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coccinelle: O_NDELAY → O_NONBLOCK
[thirdparty/systemd.git] / src / systemctl / systemctl.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2 /***
3 This file is part of systemd.
4
5 Copyright 2010 Lennart Poettering
6 Copyright 2013 Marc-Antoine Perennou
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20 ***/
21
22 #include <errno.h>
23 #include <fcntl.h>
24 #include <getopt.h>
25 #include <linux/reboot.h>
26 #include <locale.h>
27 #include <stdbool.h>
28 #include <stddef.h>
29 #include <stdio.h>
30 #include <string.h>
31 #include <sys/prctl.h>
32 #include <sys/reboot.h>
33 #include <sys/socket.h>
34 #include <unistd.h>
35
36 #include "sd-bus.h"
37 #include "sd-daemon.h"
38 #include "sd-login.h"
39
40 #include "alloc-util.h"
41 #include "bootspec.h"
42 #include "bus-common-errors.h"
43 #include "bus-error.h"
44 #include "bus-message.h"
45 #include "bus-unit-util.h"
46 #include "bus-util.h"
47 #include "cgroup-show.h"
48 #include "cgroup-util.h"
49 #include "copy.h"
50 #include "dropin.h"
51 #include "efivars.h"
52 #include "env-util.h"
53 #include "escape.h"
54 #include "exit-status.h"
55 #include "fd-util.h"
56 #include "fileio.h"
57 #include "format-util.h"
58 #include "fs-util.h"
59 #include "glob-util.h"
60 #include "hostname-util.h"
61 #include "hexdecoct.h"
62 #include "initreq.h"
63 #include "install.h"
64 #include "io-util.h"
65 #include "list.h"
66 #include "locale-util.h"
67 #include "log.h"
68 #include "logs-show.h"
69 #include "macro.h"
70 #include "mkdir.h"
71 #include "pager.h"
72 #include "parse-util.h"
73 #include "path-lookup.h"
74 #include "path-util.h"
75 #include "process-util.h"
76 #include "rlimit-util.h"
77 #include "set.h"
78 #include "sigbus.h"
79 #include "signal-util.h"
80 #include "socket-util.h"
81 #include "spawn-ask-password-agent.h"
82 #include "spawn-polkit-agent.h"
83 #include "special.h"
84 #include "stat-util.h"
85 #include "strv.h"
86 #include "terminal-util.h"
87 #include "unit-def.h"
88 #include "unit-name.h"
89 #include "user-util.h"
90 #include "util.h"
91 #include "utmp-wtmp.h"
92 #include "verbs.h"
93 #include "virt.h"
94
95 /* The init script exit status codes
96 0 program is running or service is OK
97 1 program is dead and /var/run pid file exists
98 2 program is dead and /var/lock lock file exists
99 3 program is not running
100 4 program or service status is unknown
101 5-99 reserved for future LSB use
102 100-149 reserved for distribution use
103 150-199 reserved for application use
104 200-254 reserved
105 */
106 enum {
107 EXIT_PROGRAM_RUNNING_OR_SERVICE_OK = 0,
108 EXIT_PROGRAM_DEAD_AND_PID_EXISTS = 1,
109 EXIT_PROGRAM_DEAD_AND_LOCK_FILE_EXISTS = 2,
110 EXIT_PROGRAM_NOT_RUNNING = 3,
111 EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN = 4,
112 };
113
114 static char **arg_types = NULL;
115 static char **arg_states = NULL;
116 static char **arg_properties = NULL;
117 static bool arg_all = false;
118 static enum dependency {
119 DEPENDENCY_FORWARD,
120 DEPENDENCY_REVERSE,
121 DEPENDENCY_AFTER,
122 DEPENDENCY_BEFORE,
123 _DEPENDENCY_MAX
124 } arg_dependency = DEPENDENCY_FORWARD;
125 static const char *arg_job_mode = "replace";
126 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
127 static bool arg_wait = false;
128 static bool arg_no_block = false;
129 static bool arg_no_legend = false;
130 static bool arg_no_pager = false;
131 static bool arg_no_wtmp = false;
132 static bool arg_no_sync = false;
133 static bool arg_no_wall = false;
134 static bool arg_no_reload = false;
135 static bool arg_value = false;
136 static bool arg_show_types = false;
137 static bool arg_ignore_inhibitors = false;
138 static bool arg_dry_run = false;
139 static bool arg_quiet = false;
140 static bool arg_full = false;
141 static bool arg_recursive = false;
142 static int arg_force = 0;
143 static bool arg_ask_password = false;
144 static bool arg_runtime = false;
145 static UnitFilePresetMode arg_preset_mode = UNIT_FILE_PRESET_FULL;
146 static char **arg_wall = NULL;
147 static const char *arg_kill_who = NULL;
148 static int arg_signal = SIGTERM;
149 static char *arg_root = NULL;
150 static usec_t arg_when = 0;
151 static char *arg_esp_path = NULL;
152 static char *argv_cmdline = NULL;
153 static enum action {
154 ACTION_SYSTEMCTL,
155 ACTION_HALT,
156 ACTION_POWEROFF,
157 ACTION_REBOOT,
158 ACTION_KEXEC,
159 ACTION_EXIT,
160 ACTION_SUSPEND,
161 ACTION_HIBERNATE,
162 ACTION_HYBRID_SLEEP,
163 ACTION_RUNLEVEL2,
164 ACTION_RUNLEVEL3,
165 ACTION_RUNLEVEL4,
166 ACTION_RUNLEVEL5,
167 ACTION_RESCUE,
168 ACTION_EMERGENCY,
169 ACTION_DEFAULT,
170 ACTION_RELOAD,
171 ACTION_REEXEC,
172 ACTION_RUNLEVEL,
173 ACTION_CANCEL_SHUTDOWN,
174 _ACTION_MAX,
175 _ACTION_INVALID = -1
176 } arg_action = ACTION_SYSTEMCTL;
177 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
178 static const char *arg_host = NULL;
179 static unsigned arg_lines = 10;
180 static OutputMode arg_output = OUTPUT_SHORT;
181 static bool arg_plain = false;
182 static bool arg_firmware_setup = false;
183 static bool arg_now = false;
184 static bool arg_jobs_before = false;
185 static bool arg_jobs_after = false;
186
187 static int daemon_reload(int argc, char *argv[], void* userdata);
188 static int trivial_method(int argc, char *argv[], void *userdata);
189 static int halt_now(enum action a);
190 static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state);
191
192 static bool original_stdout_is_tty;
193
194 typedef enum BusFocus {
195 BUS_FULL, /* The full bus indicated via --system or --user */
196 BUS_MANAGER, /* The manager itself, possibly directly, possibly via the bus */
197 _BUS_FOCUS_MAX
198 } BusFocus;
199
200 static sd_bus *busses[_BUS_FOCUS_MAX] = {};
201
202 static UnitFileFlags args_to_flags(void) {
203 return (arg_runtime ? UNIT_FILE_RUNTIME : 0) |
204 (arg_force ? UNIT_FILE_FORCE : 0);
205 }
206
207 static int acquire_bus(BusFocus focus, sd_bus **ret) {
208 int r;
209
210 assert(focus < _BUS_FOCUS_MAX);
211 assert(ret);
212
213 /* We only go directly to the manager, if we are using a local transport */
214 if (arg_transport != BUS_TRANSPORT_LOCAL)
215 focus = BUS_FULL;
216
217 if (getenv_bool("SYSTEMCTL_FORCE_BUS") > 0)
218 focus = BUS_FULL;
219
220 if (!busses[focus]) {
221 bool user;
222
223 user = arg_scope != UNIT_FILE_SYSTEM;
224
225 if (!user && sd_booted() <= 0) {
226 /* Print a friendly message when the local system is actually not running systemd as PID 1. */
227 log_error("System has not been booted with systemd as init system (PID 1). Can't operate.");
228 return -EHOSTDOWN;
229 }
230
231 if (focus == BUS_MANAGER)
232 r = bus_connect_transport_systemd(arg_transport, arg_host, user, &busses[focus]);
233 else
234 r = bus_connect_transport(arg_transport, arg_host, user, &busses[focus]);
235 if (r < 0)
236 return log_error_errno(r, "Failed to connect to bus: %m");
237
238 (void) sd_bus_set_allow_interactive_authorization(busses[focus], arg_ask_password);
239 }
240
241 *ret = busses[focus];
242 return 0;
243 }
244
245 static void release_busses(void) {
246 BusFocus w;
247
248 for (w = 0; w < _BUS_FOCUS_MAX; w++)
249 busses[w] = sd_bus_flush_close_unref(busses[w]);
250 }
251
252 static int map_string_no_copy(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
253 char *s;
254 const char **p = userdata;
255 int r;
256
257 r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &s);
258 if (r < 0)
259 return r;
260
261 if (!isempty(s))
262 *p = s;
263
264 return 0;
265 }
266
267 static void ask_password_agent_open_if_enabled(void) {
268
269 /* Open the password agent as a child process if necessary */
270
271 if (arg_dry_run)
272 return;
273
274 if (!arg_ask_password)
275 return;
276
277 if (arg_scope != UNIT_FILE_SYSTEM)
278 return;
279
280 if (arg_transport != BUS_TRANSPORT_LOCAL)
281 return;
282
283 ask_password_agent_open();
284 }
285
286 static void polkit_agent_open_maybe(void) {
287 /* Open the polkit agent as a child process if necessary */
288
289 if (arg_scope != UNIT_FILE_SYSTEM)
290 return;
291
292 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
293 }
294
295 static OutputFlags get_output_flags(void) {
296 return
297 arg_all * OUTPUT_SHOW_ALL |
298 (arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
299 colors_enabled() * OUTPUT_COLOR |
300 !arg_quiet * OUTPUT_WARN_CUTOFF;
301 }
302
303 static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
304 assert(error);
305
306 if (!sd_bus_error_is_set(error))
307 return r;
308
309 if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) ||
310 sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
311 sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
312 sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
313 return EXIT_NOPERMISSION;
314
315 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
316 return EXIT_NOTINSTALLED;
317
318 if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
319 sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED))
320 return EXIT_NOTIMPLEMENTED;
321
322 if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
323 return EXIT_NOTCONFIGURED;
324
325 if (r != 0)
326 return r;
327
328 return EXIT_FAILURE;
329 }
330
331 static bool install_client_side(void) {
332
333 /* Decides when to execute enable/disable/... operations
334 * client-side rather than server-side. */
335
336 if (running_in_chroot_or_offline())
337 return true;
338
339 if (sd_booted() <= 0)
340 return true;
341
342 if (!isempty(arg_root))
343 return true;
344
345 if (arg_scope == UNIT_FILE_GLOBAL)
346 return true;
347
348 /* Unsupported environment variable, mostly for debugging purposes */
349 if (getenv_bool("SYSTEMCTL_INSTALL_CLIENT_SIDE") > 0)
350 return true;
351
352 return false;
353 }
354
355 static int compare_unit_info(const void *a, const void *b) {
356 const UnitInfo *u = a, *v = b;
357 const char *d1, *d2;
358 int r;
359
360 /* First, order by machine */
361 if (!u->machine && v->machine)
362 return -1;
363 if (u->machine && !v->machine)
364 return 1;
365 if (u->machine && v->machine) {
366 r = strcasecmp(u->machine, v->machine);
367 if (r != 0)
368 return r;
369 }
370
371 /* Second, order by unit type */
372 d1 = strrchr(u->id, '.');
373 d2 = strrchr(v->id, '.');
374 if (d1 && d2) {
375 r = strcasecmp(d1, d2);
376 if (r != 0)
377 return r;
378 }
379
380 /* Third, order by name */
381 return strcasecmp(u->id, v->id);
382 }
383
384 static const char* unit_type_suffix(const char *name) {
385 const char *dot;
386
387 dot = strrchr(name, '.');
388 if (!dot)
389 return "";
390
391 return dot + 1;
392 }
393
394 static bool output_show_unit(const UnitInfo *u, char **patterns) {
395 assert(u);
396
397 if (!strv_fnmatch_or_empty(patterns, u->id, FNM_NOESCAPE))
398 return false;
399
400 if (arg_types && !strv_find(arg_types, unit_type_suffix(u->id)))
401 return false;
402
403 if (arg_all)
404 return true;
405
406 /* Note that '--all' is not purely a state filter, but also a
407 * filter that hides units that "follow" other units (which is
408 * used for device units that appear under different names). */
409 if (!isempty(u->following))
410 return false;
411
412 if (!strv_isempty(arg_states))
413 return true;
414
415 /* By default show all units except the ones in inactive
416 * state and with no pending job */
417 if (u->job_id > 0)
418 return true;
419
420 if (streq(u->active_state, "inactive"))
421 return false;
422
423 return true;
424 }
425
426 static int output_units_list(const UnitInfo *unit_infos, unsigned c) {
427 unsigned circle_len = 0, id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len, max_desc_len;
428 const UnitInfo *u;
429 unsigned n_shown = 0;
430 int job_count = 0;
431
432 max_id_len = STRLEN("UNIT");
433 load_len = STRLEN("LOAD");
434 active_len = STRLEN("ACTIVE");
435 sub_len = STRLEN("SUB");
436 job_len = STRLEN("JOB");
437 max_desc_len = STRLEN("DESCRIPTION");
438
439 for (u = unit_infos; u < unit_infos + c; u++) {
440 max_id_len = MAX(max_id_len, strlen(u->id) + (u->machine ? strlen(u->machine)+1 : 0));
441 load_len = MAX(load_len, strlen(u->load_state));
442 active_len = MAX(active_len, strlen(u->active_state));
443 sub_len = MAX(sub_len, strlen(u->sub_state));
444 max_desc_len = MAX(max_desc_len, strlen(u->description));
445
446 if (u->job_id != 0) {
447 job_len = MAX(job_len, strlen(u->job_type));
448 job_count++;
449 }
450
451 if (!arg_no_legend &&
452 (streq(u->active_state, "failed") ||
453 STR_IN_SET(u->load_state, "error", "not-found", "masked")))
454 circle_len = 2;
455 }
456
457 if (!arg_full && original_stdout_is_tty) {
458 unsigned basic_len;
459
460 id_len = MIN(max_id_len, 25u); /* as much as it needs, but at most 25 for now */
461 basic_len = circle_len + 1 + id_len + 1 + load_len + 1 + active_len + 1 + sub_len + 1;
462
463 if (job_count)
464 basic_len += job_len + 1;
465
466 if (basic_len < (unsigned) columns()) {
467 unsigned extra_len, incr;
468 extra_len = columns() - basic_len;
469
470 /* Either UNIT already got 25, or is fully satisfied.
471 * Grant up to 25 to DESC now. */
472 incr = MIN(extra_len, 25u);
473 desc_len = incr;
474 extra_len -= incr;
475
476 /* Of the remainder give as much as the ID needs to the ID, and give the rest to the
477 * description but not more than it needs. */
478 if (extra_len > 0) {
479 incr = MIN(max_id_len - id_len, extra_len);
480 id_len += incr;
481 desc_len += MIN(extra_len - incr, max_desc_len - desc_len);
482 }
483 } else
484 desc_len = 0;
485 } else {
486 id_len = max_id_len;
487 desc_len = max_desc_len;
488 }
489
490 for (u = unit_infos; u < unit_infos + c; u++) {
491 _cleanup_free_ char *e = NULL, *j = NULL;
492 const char *on_underline = "", *off_underline = "";
493 const char *on_loaded = "", *off_loaded = "";
494 const char *on_active = "", *off_active = "";
495 const char *on_circle = "", *off_circle = "";
496 const char *id;
497 bool circle = false, underline = false;
498
499 if (!n_shown && !arg_no_legend) {
500
501 if (circle_len > 0)
502 fputs(" ", stdout);
503
504 printf("%s%-*s %-*s %-*s %-*s ",
505 ansi_underline(),
506 id_len, "UNIT",
507 load_len, "LOAD",
508 active_len, "ACTIVE",
509 sub_len, "SUB");
510
511 if (job_count)
512 printf("%-*s ", job_len, "JOB");
513
514 printf("%-*.*s%s\n",
515 desc_len,
516 !arg_full && arg_no_pager ? (int) desc_len : -1,
517 "DESCRIPTION",
518 ansi_normal());
519 }
520
521 n_shown++;
522
523 if (u + 1 < unit_infos + c &&
524 !streq(unit_type_suffix(u->id), unit_type_suffix((u + 1)->id))) {
525 on_underline = ansi_underline();
526 off_underline = ansi_normal();
527 underline = true;
528 }
529
530 if (STR_IN_SET(u->load_state, "error", "not-found", "masked") && !arg_plain) {
531 on_circle = ansi_highlight_yellow();
532 off_circle = ansi_normal();
533 circle = true;
534 on_loaded = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
535 off_loaded = underline ? on_underline : ansi_normal();
536 } else if (streq(u->active_state, "failed") && !arg_plain) {
537 on_circle = ansi_highlight_red();
538 off_circle = ansi_normal();
539 circle = true;
540 on_active = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
541 off_active = underline ? on_underline : ansi_normal();
542 }
543
544 if (u->machine) {
545 j = strjoin(u->machine, ":", u->id);
546 if (!j)
547 return log_oom();
548
549 id = j;
550 } else
551 id = u->id;
552
553 if (arg_full) {
554 e = ellipsize(id, id_len, 33);
555 if (!e)
556 return log_oom();
557
558 id = e;
559 }
560
561 if (circle_len > 0)
562 printf("%s%s%s ", on_circle, circle ? special_glyph(BLACK_CIRCLE) : " ", off_circle);
563
564 printf("%s%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
565 on_underline,
566 on_active, id_len, id, off_active,
567 on_loaded, load_len, u->load_state, off_loaded,
568 on_active, active_len, u->active_state,
569 sub_len, u->sub_state, off_active,
570 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
571
572 printf("%-*.*s%s\n",
573 desc_len,
574 !arg_full && arg_no_pager ? (int) desc_len : -1,
575 u->description,
576 off_underline);
577 }
578
579 if (!arg_no_legend) {
580 const char *on, *off;
581
582 if (n_shown) {
583 puts("\n"
584 "LOAD = Reflects whether the unit definition was properly loaded.\n"
585 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
586 "SUB = The low-level unit activation state, values depend on unit type.");
587 puts(job_count ? "JOB = Pending job for the unit.\n" : "");
588 on = ansi_highlight();
589 off = ansi_normal();
590 } else {
591 on = ansi_highlight_red();
592 off = ansi_normal();
593 }
594
595 if (arg_all)
596 printf("%s%u loaded units listed.%s\n"
597 "To show all installed unit files use 'systemctl list-unit-files'.\n",
598 on, n_shown, off);
599 else
600 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
601 "To show all installed unit files use 'systemctl list-unit-files'.\n",
602 on, n_shown, off);
603 }
604
605 return 0;
606 }
607
608 static int get_unit_list(
609 sd_bus *bus,
610 const char *machine,
611 char **patterns,
612 UnitInfo **unit_infos,
613 int c,
614 sd_bus_message **_reply) {
615
616 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
617 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
618 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
619 size_t size = c;
620 int r;
621 UnitInfo u;
622 bool fallback = false;
623
624 assert(bus);
625 assert(unit_infos);
626 assert(_reply);
627
628 r = sd_bus_message_new_method_call(
629 bus,
630 &m,
631 "org.freedesktop.systemd1",
632 "/org/freedesktop/systemd1",
633 "org.freedesktop.systemd1.Manager",
634 "ListUnitsByPatterns");
635 if (r < 0)
636 return bus_log_create_error(r);
637
638 r = sd_bus_message_append_strv(m, arg_states);
639 if (r < 0)
640 return bus_log_create_error(r);
641
642 r = sd_bus_message_append_strv(m, patterns);
643 if (r < 0)
644 return bus_log_create_error(r);
645
646 r = sd_bus_call(bus, m, 0, &error, &reply);
647 if (r < 0 && (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD) ||
648 sd_bus_error_has_name(&error, SD_BUS_ERROR_ACCESS_DENIED))) {
649 /* Fallback to legacy ListUnitsFiltered method */
650 fallback = true;
651 log_debug_errno(r, "Failed to list units: %s Falling back to ListUnitsFiltered method.", bus_error_message(&error, r));
652 m = sd_bus_message_unref(m);
653 sd_bus_error_free(&error);
654
655 r = sd_bus_message_new_method_call(
656 bus,
657 &m,
658 "org.freedesktop.systemd1",
659 "/org/freedesktop/systemd1",
660 "org.freedesktop.systemd1.Manager",
661 "ListUnitsFiltered");
662 if (r < 0)
663 return bus_log_create_error(r);
664
665 r = sd_bus_message_append_strv(m, arg_states);
666 if (r < 0)
667 return bus_log_create_error(r);
668
669 r = sd_bus_call(bus, m, 0, &error, &reply);
670 }
671 if (r < 0)
672 return log_error_errno(r, "Failed to list units: %s", bus_error_message(&error, r));
673
674 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
675 if (r < 0)
676 return bus_log_parse_error(r);
677
678 while ((r = bus_parse_unit_info(reply, &u)) > 0) {
679 u.machine = machine;
680
681 if (!output_show_unit(&u, fallback ? patterns : NULL))
682 continue;
683
684 if (!GREEDY_REALLOC(*unit_infos, size, c+1))
685 return log_oom();
686
687 (*unit_infos)[c++] = u;
688 }
689 if (r < 0)
690 return bus_log_parse_error(r);
691
692 r = sd_bus_message_exit_container(reply);
693 if (r < 0)
694 return bus_log_parse_error(r);
695
696 *_reply = reply;
697 reply = NULL;
698
699 return c;
700 }
701
702 static void message_set_freep(Set **set) {
703 set_free_with_destructor(*set, sd_bus_message_unref);
704 }
705
706 static int get_unit_list_recursive(
707 sd_bus *bus,
708 char **patterns,
709 UnitInfo **_unit_infos,
710 Set **_replies,
711 char ***_machines) {
712
713 _cleanup_free_ UnitInfo *unit_infos = NULL;
714 _cleanup_(message_set_freep) Set *replies;
715 sd_bus_message *reply;
716 int c, r;
717
718 assert(bus);
719 assert(_replies);
720 assert(_unit_infos);
721 assert(_machines);
722
723 replies = set_new(NULL);
724 if (!replies)
725 return log_oom();
726
727 c = get_unit_list(bus, NULL, patterns, &unit_infos, 0, &reply);
728 if (c < 0)
729 return c;
730
731 r = set_put(replies, reply);
732 if (r < 0) {
733 sd_bus_message_unref(reply);
734 return log_oom();
735 }
736
737 if (arg_recursive) {
738 _cleanup_strv_free_ char **machines = NULL;
739 char **i;
740
741 r = sd_get_machine_names(&machines);
742 if (r < 0)
743 return log_error_errno(r, "Failed to get machine names: %m");
744
745 STRV_FOREACH(i, machines) {
746 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL;
747 int k;
748
749 r = sd_bus_open_system_machine(&container, *i);
750 if (r < 0) {
751 log_warning_errno(r, "Failed to connect to container %s, ignoring: %m", *i);
752 continue;
753 }
754
755 k = get_unit_list(container, *i, patterns, &unit_infos, c, &reply);
756 if (k < 0)
757 return k;
758
759 c = k;
760
761 r = set_put(replies, reply);
762 if (r < 0) {
763 sd_bus_message_unref(reply);
764 return log_oom();
765 }
766 }
767
768 *_machines = machines;
769 machines = NULL;
770 } else
771 *_machines = NULL;
772
773 *_unit_infos = unit_infos;
774 unit_infos = NULL;
775
776 *_replies = replies;
777 replies = NULL;
778
779 return c;
780 }
781
782 static int list_units(int argc, char *argv[], void *userdata) {
783 _cleanup_free_ UnitInfo *unit_infos = NULL;
784 _cleanup_(message_set_freep) Set *replies = NULL;
785 _cleanup_strv_free_ char **machines = NULL;
786 sd_bus *bus;
787 int r;
788
789 r = acquire_bus(BUS_MANAGER, &bus);
790 if (r < 0)
791 return r;
792
793 pager_open(arg_no_pager, false);
794
795 r = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
796 if (r < 0)
797 return r;
798
799 qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
800 return output_units_list(unit_infos, r);
801 }
802
803 static int get_triggered_units(
804 sd_bus *bus,
805 const char* path,
806 char*** ret) {
807
808 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
809 int r;
810
811 assert(bus);
812 assert(path);
813 assert(ret);
814
815 r = sd_bus_get_property_strv(
816 bus,
817 "org.freedesktop.systemd1",
818 path,
819 "org.freedesktop.systemd1.Unit",
820 "Triggers",
821 &error,
822 ret);
823 if (r < 0)
824 return log_error_errno(r, "Failed to determine triggers: %s", bus_error_message(&error, r));
825
826 return 0;
827 }
828
829 static int get_listening(
830 sd_bus *bus,
831 const char* unit_path,
832 char*** listening) {
833
834 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
835 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
836 const char *type, *path;
837 int r, n = 0;
838
839 r = sd_bus_get_property(
840 bus,
841 "org.freedesktop.systemd1",
842 unit_path,
843 "org.freedesktop.systemd1.Socket",
844 "Listen",
845 &error,
846 &reply,
847 "a(ss)");
848 if (r < 0)
849 return log_error_errno(r, "Failed to get list of listening sockets: %s", bus_error_message(&error, r));
850
851 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
852 if (r < 0)
853 return bus_log_parse_error(r);
854
855 while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) {
856
857 r = strv_extend(listening, type);
858 if (r < 0)
859 return log_oom();
860
861 r = strv_extend(listening, path);
862 if (r < 0)
863 return log_oom();
864
865 n++;
866 }
867 if (r < 0)
868 return bus_log_parse_error(r);
869
870 r = sd_bus_message_exit_container(reply);
871 if (r < 0)
872 return bus_log_parse_error(r);
873
874 return n;
875 }
876
877 struct socket_info {
878 const char *machine;
879 const char* id;
880
881 char* type;
882 char* path;
883
884 /* Note: triggered is a list here, although it almost certainly
885 * will always be one unit. Nevertheless, dbus API allows for multiple
886 * values, so let's follow that. */
887 char** triggered;
888
889 /* The strv above is shared. free is set only in the first one. */
890 bool own_triggered;
891 };
892
893 static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) {
894 int o;
895
896 assert(a);
897 assert(b);
898
899 if (!a->machine && b->machine)
900 return -1;
901 if (a->machine && !b->machine)
902 return 1;
903 if (a->machine && b->machine) {
904 o = strcasecmp(a->machine, b->machine);
905 if (o != 0)
906 return o;
907 }
908
909 o = strcmp(a->path, b->path);
910 if (o == 0)
911 o = strcmp(a->type, b->type);
912
913 return o;
914 }
915
916 static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
917 struct socket_info *s;
918 unsigned pathlen = STRLEN("LISTEN"),
919 typelen = STRLEN("TYPE") * arg_show_types,
920 socklen = STRLEN("UNIT"),
921 servlen = STRLEN("ACTIVATES");
922 const char *on, *off;
923
924 for (s = socket_infos; s < socket_infos + cs; s++) {
925 unsigned tmp = 0;
926 char **a;
927
928 socklen = MAX(socklen, strlen(s->id));
929 if (arg_show_types)
930 typelen = MAX(typelen, strlen(s->type));
931 pathlen = MAX(pathlen, strlen(s->path) + (s->machine ? strlen(s->machine)+1 : 0));
932
933 STRV_FOREACH(a, s->triggered)
934 tmp += strlen(*a) + 2*(a != s->triggered);
935 servlen = MAX(servlen, tmp);
936 }
937
938 if (cs) {
939 if (!arg_no_legend)
940 printf("%-*s %-*.*s%-*s %s\n",
941 pathlen, "LISTEN",
942 typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
943 socklen, "UNIT",
944 "ACTIVATES");
945
946 for (s = socket_infos; s < socket_infos + cs; s++) {
947 _cleanup_free_ char *j = NULL;
948 const char *path;
949 char **a;
950
951 if (s->machine) {
952 j = strjoin(s->machine, ":", s->path);
953 if (!j)
954 return log_oom();
955 path = j;
956 } else
957 path = s->path;
958
959 if (arg_show_types)
960 printf("%-*s %-*s %-*s",
961 pathlen, path, typelen, s->type, socklen, s->id);
962 else
963 printf("%-*s %-*s",
964 pathlen, path, socklen, s->id);
965 STRV_FOREACH(a, s->triggered)
966 printf("%s %s",
967 a == s->triggered ? "" : ",", *a);
968 printf("\n");
969 }
970
971 on = ansi_highlight();
972 off = ansi_normal();
973 if (!arg_no_legend)
974 printf("\n");
975 } else {
976 on = ansi_highlight_red();
977 off = ansi_normal();
978 }
979
980 if (!arg_no_legend) {
981 printf("%s%u sockets listed.%s\n", on, cs, off);
982 if (!arg_all)
983 printf("Pass --all to see loaded but inactive sockets, too.\n");
984 }
985
986 return 0;
987 }
988
989 static int list_sockets(int argc, char *argv[], void *userdata) {
990 _cleanup_(message_set_freep) Set *replies = NULL;
991 _cleanup_strv_free_ char **machines = NULL;
992 _cleanup_free_ UnitInfo *unit_infos = NULL;
993 _cleanup_free_ struct socket_info *socket_infos = NULL;
994 const UnitInfo *u;
995 struct socket_info *s;
996 unsigned cs = 0;
997 size_t size = 0;
998 int r = 0, n;
999 sd_bus *bus;
1000
1001 r = acquire_bus(BUS_MANAGER, &bus);
1002 if (r < 0)
1003 return r;
1004
1005 pager_open(arg_no_pager, false);
1006
1007 n = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
1008 if (n < 0)
1009 return n;
1010
1011 for (u = unit_infos; u < unit_infos + n; u++) {
1012 _cleanup_strv_free_ char **listening = NULL, **triggered = NULL;
1013 int i, c;
1014
1015 if (!endswith(u->id, ".socket"))
1016 continue;
1017
1018 r = get_triggered_units(bus, u->unit_path, &triggered);
1019 if (r < 0)
1020 goto cleanup;
1021
1022 c = get_listening(bus, u->unit_path, &listening);
1023 if (c < 0) {
1024 r = c;
1025 goto cleanup;
1026 }
1027
1028 if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
1029 r = log_oom();
1030 goto cleanup;
1031 }
1032
1033 for (i = 0; i < c; i++)
1034 socket_infos[cs + i] = (struct socket_info) {
1035 .machine = u->machine,
1036 .id = u->id,
1037 .type = listening[i*2],
1038 .path = listening[i*2 + 1],
1039 .triggered = triggered,
1040 .own_triggered = i==0,
1041 };
1042
1043 /* from this point on we will cleanup those socket_infos */
1044 cs += c;
1045 free(listening);
1046 listening = triggered = NULL; /* avoid cleanup */
1047 }
1048
1049 qsort_safe(socket_infos, cs, sizeof(struct socket_info),
1050 (__compar_fn_t) socket_info_compare);
1051
1052 output_sockets_list(socket_infos, cs);
1053
1054 cleanup:
1055 assert(cs == 0 || socket_infos);
1056 for (s = socket_infos; s < socket_infos + cs; s++) {
1057 free(s->type);
1058 free(s->path);
1059 if (s->own_triggered)
1060 strv_free(s->triggered);
1061 }
1062
1063 return r;
1064 }
1065
1066 static int get_next_elapse(
1067 sd_bus *bus,
1068 const char *path,
1069 dual_timestamp *next) {
1070
1071 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1072 dual_timestamp t;
1073 int r;
1074
1075 assert(bus);
1076 assert(path);
1077 assert(next);
1078
1079 r = sd_bus_get_property_trivial(
1080 bus,
1081 "org.freedesktop.systemd1",
1082 path,
1083 "org.freedesktop.systemd1.Timer",
1084 "NextElapseUSecMonotonic",
1085 &error,
1086 't',
1087 &t.monotonic);
1088 if (r < 0)
1089 return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r));
1090
1091 r = sd_bus_get_property_trivial(
1092 bus,
1093 "org.freedesktop.systemd1",
1094 path,
1095 "org.freedesktop.systemd1.Timer",
1096 "NextElapseUSecRealtime",
1097 &error,
1098 't',
1099 &t.realtime);
1100 if (r < 0)
1101 return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r));
1102
1103 *next = t;
1104 return 0;
1105 }
1106
1107 static int get_last_trigger(
1108 sd_bus *bus,
1109 const char *path,
1110 usec_t *last) {
1111
1112 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1113 int r;
1114
1115 assert(bus);
1116 assert(path);
1117 assert(last);
1118
1119 r = sd_bus_get_property_trivial(
1120 bus,
1121 "org.freedesktop.systemd1",
1122 path,
1123 "org.freedesktop.systemd1.Timer",
1124 "LastTriggerUSec",
1125 &error,
1126 't',
1127 last);
1128 if (r < 0)
1129 return log_error_errno(r, "Failed to get last trigger time: %s", bus_error_message(&error, r));
1130
1131 return 0;
1132 }
1133
1134 struct timer_info {
1135 const char* machine;
1136 const char* id;
1137 usec_t next_elapse;
1138 usec_t last_trigger;
1139 char** triggered;
1140 };
1141
1142 static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
1143 int o;
1144
1145 assert(a);
1146 assert(b);
1147
1148 if (!a->machine && b->machine)
1149 return -1;
1150 if (a->machine && !b->machine)
1151 return 1;
1152 if (a->machine && b->machine) {
1153 o = strcasecmp(a->machine, b->machine);
1154 if (o != 0)
1155 return o;
1156 }
1157
1158 if (a->next_elapse < b->next_elapse)
1159 return -1;
1160 if (a->next_elapse > b->next_elapse)
1161 return 1;
1162
1163 return strcmp(a->id, b->id);
1164 }
1165
1166 static int output_timers_list(struct timer_info *timer_infos, unsigned n) {
1167 struct timer_info *t;
1168 unsigned
1169 nextlen = STRLEN("NEXT"),
1170 leftlen = STRLEN("LEFT"),
1171 lastlen = STRLEN("LAST"),
1172 passedlen = STRLEN("PASSED"),
1173 unitlen = STRLEN("UNIT"),
1174 activatelen = STRLEN("ACTIVATES");
1175
1176 const char *on, *off;
1177
1178 assert(timer_infos || n == 0);
1179
1180 for (t = timer_infos; t < timer_infos + n; t++) {
1181 unsigned ul = 0;
1182 char **a;
1183
1184 if (t->next_elapse > 0) {
1185 char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
1186
1187 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
1188 nextlen = MAX(nextlen, strlen(tstamp) + 1);
1189
1190 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
1191 leftlen = MAX(leftlen, strlen(trel));
1192 }
1193
1194 if (t->last_trigger > 0) {
1195 char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
1196
1197 format_timestamp(tstamp, sizeof(tstamp), t->last_trigger);
1198 lastlen = MAX(lastlen, strlen(tstamp) + 1);
1199
1200 format_timestamp_relative(trel, sizeof(trel), t->last_trigger);
1201 passedlen = MAX(passedlen, strlen(trel));
1202 }
1203
1204 unitlen = MAX(unitlen, strlen(t->id) + (t->machine ? strlen(t->machine)+1 : 0));
1205
1206 STRV_FOREACH(a, t->triggered)
1207 ul += strlen(*a) + 2*(a != t->triggered);
1208
1209 activatelen = MAX(activatelen, ul);
1210 }
1211
1212 if (n > 0) {
1213 if (!arg_no_legend)
1214 printf("%-*s %-*s %-*s %-*s %-*s %s\n",
1215 nextlen, "NEXT",
1216 leftlen, "LEFT",
1217 lastlen, "LAST",
1218 passedlen, "PASSED",
1219 unitlen, "UNIT",
1220 "ACTIVATES");
1221
1222 for (t = timer_infos; t < timer_infos + n; t++) {
1223 _cleanup_free_ char *j = NULL;
1224 const char *unit;
1225 char tstamp1[FORMAT_TIMESTAMP_MAX] = "n/a", trel1[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
1226 char tstamp2[FORMAT_TIMESTAMP_MAX] = "n/a", trel2[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
1227 char **a;
1228
1229 format_timestamp(tstamp1, sizeof(tstamp1), t->next_elapse);
1230 format_timestamp_relative(trel1, sizeof(trel1), t->next_elapse);
1231
1232 format_timestamp(tstamp2, sizeof(tstamp2), t->last_trigger);
1233 format_timestamp_relative(trel2, sizeof(trel2), t->last_trigger);
1234
1235 if (t->machine) {
1236 j = strjoin(t->machine, ":", t->id);
1237 if (!j)
1238 return log_oom();
1239 unit = j;
1240 } else
1241 unit = t->id;
1242
1243 printf("%-*s %-*s %-*s %-*s %-*s",
1244 nextlen, tstamp1, leftlen, trel1, lastlen, tstamp2, passedlen, trel2, unitlen, unit);
1245
1246 STRV_FOREACH(a, t->triggered)
1247 printf("%s %s",
1248 a == t->triggered ? "" : ",", *a);
1249 printf("\n");
1250 }
1251
1252 on = ansi_highlight();
1253 off = ansi_normal();
1254 if (!arg_no_legend)
1255 printf("\n");
1256 } else {
1257 on = ansi_highlight_red();
1258 off = ansi_normal();
1259 }
1260
1261 if (!arg_no_legend) {
1262 printf("%s%u timers listed.%s\n", on, n, off);
1263 if (!arg_all)
1264 printf("Pass --all to see loaded but inactive timers, too.\n");
1265 }
1266
1267 return 0;
1268 }
1269
1270 static usec_t calc_next_elapse(dual_timestamp *nw, dual_timestamp *next) {
1271 usec_t next_elapse;
1272
1273 assert(nw);
1274 assert(next);
1275
1276 if (next->monotonic != USEC_INFINITY && next->monotonic > 0) {
1277 usec_t converted;
1278
1279 if (next->monotonic > nw->monotonic)
1280 converted = nw->realtime + (next->monotonic - nw->monotonic);
1281 else
1282 converted = nw->realtime - (nw->monotonic - next->monotonic);
1283
1284 if (next->realtime != USEC_INFINITY && next->realtime > 0)
1285 next_elapse = MIN(converted, next->realtime);
1286 else
1287 next_elapse = converted;
1288
1289 } else
1290 next_elapse = next->realtime;
1291
1292 return next_elapse;
1293 }
1294
1295 static int list_timers(int argc, char *argv[], void *userdata) {
1296 _cleanup_(message_set_freep) Set *replies = NULL;
1297 _cleanup_strv_free_ char **machines = NULL;
1298 _cleanup_free_ struct timer_info *timer_infos = NULL;
1299 _cleanup_free_ UnitInfo *unit_infos = NULL;
1300 struct timer_info *t;
1301 const UnitInfo *u;
1302 size_t size = 0;
1303 int n, c = 0;
1304 dual_timestamp nw;
1305 sd_bus *bus;
1306 int r = 0;
1307
1308 r = acquire_bus(BUS_MANAGER, &bus);
1309 if (r < 0)
1310 return r;
1311
1312 pager_open(arg_no_pager, false);
1313
1314 n = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
1315 if (n < 0)
1316 return n;
1317
1318 dual_timestamp_get(&nw);
1319
1320 for (u = unit_infos; u < unit_infos + n; u++) {
1321 _cleanup_strv_free_ char **triggered = NULL;
1322 dual_timestamp next = DUAL_TIMESTAMP_NULL;
1323 usec_t m, last = 0;
1324
1325 if (!endswith(u->id, ".timer"))
1326 continue;
1327
1328 r = get_triggered_units(bus, u->unit_path, &triggered);
1329 if (r < 0)
1330 goto cleanup;
1331
1332 r = get_next_elapse(bus, u->unit_path, &next);
1333 if (r < 0)
1334 goto cleanup;
1335
1336 get_last_trigger(bus, u->unit_path, &last);
1337
1338 if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
1339 r = log_oom();
1340 goto cleanup;
1341 }
1342
1343 m = calc_next_elapse(&nw, &next);
1344
1345 timer_infos[c++] = (struct timer_info) {
1346 .machine = u->machine,
1347 .id = u->id,
1348 .next_elapse = m,
1349 .last_trigger = last,
1350 .triggered = triggered,
1351 };
1352
1353 triggered = NULL; /* avoid cleanup */
1354 }
1355
1356 qsort_safe(timer_infos, c, sizeof(struct timer_info),
1357 (__compar_fn_t) timer_info_compare);
1358
1359 output_timers_list(timer_infos, c);
1360
1361 cleanup:
1362 for (t = timer_infos; t < timer_infos + c; t++)
1363 strv_free(t->triggered);
1364
1365 return r;
1366 }
1367
1368 static int compare_unit_file_list(const void *a, const void *b) {
1369 const char *d1, *d2;
1370 const UnitFileList *u = a, *v = b;
1371
1372 d1 = strrchr(u->path, '.');
1373 d2 = strrchr(v->path, '.');
1374
1375 if (d1 && d2) {
1376 int r;
1377
1378 r = strcasecmp(d1, d2);
1379 if (r != 0)
1380 return r;
1381 }
1382
1383 return strcasecmp(basename(u->path), basename(v->path));
1384 }
1385
1386 static bool output_show_unit_file(const UnitFileList *u, char **states, char **patterns) {
1387 assert(u);
1388
1389 if (!strv_fnmatch_or_empty(patterns, basename(u->path), FNM_NOESCAPE))
1390 return false;
1391
1392 if (!strv_isempty(arg_types)) {
1393 const char *dot;
1394
1395 dot = strrchr(u->path, '.');
1396 if (!dot)
1397 return false;
1398
1399 if (!strv_find(arg_types, dot+1))
1400 return false;
1401 }
1402
1403 if (!strv_isempty(states) &&
1404 !strv_find(states, unit_file_state_to_string(u->state)))
1405 return false;
1406
1407 return true;
1408 }
1409
1410 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
1411 unsigned max_id_len, id_cols, state_cols;
1412 const UnitFileList *u;
1413
1414 max_id_len = STRLEN("UNIT FILE");
1415 state_cols = STRLEN("STATE");
1416
1417 for (u = units; u < units + c; u++) {
1418 max_id_len = MAX(max_id_len, strlen(basename(u->path)));
1419 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
1420 }
1421
1422 if (!arg_full) {
1423 unsigned basic_cols;
1424
1425 id_cols = MIN(max_id_len, 25u);
1426 basic_cols = 1 + id_cols + state_cols;
1427 if (basic_cols < (unsigned) columns())
1428 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
1429 } else
1430 id_cols = max_id_len;
1431
1432 if (!arg_no_legend && c > 0)
1433 printf("%s%-*s %-*s%s\n",
1434 ansi_underline(),
1435 id_cols, "UNIT FILE",
1436 state_cols, "STATE",
1437 ansi_normal());
1438
1439 for (u = units; u < units + c; u++) {
1440 const char *on_underline = NULL, *on_color = NULL, *off = NULL, *id;
1441 _cleanup_free_ char *e = NULL;
1442 bool underline;
1443
1444 underline = u + 1 < units + c &&
1445 !streq(unit_type_suffix(u->path), unit_type_suffix((u + 1)->path));
1446
1447 if (underline)
1448 on_underline = ansi_underline();
1449
1450 if (IN_SET(u->state,
1451 UNIT_FILE_MASKED,
1452 UNIT_FILE_MASKED_RUNTIME,
1453 UNIT_FILE_DISABLED,
1454 UNIT_FILE_BAD))
1455 on_color = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
1456 else if (u->state == UNIT_FILE_ENABLED)
1457 on_color = underline ? ansi_highlight_green_underline() : ansi_highlight_green();
1458
1459 if (on_underline || on_color)
1460 off = ansi_normal();
1461
1462 id = basename(u->path);
1463
1464 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
1465
1466 printf("%s%-*s %s%-*s%s\n",
1467 strempty(on_underline),
1468 id_cols, e ? e : id,
1469 strempty(on_color), state_cols, unit_file_state_to_string(u->state), strempty(off));
1470 }
1471
1472 if (!arg_no_legend)
1473 printf("\n%u unit files listed.\n", c);
1474 }
1475
1476 static int list_unit_files(int argc, char *argv[], void *userdata) {
1477 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1478 _cleanup_free_ UnitFileList *units = NULL;
1479 UnitFileList *unit;
1480 size_t size = 0;
1481 unsigned c = 0;
1482 const char *state;
1483 char *path;
1484 int r;
1485 bool fallback = false;
1486
1487 if (install_client_side()) {
1488 Hashmap *h;
1489 UnitFileList *u;
1490 Iterator i;
1491 unsigned n_units;
1492
1493 h = hashmap_new(&string_hash_ops);
1494 if (!h)
1495 return log_oom();
1496
1497 r = unit_file_get_list(arg_scope, arg_root, h, arg_states, strv_skip(argv, 1));
1498 if (r < 0) {
1499 unit_file_list_free(h);
1500 return log_error_errno(r, "Failed to get unit file list: %m");
1501 }
1502
1503 n_units = hashmap_size(h);
1504
1505 units = new(UnitFileList, n_units ?: 1); /* avoid malloc(0) */
1506 if (!units) {
1507 unit_file_list_free(h);
1508 return log_oom();
1509 }
1510
1511 HASHMAP_FOREACH(u, h, i) {
1512 if (!output_show_unit_file(u, NULL, NULL))
1513 continue;
1514
1515 units[c++] = *u;
1516 free(u);
1517 }
1518
1519 assert(c <= n_units);
1520 hashmap_free(h);
1521
1522 r = 0;
1523 } else {
1524 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1525 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1526 sd_bus *bus;
1527
1528 r = acquire_bus(BUS_MANAGER, &bus);
1529 if (r < 0)
1530 return r;
1531
1532 r = sd_bus_message_new_method_call(
1533 bus,
1534 &m,
1535 "org.freedesktop.systemd1",
1536 "/org/freedesktop/systemd1",
1537 "org.freedesktop.systemd1.Manager",
1538 "ListUnitFilesByPatterns");
1539 if (r < 0)
1540 return bus_log_create_error(r);
1541
1542 r = sd_bus_message_append_strv(m, arg_states);
1543 if (r < 0)
1544 return bus_log_create_error(r);
1545
1546 r = sd_bus_message_append_strv(m, strv_skip(argv, 1));
1547 if (r < 0)
1548 return bus_log_create_error(r);
1549
1550 r = sd_bus_call(bus, m, 0, &error, &reply);
1551 if (r < 0 && sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)) {
1552 /* Fallback to legacy ListUnitFiles method */
1553 fallback = true;
1554 log_debug_errno(r, "Failed to list unit files: %s Falling back to ListUnitsFiles method.", bus_error_message(&error, r));
1555 m = sd_bus_message_unref(m);
1556 sd_bus_error_free(&error);
1557
1558 r = sd_bus_message_new_method_call(
1559 bus,
1560 &m,
1561 "org.freedesktop.systemd1",
1562 "/org/freedesktop/systemd1",
1563 "org.freedesktop.systemd1.Manager",
1564 "ListUnitFiles");
1565 if (r < 0)
1566 return bus_log_create_error(r);
1567
1568 r = sd_bus_call(bus, m, 0, &error, &reply);
1569 }
1570 if (r < 0)
1571 return log_error_errno(r, "Failed to list unit files: %s", bus_error_message(&error, r));
1572
1573 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
1574 if (r < 0)
1575 return bus_log_parse_error(r);
1576
1577 while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
1578
1579 if (!GREEDY_REALLOC(units, size, c + 1))
1580 return log_oom();
1581
1582 units[c] = (struct UnitFileList) {
1583 path,
1584 unit_file_state_from_string(state)
1585 };
1586
1587 if (output_show_unit_file(&units[c],
1588 fallback ? arg_states : NULL,
1589 fallback ? strv_skip(argv, 1) : NULL))
1590 c++;
1591
1592 }
1593 if (r < 0)
1594 return bus_log_parse_error(r);
1595
1596 r = sd_bus_message_exit_container(reply);
1597 if (r < 0)
1598 return bus_log_parse_error(r);
1599 }
1600
1601 pager_open(arg_no_pager, false);
1602
1603 qsort_safe(units, c, sizeof(UnitFileList), compare_unit_file_list);
1604 output_unit_file_list(units, c);
1605
1606 if (install_client_side())
1607 for (unit = units; unit < units + c; unit++)
1608 free(unit->path);
1609
1610 return 0;
1611 }
1612
1613 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
1614 _cleanup_free_ char *n = NULL;
1615 size_t max_len = MAX(columns(),20u);
1616 size_t len = 0;
1617 int i;
1618
1619 if (!arg_plain) {
1620
1621 for (i = level - 1; i >= 0; i--) {
1622 len += 2;
1623 if (len > max_len - 3 && !arg_full) {
1624 printf("%s...\n",max_len % 2 ? "" : " ");
1625 return 0;
1626 }
1627 printf("%s", special_glyph(branches & (1 << i) ? TREE_VERTICAL : TREE_SPACE));
1628 }
1629 len += 2;
1630
1631 if (len > max_len - 3 && !arg_full) {
1632 printf("%s...\n",max_len % 2 ? "" : " ");
1633 return 0;
1634 }
1635
1636 printf("%s", special_glyph(last ? TREE_RIGHT : TREE_BRANCH));
1637 }
1638
1639 if (arg_full) {
1640 printf("%s\n", name);
1641 return 0;
1642 }
1643
1644 n = ellipsize(name, max_len-len, 100);
1645 if (!n)
1646 return log_oom();
1647
1648 printf("%s\n", n);
1649 return 0;
1650 }
1651
1652 static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
1653
1654 static const char *dependencies[_DEPENDENCY_MAX] = {
1655 [DEPENDENCY_FORWARD] = "Requires\0"
1656 "Requisite\0"
1657 "Wants\0"
1658 "ConsistsOf\0"
1659 "BindsTo\0",
1660 [DEPENDENCY_REVERSE] = "RequiredBy\0"
1661 "RequisiteOf\0"
1662 "WantedBy\0"
1663 "PartOf\0"
1664 "BoundBy\0",
1665 [DEPENDENCY_AFTER] = "After\0",
1666 [DEPENDENCY_BEFORE] = "Before\0",
1667 };
1668
1669 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1670 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1671 _cleanup_strv_free_ char **ret = NULL;
1672 _cleanup_free_ char *path = NULL;
1673 int r;
1674
1675 assert(bus);
1676 assert(name);
1677 assert(deps);
1678 assert_cc(ELEMENTSOF(dependencies) == _DEPENDENCY_MAX);
1679
1680 path = unit_dbus_path_from_name(name);
1681 if (!path)
1682 return log_oom();
1683
1684 r = sd_bus_call_method(
1685 bus,
1686 "org.freedesktop.systemd1",
1687 path,
1688 "org.freedesktop.DBus.Properties",
1689 "GetAll",
1690 &error,
1691 &reply,
1692 "s", "org.freedesktop.systemd1.Unit");
1693 if (r < 0)
1694 return log_error_errno(r, "Failed to get properties of %s: %s", name, bus_error_message(&error, r));
1695
1696 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
1697 if (r < 0)
1698 return bus_log_parse_error(r);
1699
1700 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
1701 const char *prop;
1702
1703 r = sd_bus_message_read(reply, "s", &prop);
1704 if (r < 0)
1705 return bus_log_parse_error(r);
1706
1707 if (!nulstr_contains(dependencies[arg_dependency], prop)) {
1708 r = sd_bus_message_skip(reply, "v");
1709 if (r < 0)
1710 return bus_log_parse_error(r);
1711 } else {
1712
1713 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as");
1714 if (r < 0)
1715 return bus_log_parse_error(r);
1716
1717 r = bus_message_read_strv_extend(reply, &ret);
1718 if (r < 0)
1719 return bus_log_parse_error(r);
1720
1721 r = sd_bus_message_exit_container(reply);
1722 if (r < 0)
1723 return bus_log_parse_error(r);
1724 }
1725
1726 r = sd_bus_message_exit_container(reply);
1727 if (r < 0)
1728 return bus_log_parse_error(r);
1729
1730 }
1731 if (r < 0)
1732 return bus_log_parse_error(r);
1733
1734 r = sd_bus_message_exit_container(reply);
1735 if (r < 0)
1736 return bus_log_parse_error(r);
1737
1738 *deps = strv_uniq(ret);
1739 ret = NULL;
1740
1741 return 0;
1742 }
1743
1744 static int list_dependencies_compare(const void *_a, const void *_b) {
1745 const char **a = (const char**) _a, **b = (const char**) _b;
1746
1747 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1748 return 1;
1749 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1750 return -1;
1751
1752 return strcasecmp(*a, *b);
1753 }
1754
1755 static int list_dependencies_one(
1756 sd_bus *bus,
1757 const char *name,
1758 int level,
1759 char ***units,
1760 unsigned int branches) {
1761
1762 _cleanup_strv_free_ char **deps = NULL;
1763 char **c;
1764 int r = 0;
1765
1766 assert(bus);
1767 assert(name);
1768 assert(units);
1769
1770 r = strv_extend(units, name);
1771 if (r < 0)
1772 return log_oom();
1773
1774 r = list_dependencies_get_dependencies(bus, name, &deps);
1775 if (r < 0)
1776 return r;
1777
1778 qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1779
1780 STRV_FOREACH(c, deps) {
1781 if (strv_contains(*units, *c)) {
1782 if (!arg_plain) {
1783 printf(" ");
1784 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1785 if (r < 0)
1786 return r;
1787 }
1788 continue;
1789 }
1790
1791 if (arg_plain)
1792 printf(" ");
1793 else {
1794 UnitActiveState active_state = _UNIT_ACTIVE_STATE_INVALID;
1795 const char *on;
1796
1797 (void) get_state_one_unit(bus, *c, &active_state);
1798
1799 switch (active_state) {
1800 case UNIT_ACTIVE:
1801 case UNIT_RELOADING:
1802 case UNIT_ACTIVATING:
1803 on = ansi_highlight_green();
1804 break;
1805
1806 case UNIT_INACTIVE:
1807 case UNIT_DEACTIVATING:
1808 on = ansi_normal();
1809 break;
1810
1811 default:
1812 on = ansi_highlight_red();
1813 break;
1814 }
1815
1816 printf("%s%s%s ", on, special_glyph(BLACK_CIRCLE), ansi_normal());
1817 }
1818
1819 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1820 if (r < 0)
1821 return r;
1822
1823 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1824 r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (c[1] == NULL ? 0 : 1));
1825 if (r < 0)
1826 return r;
1827 }
1828 }
1829
1830 if (!arg_plain)
1831 strv_remove(*units, name);
1832
1833 return 0;
1834 }
1835
1836 static int list_dependencies(int argc, char *argv[], void *userdata) {
1837 _cleanup_strv_free_ char **units = NULL;
1838 _cleanup_free_ char *unit = NULL;
1839 const char *u;
1840 sd_bus *bus;
1841 int r;
1842
1843 if (argv[1]) {
1844 r = unit_name_mangle(argv[1], UNIT_NAME_NOGLOB, &unit);
1845 if (r < 0)
1846 return log_error_errno(r, "Failed to mangle unit name: %m");
1847
1848 u = unit;
1849 } else
1850 u = SPECIAL_DEFAULT_TARGET;
1851
1852 r = acquire_bus(BUS_MANAGER, &bus);
1853 if (r < 0)
1854 return r;
1855
1856 pager_open(arg_no_pager, false);
1857
1858 puts(u);
1859
1860 return list_dependencies_one(bus, u, 0, &units, 0);
1861 }
1862
1863 struct machine_info {
1864 bool is_host;
1865 char *name;
1866 char *state;
1867 char *control_group;
1868 uint32_t n_failed_units;
1869 uint32_t n_jobs;
1870 usec_t timestamp;
1871 };
1872
1873 static const struct bus_properties_map machine_info_property_map[] = {
1874 { "SystemState", "s", NULL, offsetof(struct machine_info, state) },
1875 { "NJobs", "u", NULL, offsetof(struct machine_info, n_jobs) },
1876 { "NFailedUnits", "u", NULL, offsetof(struct machine_info, n_failed_units) },
1877 { "ControlGroup", "s", NULL, offsetof(struct machine_info, control_group) },
1878 { "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp) },
1879 {}
1880 };
1881
1882 static void machine_info_clear(struct machine_info *info) {
1883 assert(info);
1884
1885 free(info->name);
1886 free(info->state);
1887 free(info->control_group);
1888 zero(*info);
1889 }
1890
1891 static void free_machines_list(struct machine_info *machine_infos, int n) {
1892 int i;
1893
1894 if (!machine_infos)
1895 return;
1896
1897 for (i = 0; i < n; i++)
1898 machine_info_clear(&machine_infos[i]);
1899
1900 free(machine_infos);
1901 }
1902
1903 static int compare_machine_info(const void *a, const void *b) {
1904 const struct machine_info *u = a, *v = b;
1905
1906 if (u->is_host != v->is_host)
1907 return u->is_host > v->is_host ? -1 : 1;
1908
1909 return strcasecmp(u->name, v->name);
1910 }
1911
1912 static int get_machine_properties(sd_bus *bus, struct machine_info *mi) {
1913 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL;
1914 int r;
1915
1916 assert(mi);
1917
1918 if (!bus) {
1919 r = sd_bus_open_system_machine(&container, mi->name);
1920 if (r < 0)
1921 return r;
1922
1923 bus = container;
1924 }
1925
1926 r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, NULL, mi);
1927 if (r < 0)
1928 return r;
1929
1930 return 0;
1931 }
1932
1933 static bool output_show_machine(const char *name, char **patterns) {
1934 return strv_fnmatch_or_empty(patterns, name, FNM_NOESCAPE);
1935 }
1936
1937 static int get_machine_list(
1938 sd_bus *bus,
1939 struct machine_info **_machine_infos,
1940 char **patterns) {
1941
1942 struct machine_info *machine_infos = NULL;
1943 _cleanup_strv_free_ char **m = NULL;
1944 _cleanup_free_ char *hn = NULL;
1945 size_t sz = 0;
1946 char **i;
1947 int c = 0, r;
1948
1949 hn = gethostname_malloc();
1950 if (!hn)
1951 return log_oom();
1952
1953 if (output_show_machine(hn, patterns)) {
1954 if (!GREEDY_REALLOC0(machine_infos, sz, c+1))
1955 return log_oom();
1956
1957 machine_infos[c].is_host = true;
1958 machine_infos[c].name = hn;
1959 hn = NULL;
1960
1961 (void) get_machine_properties(bus, &machine_infos[c]);
1962 c++;
1963 }
1964
1965 r = sd_get_machine_names(&m);
1966 if (r < 0)
1967 return log_error_errno(r, "Failed to get machine list: %m");
1968
1969 STRV_FOREACH(i, m) {
1970 _cleanup_free_ char *class = NULL;
1971
1972 if (!output_show_machine(*i, patterns))
1973 continue;
1974
1975 sd_machine_get_class(*i, &class);
1976 if (!streq_ptr(class, "container"))
1977 continue;
1978
1979 if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) {
1980 free_machines_list(machine_infos, c);
1981 return log_oom();
1982 }
1983
1984 machine_infos[c].is_host = false;
1985 machine_infos[c].name = strdup(*i);
1986 if (!machine_infos[c].name) {
1987 free_machines_list(machine_infos, c);
1988 return log_oom();
1989 }
1990
1991 (void) get_machine_properties(NULL, &machine_infos[c]);
1992 c++;
1993 }
1994
1995 *_machine_infos = machine_infos;
1996 return c;
1997 }
1998
1999 static void output_machines_list(struct machine_info *machine_infos, unsigned n) {
2000 struct machine_info *m;
2001 unsigned
2002 circle_len = 0,
2003 namelen = STRLEN("NAME"),
2004 statelen = STRLEN("STATE"),
2005 failedlen = STRLEN("FAILED"),
2006 jobslen = STRLEN("JOBS");
2007
2008 assert(machine_infos || n == 0);
2009
2010 for (m = machine_infos; m < machine_infos + n; m++) {
2011 namelen = MAX(namelen,
2012 strlen(m->name) + (m->is_host ? STRLEN(" (host)") : 0));
2013 statelen = MAX(statelen, strlen_ptr(m->state));
2014 failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units));
2015 jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs));
2016
2017 if (!arg_plain && !streq_ptr(m->state, "running"))
2018 circle_len = 2;
2019 }
2020
2021 if (!arg_no_legend) {
2022 if (circle_len > 0)
2023 fputs(" ", stdout);
2024
2025 printf("%-*s %-*s %-*s %-*s\n",
2026 namelen, "NAME",
2027 statelen, "STATE",
2028 failedlen, "FAILED",
2029 jobslen, "JOBS");
2030 }
2031
2032 for (m = machine_infos; m < machine_infos + n; m++) {
2033 const char *on_state = "", *off_state = "";
2034 const char *on_failed = "", *off_failed = "";
2035 bool circle = false;
2036
2037 if (streq_ptr(m->state, "degraded")) {
2038 on_state = ansi_highlight_red();
2039 off_state = ansi_normal();
2040 circle = true;
2041 } else if (!streq_ptr(m->state, "running")) {
2042 on_state = ansi_highlight_yellow();
2043 off_state = ansi_normal();
2044 circle = true;
2045 }
2046
2047 if (m->n_failed_units > 0) {
2048 on_failed = ansi_highlight_red();
2049 off_failed = ansi_normal();
2050 } else
2051 on_failed = off_failed = "";
2052
2053 if (circle_len > 0)
2054 printf("%s%s%s ", on_state, circle ? special_glyph(BLACK_CIRCLE) : " ", off_state);
2055
2056 if (m->is_host)
2057 printf("%-*s (host) %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n",
2058 (int) (namelen - (STRLEN(" (host)"))),
2059 strna(m->name),
2060 on_state, statelen, strna(m->state), off_state,
2061 on_failed, failedlen, m->n_failed_units, off_failed,
2062 jobslen, m->n_jobs);
2063 else
2064 printf("%-*s %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n",
2065 namelen, strna(m->name),
2066 on_state, statelen, strna(m->state), off_state,
2067 on_failed, failedlen, m->n_failed_units, off_failed,
2068 jobslen, m->n_jobs);
2069 }
2070
2071 if (!arg_no_legend)
2072 printf("\n%u machines listed.\n", n);
2073 }
2074
2075 static int list_machines(int argc, char *argv[], void *userdata) {
2076 struct machine_info *machine_infos = NULL;
2077 sd_bus *bus;
2078 int r;
2079
2080 r = acquire_bus(BUS_MANAGER, &bus);
2081 if (r < 0)
2082 return r;
2083
2084 r = get_machine_list(bus, &machine_infos, strv_skip(argv, 1));
2085 if (r < 0)
2086 return r;
2087
2088 pager_open(arg_no_pager, false);
2089
2090 qsort_safe(machine_infos, r, sizeof(struct machine_info), compare_machine_info);
2091 output_machines_list(machine_infos, r);
2092 free_machines_list(machine_infos, r);
2093
2094 return 0;
2095 }
2096
2097 static int get_default(int argc, char *argv[], void *userdata) {
2098 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2099 _cleanup_free_ char *_path = NULL;
2100 const char *path;
2101 int r;
2102
2103 if (install_client_side()) {
2104 r = unit_file_get_default(arg_scope, arg_root, &_path);
2105 if (r < 0)
2106 return log_error_errno(r, "Failed to get default target: %m");
2107 path = _path;
2108
2109 r = 0;
2110 } else {
2111 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2112 sd_bus *bus;
2113
2114 r = acquire_bus(BUS_MANAGER, &bus);
2115 if (r < 0)
2116 return r;
2117
2118 r = sd_bus_call_method(
2119 bus,
2120 "org.freedesktop.systemd1",
2121 "/org/freedesktop/systemd1",
2122 "org.freedesktop.systemd1.Manager",
2123 "GetDefaultTarget",
2124 &error,
2125 &reply,
2126 NULL);
2127 if (r < 0)
2128 return log_error_errno(r, "Failed to get default target: %s", bus_error_message(&error, r));
2129
2130 r = sd_bus_message_read(reply, "s", &path);
2131 if (r < 0)
2132 return bus_log_parse_error(r);
2133 }
2134
2135 if (path)
2136 printf("%s\n", path);
2137
2138 return 0;
2139 }
2140
2141 static int set_default(int argc, char *argv[], void *userdata) {
2142 _cleanup_free_ char *unit = NULL;
2143 UnitFileChange *changes = NULL;
2144 unsigned n_changes = 0;
2145 int r;
2146
2147 assert(argc >= 2);
2148 assert(argv);
2149
2150 r = unit_name_mangle_with_suffix(argv[1], UNIT_NAME_NOGLOB, ".target", &unit);
2151 if (r < 0)
2152 return log_error_errno(r, "Failed to mangle unit name: %m");
2153
2154 if (install_client_side()) {
2155 r = unit_file_set_default(arg_scope, UNIT_FILE_FORCE, arg_root, unit, &changes, &n_changes);
2156 unit_file_dump_changes(r, "set default", changes, n_changes, arg_quiet);
2157
2158 if (r > 0)
2159 r = 0;
2160 } else {
2161 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2162 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2163 sd_bus *bus;
2164
2165 polkit_agent_open_maybe();
2166
2167 r = acquire_bus(BUS_MANAGER, &bus);
2168 if (r < 0)
2169 return r;
2170
2171 r = sd_bus_call_method(
2172 bus,
2173 "org.freedesktop.systemd1",
2174 "/org/freedesktop/systemd1",
2175 "org.freedesktop.systemd1.Manager",
2176 "SetDefaultTarget",
2177 &error,
2178 &reply,
2179 "sb", unit, 1);
2180 if (r < 0)
2181 return log_error_errno(r, "Failed to set default target: %s", bus_error_message(&error, r));
2182
2183 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
2184 if (r < 0)
2185 goto finish;
2186
2187 /* Try to reload if enabled */
2188 if (!arg_no_reload)
2189 r = daemon_reload(argc, argv, userdata);
2190 else
2191 r = 0;
2192 }
2193
2194 finish:
2195 unit_file_changes_free(changes, n_changes);
2196
2197 return r;
2198 }
2199
2200 static int output_waiting_jobs(sd_bus *bus, uint32_t id, const char *method, const char *prefix) {
2201 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2202 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2203 const char *name, *type, *state, *job_path, *unit_path;
2204 uint32_t other_id;
2205 int r;
2206
2207 assert(bus);
2208
2209 r = sd_bus_call_method(
2210 bus,
2211 "org.freedesktop.systemd1",
2212 "/org/freedesktop/systemd1",
2213 "org.freedesktop.systemd1.Manager",
2214 method,
2215 &error,
2216 &reply,
2217 "u", id);
2218 if (r < 0)
2219 return log_debug_errno(r, "Failed to get waiting jobs for job %" PRIu32, id);
2220
2221 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
2222 if (r < 0)
2223 return bus_log_parse_error(r);
2224
2225 while ((r = sd_bus_message_read(reply, "(usssoo)", &other_id, &name, &type, &state, &job_path, &unit_path)) > 0)
2226 printf("%s %u (%s/%s)\n", prefix, other_id, name, type);
2227 if (r < 0)
2228 return bus_log_parse_error(r);
2229
2230 r = sd_bus_message_exit_container(reply);
2231 if (r < 0)
2232 return bus_log_parse_error(r);
2233
2234 return 0;
2235 }
2236
2237 struct job_info {
2238 uint32_t id;
2239 const char *name, *type, *state;
2240 };
2241
2242 static void output_jobs_list(sd_bus *bus, const struct job_info* jobs, unsigned n, bool skipped) {
2243 unsigned id_len, unit_len, type_len, state_len;
2244 const struct job_info *j;
2245 const char *on, *off;
2246 bool shorten = false;
2247
2248 assert(n == 0 || jobs);
2249
2250 if (n == 0) {
2251 if (!arg_no_legend) {
2252 on = ansi_highlight_green();
2253 off = ansi_normal();
2254
2255 printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off);
2256 }
2257 return;
2258 }
2259
2260 pager_open(arg_no_pager, false);
2261
2262 id_len = STRLEN("JOB");
2263 unit_len = STRLEN("UNIT");
2264 type_len = STRLEN("TYPE");
2265 state_len = STRLEN("STATE");
2266
2267 for (j = jobs; j < jobs + n; j++) {
2268 uint32_t id = j->id;
2269 assert(j->name && j->type && j->state);
2270
2271 id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
2272 unit_len = MAX(unit_len, strlen(j->name));
2273 type_len = MAX(type_len, strlen(j->type));
2274 state_len = MAX(state_len, strlen(j->state));
2275 }
2276
2277 if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
2278 unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
2279 shorten = true;
2280 }
2281
2282 if (!arg_no_legend)
2283 printf("%*s %-*s %-*s %-*s\n",
2284 id_len, "JOB",
2285 unit_len, "UNIT",
2286 type_len, "TYPE",
2287 state_len, "STATE");
2288
2289 for (j = jobs; j < jobs + n; j++) {
2290 _cleanup_free_ char *e = NULL;
2291
2292 if (streq(j->state, "running")) {
2293 on = ansi_highlight();
2294 off = ansi_normal();
2295 } else
2296 on = off = "";
2297
2298 e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
2299 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
2300 id_len, j->id,
2301 on, unit_len, e ? e : j->name, off,
2302 type_len, j->type,
2303 on, state_len, j->state, off);
2304
2305 if (arg_jobs_after)
2306 output_waiting_jobs(bus, j->id, "GetJobAfter", "\twaiting for job");
2307 if (arg_jobs_before)
2308 output_waiting_jobs(bus, j->id, "GetJobBefore", "\tblocking job");
2309 }
2310
2311 if (!arg_no_legend) {
2312 on = ansi_highlight();
2313 off = ansi_normal();
2314
2315 printf("\n%s%u jobs listed%s.\n", on, n, off);
2316 }
2317 }
2318
2319 static bool output_show_job(struct job_info *job, char **patterns) {
2320 return strv_fnmatch_or_empty(patterns, job->name, FNM_NOESCAPE);
2321 }
2322
2323 static int list_jobs(int argc, char *argv[], void *userdata) {
2324 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2325 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2326 const char *name, *type, *state, *job_path, *unit_path;
2327 _cleanup_free_ struct job_info *jobs = NULL;
2328 size_t size = 0;
2329 unsigned c = 0;
2330 sd_bus *bus;
2331 uint32_t id;
2332 int r;
2333 bool skipped = false;
2334
2335 r = acquire_bus(BUS_MANAGER, &bus);
2336 if (r < 0)
2337 return r;
2338
2339 r = sd_bus_call_method(
2340 bus,
2341 "org.freedesktop.systemd1",
2342 "/org/freedesktop/systemd1",
2343 "org.freedesktop.systemd1.Manager",
2344 "ListJobs",
2345 &error,
2346 &reply,
2347 NULL);
2348 if (r < 0)
2349 return log_error_errno(r, "Failed to list jobs: %s", bus_error_message(&error, r));
2350
2351 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
2352 if (r < 0)
2353 return bus_log_parse_error(r);
2354
2355 while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, &job_path, &unit_path)) > 0) {
2356 struct job_info job = { id, name, type, state };
2357
2358 if (!output_show_job(&job, strv_skip(argv, 1))) {
2359 skipped = true;
2360 continue;
2361 }
2362
2363 if (!GREEDY_REALLOC(jobs, size, c + 1))
2364 return log_oom();
2365
2366 jobs[c++] = job;
2367 }
2368 if (r < 0)
2369 return bus_log_parse_error(r);
2370
2371 r = sd_bus_message_exit_container(reply);
2372 if (r < 0)
2373 return bus_log_parse_error(r);
2374
2375 pager_open(arg_no_pager, false);
2376
2377 output_jobs_list(bus, jobs, c, skipped);
2378 return 0;
2379 }
2380
2381 static int cancel_job(int argc, char *argv[], void *userdata) {
2382 sd_bus *bus;
2383 char **name;
2384 int r = 0;
2385
2386 if (argc <= 1)
2387 return trivial_method(argc, argv, userdata);
2388
2389 r = acquire_bus(BUS_MANAGER, &bus);
2390 if (r < 0)
2391 return r;
2392
2393 polkit_agent_open_maybe();
2394
2395 STRV_FOREACH(name, strv_skip(argv, 1)) {
2396 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2397 uint32_t id;
2398 int q;
2399
2400 q = safe_atou32(*name, &id);
2401 if (q < 0)
2402 return log_error_errno(q, "Failed to parse job id \"%s\": %m", *name);
2403
2404 q = sd_bus_call_method(
2405 bus,
2406 "org.freedesktop.systemd1",
2407 "/org/freedesktop/systemd1",
2408 "org.freedesktop.systemd1.Manager",
2409 "CancelJob",
2410 &error,
2411 NULL,
2412 "u", id);
2413 if (q < 0) {
2414 log_error_errno(q, "Failed to cancel job %"PRIu32": %s", id, bus_error_message(&error, q));
2415 if (r == 0)
2416 r = q;
2417 }
2418 }
2419
2420 return r;
2421 }
2422
2423 static int need_daemon_reload(sd_bus *bus, const char *unit) {
2424 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2425 const char *path;
2426 int b, r;
2427
2428 /* We ignore all errors here, since this is used to show a
2429 * warning only */
2430
2431 /* We don't use unit_dbus_path_from_name() directly since we
2432 * don't want to load the unit if it isn't loaded. */
2433
2434 r = sd_bus_call_method(
2435 bus,
2436 "org.freedesktop.systemd1",
2437 "/org/freedesktop/systemd1",
2438 "org.freedesktop.systemd1.Manager",
2439 "GetUnit",
2440 NULL,
2441 &reply,
2442 "s", unit);
2443 if (r < 0)
2444 return r;
2445
2446 r = sd_bus_message_read(reply, "o", &path);
2447 if (r < 0)
2448 return r;
2449
2450 r = sd_bus_get_property_trivial(
2451 bus,
2452 "org.freedesktop.systemd1",
2453 path,
2454 "org.freedesktop.systemd1.Unit",
2455 "NeedDaemonReload",
2456 NULL,
2457 'b', &b);
2458 if (r < 0)
2459 return r;
2460
2461 return b;
2462 }
2463
2464 static void warn_unit_file_changed(const char *name) {
2465 assert(name);
2466
2467 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.",
2468 ansi_highlight_red(),
2469 ansi_normal(),
2470 name,
2471 arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
2472 }
2473
2474 static int unit_file_find_path(LookupPaths *lp, const char *unit_name, char **unit_path) {
2475 char **p;
2476
2477 assert(lp);
2478 assert(unit_name);
2479
2480 STRV_FOREACH(p, lp->search_path) {
2481 _cleanup_free_ char *path = NULL, *lpath = NULL;
2482 int r;
2483
2484 path = path_join(NULL, *p, unit_name);
2485 if (!path)
2486 return log_oom();
2487
2488 r = chase_symlinks(path, arg_root, 0, &lpath);
2489 if (r == -ENOENT)
2490 continue;
2491 if (r == -ENOMEM)
2492 return log_oom();
2493 if (r < 0)
2494 return log_error_errno(r, "Failed to access path '%s': %m", path);
2495
2496 if (unit_path) {
2497 *unit_path = lpath;
2498 lpath = NULL;
2499 }
2500 return 1;
2501 }
2502
2503 return 0;
2504 }
2505
2506 static int unit_find_template_path(
2507 const char *unit_name,
2508 LookupPaths *lp,
2509 char **fragment_path,
2510 char **template) {
2511
2512 _cleanup_free_ char *_template = NULL;
2513 int r;
2514
2515 /* Returns 1 if a fragment was found, 0 if not found, negative on error. */
2516
2517 r = unit_file_find_path(lp, unit_name, fragment_path);
2518 if (r != 0)
2519 return r; /* error or found a real unit */
2520
2521 r = unit_name_template(unit_name, &_template);
2522 if (r == -EINVAL)
2523 return 0; /* not a template, does not exist */
2524 if (r < 0)
2525 return log_error_errno(r, "Failed to determine template name: %m");
2526
2527 r = unit_file_find_path(lp, _template, fragment_path);
2528 if (r < 0)
2529 return r;
2530
2531 if (template) {
2532 *template = _template;
2533 _template = NULL;
2534 }
2535 return r;
2536 }
2537
2538 static int unit_find_paths(
2539 sd_bus *bus,
2540 const char *unit_name,
2541 LookupPaths *lp,
2542 char **fragment_path,
2543 char ***dropin_paths) {
2544
2545 _cleanup_free_ char *path = NULL;
2546 _cleanup_strv_free_ char **dropins = NULL;
2547 int r;
2548
2549 /**
2550 * Finds where the unit is defined on disk. Returns 0 if the unit
2551 * is not found. Returns 1 if it is found, and sets
2552 * - the path to the unit in *path, if it exists on disk,
2553 * - and a strv of existing drop-ins in *dropins,
2554 * if the arg is not NULL and any dropins were found.
2555 */
2556
2557 assert(unit_name);
2558 assert(fragment_path);
2559 assert(lp);
2560
2561 if (!install_client_side() && !unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
2562 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2563 _cleanup_free_ char *unit = NULL;
2564
2565 unit = unit_dbus_path_from_name(unit_name);
2566 if (!unit)
2567 return log_oom();
2568
2569 r = sd_bus_get_property_string(
2570 bus,
2571 "org.freedesktop.systemd1",
2572 unit,
2573 "org.freedesktop.systemd1.Unit",
2574 "FragmentPath",
2575 &error,
2576 &path);
2577 if (r < 0)
2578 return log_error_errno(r, "Failed to get FragmentPath: %s", bus_error_message(&error, r));
2579
2580 if (dropin_paths) {
2581 r = sd_bus_get_property_strv(
2582 bus,
2583 "org.freedesktop.systemd1",
2584 unit,
2585 "org.freedesktop.systemd1.Unit",
2586 "DropInPaths",
2587 &error,
2588 &dropins);
2589 if (r < 0)
2590 return log_error_errno(r, "Failed to get DropInPaths: %s", bus_error_message(&error, r));
2591 }
2592 } else {
2593 _cleanup_set_free_ Set *names = NULL;
2594 _cleanup_free_ char *template = NULL;
2595
2596 names = set_new(NULL);
2597 if (!names)
2598 return log_oom();
2599
2600 r = unit_find_template_path(unit_name, lp, &path, &template);
2601 if (r < 0)
2602 return r;
2603
2604 if (r > 0)
2605 /* We found the unit file. If we followed symlinks, this name might be
2606 * different then the unit_name with started with. Look for dropins matching
2607 * that "final" name. */
2608 r = set_put(names, basename(path));
2609 else if (!template)
2610 /* No unit file, let's look for dropins matching the original name.
2611 * systemd has fairly complicated rules (based on unit type and provenience),
2612 * which units are allowed not to have the main unit file. We err on the
2613 * side of including too many files, and always try to load dropins. */
2614 r = set_put(names, unit_name);
2615 else
2616 /* The cases where we allow a unit to exist without the main file are
2617 * never valid for templates. Don't try to load dropins in this case. */
2618 goto not_found;
2619
2620 if (r < 0)
2621 return log_error_errno(r, "Failed to add unit name: %m");
2622
2623 if (dropin_paths) {
2624 r = unit_file_find_dropin_conf_paths(arg_root, lp->search_path,
2625 NULL, names, &dropins);
2626 if (r < 0)
2627 return r;
2628 }
2629 }
2630
2631 r = 0;
2632
2633 if (!isempty(path)) {
2634 *fragment_path = path;
2635 path = NULL;
2636 r = 1;
2637 }
2638
2639 if (dropin_paths && !strv_isempty(dropins)) {
2640 *dropin_paths = dropins;
2641 dropins = NULL;
2642 r = 1;
2643 }
2644 not_found:
2645 if (r == 0 && !arg_force)
2646 log_error("No files found for %s.", unit_name);
2647
2648 return r;
2649 }
2650
2651 static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state) {
2652 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2653 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2654 _cleanup_free_ char *buf = NULL;
2655 UnitActiveState state;
2656 const char *path;
2657 int r;
2658
2659 assert(name);
2660 assert(active_state);
2661
2662 /* We don't use unit_dbus_path_from_name() directly since we don't want to load the unit unnecessarily, if it
2663 * isn't loaded. */
2664 r = sd_bus_call_method(
2665 bus,
2666 "org.freedesktop.systemd1",
2667 "/org/freedesktop/systemd1",
2668 "org.freedesktop.systemd1.Manager",
2669 "GetUnit",
2670 &error,
2671 &reply,
2672 "s", name);
2673 if (r < 0) {
2674 if (!sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2675 return log_error_errno(r, "Failed to retrieve unit: %s", bus_error_message(&error, r));
2676
2677 /* The unit is currently not loaded, hence say it's "inactive", since all units that aren't loaded are
2678 * considered inactive. */
2679 state = UNIT_INACTIVE;
2680
2681 } else {
2682 r = sd_bus_message_read(reply, "o", &path);
2683 if (r < 0)
2684 return bus_log_parse_error(r);
2685
2686 r = sd_bus_get_property_string(
2687 bus,
2688 "org.freedesktop.systemd1",
2689 path,
2690 "org.freedesktop.systemd1.Unit",
2691 "ActiveState",
2692 &error,
2693 &buf);
2694 if (r < 0)
2695 return log_error_errno(r, "Failed to retrieve unit state: %s", bus_error_message(&error, r));
2696
2697 state = unit_active_state_from_string(buf);
2698 if (state == _UNIT_ACTIVE_STATE_INVALID) {
2699 log_error("Invalid unit state '%s' for: %s", buf, name);
2700 return -EINVAL;
2701 }
2702 }
2703
2704 *active_state = state;
2705 return 0;
2706 }
2707
2708 static int check_triggering_units(
2709 sd_bus *bus,
2710 const char *name) {
2711
2712 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2713 _cleanup_free_ char *path = NULL, *n = NULL, *load_state = NULL;
2714 _cleanup_strv_free_ char **triggered_by = NULL;
2715 bool print_warning_label = true;
2716 UnitActiveState active_state;
2717 char **i;
2718 int r;
2719
2720 r = unit_name_mangle(name, UNIT_NAME_NOGLOB, &n);
2721 if (r < 0)
2722 return log_error_errno(r, "Failed to mangle unit name: %m");
2723
2724 path = unit_dbus_path_from_name(n);
2725 if (!path)
2726 return log_oom();
2727
2728 r = sd_bus_get_property_string(
2729 bus,
2730 "org.freedesktop.systemd1",
2731 path,
2732 "org.freedesktop.systemd1.Unit",
2733 "LoadState",
2734 &error,
2735 &load_state);
2736 if (r < 0)
2737 return log_error_errno(r, "Failed to get load state of %s: %s", n, bus_error_message(&error, r));
2738
2739 if (streq(load_state, "masked"))
2740 return 0;
2741
2742 r = sd_bus_get_property_strv(
2743 bus,
2744 "org.freedesktop.systemd1",
2745 path,
2746 "org.freedesktop.systemd1.Unit",
2747 "TriggeredBy",
2748 &error,
2749 &triggered_by);
2750 if (r < 0)
2751 return log_error_errno(r, "Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
2752
2753 STRV_FOREACH(i, triggered_by) {
2754 r = get_state_one_unit(bus, *i, &active_state);
2755 if (r < 0)
2756 return r;
2757
2758 if (!IN_SET(active_state, UNIT_ACTIVE, UNIT_RELOADING))
2759 continue;
2760
2761 if (print_warning_label) {
2762 log_warning("Warning: Stopping %s, but it can still be activated by:", n);
2763 print_warning_label = false;
2764 }
2765
2766 log_warning(" %s", *i);
2767 }
2768
2769 return 0;
2770 }
2771
2772 static const struct {
2773 const char *verb;
2774 const char *method;
2775 } unit_actions[] = {
2776 { "start", "StartUnit" },
2777 { "stop", "StopUnit" },
2778 { "condstop", "StopUnit" },
2779 { "reload", "ReloadUnit" },
2780 { "restart", "RestartUnit" },
2781 { "try-restart", "TryRestartUnit" },
2782 { "condrestart", "TryRestartUnit" },
2783 { "reload-or-restart", "ReloadOrRestartUnit" },
2784 { "try-reload-or-restart", "ReloadOrTryRestartUnit" },
2785 { "reload-or-try-restart", "ReloadOrTryRestartUnit" },
2786 { "condreload", "ReloadOrTryRestartUnit" },
2787 { "force-reload", "ReloadOrTryRestartUnit" }
2788 };
2789
2790 static const char *verb_to_method(const char *verb) {
2791 uint i;
2792
2793 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2794 if (streq_ptr(unit_actions[i].verb, verb))
2795 return unit_actions[i].method;
2796
2797 return "StartUnit";
2798 }
2799
2800 static const char *method_to_verb(const char *method) {
2801 uint i;
2802
2803 for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2804 if (streq_ptr(unit_actions[i].method, method))
2805 return unit_actions[i].verb;
2806
2807 return "n/a";
2808 }
2809
2810 typedef struct {
2811 sd_bus_slot *match;
2812 sd_event *event;
2813 Set *unit_paths;
2814 bool any_failed;
2815 } WaitContext;
2816
2817 static void wait_context_free(WaitContext *c) {
2818 c->match = sd_bus_slot_unref(c->match);
2819 c->event = sd_event_unref(c->event);
2820 c->unit_paths = set_free_free(c->unit_paths);
2821 }
2822
2823 static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
2824 WaitContext *c = userdata;
2825 const char *path;
2826 int r;
2827
2828 path = sd_bus_message_get_path(m);
2829 if (!set_contains(c->unit_paths, path))
2830 return 0;
2831
2832 /* Check if ActiveState changed to inactive/failed */
2833 /* (s interface, a{sv} changed_properties, as invalidated_properties) */
2834 r = sd_bus_message_skip(m, "s");
2835 if (r < 0)
2836 return bus_log_parse_error(r);
2837
2838 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}");
2839 if (r < 0)
2840 return bus_log_parse_error(r);
2841
2842 while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
2843 const char *s;
2844
2845 r = sd_bus_message_read(m, "s", &s);
2846 if (r < 0)
2847 return bus_log_parse_error(r);
2848
2849 if (streq(s, "ActiveState")) {
2850 bool is_failed;
2851
2852 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, "s");
2853 if (r < 0)
2854 return bus_log_parse_error(r);
2855
2856 r = sd_bus_message_read(m, "s", &s);
2857 if (r < 0)
2858 return bus_log_parse_error(r);
2859
2860 is_failed = streq(s, "failed");
2861 if (streq(s, "inactive") || is_failed) {
2862 log_debug("%s became %s, dropping from --wait tracking", path, s);
2863 free(set_remove(c->unit_paths, path));
2864 c->any_failed = c->any_failed || is_failed;
2865 } else
2866 log_debug("ActiveState on %s changed to %s", path, s);
2867
2868 break; /* no need to dissect the rest of the message */
2869 } else {
2870 /* other property */
2871 r = sd_bus_message_skip(m, "v");
2872 if (r < 0)
2873 return bus_log_parse_error(r);
2874 }
2875 r = sd_bus_message_exit_container(m);
2876 if (r < 0)
2877 return bus_log_parse_error(r);
2878 }
2879 if (r < 0)
2880 return bus_log_parse_error(r);
2881
2882 if (set_isempty(c->unit_paths))
2883 sd_event_exit(c->event, EXIT_SUCCESS);
2884
2885 return 0;
2886 }
2887
2888 static int start_unit_one(
2889 sd_bus *bus,
2890 const char *method,
2891 const char *name,
2892 const char *mode,
2893 sd_bus_error *error,
2894 BusWaitForJobs *w,
2895 WaitContext *wait_context) {
2896
2897 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2898 const char *path;
2899 int r;
2900
2901 assert(method);
2902 assert(name);
2903 assert(mode);
2904 assert(error);
2905
2906 if (wait_context) {
2907 _cleanup_free_ char *unit_path = NULL;
2908
2909 log_debug("Watching for property changes of %s", name);
2910 r = sd_bus_call_method(
2911 bus,
2912 "org.freedesktop.systemd1",
2913 "/org/freedesktop/systemd1",
2914 "org.freedesktop.systemd1.Manager",
2915 "RefUnit",
2916 error,
2917 NULL,
2918 "s", name);
2919 if (r < 0)
2920 return log_error_errno(r, "Failed to RefUnit %s: %s", name, bus_error_message(error, r));
2921
2922 unit_path = unit_dbus_path_from_name(name);
2923 if (!unit_path)
2924 return log_oom();
2925
2926 r = set_put_strdup(wait_context->unit_paths, unit_path);
2927 if (r < 0)
2928 return log_error_errno(r, "Failed to add unit path %s to set: %m", unit_path);
2929
2930 r = sd_bus_match_signal_async(bus,
2931 &wait_context->match,
2932 NULL,
2933 unit_path,
2934 "org.freedesktop.DBus.Properties",
2935 "PropertiesChanged",
2936 on_properties_changed, NULL, wait_context);
2937 if (r < 0)
2938 return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m");
2939 }
2940
2941 log_debug("%s manager for %s on %s, %s",
2942 arg_dry_run ? "Would call" : "Calling",
2943 method, name, mode);
2944 if (arg_dry_run)
2945 return 0;
2946
2947 r = sd_bus_call_method(
2948 bus,
2949 "org.freedesktop.systemd1",
2950 "/org/freedesktop/systemd1",
2951 "org.freedesktop.systemd1.Manager",
2952 method,
2953 error,
2954 &reply,
2955 "ss", name, mode);
2956 if (r < 0) {
2957 const char *verb;
2958
2959 /* There's always a fallback possible for legacy actions. */
2960 if (arg_action != ACTION_SYSTEMCTL)
2961 return r;
2962
2963 verb = method_to_verb(method);
2964
2965 log_error("Failed to %s %s: %s", verb, name, bus_error_message(error, r));
2966
2967 if (!sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) &&
2968 !sd_bus_error_has_name(error, BUS_ERROR_UNIT_MASKED))
2969 log_error("See %s logs and 'systemctl%s status%s %s' for details.",
2970 arg_scope == UNIT_FILE_SYSTEM ? "system" : "user",
2971 arg_scope == UNIT_FILE_SYSTEM ? "" : " --user",
2972 name[0] == '-' ? " --" : "",
2973 name);
2974
2975 return r;
2976 }
2977
2978 r = sd_bus_message_read(reply, "o", &path);
2979 if (r < 0)
2980 return bus_log_parse_error(r);
2981
2982 if (need_daemon_reload(bus, name) > 0)
2983 warn_unit_file_changed(name);
2984
2985 if (w) {
2986 log_debug("Adding %s to the set", path);
2987 r = bus_wait_for_jobs_add(w, path);
2988 if (r < 0)
2989 return log_oom();
2990 }
2991
2992 return 0;
2993 }
2994
2995 static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) {
2996 _cleanup_strv_free_ char **mangled = NULL, **globs = NULL;
2997 char **name;
2998 int r, i;
2999
3000 assert(bus);
3001 assert(ret);
3002
3003 STRV_FOREACH(name, names) {
3004 char *t;
3005
3006 if (suffix)
3007 r = unit_name_mangle_with_suffix(*name, UNIT_NAME_GLOB, suffix, &t);
3008 else
3009 r = unit_name_mangle(*name, UNIT_NAME_GLOB, &t);
3010 if (r < 0)
3011 return log_error_errno(r, "Failed to mangle name: %m");
3012
3013 if (string_is_glob(t))
3014 r = strv_consume(&globs, t);
3015 else
3016 r = strv_consume(&mangled, t);
3017 if (r < 0)
3018 return log_oom();
3019 }
3020
3021 /* Query the manager only if any of the names are a glob, since
3022 * this is fairly expensive */
3023 if (!strv_isempty(globs)) {
3024 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
3025 _cleanup_free_ UnitInfo *unit_infos = NULL;
3026 size_t allocated, n;
3027
3028 r = get_unit_list(bus, NULL, globs, &unit_infos, 0, &reply);
3029 if (r < 0)
3030 return r;
3031
3032 n = strv_length(mangled);
3033 allocated = n + 1;
3034
3035 for (i = 0; i < r; i++) {
3036 if (!GREEDY_REALLOC(mangled, allocated, n+2))
3037 return log_oom();
3038
3039 mangled[n] = strdup(unit_infos[i].id);
3040 if (!mangled[n])
3041 return log_oom();
3042
3043 mangled[++n] = NULL;
3044 }
3045 }
3046
3047 *ret = mangled;
3048 mangled = NULL; /* do not free */
3049
3050 return 0;
3051 }
3052
3053 static const struct {
3054 const char *target;
3055 const char *verb;
3056 const char *mode;
3057 } action_table[_ACTION_MAX] = {
3058 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
3059 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
3060 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
3061 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
3062 [ACTION_RUNLEVEL2] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
3063 [ACTION_RUNLEVEL3] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
3064 [ACTION_RUNLEVEL4] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
3065 [ACTION_RUNLEVEL5] = { SPECIAL_GRAPHICAL_TARGET, NULL, "isolate" },
3066 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
3067 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
3068 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
3069 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
3070 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
3071 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
3072 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
3073 };
3074
3075 static enum action verb_to_action(const char *verb) {
3076 enum action i;
3077
3078 for (i = 0; i < _ACTION_MAX; i++)
3079 if (streq_ptr(action_table[i].verb, verb))
3080 return i;
3081
3082 return _ACTION_INVALID;
3083 }
3084
3085 static int start_unit(int argc, char *argv[], void *userdata) {
3086 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
3087 const char *method, *mode, *one_name, *suffix = NULL;
3088 _cleanup_strv_free_ char **names = NULL;
3089 sd_bus *bus;
3090 _cleanup_(wait_context_free) WaitContext wait_context = {};
3091 char **name;
3092 int r = 0;
3093
3094 if (arg_wait && !STR_IN_SET(argv[0], "start", "restart")) {
3095 log_error("--wait may only be used with the 'start' or 'restart' commands.");
3096 return -EINVAL;
3097 }
3098
3099 /* we cannot do sender tracking on the private bus, so we need the full
3100 * one for RefUnit to implement --wait */
3101 r = acquire_bus(arg_wait ? BUS_FULL : BUS_MANAGER, &bus);
3102 if (r < 0)
3103 return r;
3104
3105 ask_password_agent_open_if_enabled();
3106 polkit_agent_open_maybe();
3107
3108 if (arg_action == ACTION_SYSTEMCTL) {
3109 enum action action;
3110
3111 action = verb_to_action(argv[0]);
3112
3113 if (action != _ACTION_INVALID) {
3114 method = "StartUnit";
3115 mode = action_table[action].mode;
3116 one_name = action_table[action].target;
3117 } else {
3118 if (streq(argv[0], "isolate")) {
3119 method = "StartUnit";
3120 mode = "isolate";
3121
3122 suffix = ".target";
3123 } else {
3124 method = verb_to_method(argv[0]);
3125 mode = arg_job_mode;
3126 }
3127 one_name = NULL;
3128 }
3129 } else {
3130 assert(arg_action >= 0 && arg_action < _ACTION_MAX);
3131 assert(action_table[arg_action].target);
3132 assert(action_table[arg_action].mode);
3133
3134 method = "StartUnit";
3135 mode = action_table[arg_action].mode;
3136 one_name = action_table[arg_action].target;
3137 }
3138
3139 if (one_name)
3140 names = strv_new(one_name, NULL);
3141 else {
3142 r = expand_names(bus, strv_skip(argv, 1), suffix, &names);
3143 if (r < 0)
3144 return log_error_errno(r, "Failed to expand names: %m");
3145 }
3146
3147 if (!arg_no_block) {
3148 r = bus_wait_for_jobs_new(bus, &w);
3149 if (r < 0)
3150 return log_error_errno(r, "Could not watch jobs: %m");
3151 }
3152
3153 if (arg_wait) {
3154 wait_context.unit_paths = set_new(&string_hash_ops);
3155 if (!wait_context.unit_paths)
3156 return log_oom();
3157
3158 r = sd_bus_call_method_async(
3159 bus,
3160 NULL,
3161 "org.freedesktop.systemd1",
3162 "/org/freedesktop/systemd1",
3163 "org.freedesktop.systemd1.Manager",
3164 "Subscribe",
3165 NULL, NULL,
3166 NULL);
3167 if (r < 0)
3168 return log_error_errno(r, "Failed to enable subscription: %m");
3169 r = sd_event_default(&wait_context.event);
3170 if (r < 0)
3171 return log_error_errno(r, "Failed to allocate event loop: %m");
3172 r = sd_bus_attach_event(bus, wait_context.event, 0);
3173 if (r < 0)
3174 return log_error_errno(r, "Failed to attach bus to event loop: %m");
3175 }
3176
3177 STRV_FOREACH(name, names) {
3178 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3179 int q;
3180
3181 q = start_unit_one(bus, method, *name, mode, &error, w, arg_wait ? &wait_context : NULL);
3182 if (r >= 0 && q < 0)
3183 r = translate_bus_error_to_exit_status(q, &error);
3184 }
3185
3186 if (!arg_no_block) {
3187 int q, arg_count = 0;
3188 const char* extra_args[4] = {};
3189
3190 if (arg_scope != UNIT_FILE_SYSTEM)
3191 extra_args[arg_count++] = "--user";
3192
3193 assert(IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_REMOTE, BUS_TRANSPORT_MACHINE));
3194 if (arg_transport == BUS_TRANSPORT_REMOTE) {
3195 extra_args[arg_count++] = "-H";
3196 extra_args[arg_count++] = arg_host;
3197 } else if (arg_transport == BUS_TRANSPORT_MACHINE) {
3198 extra_args[arg_count++] = "-M";
3199 extra_args[arg_count++] = arg_host;
3200 }
3201
3202 q = bus_wait_for_jobs(w, arg_quiet, extra_args);
3203 if (q < 0)
3204 return q;
3205
3206 /* When stopping units, warn if they can still be triggered by
3207 * another active unit (socket, path, timer) */
3208 if (!arg_quiet && streq(method, "StopUnit"))
3209 STRV_FOREACH(name, names)
3210 check_triggering_units(bus, *name);
3211 }
3212
3213 if (r >= 0 && arg_wait) {
3214 int q;
3215 q = sd_event_loop(wait_context.event);
3216 if (q < 0)
3217 return log_error_errno(q, "Failed to run event loop: %m");
3218 if (wait_context.any_failed)
3219 r = EXIT_FAILURE;
3220 }
3221
3222 return r;
3223 }
3224
3225 #if ENABLE_LOGIND
3226 static int logind_set_wall_message(void) {
3227 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3228 sd_bus *bus;
3229 _cleanup_free_ char *m = NULL;
3230 int r;
3231
3232 r = acquire_bus(BUS_FULL, &bus);
3233 if (r < 0)
3234 return r;
3235
3236 m = strv_join(arg_wall, " ");
3237 if (!m)
3238 return log_oom();
3239
3240 r = sd_bus_call_method(
3241 bus,
3242 "org.freedesktop.login1",
3243 "/org/freedesktop/login1",
3244 "org.freedesktop.login1.Manager",
3245 "SetWallMessage",
3246 &error,
3247 NULL,
3248 "sb",
3249 m,
3250 !arg_no_wall);
3251
3252 if (r < 0)
3253 return log_warning_errno(r, "Failed to set wall message, ignoring: %s", bus_error_message(&error, r));
3254 return 0;
3255 }
3256 #endif
3257
3258 /* Ask systemd-logind, which might grant access to unprivileged users
3259 * through PolicyKit */
3260 static int logind_reboot(enum action a) {
3261 #if ENABLE_LOGIND
3262 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3263 const char *method, *description;
3264 sd_bus *bus;
3265 int r;
3266
3267 r = acquire_bus(BUS_FULL, &bus);
3268 if (r < 0)
3269 return r;
3270
3271 switch (a) {
3272
3273 case ACTION_POWEROFF:
3274 method = "PowerOff";
3275 description = "power off system";
3276 break;
3277
3278 case ACTION_REBOOT:
3279 method = "Reboot";
3280 description = "reboot system";
3281 break;
3282
3283 case ACTION_HALT:
3284 method = "Halt";
3285 description = "halt system";
3286 break;
3287
3288 case ACTION_SUSPEND:
3289 method = "Suspend";
3290 description = "suspend system";
3291 break;
3292
3293 case ACTION_HIBERNATE:
3294 method = "Hibernate";
3295 description = "hibernate system";
3296 break;
3297
3298 case ACTION_HYBRID_SLEEP:
3299 method = "HybridSleep";
3300 description = "put system into hybrid sleep";
3301 break;
3302
3303 default:
3304 return -EINVAL;
3305 }
3306
3307 polkit_agent_open_maybe();
3308 (void) logind_set_wall_message();
3309
3310 r = sd_bus_call_method(
3311 bus,
3312 "org.freedesktop.login1",
3313 "/org/freedesktop/login1",
3314 "org.freedesktop.login1.Manager",
3315 method,
3316 &error,
3317 NULL,
3318 "b", arg_ask_password);
3319 if (r < 0)
3320 return log_error_errno(r, "Failed to %s via logind: %s", description, bus_error_message(&error, r));
3321
3322 return 0;
3323 #else
3324 return -ENOSYS;
3325 #endif
3326 }
3327
3328 static int logind_check_inhibitors(enum action a) {
3329 #if ENABLE_LOGIND
3330 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
3331 _cleanup_strv_free_ char **sessions = NULL;
3332 const char *what, *who, *why, *mode;
3333 uint32_t uid, pid;
3334 sd_bus *bus;
3335 unsigned c = 0;
3336 char **s;
3337 int r;
3338
3339 if (arg_ignore_inhibitors || arg_force > 0)
3340 return 0;
3341
3342 if (arg_when > 0)
3343 return 0;
3344
3345 if (geteuid() == 0)
3346 return 0;
3347
3348 if (!on_tty())
3349 return 0;
3350
3351 if (arg_transport != BUS_TRANSPORT_LOCAL)
3352 return 0;
3353
3354 r = acquire_bus(BUS_FULL, &bus);
3355 if (r < 0)
3356 return r;
3357
3358 r = sd_bus_call_method(
3359 bus,
3360 "org.freedesktop.login1",
3361 "/org/freedesktop/login1",
3362 "org.freedesktop.login1.Manager",
3363 "ListInhibitors",
3364 NULL,
3365 &reply,
3366 NULL);
3367 if (r < 0)
3368 /* If logind is not around, then there are no inhibitors... */
3369 return 0;
3370
3371 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
3372 if (r < 0)
3373 return bus_log_parse_error(r);
3374
3375 while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
3376 _cleanup_free_ char *comm = NULL, *user = NULL;
3377 _cleanup_strv_free_ char **sv = NULL;
3378
3379 if (!streq(mode, "block"))
3380 continue;
3381
3382 sv = strv_split(what, ":");
3383 if (!sv)
3384 return log_oom();
3385
3386 if (!pid_is_valid((pid_t) pid)) {
3387 log_error("Invalid PID "PID_FMT".", (pid_t) pid);
3388 return -ERANGE;
3389 }
3390
3391 if (!strv_contains(sv,
3392 IN_SET(a,
3393 ACTION_HALT,
3394 ACTION_POWEROFF,
3395 ACTION_REBOOT,
3396 ACTION_KEXEC) ? "shutdown" : "sleep"))
3397 continue;
3398
3399 get_process_comm(pid, &comm);
3400 user = uid_to_name(uid);
3401
3402 log_warning("Operation inhibited by \"%s\" (PID "PID_FMT" \"%s\", user %s), reason is \"%s\".",
3403 who, (pid_t) pid, strna(comm), strna(user), why);
3404
3405 c++;
3406 }
3407 if (r < 0)
3408 return bus_log_parse_error(r);
3409
3410 r = sd_bus_message_exit_container(reply);
3411 if (r < 0)
3412 return bus_log_parse_error(r);
3413
3414 /* Check for current sessions */
3415 sd_get_sessions(&sessions);
3416 STRV_FOREACH(s, sessions) {
3417 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
3418
3419 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
3420 continue;
3421
3422 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
3423 continue;
3424
3425 if (sd_session_get_type(*s, &type) < 0 || !STR_IN_SET(type, "x11", "wayland", "tty", "mir"))
3426 continue;
3427
3428 sd_session_get_tty(*s, &tty);
3429 sd_session_get_seat(*s, &seat);
3430 sd_session_get_service(*s, &service);
3431 user = uid_to_name(uid);
3432
3433 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
3434 c++;
3435 }
3436
3437 if (c <= 0)
3438 return 0;
3439
3440 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
3441 action_table[a].verb);
3442
3443 return -EPERM;
3444 #else
3445 return 0;
3446 #endif
3447 }
3448
3449 static int logind_prepare_firmware_setup(void) {
3450 #if ENABLE_LOGIND
3451 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3452 sd_bus *bus;
3453 int r;
3454
3455 r = acquire_bus(BUS_FULL, &bus);
3456 if (r < 0)
3457 return r;
3458
3459 r = sd_bus_call_method(
3460 bus,
3461 "org.freedesktop.login1",
3462 "/org/freedesktop/login1",
3463 "org.freedesktop.login1.Manager",
3464 "SetRebootToFirmwareSetup",
3465 &error,
3466 NULL,
3467 "b", true);
3468 if (r < 0)
3469 return log_error_errno(r, "Cannot indicate to EFI to boot into setup mode: %s", bus_error_message(&error, r));
3470
3471 return 0;
3472 #else
3473 log_error("Cannot remotely indicate to EFI to boot into setup mode.");
3474 return -ENOSYS;
3475 #endif
3476 }
3477
3478 static int prepare_firmware_setup(void) {
3479 int r;
3480
3481 if (!arg_firmware_setup)
3482 return 0;
3483
3484 if (arg_transport == BUS_TRANSPORT_LOCAL) {
3485
3486 r = efi_set_reboot_to_firmware(true);
3487 if (r < 0)
3488 log_debug_errno(r, "Cannot indicate to EFI to boot into setup mode, will retry via logind: %m");
3489 else
3490 return r;
3491 }
3492
3493 return logind_prepare_firmware_setup();
3494 }
3495
3496 static int load_kexec_kernel(void) {
3497 _cleanup_(boot_config_free) BootConfig config = {};
3498 _cleanup_free_ char *where = NULL, *kernel = NULL, *initrd = NULL, *options = NULL;
3499 const BootEntry *e;
3500 pid_t pid;
3501 int r;
3502
3503 if (kexec_loaded()) {
3504 log_debug("Kexec kernel already loaded.");
3505 return 0;
3506 }
3507
3508 r = find_esp_and_warn(arg_esp_path, false, &where, NULL, NULL, NULL, NULL);
3509 if (r == -ENOKEY) /* find_esp_and_warn() doesn't warn about this case */
3510 return log_error_errno(r, "Cannot find the ESP partition mount point.");
3511 if (r < 0) /* But it logs about all these cases, hence don't log here again */
3512 return r;
3513
3514 r = boot_entries_load_config(where, &config);
3515 if (r < 0)
3516 return log_error_errno(r, "Failed to load bootspec config from \"%s/loader\": %m", where);
3517
3518 if (config.default_entry < 0) {
3519 log_error("No entry suitable as default, refusing to guess.");
3520 return -ENOENT;
3521 }
3522 e = &config.entries[config.default_entry];
3523
3524 if (strv_length(e->initrd) > 1) {
3525 log_error("Boot entry specifies multiple initrds, which is not supported currently.");
3526 return -EINVAL;
3527 }
3528
3529 kernel = path_join(NULL, where, e->kernel);
3530 if (!strv_isempty(e->initrd))
3531 initrd = path_join(NULL, where, *e->initrd);
3532 options = strv_join(e->options, " ");
3533 if (!options)
3534 return log_oom();
3535
3536 log_debug("%s kexec kernel %s initrd %s options \"%s\".",
3537 arg_dry_run ? "Would load" : "loading",
3538 kernel, initrd, options);
3539 if (arg_dry_run)
3540 return 0;
3541
3542 r = safe_fork("(kexec)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
3543 if (r < 0)
3544 return r;
3545 if (r == 0) {
3546
3547 const char* const args[] = {
3548 KEXEC,
3549 "--load", kernel,
3550 "--append", options,
3551 initrd ? "--initrd" : NULL, initrd,
3552 NULL };
3553
3554 /* Child */
3555 execv(args[0], (char * const *) args);
3556 _exit(EXIT_FAILURE);
3557 }
3558
3559 return wait_for_terminate_and_check("kexec", pid, WAIT_LOG);
3560 }
3561
3562 static int set_exit_code(uint8_t code) {
3563 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3564 sd_bus *bus;
3565 int r;
3566
3567 r = acquire_bus(BUS_MANAGER, &bus);
3568 if (r < 0)
3569 return r;
3570
3571 r = sd_bus_call_method(
3572 bus,
3573 "org.freedesktop.systemd1",
3574 "/org/freedesktop/systemd1",
3575 "org.freedesktop.systemd1.Manager",
3576 "SetExitCode",
3577 &error,
3578 NULL,
3579 "y", code);
3580 if (r < 0)
3581 return log_error_errno(r, "Failed to set exit code: %s", bus_error_message(&error, r));
3582
3583 return 0;
3584 }
3585
3586 static int start_special(int argc, char *argv[], void *userdata) {
3587 enum action a;
3588 int r;
3589 bool termination_action; /* an action that terminates the manager,
3590 * can be performed also by signal. */
3591
3592 assert(argv);
3593
3594 a = verb_to_action(argv[0]);
3595
3596 r = logind_check_inhibitors(a);
3597 if (r < 0)
3598 return r;
3599
3600 if (arg_force >= 2) {
3601 r = must_be_root();
3602 if (r < 0)
3603 return r;
3604 }
3605
3606 r = prepare_firmware_setup();
3607 if (r < 0)
3608 return r;
3609
3610 if (a == ACTION_REBOOT && argc > 1) {
3611 r = update_reboot_parameter_and_warn(argv[1]);
3612 if (r < 0)
3613 return r;
3614
3615 } else if (a == ACTION_KEXEC) {
3616 r = load_kexec_kernel();
3617 if (r < 0)
3618 return r;
3619
3620 } else if (a == ACTION_EXIT && argc > 1) {
3621 uint8_t code;
3622
3623 /* If the exit code is not given on the command line,
3624 * don't reset it to zero: just keep it as it might
3625 * have been set previously. */
3626
3627 r = safe_atou8(argv[1], &code);
3628 if (r < 0)
3629 return log_error_errno(r, "Invalid exit code.");
3630
3631 r = set_exit_code(code);
3632 if (r < 0)
3633 return r;
3634 }
3635
3636 termination_action = IN_SET(a,
3637 ACTION_HALT,
3638 ACTION_POWEROFF,
3639 ACTION_REBOOT);
3640 if (termination_action && arg_force >= 2)
3641 return halt_now(a);
3642
3643 if (arg_force >= 1 &&
3644 (termination_action || IN_SET(a, ACTION_KEXEC, ACTION_EXIT)))
3645 r = trivial_method(argc, argv, userdata);
3646 else {
3647 /* First try logind, to allow authentication with polkit */
3648 if (IN_SET(a,
3649 ACTION_POWEROFF,
3650 ACTION_REBOOT,
3651 ACTION_HALT,
3652 ACTION_SUSPEND,
3653 ACTION_HIBERNATE,
3654 ACTION_HYBRID_SLEEP)) {
3655
3656 r = logind_reboot(a);
3657 if (r >= 0)
3658 return r;
3659 if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS))
3660 /* requested operation is not supported or already in progress */
3661 return r;
3662
3663 /* On all other errors, try low-level operation. In order to minimize the difference between
3664 * operation with and without logind, we explicitly enable non-blocking mode for this, as
3665 * logind's shutdown operations are always non-blocking. */
3666
3667 arg_no_block = true;
3668
3669 } else if (IN_SET(a, ACTION_EXIT, ACTION_KEXEC))
3670 /* Since exit/kexec are so close in behaviour to power-off/reboot, let's also make them
3671 * asynchronous, in order to not confuse the user needlessly with unexpected behaviour. */
3672 arg_no_block = true;
3673
3674 r = start_unit(argc, argv, userdata);
3675 }
3676
3677 if (termination_action && arg_force < 2 &&
3678 IN_SET(r, -ENOENT, -ETIMEDOUT))
3679 log_notice("It is possible to perform action directly, see discussion of --force --force in man:systemctl(1).");
3680
3681 return r;
3682 }
3683
3684 static int start_system_special(int argc, char *argv[], void *userdata) {
3685 /* Like start_special above, but raises an error when running in user mode */
3686
3687 if (arg_scope != UNIT_FILE_SYSTEM) {
3688 log_error("Bad action for %s mode.",
3689 arg_scope == UNIT_FILE_GLOBAL ? "--global" : "--user");
3690 return -EINVAL;
3691 }
3692
3693 return start_special(argc, argv, userdata);
3694 }
3695
3696 static int check_unit_generic(int code, const UnitActiveState good_states[], int nb_states, char **args) {
3697 _cleanup_strv_free_ char **names = NULL;
3698 UnitActiveState active_state;
3699 sd_bus *bus;
3700 char **name;
3701 int r, i;
3702 bool found = false;
3703
3704 r = acquire_bus(BUS_MANAGER, &bus);
3705 if (r < 0)
3706 return r;
3707
3708 r = expand_names(bus, args, NULL, &names);
3709 if (r < 0)
3710 return log_error_errno(r, "Failed to expand names: %m");
3711
3712 STRV_FOREACH(name, names) {
3713 r = get_state_one_unit(bus, *name, &active_state);
3714 if (r < 0)
3715 return r;
3716
3717 if (!arg_quiet)
3718 puts(unit_active_state_to_string(active_state));
3719
3720 for (i = 0; i < nb_states; ++i)
3721 if (good_states[i] == active_state)
3722 found = true;
3723 }
3724
3725 /* use the given return code for the case that we won't find
3726 * any unit which matches the list */
3727 return found ? 0 : code;
3728 }
3729
3730 static int check_unit_active(int argc, char *argv[], void *userdata) {
3731 const UnitActiveState states[] = { UNIT_ACTIVE, UNIT_RELOADING };
3732 /* According to LSB: 3, "program is not running" */
3733 return check_unit_generic(EXIT_PROGRAM_NOT_RUNNING, states, ELEMENTSOF(states), strv_skip(argv, 1));
3734 }
3735
3736 static int check_unit_failed(int argc, char *argv[], void *userdata) {
3737 const UnitActiveState states[] = { UNIT_FAILED };
3738 return check_unit_generic(EXIT_PROGRAM_DEAD_AND_PID_EXISTS, states, ELEMENTSOF(states), strv_skip(argv, 1));
3739 }
3740
3741 static int kill_unit(int argc, char *argv[], void *userdata) {
3742 _cleanup_strv_free_ char **names = NULL;
3743 char *kill_who = NULL, **name;
3744 sd_bus *bus;
3745 int r, q;
3746
3747 r = acquire_bus(BUS_MANAGER, &bus);
3748 if (r < 0)
3749 return r;
3750
3751 polkit_agent_open_maybe();
3752
3753 if (!arg_kill_who)
3754 arg_kill_who = "all";
3755
3756 /* --fail was specified */
3757 if (streq(arg_job_mode, "fail"))
3758 kill_who = strjoina(arg_kill_who, "-fail");
3759
3760 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
3761 if (r < 0)
3762 return log_error_errno(r, "Failed to expand names: %m");
3763
3764 STRV_FOREACH(name, names) {
3765 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3766
3767 q = sd_bus_call_method(
3768 bus,
3769 "org.freedesktop.systemd1",
3770 "/org/freedesktop/systemd1",
3771 "org.freedesktop.systemd1.Manager",
3772 "KillUnit",
3773 &error,
3774 NULL,
3775 "ssi", *name, kill_who ? kill_who : arg_kill_who, arg_signal);
3776 if (q < 0) {
3777 log_error_errno(q, "Failed to kill unit %s: %s", *name, bus_error_message(&error, q));
3778 if (r == 0)
3779 r = q;
3780 }
3781 }
3782
3783 return r;
3784 }
3785
3786 typedef struct ExecStatusInfo {
3787 char *name;
3788
3789 char *path;
3790 char **argv;
3791
3792 bool ignore;
3793
3794 usec_t start_timestamp;
3795 usec_t exit_timestamp;
3796 pid_t pid;
3797 int code;
3798 int status;
3799
3800 LIST_FIELDS(struct ExecStatusInfo, exec);
3801 } ExecStatusInfo;
3802
3803 static void exec_status_info_free(ExecStatusInfo *i) {
3804 assert(i);
3805
3806 free(i->name);
3807 free(i->path);
3808 strv_free(i->argv);
3809 free(i);
3810 }
3811
3812 static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
3813 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
3814 const char *path;
3815 uint32_t pid;
3816 int32_t code, status;
3817 int ignore, r;
3818
3819 assert(m);
3820 assert(i);
3821
3822 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
3823 if (r < 0)
3824 return bus_log_parse_error(r);
3825 else if (r == 0)
3826 return 0;
3827
3828 r = sd_bus_message_read(m, "s", &path);
3829 if (r < 0)
3830 return bus_log_parse_error(r);
3831
3832 i->path = strdup(path);
3833 if (!i->path)
3834 return log_oom();
3835
3836 r = sd_bus_message_read_strv(m, &i->argv);
3837 if (r < 0)
3838 return bus_log_parse_error(r);
3839
3840 r = sd_bus_message_read(m,
3841 "bttttuii",
3842 &ignore,
3843 &start_timestamp, &start_timestamp_monotonic,
3844 &exit_timestamp, &exit_timestamp_monotonic,
3845 &pid,
3846 &code, &status);
3847 if (r < 0)
3848 return bus_log_parse_error(r);
3849
3850 i->ignore = ignore;
3851 i->start_timestamp = (usec_t) start_timestamp;
3852 i->exit_timestamp = (usec_t) exit_timestamp;
3853 i->pid = (pid_t) pid;
3854 i->code = code;
3855 i->status = status;
3856
3857 r = sd_bus_message_exit_container(m);
3858 if (r < 0)
3859 return bus_log_parse_error(r);
3860
3861 return 1;
3862 }
3863
3864 typedef struct UnitCondition {
3865 char *name;
3866 char *param;
3867 bool trigger;
3868 bool negate;
3869 int tristate;
3870
3871 LIST_FIELDS(struct UnitCondition, conditions);
3872 } UnitCondition;
3873
3874 static void unit_condition_free(UnitCondition *c) {
3875 if (!c)
3876 return;
3877
3878 free(c->name);
3879 free(c->param);
3880 free(c);
3881 }
3882
3883 DEFINE_TRIVIAL_CLEANUP_FUNC(UnitCondition*, unit_condition_free);
3884
3885 typedef struct UnitStatusInfo {
3886 const char *id;
3887 const char *load_state;
3888 const char *active_state;
3889 const char *sub_state;
3890 const char *unit_file_state;
3891 const char *unit_file_preset;
3892
3893 const char *description;
3894 const char *following;
3895
3896 char **documentation;
3897
3898 const char *fragment_path;
3899 const char *source_path;
3900 const char *control_group;
3901
3902 char **dropin_paths;
3903
3904 const char *load_error;
3905 const char *result;
3906
3907 usec_t inactive_exit_timestamp;
3908 usec_t inactive_exit_timestamp_monotonic;
3909 usec_t active_enter_timestamp;
3910 usec_t active_exit_timestamp;
3911 usec_t inactive_enter_timestamp;
3912
3913 bool need_daemon_reload;
3914 bool transient;
3915
3916 /* Service */
3917 pid_t main_pid;
3918 pid_t control_pid;
3919 const char *status_text;
3920 const char *pid_file;
3921 bool running:1;
3922 int status_errno;
3923
3924 usec_t start_timestamp;
3925 usec_t exit_timestamp;
3926
3927 int exit_code, exit_status;
3928
3929 usec_t condition_timestamp;
3930 bool condition_result;
3931 LIST_HEAD(UnitCondition, conditions);
3932
3933 usec_t assert_timestamp;
3934 bool assert_result;
3935 bool failed_assert_trigger;
3936 bool failed_assert_negate;
3937 const char *failed_assert;
3938 const char *failed_assert_parameter;
3939 usec_t next_elapse_real;
3940 usec_t next_elapse_monotonic;
3941
3942 /* Socket */
3943 unsigned n_accepted;
3944 unsigned n_connections;
3945 bool accept;
3946
3947 /* Pairs of type, path */
3948 char **listen;
3949
3950 /* Device */
3951 const char *sysfs_path;
3952
3953 /* Mount, Automount */
3954 const char *where;
3955
3956 /* Swap */
3957 const char *what;
3958
3959 /* CGroup */
3960 uint64_t memory_current;
3961 uint64_t memory_low;
3962 uint64_t memory_high;
3963 uint64_t memory_max;
3964 uint64_t memory_swap_max;
3965 uint64_t memory_limit;
3966 uint64_t cpu_usage_nsec;
3967 uint64_t tasks_current;
3968 uint64_t tasks_max;
3969
3970 uint64_t ip_ingress_bytes;
3971 uint64_t ip_egress_bytes;
3972
3973 LIST_HEAD(ExecStatusInfo, exec);
3974 } UnitStatusInfo;
3975
3976 static void unit_status_info_free(UnitStatusInfo *info) {
3977 ExecStatusInfo *p;
3978 UnitCondition *c;
3979
3980 strv_free(info->documentation);
3981 strv_free(info->dropin_paths);
3982 strv_free(info->listen);
3983
3984 while ((c = info->conditions)) {
3985 LIST_REMOVE(conditions, info->conditions, c);
3986 unit_condition_free(c);
3987 }
3988
3989 while ((p = info->exec)) {
3990 LIST_REMOVE(exec, info->exec, p);
3991 exec_status_info_free(p);
3992 }
3993 }
3994
3995 static void print_status_info(
3996 sd_bus *bus,
3997 UnitStatusInfo *i,
3998 bool *ellipsized) {
3999
4000 ExecStatusInfo *p;
4001 const char *active_on, *active_off, *on, *off, *ss;
4002 usec_t timestamp;
4003 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
4004 char since2[FORMAT_TIMESTAMP_MAX], *s2;
4005 const char *path;
4006 char **t, **t2;
4007 int r;
4008
4009 assert(i);
4010
4011 /* This shows pretty information about a unit. See
4012 * print_property() for a low-level property printer */
4013
4014 if (streq_ptr(i->active_state, "failed")) {
4015 active_on = ansi_highlight_red();
4016 active_off = ansi_normal();
4017 } else if (STRPTR_IN_SET(i->active_state, "active", "reloading")) {
4018 active_on = ansi_highlight_green();
4019 active_off = ansi_normal();
4020 } else
4021 active_on = active_off = "";
4022
4023 printf("%s%s%s %s", active_on, special_glyph(BLACK_CIRCLE), active_off, strna(i->id));
4024
4025 if (i->description && !streq_ptr(i->id, i->description))
4026 printf(" - %s", i->description);
4027
4028 printf("\n");
4029
4030 if (i->following)
4031 printf(" Follow: unit currently follows state of %s\n", i->following);
4032
4033 if (streq_ptr(i->load_state, "error")) {
4034 on = ansi_highlight_red();
4035 off = ansi_normal();
4036 } else
4037 on = off = "";
4038
4039 path = i->source_path ? i->source_path : i->fragment_path;
4040
4041 if (i->load_error != 0)
4042 printf(" Loaded: %s%s%s (Reason: %s)\n",
4043 on, strna(i->load_state), off, i->load_error);
4044 else if (path && !isempty(i->unit_file_state) && !isempty(i->unit_file_preset) &&
4045 !STR_IN_SET(i->unit_file_state, "generated", "transient"))
4046 printf(" Loaded: %s%s%s (%s; %s; vendor preset: %s)\n",
4047 on, strna(i->load_state), off, path, i->unit_file_state, i->unit_file_preset);
4048 else if (path && !isempty(i->unit_file_state))
4049 printf(" Loaded: %s%s%s (%s; %s)\n",
4050 on, strna(i->load_state), off, path, i->unit_file_state);
4051 else if (path)
4052 printf(" Loaded: %s%s%s (%s)\n",
4053 on, strna(i->load_state), off, path);
4054 else
4055 printf(" Loaded: %s%s%s\n",
4056 on, strna(i->load_state), off);
4057
4058 if (i->transient)
4059 printf("Transient: yes\n");
4060
4061 if (!strv_isempty(i->dropin_paths)) {
4062 _cleanup_free_ char *dir = NULL;
4063 bool last = false;
4064 char ** dropin;
4065
4066 STRV_FOREACH(dropin, i->dropin_paths) {
4067 if (! dir || last) {
4068 printf(dir ? " " : " Drop-In: ");
4069
4070 dir = mfree(dir);
4071
4072 dir = dirname_malloc(*dropin);
4073 if (!dir) {
4074 log_oom();
4075 return;
4076 }
4077
4078 printf("%s\n %s", dir,
4079 special_glyph(TREE_RIGHT));
4080 }
4081
4082 last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
4083
4084 printf("%s%s", basename(*dropin), last ? "\n" : ", ");
4085 }
4086 }
4087
4088 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
4089 if (ss)
4090 printf(" Active: %s%s (%s)%s",
4091 active_on, strna(i->active_state), ss, active_off);
4092 else
4093 printf(" Active: %s%s%s",
4094 active_on, strna(i->active_state), active_off);
4095
4096 if (!isempty(i->result) && !streq(i->result, "success"))
4097 printf(" (Result: %s)", i->result);
4098
4099 timestamp = STRPTR_IN_SET(i->active_state, "active", "reloading") ? i->active_enter_timestamp :
4100 STRPTR_IN_SET(i->active_state, "inactive", "failed") ? i->inactive_enter_timestamp :
4101 STRPTR_IN_SET(i->active_state, "activating") ? i->inactive_exit_timestamp :
4102 i->active_exit_timestamp;
4103
4104 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
4105 s2 = format_timestamp(since2, sizeof(since2), timestamp);
4106
4107 if (s1)
4108 printf(" since %s; %s\n", s2, s1);
4109 else if (s2)
4110 printf(" since %s\n", s2);
4111 else
4112 printf("\n");
4113
4114 if (endswith(i->id, ".timer")) {
4115 char tstamp1[FORMAT_TIMESTAMP_RELATIVE_MAX],
4116 tstamp2[FORMAT_TIMESTAMP_MAX];
4117 char *next_rel_time, *next_time;
4118 dual_timestamp nw, next = {i->next_elapse_real,
4119 i->next_elapse_monotonic};
4120 usec_t next_elapse;
4121
4122 printf(" Trigger: ");
4123
4124 dual_timestamp_get(&nw);
4125 next_elapse = calc_next_elapse(&nw, &next);
4126 next_rel_time = format_timestamp_relative(tstamp1,
4127 sizeof(tstamp1),
4128 next_elapse);
4129 next_time = format_timestamp(tstamp2,
4130 sizeof(tstamp2),
4131 next_elapse);
4132
4133 if (next_time && next_rel_time)
4134 printf("%s; %s\n", next_time, next_rel_time);
4135 else
4136 printf("n/a\n");
4137 }
4138
4139 if (!i->condition_result && i->condition_timestamp > 0) {
4140 UnitCondition *c;
4141 int n = 0;
4142
4143 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
4144 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
4145
4146 printf("Condition: start %scondition failed%s at %s%s%s\n",
4147 ansi_highlight_yellow(), ansi_normal(),
4148 s2, s1 ? "; " : "", strempty(s1));
4149
4150 LIST_FOREACH(conditions, c, i->conditions)
4151 if (c->tristate < 0)
4152 n++;
4153
4154 LIST_FOREACH(conditions, c, i->conditions)
4155 if (c->tristate < 0)
4156 printf(" %s %s=%s%s%s was not met\n",
4157 --n ? special_glyph(TREE_BRANCH) : special_glyph(TREE_RIGHT),
4158 c->name,
4159 c->trigger ? "|" : "",
4160 c->negate ? "!" : "",
4161 c->param);
4162 }
4163
4164 if (!i->assert_result && i->assert_timestamp > 0) {
4165 s1 = format_timestamp_relative(since1, sizeof(since1), i->assert_timestamp);
4166 s2 = format_timestamp(since2, sizeof(since2), i->assert_timestamp);
4167
4168 printf(" Assert: start %sassertion failed%s at %s%s%s\n",
4169 ansi_highlight_red(), ansi_normal(),
4170 s2, s1 ? "; " : "", strempty(s1));
4171 if (i->failed_assert_trigger)
4172 printf(" none of the trigger assertions were met\n");
4173 else if (i->failed_assert)
4174 printf(" %s=%s%s was not met\n",
4175 i->failed_assert,
4176 i->failed_assert_negate ? "!" : "",
4177 i->failed_assert_parameter);
4178 }
4179
4180 if (i->sysfs_path)
4181 printf(" Device: %s\n", i->sysfs_path);
4182 if (i->where)
4183 printf(" Where: %s\n", i->where);
4184 if (i->what)
4185 printf(" What: %s\n", i->what);
4186
4187 STRV_FOREACH(t, i->documentation)
4188 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
4189
4190 STRV_FOREACH_PAIR(t, t2, i->listen)
4191 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
4192
4193 if (i->accept)
4194 printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
4195
4196 LIST_FOREACH(exec, p, i->exec) {
4197 _cleanup_free_ char *argv = NULL;
4198 bool good;
4199
4200 /* Only show exited processes here */
4201 if (p->code == 0)
4202 continue;
4203
4204 argv = strv_join(p->argv, " ");
4205 printf(" Process: "PID_FMT" %s=%s ", p->pid, p->name, strna(argv));
4206
4207 good = is_clean_exit(p->code, p->status, EXIT_CLEAN_DAEMON, NULL);
4208 if (!good) {
4209 on = ansi_highlight_red();
4210 off = ansi_normal();
4211 } else
4212 on = off = "";
4213
4214 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
4215
4216 if (p->code == CLD_EXITED) {
4217 const char *c;
4218
4219 printf("status=%i", p->status);
4220
4221 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
4222 if (c)
4223 printf("/%s", c);
4224
4225 } else
4226 printf("signal=%s", signal_to_string(p->status));
4227
4228 printf(")%s\n", off);
4229
4230 if (i->main_pid == p->pid &&
4231 i->start_timestamp == p->start_timestamp &&
4232 i->exit_timestamp == p->start_timestamp)
4233 /* Let's not show this twice */
4234 i->main_pid = 0;
4235
4236 if (p->pid == i->control_pid)
4237 i->control_pid = 0;
4238 }
4239
4240 if (i->main_pid > 0 || i->control_pid > 0) {
4241 if (i->main_pid > 0) {
4242 printf(" Main PID: "PID_FMT, i->main_pid);
4243
4244 if (i->running) {
4245
4246 if (arg_transport == BUS_TRANSPORT_LOCAL) {
4247 _cleanup_free_ char *comm = NULL;
4248
4249 (void) get_process_comm(i->main_pid, &comm);
4250 if (comm)
4251 printf(" (%s)", comm);
4252 }
4253
4254 } else if (i->exit_code > 0) {
4255 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
4256
4257 if (i->exit_code == CLD_EXITED) {
4258 const char *c;
4259
4260 printf("status=%i", i->exit_status);
4261
4262 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
4263 if (c)
4264 printf("/%s", c);
4265
4266 } else
4267 printf("signal=%s", signal_to_string(i->exit_status));
4268 printf(")");
4269 }
4270 }
4271
4272 if (i->control_pid > 0) {
4273 _cleanup_free_ char *c = NULL;
4274
4275 if (i->main_pid > 0)
4276 fputs("; Control PID: ", stdout);
4277 else
4278 fputs("Cntrl PID: ", stdout); /* if first in column, abbreviated so it fits alignment */
4279
4280 printf(PID_FMT, i->control_pid);
4281
4282 if (arg_transport == BUS_TRANSPORT_LOCAL) {
4283 (void) get_process_comm(i->control_pid, &c);
4284 if (c)
4285 printf(" (%s)", c);
4286 }
4287 }
4288
4289 printf("\n");
4290 }
4291
4292 if (i->status_text)
4293 printf(" Status: \"%s\"\n", i->status_text);
4294 if (i->status_errno > 0)
4295 printf(" Error: %i (%s)\n", i->status_errno, strerror(i->status_errno));
4296
4297 if (i->ip_ingress_bytes != (uint64_t) -1 && i->ip_egress_bytes != (uint64_t) -1) {
4298 char buf_in[FORMAT_BYTES_MAX], buf_out[FORMAT_BYTES_MAX];
4299
4300 printf(" IP: %s in, %s out\n",
4301 format_bytes(buf_in, sizeof(buf_in), i->ip_ingress_bytes),
4302 format_bytes(buf_out, sizeof(buf_out), i->ip_egress_bytes));
4303 }
4304
4305 if (i->tasks_current != (uint64_t) -1) {
4306 printf(" Tasks: %" PRIu64, i->tasks_current);
4307
4308 if (i->tasks_max != (uint64_t) -1)
4309 printf(" (limit: %" PRIu64 ")\n", i->tasks_max);
4310 else
4311 printf("\n");
4312 }
4313
4314 if (i->memory_current != (uint64_t) -1) {
4315 char buf[FORMAT_BYTES_MAX];
4316
4317 printf(" Memory: %s", format_bytes(buf, sizeof(buf), i->memory_current));
4318
4319 if (i->memory_low > 0 || i->memory_high != CGROUP_LIMIT_MAX ||
4320 i->memory_max != CGROUP_LIMIT_MAX || i->memory_swap_max != CGROUP_LIMIT_MAX ||
4321 i->memory_limit != CGROUP_LIMIT_MAX) {
4322 const char *prefix = "";
4323
4324 printf(" (");
4325 if (i->memory_low > 0) {
4326 printf("%slow: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_low));
4327 prefix = " ";
4328 }
4329 if (i->memory_high != CGROUP_LIMIT_MAX) {
4330 printf("%shigh: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_high));
4331 prefix = " ";
4332 }
4333 if (i->memory_max != CGROUP_LIMIT_MAX) {
4334 printf("%smax: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_max));
4335 prefix = " ";
4336 }
4337 if (i->memory_swap_max != CGROUP_LIMIT_MAX) {
4338 printf("%sswap max: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_swap_max));
4339 prefix = " ";
4340 }
4341 if (i->memory_limit != CGROUP_LIMIT_MAX) {
4342 printf("%slimit: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_limit));
4343 prefix = " ";
4344 }
4345 printf(")");
4346 }
4347 printf("\n");
4348 }
4349
4350 if (i->cpu_usage_nsec != (uint64_t) -1) {
4351 char buf[FORMAT_TIMESPAN_MAX];
4352 printf(" CPU: %s\n", format_timespan(buf, sizeof(buf), i->cpu_usage_nsec / NSEC_PER_USEC, USEC_PER_MSEC));
4353 }
4354
4355 if (i->control_group) {
4356 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
4357 static const char prefix[] = " ";
4358 unsigned c;
4359
4360 printf(" CGroup: %s\n", i->control_group);
4361
4362 c = columns();
4363 if (c > sizeof(prefix) - 1)
4364 c -= sizeof(prefix) - 1;
4365 else
4366 c = 0;
4367
4368 r = unit_show_processes(bus, i->id, i->control_group, prefix, c, get_output_flags(), &error);
4369 if (r == -EBADR) {
4370 unsigned k = 0;
4371 pid_t extra[2];
4372
4373 /* Fallback for older systemd versions where the GetUnitProcesses() call is not yet available */
4374
4375 if (i->main_pid > 0)
4376 extra[k++] = i->main_pid;
4377
4378 if (i->control_pid > 0)
4379 extra[k++] = i->control_pid;
4380
4381 show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, extra, k, get_output_flags());
4382 } else if (r < 0)
4383 log_warning_errno(r, "Failed to dump process list, ignoring: %s", bus_error_message(&error, r));
4384 }
4385
4386 if (i->id && arg_transport == BUS_TRANSPORT_LOCAL)
4387 show_journal_by_unit(
4388 stdout,
4389 i->id,
4390 arg_output,
4391 0,
4392 i->inactive_exit_timestamp_monotonic,
4393 arg_lines,
4394 getuid(),
4395 get_output_flags() | OUTPUT_BEGIN_NEWLINE,
4396 SD_JOURNAL_LOCAL_ONLY,
4397 arg_scope == UNIT_FILE_SYSTEM,
4398 ellipsized);
4399
4400 if (i->need_daemon_reload)
4401 warn_unit_file_changed(i->id);
4402 }
4403
4404 static void show_unit_help(UnitStatusInfo *i) {
4405 char **p;
4406
4407 assert(i);
4408
4409 if (!i->documentation) {
4410 log_info("Documentation for %s not known.", i->id);
4411 return;
4412 }
4413
4414 STRV_FOREACH(p, i->documentation)
4415 if (startswith(*p, "man:"))
4416 show_man_page(*p + 4, false);
4417 else
4418 log_info("Can't show: %s", *p);
4419 }
4420
4421 static int status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) {
4422 int r;
4423
4424 assert(name);
4425 assert(m);
4426 assert(i);
4427
4428 switch (contents[0]) {
4429
4430 case SD_BUS_TYPE_STRING: {
4431 const char *s;
4432
4433 r = sd_bus_message_read(m, "s", &s);
4434 if (r < 0)
4435 return bus_log_parse_error(r);
4436
4437 if (!isempty(s)) {
4438 if (streq(name, "Id"))
4439 i->id = s;
4440 else if (streq(name, "LoadState"))
4441 i->load_state = s;
4442 else if (streq(name, "ActiveState"))
4443 i->active_state = s;
4444 else if (streq(name, "SubState"))
4445 i->sub_state = s;
4446 else if (streq(name, "Description"))
4447 i->description = s;
4448 else if (streq(name, "FragmentPath"))
4449 i->fragment_path = s;
4450 else if (streq(name, "SourcePath"))
4451 i->source_path = s;
4452 #ifndef NOLEGACY
4453 else if (streq(name, "DefaultControlGroup")) {
4454 const char *e;
4455 e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
4456 if (e)
4457 i->control_group = e;
4458 }
4459 #endif
4460 else if (streq(name, "ControlGroup"))
4461 i->control_group = s;
4462 else if (streq(name, "StatusText"))
4463 i->status_text = s;
4464 else if (streq(name, "PIDFile"))
4465 i->pid_file = s;
4466 else if (streq(name, "SysFSPath"))
4467 i->sysfs_path = s;
4468 else if (streq(name, "Where"))
4469 i->where = s;
4470 else if (streq(name, "What"))
4471 i->what = s;
4472 else if (streq(name, "Following"))
4473 i->following = s;
4474 else if (streq(name, "UnitFileState"))
4475 i->unit_file_state = s;
4476 else if (streq(name, "UnitFilePreset"))
4477 i->unit_file_preset = s;
4478 else if (streq(name, "Result"))
4479 i->result = s;
4480 }
4481
4482 break;
4483 }
4484
4485 case SD_BUS_TYPE_BOOLEAN: {
4486 int b;
4487
4488 r = sd_bus_message_read(m, "b", &b);
4489 if (r < 0)
4490 return bus_log_parse_error(r);
4491
4492 if (streq(name, "Accept"))
4493 i->accept = b;
4494 else if (streq(name, "NeedDaemonReload"))
4495 i->need_daemon_reload = b;
4496 else if (streq(name, "ConditionResult"))
4497 i->condition_result = b;
4498 else if (streq(name, "AssertResult"))
4499 i->assert_result = b;
4500 else if (streq(name, "Transient"))
4501 i->transient = b;
4502
4503 break;
4504 }
4505
4506 case SD_BUS_TYPE_UINT32: {
4507 uint32_t u;
4508
4509 r = sd_bus_message_read(m, "u", &u);
4510 if (r < 0)
4511 return bus_log_parse_error(r);
4512
4513 if (streq(name, "MainPID")) {
4514 if (u > 0) {
4515 i->main_pid = (pid_t) u;
4516 i->running = true;
4517 }
4518 } else if (streq(name, "ControlPID"))
4519 i->control_pid = (pid_t) u;
4520 else if (streq(name, "ExecMainPID")) {
4521 if (u > 0)
4522 i->main_pid = (pid_t) u;
4523 } else if (streq(name, "NAccepted"))
4524 i->n_accepted = u;
4525 else if (streq(name, "NConnections"))
4526 i->n_connections = u;
4527
4528 break;
4529 }
4530
4531 case SD_BUS_TYPE_INT32: {
4532 int32_t j;
4533
4534 r = sd_bus_message_read(m, "i", &j);
4535 if (r < 0)
4536 return bus_log_parse_error(r);
4537
4538 if (streq(name, "ExecMainCode"))
4539 i->exit_code = (int) j;
4540 else if (streq(name, "ExecMainStatus"))
4541 i->exit_status = (int) j;
4542 else if (streq(name, "StatusErrno"))
4543 i->status_errno = (int) j;
4544
4545 break;
4546 }
4547
4548 case SD_BUS_TYPE_UINT64: {
4549 uint64_t u;
4550
4551 r = sd_bus_message_read(m, "t", &u);
4552 if (r < 0)
4553 return bus_log_parse_error(r);
4554
4555 if (streq(name, "ExecMainStartTimestamp"))
4556 i->start_timestamp = (usec_t) u;
4557 else if (streq(name, "ExecMainExitTimestamp"))
4558 i->exit_timestamp = (usec_t) u;
4559 else if (streq(name, "ActiveEnterTimestamp"))
4560 i->active_enter_timestamp = (usec_t) u;
4561 else if (streq(name, "InactiveEnterTimestamp"))
4562 i->inactive_enter_timestamp = (usec_t) u;
4563 else if (streq(name, "InactiveExitTimestamp"))
4564 i->inactive_exit_timestamp = (usec_t) u;
4565 else if (streq(name, "InactiveExitTimestampMonotonic"))
4566 i->inactive_exit_timestamp_monotonic = (usec_t) u;
4567 else if (streq(name, "ActiveExitTimestamp"))
4568 i->active_exit_timestamp = (usec_t) u;
4569 else if (streq(name, "ConditionTimestamp"))
4570 i->condition_timestamp = (usec_t) u;
4571 else if (streq(name, "AssertTimestamp"))
4572 i->assert_timestamp = (usec_t) u;
4573 else if (streq(name, "MemoryCurrent"))
4574 i->memory_current = u;
4575 else if (streq(name, "MemoryLow"))
4576 i->memory_low = u;
4577 else if (streq(name, "MemoryHigh"))
4578 i->memory_high = u;
4579 else if (streq(name, "MemoryMax"))
4580 i->memory_max = u;
4581 else if (streq(name, "MemorySwapMax"))
4582 i->memory_swap_max = u;
4583 else if (streq(name, "MemoryLimit"))
4584 i->memory_limit = u;
4585 else if (streq(name, "TasksCurrent"))
4586 i->tasks_current = u;
4587 else if (streq(name, "TasksMax"))
4588 i->tasks_max = u;
4589 else if (streq(name, "CPUUsageNSec"))
4590 i->cpu_usage_nsec = u;
4591 else if (streq(name, "NextElapseUSecMonotonic"))
4592 i->next_elapse_monotonic = u;
4593 else if (streq(name, "NextElapseUSecRealtime"))
4594 i->next_elapse_real = u;
4595 else if (streq(name, "IPIngressBytes"))
4596 i->ip_ingress_bytes = u;
4597 else if (streq(name, "IPEgressBytes"))
4598 i->ip_egress_bytes = u;
4599
4600 break;
4601 }
4602
4603 case SD_BUS_TYPE_ARRAY:
4604
4605 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
4606 _cleanup_free_ ExecStatusInfo *info = NULL;
4607
4608 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
4609 if (r < 0)
4610 return bus_log_parse_error(r);
4611
4612 info = new0(ExecStatusInfo, 1);
4613 if (!info)
4614 return log_oom();
4615
4616 while ((r = exec_status_info_deserialize(m, info)) > 0) {
4617
4618 info->name = strdup(name);
4619 if (!info->name)
4620 return log_oom();
4621
4622 LIST_PREPEND(exec, i->exec, info);
4623
4624 info = new0(ExecStatusInfo, 1);
4625 if (!info)
4626 return log_oom();
4627 }
4628
4629 if (r < 0)
4630 return bus_log_parse_error(r);
4631
4632 r = sd_bus_message_exit_container(m);
4633 if (r < 0)
4634 return bus_log_parse_error(r);
4635
4636 return 0;
4637
4638 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
4639 const char *type, *path;
4640
4641 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
4642 if (r < 0)
4643 return bus_log_parse_error(r);
4644
4645 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) {
4646
4647 r = strv_extend(&i->listen, type);
4648 if (r < 0)
4649 return r;
4650
4651 r = strv_extend(&i->listen, path);
4652 if (r < 0)
4653 return r;
4654 }
4655 if (r < 0)
4656 return bus_log_parse_error(r);
4657
4658 r = sd_bus_message_exit_container(m);
4659 if (r < 0)
4660 return bus_log_parse_error(r);
4661
4662 return 0;
4663
4664 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "DropInPaths")) {
4665
4666 r = sd_bus_message_read_strv(m, &i->dropin_paths);
4667 if (r < 0)
4668 return bus_log_parse_error(r);
4669
4670 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Documentation")) {
4671
4672 r = sd_bus_message_read_strv(m, &i->documentation);
4673 if (r < 0)
4674 return bus_log_parse_error(r);
4675
4676 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Conditions")) {
4677 const char *cond, *param;
4678 int trigger, negate;
4679 int32_t state;
4680
4681 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
4682 if (r < 0)
4683 return bus_log_parse_error(r);
4684
4685 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
4686 _cleanup_(unit_condition_freep) UnitCondition *c = NULL;
4687
4688 log_debug("%s trigger=%d negate=%d %s →%d", cond, trigger, negate, param, state);
4689
4690 c = new0(UnitCondition, 1);
4691 if (!c)
4692 return log_oom();
4693
4694 c->name = strdup(cond);
4695 c->param = strdup(param);
4696 if (!c->name || !c->param)
4697 return log_oom();
4698
4699 c->trigger = trigger;
4700 c->negate = negate;
4701 c->tristate = state;
4702
4703 LIST_PREPEND(conditions, i->conditions, c);
4704 c = NULL;
4705 }
4706 if (r < 0)
4707 return bus_log_parse_error(r);
4708
4709 r = sd_bus_message_exit_container(m);
4710 if (r < 0)
4711 return bus_log_parse_error(r);
4712
4713 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Asserts")) {
4714 const char *cond, *param;
4715 int trigger, negate;
4716 int32_t state;
4717
4718 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
4719 if (r < 0)
4720 return bus_log_parse_error(r);
4721
4722 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
4723 log_debug("%s %d %d %s %d", cond, trigger, negate, param, state);
4724 if (state < 0 && (!trigger || !i->failed_assert)) {
4725 i->failed_assert = cond;
4726 i->failed_assert_trigger = trigger;
4727 i->failed_assert_negate = negate;
4728 i->failed_assert_parameter = param;
4729 }
4730 }
4731 if (r < 0)
4732 return bus_log_parse_error(r);
4733
4734 r = sd_bus_message_exit_container(m);
4735 if (r < 0)
4736 return bus_log_parse_error(r);
4737
4738 } else
4739 goto skip;
4740
4741 break;
4742
4743 case SD_BUS_TYPE_STRUCT_BEGIN:
4744
4745 if (streq(name, "LoadError")) {
4746 const char *n, *message;
4747
4748 r = sd_bus_message_read(m, "(ss)", &n, &message);
4749 if (r < 0)
4750 return bus_log_parse_error(r);
4751
4752 if (!isempty(message))
4753 i->load_error = message;
4754 } else
4755 goto skip;
4756
4757 break;
4758
4759 default:
4760 goto skip;
4761 }
4762
4763 return 0;
4764
4765 skip:
4766 r = sd_bus_message_skip(m, contents);
4767 if (r < 0)
4768 return bus_log_parse_error(r);
4769
4770 return 0;
4771 }
4772
4773 #define print_prop(name, fmt, ...) \
4774 do { \
4775 if (arg_value) \
4776 printf(fmt "\n", __VA_ARGS__); \
4777 else \
4778 printf("%s=" fmt "\n", name, __VA_ARGS__); \
4779 } while (0)
4780
4781 static int print_property(const char *name, sd_bus_message *m, const char *contents) {
4782 int r;
4783
4784 assert(name);
4785 assert(m);
4786
4787 /* This is a low-level property printer, see
4788 * print_status_info() for the nicer output */
4789
4790 if (arg_properties && !strv_find(arg_properties, name)) {
4791 /* skip what we didn't read */
4792 r = sd_bus_message_skip(m, contents);
4793 return r;
4794 }
4795
4796 switch (contents[0]) {
4797
4798 case SD_BUS_TYPE_STRUCT_BEGIN:
4799
4800 if (contents[1] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) {
4801 uint32_t u;
4802
4803 r = sd_bus_message_read(m, "(uo)", &u, NULL);
4804 if (r < 0)
4805 return bus_log_parse_error(r);
4806
4807 if (u > 0)
4808 print_prop(name, "%"PRIu32, u);
4809 else if (arg_all)
4810 print_prop(name, "%s", "");
4811
4812 return 0;
4813
4814 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Unit")) {
4815 const char *s;
4816
4817 r = sd_bus_message_read(m, "(so)", &s, NULL);
4818 if (r < 0)
4819 return bus_log_parse_error(r);
4820
4821 if (arg_all || !isempty(s))
4822 print_prop(name, "%s", s);
4823
4824 return 0;
4825
4826 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) {
4827 const char *a = NULL, *b = NULL;
4828
4829 r = sd_bus_message_read(m, "(ss)", &a, &b);
4830 if (r < 0)
4831 return bus_log_parse_error(r);
4832
4833 if (arg_all || !isempty(a) || !isempty(b))
4834 print_prop(name, "%s \"%s\"", strempty(a), strempty(b));
4835
4836 return 0;
4837 } else if (streq_ptr(name, "SystemCallFilter")) {
4838 _cleanup_strv_free_ char **l = NULL;
4839 int whitelist;
4840
4841 r = sd_bus_message_enter_container(m, 'r', "bas");
4842 if (r < 0)
4843 return bus_log_parse_error(r);
4844
4845 r = sd_bus_message_read(m, "b", &whitelist);
4846 if (r < 0)
4847 return bus_log_parse_error(r);
4848
4849 r = sd_bus_message_read_strv(m, &l);
4850 if (r < 0)
4851 return bus_log_parse_error(r);
4852
4853 r = sd_bus_message_exit_container(m);
4854 if (r < 0)
4855 return bus_log_parse_error(r);
4856
4857 if (arg_all || whitelist || !strv_isempty(l)) {
4858 bool first = true;
4859 char **i;
4860
4861 if (!arg_value) {
4862 fputs(name, stdout);
4863 fputc('=', stdout);
4864 }
4865
4866 if (!whitelist)
4867 fputc('~', stdout);
4868
4869 STRV_FOREACH(i, l) {
4870 if (first)
4871 first = false;
4872 else
4873 fputc(' ', stdout);
4874
4875 fputs(*i, stdout);
4876 }
4877 fputc('\n', stdout);
4878 }
4879
4880 return 0;
4881 }
4882
4883 break;
4884
4885 case SD_BUS_TYPE_ARRAY:
4886
4887 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) {
4888 const char *path;
4889 int ignore;
4890
4891 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)");
4892 if (r < 0)
4893 return bus_log_parse_error(r);
4894
4895 while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0)
4896 print_prop("EnvironmentFile", "%s (ignore_errors=%s)", path, yes_no(ignore));
4897
4898 if (r < 0)
4899 return bus_log_parse_error(r);
4900
4901 r = sd_bus_message_exit_container(m);
4902 if (r < 0)
4903 return bus_log_parse_error(r);
4904
4905 return 0;
4906
4907 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) {
4908 const char *type, *path;
4909
4910 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
4911 if (r < 0)
4912 return bus_log_parse_error(r);
4913
4914 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
4915 print_prop(type, "%s", path);
4916 if (r < 0)
4917 return bus_log_parse_error(r);
4918
4919 r = sd_bus_message_exit_container(m);
4920 if (r < 0)
4921 return bus_log_parse_error(r);
4922
4923 return 0;
4924
4925 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
4926 const char *type, *path;
4927
4928 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
4929 if (r < 0)
4930 return bus_log_parse_error(r);
4931
4932 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
4933 if (arg_value)
4934 puts(path);
4935 else
4936 printf("Listen%s=%s\n", type, path);
4937 if (r < 0)
4938 return bus_log_parse_error(r);
4939
4940 r = sd_bus_message_exit_container(m);
4941 if (r < 0)
4942 return bus_log_parse_error(r);
4943
4944 return 0;
4945
4946 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Timers")) {
4947 const char *base;
4948 uint64_t value, next_elapse;
4949
4950 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)");
4951 if (r < 0)
4952 return bus_log_parse_error(r);
4953
4954 while ((r = sd_bus_message_read(m, "(stt)", &base, &value, &next_elapse)) > 0) {
4955 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
4956
4957 print_prop(base, "{ value=%s ; next_elapse=%s }",
4958 format_timespan(timespan1, sizeof(timespan1), value, 0),
4959 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
4960 }
4961 if (r < 0)
4962 return bus_log_parse_error(r);
4963
4964 r = sd_bus_message_exit_container(m);
4965 if (r < 0)
4966 return bus_log_parse_error(r);
4967
4968 return 0;
4969
4970 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
4971 ExecStatusInfo info = {};
4972
4973 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
4974 if (r < 0)
4975 return bus_log_parse_error(r);
4976
4977 while ((r = exec_status_info_deserialize(m, &info)) > 0) {
4978 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
4979 _cleanup_free_ char *tt;
4980
4981 tt = strv_join(info.argv, " ");
4982
4983 print_prop(name,
4984 "{ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid="PID_FMT" ; code=%s ; status=%i%s%s }",
4985 strna(info.path),
4986 strna(tt),
4987 yes_no(info.ignore),
4988 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
4989 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
4990 info.pid,
4991 sigchld_code_to_string(info.code),
4992 info.status,
4993 info.code == CLD_EXITED ? "" : "/",
4994 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
4995
4996 free(info.path);
4997 strv_free(info.argv);
4998 zero(info);
4999 }
5000
5001 r = sd_bus_message_exit_container(m);
5002 if (r < 0)
5003 return bus_log_parse_error(r);
5004
5005 return 0;
5006
5007 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) {
5008 const char *path, *rwm;
5009
5010 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
5011 if (r < 0)
5012 return bus_log_parse_error(r);
5013
5014 while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0)
5015 print_prop(name, "%s %s", strna(path), strna(rwm));
5016 if (r < 0)
5017 return bus_log_parse_error(r);
5018
5019 r = sd_bus_message_exit_container(m);
5020 if (r < 0)
5021 return bus_log_parse_error(r);
5022
5023 return 0;
5024
5025 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN &&
5026 STR_IN_SET(name, "IODeviceWeight", "BlockIODeviceWeight")) {
5027 const char *path;
5028 uint64_t weight;
5029
5030 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
5031 if (r < 0)
5032 return bus_log_parse_error(r);
5033
5034 while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0)
5035 print_prop(name, "%s %"PRIu64, strna(path), weight);
5036 if (r < 0)
5037 return bus_log_parse_error(r);
5038
5039 r = sd_bus_message_exit_container(m);
5040 if (r < 0)
5041 return bus_log_parse_error(r);
5042
5043 return 0;
5044
5045 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN &&
5046 (cgroup_io_limit_type_from_string(name) >= 0 ||
5047 STR_IN_SET(name, "BlockIOReadBandwidth", "BlockIOWriteBandwidth"))) {
5048 const char *path;
5049 uint64_t bandwidth;
5050
5051 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
5052 if (r < 0)
5053 return bus_log_parse_error(r);
5054
5055 while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0)
5056 print_prop(name, "%s %"PRIu64, strna(path), bandwidth);
5057 if (r < 0)
5058 return bus_log_parse_error(r);
5059
5060 r = sd_bus_message_exit_container(m);
5061 if (r < 0)
5062 return bus_log_parse_error(r);
5063
5064 return 0;
5065
5066 } else if (contents[1] == SD_BUS_TYPE_BYTE && streq(name, "StandardInputData")) {
5067 _cleanup_free_ char *h = NULL;
5068 const void *p;
5069 size_t sz;
5070 ssize_t n;
5071
5072 r = sd_bus_message_read_array(m, 'y', &p, &sz);
5073 if (r < 0)
5074 return bus_log_parse_error(r);
5075
5076 n = base64mem(p, sz, &h);
5077 if (n < 0)
5078 return log_oom();
5079
5080 print_prop(name, "%s", h);
5081
5082 return 0;
5083 }
5084
5085 break;
5086 }
5087
5088 r = bus_print_property(name, m, arg_value, arg_all);
5089 if (r < 0)
5090 return bus_log_parse_error(r);
5091
5092 if (r == 0) {
5093 r = sd_bus_message_skip(m, contents);
5094 if (r < 0)
5095 return bus_log_parse_error(r);
5096
5097 if (arg_all)
5098 printf("%s=[unprintable]\n", name);
5099 }
5100
5101 return 0;
5102 }
5103
5104 static int show_one(
5105 const char *verb,
5106 sd_bus *bus,
5107 const char *path,
5108 const char *unit,
5109 bool show_properties,
5110 bool *new_line,
5111 bool *ellipsized) {
5112
5113 static const struct bus_properties_map property_map[] = {
5114 { "LoadState", "s", map_string_no_copy, offsetof(UnitStatusInfo, load_state) },
5115 { "ActiveState", "s", map_string_no_copy, offsetof(UnitStatusInfo, active_state) },
5116 {}
5117 };
5118
5119 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5120 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5121 _cleanup_set_free_ Set *found_properties = NULL;
5122 _cleanup_(unit_status_info_free) UnitStatusInfo info = {
5123 .memory_current = (uint64_t) -1,
5124 .memory_high = CGROUP_LIMIT_MAX,
5125 .memory_max = CGROUP_LIMIT_MAX,
5126 .memory_swap_max = CGROUP_LIMIT_MAX,
5127 .memory_limit = (uint64_t) -1,
5128 .cpu_usage_nsec = (uint64_t) -1,
5129 .tasks_current = (uint64_t) -1,
5130 .tasks_max = (uint64_t) -1,
5131 .ip_ingress_bytes = (uint64_t) -1,
5132 .ip_egress_bytes = (uint64_t) -1,
5133 };
5134 int r;
5135
5136 assert(path);
5137 assert(new_line);
5138
5139 log_debug("Showing one %s", path);
5140
5141 r = sd_bus_call_method(
5142 bus,
5143 "org.freedesktop.systemd1",
5144 path,
5145 "org.freedesktop.DBus.Properties",
5146 "GetAll",
5147 &error,
5148 &reply,
5149 "s", "");
5150 if (r < 0)
5151 return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r));
5152
5153 if (unit) {
5154 r = bus_message_map_all_properties(reply, property_map, &error, &info);
5155 if (r < 0)
5156 return log_error_errno(r, "Failed to map properties: %s", bus_error_message(&error, r));
5157
5158 if (streq_ptr(info.load_state, "not-found") && streq_ptr(info.active_state, "inactive")) {
5159 log_full(streq(verb, "status") ? LOG_ERR : LOG_DEBUG,
5160 "Unit %s could not be found.", unit);
5161
5162 if (streq(verb, "status"))
5163 return EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN;
5164
5165 if (!streq(verb, "show"))
5166 return -ENOENT;
5167 }
5168
5169 r = sd_bus_message_rewind(reply, true);
5170 if (r < 0)
5171 return log_error_errno(r, "Failed to rewind: %s", bus_error_message(&error, r));
5172 }
5173
5174 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
5175 if (r < 0)
5176 return bus_log_parse_error(r);
5177
5178 if (*new_line)
5179 printf("\n");
5180
5181 *new_line = true;
5182
5183 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
5184 const char *name, *contents;
5185
5186 r = sd_bus_message_read(reply, "s", &name);
5187 if (r < 0)
5188 return bus_log_parse_error(r);
5189
5190 r = sd_bus_message_peek_type(reply, NULL, &contents);
5191 if (r < 0)
5192 return bus_log_parse_error(r);
5193
5194 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents);
5195 if (r < 0)
5196 return bus_log_parse_error(r);
5197
5198 if (show_properties) {
5199 r = set_ensure_allocated(&found_properties, &string_hash_ops);
5200 if (r < 0)
5201 return log_oom();
5202
5203 r = set_put(found_properties, name);
5204 if (r < 0 && r != EEXIST)
5205 return log_oom();
5206
5207 r = print_property(name, reply, contents);
5208 } else
5209 r = status_property(name, reply, &info, contents);
5210 if (r < 0)
5211 return r;
5212
5213 r = sd_bus_message_exit_container(reply);
5214 if (r < 0)
5215 return bus_log_parse_error(r);
5216
5217 r = sd_bus_message_exit_container(reply);
5218 if (r < 0)
5219 return bus_log_parse_error(r);
5220 }
5221 if (r < 0)
5222 return bus_log_parse_error(r);
5223
5224 r = sd_bus_message_exit_container(reply);
5225 if (r < 0)
5226 return bus_log_parse_error(r);
5227
5228 r = 0;
5229 if (show_properties) {
5230 char **pp;
5231
5232 STRV_FOREACH(pp, arg_properties)
5233 if (!set_contains(found_properties, *pp))
5234 log_debug("Property %s does not exist.", *pp);
5235
5236 } else if (streq(verb, "help"))
5237 show_unit_help(&info);
5238 else if (streq(verb, "status")) {
5239 print_status_info(bus, &info, ellipsized);
5240
5241 if (info.active_state && !STR_IN_SET(info.active_state, "active", "reloading"))
5242 r = EXIT_PROGRAM_NOT_RUNNING;
5243 else
5244 r = EXIT_PROGRAM_RUNNING_OR_SERVICE_OK;
5245 }
5246
5247 return r;
5248 }
5249
5250 static int get_unit_dbus_path_by_pid(
5251 sd_bus *bus,
5252 uint32_t pid,
5253 char **unit) {
5254
5255 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5256 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5257 char *u;
5258 int r;
5259
5260 r = sd_bus_call_method(
5261 bus,
5262 "org.freedesktop.systemd1",
5263 "/org/freedesktop/systemd1",
5264 "org.freedesktop.systemd1.Manager",
5265 "GetUnitByPID",
5266 &error,
5267 &reply,
5268 "u", pid);
5269 if (r < 0)
5270 return log_error_errno(r, "Failed to get unit for PID %"PRIu32": %s", pid, bus_error_message(&error, r));
5271
5272 r = sd_bus_message_read(reply, "o", &u);
5273 if (r < 0)
5274 return bus_log_parse_error(r);
5275
5276 u = strdup(u);
5277 if (!u)
5278 return log_oom();
5279
5280 *unit = u;
5281 return 0;
5282 }
5283
5284 static int show_all(
5285 const char* verb,
5286 sd_bus *bus,
5287 bool show_properties,
5288 bool *new_line,
5289 bool *ellipsized) {
5290
5291 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5292 _cleanup_free_ UnitInfo *unit_infos = NULL;
5293 const UnitInfo *u;
5294 unsigned c;
5295 int r, ret = 0;
5296
5297 r = get_unit_list(bus, NULL, NULL, &unit_infos, 0, &reply);
5298 if (r < 0)
5299 return r;
5300
5301 pager_open(arg_no_pager, false);
5302
5303 c = (unsigned) r;
5304
5305 qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
5306
5307 for (u = unit_infos; u < unit_infos + c; u++) {
5308 _cleanup_free_ char *p = NULL;
5309
5310 p = unit_dbus_path_from_name(u->id);
5311 if (!p)
5312 return log_oom();
5313
5314 r = show_one(verb, bus, p, u->id, show_properties, new_line, ellipsized);
5315 if (r < 0)
5316 return r;
5317 else if (r > 0 && ret == 0)
5318 ret = r;
5319 }
5320
5321 return ret;
5322 }
5323
5324 static int show_system_status(sd_bus *bus) {
5325 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], since2[FORMAT_TIMESTAMP_MAX];
5326 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5327 _cleanup_(machine_info_clear) struct machine_info mi = {};
5328 _cleanup_free_ char *hn = NULL;
5329 const char *on, *off;
5330 int r;
5331
5332 hn = gethostname_malloc();
5333 if (!hn)
5334 return log_oom();
5335
5336 r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, &error, &mi);
5337 if (r < 0)
5338 return log_error_errno(r, "Failed to read server status: %s", bus_error_message(&error, r));
5339
5340 if (streq_ptr(mi.state, "degraded")) {
5341 on = ansi_highlight_red();
5342 off = ansi_normal();
5343 } else if (streq_ptr(mi.state, "running")) {
5344 on = ansi_highlight_green();
5345 off = ansi_normal();
5346 } else {
5347 on = ansi_highlight_yellow();
5348 off = ansi_normal();
5349 }
5350
5351 printf("%s%s%s %s\n", on, special_glyph(BLACK_CIRCLE), off, arg_host ? arg_host : hn);
5352
5353 printf(" State: %s%s%s\n",
5354 on, strna(mi.state), off);
5355
5356 printf(" Jobs: %" PRIu32 " queued\n", mi.n_jobs);
5357 printf(" Failed: %" PRIu32 " units\n", mi.n_failed_units);
5358
5359 printf(" Since: %s; %s\n",
5360 format_timestamp(since2, sizeof(since2), mi.timestamp),
5361 format_timestamp_relative(since1, sizeof(since1), mi.timestamp));
5362
5363 printf(" CGroup: %s\n", mi.control_group ?: "/");
5364 if (IN_SET(arg_transport,
5365 BUS_TRANSPORT_LOCAL,
5366 BUS_TRANSPORT_MACHINE)) {
5367 static const char prefix[] = " ";
5368 unsigned c;
5369
5370 c = columns();
5371 if (c > sizeof(prefix) - 1)
5372 c -= sizeof(prefix) - 1;
5373 else
5374 c = 0;
5375
5376 show_cgroup(SYSTEMD_CGROUP_CONTROLLER, strempty(mi.control_group), prefix, c, get_output_flags());
5377 }
5378
5379 return 0;
5380 }
5381
5382 static int show(int argc, char *argv[], void *userdata) {
5383 bool show_properties, show_status, show_help, new_line = false;
5384 bool ellipsized = false;
5385 int r, ret = 0;
5386 sd_bus *bus;
5387
5388 assert(argv);
5389
5390 show_properties = streq(argv[0], "show");
5391 show_status = streq(argv[0], "status");
5392 show_help = streq(argv[0], "help");
5393
5394 if (show_help && argc <= 1) {
5395 log_error("This command expects one or more unit names. Did you mean --help?");
5396 return -EINVAL;
5397 }
5398
5399 r = acquire_bus(BUS_MANAGER, &bus);
5400 if (r < 0)
5401 return r;
5402
5403 pager_open(arg_no_pager, false);
5404
5405 if (show_status)
5406 /* Increase max number of open files to 16K if we can, we
5407 * might needs this when browsing journal files, which might
5408 * be split up into many files. */
5409 setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384));
5410
5411 /* If no argument is specified inspect the manager itself */
5412 if (show_properties && argc <= 1)
5413 return show_one(argv[0], bus, "/org/freedesktop/systemd1", NULL, show_properties, &new_line, &ellipsized);
5414
5415 if (show_status && argc <= 1) {
5416
5417 show_system_status(bus);
5418 new_line = true;
5419
5420 if (arg_all)
5421 ret = show_all(argv[0], bus, false, &new_line, &ellipsized);
5422 } else {
5423 _cleanup_free_ char **patterns = NULL;
5424 char **name;
5425
5426 STRV_FOREACH(name, strv_skip(argv, 1)) {
5427 _cleanup_free_ char *path = NULL, *unit = NULL;
5428 uint32_t id;
5429
5430 if (safe_atou32(*name, &id) < 0) {
5431 if (strv_push(&patterns, *name) < 0)
5432 return log_oom();
5433
5434 continue;
5435 } else if (show_properties) {
5436 /* Interpret as job id */
5437 if (asprintf(&path, "/org/freedesktop/systemd1/job/%u", id) < 0)
5438 return log_oom();
5439
5440 } else {
5441 /* Interpret as PID */
5442 r = get_unit_dbus_path_by_pid(bus, id, &path);
5443 if (r < 0) {
5444 ret = r;
5445 continue;
5446 }
5447
5448 r = unit_name_from_dbus_path(path, &unit);
5449 if (r < 0)
5450 return log_oom();
5451 }
5452
5453 r = show_one(argv[0], bus, path, unit, show_properties, &new_line, &ellipsized);
5454 if (r < 0)
5455 return r;
5456 else if (r > 0 && ret == 0)
5457 ret = r;
5458 }
5459
5460 if (!strv_isempty(patterns)) {
5461 _cleanup_strv_free_ char **names = NULL;
5462
5463 r = expand_names(bus, patterns, NULL, &names);
5464 if (r < 0)
5465 return log_error_errno(r, "Failed to expand names: %m");
5466
5467 STRV_FOREACH(name, names) {
5468 _cleanup_free_ char *path;
5469
5470 path = unit_dbus_path_from_name(*name);
5471 if (!path)
5472 return log_oom();
5473
5474 r = show_one(argv[0], bus, path, *name, show_properties, &new_line, &ellipsized);
5475 if (r < 0)
5476 return r;
5477 if (r > 0 && ret == 0)
5478 ret = r;
5479 }
5480 }
5481 }
5482
5483 if (ellipsized && !arg_quiet)
5484 printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
5485
5486 return ret;
5487 }
5488
5489 static int cat_file(const char *filename, bool newline) {
5490 _cleanup_close_ int fd;
5491
5492 fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOCTTY);
5493 if (fd < 0)
5494 return -errno;
5495
5496 printf("%s%s# %s%s\n",
5497 newline ? "\n" : "",
5498 ansi_highlight_blue(),
5499 filename,
5500 ansi_normal());
5501 fflush(stdout);
5502
5503 return copy_bytes(fd, STDOUT_FILENO, (uint64_t) -1, 0);
5504 }
5505
5506 static int cat(int argc, char *argv[], void *userdata) {
5507 _cleanup_lookup_paths_free_ LookupPaths lp = {};
5508 _cleanup_strv_free_ char **names = NULL;
5509 char **name;
5510 sd_bus *bus;
5511 bool first = true;
5512 int r;
5513
5514 if (arg_transport != BUS_TRANSPORT_LOCAL) {
5515 log_error("Cannot remotely cat units.");
5516 return -EINVAL;
5517 }
5518
5519 r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
5520 if (r < 0)
5521 return log_error_errno(r, "Failed to determine unit paths: %m");
5522
5523 r = acquire_bus(BUS_MANAGER, &bus);
5524 if (r < 0)
5525 return r;
5526
5527 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
5528 if (r < 0)
5529 return log_error_errno(r, "Failed to expand names: %m");
5530
5531 pager_open(arg_no_pager, false);
5532
5533 STRV_FOREACH(name, names) {
5534 _cleanup_free_ char *fragment_path = NULL;
5535 _cleanup_strv_free_ char **dropin_paths = NULL;
5536 char **path;
5537
5538 r = unit_find_paths(bus, *name, &lp, &fragment_path, &dropin_paths);
5539 if (r < 0)
5540 return r;
5541 else if (r == 0)
5542 return -ENOENT;
5543
5544 if (first)
5545 first = false;
5546 else
5547 puts("");
5548
5549 if (need_daemon_reload(bus, *name) > 0) /* ignore errors (<0), this is informational output */
5550 fprintf(stderr,
5551 "%s# Warning: %s changed on disk, the version systemd has loaded is outdated.\n"
5552 "%s# This output shows the current version of the unit's original fragment and drop-in files.\n"
5553 "%s# If fragments or drop-ins were added or removed, they are not properly reflected in this output.\n"
5554 "%s# Run 'systemctl%s daemon-reload' to reload units.%s\n",
5555 ansi_highlight_red(),
5556 *name,
5557 ansi_highlight_red(),
5558 ansi_highlight_red(),
5559 ansi_highlight_red(),
5560 arg_scope == UNIT_FILE_SYSTEM ? "" : " --user",
5561 ansi_normal());
5562
5563 if (fragment_path) {
5564 r = cat_file(fragment_path, false);
5565 if (r < 0)
5566 return log_warning_errno(r, "Failed to cat %s: %m", fragment_path);
5567 }
5568
5569 STRV_FOREACH(path, dropin_paths) {
5570 r = cat_file(*path, path == dropin_paths);
5571 if (r < 0)
5572 return log_warning_errno(r, "Failed to cat %s: %m", *path);
5573 }
5574 }
5575
5576 return 0;
5577 }
5578
5579 static int set_property(int argc, char *argv[], void *userdata) {
5580 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5581 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5582 _cleanup_free_ char *n = NULL;
5583 UnitType t;
5584 sd_bus *bus;
5585 int r;
5586
5587 r = acquire_bus(BUS_MANAGER, &bus);
5588 if (r < 0)
5589 return r;
5590
5591 polkit_agent_open_maybe();
5592
5593 r = sd_bus_message_new_method_call(
5594 bus,
5595 &m,
5596 "org.freedesktop.systemd1",
5597 "/org/freedesktop/systemd1",
5598 "org.freedesktop.systemd1.Manager",
5599 "SetUnitProperties");
5600 if (r < 0)
5601 return bus_log_create_error(r);
5602
5603 r = unit_name_mangle(argv[1], UNIT_NAME_NOGLOB, &n);
5604 if (r < 0)
5605 return log_error_errno(r, "Failed to mangle unit name: %m");
5606
5607 t = unit_name_to_type(n);
5608 if (t < 0) {
5609 log_error("Invalid unit type: %s", n);
5610 return -EINVAL;
5611 }
5612
5613 r = sd_bus_message_append(m, "sb", n, arg_runtime);
5614 if (r < 0)
5615 return bus_log_create_error(r);
5616
5617 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
5618 if (r < 0)
5619 return bus_log_create_error(r);
5620
5621 r = bus_append_unit_property_assignment_many(m, t, strv_skip(argv, 2));
5622 if (r < 0)
5623 return r;
5624
5625 r = sd_bus_message_close_container(m);
5626 if (r < 0)
5627 return bus_log_create_error(r);
5628
5629 r = sd_bus_call(bus, m, 0, &error, NULL);
5630 if (r < 0)
5631 return log_error_errno(r, "Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
5632
5633 return 0;
5634 }
5635
5636 static int daemon_reload(int argc, char *argv[], void *userdata) {
5637 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5638 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5639 const char *method;
5640 sd_bus *bus;
5641 int r;
5642
5643 r = acquire_bus(BUS_MANAGER, &bus);
5644 if (r < 0)
5645 return r;
5646
5647 polkit_agent_open_maybe();
5648
5649 switch (arg_action) {
5650
5651 case ACTION_RELOAD:
5652 method = "Reload";
5653 break;
5654
5655 case ACTION_REEXEC:
5656 method = "Reexecute";
5657 break;
5658
5659 case ACTION_SYSTEMCTL:
5660 method = streq(argv[0], "daemon-reexec") ? "Reexecute" :
5661 /* "daemon-reload" */ "Reload";
5662 break;
5663
5664 default:
5665 assert_not_reached("Unexpected action");
5666 }
5667
5668 r = sd_bus_message_new_method_call(
5669 bus,
5670 &m,
5671 "org.freedesktop.systemd1",
5672 "/org/freedesktop/systemd1",
5673 "org.freedesktop.systemd1.Manager",
5674 method);
5675 if (r < 0)
5676 return bus_log_create_error(r);
5677
5678 /* Note we use an extra-long timeout here. This is because a reload or reexec means generators are rerun which
5679 * are timed out after DEFAULT_TIMEOUT_USEC. Let's use twice that time here, so that the generators can have
5680 * their timeout, and for everything else there's the same time budget in place. */
5681
5682 r = sd_bus_call(bus, m, DEFAULT_TIMEOUT_USEC * 2, &error, NULL);
5683
5684 /* On reexecution, we expect a disconnect, not a reply */
5685 if (IN_SET(r, -ETIMEDOUT, -ECONNRESET) && streq(method, "Reexecute"))
5686 r = 0;
5687
5688 if (r < 0 && arg_action == ACTION_SYSTEMCTL)
5689 return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r));
5690
5691 /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the
5692 * old ways of doing things, hence don't log any error in that case here. */
5693
5694 return r < 0 ? r : 0;
5695 }
5696
5697 static int trivial_method(int argc, char *argv[], void *userdata) {
5698 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5699 const char *method;
5700 sd_bus *bus;
5701 int r;
5702
5703 if (arg_dry_run)
5704 return 0;
5705
5706 r = acquire_bus(BUS_MANAGER, &bus);
5707 if (r < 0)
5708 return r;
5709
5710 polkit_agent_open_maybe();
5711
5712 method =
5713 streq(argv[0], "clear-jobs") ||
5714 streq(argv[0], "cancel") ? "ClearJobs" :
5715 streq(argv[0], "reset-failed") ? "ResetFailed" :
5716 streq(argv[0], "halt") ? "Halt" :
5717 streq(argv[0], "reboot") ? "Reboot" :
5718 streq(argv[0], "kexec") ? "KExec" :
5719 streq(argv[0], "exit") ? "Exit" :
5720 /* poweroff */ "PowerOff";
5721
5722 r = sd_bus_call_method(
5723 bus,
5724 "org.freedesktop.systemd1",
5725 "/org/freedesktop/systemd1",
5726 "org.freedesktop.systemd1.Manager",
5727 method,
5728 &error,
5729 NULL,
5730 NULL);
5731 if (r < 0 && arg_action == ACTION_SYSTEMCTL)
5732 return log_error_errno(r, "Failed to execute operation: %s", bus_error_message(&error, r));
5733
5734 /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the
5735 * old ways of doing things, hence don't log any error in that case here. */
5736
5737 return r < 0 ? r : 0;
5738 }
5739
5740 static int reset_failed(int argc, char *argv[], void *userdata) {
5741 _cleanup_strv_free_ char **names = NULL;
5742 sd_bus *bus;
5743 char **name;
5744 int r, q;
5745
5746 if (argc <= 1)
5747 return trivial_method(argc, argv, userdata);
5748
5749 r = acquire_bus(BUS_MANAGER, &bus);
5750 if (r < 0)
5751 return r;
5752
5753 polkit_agent_open_maybe();
5754
5755 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
5756 if (r < 0)
5757 return log_error_errno(r, "Failed to expand names: %m");
5758
5759 STRV_FOREACH(name, names) {
5760 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5761
5762 q = sd_bus_call_method(
5763 bus,
5764 "org.freedesktop.systemd1",
5765 "/org/freedesktop/systemd1",
5766 "org.freedesktop.systemd1.Manager",
5767 "ResetFailedUnit",
5768 &error,
5769 NULL,
5770 "s", *name);
5771 if (q < 0) {
5772 log_error_errno(q, "Failed to reset failed state of unit %s: %s", *name, bus_error_message(&error, q));
5773 if (r == 0)
5774 r = q;
5775 }
5776 }
5777
5778 return r;
5779 }
5780
5781 static int print_variable(const char *s) {
5782 const char *sep;
5783 _cleanup_free_ char *esc = NULL;
5784
5785 sep = strchr(s, '=');
5786 if (!sep) {
5787 log_error("Invalid environment block");
5788 return -EUCLEAN;
5789 }
5790
5791 esc = shell_maybe_quote(sep + 1, ESCAPE_POSIX);
5792 if (!esc)
5793 return log_oom();
5794
5795 printf("%.*s=%s\n", (int)(sep-s), s, esc);
5796 return 0;
5797 }
5798
5799 static int show_environment(int argc, char *argv[], void *userdata) {
5800 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5801 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
5802 const char *text;
5803 sd_bus *bus;
5804 int r;
5805
5806 r = acquire_bus(BUS_MANAGER, &bus);
5807 if (r < 0)
5808 return r;
5809
5810 pager_open(arg_no_pager, false);
5811
5812 r = sd_bus_get_property(
5813 bus,
5814 "org.freedesktop.systemd1",
5815 "/org/freedesktop/systemd1",
5816 "org.freedesktop.systemd1.Manager",
5817 "Environment",
5818 &error,
5819 &reply,
5820 "as");
5821 if (r < 0)
5822 return log_error_errno(r, "Failed to get environment: %s", bus_error_message(&error, r));
5823
5824 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
5825 if (r < 0)
5826 return bus_log_parse_error(r);
5827
5828 while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0) {
5829 r = print_variable(text);
5830 if (r < 0)
5831 return r;
5832 }
5833 if (r < 0)
5834 return bus_log_parse_error(r);
5835
5836 r = sd_bus_message_exit_container(reply);
5837 if (r < 0)
5838 return bus_log_parse_error(r);
5839
5840 return 0;
5841 }
5842
5843 static int switch_root(int argc, char *argv[], void *userdata) {
5844 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5845 _cleanup_free_ char *cmdline_init = NULL;
5846 const char *root, *init;
5847 sd_bus *bus;
5848 int r;
5849
5850 if (arg_transport != BUS_TRANSPORT_LOCAL) {
5851 log_error("Cannot switch root remotely.");
5852 return -EINVAL;
5853 }
5854
5855 if (argc < 2 || argc > 3) {
5856 log_error("Wrong number of arguments.");
5857 return -EINVAL;
5858 }
5859
5860 root = argv[1];
5861
5862 if (argc >= 3)
5863 init = argv[2];
5864 else {
5865 r = parse_env_file("/proc/cmdline", WHITESPACE,
5866 "init", &cmdline_init,
5867 NULL);
5868 if (r < 0)
5869 log_debug_errno(r, "Failed to parse /proc/cmdline: %m");
5870
5871 init = cmdline_init;
5872 }
5873
5874 init = empty_to_null(init);
5875 if (init) {
5876 const char *root_systemd_path = NULL, *root_init_path = NULL;
5877
5878 root_systemd_path = strjoina(root, "/" SYSTEMD_BINARY_PATH);
5879 root_init_path = strjoina(root, "/", init);
5880
5881 /* If the passed init is actually the same as the
5882 * systemd binary, then let's suppress it. */
5883 if (files_same(root_init_path, root_systemd_path, 0) > 0)
5884 init = NULL;
5885 }
5886
5887 /* Instruct PID1 to exclude us from its killing spree applied during
5888 * the transition. Otherwise we would exit with a failure status even
5889 * though the switch to the new root has succeed. */
5890 argv_cmdline[0] = '@';
5891
5892 r = acquire_bus(BUS_MANAGER, &bus);
5893 if (r < 0)
5894 return r;
5895
5896 /* If we are slow to exit after the root switch, the new systemd instance
5897 * will send us a signal to terminate. Just ignore it and exit normally.
5898 * This way the unit does not end up as failed.
5899 */
5900 r = ignore_signals(SIGTERM, -1);
5901 if (r < 0)
5902 log_warning_errno(r, "Failed to change disposition of SIGTERM to ignore: %m");
5903
5904 log_debug("Switching root - root: %s; init: %s", root, strna(init));
5905
5906 r = sd_bus_call_method(
5907 bus,
5908 "org.freedesktop.systemd1",
5909 "/org/freedesktop/systemd1",
5910 "org.freedesktop.systemd1.Manager",
5911 "SwitchRoot",
5912 &error,
5913 NULL,
5914 "ss", root, init);
5915 if (r < 0) {
5916 (void) default_signals(SIGTERM, -1);
5917
5918 return log_error_errno(r, "Failed to switch root: %s", bus_error_message(&error, r));
5919 }
5920
5921 return 0;
5922 }
5923
5924 static int set_environment(int argc, char *argv[], void *userdata) {
5925 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5926 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5927 const char *method;
5928 sd_bus *bus;
5929 int r;
5930
5931 assert(argc > 1);
5932 assert(argv);
5933
5934 r = acquire_bus(BUS_MANAGER, &bus);
5935 if (r < 0)
5936 return r;
5937
5938 polkit_agent_open_maybe();
5939
5940 method = streq(argv[0], "set-environment")
5941 ? "SetEnvironment"
5942 : "UnsetEnvironment";
5943
5944 r = sd_bus_message_new_method_call(
5945 bus,
5946 &m,
5947 "org.freedesktop.systemd1",
5948 "/org/freedesktop/systemd1",
5949 "org.freedesktop.systemd1.Manager",
5950 method);
5951 if (r < 0)
5952 return bus_log_create_error(r);
5953
5954 r = sd_bus_message_append_strv(m, strv_skip(argv, 1));
5955 if (r < 0)
5956 return bus_log_create_error(r);
5957
5958 r = sd_bus_call(bus, m, 0, &error, NULL);
5959 if (r < 0)
5960 return log_error_errno(r, "Failed to set environment: %s", bus_error_message(&error, r));
5961
5962 return 0;
5963 }
5964
5965 static int import_environment(int argc, char *argv[], void *userdata) {
5966 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
5967 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
5968 sd_bus *bus;
5969 int r;
5970
5971 r = acquire_bus(BUS_MANAGER, &bus);
5972 if (r < 0)
5973 return r;
5974
5975 polkit_agent_open_maybe();
5976
5977 r = sd_bus_message_new_method_call(
5978 bus,
5979 &m,
5980 "org.freedesktop.systemd1",
5981 "/org/freedesktop/systemd1",
5982 "org.freedesktop.systemd1.Manager",
5983 "SetEnvironment");
5984 if (r < 0)
5985 return bus_log_create_error(r);
5986
5987 if (argc < 2)
5988 r = sd_bus_message_append_strv(m, environ);
5989 else {
5990 char **a, **b;
5991
5992 r = sd_bus_message_open_container(m, 'a', "s");
5993 if (r < 0)
5994 return bus_log_create_error(r);
5995
5996 STRV_FOREACH(a, strv_skip(argv, 1)) {
5997
5998 if (!env_name_is_valid(*a)) {
5999 log_error("Not a valid environment variable name: %s", *a);
6000 return -EINVAL;
6001 }
6002
6003 STRV_FOREACH(b, environ) {
6004 const char *eq;
6005
6006 eq = startswith(*b, *a);
6007 if (eq && *eq == '=') {
6008
6009 r = sd_bus_message_append(m, "s", *b);
6010 if (r < 0)
6011 return bus_log_create_error(r);
6012
6013 break;
6014 }
6015 }
6016 }
6017
6018 r = sd_bus_message_close_container(m);
6019 }
6020 if (r < 0)
6021 return bus_log_create_error(r);
6022
6023 r = sd_bus_call(bus, m, 0, &error, NULL);
6024 if (r < 0)
6025 return log_error_errno(r, "Failed to import environment: %s", bus_error_message(&error, r));
6026
6027 return 0;
6028 }
6029
6030 static int enable_sysv_units(const char *verb, char **args) {
6031 int r = 0;
6032
6033 #if HAVE_SYSV_COMPAT
6034 _cleanup_lookup_paths_free_ LookupPaths paths = {};
6035 unsigned f = 0;
6036
6037 /* Processes all SysV units, and reshuffles the array so that afterwards only the native units remain */
6038
6039 if (arg_scope != UNIT_FILE_SYSTEM)
6040 return 0;
6041
6042 if (getenv_bool("SYSTEMCTL_SKIP_SYSV") > 0)
6043 return 0;
6044
6045 if (!STR_IN_SET(verb,
6046 "enable",
6047 "disable",
6048 "is-enabled"))
6049 return 0;
6050
6051 r = lookup_paths_init(&paths, arg_scope, LOOKUP_PATHS_EXCLUDE_GENERATED, arg_root);
6052 if (r < 0)
6053 return r;
6054
6055 r = 0;
6056 while (args[f]) {
6057
6058 const char *argv[] = {
6059 ROOTLIBEXECDIR "/systemd-sysv-install",
6060 NULL,
6061 NULL,
6062 NULL,
6063 NULL,
6064 };
6065
6066 _cleanup_free_ char *p = NULL, *q = NULL, *l = NULL;
6067 bool found_native = false, found_sysv;
6068 const char *name;
6069 unsigned c = 1;
6070 pid_t pid;
6071 int j;
6072
6073 name = args[f++];
6074
6075 if (!endswith(name, ".service"))
6076 continue;
6077
6078 if (path_is_absolute(name))
6079 continue;
6080
6081 j = unit_file_exists(arg_scope, &paths, name);
6082 if (j < 0 && !IN_SET(j, -ELOOP, -ERFKILL, -EADDRNOTAVAIL))
6083 return log_error_errno(j, "Failed to lookup unit file state: %m");
6084 found_native = j != 0;
6085
6086 /* If we have both a native unit and a SysV script, enable/disable them both (below); for is-enabled,
6087 * prefer the native unit */
6088 if (found_native && streq(verb, "is-enabled"))
6089 continue;
6090
6091 p = path_join(arg_root, SYSTEM_SYSVINIT_PATH, name);
6092 if (!p)
6093 return log_oom();
6094
6095 p[strlen(p) - STRLEN(".service")] = 0;
6096 found_sysv = access(p, F_OK) >= 0;
6097 if (!found_sysv)
6098 continue;
6099
6100 if (!arg_quiet) {
6101 if (found_native)
6102 log_info("Synchronizing state of %s with SysV service script with %s.", name, argv[0]);
6103 else
6104 log_info("%s is not a native service, redirecting to systemd-sysv-install.", name);
6105 }
6106
6107 if (!isempty(arg_root))
6108 argv[c++] = q = strappend("--root=", arg_root);
6109
6110 argv[c++] = verb;
6111 argv[c++] = basename(p);
6112 argv[c] = NULL;
6113
6114 l = strv_join((char**)argv, " ");
6115 if (!l)
6116 return log_oom();
6117
6118 if (!arg_quiet)
6119 log_info("Executing: %s", l);
6120
6121 j = safe_fork("(sysv-install)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
6122 if (j < 0)
6123 return j;
6124 if (j == 0) {
6125 /* Child */
6126 execv(argv[0], (char**) argv);
6127 log_error_errno(errno, "Failed to execute %s: %m", argv[0]);
6128 _exit(EXIT_FAILURE);
6129 }
6130
6131 j = wait_for_terminate_and_check("sysv-install", pid, WAIT_LOG_ABNORMAL);
6132 if (j < 0)
6133 return j;
6134 if (streq(verb, "is-enabled")) {
6135 if (j == EXIT_SUCCESS) {
6136 if (!arg_quiet)
6137 puts("enabled");
6138 r = 1;
6139 } else {
6140 if (!arg_quiet)
6141 puts("disabled");
6142 }
6143
6144 } else if (j != EXIT_SUCCESS)
6145 return -EBADE; /* We don't warn here, under the assumption the script already showed an explanation */
6146
6147 if (found_native)
6148 continue;
6149
6150 /* Remove this entry, so that we don't try enabling it as native unit */
6151 assert(f > 0);
6152 f--;
6153 assert(args[f] == name);
6154 strv_remove(args, name);
6155 }
6156
6157 #endif
6158 return r;
6159 }
6160
6161 static int mangle_names(char **original_names, char ***mangled_names) {
6162 char **i, **l, **name;
6163 int r;
6164
6165 l = i = new(char*, strv_length(original_names) + 1);
6166 if (!l)
6167 return log_oom();
6168
6169 STRV_FOREACH(name, original_names) {
6170
6171 /* When enabling units qualified path names are OK,
6172 * too, hence allow them explicitly. */
6173
6174 if (is_path(*name)) {
6175 *i = strdup(*name);
6176 if (!*i) {
6177 strv_free(l);
6178 return log_oom();
6179 }
6180 } else {
6181 r = unit_name_mangle(*name, UNIT_NAME_NOGLOB, i);
6182 if (r < 0) {
6183 *i = NULL;
6184 strv_free(l);
6185 return log_error_errno(r, "Failed to mangle unit name: %m");
6186 }
6187 }
6188
6189 i++;
6190 }
6191
6192 *i = NULL;
6193 *mangled_names = l;
6194
6195 return 0;
6196 }
6197
6198 static int normalize_filenames(char **names) {
6199 char **u;
6200 int r;
6201
6202 STRV_FOREACH(u, names)
6203 if (!path_is_absolute(*u)) {
6204 char* normalized_path;
6205
6206 if (!isempty(arg_root)) {
6207 log_error("Non-absolute paths are not allowed when --root is used: %s", *u);
6208 return -EINVAL;
6209 }
6210
6211 if (!strchr(*u,'/')) {
6212 log_error("Link argument does contain at least one directory separator: %s", *u);
6213 return -EINVAL;
6214 }
6215
6216 r = path_make_absolute_cwd(*u, &normalized_path);
6217 if (r < 0)
6218 return r;
6219
6220 free_and_replace(*u, normalized_path);
6221 }
6222
6223 return 0;
6224 }
6225
6226 static int normalize_names(char **names, bool warn_if_path) {
6227 char **u;
6228 bool was_path = false;
6229
6230 STRV_FOREACH(u, names) {
6231 int r;
6232
6233 if (!is_path(*u))
6234 continue;
6235
6236 r = free_and_strdup(u, basename(*u));
6237 if (r < 0)
6238 return log_error_errno(r, "Failed to normalize unit file path: %m");
6239
6240 was_path = true;
6241 }
6242
6243 if (warn_if_path && was_path)
6244 log_warning("Warning: Can't execute disable on the unit file path. Proceeding with the unit name.");
6245
6246 return 0;
6247 }
6248
6249 static int unit_exists(LookupPaths *lp, const char *unit) {
6250 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6251 _cleanup_free_ char *path = NULL;
6252 static const struct bus_properties_map property_map[] = {
6253 { "LoadState", "s", map_string_no_copy, offsetof(UnitStatusInfo, load_state) },
6254 { "ActiveState", "s", map_string_no_copy, offsetof(UnitStatusInfo, active_state)},
6255 {},
6256 };
6257 UnitStatusInfo info = {};
6258 sd_bus *bus;
6259 int r;
6260
6261 if (unit_name_is_valid(unit, UNIT_NAME_TEMPLATE))
6262 return unit_find_template_path(unit, lp, NULL, NULL);
6263
6264 path = unit_dbus_path_from_name(unit);
6265 if (!path)
6266 return log_oom();
6267
6268 r = acquire_bus(BUS_MANAGER, &bus);
6269 if (r < 0)
6270 return r;
6271
6272 r = bus_map_all_properties(bus, "org.freedesktop.systemd1", path, property_map, &error, &info);
6273 if (r < 0)
6274 return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r));
6275
6276 return !streq_ptr(info.load_state, "not-found") || !streq_ptr(info.active_state, "inactive");
6277 }
6278
6279 static int enable_unit(int argc, char *argv[], void *userdata) {
6280 _cleanup_strv_free_ char **names = NULL;
6281 const char *verb = argv[0];
6282 UnitFileChange *changes = NULL;
6283 unsigned n_changes = 0;
6284 int carries_install_info = -1;
6285 bool ignore_carries_install_info = arg_quiet;
6286 int r;
6287
6288 if (!argv[1])
6289 return 0;
6290
6291 r = mangle_names(strv_skip(argv, 1), &names);
6292 if (r < 0)
6293 return r;
6294
6295 r = enable_sysv_units(verb, names);
6296 if (r < 0)
6297 return r;
6298
6299 /* If the operation was fully executed by the SysV compat, let's finish early */
6300 if (strv_isempty(names)) {
6301 if (arg_no_reload || install_client_side())
6302 return 0;
6303 return daemon_reload(argc, argv, userdata);
6304 }
6305
6306 if (streq(verb, "disable")) {
6307 r = normalize_names(names, true);
6308 if (r < 0)
6309 return r;
6310 }
6311
6312 if (streq(verb, "link")) {
6313 r = normalize_filenames(names);
6314 if (r < 0)
6315 return r;
6316 }
6317
6318 if (install_client_side()) {
6319 UnitFileFlags flags;
6320
6321 flags = args_to_flags();
6322 if (streq(verb, "enable")) {
6323 r = unit_file_enable(arg_scope, flags, arg_root, names, &changes, &n_changes);
6324 carries_install_info = r;
6325 } else if (streq(verb, "disable"))
6326 r = unit_file_disable(arg_scope, flags, arg_root, names, &changes, &n_changes);
6327 else if (streq(verb, "reenable")) {
6328 r = unit_file_reenable(arg_scope, flags, arg_root, names, &changes, &n_changes);
6329 carries_install_info = r;
6330 } else if (streq(verb, "link"))
6331 r = unit_file_link(arg_scope, flags, arg_root, names, &changes, &n_changes);
6332 else if (streq(verb, "preset")) {
6333 r = unit_file_preset(arg_scope, flags, arg_root, names, arg_preset_mode, &changes, &n_changes);
6334 } else if (streq(verb, "mask"))
6335 r = unit_file_mask(arg_scope, flags, arg_root, names, &changes, &n_changes);
6336 else if (streq(verb, "unmask"))
6337 r = unit_file_unmask(arg_scope, flags, arg_root, names, &changes, &n_changes);
6338 else if (streq(verb, "revert"))
6339 r = unit_file_revert(arg_scope, arg_root, names, &changes, &n_changes);
6340 else
6341 assert_not_reached("Unknown verb");
6342
6343 unit_file_dump_changes(r, verb, changes, n_changes, arg_quiet);
6344 if (r < 0)
6345 goto finish;
6346 r = 0;
6347 } else {
6348 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL;
6349 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6350 bool expect_carries_install_info = false;
6351 bool send_runtime = true, send_force = true, send_preset_mode = false;
6352 const char *method;
6353 sd_bus *bus;
6354
6355 if (STR_IN_SET(verb, "mask", "unmask")) {
6356 char **name;
6357 _cleanup_lookup_paths_free_ LookupPaths lp = {};
6358
6359 r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
6360 if (r < 0)
6361 return r;
6362
6363 STRV_FOREACH(name, names) {
6364 r = unit_exists(&lp, *name);
6365 if (r < 0)
6366 return r;
6367 if (r == 0)
6368 log_notice("Unit %s does not exist, proceeding anyway.", *names);
6369 }
6370 }
6371
6372 r = acquire_bus(BUS_MANAGER, &bus);
6373 if (r < 0)
6374 return r;
6375
6376 polkit_agent_open_maybe();
6377
6378 if (streq(verb, "enable")) {
6379 method = "EnableUnitFiles";
6380 expect_carries_install_info = true;
6381 } else if (streq(verb, "disable")) {
6382 method = "DisableUnitFiles";
6383 send_force = false;
6384 } else if (streq(verb, "reenable")) {
6385 method = "ReenableUnitFiles";
6386 expect_carries_install_info = true;
6387 } else if (streq(verb, "link"))
6388 method = "LinkUnitFiles";
6389 else if (streq(verb, "preset")) {
6390
6391 if (arg_preset_mode != UNIT_FILE_PRESET_FULL) {
6392 method = "PresetUnitFilesWithMode";
6393 send_preset_mode = true;
6394 } else
6395 method = "PresetUnitFiles";
6396
6397 expect_carries_install_info = true;
6398 ignore_carries_install_info = true;
6399 } else if (streq(verb, "mask"))
6400 method = "MaskUnitFiles";
6401 else if (streq(verb, "unmask")) {
6402 method = "UnmaskUnitFiles";
6403 send_force = false;
6404 } else if (streq(verb, "revert")) {
6405 method = "RevertUnitFiles";
6406 send_runtime = send_force = false;
6407 } else
6408 assert_not_reached("Unknown verb");
6409
6410 r = sd_bus_message_new_method_call(
6411 bus,
6412 &m,
6413 "org.freedesktop.systemd1",
6414 "/org/freedesktop/systemd1",
6415 "org.freedesktop.systemd1.Manager",
6416 method);
6417 if (r < 0)
6418 return bus_log_create_error(r);
6419
6420 r = sd_bus_message_append_strv(m, names);
6421 if (r < 0)
6422 return bus_log_create_error(r);
6423
6424 if (send_preset_mode) {
6425 r = sd_bus_message_append(m, "s", unit_file_preset_mode_to_string(arg_preset_mode));
6426 if (r < 0)
6427 return bus_log_create_error(r);
6428 }
6429
6430 if (send_runtime) {
6431 r = sd_bus_message_append(m, "b", arg_runtime);
6432 if (r < 0)
6433 return bus_log_create_error(r);
6434 }
6435
6436 if (send_force) {
6437 r = sd_bus_message_append(m, "b", arg_force);
6438 if (r < 0)
6439 return bus_log_create_error(r);
6440 }
6441
6442 r = sd_bus_call(bus, m, 0, &error, &reply);
6443 if (r < 0)
6444 return log_error_errno(r, "Failed to %s unit: %s", verb, bus_error_message(&error, r));
6445
6446 if (expect_carries_install_info) {
6447 r = sd_bus_message_read(reply, "b", &carries_install_info);
6448 if (r < 0)
6449 return bus_log_parse_error(r);
6450 }
6451
6452 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
6453 if (r < 0)
6454 goto finish;
6455
6456 /* Try to reload if enabled */
6457 if (!arg_no_reload)
6458 r = daemon_reload(argc, argv, userdata);
6459 else
6460 r = 0;
6461 }
6462
6463 if (carries_install_info == 0 && !ignore_carries_install_info)
6464 log_warning("The unit files have no installation config (WantedBy, RequiredBy, Also, Alias\n"
6465 "settings in the [Install] section, and DefaultInstance for template units).\n"
6466 "This means they are not meant to be enabled using systemctl.\n"
6467 "Possible reasons for having this kind of units are:\n"
6468 "1) A unit may be statically enabled by being symlinked from another unit's\n"
6469 " .wants/ or .requires/ directory.\n"
6470 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
6471 " a requirement dependency on it.\n"
6472 "3) A unit may be started when needed via activation (socket, path, timer,\n"
6473 " D-Bus, udev, scripted systemctl call, ...).\n"
6474 "4) In case of template units, the unit is meant to be enabled with some\n"
6475 " instance name specified.");
6476
6477 if (arg_now && STR_IN_SET(argv[0], "enable", "disable", "mask")) {
6478 sd_bus *bus;
6479 unsigned len, i;
6480
6481 r = acquire_bus(BUS_MANAGER, &bus);
6482 if (r < 0)
6483 goto finish;
6484
6485 len = strv_length(names);
6486 {
6487 char *new_args[len + 2];
6488
6489 new_args[0] = (char*) (streq(argv[0], "enable") ? "start" : "stop");
6490 for (i = 0; i < len; i++)
6491 new_args[i + 1] = basename(names[i]);
6492 new_args[i + 1] = NULL;
6493
6494 r = start_unit(len + 1, new_args, userdata);
6495 }
6496 }
6497
6498 finish:
6499 unit_file_changes_free(changes, n_changes);
6500
6501 return r;
6502 }
6503
6504 static int add_dependency(int argc, char *argv[], void *userdata) {
6505 _cleanup_strv_free_ char **names = NULL;
6506 _cleanup_free_ char *target = NULL;
6507 const char *verb = argv[0];
6508 UnitFileChange *changes = NULL;
6509 unsigned n_changes = 0;
6510 UnitDependency dep;
6511 int r = 0;
6512
6513 if (!argv[1])
6514 return 0;
6515
6516 r = unit_name_mangle_with_suffix(argv[1], UNIT_NAME_NOGLOB, ".target", &target);
6517 if (r < 0)
6518 return log_error_errno(r, "Failed to mangle unit name: %m");
6519
6520 r = mangle_names(strv_skip(argv, 2), &names);
6521 if (r < 0)
6522 return r;
6523
6524 if (streq(verb, "add-wants"))
6525 dep = UNIT_WANTS;
6526 else if (streq(verb, "add-requires"))
6527 dep = UNIT_REQUIRES;
6528 else
6529 assert_not_reached("Unknown verb");
6530
6531 if (install_client_side()) {
6532 r = unit_file_add_dependency(arg_scope, args_to_flags(), arg_root, names, target, dep, &changes, &n_changes);
6533 unit_file_dump_changes(r, "add dependency on", changes, n_changes, arg_quiet);
6534
6535 if (r > 0)
6536 r = 0;
6537 } else {
6538 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL;
6539 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6540 sd_bus *bus;
6541
6542 r = acquire_bus(BUS_MANAGER, &bus);
6543 if (r < 0)
6544 return r;
6545
6546 polkit_agent_open_maybe();
6547
6548 r = sd_bus_message_new_method_call(
6549 bus,
6550 &m,
6551 "org.freedesktop.systemd1",
6552 "/org/freedesktop/systemd1",
6553 "org.freedesktop.systemd1.Manager",
6554 "AddDependencyUnitFiles");
6555 if (r < 0)
6556 return bus_log_create_error(r);
6557
6558 r = sd_bus_message_append_strv(m, names);
6559 if (r < 0)
6560 return bus_log_create_error(r);
6561
6562 r = sd_bus_message_append(m, "ssbb", target, unit_dependency_to_string(dep), arg_runtime, arg_force);
6563 if (r < 0)
6564 return bus_log_create_error(r);
6565
6566 r = sd_bus_call(bus, m, 0, &error, &reply);
6567 if (r < 0)
6568 return log_error_errno(r, "Failed to add dependency: %s", bus_error_message(&error, r));
6569
6570 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
6571 if (r < 0)
6572 goto finish;
6573
6574 if (arg_no_reload) {
6575 r = 0;
6576 goto finish;
6577 }
6578
6579 r = daemon_reload(argc, argv, userdata);
6580 }
6581
6582 finish:
6583 unit_file_changes_free(changes, n_changes);
6584
6585 return r;
6586 }
6587
6588 static int preset_all(int argc, char *argv[], void *userdata) {
6589 UnitFileChange *changes = NULL;
6590 unsigned n_changes = 0;
6591 int r;
6592
6593 if (install_client_side()) {
6594 r = unit_file_preset_all(arg_scope, args_to_flags(), arg_root, arg_preset_mode, &changes, &n_changes);
6595 unit_file_dump_changes(r, "preset", changes, n_changes, arg_quiet);
6596
6597 if (r > 0)
6598 r = 0;
6599 } else {
6600 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6601 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
6602 sd_bus *bus;
6603
6604 r = acquire_bus(BUS_MANAGER, &bus);
6605 if (r < 0)
6606 return r;
6607
6608 polkit_agent_open_maybe();
6609
6610 r = sd_bus_call_method(
6611 bus,
6612 "org.freedesktop.systemd1",
6613 "/org/freedesktop/systemd1",
6614 "org.freedesktop.systemd1.Manager",
6615 "PresetAllUnitFiles",
6616 &error,
6617 &reply,
6618 "sbb",
6619 unit_file_preset_mode_to_string(arg_preset_mode),
6620 arg_runtime,
6621 arg_force);
6622 if (r < 0)
6623 return log_error_errno(r, "Failed to preset all units: %s", bus_error_message(&error, r));
6624
6625 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
6626 if (r < 0)
6627 goto finish;
6628
6629 if (arg_no_reload) {
6630 r = 0;
6631 goto finish;
6632 }
6633
6634 r = daemon_reload(argc, argv, userdata);
6635 }
6636
6637 finish:
6638 unit_file_changes_free(changes, n_changes);
6639
6640 return r;
6641 }
6642
6643 static int show_installation_targets_client_side(const char *name) {
6644 UnitFileChange *changes = NULL;
6645 unsigned n_changes = 0, i;
6646 UnitFileFlags flags;
6647 char **p;
6648 int r;
6649
6650 p = STRV_MAKE(name);
6651 flags = UNIT_FILE_DRY_RUN |
6652 (arg_runtime ? UNIT_FILE_RUNTIME : 0);
6653
6654 r = unit_file_disable(UNIT_FILE_SYSTEM, flags, NULL, p, &changes, &n_changes);
6655 if (r < 0)
6656 return log_error_errno(r, "Failed to get file links for %s: %m", name);
6657
6658 for (i = 0; i < n_changes; i++)
6659 if (changes[i].type == UNIT_FILE_UNLINK)
6660 printf(" %s\n", changes[i].path);
6661
6662 return 0;
6663 }
6664
6665 static int show_installation_targets(sd_bus *bus, const char *name) {
6666 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
6667 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6668 const char *link;
6669 int r;
6670
6671 r = sd_bus_call_method(
6672 bus,
6673 "org.freedesktop.systemd1",
6674 "/org/freedesktop/systemd1",
6675 "org.freedesktop.systemd1.Manager",
6676 "GetUnitFileLinks",
6677 &error,
6678 &reply,
6679 "sb", name, arg_runtime);
6680 if (r < 0)
6681 return log_error_errno(r, "Failed to get unit file links for %s: %s", name, bus_error_message(&error, r));
6682
6683 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
6684 if (r < 0)
6685 return bus_log_parse_error(r);
6686
6687 while ((r = sd_bus_message_read(reply, "s", &link)) > 0)
6688 printf(" %s\n", link);
6689
6690 if (r < 0)
6691 return bus_log_parse_error(r);
6692
6693 r = sd_bus_message_exit_container(reply);
6694 if (r < 0)
6695 return bus_log_parse_error(r);
6696
6697 return 0;
6698 }
6699
6700 static int unit_is_enabled(int argc, char *argv[], void *userdata) {
6701
6702 _cleanup_strv_free_ char **names = NULL;
6703 bool enabled;
6704 char **name;
6705 int r;
6706
6707 r = mangle_names(strv_skip(argv, 1), &names);
6708 if (r < 0)
6709 return r;
6710
6711 r = enable_sysv_units(argv[0], names);
6712 if (r < 0)
6713 return r;
6714
6715 enabled = r > 0;
6716
6717 if (install_client_side()) {
6718 STRV_FOREACH(name, names) {
6719 UnitFileState state;
6720
6721 r = unit_file_get_state(arg_scope, arg_root, *name, &state);
6722 if (r < 0)
6723 return log_error_errno(r, "Failed to get unit file state for %s: %m", *name);
6724
6725 if (IN_SET(state,
6726 UNIT_FILE_ENABLED,
6727 UNIT_FILE_ENABLED_RUNTIME,
6728 UNIT_FILE_STATIC,
6729 UNIT_FILE_INDIRECT,
6730 UNIT_FILE_GENERATED))
6731 enabled = true;
6732
6733 if (!arg_quiet) {
6734 puts(unit_file_state_to_string(state));
6735 if (arg_full) {
6736 r = show_installation_targets_client_side(*name);
6737 if (r < 0)
6738 return r;
6739 }
6740 }
6741 }
6742
6743 r = 0;
6744 } else {
6745 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
6746 sd_bus *bus;
6747
6748 r = acquire_bus(BUS_MANAGER, &bus);
6749 if (r < 0)
6750 return r;
6751
6752 STRV_FOREACH(name, names) {
6753 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
6754 const char *s;
6755
6756 r = sd_bus_call_method(
6757 bus,
6758 "org.freedesktop.systemd1",
6759 "/org/freedesktop/systemd1",
6760 "org.freedesktop.systemd1.Manager",
6761 "GetUnitFileState",
6762 &error,
6763 &reply,
6764 "s", *name);
6765 if (r < 0)
6766 return log_error_errno(r, "Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
6767
6768 r = sd_bus_message_read(reply, "s", &s);
6769 if (r < 0)
6770 return bus_log_parse_error(r);
6771
6772 if (STR_IN_SET(s, "enabled", "enabled-runtime", "static", "indirect", "generated"))
6773 enabled = true;
6774
6775 if (!arg_quiet) {
6776 puts(s);
6777 if (arg_full) {
6778 r = show_installation_targets(bus, *name);
6779 if (r < 0)
6780 return r;
6781 }
6782 }
6783 }
6784 }
6785
6786 return enabled ? EXIT_SUCCESS : EXIT_FAILURE;
6787 }
6788
6789 static int is_system_running(int argc, char *argv[], void *userdata) {
6790 _cleanup_free_ char *state = NULL;
6791 sd_bus *bus;
6792 int r;
6793
6794 if (running_in_chroot() > 0 || (arg_transport == BUS_TRANSPORT_LOCAL && !sd_booted())) {
6795 if (!arg_quiet)
6796 puts("offline");
6797 return EXIT_FAILURE;
6798 }
6799
6800 r = acquire_bus(BUS_MANAGER, &bus);
6801 if (r < 0)
6802 return r;
6803
6804 r = sd_bus_get_property_string(
6805 bus,
6806 "org.freedesktop.systemd1",
6807 "/org/freedesktop/systemd1",
6808 "org.freedesktop.systemd1.Manager",
6809 "SystemState",
6810 NULL,
6811 &state);
6812 if (r < 0) {
6813 if (!arg_quiet)
6814 puts("unknown");
6815 return 0;
6816 }
6817
6818 if (!arg_quiet)
6819 puts(state);
6820
6821 return streq(state, "running") ? EXIT_SUCCESS : EXIT_FAILURE;
6822 }
6823
6824 static int create_edit_temp_file(const char *new_path, const char *original_path, char **ret_tmp_fn) {
6825 _cleanup_free_ char *t = NULL;
6826 int r;
6827
6828 assert(new_path);
6829 assert(original_path);
6830 assert(ret_tmp_fn);
6831
6832 r = tempfn_random(new_path, NULL, &t);
6833 if (r < 0)
6834 return log_error_errno(r, "Failed to determine temporary filename for \"%s\": %m", new_path);
6835
6836 r = mkdir_parents(new_path, 0755);
6837 if (r < 0)
6838 return log_error_errno(r, "Failed to create directories for \"%s\": %m", new_path);
6839
6840 r = copy_file(original_path, t, 0, 0644, 0, COPY_REFLINK);
6841 if (r == -ENOENT) {
6842
6843 r = touch(t);
6844 if (r < 0)
6845 return log_error_errno(r, "Failed to create temporary file \"%s\": %m", t);
6846
6847 } else if (r < 0)
6848 return log_error_errno(r, "Failed to create temporary file for \"%s\": %m", new_path);
6849
6850 *ret_tmp_fn = t;
6851 t = NULL;
6852
6853 return 0;
6854 }
6855
6856 static int get_file_to_edit(
6857 const LookupPaths *paths,
6858 const char *name,
6859 char **ret_path) {
6860
6861 _cleanup_free_ char *path = NULL, *run = NULL;
6862
6863 assert(name);
6864 assert(ret_path);
6865
6866 path = strjoin(paths->persistent_config, "/", name);
6867 if (!path)
6868 return log_oom();
6869
6870 if (arg_runtime) {
6871 run = strjoin(paths->runtime_config, "/", name);
6872 if (!run)
6873 return log_oom();
6874 }
6875
6876 if (arg_runtime) {
6877 if (access(path, F_OK) >= 0) {
6878 log_error("Refusing to create \"%s\" because it would be overridden by \"%s\" anyway.", run, path);
6879 return -EEXIST;
6880 }
6881
6882 *ret_path = run;
6883 run = NULL;
6884 } else {
6885 *ret_path = path;
6886 path = NULL;
6887 }
6888
6889 return 0;
6890 }
6891
6892 static int unit_file_create_new(
6893 const LookupPaths *paths,
6894 const char *unit_name,
6895 const char *suffix,
6896 char **ret_new_path,
6897 char **ret_tmp_path) {
6898
6899 char *tmp_new_path, *tmp_tmp_path, *ending;
6900 int r;
6901
6902 assert(unit_name);
6903 assert(ret_new_path);
6904 assert(ret_tmp_path);
6905
6906 ending = strjoina(unit_name, suffix);
6907 r = get_file_to_edit(paths, ending, &tmp_new_path);
6908 if (r < 0)
6909 return r;
6910
6911 r = create_edit_temp_file(tmp_new_path, tmp_new_path, &tmp_tmp_path);
6912 if (r < 0) {
6913 free(tmp_new_path);
6914 return r;
6915 }
6916
6917 *ret_new_path = tmp_new_path;
6918 *ret_tmp_path = tmp_tmp_path;
6919
6920 return 0;
6921 }
6922
6923 static int unit_file_create_copy(
6924 const LookupPaths *paths,
6925 const char *unit_name,
6926 const char *fragment_path,
6927 char **ret_new_path,
6928 char **ret_tmp_path) {
6929
6930 char *tmp_new_path, *tmp_tmp_path;
6931 int r;
6932
6933 assert(fragment_path);
6934 assert(unit_name);
6935 assert(ret_new_path);
6936 assert(ret_tmp_path);
6937
6938 r = get_file_to_edit(paths, unit_name, &tmp_new_path);
6939 if (r < 0)
6940 return r;
6941
6942 if (!path_equal(fragment_path, tmp_new_path) && access(tmp_new_path, F_OK) == 0) {
6943 char response;
6944
6945 r = ask_char(&response, "yn", "\"%s\" already exists. Overwrite with \"%s\"? [(y)es, (n)o] ", tmp_new_path, fragment_path);
6946 if (r < 0) {
6947 free(tmp_new_path);
6948 return r;
6949 }
6950 if (response != 'y') {
6951 log_warning("%s ignored", unit_name);
6952 free(tmp_new_path);
6953 return -EKEYREJECTED;
6954 }
6955 }
6956
6957 r = create_edit_temp_file(tmp_new_path, fragment_path, &tmp_tmp_path);
6958 if (r < 0) {
6959 free(tmp_new_path);
6960 return r;
6961 }
6962
6963 *ret_new_path = tmp_new_path;
6964 *ret_tmp_path = tmp_tmp_path;
6965
6966 return 0;
6967 }
6968
6969 static int run_editor(char **paths) {
6970 int r;
6971
6972 assert(paths);
6973
6974 r = safe_fork("(editor)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
6975 if (r < 0)
6976 return r;
6977 if (r == 0) {
6978 const char **args;
6979 char *editor, **editor_args = NULL;
6980 char **tmp_path, **original_path, *p;
6981 unsigned n_editor_args = 0, i = 1;
6982 size_t argc;
6983
6984 argc = strv_length(paths)/2 + 1;
6985
6986 /* SYSTEMD_EDITOR takes precedence over EDITOR which takes precedence over VISUAL
6987 * If neither SYSTEMD_EDITOR nor EDITOR nor VISUAL are present,
6988 * we try to execute well known editors
6989 */
6990 editor = getenv("SYSTEMD_EDITOR");
6991 if (!editor)
6992 editor = getenv("EDITOR");
6993 if (!editor)
6994 editor = getenv("VISUAL");
6995
6996 if (!isempty(editor)) {
6997 editor_args = strv_split(editor, WHITESPACE);
6998 if (!editor_args) {
6999 (void) log_oom();
7000 _exit(EXIT_FAILURE);
7001 }
7002 n_editor_args = strv_length(editor_args);
7003 argc += n_editor_args - 1;
7004 }
7005 args = newa(const char*, argc + 1);
7006
7007 if (n_editor_args > 0) {
7008 args[0] = editor_args[0];
7009 for (; i < n_editor_args; i++)
7010 args[i] = editor_args[i];
7011 }
7012
7013 STRV_FOREACH_PAIR(original_path, tmp_path, paths) {
7014 args[i] = *tmp_path;
7015 i++;
7016 }
7017 args[i] = NULL;
7018
7019 if (n_editor_args > 0)
7020 execvp(args[0], (char* const*) args);
7021
7022 FOREACH_STRING(p, "editor", "nano", "vim", "vi") {
7023 args[0] = p;
7024 execvp(p, (char* const*) args);
7025 /* We do not fail if the editor doesn't exist
7026 * because we want to try each one of them before
7027 * failing.
7028 */
7029 if (errno != ENOENT) {
7030 log_error_errno(errno, "Failed to execute %s: %m", editor);
7031 _exit(EXIT_FAILURE);
7032 }
7033 }
7034
7035 log_error("Cannot edit unit(s), no editor available. Please set either $SYSTEMD_EDITOR, $EDITOR or $VISUAL.");
7036 _exit(EXIT_FAILURE);
7037 }
7038
7039 return 0;
7040 }
7041
7042 static int find_paths_to_edit(sd_bus *bus, char **names, char ***paths) {
7043 _cleanup_lookup_paths_free_ LookupPaths lp = {};
7044 char **name;
7045 int r;
7046
7047 assert(names);
7048 assert(paths);
7049
7050 r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
7051 if (r < 0)
7052 return r;
7053
7054 STRV_FOREACH(name, names) {
7055 _cleanup_free_ char *path = NULL, *new_path = NULL, *tmp_path = NULL, *tmp_name = NULL;
7056 const char *unit_name;
7057
7058 r = unit_find_paths(bus, *name, &lp, &path, NULL);
7059 if (r < 0)
7060 return r;
7061
7062 if (r == 0) {
7063 assert(!path);
7064
7065 if (!arg_force) {
7066 log_error("Run 'systemctl edit%s --force %s' to create a new unit.",
7067 arg_scope == UNIT_FILE_GLOBAL ? " --global" :
7068 arg_scope == UNIT_FILE_USER ? " --user" : "",
7069 *name);
7070 return -ENOENT;
7071 }
7072
7073 /* Create a new unit from scratch */
7074 unit_name = *name;
7075 r = unit_file_create_new(&lp, unit_name,
7076 arg_full ? NULL : ".d/override.conf",
7077 &new_path, &tmp_path);
7078 } else {
7079 assert(path);
7080
7081 unit_name = basename(path);
7082 /* We follow unit aliases, but we need to propagate the instance */
7083 if (unit_name_is_valid(*name, UNIT_NAME_INSTANCE) &&
7084 unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
7085 _cleanup_free_ char *instance = NULL;
7086
7087 r = unit_name_to_instance(*name, &instance);
7088 if (r < 0)
7089 return r;
7090
7091 r = unit_name_replace_instance(unit_name, instance, &tmp_name);
7092 if (r < 0)
7093 return r;
7094
7095 unit_name = tmp_name;
7096 }
7097
7098 if (arg_full)
7099 r = unit_file_create_copy(&lp, unit_name, path, &new_path, &tmp_path);
7100 else
7101 r = unit_file_create_new(&lp, unit_name, ".d/override.conf", &new_path, &tmp_path);
7102 }
7103 if (r < 0)
7104 return r;
7105
7106 r = strv_push_pair(paths, new_path, tmp_path);
7107 if (r < 0)
7108 return log_oom();
7109 new_path = tmp_path = NULL;
7110 }
7111
7112 return 0;
7113 }
7114
7115 static int edit(int argc, char *argv[], void *userdata) {
7116 _cleanup_strv_free_ char **names = NULL;
7117 _cleanup_strv_free_ char **paths = NULL;
7118 char **original, **tmp;
7119 sd_bus *bus;
7120 int r;
7121
7122 if (!on_tty()) {
7123 log_error("Cannot edit units if not on a tty.");
7124 return -EINVAL;
7125 }
7126
7127 if (arg_transport != BUS_TRANSPORT_LOCAL) {
7128 log_error("Cannot edit units remotely.");
7129 return -EINVAL;
7130 }
7131
7132 r = acquire_bus(BUS_MANAGER, &bus);
7133 if (r < 0)
7134 return r;
7135
7136 r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
7137 if (r < 0)
7138 return log_error_errno(r, "Failed to expand names: %m");
7139
7140 r = find_paths_to_edit(bus, names, &paths);
7141 if (r < 0)
7142 return r;
7143
7144 if (strv_isempty(paths))
7145 return -ENOENT;
7146
7147 r = run_editor(paths);
7148 if (r < 0)
7149 goto end;
7150
7151 STRV_FOREACH_PAIR(original, tmp, paths) {
7152 /* If the temporary file is empty we ignore it. It's
7153 * useful if the user wants to cancel its modification
7154 */
7155 if (null_or_empty_path(*tmp)) {
7156 log_warning("Editing \"%s\" canceled: temporary file is empty.", *original);
7157 continue;
7158 }
7159
7160 r = rename(*tmp, *original);
7161 if (r < 0) {
7162 r = log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", *tmp, *original);
7163 goto end;
7164 }
7165 }
7166
7167 r = 0;
7168
7169 if (!arg_no_reload && !install_client_side())
7170 r = daemon_reload(argc, argv, userdata);
7171
7172 end:
7173 STRV_FOREACH_PAIR(original, tmp, paths) {
7174 (void) unlink(*tmp);
7175
7176 /* Removing empty dropin dirs */
7177 if (!arg_full) {
7178 _cleanup_free_ char *dir;
7179
7180 dir = dirname_malloc(*original);
7181 if (!dir)
7182 return log_oom();
7183
7184 /* no need to check if the dir is empty, rmdir
7185 * does nothing if it is not the case.
7186 */
7187 (void) rmdir(dir);
7188 }
7189 }
7190
7191 return r;
7192 }
7193
7194 static void systemctl_help(void) {
7195
7196 pager_open(arg_no_pager, false);
7197
7198 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
7199 "Query or send control commands to the systemd manager.\n\n"
7200 " -h --help Show this help\n"
7201 " --version Show package version\n"
7202 " --system Connect to system manager\n"
7203 " --user Connect to user service manager\n"
7204 " -H --host=[USER@]HOST\n"
7205 " Operate on remote host\n"
7206 " -M --machine=CONTAINER\n"
7207 " Operate on local container\n"
7208 " -t --type=TYPE List units of a particular type\n"
7209 " --state=STATE List units with particular LOAD or SUB or ACTIVE state\n"
7210 " -p --property=NAME Show only properties by this name\n"
7211 " -a --all Show all properties/all units currently in memory,\n"
7212 " including dead/empty ones. To list all units installed on\n"
7213 " the system, use the 'list-unit-files' command instead.\n"
7214 " --failed Same as --state=failed\n"
7215 " -l --full Don't ellipsize unit names on output\n"
7216 " -r --recursive Show unit list of host and local containers\n"
7217 " --reverse Show reverse dependencies with 'list-dependencies'\n"
7218 " --job-mode=MODE Specify how to deal with already queued jobs, when\n"
7219 " queueing a new job\n"
7220 " --show-types When showing sockets, explicitly show their type\n"
7221 " --value When showing properties, only print the value\n"
7222 " -i --ignore-inhibitors\n"
7223 " When shutting down or sleeping, ignore inhibitors\n"
7224 " --kill-who=WHO Who to send signal to\n"
7225 " -s --signal=SIGNAL Which signal to send\n"
7226 " --now Start or stop unit in addition to enabling or disabling it\n"
7227 " --dry-run Only print what would be done\n"
7228 " -q --quiet Suppress output\n"
7229 " --wait For (re)start, wait until service stopped again\n"
7230 " --no-block Do not wait until operation finished\n"
7231 " --no-wall Don't send wall message before halt/power-off/reboot\n"
7232 " --no-reload Don't reload daemon after en-/dis-abling unit files\n"
7233 " --no-legend Do not print a legend (column headers and hints)\n"
7234 " --no-pager Do not pipe output into a pager\n"
7235 " --no-ask-password\n"
7236 " Do not ask for system passwords\n"
7237 " --global Enable/disable/mask unit files globally\n"
7238 " --runtime Enable/disable/mask unit files temporarily until next\n"
7239 " reboot\n"
7240 " -f --force When enabling unit files, override existing symlinks\n"
7241 " When shutting down, execute action immediately\n"
7242 " --preset-mode= Apply only enable, only disable, or all presets\n"
7243 " --root=PATH Enable/disable/mask unit files in the specified root\n"
7244 " directory\n"
7245 " -n --lines=INTEGER Number of journal entries to show\n"
7246 " -o --output=STRING Change journal output mode (short, short-precise,\n"
7247 " short-iso, short-iso-precise, short-full,\n"
7248 " short-monotonic, short-unix,\n"
7249 " verbose, export, json, json-pretty, json-sse, cat)\n"
7250 " --firmware-setup Tell the firmware to show the setup menu on next boot\n"
7251 " --plain Print unit dependencies as a list instead of a tree\n\n"
7252 "Unit Commands:\n"
7253 " list-units [PATTERN...] List units currently in memory\n"
7254 " list-sockets [PATTERN...] List socket units currently in memory, ordered\n"
7255 " by address\n"
7256 " list-timers [PATTERN...] List timer units currently in memory, ordered\n"
7257 " by next elapse\n"
7258 " start NAME... Start (activate) one or more units\n"
7259 " stop NAME... Stop (deactivate) one or more units\n"
7260 " reload NAME... Reload one or more units\n"
7261 " restart NAME... Start or restart one or more units\n"
7262 " try-restart NAME... Restart one or more units if active\n"
7263 " reload-or-restart NAME... Reload one or more units if possible,\n"
7264 " otherwise start or restart\n"
7265 " try-reload-or-restart NAME... If active, reload one or more units,\n"
7266 " if supported, otherwise restart\n"
7267 " isolate NAME Start one unit and stop all others\n"
7268 " kill NAME... Send signal to processes of a unit\n"
7269 " is-active PATTERN... Check whether units are active\n"
7270 " is-failed PATTERN... Check whether units are failed\n"
7271 " status [PATTERN...|PID...] Show runtime status of one or more units\n"
7272 " show [PATTERN...|JOB...] Show properties of one or more\n"
7273 " units/jobs or the manager\n"
7274 " cat PATTERN... Show files and drop-ins of one or more units\n"
7275 " set-property NAME ASSIGNMENT... Sets one or more properties of a unit\n"
7276 " help PATTERN...|PID... Show manual for one or more units\n"
7277 " reset-failed [PATTERN...] Reset failed state for all, one, or more\n"
7278 " units\n"
7279 " list-dependencies [NAME] Recursively show units which are required\n"
7280 " or wanted by this unit or by which this\n"
7281 " unit is required or wanted\n\n"
7282 "Unit File Commands:\n"
7283 " list-unit-files [PATTERN...] List installed unit files\n"
7284 " enable [NAME...|PATH...] Enable one or more unit files\n"
7285 " disable NAME... Disable one or more unit files\n"
7286 " reenable NAME... Reenable one or more unit files\n"
7287 " preset NAME... Enable/disable one or more unit files\n"
7288 " based on preset configuration\n"
7289 " preset-all Enable/disable all unit files based on\n"
7290 " preset configuration\n"
7291 " is-enabled NAME... Check whether unit files are enabled\n"
7292 " mask NAME... Mask one or more units\n"
7293 " unmask NAME... Unmask one or more units\n"
7294 " link PATH... Link one or more units files into\n"
7295 " the search path\n"
7296 " revert NAME... Revert one or more unit files to vendor\n"
7297 " version\n"
7298 " add-wants TARGET NAME... Add 'Wants' dependency for the target\n"
7299 " on specified one or more units\n"
7300 " add-requires TARGET NAME... Add 'Requires' dependency for the target\n"
7301 " on specified one or more units\n"
7302 " edit NAME... Edit one or more unit files\n"
7303 " get-default Get the name of the default target\n"
7304 " set-default NAME Set the default target\n\n"
7305 "Machine Commands:\n"
7306 " list-machines [PATTERN...] List local containers and host\n\n"
7307 "Job Commands:\n"
7308 " list-jobs [PATTERN...] List jobs\n"
7309 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
7310 "Environment Commands:\n"
7311 " show-environment Dump environment\n"
7312 " set-environment NAME=VALUE... Set one or more environment variables\n"
7313 " unset-environment NAME... Unset one or more environment variables\n"
7314 " import-environment [NAME...] Import all or some environment variables\n\n"
7315 "Manager Lifecycle Commands:\n"
7316 " daemon-reload Reload systemd manager configuration\n"
7317 " daemon-reexec Reexecute systemd manager\n\n"
7318 "System Commands:\n"
7319 " is-system-running Check whether system is fully running\n"
7320 " default Enter system default mode\n"
7321 " rescue Enter system rescue mode\n"
7322 " emergency Enter system emergency mode\n"
7323 " halt Shut down and halt the system\n"
7324 " poweroff Shut down and power-off the system\n"
7325 " reboot [ARG] Shut down and reboot the system\n"
7326 " kexec Shut down and reboot the system with kexec\n"
7327 " exit [EXIT_CODE] Request user instance or container exit\n"
7328 " switch-root ROOT [INIT] Change to a different root file system\n"
7329 " suspend Suspend the system\n"
7330 " hibernate Hibernate the system\n"
7331 " hybrid-sleep Hibernate and suspend the system\n",
7332 program_invocation_short_name);
7333 }
7334
7335 static void halt_help(void) {
7336 printf("%s [OPTIONS...]%s\n\n"
7337 "%s the system.\n\n"
7338 " --help Show this help\n"
7339 " --halt Halt the machine\n"
7340 " -p --poweroff Switch off the machine\n"
7341 " --reboot Reboot the machine\n"
7342 " -f --force Force immediate halt/power-off/reboot\n"
7343 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
7344 " -d --no-wtmp Don't write wtmp record\n"
7345 " --no-wall Don't send wall message before halt/power-off/reboot\n",
7346 program_invocation_short_name,
7347 arg_action == ACTION_REBOOT ? " [ARG]" : "",
7348 arg_action == ACTION_REBOOT ? "Reboot" :
7349 arg_action == ACTION_POWEROFF ? "Power off" :
7350 "Halt");
7351 }
7352
7353 static void shutdown_help(void) {
7354 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
7355 "Shut down the system.\n\n"
7356 " --help Show this help\n"
7357 " -H --halt Halt the machine\n"
7358 " -P --poweroff Power-off the machine\n"
7359 " -r --reboot Reboot the machine\n"
7360 " -h Equivalent to --poweroff, overridden by --halt\n"
7361 " -k Don't halt/power-off/reboot, just send warnings\n"
7362 " --no-wall Don't send wall message before halt/power-off/reboot\n"
7363 " -c Cancel a pending shutdown\n",
7364 program_invocation_short_name);
7365 }
7366
7367 static void telinit_help(void) {
7368 printf("%s [OPTIONS...] {COMMAND}\n\n"
7369 "Send control commands to the init daemon.\n\n"
7370 " --help Show this help\n"
7371 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
7372 "Commands:\n"
7373 " 0 Power-off the machine\n"
7374 " 6 Reboot the machine\n"
7375 " 2, 3, 4, 5 Start runlevelX.target unit\n"
7376 " 1, s, S Enter rescue mode\n"
7377 " q, Q Reload init daemon configuration\n"
7378 " u, U Reexecute init daemon\n",
7379 program_invocation_short_name);
7380 }
7381
7382 static void runlevel_help(void) {
7383 printf("%s [OPTIONS...]\n\n"
7384 "Prints the previous and current runlevel of the init system.\n\n"
7385 " --help Show this help\n",
7386 program_invocation_short_name);
7387 }
7388
7389 static void help_types(void) {
7390 int i;
7391
7392 if (!arg_no_legend)
7393 puts("Available unit types:");
7394 for (i = 0; i < _UNIT_TYPE_MAX; i++)
7395 puts(unit_type_to_string(i));
7396 }
7397
7398 static void help_states(void) {
7399 int i;
7400
7401 if (!arg_no_legend)
7402 puts("Available unit load states:");
7403 for (i = 0; i < _UNIT_LOAD_STATE_MAX; i++)
7404 puts(unit_load_state_to_string(i));
7405
7406 if (!arg_no_legend)
7407 puts("\nAvailable unit active states:");
7408 for (i = 0; i < _UNIT_ACTIVE_STATE_MAX; i++)
7409 puts(unit_active_state_to_string(i));
7410
7411 if (!arg_no_legend)
7412 puts("\nAvailable automount unit substates:");
7413 for (i = 0; i < _AUTOMOUNT_STATE_MAX; i++)
7414 puts(automount_state_to_string(i));
7415
7416 if (!arg_no_legend)
7417 puts("\nAvailable device unit substates:");
7418 for (i = 0; i < _DEVICE_STATE_MAX; i++)
7419 puts(device_state_to_string(i));
7420
7421 if (!arg_no_legend)
7422 puts("\nAvailable mount unit substates:");
7423 for (i = 0; i < _MOUNT_STATE_MAX; i++)
7424 puts(mount_state_to_string(i));
7425
7426 if (!arg_no_legend)
7427 puts("\nAvailable path unit substates:");
7428 for (i = 0; i < _PATH_STATE_MAX; i++)
7429 puts(path_state_to_string(i));
7430
7431 if (!arg_no_legend)
7432 puts("\nAvailable scope unit substates:");
7433 for (i = 0; i < _SCOPE_STATE_MAX; i++)
7434 puts(scope_state_to_string(i));
7435
7436 if (!arg_no_legend)
7437 puts("\nAvailable service unit substates:");
7438 for (i = 0; i < _SERVICE_STATE_MAX; i++)
7439 puts(service_state_to_string(i));
7440
7441 if (!arg_no_legend)
7442 puts("\nAvailable slice unit substates:");
7443 for (i = 0; i < _SLICE_STATE_MAX; i++)
7444 puts(slice_state_to_string(i));
7445
7446 if (!arg_no_legend)
7447 puts("\nAvailable socket unit substates:");
7448 for (i = 0; i < _SOCKET_STATE_MAX; i++)
7449 puts(socket_state_to_string(i));
7450
7451 if (!arg_no_legend)
7452 puts("\nAvailable swap unit substates:");
7453 for (i = 0; i < _SWAP_STATE_MAX; i++)
7454 puts(swap_state_to_string(i));
7455
7456 if (!arg_no_legend)
7457 puts("\nAvailable target unit substates:");
7458 for (i = 0; i < _TARGET_STATE_MAX; i++)
7459 puts(target_state_to_string(i));
7460
7461 if (!arg_no_legend)
7462 puts("\nAvailable timer unit substates:");
7463 for (i = 0; i < _TIMER_STATE_MAX; i++)
7464 puts(timer_state_to_string(i));
7465 }
7466
7467 static int systemctl_parse_argv(int argc, char *argv[]) {
7468
7469 enum {
7470 ARG_FAIL = 0x100,
7471 ARG_REVERSE,
7472 ARG_AFTER,
7473 ARG_BEFORE,
7474 ARG_DRY_RUN,
7475 ARG_SHOW_TYPES,
7476 ARG_IRREVERSIBLE,
7477 ARG_IGNORE_DEPENDENCIES,
7478 ARG_VALUE,
7479 ARG_VERSION,
7480 ARG_USER,
7481 ARG_SYSTEM,
7482 ARG_GLOBAL,
7483 ARG_NO_BLOCK,
7484 ARG_NO_LEGEND,
7485 ARG_NO_PAGER,
7486 ARG_NO_WALL,
7487 ARG_ROOT,
7488 ARG_NO_RELOAD,
7489 ARG_KILL_WHO,
7490 ARG_NO_ASK_PASSWORD,
7491 ARG_FAILED,
7492 ARG_RUNTIME,
7493 ARG_FORCE,
7494 ARG_PLAIN,
7495 ARG_STATE,
7496 ARG_JOB_MODE,
7497 ARG_PRESET_MODE,
7498 ARG_FIRMWARE_SETUP,
7499 ARG_NOW,
7500 ARG_MESSAGE,
7501 ARG_WAIT,
7502 };
7503
7504 static const struct option options[] = {
7505 { "help", no_argument, NULL, 'h' },
7506 { "version", no_argument, NULL, ARG_VERSION },
7507 { "type", required_argument, NULL, 't' },
7508 { "property", required_argument, NULL, 'p' },
7509 { "all", no_argument, NULL, 'a' },
7510 { "reverse", no_argument, NULL, ARG_REVERSE },
7511 { "after", no_argument, NULL, ARG_AFTER },
7512 { "before", no_argument, NULL, ARG_BEFORE },
7513 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
7514 { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
7515 { "full", no_argument, NULL, 'l' },
7516 { "job-mode", required_argument, NULL, ARG_JOB_MODE },
7517 { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */
7518 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */
7519 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */
7520 { "ignore-inhibitors", no_argument, NULL, 'i' },
7521 { "value", no_argument, NULL, ARG_VALUE },
7522 { "user", no_argument, NULL, ARG_USER },
7523 { "system", no_argument, NULL, ARG_SYSTEM },
7524 { "global", no_argument, NULL, ARG_GLOBAL },
7525 { "wait", no_argument, NULL, ARG_WAIT },
7526 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
7527 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
7528 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
7529 { "no-wall", no_argument, NULL, ARG_NO_WALL },
7530 { "dry-run", no_argument, NULL, ARG_DRY_RUN },
7531 { "quiet", no_argument, NULL, 'q' },
7532 { "root", required_argument, NULL, ARG_ROOT },
7533 { "force", no_argument, NULL, ARG_FORCE },
7534 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
7535 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
7536 { "signal", required_argument, NULL, 's' },
7537 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
7538 { "host", required_argument, NULL, 'H' },
7539 { "machine", required_argument, NULL, 'M' },
7540 { "runtime", no_argument, NULL, ARG_RUNTIME },
7541 { "lines", required_argument, NULL, 'n' },
7542 { "output", required_argument, NULL, 'o' },
7543 { "plain", no_argument, NULL, ARG_PLAIN },
7544 { "state", required_argument, NULL, ARG_STATE },
7545 { "recursive", no_argument, NULL, 'r' },
7546 { "preset-mode", required_argument, NULL, ARG_PRESET_MODE },
7547 { "firmware-setup", no_argument, NULL, ARG_FIRMWARE_SETUP },
7548 { "now", no_argument, NULL, ARG_NOW },
7549 { "message", required_argument, NULL, ARG_MESSAGE },
7550 {}
7551 };
7552
7553 const char *p;
7554 int c, r;
7555
7556 assert(argc >= 0);
7557 assert(argv);
7558
7559 /* we default to allowing interactive authorization only in systemctl (not in the legacy commands) */
7560 arg_ask_password = true;
7561
7562 while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:ir", options, NULL)) >= 0)
7563
7564 switch (c) {
7565
7566 case 'h':
7567 systemctl_help();
7568 return 0;
7569
7570 case ARG_VERSION:
7571 return version();
7572
7573 case 't': {
7574 if (isempty(optarg)) {
7575 log_error("--type= requires arguments.");
7576 return -EINVAL;
7577 }
7578
7579 for (p = optarg;;) {
7580 _cleanup_free_ char *type = NULL;
7581
7582 r = extract_first_word(&p, &type, ",", 0);
7583 if (r < 0)
7584 return log_error_errno(r, "Failed to parse type: %s", optarg);
7585 if (r == 0)
7586 break;
7587
7588 if (streq(type, "help")) {
7589 help_types();
7590 return 0;
7591 }
7592
7593 if (unit_type_from_string(type) >= 0) {
7594 if (strv_push(&arg_types, type) < 0)
7595 return log_oom();
7596 type = NULL;
7597 continue;
7598 }
7599
7600 /* It's much nicer to use --state= for
7601 * load states, but let's support this
7602 * in --types= too for compatibility
7603 * with old versions */
7604 if (unit_load_state_from_string(type) >= 0) {
7605 if (strv_push(&arg_states, type) < 0)
7606 return log_oom();
7607 type = NULL;
7608 continue;
7609 }
7610
7611 log_error("Unknown unit type or load state '%s'.", type);
7612 log_info("Use -t help to see a list of allowed values.");
7613 return -EINVAL;
7614 }
7615
7616 break;
7617 }
7618
7619 case 'p': {
7620 /* Make sure that if the empty property list
7621 was specified, we won't show any properties. */
7622 if (isempty(optarg) && !arg_properties) {
7623 arg_properties = new0(char*, 1);
7624 if (!arg_properties)
7625 return log_oom();
7626 } else
7627 for (p = optarg;;) {
7628 _cleanup_free_ char *prop = NULL;
7629
7630 r = extract_first_word(&p, &prop, ",", 0);
7631 if (r < 0)
7632 return log_error_errno(r, "Failed to parse property: %s", optarg);
7633 if (r == 0)
7634 break;
7635
7636 if (strv_push(&arg_properties, prop) < 0)
7637 return log_oom();
7638
7639 prop = NULL;
7640 }
7641
7642 /* If the user asked for a particular
7643 * property, show it to him, even if it is
7644 * empty. */
7645 arg_all = true;
7646
7647 break;
7648 }
7649
7650 case 'a':
7651 arg_all = true;
7652 break;
7653
7654 case ARG_REVERSE:
7655 arg_dependency = DEPENDENCY_REVERSE;
7656 break;
7657
7658 case ARG_AFTER:
7659 arg_dependency = DEPENDENCY_AFTER;
7660 arg_jobs_after = true;
7661 break;
7662
7663 case ARG_BEFORE:
7664 arg_dependency = DEPENDENCY_BEFORE;
7665 arg_jobs_before = true;
7666 break;
7667
7668 case ARG_SHOW_TYPES:
7669 arg_show_types = true;
7670 break;
7671
7672 case ARG_VALUE:
7673 arg_value = true;
7674 break;
7675
7676 case ARG_JOB_MODE:
7677 arg_job_mode = optarg;
7678 break;
7679
7680 case ARG_FAIL:
7681 arg_job_mode = "fail";
7682 break;
7683
7684 case ARG_IRREVERSIBLE:
7685 arg_job_mode = "replace-irreversibly";
7686 break;
7687
7688 case ARG_IGNORE_DEPENDENCIES:
7689 arg_job_mode = "ignore-dependencies";
7690 break;
7691
7692 case ARG_USER:
7693 arg_scope = UNIT_FILE_USER;
7694 break;
7695
7696 case ARG_SYSTEM:
7697 arg_scope = UNIT_FILE_SYSTEM;
7698 break;
7699
7700 case ARG_GLOBAL:
7701 arg_scope = UNIT_FILE_GLOBAL;
7702 break;
7703
7704 case ARG_WAIT:
7705 arg_wait = true;
7706 break;
7707
7708 case ARG_NO_BLOCK:
7709 arg_no_block = true;
7710 break;
7711
7712 case ARG_NO_LEGEND:
7713 arg_no_legend = true;
7714 break;
7715
7716 case ARG_NO_PAGER:
7717 arg_no_pager = true;
7718 break;
7719
7720 case ARG_NO_WALL:
7721 arg_no_wall = true;
7722 break;
7723
7724 case ARG_ROOT:
7725 r = parse_path_argument_and_warn(optarg, false, &arg_root);
7726 if (r < 0)
7727 return r;
7728 break;
7729
7730 case 'l':
7731 arg_full = true;
7732 break;
7733
7734 case ARG_FAILED:
7735 if (strv_extend(&arg_states, "failed") < 0)
7736 return log_oom();
7737
7738 break;
7739
7740 case ARG_DRY_RUN:
7741 arg_dry_run = true;
7742 break;
7743
7744 case 'q':
7745 arg_quiet = true;
7746 break;
7747
7748 case ARG_FORCE:
7749 arg_force++;
7750 break;
7751
7752 case 'f':
7753 arg_force++;
7754 break;
7755
7756 case ARG_NO_RELOAD:
7757 arg_no_reload = true;
7758 break;
7759
7760 case ARG_KILL_WHO:
7761 arg_kill_who = optarg;
7762 break;
7763
7764 case 's':
7765 arg_signal = signal_from_string_try_harder(optarg);
7766 if (arg_signal < 0) {
7767 log_error("Failed to parse signal string %s.", optarg);
7768 return -EINVAL;
7769 }
7770 break;
7771
7772 case ARG_NO_ASK_PASSWORD:
7773 arg_ask_password = false;
7774 break;
7775
7776 case 'H':
7777 arg_transport = BUS_TRANSPORT_REMOTE;
7778 arg_host = optarg;
7779 break;
7780
7781 case 'M':
7782 arg_transport = BUS_TRANSPORT_MACHINE;
7783 arg_host = optarg;
7784 break;
7785
7786 case ARG_RUNTIME:
7787 arg_runtime = true;
7788 break;
7789
7790 case 'n':
7791 if (safe_atou(optarg, &arg_lines) < 0) {
7792 log_error("Failed to parse lines '%s'", optarg);
7793 return -EINVAL;
7794 }
7795 break;
7796
7797 case 'o':
7798 arg_output = output_mode_from_string(optarg);
7799 if (arg_output < 0) {
7800 log_error("Unknown output '%s'.", optarg);
7801 return -EINVAL;
7802 }
7803 break;
7804
7805 case 'i':
7806 arg_ignore_inhibitors = true;
7807 break;
7808
7809 case ARG_PLAIN:
7810 arg_plain = true;
7811 break;
7812
7813 case ARG_FIRMWARE_SETUP:
7814 arg_firmware_setup = true;
7815 break;
7816
7817 case ARG_STATE: {
7818 if (isempty(optarg)) {
7819 log_error("--state= requires arguments.");
7820 return -EINVAL;
7821 }
7822
7823 for (p = optarg;;) {
7824 _cleanup_free_ char *s = NULL;
7825
7826 r = extract_first_word(&p, &s, ",", 0);
7827 if (r < 0)
7828 return log_error_errno(r, "Failed to parse state: %s", optarg);
7829 if (r == 0)
7830 break;
7831
7832 if (streq(s, "help")) {
7833 help_states();
7834 return 0;
7835 }
7836
7837 if (strv_push(&arg_states, s) < 0)
7838 return log_oom();
7839
7840 s = NULL;
7841 }
7842 break;
7843 }
7844
7845 case 'r':
7846 if (geteuid() != 0) {
7847 log_error("--recursive requires root privileges.");
7848 return -EPERM;
7849 }
7850
7851 arg_recursive = true;
7852 break;
7853
7854 case ARG_PRESET_MODE:
7855
7856 arg_preset_mode = unit_file_preset_mode_from_string(optarg);
7857 if (arg_preset_mode < 0) {
7858 log_error("Failed to parse preset mode: %s.", optarg);
7859 return -EINVAL;
7860 }
7861
7862 break;
7863
7864 case ARG_NOW:
7865 arg_now = true;
7866 break;
7867
7868 case ARG_MESSAGE:
7869 if (strv_extend(&arg_wall, optarg) < 0)
7870 return log_oom();
7871 break;
7872
7873 case '?':
7874 return -EINVAL;
7875
7876 default:
7877 assert_not_reached("Unhandled option");
7878 }
7879
7880 if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
7881 log_error("Cannot access user instance remotely.");
7882 return -EINVAL;
7883 }
7884
7885 if (arg_wait && arg_no_block) {
7886 log_error("--wait may not be combined with --no-block.");
7887 return -EINVAL;
7888 }
7889
7890 return 1;
7891 }
7892
7893 static int halt_parse_argv(int argc, char *argv[]) {
7894
7895 enum {
7896 ARG_HELP = 0x100,
7897 ARG_HALT,
7898 ARG_REBOOT,
7899 ARG_NO_WALL
7900 };
7901
7902 static const struct option options[] = {
7903 { "help", no_argument, NULL, ARG_HELP },
7904 { "halt", no_argument, NULL, ARG_HALT },
7905 { "poweroff", no_argument, NULL, 'p' },
7906 { "reboot", no_argument, NULL, ARG_REBOOT },
7907 { "force", no_argument, NULL, 'f' },
7908 { "wtmp-only", no_argument, NULL, 'w' },
7909 { "no-wtmp", no_argument, NULL, 'd' },
7910 { "no-sync", no_argument, NULL, 'n' },
7911 { "no-wall", no_argument, NULL, ARG_NO_WALL },
7912 {}
7913 };
7914
7915 int c, r, runlevel;
7916
7917 assert(argc >= 0);
7918 assert(argv);
7919
7920 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
7921 if (IN_SET(runlevel, '0', '6'))
7922 arg_force = 2;
7923
7924 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0)
7925 switch (c) {
7926
7927 case ARG_HELP:
7928 halt_help();
7929 return 0;
7930
7931 case ARG_HALT:
7932 arg_action = ACTION_HALT;
7933 break;
7934
7935 case 'p':
7936 if (arg_action != ACTION_REBOOT)
7937 arg_action = ACTION_POWEROFF;
7938 break;
7939
7940 case ARG_REBOOT:
7941 arg_action = ACTION_REBOOT;
7942 break;
7943
7944 case 'f':
7945 arg_force = 2;
7946 break;
7947
7948 case 'w':
7949 arg_dry_run = true;
7950 break;
7951
7952 case 'd':
7953 arg_no_wtmp = true;
7954 break;
7955
7956 case 'n':
7957 arg_no_sync = true;
7958 break;
7959
7960 case ARG_NO_WALL:
7961 arg_no_wall = true;
7962 break;
7963
7964 case 'i':
7965 case 'h':
7966 /* Compatibility nops */
7967 break;
7968
7969 case '?':
7970 return -EINVAL;
7971
7972 default:
7973 assert_not_reached("Unhandled option");
7974 }
7975
7976 if (arg_action == ACTION_REBOOT && (argc == optind || argc == optind + 1)) {
7977 r = update_reboot_parameter_and_warn(argc == optind + 1 ? argv[optind] : NULL);
7978 if (r < 0)
7979 return r;
7980 } else if (optind < argc) {
7981 log_error("Too many arguments.");
7982 return -EINVAL;
7983 }
7984
7985 return 1;
7986 }
7987
7988 static int parse_shutdown_time_spec(const char *t, usec_t *_u) {
7989 assert(t);
7990 assert(_u);
7991
7992 if (streq(t, "now"))
7993 *_u = 0;
7994 else if (!strchr(t, ':')) {
7995 uint64_t u;
7996
7997 if (safe_atou64(t, &u) < 0)
7998 return -EINVAL;
7999
8000 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
8001 } else {
8002 char *e = NULL;
8003 long hour, minute;
8004 struct tm tm = {};
8005 time_t s;
8006 usec_t n;
8007
8008 errno = 0;
8009 hour = strtol(t, &e, 10);
8010 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
8011 return -EINVAL;
8012
8013 minute = strtol(e+1, &e, 10);
8014 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
8015 return -EINVAL;
8016
8017 n = now(CLOCK_REALTIME);
8018 s = (time_t) (n / USEC_PER_SEC);
8019
8020 assert_se(localtime_r(&s, &tm));
8021
8022 tm.tm_hour = (int) hour;
8023 tm.tm_min = (int) minute;
8024 tm.tm_sec = 0;
8025
8026 assert_se(s = mktime(&tm));
8027
8028 *_u = (usec_t) s * USEC_PER_SEC;
8029
8030 while (*_u <= n)
8031 *_u += USEC_PER_DAY;
8032 }
8033
8034 return 0;
8035 }
8036
8037 static int shutdown_parse_argv(int argc, char *argv[]) {
8038
8039 enum {
8040 ARG_HELP = 0x100,
8041 ARG_NO_WALL
8042 };
8043
8044 static const struct option options[] = {
8045 { "help", no_argument, NULL, ARG_HELP },
8046 { "halt", no_argument, NULL, 'H' },
8047 { "poweroff", no_argument, NULL, 'P' },
8048 { "reboot", no_argument, NULL, 'r' },
8049 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
8050 { "no-wall", no_argument, NULL, ARG_NO_WALL },
8051 {}
8052 };
8053
8054 char **wall = NULL;
8055 int c, r;
8056
8057 assert(argc >= 0);
8058 assert(argv);
8059
8060 while ((c = getopt_long(argc, argv, "HPrhkKat:fFc", options, NULL)) >= 0)
8061 switch (c) {
8062
8063 case ARG_HELP:
8064 shutdown_help();
8065 return 0;
8066
8067 case 'H':
8068 arg_action = ACTION_HALT;
8069 break;
8070
8071 case 'P':
8072 arg_action = ACTION_POWEROFF;
8073 break;
8074
8075 case 'r':
8076 if (kexec_loaded())
8077 arg_action = ACTION_KEXEC;
8078 else
8079 arg_action = ACTION_REBOOT;
8080 break;
8081
8082 case 'K':
8083 arg_action = ACTION_KEXEC;
8084 break;
8085
8086 case 'h':
8087 if (arg_action != ACTION_HALT)
8088 arg_action = ACTION_POWEROFF;
8089 break;
8090
8091 case 'k':
8092 arg_dry_run = true;
8093 break;
8094
8095 case ARG_NO_WALL:
8096 arg_no_wall = true;
8097 break;
8098
8099 case 'a':
8100 case 't': /* Note that we also ignore any passed argument to -t, not just the -t itself */
8101 case 'f':
8102 case 'F':
8103 /* Compatibility nops */
8104 break;
8105
8106 case 'c':
8107 arg_action = ACTION_CANCEL_SHUTDOWN;
8108 break;
8109
8110 case '?':
8111 return -EINVAL;
8112
8113 default:
8114 assert_not_reached("Unhandled option");
8115 }
8116
8117 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
8118 r = parse_shutdown_time_spec(argv[optind], &arg_when);
8119 if (r < 0) {
8120 log_error("Failed to parse time specification: %s", argv[optind]);
8121 return r;
8122 }
8123 } else
8124 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
8125
8126 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
8127 /* No time argument for shutdown cancel */
8128 wall = argv + optind;
8129 else if (argc > optind + 1)
8130 /* We skip the time argument */
8131 wall = argv + optind + 1;
8132
8133 if (wall) {
8134 arg_wall = strv_copy(wall);
8135 if (!arg_wall)
8136 return log_oom();
8137 }
8138
8139 optind = argc;
8140
8141 return 1;
8142 }
8143
8144 static int telinit_parse_argv(int argc, char *argv[]) {
8145
8146 enum {
8147 ARG_HELP = 0x100,
8148 ARG_NO_WALL
8149 };
8150
8151 static const struct option options[] = {
8152 { "help", no_argument, NULL, ARG_HELP },
8153 { "no-wall", no_argument, NULL, ARG_NO_WALL },
8154 {}
8155 };
8156
8157 static const struct {
8158 char from;
8159 enum action to;
8160 } table[] = {
8161 { '0', ACTION_POWEROFF },
8162 { '6', ACTION_REBOOT },
8163 { '1', ACTION_RESCUE },
8164 { '2', ACTION_RUNLEVEL2 },
8165 { '3', ACTION_RUNLEVEL3 },
8166 { '4', ACTION_RUNLEVEL4 },
8167 { '5', ACTION_RUNLEVEL5 },
8168 { 's', ACTION_RESCUE },
8169 { 'S', ACTION_RESCUE },
8170 { 'q', ACTION_RELOAD },
8171 { 'Q', ACTION_RELOAD },
8172 { 'u', ACTION_REEXEC },
8173 { 'U', ACTION_REEXEC }
8174 };
8175
8176 unsigned i;
8177 int c;
8178
8179 assert(argc >= 0);
8180 assert(argv);
8181
8182 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
8183 switch (c) {
8184
8185 case ARG_HELP:
8186 telinit_help();
8187 return 0;
8188
8189 case ARG_NO_WALL:
8190 arg_no_wall = true;
8191 break;
8192
8193 case '?':
8194 return -EINVAL;
8195
8196 default:
8197 assert_not_reached("Unhandled option");
8198 }
8199
8200 if (optind >= argc) {
8201 log_error("%s: required argument missing.", program_invocation_short_name);
8202 return -EINVAL;
8203 }
8204
8205 if (optind + 1 < argc) {
8206 log_error("Too many arguments.");
8207 return -EINVAL;
8208 }
8209
8210 if (strlen(argv[optind]) != 1) {
8211 log_error("Expected single character argument.");
8212 return -EINVAL;
8213 }
8214
8215 for (i = 0; i < ELEMENTSOF(table); i++)
8216 if (table[i].from == argv[optind][0])
8217 break;
8218
8219 if (i >= ELEMENTSOF(table)) {
8220 log_error("Unknown command '%s'.", argv[optind]);
8221 return -EINVAL;
8222 }
8223
8224 arg_action = table[i].to;
8225
8226 optind++;
8227
8228 return 1;
8229 }
8230
8231 static int runlevel_parse_argv(int argc, char *argv[]) {
8232
8233 enum {
8234 ARG_HELP = 0x100,
8235 };
8236
8237 static const struct option options[] = {
8238 { "help", no_argument, NULL, ARG_HELP },
8239 {}
8240 };
8241
8242 int c;
8243
8244 assert(argc >= 0);
8245 assert(argv);
8246
8247 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
8248 switch (c) {
8249
8250 case ARG_HELP:
8251 runlevel_help();
8252 return 0;
8253
8254 case '?':
8255 return -EINVAL;
8256
8257 default:
8258 assert_not_reached("Unhandled option");
8259 }
8260
8261 if (optind < argc) {
8262 log_error("Too many arguments.");
8263 return -EINVAL;
8264 }
8265
8266 return 1;
8267 }
8268
8269 static int parse_argv(int argc, char *argv[]) {
8270 assert(argc >= 0);
8271 assert(argv);
8272
8273 if (program_invocation_short_name) {
8274
8275 if (strstr(program_invocation_short_name, "halt")) {
8276 arg_action = ACTION_HALT;
8277 return halt_parse_argv(argc, argv);
8278 } else if (strstr(program_invocation_short_name, "poweroff")) {
8279 arg_action = ACTION_POWEROFF;
8280 return halt_parse_argv(argc, argv);
8281 } else if (strstr(program_invocation_short_name, "reboot")) {
8282 if (kexec_loaded())
8283 arg_action = ACTION_KEXEC;
8284 else
8285 arg_action = ACTION_REBOOT;
8286 return halt_parse_argv(argc, argv);
8287 } else if (strstr(program_invocation_short_name, "shutdown")) {
8288 arg_action = ACTION_POWEROFF;
8289 return shutdown_parse_argv(argc, argv);
8290 } else if (strstr(program_invocation_short_name, "init")) {
8291
8292 if (sd_booted() > 0) {
8293 arg_action = _ACTION_INVALID;
8294 return telinit_parse_argv(argc, argv);
8295 } else {
8296 /* Hmm, so some other init system is
8297 * running, we need to forward this
8298 * request to it. For now we simply
8299 * guess that it is Upstart. */
8300
8301 execv(TELINIT, argv);
8302
8303 log_error("Couldn't find an alternative telinit implementation to spawn.");
8304 return -EIO;
8305 }
8306
8307 } else if (strstr(program_invocation_short_name, "runlevel")) {
8308 arg_action = ACTION_RUNLEVEL;
8309 return runlevel_parse_argv(argc, argv);
8310 }
8311 }
8312
8313 arg_action = ACTION_SYSTEMCTL;
8314 return systemctl_parse_argv(argc, argv);
8315 }
8316
8317 #if HAVE_SYSV_COMPAT
8318 _pure_ static int action_to_runlevel(void) {
8319
8320 static const char table[_ACTION_MAX] = {
8321 [ACTION_HALT] = '0',
8322 [ACTION_POWEROFF] = '0',
8323 [ACTION_REBOOT] = '6',
8324 [ACTION_RUNLEVEL2] = '2',
8325 [ACTION_RUNLEVEL3] = '3',
8326 [ACTION_RUNLEVEL4] = '4',
8327 [ACTION_RUNLEVEL5] = '5',
8328 [ACTION_RESCUE] = '1'
8329 };
8330
8331 assert(arg_action >= 0 && arg_action < _ACTION_MAX);
8332
8333 return table[arg_action];
8334 }
8335 #endif
8336
8337 static int talk_initctl(void) {
8338 #if HAVE_SYSV_COMPAT
8339 struct init_request request = {
8340 .magic = INIT_MAGIC,
8341 .sleeptime = 0,
8342 .cmd = INIT_CMD_RUNLVL
8343 };
8344
8345 _cleanup_close_ int fd = -1;
8346 char rl;
8347 int r;
8348
8349 rl = action_to_runlevel();
8350 if (!rl)
8351 return 0;
8352
8353 request.runlevel = rl;
8354
8355 fd = open(INIT_FIFO, O_WRONLY|O_NONBLOCK|O_CLOEXEC|O_NOCTTY);
8356 if (fd < 0) {
8357 if (errno == ENOENT)
8358 return 0;
8359
8360 return log_error_errno(errno, "Failed to open "INIT_FIFO": %m");
8361 }
8362
8363 r = loop_write(fd, &request, sizeof(request), false);
8364 if (r < 0)
8365 return log_error_errno(r, "Failed to write to "INIT_FIFO": %m");
8366
8367 return 1;
8368 #else
8369 return 0;
8370 #endif
8371 }
8372
8373 static int systemctl_main(int argc, char *argv[]) {
8374
8375 static const Verb verbs[] = {
8376 { "list-units", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_units },
8377 { "list-unit-files", VERB_ANY, VERB_ANY, 0, list_unit_files },
8378 { "list-sockets", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_sockets },
8379 { "list-timers", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_timers },
8380 { "list-jobs", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_jobs },
8381 { "list-machines", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY|VERB_MUST_BE_ROOT, list_machines },
8382 { "clear-jobs", VERB_ANY, 1, VERB_ONLINE_ONLY, trivial_method },
8383 { "cancel", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, cancel_job },
8384 { "start", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8385 { "stop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8386 { "condstop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */
8387 { "reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8388 { "restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8389 { "try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8390 { "reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8391 { "reload-or-try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatbility with old systemctl <= 228 */
8392 { "try-reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
8393 { "force-reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with SysV */
8394 { "condreload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */
8395 { "condrestart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with RH */
8396 { "isolate", 2, 2, VERB_ONLINE_ONLY, start_unit },
8397 { "kill", 2, VERB_ANY, VERB_ONLINE_ONLY, kill_unit },
8398 { "is-active", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active },
8399 { "check", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active }, /* deprecated alias of is-active */
8400 { "is-failed", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_failed },
8401 { "show", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
8402 { "cat", 2, VERB_ANY, VERB_ONLINE_ONLY, cat },
8403 { "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
8404 { "help", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
8405 { "daemon-reload", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload },
8406 { "daemon-reexec", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload },
8407 { "show-environment", VERB_ANY, 1, VERB_ONLINE_ONLY, show_environment },
8408 { "set-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
8409 { "unset-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
8410 { "import-environment", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, import_environment },
8411 { "halt", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8412 { "poweroff", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8413 { "reboot", VERB_ANY, 2, VERB_ONLINE_ONLY, start_system_special },
8414 { "kexec", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8415 { "suspend", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8416 { "hibernate", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8417 { "hybrid-sleep", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8418 { "default", VERB_ANY, 1, VERB_ONLINE_ONLY, start_special },
8419 { "rescue", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8420 { "emergency", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
8421 { "exit", VERB_ANY, 2, VERB_ONLINE_ONLY, start_special },
8422 { "reset-failed", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, reset_failed },
8423 { "enable", 2, VERB_ANY, 0, enable_unit },
8424 { "disable", 2, VERB_ANY, 0, enable_unit },
8425 { "is-enabled", 2, VERB_ANY, 0, unit_is_enabled },
8426 { "reenable", 2, VERB_ANY, 0, enable_unit },
8427 { "preset", 2, VERB_ANY, 0, enable_unit },
8428 { "preset-all", VERB_ANY, 1, 0, preset_all },
8429 { "mask", 2, VERB_ANY, 0, enable_unit },
8430 { "unmask", 2, VERB_ANY, 0, enable_unit },
8431 { "link", 2, VERB_ANY, 0, enable_unit },
8432 { "revert", 2, VERB_ANY, 0, enable_unit },
8433 { "switch-root", 2, VERB_ANY, VERB_ONLINE_ONLY, switch_root },
8434 { "list-dependencies", VERB_ANY, 2, VERB_ONLINE_ONLY, list_dependencies },
8435 { "set-default", 2, 2, 0, set_default },
8436 { "get-default", VERB_ANY, 1, 0, get_default },
8437 { "set-property", 3, VERB_ANY, VERB_ONLINE_ONLY, set_property },
8438 { "is-system-running", VERB_ANY, 1, 0, is_system_running },
8439 { "add-wants", 3, VERB_ANY, 0, add_dependency },
8440 { "add-requires", 3, VERB_ANY, 0, add_dependency },
8441 { "edit", 2, VERB_ANY, VERB_ONLINE_ONLY, edit },
8442 {}
8443 };
8444
8445 return dispatch_verb(argc, argv, verbs, NULL);
8446 }
8447
8448 static int reload_with_fallback(void) {
8449
8450 /* First, try systemd via D-Bus. */
8451 if (daemon_reload(0, NULL, NULL) >= 0)
8452 return 0;
8453
8454 /* Nothing else worked, so let's try signals */
8455 assert(IN_SET(arg_action, ACTION_RELOAD, ACTION_REEXEC));
8456
8457 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0)
8458 return log_error_errno(errno, "kill() failed: %m");
8459
8460 return 0;
8461 }
8462
8463 static int start_with_fallback(void) {
8464
8465 /* First, try systemd via D-Bus. */
8466 if (start_unit(0, NULL, NULL) >= 0)
8467 return 0;
8468
8469 /* Nothing else worked, so let's try /dev/initctl */
8470 if (talk_initctl() > 0)
8471 return 0;
8472
8473 log_error("Failed to talk to init daemon.");
8474 return -EIO;
8475 }
8476
8477 static int halt_now(enum action a) {
8478 int r;
8479
8480 /* The kernel will automaticall flush ATA disks and suchlike
8481 * on reboot(), but the file systems need to be synce'd
8482 * explicitly in advance. */
8483 if (!arg_no_sync && !arg_dry_run)
8484 (void) sync();
8485
8486 /* Make sure C-A-D is handled by the kernel from this point on... */
8487 if (!arg_dry_run)
8488 (void) reboot(RB_ENABLE_CAD);
8489
8490 switch (a) {
8491
8492 case ACTION_HALT:
8493 if (!arg_quiet)
8494 log_info("Halting.");
8495 if (arg_dry_run)
8496 return 0;
8497 (void) reboot(RB_HALT_SYSTEM);
8498 return -errno;
8499
8500 case ACTION_POWEROFF:
8501 if (!arg_quiet)
8502 log_info("Powering off.");
8503 if (arg_dry_run)
8504 return 0;
8505 (void) reboot(RB_POWER_OFF);
8506 return -errno;
8507
8508 case ACTION_KEXEC:
8509 case ACTION_REBOOT: {
8510 _cleanup_free_ char *param = NULL;
8511
8512 r = read_one_line_file("/run/systemd/reboot-param", &param);
8513 if (r < 0 && r != -ENOENT)
8514 log_warning_errno(r, "Failed to read reboot parameter file: %m");
8515
8516 if (!isempty(param)) {
8517 if (!arg_quiet)
8518 log_info("Rebooting with argument '%s'.", param);
8519 if (!arg_dry_run) {
8520 (void) syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
8521 LINUX_REBOOT_CMD_RESTART2, param);
8522 log_warning_errno(errno, "Failed to reboot with parameter, retrying without: %m");
8523 }
8524 }
8525
8526 if (!arg_quiet)
8527 log_info("Rebooting.");
8528 if (arg_dry_run)
8529 return 0;
8530 (void) reboot(RB_AUTOBOOT);
8531 return -errno;
8532 }
8533
8534 default:
8535 assert_not_reached("Unknown action.");
8536 }
8537 }
8538
8539 static int logind_schedule_shutdown(void) {
8540
8541 #if ENABLE_LOGIND
8542 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
8543 char date[FORMAT_TIMESTAMP_MAX];
8544 const char *action;
8545 sd_bus *bus;
8546 int r;
8547
8548 r = acquire_bus(BUS_FULL, &bus);
8549 if (r < 0)
8550 return r;
8551
8552 switch (arg_action) {
8553 case ACTION_HALT:
8554 action = "halt";
8555 break;
8556 case ACTION_POWEROFF:
8557 action = "poweroff";
8558 break;
8559 case ACTION_KEXEC:
8560 action = "kexec";
8561 break;
8562 case ACTION_EXIT:
8563 action = "exit";
8564 break;
8565 case ACTION_REBOOT:
8566 default:
8567 action = "reboot";
8568 break;
8569 }
8570
8571 if (arg_dry_run)
8572 action = strjoina("dry-", action);
8573
8574 (void) logind_set_wall_message();
8575
8576 r = sd_bus_call_method(
8577 bus,
8578 "org.freedesktop.login1",
8579 "/org/freedesktop/login1",
8580 "org.freedesktop.login1.Manager",
8581 "ScheduleShutdown",
8582 &error,
8583 NULL,
8584 "st",
8585 action,
8586 arg_when);
8587 if (r < 0)
8588 return log_warning_errno(r, "Failed to call ScheduleShutdown in logind, proceeding with immediate shutdown: %s", bus_error_message(&error, r));
8589
8590 if (!arg_quiet)
8591 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.", format_timestamp(date, sizeof(date), arg_when));
8592 return 0;
8593 #else
8594 log_error("Cannot schedule shutdown without logind support, proceeding with immediate shutdown.");
8595 return -ENOSYS;
8596 #endif
8597 }
8598
8599 static int halt_main(void) {
8600 int r;
8601
8602 r = logind_check_inhibitors(arg_action);
8603 if (r < 0)
8604 return r;
8605
8606 if (arg_when > 0)
8607 return logind_schedule_shutdown();
8608
8609 if (geteuid() != 0) {
8610 if (arg_dry_run || arg_force > 0) {
8611 (void) must_be_root();
8612 return -EPERM;
8613 }
8614
8615 /* Try logind if we are a normal user and no special
8616 * mode applies. Maybe PolicyKit allows us to shutdown
8617 * the machine. */
8618 if (IN_SET(arg_action, ACTION_POWEROFF, ACTION_REBOOT, ACTION_HALT)) {
8619 r = logind_reboot(arg_action);
8620 if (r >= 0)
8621 return r;
8622 if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS))
8623 /* requested operation is not
8624 * supported on the local system or
8625 * already in progress */
8626 return r;
8627 /* on all other errors, try low-level operation */
8628 }
8629 }
8630
8631 if (!arg_dry_run && !arg_force)
8632 return start_with_fallback();
8633
8634 assert(geteuid() == 0);
8635
8636 if (!arg_no_wtmp) {
8637 if (sd_booted() > 0)
8638 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
8639 else {
8640 r = utmp_put_shutdown();
8641 if (r < 0)
8642 log_warning_errno(r, "Failed to write utmp record: %m");
8643 }
8644 }
8645
8646 if (arg_dry_run)
8647 return 0;
8648
8649 r = halt_now(arg_action);
8650 return log_error_errno(r, "Failed to reboot: %m");
8651 }
8652
8653 static int runlevel_main(void) {
8654 int r, runlevel, previous;
8655
8656 r = utmp_get_runlevel(&runlevel, &previous);
8657 if (r < 0) {
8658 puts("unknown");
8659 return r;
8660 }
8661
8662 printf("%c %c\n",
8663 previous <= 0 ? 'N' : previous,
8664 runlevel <= 0 ? 'N' : runlevel);
8665
8666 return 0;
8667 }
8668
8669 static int logind_cancel_shutdown(void) {
8670 #if ENABLE_LOGIND
8671 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
8672 sd_bus *bus;
8673 int r;
8674
8675 r = acquire_bus(BUS_FULL, &bus);
8676 if (r < 0)
8677 return r;
8678
8679 (void) logind_set_wall_message();
8680
8681 r = sd_bus_call_method(
8682 bus,
8683 "org.freedesktop.login1",
8684 "/org/freedesktop/login1",
8685 "org.freedesktop.login1.Manager",
8686 "CancelScheduledShutdown",
8687 &error,
8688 NULL, NULL);
8689 if (r < 0)
8690 return log_warning_errno(r, "Failed to talk to logind, shutdown hasn't been cancelled: %s", bus_error_message(&error, r));
8691
8692 return 0;
8693 #else
8694 log_error("Not compiled with logind support, cannot cancel scheduled shutdowns.");
8695 return -ENOSYS;
8696 #endif
8697 }
8698
8699 int main(int argc, char*argv[]) {
8700 int r;
8701
8702 argv_cmdline = argv[0];
8703
8704 setlocale(LC_ALL, "");
8705 log_parse_environment();
8706 log_open();
8707 sigbus_install();
8708
8709 /* Explicitly not on_tty() to avoid setting cached value.
8710 * This becomes relevant for piping output which might be
8711 * ellipsized. */
8712 original_stdout_is_tty = isatty(STDOUT_FILENO);
8713
8714 r = parse_argv(argc, argv);
8715 if (r <= 0)
8716 goto finish;
8717
8718 if (arg_action != ACTION_SYSTEMCTL && running_in_chroot() > 0) {
8719
8720 if (!arg_quiet)
8721 log_info("Running in chroot, ignoring request.");
8722 r = 0;
8723 goto finish;
8724 }
8725
8726 /* systemctl_main() will print an error message for the bus
8727 * connection, but only if it needs to */
8728
8729 switch (arg_action) {
8730
8731 case ACTION_SYSTEMCTL:
8732 r = systemctl_main(argc, argv);
8733 break;
8734
8735 /* Legacy command aliases set arg_action. They provide some fallbacks,
8736 * e.g. to tell sysvinit to reboot after you have installed systemd
8737 * binaries. */
8738
8739 case ACTION_HALT:
8740 case ACTION_POWEROFF:
8741 case ACTION_REBOOT:
8742 case ACTION_KEXEC:
8743 r = halt_main();
8744 break;
8745
8746 case ACTION_RUNLEVEL2:
8747 case ACTION_RUNLEVEL3:
8748 case ACTION_RUNLEVEL4:
8749 case ACTION_RUNLEVEL5:
8750 case ACTION_RESCUE:
8751 r = start_with_fallback();
8752 break;
8753
8754 case ACTION_RELOAD:
8755 case ACTION_REEXEC:
8756 r = reload_with_fallback();
8757 break;
8758
8759 case ACTION_CANCEL_SHUTDOWN:
8760 r = logind_cancel_shutdown();
8761 break;
8762
8763 case ACTION_RUNLEVEL:
8764 r = runlevel_main();
8765 break;
8766
8767 case ACTION_EXIT:
8768 case ACTION_SUSPEND:
8769 case ACTION_HIBERNATE:
8770 case ACTION_HYBRID_SLEEP:
8771 case ACTION_EMERGENCY:
8772 case ACTION_DEFAULT:
8773 /* systemctl verbs with no equivalent in the legacy commands.
8774 * These cannot appear in arg_action. Fall through. */
8775
8776 case _ACTION_INVALID:
8777 default:
8778 assert_not_reached("Unknown action");
8779 }
8780
8781 finish:
8782 release_busses();
8783
8784 pager_close();
8785 ask_password_agent_close();
8786 polkit_agent_close();
8787
8788 strv_free(arg_types);
8789 strv_free(arg_states);
8790 strv_free(arg_properties);
8791
8792 strv_free(arg_wall);
8793 free(arg_root);
8794 free(arg_esp_path);
8795
8796 /* Note that we return r here, not EXIT_SUCCESS, so that we can implement the LSB-like return codes */
8797 return r < 0 ? EXIT_FAILURE : r;
8798 }
Unnamed repository; edit this file 'description' to name the repository.