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systemctl: filter shown units by their load state
[thirdparty/systemd.git] / src / systemctl / systemctl.c
1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3 /***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
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 <sys/reboot.h>
23 #include <stdio.h>
24 #include <getopt.h>
25 #include <stdbool.h>
26 #include <string.h>
27 #include <errno.h>
28 #include <sys/ioctl.h>
29 #include <termios.h>
30 #include <unistd.h>
31 #include <fcntl.h>
32 #include <sys/socket.h>
33 #include <sys/stat.h>
34 #include <stddef.h>
35 #include <sys/prctl.h>
36 #include <dbus/dbus.h>
37
38 #include <systemd/sd-daemon.h>
39 #include <systemd/sd-shutdown.h>
40
41 #include "log.h"
42 #include "util.h"
43 #include "macro.h"
44 #include "set.h"
45 #include "utmp-wtmp.h"
46 #include "special.h"
47 #include "initreq.h"
48 #include "path-util.h"
49 #include "strv.h"
50 #include "dbus-common.h"
51 #include "cgroup-show.h"
52 #include "cgroup-util.h"
53 #include "list.h"
54 #include "path-lookup.h"
55 #include "conf-parser.h"
56 #include "exit-status.h"
57 #include "bus-errors.h"
58 #include "build.h"
59 #include "unit-name.h"
60 #include "pager.h"
61 #include "spawn-ask-password-agent.h"
62 #include "spawn-polkit-agent.h"
63 #include "install.h"
64 #include "logs-show.h"
65 #include "path-util.h"
66
67 static const char *arg_type = NULL;
68 static const char *arg_load_state = NULL;
69 static char **arg_property = NULL;
70 static bool arg_all = false;
71 static const char *arg_job_mode = "replace";
72 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
73 static bool arg_no_block = false;
74 static bool arg_no_legend = false;
75 static bool arg_no_pager = false;
76 static bool arg_no_wtmp = false;
77 static bool arg_no_sync = false;
78 static bool arg_no_wall = false;
79 static bool arg_no_reload = false;
80 static bool arg_dry = false;
81 static bool arg_quiet = false;
82 static bool arg_full = false;
83 static int arg_force = 0;
84 static bool arg_ask_password = true;
85 static bool arg_failed = false;
86 static bool arg_runtime = false;
87 static char **arg_wall = NULL;
88 static const char *arg_kill_who = NULL;
89 static const char *arg_kill_mode = NULL;
90 static int arg_signal = SIGTERM;
91 static const char *arg_root = NULL;
92 static usec_t arg_when = 0;
93 static enum action {
94 ACTION_INVALID,
95 ACTION_SYSTEMCTL,
96 ACTION_HALT,
97 ACTION_POWEROFF,
98 ACTION_REBOOT,
99 ACTION_KEXEC,
100 ACTION_EXIT,
101 ACTION_SUSPEND,
102 ACTION_HIBERNATE,
103 ACTION_RUNLEVEL2,
104 ACTION_RUNLEVEL3,
105 ACTION_RUNLEVEL4,
106 ACTION_RUNLEVEL5,
107 ACTION_RESCUE,
108 ACTION_EMERGENCY,
109 ACTION_DEFAULT,
110 ACTION_RELOAD,
111 ACTION_REEXEC,
112 ACTION_RUNLEVEL,
113 ACTION_CANCEL_SHUTDOWN,
114 _ACTION_MAX
115 } arg_action = ACTION_SYSTEMCTL;
116 static enum dot {
117 DOT_ALL,
118 DOT_ORDER,
119 DOT_REQUIRE
120 } arg_dot = DOT_ALL;
121 static enum transport {
122 TRANSPORT_NORMAL,
123 TRANSPORT_SSH,
124 TRANSPORT_POLKIT
125 } arg_transport = TRANSPORT_NORMAL;
126 static const char *arg_host = NULL;
127 static bool arg_follow = false;
128 static unsigned arg_lines = 10;
129 static OutputMode arg_output = OUTPUT_SHORT;
130
131 static bool private_bus = false;
132
133 static int daemon_reload(DBusConnection *bus, char **args);
134 static void halt_now(enum action a);
135
136 static bool on_tty(void) {
137 static int t = -1;
138
139 /* Note that this is invoked relatively early, before we start
140 * the pager. That means the value we return reflects whether
141 * we originally were started on a tty, not if we currently
142 * are. But this is intended, since we want colour and so on
143 * when run in our own pager. */
144
145 if (_unlikely_(t < 0))
146 t = isatty(STDOUT_FILENO) > 0;
147
148 return t;
149 }
150
151 static void pager_open_if_enabled(void) {
152
153 /* Cache result before we open the pager */
154 on_tty();
155
156 if (arg_no_pager)
157 return;
158
159 pager_open();
160 }
161
162 static void ask_password_agent_open_if_enabled(void) {
163
164 /* Open the password agent as a child process if necessary */
165
166 if (!arg_ask_password)
167 return;
168
169 if (arg_scope != UNIT_FILE_SYSTEM)
170 return;
171
172 ask_password_agent_open();
173 }
174
175 #ifdef HAVE_LOGIND
176 static void polkit_agent_open_if_enabled(void) {
177
178 /* Open the polkit agent as a child process if necessary */
179
180 if (!arg_ask_password)
181 return;
182
183 if (arg_scope != UNIT_FILE_SYSTEM)
184 return;
185
186 polkit_agent_open();
187 }
188 #endif
189
190 static const char *ansi_highlight_red(bool b) {
191
192 if (!on_tty())
193 return "";
194
195 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
196 }
197
198 static const char *ansi_highlight_green(bool b) {
199
200 if (!on_tty())
201 return "";
202
203 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
204 }
205
206 static bool error_is_no_service(const DBusError *error) {
207 assert(error);
208
209 if (!dbus_error_is_set(error))
210 return false;
211
212 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
213 return true;
214
215 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
216 return true;
217
218 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
219 }
220
221 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
222 assert(error);
223
224 if (!dbus_error_is_set(error))
225 return r;
226
227 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
228 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
229 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
230 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
231 return EXIT_NOPERMISSION;
232
233 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
234 return EXIT_NOTINSTALLED;
235
236 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
237 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
238 return EXIT_NOTIMPLEMENTED;
239
240 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
241 return EXIT_NOTCONFIGURED;
242
243 if (r != 0)
244 return r;
245
246 return EXIT_FAILURE;
247 }
248
249 static void warn_wall(enum action a) {
250 static const char *table[_ACTION_MAX] = {
251 [ACTION_HALT] = "The system is going down for system halt NOW!",
252 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
253 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
254 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
255 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
256 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
257 };
258
259 if (arg_no_wall)
260 return;
261
262 if (arg_wall) {
263 char *p;
264
265 p = strv_join(arg_wall, " ");
266 if (!p) {
267 log_error("Failed to join strings.");
268 return;
269 }
270
271 if (*p) {
272 utmp_wall(p, NULL);
273 free(p);
274 return;
275 }
276
277 free(p);
278 }
279
280 if (!table[a])
281 return;
282
283 utmp_wall(table[a], NULL);
284 }
285
286 static bool avoid_bus(void) {
287
288 if (running_in_chroot() > 0)
289 return true;
290
291 if (sd_booted() <= 0)
292 return true;
293
294 if (!isempty(arg_root))
295 return true;
296
297 if (arg_scope == UNIT_FILE_GLOBAL)
298 return true;
299
300 return false;
301 }
302
303 struct unit_info {
304 const char *id;
305 const char *description;
306 const char *load_state;
307 const char *active_state;
308 const char *sub_state;
309 const char *following;
310 const char *unit_path;
311 uint32_t job_id;
312 const char *job_type;
313 const char *job_path;
314 };
315
316 static int compare_unit_info(const void *a, const void *b) {
317 const char *d1, *d2;
318 const struct unit_info *u = a, *v = b;
319
320 d1 = strrchr(u->id, '.');
321 d2 = strrchr(v->id, '.');
322
323 if (d1 && d2) {
324 int r;
325
326 if ((r = strcasecmp(d1, d2)) != 0)
327 return r;
328 }
329
330 return strcasecmp(u->id, v->id);
331 }
332
333 static bool output_show_unit(const struct unit_info *u) {
334 const char *dot;
335
336 if (arg_failed)
337 return streq(u->active_state, "failed");
338
339 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
340 streq(dot+1, arg_type))) &&
341 (!arg_load_state || streq(u->load_state, arg_load_state)) &&
342 (arg_all || !(streq(u->active_state, "inactive")
343 || u->following[0]) || u->job_id > 0);
344 }
345
346 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
347 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
348 const struct unit_info *u;
349
350 max_id_len = sizeof("UNIT")-1;
351 active_len = sizeof("ACTIVE")-1;
352 sub_len = sizeof("SUB")-1;
353 job_len = sizeof("JOB")-1;
354 desc_len = 0;
355
356 for (u = unit_infos; u < unit_infos + c; u++) {
357 if (!output_show_unit(u))
358 continue;
359
360 max_id_len = MAX(max_id_len, strlen(u->id));
361 active_len = MAX(active_len, strlen(u->active_state));
362 sub_len = MAX(sub_len, strlen(u->sub_state));
363 if (u->job_id != 0)
364 job_len = MAX(job_len, strlen(u->job_type));
365 }
366
367 if (!arg_full) {
368 unsigned basic_len;
369 id_len = MIN(max_id_len, 25);
370 basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
371 if (basic_len < (unsigned) columns()) {
372 unsigned extra_len, incr;
373 extra_len = columns() - basic_len;
374 /* Either UNIT already got 25, or is fully satisfied.
375 * Grant up to 25 to DESC now. */
376 incr = MIN(extra_len, 25);
377 desc_len += incr;
378 extra_len -= incr;
379 /* split the remaining space between UNIT and DESC,
380 * but do not give UNIT more than it needs. */
381 if (extra_len > 0) {
382 incr = MIN(extra_len / 2, max_id_len - id_len);
383 id_len += incr;
384 desc_len += extra_len - incr;
385 }
386 }
387 } else
388 id_len = max_id_len;
389
390 if (!arg_no_legend) {
391 printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
392 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
393 if (!arg_full && arg_no_pager)
394 printf("%.*s\n", desc_len, "DESCRIPTION");
395 else
396 printf("%s\n", "DESCRIPTION");
397 }
398
399 for (u = unit_infos; u < unit_infos + c; u++) {
400 char *e;
401 const char *on_loaded, *off_loaded;
402 const char *on_active, *off_active;
403
404 if (!output_show_unit(u))
405 continue;
406
407 n_shown++;
408
409 if (streq(u->load_state, "error")) {
410 on_loaded = ansi_highlight_red(true);
411 off_loaded = ansi_highlight_red(false);
412 } else
413 on_loaded = off_loaded = "";
414
415 if (streq(u->active_state, "failed")) {
416 on_active = ansi_highlight_red(true);
417 off_active = ansi_highlight_red(false);
418 } else
419 on_active = off_active = "";
420
421 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
422
423 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
424 id_len, e ? e : u->id,
425 on_loaded, u->load_state, off_loaded,
426 on_active, active_len, u->active_state,
427 sub_len, u->sub_state, off_active,
428 job_len, u->job_id ? u->job_type : "");
429 if (!arg_full && arg_no_pager)
430 printf("%.*s\n", desc_len, u->description);
431 else
432 printf("%s\n", u->description);
433
434 free(e);
435 }
436
437 if (!arg_no_legend) {
438 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
439 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
440 "SUB = The low-level unit activation state, values depend on unit type.\n"
441 "JOB = Pending job for the unit.\n");
442
443 if (arg_all)
444 printf("\n%u units listed.\n", n_shown);
445 else
446 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
447 }
448 }
449
450 static int list_units(DBusConnection *bus, char **args) {
451 DBusMessage *m = NULL, *reply = NULL;
452 DBusError error;
453 int r;
454 DBusMessageIter iter, sub, sub2;
455 unsigned c = 0, n_units = 0;
456 struct unit_info *unit_infos = NULL;
457
458 dbus_error_init(&error);
459
460 assert(bus);
461
462 pager_open_if_enabled();
463
464 if (!(m = dbus_message_new_method_call(
465 "org.freedesktop.systemd1",
466 "/org/freedesktop/systemd1",
467 "org.freedesktop.systemd1.Manager",
468 "ListUnits"))) {
469 log_error("Could not allocate message.");
470 return -ENOMEM;
471 }
472
473 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
474 log_error("Failed to issue method call: %s", bus_error_message(&error));
475 r = -EIO;
476 goto finish;
477 }
478
479 if (!dbus_message_iter_init(reply, &iter) ||
480 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
481 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
482 log_error("Failed to parse reply.");
483 r = -EIO;
484 goto finish;
485 }
486
487 dbus_message_iter_recurse(&iter, &sub);
488
489 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
490 struct unit_info *u;
491
492 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
493 log_error("Failed to parse reply.");
494 r = -EIO;
495 goto finish;
496 }
497
498 if (c >= n_units) {
499 struct unit_info *w;
500
501 n_units = MAX(2*c, 16);
502 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
503
504 if (!w) {
505 log_error("Failed to allocate unit array.");
506 r = -ENOMEM;
507 goto finish;
508 }
509
510 unit_infos = w;
511 }
512
513 u = unit_infos+c;
514
515 dbus_message_iter_recurse(&sub, &sub2);
516
517 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
518 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
519 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
520 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
521 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
522 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
523 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
524 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
525 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
526 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
527 log_error("Failed to parse reply.");
528 r = -EIO;
529 goto finish;
530 }
531
532 dbus_message_iter_next(&sub);
533 c++;
534 }
535
536 if (c > 0) {
537 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
538 output_units_list(unit_infos, c);
539 }
540
541 r = 0;
542
543 finish:
544 if (m)
545 dbus_message_unref(m);
546
547 if (reply)
548 dbus_message_unref(reply);
549
550 free(unit_infos);
551
552 dbus_error_free(&error);
553
554 return r;
555 }
556
557 static int compare_unit_file_list(const void *a, const void *b) {
558 const char *d1, *d2;
559 const UnitFileList *u = a, *v = b;
560
561 d1 = strrchr(u->path, '.');
562 d2 = strrchr(v->path, '.');
563
564 if (d1 && d2) {
565 int r;
566
567 r = strcasecmp(d1, d2);
568 if (r != 0)
569 return r;
570 }
571
572 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
573 }
574
575 static bool output_show_unit_file(const UnitFileList *u) {
576 const char *dot;
577
578 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
579 }
580
581 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
582 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
583 const UnitFileList *u;
584
585 max_id_len = sizeof("UNIT FILE")-1;
586 state_cols = sizeof("STATE")-1;
587 for (u = units; u < units + c; u++) {
588 if (!output_show_unit_file(u))
589 continue;
590
591 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
592 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
593 }
594
595 if (!arg_full) {
596 unsigned basic_cols;
597 id_cols = MIN(max_id_len, 25);
598 basic_cols = 1 + id_cols + state_cols;
599 if (basic_cols < (unsigned) columns())
600 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
601 } else
602 id_cols = max_id_len;
603
604 if (!arg_no_legend)
605 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
606
607 for (u = units; u < units + c; u++) {
608 char *e;
609 const char *on, *off;
610 const char *id;
611
612 if (!output_show_unit_file(u))
613 continue;
614
615 n_shown++;
616
617 if (u->state == UNIT_FILE_MASKED ||
618 u->state == UNIT_FILE_MASKED_RUNTIME ||
619 u->state == UNIT_FILE_DISABLED) {
620 on = ansi_highlight_red(true);
621 off = ansi_highlight_red(false);
622 } else if (u->state == UNIT_FILE_ENABLED) {
623 on = ansi_highlight_green(true);
624 off = ansi_highlight_green(false);
625 } else
626 on = off = "";
627
628 id = path_get_file_name(u->path);
629
630 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
631
632 printf("%-*s %s%-*s%s\n",
633 id_cols, e ? e : id,
634 on, state_cols, unit_file_state_to_string(u->state), off);
635
636 free(e);
637 }
638
639 if (!arg_no_legend)
640 printf("\n%u unit files listed.\n", n_shown);
641 }
642
643 static int list_unit_files(DBusConnection *bus, char **args) {
644 DBusMessage *m = NULL, *reply = NULL;
645 DBusError error;
646 int r;
647 DBusMessageIter iter, sub, sub2;
648 unsigned c = 0, n_units = 0;
649 UnitFileList *units = NULL;
650
651 dbus_error_init(&error);
652
653 pager_open_if_enabled();
654
655 if (avoid_bus()) {
656 Hashmap *h;
657 UnitFileList *u;
658 Iterator i;
659
660 h = hashmap_new(string_hash_func, string_compare_func);
661 if (!h) {
662 log_error("Out of memory");
663 return -ENOMEM;
664 }
665
666 r = unit_file_get_list(arg_scope, arg_root, h);
667 if (r < 0) {
668 unit_file_list_free(h);
669 log_error("Failed to get unit file list: %s", strerror(-r));
670 return r;
671 }
672
673 n_units = hashmap_size(h);
674 units = new(UnitFileList, n_units);
675 if (!units) {
676 unit_file_list_free(h);
677 log_error("Out of memory");
678 return -ENOMEM;
679 }
680
681 HASHMAP_FOREACH(u, h, i) {
682 memcpy(units + c++, u, sizeof(UnitFileList));
683 free(u);
684 }
685
686 hashmap_free(h);
687 } else {
688 assert(bus);
689
690 m = dbus_message_new_method_call(
691 "org.freedesktop.systemd1",
692 "/org/freedesktop/systemd1",
693 "org.freedesktop.systemd1.Manager",
694 "ListUnitFiles");
695 if (!m) {
696 log_error("Could not allocate message.");
697 return -ENOMEM;
698 }
699
700 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
701 if (!reply) {
702 log_error("Failed to issue method call: %s", bus_error_message(&error));
703 r = -EIO;
704 goto finish;
705 }
706
707 if (!dbus_message_iter_init(reply, &iter) ||
708 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
709 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
710 log_error("Failed to parse reply.");
711 r = -EIO;
712 goto finish;
713 }
714
715 dbus_message_iter_recurse(&iter, &sub);
716
717 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
718 UnitFileList *u;
719 const char *state;
720
721 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
722 log_error("Failed to parse reply.");
723 r = -EIO;
724 goto finish;
725 }
726
727 if (c >= n_units) {
728 UnitFileList *w;
729
730 n_units = MAX(2*c, 16);
731 w = realloc(units, sizeof(struct UnitFileList) * n_units);
732
733 if (!w) {
734 log_error("Failed to allocate unit array.");
735 r = -ENOMEM;
736 goto finish;
737 }
738
739 units = w;
740 }
741
742 u = units+c;
743
744 dbus_message_iter_recurse(&sub, &sub2);
745
746 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
747 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
748 log_error("Failed to parse reply.");
749 r = -EIO;
750 goto finish;
751 }
752
753 u->state = unit_file_state_from_string(state);
754
755 dbus_message_iter_next(&sub);
756 c++;
757 }
758 }
759
760 if (c > 0) {
761 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
762 output_unit_file_list(units, c);
763 }
764
765 r = 0;
766
767 finish:
768 if (m)
769 dbus_message_unref(m);
770
771 if (reply)
772 dbus_message_unref(reply);
773
774 free(units);
775
776 dbus_error_free(&error);
777
778 return r;
779 }
780
781 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
782 static const char * const colors[] = {
783 "Requires", "[color=\"black\"]",
784 "RequiresOverridable", "[color=\"black\"]",
785 "Requisite", "[color=\"darkblue\"]",
786 "RequisiteOverridable", "[color=\"darkblue\"]",
787 "Wants", "[color=\"darkgrey\"]",
788 "Conflicts", "[color=\"red\"]",
789 "ConflictedBy", "[color=\"red\"]",
790 "After", "[color=\"green\"]"
791 };
792
793 const char *c = NULL;
794 unsigned i;
795
796 assert(name);
797 assert(prop);
798 assert(iter);
799
800 for (i = 0; i < ELEMENTSOF(colors); i += 2)
801 if (streq(colors[i], prop)) {
802 c = colors[i+1];
803 break;
804 }
805
806 if (!c)
807 return 0;
808
809 if (arg_dot != DOT_ALL)
810 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
811 return 0;
812
813 switch (dbus_message_iter_get_arg_type(iter)) {
814
815 case DBUS_TYPE_ARRAY:
816
817 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
818 DBusMessageIter sub;
819
820 dbus_message_iter_recurse(iter, &sub);
821
822 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
823 const char *s;
824
825 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
826 dbus_message_iter_get_basic(&sub, &s);
827 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
828
829 dbus_message_iter_next(&sub);
830 }
831
832 return 0;
833 }
834 }
835
836 return 0;
837 }
838
839 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
840 DBusMessage *m = NULL, *reply = NULL;
841 const char *interface = "org.freedesktop.systemd1.Unit";
842 int r;
843 DBusError error;
844 DBusMessageIter iter, sub, sub2, sub3;
845
846 assert(bus);
847 assert(path);
848
849 dbus_error_init(&error);
850
851 if (!(m = dbus_message_new_method_call(
852 "org.freedesktop.systemd1",
853 path,
854 "org.freedesktop.DBus.Properties",
855 "GetAll"))) {
856 log_error("Could not allocate message.");
857 r = -ENOMEM;
858 goto finish;
859 }
860
861 if (!dbus_message_append_args(m,
862 DBUS_TYPE_STRING, &interface,
863 DBUS_TYPE_INVALID)) {
864 log_error("Could not append arguments to message.");
865 r = -ENOMEM;
866 goto finish;
867 }
868
869 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
870 log_error("Failed to issue method call: %s", bus_error_message(&error));
871 r = -EIO;
872 goto finish;
873 }
874
875 if (!dbus_message_iter_init(reply, &iter) ||
876 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
877 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
878 log_error("Failed to parse reply.");
879 r = -EIO;
880 goto finish;
881 }
882
883 dbus_message_iter_recurse(&iter, &sub);
884
885 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
886 const char *prop;
887
888 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
889 log_error("Failed to parse reply.");
890 r = -EIO;
891 goto finish;
892 }
893
894 dbus_message_iter_recurse(&sub, &sub2);
895
896 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
897 log_error("Failed to parse reply.");
898 r = -EIO;
899 goto finish;
900 }
901
902 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
903 log_error("Failed to parse reply.");
904 r = -EIO;
905 goto finish;
906 }
907
908 dbus_message_iter_recurse(&sub2, &sub3);
909
910 if (dot_one_property(name, prop, &sub3)) {
911 log_error("Failed to parse reply.");
912 r = -EIO;
913 goto finish;
914 }
915
916 dbus_message_iter_next(&sub);
917 }
918
919 r = 0;
920
921 finish:
922 if (m)
923 dbus_message_unref(m);
924
925 if (reply)
926 dbus_message_unref(reply);
927
928 dbus_error_free(&error);
929
930 return r;
931 }
932
933 static int dot(DBusConnection *bus, char **args) {
934 DBusMessage *m = NULL, *reply = NULL;
935 DBusError error;
936 int r;
937 DBusMessageIter iter, sub, sub2;
938
939 dbus_error_init(&error);
940
941 assert(bus);
942
943 if (!(m = dbus_message_new_method_call(
944 "org.freedesktop.systemd1",
945 "/org/freedesktop/systemd1",
946 "org.freedesktop.systemd1.Manager",
947 "ListUnits"))) {
948 log_error("Could not allocate message.");
949 return -ENOMEM;
950 }
951
952 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
953 log_error("Failed to issue method call: %s", bus_error_message(&error));
954 r = -EIO;
955 goto finish;
956 }
957
958 if (!dbus_message_iter_init(reply, &iter) ||
959 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
960 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
961 log_error("Failed to parse reply.");
962 r = -EIO;
963 goto finish;
964 }
965
966 printf("digraph systemd {\n");
967
968 dbus_message_iter_recurse(&iter, &sub);
969 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
970 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
971
972 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
973 log_error("Failed to parse reply.");
974 r = -EIO;
975 goto finish;
976 }
977
978 dbus_message_iter_recurse(&sub, &sub2);
979
980 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
983 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
984 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
985 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
986 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
987 log_error("Failed to parse reply.");
988 r = -EIO;
989 goto finish;
990 }
991
992 if ((r = dot_one(bus, id, unit_path)) < 0)
993 goto finish;
994
995 /* printf("\t\"%s\";\n", id); */
996 dbus_message_iter_next(&sub);
997 }
998
999 printf("}\n");
1000
1001 log_info(" Color legend: black = Requires\n"
1002 " dark blue = Requisite\n"
1003 " dark grey = Wants\n"
1004 " red = Conflicts\n"
1005 " green = After\n");
1006
1007 if (on_tty())
1008 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
1009 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
1010
1011 r = 0;
1012
1013 finish:
1014 if (m)
1015 dbus_message_unref(m);
1016
1017 if (reply)
1018 dbus_message_unref(reply);
1019
1020 dbus_error_free(&error);
1021
1022 return r;
1023 }
1024
1025 static int list_jobs(DBusConnection *bus, char **args) {
1026 DBusMessage *m = NULL, *reply = NULL;
1027 DBusError error;
1028 int r;
1029 DBusMessageIter iter, sub, sub2;
1030 unsigned k = 0;
1031
1032 dbus_error_init(&error);
1033
1034 assert(bus);
1035
1036 pager_open_if_enabled();
1037
1038 if (!(m = dbus_message_new_method_call(
1039 "org.freedesktop.systemd1",
1040 "/org/freedesktop/systemd1",
1041 "org.freedesktop.systemd1.Manager",
1042 "ListJobs"))) {
1043 log_error("Could not allocate message.");
1044 return -ENOMEM;
1045 }
1046
1047 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1048 log_error("Failed to issue method call: %s", bus_error_message(&error));
1049 r = -EIO;
1050 goto finish;
1051 }
1052
1053 if (!dbus_message_iter_init(reply, &iter) ||
1054 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1055 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1056 log_error("Failed to parse reply.");
1057 r = -EIO;
1058 goto finish;
1059 }
1060
1061 dbus_message_iter_recurse(&iter, &sub);
1062
1063 if (on_tty())
1064 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1065
1066 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1067 const char *name, *type, *state, *job_path, *unit_path;
1068 uint32_t id;
1069 char *e;
1070
1071 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1072 log_error("Failed to parse reply.");
1073 r = -EIO;
1074 goto finish;
1075 }
1076
1077 dbus_message_iter_recurse(&sub, &sub2);
1078
1079 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1080 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1081 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1082 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1083 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1084 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1085 log_error("Failed to parse reply.");
1086 r = -EIO;
1087 goto finish;
1088 }
1089
1090 e = arg_full ? NULL : ellipsize(name, 25, 33);
1091 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1092 free(e);
1093
1094 k++;
1095
1096 dbus_message_iter_next(&sub);
1097 }
1098
1099 if (on_tty())
1100 printf("\n%u jobs listed.\n", k);
1101
1102 r = 0;
1103
1104 finish:
1105 if (m)
1106 dbus_message_unref(m);
1107
1108 if (reply)
1109 dbus_message_unref(reply);
1110
1111 dbus_error_free(&error);
1112
1113 return r;
1114 }
1115
1116 static int load_unit(DBusConnection *bus, char **args) {
1117 DBusMessage *m = NULL;
1118 DBusError error;
1119 int r;
1120 char **name;
1121
1122 dbus_error_init(&error);
1123
1124 assert(bus);
1125 assert(args);
1126
1127 STRV_FOREACH(name, args+1) {
1128 DBusMessage *reply;
1129 bool b;
1130 char *n;
1131
1132 if (!(m = dbus_message_new_method_call(
1133 "org.freedesktop.systemd1",
1134 "/org/freedesktop/systemd1",
1135 "org.freedesktop.systemd1.Manager",
1136 "LoadUnit"))) {
1137 log_error("Could not allocate message.");
1138 r = -ENOMEM;
1139 goto finish;
1140 }
1141
1142 n = unit_name_mangle(*name);
1143 b = dbus_message_append_args(m,
1144 DBUS_TYPE_STRING, n ? &n : name,
1145 DBUS_TYPE_INVALID);
1146 free(n);
1147 if (!b) {
1148 log_error("Could not append arguments to message.");
1149 r = -ENOMEM;
1150 goto finish;
1151 }
1152
1153 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1154 if (!reply) {
1155 log_error("Failed to issue method call: %s", bus_error_message(&error));
1156 r = -EIO;
1157 goto finish;
1158 }
1159
1160 dbus_message_unref(m);
1161 dbus_message_unref(reply);
1162
1163 m = reply = NULL;
1164 }
1165
1166 r = 0;
1167
1168 finish:
1169 if (m)
1170 dbus_message_unref(m);
1171
1172 dbus_error_free(&error);
1173
1174 return r;
1175 }
1176
1177 static int cancel_job(DBusConnection *bus, char **args) {
1178 DBusMessage *m = NULL, *reply = NULL;
1179 DBusError error;
1180 int r;
1181 char **name;
1182
1183 dbus_error_init(&error);
1184
1185 assert(bus);
1186 assert(args);
1187
1188 if (strv_length(args) <= 1)
1189 return daemon_reload(bus, args);
1190
1191 STRV_FOREACH(name, args+1) {
1192 unsigned id;
1193 const char *path;
1194
1195 if (!(m = dbus_message_new_method_call(
1196 "org.freedesktop.systemd1",
1197 "/org/freedesktop/systemd1",
1198 "org.freedesktop.systemd1.Manager",
1199 "GetJob"))) {
1200 log_error("Could not allocate message.");
1201 r = -ENOMEM;
1202 goto finish;
1203 }
1204
1205 if ((r = safe_atou(*name, &id)) < 0) {
1206 log_error("Failed to parse job id: %s", strerror(-r));
1207 goto finish;
1208 }
1209
1210 assert_cc(sizeof(uint32_t) == sizeof(id));
1211 if (!dbus_message_append_args(m,
1212 DBUS_TYPE_UINT32, &id,
1213 DBUS_TYPE_INVALID)) {
1214 log_error("Could not append arguments to message.");
1215 r = -ENOMEM;
1216 goto finish;
1217 }
1218
1219 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1220 log_error("Failed to issue method call: %s", bus_error_message(&error));
1221 r = -EIO;
1222 goto finish;
1223 }
1224
1225 if (!dbus_message_get_args(reply, &error,
1226 DBUS_TYPE_OBJECT_PATH, &path,
1227 DBUS_TYPE_INVALID)) {
1228 log_error("Failed to parse reply: %s", bus_error_message(&error));
1229 r = -EIO;
1230 goto finish;
1231 }
1232
1233 dbus_message_unref(m);
1234 if (!(m = dbus_message_new_method_call(
1235 "org.freedesktop.systemd1",
1236 path,
1237 "org.freedesktop.systemd1.Job",
1238 "Cancel"))) {
1239 log_error("Could not allocate message.");
1240 r = -ENOMEM;
1241 goto finish;
1242 }
1243
1244 dbus_message_unref(reply);
1245 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1246 log_error("Failed to issue method call: %s", bus_error_message(&error));
1247 r = -EIO;
1248 goto finish;
1249 }
1250
1251 dbus_message_unref(m);
1252 dbus_message_unref(reply);
1253 m = reply = NULL;
1254 }
1255
1256 r = 0;
1257
1258 finish:
1259 if (m)
1260 dbus_message_unref(m);
1261
1262 if (reply)
1263 dbus_message_unref(reply);
1264
1265 dbus_error_free(&error);
1266
1267 return r;
1268 }
1269
1270 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1271 DBusMessage *m = NULL, *reply = NULL;
1272 dbus_bool_t b = FALSE;
1273 DBusMessageIter iter, sub;
1274 const char
1275 *interface = "org.freedesktop.systemd1.Unit",
1276 *property = "NeedDaemonReload",
1277 *path;
1278 char *n;
1279 bool k;
1280
1281 /* We ignore all errors here, since this is used to show a warning only */
1282
1283 m = dbus_message_new_method_call(
1284 "org.freedesktop.systemd1",
1285 "/org/freedesktop/systemd1",
1286 "org.freedesktop.systemd1.Manager",
1287 "GetUnit");
1288 if (!m)
1289 goto finish;
1290
1291 n = unit_name_mangle(unit);
1292 k = dbus_message_append_args(m,
1293 DBUS_TYPE_STRING, n ? (const char**) &n : &unit,
1294 DBUS_TYPE_INVALID);
1295 free(n);
1296 if (!k)
1297 goto finish;
1298
1299 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1300 if (!reply)
1301 goto finish;
1302
1303 if (!dbus_message_get_args(reply, NULL,
1304 DBUS_TYPE_OBJECT_PATH, &path,
1305 DBUS_TYPE_INVALID))
1306 goto finish;
1307
1308 dbus_message_unref(m);
1309 m = dbus_message_new_method_call(
1310 "org.freedesktop.systemd1",
1311 path,
1312 "org.freedesktop.DBus.Properties",
1313 "Get");
1314 if (!m)
1315 goto finish;
1316
1317 if (!dbus_message_append_args(m,
1318 DBUS_TYPE_STRING, &interface,
1319 DBUS_TYPE_STRING, &property,
1320 DBUS_TYPE_INVALID)) {
1321 goto finish;
1322 }
1323
1324 dbus_message_unref(reply);
1325 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1326 if (!reply)
1327 goto finish;
1328
1329 if (!dbus_message_iter_init(reply, &iter) ||
1330 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1331 goto finish;
1332
1333 dbus_message_iter_recurse(&iter, &sub);
1334
1335 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1336 goto finish;
1337
1338 dbus_message_iter_get_basic(&sub, &b);
1339
1340 finish:
1341 if (m)
1342 dbus_message_unref(m);
1343
1344 if (reply)
1345 dbus_message_unref(reply);
1346
1347 return b;
1348 }
1349
1350 typedef struct WaitData {
1351 Set *set;
1352 char *result;
1353 } WaitData;
1354
1355 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1356 DBusError error;
1357 WaitData *d = data;
1358
1359 assert(connection);
1360 assert(message);
1361 assert(d);
1362
1363 dbus_error_init(&error);
1364
1365 log_debug("Got D-Bus request: %s.%s() on %s",
1366 dbus_message_get_interface(message),
1367 dbus_message_get_member(message),
1368 dbus_message_get_path(message));
1369
1370 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1371 log_error("Warning! D-Bus connection terminated.");
1372 dbus_connection_close(connection);
1373
1374 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1375 uint32_t id;
1376 const char *path, *result, *unit;
1377 dbus_bool_t success = true;
1378
1379 if (dbus_message_get_args(message, &error,
1380 DBUS_TYPE_UINT32, &id,
1381 DBUS_TYPE_OBJECT_PATH, &path,
1382 DBUS_TYPE_STRING, &unit,
1383 DBUS_TYPE_STRING, &result,
1384 DBUS_TYPE_INVALID)) {
1385 char *p;
1386
1387 p = set_remove(d->set, (char*) path);
1388 free(p);
1389
1390 if (*result)
1391 d->result = strdup(result);
1392
1393 goto finish;
1394 }
1395 #ifndef LEGACY
1396 dbus_error_free(&error);
1397 if (dbus_message_get_args(message, &error,
1398 DBUS_TYPE_UINT32, &id,
1399 DBUS_TYPE_OBJECT_PATH, &path,
1400 DBUS_TYPE_STRING, &result,
1401 DBUS_TYPE_INVALID)) {
1402 char *p;
1403
1404 /* Compatibility with older systemd versions <
1405 * 183 during upgrades. This should be dropped
1406 * one day. */
1407 p = set_remove(d->set, (char*) path);
1408 free(p);
1409
1410 if (*result)
1411 d->result = strdup(result);
1412
1413 goto finish;
1414 }
1415
1416 dbus_error_free(&error);
1417 if (dbus_message_get_args(message, &error,
1418 DBUS_TYPE_UINT32, &id,
1419 DBUS_TYPE_OBJECT_PATH, &path,
1420 DBUS_TYPE_BOOLEAN, &success,
1421 DBUS_TYPE_INVALID)) {
1422 char *p;
1423
1424 /* Compatibility with older systemd versions <
1425 * 19 during upgrades. This should be dropped
1426 * one day */
1427
1428 p = set_remove(d->set, (char*) path);
1429 free(p);
1430
1431 if (!success)
1432 d->result = strdup("failed");
1433
1434 goto finish;
1435 }
1436 #endif
1437
1438 log_error("Failed to parse message: %s", bus_error_message(&error));
1439 }
1440
1441 finish:
1442 dbus_error_free(&error);
1443 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1444 }
1445
1446 static int enable_wait_for_jobs(DBusConnection *bus) {
1447 DBusError error;
1448
1449 assert(bus);
1450
1451 if (private_bus)
1452 return 0;
1453
1454 dbus_error_init(&error);
1455 dbus_bus_add_match(bus,
1456 "type='signal',"
1457 "sender='org.freedesktop.systemd1',"
1458 "interface='org.freedesktop.systemd1.Manager',"
1459 "member='JobRemoved',"
1460 "path='/org/freedesktop/systemd1'",
1461 &error);
1462
1463 if (dbus_error_is_set(&error)) {
1464 log_error("Failed to add match: %s", bus_error_message(&error));
1465 dbus_error_free(&error);
1466 return -EIO;
1467 }
1468
1469 /* This is slightly dirty, since we don't undo the match registrations. */
1470 return 0;
1471 }
1472
1473 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1474 int r;
1475 WaitData d;
1476
1477 assert(bus);
1478 assert(s);
1479
1480 zero(d);
1481 d.set = s;
1482
1483 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1484 log_error("Failed to add filter.");
1485 r = -ENOMEM;
1486 goto finish;
1487 }
1488
1489 while (!set_isempty(s) &&
1490 dbus_connection_read_write_dispatch(bus, -1))
1491 ;
1492
1493 if (!arg_quiet && d.result) {
1494 if (streq(d.result, "timeout"))
1495 log_error("Job timed out.");
1496 else if (streq(d.result, "canceled"))
1497 log_error("Job canceled.");
1498 else if (streq(d.result, "dependency"))
1499 log_error("A dependency job failed. See system journal for details.");
1500 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1501 log_error("Job failed. See system journal and 'systemctl status' for details.");
1502 }
1503
1504 if (streq_ptr(d.result, "timeout"))
1505 r = -ETIME;
1506 else if (streq_ptr(d.result, "canceled"))
1507 r = -ECANCELED;
1508 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1509 r = -EIO;
1510 else
1511 r = 0;
1512
1513 free(d.result);
1514
1515 finish:
1516 /* This is slightly dirty, since we don't undo the filter registration. */
1517
1518 return r;
1519 }
1520
1521 static int check_one_unit(DBusConnection *bus, char *name, bool quiet) {
1522 DBusMessage *m = NULL, *reply = NULL;
1523 DBusError error;
1524 DBusMessageIter iter, sub;
1525 const char
1526 *interface = "org.freedesktop.systemd1.Unit",
1527 *property = "ActiveState";
1528 const char *path = NULL;
1529 const char *state;
1530 int r = 3; /* According to LSB: "program is not running" */
1531 char *n;
1532 bool b;
1533
1534 assert(bus);
1535 assert(name);
1536
1537 dbus_error_init(&error);
1538
1539 m = dbus_message_new_method_call(
1540 "org.freedesktop.systemd1",
1541 "/org/freedesktop/systemd1",
1542 "org.freedesktop.systemd1.Manager",
1543 "GetUnit");
1544 if (!m) {
1545 log_error("Could not allocate message.");
1546 r = -ENOMEM;
1547 goto finish;
1548 }
1549
1550 n = unit_name_mangle(name);
1551 b = dbus_message_append_args(m,
1552 DBUS_TYPE_STRING, n ? &n : &name,
1553 DBUS_TYPE_INVALID);
1554 free(n);
1555 if (!b) {
1556 log_error("Could not append arguments to message.");
1557 r = -ENOMEM;
1558 goto finish;
1559 }
1560
1561 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1562 if (!reply) {
1563 /* Hmm, cannot figure out anything about this unit... */
1564 if (!quiet)
1565 puts("unknown");
1566
1567 goto finish;
1568 }
1569
1570 if (!dbus_message_get_args(reply, &error,
1571 DBUS_TYPE_OBJECT_PATH, &path,
1572 DBUS_TYPE_INVALID)) {
1573 log_error("Failed to parse reply: %s", bus_error_message(&error));
1574 r = -EIO;
1575 goto finish;
1576 }
1577
1578 dbus_message_unref(m);
1579 m = dbus_message_new_method_call(
1580 "org.freedesktop.systemd1",
1581 path,
1582 "org.freedesktop.DBus.Properties",
1583 "Get");
1584 if (!m) {
1585 log_error("Could not allocate message.");
1586 r = -ENOMEM;
1587 goto finish;
1588 }
1589
1590 if (!dbus_message_append_args(m,
1591 DBUS_TYPE_STRING, &interface,
1592 DBUS_TYPE_STRING, &property,
1593 DBUS_TYPE_INVALID)) {
1594 log_error("Could not append arguments to message.");
1595 r = -ENOMEM;
1596 goto finish;
1597 }
1598
1599 dbus_message_unref(reply);
1600 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1601 if (!reply) {
1602 log_error("Failed to issue method call: %s", bus_error_message(&error));
1603 r = -EIO;
1604 goto finish;
1605 }
1606
1607 if (!dbus_message_iter_init(reply, &iter) ||
1608 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1609 log_error("Failed to parse reply.");
1610 r = -EIO;
1611 goto finish;
1612 }
1613
1614 dbus_message_iter_recurse(&iter, &sub);
1615
1616 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1617 log_error("Failed to parse reply.");
1618 r = -EIO;
1619 goto finish;
1620 }
1621
1622 dbus_message_iter_get_basic(&sub, &state);
1623
1624 if (!quiet)
1625 puts(state);
1626
1627 if (streq(state, "active") || streq(state, "reloading"))
1628 r = 0;
1629
1630 finish:
1631 if (m)
1632 dbus_message_unref(m);
1633
1634 if (reply)
1635 dbus_message_unref(reply);
1636
1637 dbus_error_free(&error);
1638
1639 return r;
1640 }
1641
1642 static void check_triggering_units(
1643 DBusConnection *bus,
1644 const char *unit_name) {
1645
1646 DBusError error;
1647 DBusMessage *m = NULL, *reply = NULL;
1648 DBusMessageIter iter, sub;
1649 char *service_trigger = NULL;
1650 const char *interface = "org.freedesktop.systemd1.Unit",
1651 *triggered_by_property = "TriggeredBy";
1652
1653 char *unit_path = NULL, *n = NULL;
1654 bool print_warning_label = true;
1655
1656 dbus_error_init(&error);
1657
1658 n = unit_name_mangle(unit_name);
1659 unit_path = unit_dbus_path_from_name(n ? n : unit_name);
1660 free(n);
1661 if (!unit_path) {
1662 log_error("Could not allocate dbus path.");
1663 goto finish;
1664 }
1665
1666 m = dbus_message_new_method_call("org.freedesktop.systemd1",
1667 unit_path,
1668 "org.freedesktop.DBus.Properties",
1669 "Get");
1670 if (!m) {
1671 log_error("Could not allocate message.");
1672 goto finish;
1673 }
1674
1675 if (!dbus_message_append_args(m,
1676 DBUS_TYPE_STRING, &interface,
1677 DBUS_TYPE_STRING, &triggered_by_property,
1678 DBUS_TYPE_INVALID)) {
1679 log_error("Could not append arguments to message.");
1680 goto finish;
1681 }
1682
1683 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1684 if (!reply) {
1685 log_error("Failed to issue method call: %s", bus_error_message(&error));
1686 goto finish;
1687 }
1688
1689 if (!dbus_message_iter_init(reply, &iter) ||
1690 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1691 log_error("Failed to parse reply: %s", bus_error_message(&error));
1692 goto finish;
1693
1694 }
1695
1696 dbus_message_iter_recurse(&iter, &sub);
1697 dbus_message_iter_recurse(&sub, &iter);
1698 sub = iter;
1699
1700 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1701 int r;
1702
1703 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1704 log_error("Failed to parse reply: %s", bus_error_message(&error));
1705 goto finish;
1706 }
1707
1708 dbus_message_iter_get_basic(&sub, &service_trigger);
1709
1710 r = check_one_unit(bus, service_trigger, true);
1711 if (r < 0)
1712 goto finish;
1713 if (r == 0) {
1714 if (print_warning_label) {
1715 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1716 print_warning_label = false;
1717 }
1718 log_warning(" %s", service_trigger);
1719 }
1720
1721 dbus_message_iter_next(&sub);
1722 }
1723 finish:
1724 if (m)
1725 dbus_message_unref(m);
1726
1727 if (reply)
1728 dbus_message_unref(reply);
1729
1730 dbus_error_free(&error);
1731
1732 free(unit_path);
1733 }
1734
1735 static int start_unit_one(
1736 DBusConnection *bus,
1737 const char *method,
1738 const char *name,
1739 const char *mode,
1740 DBusError *error,
1741 Set *s) {
1742
1743 DBusMessage *m = NULL, *reply = NULL;
1744 const char *path;
1745 int r;
1746 char *n;
1747 bool b;
1748
1749 assert(bus);
1750 assert(method);
1751 assert(name);
1752 assert(mode);
1753 assert(error);
1754 assert(arg_no_block || s);
1755
1756 m = dbus_message_new_method_call(
1757 "org.freedesktop.systemd1",
1758 "/org/freedesktop/systemd1",
1759 "org.freedesktop.systemd1.Manager",
1760 method);
1761 if (!m) {
1762 log_error("Could not allocate message.");
1763 r = -ENOMEM;
1764 goto finish;
1765 }
1766
1767 n = unit_name_mangle(name);
1768 b = dbus_message_append_args(m,
1769 DBUS_TYPE_STRING, n ? (const char **) &n : &name,
1770 DBUS_TYPE_STRING, &mode,
1771 DBUS_TYPE_INVALID);
1772 free(n);
1773 if (!b) {
1774 log_error("Could not append arguments to message.");
1775 r = -ENOMEM;
1776 goto finish;
1777 }
1778
1779 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
1780 if (!reply) {
1781
1782 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1783 /* There's always a fallback possible for
1784 * legacy actions. */
1785 r = -EADDRNOTAVAIL;
1786 goto finish;
1787 }
1788
1789 log_error("Failed to issue method call: %s", bus_error_message(error));
1790 r = -EIO;
1791 goto finish;
1792 }
1793
1794 if (!dbus_message_get_args(reply, error,
1795 DBUS_TYPE_OBJECT_PATH, &path,
1796 DBUS_TYPE_INVALID)) {
1797 log_error("Failed to parse reply: %s", bus_error_message(error));
1798 r = -EIO;
1799 goto finish;
1800 }
1801
1802 if (need_daemon_reload(bus, name))
1803 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1804 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1805
1806 if (!arg_no_block) {
1807 char *p;
1808
1809 if (!(p = strdup(path))) {
1810 log_error("Failed to duplicate path.");
1811 r = -ENOMEM;
1812 goto finish;
1813 }
1814
1815 if ((r = set_put(s, p)) < 0) {
1816 free(p);
1817 log_error("Failed to add path to set.");
1818 goto finish;
1819 }
1820 }
1821
1822 /* When stopping a unit warn if it can still be triggered by
1823 * another active unit (socket, path, timer) */
1824 if (!arg_quiet && streq(method, "StopUnit"))
1825 check_triggering_units(bus, name);
1826
1827 r = 0;
1828
1829 finish:
1830 if (m)
1831 dbus_message_unref(m);
1832
1833 if (reply)
1834 dbus_message_unref(reply);
1835
1836 return r;
1837 }
1838
1839 static enum action verb_to_action(const char *verb) {
1840 if (streq(verb, "halt"))
1841 return ACTION_HALT;
1842 else if (streq(verb, "poweroff"))
1843 return ACTION_POWEROFF;
1844 else if (streq(verb, "reboot"))
1845 return ACTION_REBOOT;
1846 else if (streq(verb, "kexec"))
1847 return ACTION_KEXEC;
1848 else if (streq(verb, "rescue"))
1849 return ACTION_RESCUE;
1850 else if (streq(verb, "emergency"))
1851 return ACTION_EMERGENCY;
1852 else if (streq(verb, "default"))
1853 return ACTION_DEFAULT;
1854 else if (streq(verb, "exit"))
1855 return ACTION_EXIT;
1856 else if (streq(verb, "suspend"))
1857 return ACTION_SUSPEND;
1858 else if (streq(verb, "hibernate"))
1859 return ACTION_HIBERNATE;
1860 else
1861 return ACTION_INVALID;
1862 }
1863
1864 static int start_unit(DBusConnection *bus, char **args) {
1865
1866 static const char * const table[_ACTION_MAX] = {
1867 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1868 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1869 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1870 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1871 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1872 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1873 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1874 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1875 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1876 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1877 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1878 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1879 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1880 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET
1881 };
1882
1883 int r, ret = 0;
1884 const char *method, *mode, *one_name;
1885 Set *s = NULL;
1886 DBusError error;
1887 char **name;
1888
1889 dbus_error_init(&error);
1890
1891 assert(bus);
1892
1893 ask_password_agent_open_if_enabled();
1894
1895 if (arg_action == ACTION_SYSTEMCTL) {
1896 method =
1897 streq(args[0], "stop") ||
1898 streq(args[0], "condstop") ? "StopUnit" :
1899 streq(args[0], "reload") ? "ReloadUnit" :
1900 streq(args[0], "restart") ? "RestartUnit" :
1901
1902 streq(args[0], "try-restart") ||
1903 streq(args[0], "condrestart") ? "TryRestartUnit" :
1904
1905 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1906
1907 streq(args[0], "reload-or-try-restart") ||
1908 streq(args[0], "condreload") ||
1909
1910 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1911 "StartUnit";
1912
1913 mode =
1914 (streq(args[0], "isolate") ||
1915 streq(args[0], "rescue") ||
1916 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1917
1918 one_name = table[verb_to_action(args[0])];
1919
1920 } else {
1921 assert(arg_action < ELEMENTSOF(table));
1922 assert(table[arg_action]);
1923
1924 method = "StartUnit";
1925
1926 mode = (arg_action == ACTION_EMERGENCY ||
1927 arg_action == ACTION_RESCUE ||
1928 arg_action == ACTION_RUNLEVEL2 ||
1929 arg_action == ACTION_RUNLEVEL3 ||
1930 arg_action == ACTION_RUNLEVEL4 ||
1931 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1932
1933 one_name = table[arg_action];
1934 }
1935
1936 if (!arg_no_block) {
1937 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1938 log_error("Could not watch jobs: %s", strerror(-ret));
1939 goto finish;
1940 }
1941
1942 if (!(s = set_new(string_hash_func, string_compare_func))) {
1943 log_error("Failed to allocate set.");
1944 ret = -ENOMEM;
1945 goto finish;
1946 }
1947 }
1948
1949 if (one_name) {
1950 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1951 goto finish;
1952 } else {
1953 STRV_FOREACH(name, args+1)
1954 if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1955 ret = translate_bus_error_to_exit_status(r, &error);
1956 dbus_error_free(&error);
1957 }
1958 }
1959
1960 if (!arg_no_block)
1961 if ((r = wait_for_jobs(bus, s)) < 0) {
1962 ret = r;
1963 goto finish;
1964 }
1965
1966 finish:
1967 if (s)
1968 set_free_free(s);
1969
1970 dbus_error_free(&error);
1971
1972 return ret;
1973 }
1974
1975 /* Ask systemd-logind, which might grant access to unprivileged users
1976 * through PolicyKit */
1977 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1978 #ifdef HAVE_LOGIND
1979 const char *method;
1980 DBusMessage *m = NULL, *reply = NULL;
1981 DBusError error;
1982 dbus_bool_t interactive = true;
1983 int r;
1984
1985 dbus_error_init(&error);
1986
1987 polkit_agent_open_if_enabled();
1988
1989 switch (a) {
1990
1991 case ACTION_REBOOT:
1992 method = "Reboot";
1993 break;
1994
1995 case ACTION_POWEROFF:
1996 method = "PowerOff";
1997 break;
1998
1999 case ACTION_SUSPEND:
2000 method = "Suspend";
2001 break;
2002
2003 case ACTION_HIBERNATE:
2004 method = "Hibernate";
2005 break;
2006
2007 default:
2008 return -EINVAL;
2009 }
2010
2011 m = dbus_message_new_method_call(
2012 "org.freedesktop.login1",
2013 "/org/freedesktop/login1",
2014 "org.freedesktop.login1.Manager",
2015 method);
2016 if (!m) {
2017 log_error("Could not allocate message.");
2018 r = -ENOMEM;
2019 goto finish;
2020 }
2021
2022 if (!dbus_message_append_args(m,
2023 DBUS_TYPE_BOOLEAN, &interactive,
2024 DBUS_TYPE_INVALID)) {
2025 log_error("Could not append arguments to message.");
2026 r = -ENOMEM;
2027 goto finish;
2028 }
2029
2030 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2031 if (!reply) {
2032 if (error_is_no_service(&error)) {
2033 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2034 r = -ENOENT;
2035 goto finish;
2036 }
2037
2038 if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2039 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2040 r = -EACCES;
2041 goto finish;
2042 }
2043
2044 log_info("Failed to issue method call: %s", bus_error_message(&error));
2045 r = -EIO;
2046 goto finish;
2047 }
2048
2049 r = 0;
2050
2051 finish:
2052 if (m)
2053 dbus_message_unref(m);
2054
2055 if (reply)
2056 dbus_message_unref(reply);
2057
2058 dbus_error_free(&error);
2059
2060 return r;
2061 #else
2062 return -ENOSYS;
2063 #endif
2064 }
2065
2066 static int start_special(DBusConnection *bus, char **args) {
2067 enum action a;
2068 int r;
2069
2070 assert(args);
2071
2072 a = verb_to_action(args[0]);
2073
2074 if (arg_force >= 2 && geteuid() != 0) {
2075 log_error("Must be root.");
2076 return -EPERM;
2077 }
2078
2079 if (arg_force >= 2 &&
2080 (a == ACTION_HALT ||
2081 a == ACTION_POWEROFF ||
2082 a == ACTION_REBOOT))
2083 halt_now(a);
2084
2085 if (arg_force >= 1 &&
2086 (a == ACTION_HALT ||
2087 a == ACTION_POWEROFF ||
2088 a == ACTION_REBOOT ||
2089 a == ACTION_KEXEC ||
2090 a == ACTION_EXIT))
2091 return daemon_reload(bus, args);
2092
2093 /* first try logind, to allow authentication with polkit */
2094 if (geteuid() != 0 &&
2095 (a == ACTION_POWEROFF ||
2096 a == ACTION_REBOOT ||
2097 a == ACTION_SUSPEND ||
2098 a == ACTION_HIBERNATE)) {
2099 r = reboot_with_logind(bus, a);
2100 if (r >= 0)
2101 return r;
2102 }
2103
2104 r = start_unit(bus, args);
2105 if (r >= 0)
2106 warn_wall(a);
2107
2108 return r;
2109 }
2110
2111 static int check_unit(DBusConnection *bus, char **args) {
2112 char **name;
2113 int r = 3; /* According to LSB: "program is not running" */
2114
2115 assert(bus);
2116 assert(args);
2117
2118 STRV_FOREACH(name, args+1) {
2119 int state = check_one_unit(bus, *name, arg_quiet);
2120 if (state < 0)
2121 return state;
2122 if (state == 0)
2123 r = 0;
2124 }
2125
2126 return r;
2127 }
2128
2129 static int kill_unit(DBusConnection *bus, char **args) {
2130 DBusMessage *m = NULL;
2131 int r = 0;
2132 DBusError error;
2133 char **name;
2134
2135 assert(bus);
2136 assert(args);
2137
2138 dbus_error_init(&error);
2139
2140 if (!arg_kill_who)
2141 arg_kill_who = "all";
2142
2143 if (!arg_kill_mode)
2144 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
2145
2146 STRV_FOREACH(name, args+1) {
2147 DBusMessage *reply;
2148 char *n;
2149 bool b;
2150
2151 m = dbus_message_new_method_call(
2152 "org.freedesktop.systemd1",
2153 "/org/freedesktop/systemd1",
2154 "org.freedesktop.systemd1.Manager",
2155 "KillUnit");
2156 if (!m) {
2157 log_error("Could not allocate message.");
2158 r = -ENOMEM;
2159 goto finish;
2160 }
2161
2162 n = unit_name_mangle(*name);
2163 b = dbus_message_append_args(m,
2164 DBUS_TYPE_STRING, n ? &n : name,
2165 DBUS_TYPE_STRING, &arg_kill_who,
2166 DBUS_TYPE_STRING, &arg_kill_mode,
2167 DBUS_TYPE_INT32, &arg_signal,
2168 DBUS_TYPE_INVALID);
2169 free(n);
2170 if (!b) {
2171 log_error("Could not append arguments to message.");
2172 r = -ENOMEM;
2173 goto finish;
2174 }
2175
2176 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2177 if (!reply) {
2178 log_error("Failed to issue method call: %s", bus_error_message(&error));
2179 dbus_error_free(&error);
2180 r = -EIO;
2181 }
2182
2183 dbus_message_unref(m);
2184
2185 if (reply)
2186 dbus_message_unref(reply);
2187 m = reply = NULL;
2188 }
2189
2190 finish:
2191 if (m)
2192 dbus_message_unref(m);
2193
2194 dbus_error_free(&error);
2195
2196 return r;
2197 }
2198
2199 typedef struct ExecStatusInfo {
2200 char *name;
2201
2202 char *path;
2203 char **argv;
2204
2205 bool ignore;
2206
2207 usec_t start_timestamp;
2208 usec_t exit_timestamp;
2209 pid_t pid;
2210 int code;
2211 int status;
2212
2213 LIST_FIELDS(struct ExecStatusInfo, exec);
2214 } ExecStatusInfo;
2215
2216 static void exec_status_info_free(ExecStatusInfo *i) {
2217 assert(i);
2218
2219 free(i->name);
2220 free(i->path);
2221 strv_free(i->argv);
2222 free(i);
2223 }
2224
2225 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2226 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2227 DBusMessageIter sub2, sub3;
2228 const char*path;
2229 unsigned n;
2230 uint32_t pid;
2231 int32_t code, status;
2232 dbus_bool_t ignore;
2233
2234 assert(i);
2235 assert(i);
2236
2237 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2238 return -EIO;
2239
2240 dbus_message_iter_recurse(sub, &sub2);
2241
2242 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2243 return -EIO;
2244
2245 if (!(i->path = strdup(path)))
2246 return -ENOMEM;
2247
2248 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2249 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2250 return -EIO;
2251
2252 n = 0;
2253 dbus_message_iter_recurse(&sub2, &sub3);
2254 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2255 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2256 dbus_message_iter_next(&sub3);
2257 n++;
2258 }
2259
2260
2261 if (!(i->argv = new0(char*, n+1)))
2262 return -ENOMEM;
2263
2264 n = 0;
2265 dbus_message_iter_recurse(&sub2, &sub3);
2266 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2267 const char *s;
2268
2269 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2270 dbus_message_iter_get_basic(&sub3, &s);
2271 dbus_message_iter_next(&sub3);
2272
2273 if (!(i->argv[n++] = strdup(s)))
2274 return -ENOMEM;
2275 }
2276
2277 if (!dbus_message_iter_next(&sub2) ||
2278 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2279 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2280 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2281 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2282 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2283 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2284 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2285 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2286 return -EIO;
2287
2288 i->ignore = ignore;
2289 i->start_timestamp = (usec_t) start_timestamp;
2290 i->exit_timestamp = (usec_t) exit_timestamp;
2291 i->pid = (pid_t) pid;
2292 i->code = code;
2293 i->status = status;
2294
2295 return 0;
2296 }
2297
2298 typedef struct UnitStatusInfo {
2299 const char *id;
2300 const char *load_state;
2301 const char *active_state;
2302 const char *sub_state;
2303 const char *unit_file_state;
2304
2305 const char *description;
2306 const char *following;
2307
2308 char **documentation;
2309
2310 const char *fragment_path;
2311 const char *source_path;
2312 const char *default_control_group;
2313
2314 const char *load_error;
2315 const char *result;
2316
2317 usec_t inactive_exit_timestamp;
2318 usec_t inactive_exit_timestamp_monotonic;
2319 usec_t active_enter_timestamp;
2320 usec_t active_exit_timestamp;
2321 usec_t inactive_enter_timestamp;
2322
2323 bool need_daemon_reload;
2324
2325 /* Service */
2326 pid_t main_pid;
2327 pid_t control_pid;
2328 const char *status_text;
2329 bool running:1;
2330
2331 usec_t start_timestamp;
2332 usec_t exit_timestamp;
2333
2334 int exit_code, exit_status;
2335
2336 usec_t condition_timestamp;
2337 bool condition_result;
2338
2339 /* Socket */
2340 unsigned n_accepted;
2341 unsigned n_connections;
2342 bool accept;
2343
2344 /* Device */
2345 const char *sysfs_path;
2346
2347 /* Mount, Automount */
2348 const char *where;
2349
2350 /* Swap */
2351 const char *what;
2352
2353 LIST_HEAD(ExecStatusInfo, exec);
2354 } UnitStatusInfo;
2355
2356 static void print_status_info(UnitStatusInfo *i) {
2357 ExecStatusInfo *p;
2358 const char *on, *off, *ss;
2359 usec_t timestamp;
2360 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2361 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2362 const char *path;
2363
2364 assert(i);
2365
2366 /* This shows pretty information about a unit. See
2367 * print_property() for a low-level property printer */
2368
2369 printf("%s", strna(i->id));
2370
2371 if (i->description && !streq_ptr(i->id, i->description))
2372 printf(" - %s", i->description);
2373
2374 printf("\n");
2375
2376 if (i->following)
2377 printf("\t Follow: unit currently follows state of %s\n", i->following);
2378
2379 if (streq_ptr(i->load_state, "error")) {
2380 on = ansi_highlight_red(true);
2381 off = ansi_highlight_red(false);
2382 } else
2383 on = off = "";
2384
2385 path = i->source_path ? i->source_path : i->fragment_path;
2386
2387 if (i->load_error)
2388 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2389 else if (path && i->unit_file_state)
2390 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2391 else if (path)
2392 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2393 else
2394 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2395
2396 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2397
2398 if (streq_ptr(i->active_state, "failed")) {
2399 on = ansi_highlight_red(true);
2400 off = ansi_highlight_red(false);
2401 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2402 on = ansi_highlight_green(true);
2403 off = ansi_highlight_green(false);
2404 } else
2405 on = off = "";
2406
2407 if (ss)
2408 printf("\t Active: %s%s (%s)%s",
2409 on,
2410 strna(i->active_state),
2411 ss,
2412 off);
2413 else
2414 printf("\t Active: %s%s%s",
2415 on,
2416 strna(i->active_state),
2417 off);
2418
2419 if (!isempty(i->result) && !streq(i->result, "success"))
2420 printf(" (Result: %s)", i->result);
2421
2422 timestamp = (streq_ptr(i->active_state, "active") ||
2423 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2424 (streq_ptr(i->active_state, "inactive") ||
2425 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2426 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2427 i->active_exit_timestamp;
2428
2429 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2430 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2431
2432 if (s1)
2433 printf(" since %s; %s\n", s2, s1);
2434 else if (s2)
2435 printf(" since %s\n", s2);
2436 else
2437 printf("\n");
2438
2439 if (!i->condition_result && i->condition_timestamp > 0) {
2440 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2441 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2442
2443 if (s1)
2444 printf("\t start condition failed at %s; %s\n", s2, s1);
2445 else if (s2)
2446 printf("\t start condition failed at %s\n", s2);
2447 }
2448
2449 if (i->sysfs_path)
2450 printf("\t Device: %s\n", i->sysfs_path);
2451 if (i->where)
2452 printf("\t Where: %s\n", i->where);
2453 if (i->what)
2454 printf("\t What: %s\n", i->what);
2455
2456 if (!strv_isempty(i->documentation)) {
2457 char **t;
2458 bool first = true;
2459
2460 STRV_FOREACH(t, i->documentation) {
2461 if (first) {
2462 printf("\t Docs: %s\n", *t);
2463 first = false;
2464 } else
2465 printf("\t %s\n", *t);
2466 }
2467 }
2468
2469 if (i->accept)
2470 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2471
2472 LIST_FOREACH(exec, p, i->exec) {
2473 char *t;
2474 bool good;
2475
2476 /* Only show exited processes here */
2477 if (p->code == 0)
2478 continue;
2479
2480 t = strv_join(p->argv, " ");
2481 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2482 free(t);
2483
2484 good = is_clean_exit_lsb(p->code, p->status);
2485 if (!good) {
2486 on = ansi_highlight_red(true);
2487 off = ansi_highlight_red(false);
2488 } else
2489 on = off = "";
2490
2491 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2492
2493 if (p->code == CLD_EXITED) {
2494 const char *c;
2495
2496 printf("status=%i", p->status);
2497
2498 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2499 if (c)
2500 printf("/%s", c);
2501
2502 } else
2503 printf("signal=%s", signal_to_string(p->status));
2504
2505 printf(")%s\n", off);
2506
2507 if (i->main_pid == p->pid &&
2508 i->start_timestamp == p->start_timestamp &&
2509 i->exit_timestamp == p->start_timestamp)
2510 /* Let's not show this twice */
2511 i->main_pid = 0;
2512
2513 if (p->pid == i->control_pid)
2514 i->control_pid = 0;
2515 }
2516
2517 if (i->main_pid > 0 || i->control_pid > 0) {
2518 printf("\t");
2519
2520 if (i->main_pid > 0) {
2521 printf("Main PID: %u", (unsigned) i->main_pid);
2522
2523 if (i->running) {
2524 char *t = NULL;
2525 get_process_comm(i->main_pid, &t);
2526 if (t) {
2527 printf(" (%s)", t);
2528 free(t);
2529 }
2530 } else if (i->exit_code > 0) {
2531 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2532
2533 if (i->exit_code == CLD_EXITED) {
2534 const char *c;
2535
2536 printf("status=%i", i->exit_status);
2537
2538 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2539 if (c)
2540 printf("/%s", c);
2541
2542 } else
2543 printf("signal=%s", signal_to_string(i->exit_status));
2544 printf(")");
2545 }
2546 }
2547
2548 if (i->main_pid > 0 && i->control_pid > 0)
2549 printf(";");
2550
2551 if (i->control_pid > 0) {
2552 char *t = NULL;
2553
2554 printf(" Control: %u", (unsigned) i->control_pid);
2555
2556 get_process_comm(i->control_pid, &t);
2557 if (t) {
2558 printf(" (%s)", t);
2559 free(t);
2560 }
2561 }
2562
2563 printf("\n");
2564 }
2565
2566 if (i->status_text)
2567 printf("\t Status: \"%s\"\n", i->status_text);
2568
2569 if (i->default_control_group) {
2570 unsigned c;
2571
2572 printf("\t CGroup: %s\n", i->default_control_group);
2573
2574 if (arg_transport != TRANSPORT_SSH) {
2575 unsigned k = 0;
2576 pid_t extra[2];
2577
2578 c = columns();
2579 if (c > 18)
2580 c -= 18;
2581 else
2582 c = 0;
2583
2584 if (i->main_pid > 0)
2585 extra[k++] = i->main_pid;
2586
2587 if (i->control_pid > 0)
2588 extra[k++] = i->control_pid;
2589
2590 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
2591 }
2592 }
2593
2594 if (i->id && arg_transport != TRANSPORT_SSH) {
2595 printf("\n");
2596 show_journal_by_unit(i->id, arg_output, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow, !arg_quiet);
2597 }
2598
2599 if (i->need_daemon_reload)
2600 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2601 ansi_highlight_red(true),
2602 ansi_highlight_red(false),
2603 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2604 }
2605
2606 static void show_unit_help(UnitStatusInfo *i) {
2607 char **p;
2608
2609 assert(i);
2610
2611 if (!i->documentation) {
2612 log_info("Documentation for %s not known.", i->id);
2613 return;
2614 }
2615
2616 STRV_FOREACH(p, i->documentation) {
2617
2618 if (startswith(*p, "man:")) {
2619 size_t k;
2620 char *e = NULL;
2621 char *page = NULL, *section = NULL;
2622 const char *args[4] = { "man", NULL, NULL, NULL };
2623 pid_t pid;
2624
2625 k = strlen(*p);
2626
2627 if ((*p)[k-1] == ')')
2628 e = strrchr(*p, '(');
2629
2630 if (e) {
2631 page = strndup((*p) + 4, e - *p - 4);
2632 if (!page) {
2633 log_error("Out of memory.");
2634 return;
2635 }
2636
2637 section = strndup(e + 1, *p + k - e - 2);
2638 if (!section) {
2639 free(page);
2640 log_error("Out of memory");
2641 return;
2642 }
2643
2644 args[1] = section;
2645 args[2] = page;
2646 } else
2647 args[1] = *p + 4;
2648
2649 pid = fork();
2650 if (pid < 0) {
2651 log_error("Failed to fork: %m");
2652 free(page);
2653 free(section);
2654 continue;
2655 }
2656
2657 if (pid == 0) {
2658 /* Child */
2659 execvp(args[0], (char**) args);
2660 log_error("Failed to execute man: %m");
2661 _exit(EXIT_FAILURE);
2662 }
2663
2664 free(page);
2665 free(section);
2666
2667 wait_for_terminate(pid, NULL);
2668 } else
2669 log_info("Can't show: %s", *p);
2670 }
2671 }
2672
2673 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2674
2675 assert(name);
2676 assert(iter);
2677 assert(i);
2678
2679 switch (dbus_message_iter_get_arg_type(iter)) {
2680
2681 case DBUS_TYPE_STRING: {
2682 const char *s;
2683
2684 dbus_message_iter_get_basic(iter, &s);
2685
2686 if (!isempty(s)) {
2687 if (streq(name, "Id"))
2688 i->id = s;
2689 else if (streq(name, "LoadState"))
2690 i->load_state = s;
2691 else if (streq(name, "ActiveState"))
2692 i->active_state = s;
2693 else if (streq(name, "SubState"))
2694 i->sub_state = s;
2695 else if (streq(name, "Description"))
2696 i->description = s;
2697 else if (streq(name, "FragmentPath"))
2698 i->fragment_path = s;
2699 else if (streq(name, "SourcePath"))
2700 i->source_path = s;
2701 else if (streq(name, "DefaultControlGroup"))
2702 i->default_control_group = s;
2703 else if (streq(name, "StatusText"))
2704 i->status_text = s;
2705 else if (streq(name, "SysFSPath"))
2706 i->sysfs_path = s;
2707 else if (streq(name, "Where"))
2708 i->where = s;
2709 else if (streq(name, "What"))
2710 i->what = s;
2711 else if (streq(name, "Following"))
2712 i->following = s;
2713 else if (streq(name, "UnitFileState"))
2714 i->unit_file_state = s;
2715 else if (streq(name, "Result"))
2716 i->result = s;
2717 }
2718
2719 break;
2720 }
2721
2722 case DBUS_TYPE_BOOLEAN: {
2723 dbus_bool_t b;
2724
2725 dbus_message_iter_get_basic(iter, &b);
2726
2727 if (streq(name, "Accept"))
2728 i->accept = b;
2729 else if (streq(name, "NeedDaemonReload"))
2730 i->need_daemon_reload = b;
2731 else if (streq(name, "ConditionResult"))
2732 i->condition_result = b;
2733
2734 break;
2735 }
2736
2737 case DBUS_TYPE_UINT32: {
2738 uint32_t u;
2739
2740 dbus_message_iter_get_basic(iter, &u);
2741
2742 if (streq(name, "MainPID")) {
2743 if (u > 0) {
2744 i->main_pid = (pid_t) u;
2745 i->running = true;
2746 }
2747 } else if (streq(name, "ControlPID"))
2748 i->control_pid = (pid_t) u;
2749 else if (streq(name, "ExecMainPID")) {
2750 if (u > 0)
2751 i->main_pid = (pid_t) u;
2752 } else if (streq(name, "NAccepted"))
2753 i->n_accepted = u;
2754 else if (streq(name, "NConnections"))
2755 i->n_connections = u;
2756
2757 break;
2758 }
2759
2760 case DBUS_TYPE_INT32: {
2761 int32_t j;
2762
2763 dbus_message_iter_get_basic(iter, &j);
2764
2765 if (streq(name, "ExecMainCode"))
2766 i->exit_code = (int) j;
2767 else if (streq(name, "ExecMainStatus"))
2768 i->exit_status = (int) j;
2769
2770 break;
2771 }
2772
2773 case DBUS_TYPE_UINT64: {
2774 uint64_t u;
2775
2776 dbus_message_iter_get_basic(iter, &u);
2777
2778 if (streq(name, "ExecMainStartTimestamp"))
2779 i->start_timestamp = (usec_t) u;
2780 else if (streq(name, "ExecMainExitTimestamp"))
2781 i->exit_timestamp = (usec_t) u;
2782 else if (streq(name, "ActiveEnterTimestamp"))
2783 i->active_enter_timestamp = (usec_t) u;
2784 else if (streq(name, "InactiveEnterTimestamp"))
2785 i->inactive_enter_timestamp = (usec_t) u;
2786 else if (streq(name, "InactiveExitTimestamp"))
2787 i->inactive_exit_timestamp = (usec_t) u;
2788 else if (streq(name, "InactiveExitTimestampMonotonic"))
2789 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2790 else if (streq(name, "ActiveExitTimestamp"))
2791 i->active_exit_timestamp = (usec_t) u;
2792 else if (streq(name, "ConditionTimestamp"))
2793 i->condition_timestamp = (usec_t) u;
2794
2795 break;
2796 }
2797
2798 case DBUS_TYPE_ARRAY: {
2799
2800 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2801 startswith(name, "Exec")) {
2802 DBusMessageIter sub;
2803
2804 dbus_message_iter_recurse(iter, &sub);
2805 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2806 ExecStatusInfo *info;
2807 int r;
2808
2809 if (!(info = new0(ExecStatusInfo, 1)))
2810 return -ENOMEM;
2811
2812 if (!(info->name = strdup(name))) {
2813 free(info);
2814 return -ENOMEM;
2815 }
2816
2817 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2818 free(info);
2819 return r;
2820 }
2821
2822 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2823
2824 dbus_message_iter_next(&sub);
2825 }
2826 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2827 streq(name, "Documentation")) {
2828
2829 DBusMessageIter sub;
2830
2831 dbus_message_iter_recurse(iter, &sub);
2832 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2833 const char *s;
2834 char **l;
2835
2836 dbus_message_iter_get_basic(&sub, &s);
2837
2838 l = strv_append(i->documentation, s);
2839 if (!l)
2840 return -ENOMEM;
2841
2842 strv_free(i->documentation);
2843 i->documentation = l;
2844
2845 dbus_message_iter_next(&sub);
2846 }
2847 }
2848
2849 break;
2850 }
2851
2852 case DBUS_TYPE_STRUCT: {
2853
2854 if (streq(name, "LoadError")) {
2855 DBusMessageIter sub;
2856 const char *n, *message;
2857 int r;
2858
2859 dbus_message_iter_recurse(iter, &sub);
2860
2861 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2862 if (r < 0)
2863 return r;
2864
2865 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2866 if (r < 0)
2867 return r;
2868
2869 if (!isempty(message))
2870 i->load_error = message;
2871 }
2872
2873 break;
2874 }
2875 }
2876
2877 return 0;
2878 }
2879
2880 static int print_property(const char *name, DBusMessageIter *iter) {
2881 assert(name);
2882 assert(iter);
2883
2884 /* This is a low-level property printer, see
2885 * print_status_info() for the nicer output */
2886
2887 if (arg_property && !strv_find(arg_property, name))
2888 return 0;
2889
2890 switch (dbus_message_iter_get_arg_type(iter)) {
2891
2892 case DBUS_TYPE_STRUCT: {
2893 DBusMessageIter sub;
2894 dbus_message_iter_recurse(iter, &sub);
2895
2896 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2897 uint32_t u;
2898
2899 dbus_message_iter_get_basic(&sub, &u);
2900
2901 if (u)
2902 printf("%s=%u\n", name, (unsigned) u);
2903 else if (arg_all)
2904 printf("%s=\n", name);
2905
2906 return 0;
2907 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2908 const char *s;
2909
2910 dbus_message_iter_get_basic(&sub, &s);
2911
2912 if (arg_all || s[0])
2913 printf("%s=%s\n", name, s);
2914
2915 return 0;
2916 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2917 const char *a = NULL, *b = NULL;
2918
2919 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2920 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2921
2922 if (arg_all || !isempty(a) || !isempty(b))
2923 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2924
2925 return 0;
2926 }
2927
2928 break;
2929 }
2930
2931 case DBUS_TYPE_ARRAY:
2932
2933 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2934 DBusMessageIter sub, sub2;
2935
2936 dbus_message_iter_recurse(iter, &sub);
2937 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2938 const char *path;
2939 dbus_bool_t ignore;
2940
2941 dbus_message_iter_recurse(&sub, &sub2);
2942
2943 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2944 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2945 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2946
2947 dbus_message_iter_next(&sub);
2948 }
2949
2950 return 0;
2951
2952 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2953 DBusMessageIter sub, sub2;
2954
2955 dbus_message_iter_recurse(iter, &sub);
2956 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2957 const char *type, *path;
2958
2959 dbus_message_iter_recurse(&sub, &sub2);
2960
2961 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2962 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2963 printf("%s=%s\n", type, path);
2964
2965 dbus_message_iter_next(&sub);
2966 }
2967
2968 return 0;
2969
2970 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2971 DBusMessageIter sub, sub2;
2972
2973 dbus_message_iter_recurse(iter, &sub);
2974 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2975 const char *base;
2976 uint64_t value, next_elapse;
2977
2978 dbus_message_iter_recurse(&sub, &sub2);
2979
2980 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2983 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2984
2985 printf("%s={ value=%s ; next_elapse=%s }\n",
2986 base,
2987 format_timespan(timespan1, sizeof(timespan1), value),
2988 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2989 }
2990
2991 dbus_message_iter_next(&sub);
2992 }
2993
2994 return 0;
2995
2996 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2997 DBusMessageIter sub, sub2;
2998
2999 dbus_message_iter_recurse(iter, &sub);
3000 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3001 const char *controller, *attr, *value;
3002
3003 dbus_message_iter_recurse(&sub, &sub2);
3004
3005 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3006 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3007 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3008
3009 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3010 controller,
3011 attr,
3012 value);
3013 }
3014
3015 dbus_message_iter_next(&sub);
3016 }
3017
3018 return 0;
3019
3020 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3021 DBusMessageIter sub;
3022
3023 dbus_message_iter_recurse(iter, &sub);
3024 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3025 ExecStatusInfo info;
3026
3027 zero(info);
3028 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3029 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3030 char *t;
3031
3032 t = strv_join(info.argv, " ");
3033
3034 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3035 name,
3036 strna(info.path),
3037 strna(t),
3038 yes_no(info.ignore),
3039 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3040 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3041 (unsigned) info. pid,
3042 sigchld_code_to_string(info.code),
3043 info.status,
3044 info.code == CLD_EXITED ? "" : "/",
3045 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3046
3047 free(t);
3048 }
3049
3050 free(info.path);
3051 strv_free(info.argv);
3052
3053 dbus_message_iter_next(&sub);
3054 }
3055
3056 return 0;
3057 }
3058
3059 break;
3060 }
3061
3062 if (generic_print_property(name, iter, arg_all) > 0)
3063 return 0;
3064
3065 if (arg_all)
3066 printf("%s=[unprintable]\n", name);
3067
3068 return 0;
3069 }
3070
3071 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3072 DBusMessage *m = NULL, *reply = NULL;
3073 const char *interface = "";
3074 int r;
3075 DBusError error;
3076 DBusMessageIter iter, sub, sub2, sub3;
3077 UnitStatusInfo info;
3078 ExecStatusInfo *p;
3079
3080 assert(bus);
3081 assert(path);
3082 assert(new_line);
3083
3084 zero(info);
3085 dbus_error_init(&error);
3086
3087 if (!(m = dbus_message_new_method_call(
3088 "org.freedesktop.systemd1",
3089 path,
3090 "org.freedesktop.DBus.Properties",
3091 "GetAll"))) {
3092 log_error("Could not allocate message.");
3093 r = -ENOMEM;
3094 goto finish;
3095 }
3096
3097 if (!dbus_message_append_args(m,
3098 DBUS_TYPE_STRING, &interface,
3099 DBUS_TYPE_INVALID)) {
3100 log_error("Could not append arguments to message.");
3101 r = -ENOMEM;
3102 goto finish;
3103 }
3104
3105 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3106 log_error("Failed to issue method call: %s", bus_error_message(&error));
3107 r = -EIO;
3108 goto finish;
3109 }
3110
3111 if (!dbus_message_iter_init(reply, &iter) ||
3112 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3113 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3114 log_error("Failed to parse reply.");
3115 r = -EIO;
3116 goto finish;
3117 }
3118
3119 dbus_message_iter_recurse(&iter, &sub);
3120
3121 if (*new_line)
3122 printf("\n");
3123
3124 *new_line = true;
3125
3126 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3127 const char *name;
3128
3129 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
3130 log_error("Failed to parse reply.");
3131 r = -EIO;
3132 goto finish;
3133 }
3134
3135 dbus_message_iter_recurse(&sub, &sub2);
3136
3137 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
3138 log_error("Failed to parse reply.");
3139 r = -EIO;
3140 goto finish;
3141 }
3142
3143 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3144 log_error("Failed to parse reply.");
3145 r = -EIO;
3146 goto finish;
3147 }
3148
3149 dbus_message_iter_recurse(&sub2, &sub3);
3150
3151 if (show_properties)
3152 r = print_property(name, &sub3);
3153 else
3154 r = status_property(name, &sub3, &info);
3155
3156 if (r < 0) {
3157 log_error("Failed to parse reply.");
3158 r = -EIO;
3159 goto finish;
3160 }
3161
3162 dbus_message_iter_next(&sub);
3163 }
3164
3165 r = 0;
3166
3167 if (!show_properties) {
3168 if (streq(verb, "help"))
3169 show_unit_help(&info);
3170 else
3171 print_status_info(&info);
3172 }
3173
3174 strv_free(info.documentation);
3175
3176 if (!streq_ptr(info.active_state, "active") &&
3177 !streq_ptr(info.active_state, "reloading") &&
3178 streq(verb, "status"))
3179 /* According to LSB: "program not running" */
3180 r = 3;
3181
3182 while ((p = info.exec)) {
3183 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3184 exec_status_info_free(p);
3185 }
3186
3187 finish:
3188 if (m)
3189 dbus_message_unref(m);
3190
3191 if (reply)
3192 dbus_message_unref(reply);
3193
3194 dbus_error_free(&error);
3195
3196 return r;
3197 }
3198
3199 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3200 DBusMessage *m = NULL, *reply = NULL;
3201 const char *path = NULL;
3202 DBusError error;
3203 int r;
3204
3205 dbus_error_init(&error);
3206
3207 m = dbus_message_new_method_call(
3208 "org.freedesktop.systemd1",
3209 "/org/freedesktop/systemd1",
3210 "org.freedesktop.systemd1.Manager",
3211 "GetUnitByPID");
3212 if (!m) {
3213 log_error("Could not allocate message.");
3214 r = -ENOMEM;
3215 goto finish;
3216 }
3217
3218 if (!dbus_message_append_args(m,
3219 DBUS_TYPE_UINT32, &pid,
3220 DBUS_TYPE_INVALID)) {
3221 log_error("Could not append arguments to message.");
3222 r = -ENOMEM;
3223 goto finish;
3224 }
3225
3226 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3227 if (!reply) {
3228 log_error("Failed to issue method call: %s", bus_error_message(&error));
3229 r = -EIO;
3230 goto finish;
3231 }
3232
3233 if (!dbus_message_get_args(reply, &error,
3234 DBUS_TYPE_OBJECT_PATH, &path,
3235 DBUS_TYPE_INVALID)) {
3236 log_error("Failed to parse reply: %s", bus_error_message(&error));
3237 r = -EIO;
3238 goto finish;
3239 }
3240
3241 r = show_one(verb, bus, path, false, new_line);
3242
3243 finish:
3244 if (m)
3245 dbus_message_unref(m);
3246
3247 if (reply)
3248 dbus_message_unref(reply);
3249
3250 dbus_error_free(&error);
3251
3252 return r;
3253 }
3254
3255 static int show(DBusConnection *bus, char **args) {
3256 int r, ret = 0;
3257 bool show_properties, new_line = false;
3258 char **name;
3259
3260 assert(bus);
3261 assert(args);
3262
3263 show_properties = streq(args[0], "show");
3264
3265 if (show_properties)
3266 pager_open_if_enabled();
3267
3268 if (show_properties && strv_length(args) <= 1) {
3269 /* If not argument is specified inspect the manager
3270 * itself */
3271
3272 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3273 }
3274
3275 STRV_FOREACH(name, args+1) {
3276 uint32_t id;
3277
3278 if (safe_atou32(*name, &id) < 0) {
3279 char *p, *n;
3280 /* Interpret as unit name */
3281
3282 n = unit_name_mangle(*name);
3283 p = unit_dbus_path_from_name(n ? n : *name);
3284 free(n);
3285 if (!p) {
3286 log_error("Out of memory");
3287 return -ENOMEM;
3288 }
3289
3290 r = show_one(args[0], bus, p, show_properties, &new_line);
3291 free(p);
3292
3293 if (r != 0)
3294 ret = r;
3295
3296 } else if (show_properties) {
3297
3298 /* Interpret as job id */
3299
3300 char *p;
3301 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0) {
3302 log_error("Out of memory");
3303 return -ENOMEM;
3304 }
3305
3306 r = show_one(args[0], bus, p, show_properties, &new_line);
3307 free(p);
3308
3309 if (r != 0)
3310 ret = r;
3311
3312 } else {
3313
3314 /* Interpret as PID */
3315
3316 r = show_one_by_pid(args[0], bus, id, &new_line);
3317 if (r != 0)
3318 ret = r;
3319 }
3320 }
3321
3322 return ret;
3323 }
3324
3325 static int dump(DBusConnection *bus, char **args) {
3326 DBusMessage *m = NULL, *reply = NULL;
3327 DBusError error;
3328 int r;
3329 const char *text;
3330
3331 dbus_error_init(&error);
3332
3333 pager_open_if_enabled();
3334
3335 if (!(m = dbus_message_new_method_call(
3336 "org.freedesktop.systemd1",
3337 "/org/freedesktop/systemd1",
3338 "org.freedesktop.systemd1.Manager",
3339 "Dump"))) {
3340 log_error("Could not allocate message.");
3341 return -ENOMEM;
3342 }
3343
3344 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3345 log_error("Failed to issue method call: %s", bus_error_message(&error));
3346 r = -EIO;
3347 goto finish;
3348 }
3349
3350 if (!dbus_message_get_args(reply, &error,
3351 DBUS_TYPE_STRING, &text,
3352 DBUS_TYPE_INVALID)) {
3353 log_error("Failed to parse reply: %s", bus_error_message(&error));
3354 r = -EIO;
3355 goto finish;
3356 }
3357
3358 fputs(text, stdout);
3359
3360 r = 0;
3361
3362 finish:
3363 if (m)
3364 dbus_message_unref(m);
3365
3366 if (reply)
3367 dbus_message_unref(reply);
3368
3369 dbus_error_free(&error);
3370
3371 return r;
3372 }
3373
3374 static int snapshot(DBusConnection *bus, char **args) {
3375 DBusMessage *m = NULL, *reply = NULL;
3376 DBusError error;
3377 int r;
3378 const char *name = "", *path, *id;
3379 dbus_bool_t cleanup = FALSE;
3380 DBusMessageIter iter, sub;
3381 const char
3382 *interface = "org.freedesktop.systemd1.Unit",
3383 *property = "Id";
3384 char *n;
3385 bool b;
3386
3387 dbus_error_init(&error);
3388
3389 m = dbus_message_new_method_call(
3390 "org.freedesktop.systemd1",
3391 "/org/freedesktop/systemd1",
3392 "org.freedesktop.systemd1.Manager",
3393 "CreateSnapshot");
3394 if (!m) {
3395 log_error("Could not allocate message.");
3396 return -ENOMEM;
3397 }
3398
3399 if (strv_length(args) > 1)
3400 name = args[1];
3401
3402 n = unit_name_mangle(name);
3403 b = dbus_message_append_args(m,
3404 DBUS_TYPE_STRING, n ? (const char**) &n : &name,
3405 DBUS_TYPE_BOOLEAN, &cleanup,
3406 DBUS_TYPE_INVALID);
3407 free(n);
3408 if (!b) {
3409 log_error("Could not append arguments to message.");
3410 r = -ENOMEM;
3411 goto finish;
3412 }
3413
3414 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3415 if (!reply) {
3416 log_error("Failed to issue method call: %s", bus_error_message(&error));
3417 r = -EIO;
3418 goto finish;
3419 }
3420
3421 if (!dbus_message_get_args(reply, &error,
3422 DBUS_TYPE_OBJECT_PATH, &path,
3423 DBUS_TYPE_INVALID)) {
3424 log_error("Failed to parse reply: %s", bus_error_message(&error));
3425 r = -EIO;
3426 goto finish;
3427 }
3428
3429 dbus_message_unref(m);
3430 m = dbus_message_new_method_call(
3431 "org.freedesktop.systemd1",
3432 path,
3433 "org.freedesktop.DBus.Properties",
3434 "Get");
3435 if (!m) {
3436 log_error("Could not allocate message.");
3437 return -ENOMEM;
3438 }
3439
3440 if (!dbus_message_append_args(m,
3441 DBUS_TYPE_STRING, &interface,
3442 DBUS_TYPE_STRING, &property,
3443 DBUS_TYPE_INVALID)) {
3444 log_error("Could not append arguments to message.");
3445 r = -ENOMEM;
3446 goto finish;
3447 }
3448
3449 dbus_message_unref(reply);
3450 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3451 if (!reply) {
3452 log_error("Failed to issue method call: %s", bus_error_message(&error));
3453 r = -EIO;
3454 goto finish;
3455 }
3456
3457 if (!dbus_message_iter_init(reply, &iter) ||
3458 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3459 log_error("Failed to parse reply.");
3460 r = -EIO;
3461 goto finish;
3462 }
3463
3464 dbus_message_iter_recurse(&iter, &sub);
3465
3466 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3467 log_error("Failed to parse reply.");
3468 r = -EIO;
3469 goto finish;
3470 }
3471
3472 dbus_message_iter_get_basic(&sub, &id);
3473
3474 if (!arg_quiet)
3475 puts(id);
3476 r = 0;
3477
3478 finish:
3479 if (m)
3480 dbus_message_unref(m);
3481
3482 if (reply)
3483 dbus_message_unref(reply);
3484
3485 dbus_error_free(&error);
3486
3487 return r;
3488 }
3489
3490 static int delete_snapshot(DBusConnection *bus, char **args) {
3491 DBusMessage *m = NULL, *reply = NULL;
3492 int r;
3493 DBusError error;
3494 char **name;
3495
3496 assert(bus);
3497 assert(args);
3498
3499 dbus_error_init(&error);
3500
3501 STRV_FOREACH(name, args+1) {
3502 const char *path = NULL;
3503 char *n;
3504 bool b;
3505
3506 m = dbus_message_new_method_call(
3507 "org.freedesktop.systemd1",
3508 "/org/freedesktop/systemd1",
3509 "org.freedesktop.systemd1.Manager",
3510 "GetUnit");
3511 if (!m) {
3512 log_error("Could not allocate message.");
3513 r = -ENOMEM;
3514 goto finish;
3515 }
3516
3517 n = unit_name_mangle(*name);
3518 b = dbus_message_append_args(m,
3519 DBUS_TYPE_STRING, n ? &n : name,
3520 DBUS_TYPE_INVALID);
3521 free(n);
3522 if (!b) {
3523 log_error("Could not append arguments to message.");
3524 r = -ENOMEM;
3525 goto finish;
3526 }
3527
3528 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3529 if (!reply) {
3530 log_error("Failed to issue method call: %s", bus_error_message(&error));
3531 r = -EIO;
3532 goto finish;
3533 }
3534
3535 if (!dbus_message_get_args(reply, &error,
3536 DBUS_TYPE_OBJECT_PATH, &path,
3537 DBUS_TYPE_INVALID)) {
3538 log_error("Failed to parse reply: %s", bus_error_message(&error));
3539 r = -EIO;
3540 goto finish;
3541 }
3542
3543 dbus_message_unref(m);
3544 m = dbus_message_new_method_call(
3545 "org.freedesktop.systemd1",
3546 path,
3547 "org.freedesktop.systemd1.Snapshot",
3548 "Remove");
3549 if (!m) {
3550 log_error("Could not allocate message.");
3551 r = -ENOMEM;
3552 goto finish;
3553 }
3554
3555 dbus_message_unref(reply);
3556 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3557 if (!reply) {
3558 log_error("Failed to issue method call: %s", bus_error_message(&error));
3559 r = -EIO;
3560 goto finish;
3561 }
3562
3563 dbus_message_unref(m);
3564 dbus_message_unref(reply);
3565 m = reply = NULL;
3566 }
3567
3568 r = 0;
3569
3570 finish:
3571 if (m)
3572 dbus_message_unref(m);
3573
3574 if (reply)
3575 dbus_message_unref(reply);
3576
3577 dbus_error_free(&error);
3578
3579 return r;
3580 }
3581
3582 static int daemon_reload(DBusConnection *bus, char **args) {
3583 DBusMessage *m = NULL, *reply = NULL;
3584 DBusError error;
3585 int r;
3586 const char *method;
3587
3588 dbus_error_init(&error);
3589
3590 if (arg_action == ACTION_RELOAD)
3591 method = "Reload";
3592 else if (arg_action == ACTION_REEXEC)
3593 method = "Reexecute";
3594 else {
3595 assert(arg_action == ACTION_SYSTEMCTL);
3596
3597 method =
3598 streq(args[0], "clear-jobs") ||
3599 streq(args[0], "cancel") ? "ClearJobs" :
3600 streq(args[0], "daemon-reexec") ? "Reexecute" :
3601 streq(args[0], "reset-failed") ? "ResetFailed" :
3602 streq(args[0], "halt") ? "Halt" :
3603 streq(args[0], "poweroff") ? "PowerOff" :
3604 streq(args[0], "reboot") ? "Reboot" :
3605 streq(args[0], "kexec") ? "KExec" :
3606 streq(args[0], "exit") ? "Exit" :
3607 /* "daemon-reload" */ "Reload";
3608 }
3609
3610 if (!(m = dbus_message_new_method_call(
3611 "org.freedesktop.systemd1",
3612 "/org/freedesktop/systemd1",
3613 "org.freedesktop.systemd1.Manager",
3614 method))) {
3615 log_error("Could not allocate message.");
3616 return -ENOMEM;
3617 }
3618
3619 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3620
3621 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3622 /* There's always a fallback possible for
3623 * legacy actions. */
3624 r = -EADDRNOTAVAIL;
3625 goto finish;
3626 }
3627
3628 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3629 /* On reexecution, we expect a disconnect, not
3630 * a reply */
3631 r = 0;
3632 goto finish;
3633 }
3634
3635 log_error("Failed to issue method call: %s", bus_error_message(&error));
3636 r = -EIO;
3637 goto finish;
3638 }
3639
3640 r = 0;
3641
3642 finish:
3643 if (m)
3644 dbus_message_unref(m);
3645
3646 if (reply)
3647 dbus_message_unref(reply);
3648
3649 dbus_error_free(&error);
3650
3651 return r;
3652 }
3653
3654 static int reset_failed(DBusConnection *bus, char **args) {
3655 DBusMessage *m = NULL;
3656 int r;
3657 DBusError error;
3658 char **name;
3659
3660 assert(bus);
3661 dbus_error_init(&error);
3662
3663 if (strv_length(args) <= 1)
3664 return daemon_reload(bus, args);
3665
3666 STRV_FOREACH(name, args+1) {
3667 DBusMessage *reply;
3668 char *n;
3669 bool b;
3670
3671 m = dbus_message_new_method_call(
3672 "org.freedesktop.systemd1",
3673 "/org/freedesktop/systemd1",
3674 "org.freedesktop.systemd1.Manager",
3675 "ResetFailedUnit");
3676 if (!m) {
3677 log_error("Could not allocate message.");
3678 r = -ENOMEM;
3679 goto finish;
3680 }
3681
3682 n = unit_name_mangle(*name);
3683 b = dbus_message_append_args(m,
3684 DBUS_TYPE_STRING, n ? &n : name,
3685 DBUS_TYPE_INVALID);
3686 free(n);
3687 if (!b) {
3688 log_error("Could not append arguments to message.");
3689 r = -ENOMEM;
3690 goto finish;
3691 }
3692
3693 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3694 if (!reply) {
3695 log_error("Failed to issue method call: %s", bus_error_message(&error));
3696 r = -EIO;
3697 goto finish;
3698 }
3699
3700 dbus_message_unref(m);
3701 dbus_message_unref(reply);
3702 m = reply = NULL;
3703 }
3704
3705 r = 0;
3706
3707 finish:
3708 if (m)
3709 dbus_message_unref(m);
3710
3711 dbus_error_free(&error);
3712
3713 return r;
3714 }
3715
3716 static int show_enviroment(DBusConnection *bus, char **args) {
3717 DBusMessage *m = NULL, *reply = NULL;
3718 DBusError error;
3719 DBusMessageIter iter, sub, sub2;
3720 int r;
3721 const char
3722 *interface = "org.freedesktop.systemd1.Manager",
3723 *property = "Environment";
3724
3725 dbus_error_init(&error);
3726
3727 pager_open_if_enabled();
3728
3729 if (!(m = dbus_message_new_method_call(
3730 "org.freedesktop.systemd1",
3731 "/org/freedesktop/systemd1",
3732 "org.freedesktop.DBus.Properties",
3733 "Get"))) {
3734 log_error("Could not allocate message.");
3735 return -ENOMEM;
3736 }
3737
3738 if (!dbus_message_append_args(m,
3739 DBUS_TYPE_STRING, &interface,
3740 DBUS_TYPE_STRING, &property,
3741 DBUS_TYPE_INVALID)) {
3742 log_error("Could not append arguments to message.");
3743 r = -ENOMEM;
3744 goto finish;
3745 }
3746
3747 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3748 log_error("Failed to issue method call: %s", bus_error_message(&error));
3749 r = -EIO;
3750 goto finish;
3751 }
3752
3753 if (!dbus_message_iter_init(reply, &iter) ||
3754 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3755 log_error("Failed to parse reply.");
3756 r = -EIO;
3757 goto finish;
3758 }
3759
3760 dbus_message_iter_recurse(&iter, &sub);
3761
3762 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3763 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3764 log_error("Failed to parse reply.");
3765 r = -EIO;
3766 goto finish;
3767 }
3768
3769 dbus_message_iter_recurse(&sub, &sub2);
3770
3771 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3772 const char *text;
3773
3774 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3775 log_error("Failed to parse reply.");
3776 r = -EIO;
3777 goto finish;
3778 }
3779
3780 dbus_message_iter_get_basic(&sub2, &text);
3781 printf("%s\n", text);
3782
3783 dbus_message_iter_next(&sub2);
3784 }
3785
3786 r = 0;
3787
3788 finish:
3789 if (m)
3790 dbus_message_unref(m);
3791
3792 if (reply)
3793 dbus_message_unref(reply);
3794
3795 dbus_error_free(&error);
3796
3797 return r;
3798 }
3799
3800 static int switch_root(DBusConnection *bus, char **args) {
3801 DBusMessage *m = NULL, *reply = NULL;
3802 unsigned l;
3803 const char *root, *init;
3804 DBusError error;
3805 int r;
3806
3807 dbus_error_init(&error);
3808
3809 l = strv_length(args);
3810 if (l < 2 || l > 3) {
3811 log_error("Wrong number of arguments.");
3812 return -EINVAL;
3813 }
3814
3815 root = args[1];
3816 init = l >= 3 ? args[2] : "";
3817
3818 m = dbus_message_new_method_call(
3819 "org.freedesktop.systemd1",
3820 "/org/freedesktop/systemd1",
3821 "org.freedesktop.systemd1.Manager",
3822 "SwitchRoot");
3823 if (!m) {
3824 log_error("Could not allocate message.");
3825 return -ENOMEM;
3826 }
3827
3828 if (!dbus_message_append_args(
3829 m,
3830 DBUS_TYPE_STRING, &root,
3831 DBUS_TYPE_STRING, &init,
3832 DBUS_TYPE_INVALID)) {
3833 log_error("Could not append arguments to message.");
3834 r = -ENOMEM;
3835 goto finish;
3836 }
3837
3838 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3839 if (!reply) {
3840 log_error("Failed to issue method call: %s", bus_error_message(&error));
3841 r = -EIO;
3842 goto finish;
3843 }
3844
3845 r = 0;
3846
3847 finish:
3848 if (m)
3849 dbus_message_unref(m);
3850
3851 if (reply)
3852 dbus_message_unref(reply);
3853
3854 dbus_error_free(&error);
3855
3856 return r;
3857 }
3858
3859 static int set_environment(DBusConnection *bus, char **args) {
3860 DBusMessage *m = NULL, *reply = NULL;
3861 DBusError error;
3862 int r;
3863 const char *method;
3864 DBusMessageIter iter, sub;
3865 char **name;
3866
3867 dbus_error_init(&error);
3868
3869 method = streq(args[0], "set-environment")
3870 ? "SetEnvironment"
3871 : "UnsetEnvironment";
3872
3873 if (!(m = dbus_message_new_method_call(
3874 "org.freedesktop.systemd1",
3875 "/org/freedesktop/systemd1",
3876 "org.freedesktop.systemd1.Manager",
3877 method))) {
3878
3879 log_error("Could not allocate message.");
3880 return -ENOMEM;
3881 }
3882
3883 dbus_message_iter_init_append(m, &iter);
3884
3885 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3886 log_error("Could not append arguments to message.");
3887 r = -ENOMEM;
3888 goto finish;
3889 }
3890
3891 STRV_FOREACH(name, args+1)
3892 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3893 log_error("Could not append arguments to message.");
3894 r = -ENOMEM;
3895 goto finish;
3896 }
3897
3898 if (!dbus_message_iter_close_container(&iter, &sub)) {
3899 log_error("Could not append arguments to message.");
3900 r = -ENOMEM;
3901 goto finish;
3902 }
3903
3904 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3905 log_error("Failed to issue method call: %s", bus_error_message(&error));
3906 r = -EIO;
3907 goto finish;
3908 }
3909
3910 r = 0;
3911
3912 finish:
3913 if (m)
3914 dbus_message_unref(m);
3915
3916 if (reply)
3917 dbus_message_unref(reply);
3918
3919 dbus_error_free(&error);
3920
3921 return r;
3922 }
3923
3924 static int enable_sysv_units(char **args) {
3925 int r = 0;
3926
3927 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3928 const char *verb = args[0];
3929 unsigned f = 1, t = 1;
3930 LookupPaths paths;
3931
3932 if (arg_scope != UNIT_FILE_SYSTEM)
3933 return 0;
3934
3935 if (!streq(verb, "enable") &&
3936 !streq(verb, "disable") &&
3937 !streq(verb, "is-enabled"))
3938 return 0;
3939
3940 /* Processes all SysV units, and reshuffles the array so that
3941 * afterwards only the native units remain */
3942
3943 zero(paths);
3944 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false, NULL, NULL, NULL);
3945 if (r < 0)
3946 return r;
3947
3948 r = 0;
3949 for (f = 1; args[f]; f++) {
3950 const char *name;
3951 char *p;
3952 bool found_native = false, found_sysv;
3953 unsigned c = 1;
3954 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3955 char **k, *l, *q = NULL;
3956 int j;
3957 pid_t pid;
3958 siginfo_t status;
3959
3960 name = args[f];
3961
3962 if (!endswith(name, ".service"))
3963 continue;
3964
3965 if (path_is_absolute(name))
3966 continue;
3967
3968 STRV_FOREACH(k, paths.unit_path) {
3969 p = NULL;
3970
3971 if (!isempty(arg_root))
3972 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3973 else
3974 asprintf(&p, "%s/%s", *k, name);
3975
3976 if (!p) {
3977 log_error("No memory");
3978 r = -ENOMEM;
3979 goto finish;
3980 }
3981
3982 found_native = access(p, F_OK) >= 0;
3983 free(p);
3984
3985 if (found_native)
3986 break;
3987 }
3988
3989 if (found_native)
3990 continue;
3991
3992 p = NULL;
3993 if (!isempty(arg_root))
3994 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3995 else
3996 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3997 if (!p) {
3998 log_error("No memory");
3999 r = -ENOMEM;
4000 goto finish;
4001 }
4002
4003 p[strlen(p) - sizeof(".service") + 1] = 0;
4004 found_sysv = access(p, F_OK) >= 0;
4005
4006 if (!found_sysv) {
4007 free(p);
4008 continue;
4009 }
4010
4011 /* Mark this entry, so that we don't try enabling it as native unit */
4012 args[f] = (char*) "";
4013
4014 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4015
4016 if (!isempty(arg_root))
4017 argv[c++] = q = strappend("--root=", arg_root);
4018
4019 argv[c++] = path_get_file_name(p);
4020 argv[c++] =
4021 streq(verb, "enable") ? "on" :
4022 streq(verb, "disable") ? "off" : "--level=5";
4023 argv[c] = NULL;
4024
4025 l = strv_join((char**)argv, " ");
4026 if (!l) {
4027 log_error("No memory.");
4028 free(q);
4029 free(p);
4030 r = -ENOMEM;
4031 goto finish;
4032 }
4033
4034 log_info("Executing %s", l);
4035 free(l);
4036
4037 pid = fork();
4038 if (pid < 0) {
4039 log_error("Failed to fork: %m");
4040 free(p);
4041 free(q);
4042 r = -errno;
4043 goto finish;
4044 } else if (pid == 0) {
4045 /* Child */
4046
4047 execv(argv[0], (char**) argv);
4048 _exit(EXIT_FAILURE);
4049 }
4050
4051 free(p);
4052 free(q);
4053
4054 j = wait_for_terminate(pid, &status);
4055 if (j < 0) {
4056 log_error("Failed to wait for child: %s", strerror(-r));
4057 r = j;
4058 goto finish;
4059 }
4060
4061 if (status.si_code == CLD_EXITED) {
4062 if (streq(verb, "is-enabled")) {
4063 if (status.si_status == 0) {
4064 if (!arg_quiet)
4065 puts("enabled");
4066 r = 1;
4067 } else {
4068 if (!arg_quiet)
4069 puts("disabled");
4070 }
4071
4072 } else if (status.si_status != 0) {
4073 r = -EINVAL;
4074 goto finish;
4075 }
4076 } else {
4077 r = -EPROTO;
4078 goto finish;
4079 }
4080 }
4081
4082 finish:
4083 lookup_paths_free(&paths);
4084
4085 /* Drop all SysV units */
4086 for (f = 1, t = 1; args[f]; f++) {
4087
4088 if (isempty(args[f]))
4089 continue;
4090
4091 args[t++] = args[f];
4092 }
4093
4094 args[t] = NULL;
4095
4096 #endif
4097 return r;
4098 }
4099
4100 static int enable_unit(DBusConnection *bus, char **args) {
4101 const char *verb = args[0];
4102 UnitFileChange *changes = NULL;
4103 unsigned n_changes = 0, i;
4104 int carries_install_info = -1;
4105 DBusMessage *m = NULL, *reply = NULL;
4106 int r;
4107 DBusError error;
4108
4109 r = enable_sysv_units(args);
4110 if (r < 0)
4111 return r;
4112
4113 if (!args[1])
4114 return 0;
4115
4116 dbus_error_init(&error);
4117
4118 if (!bus || avoid_bus()) {
4119 if (streq(verb, "enable")) {
4120 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4121 carries_install_info = r;
4122 } else if (streq(verb, "disable"))
4123 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4124 else if (streq(verb, "reenable")) {
4125 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4126 carries_install_info = r;
4127 } else if (streq(verb, "link"))
4128 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4129 else if (streq(verb, "preset")) {
4130 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4131 carries_install_info = r;
4132 } else if (streq(verb, "mask"))
4133 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4134 else if (streq(verb, "unmask"))
4135 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4136 else
4137 assert_not_reached("Unknown verb");
4138
4139 if (r < 0) {
4140 log_error("Operation failed: %s", strerror(-r));
4141 goto finish;
4142 }
4143
4144 if (!arg_quiet) {
4145 for (i = 0; i < n_changes; i++) {
4146 if (changes[i].type == UNIT_FILE_SYMLINK)
4147 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4148 else
4149 log_info("rm '%s'", changes[i].path);
4150 }
4151 }
4152
4153 } else {
4154 const char *method;
4155 bool send_force = true, expect_carries_install_info = false;
4156 dbus_bool_t a, b;
4157 DBusMessageIter iter, sub, sub2;
4158
4159 if (streq(verb, "enable")) {
4160 method = "EnableUnitFiles";
4161 expect_carries_install_info = true;
4162 } else if (streq(verb, "disable")) {
4163 method = "DisableUnitFiles";
4164 send_force = false;
4165 } else if (streq(verb, "reenable")) {
4166 method = "ReenableUnitFiles";
4167 expect_carries_install_info = true;
4168 } else if (streq(verb, "link"))
4169 method = "LinkUnitFiles";
4170 else if (streq(verb, "preset")) {
4171 method = "PresetUnitFiles";
4172 expect_carries_install_info = true;
4173 } else if (streq(verb, "mask"))
4174 method = "MaskUnitFiles";
4175 else if (streq(verb, "unmask")) {
4176 method = "UnmaskUnitFiles";
4177 send_force = false;
4178 } else
4179 assert_not_reached("Unknown verb");
4180
4181 m = dbus_message_new_method_call(
4182 "org.freedesktop.systemd1",
4183 "/org/freedesktop/systemd1",
4184 "org.freedesktop.systemd1.Manager",
4185 method);
4186 if (!m) {
4187 log_error("Out of memory");
4188 r = -ENOMEM;
4189 goto finish;
4190 }
4191
4192 dbus_message_iter_init_append(m, &iter);
4193
4194 r = bus_append_strv_iter(&iter, args+1);
4195 if (r < 0) {
4196 log_error("Failed to append unit files.");
4197 goto finish;
4198 }
4199
4200 a = arg_runtime;
4201 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4202 log_error("Failed to append runtime boolean.");
4203 r = -ENOMEM;
4204 goto finish;
4205 }
4206
4207 if (send_force) {
4208 b = arg_force;
4209
4210 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4211 log_error("Failed to append force boolean.");
4212 r = -ENOMEM;
4213 goto finish;
4214 }
4215 }
4216
4217 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4218 if (!reply) {
4219 log_error("Failed to issue method call: %s", bus_error_message(&error));
4220 r = -EIO;
4221 goto finish;
4222 }
4223
4224 if (!dbus_message_iter_init(reply, &iter)) {
4225 log_error("Failed to initialize iterator.");
4226 goto finish;
4227 }
4228
4229 if (expect_carries_install_info) {
4230 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4231 if (r < 0) {
4232 log_error("Failed to parse reply.");
4233 goto finish;
4234 }
4235
4236 carries_install_info = b;
4237 }
4238
4239 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4240 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4241 log_error("Failed to parse reply.");
4242 r = -EIO;
4243 goto finish;
4244 }
4245
4246 dbus_message_iter_recurse(&iter, &sub);
4247 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4248 const char *type, *path, *source;
4249
4250 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4251 log_error("Failed to parse reply.");
4252 r = -EIO;
4253 goto finish;
4254 }
4255
4256 dbus_message_iter_recurse(&sub, &sub2);
4257
4258 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4259 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4260 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4261 log_error("Failed to parse reply.");
4262 r = -EIO;
4263 goto finish;
4264 }
4265
4266 if (!arg_quiet) {
4267 if (streq(type, "symlink"))
4268 log_info("ln -s '%s' '%s'", source, path);
4269 else
4270 log_info("rm '%s'", path);
4271 }
4272
4273 dbus_message_iter_next(&sub);
4274 }
4275
4276 /* Try to reload if enabeld */
4277 if (!arg_no_reload)
4278 r = daemon_reload(bus, args);
4279 }
4280
4281 if (carries_install_info == 0)
4282 log_warning("The unit files have no [Install] section. They are not meant to be enabled using systemctl.");
4283
4284 finish:
4285 if (m)
4286 dbus_message_unref(m);
4287
4288 if (reply)
4289 dbus_message_unref(reply);
4290
4291 unit_file_changes_free(changes, n_changes);
4292
4293 dbus_error_free(&error);
4294 return r;
4295 }
4296
4297 static int unit_is_enabled(DBusConnection *bus, char **args) {
4298 DBusError error;
4299 int r;
4300 DBusMessage *m = NULL, *reply = NULL;
4301 bool enabled;
4302 char **name;
4303
4304 dbus_error_init(&error);
4305
4306 r = enable_sysv_units(args);
4307 if (r < 0)
4308 return r;
4309
4310 enabled = r > 0;
4311
4312 if (!bus || avoid_bus()) {
4313
4314 STRV_FOREACH(name, args+1) {
4315 UnitFileState state;
4316
4317 state = unit_file_get_state(arg_scope, arg_root, *name);
4318 if (state < 0) {
4319 r = state;
4320 goto finish;
4321 }
4322
4323 if (state == UNIT_FILE_ENABLED ||
4324 state == UNIT_FILE_ENABLED_RUNTIME ||
4325 state == UNIT_FILE_STATIC)
4326 enabled = true;
4327
4328 if (!arg_quiet)
4329 puts(unit_file_state_to_string(state));
4330 }
4331
4332 } else {
4333 STRV_FOREACH(name, args+1) {
4334 const char *s;
4335
4336 m = dbus_message_new_method_call(
4337 "org.freedesktop.systemd1",
4338 "/org/freedesktop/systemd1",
4339 "org.freedesktop.systemd1.Manager",
4340 "GetUnitFileState");
4341 if (!m) {
4342 log_error("Out of memory");
4343 r = -ENOMEM;
4344 goto finish;
4345 }
4346
4347 if (!dbus_message_append_args(m,
4348 DBUS_TYPE_STRING, name,
4349 DBUS_TYPE_INVALID)) {
4350 log_error("Could not append arguments to message.");
4351 r = -ENOMEM;
4352 goto finish;
4353 }
4354
4355 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4356 if (!reply) {
4357 log_error("Failed to issue method call: %s", bus_error_message(&error));
4358 r = -EIO;
4359 goto finish;
4360 }
4361
4362 if (!dbus_message_get_args(reply, &error,
4363 DBUS_TYPE_STRING, &s,
4364 DBUS_TYPE_INVALID)) {
4365 log_error("Failed to parse reply: %s", bus_error_message(&error));
4366 r = -EIO;
4367 goto finish;
4368 }
4369
4370 dbus_message_unref(m);
4371 dbus_message_unref(reply);
4372 m = reply = NULL;
4373
4374 if (streq(s, "enabled") ||
4375 streq(s, "enabled-runtime") ||
4376 streq(s, "static"))
4377 enabled = true;
4378
4379 if (!arg_quiet)
4380 puts(s);
4381 }
4382 }
4383
4384 r = enabled ? 0 : 1;
4385
4386 finish:
4387 if (m)
4388 dbus_message_unref(m);
4389
4390 if (reply)
4391 dbus_message_unref(reply);
4392
4393 dbus_error_free(&error);
4394 return r;
4395 }
4396
4397 static int systemctl_help(void) {
4398
4399 pager_open_if_enabled();
4400
4401 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4402 "Query or send control commands to the systemd manager.\n\n"
4403 " -h --help Show this help\n"
4404 " --version Show package version\n"
4405 " -t --type=TYPE List only units of a particular type\n"
4406 " -p --property=NAME Show only properties by this name\n"
4407 " -a --all Show all units/properties, including dead/empty ones\n"
4408 " --failed Show only failed units\n"
4409 " --full Don't ellipsize unit names on output\n"
4410 " --fail When queueing a new job, fail if conflicting jobs are\n"
4411 " pending\n"
4412 " --ignore-dependencies\n"
4413 " When queueing a new job, ignore all its dependencies\n"
4414 " --kill-who=WHO Who to send signal to\n"
4415 " -s --signal=SIGNAL Which signal to send\n"
4416 " -H --host=[USER@]HOST\n"
4417 " Show information for remote host\n"
4418 " -P --privileged Acquire privileges before execution\n"
4419 " -q --quiet Suppress output\n"
4420 " --no-block Do not wait until operation finished\n"
4421 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4422 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4423 " configuration\n"
4424 " --no-legend Do not print a legend (column headers and hints)\n"
4425 " --no-pager Do not pipe output into a pager\n"
4426 " --no-ask-password\n"
4427 " Do not ask for system passwords\n"
4428 " --order When generating graph for dot, show only order\n"
4429 " --require When generating graph for dot, show only requirement\n"
4430 " --system Connect to system manager\n"
4431 " --user Connect to user service manager\n"
4432 " --global Enable/disable unit files globally\n"
4433 " -f --force When enabling unit files, override existing symlinks\n"
4434 " When shutting down, execute action immediately\n"
4435 " --root=PATH Enable unit files in the specified root directory\n"
4436 " --runtime Enable unit files only temporarily until next reboot\n"
4437 " -n --lines=INTEGER Journal entries to show\n"
4438 " --follow Follow journal\n"
4439 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4440 " verbose, export, json, cat)\n\n"
4441 "Unit Commands:\n"
4442 " list-units List loaded units\n"
4443 " start [NAME...] Start (activate) one or more units\n"
4444 " stop [NAME...] Stop (deactivate) one or more units\n"
4445 " reload [NAME...] Reload one or more units\n"
4446 " restart [NAME...] Start or restart one or more units\n"
4447 " try-restart [NAME...] Restart one or more units if active\n"
4448 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4449 " otherwise start or restart\n"
4450 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4451 " otherwise restart if active\n"
4452 " isolate [NAME] Start one unit and stop all others\n"
4453 " kill [NAME...] Send signal to processes of a unit\n"
4454 " is-active [NAME...] Check whether units are active\n"
4455 " status [NAME...|PID...] Show runtime status of one or more units\n"
4456 " show [NAME...|JOB...] Show properties of one or more\n"
4457 " units/jobs or the manager\n"
4458 " help [NAME...|PID...] Show manual for one or more units\n"
4459 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4460 " units\n"
4461 " load [NAME...] Load one or more units\n\n"
4462 "Unit File Commands:\n"
4463 " list-unit-files List installed unit files\n"
4464 " enable [NAME...] Enable one or more unit files\n"
4465 " disable [NAME...] Disable one or more unit files\n"
4466 " reenable [NAME...] Reenable one or more unit files\n"
4467 " preset [NAME...] Enable/disable one or more unit files\n"
4468 " based on preset configuration\n"
4469 " mask [NAME...] Mask one or more units\n"
4470 " unmask [NAME...] Unmask one or more units\n"
4471 " link [PATH...] Link one or more units files into\n"
4472 " the search path\n"
4473 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4474 "Job Commands:\n"
4475 " list-jobs List jobs\n"
4476 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4477 "Status Commands:\n"
4478 " dump Dump server status\n"
4479 " dot Dump dependency graph for dot(1)\n\n"
4480 "Snapshot Commands:\n"
4481 " snapshot [NAME] Create a snapshot\n"
4482 " delete [NAME...] Remove one or more snapshots\n\n"
4483 "Environment Commands:\n"
4484 " show-environment Dump environment\n"
4485 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4486 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4487 "Manager Lifecycle Commands:\n"
4488 " daemon-reload Reload systemd manager configuration\n"
4489 " daemon-reexec Reexecute systemd manager\n\n"
4490 "System Commands:\n"
4491 " default Enter system default mode\n"
4492 " rescue Enter system rescue mode\n"
4493 " emergency Enter system emergency mode\n"
4494 " halt Shut down and halt the system\n"
4495 " poweroff Shut down and power-off the system\n"
4496 " reboot Shut down and reboot the system\n"
4497 " kexec Shut down and reboot the system with kexec\n"
4498 " exit Request user instance exit\n"
4499 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4500 " suspend Suspend the system\n"
4501 " hibernate Hibernate the system\n",
4502 program_invocation_short_name);
4503
4504 return 0;
4505 }
4506
4507 static int halt_help(void) {
4508
4509 printf("%s [OPTIONS...]\n\n"
4510 "%s the system.\n\n"
4511 " --help Show this help\n"
4512 " --halt Halt the machine\n"
4513 " -p --poweroff Switch off the machine\n"
4514 " --reboot Reboot the machine\n"
4515 " -f --force Force immediate halt/power-off/reboot\n"
4516 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4517 " -d --no-wtmp Don't write wtmp record\n"
4518 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4519 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4520 program_invocation_short_name,
4521 arg_action == ACTION_REBOOT ? "Reboot" :
4522 arg_action == ACTION_POWEROFF ? "Power off" :
4523 "Halt");
4524
4525 return 0;
4526 }
4527
4528 static int shutdown_help(void) {
4529
4530 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4531 "Shut down the system.\n\n"
4532 " --help Show this help\n"
4533 " -H --halt Halt the machine\n"
4534 " -P --poweroff Power-off the machine\n"
4535 " -r --reboot Reboot the machine\n"
4536 " -h Equivalent to --poweroff, overridden by --halt\n"
4537 " -k Don't halt/power-off/reboot, just send warnings\n"
4538 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4539 " -c Cancel a pending shutdown\n",
4540 program_invocation_short_name);
4541
4542 return 0;
4543 }
4544
4545 static int telinit_help(void) {
4546
4547 printf("%s [OPTIONS...] {COMMAND}\n\n"
4548 "Send control commands to the init daemon.\n\n"
4549 " --help Show this help\n"
4550 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4551 "Commands:\n"
4552 " 0 Power-off the machine\n"
4553 " 6 Reboot the machine\n"
4554 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4555 " 1, s, S Enter rescue mode\n"
4556 " q, Q Reload init daemon configuration\n"
4557 " u, U Reexecute init daemon\n",
4558 program_invocation_short_name);
4559
4560 return 0;
4561 }
4562
4563 static int runlevel_help(void) {
4564
4565 printf("%s [OPTIONS...]\n\n"
4566 "Prints the previous and current runlevel of the init system.\n\n"
4567 " --help Show this help\n",
4568 program_invocation_short_name);
4569
4570 return 0;
4571 }
4572
4573 static int systemctl_parse_argv(int argc, char *argv[]) {
4574
4575 enum {
4576 ARG_FAIL = 0x100,
4577 ARG_IGNORE_DEPENDENCIES,
4578 ARG_VERSION,
4579 ARG_USER,
4580 ARG_SYSTEM,
4581 ARG_GLOBAL,
4582 ARG_NO_BLOCK,
4583 ARG_NO_LEGEND,
4584 ARG_NO_PAGER,
4585 ARG_NO_WALL,
4586 ARG_ORDER,
4587 ARG_REQUIRE,
4588 ARG_ROOT,
4589 ARG_FULL,
4590 ARG_NO_RELOAD,
4591 ARG_KILL_MODE,
4592 ARG_KILL_WHO,
4593 ARG_NO_ASK_PASSWORD,
4594 ARG_FAILED,
4595 ARG_RUNTIME,
4596 ARG_FOLLOW,
4597 ARG_FORCE
4598 };
4599
4600 static const struct option options[] = {
4601 { "help", no_argument, NULL, 'h' },
4602 { "version", no_argument, NULL, ARG_VERSION },
4603 { "type", required_argument, NULL, 't' },
4604 { "property", required_argument, NULL, 'p' },
4605 { "all", no_argument, NULL, 'a' },
4606 { "failed", no_argument, NULL, ARG_FAILED },
4607 { "full", no_argument, NULL, ARG_FULL },
4608 { "fail", no_argument, NULL, ARG_FAIL },
4609 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4610 { "user", no_argument, NULL, ARG_USER },
4611 { "system", no_argument, NULL, ARG_SYSTEM },
4612 { "global", no_argument, NULL, ARG_GLOBAL },
4613 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4614 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4615 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4616 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4617 { "quiet", no_argument, NULL, 'q' },
4618 { "order", no_argument, NULL, ARG_ORDER },
4619 { "require", no_argument, NULL, ARG_REQUIRE },
4620 { "root", required_argument, NULL, ARG_ROOT },
4621 { "force", no_argument, NULL, ARG_FORCE },
4622 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4623 { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */
4624 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4625 { "signal", required_argument, NULL, 's' },
4626 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4627 { "host", required_argument, NULL, 'H' },
4628 { "privileged",no_argument, NULL, 'P' },
4629 { "runtime", no_argument, NULL, ARG_RUNTIME },
4630 { "lines", required_argument, NULL, 'n' },
4631 { "follow", no_argument, NULL, ARG_FOLLOW },
4632 { "output", required_argument, NULL, 'o' },
4633 { NULL, 0, NULL, 0 }
4634 };
4635
4636 int c;
4637
4638 assert(argc >= 0);
4639 assert(argv);
4640
4641 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4642
4643 switch (c) {
4644
4645 case 'h':
4646 systemctl_help();
4647 return 0;
4648
4649 case ARG_VERSION:
4650 puts(PACKAGE_STRING);
4651 puts(DISTRIBUTION);
4652 puts(SYSTEMD_FEATURES);
4653 return 0;
4654
4655 case 't':
4656 if (unit_type_from_string(optarg) >= 0) {
4657 arg_type = optarg;
4658 break;
4659 }
4660 if (unit_load_state_from_string(optarg) >= 0) {
4661 arg_load_state = optarg;
4662 break;
4663 }
4664 log_error("Unkown unit type or load state '%s'.",
4665 optarg);
4666 return -EINVAL;
4667 case 'p': {
4668 char **l;
4669
4670 if (!(l = strv_append(arg_property, optarg)))
4671 return -ENOMEM;
4672
4673 strv_free(arg_property);
4674 arg_property = l;
4675
4676 /* If the user asked for a particular
4677 * property, show it to him, even if it is
4678 * empty. */
4679 arg_all = true;
4680 break;
4681 }
4682
4683 case 'a':
4684 arg_all = true;
4685 break;
4686
4687 case ARG_FAIL:
4688 arg_job_mode = "fail";
4689 break;
4690
4691 case ARG_IGNORE_DEPENDENCIES:
4692 arg_job_mode = "ignore-dependencies";
4693 break;
4694
4695 case ARG_USER:
4696 arg_scope = UNIT_FILE_USER;
4697 break;
4698
4699 case ARG_SYSTEM:
4700 arg_scope = UNIT_FILE_SYSTEM;
4701 break;
4702
4703 case ARG_GLOBAL:
4704 arg_scope = UNIT_FILE_GLOBAL;
4705 break;
4706
4707 case ARG_NO_BLOCK:
4708 arg_no_block = true;
4709 break;
4710
4711 case ARG_NO_LEGEND:
4712 arg_no_legend = true;
4713 break;
4714
4715 case ARG_NO_PAGER:
4716 arg_no_pager = true;
4717 break;
4718
4719 case ARG_NO_WALL:
4720 arg_no_wall = true;
4721 break;
4722
4723 case ARG_ORDER:
4724 arg_dot = DOT_ORDER;
4725 break;
4726
4727 case ARG_REQUIRE:
4728 arg_dot = DOT_REQUIRE;
4729 break;
4730
4731 case ARG_ROOT:
4732 arg_root = optarg;
4733 break;
4734
4735 case ARG_FULL:
4736 arg_full = true;
4737 break;
4738
4739 case ARG_FAILED:
4740 arg_failed = true;
4741 break;
4742
4743 case 'q':
4744 arg_quiet = true;
4745 break;
4746
4747 case ARG_FORCE:
4748 arg_force ++;
4749 break;
4750
4751 case ARG_FOLLOW:
4752 arg_follow = true;
4753 break;
4754
4755 case 'f':
4756 /* -f is short for both --follow and --force! */
4757 arg_force ++;
4758 arg_follow = true;
4759 break;
4760
4761 case ARG_NO_RELOAD:
4762 arg_no_reload = true;
4763 break;
4764
4765 case ARG_KILL_WHO:
4766 arg_kill_who = optarg;
4767 break;
4768
4769 case ARG_KILL_MODE:
4770 arg_kill_mode = optarg;
4771 break;
4772
4773 case 's':
4774 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4775 log_error("Failed to parse signal string %s.", optarg);
4776 return -EINVAL;
4777 }
4778 break;
4779
4780 case ARG_NO_ASK_PASSWORD:
4781 arg_ask_password = false;
4782 break;
4783
4784 case 'P':
4785 arg_transport = TRANSPORT_POLKIT;
4786 break;
4787
4788 case 'H':
4789 arg_transport = TRANSPORT_SSH;
4790 arg_host = optarg;
4791 break;
4792
4793 case ARG_RUNTIME:
4794 arg_runtime = true;
4795 break;
4796
4797 case 'n':
4798 if (safe_atou(optarg, &arg_lines) < 0) {
4799 log_error("Failed to parse lines '%s'", optarg);
4800 return -EINVAL;
4801 }
4802 break;
4803
4804 case 'o':
4805 arg_output = output_mode_from_string(optarg);
4806 if (arg_output < 0) {
4807 log_error("Unknown output '%s'.", optarg);
4808 return -EINVAL;
4809 }
4810 break;
4811
4812 case '?':
4813 return -EINVAL;
4814
4815 default:
4816 log_error("Unknown option code '%c'.", c);
4817 return -EINVAL;
4818 }
4819 }
4820
4821 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4822 log_error("Cannot access user instance remotely.");
4823 return -EINVAL;
4824 }
4825
4826 return 1;
4827 }
4828
4829 static int halt_parse_argv(int argc, char *argv[]) {
4830
4831 enum {
4832 ARG_HELP = 0x100,
4833 ARG_HALT,
4834 ARG_REBOOT,
4835 ARG_NO_WALL
4836 };
4837
4838 static const struct option options[] = {
4839 { "help", no_argument, NULL, ARG_HELP },
4840 { "halt", no_argument, NULL, ARG_HALT },
4841 { "poweroff", no_argument, NULL, 'p' },
4842 { "reboot", no_argument, NULL, ARG_REBOOT },
4843 { "force", no_argument, NULL, 'f' },
4844 { "wtmp-only", no_argument, NULL, 'w' },
4845 { "no-wtmp", no_argument, NULL, 'd' },
4846 { "no-sync", no_argument, NULL, 'n' },
4847 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4848 { NULL, 0, NULL, 0 }
4849 };
4850
4851 int c, runlevel;
4852
4853 assert(argc >= 0);
4854 assert(argv);
4855
4856 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4857 if (runlevel == '0' || runlevel == '6')
4858 arg_force = 2;
4859
4860 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4861 switch (c) {
4862
4863 case ARG_HELP:
4864 halt_help();
4865 return 0;
4866
4867 case ARG_HALT:
4868 arg_action = ACTION_HALT;
4869 break;
4870
4871 case 'p':
4872 if (arg_action != ACTION_REBOOT)
4873 arg_action = ACTION_POWEROFF;
4874 break;
4875
4876 case ARG_REBOOT:
4877 arg_action = ACTION_REBOOT;
4878 break;
4879
4880 case 'f':
4881 arg_force = 2;
4882 break;
4883
4884 case 'w':
4885 arg_dry = true;
4886 break;
4887
4888 case 'd':
4889 arg_no_wtmp = true;
4890 break;
4891
4892 case 'n':
4893 arg_no_sync = true;
4894 break;
4895
4896 case ARG_NO_WALL:
4897 arg_no_wall = true;
4898 break;
4899
4900 case 'i':
4901 case 'h':
4902 /* Compatibility nops */
4903 break;
4904
4905 case '?':
4906 return -EINVAL;
4907
4908 default:
4909 log_error("Unknown option code '%c'.", c);
4910 return -EINVAL;
4911 }
4912 }
4913
4914 if (optind < argc) {
4915 log_error("Too many arguments.");
4916 return -EINVAL;
4917 }
4918
4919 return 1;
4920 }
4921
4922 static int parse_time_spec(const char *t, usec_t *_u) {
4923 assert(t);
4924 assert(_u);
4925
4926 if (streq(t, "now"))
4927 *_u = 0;
4928 else if (!strchr(t, ':')) {
4929 uint64_t u;
4930
4931 if (safe_atou64(t, &u) < 0)
4932 return -EINVAL;
4933
4934 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4935 } else {
4936 char *e = NULL;
4937 long hour, minute;
4938 struct tm tm;
4939 time_t s;
4940 usec_t n;
4941
4942 errno = 0;
4943 hour = strtol(t, &e, 10);
4944 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4945 return -EINVAL;
4946
4947 minute = strtol(e+1, &e, 10);
4948 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4949 return -EINVAL;
4950
4951 n = now(CLOCK_REALTIME);
4952 s = (time_t) (n / USEC_PER_SEC);
4953
4954 zero(tm);
4955 assert_se(localtime_r(&s, &tm));
4956
4957 tm.tm_hour = (int) hour;
4958 tm.tm_min = (int) minute;
4959 tm.tm_sec = 0;
4960
4961 assert_se(s = mktime(&tm));
4962
4963 *_u = (usec_t) s * USEC_PER_SEC;
4964
4965 while (*_u <= n)
4966 *_u += USEC_PER_DAY;
4967 }
4968
4969 return 0;
4970 }
4971
4972 static int shutdown_parse_argv(int argc, char *argv[]) {
4973
4974 enum {
4975 ARG_HELP = 0x100,
4976 ARG_NO_WALL
4977 };
4978
4979 static const struct option options[] = {
4980 { "help", no_argument, NULL, ARG_HELP },
4981 { "halt", no_argument, NULL, 'H' },
4982 { "poweroff", no_argument, NULL, 'P' },
4983 { "reboot", no_argument, NULL, 'r' },
4984 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4985 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4986 { NULL, 0, NULL, 0 }
4987 };
4988
4989 int c, r;
4990
4991 assert(argc >= 0);
4992 assert(argv);
4993
4994 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4995 switch (c) {
4996
4997 case ARG_HELP:
4998 shutdown_help();
4999 return 0;
5000
5001 case 'H':
5002 arg_action = ACTION_HALT;
5003 break;
5004
5005 case 'P':
5006 arg_action = ACTION_POWEROFF;
5007 break;
5008
5009 case 'r':
5010 if (kexec_loaded())
5011 arg_action = ACTION_KEXEC;
5012 else
5013 arg_action = ACTION_REBOOT;
5014 break;
5015
5016 case 'K':
5017 arg_action = ACTION_KEXEC;
5018 break;
5019
5020 case 'h':
5021 if (arg_action != ACTION_HALT)
5022 arg_action = ACTION_POWEROFF;
5023 break;
5024
5025 case 'k':
5026 arg_dry = true;
5027 break;
5028
5029 case ARG_NO_WALL:
5030 arg_no_wall = true;
5031 break;
5032
5033 case 't':
5034 case 'a':
5035 /* Compatibility nops */
5036 break;
5037
5038 case 'c':
5039 arg_action = ACTION_CANCEL_SHUTDOWN;
5040 break;
5041
5042 case '?':
5043 return -EINVAL;
5044
5045 default:
5046 log_error("Unknown option code '%c'.", c);
5047 return -EINVAL;
5048 }
5049 }
5050
5051 if (argc > optind) {
5052 r = parse_time_spec(argv[optind], &arg_when);
5053 if (r < 0) {
5054 log_error("Failed to parse time specification: %s", argv[optind]);
5055 return r;
5056 }
5057 } else
5058 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5059
5060 /* We skip the time argument */
5061 if (argc > optind + 1)
5062 arg_wall = argv + optind + 1;
5063
5064 optind = argc;
5065
5066 return 1;
5067 }
5068
5069 static int telinit_parse_argv(int argc, char *argv[]) {
5070
5071 enum {
5072 ARG_HELP = 0x100,
5073 ARG_NO_WALL
5074 };
5075
5076 static const struct option options[] = {
5077 { "help", no_argument, NULL, ARG_HELP },
5078 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5079 { NULL, 0, NULL, 0 }
5080 };
5081
5082 static const struct {
5083 char from;
5084 enum action to;
5085 } table[] = {
5086 { '0', ACTION_POWEROFF },
5087 { '6', ACTION_REBOOT },
5088 { '1', ACTION_RESCUE },
5089 { '2', ACTION_RUNLEVEL2 },
5090 { '3', ACTION_RUNLEVEL3 },
5091 { '4', ACTION_RUNLEVEL4 },
5092 { '5', ACTION_RUNLEVEL5 },
5093 { 's', ACTION_RESCUE },
5094 { 'S', ACTION_RESCUE },
5095 { 'q', ACTION_RELOAD },
5096 { 'Q', ACTION_RELOAD },
5097 { 'u', ACTION_REEXEC },
5098 { 'U', ACTION_REEXEC }
5099 };
5100
5101 unsigned i;
5102 int c;
5103
5104 assert(argc >= 0);
5105 assert(argv);
5106
5107 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5108 switch (c) {
5109
5110 case ARG_HELP:
5111 telinit_help();
5112 return 0;
5113
5114 case ARG_NO_WALL:
5115 arg_no_wall = true;
5116 break;
5117
5118 case '?':
5119 return -EINVAL;
5120
5121 default:
5122 log_error("Unknown option code '%c'.", c);
5123 return -EINVAL;
5124 }
5125 }
5126
5127 if (optind >= argc) {
5128 telinit_help();
5129 return -EINVAL;
5130 }
5131
5132 if (optind + 1 < argc) {
5133 log_error("Too many arguments.");
5134 return -EINVAL;
5135 }
5136
5137 if (strlen(argv[optind]) != 1) {
5138 log_error("Expected single character argument.");
5139 return -EINVAL;
5140 }
5141
5142 for (i = 0; i < ELEMENTSOF(table); i++)
5143 if (table[i].from == argv[optind][0])
5144 break;
5145
5146 if (i >= ELEMENTSOF(table)) {
5147 log_error("Unknown command '%s'.", argv[optind]);
5148 return -EINVAL;
5149 }
5150
5151 arg_action = table[i].to;
5152
5153 optind ++;
5154
5155 return 1;
5156 }
5157
5158 static int runlevel_parse_argv(int argc, char *argv[]) {
5159
5160 enum {
5161 ARG_HELP = 0x100,
5162 };
5163
5164 static const struct option options[] = {
5165 { "help", no_argument, NULL, ARG_HELP },
5166 { NULL, 0, NULL, 0 }
5167 };
5168
5169 int c;
5170
5171 assert(argc >= 0);
5172 assert(argv);
5173
5174 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5175 switch (c) {
5176
5177 case ARG_HELP:
5178 runlevel_help();
5179 return 0;
5180
5181 case '?':
5182 return -EINVAL;
5183
5184 default:
5185 log_error("Unknown option code '%c'.", c);
5186 return -EINVAL;
5187 }
5188 }
5189
5190 if (optind < argc) {
5191 log_error("Too many arguments.");
5192 return -EINVAL;
5193 }
5194
5195 return 1;
5196 }
5197
5198 static int parse_argv(int argc, char *argv[]) {
5199 assert(argc >= 0);
5200 assert(argv);
5201
5202 if (program_invocation_short_name) {
5203
5204 if (strstr(program_invocation_short_name, "halt")) {
5205 arg_action = ACTION_HALT;
5206 return halt_parse_argv(argc, argv);
5207 } else if (strstr(program_invocation_short_name, "poweroff")) {
5208 arg_action = ACTION_POWEROFF;
5209 return halt_parse_argv(argc, argv);
5210 } else if (strstr(program_invocation_short_name, "reboot")) {
5211 if (kexec_loaded())
5212 arg_action = ACTION_KEXEC;
5213 else
5214 arg_action = ACTION_REBOOT;
5215 return halt_parse_argv(argc, argv);
5216 } else if (strstr(program_invocation_short_name, "shutdown")) {
5217 arg_action = ACTION_POWEROFF;
5218 return shutdown_parse_argv(argc, argv);
5219 } else if (strstr(program_invocation_short_name, "init")) {
5220
5221 if (sd_booted() > 0) {
5222 arg_action = ACTION_INVALID;
5223 return telinit_parse_argv(argc, argv);
5224 } else {
5225 /* Hmm, so some other init system is
5226 * running, we need to forward this
5227 * request to it. For now we simply
5228 * guess that it is Upstart. */
5229
5230 execv("/lib/upstart/telinit", argv);
5231
5232 log_error("Couldn't find an alternative telinit implementation to spawn.");
5233 return -EIO;
5234 }
5235
5236 } else if (strstr(program_invocation_short_name, "runlevel")) {
5237 arg_action = ACTION_RUNLEVEL;
5238 return runlevel_parse_argv(argc, argv);
5239 }
5240 }
5241
5242 arg_action = ACTION_SYSTEMCTL;
5243 return systemctl_parse_argv(argc, argv);
5244 }
5245
5246 static int action_to_runlevel(void) {
5247
5248 static const char table[_ACTION_MAX] = {
5249 [ACTION_HALT] = '0',
5250 [ACTION_POWEROFF] = '0',
5251 [ACTION_REBOOT] = '6',
5252 [ACTION_RUNLEVEL2] = '2',
5253 [ACTION_RUNLEVEL3] = '3',
5254 [ACTION_RUNLEVEL4] = '4',
5255 [ACTION_RUNLEVEL5] = '5',
5256 [ACTION_RESCUE] = '1'
5257 };
5258
5259 assert(arg_action < _ACTION_MAX);
5260
5261 return table[arg_action];
5262 }
5263
5264 static int talk_upstart(void) {
5265 DBusMessage *m = NULL, *reply = NULL;
5266 DBusError error;
5267 int previous, rl, r;
5268 char
5269 env1_buf[] = "RUNLEVEL=X",
5270 env2_buf[] = "PREVLEVEL=X";
5271 char *env1 = env1_buf, *env2 = env2_buf;
5272 const char *emit = "runlevel";
5273 dbus_bool_t b_false = FALSE;
5274 DBusMessageIter iter, sub;
5275 DBusConnection *bus;
5276
5277 dbus_error_init(&error);
5278
5279 if (!(rl = action_to_runlevel()))
5280 return 0;
5281
5282 if (utmp_get_runlevel(&previous, NULL) < 0)
5283 previous = 'N';
5284
5285 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5286 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5287 r = 0;
5288 goto finish;
5289 }
5290
5291 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5292 r = -EIO;
5293 goto finish;
5294 }
5295
5296 if ((r = bus_check_peercred(bus)) < 0) {
5297 log_error("Failed to verify owner of bus.");
5298 goto finish;
5299 }
5300
5301 if (!(m = dbus_message_new_method_call(
5302 "com.ubuntu.Upstart",
5303 "/com/ubuntu/Upstart",
5304 "com.ubuntu.Upstart0_6",
5305 "EmitEvent"))) {
5306
5307 log_error("Could not allocate message.");
5308 r = -ENOMEM;
5309 goto finish;
5310 }
5311
5312 dbus_message_iter_init_append(m, &iter);
5313
5314 env1_buf[sizeof(env1_buf)-2] = rl;
5315 env2_buf[sizeof(env2_buf)-2] = previous;
5316
5317 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5318 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5319 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5320 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5321 !dbus_message_iter_close_container(&iter, &sub) ||
5322 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5323 log_error("Could not append arguments to message.");
5324 r = -ENOMEM;
5325 goto finish;
5326 }
5327
5328 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5329
5330 if (error_is_no_service(&error)) {
5331 r = -EADDRNOTAVAIL;
5332 goto finish;
5333 }
5334
5335 log_error("Failed to issue method call: %s", bus_error_message(&error));
5336 r = -EIO;
5337 goto finish;
5338 }
5339
5340 r = 1;
5341
5342 finish:
5343 if (m)
5344 dbus_message_unref(m);
5345
5346 if (reply)
5347 dbus_message_unref(reply);
5348
5349 if (bus) {
5350 dbus_connection_flush(bus);
5351 dbus_connection_close(bus);
5352 dbus_connection_unref(bus);
5353 }
5354
5355 dbus_error_free(&error);
5356
5357 return r;
5358 }
5359
5360 static int talk_initctl(void) {
5361 struct init_request request;
5362 int r, fd;
5363 char rl;
5364
5365 if (!(rl = action_to_runlevel()))
5366 return 0;
5367
5368 zero(request);
5369 request.magic = INIT_MAGIC;
5370 request.sleeptime = 0;
5371 request.cmd = INIT_CMD_RUNLVL;
5372 request.runlevel = rl;
5373
5374 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5375
5376 if (errno == ENOENT)
5377 return 0;
5378
5379 log_error("Failed to open "INIT_FIFO": %m");
5380 return -errno;
5381 }
5382
5383 errno = 0;
5384 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5385 close_nointr_nofail(fd);
5386
5387 if (r < 0) {
5388 log_error("Failed to write to "INIT_FIFO": %m");
5389 return errno ? -errno : -EIO;
5390 }
5391
5392 return 1;
5393 }
5394
5395 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5396
5397 static const struct {
5398 const char* verb;
5399 const enum {
5400 MORE,
5401 LESS,
5402 EQUAL
5403 } argc_cmp;
5404 const int argc;
5405 int (* const dispatch)(DBusConnection *bus, char **args);
5406 } verbs[] = {
5407 { "list-units", LESS, 1, list_units },
5408 { "list-unit-files", EQUAL, 1, list_unit_files },
5409 { "list-jobs", EQUAL, 1, list_jobs },
5410 { "clear-jobs", EQUAL, 1, daemon_reload },
5411 { "load", MORE, 2, load_unit },
5412 { "cancel", MORE, 2, cancel_job },
5413 { "start", MORE, 2, start_unit },
5414 { "stop", MORE, 2, start_unit },
5415 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5416 { "reload", MORE, 2, start_unit },
5417 { "restart", MORE, 2, start_unit },
5418 { "try-restart", MORE, 2, start_unit },
5419 { "reload-or-restart", MORE, 2, start_unit },
5420 { "reload-or-try-restart", MORE, 2, start_unit },
5421 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5422 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5423 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5424 { "isolate", EQUAL, 2, start_unit },
5425 { "kill", MORE, 2, kill_unit },
5426 { "is-active", MORE, 2, check_unit },
5427 { "check", MORE, 2, check_unit },
5428 { "show", MORE, 1, show },
5429 { "status", MORE, 2, show },
5430 { "help", MORE, 2, show },
5431 { "dump", EQUAL, 1, dump },
5432 { "dot", EQUAL, 1, dot },
5433 { "snapshot", LESS, 2, snapshot },
5434 { "delete", MORE, 2, delete_snapshot },
5435 { "daemon-reload", EQUAL, 1, daemon_reload },
5436 { "daemon-reexec", EQUAL, 1, daemon_reload },
5437 { "show-environment", EQUAL, 1, show_enviroment },
5438 { "set-environment", MORE, 2, set_environment },
5439 { "unset-environment", MORE, 2, set_environment },
5440 { "halt", EQUAL, 1, start_special },
5441 { "poweroff", EQUAL, 1, start_special },
5442 { "reboot", EQUAL, 1, start_special },
5443 { "kexec", EQUAL, 1, start_special },
5444 { "suspend", EQUAL, 1, start_special },
5445 { "hibernate", EQUAL, 1, start_special },
5446 { "default", EQUAL, 1, start_special },
5447 { "rescue", EQUAL, 1, start_special },
5448 { "emergency", EQUAL, 1, start_special },
5449 { "exit", EQUAL, 1, start_special },
5450 { "reset-failed", MORE, 1, reset_failed },
5451 { "enable", MORE, 2, enable_unit },
5452 { "disable", MORE, 2, enable_unit },
5453 { "is-enabled", MORE, 2, unit_is_enabled },
5454 { "reenable", MORE, 2, enable_unit },
5455 { "preset", MORE, 2, enable_unit },
5456 { "mask", MORE, 2, enable_unit },
5457 { "unmask", MORE, 2, enable_unit },
5458 { "link", MORE, 2, enable_unit },
5459 { "switch-root", MORE, 2, switch_root },
5460 };
5461
5462 int left;
5463 unsigned i;
5464
5465 assert(argc >= 0);
5466 assert(argv);
5467 assert(error);
5468
5469 left = argc - optind;
5470
5471 if (left <= 0)
5472 /* Special rule: no arguments means "list-units" */
5473 i = 0;
5474 else {
5475 if (streq(argv[optind], "help") && !argv[optind+1]) {
5476 log_error("This command expects one or more "
5477 "unit names. Did you mean --help?");
5478 return -EINVAL;
5479 }
5480
5481 for (i = 0; i < ELEMENTSOF(verbs); i++)
5482 if (streq(argv[optind], verbs[i].verb))
5483 break;
5484
5485 if (i >= ELEMENTSOF(verbs)) {
5486 log_error("Unknown operation '%s'.", argv[optind]);
5487 return -EINVAL;
5488 }
5489 }
5490
5491 switch (verbs[i].argc_cmp) {
5492
5493 case EQUAL:
5494 if (left != verbs[i].argc) {
5495 log_error("Invalid number of arguments.");
5496 return -EINVAL;
5497 }
5498
5499 break;
5500
5501 case MORE:
5502 if (left < verbs[i].argc) {
5503 log_error("Too few arguments.");
5504 return -EINVAL;
5505 }
5506
5507 break;
5508
5509 case LESS:
5510 if (left > verbs[i].argc) {
5511 log_error("Too many arguments.");
5512 return -EINVAL;
5513 }
5514
5515 break;
5516
5517 default:
5518 assert_not_reached("Unknown comparison operator.");
5519 }
5520
5521 /* Require a bus connection for all operations but
5522 * enable/disable */
5523 if (!streq(verbs[i].verb, "enable") &&
5524 !streq(verbs[i].verb, "disable") &&
5525 !streq(verbs[i].verb, "is-enabled") &&
5526 !streq(verbs[i].verb, "list-unit-files") &&
5527 !streq(verbs[i].verb, "reenable") &&
5528 !streq(verbs[i].verb, "preset") &&
5529 !streq(verbs[i].verb, "mask") &&
5530 !streq(verbs[i].verb, "unmask") &&
5531 !streq(verbs[i].verb, "link")) {
5532
5533 if (running_in_chroot() > 0) {
5534 log_info("Running in chroot, ignoring request.");
5535 return 0;
5536 }
5537
5538 if (((!streq(verbs[i].verb, "reboot") &&
5539 !streq(verbs[i].verb, "halt") &&
5540 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5541 log_error("Failed to get D-Bus connection: %s",
5542 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5543 return -EIO;
5544 }
5545
5546 } else {
5547
5548 if (!bus && !avoid_bus()) {
5549 log_error("Failed to get D-Bus connection: %s",
5550 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5551 return -EIO;
5552 }
5553 }
5554
5555 return verbs[i].dispatch(bus, argv + optind);
5556 }
5557
5558 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5559 int fd;
5560 struct msghdr msghdr;
5561 struct iovec iovec[2];
5562 union sockaddr_union sockaddr;
5563 struct sd_shutdown_command c;
5564
5565 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5566 if (fd < 0)
5567 return -errno;
5568
5569 zero(c);
5570 c.usec = t;
5571 c.mode = mode;
5572 c.dry_run = dry_run;
5573 c.warn_wall = warn;
5574
5575 zero(sockaddr);
5576 sockaddr.sa.sa_family = AF_UNIX;
5577 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5578
5579 zero(msghdr);
5580 msghdr.msg_name = &sockaddr;
5581 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5582
5583 zero(iovec);
5584 iovec[0].iov_base = (char*) &c;
5585 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5586
5587 if (isempty(message))
5588 msghdr.msg_iovlen = 1;
5589 else {
5590 iovec[1].iov_base = (char*) message;
5591 iovec[1].iov_len = strlen(message);
5592 msghdr.msg_iovlen = 2;
5593 }
5594 msghdr.msg_iov = iovec;
5595
5596 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5597 close_nointr_nofail(fd);
5598 return -errno;
5599 }
5600
5601 close_nointr_nofail(fd);
5602 return 0;
5603 }
5604
5605 static int reload_with_fallback(DBusConnection *bus) {
5606
5607 if (bus) {
5608 /* First, try systemd via D-Bus. */
5609 if (daemon_reload(bus, NULL) >= 0)
5610 return 0;
5611 }
5612
5613 /* Nothing else worked, so let's try signals */
5614 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5615
5616 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5617 log_error("kill() failed: %m");
5618 return -errno;
5619 }
5620
5621 return 0;
5622 }
5623
5624 static int start_with_fallback(DBusConnection *bus) {
5625
5626 if (bus) {
5627 /* First, try systemd via D-Bus. */
5628 if (start_unit(bus, NULL) >= 0)
5629 goto done;
5630 }
5631
5632 /* Hmm, talking to systemd via D-Bus didn't work. Then
5633 * let's try to talk to Upstart via D-Bus. */
5634 if (talk_upstart() > 0)
5635 goto done;
5636
5637 /* Nothing else worked, so let's try
5638 * /dev/initctl */
5639 if (talk_initctl() > 0)
5640 goto done;
5641
5642 log_error("Failed to talk to init daemon.");
5643 return -EIO;
5644
5645 done:
5646 warn_wall(arg_action);
5647 return 0;
5648 }
5649
5650 static void halt_now(enum action a) {
5651
5652 /* Make sure C-A-D is handled by the kernel from this
5653 * point on... */
5654 reboot(RB_ENABLE_CAD);
5655
5656 switch (a) {
5657
5658 case ACTION_HALT:
5659 log_info("Halting.");
5660 reboot(RB_HALT_SYSTEM);
5661 break;
5662
5663 case ACTION_POWEROFF:
5664 log_info("Powering off.");
5665 reboot(RB_POWER_OFF);
5666 break;
5667
5668 case ACTION_REBOOT:
5669 log_info("Rebooting.");
5670 reboot(RB_AUTOBOOT);
5671 break;
5672
5673 default:
5674 assert_not_reached("Unknown halt action.");
5675 }
5676
5677 assert_not_reached("Uh? This shouldn't happen.");
5678 }
5679
5680 static int halt_main(DBusConnection *bus) {
5681 int r;
5682
5683 if (geteuid() != 0) {
5684 /* Try logind if we are a normal user and no special
5685 * mode applies. Maybe PolicyKit allows us to shutdown
5686 * the machine. */
5687
5688 if (arg_when <= 0 &&
5689 !arg_dry &&
5690 !arg_force &&
5691 (arg_action == ACTION_POWEROFF ||
5692 arg_action == ACTION_REBOOT)) {
5693 r = reboot_with_logind(bus, arg_action);
5694 if (r >= 0)
5695 return r;
5696 }
5697
5698 log_error("Must be root.");
5699 return -EPERM;
5700 }
5701
5702 if (arg_when > 0) {
5703 char *m;
5704
5705 m = strv_join(arg_wall, " ");
5706 r = send_shutdownd(arg_when,
5707 arg_action == ACTION_HALT ? 'H' :
5708 arg_action == ACTION_POWEROFF ? 'P' :
5709 arg_action == ACTION_KEXEC ? 'K' :
5710 'r',
5711 arg_dry,
5712 !arg_no_wall,
5713 m);
5714 free(m);
5715
5716 if (r < 0)
5717 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5718 else {
5719 char date[FORMAT_TIMESTAMP_MAX];
5720
5721 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5722 format_timestamp(date, sizeof(date), arg_when));
5723 return 0;
5724 }
5725 }
5726
5727 if (!arg_dry && !arg_force)
5728 return start_with_fallback(bus);
5729
5730 if (!arg_no_wtmp) {
5731 if (sd_booted() > 0)
5732 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5733 else {
5734 r = utmp_put_shutdown();
5735 if (r < 0)
5736 log_warning("Failed to write utmp record: %s", strerror(-r));
5737 }
5738 }
5739
5740 if (!arg_no_sync)
5741 sync();
5742
5743 if (arg_dry)
5744 return 0;
5745
5746 halt_now(arg_action);
5747 /* We should never reach this. */
5748 return -ENOSYS;
5749 }
5750
5751 static int runlevel_main(void) {
5752 int r, runlevel, previous;
5753
5754 r = utmp_get_runlevel(&runlevel, &previous);
5755 if (r < 0) {
5756 puts("unknown");
5757 return r;
5758 }
5759
5760 printf("%c %c\n",
5761 previous <= 0 ? 'N' : previous,
5762 runlevel <= 0 ? 'N' : runlevel);
5763
5764 return 0;
5765 }
5766
5767 int main(int argc, char*argv[]) {
5768 int r, retval = EXIT_FAILURE;
5769 DBusConnection *bus = NULL;
5770 DBusError error;
5771
5772 dbus_error_init(&error);
5773
5774 log_parse_environment();
5775 log_open();
5776
5777 r = parse_argv(argc, argv);
5778 if (r < 0)
5779 goto finish;
5780 else if (r == 0) {
5781 retval = EXIT_SUCCESS;
5782 goto finish;
5783 }
5784
5785 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5786 * let's shortcut this */
5787 if (arg_action == ACTION_RUNLEVEL) {
5788 r = runlevel_main();
5789 retval = r < 0 ? EXIT_FAILURE : r;
5790 goto finish;
5791 }
5792
5793 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5794 log_info("Running in chroot, ignoring request.");
5795 retval = 0;
5796 goto finish;
5797 }
5798
5799 if (!avoid_bus()) {
5800 if (arg_transport == TRANSPORT_NORMAL)
5801 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5802 else if (arg_transport == TRANSPORT_POLKIT) {
5803 bus_connect_system_polkit(&bus, &error);
5804 private_bus = false;
5805 } else if (arg_transport == TRANSPORT_SSH) {
5806 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5807 private_bus = false;
5808 } else
5809 assert_not_reached("Uh, invalid transport...");
5810 }
5811
5812 switch (arg_action) {
5813
5814 case ACTION_SYSTEMCTL:
5815 r = systemctl_main(bus, argc, argv, &error);
5816 break;
5817
5818 case ACTION_HALT:
5819 case ACTION_POWEROFF:
5820 case ACTION_REBOOT:
5821 case ACTION_KEXEC:
5822 r = halt_main(bus);
5823 break;
5824
5825 case ACTION_RUNLEVEL2:
5826 case ACTION_RUNLEVEL3:
5827 case ACTION_RUNLEVEL4:
5828 case ACTION_RUNLEVEL5:
5829 case ACTION_RESCUE:
5830 case ACTION_EMERGENCY:
5831 case ACTION_DEFAULT:
5832 r = start_with_fallback(bus);
5833 break;
5834
5835 case ACTION_RELOAD:
5836 case ACTION_REEXEC:
5837 r = reload_with_fallback(bus);
5838 break;
5839
5840 case ACTION_CANCEL_SHUTDOWN:
5841 r = send_shutdownd(0, 0, false, false, NULL);
5842 break;
5843
5844 case ACTION_INVALID:
5845 case ACTION_RUNLEVEL:
5846 default:
5847 assert_not_reached("Unknown action");
5848 }
5849
5850 retval = r < 0 ? EXIT_FAILURE : r;
5851
5852 finish:
5853 if (bus) {
5854 dbus_connection_flush(bus);
5855 dbus_connection_close(bus);
5856 dbus_connection_unref(bus);
5857 }
5858
5859 dbus_error_free(&error);
5860
5861 dbus_shutdown();
5862
5863 strv_free(arg_property);
5864
5865 pager_close();
5866 ask_password_agent_close();
5867 polkit_agent_close();
5868
5869 return retval;
5870 }
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