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