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Merge pull request #9801 from yuwata/analyze-cleanups
[thirdparty/systemd.git] / src / systemctl / systemctl.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2 /***
3 Copyright © 2013 Marc-Antoine Perennou
4 ***/
5
6 #include <errno.h>
7 #include <fcntl.h>
8 #include <getopt.h>
9 #include <locale.h>
10 #include <stdbool.h>
11 #include <stddef.h>
12 #include <stdio.h>
13 #include <string.h>
14 #include <sys/prctl.h>
15 #include <sys/reboot.h>
16 #include <sys/socket.h>
17 #include <unistd.h>
18
19 #include "sd-bus.h"
20 #include "sd-daemon.h"
21 #include "sd-event.h"
22 #include "sd-login.h"
23
24 #include "alloc-util.h"
25 #include "bootspec.h"
26 #include "bus-common-errors.h"
27 #include "bus-error.h"
28 #include "bus-message.h"
29 #include "bus-unit-util.h"
30 #include "bus-util.h"
31 #include "cgroup-show.h"
32 #include "cgroup-util.h"
33 #include "copy.h"
34 #include "dropin.h"
35 #include "efivars.h"
36 #include "env-util.h"
37 #include "escape.h"
38 #include "exit-status.h"
39 #include "fd-util.h"
40 #include "fileio.h"
41 #include "format-util.h"
42 #include "fs-util.h"
43 #include "glob-util.h"
44 #include "hexdecoct.h"
45 #include "hostname-util.h"
46 #include "initreq.h"
47 #include "install.h"
48 #include "io-util.h"
49 #include "list.h"
50 #include "locale-util.h"
51 #include "log.h"
52 #include "logs-show.h"
53 #include "macro.h"
54 #include "mkdir.h"
55 #include "pager.h"
56 #include "parse-util.h"
57 #include "path-lookup.h"
58 #include "path-util.h"
59 #include "process-util.h"
60 #include "reboot-util.h"
61 #include "rlimit-util.h"
62 #include "set.h"
63 #include "sigbus.h"
64 #include "signal-util.h"
65 #include "socket-util.h"
66 #include "spawn-ask-password-agent.h"
67 #include "spawn-polkit-agent.h"
68 #include "special.h"
69 #include "stat-util.h"
70 #include "string-table.h"
71 #include "strv.h"
72 #include "terminal-util.h"
73 #include "unit-def.h"
74 #include "unit-name.h"
75 #include "user-util.h"
76 #include "util.h"
77 #include "utmp-wtmp.h"
78 #include "verbs.h"
79 #include "virt.h"
80
81 /* The init script exit status codes
82 0 program is running or service is OK
83 1 program is dead and /var/run pid file exists
84 2 program is dead and /var/lock lock file exists
85 3 program is not running
86 4 program or service status is unknown
87 5-99 reserved for future LSB use
88 100-149 reserved for distribution use
89 150-199 reserved for application use
90 200-254 reserved
91 */
92 enum {
93 EXIT_PROGRAM_RUNNING_OR_SERVICE_OK = 0,
94 EXIT_PROGRAM_DEAD_AND_PID_EXISTS = 1,
95 EXIT_PROGRAM_DEAD_AND_LOCK_FILE_EXISTS = 2,
96 EXIT_PROGRAM_NOT_RUNNING = 3,
97 EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN = 4,
98 };
99
100 static char **arg_types = NULL;
101 static char **arg_states = NULL;
102 static char **arg_properties = NULL;
103 static bool arg_all = false;
104 static enum dependency {
105 DEPENDENCY_FORWARD,
106 DEPENDENCY_REVERSE,
107 DEPENDENCY_AFTER,
108 DEPENDENCY_BEFORE,
109 _DEPENDENCY_MAX
110 } arg_dependency = DEPENDENCY_FORWARD;
111 static const char *arg_job_mode = "replace";
112 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
113 static bool arg_wait = false;
114 static bool arg_no_block = false;
115 static bool arg_no_legend = false;
116 static bool arg_no_pager = false;
117 static bool arg_no_wtmp = false;
118 static bool arg_no_sync = false;
119 static bool arg_no_wall = false;
120 static bool arg_no_reload = false;
121 static bool arg_value = false;
122 static bool arg_show_types = false;
123 static bool arg_ignore_inhibitors = false;
124 static bool arg_dry_run = false;
125 static bool arg_quiet = false;
126 static bool arg_full = false;
127 static bool arg_recursive = false;
128 static int arg_force = 0;
129 static bool arg_ask_password = false;
130 static bool arg_runtime = false;
131 static UnitFilePresetMode arg_preset_mode = UNIT_FILE_PRESET_FULL;
132 static char **arg_wall = NULL;
133 static const char *arg_kill_who = NULL;
134 static int arg_signal = SIGTERM;
135 static char *arg_root = NULL;
136 static usec_t arg_when = 0;
137 static char *arg_esp_path = NULL;
138 static char *argv_cmdline = NULL;
139 static enum action {
140 ACTION_SYSTEMCTL,
141 ACTION_HALT,
142 ACTION_POWEROFF,
143 ACTION_REBOOT,
144 ACTION_KEXEC,
145 ACTION_EXIT,
146 ACTION_SUSPEND,
147 ACTION_HIBERNATE,
148 ACTION_HYBRID_SLEEP,
149 ACTION_SUSPEND_THEN_HIBERNATE,
150 ACTION_RUNLEVEL2,
151 ACTION_RUNLEVEL3,
152 ACTION_RUNLEVEL4,
153 ACTION_RUNLEVEL5,
154 ACTION_RESCUE,
155 ACTION_EMERGENCY,
156 ACTION_DEFAULT,
157 ACTION_RELOAD,
158 ACTION_REEXEC,
159 ACTION_RUNLEVEL,
160 ACTION_CANCEL_SHUTDOWN,
161 _ACTION_MAX,
162 _ACTION_INVALID = -1
163 } arg_action = ACTION_SYSTEMCTL;
164 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
165 static const char *arg_host = NULL;
166 static unsigned arg_lines = 10;
167 static OutputMode arg_output = OUTPUT_SHORT;
168 static bool arg_plain = false;
169 static bool arg_firmware_setup = false;
170 static bool arg_now = false;
171 static bool arg_jobs_before = false;
172 static bool arg_jobs_after = false;
173
174 static int daemon_reload(int argc, char *argv[], void* userdata);
175 static int trivial_method(int argc, char *argv[], void *userdata);
176 static int halt_now(enum action a);
177 static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state);
178
179 static bool original_stdout_is_tty;
180
181 typedef enum BusFocus {
182 BUS_FULL, /* The full bus indicated via --system or --user */
183 BUS_MANAGER, /* The manager itself, possibly directly, possibly via the bus */
184 _BUS_FOCUS_MAX
185 } BusFocus;
186
187 static sd_bus *busses[_BUS_FOCUS_MAX] = {};
188
189 static UnitFileFlags args_to_flags(void) {
190 return (arg_runtime ? UNIT_FILE_RUNTIME : 0) |
191 (arg_force ? UNIT_FILE_FORCE : 0);
192 }
193
194 static int acquire_bus(BusFocus focus, sd_bus **ret) {
195 int r;
196
197 assert(focus < _BUS_FOCUS_MAX);
198 assert(ret);
199
200 /* We only go directly to the manager, if we are using a local transport */
201 if (arg_transport != BUS_TRANSPORT_LOCAL)
202 focus = BUS_FULL;
203
204 if (getenv_bool("SYSTEMCTL_FORCE_BUS") > 0)
205 focus = BUS_FULL;
206
207 if (!busses[focus]) {
208 bool user;
209
210 user = arg_scope != UNIT_FILE_SYSTEM;
211
212 if (focus == BUS_MANAGER)
213 r = bus_connect_transport_systemd(arg_transport, arg_host, user, &busses[focus]);
214 else
215 r = bus_connect_transport(arg_transport, arg_host, user, &busses[focus]);
216 if (r < 0)
217 return log_error_errno(r, "Failed to connect to bus: %m");
218
219 (void) sd_bus_set_allow_interactive_authorization(busses[focus], arg_ask_password);
220 }
221
222 *ret = busses[focus];
223 return 0;
224 }
225
226 static void release_busses(void) {
227 BusFocus w;
228
229 for (w = 0; w < _BUS_FOCUS_MAX; w++)
230 busses[w] = sd_bus_flush_close_unref(busses[w]);
231 }
232
233 static void ask_password_agent_open_if_enabled(void) {
234 /* Open the password agent as a child process if necessary */
235
236 if (arg_dry_run)
237 return;
238
239 if (!arg_ask_password)
240 return;
241
242 if (arg_scope != UNIT_FILE_SYSTEM)
243 return;
244
245 if (arg_transport != BUS_TRANSPORT_LOCAL)
246 return;
247
248 ask_password_agent_open();
249 }
250
251 static void polkit_agent_open_maybe(void) {
252 /* Open the polkit agent as a child process if necessary */
253
254 if (arg_scope != UNIT_FILE_SYSTEM)
255 return;
256
257 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
258 }
259
260 static OutputFlags get_output_flags(void) {
261 return
262 arg_all * OUTPUT_SHOW_ALL |
263 (arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
264 colors_enabled() * OUTPUT_COLOR |
265 !arg_quiet * OUTPUT_WARN_CUTOFF;
266 }
267
268 static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
269 assert(error);
270
271 if (!sd_bus_error_is_set(error))
272 return r;
273
274 if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) ||
275 sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
276 sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
277 sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
278 return EXIT_NOPERMISSION;
279
280 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
281 return EXIT_NOTINSTALLED;
282
283 if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
284 sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED))
285 return EXIT_NOTIMPLEMENTED;
286
287 if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
288 return EXIT_NOTCONFIGURED;
289
290 if (r != 0)
291 return r;
292
293 return EXIT_FAILURE;
294 }
295
296 static bool install_client_side(void) {
297 /* Decides when to execute enable/disable/... operations
298 * client-side rather than server-side. */
299
300 if (running_in_chroot_or_offline())
301 return true;
302
303 if (sd_booted() <= 0)
304 return true;
305
306 if (!isempty(arg_root))
307 return true;
308
309 if (arg_scope == UNIT_FILE_GLOBAL)
310 return true;
311
312 /* Unsupported environment variable, mostly for debugging purposes */
313 if (getenv_bool("SYSTEMCTL_INSTALL_CLIENT_SIDE") > 0)
314 return true;
315
316 return false;
317 }
318
319 static int compare_unit_info(const void *a, const void *b) {
320 const UnitInfo *u = a, *v = b;
321 const char *d1, *d2;
322 int r;
323
324 /* First, order by machine */
325 if (!u->machine && v->machine)
326 return -1;
327 if (u->machine && !v->machine)
328 return 1;
329 if (u->machine && v->machine) {
330 r = strcasecmp(u->machine, v->machine);
331 if (r != 0)
332 return r;
333 }
334
335 /* Second, order by unit type */
336 d1 = strrchr(u->id, '.');
337 d2 = strrchr(v->id, '.');
338 if (d1 && d2) {
339 r = strcasecmp(d1, d2);
340 if (r != 0)
341 return r;
342 }
343
344 /* Third, order by name */
345 return strcasecmp(u->id, v->id);
346 }
347
348 static const char* unit_type_suffix(const char *name) {
349 const char *dot;
350
351 dot = strrchr(name, '.');
352 if (!dot)
353 return "";
354
355 return dot + 1;
356 }
357
358 static bool output_show_unit(const UnitInfo *u, char **patterns) {
359 assert(u);
360
361 if (!strv_fnmatch_or_empty(patterns, u->id, FNM_NOESCAPE))
362 return false;
363
364 if (arg_types && !strv_find(arg_types, unit_type_suffix(u->id)))
365 return false;
366
367 if (arg_all)
368 return true;
369
370 /* Note that '--all' is not purely a state filter, but also a
371 * filter that hides units that "follow" other units (which is
372 * used for device units that appear under different names). */
373 if (!isempty(u->following))
374 return false;
375
376 if (!strv_isempty(arg_states))
377 return true;
378
379 /* By default show all units except the ones in inactive
380 * state and with no pending job */
381 if (u->job_id > 0)
382 return true;
383
384 if (streq(u->active_state, "inactive"))
385 return false;
386
387 return true;
388 }
389
390 static int output_units_list(const UnitInfo *unit_infos, unsigned c) {
391 unsigned circle_len = 0, id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len, max_desc_len;
392 const UnitInfo *u;
393 unsigned n_shown = 0;
394 int job_count = 0;
395
396 max_id_len = STRLEN("UNIT");
397 load_len = STRLEN("LOAD");
398 active_len = STRLEN("ACTIVE");
399 sub_len = STRLEN("SUB");
400 job_len = STRLEN("JOB");
401 max_desc_len = STRLEN("DESCRIPTION");
402
403 for (u = unit_infos; u < unit_infos + c; u++) {
404 max_id_len = MAX(max_id_len, strlen(u->id) + (u->machine ? strlen(u->machine)+1 : 0));
405 load_len = MAX(load_len, strlen(u->load_state));
406 active_len = MAX(active_len, strlen(u->active_state));
407 sub_len = MAX(sub_len, strlen(u->sub_state));
408 max_desc_len = MAX(max_desc_len, strlen(u->description));
409
410 if (u->job_id != 0) {
411 job_len = MAX(job_len, strlen(u->job_type));
412 job_count++;
413 }
414
415 if (!arg_no_legend &&
416 (streq(u->active_state, "failed") ||
417 STR_IN_SET(u->load_state, "error", "not-found", "bad-setting", "masked")))
418 circle_len = 2;
419 }
420
421 if (!arg_full && original_stdout_is_tty) {
422 unsigned basic_len;
423
424 id_len = MIN(max_id_len, 25u); /* as much as it needs, but at most 25 for now */
425 basic_len = circle_len + 1 + id_len + 1 + load_len + 1 + active_len + 1 + sub_len + 1;
426
427 if (job_count)
428 basic_len += job_len + 1;
429
430 if (basic_len < (unsigned) columns()) {
431 unsigned extra_len, incr;
432 extra_len = columns() - basic_len;
433
434 /* Either UNIT already got 25, or is fully satisfied.
435 * Grant up to 25 to DESC now. */
436 incr = MIN(extra_len, 25u);
437 desc_len = incr;
438 extra_len -= incr;
439
440 /* Of the remainder give as much as the ID needs to the ID, and give the rest to the
441 * description but not more than it needs. */
442 if (extra_len > 0) {
443 incr = MIN(max_id_len - id_len, extra_len);
444 id_len += incr;
445 desc_len += MIN(extra_len - incr, max_desc_len - desc_len);
446 }
447 } else
448 desc_len = 0;
449 } else {
450 id_len = max_id_len;
451 desc_len = max_desc_len;
452 }
453
454 for (u = unit_infos; u < unit_infos + c; u++) {
455 _cleanup_free_ char *e = NULL, *j = NULL;
456 const char *on_underline = "", *off_underline = "";
457 const char *on_loaded = "", *off_loaded = "";
458 const char *on_active = "", *off_active = "";
459 const char *on_circle = "", *off_circle = "";
460 const char *id;
461 bool circle = false, underline = false;
462
463 if (!n_shown && !arg_no_legend) {
464
465 if (circle_len > 0)
466 fputs(" ", stdout);
467
468 printf("%s%-*s %-*s %-*s %-*s ",
469 ansi_underline(),
470 id_len, "UNIT",
471 load_len, "LOAD",
472 active_len, "ACTIVE",
473 sub_len, "SUB");
474
475 if (job_count)
476 printf("%-*s ", job_len, "JOB");
477
478 printf("%-*.*s%s\n",
479 desc_len,
480 !arg_full && arg_no_pager ? (int) desc_len : -1,
481 "DESCRIPTION",
482 ansi_normal());
483 }
484
485 n_shown++;
486
487 if (u + 1 < unit_infos + c &&
488 !streq(unit_type_suffix(u->id), unit_type_suffix((u + 1)->id))) {
489 on_underline = ansi_underline();
490 off_underline = ansi_normal();
491 underline = true;
492 }
493
494 if (STR_IN_SET(u->load_state, "error", "not-found", "bad-setting", "masked") && !arg_plain) {
495 on_circle = ansi_highlight_yellow();
496 off_circle = ansi_normal();
497 circle = true;
498 on_loaded = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
499 off_loaded = underline ? on_underline : ansi_normal();
500 } else if (streq(u->active_state, "failed") && !arg_plain) {
501 on_circle = ansi_highlight_red();
502 off_circle = ansi_normal();
503 circle = true;
504 on_active = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
505 off_active = underline ? on_underline : ansi_normal();
506 }
507
508 if (u->machine) {
509 j = strjoin(u->machine, ":", u->id);
510 if (!j)
511 return log_oom();
512
513 id = j;
514 } else
515 id = u->id;
516
517 if (arg_full) {
518 e = ellipsize(id, id_len, 33);
519 if (!e)
520 return log_oom();
521
522 id = e;
523 }
524
525 if (circle_len > 0)
526 printf("%s%s%s ", on_circle, circle ? special_glyph(BLACK_CIRCLE) : " ", off_circle);
527
528 printf("%s%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
529 on_underline,
530 on_active, id_len, id, off_active,
531 on_loaded, load_len, u->load_state, off_loaded,
532 on_active, active_len, u->active_state,
533 sub_len, u->sub_state, off_active,
534 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
535
536 printf("%-*.*s%s\n",
537 desc_len,
538 !arg_full && arg_no_pager ? (int) desc_len : -1,
539 u->description,
540 off_underline);
541 }
542
543 if (!arg_no_legend) {
544 const char *on, *off;
545
546 if (n_shown) {
547 puts("\n"
548 "LOAD = Reflects whether the unit definition was properly loaded.\n"
549 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
550 "SUB = The low-level unit activation state, values depend on unit type.");
551 puts(job_count ? "JOB = Pending job for the unit.\n" : "");
552 on = ansi_highlight();
553 off = ansi_normal();
554 } else {
555 on = ansi_highlight_red();
556 off = ansi_normal();
557 }
558
559 if (arg_all)
560 printf("%s%u loaded units listed.%s\n"
561 "To show all installed unit files use 'systemctl list-unit-files'.\n",
562 on, n_shown, off);
563 else
564 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
565 "To show all installed unit files use 'systemctl list-unit-files'.\n",
566 on, n_shown, off);
567 }
568
569 return 0;
570 }
571
572 static int get_unit_list(
573 sd_bus *bus,
574 const char *machine,
575 char **patterns,
576 UnitInfo **unit_infos,
577 int c,
578 sd_bus_message **_reply) {
579
580 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
581 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
582 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
583 size_t size = c;
584 int r;
585 UnitInfo u;
586 bool fallback = false;
587
588 assert(bus);
589 assert(unit_infos);
590 assert(_reply);
591
592 r = sd_bus_message_new_method_call(
593 bus,
594 &m,
595 "org.freedesktop.systemd1",
596 "/org/freedesktop/systemd1",
597 "org.freedesktop.systemd1.Manager",
598 "ListUnitsByPatterns");
599 if (r < 0)
600 return bus_log_create_error(r);
601
602 r = sd_bus_message_append_strv(m, arg_states);
603 if (r < 0)
604 return bus_log_create_error(r);
605
606 r = sd_bus_message_append_strv(m, patterns);
607 if (r < 0)
608 return bus_log_create_error(r);
609
610 r = sd_bus_call(bus, m, 0, &error, &reply);
611 if (r < 0 && (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD) ||
612 sd_bus_error_has_name(&error, SD_BUS_ERROR_ACCESS_DENIED))) {
613 /* Fallback to legacy ListUnitsFiltered method */
614 fallback = true;
615 log_debug_errno(r, "Failed to list units: %s Falling back to ListUnitsFiltered method.", bus_error_message(&error, r));
616 m = sd_bus_message_unref(m);
617 sd_bus_error_free(&error);
618
619 r = sd_bus_message_new_method_call(
620 bus,
621 &m,
622 "org.freedesktop.systemd1",
623 "/org/freedesktop/systemd1",
624 "org.freedesktop.systemd1.Manager",
625 "ListUnitsFiltered");
626 if (r < 0)
627 return bus_log_create_error(r);
628
629 r = sd_bus_message_append_strv(m, arg_states);
630 if (r < 0)
631 return bus_log_create_error(r);
632
633 r = sd_bus_call(bus, m, 0, &error, &reply);
634 }
635 if (r < 0)
636 return log_error_errno(r, "Failed to list units: %s", bus_error_message(&error, r));
637
638 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
639 if (r < 0)
640 return bus_log_parse_error(r);
641
642 while ((r = bus_parse_unit_info(reply, &u)) > 0) {
643 u.machine = machine;
644
645 if (!output_show_unit(&u, fallback ? patterns : NULL))
646 continue;
647
648 if (!GREEDY_REALLOC(*unit_infos, size, c+1))
649 return log_oom();
650
651 (*unit_infos)[c++] = u;
652 }
653 if (r < 0)
654 return bus_log_parse_error(r);
655
656 r = sd_bus_message_exit_container(reply);
657 if (r < 0)
658 return bus_log_parse_error(r);
659
660 *_reply = TAKE_PTR(reply);
661
662 return c;
663 }
664
665 static void message_set_freep(Set **set) {
666 set_free_with_destructor(*set, sd_bus_message_unref);
667 }
668
669 static int get_unit_list_recursive(
670 sd_bus *bus,
671 char **patterns,
672 UnitInfo **_unit_infos,
673 Set **_replies,
674 char ***_machines) {
675
676 _cleanup_free_ UnitInfo *unit_infos = NULL;
677 _cleanup_(message_set_freep) Set *replies;
678 sd_bus_message *reply;
679 int c, r;
680
681 assert(bus);
682 assert(_replies);
683 assert(_unit_infos);
684 assert(_machines);
685
686 replies = set_new(NULL);
687 if (!replies)
688 return log_oom();
689
690 c = get_unit_list(bus, NULL, patterns, &unit_infos, 0, &reply);
691 if (c < 0)
692 return c;
693
694 r = set_put(replies, reply);
695 if (r < 0) {
696 sd_bus_message_unref(reply);
697 return log_oom();
698 }
699
700 if (arg_recursive) {
701 _cleanup_strv_free_ char **machines = NULL;
702 char **i;
703
704 r = sd_get_machine_names(&machines);
705 if (r < 0)
706 return log_error_errno(r, "Failed to get machine names: %m");
707
708 STRV_FOREACH(i, machines) {
709 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL;
710 int k;
711
712 r = sd_bus_open_system_machine(&container, *i);
713 if (r < 0) {
714 log_warning_errno(r, "Failed to connect to container %s, ignoring: %m", *i);
715 continue;
716 }
717
718 k = get_unit_list(container, *i, patterns, &unit_infos, c, &reply);
719 if (k < 0)
720 return k;
721
722 c = k;
723
724 r = set_put(replies, reply);
725 if (r < 0) {
726 sd_bus_message_unref(reply);
727 return log_oom();
728 }
729 }
730
731 *_machines = TAKE_PTR(machines);
732 } else
733 *_machines = NULL;
734
735 *_unit_infos = TAKE_PTR(unit_infos);
736
737 *_replies = TAKE_PTR(replies);
738
739 return c;
740 }
741
742 static int list_units(int argc, char *argv[], void *userdata) {
743 _cleanup_free_ UnitInfo *unit_infos = NULL;
744 _cleanup_(message_set_freep) Set *replies = NULL;
745 _cleanup_strv_free_ char **machines = NULL;
746 sd_bus *bus;
747 int r;
748
749 r = acquire_bus(BUS_MANAGER, &bus);
750 if (r < 0)
751 return r;
752
753 (void) pager_open(arg_no_pager, false);
754
755 r = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
756 if (r < 0)
757 return r;
758
759 qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
760 return output_units_list(unit_infos, r);
761 }
762
763 static int get_triggered_units(
764 sd_bus *bus,
765 const char* path,
766 char*** ret) {
767
768 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
769 int r;
770
771 assert(bus);
772 assert(path);
773 assert(ret);
774
775 r = sd_bus_get_property_strv(
776 bus,
777 "org.freedesktop.systemd1",
778 path,
779 "org.freedesktop.systemd1.Unit",
780 "Triggers",
781 &error,
782 ret);
783 if (r < 0)
784 return log_error_errno(r, "Failed to determine triggers: %s", bus_error_message(&error, r));
785
786 return 0;
787 }
788
789 static int get_listening(
790 sd_bus *bus,
791 const char* unit_path,
792 char*** listening) {
793
794 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
795 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
796 const char *type, *path;
797 int r, n = 0;
798
799 r = sd_bus_get_property(
800 bus,
801 "org.freedesktop.systemd1",
802 unit_path,
803 "org.freedesktop.systemd1.Socket",
804 "Listen",
805 &error,
806 &reply,
807 "a(ss)");
808 if (r < 0)
809 return log_error_errno(r, "Failed to get list of listening sockets: %s", bus_error_message(&error, r));
810
811 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
812 if (r < 0)
813 return bus_log_parse_error(r);
814
815 while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) {
816
817 r = strv_extend(listening, type);
818 if (r < 0)
819 return log_oom();
820
821 r = strv_extend(listening, path);
822 if (r < 0)
823 return log_oom();
824
825 n++;
826 }
827 if (r < 0)
828 return bus_log_parse_error(r);
829
830 r = sd_bus_message_exit_container(reply);
831 if (r < 0)
832 return bus_log_parse_error(r);
833
834 return n;
835 }
836
837 struct socket_info {
838 const char *machine;
839 const char* id;
840
841 char* type;
842 char* path;
843
844 /* Note: triggered is a list here, although it almost certainly
845 * will always be one unit. Nevertheless, dbus API allows for multiple
846 * values, so let's follow that. */
847 char** triggered;
848
849 /* The strv above is shared. free is set only in the first one. */
850 bool own_triggered;
851 };
852
853 static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) {
854 int o;
855
856 assert(a);
857 assert(b);
858
859 if (!a->machine && b->machine)
860 return -1;
861 if (a->machine && !b->machine)
862 return 1;
863 if (a->machine && b->machine) {
864 o = strcasecmp(a->machine, b->machine);
865 if (o != 0)
866 return o;
867 }
868
869 o = strcmp(a->path, b->path);
870 if (o == 0)
871 o = strcmp(a->type, b->type);
872
873 return o;
874 }
875
876 static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
877 struct socket_info *s;
878 unsigned pathlen = STRLEN("LISTEN"),
879 typelen = STRLEN("TYPE") * arg_show_types,
880 socklen = STRLEN("UNIT"),
881 servlen = STRLEN("ACTIVATES");
882 const char *on, *off;
883
884 for (s = socket_infos; s < socket_infos + cs; s++) {
885 unsigned tmp = 0;
886 char **a;
887
888 socklen = MAX(socklen, strlen(s->id));
889 if (arg_show_types)
890 typelen = MAX(typelen, strlen(s->type));
891 pathlen = MAX(pathlen, strlen(s->path) + (s->machine ? strlen(s->machine)+1 : 0));
892
893 STRV_FOREACH(a, s->triggered)
894 tmp += strlen(*a) + 2*(a != s->triggered);
895 servlen = MAX(servlen, tmp);
896 }
897
898 if (cs) {
899 if (!arg_no_legend)
900 printf("%-*s %-*.*s%-*s %s\n",
901 pathlen, "LISTEN",
902 typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
903 socklen, "UNIT",
904 "ACTIVATES");
905
906 for (s = socket_infos; s < socket_infos + cs; s++) {
907 _cleanup_free_ char *j = NULL;
908 const char *path;
909 char **a;
910
911 if (s->machine) {
912 j = strjoin(s->machine, ":", s->path);
913 if (!j)
914 return log_oom();
915 path = j;
916 } else
917 path = s->path;
918
919 if (arg_show_types)
920 printf("%-*s %-*s %-*s",
921 pathlen, path, typelen, s->type, socklen, s->id);
922 else
923 printf("%-*s %-*s",
924 pathlen, path, socklen, s->id);
925 STRV_FOREACH(a, s->triggered)
926 printf("%s %s",
927 a == s->triggered ? "" : ",", *a);
928 printf("\n");
929 }
930
931 on = ansi_highlight();
932 off = ansi_normal();
933 if (!arg_no_legend)
934 printf("\n");
935 } else {
936 on = ansi_highlight_red();
937 off = ansi_normal();
938 }
939
940 if (!arg_no_legend) {
941 printf("%s%u sockets listed.%s\n", on, cs, off);
942 if (!arg_all)
943 printf("Pass --all to see loaded but inactive sockets, too.\n");
944 }
945
946 return 0;
947 }
948
949 static int list_sockets(int argc, char *argv[], void *userdata) {
950 _cleanup_(message_set_freep) Set *replies = NULL;
951 _cleanup_strv_free_ char **machines = NULL;
952 _cleanup_free_ UnitInfo *unit_infos = NULL;
953 _cleanup_free_ struct socket_info *socket_infos = NULL;
954 const UnitInfo *u;
955 struct socket_info *s;
956 unsigned cs = 0;
957 size_t size = 0;
958 int r = 0, n;
959 sd_bus *bus;
960
961 r = acquire_bus(BUS_MANAGER, &bus);
962 if (r < 0)
963 return r;
964
965 (void) pager_open(arg_no_pager, false);
966
967 n = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
968 if (n < 0)
969 return n;
970
971 for (u = unit_infos; u < unit_infos + n; u++) {
972 _cleanup_strv_free_ char **listening = NULL, **triggered = NULL;
973 int i, c;
974
975 if (!endswith(u->id, ".socket"))
976 continue;
977
978 r = get_triggered_units(bus, u->unit_path, &triggered);
979 if (r < 0)
980 goto cleanup;
981
982 c = get_listening(bus, u->unit_path, &listening);
983 if (c < 0) {
984 r = c;
985 goto cleanup;
986 }
987
988 if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
989 r = log_oom();
990 goto cleanup;
991 }
992
993 for (i = 0; i < c; i++)
994 socket_infos[cs + i] = (struct socket_info) {
995 .machine = u->machine,
996 .id = u->id,
997 .type = listening[i*2],
998 .path = listening[i*2 + 1],
999 .triggered = triggered,
1000 .own_triggered = i==0,
1001 };
1002
1003 /* from this point on we will cleanup those socket_infos */
1004 cs += c;
1005 free(listening);
1006 listening = triggered = NULL; /* avoid cleanup */
1007 }
1008
1009 qsort_safe(socket_infos, cs, sizeof(struct socket_info),
1010 (__compar_fn_t) socket_info_compare);
1011
1012 output_sockets_list(socket_infos, cs);
1013
1014 cleanup:
1015 assert(cs == 0 || socket_infos);
1016 for (s = socket_infos; s < socket_infos + cs; s++) {
1017 free(s->type);
1018 free(s->path);
1019 if (s->own_triggered)
1020 strv_free(s->triggered);
1021 }
1022
1023 return r;
1024 }
1025
1026 static int get_next_elapse(
1027 sd_bus *bus,
1028 const char *path,
1029 dual_timestamp *next) {
1030
1031 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1032 dual_timestamp t;
1033 int r;
1034
1035 assert(bus);
1036 assert(path);
1037 assert(next);
1038
1039 r = sd_bus_get_property_trivial(
1040 bus,
1041 "org.freedesktop.systemd1",
1042 path,
1043 "org.freedesktop.systemd1.Timer",
1044 "NextElapseUSecMonotonic",
1045 &error,
1046 't',
1047 &t.monotonic);
1048 if (r < 0)
1049 return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r));
1050
1051 r = sd_bus_get_property_trivial(
1052 bus,
1053 "org.freedesktop.systemd1",
1054 path,
1055 "org.freedesktop.systemd1.Timer",
1056 "NextElapseUSecRealtime",
1057 &error,
1058 't',
1059 &t.realtime);
1060 if (r < 0)
1061 return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r));
1062
1063 *next = t;
1064 return 0;
1065 }
1066
1067 static int get_last_trigger(
1068 sd_bus *bus,
1069 const char *path,
1070 usec_t *last) {
1071
1072 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1073 int r;
1074
1075 assert(bus);
1076 assert(path);
1077 assert(last);
1078
1079 r = sd_bus_get_property_trivial(
1080 bus,
1081 "org.freedesktop.systemd1",
1082 path,
1083 "org.freedesktop.systemd1.Timer",
1084 "LastTriggerUSec",
1085 &error,
1086 't',
1087 last);
1088 if (r < 0)
1089 return log_error_errno(r, "Failed to get last trigger time: %s", bus_error_message(&error, r));
1090
1091 return 0;
1092 }
1093
1094 struct timer_info {
1095 const char* machine;
1096 const char* id;
1097 usec_t next_elapse;
1098 usec_t last_trigger;
1099 char** triggered;
1100 };
1101
1102 static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
1103 int o;
1104
1105 assert(a);
1106 assert(b);
1107
1108 if (!a->machine && b->machine)
1109 return -1;
1110 if (a->machine && !b->machine)
1111 return 1;
1112 if (a->machine && b->machine) {
1113 o = strcasecmp(a->machine, b->machine);
1114 if (o != 0)
1115 return o;
1116 }
1117
1118 if (a->next_elapse < b->next_elapse)
1119 return -1;
1120 if (a->next_elapse > b->next_elapse)
1121 return 1;
1122
1123 return strcmp(a->id, b->id);
1124 }
1125
1126 static int output_timers_list(struct timer_info *timer_infos, unsigned n) {
1127 struct timer_info *t;
1128 unsigned
1129 nextlen = STRLEN("NEXT"),
1130 leftlen = STRLEN("LEFT"),
1131 lastlen = STRLEN("LAST"),
1132 passedlen = STRLEN("PASSED"),
1133 unitlen = STRLEN("UNIT"),
1134 activatelen = STRLEN("ACTIVATES");
1135
1136 const char *on, *off;
1137
1138 assert(timer_infos || n == 0);
1139
1140 for (t = timer_infos; t < timer_infos + n; t++) {
1141 unsigned ul = 0;
1142 char **a;
1143
1144 if (t->next_elapse > 0) {
1145 char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
1146
1147 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
1148 nextlen = MAX(nextlen, strlen(tstamp) + 1);
1149
1150 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
1151 leftlen = MAX(leftlen, strlen(trel));
1152 }
1153
1154 if (t->last_trigger > 0) {
1155 char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
1156
1157 format_timestamp(tstamp, sizeof(tstamp), t->last_trigger);
1158 lastlen = MAX(lastlen, strlen(tstamp) + 1);
1159
1160 format_timestamp_relative(trel, sizeof(trel), t->last_trigger);
1161 passedlen = MAX(passedlen, strlen(trel));
1162 }
1163
1164 unitlen = MAX(unitlen, strlen(t->id) + (t->machine ? strlen(t->machine)+1 : 0));
1165
1166 STRV_FOREACH(a, t->triggered)
1167 ul += strlen(*a) + 2*(a != t->triggered);
1168
1169 activatelen = MAX(activatelen, ul);
1170 }
1171
1172 if (n > 0) {
1173 if (!arg_no_legend)
1174 printf("%-*s %-*s %-*s %-*s %-*s %s\n",
1175 nextlen, "NEXT",
1176 leftlen, "LEFT",
1177 lastlen, "LAST",
1178 passedlen, "PASSED",
1179 unitlen, "UNIT",
1180 "ACTIVATES");
1181
1182 for (t = timer_infos; t < timer_infos + n; t++) {
1183 _cleanup_free_ char *j = NULL;
1184 const char *unit;
1185 char tstamp1[FORMAT_TIMESTAMP_MAX] = "n/a", trel1[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
1186 char tstamp2[FORMAT_TIMESTAMP_MAX] = "n/a", trel2[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
1187 char **a;
1188
1189 format_timestamp(tstamp1, sizeof(tstamp1), t->next_elapse);
1190 format_timestamp_relative(trel1, sizeof(trel1), t->next_elapse);
1191
1192 format_timestamp(tstamp2, sizeof(tstamp2), t->last_trigger);
1193 format_timestamp_relative(trel2, sizeof(trel2), t->last_trigger);
1194
1195 if (t->machine) {
1196 j = strjoin(t->machine, ":", t->id);
1197 if (!j)
1198 return log_oom();
1199 unit = j;
1200 } else
1201 unit = t->id;
1202
1203 printf("%-*s %-*s %-*s %-*s %-*s",
1204 nextlen, tstamp1, leftlen, trel1, lastlen, tstamp2, passedlen, trel2, unitlen, unit);
1205
1206 STRV_FOREACH(a, t->triggered)
1207 printf("%s %s",
1208 a == t->triggered ? "" : ",", *a);
1209 printf("\n");
1210 }
1211
1212 on = ansi_highlight();
1213 off = ansi_normal();
1214 if (!arg_no_legend)
1215 printf("\n");
1216 } else {
1217 on = ansi_highlight_red();
1218 off = ansi_normal();
1219 }
1220
1221 if (!arg_no_legend) {
1222 printf("%s%u timers listed.%s\n", on, n, off);
1223 if (!arg_all)
1224 printf("Pass --all to see loaded but inactive timers, too.\n");
1225 }
1226
1227 return 0;
1228 }
1229
1230 static usec_t calc_next_elapse(dual_timestamp *nw, dual_timestamp *next) {
1231 usec_t next_elapse;
1232
1233 assert(nw);
1234 assert(next);
1235
1236 if (next->monotonic != USEC_INFINITY && next->monotonic > 0) {
1237 usec_t converted;
1238
1239 if (next->monotonic > nw->monotonic)
1240 converted = nw->realtime + (next->monotonic - nw->monotonic);
1241 else
1242 converted = nw->realtime - (nw->monotonic - next->monotonic);
1243
1244 if (next->realtime != USEC_INFINITY && next->realtime > 0)
1245 next_elapse = MIN(converted, next->realtime);
1246 else
1247 next_elapse = converted;
1248
1249 } else
1250 next_elapse = next->realtime;
1251
1252 return next_elapse;
1253 }
1254
1255 static int list_timers(int argc, char *argv[], void *userdata) {
1256 _cleanup_(message_set_freep) Set *replies = NULL;
1257 _cleanup_strv_free_ char **machines = NULL;
1258 _cleanup_free_ struct timer_info *timer_infos = NULL;
1259 _cleanup_free_ UnitInfo *unit_infos = NULL;
1260 struct timer_info *t;
1261 const UnitInfo *u;
1262 size_t size = 0;
1263 int n, c = 0;
1264 dual_timestamp nw;
1265 sd_bus *bus;
1266 int r = 0;
1267
1268 r = acquire_bus(BUS_MANAGER, &bus);
1269 if (r < 0)
1270 return r;
1271
1272 (void) pager_open(arg_no_pager, false);
1273
1274 n = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
1275 if (n < 0)
1276 return n;
1277
1278 dual_timestamp_get(&nw);
1279
1280 for (u = unit_infos; u < unit_infos + n; u++) {
1281 _cleanup_strv_free_ char **triggered = NULL;
1282 dual_timestamp next = DUAL_TIMESTAMP_NULL;
1283 usec_t m, last = 0;
1284
1285 if (!endswith(u->id, ".timer"))
1286 continue;
1287
1288 r = get_triggered_units(bus, u->unit_path, &triggered);
1289 if (r < 0)
1290 goto cleanup;
1291
1292 r = get_next_elapse(bus, u->unit_path, &next);
1293 if (r < 0)
1294 goto cleanup;
1295
1296 get_last_trigger(bus, u->unit_path, &last);
1297
1298 if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
1299 r = log_oom();
1300 goto cleanup;
1301 }
1302
1303 m = calc_next_elapse(&nw, &next);
1304
1305 timer_infos[c++] = (struct timer_info) {
1306 .machine = u->machine,
1307 .id = u->id,
1308 .next_elapse = m,
1309 .last_trigger = last,
1310 .triggered = TAKE_PTR(triggered),
1311 };
1312 }
1313
1314 qsort_safe(timer_infos, c, sizeof(struct timer_info),
1315 (__compar_fn_t) timer_info_compare);
1316
1317 output_timers_list(timer_infos, c);
1318
1319 cleanup:
1320 for (t = timer_infos; t < timer_infos + c; t++)
1321 strv_free(t->triggered);
1322
1323 return r;
1324 }
1325
1326 static int compare_unit_file_list(const void *a, const void *b) {
1327 const char *d1, *d2;
1328 const UnitFileList *u = a, *v = b;
1329
1330 d1 = strrchr(u->path, '.');
1331 d2 = strrchr(v->path, '.');
1332
1333 if (d1 && d2) {
1334 int r;
1335
1336 r = strcasecmp(d1, d2);
1337 if (r != 0)
1338 return r;
1339 }
1340
1341 return strcasecmp(basename(u->path), basename(v->path));
1342 }
1343
1344 static bool output_show_unit_file(const UnitFileList *u, char **states, char **patterns) {
1345 assert(u);
1346
1347 if (!strv_fnmatch_or_empty(patterns, basename(u->path), FNM_NOESCAPE))
1348 return false;
1349
1350 if (!strv_isempty(arg_types)) {
1351 const char *dot;
1352
1353 dot = strrchr(u->path, '.');
1354 if (!dot)
1355 return false;
1356
1357 if (!strv_find(arg_types, dot+1))
1358 return false;
1359 }
1360
1361 if (!strv_isempty(states) &&
1362 !strv_find(states, unit_file_state_to_string(u->state)))
1363 return false;
1364
1365 return true;
1366 }
1367
1368 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
1369 unsigned max_id_len, id_cols, state_cols;
1370 const UnitFileList *u;
1371
1372 max_id_len = STRLEN("UNIT FILE");
1373 state_cols = STRLEN("STATE");
1374
1375 for (u = units; u < units + c; u++) {
1376 max_id_len = MAX(max_id_len, strlen(basename(u->path)));
1377 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
1378 }
1379
1380 if (!arg_full) {
1381 unsigned basic_cols;
1382
1383 id_cols = MIN(max_id_len, 25u);
1384 basic_cols = 1 + id_cols + state_cols;
1385 if (basic_cols < (unsigned) columns())
1386 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
1387 } else
1388 id_cols = max_id_len;
1389
1390 if (!arg_no_legend && c > 0)
1391 printf("%s%-*s %-*s%s\n",
1392 ansi_underline(),
1393 id_cols, "UNIT FILE",
1394 state_cols, "STATE",
1395 ansi_normal());
1396
1397 for (u = units; u < units + c; u++) {
1398 const char *on_underline = NULL, *on_color = NULL, *off = NULL, *id;
1399 _cleanup_free_ char *e = NULL;
1400 bool underline;
1401
1402 underline = u + 1 < units + c &&
1403 !streq(unit_type_suffix(u->path), unit_type_suffix((u + 1)->path));
1404
1405 if (underline)
1406 on_underline = ansi_underline();
1407
1408 if (IN_SET(u->state,
1409 UNIT_FILE_MASKED,
1410 UNIT_FILE_MASKED_RUNTIME,
1411 UNIT_FILE_DISABLED,
1412 UNIT_FILE_BAD))
1413 on_color = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
1414 else if (u->state == UNIT_FILE_ENABLED)
1415 on_color = underline ? ansi_highlight_green_underline() : ansi_highlight_green();
1416
1417 if (on_underline || on_color)
1418 off = ansi_normal();
1419
1420 id = basename(u->path);
1421
1422 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
1423
1424 printf("%s%-*s %s%-*s%s\n",
1425 strempty(on_underline),
1426 id_cols, e ? e : id,
1427 strempty(on_color), state_cols, unit_file_state_to_string(u->state), strempty(off));
1428 }
1429
1430 if (!arg_no_legend)
1431 printf("\n%u unit files listed.\n", c);
1432 }
1433
1434 static int list_unit_files(int argc, char *argv[], void *userdata) {
1435 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1436 _cleanup_free_ UnitFileList *units = NULL;
1437 UnitFileList *unit;
1438 size_t size = 0;
1439 unsigned c = 0;
1440 const char *state;
1441 char *path;
1442 int r;
1443 bool fallback = false;
1444
1445 if (install_client_side()) {
1446 Hashmap *h;
1447 UnitFileList *u;
1448 Iterator i;
1449 unsigned n_units;
1450
1451 h = hashmap_new(&string_hash_ops);
1452 if (!h)
1453 return log_oom();
1454
1455 r = unit_file_get_list(arg_scope, arg_root, h, arg_states, strv_skip(argv, 1));
1456 if (r < 0) {
1457 unit_file_list_free(h);
1458 return log_error_errno(r, "Failed to get unit file list: %m");
1459 }
1460
1461 n_units = hashmap_size(h);
1462
1463 units = new(UnitFileList, n_units ?: 1); /* avoid malloc(0) */
1464 if (!units) {
1465 unit_file_list_free(h);
1466 return log_oom();
1467 }
1468
1469 HASHMAP_FOREACH(u, h, i) {
1470 if (!output_show_unit_file(u, NULL, NULL))
1471 continue;
1472
1473 units[c++] = *u;
1474 free(u);
1475 }
1476
1477 assert(c <= n_units);
1478 hashmap_free(h);
1479
1480 r = 0;
1481 } else {
1482 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1483 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1484 sd_bus *bus;
1485
1486 r = acquire_bus(BUS_MANAGER, &bus);
1487 if (r < 0)
1488 return r;
1489
1490 r = sd_bus_message_new_method_call(
1491 bus,
1492 &m,
1493 "org.freedesktop.systemd1",
1494 "/org/freedesktop/systemd1",
1495 "org.freedesktop.systemd1.Manager",
1496 "ListUnitFilesByPatterns");
1497 if (r < 0)
1498 return bus_log_create_error(r);
1499
1500 r = sd_bus_message_append_strv(m, arg_states);
1501 if (r < 0)
1502 return bus_log_create_error(r);
1503
1504 r = sd_bus_message_append_strv(m, strv_skip(argv, 1));
1505 if (r < 0)
1506 return bus_log_create_error(r);
1507
1508 r = sd_bus_call(bus, m, 0, &error, &reply);
1509 if (r < 0 && sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)) {
1510 /* Fallback to legacy ListUnitFiles method */
1511 fallback = true;
1512 log_debug_errno(r, "Failed to list unit files: %s Falling back to ListUnitsFiles method.", bus_error_message(&error, r));
1513 m = sd_bus_message_unref(m);
1514 sd_bus_error_free(&error);
1515
1516 r = sd_bus_message_new_method_call(
1517 bus,
1518 &m,
1519 "org.freedesktop.systemd1",
1520 "/org/freedesktop/systemd1",
1521 "org.freedesktop.systemd1.Manager",
1522 "ListUnitFiles");
1523 if (r < 0)
1524 return bus_log_create_error(r);
1525
1526 r = sd_bus_call(bus, m, 0, &error, &reply);
1527 }
1528 if (r < 0)
1529 return log_error_errno(r, "Failed to list unit files: %s", bus_error_message(&error, r));
1530
1531 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
1532 if (r < 0)
1533 return bus_log_parse_error(r);
1534
1535 while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
1536
1537 if (!GREEDY_REALLOC(units, size, c + 1))
1538 return log_oom();
1539
1540 units[c] = (struct UnitFileList) {
1541 path,
1542 unit_file_state_from_string(state)
1543 };
1544
1545 if (output_show_unit_file(&units[c],
1546 fallback ? arg_states : NULL,
1547 fallback ? strv_skip(argv, 1) : NULL))
1548 c++;
1549
1550 }
1551 if (r < 0)
1552 return bus_log_parse_error(r);
1553
1554 r = sd_bus_message_exit_container(reply);
1555 if (r < 0)
1556 return bus_log_parse_error(r);
1557 }
1558
1559 (void) pager_open(arg_no_pager, false);
1560
1561 qsort_safe(units, c, sizeof(UnitFileList), compare_unit_file_list);
1562 output_unit_file_list(units, c);
1563
1564 if (install_client_side())
1565 for (unit = units; unit < units + c; unit++)
1566 free(unit->path);
1567
1568 return 0;
1569 }
1570
1571 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
1572 _cleanup_free_ char *n = NULL;
1573 size_t max_len = MAX(columns(),20u);
1574 size_t len = 0;
1575 int i;
1576
1577 if (!arg_plain) {
1578
1579 for (i = level - 1; i >= 0; i--) {
1580 len += 2;
1581 if (len > max_len - 3 && !arg_full) {
1582 printf("%s...\n",max_len % 2 ? "" : " ");
1583 return 0;
1584 }
1585 printf("%s", special_glyph(branches & (1 << i) ? TREE_VERTICAL : TREE_SPACE));
1586 }
1587 len += 2;
1588
1589 if (len > max_len - 3 && !arg_full) {
1590 printf("%s...\n",max_len % 2 ? "" : " ");
1591 return 0;
1592 }
1593
1594 printf("%s", special_glyph(last ? TREE_RIGHT : TREE_BRANCH));
1595 }
1596
1597 if (arg_full) {
1598 printf("%s\n", name);
1599 return 0;
1600 }
1601
1602 n = ellipsize(name, max_len-len, 100);
1603 if (!n)
1604 return log_oom();
1605
1606 printf("%s\n", n);
1607 return 0;
1608 }
1609
1610 static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
1611 struct DependencyStatusInfo {
1612 char **dep[5];
1613 } info = {};
1614
1615 static const struct bus_properties_map map[_DEPENDENCY_MAX][6] = {
1616 [DEPENDENCY_FORWARD] = {
1617 { "Requires", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) },
1618 { "Requisite", "as", NULL, offsetof(struct DependencyStatusInfo, dep[1]) },
1619 { "Wants", "as", NULL, offsetof(struct DependencyStatusInfo, dep[2]) },
1620 { "ConsistsOf", "as", NULL, offsetof(struct DependencyStatusInfo, dep[3]) },
1621 { "BindsTo", "as", NULL, offsetof(struct DependencyStatusInfo, dep[4]) },
1622 {}
1623 },
1624 [DEPENDENCY_REVERSE] = {
1625 { "RequiredBy", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) },
1626 { "RequisiteOf", "as", NULL, offsetof(struct DependencyStatusInfo, dep[1]) },
1627 { "WantedBy", "as", NULL, offsetof(struct DependencyStatusInfo, dep[2]) },
1628 { "PartOf", "as", NULL, offsetof(struct DependencyStatusInfo, dep[3]) },
1629 { "BoundBy", "as", NULL, offsetof(struct DependencyStatusInfo, dep[4]) },
1630 {}
1631 },
1632 [DEPENDENCY_AFTER] = {
1633 { "After", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) },
1634 {}
1635 },
1636 [DEPENDENCY_BEFORE] = {
1637 { "Before", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) },
1638 {}
1639 },
1640 };
1641
1642 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1643 _cleanup_strv_free_ char **ret = NULL;
1644 _cleanup_free_ char *path = NULL;
1645 int i, r;
1646
1647 assert(bus);
1648 assert(name);
1649 assert(deps);
1650
1651 path = unit_dbus_path_from_name(name);
1652 if (!path)
1653 return log_oom();
1654
1655 r = bus_map_all_properties(bus,
1656 "org.freedesktop.systemd1",
1657 path,
1658 map[arg_dependency],
1659 BUS_MAP_STRDUP,
1660 &error,
1661 NULL,
1662 &info);
1663 if (r < 0)
1664 return log_error_errno(r, "Failed to get properties of %s: %s", name, bus_error_message(&error, r));
1665
1666 if (IN_SET(arg_dependency, DEPENDENCY_AFTER, DEPENDENCY_BEFORE)) {
1667 *deps = info.dep[0];
1668 return 0;
1669 }
1670
1671 for (i = 0; i < 5; i++) {
1672 r = strv_extend_strv(&ret, info.dep[i], true);
1673 if (r < 0)
1674 return log_oom();
1675 info.dep[i] = strv_free(info.dep[i]);
1676 }
1677
1678 *deps = TAKE_PTR(ret);
1679
1680 return 0;
1681 }
1682
1683 static int list_dependencies_compare(const void *_a, const void *_b) {
1684 const char **a = (const char**) _a, **b = (const char**) _b;
1685
1686 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1687 return 1;
1688 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1689 return -1;
1690
1691 return strcasecmp(*a, *b);
1692 }
1693
1694 static int list_dependencies_one(
1695 sd_bus *bus,
1696 const char *name,
1697 int level,
1698 char ***units,
1699 unsigned int branches) {
1700
1701 _cleanup_strv_free_ char **deps = NULL;
1702 char **c;
1703 int r = 0;
1704
1705 assert(bus);
1706 assert(name);
1707 assert(units);
1708
1709 r = strv_extend(units, name);
1710 if (r < 0)
1711 return log_oom();
1712
1713 r = list_dependencies_get_dependencies(bus, name, &deps);
1714 if (r < 0)
1715 return r;
1716
1717 qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1718
1719 STRV_FOREACH(c, deps) {
1720 if (strv_contains(*units, *c)) {
1721 if (!arg_plain) {
1722 printf(" ");
1723 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1724 if (r < 0)
1725 return r;
1726 }
1727 continue;
1728 }
1729
1730 if (arg_plain)
1731 printf(" ");
1732 else {
1733 UnitActiveState active_state = _UNIT_ACTIVE_STATE_INVALID;
1734 const char *on;
1735
1736 (void) get_state_one_unit(bus, *c, &active_state);
1737
1738 switch (active_state) {
1739 case UNIT_ACTIVE:
1740 case UNIT_RELOADING:
1741 case UNIT_ACTIVATING:
1742 on = ansi_highlight_green();
1743 break;
1744
1745 case UNIT_INACTIVE:
1746 case UNIT_DEACTIVATING:
1747 on = ansi_normal();
1748 break;
1749
1750 default:
1751 on = ansi_highlight_red();
1752 break;
1753 }
1754
1755 printf("%s%s%s ", on, special_glyph(BLACK_CIRCLE), ansi_normal());
1756 }
1757
1758 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1759 if (r < 0)
1760 return r;
1761
1762 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1763 r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (c[1] == NULL ? 0 : 1));
1764 if (r < 0)
1765 return r;
1766 }
1767 }
1768
1769 if (!arg_plain)
1770 strv_remove(*units, name);
1771
1772 return 0;
1773 }
1774
1775 static int list_dependencies(int argc, char *argv[], void *userdata) {
1776 _cleanup_strv_free_ char **units = NULL;
1777 _cleanup_free_ char *unit = NULL;
1778 const char *u;
1779 sd_bus *bus;
1780 int r;
1781
1782 if (argv[1]) {
1783 r = unit_name_mangle(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, &unit);
1784 if (r < 0)
1785 return log_error_errno(r, "Failed to mangle unit name: %m");
1786
1787 u = unit;
1788 } else
1789 u = SPECIAL_DEFAULT_TARGET;
1790
1791 r = acquire_bus(BUS_MANAGER, &bus);
1792 if (r < 0)
1793 return r;
1794
1795 (void) pager_open(arg_no_pager, false);
1796
1797 puts(u);
1798
1799 return list_dependencies_one(bus, u, 0, &units, 0);
1800 }
1801
1802 struct machine_info {
1803 bool is_host;
1804 char *name;
1805 char *state;
1806 char *control_group;
1807 uint32_t n_failed_units;
1808 uint32_t n_jobs;
1809 usec_t timestamp;
1810 };
1811
1812 static const struct bus_properties_map machine_info_property_map[] = {
1813 { "SystemState", "s", NULL, offsetof(struct machine_info, state) },
1814 { "NJobs", "u", NULL, offsetof(struct machine_info, n_jobs) },
1815 { "NFailedUnits", "u", NULL, offsetof(struct machine_info, n_failed_units) },
1816 { "ControlGroup", "s", NULL, offsetof(struct machine_info, control_group) },
1817 { "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp) },
1818 {}
1819 };
1820
1821 static void machine_info_clear(struct machine_info *info) {
1822 assert(info);
1823
1824 free(info->name);
1825 free(info->state);
1826 free(info->control_group);
1827 zero(*info);
1828 }
1829
1830 static void free_machines_list(struct machine_info *machine_infos, int n) {
1831 int i;
1832
1833 if (!machine_infos)
1834 return;
1835
1836 for (i = 0; i < n; i++)
1837 machine_info_clear(&machine_infos[i]);
1838
1839 free(machine_infos);
1840 }
1841
1842 static int compare_machine_info(const void *a, const void *b) {
1843 const struct machine_info *u = a, *v = b;
1844
1845 if (u->is_host != v->is_host)
1846 return u->is_host > v->is_host ? -1 : 1;
1847
1848 return strcasecmp(u->name, v->name);
1849 }
1850
1851 static int get_machine_properties(sd_bus *bus, struct machine_info *mi) {
1852 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL;
1853 int r;
1854
1855 assert(mi);
1856
1857 if (!bus) {
1858 r = sd_bus_open_system_machine(&container, mi->name);
1859 if (r < 0)
1860 return r;
1861
1862 bus = container;
1863 }
1864
1865 r = bus_map_all_properties(
1866 bus,
1867 "org.freedesktop.systemd1",
1868 "/org/freedesktop/systemd1",
1869 machine_info_property_map,
1870 BUS_MAP_STRDUP,
1871 NULL,
1872 NULL,
1873 mi);
1874 if (r < 0)
1875 return r;
1876
1877 return 0;
1878 }
1879
1880 static bool output_show_machine(const char *name, char **patterns) {
1881 return strv_fnmatch_or_empty(patterns, name, FNM_NOESCAPE);
1882 }
1883
1884 static int get_machine_list(
1885 sd_bus *bus,
1886 struct machine_info **_machine_infos,
1887 char **patterns) {
1888
1889 struct machine_info *machine_infos = NULL;
1890 _cleanup_strv_free_ char **m = NULL;
1891 _cleanup_free_ char *hn = NULL;
1892 size_t sz = 0;
1893 char **i;
1894 int c = 0, r;
1895
1896 hn = gethostname_malloc();
1897 if (!hn)
1898 return log_oom();
1899
1900 if (output_show_machine(hn, patterns)) {
1901 if (!GREEDY_REALLOC0(machine_infos, sz, c+1))
1902 return log_oom();
1903
1904 machine_infos[c].is_host = true;
1905 machine_infos[c].name = TAKE_PTR(hn);
1906
1907 (void) get_machine_properties(bus, &machine_infos[c]);
1908 c++;
1909 }
1910
1911 r = sd_get_machine_names(&m);
1912 if (r < 0)
1913 return log_error_errno(r, "Failed to get machine list: %m");
1914
1915 STRV_FOREACH(i, m) {
1916 _cleanup_free_ char *class = NULL;
1917
1918 if (!output_show_machine(*i, patterns))
1919 continue;
1920
1921 sd_machine_get_class(*i, &class);
1922 if (!streq_ptr(class, "container"))
1923 continue;
1924
1925 if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) {
1926 free_machines_list(machine_infos, c);
1927 return log_oom();
1928 }
1929
1930 machine_infos[c].is_host = false;
1931 machine_infos[c].name = strdup(*i);
1932 if (!machine_infos[c].name) {
1933 free_machines_list(machine_infos, c);
1934 return log_oom();
1935 }
1936
1937 (void) get_machine_properties(NULL, &machine_infos[c]);
1938 c++;
1939 }
1940
1941 *_machine_infos = machine_infos;
1942 return c;
1943 }
1944
1945 static void output_machines_list(struct machine_info *machine_infos, unsigned n) {
1946 struct machine_info *m;
1947 unsigned
1948 circle_len = 0,
1949 namelen = STRLEN("NAME"),
1950 statelen = STRLEN("STATE"),
1951 failedlen = STRLEN("FAILED"),
1952 jobslen = STRLEN("JOBS");
1953
1954 assert(machine_infos || n == 0);
1955
1956 for (m = machine_infos; m < machine_infos + n; m++) {
1957 namelen = MAX(namelen,
1958 strlen(m->name) + (m->is_host ? STRLEN(" (host)") : 0));
1959 statelen = MAX(statelen, strlen_ptr(m->state));
1960 failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units));
1961 jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs));
1962
1963 if (!arg_plain && !streq_ptr(m->state, "running"))
1964 circle_len = 2;
1965 }
1966
1967 if (!arg_no_legend) {
1968 if (circle_len > 0)
1969 fputs(" ", stdout);
1970
1971 printf("%-*s %-*s %-*s %-*s\n",
1972 namelen, "NAME",
1973 statelen, "STATE",
1974 failedlen, "FAILED",
1975 jobslen, "JOBS");
1976 }
1977
1978 for (m = machine_infos; m < machine_infos + n; m++) {
1979 const char *on_state = "", *off_state = "";
1980 const char *on_failed = "", *off_failed = "";
1981 bool circle = false;
1982
1983 if (streq_ptr(m->state, "degraded")) {
1984 on_state = ansi_highlight_red();
1985 off_state = ansi_normal();
1986 circle = true;
1987 } else if (!streq_ptr(m->state, "running")) {
1988 on_state = ansi_highlight_yellow();
1989 off_state = ansi_normal();
1990 circle = true;
1991 }
1992
1993 if (m->n_failed_units > 0) {
1994 on_failed = ansi_highlight_red();
1995 off_failed = ansi_normal();
1996 } else
1997 on_failed = off_failed = "";
1998
1999 if (circle_len > 0)
2000 printf("%s%s%s ", on_state, circle ? special_glyph(BLACK_CIRCLE) : " ", off_state);
2001
2002 if (m->is_host)
2003 printf("%-*s (host) %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n",
2004 (int) (namelen - (STRLEN(" (host)"))),
2005 strna(m->name),
2006 on_state, statelen, strna(m->state), off_state,
2007 on_failed, failedlen, m->n_failed_units, off_failed,
2008 jobslen, m->n_jobs);
2009 else
2010 printf("%-*s %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n",
2011 namelen, strna(m->name),
2012 on_state, statelen, strna(m->state), off_state,
2013 on_failed, failedlen, m->n_failed_units, off_failed,
2014 jobslen, m->n_jobs);
2015 }
2016
2017 if (!arg_no_legend)
2018 printf("\n%u machines listed.\n", n);
2019 }
2020
2021 static int list_machines(int argc, char *argv[], void *userdata) {
2022 struct machine_info *machine_infos = NULL;
2023 sd_bus *bus;
2024 int r;
2025
2026 r = acquire_bus(BUS_MANAGER, &bus);
2027 if (r < 0)
2028 return r;
2029
2030 r = get_machine_list(bus, &machine_infos, strv_skip(argv, 1));
2031 if (r < 0)
2032 return r;
2033
2034 (void) pager_open(arg_no_pager, false);
2035
2036 qsort_safe(machine_infos, r, sizeof(struct machine_info), compare_machine_info);
2037 output_machines_list(machine_infos, r);
2038 free_machines_list(machine_infos, r);
2039
2040 return 0;
2041 }
2042
2043 static int get_default(int argc, char *argv[], void *userdata) {
2044 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2045 _cleanup_free_ char *_path = NULL;
2046 const char *path;
2047 int r;
2048
2049 if (install_client_side()) {
2050 r = unit_file_get_default(arg_scope, arg_root, &_path);
2051 if (r < 0)
2052 return log_error_errno(r, "Failed to get default target: %m");
2053 path = _path;
2054
2055 r = 0;
2056 } else {
2057 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2058 sd_bus *bus;
2059
2060 r = acquire_bus(BUS_MANAGER, &bus);
2061 if (r < 0)
2062 return r;
2063
2064 r = sd_bus_call_method(
2065 bus,
2066 "org.freedesktop.systemd1",
2067 "/org/freedesktop/systemd1",
2068 "org.freedesktop.systemd1.Manager",
2069 "GetDefaultTarget",
2070 &error,
2071 &reply,
2072 NULL);
2073 if (r < 0)
2074 return log_error_errno(r, "Failed to get default target: %s", bus_error_message(&error, r));
2075
2076 r = sd_bus_message_read(reply, "s", &path);
2077 if (r < 0)
2078 return bus_log_parse_error(r);
2079 }
2080
2081 if (path)
2082 printf("%s\n", path);
2083
2084 return 0;
2085 }
2086
2087 static int set_default(int argc, char *argv[], void *userdata) {
2088 _cleanup_free_ char *unit = NULL;
2089 UnitFileChange *changes = NULL;
2090 size_t n_changes = 0;
2091 int r;
2092
2093 assert(argc >= 2);
2094 assert(argv);
2095
2096 r = unit_name_mangle_with_suffix(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".target", &unit);
2097 if (r < 0)
2098 return log_error_errno(r, "Failed to mangle unit name: %m");
2099
2100 if (install_client_side()) {
2101 r = unit_file_set_default(arg_scope, UNIT_FILE_FORCE, arg_root, unit, &changes, &n_changes);
2102 unit_file_dump_changes(r, "set default", changes, n_changes, arg_quiet);
2103
2104 if (r > 0)
2105 r = 0;
2106 } else {
2107 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2108 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2109 sd_bus *bus;
2110
2111 polkit_agent_open_maybe();
2112
2113 r = acquire_bus(BUS_MANAGER, &bus);
2114 if (r < 0)
2115 return r;
2116
2117 r = sd_bus_call_method(
2118 bus,
2119 "org.freedesktop.systemd1",
2120 "/org/freedesktop/systemd1",
2121 "org.freedesktop.systemd1.Manager",
2122 "SetDefaultTarget",
2123 &error,
2124 &reply,
2125 "sb", unit, 1);
2126 if (r < 0)
2127 return log_error_errno(r, "Failed to set default target: %s", bus_error_message(&error, r));
2128
2129 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
2130 if (r < 0)
2131 goto finish;
2132
2133 /* Try to reload if enabled */
2134 if (!arg_no_reload)
2135 r = daemon_reload(argc, argv, userdata);
2136 else
2137 r = 0;
2138 }
2139
2140 finish:
2141 unit_file_changes_free(changes, n_changes);
2142
2143 return r;
2144 }
2145
2146 static int output_waiting_jobs(sd_bus *bus, uint32_t id, const char *method, const char *prefix) {
2147 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2148 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2149 const char *name, *type;
2150 uint32_t other_id;
2151 int r;
2152
2153 assert(bus);
2154
2155 r = sd_bus_call_method(
2156 bus,
2157 "org.freedesktop.systemd1",
2158 "/org/freedesktop/systemd1",
2159 "org.freedesktop.systemd1.Manager",
2160 method,
2161 &error,
2162 &reply,
2163 "u", id);
2164 if (r < 0)
2165 return log_debug_errno(r, "Failed to get waiting jobs for job %" PRIu32, id);
2166
2167 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
2168 if (r < 0)
2169 return bus_log_parse_error(r);
2170
2171 while ((r = sd_bus_message_read(reply, "(usssoo)", &other_id, &name, &type, NULL, NULL, NULL)) > 0)
2172 printf("%s %u (%s/%s)\n", prefix, other_id, name, type);
2173 if (r < 0)
2174 return bus_log_parse_error(r);
2175
2176 r = sd_bus_message_exit_container(reply);
2177 if (r < 0)
2178 return bus_log_parse_error(r);
2179
2180 return 0;
2181 }
2182
2183 struct job_info {
2184 uint32_t id;
2185 const char *name, *type, *state;
2186 };
2187
2188 static void output_jobs_list(sd_bus *bus, const struct job_info* jobs, unsigned n, bool skipped) {
2189 unsigned id_len, unit_len, type_len, state_len;
2190 const struct job_info *j;
2191 const char *on, *off;
2192 bool shorten = false;
2193
2194 assert(n == 0 || jobs);
2195
2196 if (n == 0) {
2197 if (!arg_no_legend) {
2198 on = ansi_highlight_green();
2199 off = ansi_normal();
2200
2201 printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off);
2202 }
2203 return;
2204 }
2205
2206 (void) pager_open(arg_no_pager, false);
2207
2208 id_len = STRLEN("JOB");
2209 unit_len = STRLEN("UNIT");
2210 type_len = STRLEN("TYPE");
2211 state_len = STRLEN("STATE");
2212
2213 for (j = jobs; j < jobs + n; j++) {
2214 uint32_t id = j->id;
2215 assert(j->name && j->type && j->state);
2216
2217 id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
2218 unit_len = MAX(unit_len, strlen(j->name));
2219 type_len = MAX(type_len, strlen(j->type));
2220 state_len = MAX(state_len, strlen(j->state));
2221 }
2222
2223 if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
2224 unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
2225 shorten = true;
2226 }
2227
2228 if (!arg_no_legend)
2229 printf("%*s %-*s %-*s %-*s\n",
2230 id_len, "JOB",
2231 unit_len, "UNIT",
2232 type_len, "TYPE",
2233 state_len, "STATE");
2234
2235 for (j = jobs; j < jobs + n; j++) {
2236 _cleanup_free_ char *e = NULL;
2237
2238 if (streq(j->state, "running")) {
2239 on = ansi_highlight();
2240 off = ansi_normal();
2241 } else
2242 on = off = "";
2243
2244 e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
2245 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
2246 id_len, j->id,
2247 on, unit_len, e ? e : j->name, off,
2248 type_len, j->type,
2249 on, state_len, j->state, off);
2250
2251 if (arg_jobs_after)
2252 output_waiting_jobs(bus, j->id, "GetJobAfter", "\twaiting for job");
2253 if (arg_jobs_before)
2254 output_waiting_jobs(bus, j->id, "GetJobBefore", "\tblocking job");
2255 }
2256
2257 if (!arg_no_legend) {
2258 on = ansi_highlight();
2259 off = ansi_normal();
2260
2261 printf("\n%s%u jobs listed%s.\n", on, n, off);
2262 }
2263 }
2264
2265 static bool output_show_job(struct job_info *job, char **patterns) {
2266 return strv_fnmatch_or_empty(patterns, job->name, FNM_NOESCAPE);
2267 }
2268
2269 static int list_jobs(int argc, char *argv[], void *userdata) {
2270 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2271 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2272 _cleanup_free_ struct job_info *jobs = NULL;
2273 const char *name, *type, *state;
2274 bool skipped = false;
2275 size_t size = 0;
2276 unsigned c = 0;
2277 sd_bus *bus;
2278 uint32_t id;
2279 int r;
2280
2281 r = acquire_bus(BUS_MANAGER, &bus);
2282 if (r < 0)
2283 return r;
2284
2285 r = sd_bus_call_method(
2286 bus,
2287 "org.freedesktop.systemd1",
2288 "/org/freedesktop/systemd1",
2289 "org.freedesktop.systemd1.Manager",
2290 "ListJobs",
2291 &error,
2292 &reply,
2293 NULL);
2294 if (r < 0)
2295 return log_error_errno(r, "Failed to list jobs: %s", bus_error_message(&error, r));
2296
2297 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
2298 if (r < 0)
2299 return bus_log_parse_error(r);
2300
2301 while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, NULL, NULL)) > 0) {
2302 struct job_info job = { id, name, type, state };
2303
2304 if (!output_show_job(&job, strv_skip(argv, 1))) {
2305 skipped = true;
2306 continue;
2307 }
2308
2309 if (!GREEDY_REALLOC(jobs, size, c + 1))
2310 return log_oom();
2311
2312 jobs[c++] = job;
2313 }
2314 if (r < 0)
2315 return bus_log_parse_error(r);
2316
2317 r = sd_bus_message_exit_container(reply);
2318 if (r < 0)
2319 return bus_log_parse_error(r);
2320
2321 (void) pager_open(arg_no_pager, false);
2322
2323 output_jobs_list(bus, jobs, c, skipped);
2324 return 0;
2325 }
2326
2327 static int cancel_job(int argc, char *argv[], void *userdata) {
2328 sd_bus *bus;
2329 char **name;
2330 int r = 0;
2331
2332 if (argc <= 1)
2333 return trivial_method(argc, argv, userdata);
2334
2335 r = acquire_bus(BUS_MANAGER, &bus);
2336 if (r < 0)
2337 return r;
2338
2339 polkit_agent_open_maybe();
2340
2341 STRV_FOREACH(name, strv_skip(argv, 1)) {
2342 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2343 uint32_t id;
2344 int q;
2345
2346 q = safe_atou32(*name, &id);
2347 if (q < 0)
2348 return log_error_errno(q, "Failed to parse job id \"%s\": %m", *name);
2349
2350 q = sd_bus_call_method(
2351 bus,
2352 "org.freedesktop.systemd1",
2353 "/org/freedesktop/systemd1",
2354 "org.freedesktop.systemd1.Manager",
2355 "CancelJob",
2356 &error,
2357 NULL,
2358 "u", id);
2359 if (q < 0) {
2360 log_error_errno(q, "Failed to cancel job %"PRIu32": %s", id, bus_error_message(&error, q));
2361 if (r == 0)
2362 r = q;
2363 }
2364 }
2365
2366 return r;
2367 }
2368
2369 static int need_daemon_reload(sd_bus *bus, const char *unit) {
2370 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2371 const char *path;
2372 int b, r;
2373
2374 /* We ignore all errors here, since this is used to show a
2375 * warning only */
2376
2377 /* We don't use unit_dbus_path_from_name() directly since we
2378 * don't want to load the unit if it isn't loaded. */
2379
2380 r = sd_bus_call_method(
2381 bus,
2382 "org.freedesktop.systemd1",
2383 "/org/freedesktop/systemd1",
2384 "org.freedesktop.systemd1.Manager",
2385 "GetUnit",
2386 NULL,
2387 &reply,
2388 "s", unit);
2389 if (r < 0)
2390 return r;
2391
2392 r = sd_bus_message_read(reply, "o", &path);
2393 if (r < 0)
2394 return r;
2395
2396 r = sd_bus_get_property_trivial(
2397 bus,
2398 "org.freedesktop.systemd1",
2399 path,
2400 "org.freedesktop.systemd1.Unit",
2401 "NeedDaemonReload",
2402 NULL,
2403 'b', &b);
2404 if (r < 0)
2405 return r;
2406
2407 return b;
2408 }
2409
2410 static void warn_unit_file_changed(const char *name) {
2411 assert(name);
2412
2413 log_warning("%sWarning:%s The unit file, source configuration file or drop-ins of %s changed on disk. Run 'systemctl%s daemon-reload' to reload units.",
2414 ansi_highlight_red(),
2415 ansi_normal(),
2416 name,
2417 arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
2418 }
2419
2420 static int unit_file_find_path(LookupPaths *lp, const char *unit_name, char **unit_path) {
2421 char **p;
2422
2423 assert(lp);
2424 assert(unit_name);
2425
2426 STRV_FOREACH(p, lp->search_path) {
2427 _cleanup_free_ char *path = NULL, *lpath = NULL;
2428 int r;
2429
2430 path = path_join(NULL, *p, unit_name);
2431 if (!path)
2432 return log_oom();
2433
2434 r = chase_symlinks(path, arg_root, 0, &lpath);
2435 if (r == -ENOENT)
2436 continue;
2437 if (r == -ENOMEM)
2438 return log_oom();
2439 if (r < 0)
2440 return log_error_errno(r, "Failed to access path \"%s\": %m", path);
2441
2442 if (unit_path)
2443 *unit_path = TAKE_PTR(lpath);
2444
2445 return 1;
2446 }
2447
2448 return 0;
2449 }
2450
2451 static int unit_find_template_path(
2452 const char *unit_name,
2453 LookupPaths *lp,
2454 char **fragment_path,
2455 char **template) {
2456
2457 _cleanup_free_ char *_template = NULL;
2458 int r;
2459
2460 /* Returns 1 if a fragment was found, 0 if not found, negative on error. */
2461
2462 r = unit_file_find_path(lp, unit_name, fragment_path);
2463 if (r != 0)
2464 return r; /* error or found a real unit */
2465
2466 r = unit_name_template(unit_name, &_template);
2467 if (r == -EINVAL)
2468 return 0; /* not a template, does not exist */
2469 if (r < 0)
2470 return log_error_errno(r, "Failed to determine template name: %m");
2471
2472 r = unit_file_find_path(lp, _template, fragment_path);
2473 if (r < 0)
2474 return r;
2475
2476 if (template)
2477 *template = TAKE_PTR(_template);
2478
2479 return r;
2480 }
2481
2482 static int unit_find_paths(
2483 sd_bus *bus,
2484 const char *unit_name,
2485 LookupPaths *lp,
2486 char **fragment_path,
2487 char ***dropin_paths) {
2488
2489 _cleanup_free_ char *path = NULL;
2490 _cleanup_strv_free_ char **dropins = NULL;
2491 int r;
2492
2493 /**
2494 * Finds where the unit is defined on disk. Returns 0 if the unit
2495 * is not found. Returns 1 if it is found, and sets
2496 * - the path to the unit in *path, if it exists on disk,
2497 * - and a strv of existing drop-ins in *dropins,
2498 * if the arg is not NULL and any dropins were found.
2499 */
2500
2501 assert(unit_name);
2502 assert(fragment_path);
2503 assert(lp);
2504
2505 if (!install_client_side() && !unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
2506 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2507 _cleanup_free_ char *unit = NULL;
2508
2509 unit = unit_dbus_path_from_name(unit_name);
2510 if (!unit)
2511 return log_oom();
2512
2513 r = sd_bus_get_property_string(
2514 bus,
2515 "org.freedesktop.systemd1",
2516 unit,
2517 "org.freedesktop.systemd1.Unit",
2518 "FragmentPath",
2519 &error,
2520 &path);
2521 if (r < 0)
2522 return log_error_errno(r, "Failed to get FragmentPath: %s", bus_error_message(&error, r));
2523
2524 if (dropin_paths) {
2525 r = sd_bus_get_property_strv(
2526 bus,
2527 "org.freedesktop.systemd1",
2528 unit,
2529 "org.freedesktop.systemd1.Unit",
2530 "DropInPaths",
2531 &error,
2532 &dropins);
2533 if (r < 0)
2534 return log_error_errno(r, "Failed to get DropInPaths: %s", bus_error_message(&error, r));
2535 }
2536 } else {
2537 _cleanup_set_free_ Set *names = NULL;
2538 _cleanup_free_ char *template = NULL;
2539
2540 names = set_new(NULL);
2541 if (!names)
2542 return log_oom();
2543
2544 r = unit_find_template_path(unit_name, lp, &path, &template);
2545 if (r < 0)
2546 return r;
2547
2548 if (r > 0) {
2549 if (null_or_empty_path(path))
2550 /* The template is masked. Let's cut the process short. */
2551 return -ERFKILL;
2552
2553 /* We found the unit file. If we followed symlinks, this name might be
2554 * different then the unit_name with started with. Look for dropins matching
2555 * that "final" name. */
2556 r = set_put(names, basename(path));
2557 } else if (!template)
2558 /* No unit file, let's look for dropins matching the original name.
2559 * systemd has fairly complicated rules (based on unit type and provenience),
2560 * which units are allowed not to have the main unit file. We err on the
2561 * side of including too many files, and always try to load dropins. */
2562 r = set_put(names, unit_name);
2563 else
2564 /* The cases where we allow a unit to exist without the main file are
2565 * never valid for templates. Don't try to load dropins in this case. */
2566 goto not_found;
2567
2568 if (r < 0)
2569 return log_error_errno(r, "Failed to add unit name: %m");
2570
2571 if (dropin_paths) {
2572 r = unit_file_find_dropin_conf_paths(arg_root, lp->search_path,
2573 NULL, names, &dropins);
2574 if (r < 0)
2575 return r;
2576 }
2577 }
2578
2579 r = 0;
2580
2581 if (!isempty(path)) {
2582 *fragment_path = TAKE_PTR(path);
2583 r = 1;
2584 }
2585
2586 if (dropin_paths && !strv_isempty(dropins)) {
2587 *dropin_paths = TAKE_PTR(dropins);
2588 r = 1;
2589 }
2590 not_found:
2591 if (r == 0 && !arg_force)
2592 log_error("No files found for %s.", unit_name);
2593
2594 return r;
2595 }
2596
2597 static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state) {
2598 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2599 _cleanup_free_ char *buf = NULL, *path = NULL;
2600 UnitActiveState state;
2601 int r;
2602
2603 assert(name);
2604 assert(active_state);
2605
2606 path = unit_dbus_path_from_name(name);
2607 if (!path)
2608 return log_oom();
2609
2610 r = sd_bus_get_property_string(
2611 bus,
2612 "org.freedesktop.systemd1",
2613 path,
2614 "org.freedesktop.systemd1.Unit",
2615 "ActiveState",
2616 &error,
2617 &buf);
2618 if (r < 0)
2619 return log_error_errno(r, "Failed to retrieve unit state: %s", bus_error_message(&error, r));
2620
2621 state = unit_active_state_from_string(buf);
2622 if (state == _UNIT_ACTIVE_STATE_INVALID) {
2623 log_error("Invalid unit state '%s' for: %s", buf, name);
2624 return -EINVAL;
2625 }
2626
2627 *active_state = state;
2628 return 0;
2629 }
2630
2631 static int unit_is_masked(sd_bus *bus, LookupPaths *lp, const char *name) {
2632 _cleanup_free_ char *load_state = NULL;
2633 int r;
2634
2635 if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE)) {
2636 _cleanup_free_ char *path = NULL;
2637
2638 /* A template cannot be loaded, but it can be still masked, so
2639 * we need to use a different method. */
2640
2641 r = unit_file_find_path(lp, name, &path);
2642 if (r < 0)
2643 return r;
2644 if (r == 0)
2645 return false;
2646 return null_or_empty_path(path);
2647 }
2648
2649 r = unit_load_state(bus, name, &load_state);
2650 if (r < 0)
2651 return r;
2652
2653 return streq(load_state, "masked");
2654 }
2655
2656 static int check_triggering_units(sd_bus *bus, const char *name) {
2657 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2658 _cleanup_free_ char *n = NULL, *path = NULL, *load_state = NULL;
2659 _cleanup_strv_free_ char **triggered_by = NULL;
2660 bool print_warning_label = true;
2661 UnitActiveState active_state;
2662 char **i;
2663 int r;
2664
2665 r = unit_name_mangle(name, 0, &n);
2666 if (r < 0)
2667 return log_error_errno(r, "Failed to mangle unit name: %m");
2668
2669 r = unit_load_state(bus, name, &load_state);
2670 if (r < 0)
2671 return r;
2672
2673 if (streq(load_state, "masked"))
2674 return 0;
2675
2676 path = unit_dbus_path_from_name(n);
2677 if (!path)
2678 return log_oom();
2679
2680 r = sd_bus_get_property_strv(
2681 bus,
2682 "org.freedesktop.systemd1",
2683 path,
2684 "org.freedesktop.systemd1.Unit",
2685 "TriggeredBy",
2686 &error,
2687 &triggered_by);
2688 if (r < 0)
2689 return log_error_errno(r, "Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
2690
2691 STRV_FOREACH(i, triggered_by) {
2692 r = get_state_one_unit(bus, *i, &active_state);
2693 if (r < 0)
2694 return r;
2695
2696 if (!IN_SET(active_state, UNIT_ACTIVE, UNIT_RELOADING))
2697 continue;
2698
2699 if (print_warning_label) {
2700 log_warning("Warning: Stopping %s, but it can still be activated by:", n);
2701 print_warning_label = false;
2702 }
2703
2704 log_warning(" %s", *i);
2705 }
2706
2707 return 0;
2708 }
2709
2710 static const struct {
2711 const char *verb;
2712 const char *method;
2713 } unit_actions[] = {
2714 { "start", "StartUnit" },
2715 { "stop", "StopUnit" },
2716 { "condstop", "StopUnit" },
2717 { "reload", "ReloadUnit" },
2718 { "restart", "RestartUnit" },
2719 { "try-restart", "TryRestartUnit" },
2720 { "condrestart", "TryRestartUnit" },
2721 { "reload-or-restart", "ReloadOrRestartUnit" },
2722 { "try-reload-or-restart", "ReloadOrTryRestartUnit" },
2723 { "reload-or-try-restart", "ReloadOrTryRestartUnit" },
2724 { "condreload", "ReloadOrTryRestartUnit" },
2725 { "force-reload", "ReloadOrTryRestartUnit" }
2726 };
2727
2728 static const char *verb_to_method(const char *verb) {
2729 uint i;
2730
2731 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2732 if (streq_ptr(unit_actions[i].verb, verb))
2733 return unit_actions[i].method;
2734
2735 return "StartUnit";
2736 }
2737
2738 static const char *method_to_verb(const char *method) {
2739 uint i;
2740
2741 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2742 if (streq_ptr(unit_actions[i].method, method))
2743 return unit_actions[i].verb;
2744
2745 return "n/a";
2746 }
2747
2748 typedef struct {
2749 sd_bus_slot *match;
2750 sd_event *event;
2751 Set *unit_paths;
2752 bool any_failed;
2753 } WaitContext;
2754
2755 static void wait_context_free(WaitContext *c) {
2756 c->match = sd_bus_slot_unref(c->match);
2757 c->event = sd_event_unref(c->event);
2758 c->unit_paths = set_free_free(c->unit_paths);
2759 }
2760
2761 static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
2762 WaitContext *c = userdata;
2763 const char *path;
2764 int r;
2765
2766 path = sd_bus_message_get_path(m);
2767 if (!set_contains(c->unit_paths, path))
2768 return 0;
2769
2770 /* Check if ActiveState changed to inactive/failed */
2771 /* (s interface, a{sv} changed_properties, as invalidated_properties) */
2772 r = sd_bus_message_skip(m, "s");
2773 if (r < 0)
2774 return bus_log_parse_error(r);
2775
2776 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}");
2777 if (r < 0)
2778 return bus_log_parse_error(r);
2779
2780 while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
2781 const char *s;
2782
2783 r = sd_bus_message_read(m, "s", &s);
2784 if (r < 0)
2785 return bus_log_parse_error(r);
2786
2787 if (streq(s, "ActiveState")) {
2788 bool is_failed;
2789
2790 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, "s");
2791 if (r < 0)
2792 return bus_log_parse_error(r);
2793
2794 r = sd_bus_message_read(m, "s", &s);
2795 if (r < 0)
2796 return bus_log_parse_error(r);
2797
2798 is_failed = streq(s, "failed");
2799 if (streq(s, "inactive") || is_failed) {
2800 log_debug("%s became %s, dropping from --wait tracking", path, s);
2801 free(set_remove(c->unit_paths, path));
2802 c->any_failed = c->any_failed || is_failed;
2803 } else
2804 log_debug("ActiveState on %s changed to %s", path, s);
2805
2806 break; /* no need to dissect the rest of the message */
2807 } else {
2808 /* other property */
2809 r = sd_bus_message_skip(m, "v");
2810 if (r < 0)
2811 return bus_log_parse_error(r);
2812 }
2813 r = sd_bus_message_exit_container(m);
2814 if (r < 0)
2815 return bus_log_parse_error(r);
2816 }
2817 if (r < 0)
2818 return bus_log_parse_error(r);
2819
2820 if (set_isempty(c->unit_paths))
2821 sd_event_exit(c->event, EXIT_SUCCESS);
2822
2823 return 0;
2824 }
2825
2826 static int start_unit_one(
2827 sd_bus *bus,
2828 const char *method,
2829 const char *name,
2830 const char *mode,
2831 sd_bus_error *error,
2832 BusWaitForJobs *w,
2833 WaitContext *wait_context) {
2834
2835 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2836 const char *path;
2837 int r;
2838
2839 assert(method);
2840 assert(name);
2841 assert(mode);
2842 assert(error);
2843
2844 if (wait_context) {
2845 _cleanup_free_ char *unit_path = NULL;
2846
2847 log_debug("Watching for property changes of %s", name);
2848 r = sd_bus_call_method(
2849 bus,
2850 "org.freedesktop.systemd1",
2851 "/org/freedesktop/systemd1",
2852 "org.freedesktop.systemd1.Manager",
2853 "RefUnit",
2854 error,
2855 NULL,
2856 "s", name);
2857 if (r < 0)
2858 return log_error_errno(r, "Failed to RefUnit %s: %s", name, bus_error_message(error, r));
2859
2860 unit_path = unit_dbus_path_from_name(name);
2861 if (!unit_path)
2862 return log_oom();
2863
2864 r = set_put_strdup(wait_context->unit_paths, unit_path);
2865 if (r < 0)
2866 return log_error_errno(r, "Failed to add unit path %s to set: %m", unit_path);
2867
2868 r = sd_bus_match_signal_async(bus,
2869 &wait_context->match,
2870 NULL,
2871 unit_path,
2872 "org.freedesktop.DBus.Properties",
2873 "PropertiesChanged",
2874 on_properties_changed, NULL, wait_context);
2875 if (r < 0)
2876 return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m");
2877 }
2878
2879 log_debug("%s dbus call org.freedesktop.systemd1.Manager %s(%s, %s)",
2880 arg_dry_run ? "Would execute" : "Executing",
2881 method, name, mode);
2882 if (arg_dry_run)
2883 return 0;
2884
2885 r = sd_bus_call_method(
2886 bus,
2887 "org.freedesktop.systemd1",
2888 "/org/freedesktop/systemd1",
2889 "org.freedesktop.systemd1.Manager",
2890 method,
2891 error,
2892 &reply,
2893 "ss", name, mode);
2894 if (r < 0) {
2895 const char *verb;
2896
2897 /* There's always a fallback possible for legacy actions. */
2898 if (arg_action != ACTION_SYSTEMCTL)
2899 return r;
2900
2901 verb = method_to_verb(method);
2902
2903 log_error("Failed to %s %s: %s", verb, name, bus_error_message(error, r));
2904
2905 if (!sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) &&
2906 !sd_bus_error_has_name(error, BUS_ERROR_UNIT_MASKED) &&
2907 !sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE))
2908 log_error("See %s logs and 'systemctl%s status%s %s' for details.",
2909 arg_scope == UNIT_FILE_SYSTEM ? "system" : "user",
2910 arg_scope == UNIT_FILE_SYSTEM ? "" : " --user",
2911 name[0] == '-' ? " --" : "",
2912 name);
2913
2914 return r;
2915 }
2916
2917 r = sd_bus_message_read(reply, "o", &path);
2918 if (r < 0)
2919 return bus_log_parse_error(r);
2920
2921 if (need_daemon_reload(bus, name) > 0)
2922 warn_unit_file_changed(name);
2923
2924 if (w) {
2925 log_debug("Adding %s to the set", path);
2926 r = bus_wait_for_jobs_add(w, path);
2927 if (r < 0)
2928 return log_oom();
2929 }
2930
2931 return 0;
2932 }
2933
2934 static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) {
2935 _cleanup_strv_free_ char **mangled = NULL, **globs = NULL;
2936 char **name;
2937 int r, i;
2938
2939 assert(bus);
2940 assert(ret);
2941
2942 STRV_FOREACH(name, names) {
2943 char *t;
2944 UnitNameMangle options = UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN);
2945
2946 if (suffix)
2947 r = unit_name_mangle_with_suffix(*name, options, suffix, &t);
2948 else
2949 r = unit_name_mangle(*name, options, &t);
2950 if (r < 0)
2951 return log_error_errno(r, "Failed to mangle name: %m");
2952
2953 if (string_is_glob(t))
2954 r = strv_consume(&globs, t);
2955 else
2956 r = strv_consume(&mangled, t);
2957 if (r < 0)
2958 return log_oom();
2959 }
2960
2961 /* Query the manager only if any of the names are a glob, since
2962 * this is fairly expensive */
2963 if (!strv_isempty(globs)) {
2964 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2965 _cleanup_free_ UnitInfo *unit_infos = NULL;
2966 size_t allocated, n;
2967
2968 r = get_unit_list(bus, NULL, globs, &unit_infos, 0, &reply);
2969 if (r < 0)
2970 return r;
2971
2972 n = strv_length(mangled);
2973 allocated = n + 1;
2974
2975 for (i = 0; i < r; i++) {
2976 if (!GREEDY_REALLOC(mangled, allocated, n+2))
2977 return log_oom();
2978
2979 mangled[n] = strdup(unit_infos[i].id);
2980 if (!mangled[n])
2981 return log_oom();
2982
2983 mangled[++n] = NULL;
2984 }
2985 }
2986
2987 *ret = TAKE_PTR(mangled);
2988
2989 return 0;
2990 }
2991
2992 static const struct {
2993 const char *target;
2994 const char *verb;
2995 const char *mode;
2996 } action_table[_ACTION_MAX] = {
2997 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
2998 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
2999 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
3000 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
3001 [ACTION_RUNLEVEL2] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
3002 [ACTION_RUNLEVEL3] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
3003 [ACTION_RUNLEVEL4] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
3004 [ACTION_RUNLEVEL5] = { SPECIAL_GRAPHICAL_TARGET, NULL, "isolate" },
3005 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
3006 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
3007 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
3008 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
3009 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
3010 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
3011 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
3012 [ACTION_SUSPEND_THEN_HIBERNATE] = { SPECIAL_SUSPEND_THEN_HIBERNATE_TARGET, "suspend-then-hibernate", "replace-irreversibly" },
3013 };
3014
3015 static enum action verb_to_action(const char *verb) {
3016 enum action i;
3017
3018 for (i = 0; i < _ACTION_MAX; i++)
3019 if (streq_ptr(action_table[i].verb, verb))
3020 return i;
3021
3022 return _ACTION_INVALID;
3023 }
3024
3025 static int start_unit(int argc, char *argv[], void *userdata) {
3026 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
3027 const char *method, *mode, *one_name, *suffix = NULL;
3028 _cleanup_strv_free_ char **names = NULL;
3029 sd_bus *bus;
3030 _cleanup_(wait_context_free) WaitContext wait_context = {};
3031 char **name;
3032 int r = 0;
3033
3034 if (arg_wait && !STR_IN_SET(argv[0], "start", "restart")) {
3035 log_error("--wait may only be used with the 'start' or 'restart' commands.");
3036 return -EINVAL;
3037 }
3038
3039 /* we cannot do sender tracking on the private bus, so we need the full
3040 * one for RefUnit to implement --wait */
3041 r = acquire_bus(arg_wait ? BUS_FULL : BUS_MANAGER, &bus);
3042 if (r < 0)
3043 return r;
3044
3045 ask_password_agent_open_if_enabled();
3046 polkit_agent_open_maybe();
3047
3048 if (arg_action == ACTION_SYSTEMCTL) {
3049 enum action action;
3050
3051 action = verb_to_action(argv[0]);
3052
3053 if (action != _ACTION_INVALID) {
3054 method = "StartUnit";
3055 mode = action_table[action].mode;
3056 one_name = action_table[action].target;
3057 } else {
3058 if (streq(argv[0], "isolate")) {
3059 method = "StartUnit";
3060 mode = "isolate";
3061
3062 suffix = ".target";
3063 } else {
3064 method = verb_to_method(argv[0]);
3065 mode = arg_job_mode;
3066 }
3067 one_name = NULL;
3068 }
3069 } else {
3070 assert(arg_action >= 0 && arg_action < _ACTION_MAX);
3071 assert(action_table[arg_action].target);
3072 assert(action_table[arg_action].mode);
3073
3074 method = "StartUnit";
3075 mode = action_table[arg_action].mode;
3076 one_name = action_table[arg_action].target;
3077 }
3078
3079 if (one_name)
3080 names = strv_new(one_name, NULL);
3081 else {
3082 r = expand_names(bus, strv_skip(argv, 1), suffix, &names);
3083 if (r < 0)
3084 return log_error_errno(r, "Failed to expand names: %m");
3085 }
3086
3087 if (!arg_no_block) {
3088 r = bus_wait_for_jobs_new(bus, &w);
3089 if (r < 0)
3090 return log_error_errno(r, "Could not watch jobs: %m");
3091 }
3092
3093 if (arg_wait) {
3094 wait_context.unit_paths = set_new(&string_hash_ops);
3095 if (!wait_context.unit_paths)
3096 return log_oom();
3097
3098 r = sd_bus_call_method_async(
3099 bus,
3100 NULL,
3101 "org.freedesktop.systemd1",
3102 "/org/freedesktop/systemd1",
3103 "org.freedesktop.systemd1.Manager",
3104 "Subscribe",
3105 NULL, NULL,
3106 NULL);
3107 if (r < 0)
3108 return log_error_errno(r, "Failed to enable subscription: %m");
3109 r = sd_event_default(&wait_context.event);
3110 if (r < 0)
3111 return log_error_errno(r, "Failed to allocate event loop: %m");
3112 r = sd_bus_attach_event(bus, wait_context.event, 0);
3113 if (r < 0)
3114 return log_error_errno(r, "Failed to attach bus to event loop: %m");
3115 }
3116
3117 STRV_FOREACH(name, names) {
3118 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3119 int q;
3120
3121 q = start_unit_one(bus, method, *name, mode, &error, w, arg_wait ? &wait_context : NULL);
3122 if (r >= 0 && q < 0)
3123 r = translate_bus_error_to_exit_status(q, &error);
3124 }
3125
3126 if (!arg_no_block) {
3127 int q, arg_count = 0;
3128 const char* extra_args[4] = {};
3129
3130 if (arg_scope != UNIT_FILE_SYSTEM)
3131 extra_args[arg_count++] = "--user";
3132
3133 assert(IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_REMOTE, BUS_TRANSPORT_MACHINE));
3134 if (arg_transport == BUS_TRANSPORT_REMOTE) {
3135 extra_args[arg_count++] = "-H";
3136 extra_args[arg_count++] = arg_host;
3137 } else if (arg_transport == BUS_TRANSPORT_MACHINE) {
3138 extra_args[arg_count++] = "-M";
3139 extra_args[arg_count++] = arg_host;
3140 }
3141
3142 q = bus_wait_for_jobs(w, arg_quiet, extra_args);
3143 if (q < 0)
3144 return q;
3145
3146 /* When stopping units, warn if they can still be triggered by
3147 * another active unit (socket, path, timer) */
3148 if (!arg_quiet && streq(method, "StopUnit"))
3149 STRV_FOREACH(name, names)
3150 (void) check_triggering_units(bus, *name);
3151 }
3152
3153 if (r >= 0 && arg_wait && !set_isempty(wait_context.unit_paths)) {
3154 int q;
3155 q = sd_event_loop(wait_context.event);
3156 if (q < 0)
3157 return log_error_errno(q, "Failed to run event loop: %m");
3158 if (wait_context.any_failed)
3159 r = EXIT_FAILURE;
3160 }
3161
3162 return r;
3163 }
3164
3165 #if ENABLE_LOGIND
3166 static int logind_set_wall_message(void) {
3167 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3168 sd_bus *bus;
3169 _cleanup_free_ char *m = NULL;
3170 int r;
3171
3172 r = acquire_bus(BUS_FULL, &bus);
3173 if (r < 0)
3174 return r;
3175
3176 m = strv_join(arg_wall, " ");
3177 if (!m)
3178 return log_oom();
3179
3180 log_debug("%s wall message \"%s\".", arg_dry_run ? "Would set" : "Setting", m);
3181 if (arg_dry_run)
3182 return 0;
3183
3184 r = sd_bus_call_method(
3185 bus,
3186 "org.freedesktop.login1",
3187 "/org/freedesktop/login1",
3188 "org.freedesktop.login1.Manager",
3189 "SetWallMessage",
3190 &error,
3191 NULL,
3192 "sb",
3193 m,
3194 !arg_no_wall);
3195
3196 if (r < 0)
3197 return log_warning_errno(r, "Failed to set wall message, ignoring: %s", bus_error_message(&error, r));
3198 return 0;
3199 }
3200 #endif
3201
3202 /* Ask systemd-logind, which might grant access to unprivileged users
3203 * through polkit */
3204 static int logind_reboot(enum action a) {
3205 #if ENABLE_LOGIND
3206 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3207 const char *method, *description;
3208 sd_bus *bus;
3209 int r;
3210
3211 r = acquire_bus(BUS_FULL, &bus);
3212 if (r < 0)
3213 return r;
3214
3215 switch (a) {
3216
3217 case ACTION_POWEROFF:
3218 method = "PowerOff";
3219 description = "power off system";
3220 break;
3221
3222 case ACTION_REBOOT:
3223 method = "Reboot";
3224 description = "reboot system";
3225 break;
3226
3227 case ACTION_HALT:
3228 method = "Halt";
3229 description = "halt system";
3230 break;
3231
3232 case ACTION_SUSPEND:
3233 method = "Suspend";
3234 description = "suspend system";
3235 break;
3236
3237 case ACTION_HIBERNATE:
3238 method = "Hibernate";
3239 description = "hibernate system";
3240 break;
3241
3242 case ACTION_HYBRID_SLEEP:
3243 method = "HybridSleep";
3244 description = "put system into hybrid sleep";
3245 break;
3246
3247 case ACTION_SUSPEND_THEN_HIBERNATE:
3248 method = "SuspendThenHibernate";
3249 description = "put system into suspend followed by hibernate";
3250 break;
3251
3252 default:
3253 return -EINVAL;
3254 }
3255
3256 polkit_agent_open_maybe();
3257 (void) logind_set_wall_message();
3258
3259 log_debug("%s org.freedesktop.login1.Manager %s dbus call.", arg_dry_run ? "Would execute" : "Executing", method);
3260 if (arg_dry_run)
3261 return 0;
3262
3263 r = sd_bus_call_method(
3264 bus,
3265 "org.freedesktop.login1",
3266 "/org/freedesktop/login1",
3267 "org.freedesktop.login1.Manager",
3268 method,
3269 &error,
3270 NULL,
3271 "b", arg_ask_password);
3272 if (r < 0)
3273 return log_error_errno(r, "Failed to %s via logind: %s", description, bus_error_message(&error, r));
3274
3275 return 0;
3276 #else
3277 return -ENOSYS;
3278 #endif
3279 }
3280
3281 static int logind_check_inhibitors(enum action a) {
3282 #if ENABLE_LOGIND
3283 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
3284 _cleanup_strv_free_ char **sessions = NULL;
3285 const char *what, *who, *why, *mode;
3286 uint32_t uid, pid;
3287 sd_bus *bus;
3288 unsigned c = 0;
3289 char **s;
3290 int r;
3291
3292 if (arg_ignore_inhibitors || arg_force > 0)
3293 return 0;
3294
3295 if (arg_when > 0)
3296 return 0;
3297
3298 if (geteuid() == 0)
3299 return 0;
3300
3301 if (!on_tty())
3302 return 0;
3303
3304 if (arg_transport != BUS_TRANSPORT_LOCAL)
3305 return 0;
3306
3307 r = acquire_bus(BUS_FULL, &bus);
3308 if (r < 0)
3309 return r;
3310
3311 r = sd_bus_call_method(
3312 bus,
3313 "org.freedesktop.login1",
3314 "/org/freedesktop/login1",
3315 "org.freedesktop.login1.Manager",
3316 "ListInhibitors",
3317 NULL,
3318 &reply,
3319 NULL);
3320 if (r < 0)
3321 /* If logind is not around, then there are no inhibitors... */
3322 return 0;
3323
3324 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
3325 if (r < 0)
3326 return bus_log_parse_error(r);
3327
3328 while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
3329 _cleanup_free_ char *comm = NULL, *user = NULL;
3330 _cleanup_strv_free_ char **sv = NULL;
3331
3332 if (!streq(mode, "block"))
3333 continue;
3334
3335 sv = strv_split(what, ":");
3336 if (!sv)
3337 return log_oom();
3338
3339 if (!pid_is_valid((pid_t) pid)) {
3340 log_error("Invalid PID "PID_FMT".", (pid_t) pid);
3341 return -ERANGE;
3342 }
3343
3344 if (!strv_contains(sv,
3345 IN_SET(a,
3346 ACTION_HALT,
3347 ACTION_POWEROFF,
3348 ACTION_REBOOT,
3349 ACTION_KEXEC) ? "shutdown" : "sleep"))
3350 continue;
3351
3352 get_process_comm(pid, &comm);
3353 user = uid_to_name(uid);
3354
3355 log_warning("Operation inhibited by \"%s\" (PID "PID_FMT" \"%s\", user %s), reason is \"%s\".",
3356 who, (pid_t) pid, strna(comm), strna(user), why);
3357
3358 c++;
3359 }
3360 if (r < 0)
3361 return bus_log_parse_error(r);
3362
3363 r = sd_bus_message_exit_container(reply);
3364 if (r < 0)
3365 return bus_log_parse_error(r);
3366
3367 /* Check for current sessions */
3368 sd_get_sessions(&sessions);
3369 STRV_FOREACH(s, sessions) {
3370 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
3371
3372 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
3373 continue;
3374
3375 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
3376 continue;
3377
3378 if (sd_session_get_type(*s, &type) < 0 || !STR_IN_SET(type, "x11", "wayland", "tty", "mir"))
3379 continue;
3380
3381 sd_session_get_tty(*s, &tty);
3382 sd_session_get_seat(*s, &seat);
3383 sd_session_get_service(*s, &service);
3384 user = uid_to_name(uid);
3385
3386 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
3387 c++;
3388 }
3389
3390 if (c <= 0)
3391 return 0;
3392
3393 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
3394 action_table[a].verb);
3395
3396 return -EPERM;
3397 #else
3398 return 0;
3399 #endif
3400 }
3401
3402 static int logind_prepare_firmware_setup(void) {
3403 #if ENABLE_LOGIND
3404 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3405 sd_bus *bus;
3406 int r;
3407
3408 r = acquire_bus(BUS_FULL, &bus);
3409 if (r < 0)
3410 return r;
3411
3412 r = sd_bus_call_method(
3413 bus,
3414 "org.freedesktop.login1",
3415 "/org/freedesktop/login1",
3416 "org.freedesktop.login1.Manager",
3417 "SetRebootToFirmwareSetup",
3418 &error,
3419 NULL,
3420 "b", true);
3421 if (r < 0)
3422 return log_error_errno(r, "Cannot indicate to EFI to boot into setup mode: %s", bus_error_message(&error, r));
3423
3424 return 0;
3425 #else
3426 log_error("Cannot remotely indicate to EFI to boot into setup mode.");
3427 return -ENOSYS;
3428 #endif
3429 }
3430
3431 static int prepare_firmware_setup(void) {
3432 int r;
3433
3434 if (!arg_firmware_setup)
3435 return 0;
3436
3437 if (arg_transport == BUS_TRANSPORT_LOCAL) {
3438
3439 r = efi_set_reboot_to_firmware(true);
3440 if (r < 0)
3441 log_debug_errno(r, "Cannot indicate to EFI to boot into setup mode, will retry via logind: %m");
3442 else
3443 return r;
3444 }
3445
3446 return logind_prepare_firmware_setup();
3447 }
3448
3449 static int load_kexec_kernel(void) {
3450 _cleanup_(boot_config_free) BootConfig config = {};
3451 _cleanup_free_ char *where = NULL, *kernel = NULL, *initrd = NULL, *options = NULL;
3452 const BootEntry *e;
3453 pid_t pid;
3454 int r;
3455
3456 if (kexec_loaded()) {
3457 log_debug("Kexec kernel already loaded.");
3458 return 0;
3459 }
3460
3461 if (access(KEXEC, X_OK) < 0)
3462 return log_error_errno(errno, KEXEC" is not available: %m");
3463
3464 r = find_esp_and_warn(arg_esp_path, false, &where, NULL, NULL, NULL, NULL);
3465 if (r == -ENOKEY) /* find_esp_and_warn() doesn't warn about this case */
3466 return log_error_errno(r, "Cannot find the ESP partition mount point.");
3467 if (r < 0) /* But it logs about all these cases, hence don't log here again */
3468 return r;
3469
3470 r = boot_entries_load_config(where, &config);
3471 if (r < 0)
3472 return log_error_errno(r, "Failed to load bootspec config from \"%s/loader\": %m", where);
3473
3474 if (config.default_entry < 0) {
3475 log_error("No entry suitable as default, refusing to guess.");
3476 return -ENOENT;
3477 }
3478 e = &config.entries[config.default_entry];
3479
3480 if (strv_length(e->initrd) > 1) {
3481 log_error("Boot entry specifies multiple initrds, which is not supported currently.");
3482 return -EINVAL;
3483 }
3484
3485 kernel = path_join(NULL, where, e->kernel);
3486 if (!strv_isempty(e->initrd))
3487 initrd = path_join(NULL, where, *e->initrd);
3488 options = strv_join(e->options, " ");
3489 if (!options)
3490 return log_oom();
3491
3492 log_full(arg_quiet ? LOG_DEBUG : LOG_INFO,
3493 "%s "KEXEC" --load \"%s\" --append \"%s\"%s%s%s",
3494 arg_dry_run ? "Would run" : "Running",
3495 kernel,
3496 options,
3497 initrd ? " --initrd \"" : NULL, strempty(initrd), initrd ? "\"" : "");
3498 if (arg_dry_run)
3499 return 0;
3500
3501 r = safe_fork("(kexec)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
3502 if (r < 0)
3503 return r;
3504 if (r == 0) {
3505 const char* const args[] = {
3506 KEXEC,
3507 "--load", kernel,
3508 "--append", options,
3509 initrd ? "--initrd" : NULL, initrd,
3510 NULL };
3511
3512 /* Child */
3513 execv(args[0], (char * const *) args);
3514 _exit(EXIT_FAILURE);
3515 }
3516
3517 r = wait_for_terminate_and_check("kexec", pid, WAIT_LOG);
3518 if (r < 0)
3519 return r;
3520 if (r > 0)
3521 /* Command failed */
3522 return -EPROTO;
3523 return 0;
3524 }
3525
3526 static int set_exit_code(uint8_t code) {
3527 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3528 sd_bus *bus;
3529 int r;
3530
3531 r = acquire_bus(BUS_MANAGER, &bus);
3532 if (r < 0)
3533 return r;
3534
3535 r = sd_bus_call_method(
3536 bus,
3537 "org.freedesktop.systemd1",
3538 "/org/freedesktop/systemd1",
3539 "org.freedesktop.systemd1.Manager",
3540 "SetExitCode",
3541 &error,
3542 NULL,
3543 "y", code);
3544 if (r < 0)
3545 return log_error_errno(r, "Failed to set exit code: %s", bus_error_message(&error, r));
3546
3547 return 0;
3548 }
3549
3550 static int start_special(int argc, char *argv[], void *userdata) {
3551 enum action a;
3552 int r;
3553 bool termination_action; /* an action that terminates the manager,
3554 * can be performed also by signal. */
3555
3556 assert(argv);
3557
3558 a = verb_to_action(argv[0]);
3559
3560 r = logind_check_inhibitors(a);
3561 if (r < 0)
3562 return r;
3563
3564 if (arg_force >= 2) {
3565 r = must_be_root();
3566 if (r < 0)
3567 return r;
3568 }
3569
3570 r = prepare_firmware_setup();
3571 if (r < 0)
3572 return r;
3573
3574 if (a == ACTION_REBOOT && argc > 1) {
3575 r = update_reboot_parameter_and_warn(argv[1]);
3576 if (r < 0)
3577 return r;
3578
3579 } else if (a == ACTION_KEXEC) {
3580 r = load_kexec_kernel();
3581 if (r < 0 && arg_force >= 1)
3582 log_notice("Failed to load kexec kernel, continuing without.");
3583 else if (r < 0)
3584 return r;
3585
3586 } else if (a == ACTION_EXIT && argc > 1) {
3587 uint8_t code;
3588
3589 /* If the exit code is not given on the command line,
3590 * don't reset it to zero: just keep it as it might
3591 * have been set previously. */
3592
3593 r = safe_atou8(argv[1], &code);
3594 if (r < 0)
3595 return log_error_errno(r, "Invalid exit code.");
3596
3597 r = set_exit_code(code);
3598 if (r < 0)
3599 return r;
3600 }
3601
3602 termination_action = IN_SET(a,
3603 ACTION_HALT,
3604 ACTION_POWEROFF,
3605 ACTION_REBOOT);
3606 if (termination_action && arg_force >= 2)
3607 return halt_now(a);
3608
3609 if (arg_force >= 1 &&
3610 (termination_action || IN_SET(a, ACTION_KEXEC, ACTION_EXIT)))
3611 r = trivial_method(argc, argv, userdata);
3612 else {
3613 /* First try logind, to allow authentication with polkit */
3614 if (IN_SET(a,
3615 ACTION_POWEROFF,
3616 ACTION_REBOOT,
3617 ACTION_HALT,
3618 ACTION_SUSPEND,
3619 ACTION_HIBERNATE,
3620 ACTION_HYBRID_SLEEP,
3621 ACTION_SUSPEND_THEN_HIBERNATE)) {
3622
3623 r = logind_reboot(a);
3624 if (r >= 0)
3625 return r;
3626 if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS))
3627 /* requested operation is not supported or already in progress */
3628 return r;
3629
3630 /* On all other errors, try low-level operation. In order to minimize the difference between
3631 * operation with and without logind, we explicitly enable non-blocking mode for this, as
3632 * logind's shutdown operations are always non-blocking. */
3633
3634 arg_no_block = true;
3635
3636 } else if (IN_SET(a, ACTION_EXIT, ACTION_KEXEC))
3637 /* Since exit/kexec are so close in behaviour to power-off/reboot, let's also make them
3638 * asynchronous, in order to not confuse the user needlessly with unexpected behaviour. */
3639 arg_no_block = true;
3640
3641 r = start_unit(argc, argv, userdata);
3642 }
3643
3644 if (termination_action && arg_force < 2 &&
3645 IN_SET(r, -ENOENT, -ETIMEDOUT))
3646 log_notice("It is possible to perform action directly, see discussion of --force --force in man:systemctl(1).");
3647
3648 return r;
3649 }
3650
3651 static int start_system_special(int argc, char *argv[], void *userdata) {
3652 /* Like start_special above, but raises an error when running in user mode */
3653
3654 if (arg_scope != UNIT_FILE_SYSTEM) {
3655 log_error("Bad action for %s mode.",
3656 arg_scope == UNIT_FILE_GLOBAL ? "--global" : "--user");
3657 return -EINVAL;
3658 }
3659
3660 return start_special(argc, argv, userdata);
3661 }
3662
3663 static int check_unit_generic(int code, const UnitActiveState good_states[], int nb_states, char **args) {
3664 _cleanup_strv_free_ char **names = NULL;
3665 UnitActiveState active_state;
3666 sd_bus *bus;
3667 char **name;
3668 int r, i;
3669 bool found = false;
3670
3671 r = acquire_bus(BUS_MANAGER, &bus);
3672 if (r < 0)
3673 return r;
3674
3675 r = expand_names(bus, args, NULL, &names);
3676 if (r < 0)
3677 return log_error_errno(r, "Failed to expand names: %m");
3678
3679 STRV_FOREACH(name, names) {
3680 r = get_state_one_unit(bus, *name, &active_state);
3681 if (r < 0)
3682 return r;
3683
3684 if (!arg_quiet)
3685 puts(unit_active_state_to_string(active_state));
3686
3687 for (i = 0; i < nb_states; ++i)
3688 if (good_states[i] == active_state)
3689 found = true;
3690 }
3691
3692 /* use the given return code for the case that we won't find
3693 * any unit which matches the list */
3694 return found ? 0 : code;
3695 }
3696
3697 static int check_unit_active(int argc, char *argv[], void *userdata) {
3698 static const UnitActiveState states[] = {
3699 UNIT_ACTIVE,
3700 UNIT_RELOADING,
3701 };
3702
3703 /* According to LSB: 3, "program is not running" */
3704 return check_unit_generic(EXIT_PROGRAM_NOT_RUNNING, states, ELEMENTSOF(states), strv_skip(argv, 1));
3705 }
3706
3707 static int check_unit_failed(int argc, char *argv[], void *userdata) {
3708 static const UnitActiveState states[] = {
3709 UNIT_FAILED,
3710 };
3711
3712 return check_unit_generic(EXIT_PROGRAM_DEAD_AND_PID_EXISTS, states, ELEMENTSOF(states), strv_skip(argv, 1));
3713 }
3714
3715 static int kill_unit(int argc, char *argv[], void *userdata) {
3716 _cleanup_strv_free_ char **names = NULL;
3717 char *kill_who = NULL, **name;
3718 sd_bus *bus;
3719 int r, q;
3720
3721 r = acquire_bus(BUS_MANAGER, &bus);
3722 if (r < 0)
3723 return r;
3724
3725 polkit_agent_open_maybe();
3726
3727 if (!arg_kill_who)
3728 arg_kill_who = "all";
3729
3730 /* --fail was specified */
3731 if (streq(arg_job_mode, "fail"))
3732 kill_who = strjoina(arg_kill_who, "-fail");
3733
3734 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
3735 if (r < 0)
3736 return log_error_errno(r, "Failed to expand names: %m");
3737
3738 STRV_FOREACH(name, names) {
3739 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3740
3741 q = sd_bus_call_method(
3742 bus,
3743 "org.freedesktop.systemd1",
3744 "/org/freedesktop/systemd1",
3745 "org.freedesktop.systemd1.Manager",
3746 "KillUnit",
3747 &error,
3748 NULL,
3749 "ssi", *name, kill_who ? kill_who : arg_kill_who, arg_signal);
3750 if (q < 0) {
3751 log_error_errno(q, "Failed to kill unit %s: %s", *name, bus_error_message(&error, q));
3752 if (r == 0)
3753 r = q;
3754 }
3755 }
3756
3757 return r;
3758 }
3759
3760 typedef struct ExecStatusInfo {
3761 char *name;
3762
3763 char *path;
3764 char **argv;
3765
3766 bool ignore;
3767
3768 usec_t start_timestamp;
3769 usec_t exit_timestamp;
3770 pid_t pid;
3771 int code;
3772 int status;
3773
3774 LIST_FIELDS(struct ExecStatusInfo, exec);
3775 } ExecStatusInfo;
3776
3777 static void exec_status_info_free(ExecStatusInfo *i) {
3778 assert(i);
3779
3780 free(i->name);
3781 free(i->path);
3782 strv_free(i->argv);
3783 free(i);
3784 }
3785
3786 static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
3787 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
3788 const char *path;
3789 uint32_t pid;
3790 int32_t code, status;
3791 int ignore, r;
3792
3793 assert(m);
3794 assert(i);
3795
3796 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
3797 if (r < 0)
3798 return bus_log_parse_error(r);
3799 else if (r == 0)
3800 return 0;
3801
3802 r = sd_bus_message_read(m, "s", &path);
3803 if (r < 0)
3804 return bus_log_parse_error(r);
3805
3806 i->path = strdup(path);
3807 if (!i->path)
3808 return log_oom();
3809
3810 r = sd_bus_message_read_strv(m, &i->argv);
3811 if (r < 0)
3812 return bus_log_parse_error(r);
3813
3814 r = sd_bus_message_read(m,
3815 "bttttuii",
3816 &ignore,
3817 &start_timestamp, &start_timestamp_monotonic,
3818 &exit_timestamp, &exit_timestamp_monotonic,
3819 &pid,
3820 &code, &status);
3821 if (r < 0)
3822 return bus_log_parse_error(r);
3823
3824 i->ignore = ignore;
3825 i->start_timestamp = (usec_t) start_timestamp;
3826 i->exit_timestamp = (usec_t) exit_timestamp;
3827 i->pid = (pid_t) pid;
3828 i->code = code;
3829 i->status = status;
3830
3831 r = sd_bus_message_exit_container(m);
3832 if (r < 0)
3833 return bus_log_parse_error(r);
3834
3835 return 1;
3836 }
3837
3838 typedef struct UnitCondition {
3839 char *name;
3840 char *param;
3841 bool trigger;
3842 bool negate;
3843 int tristate;
3844
3845 LIST_FIELDS(struct UnitCondition, conditions);
3846 } UnitCondition;
3847
3848 static void unit_condition_free(UnitCondition *c) {
3849 if (!c)
3850 return;
3851
3852 free(c->name);
3853 free(c->param);
3854 free(c);
3855 }
3856
3857 DEFINE_TRIVIAL_CLEANUP_FUNC(UnitCondition*, unit_condition_free);
3858
3859 typedef struct UnitStatusInfo {
3860 const char *id;
3861 const char *load_state;
3862 const char *active_state;
3863 const char *sub_state;
3864 const char *unit_file_state;
3865 const char *unit_file_preset;
3866
3867 const char *description;
3868 const char *following;
3869
3870 char **documentation;
3871
3872 const char *fragment_path;
3873 const char *source_path;
3874 const char *control_group;
3875
3876 char **dropin_paths;
3877
3878 const char *load_error;
3879 const char *result;
3880
3881 usec_t inactive_exit_timestamp;
3882 usec_t inactive_exit_timestamp_monotonic;
3883 usec_t active_enter_timestamp;
3884 usec_t active_exit_timestamp;
3885 usec_t inactive_enter_timestamp;
3886
3887 bool need_daemon_reload;
3888 bool transient;
3889
3890 /* Service */
3891 pid_t main_pid;
3892 pid_t control_pid;
3893 const char *status_text;
3894 const char *pid_file;
3895 bool running:1;
3896 int status_errno;
3897
3898 usec_t start_timestamp;
3899 usec_t exit_timestamp;
3900
3901 int exit_code, exit_status;
3902
3903 usec_t condition_timestamp;
3904 bool condition_result;
3905 LIST_HEAD(UnitCondition, conditions);
3906
3907 usec_t assert_timestamp;
3908 bool assert_result;
3909 bool failed_assert_trigger;
3910 bool failed_assert_negate;
3911 const char *failed_assert;
3912 const char *failed_assert_parameter;
3913 usec_t next_elapse_real;
3914 usec_t next_elapse_monotonic;
3915
3916 /* Socket */
3917 unsigned n_accepted;
3918 unsigned n_connections;
3919 unsigned n_refused;
3920 bool accept;
3921
3922 /* Pairs of type, path */
3923 char **listen;
3924
3925 /* Device */
3926 const char *sysfs_path;
3927
3928 /* Mount, Automount */
3929 const char *where;
3930
3931 /* Swap */
3932 const char *what;
3933
3934 /* CGroup */
3935 uint64_t memory_current;
3936 uint64_t memory_min;
3937 uint64_t memory_low;
3938 uint64_t memory_high;
3939 uint64_t memory_max;
3940 uint64_t memory_swap_max;
3941 uint64_t memory_limit;
3942 uint64_t cpu_usage_nsec;
3943 uint64_t tasks_current;
3944 uint64_t tasks_max;
3945
3946 uint64_t ip_ingress_bytes;
3947 uint64_t ip_egress_bytes;
3948
3949 LIST_HEAD(ExecStatusInfo, exec);
3950 } UnitStatusInfo;
3951
3952 static void unit_status_info_free(UnitStatusInfo *info) {
3953 ExecStatusInfo *p;
3954 UnitCondition *c;
3955
3956 strv_free(info->documentation);
3957 strv_free(info->dropin_paths);
3958 strv_free(info->listen);
3959
3960 while ((c = info->conditions)) {
3961 LIST_REMOVE(conditions, info->conditions, c);
3962 unit_condition_free(c);
3963 }
3964
3965 while ((p = info->exec)) {
3966 LIST_REMOVE(exec, info->exec, p);
3967 exec_status_info_free(p);
3968 }
3969 }
3970
3971 static void print_status_info(
3972 sd_bus *bus,
3973 UnitStatusInfo *i,
3974 bool *ellipsized) {
3975
3976 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], since2[FORMAT_TIMESTAMP_MAX];
3977 const char *s1, *s2, *active_on, *active_off, *on, *off, *ss;
3978 _cleanup_free_ char *formatted_path = NULL;
3979 ExecStatusInfo *p;
3980 usec_t timestamp;
3981 const char *path;
3982 char **t, **t2;
3983 int r;
3984
3985 assert(i);
3986
3987 /* This shows pretty information about a unit. See
3988 * print_property() for a low-level property printer */
3989
3990 if (streq_ptr(i->active_state, "failed")) {
3991 active_on = ansi_highlight_red();
3992 active_off = ansi_normal();
3993 } else if (STRPTR_IN_SET(i->active_state, "active", "reloading")) {
3994 active_on = ansi_highlight_green();
3995 active_off = ansi_normal();
3996 } else
3997 active_on = active_off = "";
3998
3999 printf("%s%s%s %s", active_on, special_glyph(BLACK_CIRCLE), active_off, strna(i->id));
4000
4001 if (i->description && !streq_ptr(i->id, i->description))
4002 printf(" - %s", i->description);
4003
4004 printf("\n");
4005
4006 if (i->following)
4007 printf(" Follow: unit currently follows state of %s\n", i->following);
4008
4009 if (STRPTR_IN_SET(i->load_state, "error", "not-found", "bad-setting")) {
4010 on = ansi_highlight_red();
4011 off = ansi_normal();
4012 } else
4013 on = off = "";
4014
4015 path = i->source_path ?: i->fragment_path;
4016 if (path && terminal_urlify_path(path, NULL, &formatted_path) >= 0)
4017 path = formatted_path;
4018
4019 if (!isempty(i->load_error))
4020 printf(" Loaded: %s%s%s (Reason: %s)\n",
4021 on, strna(i->load_state), off, i->load_error);
4022 else if (path && !isempty(i->unit_file_state) && !isempty(i->unit_file_preset) &&
4023 !STR_IN_SET(i->unit_file_state, "generated", "transient"))
4024 printf(" Loaded: %s%s%s (%s; %s; vendor preset: %s)\n",
4025 on, strna(i->load_state), off, path, i->unit_file_state, i->unit_file_preset);
4026 else if (path && !isempty(i->unit_file_state))
4027 printf(" Loaded: %s%s%s (%s; %s)\n",
4028 on, strna(i->load_state), off, path, i->unit_file_state);
4029 else if (path)
4030 printf(" Loaded: %s%s%s (%s)\n",
4031 on, strna(i->load_state), off, path);
4032 else
4033 printf(" Loaded: %s%s%s\n",
4034 on, strna(i->load_state), off);
4035
4036 if (i->transient)
4037 printf("Transient: yes\n");
4038
4039 if (!strv_isempty(i->dropin_paths)) {
4040 _cleanup_free_ char *dir = NULL;
4041 bool last = false;
4042 char ** dropin;
4043
4044 STRV_FOREACH(dropin, i->dropin_paths) {
4045 _cleanup_free_ char *dropin_formatted = NULL;
4046 const char *df;
4047
4048 if (!dir || last) {
4049 printf(dir ? " " :
4050 " Drop-In: ");
4051
4052 dir = mfree(dir);
4053
4054 dir = dirname_malloc(*dropin);
4055 if (!dir) {
4056 log_oom();
4057 return;
4058 }
4059
4060 printf("%s\n"
4061 " %s", dir,
4062 special_glyph(TREE_RIGHT));
4063 }
4064
4065 last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
4066
4067 if (terminal_urlify_path(*dropin, basename(*dropin), &dropin_formatted) >= 0)
4068 df = dropin_formatted;
4069 else
4070 df = *dropin;
4071
4072 printf("%s%s", df, last ? "\n" : ", ");
4073 }
4074 }
4075
4076 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
4077 if (ss)
4078 printf(" Active: %s%s (%s)%s",
4079 active_on, strna(i->active_state), ss, active_off);
4080 else
4081 printf(" Active: %s%s%s",
4082 active_on, strna(i->active_state), active_off);
4083
4084 if (!isempty(i->result) && !streq(i->result, "success"))
4085 printf(" (Result: %s)", i->result);
4086
4087 timestamp = STRPTR_IN_SET(i->active_state, "active", "reloading") ? i->active_enter_timestamp :
4088 STRPTR_IN_SET(i->active_state, "inactive", "failed") ? i->inactive_enter_timestamp :
4089 STRPTR_IN_SET(i->active_state, "activating") ? i->inactive_exit_timestamp :
4090 i->active_exit_timestamp;
4091
4092 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
4093 s2 = format_timestamp(since2, sizeof(since2), timestamp);
4094
4095 if (s1)
4096 printf(" since %s; %s\n", s2, s1);
4097 else if (s2)
4098 printf(" since %s\n", s2);
4099 else
4100 printf("\n");
4101
4102 if (endswith(i->id, ".timer")) {
4103 char tstamp1[FORMAT_TIMESTAMP_RELATIVE_MAX],
4104 tstamp2[FORMAT_TIMESTAMP_MAX];
4105 const char *next_rel_time, *next_time;
4106 dual_timestamp nw, next = {i->next_elapse_real,
4107 i->next_elapse_monotonic};
4108 usec_t next_elapse;
4109
4110 printf(" Trigger: ");
4111
4112 dual_timestamp_get(&nw);
4113 next_elapse = calc_next_elapse(&nw, &next);
4114 next_rel_time = format_timestamp_relative(tstamp1, sizeof tstamp1, next_elapse);
4115 next_time = format_timestamp(tstamp2, sizeof tstamp2, next_elapse);
4116
4117 if (next_time && next_rel_time)
4118 printf("%s; %s\n", next_time, next_rel_time);
4119 else
4120 printf("n/a\n");
4121 }
4122
4123 if (!i->condition_result && i->condition_timestamp > 0) {
4124 UnitCondition *c;
4125 int n = 0;
4126
4127 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
4128 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
4129
4130 printf("Condition: start %scondition failed%s at %s%s%s\n",
4131 ansi_highlight_yellow(), ansi_normal(),
4132 s2, s1 ? "; " : "", strempty(s1));
4133
4134 LIST_FOREACH(conditions, c, i->conditions)
4135 if (c->tristate < 0)
4136 n++;
4137
4138 LIST_FOREACH(conditions, c, i->conditions)
4139 if (c->tristate < 0)
4140 printf(" %s %s=%s%s%s was not met\n",
4141 --n ? special_glyph(TREE_BRANCH) : special_glyph(TREE_RIGHT),
4142 c->name,
4143 c->trigger ? "|" : "",
4144 c->negate ? "!" : "",
4145 c->param);
4146 }
4147
4148 if (!i->assert_result && i->assert_timestamp > 0) {
4149 s1 = format_timestamp_relative(since1, sizeof(since1), i->assert_timestamp);
4150 s2 = format_timestamp(since2, sizeof(since2), i->assert_timestamp);
4151
4152 printf(" Assert: start %sassertion failed%s at %s%s%s\n",
4153 ansi_highlight_red(), ansi_normal(),
4154 s2, s1 ? "; " : "", strempty(s1));
4155 if (i->failed_assert_trigger)
4156 printf(" none of the trigger assertions were met\n");
4157 else if (i->failed_assert)
4158 printf(" %s=%s%s was not met\n",
4159 i->failed_assert,
4160 i->failed_assert_negate ? "!" : "",
4161 i->failed_assert_parameter);
4162 }
4163
4164 if (i->sysfs_path)
4165 printf(" Device: %s\n", i->sysfs_path);
4166 if (i->where)
4167 printf(" Where: %s\n", i->where);
4168 if (i->what)
4169 printf(" What: %s\n", i->what);
4170
4171 STRV_FOREACH(t, i->documentation) {
4172 _cleanup_free_ char *formatted = NULL;
4173 const char *q;
4174
4175 if (terminal_urlify(*t, NULL, &formatted) >= 0)
4176 q = formatted;
4177 else
4178 q = *t;
4179
4180 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", q);
4181 }
4182
4183 STRV_FOREACH_PAIR(t, t2, i->listen)
4184 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
4185
4186 if (i->accept) {
4187 printf(" Accepted: %u; Connected: %u;", i->n_accepted, i->n_connections);
4188 if (i->n_refused)
4189 printf(" Refused: %u", i->n_refused);
4190 printf("\n");
4191 }
4192
4193 LIST_FOREACH(exec, p, i->exec) {
4194 _cleanup_free_ char *argv = NULL;
4195 bool good;
4196
4197 /* Only show exited processes here */
4198 if (p->code == 0)
4199 continue;
4200
4201 argv = strv_join(p->argv, " ");
4202 printf(" Process: "PID_FMT" %s=%s ", p->pid, p->name, strna(argv));
4203
4204 good = is_clean_exit(p->code, p->status, EXIT_CLEAN_DAEMON, NULL);
4205 if (!good) {
4206 on = ansi_highlight_red();
4207 off = ansi_normal();
4208 } else
4209 on = off = "";
4210
4211 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
4212
4213 if (p->code == CLD_EXITED) {
4214 const char *c;
4215
4216 printf("status=%i", p->status);
4217
4218 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
4219 if (c)
4220 printf("/%s", c);
4221
4222 } else
4223 printf("signal=%s", signal_to_string(p->status));
4224
4225 printf(")%s\n", off);
4226
4227 if (i->main_pid == p->pid &&
4228 i->start_timestamp == p->start_timestamp &&
4229 i->exit_timestamp == p->start_timestamp)
4230 /* Let's not show this twice */
4231 i->main_pid = 0;
4232
4233 if (p->pid == i->control_pid)
4234 i->control_pid = 0;
4235 }
4236
4237 if (i->main_pid > 0 || i->control_pid > 0) {
4238 if (i->main_pid > 0) {
4239 printf(" Main PID: "PID_FMT, i->main_pid);
4240
4241 if (i->running) {
4242
4243 if (arg_transport == BUS_TRANSPORT_LOCAL) {
4244 _cleanup_free_ char *comm = NULL;
4245
4246 (void) get_process_comm(i->main_pid, &comm);
4247 if (comm)
4248 printf(" (%s)", comm);
4249 }
4250
4251 } else if (i->exit_code > 0) {
4252 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
4253
4254 if (i->exit_code == CLD_EXITED) {
4255 const char *c;
4256
4257 printf("status=%i", i->exit_status);
4258
4259 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
4260 if (c)
4261 printf("/%s", c);
4262
4263 } else
4264 printf("signal=%s", signal_to_string(i->exit_status));
4265 printf(")");
4266 }
4267 }
4268
4269 if (i->control_pid > 0) {
4270 _cleanup_free_ char *c = NULL;
4271
4272 if (i->main_pid > 0)
4273 fputs("; Control PID: ", stdout);
4274 else
4275 fputs("Cntrl PID: ", stdout); /* if first in column, abbreviated so it fits alignment */
4276
4277 printf(PID_FMT, i->control_pid);
4278
4279 if (arg_transport == BUS_TRANSPORT_LOCAL) {
4280 (void) get_process_comm(i->control_pid, &c);
4281 if (c)
4282 printf(" (%s)", c);
4283 }
4284 }
4285
4286 printf("\n");
4287 }
4288
4289 if (i->status_text)
4290 printf(" Status: \"%s\"\n", i->status_text);
4291 if (i->status_errno > 0)
4292 printf(" Error: %i (%s)\n", i->status_errno, strerror(i->status_errno));
4293
4294 if (i->ip_ingress_bytes != (uint64_t) -1 && i->ip_egress_bytes != (uint64_t) -1) {
4295 char buf_in[FORMAT_BYTES_MAX], buf_out[FORMAT_BYTES_MAX];
4296
4297 printf(" IP: %s in, %s out\n",
4298 format_bytes(buf_in, sizeof(buf_in), i->ip_ingress_bytes),
4299 format_bytes(buf_out, sizeof(buf_out), i->ip_egress_bytes));
4300 }
4301
4302 if (i->tasks_current != (uint64_t) -1) {
4303 printf(" Tasks: %" PRIu64, i->tasks_current);
4304
4305 if (i->tasks_max != (uint64_t) -1)
4306 printf(" (limit: %" PRIu64 ")\n", i->tasks_max);
4307 else
4308 printf("\n");
4309 }
4310
4311 if (i->memory_current != (uint64_t) -1) {
4312 char buf[FORMAT_BYTES_MAX];
4313
4314 printf(" Memory: %s", format_bytes(buf, sizeof(buf), i->memory_current));
4315
4316 if (i->memory_min > 0 || i->memory_low > 0 ||
4317 i->memory_high != CGROUP_LIMIT_MAX || i->memory_max != CGROUP_LIMIT_MAX ||
4318 i->memory_swap_max != CGROUP_LIMIT_MAX ||
4319 i->memory_limit != CGROUP_LIMIT_MAX) {
4320 const char *prefix = "";
4321
4322 printf(" (");
4323 if (i->memory_min > 0) {
4324 printf("%smin: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_min));
4325 prefix = " ";
4326 }
4327 if (i->memory_low > 0) {
4328 printf("%slow: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_low));
4329 prefix = " ";
4330 }
4331 if (i->memory_high != CGROUP_LIMIT_MAX) {
4332 printf("%shigh: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_high));
4333 prefix = " ";
4334 }
4335 if (i->memory_max != CGROUP_LIMIT_MAX) {
4336 printf("%smax: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_max));
4337 prefix = " ";
4338 }
4339 if (i->memory_swap_max != CGROUP_LIMIT_MAX) {
4340 printf("%sswap max: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_swap_max));
4341 prefix = " ";
4342 }
4343 if (i->memory_limit != CGROUP_LIMIT_MAX) {
4344 printf("%slimit: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_limit));
4345 prefix = " ";
4346 }
4347 printf(")");
4348 }
4349 printf("\n");
4350 }
4351
4352 if (i->cpu_usage_nsec != (uint64_t) -1) {
4353 char buf[FORMAT_TIMESPAN_MAX];
4354 printf(" CPU: %s\n", format_timespan(buf, sizeof(buf), i->cpu_usage_nsec / NSEC_PER_USEC, USEC_PER_MSEC));
4355 }
4356
4357 if (i->control_group) {
4358 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
4359 static const char prefix[] = " ";
4360 unsigned c;
4361
4362 printf(" CGroup: %s\n", i->control_group);
4363
4364 c = columns();
4365 if (c > sizeof(prefix) - 1)
4366 c -= sizeof(prefix) - 1;
4367 else
4368 c = 0;
4369
4370 r = unit_show_processes(bus, i->id, i->control_group, prefix, c, get_output_flags(), &error);
4371 if (r == -EBADR) {
4372 unsigned k = 0;
4373 pid_t extra[2];
4374
4375 /* Fallback for older systemd versions where the GetUnitProcesses() call is not yet available */
4376
4377 if (i->main_pid > 0)
4378 extra[k++] = i->main_pid;
4379
4380 if (i->control_pid > 0)
4381 extra[k++] = i->control_pid;
4382
4383 show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, extra, k, get_output_flags());
4384 } else if (r < 0)
4385 log_warning_errno(r, "Failed to dump process list for '%s', ignoring: %s", i->id, bus_error_message(&error, r));
4386 }
4387
4388 if (i->id && arg_transport == BUS_TRANSPORT_LOCAL)
4389 show_journal_by_unit(
4390 stdout,
4391 i->id,
4392 arg_output,
4393 0,
4394 i->inactive_exit_timestamp_monotonic,
4395 arg_lines,
4396 getuid(),
4397 get_output_flags() | OUTPUT_BEGIN_NEWLINE,
4398 SD_JOURNAL_LOCAL_ONLY,
4399 arg_scope == UNIT_FILE_SYSTEM,
4400 ellipsized);
4401
4402 if (i->need_daemon_reload)
4403 warn_unit_file_changed(i->id);
4404 }
4405
4406 static void show_unit_help(UnitStatusInfo *i) {
4407 char **p;
4408
4409 assert(i);
4410
4411 if (!i->documentation) {
4412 log_info("Documentation for %s not known.", i->id);
4413 return;
4414 }
4415
4416 STRV_FOREACH(p, i->documentation)
4417 if (startswith(*p, "man:"))
4418 show_man_page(*p + 4, false);
4419 else
4420 log_info("Can't show: %s", *p);
4421 }
4422
4423 static int map_main_pid(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
4424 UnitStatusInfo *i = userdata;
4425 uint32_t u;
4426 int r;
4427
4428 r = sd_bus_message_read(m, "u", &u);
4429 if (r < 0)
4430 return r;
4431
4432 i->main_pid = (pid_t) u;
4433 i->running = u > 0;
4434
4435 return 0;
4436 }
4437
4438 static int map_load_error(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
4439 const char *message, **p = userdata;
4440 int r;
4441
4442 r = sd_bus_message_read(m, "(ss)", NULL, &message);
4443 if (r < 0)
4444 return r;
4445
4446 if (!isempty(message))
4447 *p = message;
4448
4449 return 0;
4450 }
4451
4452 static int map_listen(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
4453 const char *type, *path;
4454 char ***p = userdata;
4455 int r;
4456
4457 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
4458 if (r < 0)
4459 return r;
4460
4461 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) {
4462
4463 r = strv_extend(p, type);
4464 if (r < 0)
4465 return r;
4466
4467 r = strv_extend(p, path);
4468 if (r < 0)
4469 return r;
4470 }
4471 if (r < 0)
4472 return r;
4473
4474 r = sd_bus_message_exit_container(m);
4475 if (r < 0)
4476 return r;
4477
4478 return 0;
4479 }
4480
4481 static int map_conditions(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
4482 UnitStatusInfo *i = userdata;
4483 const char *cond, *param;
4484 int trigger, negate;
4485 int32_t state;
4486 int r;
4487
4488 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
4489 if (r < 0)
4490 return r;
4491
4492 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
4493 _cleanup_(unit_condition_freep) UnitCondition *c = NULL;
4494
4495 c = new0(UnitCondition, 1);
4496 if (!c)
4497 return -ENOMEM;
4498
4499 c->name = strdup(cond);
4500 c->param = strdup(param);
4501 if (!c->name || !c->param)
4502 return -ENOMEM;
4503
4504 c->trigger = trigger;
4505 c->negate = negate;
4506 c->tristate = state;
4507
4508 LIST_PREPEND(conditions, i->conditions, c);
4509 c = NULL;
4510 }
4511 if (r < 0)
4512 return r;
4513
4514 r = sd_bus_message_exit_container(m);
4515 if (r < 0)
4516 return r;
4517
4518 return 0;
4519 }
4520
4521 static int map_asserts(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
4522 UnitStatusInfo *i = userdata;
4523 const char *cond, *param;
4524 int trigger, negate;
4525 int32_t state;
4526 int r;
4527
4528 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
4529 if (r < 0)
4530 return r;
4531
4532 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
4533 if (state < 0 && (!trigger || !i->failed_assert)) {
4534 i->failed_assert = cond;
4535 i->failed_assert_trigger = trigger;
4536 i->failed_assert_negate = negate;
4537 i->failed_assert_parameter = param;
4538 }
4539 }
4540 if (r < 0)
4541 return r;
4542
4543 r = sd_bus_message_exit_container(m);
4544 if (r < 0)
4545 return r;
4546
4547 return 0;
4548 }
4549
4550 static int map_exec(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
4551 _cleanup_free_ ExecStatusInfo *info = NULL;
4552 ExecStatusInfo *last;
4553 UnitStatusInfo *i = userdata;
4554 int r;
4555
4556 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
4557 if (r < 0)
4558 return r;
4559
4560 info = new0(ExecStatusInfo, 1);
4561 if (!info)
4562 return -ENOMEM;
4563
4564 LIST_FIND_TAIL(exec, i->exec, last);
4565
4566 while ((r = exec_status_info_deserialize(m, info)) > 0) {
4567
4568 info->name = strdup(member);
4569 if (!info->name)
4570 return -ENOMEM;
4571
4572 LIST_INSERT_AFTER(exec, i->exec, last, info);
4573 last = info;
4574
4575 info = new0(ExecStatusInfo, 1);
4576 if (!info)
4577 return -ENOMEM;
4578 }
4579 if (r < 0)
4580 return r;
4581
4582 r = sd_bus_message_exit_container(m);
4583 if (r < 0)
4584 return r;
4585
4586 return 0;
4587 }
4588
4589 #define print_prop(name, fmt, ...) \
4590 do { \
4591 if (arg_value) \
4592 printf(fmt "\n", __VA_ARGS__); \
4593 else \
4594 printf("%s=" fmt "\n", name, __VA_ARGS__); \
4595 } while (0)
4596
4597 static int print_property(const char *name, sd_bus_message *m, bool value, bool all) {
4598 char bus_type;
4599 const char *contents;
4600 int r;
4601
4602 assert(name);
4603 assert(m);
4604
4605 /* This is a low-level property printer, see
4606 * print_status_info() for the nicer output */
4607
4608 r = sd_bus_message_peek_type(m, &bus_type, &contents);
4609 if (r < 0)
4610 return r;
4611
4612 switch (bus_type) {
4613
4614 case SD_BUS_TYPE_STRUCT:
4615
4616 if (contents[0] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) {
4617 uint32_t u;
4618
4619 r = sd_bus_message_read(m, "(uo)", &u, NULL);
4620 if (r < 0)
4621 return bus_log_parse_error(r);
4622
4623 if (u > 0)
4624 print_prop(name, "%"PRIu32, u);
4625 else if (all)
4626 print_prop(name, "%s", "");
4627
4628 return 1;
4629
4630 } else if (contents[0] == SD_BUS_TYPE_STRING && streq(name, "Unit")) {
4631 const char *s;
4632
4633 r = sd_bus_message_read(m, "(so)", &s, NULL);
4634 if (r < 0)
4635 return bus_log_parse_error(r);
4636
4637 if (all || !isempty(s))
4638 print_prop(name, "%s", s);
4639
4640 return 1;
4641
4642 } else if (contents[0] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) {
4643 const char *a = NULL, *b = NULL;
4644
4645 r = sd_bus_message_read(m, "(ss)", &a, &b);
4646 if (r < 0)
4647 return bus_log_parse_error(r);
4648
4649 if (all || !isempty(a) || !isempty(b))
4650 print_prop(name, "%s \"%s\"", strempty(a), strempty(b));
4651
4652 return 1;
4653 } else if (streq_ptr(name, "SystemCallFilter")) {
4654 _cleanup_strv_free_ char **l = NULL;
4655 int whitelist;
4656
4657 r = sd_bus_message_enter_container(m, 'r', "bas");
4658 if (r < 0)
4659 return bus_log_parse_error(r);
4660
4661 r = sd_bus_message_read(m, "b", &whitelist);
4662 if (r < 0)
4663 return bus_log_parse_error(r);
4664
4665 r = sd_bus_message_read_strv(m, &l);
4666 if (r < 0)
4667 return bus_log_parse_error(r);
4668
4669 r = sd_bus_message_exit_container(m);
4670 if (r < 0)
4671 return bus_log_parse_error(r);
4672
4673 if (all || whitelist || !strv_isempty(l)) {
4674 bool first = true;
4675 char **i;
4676
4677 if (!value) {
4678 fputs(name, stdout);
4679 fputc('=', stdout);
4680 }
4681
4682 if (!whitelist)
4683 fputc('~', stdout);
4684
4685 STRV_FOREACH(i, l) {
4686 if (first)
4687 first = false;
4688 else
4689 fputc(' ', stdout);
4690
4691 fputs(*i, stdout);
4692 }
4693 fputc('\n', stdout);
4694 }
4695
4696 return 1;
4697 }
4698
4699 break;
4700
4701 case SD_BUS_TYPE_ARRAY:
4702
4703 if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) {
4704 const char *path;
4705 int ignore;
4706
4707 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)");
4708 if (r < 0)
4709 return bus_log_parse_error(r);
4710
4711 while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0)
4712 print_prop(name, "%s (ignore_errors=%s)", path, yes_no(ignore));
4713
4714 if (r < 0)
4715 return bus_log_parse_error(r);
4716
4717 r = sd_bus_message_exit_container(m);
4718 if (r < 0)
4719 return bus_log_parse_error(r);
4720
4721 return 1;
4722
4723 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) {
4724 const char *type, *path;
4725
4726 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
4727 if (r < 0)
4728 return bus_log_parse_error(r);
4729
4730 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
4731 print_prop(name, "%s (%s)", path, type);
4732 if (r < 0)
4733 return bus_log_parse_error(r);
4734
4735 r = sd_bus_message_exit_container(m);
4736 if (r < 0)
4737 return bus_log_parse_error(r);
4738
4739 return 1;
4740
4741 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
4742 const char *type, *path;
4743
4744 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
4745 if (r < 0)
4746 return bus_log_parse_error(r);
4747
4748 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
4749 print_prop(name, "%s (%s)", path, type);
4750 if (r < 0)
4751 return bus_log_parse_error(r);
4752
4753 r = sd_bus_message_exit_container(m);
4754 if (r < 0)
4755 return bus_log_parse_error(r);
4756
4757 return 1;
4758
4759 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "TimersMonotonic")) {
4760 const char *base;
4761 uint64_t v, next_elapse;
4762
4763 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)");
4764 if (r < 0)
4765 return bus_log_parse_error(r);
4766
4767 while ((r = sd_bus_message_read(m, "(stt)", &base, &v, &next_elapse)) > 0) {
4768 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
4769
4770 print_prop(name, "{ %s=%s ; next_elapse=%s }", base,
4771 format_timespan(timespan1, sizeof(timespan1), v, 0),
4772 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
4773 }
4774 if (r < 0)
4775 return bus_log_parse_error(r);
4776
4777 r = sd_bus_message_exit_container(m);
4778 if (r < 0)
4779 return bus_log_parse_error(r);
4780
4781 return 1;
4782
4783 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "TimersCalendar")) {
4784 const char *base, *spec;
4785 uint64_t next_elapse;
4786
4787 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sst)");
4788 if (r < 0)
4789 return bus_log_parse_error(r);
4790
4791 while ((r = sd_bus_message_read(m, "(sst)", &base, &spec, &next_elapse)) > 0) {
4792 char timestamp[FORMAT_TIMESTAMP_MAX];
4793
4794 print_prop(name, "{ %s=%s ; next_elapse=%s }", base, spec,
4795 format_timestamp(timestamp, sizeof(timestamp), next_elapse));
4796 }
4797 if (r < 0)
4798 return bus_log_parse_error(r);
4799
4800 r = sd_bus_message_exit_container(m);
4801 if (r < 0)
4802 return bus_log_parse_error(r);
4803
4804 return 1;
4805
4806 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
4807 ExecStatusInfo info = {};
4808
4809 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
4810 if (r < 0)
4811 return bus_log_parse_error(r);
4812
4813 while ((r = exec_status_info_deserialize(m, &info)) > 0) {
4814 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
4815 _cleanup_free_ char *tt;
4816
4817 tt = strv_join(info.argv, " ");
4818
4819 print_prop(name,
4820 "{ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid="PID_FMT" ; code=%s ; status=%i%s%s }",
4821 strna(info.path),
4822 strna(tt),
4823 yes_no(info.ignore),
4824 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
4825 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
4826 info.pid,
4827 sigchld_code_to_string(info.code),
4828 info.status,
4829 info.code == CLD_EXITED ? "" : "/",
4830 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
4831
4832 free(info.path);
4833 strv_free(info.argv);
4834 zero(info);
4835 }
4836
4837 r = sd_bus_message_exit_container(m);
4838 if (r < 0)
4839 return bus_log_parse_error(r);
4840
4841 return 1;
4842
4843 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) {
4844 const char *path, *rwm;
4845
4846 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
4847 if (r < 0)
4848 return bus_log_parse_error(r);
4849
4850 while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0)
4851 print_prop(name, "%s %s", strna(path), strna(rwm));
4852 if (r < 0)
4853 return bus_log_parse_error(r);
4854
4855 r = sd_bus_message_exit_container(m);
4856 if (r < 0)
4857 return bus_log_parse_error(r);
4858
4859 return 1;
4860
4861 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN &&
4862 STR_IN_SET(name, "IODeviceWeight", "BlockIODeviceWeight")) {
4863 const char *path;
4864 uint64_t weight;
4865
4866 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
4867 if (r < 0)
4868 return bus_log_parse_error(r);
4869
4870 while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0)
4871 print_prop(name, "%s %"PRIu64, strna(path), weight);
4872 if (r < 0)
4873 return bus_log_parse_error(r);
4874
4875 r = sd_bus_message_exit_container(m);
4876 if (r < 0)
4877 return bus_log_parse_error(r);
4878
4879 return 1;
4880
4881 } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN &&
4882 (cgroup_io_limit_type_from_string(name) >= 0 ||
4883 STR_IN_SET(name, "BlockIOReadBandwidth", "BlockIOWriteBandwidth"))) {
4884 const char *path;
4885 uint64_t bandwidth;
4886
4887 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
4888 if (r < 0)
4889 return bus_log_parse_error(r);
4890
4891 while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0)
4892 print_prop(name, "%s %"PRIu64, strna(path), bandwidth);
4893 if (r < 0)
4894 return bus_log_parse_error(r);
4895
4896 r = sd_bus_message_exit_container(m);
4897 if (r < 0)
4898 return bus_log_parse_error(r);
4899
4900 return 1;
4901
4902 } else if (contents[0] == SD_BUS_TYPE_BYTE && streq(name, "StandardInputData")) {
4903 _cleanup_free_ char *h = NULL;
4904 const void *p;
4905 size_t sz;
4906 ssize_t n;
4907
4908 r = sd_bus_message_read_array(m, 'y', &p, &sz);
4909 if (r < 0)
4910 return bus_log_parse_error(r);
4911
4912 n = base64mem(p, sz, &h);
4913 if (n < 0)
4914 return log_oom();
4915
4916 print_prop(name, "%s", h);
4917
4918 return 1;
4919 }
4920
4921 break;
4922 }
4923
4924 return 0;
4925 }
4926
4927 typedef enum SystemctlShowMode{
4928 SYSTEMCTL_SHOW_PROPERTIES,
4929 SYSTEMCTL_SHOW_STATUS,
4930 SYSTEMCTL_SHOW_HELP,
4931 _SYSTEMCTL_SHOW_MODE_MAX,
4932 _SYSTEMCTL_SHOW_MODE_INVALID = -1,
4933 } SystemctlShowMode;
4934
4935 static const char* const systemctl_show_mode_table[_SYSTEMCTL_SHOW_MODE_MAX] = {
4936 [SYSTEMCTL_SHOW_PROPERTIES] = "show",
4937 [SYSTEMCTL_SHOW_STATUS] = "status",
4938 [SYSTEMCTL_SHOW_HELP] = "help",
4939 };
4940
4941 DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(systemctl_show_mode, SystemctlShowMode);
4942
4943 static int show_one(
4944 sd_bus *bus,
4945 const char *path,
4946 const char *unit,
4947 SystemctlShowMode show_mode,
4948 bool *new_line,
4949 bool *ellipsized) {
4950
4951 static const struct bus_properties_map property_map[] = {
4952 { "LoadState", "s", NULL, offsetof(UnitStatusInfo, load_state) },
4953 { "ActiveState", "s", NULL, offsetof(UnitStatusInfo, active_state) },
4954 { "Documentation", "as", NULL, offsetof(UnitStatusInfo, documentation) },
4955 {}
4956 }, status_map[] = {
4957 { "Id", "s", NULL, offsetof(UnitStatusInfo, id) },
4958 { "LoadState", "s", NULL, offsetof(UnitStatusInfo, load_state) },
4959 { "ActiveState", "s", NULL, offsetof(UnitStatusInfo, active_state) },
4960 { "SubState", "s", NULL, offsetof(UnitStatusInfo, sub_state) },
4961 { "UnitFileState", "s", NULL, offsetof(UnitStatusInfo, unit_file_state) },
4962 { "UnitFilePreset", "s", NULL, offsetof(UnitStatusInfo, unit_file_preset) },
4963 { "Description", "s", NULL, offsetof(UnitStatusInfo, description) },
4964 { "Following", "s", NULL, offsetof(UnitStatusInfo, following) },
4965 { "Documentation", "as", NULL, offsetof(UnitStatusInfo, documentation) },
4966 { "FragmentPath", "s", NULL, offsetof(UnitStatusInfo, fragment_path) },
4967 { "SourcePath", "s", NULL, offsetof(UnitStatusInfo, source_path) },
4968 { "ControlGroup", "s", NULL, offsetof(UnitStatusInfo, control_group) },
4969 { "DropInPaths", "as", NULL, offsetof(UnitStatusInfo, dropin_paths) },
4970 { "LoadError", "(ss)", map_load_error, offsetof(UnitStatusInfo, load_error) },
4971 { "Result", "s", NULL, offsetof(UnitStatusInfo, result) },
4972 { "InactiveExitTimestamp", "t", NULL, offsetof(UnitStatusInfo, inactive_exit_timestamp) },
4973 { "InactiveExitTimestampMonotonic", "t", NULL, offsetof(UnitStatusInfo, inactive_exit_timestamp_monotonic) },
4974 { "ActiveEnterTimestamp", "t", NULL, offsetof(UnitStatusInfo, active_enter_timestamp) },
4975 { "ActiveExitTimestamp", "t", NULL, offsetof(UnitStatusInfo, active_exit_timestamp) },
4976 { "InactiveEnterTimestamp", "t", NULL, offsetof(UnitStatusInfo, inactive_enter_timestamp) },
4977 { "NeedDaemonReload", "b", NULL, offsetof(UnitStatusInfo, need_daemon_reload) },
4978 { "Transient", "b", NULL, offsetof(UnitStatusInfo, transient) },
4979 { "ExecMainPID", "u", NULL, offsetof(UnitStatusInfo, main_pid) },
4980 { "MainPID", "u", map_main_pid, 0 },
4981 { "ControlPID", "u", NULL, offsetof(UnitStatusInfo, control_pid) },
4982 { "StatusText", "s", NULL, offsetof(UnitStatusInfo, status_text) },
4983 { "PIDFile", "s", NULL, offsetof(UnitStatusInfo, pid_file) },
4984 { "StatusErrno", "i", NULL, offsetof(UnitStatusInfo, status_errno) },
4985 { "ExecMainStartTimestamp", "t", NULL, offsetof(UnitStatusInfo, start_timestamp) },
4986 { "ExecMainExitTimestamp", "t", NULL, offsetof(UnitStatusInfo, exit_timestamp) },
4987 { "ExecMainCode", "i", NULL, offsetof(UnitStatusInfo, exit_code) },
4988 { "ExecMainStatus", "i", NULL, offsetof(UnitStatusInfo, exit_status) },
4989 { "ConditionTimestamp", "t", NULL, offsetof(UnitStatusInfo, condition_timestamp) },
4990 { "ConditionResult", "b", NULL, offsetof(UnitStatusInfo, condition_result) },
4991 { "Conditions", "a(sbbsi)", map_conditions, 0 },
4992 { "AssertTimestamp", "t", NULL, offsetof(UnitStatusInfo, assert_timestamp) },
4993 { "AssertResult", "b", NULL, offsetof(UnitStatusInfo, assert_result) },
4994 { "Asserts", "a(sbbsi)", map_asserts, 0 },
4995 { "NextElapseUSecRealtime", "t", NULL, offsetof(UnitStatusInfo, next_elapse_real) },
4996 { "NextElapseUSecMonotonic", "t", NULL, offsetof(UnitStatusInfo, next_elapse_monotonic) },
4997 { "NAccepted", "u", NULL, offsetof(UnitStatusInfo, n_accepted) },
4998 { "NConnections", "u", NULL, offsetof(UnitStatusInfo, n_connections) },
4999 { "NRefused", "u", NULL, offsetof(UnitStatusInfo, n_refused) },
5000 { "Accept", "b", NULL, offsetof(UnitStatusInfo, accept) },
5001 { "Listen", "a(ss)", map_listen, offsetof(UnitStatusInfo, listen) },
5002 { "SysFSPath", "s", NULL, offsetof(UnitStatusInfo, sysfs_path) },
5003 { "Where", "s", NULL, offsetof(UnitStatusInfo, where) },
5004 { "What", "s", NULL, offsetof(UnitStatusInfo, what) },
5005 { "MemoryCurrent", "t", NULL, offsetof(UnitStatusInfo, memory_current) },
5006 { "MemoryMin", "t", NULL, offsetof(UnitStatusInfo, memory_min) },
5007 { "MemoryLow", "t", NULL, offsetof(UnitStatusInfo, memory_low) },
5008 { "MemoryHigh", "t", NULL, offsetof(UnitStatusInfo, memory_high) },
5009 { "MemoryMax", "t", NULL, offsetof(UnitStatusInfo, memory_max) },
5010 { "MemorySwapMax", "t", NULL, offsetof(UnitStatusInfo, memory_swap_max) },
5011 { "MemoryLimit", "t", NULL, offsetof(UnitStatusInfo, memory_limit) },
5012 { "CPUUsageNSec", "t", NULL, offsetof(UnitStatusInfo, cpu_usage_nsec) },
5013 { "TasksCurrent", "t", NULL, offsetof(UnitStatusInfo, tasks_current) },
5014 { "TasksMax", "t", NULL, offsetof(UnitStatusInfo, tasks_max) },
5015 { "IPIngressBytes", "t", NULL, offsetof(UnitStatusInfo, ip_ingress_bytes) },
5016 { "IPEgressBytes", "t", NULL, offsetof(UnitStatusInfo, ip_egress_bytes) },
5017 { "ExecStartPre", "a(sasbttttuii)", map_exec, 0 },
5018 { "ExecStart", "a(sasbttttuii)", map_exec, 0 },
5019 { "ExecStartPost", "a(sasbttttuii)", map_exec, 0 },
5020 { "ExecReload", "a(sasbttttuii)", map_exec, 0 },
5021 { "ExecStopPre", "a(sasbttttuii)", map_exec, 0 },
5022 { "ExecStop", "a(sasbttttuii)", map_exec, 0 },
5023 { "ExecStopPost", "a(sasbttttuii)", map_exec, 0 },
5024 {}
5025 };
5026
5027 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5028 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5029 _cleanup_set_free_ Set *found_properties = NULL;
5030 _cleanup_(unit_status_info_free) UnitStatusInfo info = {
5031 .memory_current = (uint64_t) -1,
5032 .memory_high = CGROUP_LIMIT_MAX,
5033 .memory_max = CGROUP_LIMIT_MAX,
5034 .memory_swap_max = CGROUP_LIMIT_MAX,
5035 .memory_limit = (uint64_t) -1,
5036 .cpu_usage_nsec = (uint64_t) -1,
5037 .tasks_current = (uint64_t) -1,
5038 .tasks_max = (uint64_t) -1,
5039 .ip_ingress_bytes = (uint64_t) -1,
5040 .ip_egress_bytes = (uint64_t) -1,
5041 };
5042 char **pp;
5043 int r;
5044
5045 assert(path);
5046 assert(new_line);
5047
5048 log_debug("Showing one %s", path);
5049
5050 r = bus_map_all_properties(
5051 bus,
5052 "org.freedesktop.systemd1",
5053 path,
5054 show_mode == SYSTEMCTL_SHOW_STATUS ? status_map : property_map,
5055 BUS_MAP_BOOLEAN_AS_BOOL,
5056 &error,
5057 &reply,
5058 &info);
5059 if (r < 0)
5060 return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r));
5061
5062 if (unit && streq_ptr(info.load_state, "not-found") && streq_ptr(info.active_state, "inactive")) {
5063 log_full(show_mode == SYSTEMCTL_SHOW_STATUS ? LOG_ERR : LOG_DEBUG,
5064 "Unit %s could not be found.", unit);
5065
5066 if (show_mode == SYSTEMCTL_SHOW_STATUS)
5067 return EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN;
5068 else if (show_mode == SYSTEMCTL_SHOW_HELP)
5069 return -ENOENT;
5070 }
5071
5072 if (*new_line)
5073 printf("\n");
5074
5075 *new_line = true;
5076
5077 if (show_mode == SYSTEMCTL_SHOW_STATUS) {
5078 print_status_info(bus, &info, ellipsized);
5079
5080 if (info.active_state && !STR_IN_SET(info.active_state, "active", "reloading"))
5081 return EXIT_PROGRAM_NOT_RUNNING;
5082
5083 return EXIT_PROGRAM_RUNNING_OR_SERVICE_OK;
5084
5085 } else if (show_mode == SYSTEMCTL_SHOW_HELP) {
5086 show_unit_help(&info);
5087 return 0;
5088 }
5089
5090 r = sd_bus_message_rewind(reply, true);
5091 if (r < 0)
5092 return log_error_errno(r, "Failed to rewind: %s", bus_error_message(&error, r));
5093
5094 r = bus_message_print_all_properties(reply, print_property, arg_properties, arg_value, arg_all, &found_properties);
5095 if (r < 0)
5096 return bus_log_parse_error(r);
5097
5098 STRV_FOREACH(pp, arg_properties)
5099 if (!set_contains(found_properties, *pp))
5100 log_debug("Property %s does not exist.", *pp);
5101
5102 return 0;
5103 }
5104
5105 static int get_unit_dbus_path_by_pid(
5106 sd_bus *bus,
5107 uint32_t pid,
5108 char **unit) {
5109
5110 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5111 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5112 char *u;
5113 int r;
5114
5115 r = sd_bus_call_method(
5116 bus,
5117 "org.freedesktop.systemd1",
5118 "/org/freedesktop/systemd1",
5119 "org.freedesktop.systemd1.Manager",
5120 "GetUnitByPID",
5121 &error,
5122 &reply,
5123 "u", pid);
5124 if (r < 0)
5125 return log_error_errno(r, "Failed to get unit for PID %"PRIu32": %s", pid, bus_error_message(&error, r));
5126
5127 r = sd_bus_message_read(reply, "o", &u);
5128 if (r < 0)
5129 return bus_log_parse_error(r);
5130
5131 u = strdup(u);
5132 if (!u)
5133 return log_oom();
5134
5135 *unit = u;
5136 return 0;
5137 }
5138
5139 static int show_all(
5140 sd_bus *bus,
5141 bool *new_line,
5142 bool *ellipsized) {
5143
5144 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5145 _cleanup_free_ UnitInfo *unit_infos = NULL;
5146 const UnitInfo *u;
5147 unsigned c;
5148 int r, ret = 0;
5149
5150 r = get_unit_list(bus, NULL, NULL, &unit_infos, 0, &reply);
5151 if (r < 0)
5152 return r;
5153
5154 (void) pager_open(arg_no_pager, false);
5155
5156 c = (unsigned) r;
5157
5158 qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
5159
5160 for (u = unit_infos; u < unit_infos + c; u++) {
5161 _cleanup_free_ char *p = NULL;
5162
5163 p = unit_dbus_path_from_name(u->id);
5164 if (!p)
5165 return log_oom();
5166
5167 r = show_one(bus, p, u->id, SYSTEMCTL_SHOW_STATUS, new_line, ellipsized);
5168 if (r < 0)
5169 return r;
5170 else if (r > 0 && ret == 0)
5171 ret = r;
5172 }
5173
5174 return ret;
5175 }
5176
5177 static int show_system_status(sd_bus *bus) {
5178 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], since2[FORMAT_TIMESTAMP_MAX];
5179 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5180 _cleanup_(machine_info_clear) struct machine_info mi = {};
5181 _cleanup_free_ char *hn = NULL;
5182 const char *on, *off;
5183 int r;
5184
5185 hn = gethostname_malloc();
5186 if (!hn)
5187 return log_oom();
5188
5189 r = bus_map_all_properties(
5190 bus,
5191 "org.freedesktop.systemd1",
5192 "/org/freedesktop/systemd1",
5193 machine_info_property_map,
5194 BUS_MAP_STRDUP,
5195 &error,
5196 NULL,
5197 &mi);
5198 if (r < 0)
5199 return log_error_errno(r, "Failed to read server status: %s", bus_error_message(&error, r));
5200
5201 if (streq_ptr(mi.state, "degraded")) {
5202 on = ansi_highlight_red();
5203 off = ansi_normal();
5204 } else if (streq_ptr(mi.state, "running")) {
5205 on = ansi_highlight_green();
5206 off = ansi_normal();
5207 } else {
5208 on = ansi_highlight_yellow();
5209 off = ansi_normal();
5210 }
5211
5212 printf("%s%s%s %s\n", on, special_glyph(BLACK_CIRCLE), off, arg_host ? arg_host : hn);
5213
5214 printf(" State: %s%s%s\n",
5215 on, strna(mi.state), off);
5216
5217 printf(" Jobs: %" PRIu32 " queued\n", mi.n_jobs);
5218 printf(" Failed: %" PRIu32 " units\n", mi.n_failed_units);
5219
5220 printf(" Since: %s; %s\n",
5221 format_timestamp(since2, sizeof(since2), mi.timestamp),
5222 format_timestamp_relative(since1, sizeof(since1), mi.timestamp));
5223
5224 printf(" CGroup: %s\n", mi.control_group ?: "/");
5225 if (IN_SET(arg_transport,
5226 BUS_TRANSPORT_LOCAL,
5227 BUS_TRANSPORT_MACHINE)) {
5228 static const char prefix[] = " ";
5229 unsigned c;
5230
5231 c = columns();
5232 if (c > sizeof(prefix) - 1)
5233 c -= sizeof(prefix) - 1;
5234 else
5235 c = 0;
5236
5237 show_cgroup(SYSTEMD_CGROUP_CONTROLLER, strempty(mi.control_group), prefix, c, get_output_flags());
5238 }
5239
5240 return 0;
5241 }
5242
5243 static int show(int argc, char *argv[], void *userdata) {
5244 bool new_line = false, ellipsized = false;
5245 SystemctlShowMode show_mode;
5246 int r, ret = 0;
5247 sd_bus *bus;
5248
5249 assert(argv);
5250
5251 show_mode = systemctl_show_mode_from_string(argv[0]);
5252 if (show_mode < 0) {
5253 log_error("Invalid argument.");
5254 return -EINVAL;
5255 }
5256
5257 if (show_mode == SYSTEMCTL_SHOW_HELP && argc <= 1) {
5258 log_error("This command expects one or more unit names. Did you mean --help?");
5259 return -EINVAL;
5260 }
5261
5262 r = acquire_bus(BUS_MANAGER, &bus);
5263 if (r < 0)
5264 return r;
5265
5266 (void) pager_open(arg_no_pager, false);
5267
5268 if (show_mode == SYSTEMCTL_SHOW_STATUS)
5269 /* Increase max number of open files to 16K if we can, we
5270 * might needs this when browsing journal files, which might
5271 * be split up into many files. */
5272 setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384));
5273
5274 /* If no argument is specified inspect the manager itself */
5275 if (show_mode == SYSTEMCTL_SHOW_PROPERTIES && argc <= 1)
5276 return show_one(bus, "/org/freedesktop/systemd1", NULL, show_mode, &new_line, &ellipsized);
5277
5278 if (show_mode == SYSTEMCTL_SHOW_STATUS && argc <= 1) {
5279
5280 show_system_status(bus);
5281 new_line = true;
5282
5283 if (arg_all)
5284 ret = show_all(bus, &new_line, &ellipsized);
5285 } else {
5286 _cleanup_free_ char **patterns = NULL;
5287 char **name;
5288
5289 STRV_FOREACH(name, strv_skip(argv, 1)) {
5290 _cleanup_free_ char *path = NULL, *unit = NULL;
5291 uint32_t id;
5292
5293 if (safe_atou32(*name, &id) < 0) {
5294 if (strv_push(&patterns, *name) < 0)
5295 return log_oom();
5296
5297 continue;
5298 } else if (show_mode == SYSTEMCTL_SHOW_PROPERTIES) {
5299 /* Interpret as job id */
5300 if (asprintf(&path, "/org/freedesktop/systemd1/job/%u", id) < 0)
5301 return log_oom();
5302
5303 } else {
5304 /* Interpret as PID */
5305 r = get_unit_dbus_path_by_pid(bus, id, &path);
5306 if (r < 0) {
5307 ret = r;
5308 continue;
5309 }
5310
5311 r = unit_name_from_dbus_path(path, &unit);
5312 if (r < 0)
5313 return log_oom();
5314 }
5315
5316 r = show_one(bus, path, unit, show_mode, &new_line, &ellipsized);
5317 if (r < 0)
5318 return r;
5319 else if (r > 0 && ret == 0)
5320 ret = r;
5321 }
5322
5323 if (!strv_isempty(patterns)) {
5324 _cleanup_strv_free_ char **names = NULL;
5325
5326 r = expand_names(bus, patterns, NULL, &names);
5327 if (r < 0)
5328 return log_error_errno(r, "Failed to expand names: %m");
5329
5330 STRV_FOREACH(name, names) {
5331 _cleanup_free_ char *path;
5332
5333 path = unit_dbus_path_from_name(*name);
5334 if (!path)
5335 return log_oom();
5336
5337 r = show_one(bus, path, *name, show_mode, &new_line, &ellipsized);
5338 if (r < 0)
5339 return r;
5340 if (r > 0 && ret == 0)
5341 ret = r;
5342 }
5343 }
5344 }
5345
5346 if (ellipsized && !arg_quiet)
5347 printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
5348
5349 return ret;
5350 }
5351
5352 static int cat(int argc, char *argv[], void *userdata) {
5353 _cleanup_(lookup_paths_free) LookupPaths lp = {};
5354 _cleanup_strv_free_ char **names = NULL;
5355 char **name;
5356 sd_bus *bus;
5357 bool first = true;
5358 int r;
5359
5360 if (arg_transport != BUS_TRANSPORT_LOCAL) {
5361 log_error("Cannot remotely cat units.");
5362 return -EINVAL;
5363 }
5364
5365 r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
5366 if (r < 0)
5367 return log_error_errno(r, "Failed to determine unit paths: %m");
5368
5369 r = acquire_bus(BUS_MANAGER, &bus);
5370 if (r < 0)
5371 return r;
5372
5373 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
5374 if (r < 0)
5375 return log_error_errno(r, "Failed to expand names: %m");
5376
5377 (void) pager_open(arg_no_pager, false);
5378
5379 STRV_FOREACH(name, names) {
5380 _cleanup_free_ char *fragment_path = NULL;
5381 _cleanup_strv_free_ char **dropin_paths = NULL;
5382
5383 r = unit_find_paths(bus, *name, &lp, &fragment_path, &dropin_paths);
5384 if (r == -ERFKILL) {
5385 printf("%s# unit %s is masked%s\n",
5386 ansi_highlight_magenta(),
5387 *name,
5388 ansi_normal());
5389 continue;
5390 }
5391 if (r < 0)
5392 return r;
5393 else if (r == 0)
5394 return -ENOENT;
5395
5396 if (first)
5397 first = false;
5398 else
5399 puts("");
5400
5401 if (need_daemon_reload(bus, *name) > 0) /* ignore errors (<0), this is informational output */
5402 fprintf(stderr,
5403 "%s# Warning: %s changed on disk, the version systemd has loaded is outdated.\n"
5404 "%s# This output shows the current version of the unit's original fragment and drop-in files.\n"
5405 "%s# If fragments or drop-ins were added or removed, they are not properly reflected in this output.\n"
5406 "%s# Run 'systemctl%s daemon-reload' to reload units.%s\n",
5407 ansi_highlight_red(),
5408 *name,
5409 ansi_highlight_red(),
5410 ansi_highlight_red(),
5411 ansi_highlight_red(),
5412 arg_scope == UNIT_FILE_SYSTEM ? "" : " --user",
5413 ansi_normal());
5414
5415 r = cat_files(fragment_path, dropin_paths, 0);
5416 if (r < 0)
5417 return r;
5418 }
5419
5420 return 0;
5421 }
5422
5423 static int set_property(int argc, char *argv[], void *userdata) {
5424 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5425 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5426 _cleanup_free_ char *n = NULL;
5427 UnitType t;
5428 sd_bus *bus;
5429 int r;
5430
5431 r = acquire_bus(BUS_MANAGER, &bus);
5432 if (r < 0)
5433 return r;
5434
5435 polkit_agent_open_maybe();
5436
5437 r = sd_bus_message_new_method_call(
5438 bus,
5439 &m,
5440 "org.freedesktop.systemd1",
5441 "/org/freedesktop/systemd1",
5442 "org.freedesktop.systemd1.Manager",
5443 "SetUnitProperties");
5444 if (r < 0)
5445 return bus_log_create_error(r);
5446
5447 r = unit_name_mangle(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, &n);
5448 if (r < 0)
5449 return log_error_errno(r, "Failed to mangle unit name: %m");
5450
5451 t = unit_name_to_type(n);
5452 if (t < 0) {
5453 log_error("Invalid unit type: %s", n);
5454 return -EINVAL;
5455 }
5456
5457 r = sd_bus_message_append(m, "sb", n, arg_runtime);
5458 if (r < 0)
5459 return bus_log_create_error(r);
5460
5461 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
5462 if (r < 0)
5463 return bus_log_create_error(r);
5464
5465 r = bus_append_unit_property_assignment_many(m, t, strv_skip(argv, 2));
5466 if (r < 0)
5467 return r;
5468
5469 r = sd_bus_message_close_container(m);
5470 if (r < 0)
5471 return bus_log_create_error(r);
5472
5473 r = sd_bus_call(bus, m, 0, &error, NULL);
5474 if (r < 0)
5475 return log_error_errno(r, "Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
5476
5477 return 0;
5478 }
5479
5480 static int daemon_reload(int argc, char *argv[], void *userdata) {
5481 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5482 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5483 const char *method;
5484 sd_bus *bus;
5485 int r;
5486
5487 r = acquire_bus(BUS_MANAGER, &bus);
5488 if (r < 0)
5489 return r;
5490
5491 polkit_agent_open_maybe();
5492
5493 switch (arg_action) {
5494
5495 case ACTION_RELOAD:
5496 method = "Reload";
5497 break;
5498
5499 case ACTION_REEXEC:
5500 method = "Reexecute";
5501 break;
5502
5503 case ACTION_SYSTEMCTL:
5504 method = streq(argv[0], "daemon-reexec") ? "Reexecute" :
5505 /* "daemon-reload" */ "Reload";
5506 break;
5507
5508 default:
5509 assert_not_reached("Unexpected action");
5510 }
5511
5512 r = sd_bus_message_new_method_call(
5513 bus,
5514 &m,
5515 "org.freedesktop.systemd1",
5516 "/org/freedesktop/systemd1",
5517 "org.freedesktop.systemd1.Manager",
5518 method);
5519 if (r < 0)
5520 return bus_log_create_error(r);
5521
5522 /* Note we use an extra-long timeout here. This is because a reload or reexec means generators are rerun which
5523 * are timed out after DEFAULT_TIMEOUT_USEC. Let's use twice that time here, so that the generators can have
5524 * their timeout, and for everything else there's the same time budget in place. */
5525
5526 r = sd_bus_call(bus, m, DEFAULT_TIMEOUT_USEC * 2, &error, NULL);
5527
5528 /* On reexecution, we expect a disconnect, not a reply */
5529 if (IN_SET(r, -ETIMEDOUT, -ECONNRESET) && streq(method, "Reexecute"))
5530 r = 0;
5531
5532 if (r < 0 && arg_action == ACTION_SYSTEMCTL)
5533 return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r));
5534
5535 /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the
5536 * old ways of doing things, hence don't log any error in that case here. */
5537
5538 return r < 0 ? r : 0;
5539 }
5540
5541 static int trivial_method(int argc, char *argv[], void *userdata) {
5542 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5543 const char *method;
5544 sd_bus *bus;
5545 int r;
5546
5547 if (arg_dry_run)
5548 return 0;
5549
5550 r = acquire_bus(BUS_MANAGER, &bus);
5551 if (r < 0)
5552 return r;
5553
5554 polkit_agent_open_maybe();
5555
5556 method =
5557 streq(argv[0], "clear-jobs") ||
5558 streq(argv[0], "cancel") ? "ClearJobs" :
5559 streq(argv[0], "reset-failed") ? "ResetFailed" :
5560 streq(argv[0], "halt") ? "Halt" :
5561 streq(argv[0], "reboot") ? "Reboot" :
5562 streq(argv[0], "kexec") ? "KExec" :
5563 streq(argv[0], "exit") ? "Exit" :
5564 /* poweroff */ "PowerOff";
5565
5566 r = sd_bus_call_method(
5567 bus,
5568 "org.freedesktop.systemd1",
5569 "/org/freedesktop/systemd1",
5570 "org.freedesktop.systemd1.Manager",
5571 method,
5572 &error,
5573 NULL,
5574 NULL);
5575 if (r < 0 && arg_action == ACTION_SYSTEMCTL)
5576 return log_error_errno(r, "Failed to execute operation: %s", bus_error_message(&error, r));
5577
5578 /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the
5579 * old ways of doing things, hence don't log any error in that case here. */
5580
5581 return r < 0 ? r : 0;
5582 }
5583
5584 static int reset_failed(int argc, char *argv[], void *userdata) {
5585 _cleanup_strv_free_ char **names = NULL;
5586 sd_bus *bus;
5587 char **name;
5588 int r, q;
5589
5590 if (argc <= 1)
5591 return trivial_method(argc, argv, userdata);
5592
5593 r = acquire_bus(BUS_MANAGER, &bus);
5594 if (r < 0)
5595 return r;
5596
5597 polkit_agent_open_maybe();
5598
5599 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
5600 if (r < 0)
5601 return log_error_errno(r, "Failed to expand names: %m");
5602
5603 STRV_FOREACH(name, names) {
5604 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5605
5606 q = sd_bus_call_method(
5607 bus,
5608 "org.freedesktop.systemd1",
5609 "/org/freedesktop/systemd1",
5610 "org.freedesktop.systemd1.Manager",
5611 "ResetFailedUnit",
5612 &error,
5613 NULL,
5614 "s", *name);
5615 if (q < 0) {
5616 log_error_errno(q, "Failed to reset failed state of unit %s: %s", *name, bus_error_message(&error, q));
5617 if (r == 0)
5618 r = q;
5619 }
5620 }
5621
5622 return r;
5623 }
5624
5625 static int print_variable(const char *s) {
5626 const char *sep;
5627 _cleanup_free_ char *esc = NULL;
5628
5629 sep = strchr(s, '=');
5630 if (!sep) {
5631 log_error("Invalid environment block");
5632 return -EUCLEAN;
5633 }
5634
5635 esc = shell_maybe_quote(sep + 1, ESCAPE_POSIX);
5636 if (!esc)
5637 return log_oom();
5638
5639 printf("%.*s=%s\n", (int)(sep-s), s, esc);
5640 return 0;
5641 }
5642
5643 static int show_environment(int argc, char *argv[], void *userdata) {
5644 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5645 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5646 const char *text;
5647 sd_bus *bus;
5648 int r;
5649
5650 r = acquire_bus(BUS_MANAGER, &bus);
5651 if (r < 0)
5652 return r;
5653
5654 (void) pager_open(arg_no_pager, false);
5655
5656 r = sd_bus_get_property(
5657 bus,
5658 "org.freedesktop.systemd1",
5659 "/org/freedesktop/systemd1",
5660 "org.freedesktop.systemd1.Manager",
5661 "Environment",
5662 &error,
5663 &reply,
5664 "as");
5665 if (r < 0)
5666 return log_error_errno(r, "Failed to get environment: %s", bus_error_message(&error, r));
5667
5668 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
5669 if (r < 0)
5670 return bus_log_parse_error(r);
5671
5672 while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0) {
5673 r = print_variable(text);
5674 if (r < 0)
5675 return r;
5676 }
5677 if (r < 0)
5678 return bus_log_parse_error(r);
5679
5680 r = sd_bus_message_exit_container(reply);
5681 if (r < 0)
5682 return bus_log_parse_error(r);
5683
5684 return 0;
5685 }
5686
5687 static int switch_root(int argc, char *argv[], void *userdata) {
5688 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5689 _cleanup_free_ char *cmdline_init = NULL;
5690 const char *root, *init;
5691 sd_bus *bus;
5692 int r;
5693
5694 if (arg_transport != BUS_TRANSPORT_LOCAL) {
5695 log_error("Cannot switch root remotely.");
5696 return -EINVAL;
5697 }
5698
5699 if (argc < 2 || argc > 3) {
5700 log_error("Wrong number of arguments.");
5701 return -EINVAL;
5702 }
5703
5704 root = argv[1];
5705
5706 if (argc >= 3)
5707 init = argv[2];
5708 else {
5709 r = parse_env_file(NULL, "/proc/cmdline", WHITESPACE,
5710 "init", &cmdline_init,
5711 NULL);
5712 if (r < 0)
5713 log_debug_errno(r, "Failed to parse /proc/cmdline: %m");
5714
5715 init = cmdline_init;
5716 }
5717
5718 init = empty_to_null(init);
5719 if (init) {
5720 const char *root_systemd_path = NULL, *root_init_path = NULL;
5721
5722 root_systemd_path = strjoina(root, "/" SYSTEMD_BINARY_PATH);
5723 root_init_path = strjoina(root, "/", init);
5724
5725 /* If the passed init is actually the same as the
5726 * systemd binary, then let's suppress it. */
5727 if (files_same(root_init_path, root_systemd_path, 0) > 0)
5728 init = NULL;
5729 }
5730
5731 /* Instruct PID1 to exclude us from its killing spree applied during
5732 * the transition. Otherwise we would exit with a failure status even
5733 * though the switch to the new root has succeed. */
5734 argv_cmdline[0] = '@';
5735
5736 r = acquire_bus(BUS_MANAGER, &bus);
5737 if (r < 0)
5738 return r;
5739
5740 /* If we are slow to exit after the root switch, the new systemd instance
5741 * will send us a signal to terminate. Just ignore it and exit normally.
5742 * This way the unit does not end up as failed.
5743 */
5744 r = ignore_signals(SIGTERM, -1);
5745 if (r < 0)
5746 log_warning_errno(r, "Failed to change disposition of SIGTERM to ignore: %m");
5747
5748 log_debug("Switching root - root: %s; init: %s", root, strna(init));
5749
5750 r = sd_bus_call_method(
5751 bus,
5752 "org.freedesktop.systemd1",
5753 "/org/freedesktop/systemd1",
5754 "org.freedesktop.systemd1.Manager",
5755 "SwitchRoot",
5756 &error,
5757 NULL,
5758 "ss", root, init);
5759 if (r < 0) {
5760 (void) default_signals(SIGTERM, -1);
5761
5762 return log_error_errno(r, "Failed to switch root: %s", bus_error_message(&error, r));
5763 }
5764
5765 return 0;
5766 }
5767
5768 static int set_environment(int argc, char *argv[], void *userdata) {
5769 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5770 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5771 const char *method;
5772 sd_bus *bus;
5773 int r;
5774
5775 assert(argc > 1);
5776 assert(argv);
5777
5778 r = acquire_bus(BUS_MANAGER, &bus);
5779 if (r < 0)
5780 return r;
5781
5782 polkit_agent_open_maybe();
5783
5784 method = streq(argv[0], "set-environment")
5785 ? "SetEnvironment"
5786 : "UnsetEnvironment";
5787
5788 r = sd_bus_message_new_method_call(
5789 bus,
5790 &m,
5791 "org.freedesktop.systemd1",
5792 "/org/freedesktop/systemd1",
5793 "org.freedesktop.systemd1.Manager",
5794 method);
5795 if (r < 0)
5796 return bus_log_create_error(r);
5797
5798 r = sd_bus_message_append_strv(m, strv_skip(argv, 1));
5799 if (r < 0)
5800 return bus_log_create_error(r);
5801
5802 r = sd_bus_call(bus, m, 0, &error, NULL);
5803 if (r < 0)
5804 return log_error_errno(r, "Failed to set environment: %s", bus_error_message(&error, r));
5805
5806 return 0;
5807 }
5808
5809 static int import_environment(int argc, char *argv[], void *userdata) {
5810 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5811 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5812 sd_bus *bus;
5813 int r;
5814
5815 r = acquire_bus(BUS_MANAGER, &bus);
5816 if (r < 0)
5817 return r;
5818
5819 polkit_agent_open_maybe();
5820
5821 r = sd_bus_message_new_method_call(
5822 bus,
5823 &m,
5824 "org.freedesktop.systemd1",
5825 "/org/freedesktop/systemd1",
5826 "org.freedesktop.systemd1.Manager",
5827 "SetEnvironment");
5828 if (r < 0)
5829 return bus_log_create_error(r);
5830
5831 if (argc < 2)
5832 r = sd_bus_message_append_strv(m, environ);
5833 else {
5834 char **a, **b;
5835
5836 r = sd_bus_message_open_container(m, 'a', "s");
5837 if (r < 0)
5838 return bus_log_create_error(r);
5839
5840 STRV_FOREACH(a, strv_skip(argv, 1)) {
5841
5842 if (!env_name_is_valid(*a)) {
5843 log_error("Not a valid environment variable name: %s", *a);
5844 return -EINVAL;
5845 }
5846
5847 STRV_FOREACH(b, environ) {
5848 const char *eq;
5849
5850 eq = startswith(*b, *a);
5851 if (eq && *eq == '=') {
5852
5853 r = sd_bus_message_append(m, "s", *b);
5854 if (r < 0)
5855 return bus_log_create_error(r);
5856
5857 break;
5858 }
5859 }
5860 }
5861
5862 r = sd_bus_message_close_container(m);
5863 }
5864 if (r < 0)
5865 return bus_log_create_error(r);
5866
5867 r = sd_bus_call(bus, m, 0, &error, NULL);
5868 if (r < 0)
5869 return log_error_errno(r, "Failed to import environment: %s", bus_error_message(&error, r));
5870
5871 return 0;
5872 }
5873
5874 static int enable_sysv_units(const char *verb, char **args) {
5875 int r = 0;
5876
5877 #if HAVE_SYSV_COMPAT
5878 _cleanup_(lookup_paths_free) LookupPaths paths = {};
5879 unsigned f = 0;
5880
5881 /* Processes all SysV units, and reshuffles the array so that afterwards only the native units remain */
5882
5883 if (arg_scope != UNIT_FILE_SYSTEM)
5884 return 0;
5885
5886 if (getenv_bool("SYSTEMCTL_SKIP_SYSV") > 0)
5887 return 0;
5888
5889 if (!STR_IN_SET(verb,
5890 "enable",
5891 "disable",
5892 "is-enabled"))
5893 return 0;
5894
5895 r = lookup_paths_init(&paths, arg_scope, LOOKUP_PATHS_EXCLUDE_GENERATED, arg_root);
5896 if (r < 0)
5897 return r;
5898
5899 r = 0;
5900 while (args[f]) {
5901
5902 const char *argv[] = {
5903 ROOTLIBEXECDIR "/systemd-sysv-install",
5904 NULL,
5905 NULL,
5906 NULL,
5907 NULL,
5908 };
5909
5910 _cleanup_free_ char *p = NULL, *q = NULL, *l = NULL;
5911 bool found_native = false, found_sysv;
5912 const char *name;
5913 unsigned c = 1;
5914 pid_t pid;
5915 int j;
5916
5917 name = args[f++];
5918
5919 if (!endswith(name, ".service"))
5920 continue;
5921
5922 if (path_is_absolute(name))
5923 continue;
5924
5925 j = unit_file_exists(arg_scope, &paths, name);
5926 if (j < 0 && !IN_SET(j, -ELOOP, -ERFKILL, -EADDRNOTAVAIL))
5927 return log_error_errno(j, "Failed to lookup unit file state: %m");
5928 found_native = j != 0;
5929
5930 /* If we have both a native unit and a SysV script, enable/disable them both (below); for is-enabled,
5931 * prefer the native unit */
5932 if (found_native && streq(verb, "is-enabled"))
5933 continue;
5934
5935 p = path_join(arg_root, SYSTEM_SYSVINIT_PATH, name);
5936 if (!p)
5937 return log_oom();
5938
5939 p[strlen(p) - STRLEN(".service")] = 0;
5940 found_sysv = access(p, F_OK) >= 0;
5941 if (!found_sysv)
5942 continue;
5943
5944 if (!arg_quiet) {
5945 if (found_native)
5946 log_info("Synchronizing state of %s with SysV service script with %s.", name, argv[0]);
5947 else
5948 log_info("%s is not a native service, redirecting to systemd-sysv-install.", name);
5949 }
5950
5951 if (!isempty(arg_root))
5952 argv[c++] = q = strappend("--root=", arg_root);
5953
5954 argv[c++] = verb;
5955 argv[c++] = basename(p);
5956 argv[c] = NULL;
5957
5958 l = strv_join((char**)argv, " ");
5959 if (!l)
5960 return log_oom();
5961
5962 if (!arg_quiet)
5963 log_info("Executing: %s", l);
5964
5965 j = safe_fork("(sysv-install)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
5966 if (j < 0)
5967 return j;
5968 if (j == 0) {
5969 /* Child */
5970 execv(argv[0], (char**) argv);
5971 log_error_errno(errno, "Failed to execute %s: %m", argv[0]);
5972 _exit(EXIT_FAILURE);
5973 }
5974
5975 j = wait_for_terminate_and_check("sysv-install", pid, WAIT_LOG_ABNORMAL);
5976 if (j < 0)
5977 return j;
5978 if (streq(verb, "is-enabled")) {
5979 if (j == EXIT_SUCCESS) {
5980 if (!arg_quiet)
5981 puts("enabled");
5982 r = 1;
5983 } else {
5984 if (!arg_quiet)
5985 puts("disabled");
5986 }
5987
5988 } else if (j != EXIT_SUCCESS)
5989 return -EBADE; /* We don't warn here, under the assumption the script already showed an explanation */
5990
5991 if (found_native)
5992 continue;
5993
5994 /* Remove this entry, so that we don't try enabling it as native unit */
5995 assert(f > 0);
5996 f--;
5997 assert(args[f] == name);
5998 strv_remove(args, name);
5999 }
6000
6001 #endif
6002 return r;
6003 }
6004
6005 static int mangle_names(char **original_names, char ***mangled_names) {
6006 char **i, **l, **name;
6007 int r;
6008
6009 l = i = new(char*, strv_length(original_names) + 1);
6010 if (!l)
6011 return log_oom();
6012
6013 STRV_FOREACH(name, original_names) {
6014
6015 /* When enabling units qualified path names are OK,
6016 * too, hence allow them explicitly. */
6017
6018 if (is_path(*name)) {
6019 *i = strdup(*name);
6020 if (!*i) {
6021 strv_free(l);
6022 return log_oom();
6023 }
6024 } else {
6025 r = unit_name_mangle(*name, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, i);
6026 if (r < 0) {
6027 *i = NULL;
6028 strv_free(l);
6029 return log_error_errno(r, "Failed to mangle unit name: %m");
6030 }
6031 }
6032
6033 i++;
6034 }
6035
6036 *i = NULL;
6037 *mangled_names = l;
6038
6039 return 0;
6040 }
6041
6042 static int normalize_filenames(char **names) {
6043 char **u;
6044 int r;
6045
6046 STRV_FOREACH(u, names)
6047 if (!path_is_absolute(*u)) {
6048 char* normalized_path;
6049
6050 if (!isempty(arg_root)) {
6051 log_error("Non-absolute paths are not allowed when --root is used: %s", *u);
6052 return -EINVAL;
6053 }
6054
6055 if (!strchr(*u,'/')) {
6056 log_error("Link argument does contain at least one directory separator: %s", *u);
6057 return -EINVAL;
6058 }
6059
6060 r = path_make_absolute_cwd(*u, &normalized_path);
6061 if (r < 0)
6062 return r;
6063
6064 free_and_replace(*u, normalized_path);
6065 }
6066
6067 return 0;
6068 }
6069
6070 static int normalize_names(char **names, bool warn_if_path) {
6071 char **u;
6072 bool was_path = false;
6073
6074 STRV_FOREACH(u, names) {
6075 int r;
6076
6077 if (!is_path(*u))
6078 continue;
6079
6080 r = free_and_strdup(u, basename(*u));
6081 if (r < 0)
6082 return log_error_errno(r, "Failed to normalize unit file path: %m");
6083
6084 was_path = true;
6085 }
6086
6087 if (warn_if_path && was_path)
6088 log_warning("Warning: Can't execute disable on the unit file path. Proceeding with the unit name.");
6089
6090 return 0;
6091 }
6092
6093 static int unit_exists(LookupPaths *lp, const char *unit) {
6094 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6095 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
6096 _cleanup_free_ char *path = NULL;
6097 static const struct bus_properties_map property_map[] = {
6098 { "LoadState", "s", NULL, offsetof(UnitStatusInfo, load_state) },
6099 { "ActiveState", "s", NULL, offsetof(UnitStatusInfo, active_state)},
6100 {},
6101 };
6102 UnitStatusInfo info = {};
6103 sd_bus *bus;
6104 int r;
6105
6106 if (unit_name_is_valid(unit, UNIT_NAME_TEMPLATE))
6107 return unit_find_template_path(unit, lp, NULL, NULL);
6108
6109 path = unit_dbus_path_from_name(unit);
6110 if (!path)
6111 return log_oom();
6112
6113 r = acquire_bus(BUS_MANAGER, &bus);
6114 if (r < 0)
6115 return r;
6116
6117 r = bus_map_all_properties(bus, "org.freedesktop.systemd1", path, property_map, 0, &error, &m, &info);
6118 if (r < 0)
6119 return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r));
6120
6121 return !streq_ptr(info.load_state, "not-found") || !streq_ptr(info.active_state, "inactive");
6122 }
6123
6124 static int enable_unit(int argc, char *argv[], void *userdata) {
6125 _cleanup_strv_free_ char **names = NULL;
6126 const char *verb = argv[0];
6127 UnitFileChange *changes = NULL;
6128 size_t n_changes = 0;
6129 int carries_install_info = -1;
6130 bool ignore_carries_install_info = arg_quiet;
6131 int r;
6132
6133 if (!argv[1])
6134 return 0;
6135
6136 r = mangle_names(strv_skip(argv, 1), &names);
6137 if (r < 0)
6138 return r;
6139
6140 r = enable_sysv_units(verb, names);
6141 if (r < 0)
6142 return r;
6143
6144 /* If the operation was fully executed by the SysV compat, let's finish early */
6145 if (strv_isempty(names)) {
6146 if (arg_no_reload || install_client_side())
6147 return 0;
6148 return daemon_reload(argc, argv, userdata);
6149 }
6150
6151 if (streq(verb, "disable")) {
6152 r = normalize_names(names, true);
6153 if (r < 0)
6154 return r;
6155 }
6156
6157 if (streq(verb, "link")) {
6158 r = normalize_filenames(names);
6159 if (r < 0)
6160 return r;
6161 }
6162
6163 if (install_client_side()) {
6164 UnitFileFlags flags;
6165
6166 flags = args_to_flags();
6167 if (streq(verb, "enable")) {
6168 r = unit_file_enable(arg_scope, flags, arg_root, names, &changes, &n_changes);
6169 carries_install_info = r;
6170 } else if (streq(verb, "disable"))
6171 r = unit_file_disable(arg_scope, flags, arg_root, names, &changes, &n_changes);
6172 else if (streq(verb, "reenable")) {
6173 r = unit_file_reenable(arg_scope, flags, arg_root, names, &changes, &n_changes);
6174 carries_install_info = r;
6175 } else if (streq(verb, "link"))
6176 r = unit_file_link(arg_scope, flags, arg_root, names, &changes, &n_changes);
6177 else if (streq(verb, "preset")) {
6178 r = unit_file_preset(arg_scope, flags, arg_root, names, arg_preset_mode, &changes, &n_changes);
6179 } else if (streq(verb, "mask"))
6180 r = unit_file_mask(arg_scope, flags, arg_root, names, &changes, &n_changes);
6181 else if (streq(verb, "unmask"))
6182 r = unit_file_unmask(arg_scope, flags, arg_root, names, &changes, &n_changes);
6183 else if (streq(verb, "revert"))
6184 r = unit_file_revert(arg_scope, arg_root, names, &changes, &n_changes);
6185 else
6186 assert_not_reached("Unknown verb");
6187
6188 unit_file_dump_changes(r, verb, changes, n_changes, arg_quiet);
6189 if (r < 0)
6190 goto finish;
6191 r = 0;
6192 } else {
6193 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL;
6194 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6195 bool expect_carries_install_info = false;
6196 bool send_runtime = true, send_force = true, send_preset_mode = false;
6197 const char *method;
6198 sd_bus *bus;
6199
6200 if (STR_IN_SET(verb, "mask", "unmask")) {
6201 char **name;
6202 _cleanup_(lookup_paths_free) LookupPaths lp = {};
6203
6204 r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
6205 if (r < 0)
6206 return r;
6207
6208 STRV_FOREACH(name, names) {
6209 r = unit_exists(&lp, *name);
6210 if (r < 0)
6211 return r;
6212 if (r == 0)
6213 log_notice("Unit %s does not exist, proceeding anyway.", *name);
6214 }
6215 }
6216
6217 r = acquire_bus(BUS_MANAGER, &bus);
6218 if (r < 0)
6219 return r;
6220
6221 polkit_agent_open_maybe();
6222
6223 if (streq(verb, "enable")) {
6224 method = "EnableUnitFiles";
6225 expect_carries_install_info = true;
6226 } else if (streq(verb, "disable")) {
6227 method = "DisableUnitFiles";
6228 send_force = false;
6229 } else if (streq(verb, "reenable")) {
6230 method = "ReenableUnitFiles";
6231 expect_carries_install_info = true;
6232 } else if (streq(verb, "link"))
6233 method = "LinkUnitFiles";
6234 else if (streq(verb, "preset")) {
6235
6236 if (arg_preset_mode != UNIT_FILE_PRESET_FULL) {
6237 method = "PresetUnitFilesWithMode";
6238 send_preset_mode = true;
6239 } else
6240 method = "PresetUnitFiles";
6241
6242 expect_carries_install_info = true;
6243 ignore_carries_install_info = true;
6244 } else if (streq(verb, "mask"))
6245 method = "MaskUnitFiles";
6246 else if (streq(verb, "unmask")) {
6247 method = "UnmaskUnitFiles";
6248 send_force = false;
6249 } else if (streq(verb, "revert")) {
6250 method = "RevertUnitFiles";
6251 send_runtime = send_force = false;
6252 } else
6253 assert_not_reached("Unknown verb");
6254
6255 r = sd_bus_message_new_method_call(
6256 bus,
6257 &m,
6258 "org.freedesktop.systemd1",
6259 "/org/freedesktop/systemd1",
6260 "org.freedesktop.systemd1.Manager",
6261 method);
6262 if (r < 0)
6263 return bus_log_create_error(r);
6264
6265 r = sd_bus_message_append_strv(m, names);
6266 if (r < 0)
6267 return bus_log_create_error(r);
6268
6269 if (send_preset_mode) {
6270 r = sd_bus_message_append(m, "s", unit_file_preset_mode_to_string(arg_preset_mode));
6271 if (r < 0)
6272 return bus_log_create_error(r);
6273 }
6274
6275 if (send_runtime) {
6276 r = sd_bus_message_append(m, "b", arg_runtime);
6277 if (r < 0)
6278 return bus_log_create_error(r);
6279 }
6280
6281 if (send_force) {
6282 r = sd_bus_message_append(m, "b", arg_force);
6283 if (r < 0)
6284 return bus_log_create_error(r);
6285 }
6286
6287 r = sd_bus_call(bus, m, 0, &error, &reply);
6288 if (r < 0)
6289 return log_error_errno(r, "Failed to %s unit: %s", verb, bus_error_message(&error, r));
6290
6291 if (expect_carries_install_info) {
6292 r = sd_bus_message_read(reply, "b", &carries_install_info);
6293 if (r < 0)
6294 return bus_log_parse_error(r);
6295 }
6296
6297 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
6298 if (r < 0)
6299 goto finish;
6300
6301 /* Try to reload if enabled */
6302 if (!arg_no_reload)
6303 r = daemon_reload(argc, argv, userdata);
6304 else
6305 r = 0;
6306 }
6307
6308 if (carries_install_info == 0 && !ignore_carries_install_info)
6309 log_warning("The unit files have no installation config (WantedBy, RequiredBy, Also, Alias\n"
6310 "settings in the [Install] section, and DefaultInstance for template units).\n"
6311 "This means they are not meant to be enabled using systemctl.\n"
6312 "Possible reasons for having this kind of units are:\n"
6313 "1) A unit may be statically enabled by being symlinked from another unit's\n"
6314 " .wants/ or .requires/ directory.\n"
6315 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
6316 " a requirement dependency on it.\n"
6317 "3) A unit may be started when needed via activation (socket, path, timer,\n"
6318 " D-Bus, udev, scripted systemctl call, ...).\n"
6319 "4) In case of template units, the unit is meant to be enabled with some\n"
6320 " instance name specified.");
6321
6322 if (arg_now && STR_IN_SET(argv[0], "enable", "disable", "mask")) {
6323 sd_bus *bus;
6324 size_t len, i;
6325
6326 r = acquire_bus(BUS_MANAGER, &bus);
6327 if (r < 0)
6328 goto finish;
6329
6330 len = strv_length(names);
6331 {
6332 char *new_args[len + 2];
6333
6334 new_args[0] = (char*) (streq(argv[0], "enable") ? "start" : "stop");
6335 for (i = 0; i < len; i++)
6336 new_args[i + 1] = basename(names[i]);
6337 new_args[i + 1] = NULL;
6338
6339 r = start_unit(len + 1, new_args, userdata);
6340 }
6341 }
6342
6343 finish:
6344 unit_file_changes_free(changes, n_changes);
6345
6346 return r;
6347 }
6348
6349 static int add_dependency(int argc, char *argv[], void *userdata) {
6350 _cleanup_strv_free_ char **names = NULL;
6351 _cleanup_free_ char *target = NULL;
6352 const char *verb = argv[0];
6353 UnitFileChange *changes = NULL;
6354 size_t n_changes = 0;
6355 UnitDependency dep;
6356 int r = 0;
6357
6358 if (!argv[1])
6359 return 0;
6360
6361 r = unit_name_mangle_with_suffix(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".target", &target);
6362 if (r < 0)
6363 return log_error_errno(r, "Failed to mangle unit name: %m");
6364
6365 r = mangle_names(strv_skip(argv, 2), &names);
6366 if (r < 0)
6367 return r;
6368
6369 if (streq(verb, "add-wants"))
6370 dep = UNIT_WANTS;
6371 else if (streq(verb, "add-requires"))
6372 dep = UNIT_REQUIRES;
6373 else
6374 assert_not_reached("Unknown verb");
6375
6376 if (install_client_side()) {
6377 r = unit_file_add_dependency(arg_scope, args_to_flags(), arg_root, names, target, dep, &changes, &n_changes);
6378 unit_file_dump_changes(r, "add dependency on", changes, n_changes, arg_quiet);
6379
6380 if (r > 0)
6381 r = 0;
6382 } else {
6383 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL;
6384 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6385 sd_bus *bus;
6386
6387 r = acquire_bus(BUS_MANAGER, &bus);
6388 if (r < 0)
6389 return r;
6390
6391 polkit_agent_open_maybe();
6392
6393 r = sd_bus_message_new_method_call(
6394 bus,
6395 &m,
6396 "org.freedesktop.systemd1",
6397 "/org/freedesktop/systemd1",
6398 "org.freedesktop.systemd1.Manager",
6399 "AddDependencyUnitFiles");
6400 if (r < 0)
6401 return bus_log_create_error(r);
6402
6403 r = sd_bus_message_append_strv(m, names);
6404 if (r < 0)
6405 return bus_log_create_error(r);
6406
6407 r = sd_bus_message_append(m, "ssbb", target, unit_dependency_to_string(dep), arg_runtime, arg_force);
6408 if (r < 0)
6409 return bus_log_create_error(r);
6410
6411 r = sd_bus_call(bus, m, 0, &error, &reply);
6412 if (r < 0)
6413 return log_error_errno(r, "Failed to add dependency: %s", bus_error_message(&error, r));
6414
6415 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
6416 if (r < 0)
6417 goto finish;
6418
6419 if (arg_no_reload) {
6420 r = 0;
6421 goto finish;
6422 }
6423
6424 r = daemon_reload(argc, argv, userdata);
6425 }
6426
6427 finish:
6428 unit_file_changes_free(changes, n_changes);
6429
6430 return r;
6431 }
6432
6433 static int preset_all(int argc, char *argv[], void *userdata) {
6434 UnitFileChange *changes = NULL;
6435 size_t n_changes = 0;
6436 int r;
6437
6438 if (install_client_side()) {
6439 r = unit_file_preset_all(arg_scope, args_to_flags(), arg_root, arg_preset_mode, &changes, &n_changes);
6440 unit_file_dump_changes(r, "preset", changes, n_changes, arg_quiet);
6441
6442 if (r > 0)
6443 r = 0;
6444 } else {
6445 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6446 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
6447 sd_bus *bus;
6448
6449 r = acquire_bus(BUS_MANAGER, &bus);
6450 if (r < 0)
6451 return r;
6452
6453 polkit_agent_open_maybe();
6454
6455 r = sd_bus_call_method(
6456 bus,
6457 "org.freedesktop.systemd1",
6458 "/org/freedesktop/systemd1",
6459 "org.freedesktop.systemd1.Manager",
6460 "PresetAllUnitFiles",
6461 &error,
6462 &reply,
6463 "sbb",
6464 unit_file_preset_mode_to_string(arg_preset_mode),
6465 arg_runtime,
6466 arg_force);
6467 if (r < 0)
6468 return log_error_errno(r, "Failed to preset all units: %s", bus_error_message(&error, r));
6469
6470 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
6471 if (r < 0)
6472 goto finish;
6473
6474 if (arg_no_reload) {
6475 r = 0;
6476 goto finish;
6477 }
6478
6479 r = daemon_reload(argc, argv, userdata);
6480 }
6481
6482 finish:
6483 unit_file_changes_free(changes, n_changes);
6484
6485 return r;
6486 }
6487
6488 static int show_installation_targets_client_side(const char *name) {
6489 UnitFileChange *changes = NULL;
6490 size_t n_changes = 0, i;
6491 UnitFileFlags flags;
6492 char **p;
6493 int r;
6494
6495 p = STRV_MAKE(name);
6496 flags = UNIT_FILE_DRY_RUN |
6497 (arg_runtime ? UNIT_FILE_RUNTIME : 0);
6498
6499 r = unit_file_disable(UNIT_FILE_SYSTEM, flags, NULL, p, &changes, &n_changes);
6500 if (r < 0)
6501 return log_error_errno(r, "Failed to get file links for %s: %m", name);
6502
6503 for (i = 0; i < n_changes; i++)
6504 if (changes[i].type == UNIT_FILE_UNLINK)
6505 printf(" %s\n", changes[i].path);
6506
6507 return 0;
6508 }
6509
6510 static int show_installation_targets(sd_bus *bus, const char *name) {
6511 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
6512 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6513 const char *link;
6514 int r;
6515
6516 r = sd_bus_call_method(
6517 bus,
6518 "org.freedesktop.systemd1",
6519 "/org/freedesktop/systemd1",
6520 "org.freedesktop.systemd1.Manager",
6521 "GetUnitFileLinks",
6522 &error,
6523 &reply,
6524 "sb", name, arg_runtime);
6525 if (r < 0)
6526 return log_error_errno(r, "Failed to get unit file links for %s: %s", name, bus_error_message(&error, r));
6527
6528 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
6529 if (r < 0)
6530 return bus_log_parse_error(r);
6531
6532 while ((r = sd_bus_message_read(reply, "s", &link)) > 0)
6533 printf(" %s\n", link);
6534
6535 if (r < 0)
6536 return bus_log_parse_error(r);
6537
6538 r = sd_bus_message_exit_container(reply);
6539 if (r < 0)
6540 return bus_log_parse_error(r);
6541
6542 return 0;
6543 }
6544
6545 static int unit_is_enabled(int argc, char *argv[], void *userdata) {
6546 _cleanup_strv_free_ char **names = NULL;
6547 bool enabled;
6548 char **name;
6549 int r;
6550
6551 r = mangle_names(strv_skip(argv, 1), &names);
6552 if (r < 0)
6553 return r;
6554
6555 r = enable_sysv_units(argv[0], names);
6556 if (r < 0)
6557 return r;
6558
6559 enabled = r > 0;
6560
6561 if (install_client_side()) {
6562 STRV_FOREACH(name, names) {
6563 UnitFileState state;
6564
6565 r = unit_file_get_state(arg_scope, arg_root, *name, &state);
6566 if (r < 0)
6567 return log_error_errno(r, "Failed to get unit file state for %s: %m", *name);
6568
6569 if (IN_SET(state,
6570 UNIT_FILE_ENABLED,
6571 UNIT_FILE_ENABLED_RUNTIME,
6572 UNIT_FILE_STATIC,
6573 UNIT_FILE_INDIRECT,
6574 UNIT_FILE_GENERATED))
6575 enabled = true;
6576
6577 if (!arg_quiet) {
6578 puts(unit_file_state_to_string(state));
6579 if (arg_full) {
6580 r = show_installation_targets_client_side(*name);
6581 if (r < 0)
6582 return r;
6583 }
6584 }
6585 }
6586
6587 r = 0;
6588 } else {
6589 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6590 sd_bus *bus;
6591
6592 r = acquire_bus(BUS_MANAGER, &bus);
6593 if (r < 0)
6594 return r;
6595
6596 STRV_FOREACH(name, names) {
6597 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
6598 const char *s;
6599
6600 r = sd_bus_call_method(
6601 bus,
6602 "org.freedesktop.systemd1",
6603 "/org/freedesktop/systemd1",
6604 "org.freedesktop.systemd1.Manager",
6605 "GetUnitFileState",
6606 &error,
6607 &reply,
6608 "s", *name);
6609 if (r < 0)
6610 return log_error_errno(r, "Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
6611
6612 r = sd_bus_message_read(reply, "s", &s);
6613 if (r < 0)
6614 return bus_log_parse_error(r);
6615
6616 if (STR_IN_SET(s, "enabled", "enabled-runtime", "static", "indirect", "generated"))
6617 enabled = true;
6618
6619 if (!arg_quiet) {
6620 puts(s);
6621 if (arg_full) {
6622 r = show_installation_targets(bus, *name);
6623 if (r < 0)
6624 return r;
6625 }
6626 }
6627 }
6628 }
6629
6630 return enabled ? EXIT_SUCCESS : EXIT_FAILURE;
6631 }
6632
6633 static int match_startup_finished(sd_bus_message *m, void *userdata, sd_bus_error *error) {
6634 char **state = userdata;
6635 int r;
6636
6637 assert(state);
6638
6639 r = sd_bus_get_property_string(
6640 sd_bus_message_get_bus(m),
6641 "org.freedesktop.systemd1",
6642 "/org/freedesktop/systemd1",
6643 "org.freedesktop.systemd1.Manager",
6644 "SystemState",
6645 NULL,
6646 state);
6647
6648 sd_event_exit(sd_bus_get_event(sd_bus_message_get_bus(m)), r);
6649 return 0;
6650 }
6651
6652 static int is_system_running(int argc, char *argv[], void *userdata) {
6653 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6654 _cleanup_(sd_bus_slot_unrefp) sd_bus_slot *slot_startup_finished = NULL;
6655 _cleanup_(sd_event_unrefp) sd_event* event = NULL;
6656 _cleanup_free_ char *state = NULL;
6657 sd_bus *bus;
6658 int r;
6659
6660 if (running_in_chroot() > 0 || (arg_transport == BUS_TRANSPORT_LOCAL && !sd_booted())) {
6661 if (!arg_quiet)
6662 puts("offline");
6663 return EXIT_FAILURE;
6664 }
6665
6666 r = acquire_bus(BUS_MANAGER, &bus);
6667 if (r < 0)
6668 return r;
6669
6670 if (arg_wait) {
6671 r = sd_event_default(&event);
6672 if (r >= 0)
6673 r = sd_bus_attach_event(bus, event, 0);
6674 if (r >= 0)
6675 r = sd_bus_match_signal_async(
6676 bus,
6677 &slot_startup_finished,
6678 "org.freedesktop.systemd1",
6679 "/org/freedesktop/systemd1",
6680 "org.freedesktop.systemd1.Manager",
6681 "StartupFinished",
6682 match_startup_finished, NULL, &state);
6683 if (r < 0) {
6684 log_warning_errno(r, "Failed to request match for StartupFinished: %m");
6685 arg_wait = false;
6686 }
6687 }
6688
6689 r = sd_bus_get_property_string(
6690 bus,
6691 "org.freedesktop.systemd1",
6692 "/org/freedesktop/systemd1",
6693 "org.freedesktop.systemd1.Manager",
6694 "SystemState",
6695 &error,
6696 &state);
6697 if (r < 0) {
6698 log_warning_errno(r, "Failed to query system state: %s", bus_error_message(&error, r));
6699
6700 if (!arg_quiet)
6701 puts("unknown");
6702 return EXIT_FAILURE;
6703 }
6704
6705 if (arg_wait && STR_IN_SET(state, "initializing", "starting")) {
6706 r = sd_event_loop(event);
6707 if (r < 0) {
6708 log_warning_errno(r, "Failed to get property from event loop: %m");
6709 if (!arg_quiet)
6710 puts("unknown");
6711 return EXIT_FAILURE;
6712 }
6713 }
6714
6715 if (!arg_quiet)
6716 puts(state);
6717
6718 return streq(state, "running") ? EXIT_SUCCESS : EXIT_FAILURE;
6719 }
6720
6721 static int create_edit_temp_file(const char *new_path, const char *original_path, char **ret_tmp_fn) {
6722 _cleanup_free_ char *t = NULL;
6723 int r;
6724
6725 assert(new_path);
6726 assert(original_path);
6727 assert(ret_tmp_fn);
6728
6729 r = tempfn_random(new_path, NULL, &t);
6730 if (r < 0)
6731 return log_error_errno(r, "Failed to determine temporary filename for \"%s\": %m", new_path);
6732
6733 r = mkdir_parents(new_path, 0755);
6734 if (r < 0)
6735 return log_error_errno(r, "Failed to create directories for \"%s\": %m", new_path);
6736
6737 r = copy_file(original_path, t, 0, 0644, 0, COPY_REFLINK);
6738 if (r == -ENOENT) {
6739
6740 r = touch(t);
6741 if (r < 0)
6742 return log_error_errno(r, "Failed to create temporary file \"%s\": %m", t);
6743
6744 } else if (r < 0)
6745 return log_error_errno(r, "Failed to create temporary file for \"%s\": %m", new_path);
6746
6747 *ret_tmp_fn = TAKE_PTR(t);
6748
6749 return 0;
6750 }
6751
6752 static int get_file_to_edit(
6753 const LookupPaths *paths,
6754 const char *name,
6755 char **ret_path) {
6756
6757 _cleanup_free_ char *path = NULL, *run = NULL;
6758
6759 assert(name);
6760 assert(ret_path);
6761
6762 path = strjoin(paths->persistent_config, "/", name);
6763 if (!path)
6764 return log_oom();
6765
6766 if (arg_runtime) {
6767 run = strjoin(paths->runtime_config, "/", name);
6768 if (!run)
6769 return log_oom();
6770 }
6771
6772 if (arg_runtime) {
6773 if (access(path, F_OK) >= 0) {
6774 log_error("Refusing to create \"%s\" because it would be overridden by \"%s\" anyway.", run, path);
6775 return -EEXIST;
6776 }
6777
6778 *ret_path = TAKE_PTR(run);
6779 } else
6780 *ret_path = TAKE_PTR(path);
6781
6782 return 0;
6783 }
6784
6785 static int unit_file_create_new(
6786 const LookupPaths *paths,
6787 const char *unit_name,
6788 const char *suffix,
6789 char **ret_new_path,
6790 char **ret_tmp_path) {
6791
6792 char *tmp_new_path, *tmp_tmp_path, *ending;
6793 int r;
6794
6795 assert(unit_name);
6796 assert(ret_new_path);
6797 assert(ret_tmp_path);
6798
6799 ending = strjoina(unit_name, suffix);
6800 r = get_file_to_edit(paths, ending, &tmp_new_path);
6801 if (r < 0)
6802 return r;
6803
6804 r = create_edit_temp_file(tmp_new_path, tmp_new_path, &tmp_tmp_path);
6805 if (r < 0) {
6806 free(tmp_new_path);
6807 return r;
6808 }
6809
6810 *ret_new_path = tmp_new_path;
6811 *ret_tmp_path = tmp_tmp_path;
6812
6813 return 0;
6814 }
6815
6816 static int unit_file_create_copy(
6817 const LookupPaths *paths,
6818 const char *unit_name,
6819 const char *fragment_path,
6820 char **ret_new_path,
6821 char **ret_tmp_path) {
6822
6823 char *tmp_new_path, *tmp_tmp_path;
6824 int r;
6825
6826 assert(fragment_path);
6827 assert(unit_name);
6828 assert(ret_new_path);
6829 assert(ret_tmp_path);
6830
6831 r = get_file_to_edit(paths, unit_name, &tmp_new_path);
6832 if (r < 0)
6833 return r;
6834
6835 if (!path_equal(fragment_path, tmp_new_path) && access(tmp_new_path, F_OK) == 0) {
6836 char response;
6837
6838 r = ask_char(&response, "yn", "\"%s\" already exists. Overwrite with \"%s\"? [(y)es, (n)o] ", tmp_new_path, fragment_path);
6839 if (r < 0) {
6840 free(tmp_new_path);
6841 return r;
6842 }
6843 if (response != 'y') {
6844 log_warning("%s ignored", unit_name);
6845 free(tmp_new_path);
6846 return -EKEYREJECTED;
6847 }
6848 }
6849
6850 r = create_edit_temp_file(tmp_new_path, fragment_path, &tmp_tmp_path);
6851 if (r < 0) {
6852 free(tmp_new_path);
6853 return r;
6854 }
6855
6856 *ret_new_path = tmp_new_path;
6857 *ret_tmp_path = tmp_tmp_path;
6858
6859 return 0;
6860 }
6861
6862 static int run_editor(char **paths) {
6863 int r;
6864
6865 assert(paths);
6866
6867 r = safe_fork("(editor)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
6868 if (r < 0)
6869 return r;
6870 if (r == 0) {
6871 char **editor_args = NULL, **tmp_path, **original_path, *p;
6872 size_t n_editor_args = 0, i = 1, argc;
6873 const char **args, *editor;
6874
6875 argc = strv_length(paths)/2 + 1;
6876
6877 /* SYSTEMD_EDITOR takes precedence over EDITOR which takes precedence over VISUAL
6878 * If neither SYSTEMD_EDITOR nor EDITOR nor VISUAL are present,
6879 * we try to execute well known editors
6880 */
6881 editor = getenv("SYSTEMD_EDITOR");
6882 if (!editor)
6883 editor = getenv("EDITOR");
6884 if (!editor)
6885 editor = getenv("VISUAL");
6886
6887 if (!isempty(editor)) {
6888 editor_args = strv_split(editor, WHITESPACE);
6889 if (!editor_args) {
6890 (void) log_oom();
6891 _exit(EXIT_FAILURE);
6892 }
6893 n_editor_args = strv_length(editor_args);
6894 argc += n_editor_args - 1;
6895 }
6896 args = newa(const char*, argc + 1);
6897
6898 if (n_editor_args > 0) {
6899 args[0] = editor_args[0];
6900 for (; i < n_editor_args; i++)
6901 args[i] = editor_args[i];
6902 }
6903
6904 STRV_FOREACH_PAIR(original_path, tmp_path, paths) {
6905 args[i] = *tmp_path;
6906 i++;
6907 }
6908 args[i] = NULL;
6909
6910 if (n_editor_args > 0)
6911 execvp(args[0], (char* const*) args);
6912
6913 FOREACH_STRING(p, "editor", "nano", "vim", "vi") {
6914 args[0] = p;
6915 execvp(p, (char* const*) args);
6916 /* We do not fail if the editor doesn't exist
6917 * because we want to try each one of them before
6918 * failing.
6919 */
6920 if (errno != ENOENT) {
6921 log_error_errno(errno, "Failed to execute %s: %m", editor);
6922 _exit(EXIT_FAILURE);
6923 }
6924 }
6925
6926 log_error("Cannot edit unit(s), no editor available. Please set either $SYSTEMD_EDITOR, $EDITOR or $VISUAL.");
6927 _exit(EXIT_FAILURE);
6928 }
6929
6930 return 0;
6931 }
6932
6933 static int find_paths_to_edit(sd_bus *bus, char **names, char ***paths) {
6934 _cleanup_(lookup_paths_free) LookupPaths lp = {};
6935 char **name;
6936 int r;
6937
6938 assert(names);
6939 assert(paths);
6940
6941 r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
6942 if (r < 0)
6943 return r;
6944
6945 STRV_FOREACH(name, names) {
6946 _cleanup_free_ char *path = NULL, *new_path = NULL, *tmp_path = NULL, *tmp_name = NULL;
6947 const char *unit_name;
6948
6949 r = unit_find_paths(bus, *name, &lp, &path, NULL);
6950 if (r < 0)
6951 return r;
6952
6953 if (r == 0) {
6954 assert(!path);
6955
6956 if (!arg_force) {
6957 log_error("Run 'systemctl edit%s --force %s' to create a new unit.",
6958 arg_scope == UNIT_FILE_GLOBAL ? " --global" :
6959 arg_scope == UNIT_FILE_USER ? " --user" : "",
6960 *name);
6961 return -ENOENT;
6962 }
6963
6964 /* Create a new unit from scratch */
6965 unit_name = *name;
6966 r = unit_file_create_new(&lp, unit_name,
6967 arg_full ? NULL : ".d/override.conf",
6968 &new_path, &tmp_path);
6969 } else {
6970 assert(path);
6971
6972 unit_name = basename(path);
6973 /* We follow unit aliases, but we need to propagate the instance */
6974 if (unit_name_is_valid(*name, UNIT_NAME_INSTANCE) &&
6975 unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
6976 _cleanup_free_ char *instance = NULL;
6977
6978 r = unit_name_to_instance(*name, &instance);
6979 if (r < 0)
6980 return r;
6981
6982 r = unit_name_replace_instance(unit_name, instance, &tmp_name);
6983 if (r < 0)
6984 return r;
6985
6986 unit_name = tmp_name;
6987 }
6988
6989 if (arg_full)
6990 r = unit_file_create_copy(&lp, unit_name, path, &new_path, &tmp_path);
6991 else
6992 r = unit_file_create_new(&lp, unit_name, ".d/override.conf", &new_path, &tmp_path);
6993 }
6994 if (r < 0)
6995 return r;
6996
6997 r = strv_push_pair(paths, new_path, tmp_path);
6998 if (r < 0)
6999 return log_oom();
7000 new_path = tmp_path = NULL;
7001 }
7002
7003 return 0;
7004 }
7005
7006 static int edit(int argc, char *argv[], void *userdata) {
7007 _cleanup_(lookup_paths_free) LookupPaths lp = {};
7008 _cleanup_strv_free_ char **names = NULL;
7009 _cleanup_strv_free_ char **paths = NULL;
7010 char **original, **tmp;
7011 sd_bus *bus;
7012 int r;
7013
7014 if (!on_tty()) {
7015 log_error("Cannot edit units if not on a tty.");
7016 return -EINVAL;
7017 }
7018
7019 if (arg_transport != BUS_TRANSPORT_LOCAL) {
7020 log_error("Cannot edit units remotely.");
7021 return -EINVAL;
7022 }
7023
7024 r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
7025 if (r < 0)
7026 return log_error_errno(r, "Failed to determine unit paths: %m");
7027
7028 r = acquire_bus(BUS_MANAGER, &bus);
7029 if (r < 0)
7030 return r;
7031
7032 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
7033 if (r < 0)
7034 return log_error_errno(r, "Failed to expand names: %m");
7035
7036 STRV_FOREACH(tmp, names) {
7037 r = unit_is_masked(bus, &lp, *tmp);
7038 if (r < 0)
7039 return r;
7040
7041 if (r > 0) {
7042 log_error("Cannot edit %s: unit is masked.", *tmp);
7043 return -EINVAL;
7044 }
7045 }
7046
7047 r = find_paths_to_edit(bus, names, &paths);
7048 if (r < 0)
7049 return r;
7050
7051 if (strv_isempty(paths))
7052 return -ENOENT;
7053
7054 r = run_editor(paths);
7055 if (r < 0)
7056 goto end;
7057
7058 STRV_FOREACH_PAIR(original, tmp, paths) {
7059 /* If the temporary file is empty we ignore it.
7060 * This allows the user to cancel the modification.
7061 */
7062 if (null_or_empty_path(*tmp)) {
7063 log_warning("Editing \"%s\" canceled: temporary file is empty.", *original);
7064 continue;
7065 }
7066
7067 r = rename(*tmp, *original);
7068 if (r < 0) {
7069 r = log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", *tmp, *original);
7070 goto end;
7071 }
7072 }
7073
7074 r = 0;
7075
7076 if (!arg_no_reload && !install_client_side())
7077 r = daemon_reload(argc, argv, userdata);
7078
7079 end:
7080 STRV_FOREACH_PAIR(original, tmp, paths) {
7081 (void) unlink(*tmp);
7082
7083 /* Removing empty dropin dirs */
7084 if (!arg_full) {
7085 _cleanup_free_ char *dir;
7086
7087 dir = dirname_malloc(*original);
7088 if (!dir)
7089 return log_oom();
7090
7091 /* no need to check if the dir is empty, rmdir
7092 * does nothing if it is not the case.
7093 */
7094 (void) rmdir(dir);
7095 }
7096 }
7097
7098 return r;
7099 }
7100
7101 static int systemctl_help(void) {
7102 _cleanup_free_ char *link = NULL;
7103 int r;
7104
7105 (void) pager_open(arg_no_pager, false);
7106
7107 r = terminal_urlify_man("systemctl", "1", &link);
7108 if (r < 0)
7109 return log_oom();
7110
7111 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
7112 "Query or send control commands to the systemd manager.\n\n"
7113 " -h --help Show this help\n"
7114 " --version Show package version\n"
7115 " --system Connect to system manager\n"
7116 " --user Connect to user service manager\n"
7117 " -H --host=[USER@]HOST\n"
7118 " Operate on remote host\n"
7119 " -M --machine=CONTAINER\n"
7120 " Operate on local container\n"
7121 " -t --type=TYPE List units of a particular type\n"
7122 " --state=STATE List units with particular LOAD or SUB or ACTIVE state\n"
7123 " -p --property=NAME Show only properties by this name\n"
7124 " -a --all Show all properties/all units currently in memory,\n"
7125 " including dead/empty ones. To list all units installed on\n"
7126 " the system, use the 'list-unit-files' command instead.\n"
7127 " --failed Same as --state=failed\n"
7128 " -l --full Don't ellipsize unit names on output\n"
7129 " -r --recursive Show unit list of host and local containers\n"
7130 " --reverse Show reverse dependencies with 'list-dependencies'\n"
7131 " --job-mode=MODE Specify how to deal with already queued jobs, when\n"
7132 " queueing a new job\n"
7133 " --show-types When showing sockets, explicitly show their type\n"
7134 " --value When showing properties, only print the value\n"
7135 " -i --ignore-inhibitors\n"
7136 " When shutting down or sleeping, ignore inhibitors\n"
7137 " --kill-who=WHO Who to send signal to\n"
7138 " -s --signal=SIGNAL Which signal to send\n"
7139 " --now Start or stop unit in addition to enabling or disabling it\n"
7140 " --dry-run Only print what would be done\n"
7141 " -q --quiet Suppress output\n"
7142 " --wait For (re)start, wait until service stopped again\n"
7143 " For is-system-running, wait until startup is completed\n"
7144 " --no-block Do not wait until operation finished\n"
7145 " --no-wall Don't send wall message before halt/power-off/reboot\n"
7146 " --no-reload Don't reload daemon after en-/dis-abling unit files\n"
7147 " --no-legend Do not print a legend (column headers and hints)\n"
7148 " --no-pager Do not pipe output into a pager\n"
7149 " --no-ask-password\n"
7150 " Do not ask for system passwords\n"
7151 " --global Enable/disable/mask unit files globally\n"
7152 " --runtime Enable/disable/mask unit files temporarily until next\n"
7153 " reboot\n"
7154 " -f --force When enabling unit files, override existing symlinks\n"
7155 " When shutting down, execute action immediately\n"
7156 " --preset-mode= Apply only enable, only disable, or all presets\n"
7157 " --root=PATH Enable/disable/mask unit files in the specified root\n"
7158 " directory\n"
7159 " -n --lines=INTEGER Number of journal entries to show\n"
7160 " -o --output=STRING Change journal output mode (short, short-precise,\n"
7161 " short-iso, short-iso-precise, short-full,\n"
7162 " short-monotonic, short-unix,\n"
7163 " verbose, export, json, json-pretty, json-sse, cat)\n"
7164 " --firmware-setup Tell the firmware to show the setup menu on next boot\n"
7165 " --plain Print unit dependencies as a list instead of a tree\n\n"
7166 "Unit Commands:\n"
7167 " list-units [PATTERN...] List units currently in memory\n"
7168 " list-sockets [PATTERN...] List socket units currently in memory,\n"
7169 " ordered by address\n"
7170 " list-timers [PATTERN...] List timer units currently in memory,\n"
7171 " ordered by next elapse\n"
7172 " start UNIT... Start (activate) one or more units\n"
7173 " stop UNIT... Stop (deactivate) one or more units\n"
7174 " reload UNIT... Reload one or more units\n"
7175 " restart UNIT... Start or restart one or more units\n"
7176 " try-restart UNIT... Restart one or more units if active\n"
7177 " reload-or-restart UNIT... Reload one or more units if possible,\n"
7178 " otherwise start or restart\n"
7179 " try-reload-or-restart UNIT... If active, reload one or more units,\n"
7180 " if supported, otherwise restart\n"
7181 " isolate UNIT Start one unit and stop all others\n"
7182 " kill UNIT... Send signal to processes of a unit\n"
7183 " is-active PATTERN... Check whether units are active\n"
7184 " is-failed PATTERN... Check whether units are failed\n"
7185 " status [PATTERN...|PID...] Show runtime status of one or more units\n"
7186 " show [PATTERN...|JOB...] Show properties of one or more\n"
7187 " units/jobs or the manager\n"
7188 " cat PATTERN... Show files and drop-ins of specified units\n"
7189 " set-property UNIT PROPERTY=VALUE... Sets one or more properties of a unit\n"
7190 " help PATTERN...|PID... Show manual for one or more units\n"
7191 " reset-failed [PATTERN...] Reset failed state for all, one, or more\n"
7192 " units\n"
7193 " list-dependencies [UNIT] Recursively show units which are required\n"
7194 " or wanted by this unit or by which this\n"
7195 " unit is required or wanted\n\n"
7196 "Unit File Commands:\n"
7197 " list-unit-files [PATTERN...] List installed unit files\n"
7198 " enable [UNIT...|PATH...] Enable one or more unit files\n"
7199 " disable UNIT... Disable one or more unit files\n"
7200 " reenable UNIT... Reenable one or more unit files\n"
7201 " preset UNIT... Enable/disable one or more unit files\n"
7202 " based on preset configuration\n"
7203 " preset-all Enable/disable all unit files based on\n"
7204 " preset configuration\n"
7205 " is-enabled UNIT... Check whether unit files are enabled\n"
7206 " mask UNIT... Mask one or more units\n"
7207 " unmask UNIT... Unmask one or more units\n"
7208 " link PATH... Link one or more units files into\n"
7209 " the search path\n"
7210 " revert UNIT... Revert one or more unit files to vendor\n"
7211 " version\n"
7212 " add-wants TARGET UNIT... Add 'Wants' dependency for the target\n"
7213 " on specified one or more units\n"
7214 " add-requires TARGET UNIT... Add 'Requires' dependency for the target\n"
7215 " on specified one or more units\n"
7216 " edit UNIT... Edit one or more unit files\n"
7217 " get-default Get the name of the default target\n"
7218 " set-default TARGET Set the default target\n\n"
7219 "Machine Commands:\n"
7220 " list-machines [PATTERN...] List local containers and host\n\n"
7221 "Job Commands:\n"
7222 " list-jobs [PATTERN...] List jobs\n"
7223 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
7224 "Environment Commands:\n"
7225 " show-environment Dump environment\n"
7226 " set-environment VARIABLE=VALUE... Set one or more environment variables\n"
7227 " unset-environment VARIABLE... Unset one or more environment variables\n"
7228 " import-environment [VARIABLE...] Import all or some environment variables\n\n"
7229 "Manager Lifecycle Commands:\n"
7230 " daemon-reload Reload systemd manager configuration\n"
7231 " daemon-reexec Reexecute systemd manager\n\n"
7232 "System Commands:\n"
7233 " is-system-running Check whether system is fully running\n"
7234 " default Enter system default mode\n"
7235 " rescue Enter system rescue mode\n"
7236 " emergency Enter system emergency mode\n"
7237 " halt Shut down and halt the system\n"
7238 " poweroff Shut down and power-off the system\n"
7239 " reboot [ARG] Shut down and reboot the system\n"
7240 " kexec Shut down and reboot the system with kexec\n"
7241 " exit [EXIT_CODE] Request user instance or container exit\n"
7242 " switch-root ROOT [INIT] Change to a different root file system\n"
7243 " suspend Suspend the system\n"
7244 " hibernate Hibernate the system\n"
7245 " hybrid-sleep Hibernate and suspend the system\n"
7246 " suspend-then-hibernate Suspend the system, wake after a period of\n"
7247 " time and put it into hibernate\n"
7248 "\nSee the %s for details.\n"
7249 , program_invocation_short_name
7250 , link
7251 );
7252
7253 return 0;
7254 }
7255
7256 static int halt_help(void) {
7257 _cleanup_free_ char *link = NULL;
7258 int r;
7259
7260 r = terminal_urlify_man("halt", "8", &link);
7261 if (r < 0)
7262 return log_oom();
7263
7264 printf("%s [OPTIONS...]%s\n\n"
7265 "%s the system.\n\n"
7266 " --help Show this help\n"
7267 " --halt Halt the machine\n"
7268 " -p --poweroff Switch off the machine\n"
7269 " --reboot Reboot the machine\n"
7270 " -f --force Force immediate halt/power-off/reboot\n"
7271 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
7272 " -d --no-wtmp Don't write wtmp record\n"
7273 " --no-wall Don't send wall message before halt/power-off/reboot\n"
7274 "\nSee the %s for details.\n"
7275 , program_invocation_short_name
7276 , arg_action == ACTION_REBOOT ? " [ARG]" : "",
7277 arg_action == ACTION_REBOOT ? "Reboot" :
7278 arg_action == ACTION_POWEROFF ? "Power off" :
7279 "Halt"
7280 , link
7281 );
7282
7283 return 0;
7284 }
7285
7286 static int shutdown_help(void) {
7287 _cleanup_free_ char *link = NULL;
7288 int r;
7289
7290 r = terminal_urlify_man("shutdown", "8", &link);
7291 if (r < 0)
7292 return log_oom();
7293
7294 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
7295 "Shut down the system.\n\n"
7296 " --help Show this help\n"
7297 " -H --halt Halt the machine\n"
7298 " -P --poweroff Power-off the machine\n"
7299 " -r --reboot Reboot the machine\n"
7300 " -h Equivalent to --poweroff, overridden by --halt\n"
7301 " -k Don't halt/power-off/reboot, just send warnings\n"
7302 " --no-wall Don't send wall message before halt/power-off/reboot\n"
7303 " -c Cancel a pending shutdown\n"
7304 "\nSee the %s for details.\n"
7305 , program_invocation_short_name
7306 , link
7307 );
7308
7309 return 0;
7310 }
7311
7312 static int telinit_help(void) {
7313 _cleanup_free_ char *link = NULL;
7314 int r;
7315
7316 r = terminal_urlify_man("telinit", "8", &link);
7317 if (r < 0)
7318 return log_oom();
7319
7320 printf("%s [OPTIONS...] {COMMAND}\n\n"
7321 "Send control commands to the init daemon.\n\n"
7322 " --help Show this help\n"
7323 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
7324 "Commands:\n"
7325 " 0 Power-off the machine\n"
7326 " 6 Reboot the machine\n"
7327 " 2, 3, 4, 5 Start runlevelX.target unit\n"
7328 " 1, s, S Enter rescue mode\n"
7329 " q, Q Reload init daemon configuration\n"
7330 " u, U Reexecute init daemon\n"
7331 "\nSee the %s for details.\n"
7332 , program_invocation_short_name
7333 , link
7334 );
7335
7336 return 0;
7337 }
7338
7339 static int runlevel_help(void) {
7340 _cleanup_free_ char *link = NULL;
7341 int r;
7342
7343 r = terminal_urlify_man("runlevel", "8", &link);
7344 if (r < 0)
7345 return log_oom();
7346
7347 printf("%s [OPTIONS...]\n\n"
7348 "Prints the previous and current runlevel of the init system.\n\n"
7349 " --help Show this help\n"
7350 "\nSee the %s for details.\n"
7351 , program_invocation_short_name
7352 , link
7353 );
7354
7355 return 0;
7356 }
7357
7358 static void help_types(void) {
7359 if (!arg_no_legend)
7360 puts("Available unit types:");
7361
7362 DUMP_STRING_TABLE(unit_type, UnitType, _UNIT_TYPE_MAX);
7363 }
7364
7365 static void help_states(void) {
7366 if (!arg_no_legend)
7367 puts("Available unit load states:");
7368 DUMP_STRING_TABLE(unit_load_state, UnitLoadState, _UNIT_LOAD_STATE_MAX);
7369
7370 if (!arg_no_legend)
7371 puts("\nAvailable unit active states:");
7372 DUMP_STRING_TABLE(unit_active_state, UnitActiveState, _UNIT_ACTIVE_STATE_MAX);
7373
7374 if (!arg_no_legend)
7375 puts("\nAvailable automount unit substates:");
7376 DUMP_STRING_TABLE(automount_state, AutomountState, _AUTOMOUNT_STATE_MAX);
7377
7378 if (!arg_no_legend)
7379 puts("\nAvailable device unit substates:");
7380 DUMP_STRING_TABLE(device_state, DeviceState, _DEVICE_STATE_MAX);
7381
7382 if (!arg_no_legend)
7383 puts("\nAvailable mount unit substates:");
7384 DUMP_STRING_TABLE(mount_state, MountState, _MOUNT_STATE_MAX);
7385
7386 if (!arg_no_legend)
7387 puts("\nAvailable path unit substates:");
7388 DUMP_STRING_TABLE(path_state, PathState, _PATH_STATE_MAX);
7389
7390 if (!arg_no_legend)
7391 puts("\nAvailable scope unit substates:");
7392 DUMP_STRING_TABLE(scope_state, ScopeState, _SCOPE_STATE_MAX);
7393
7394 if (!arg_no_legend)
7395 puts("\nAvailable service unit substates:");
7396 DUMP_STRING_TABLE(service_state, ServiceState, _SERVICE_STATE_MAX);
7397
7398 if (!arg_no_legend)
7399 puts("\nAvailable slice unit substates:");
7400 DUMP_STRING_TABLE(slice_state, SliceState, _SLICE_STATE_MAX);
7401
7402 if (!arg_no_legend)
7403 puts("\nAvailable socket unit substates:");
7404 DUMP_STRING_TABLE(socket_state, SocketState, _SOCKET_STATE_MAX);
7405
7406 if (!arg_no_legend)
7407 puts("\nAvailable swap unit substates:");
7408 DUMP_STRING_TABLE(swap_state, SwapState, _SWAP_STATE_MAX);
7409
7410 if (!arg_no_legend)
7411 puts("\nAvailable target unit substates:");
7412 DUMP_STRING_TABLE(target_state, TargetState, _TARGET_STATE_MAX);
7413
7414 if (!arg_no_legend)
7415 puts("\nAvailable timer unit substates:");
7416 DUMP_STRING_TABLE(timer_state, TimerState, _TIMER_STATE_MAX);
7417 }
7418
7419 static int systemctl_parse_argv(int argc, char *argv[]) {
7420 enum {
7421 ARG_FAIL = 0x100,
7422 ARG_REVERSE,
7423 ARG_AFTER,
7424 ARG_BEFORE,
7425 ARG_DRY_RUN,
7426 ARG_SHOW_TYPES,
7427 ARG_IRREVERSIBLE,
7428 ARG_IGNORE_DEPENDENCIES,
7429 ARG_VALUE,
7430 ARG_VERSION,
7431 ARG_USER,
7432 ARG_SYSTEM,
7433 ARG_GLOBAL,
7434 ARG_NO_BLOCK,
7435 ARG_NO_LEGEND,
7436 ARG_NO_PAGER,
7437 ARG_NO_WALL,
7438 ARG_ROOT,
7439 ARG_NO_RELOAD,
7440 ARG_KILL_WHO,
7441 ARG_NO_ASK_PASSWORD,
7442 ARG_FAILED,
7443 ARG_RUNTIME,
7444 ARG_PLAIN,
7445 ARG_STATE,
7446 ARG_JOB_MODE,
7447 ARG_PRESET_MODE,
7448 ARG_FIRMWARE_SETUP,
7449 ARG_NOW,
7450 ARG_MESSAGE,
7451 ARG_WAIT,
7452 };
7453
7454 static const struct option options[] = {
7455 { "help", no_argument, NULL, 'h' },
7456 { "version", no_argument, NULL, ARG_VERSION },
7457 { "type", required_argument, NULL, 't' },
7458 { "property", required_argument, NULL, 'p' },
7459 { "all", no_argument, NULL, 'a' },
7460 { "reverse", no_argument, NULL, ARG_REVERSE },
7461 { "after", no_argument, NULL, ARG_AFTER },
7462 { "before", no_argument, NULL, ARG_BEFORE },
7463 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
7464 { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
7465 { "full", no_argument, NULL, 'l' },
7466 { "job-mode", required_argument, NULL, ARG_JOB_MODE },
7467 { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */
7468 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */
7469 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */
7470 { "ignore-inhibitors", no_argument, NULL, 'i' },
7471 { "value", no_argument, NULL, ARG_VALUE },
7472 { "user", no_argument, NULL, ARG_USER },
7473 { "system", no_argument, NULL, ARG_SYSTEM },
7474 { "global", no_argument, NULL, ARG_GLOBAL },
7475 { "wait", no_argument, NULL, ARG_WAIT },
7476 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
7477 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
7478 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
7479 { "no-wall", no_argument, NULL, ARG_NO_WALL },
7480 { "dry-run", no_argument, NULL, ARG_DRY_RUN },
7481 { "quiet", no_argument, NULL, 'q' },
7482 { "root", required_argument, NULL, ARG_ROOT },
7483 { "force", no_argument, NULL, 'f' },
7484 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
7485 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
7486 { "signal", required_argument, NULL, 's' },
7487 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
7488 { "host", required_argument, NULL, 'H' },
7489 { "machine", required_argument, NULL, 'M' },
7490 { "runtime", no_argument, NULL, ARG_RUNTIME },
7491 { "lines", required_argument, NULL, 'n' },
7492 { "output", required_argument, NULL, 'o' },
7493 { "plain", no_argument, NULL, ARG_PLAIN },
7494 { "state", required_argument, NULL, ARG_STATE },
7495 { "recursive", no_argument, NULL, 'r' },
7496 { "preset-mode", required_argument, NULL, ARG_PRESET_MODE },
7497 { "firmware-setup", no_argument, NULL, ARG_FIRMWARE_SETUP },
7498 { "now", no_argument, NULL, ARG_NOW },
7499 { "message", required_argument, NULL, ARG_MESSAGE },
7500 {}
7501 };
7502
7503 const char *p;
7504 int c, r;
7505
7506 assert(argc >= 0);
7507 assert(argv);
7508
7509 /* we default to allowing interactive authorization only in systemctl (not in the legacy commands) */
7510 arg_ask_password = true;
7511
7512 while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:ir", options, NULL)) >= 0)
7513
7514 switch (c) {
7515
7516 case 'h':
7517 return systemctl_help();
7518
7519 case ARG_VERSION:
7520 return version();
7521
7522 case 't': {
7523 if (isempty(optarg)) {
7524 log_error("--type= requires arguments.");
7525 return -EINVAL;
7526 }
7527
7528 for (p = optarg;;) {
7529 _cleanup_free_ char *type = NULL;
7530
7531 r = extract_first_word(&p, &type, ",", 0);
7532 if (r < 0)
7533 return log_error_errno(r, "Failed to parse type: %s", optarg);
7534 if (r == 0)
7535 break;
7536
7537 if (streq(type, "help")) {
7538 help_types();
7539 return 0;
7540 }
7541
7542 if (unit_type_from_string(type) >= 0) {
7543 if (strv_push(&arg_types, type) < 0)
7544 return log_oom();
7545 type = NULL;
7546 continue;
7547 }
7548
7549 /* It's much nicer to use --state= for
7550 * load states, but let's support this
7551 * in --types= too for compatibility
7552 * with old versions */
7553 if (unit_load_state_from_string(type) >= 0) {
7554 if (strv_push(&arg_states, type) < 0)
7555 return log_oom();
7556 type = NULL;
7557 continue;
7558 }
7559
7560 log_error("Unknown unit type or load state '%s'.", type);
7561 log_info("Use -t help to see a list of allowed values.");
7562 return -EINVAL;
7563 }
7564
7565 break;
7566 }
7567
7568 case 'p': {
7569 /* Make sure that if the empty property list
7570 was specified, we won't show any properties. */
7571 if (isempty(optarg) && !arg_properties) {
7572 arg_properties = new0(char*, 1);
7573 if (!arg_properties)
7574 return log_oom();
7575 } else
7576 for (p = optarg;;) {
7577 _cleanup_free_ char *prop = NULL;
7578
7579 r = extract_first_word(&p, &prop, ",", 0);
7580 if (r < 0)
7581 return log_error_errno(r, "Failed to parse property: %s", optarg);
7582 if (r == 0)
7583 break;
7584
7585 if (strv_push(&arg_properties, prop) < 0)
7586 return log_oom();
7587
7588 prop = NULL;
7589 }
7590
7591 /* If the user asked for a particular
7592 * property, show it to him, even if it is
7593 * empty. */
7594 arg_all = true;
7595
7596 break;
7597 }
7598
7599 case 'a':
7600 arg_all = true;
7601 break;
7602
7603 case ARG_REVERSE:
7604 arg_dependency = DEPENDENCY_REVERSE;
7605 break;
7606
7607 case ARG_AFTER:
7608 arg_dependency = DEPENDENCY_AFTER;
7609 arg_jobs_after = true;
7610 break;
7611
7612 case ARG_BEFORE:
7613 arg_dependency = DEPENDENCY_BEFORE;
7614 arg_jobs_before = true;
7615 break;
7616
7617 case ARG_SHOW_TYPES:
7618 arg_show_types = true;
7619 break;
7620
7621 case ARG_VALUE:
7622 arg_value = true;
7623 break;
7624
7625 case ARG_JOB_MODE:
7626 arg_job_mode = optarg;
7627 break;
7628
7629 case ARG_FAIL:
7630 arg_job_mode = "fail";
7631 break;
7632
7633 case ARG_IRREVERSIBLE:
7634 arg_job_mode = "replace-irreversibly";
7635 break;
7636
7637 case ARG_IGNORE_DEPENDENCIES:
7638 arg_job_mode = "ignore-dependencies";
7639 break;
7640
7641 case ARG_USER:
7642 arg_scope = UNIT_FILE_USER;
7643 break;
7644
7645 case ARG_SYSTEM:
7646 arg_scope = UNIT_FILE_SYSTEM;
7647 break;
7648
7649 case ARG_GLOBAL:
7650 arg_scope = UNIT_FILE_GLOBAL;
7651 break;
7652
7653 case ARG_WAIT:
7654 arg_wait = true;
7655 break;
7656
7657 case ARG_NO_BLOCK:
7658 arg_no_block = true;
7659 break;
7660
7661 case ARG_NO_LEGEND:
7662 arg_no_legend = true;
7663 break;
7664
7665 case ARG_NO_PAGER:
7666 arg_no_pager = true;
7667 break;
7668
7669 case ARG_NO_WALL:
7670 arg_no_wall = true;
7671 break;
7672
7673 case ARG_ROOT:
7674 r = parse_path_argument_and_warn(optarg, false, &arg_root);
7675 if (r < 0)
7676 return r;
7677 break;
7678
7679 case 'l':
7680 arg_full = true;
7681 break;
7682
7683 case ARG_FAILED:
7684 if (strv_extend(&arg_states, "failed") < 0)
7685 return log_oom();
7686
7687 break;
7688
7689 case ARG_DRY_RUN:
7690 arg_dry_run = true;
7691 break;
7692
7693 case 'q':
7694 arg_quiet = true;
7695 break;
7696
7697 case 'f':
7698 arg_force++;
7699 break;
7700
7701 case ARG_NO_RELOAD:
7702 arg_no_reload = true;
7703 break;
7704
7705 case ARG_KILL_WHO:
7706 arg_kill_who = optarg;
7707 break;
7708
7709 case 's':
7710 if (streq(optarg, "help")) {
7711 DUMP_STRING_TABLE(signal, int, _NSIG);
7712 return 0;
7713 }
7714
7715 arg_signal = signal_from_string(optarg);
7716 if (arg_signal < 0) {
7717 log_error("Failed to parse signal string %s.", optarg);
7718 return -EINVAL;
7719 }
7720 break;
7721
7722 case ARG_NO_ASK_PASSWORD:
7723 arg_ask_password = false;
7724 break;
7725
7726 case 'H':
7727 arg_transport = BUS_TRANSPORT_REMOTE;
7728 arg_host = optarg;
7729 break;
7730
7731 case 'M':
7732 arg_transport = BUS_TRANSPORT_MACHINE;
7733 arg_host = optarg;
7734 break;
7735
7736 case ARG_RUNTIME:
7737 arg_runtime = true;
7738 break;
7739
7740 case 'n':
7741 if (safe_atou(optarg, &arg_lines) < 0) {
7742 log_error("Failed to parse lines '%s'", optarg);
7743 return -EINVAL;
7744 }
7745 break;
7746
7747 case 'o':
7748 if (streq(optarg, "help")) {
7749 DUMP_STRING_TABLE(output_mode, OutputMode, _OUTPUT_MODE_MAX);
7750 return 0;
7751 }
7752
7753 arg_output = output_mode_from_string(optarg);
7754 if (arg_output < 0) {
7755 log_error("Unknown output '%s'.", optarg);
7756 return -EINVAL;
7757 }
7758 break;
7759
7760 case 'i':
7761 arg_ignore_inhibitors = true;
7762 break;
7763
7764 case ARG_PLAIN:
7765 arg_plain = true;
7766 break;
7767
7768 case ARG_FIRMWARE_SETUP:
7769 arg_firmware_setup = true;
7770 break;
7771
7772 case ARG_STATE: {
7773 if (isempty(optarg)) {
7774 log_error("--state= requires arguments.");
7775 return -EINVAL;
7776 }
7777
7778 for (p = optarg;;) {
7779 _cleanup_free_ char *s = NULL;
7780
7781 r = extract_first_word(&p, &s, ",", 0);
7782 if (r < 0)
7783 return log_error_errno(r, "Failed to parse state: %s", optarg);
7784 if (r == 0)
7785 break;
7786
7787 if (streq(s, "help")) {
7788 help_states();
7789 return 0;
7790 }
7791
7792 if (strv_push(&arg_states, s) < 0)
7793 return log_oom();
7794
7795 s = NULL;
7796 }
7797 break;
7798 }
7799
7800 case 'r':
7801 if (geteuid() != 0) {
7802 log_error("--recursive requires root privileges.");
7803 return -EPERM;
7804 }
7805
7806 arg_recursive = true;
7807 break;
7808
7809 case ARG_PRESET_MODE:
7810 if (streq(optarg, "help")) {
7811 DUMP_STRING_TABLE(unit_file_preset_mode, UnitFilePresetMode, _UNIT_FILE_PRESET_MAX);
7812 return 0;
7813 }
7814
7815 arg_preset_mode = unit_file_preset_mode_from_string(optarg);
7816 if (arg_preset_mode < 0) {
7817 log_error("Failed to parse preset mode: %s.", optarg);
7818 return -EINVAL;
7819 }
7820
7821 break;
7822
7823 case ARG_NOW:
7824 arg_now = true;
7825 break;
7826
7827 case ARG_MESSAGE:
7828 if (strv_extend(&arg_wall, optarg) < 0)
7829 return log_oom();
7830 break;
7831
7832 case '?':
7833 return -EINVAL;
7834
7835 default:
7836 assert_not_reached("Unhandled option");
7837 }
7838
7839 if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
7840 log_error("Cannot access user instance remotely.");
7841 return -EINVAL;
7842 }
7843
7844 if (arg_wait && arg_no_block) {
7845 log_error("--wait may not be combined with --no-block.");
7846 return -EINVAL;
7847 }
7848
7849 if (arg_runtime && STRPTR_IN_SET(argv[optind], "disable", "unmask", "preset", "preset-all")) {
7850 log_error("--runtime cannot be used with %s", argv[optind]);
7851 return -EINVAL;
7852 }
7853
7854 return 1;
7855 }
7856
7857 static int halt_parse_argv(int argc, char *argv[]) {
7858 enum {
7859 ARG_HELP = 0x100,
7860 ARG_HALT,
7861 ARG_REBOOT,
7862 ARG_NO_WALL
7863 };
7864
7865 static const struct option options[] = {
7866 { "help", no_argument, NULL, ARG_HELP },
7867 { "halt", no_argument, NULL, ARG_HALT },
7868 { "poweroff", no_argument, NULL, 'p' },
7869 { "reboot", no_argument, NULL, ARG_REBOOT },
7870 { "force", no_argument, NULL, 'f' },
7871 { "wtmp-only", no_argument, NULL, 'w' },
7872 { "no-wtmp", no_argument, NULL, 'd' },
7873 { "no-sync", no_argument, NULL, 'n' },
7874 { "no-wall", no_argument, NULL, ARG_NO_WALL },
7875 {}
7876 };
7877
7878 int c, r, runlevel;
7879
7880 assert(argc >= 0);
7881 assert(argv);
7882
7883 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
7884 if (IN_SET(runlevel, '0', '6'))
7885 arg_force = 2;
7886
7887 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0)
7888 switch (c) {
7889
7890 case ARG_HELP:
7891 return halt_help();
7892
7893 case ARG_HALT:
7894 arg_action = ACTION_HALT;
7895 break;
7896
7897 case 'p':
7898 if (arg_action != ACTION_REBOOT)
7899 arg_action = ACTION_POWEROFF;
7900 break;
7901
7902 case ARG_REBOOT:
7903 arg_action = ACTION_REBOOT;
7904 break;
7905
7906 case 'f':
7907 arg_force = 2;
7908 break;
7909
7910 case 'w':
7911 arg_dry_run = true;
7912 break;
7913
7914 case 'd':
7915 arg_no_wtmp = true;
7916 break;
7917
7918 case 'n':
7919 arg_no_sync = true;
7920 break;
7921
7922 case ARG_NO_WALL:
7923 arg_no_wall = true;
7924 break;
7925
7926 case 'i':
7927 case 'h':
7928 /* Compatibility nops */
7929 break;
7930
7931 case '?':
7932 return -EINVAL;
7933
7934 default:
7935 assert_not_reached("Unhandled option");
7936 }
7937
7938 if (arg_action == ACTION_REBOOT && (argc == optind || argc == optind + 1)) {
7939 r = update_reboot_parameter_and_warn(argc == optind + 1 ? argv[optind] : NULL);
7940 if (r < 0)
7941 return r;
7942 } else if (optind < argc) {
7943 log_error("Too many arguments.");
7944 return -EINVAL;
7945 }
7946
7947 return 1;
7948 }
7949
7950 static int parse_shutdown_time_spec(const char *t, usec_t *_u) {
7951 assert(t);
7952 assert(_u);
7953
7954 if (streq(t, "now"))
7955 *_u = 0;
7956 else if (!strchr(t, ':')) {
7957 uint64_t u;
7958
7959 if (safe_atou64(t, &u) < 0)
7960 return -EINVAL;
7961
7962 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
7963 } else {
7964 char *e = NULL;
7965 long hour, minute;
7966 struct tm tm = {};
7967 time_t s;
7968 usec_t n;
7969
7970 errno = 0;
7971 hour = strtol(t, &e, 10);
7972 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
7973 return -EINVAL;
7974
7975 minute = strtol(e+1, &e, 10);
7976 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
7977 return -EINVAL;
7978
7979 n = now(CLOCK_REALTIME);
7980 s = (time_t) (n / USEC_PER_SEC);
7981
7982 assert_se(localtime_r(&s, &tm));
7983
7984 tm.tm_hour = (int) hour;
7985 tm.tm_min = (int) minute;
7986 tm.tm_sec = 0;
7987
7988 s = mktime(&tm);
7989 assert(s >= 0);
7990
7991 *_u = (usec_t) s * USEC_PER_SEC;
7992
7993 while (*_u <= n)
7994 *_u += USEC_PER_DAY;
7995 }
7996
7997 return 0;
7998 }
7999
8000 static int shutdown_parse_argv(int argc, char *argv[]) {
8001 enum {
8002 ARG_HELP = 0x100,
8003 ARG_NO_WALL
8004 };
8005
8006 static const struct option options[] = {
8007 { "help", no_argument, NULL, ARG_HELP },
8008 { "halt", no_argument, NULL, 'H' },
8009 { "poweroff", no_argument, NULL, 'P' },
8010 { "reboot", no_argument, NULL, 'r' },
8011 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
8012 { "no-wall", no_argument, NULL, ARG_NO_WALL },
8013 {}
8014 };
8015
8016 char **wall = NULL;
8017 int c, r;
8018
8019 assert(argc >= 0);
8020 assert(argv);
8021
8022 while ((c = getopt_long(argc, argv, "HPrhkKat:fFc", options, NULL)) >= 0)
8023 switch (c) {
8024
8025 case ARG_HELP:
8026 return shutdown_help();
8027
8028 case 'H':
8029 arg_action = ACTION_HALT;
8030 break;
8031
8032 case 'P':
8033 arg_action = ACTION_POWEROFF;
8034 break;
8035
8036 case 'r':
8037 if (kexec_loaded())
8038 arg_action = ACTION_KEXEC;
8039 else
8040 arg_action = ACTION_REBOOT;
8041 break;
8042
8043 case 'K':
8044 arg_action = ACTION_KEXEC;
8045 break;
8046
8047 case 'h':
8048 if (arg_action != ACTION_HALT)
8049 arg_action = ACTION_POWEROFF;
8050 break;
8051
8052 case 'k':
8053 arg_dry_run = true;
8054 break;
8055
8056 case ARG_NO_WALL:
8057 arg_no_wall = true;
8058 break;
8059
8060 case 'a':
8061 case 't': /* Note that we also ignore any passed argument to -t, not just the -t itself */
8062 case 'f':
8063 case 'F':
8064 /* Compatibility nops */
8065 break;
8066
8067 case 'c':
8068 arg_action = ACTION_CANCEL_SHUTDOWN;
8069 break;
8070
8071 case '?':
8072 return -EINVAL;
8073
8074 default:
8075 assert_not_reached("Unhandled option");
8076 }
8077
8078 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
8079 r = parse_shutdown_time_spec(argv[optind], &arg_when);
8080 if (r < 0) {
8081 log_error("Failed to parse time specification: %s", argv[optind]);
8082 return r;
8083 }
8084 } else
8085 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
8086
8087 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
8088 /* No time argument for shutdown cancel */
8089 wall = argv + optind;
8090 else if (argc > optind + 1)
8091 /* We skip the time argument */
8092 wall = argv + optind + 1;
8093
8094 if (wall) {
8095 arg_wall = strv_copy(wall);
8096 if (!arg_wall)
8097 return log_oom();
8098 }
8099
8100 optind = argc;
8101
8102 return 1;
8103 }
8104
8105 static int telinit_parse_argv(int argc, char *argv[]) {
8106 enum {
8107 ARG_HELP = 0x100,
8108 ARG_NO_WALL
8109 };
8110
8111 static const struct option options[] = {
8112 { "help", no_argument, NULL, ARG_HELP },
8113 { "no-wall", no_argument, NULL, ARG_NO_WALL },
8114 {}
8115 };
8116
8117 static const struct {
8118 char from;
8119 enum action to;
8120 } table[] = {
8121 { '0', ACTION_POWEROFF },
8122 { '6', ACTION_REBOOT },
8123 { '1', ACTION_RESCUE },
8124 { '2', ACTION_RUNLEVEL2 },
8125 { '3', ACTION_RUNLEVEL3 },
8126 { '4', ACTION_RUNLEVEL4 },
8127 { '5', ACTION_RUNLEVEL5 },
8128 { 's', ACTION_RESCUE },
8129 { 'S', ACTION_RESCUE },
8130 { 'q', ACTION_RELOAD },
8131 { 'Q', ACTION_RELOAD },
8132 { 'u', ACTION_REEXEC },
8133 { 'U', ACTION_REEXEC }
8134 };
8135
8136 unsigned i;
8137 int c;
8138
8139 assert(argc >= 0);
8140 assert(argv);
8141
8142 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
8143 switch (c) {
8144
8145 case ARG_HELP:
8146 return telinit_help();
8147
8148 case ARG_NO_WALL:
8149 arg_no_wall = true;
8150 break;
8151
8152 case '?':
8153 return -EINVAL;
8154
8155 default:
8156 assert_not_reached("Unhandled option");
8157 }
8158
8159 if (optind >= argc) {
8160 log_error("%s: required argument missing.", program_invocation_short_name);
8161 return -EINVAL;
8162 }
8163
8164 if (optind + 1 < argc) {
8165 log_error("Too many arguments.");
8166 return -EINVAL;
8167 }
8168
8169 if (strlen(argv[optind]) != 1) {
8170 log_error("Expected single character argument.");
8171 return -EINVAL;
8172 }
8173
8174 for (i = 0; i < ELEMENTSOF(table); i++)
8175 if (table[i].from == argv[optind][0])
8176 break;
8177
8178 if (i >= ELEMENTSOF(table)) {
8179 log_error("Unknown command '%s'.", argv[optind]);
8180 return -EINVAL;
8181 }
8182
8183 arg_action = table[i].to;
8184
8185 optind++;
8186
8187 return 1;
8188 }
8189
8190 static int runlevel_parse_argv(int argc, char *argv[]) {
8191 enum {
8192 ARG_HELP = 0x100,
8193 };
8194
8195 static const struct option options[] = {
8196 { "help", no_argument, NULL, ARG_HELP },
8197 {}
8198 };
8199
8200 int c;
8201
8202 assert(argc >= 0);
8203 assert(argv);
8204
8205 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
8206 switch (c) {
8207
8208 case ARG_HELP:
8209 return runlevel_help();
8210
8211 case '?':
8212 return -EINVAL;
8213
8214 default:
8215 assert_not_reached("Unhandled option");
8216 }
8217
8218 if (optind < argc) {
8219 log_error("Too many arguments.");
8220 return -EINVAL;
8221 }
8222
8223 return 1;
8224 }
8225
8226 static int parse_argv(int argc, char *argv[]) {
8227 assert(argc >= 0);
8228 assert(argv);
8229
8230 if (program_invocation_short_name) {
8231
8232 if (strstr(program_invocation_short_name, "halt")) {
8233 arg_action = ACTION_HALT;
8234 return halt_parse_argv(argc, argv);
8235
8236 } else if (strstr(program_invocation_short_name, "poweroff")) {
8237 arg_action = ACTION_POWEROFF;
8238 return halt_parse_argv(argc, argv);
8239
8240 } else if (strstr(program_invocation_short_name, "reboot")) {
8241 if (kexec_loaded())
8242 arg_action = ACTION_KEXEC;
8243 else
8244 arg_action = ACTION_REBOOT;
8245 return halt_parse_argv(argc, argv);
8246
8247 } else if (strstr(program_invocation_short_name, "shutdown")) {
8248 arg_action = ACTION_POWEROFF;
8249 return shutdown_parse_argv(argc, argv);
8250
8251 } else if (strstr(program_invocation_short_name, "init")) {
8252
8253 /* Matches invocations as "init" as well as "telinit", which are synonymous when run as PID !=
8254 * 1 on SysV.
8255 *
8256 * On SysV "telinit" was the official command to communicate with PID 1, but "init" would
8257 * redirect itself to "telinit" if called with PID != 1. We follow the same logic here still,
8258 * though we add one level of indirection, as we implement "telinit" in "systemctl". Hence, for
8259 * us if you invoke "init" you get "systemd", but it will execve() "systemctl" immediately with
8260 * argv[] unmodified if PID is != 1. If you invoke "telinit" you directly get "systemctl". In
8261 * both cases we shall do the same thing, which is why we do strstr(p_i_s_n, "init") here, as a
8262 * quick way to match both.
8263 *
8264 * Also see redirect_telinit() in src/core/main.c. */
8265
8266 if (sd_booted() > 0) {
8267 arg_action = _ACTION_INVALID;
8268 return telinit_parse_argv(argc, argv);
8269 } else {
8270 /* Hmm, so some other init system is running, we need to forward this request to
8271 * it. For now we simply guess that it is Upstart. */
8272
8273 execv(TELINIT, argv);
8274
8275 log_error("Couldn't find an alternative telinit implementation to spawn.");
8276 return -EIO;
8277 }
8278
8279 } else if (strstr(program_invocation_short_name, "runlevel")) {
8280 arg_action = ACTION_RUNLEVEL;
8281 return runlevel_parse_argv(argc, argv);
8282 }
8283 }
8284
8285 arg_action = ACTION_SYSTEMCTL;
8286 return systemctl_parse_argv(argc, argv);
8287 }
8288
8289 #if HAVE_SYSV_COMPAT
8290 _pure_ static int action_to_runlevel(void) {
8291 static const char table[_ACTION_MAX] = {
8292 [ACTION_HALT] = '0',
8293 [ACTION_POWEROFF] = '0',
8294 [ACTION_REBOOT] = '6',
8295 [ACTION_RUNLEVEL2] = '2',
8296 [ACTION_RUNLEVEL3] = '3',
8297 [ACTION_RUNLEVEL4] = '4',
8298 [ACTION_RUNLEVEL5] = '5',
8299 [ACTION_RESCUE] = '1'
8300 };
8301
8302 assert(arg_action >= 0 && arg_action < _ACTION_MAX);
8303
8304 return table[arg_action];
8305 }
8306 #endif
8307
8308 static int talk_initctl(void) {
8309 #if HAVE_SYSV_COMPAT
8310 struct init_request request = {
8311 .magic = INIT_MAGIC,
8312 .sleeptime = 0,
8313 .cmd = INIT_CMD_RUNLVL
8314 };
8315
8316 _cleanup_close_ int fd = -1;
8317 char rl;
8318 int r;
8319 const char *p;
8320
8321 rl = action_to_runlevel();
8322 if (!rl)
8323 return 0;
8324
8325 request.runlevel = rl;
8326
8327 FOREACH_STRING(p, "/run/initctl", "/dev/initctl") {
8328 fd = open(p, O_WRONLY|O_NONBLOCK|O_CLOEXEC|O_NOCTTY);
8329 if (fd >= 0 || errno != ENOENT)
8330 break;
8331 }
8332 if (fd < 0) {
8333 if (errno == ENOENT)
8334 return 0;
8335
8336 return log_error_errno(errno, "Failed to open initctl fifo: %m");
8337 }
8338
8339 r = loop_write(fd, &request, sizeof(request), false);
8340 if (r < 0)
8341 return log_error_errno(r, "Failed to write to %s: %m", p);
8342
8343 return 1;
8344 #else
8345 return 0;
8346 #endif
8347 }
8348
8349 static int systemctl_main(int argc, char *argv[]) {
8350 static const Verb verbs[] = {
8351 { "list-units", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_units },
8352 { "list-unit-files", VERB_ANY, VERB_ANY, 0, list_unit_files },
8353 { "list-sockets", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_sockets },
8354 { "list-timers", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_timers },
8355 { "list-jobs", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_jobs },
8356 { "list-machines", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY|VERB_MUST_BE_ROOT, list_machines },
8357 { "clear-jobs", VERB_ANY, 1, VERB_ONLINE_ONLY, trivial_method },
8358 { "cancel", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, cancel_job },
8359 { "start", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8360 { "stop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8361 { "condstop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */
8362 { "reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8363 { "restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8364 { "try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8365 { "reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8366 { "reload-or-try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatbility with old systemctl <= 228 */
8367 { "try-reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8368 { "force-reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with SysV */
8369 { "condreload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */
8370 { "condrestart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with RH */
8371 { "isolate", 2, 2, VERB_ONLINE_ONLY, start_unit },
8372 { "kill", 2, VERB_ANY, VERB_ONLINE_ONLY, kill_unit },
8373 { "is-active", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active },
8374 { "check", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active }, /* deprecated alias of is-active */
8375 { "is-failed", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_failed },
8376 { "show", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
8377 { "cat", 2, VERB_ANY, VERB_ONLINE_ONLY, cat },
8378 { "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
8379 { "help", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
8380 { "daemon-reload", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload },
8381 { "daemon-reexec", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload },
8382 { "show-environment", VERB_ANY, 1, VERB_ONLINE_ONLY, show_environment },
8383 { "set-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
8384 { "unset-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
8385 { "import-environment", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, import_environment },
8386 { "halt", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8387 { "poweroff", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8388 { "reboot", VERB_ANY, 2, VERB_ONLINE_ONLY, start_system_special },
8389 { "kexec", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8390 { "suspend", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8391 { "hibernate", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8392 { "hybrid-sleep", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8393 { "suspend-then-hibernate",VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8394 { "default", VERB_ANY, 1, VERB_ONLINE_ONLY, start_special },
8395 { "rescue", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8396 { "emergency", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8397 { "exit", VERB_ANY, 2, VERB_ONLINE_ONLY, start_special },
8398 { "reset-failed", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, reset_failed },
8399 { "enable", 2, VERB_ANY, 0, enable_unit },
8400 { "disable", 2, VERB_ANY, 0, enable_unit },
8401 { "is-enabled", 2, VERB_ANY, 0, unit_is_enabled },
8402 { "reenable", 2, VERB_ANY, 0, enable_unit },
8403 { "preset", 2, VERB_ANY, 0, enable_unit },
8404 { "preset-all", VERB_ANY, 1, 0, preset_all },
8405 { "mask", 2, VERB_ANY, 0, enable_unit },
8406 { "unmask", 2, VERB_ANY, 0, enable_unit },
8407 { "link", 2, VERB_ANY, 0, enable_unit },
8408 { "revert", 2, VERB_ANY, 0, enable_unit },
8409 { "switch-root", 2, VERB_ANY, VERB_ONLINE_ONLY, switch_root },
8410 { "list-dependencies", VERB_ANY, 2, VERB_ONLINE_ONLY, list_dependencies },
8411 { "set-default", 2, 2, 0, set_default },
8412 { "get-default", VERB_ANY, 1, 0, get_default },
8413 { "set-property", 3, VERB_ANY, VERB_ONLINE_ONLY, set_property },
8414 { "is-system-running", VERB_ANY, 1, 0, is_system_running },
8415 { "add-wants", 3, VERB_ANY, 0, add_dependency },
8416 { "add-requires", 3, VERB_ANY, 0, add_dependency },
8417 { "edit", 2, VERB_ANY, VERB_ONLINE_ONLY, edit },
8418 {}
8419 };
8420
8421 return dispatch_verb(argc, argv, verbs, NULL);
8422 }
8423
8424 static int reload_with_fallback(void) {
8425 /* First, try systemd via D-Bus. */
8426 if (daemon_reload(0, NULL, NULL) >= 0)
8427 return 0;
8428
8429 /* Nothing else worked, so let's try signals */
8430 assert(IN_SET(arg_action, ACTION_RELOAD, ACTION_REEXEC));
8431
8432 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0)
8433 return log_error_errno(errno, "kill() failed: %m");
8434
8435 return 0;
8436 }
8437
8438 static int start_with_fallback(void) {
8439 /* First, try systemd via D-Bus. */
8440 if (start_unit(0, NULL, NULL) >= 0)
8441 return 0;
8442
8443 /* Nothing else worked, so let's try /dev/initctl */
8444 if (talk_initctl() > 0)
8445 return 0;
8446
8447 log_error("Failed to talk to init daemon.");
8448 return -EIO;
8449 }
8450
8451 static int halt_now(enum action a) {
8452 /* The kernel will automatically flush ATA disks and suchlike on reboot(), but the file systems need to be
8453 * synce'd explicitly in advance. */
8454 if (!arg_no_sync && !arg_dry_run)
8455 (void) sync();
8456
8457 /* Make sure C-A-D is handled by the kernel from this point on... */
8458 if (!arg_dry_run)
8459 (void) reboot(RB_ENABLE_CAD);
8460
8461 switch (a) {
8462
8463 case ACTION_HALT:
8464 if (!arg_quiet)
8465 log_info("Halting.");
8466 if (arg_dry_run)
8467 return 0;
8468 (void) reboot(RB_HALT_SYSTEM);
8469 return -errno;
8470
8471 case ACTION_POWEROFF:
8472 if (!arg_quiet)
8473 log_info("Powering off.");
8474 if (arg_dry_run)
8475 return 0;
8476 (void) reboot(RB_POWER_OFF);
8477 return -errno;
8478
8479 case ACTION_KEXEC:
8480 case ACTION_REBOOT:
8481 return reboot_with_parameter(REBOOT_FALLBACK |
8482 (arg_quiet ? 0 : REBOOT_LOG) |
8483 (arg_dry_run ? REBOOT_DRY_RUN : 0));
8484
8485 default:
8486 assert_not_reached("Unknown action.");
8487 }
8488 }
8489
8490 static int logind_schedule_shutdown(void) {
8491
8492 #if ENABLE_LOGIND
8493 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
8494 char date[FORMAT_TIMESTAMP_MAX];
8495 const char *action;
8496 sd_bus *bus;
8497 int r;
8498
8499 r = acquire_bus(BUS_FULL, &bus);
8500 if (r < 0)
8501 return r;
8502
8503 switch (arg_action) {
8504 case ACTION_HALT:
8505 action = "halt";
8506 break;
8507 case ACTION_POWEROFF:
8508 action = "poweroff";
8509 break;
8510 case ACTION_KEXEC:
8511 action = "kexec";
8512 break;
8513 case ACTION_EXIT:
8514 action = "exit";
8515 break;
8516 case ACTION_REBOOT:
8517 default:
8518 action = "reboot";
8519 break;
8520 }
8521
8522 if (arg_dry_run)
8523 action = strjoina("dry-", action);
8524
8525 (void) logind_set_wall_message();
8526
8527 r = sd_bus_call_method(
8528 bus,
8529 "org.freedesktop.login1",
8530 "/org/freedesktop/login1",
8531 "org.freedesktop.login1.Manager",
8532 "ScheduleShutdown",
8533 &error,
8534 NULL,
8535 "st",
8536 action,
8537 arg_when);
8538 if (r < 0)
8539 return log_warning_errno(r, "Failed to call ScheduleShutdown in logind, proceeding with immediate shutdown: %s", bus_error_message(&error, r));
8540
8541 if (!arg_quiet)
8542 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.", format_timestamp(date, sizeof(date), arg_when));
8543 return 0;
8544 #else
8545 log_error("Cannot schedule shutdown without logind support, proceeding with immediate shutdown.");
8546 return -ENOSYS;
8547 #endif
8548 }
8549
8550 static int halt_main(void) {
8551 int r;
8552
8553 r = logind_check_inhibitors(arg_action);
8554 if (r < 0)
8555 return r;
8556
8557 if (arg_when > 0)
8558 return logind_schedule_shutdown();
8559
8560 if (geteuid() != 0) {
8561 if (arg_dry_run || arg_force > 0) {
8562 (void) must_be_root();
8563 return -EPERM;
8564 }
8565
8566 /* Try logind if we are a normal user and no special
8567 * mode applies. Maybe polkit allows us to shutdown
8568 * the machine. */
8569 if (IN_SET(arg_action, ACTION_POWEROFF, ACTION_REBOOT, ACTION_HALT)) {
8570 r = logind_reboot(arg_action);
8571 if (r >= 0)
8572 return r;
8573 if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS))
8574 /* requested operation is not
8575 * supported on the local system or
8576 * already in progress */
8577 return r;
8578 /* on all other errors, try low-level operation */
8579 }
8580 }
8581
8582 /* In order to minimize the difference between operation with and
8583 * without logind, we explicitly enable non-blocking mode for this,
8584 * as logind's shutdown operations are always non-blocking. */
8585 arg_no_block = true;
8586
8587 if (!arg_dry_run && !arg_force)
8588 return start_with_fallback();
8589
8590 assert(geteuid() == 0);
8591
8592 if (!arg_no_wtmp) {
8593 if (sd_booted() > 0)
8594 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
8595 else {
8596 r = utmp_put_shutdown();
8597 if (r < 0)
8598 log_warning_errno(r, "Failed to write utmp record: %m");
8599 }
8600 }
8601
8602 if (arg_dry_run)
8603 return 0;
8604
8605 r = halt_now(arg_action);
8606 return log_error_errno(r, "Failed to reboot: %m");
8607 }
8608
8609 static int runlevel_main(void) {
8610 int r, runlevel, previous;
8611
8612 r = utmp_get_runlevel(&runlevel, &previous);
8613 if (r < 0) {
8614 puts("unknown");
8615 return r;
8616 }
8617
8618 printf("%c %c\n",
8619 previous <= 0 ? 'N' : previous,
8620 runlevel <= 0 ? 'N' : runlevel);
8621
8622 return 0;
8623 }
8624
8625 static int logind_cancel_shutdown(void) {
8626 #if ENABLE_LOGIND
8627 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
8628 sd_bus *bus;
8629 int r;
8630
8631 r = acquire_bus(BUS_FULL, &bus);
8632 if (r < 0)
8633 return r;
8634
8635 (void) logind_set_wall_message();
8636
8637 r = sd_bus_call_method(
8638 bus,
8639 "org.freedesktop.login1",
8640 "/org/freedesktop/login1",
8641 "org.freedesktop.login1.Manager",
8642 "CancelScheduledShutdown",
8643 &error,
8644 NULL, NULL);
8645 if (r < 0)
8646 return log_warning_errno(r, "Failed to talk to logind, shutdown hasn't been cancelled: %s", bus_error_message(&error, r));
8647
8648 return 0;
8649 #else
8650 log_error("Not compiled with logind support, cannot cancel scheduled shutdowns.");
8651 return -ENOSYS;
8652 #endif
8653 }
8654
8655 int main(int argc, char*argv[]) {
8656 int r;
8657
8658 argv_cmdline = argv[0];
8659
8660 setlocale(LC_ALL, "");
8661 log_parse_environment();
8662 log_open();
8663 sigbus_install();
8664
8665 /* Explicitly not on_tty() to avoid setting cached value.
8666 * This becomes relevant for piping output which might be
8667 * ellipsized. */
8668 original_stdout_is_tty = isatty(STDOUT_FILENO);
8669
8670 r = parse_argv(argc, argv);
8671 if (r <= 0)
8672 goto finish;
8673
8674 if (arg_action != ACTION_SYSTEMCTL && running_in_chroot() > 0) {
8675
8676 if (!arg_quiet)
8677 log_info("Running in chroot, ignoring request.");
8678 r = 0;
8679 goto finish;
8680 }
8681
8682 /* systemctl_main() will print an error message for the bus
8683 * connection, but only if it needs to */
8684
8685 switch (arg_action) {
8686
8687 case ACTION_SYSTEMCTL:
8688 r = systemctl_main(argc, argv);
8689 break;
8690
8691 /* Legacy command aliases set arg_action. They provide some fallbacks,
8692 * e.g. to tell sysvinit to reboot after you have installed systemd
8693 * binaries. */
8694
8695 case ACTION_HALT:
8696 case ACTION_POWEROFF:
8697 case ACTION_REBOOT:
8698 case ACTION_KEXEC:
8699 r = halt_main();
8700 break;
8701
8702 case ACTION_RUNLEVEL2:
8703 case ACTION_RUNLEVEL3:
8704 case ACTION_RUNLEVEL4:
8705 case ACTION_RUNLEVEL5:
8706 case ACTION_RESCUE:
8707 r = start_with_fallback();
8708 break;
8709
8710 case ACTION_RELOAD:
8711 case ACTION_REEXEC:
8712 r = reload_with_fallback();
8713 break;
8714
8715 case ACTION_CANCEL_SHUTDOWN:
8716 r = logind_cancel_shutdown();
8717 break;
8718
8719 case ACTION_RUNLEVEL:
8720 r = runlevel_main();
8721 break;
8722
8723 case ACTION_EXIT:
8724 case ACTION_SUSPEND:
8725 case ACTION_HIBERNATE:
8726 case ACTION_HYBRID_SLEEP:
8727 case ACTION_SUSPEND_THEN_HIBERNATE:
8728 case ACTION_EMERGENCY:
8729 case ACTION_DEFAULT:
8730 /* systemctl verbs with no equivalent in the legacy commands.
8731 * These cannot appear in arg_action. Fall through. */
8732
8733 case _ACTION_INVALID:
8734 default:
8735 assert_not_reached("Unknown action");
8736 }
8737
8738 finish:
8739 release_busses();
8740
8741 pager_close();
8742 ask_password_agent_close();
8743 polkit_agent_close();
8744
8745 strv_free(arg_types);
8746 strv_free(arg_states);
8747 strv_free(arg_properties);
8748
8749 strv_free(arg_wall);
8750 free(arg_root);
8751 free(arg_esp_path);
8752
8753 /* Note that we return r here, not EXIT_SUCCESS, so that we can implement the LSB-like return codes */
8754 return r < 0 ? EXIT_FAILURE : r;
8755 }
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