, "sb", n, arg_runtime);
4337 if (r < 0)
4338 return bus_log_create_error(r);
4339
4340 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
4341 if (r < 0)
4342 return bus_log_create_error(r);
4343
4344 STRV_FOREACH(i, args + 2) {
4345 r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
4346 if (r < 0)
4347 return bus_log_create_error(r);
4348
4349 r = bus_append_unit_property_assignment(m, *i);
4350 if (r < 0)
4351 return r;
4352
4353 r = sd_bus_message_close_container(m);
4354 if (r < 0)
4355 return bus_log_create_error(r);
4356 }
4357
4358 r = sd_bus_message_close_container(m);
4359 if (r < 0)
4360 return bus_log_create_error(r);
4361
4362 r = sd_bus_call(bus, m, 0, &error, NULL);
4363 if (r < 0) {
4364 log_error("Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
4365 return r;
4366 }
4367
4368 return 0;
4369 }
4370
4371 static int snapshot(sd_bus *bus, char **args) {
4372 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4373 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4374 _cleanup_free_ char *n = NULL, *id = NULL;
4375 const char *path;
4376 int r;
4377
4378 if (strv_length(args) > 1)
4379 n = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".snapshot");
4380 else
4381 n = strdup("");
4382 if (!n)
4383 return log_oom();
4384
4385 r = sd_bus_call_method(
4386 bus,
4387 "org.freedesktop.systemd1",
4388 "/org/freedesktop/systemd1",
4389 "org.freedesktop.systemd1.Manager",
4390 "CreateSnapshot",
4391 &error,
4392 &reply,
4393 "sb", n, false);
4394 if (r < 0) {
4395 log_error("Failed to create snapshot: %s", bus_error_message(&error, r));
4396 return r;
4397 }
4398
4399 r = sd_bus_message_read(reply, "o", &path);
4400 if (r < 0)
4401 return bus_log_parse_error(r);
4402
4403 r = sd_bus_get_property_string(
4404 bus,
4405 "org.freedesktop.systemd1",
4406 path,
4407 "org.freedesktop.systemd1.Unit",
4408 "Id",
4409 &error,
4410 &id);
4411 if (r < 0) {
4412 log_error("Failed to get ID of snapshot: %s", bus_error_message(&error, r));
4413 return r;
4414 }
4415
4416 if (!arg_quiet)
4417 puts(id);
4418
4419 return 0;
4420 }
4421
4422 static int delete_snapshot(sd_bus *bus, char **args) {
4423 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4424 _cleanup_strv_free_ char **names = NULL;
4425 char **name;
4426 int r, q;
4427
4428 assert(args);
4429
4430 r = expand_names(bus, args + 1, ".snapshot", &names);
4431 if (r < 0)
4432 log_error("Failed to expand names: %s", strerror(-r));
4433
4434 STRV_FOREACH(name, names) {
4435 q = sd_bus_call_method(
4436 bus,
4437 "org.freedesktop.systemd1",
4438 "/org/freedesktop/systemd1",
4439 "org.freedesktop.systemd1.Manager",
4440 "RemoveSnapshot",
4441 &error,
4442 NULL,
4443 "s", *name);
4444 if (q < 0) {
4445 log_error("Failed to remove snapshot %s: %s",
4446 *name, bus_error_message(&error, r));
4447 if (r == 0)
4448 r = q;
4449 }
4450 }
4451
4452 return r;
4453 }
4454
4455 static int daemon_reload(sd_bus *bus, char **args) {
4456 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4457 const char *method;
4458 int r;
4459
4460 if (arg_action == ACTION_RELOAD)
4461 method = "Reload";
4462 else if (arg_action == ACTION_REEXEC)
4463 method = "Reexecute";
4464 else {
4465 assert(arg_action == ACTION_SYSTEMCTL);
4466
4467 method =
4468 streq(args[0], "clear-jobs") ||
4469 streq(args[0], "cancel") ? "ClearJobs" :
4470 streq(args[0], "daemon-reexec") ? "Reexecute" :
4471 streq(args[0], "reset-failed") ? "ResetFailed" :
4472 streq(args[0], "halt") ? "Halt" :
4473 streq(args[0], "poweroff") ? "PowerOff" :
4474 streq(args[0], "reboot") ? "Reboot" :
4475 streq(args[0], "kexec") ? "KExec" :
4476 streq(args[0], "exit") ? "Exit" :
4477 /* "daemon-reload" */ "Reload";
4478 }
4479
4480 r = sd_bus_call_method(
4481 bus,
4482 "org.freedesktop.systemd1",
4483 "/org/freedesktop/systemd1",
4484 "org.freedesktop.systemd1.Manager",
4485 method,
4486 &error,
4487 NULL,
4488 NULL);
4489
4490 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
4491 /* There's always a fallback possible for
4492 * legacy actions. */
4493 r = -EADDRNOTAVAIL;
4494 else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute"))
4495 /* On reexecution, we expect a disconnect, not a
4496 * reply */
4497 r = 0;
4498 else if (r < 0)
4499 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4500
4501 return r < 0 ? r : 0;
4502 }
4503
4504 static int reset_failed(sd_bus *bus, char **args) {
4505 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4506 _cleanup_strv_free_ char **names = NULL;
4507 char **name;
4508 int r, q;
4509
4510 if (strv_length(args) <= 1)
4511 return daemon_reload(bus, args);
4512
4513 r = expand_names(bus, args + 1, NULL, &names);
4514 if (r < 0)
4515 log_error("Failed to expand names: %s", strerror(-r));
4516
4517 STRV_FOREACH(name, names) {
4518 q = sd_bus_call_method(
4519 bus,
4520 "org.freedesktop.systemd1",
4521 "/org/freedesktop/systemd1",
4522 "org.freedesktop.systemd1.Manager",
4523 "ResetFailedUnit",
4524 &error,
4525 NULL,
4526 "s", *name);
4527 if (q < 0) {
4528 log_error("Failed to reset failed state of unit %s: %s",
4529 *name, bus_error_message(&error, r));
4530 if (r == 0)
4531 r = q;
4532 }
4533 }
4534
4535 return r;
4536 }
4537
4538 static int show_environment(sd_bus *bus, char **args) {
4539 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4540 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4541 const char *text;
4542 int r;
4543
4544 pager_open_if_enabled();
4545
4546 r = sd_bus_get_property(
4547 bus,
4548 "org.freedesktop.systemd1",
4549 "/org/freedesktop/systemd1",
4550 "org.freedesktop.systemd1.Manager",
4551 "Environment",
4552 &error,
4553 &reply,
4554 "as");
4555 if (r < 0) {
4556 log_error("Failed to get environment: %s", bus_error_message(&error, r));
4557 return r;
4558 }
4559
4560 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
4561 if (r < 0)
4562 return bus_log_parse_error(r);
4563
4564 while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0)
4565 puts(text);
4566 if (r < 0)
4567 return bus_log_parse_error(r);
4568
4569 r = sd_bus_message_exit_container(reply);
4570 if (r < 0)
4571 return bus_log_parse_error(r);
4572
4573 return 0;
4574 }
4575
4576 static int switch_root(sd_bus *bus, char **args) {
4577 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4578 _cleanup_free_ char *cmdline_init = NULL;
4579 const char *root, *init;
4580 unsigned l;
4581 int r;
4582
4583 l = strv_length(args);
4584 if (l < 2 || l > 3) {
4585 log_error("Wrong number of arguments.");
4586 return -EINVAL;
4587 }
4588
4589 root = args[1];
4590
4591 if (l >= 3)
4592 init = args[2];
4593 else {
4594 r = parse_env_file("/proc/cmdline", WHITESPACE,
4595 "init", &cmdline_init,
4596 NULL);
4597 if (r < 0)
4598 log_debug("Failed to parse /proc/cmdline: %s", strerror(-r));
4599
4600 init = cmdline_init;
4601 }
4602
4603 if (isempty(init))
4604 init = NULL;
4605
4606 if (init) {
4607 const char *root_systemd_path = NULL, *root_init_path = NULL;
4608
4609 root_systemd_path = strappenda(root, "/" SYSTEMD_BINARY_PATH);
4610 root_init_path = strappenda3(root, "/", init);
4611
4612 /* If the passed init is actually the same as the
4613 * systemd binary, then let's suppress it. */
4614 if (files_same(root_init_path, root_systemd_path) > 0)
4615 init = NULL;
4616 }
4617
4618 log_debug("Switching root - root: %s; init: %s", root, strna(init));
4619
4620 r = sd_bus_call_method(
4621 bus,
4622 "org.freedesktop.systemd1",
4623 "/org/freedesktop/systemd1",
4624 "org.freedesktop.systemd1.Manager",
4625 "SwitchRoot",
4626 &error,
4627 NULL,
4628 "ss", root, init);
4629 if (r < 0) {
4630 log_error("Failed to switch root: %s", bus_error_message(&error, r));
4631 return r;
4632 }
4633
4634 return 0;
4635 }
4636
4637 static int set_environment(sd_bus *bus, char **args) {
4638 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4639 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4640 const char *method;
4641 int r;
4642
4643 assert(bus);
4644 assert(args);
4645
4646 method = streq(args[0], "set-environment")
4647 ? "SetEnvironment"
4648 : "UnsetEnvironment";
4649
4650 r = sd_bus_message_new_method_call(
4651 bus,
4652 &m,
4653 "org.freedesktop.systemd1",
4654 "/org/freedesktop/systemd1",
4655 "org.freedesktop.systemd1.Manager",
4656 method);
4657 if (r < 0)
4658 return bus_log_create_error(r);
4659
4660 r = sd_bus_message_append_strv(m, args + 1);
4661 if (r < 0)
4662 return bus_log_create_error(r);
4663
4664 r = sd_bus_call(bus, m, 0, &error, NULL);
4665 if (r < 0) {
4666 log_error("Failed to set environment: %s", bus_error_message(&error, r));
4667 return r;
4668 }
4669
4670 return 0;
4671 }
4672
4673 static int import_environment(sd_bus *bus, char **args) {
4674 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4675 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4676 int r;
4677
4678 assert(bus);
4679 assert(args);
4680
4681 r = sd_bus_message_new_method_call(
4682 bus,
4683 &m,
4684 "org.freedesktop.systemd1",
4685 "/org/freedesktop/systemd1",
4686 "org.freedesktop.systemd1.Manager",
4687 "SetEnvironment");
4688 if (r < 0)
4689 return bus_log_create_error(r);
4690
4691 if (strv_isempty(args + 1))
4692 r = sd_bus_message_append_strv(m, environ);
4693 else {
4694 char **a, **b;
4695
4696 r = sd_bus_message_open_container(m, 'a', "s");
4697 if (r < 0)
4698 return bus_log_create_error(r);
4699
4700 STRV_FOREACH(a, args + 1) {
4701
4702 if (!env_name_is_valid(*a)) {
4703 log_error("Not a valid environment variable name: %s", *a);
4704 return -EINVAL;
4705 }
4706
4707 STRV_FOREACH(b, environ) {
4708 const char *eq;
4709
4710 eq = startswith(*b, *a);
4711 if (eq && *eq == '=') {
4712
4713 r = sd_bus_message_append(m, "s", *b);
4714 if (r < 0)
4715 return bus_log_create_error(r);
4716
4717 break;
4718 }
4719 }
4720 }
4721
4722 r = sd_bus_message_close_container(m);
4723 }
4724 if (r < 0)
4725 return bus_log_create_error(r);
4726
4727 r = sd_bus_call(bus, m, 0, &error, NULL);
4728 if (r < 0) {
4729 log_error("Failed to import environment: %s", bus_error_message(&error, r));
4730 return r;
4731 }
4732
4733 return 0;
4734 }
4735
4736 static int enable_sysv_units(const char *verb, char **args) {
4737 int r = 0;
4738
4739 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
4740 unsigned f = 1, t = 1;
4741 _cleanup_lookup_paths_free_ LookupPaths paths = {};
4742
4743 if (arg_scope != UNIT_FILE_SYSTEM)
4744 return 0;
4745
4746 if (!streq(verb, "enable") &&
4747 !streq(verb, "disable") &&
4748 !streq(verb, "is-enabled"))
4749 return 0;
4750
4751 /* Processes all SysV units, and reshuffles the array so that
4752 * afterwards only the native units remain */
4753
4754 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
4755 if (r < 0)
4756 return r;
4757
4758 r = 0;
4759 for (f = 0; args[f]; f++) {
4760 const char *name;
4761 _cleanup_free_ char *p = NULL, *q = NULL;
4762 bool found_native = false, found_sysv;
4763 unsigned c = 1;
4764 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
4765 char **k, *l;
4766 int j;
4767 pid_t pid;
4768 siginfo_t status;
4769
4770 name = args[f];
4771
4772 if (!endswith(name, ".service"))
4773 continue;
4774
4775 if (path_is_absolute(name))
4776 continue;
4777
4778 STRV_FOREACH(k, paths.unit_path) {
4779 if (!isempty(arg_root))
4780 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
4781 else
4782 asprintf(&p, "%s/%s", *k, name);
4783
4784 if (!p) {
4785 r = log_oom();
4786 goto finish;
4787 }
4788
4789 found_native = access(p, F_OK) >= 0;
4790 free(p);
4791 p = NULL;
4792
4793 if (found_native)
4794 break;
4795 }
4796
4797 if (found_native)
4798 continue;
4799
4800 if (!isempty(arg_root))
4801 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
4802 else
4803 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
4804 if (!p) {
4805 r = log_oom();
4806 goto finish;
4807 }
4808
4809 p[strlen(p) - sizeof(".service") + 1] = 0;
4810 found_sysv = access(p, F_OK) >= 0;
4811
4812 if (!found_sysv)
4813 continue;
4814
4815 /* Mark this entry, so that we don't try enabling it as native unit */
4816 args[f] = (char*) "";
4817
4818 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4819
4820 if (!isempty(arg_root))
4821 argv[c++] = q = strappend("--root=", arg_root);
4822
4823 argv[c++] = basename(p);
4824 argv[c++] =
4825 streq(verb, "enable") ? "on" :
4826 streq(verb, "disable") ? "off" : "--level=5";
4827 argv[c] = NULL;
4828
4829 l = strv_join((char**)argv, " ");
4830 if (!l) {
4831 r = log_oom();
4832 goto finish;
4833 }
4834
4835 log_info("Executing %s", l);
4836 free(l);
4837
4838 pid = fork();
4839 if (pid < 0) {
4840 log_error("Failed to fork: %m");
4841 r = -errno;
4842 goto finish;
4843 } else if (pid == 0) {
4844 /* Child */
4845
4846 execv(argv[0], (char**) argv);
4847 _exit(EXIT_FAILURE);
4848 }
4849
4850 j = wait_for_terminate(pid, &status);
4851 if (j < 0) {
4852 log_error("Failed to wait for child: %s", strerror(-r));
4853 r = j;
4854 goto finish;
4855 }
4856
4857 if (status.si_code == CLD_EXITED) {
4858 if (streq(verb, "is-enabled")) {
4859 if (status.si_status == 0) {
4860 if (!arg_quiet)
4861 puts("enabled");
4862 r = 1;
4863 } else {
4864 if (!arg_quiet)
4865 puts("disabled");
4866 }
4867
4868 } else if (status.si_status != 0) {
4869 r = -EINVAL;
4870 goto finish;
4871 }
4872 } else {
4873 r = -EPROTO;
4874 goto finish;
4875 }
4876 }
4877
4878 finish:
4879 /* Drop all SysV units */
4880 for (f = 0, t = 0; args[f]; f++) {
4881
4882 if (isempty(args[f]))
4883 continue;
4884
4885 args[t++] = args[f];
4886 }
4887
4888 args[t] = NULL;
4889
4890 #endif
4891 return r;
4892 }
4893
4894 static int mangle_names(char **original_names, char ***mangled_names) {
4895 char **i, **l, **name;
4896
4897 l = new(char*, strv_length(original_names) + 1);
4898 if (!l)
4899 return log_oom();
4900
4901 i = l;
4902 STRV_FOREACH(name, original_names) {
4903
4904 /* When enabling units qualified path names are OK,
4905 * too, hence allow them explicitly. */
4906
4907 if (is_path(*name))
4908 *i = strdup(*name);
4909 else
4910 *i = unit_name_mangle(*name, MANGLE_NOGLOB);
4911
4912 if (!*i) {
4913 strv_free(l);
4914 return log_oom();
4915 }
4916
4917 i++;
4918 }
4919
4920 *i = NULL;
4921 *mangled_names = l;
4922
4923 return 0;
4924 }
4925
4926 static int enable_unit(sd_bus *bus, char **args) {
4927 _cleanup_strv_free_ char **names = NULL;
4928 const char *verb = args[0];
4929 UnitFileChange *changes = NULL;
4930 unsigned n_changes = 0;
4931 int carries_install_info = -1;
4932 int r;
4933
4934 if (!args[1])
4935 return 0;
4936
4937 r = mangle_names(args+1, &names);
4938 if (r < 0)
4939 return r;
4940
4941 r = enable_sysv_units(verb, names);
4942 if (r < 0)
4943 return r;
4944
4945 /* If the operation was fully executed by the SysV compat,
4946 * let's finish early */
4947 if (strv_isempty(names))
4948 return 0;
4949
4950 if (!bus || avoid_bus()) {
4951 if (streq(verb, "enable")) {
4952 r = unit_file_enable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4953 carries_install_info = r;
4954 } else if (streq(verb, "disable"))
4955 r = unit_file_disable(arg_scope, arg_runtime, arg_root, names, &changes, &n_changes);
4956 else if (streq(verb, "reenable")) {
4957 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4958 carries_install_info = r;
4959 } else if (streq(verb, "link"))
4960 r = unit_file_link(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4961 else if (streq(verb, "preset")) {
4962 r = unit_file_preset(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4963 carries_install_info = r;
4964 } else if (streq(verb, "mask"))
4965 r = unit_file_mask(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
4966 else if (streq(verb, "unmask"))
4967 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, names, &changes, &n_changes);
4968 else
4969 assert_not_reached("Unknown verb");
4970
4971 if (r < 0) {
4972 log_error("Operation failed: %s", strerror(-r));
4973 goto finish;
4974 }
4975
4976 if (!arg_quiet)
4977 dump_unit_file_changes(changes, n_changes);
4978
4979 r = 0;
4980 } else {
4981 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
4982 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4983 int expect_carries_install_info = false;
4984 bool send_force = true;
4985 const char *method;
4986
4987 if (streq(verb, "enable")) {
4988 method = "EnableUnitFiles";
4989 expect_carries_install_info = true;
4990 } else if (streq(verb, "disable")) {
4991 method = "DisableUnitFiles";
4992 send_force = false;
4993 } else if (streq(verb, "reenable")) {
4994 method = "ReenableUnitFiles";
4995 expect_carries_install_info = true;
4996 } else if (streq(verb, "link"))
4997 method = "LinkUnitFiles";
4998 else if (streq(verb, "preset")) {
4999 method = "PresetUnitFiles";
5000 expect_carries_install_info = true;
5001 } else if (streq(verb, "mask"))
5002 method = "MaskUnitFiles";
5003 else if (streq(verb, "unmask")) {
5004 method = "UnmaskUnitFiles";
5005 send_force = false;
5006 } else
5007 assert_not_reached("Unknown verb");
5008
5009 r = sd_bus_message_new_method_call(
5010 bus,
5011 &m,
5012 "org.freedesktop.systemd1",
5013 "/org/freedesktop/systemd1",
5014 "org.freedesktop.systemd1.Manager",
5015 method);
5016 if (r < 0)
5017 return bus_log_create_error(r);
5018
5019 r = sd_bus_message_append_strv(m, names);
5020 if (r < 0)
5021 return bus_log_create_error(r);
5022
5023 r = sd_bus_message_append(m, "b", arg_runtime);
5024 if (r < 0)
5025 return bus_log_create_error(r);
5026
5027 if (send_force) {
5028 r = sd_bus_message_append(m, "b", arg_force);
5029 if (r < 0)
5030 return bus_log_create_error(r);
5031 }
5032
5033 r = sd_bus_call(bus, m, 0, &error, &reply);
5034 if (r < 0) {
5035 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
5036 return r;
5037 }
5038
5039 if (expect_carries_install_info) {
5040 r = sd_bus_message_read(reply, "b", &carries_install_info);
5041 if (r < 0)
5042 return bus_log_parse_error(r);
5043 }
5044
5045 r = deserialize_and_dump_unit_file_changes(reply);
5046 if (r < 0)
5047 return r;
5048
5049 /* Try to reload if enabeld */
5050 if (!arg_no_reload)
5051 r = daemon_reload(bus, args);
5052 else
5053 r = 0;
5054 }
5055
5056 if (carries_install_info == 0)
5057 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
5058 "using systemctl.\n"
5059 "Possible reasons for having this kind of units are:\n"
5060 "1) A unit may be statically enabled by being symlinked from another unit's\n"
5061 " .wants/ or .requires/ directory.\n"
5062 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
5063 " a requirement dependency on it.\n"
5064 "3) A unit may be started when needed via activation (socket, path, timer,\n"
5065 " D-Bus, udev, scripted systemctl call, ...).\n");
5066
5067 finish:
5068 unit_file_changes_free(changes, n_changes);
5069
5070 return r;
5071 }
5072
5073 static int unit_is_enabled(sd_bus *bus, char **args) {
5074
5075 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
5076 _cleanup_strv_free_ char **names = NULL;
5077 bool enabled;
5078 char **name;
5079 int r;
5080
5081 r = mangle_names(args+1, &names);
5082 if (r < 0)
5083 return r;
5084
5085 r = enable_sysv_units(args[0], names);
5086 if (r < 0)
5087 return r;
5088
5089 enabled = r > 0;
5090
5091 if (!bus || avoid_bus()) {
5092
5093 STRV_FOREACH(name, names) {
5094 UnitFileState state;
5095
5096 state = unit_file_get_state(arg_scope, arg_root, *name);
5097 if (state < 0) {
5098 log_error("Failed to get unit file state for %s: %s", *name, strerror(-state));
5099 return state;
5100 }
5101
5102 if (state == UNIT_FILE_ENABLED ||
5103 state == UNIT_FILE_ENABLED_RUNTIME ||
5104 state == UNIT_FILE_STATIC)
5105 enabled = true;
5106
5107 if (!arg_quiet)
5108 puts(unit_file_state_to_string(state));
5109 }
5110
5111 } else {
5112 STRV_FOREACH(name, names) {
5113 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
5114 const char *s;
5115
5116 r = sd_bus_call_method(
5117 bus,
5118 "org.freedesktop.systemd1",
5119 "/org/freedesktop/systemd1",
5120 "org.freedesktop.systemd1.Manager",
5121 "GetUnitFileState",
5122 &error,
5123 &reply,
5124 "s", *name);
5125 if (r < 0) {
5126 log_error("Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
5127 return r;
5128 }
5129
5130 r = sd_bus_message_read(reply, "s", &s);
5131 if (r < 0)
5132 return bus_log_parse_error(r);
5133
5134 if (streq(s, "enabled") ||
5135 streq(s, "enabled-runtime") ||
5136 streq(s, "static"))
5137 enabled = true;
5138
5139 if (!arg_quiet)
5140 puts(s);
5141 }
5142 }
5143
5144 return !enabled;
5145 }
5146
5147 static int systemctl_help(void) {
5148
5149 pager_open_if_enabled();
5150
5151 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5152 "Query or send control commands to the systemd manager.\n\n"
5153 " -h --help Show this help\n"
5154 " --version Show package version\n"
5155 " --system Connect to system manager\n"
5156 " --user Connect to user service manager\n"
5157 " -H --host=[USER@]HOST\n"
5158 " Operate on remote host\n"
5159 " -M --machine=CONTAINER\n"
5160 " Operate on local container\n"
5161 " -t --type=TYPE List only units of a particular type\n"
5162 " --state=STATE List only units with particular LOAD or SUB or ACTIVE state\n"
5163 " -p --property=NAME Show only properties by this name\n"
5164 " -a --all Show all loaded units/properties, including dead/empty\n"
5165 " ones. To list all units installed on the system, use\n"
5166 " the 'list-unit-files' command instead.\n"
5167 " -l --full Don't ellipsize unit names on output\n"
5168 " --reverse Show reverse dependencies with 'list-dependencies'\n"
5169 " --job-mode=MODE Specify how to deal with already queued jobs, when\n"
5170 " queueing a new job\n"
5171 " --show-types When showing sockets, explicitly show their type\n"
5172 " -i --ignore-inhibitors\n"
5173 " When shutting down or sleeping, ignore inhibitors\n"
5174 " --kill-who=WHO Who to send signal to\n"
5175 " -s --signal=SIGNAL Which signal to send\n"
5176 " -q --quiet Suppress output\n"
5177 " --no-block Do not wait until operation finished\n"
5178 " --no-wall Don't send wall message before halt/power-off/reboot\n"
5179 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
5180 " configuration\n"
5181 " --no-legend Do not print a legend (column headers and hints)\n"
5182 " --no-pager Do not pipe output into a pager\n"
5183 " --no-ask-password\n"
5184 " Do not ask for system passwords\n"
5185 " --global Enable/disable unit files globally\n"
5186 " --runtime Enable unit files only temporarily until next reboot\n"
5187 " -f --force When enabling unit files, override existing symlinks\n"
5188 " When shutting down, execute action immediately\n"
5189 " --root=PATH Enable unit files in the specified root directory\n"
5190 " -n --lines=INTEGER Number of journal entries to show\n"
5191 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
5192 " verbose, export, json, json-pretty, json-sse, cat)\n"
5193 " --plain Print unit dependencies as a list instead of a tree\n\n"
5194 "Unit Commands:\n"
5195 " list-units [PATTERN...] List loaded units\n"
5196 " list-sockets [PATTERN...] List loaded sockets ordered by address\n"
5197 " list-timers [PATTERN...] List loaded timers ordered by next elapse\n"
5198 " start NAME... Start (activate) one or more units\n"
5199 " stop NAME... Stop (deactivate) one or more units\n"
5200 " reload NAME... Reload one or more units\n"
5201 " restart NAME... Start or restart one or more units\n"
5202 " try-restart NAME... Restart one or more units if active\n"
5203 " reload-or-restart NAME... Reload one or more units if possible,\n"
5204 " otherwise start or restart\n"
5205 " reload-or-try-restart NAME... Reload one or more units if possible,\n"
5206 " otherwise restart if active\n"
5207 " isolate NAME Start one unit and stop all others\n"
5208 " kill NAME... Send signal to processes of a unit\n"
5209 " is-active NAME... Check whether units are active\n"
5210 " is-failed NAME... Check whether units are failed\n"
5211 " status [NAME...|PID...] Show runtime status of one or more units\n"
5212 " show [NAME...|JOB...] Show properties of one or more\n"
5213 " units/jobs or the manager\n"
5214 " cat NAME... Show files and drop-ins of one or more units\n"
5215 " set-property NAME ASSIGNMENT... Sets one or more properties of a unit\n"
5216 " help NAME...|PID... Show manual for one or more units\n"
5217 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
5218 " units\n"
5219 " list-dependencies [NAME] Recursively show units which are required\n"
5220 " or wanted by this unit or by which this\n"
5221 " unit is required or wanted\n\n"
5222 "Unit File Commands:\n"
5223 " list-unit-files [PATTERN...] List installed unit files\n"
5224 " enable NAME... Enable one or more unit files\n"
5225 " disable NAME... Disable one or more unit files\n"
5226 " reenable NAME... Reenable one or more unit files\n"
5227 " preset NAME... Enable/disable one or more unit files\n"
5228 " based on preset configuration\n"
5229 " is-enabled NAME... Check whether unit files are enabled\n\n"
5230 " mask NAME... Mask one or more units\n"
5231 " unmask NAME... Unmask one or more units\n"
5232 " link PATH... Link one or more units files into\n"
5233 " the search path\n"
5234 " get-default Get the name of the default target\n"
5235 " set-default NAME Set the default target\n\n"
5236 "Machine Commands:\n"
5237 " list-machines [PATTERN...] List local containers and host\n\n"
5238 "Job Commands:\n"
5239 " list-jobs [PATTERN...] List jobs\n"
5240 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
5241 "Snapshot Commands:\n"
5242 " snapshot [NAME] Create a snapshot\n"
5243 " delete NAME... Remove one or more snapshots\n\n"
5244 "Environment Commands:\n"
5245 " show-environment Dump environment\n"
5246 " set-environment NAME=VALUE... Set one or more environment variables\n"
5247 " unset-environment NAME... Unset one or more environment variables\n"
5248 " import-environment NAME... Import all, one or more environment variables\n\n"
5249 "Manager Lifecycle Commands:\n"
5250 " daemon-reload Reload systemd manager configuration\n"
5251 " daemon-reexec Reexecute systemd manager\n\n"
5252 "System Commands:\n"
5253 " default Enter system default mode\n"
5254 " rescue Enter system rescue mode\n"
5255 " emergency Enter system emergency mode\n"
5256 " halt Shut down and halt the system\n"
5257 " poweroff Shut down and power-off the system\n"
5258 " reboot [ARG] Shut down and reboot the system\n"
5259 " kexec Shut down and reboot the system with kexec\n"
5260 " exit Request user instance exit\n"
5261 " switch-root ROOT [INIT] Change to a different root file system\n"
5262 " suspend Suspend the system\n"
5263 " hibernate Hibernate the system\n"
5264 " hybrid-sleep Hibernate and suspend the system\n",
5265 program_invocation_short_name);
5266
5267 return 0;
5268 }
5269
5270 static int halt_help(void) {
5271
5272 printf("%s [OPTIONS...]%s\n\n"
5273 "%s the system.\n\n"
5274 " --help Show this help\n"
5275 " --halt Halt the machine\n"
5276 " -p --poweroff Switch off the machine\n"
5277 " --reboot Reboot the machine\n"
5278 " -f --force Force immediate halt/power-off/reboot\n"
5279 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
5280 " -d --no-wtmp Don't write wtmp record\n"
5281 " --no-wall Don't send wall message before halt/power-off/reboot\n",
5282 program_invocation_short_name,
5283 arg_action == ACTION_REBOOT ? " [ARG]" : "",
5284 arg_action == ACTION_REBOOT ? "Reboot" :
5285 arg_action == ACTION_POWEROFF ? "Power off" :
5286 "Halt");
5287
5288 return 0;
5289 }
5290
5291 static int shutdown_help(void) {
5292
5293 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
5294 "Shut down the system.\n\n"
5295 " --help Show this help\n"
5296 " -H --halt Halt the machine\n"
5297 " -P --poweroff Power-off the machine\n"
5298 " -r --reboot Reboot the machine\n"
5299 " -h Equivalent to --poweroff, overridden by --halt\n"
5300 " -k Don't halt/power-off/reboot, just send warnings\n"
5301 " --no-wall Don't send wall message before halt/power-off/reboot\n"
5302 " -c Cancel a pending shutdown\n",
5303 program_invocation_short_name);
5304
5305 return 0;
5306 }
5307
5308 static int telinit_help(void) {
5309
5310 printf("%s [OPTIONS...] {COMMAND}\n\n"
5311 "Send control commands to the init daemon.\n\n"
5312 " --help Show this help\n"
5313 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
5314 "Commands:\n"
5315 " 0 Power-off the machine\n"
5316 " 6 Reboot the machine\n"
5317 " 2, 3, 4, 5 Start runlevelX.target unit\n"
5318 " 1, s, S Enter rescue mode\n"
5319 " q, Q Reload init daemon configuration\n"
5320 " u, U Reexecute init daemon\n",
5321 program_invocation_short_name);
5322
5323 return 0;
5324 }
5325
5326 static int runlevel_help(void) {
5327
5328 printf("%s [OPTIONS...]\n\n"
5329 "Prints the previous and current runlevel of the init system.\n\n"
5330 " --help Show this help\n",
5331 program_invocation_short_name);
5332
5333 return 0;
5334 }
5335
5336 static int help_types(void) {
5337 int i;
5338 const char *t;
5339
5340 puts("Available unit types:");
5341 for (i = 0; i < _UNIT_TYPE_MAX; i++) {
5342 t = unit_type_to_string(i);
5343 if (t)
5344 puts(t);
5345 }
5346
5347 return 0;
5348 }
5349
5350 static int systemctl_parse_argv(int argc, char *argv[]) {
5351
5352 enum {
5353 ARG_FAIL = 0x100,
5354 ARG_REVERSE,
5355 ARG_AFTER,
5356 ARG_BEFORE,
5357 ARG_SHOW_TYPES,
5358 ARG_IRREVERSIBLE,
5359 ARG_IGNORE_DEPENDENCIES,
5360 ARG_VERSION,
5361 ARG_USER,
5362 ARG_SYSTEM,
5363 ARG_GLOBAL,
5364 ARG_NO_BLOCK,
5365 ARG_NO_LEGEND,
5366 ARG_NO_PAGER,
5367 ARG_NO_WALL,
5368 ARG_ROOT,
5369 ARG_NO_RELOAD,
5370 ARG_KILL_WHO,
5371 ARG_NO_ASK_PASSWORD,
5372 ARG_FAILED,
5373 ARG_RUNTIME,
5374 ARG_FORCE,
5375 ARG_PLAIN,
5376 ARG_STATE,
5377 ARG_JOB_MODE
5378 };
5379
5380 static const struct option options[] = {
5381 { "help", no_argument, NULL, 'h' },
5382 { "version", no_argument, NULL, ARG_VERSION },
5383 { "type", required_argument, NULL, 't' },
5384 { "property", required_argument, NULL, 'p' },
5385 { "all", no_argument, NULL, 'a' },
5386 { "reverse", no_argument, NULL, ARG_REVERSE },
5387 { "after", no_argument, NULL, ARG_AFTER },
5388 { "before", no_argument, NULL, ARG_BEFORE },
5389 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
5390 { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
5391 { "full", no_argument, NULL, 'l' },
5392 { "job-mode", required_argument, NULL, ARG_JOB_MODE },
5393 { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */
5394 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */
5395 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */
5396 { "ignore-inhibitors", no_argument, NULL, 'i' },
5397 { "user", no_argument, NULL, ARG_USER },
5398 { "system", no_argument, NULL, ARG_SYSTEM },
5399 { "global", no_argument, NULL, ARG_GLOBAL },
5400 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
5401 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
5402 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
5403 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5404 { "quiet", no_argument, NULL, 'q' },
5405 { "root", required_argument, NULL, ARG_ROOT },
5406 { "force", no_argument, NULL, ARG_FORCE },
5407 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
5408 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
5409 { "signal", required_argument, NULL, 's' },
5410 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
5411 { "host", required_argument, NULL, 'H' },
5412 { "machine", required_argument, NULL, 'M' },
5413 { "runtime", no_argument, NULL, ARG_RUNTIME },
5414 { "lines", required_argument, NULL, 'n' },
5415 { "output", required_argument, NULL, 'o' },
5416 { "plain", no_argument, NULL, ARG_PLAIN },
5417 { "state", required_argument, NULL, ARG_STATE },
5418 {}
5419 };
5420
5421 int c;
5422
5423 assert(argc >= 0);
5424 assert(argv);
5425
5426 while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:i", options, NULL)) >= 0) {
5427
5428 switch (c) {
5429
5430 case 'h':
5431 return systemctl_help();
5432
5433 case ARG_VERSION:
5434 puts(PACKAGE_STRING);
5435 puts(SYSTEMD_FEATURES);
5436 return 0;
5437
5438 case 't': {
5439 char *word, *state;
5440 size_t size;
5441
5442 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5443 _cleanup_free_ char *type;
5444
5445 type = strndup(word, size);
5446 if (!type)
5447 return -ENOMEM;
5448
5449 if (streq(type, "help")) {
5450 help_types();
5451 return 0;
5452 }
5453
5454 if (unit_type_from_string(type) >= 0) {
5455 if (strv_push(&arg_types, type))
5456 return log_oom();
5457 type = NULL;
5458 continue;
5459 }
5460
5461 /* It's much nicer to use --state= for
5462 * load states, but let's support this
5463 * in --types= too for compatibility
5464 * with old versions */
5465 if (unit_load_state_from_string(optarg) >= 0) {
5466 if (strv_push(&arg_states, type) < 0)
5467 return log_oom();
5468 type = NULL;
5469 continue;
5470 }
5471
5472 log_error("Unknown unit type or load state '%s'.", type);
5473 log_info("Use -t help to see a list of allowed values.");
5474 return -EINVAL;
5475 }
5476
5477 break;
5478 }
5479
5480 case 'p': {
5481 /* Make sure that if the empty property list
5482 was specified, we won't show any properties. */
5483 if (isempty(optarg) && !arg_properties) {
5484 arg_properties = new0(char*, 1);
5485 if (!arg_properties)
5486 return log_oom();
5487 } else {
5488 char *word, *state;
5489 size_t size;
5490
5491 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5492 char *prop;
5493
5494 prop = strndup(word, size);
5495 if (!prop)
5496 return log_oom();
5497
5498 if (strv_consume(&arg_properties, prop) < 0)
5499 return log_oom();
5500 }
5501 }
5502
5503 /* If the user asked for a particular
5504 * property, show it to him, even if it is
5505 * empty. */
5506 arg_all = true;
5507
5508 break;
5509 }
5510
5511 case 'a':
5512 arg_all = true;
5513 break;
5514
5515 case ARG_REVERSE:
5516 arg_dependency = DEPENDENCY_REVERSE;
5517 break;
5518
5519 case ARG_AFTER:
5520 arg_dependency = DEPENDENCY_AFTER;
5521 break;
5522
5523 case ARG_BEFORE:
5524 arg_dependency = DEPENDENCY_BEFORE;
5525 break;
5526
5527 case ARG_SHOW_TYPES:
5528 arg_show_types = true;
5529 break;
5530
5531 case ARG_JOB_MODE:
5532 arg_job_mode = optarg;
5533 break;
5534
5535 case ARG_FAIL:
5536 arg_job_mode = "fail";
5537 break;
5538
5539 case ARG_IRREVERSIBLE:
5540 arg_job_mode = "replace-irreversibly";
5541 break;
5542
5543 case ARG_IGNORE_DEPENDENCIES:
5544 arg_job_mode = "ignore-dependencies";
5545 break;
5546
5547 case ARG_USER:
5548 arg_scope = UNIT_FILE_USER;
5549 break;
5550
5551 case ARG_SYSTEM:
5552 arg_scope = UNIT_FILE_SYSTEM;
5553 break;
5554
5555 case ARG_GLOBAL:
5556 arg_scope = UNIT_FILE_GLOBAL;
5557 break;
5558
5559 case ARG_NO_BLOCK:
5560 arg_no_block = true;
5561 break;
5562
5563 case ARG_NO_LEGEND:
5564 arg_no_legend = true;
5565 break;
5566
5567 case ARG_NO_PAGER:
5568 arg_no_pager = true;
5569 break;
5570
5571 case ARG_NO_WALL:
5572 arg_no_wall = true;
5573 break;
5574
5575 case ARG_ROOT:
5576 arg_root = optarg;
5577 break;
5578
5579 case 'l':
5580 arg_full = true;
5581 break;
5582
5583 case ARG_FAILED:
5584 if (strv_extend(&arg_states, "failed") < 0)
5585 return log_oom();
5586
5587 break;
5588
5589 case 'q':
5590 arg_quiet = true;
5591 break;
5592
5593 case ARG_FORCE:
5594 arg_force ++;
5595 break;
5596
5597 case 'f':
5598 arg_force ++;
5599 break;
5600
5601 case ARG_NO_RELOAD:
5602 arg_no_reload = true;
5603 break;
5604
5605 case ARG_KILL_WHO:
5606 arg_kill_who = optarg;
5607 break;
5608
5609 case 's':
5610 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
5611 log_error("Failed to parse signal string %s.", optarg);
5612 return -EINVAL;
5613 }
5614 break;
5615
5616 case ARG_NO_ASK_PASSWORD:
5617 arg_ask_password = false;
5618 break;
5619
5620 case 'H':
5621 arg_transport = BUS_TRANSPORT_REMOTE;
5622 arg_host = optarg;
5623 break;
5624
5625 case 'M':
5626 arg_transport = BUS_TRANSPORT_CONTAINER;
5627 arg_host = optarg;
5628 break;
5629
5630 case ARG_RUNTIME:
5631 arg_runtime = true;
5632 break;
5633
5634 case 'n':
5635 if (safe_atou(optarg, &arg_lines) < 0) {
5636 log_error("Failed to parse lines '%s'", optarg);
5637 return -EINVAL;
5638 }
5639 break;
5640
5641 case 'o':
5642 arg_output = output_mode_from_string(optarg);
5643 if (arg_output < 0) {
5644 log_error("Unknown output '%s'.", optarg);
5645 return -EINVAL;
5646 }
5647 break;
5648
5649 case 'i':
5650 arg_ignore_inhibitors = true;
5651 break;
5652
5653 case ARG_PLAIN:
5654 arg_plain = true;
5655 break;
5656
5657 case ARG_STATE: {
5658 char *word, *state;
5659 size_t size;
5660
5661 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5662 char *s;
5663
5664 s = strndup(word, size);
5665 if (!s)
5666 return log_oom();
5667
5668 if (strv_consume(&arg_states, s) < 0)
5669 return log_oom();
5670 }
5671 break;
5672 }
5673
5674 case '?':
5675 return -EINVAL;
5676
5677 default:
5678 assert_not_reached("Unhandled option");
5679 }
5680 }
5681
5682 if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
5683 log_error("Cannot access user instance remotely.");
5684 return -EINVAL;
5685 }
5686
5687 return 1;
5688 }
5689
5690 static int halt_parse_argv(int argc, char *argv[]) {
5691
5692 enum {
5693 ARG_HELP = 0x100,
5694 ARG_HALT,
5695 ARG_REBOOT,
5696 ARG_NO_WALL
5697 };
5698
5699 static const struct option options[] = {
5700 { "help", no_argument, NULL, ARG_HELP },
5701 { "halt", no_argument, NULL, ARG_HALT },
5702 { "poweroff", no_argument, NULL, 'p' },
5703 { "reboot", no_argument, NULL, ARG_REBOOT },
5704 { "force", no_argument, NULL, 'f' },
5705 { "wtmp-only", no_argument, NULL, 'w' },
5706 { "no-wtmp", no_argument, NULL, 'd' },
5707 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5708 {}
5709 };
5710
5711 int c, r, runlevel;
5712
5713 assert(argc >= 0);
5714 assert(argv);
5715
5716 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
5717 if (runlevel == '0' || runlevel == '6')
5718 arg_force = 2;
5719
5720 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
5721 switch (c) {
5722
5723 case ARG_HELP:
5724 return halt_help();
5725
5726 case ARG_HALT:
5727 arg_action = ACTION_HALT;
5728 break;
5729
5730 case 'p':
5731 if (arg_action != ACTION_REBOOT)
5732 arg_action = ACTION_POWEROFF;
5733 break;
5734
5735 case ARG_REBOOT:
5736 arg_action = ACTION_REBOOT;
5737 break;
5738
5739 case 'f':
5740 arg_force = 2;
5741 break;
5742
5743 case 'w':
5744 arg_dry = true;
5745 break;
5746
5747 case 'd':
5748 arg_no_wtmp = true;
5749 break;
5750
5751 case ARG_NO_WALL:
5752 arg_no_wall = true;
5753 break;
5754
5755 case 'i':
5756 case 'h':
5757 case 'n':
5758 /* Compatibility nops */
5759 break;
5760
5761 case '?':
5762 return -EINVAL;
5763
5764 default:
5765 assert_not_reached("Unhandled option");
5766 }
5767 }
5768
5769 if (arg_action == ACTION_REBOOT && argc == optind + 1) {
5770 r = write_string_file(REBOOT_PARAM_FILE, argv[optind]);
5771 if (r < 0) {
5772 log_error("Failed to write reboot param to "
5773 REBOOT_PARAM_FILE": %s", strerror(-r));
5774 return r;
5775 }
5776 } else if (optind < argc) {
5777 log_error("Too many arguments.");
5778 return -EINVAL;
5779 }
5780
5781 return 1;
5782 }
5783
5784 static int parse_time_spec(const char *t, usec_t *_u) {
5785 assert(t);
5786 assert(_u);
5787
5788 if (streq(t, "now"))
5789 *_u = 0;
5790 else if (!strchr(t, ':')) {
5791 uint64_t u;
5792
5793 if (safe_atou64(t, &u) < 0)
5794 return -EINVAL;
5795
5796 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
5797 } else {
5798 char *e = NULL;
5799 long hour, minute;
5800 struct tm tm = {};
5801 time_t s;
5802 usec_t n;
5803
5804 errno = 0;
5805 hour = strtol(t, &e, 10);
5806 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
5807 return -EINVAL;
5808
5809 minute = strtol(e+1, &e, 10);
5810 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
5811 return -EINVAL;
5812
5813 n = now(CLOCK_REALTIME);
5814 s = (time_t) (n / USEC_PER_SEC);
5815
5816 assert_se(localtime_r(&s, &tm));
5817
5818 tm.tm_hour = (int) hour;
5819 tm.tm_min = (int) minute;
5820 tm.tm_sec = 0;
5821
5822 assert_se(s = mktime(&tm));
5823
5824 *_u = (usec_t) s * USEC_PER_SEC;
5825
5826 while (*_u <= n)
5827 *_u += USEC_PER_DAY;
5828 }
5829
5830 return 0;
5831 }
5832
5833 static int shutdown_parse_argv(int argc, char *argv[]) {
5834
5835 enum {
5836 ARG_HELP = 0x100,
5837 ARG_NO_WALL
5838 };
5839
5840 static const struct option options[] = {
5841 { "help", no_argument, NULL, ARG_HELP },
5842 { "halt", no_argument, NULL, 'H' },
5843 { "poweroff", no_argument, NULL, 'P' },
5844 { "reboot", no_argument, NULL, 'r' },
5845 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
5846 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5847 {}
5848 };
5849
5850 int c, r;
5851
5852 assert(argc >= 0);
5853 assert(argv);
5854
5855 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
5856 switch (c) {
5857
5858 case ARG_HELP:
5859 return shutdown_help();
5860
5861 case 'H':
5862 arg_action = ACTION_HALT;
5863 break;
5864
5865 case 'P':
5866 arg_action = ACTION_POWEROFF;
5867 break;
5868
5869 case 'r':
5870 if (kexec_loaded())
5871 arg_action = ACTION_KEXEC;
5872 else
5873 arg_action = ACTION_REBOOT;
5874 break;
5875
5876 case 'K':
5877 arg_action = ACTION_KEXEC;
5878 break;
5879
5880 case 'h':
5881 if (arg_action != ACTION_HALT)
5882 arg_action = ACTION_POWEROFF;
5883 break;
5884
5885 case 'k':
5886 arg_dry = true;
5887 break;
5888
5889 case ARG_NO_WALL:
5890 arg_no_wall = true;
5891 break;
5892
5893 case 't':
5894 case 'a':
5895 /* Compatibility nops */
5896 break;
5897
5898 case 'c':
5899 arg_action = ACTION_CANCEL_SHUTDOWN;
5900 break;
5901
5902 case '?':
5903 return -EINVAL;
5904
5905 default:
5906 assert_not_reached("Unhandled option");
5907 }
5908 }
5909
5910 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
5911 r = parse_time_spec(argv[optind], &arg_when);
5912 if (r < 0) {
5913 log_error("Failed to parse time specification: %s", argv[optind]);
5914 return r;
5915 }
5916 } else
5917 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5918
5919 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
5920 /* No time argument for shutdown cancel */
5921 arg_wall = argv + optind;
5922 else if (argc > optind + 1)
5923 /* We skip the time argument */
5924 arg_wall = argv + optind + 1;
5925
5926 optind = argc;
5927
5928 return 1;
5929 }
5930
5931 static int telinit_parse_argv(int argc, char *argv[]) {
5932
5933 enum {
5934 ARG_HELP = 0x100,
5935 ARG_NO_WALL
5936 };
5937
5938 static const struct option options[] = {
5939 { "help", no_argument, NULL, ARG_HELP },
5940 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5941 {}
5942 };
5943
5944 static const struct {
5945 char from;
5946 enum action to;
5947 } table[] = {
5948 { '0', ACTION_POWEROFF },
5949 { '6', ACTION_REBOOT },
5950 { '1', ACTION_RESCUE },
5951 { '2', ACTION_RUNLEVEL2 },
5952 { '3', ACTION_RUNLEVEL3 },
5953 { '4', ACTION_RUNLEVEL4 },
5954 { '5', ACTION_RUNLEVEL5 },
5955 { 's', ACTION_RESCUE },
5956 { 'S', ACTION_RESCUE },
5957 { 'q', ACTION_RELOAD },
5958 { 'Q', ACTION_RELOAD },
5959 { 'u', ACTION_REEXEC },
5960 { 'U', ACTION_REEXEC }
5961 };
5962
5963 unsigned i;
5964 int c;
5965
5966 assert(argc >= 0);
5967 assert(argv);
5968
5969 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5970 switch (c) {
5971
5972 case ARG_HELP:
5973 return telinit_help();
5974
5975 case ARG_NO_WALL:
5976 arg_no_wall = true;
5977 break;
5978
5979 case '?':
5980 return -EINVAL;
5981
5982 default:
5983 assert_not_reached("Unhandled option");
5984 }
5985 }
5986
5987 if (optind >= argc) {
5988 telinit_help();
5989 return -EINVAL;
5990 }
5991
5992 if (optind + 1 < argc) {
5993 log_error("Too many arguments.");
5994 return -EINVAL;
5995 }
5996
5997 if (strlen(argv[optind]) != 1) {
5998 log_error("Expected single character argument.");
5999 return -EINVAL;
6000 }
6001
6002 for (i = 0; i < ELEMENTSOF(table); i++)
6003 if (table[i].from == argv[optind][0])
6004 break;
6005
6006 if (i >= ELEMENTSOF(table)) {
6007 log_error("Unknown command '%s'.", argv[optind]);
6008 return -EINVAL;
6009 }
6010
6011 arg_action = table[i].to;
6012
6013 optind ++;
6014
6015 return 1;
6016 }
6017
6018 static int runlevel_parse_argv(int argc, char *argv[]) {
6019
6020 enum {
6021 ARG_HELP = 0x100,
6022 };
6023
6024 static const struct option options[] = {
6025 { "help", no_argument, NULL, ARG_HELP },
6026 {}
6027 };
6028
6029 int c;
6030
6031 assert(argc >= 0);
6032 assert(argv);
6033
6034 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
6035 switch (c) {
6036
6037 case ARG_HELP:
6038 return runlevel_help();
6039
6040 case '?':
6041 return -EINVAL;
6042
6043 default:
6044 assert_not_reached("Unhandled option");
6045 }
6046 }
6047
6048 if (optind < argc) {
6049 log_error("Too many arguments.");
6050 return -EINVAL;
6051 }
6052
6053 return 1;
6054 }
6055
6056 static int parse_argv(int argc, char *argv[]) {
6057 assert(argc >= 0);
6058 assert(argv);
6059
6060 if (program_invocation_short_name) {
6061
6062 if (strstr(program_invocation_short_name, "halt")) {
6063 arg_action = ACTION_HALT;
6064 return halt_parse_argv(argc, argv);
6065 } else if (strstr(program_invocation_short_name, "poweroff")) {
6066 arg_action = ACTION_POWEROFF;
6067 return halt_parse_argv(argc, argv);
6068 } else if (strstr(program_invocation_short_name, "reboot")) {
6069 if (kexec_loaded())
6070 arg_action = ACTION_KEXEC;
6071 else
6072 arg_action = ACTION_REBOOT;
6073 return halt_parse_argv(argc, argv);
6074 } else if (strstr(program_invocation_short_name, "shutdown")) {
6075 arg_action = ACTION_POWEROFF;
6076 return shutdown_parse_argv(argc, argv);
6077 } else if (strstr(program_invocation_short_name, "init")) {
6078
6079 if (sd_booted() > 0) {
6080 arg_action = _ACTION_INVALID;
6081 return telinit_parse_argv(argc, argv);
6082 } else {
6083 /* Hmm, so some other init system is
6084 * running, we need to forward this
6085 * request to it. For now we simply
6086 * guess that it is Upstart. */
6087
6088 execv(TELINIT, argv);
6089
6090 log_error("Couldn't find an alternative telinit implementation to spawn.");
6091 return -EIO;
6092 }
6093
6094 } else if (strstr(program_invocation_short_name, "runlevel")) {
6095 arg_action = ACTION_RUNLEVEL;
6096 return runlevel_parse_argv(argc, argv);
6097 }
6098 }
6099
6100 arg_action = ACTION_SYSTEMCTL;
6101 return systemctl_parse_argv(argc, argv);
6102 }
6103
6104 _pure_ static int action_to_runlevel(void) {
6105
6106 static const char table[_ACTION_MAX] = {
6107 [ACTION_HALT] = '0',
6108 [ACTION_POWEROFF] = '0',
6109 [ACTION_REBOOT] = '6',
6110 [ACTION_RUNLEVEL2] = '2',
6111 [ACTION_RUNLEVEL3] = '3',
6112 [ACTION_RUNLEVEL4] = '4',
6113 [ACTION_RUNLEVEL5] = '5',
6114 [ACTION_RESCUE] = '1'
6115 };
6116
6117 assert(arg_action < _ACTION_MAX);
6118
6119 return table[arg_action];
6120 }
6121
6122 static int talk_initctl(void) {
6123
6124 struct init_request request = {
6125 .magic = INIT_MAGIC,
6126 .sleeptime = 0,
6127 .cmd = INIT_CMD_RUNLVL
6128 };
6129
6130 _cleanup_close_ int fd = -1;
6131 char rl;
6132 int r;
6133
6134 rl = action_to_runlevel();
6135 if (!rl)
6136 return 0;
6137
6138 request.runlevel = rl;
6139
6140 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
6141 if (fd < 0) {
6142 if (errno == ENOENT)
6143 return 0;
6144
6145 log_error("Failed to open "INIT_FIFO": %m");
6146 return -errno;
6147 }
6148
6149 errno = 0;
6150 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
6151 if (r) {
6152 log_error("Failed to write to "INIT_FIFO": %m");
6153 return errno > 0 ? -errno : -EIO;
6154 }
6155
6156 return 1;
6157 }
6158
6159 static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
6160
6161 static const struct {
6162 const char* verb;
6163 const enum {
6164 MORE,
6165 LESS,
6166 EQUAL
6167 } argc_cmp;
6168 const int argc;
6169 int (* const dispatch)(sd_bus *bus, char **args);
6170 const enum {
6171 NOBUS = 1,
6172 FORCE,
6173 } bus;
6174 } verbs[] = {
6175 { "list-units", MORE, 0, list_units },
6176 { "list-unit-files", MORE, 1, list_unit_files, NOBUS },
6177 { "list-sockets", MORE, 1, list_sockets },
6178 { "list-timers", MORE, 1, list_timers },
6179 { "list-jobs", MORE, 1, list_jobs },
6180 { "list-machines", MORE, 1, list_machines },
6181 { "clear-jobs", EQUAL, 1, daemon_reload },
6182 { "cancel", MORE, 2, cancel_job },
6183 { "start", MORE, 2, start_unit },
6184 { "stop", MORE, 2, start_unit },
6185 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
6186 { "reload", MORE, 2, start_unit },
6187 { "restart", MORE, 2, start_unit },
6188 { "try-restart", MORE, 2, start_unit },
6189 { "reload-or-restart", MORE, 2, start_unit },
6190 { "reload-or-try-restart", MORE, 2, start_unit },
6191 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
6192 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
6193 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
6194 { "isolate", EQUAL, 2, start_unit },
6195 { "kill", MORE, 2, kill_unit },
6196 { "is-active", MORE, 2, check_unit_active },
6197 { "check", MORE, 2, check_unit_active },
6198 { "is-failed", MORE, 2, check_unit_failed },
6199 { "show", MORE, 1, show },
6200 { "cat", MORE, 2, cat },
6201 { "status", MORE, 1, show },
6202 { "help", MORE, 2, show },
6203 { "snapshot", LESS, 2, snapshot },
6204 { "delete", MORE, 2, delete_snapshot },
6205 { "daemon-reload", EQUAL, 1, daemon_reload },
6206 { "daemon-reexec", EQUAL, 1, daemon_reload },
6207 { "show-environment", EQUAL, 1, show_environment },
6208 { "set-environment", MORE, 2, set_environment },
6209 { "unset-environment", MORE, 2, set_environment },
6210 { "import-environment", MORE, 1, import_environment},
6211 { "halt", EQUAL, 1, start_special, FORCE },
6212 { "poweroff", EQUAL, 1, start_special, FORCE },
6213 { "reboot", EQUAL, 1, start_special, FORCE },
6214 { "kexec", EQUAL, 1, start_special },
6215 { "suspend", EQUAL, 1, start_special },
6216 { "hibernate", EQUAL, 1, start_special },
6217 { "hybrid-sleep", EQUAL, 1, start_special },
6218 { "default", EQUAL, 1, start_special },
6219 { "rescue", EQUAL, 1, start_special },
6220 { "emergency", EQUAL, 1, start_special },
6221 { "exit", EQUAL, 1, start_special },
6222 { "reset-failed", MORE, 1, reset_failed },
6223 { "enable", MORE, 2, enable_unit, NOBUS },
6224 { "disable", MORE, 2, enable_unit, NOBUS },
6225 { "is-enabled", MORE, 2, unit_is_enabled, NOBUS },
6226 { "reenable", MORE, 2, enable_unit, NOBUS },
6227 { "preset", MORE, 2, enable_unit, NOBUS },
6228 { "mask", MORE, 2, enable_unit, NOBUS },
6229 { "unmask", MORE, 2, enable_unit, NOBUS },
6230 { "link", MORE, 2, enable_unit, NOBUS },
6231 { "switch-root", MORE, 2, switch_root },
6232 { "list-dependencies", LESS, 2, list_dependencies },
6233 { "set-default", EQUAL, 2, set_default, NOBUS },
6234 { "get-default", EQUAL, 1, get_default, NOBUS },
6235 { "set-property", MORE, 3, set_property },
6236 {}
6237 }, *verb = verbs;
6238
6239 int left;
6240
6241 assert(argc >= 0);
6242 assert(argv);
6243
6244 left = argc - optind;
6245
6246 /* Special rule: no arguments (left == 0) means "list-units" */
6247 if (left > 0) {
6248 if (streq(argv[optind], "help") && !argv[optind+1]) {
6249 log_error("This command expects one or more "
6250 "unit names. Did you mean --help?");
6251 return -EINVAL;
6252 }
6253
6254 for (; verb->verb; verb++)
6255 if (streq(argv[optind], verb->verb))
6256 goto found;
6257
6258 log_error("Unknown operation '%s'.", argv[optind]);
6259 return -EINVAL;
6260 }
6261 found:
6262
6263 switch (verb->argc_cmp) {
6264
6265 case EQUAL:
6266 if (left != verb->argc) {
6267 log_error("Invalid number of arguments.");
6268 return -EINVAL;
6269 }
6270
6271 break;
6272
6273 case MORE:
6274 if (left < verb->argc) {
6275 log_error("Too few arguments.");
6276 return -EINVAL;
6277 }
6278
6279 break;
6280
6281 case LESS:
6282 if (left > verb->argc) {
6283 log_error("Too many arguments.");
6284 return -EINVAL;
6285 }
6286
6287 break;
6288
6289 default:
6290 assert_not_reached("Unknown comparison operator.");
6291 }
6292
6293 /* Require a bus connection for all operations but
6294 * enable/disable */
6295 if (verb->bus == NOBUS) {
6296 if (!bus && !avoid_bus()) {
6297 log_error("Failed to get D-Bus connection: %s", strerror(-bus_error));
6298 return -EIO;
6299 }
6300
6301 } else {
6302 if (running_in_chroot() > 0) {
6303 log_info("Running in chroot, ignoring request.");
6304 return 0;
6305 }
6306
6307 if ((verb->bus != FORCE || arg_force <= 0) && !bus) {
6308 log_error("Failed to get D-Bus connection: %s", strerror(-bus_error));
6309 return -EIO;
6310 }
6311 }
6312
6313 return verb->dispatch(bus, argv + optind);
6314 }
6315
6316 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
6317
6318 struct sd_shutdown_command c = {
6319 .usec = t,
6320 .mode = mode,
6321 .dry_run = dry_run,
6322 .warn_wall = warn,
6323 };
6324
6325 union sockaddr_union sockaddr = {
6326 .un.sun_family = AF_UNIX,
6327 .un.sun_path = "/run/systemd/shutdownd",
6328 };
6329
6330 struct iovec iovec[2] = {{
6331 .iov_base = (char*) &c,
6332 .iov_len = offsetof(struct sd_shutdown_command, wall_message),
6333 }};
6334
6335 struct msghdr msghdr = {
6336 .msg_name = &sockaddr,
6337 .msg_namelen = offsetof(struct sockaddr_un, sun_path)
6338 + sizeof("/run/systemd/shutdownd") - 1,
6339 .msg_iov = iovec,
6340 .msg_iovlen = 1,
6341 };
6342
6343 _cleanup_close_ int fd;
6344
6345 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
6346 if (fd < 0)
6347 return -errno;
6348
6349 if (!isempty(message)) {
6350 iovec[1].iov_base = (char*) message;
6351 iovec[1].iov_len = strlen(message);
6352 msghdr.msg_iovlen++;
6353 }
6354
6355 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
6356 return -errno;
6357
6358 return 0;
6359 }
6360
6361 static int reload_with_fallback(sd_bus *bus) {
6362
6363 if (bus) {
6364 /* First, try systemd via D-Bus. */
6365 if (daemon_reload(bus, NULL) >= 0)
6366 return 0;
6367 }
6368
6369 /* Nothing else worked, so let's try signals */
6370 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
6371
6372 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
6373 log_error("kill() failed: %m");
6374 return -errno;
6375 }
6376
6377 return 0;
6378 }
6379
6380 static int start_with_fallback(sd_bus *bus) {
6381
6382 if (bus) {
6383 /* First, try systemd via D-Bus. */
6384 if (start_unit(bus, NULL) >= 0)
6385 goto done;
6386 }
6387
6388 /* Nothing else worked, so let's try
6389 * /dev/initctl */
6390 if (talk_initctl() > 0)
6391 goto done;
6392
6393 log_error("Failed to talk to init daemon.");
6394 return -EIO;
6395
6396 done:
6397 warn_wall(arg_action);
6398 return 0;
6399 }
6400
6401 static int halt_now(enum action a) {
6402
6403 /* Make sure C-A-D is handled by the kernel from this
6404 * point on... */
6405 reboot(RB_ENABLE_CAD);
6406
6407 switch (a) {
6408
6409 case ACTION_HALT:
6410 log_info("Halting.");
6411 reboot(RB_HALT_SYSTEM);
6412 return -errno;
6413
6414 case ACTION_POWEROFF:
6415 log_info("Powering off.");
6416 reboot(RB_POWER_OFF);
6417 return -errno;
6418
6419 case ACTION_REBOOT: {
6420 _cleanup_free_ char *param = NULL;
6421
6422 if (read_one_line_file(REBOOT_PARAM_FILE, &param) >= 0) {
6423 log_info("Rebooting with argument '%s'.", param);
6424 syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
6425 LINUX_REBOOT_CMD_RESTART2, param);
6426 }
6427
6428 log_info("Rebooting.");
6429 reboot(RB_AUTOBOOT);
6430 return -errno;
6431 }
6432
6433 default:
6434 assert_not_reached("Unknown action.");
6435 }
6436 }
6437
6438 static int halt_main(sd_bus *bus) {
6439 int r;
6440
6441 r = check_inhibitors(bus, arg_action);
6442 if (r < 0)
6443 return r;
6444
6445 if (geteuid() != 0) {
6446 /* Try logind if we are a normal user and no special
6447 * mode applies. Maybe PolicyKit allows us to shutdown
6448 * the machine. */
6449
6450 if (arg_when <= 0 &&
6451 !arg_dry &&
6452 arg_force <= 0 &&
6453 (arg_action == ACTION_POWEROFF ||
6454 arg_action == ACTION_REBOOT)) {
6455 r = reboot_with_logind(bus, arg_action);
6456 if (r >= 0)
6457 return r;
6458 }
6459
6460 log_error("Must be root.");
6461 return -EPERM;
6462 }
6463
6464 if (arg_when > 0) {
6465 _cleanup_free_ char *m;
6466
6467 m = strv_join(arg_wall, " ");
6468 if (!m)
6469 return log_oom();
6470
6471 r = send_shutdownd(arg_when,
6472 arg_action == ACTION_HALT ? 'H' :
6473 arg_action == ACTION_POWEROFF ? 'P' :
6474 arg_action == ACTION_KEXEC ? 'K' :
6475 'r',
6476 arg_dry,
6477 !arg_no_wall,
6478 m);
6479
6480 if (r < 0)
6481 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
6482 else {
6483 char date[FORMAT_TIMESTAMP_MAX];
6484
6485 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
6486 format_timestamp(date, sizeof(date), arg_when));
6487 return 0;
6488 }
6489 }
6490
6491 if (!arg_dry && !arg_force)
6492 return start_with_fallback(bus);
6493
6494 if (!arg_no_wtmp) {
6495 if (sd_booted() > 0)
6496 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
6497 else {
6498 r = utmp_put_shutdown();
6499 if (r < 0)
6500 log_warning("Failed to write utmp record: %s", strerror(-r));
6501 }
6502 }
6503
6504 if (arg_dry)
6505 return 0;
6506
6507 r = halt_now(arg_action);
6508 log_error("Failed to reboot: %s", strerror(-r));
6509
6510 return r;
6511 }
6512
6513 static int runlevel_main(void) {
6514 int r, runlevel, previous;
6515
6516 r = utmp_get_runlevel(&runlevel, &previous);
6517 if (r < 0) {
6518 puts("unknown");
6519 return r;
6520 }
6521
6522 printf("%c %c\n",
6523 previous <= 0 ? 'N' : previous,
6524 runlevel <= 0 ? 'N' : runlevel);
6525
6526 return 0;
6527 }
6528
6529 int main(int argc, char*argv[]) {
6530 _cleanup_bus_unref_ sd_bus *bus = NULL;
6531 int r;
6532
6533 setlocale(LC_ALL, "");
6534 log_parse_environment();
6535 log_open();
6536
6537 /* Explicitly not on_tty() to avoid setting cached value.
6538 * This becomes relevant for piping output which might be
6539 * ellipsized. */
6540 original_stdout_is_tty = isatty(STDOUT_FILENO);
6541
6542 r = parse_argv(argc, argv);
6543 if (r <= 0)
6544 goto finish;
6545
6546 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
6547 * let's shortcut this */
6548 if (arg_action == ACTION_RUNLEVEL) {
6549 r = runlevel_main();
6550 goto finish;
6551 }
6552
6553 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
6554 log_info("Running in chroot, ignoring request.");
6555 r = 0;
6556 goto finish;
6557 }
6558
6559 if (!avoid_bus())
6560 r = bus_open_transport_systemd(arg_transport, arg_host, arg_scope != UNIT_FILE_SYSTEM, &bus);
6561
6562 /* systemctl_main() will print an error message for the bus
6563 * connection, but only if it needs to */
6564
6565 switch (arg_action) {
6566
6567 case ACTION_SYSTEMCTL:
6568 r = systemctl_main(bus, argc, argv, r);
6569 break;
6570
6571 case ACTION_HALT:
6572 case ACTION_POWEROFF:
6573 case ACTION_REBOOT:
6574 case ACTION_KEXEC:
6575 r = halt_main(bus);
6576 break;
6577
6578 case ACTION_RUNLEVEL2:
6579 case ACTION_RUNLEVEL3:
6580 case ACTION_RUNLEVEL4:
6581 case ACTION_RUNLEVEL5:
6582 case ACTION_RESCUE:
6583 case ACTION_EMERGENCY:
6584 case ACTION_DEFAULT:
6585 r = start_with_fallback(bus);
6586 break;
6587
6588 case ACTION_RELOAD:
6589 case ACTION_REEXEC:
6590 r = reload_with_fallback(bus);
6591 break;
6592
6593 case ACTION_CANCEL_SHUTDOWN: {
6594 _cleanup_free_ char *m = NULL;
6595
6596 if (arg_wall) {
6597 m = strv_join(arg_wall, " ");
6598 if (!m) {
6599 r = log_oom();
6600 goto finish;
6601 }
6602 }
6603
6604 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
6605 if (r < 0)
6606 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
6607 break;
6608 }
6609
6610 case ACTION_RUNLEVEL:
6611 case _ACTION_INVALID:
6612 default:
6613 assert_not_reached("Unknown action");
6614 }
6615
6616 finish:
6617 pager_close();
6618 ask_password_agent_close();
6619 polkit_agent_close();
6620
6621 strv_free(arg_types);
6622 strv_free(arg_states);
6623 strv_free(arg_properties);
6624
6625 return r < 0 ? EXIT_FAILURE : r;
6626 }
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