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[thirdparty/systemd.git] / src / systemctl.c
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7e4249b9
LP		 1/*-*- Mode: C; c-basic-offset: 8 -*-*/
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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
e4b61340 22#include <sys/reboot.h>
7e4249b9
LP		 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>
eb22ac37 31#include <fcntl.h>
f1c5860b 32#include <sys/socket.h>
7e4249b9
LP		 33
34#include <dbus/dbus.h>
35
36#include "log.h"
37#include "util.h"
38#include "macro.h"
39#include "set.h"
e4b61340 40#include "utmp-wtmp.h"
514f4ef5 41#include "special.h"
eb22ac37 42#include "initreq.h"
e4a9373f 43#include "strv.h"
9a1ac7b9 44#include "dbus-common.h"
ab35fb1b 45#include "cgroup-show.h"
c6c18be3 46#include "cgroup-util.h"
582a507f 47#include "list.h"
7e4249b9
LP		 48
49static const char *arg_type = NULL;
48220598 50static const char *arg_property = NULL;
7e4249b9 51static bool arg_all = false;
90d473a1 52static bool arg_fail = false;
7e4249b9 53static bool arg_session = false;
6e905d93 54static bool arg_no_block = false;
e4b61340
LP		 55static bool arg_immediate = false;
56static bool arg_no_wtmp = false;
57static bool arg_no_sync = false;
514f4ef5 58static bool arg_no_wall = false;
e4b61340 59static bool arg_dry = false;
0183528f 60static bool arg_quiet = false;
e4b61340 61static char **arg_wall = NULL;
4445a875 62static enum action {
e4b61340
LP		 63 ACTION_INVALID,
64 ACTION_SYSTEMCTL,
65 ACTION_HALT,
66 ACTION_POWEROFF,
67 ACTION_REBOOT,
e4b61340
LP		 68 ACTION_RUNLEVEL2,
69 ACTION_RUNLEVEL3,
70 ACTION_RUNLEVEL4,
71 ACTION_RUNLEVEL5,
72 ACTION_RESCUE,
514f4ef5
LP		 73 ACTION_EMERGENCY,
74 ACTION_DEFAULT,
e4b61340
LP		 75 ACTION_RELOAD,
76 ACTION_REEXEC,
77 ACTION_RUNLEVEL,
78 _ACTION_MAX
79} arg_action = ACTION_SYSTEMCTL;
4445a875
LP		 80static enum dot {
81 DOT_ALL,
82 DOT_ORDER,
83 DOT_REQUIRE
84} arg_dot = DOT_ALL;
e4b61340 85
f4579ce7
LP		 86static bool private_bus = false;
87
e4b61340
LP		 88static bool error_is_no_service(DBusError *error) {
89
514f4ef5
LP		 90 assert(error);
91
e4b61340
LP		 92 if (!dbus_error_is_set(error))
93 return false;
94
95 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
96 return true;
97
98 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
99 return true;
100
101 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
102}
7e4249b9
LP		 103
104static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
105
514f4ef5
LP		 106 assert(iter);
107 assert(data);
108
7e4249b9
LP		 109 if (dbus_message_iter_get_arg_type(iter) != type)
110 return -EIO;
111
112 dbus_message_iter_get_basic(iter, data);
113
114 if (!dbus_message_iter_next(iter) != !next)
115 return -EIO;
116
117 return 0;
118}
119
514f4ef5 120static void warn_wall(enum action action) {
ef2f1067 121 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 122 [ACTION_HALT] = "The system is going down for system halt NOW!",
123 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
124 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
125 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
126 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 127 };
128
514f4ef5
LP		 129 if (arg_no_wall)
130 return;
131
e4a9373f
LP		 132 if (arg_wall) {
133 char *p;
134
135 if (!(p = strv_join(arg_wall, " "))) {
136 log_error("Failed to join strings.");
137 return;
138 }
139
140 if (*p) {
141 utmp_wall(p);
142 free(p);
143 return;
144 }
145
146 free(p);
147 }
148
514f4ef5 149 if (!table[action])
ef2f1067
LP		 150 return;
151
514f4ef5 152 utmp_wall(table[action]);
ef2f1067
LP		 153}
154
7e4249b9
LP		 155static int list_units(DBusConnection *bus, char **args, unsigned n) {
156 DBusMessage *m = NULL, *reply = NULL;
157 DBusError error;
158 int r;
159 DBusMessageIter iter, sub, sub2;
160 unsigned k = 0;
161
162 dbus_error_init(&error);
163
514f4ef5
LP		 164 assert(bus);
165
7e4249b9
LP		 166 if (!(m = dbus_message_new_method_call(
167 "org.freedesktop.systemd1",
168 "/org/freedesktop/systemd1",
169 "org.freedesktop.systemd1.Manager",
170 "ListUnits"))) {
171 log_error("Could not allocate message.");
172 return -ENOMEM;
173 }
174
175 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
176 log_error("Failed to issue method call: %s", error.message);
177 r = -EIO;
178 goto finish;
179 }
180
181 if (!dbus_message_iter_init(reply, &iter) ||
182 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
183 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
184 log_error("Failed to parse reply.");
185 r = -EIO;
186 goto finish;
187 }
188
189 dbus_message_iter_recurse(&iter, &sub);
190
191 printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION");
192
193 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4445a875 194 const char *id, *description, *load_state, *active_state, *sub_state, *unit_path, *job_type, *job_path, *dot;
7e4249b9
LP		 195 uint32_t job_id;
196
197 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
198 log_error("Failed to parse reply.");
199 r = -EIO;
200 goto finish;
201 }
202
203 dbus_message_iter_recurse(&sub, &sub2);
204
205 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
206 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
207 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
208 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
209 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4445a875 210 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0 ||
7e4249b9
LP		 211 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &job_id, true) < 0 ||
212 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &job_type, true) < 0 ||
213 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, false) < 0) {
214 log_error("Failed to parse reply.");
215 r = -EIO;
216 goto finish;
217 }
218
219 if ((!arg_type || ((dot = strrchr(id, '.')) &&
220 streq(dot+1, arg_type))) &&
0ff3dea7 221 (arg_all || !streq(active_state, "inactive") || job_id > 0)) {
7e4249b9
LP		 222
223 int a = 0, b = 0;
224
e0376b17
LP		 225 if (streq(active_state, "maintenance"))
226 fputs(ANSI_HIGHLIGHT_ON, stdout);
227
7e4249b9
LP		 228 printf("%-45s %-6s %-12s %-12s%n", id, load_state, active_state, sub_state, &a);
229
230 if (job_id != 0)
0ff3dea7 231 printf(" => %-12s%n", job_type, &b);
7e4249b9 232 else
e0376b17 233 b = 1 + 15;
7e4249b9
LP		 234
235 if (a + b + 2 < columns()) {
236 if (job_id == 0)
237 printf(" ");
238
e0376b17 239 printf(" %.*s", columns() - a - b - 2, description);
7e4249b9
LP		 240 }
241
e0376b17
LP		 242 if (streq(active_state, "maintenance"))
243 fputs(ANSI_HIGHLIGHT_OFF, stdout);
244
7e4249b9
LP		 245 fputs("\n", stdout);
246 k++;
247 }
248
249 dbus_message_iter_next(&sub);
250 }
251
0ff3dea7
LP		 252 printf("\nLOAD = Load State, reflects whether the unit configuration was properly loaded.\n"
253 "ACTIVE = Active State, the high-level unit activation state, i.e. generalization of the substate.\n"
254 "SUB = Substate, the low-level unit activation state, possible values depend on unit type.\n"
255 "JOB = Job, shows scheduled jobs for the unit.\n");
256
7e4249b9
LP		 257 if (arg_all)
258 printf("\n%u units listed.\n", k);
259 else
4445a875
LP		 260 printf("\n%u units listed. Pass --all to see inactive units, too.\n", k);
261
262 r = 0;
263
264finish:
265 if (m)
266 dbus_message_unref(m);
267
268 if (reply)
269 dbus_message_unref(reply);
270
271 dbus_error_free(&error);
272
273 return r;
274}
275
276static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
277 static const char * const colors[] = {
278 "Requires", "[color=\"black\"]",
279 "RequiresOverridable", "[color=\"black\"]",
280 "Requisite", "[color=\"darkblue\"]",
281 "RequisiteOverridable", "[color=\"darkblue\"]",
282 "Wants", "[color=\"darkgrey\"]",
283 "Conflicts", "[color=\"red\"]",
284 "After", "[color=\"green\"]"
285 };
286
287 const char *c = NULL;
288 unsigned i;
289
290 assert(name);
291 assert(prop);
292 assert(iter);
293
294 for (i = 0; i < ELEMENTSOF(colors); i += 2)
295 if (streq(colors[i], prop)) {
296 c = colors[i+1];
297 break;
298 }
299
300 if (!c)
301 return 0;
302
303 if (arg_dot != DOT_ALL)
304 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
305 return 0;
306
307 switch (dbus_message_iter_get_arg_type(iter)) {
308
309 case DBUS_TYPE_ARRAY:
310
311 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
312 DBusMessageIter sub;
313
314 dbus_message_iter_recurse(iter, &sub);
315
316 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
317 const char *s;
318
319 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
320 dbus_message_iter_get_basic(&sub, &s);
321 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
322
323 dbus_message_iter_next(&sub);
324 }
325
326 return 0;
327 }
328 }
329
330 return 0;
331}
332
333static int dot_one(DBusConnection *bus, const char *name, const char *path) {
334 DBusMessage *m = NULL, *reply = NULL;
335 const char *interface = "org.freedesktop.systemd1.Unit";
336 int r;
337 DBusError error;
338 DBusMessageIter iter, sub, sub2, sub3;
339
340 assert(bus);
341 assert(path);
342
343 dbus_error_init(&error);
344
345 if (!(m = dbus_message_new_method_call(
346 "org.freedesktop.systemd1",
347 path,
348 "org.freedesktop.DBus.Properties",
349 "GetAll"))) {
350 log_error("Could not allocate message.");
351 r = -ENOMEM;
352 goto finish;
353 }
354
355 if (!dbus_message_append_args(m,
356 DBUS_TYPE_STRING, &interface,
357 DBUS_TYPE_INVALID)) {
358 log_error("Could not append arguments to message.");
359 r = -ENOMEM;
360 goto finish;
361 }
362
363 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
364 log_error("Failed to issue method call: %s", error.message);
365 r = -EIO;
366 goto finish;
367 }
368
369 if (!dbus_message_iter_init(reply, &iter) ||
370 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
371 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
372 log_error("Failed to parse reply.");
373 r = -EIO;
374 goto finish;
375 }
376
377 dbus_message_iter_recurse(&iter, &sub);
378
379 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
380 const char *prop;
381
382 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
383 log_error("Failed to parse reply.");
384 r = -EIO;
385 goto finish;
386 }
387
388 dbus_message_iter_recurse(&sub, &sub2);
389
390 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
391 log_error("Failed to parse reply.");
392 r = -EIO;
393 goto finish;
394 }
395
396 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
397 log_error("Failed to parse reply.");
398 r = -EIO;
399 goto finish;
400 }
401
402 dbus_message_iter_recurse(&sub2, &sub3);
403
404 if (dot_one_property(name, prop, &sub3)) {
405 log_error("Failed to parse reply.");
406 r = -EIO;
407 goto finish;
408 }
409
410 dbus_message_iter_next(&sub);
411 }
412
413finish:
414 if (m)
415 dbus_message_unref(m);
416
417 if (reply)
418 dbus_message_unref(reply);
419
420 dbus_error_free(&error);
421
422 return r;
423}
424
425static int dot(DBusConnection *bus, char **args, unsigned n) {
426 DBusMessage *m = NULL, *reply = NULL;
427 DBusError error;
428 int r;
429 DBusMessageIter iter, sub, sub2;
430
431 dbus_error_init(&error);
432
433 assert(bus);
434
435 if (!(m = dbus_message_new_method_call(
436 "org.freedesktop.systemd1",
437 "/org/freedesktop/systemd1",
438 "org.freedesktop.systemd1.Manager",
439 "ListUnits"))) {
440 log_error("Could not allocate message.");
441 return -ENOMEM;
442 }
443
444 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
445 log_error("Failed to issue method call: %s", error.message);
446 r = -EIO;
447 goto finish;
448 }
449
450 if (!dbus_message_iter_init(reply, &iter) ||
451 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
452 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
453 log_error("Failed to parse reply.");
454 r = -EIO;
455 goto finish;
456 }
457
458 printf("digraph systemd {\n");
459
460 dbus_message_iter_recurse(&iter, &sub);
461 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
462 const char *id, *description, *load_state, *active_state, *sub_state, *unit_path;
463
464 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
465 log_error("Failed to parse reply.");
466 r = -EIO;
467 goto finish;
468 }
469
470 dbus_message_iter_recurse(&sub, &sub2);
471
472 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
473 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
474 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
475 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
476 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
477 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
478 log_error("Failed to parse reply.");
479 r = -EIO;
480 goto finish;
481 }
482
483 if ((r = dot_one(bus, id, unit_path)) < 0)
484 goto finish;
485
486 /* printf("\t\"%s\";\n", id); */
487 dbus_message_iter_next(&sub);
488 }
489
490 printf("}\n");
491
492 log_info(" Color legend: black = Requires\n"
493 " dark blue = Requisite\n"
494 " dark grey = Wants\n"
495 " red = Conflicts\n"
496 " green = After\n");
497
498 if (isatty(fileno(stdout)))
499 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
500 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 501
502 r = 0;
503
504finish:
505 if (m)
506 dbus_message_unref(m);
507
508 if (reply)
509 dbus_message_unref(reply);
510
511 dbus_error_free(&error);
512
513 return r;
514}
515
516static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
517 DBusMessage *m = NULL, *reply = NULL;
518 DBusError error;
519 int r;
520 DBusMessageIter iter, sub, sub2;
521 unsigned k = 0;
522
523 dbus_error_init(&error);
524
514f4ef5
LP		 525 assert(bus);
526
7e4249b9
LP		 527 if (!(m = dbus_message_new_method_call(
528 "org.freedesktop.systemd1",
529 "/org/freedesktop/systemd1",
530 "org.freedesktop.systemd1.Manager",
531 "ListJobs"))) {
532 log_error("Could not allocate message.");
533 return -ENOMEM;
534 }
535
536 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
537 log_error("Failed to issue method call: %s", error.message);
538 r = -EIO;
539 goto finish;
540 }
541
542 if (!dbus_message_iter_init(reply, &iter) ||
543 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
544 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
545 log_error("Failed to parse reply.");
546 r = -EIO;
547 goto finish;
548 }
549
550 dbus_message_iter_recurse(&iter, &sub);
551
552 printf("%4s %-45s %-17s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
553
554 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
555 const char *name, *type, *state, *job_path, *unit_path;
556 uint32_t id;
557
558 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
559 log_error("Failed to parse reply.");
560 r = -EIO;
561 goto finish;
562 }
563
564 dbus_message_iter_recurse(&sub, &sub2);
565
566 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
567 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
568 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
569 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
570 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
571 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
572 log_error("Failed to parse reply.");
573 r = -EIO;
574 goto finish;
575 }
576
577 printf("%4u %-45s %-17s %-7s\n", id, name, type, state);
578 k++;
579
580 dbus_message_iter_next(&sub);
581 }
582
583 printf("\n%u jobs listed.\n", k);
584 r = 0;
585
586finish:
587 if (m)
588 dbus_message_unref(m);
589
590 if (reply)
591 dbus_message_unref(reply);
592
593 dbus_error_free(&error);
594
595 return r;
596}
597
598static int load_unit(DBusConnection *bus, char **args, unsigned n) {
599 DBusMessage *m = NULL, *reply = NULL;
600 DBusError error;
601 int r;
602 unsigned i;
603
604 dbus_error_init(&error);
605
514f4ef5
LP		 606 assert(bus);
607 assert(args);
608
7e4249b9
LP		 609 for (i = 1; i < n; i++) {
610
611 if (!(m = dbus_message_new_method_call(
612 "org.freedesktop.systemd1",
613 "/org/freedesktop/systemd1",
614 "org.freedesktop.systemd1.Manager",
615 "LoadUnit"))) {
616 log_error("Could not allocate message.");
617 r = -ENOMEM;
618 goto finish;
619 }
620
621 if (!dbus_message_append_args(m,
622 DBUS_TYPE_STRING, &args[i],
623 DBUS_TYPE_INVALID)) {
624 log_error("Could not append arguments to message.");
625 r = -ENOMEM;
626 goto finish;
627 }
628
629 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
630 log_error("Failed to issue method call: %s", error.message);
631 r = -EIO;
632 goto finish;
633 }
634
635 dbus_message_unref(m);
636 dbus_message_unref(reply);
637
638 m = reply = NULL;
639 }
640
641 r = 0;
642
643finish:
644 if (m)
645 dbus_message_unref(m);
646
647 if (reply)
648 dbus_message_unref(reply);
649
650 dbus_error_free(&error);
651
652 return r;
653}
654
655static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
656 DBusMessage *m = NULL, *reply = NULL;
657 DBusError error;
658 int r;
659 unsigned i;
660
661 dbus_error_init(&error);
662
514f4ef5
LP		 663 assert(bus);
664 assert(args);
665
7e4249b9
LP		 666 for (i = 1; i < n; i++) {
667 unsigned id;
668 const char *path;
669
670 if (!(m = dbus_message_new_method_call(
671 "org.freedesktop.systemd1",
672 "/org/freedesktop/systemd1",
673 "org.freedesktop.systemd1.Manager",
674 "GetJob"))) {
675 log_error("Could not allocate message.");
676 r = -ENOMEM;
677 goto finish;
678 }
679
680 if ((r = safe_atou(args[i], &id)) < 0) {
681 log_error("Failed to parse job id: %s", strerror(-r));
682 goto finish;
683 }
684
685 assert_cc(sizeof(uint32_t) == sizeof(id));
686 if (!dbus_message_append_args(m,
687 DBUS_TYPE_UINT32, &id,
688 DBUS_TYPE_INVALID)) {
689 log_error("Could not append arguments to message.");
690 r = -ENOMEM;
691 goto finish;
692 }
693
694 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
695 log_error("Failed to issue method call: %s", error.message);
696 r = -EIO;
697 goto finish;
698 }
699
700 if (!dbus_message_get_args(reply, &error,
701 DBUS_TYPE_OBJECT_PATH, &path,
702 DBUS_TYPE_INVALID)) {
703 log_error("Failed to parse reply: %s", error.message);
704 r = -EIO;
705 goto finish;
706 }
707
708 dbus_message_unref(m);
709 if (!(m = dbus_message_new_method_call(
710 "org.freedesktop.systemd1",
711 path,
712 "org.freedesktop.systemd1.Job",
713 "Cancel"))) {
714 log_error("Could not allocate message.");
715 r = -ENOMEM;
716 goto finish;
717 }
718
719 dbus_message_unref(reply);
720 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
721 log_error("Failed to issue method call: %s", error.message);
722 r = -EIO;
723 goto finish;
724 }
725
726 dbus_message_unref(m);
727 dbus_message_unref(reply);
728 m = reply = NULL;
729 }
730
731 r = 0;
732
733finish:
734 if (m)
735 dbus_message_unref(m);
736
737 if (reply)
738 dbus_message_unref(reply);
739
740 dbus_error_free(&error);
741
742 return r;
743}
744
5e374895
LP		 745typedef struct WaitData {
746 Set *set;
747 bool failed;
748} WaitData;
749
7e4249b9
LP		 750static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
751 DBusError error;
5e374895 752 WaitData *d = data;
7e4249b9
LP		 753
754 assert(connection);
755 assert(message);
5e374895 756 assert(d);
7e4249b9
LP		 757
758 dbus_error_init(&error);
759
54165a39
LP		 760 log_debug("Got D-Bus request: %s.%s() on %s",
761 dbus_message_get_interface(message),
762 dbus_message_get_member(message),
763 dbus_message_get_path(message));
7e4249b9
LP		 764
765 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
766 log_error("Warning! D-Bus connection terminated.");
767 dbus_connection_close(connection);
768
769 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
770 uint32_t id;
771 const char *path;
5e374895 772 dbus_bool_t success = true;
7e4249b9
LP		 773
774 if (!dbus_message_get_args(message, &error,
775 DBUS_TYPE_UINT32, &id,
776 DBUS_TYPE_OBJECT_PATH, &path,
5e374895 777 DBUS_TYPE_BOOLEAN, &success,
7e4249b9
LP		 778 DBUS_TYPE_INVALID))
779 log_error("Failed to parse message: %s", error.message);
780 else {
781 char *p;
782
5e374895 783 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 784 free(p);
5e374895
LP		 785
786 if (!success)
787 d->failed = true;
7e4249b9
LP		 788 }
789 }
790
791 dbus_error_free(&error);
792 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
793}
794
479ef5d3 795static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 796 DBusError error;
7e4249b9
LP		 797
798 assert(bus);
7e4249b9 799
f4579ce7
LP		 800 if (private_bus)
801 return 0;
802
7e4249b9 803 dbus_error_init(&error);
7e4249b9
LP		 804 dbus_bus_add_match(bus,
805 "type='signal',"
806 "sender='org.freedesktop.systemd1',"
807 "interface='org.freedesktop.systemd1.Manager',"
808 "member='JobRemoved',"
809 "path='/org/freedesktop/systemd1'",
810 &error);
811
812 if (dbus_error_is_set(&error)) {
813 log_error("Failed to add match: %s", error.message);
a567261a
LP		 814 dbus_error_free(&error);
815 return -EIO;
7e4249b9
LP		 816 }
817
479ef5d3 818 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 819 return 0;
7e4249b9
LP		 820}
821
479ef5d3
LP		 822static int wait_for_jobs(DBusConnection *bus, Set *s) {
823 int r;
5e374895 824 WaitData d;
479ef5d3
LP		 825
826 assert(bus);
827 assert(s);
828
5e374895
LP		 829 zero(d);
830 d.set = s;
831 d.failed = false;
832
833 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 834 log_error("Failed to add filter.");
835 r = -ENOMEM;
836 goto finish;
837 }
838
839 while (!set_isempty(s) &&
840 dbus_connection_read_write_dispatch(bus, -1))
841 ;
842
5e374895
LP		 843 if (!arg_quiet && d.failed)
844 log_error("Job failed, see logs for details.");
845
846 r = d.failed ? -EIO : 0;
479ef5d3
LP		 847
848finish:
849 /* This is slightly dirty, since we don't undo the filter registration. */
850
851 return r;
852}
853
e4b61340
LP		 854static int start_unit_one(
855 DBusConnection *bus,
856 const char *method,
857 const char *name,
858 const char *mode,
859 Set *s) {
7e4249b9 860
7e4249b9
LP		 861 DBusMessage *m = NULL, *reply = NULL;
862 DBusError error;
863 int r;
7e4249b9 864
e4b61340
LP		 865 assert(bus);
866 assert(method);
867 assert(name);
868 assert(mode);
6e905d93 869 assert(arg_no_block || s);
7e4249b9 870
e4b61340 871 dbus_error_init(&error);
479ef5d3 872
7e4249b9
LP		 873 if (!(m = dbus_message_new_method_call(
874 "org.freedesktop.systemd1",
875 "/org/freedesktop/systemd1",
876 "org.freedesktop.systemd1.Manager",
e4b61340 877 method))) {
7e4249b9
LP		 878 log_error("Could not allocate message.");
879 r = -ENOMEM;
880 goto finish;
881 }
882
883 if (!dbus_message_append_args(m,
e4b61340 884 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 885 DBUS_TYPE_STRING, &mode,
886 DBUS_TYPE_INVALID)) {
887 log_error("Could not append arguments to message.");
888 r = -ENOMEM;
889 goto finish;
890 }
891
892 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 893
894 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
895 /* There's always a fallback possible for
896 * legacy actions. */
897 r = 0;
898 goto finish;
899 }
900
7e4249b9
LP		 901 log_error("Failed to issue method call: %s", error.message);
902 r = -EIO;
903 goto finish;
904 }
905
6e905d93 906 if (!arg_no_block) {
7e4249b9 907 const char *path;
e4b61340 908 char *p;
7e4249b9
LP		 909
910 if (!dbus_message_get_args(reply, &error,
911 DBUS_TYPE_OBJECT_PATH, &path,
912 DBUS_TYPE_INVALID)) {
913 log_error("Failed to parse reply: %s", error.message);
914 r = -EIO;
915 goto finish;
916 }
917
7e4249b9
LP		 918 if (!(p = strdup(path))) {
919 log_error("Failed to duplicate path.");
920 r = -ENOMEM;
921 goto finish;
922 }
923
924 if ((r = set_put(s, p)) < 0) {
e4b61340 925 free(p);
7e4249b9
LP		 926 log_error("Failed to add path to set.");
927 goto finish;
928 }
e4b61340 929 }
7e4249b9 930
e4b61340 931 r = 1;
7e4249b9
LP		 932
933finish:
7e4249b9
LP		 934 if (m)
935 dbus_message_unref(m);
936
937 if (reply)
938 dbus_message_unref(reply);
939
940 dbus_error_free(&error);
941
942 return r;
943}
944
514f4ef5
LP		 945static enum action verb_to_action(const char *verb) {
946 if (streq(verb, "halt"))
947 return ACTION_HALT;
948 else if (streq(verb, "poweroff"))
949 return ACTION_POWEROFF;
950 else if (streq(verb, "reboot"))
951 return ACTION_REBOOT;
952 else if (streq(verb, "rescue"))
953 return ACTION_RESCUE;
954 else if (streq(verb, "emergency"))
955 return ACTION_EMERGENCY;
956 else if (streq(verb, "default"))
957 return ACTION_DEFAULT;
958 else
959 return ACTION_INVALID;
960}
961
e4b61340
LP		 962static int start_unit(DBusConnection *bus, char **args, unsigned n) {
963
964 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 965 [ACTION_HALT] = SPECIAL_HALT_TARGET,
966 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
967 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
968 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
969 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
970 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
971 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
972 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 973 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
514f4ef5 974 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
e4b61340
LP		 975 };
976
977 int r;
978 unsigned i;
514f4ef5 979 const char *method, *mode, *one_name;
e4b61340
LP		 980 Set *s = NULL;
981
514f4ef5
LP		 982 assert(bus);
983
e4b61340
LP		 984 if (arg_action == ACTION_SYSTEMCTL) {
985 method =
6f28c033
LP		 986 streq(args[0], "stop") ? "StopUnit" :
987 streq(args[0], "reload") ? "ReloadUnit" :
988 streq(args[0], "restart") ? "RestartUnit" :
989 streq(args[0], "try-restart") ? "TryRestartUnit" :
990 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
991 streq(args[0], "reload-or-try-restart") ? "ReloadOrTryRestartUnit" :
992 "StartUnit";
e4b61340
LP		 993
994 mode =
514f4ef5
LP		 995 (streq(args[0], "isolate") ||
996 streq(args[0], "rescue") ||
997 streq(args[0], "emergency")) ? "isolate" :
90d473a1
LP		 998 arg_fail ? "fail" :
999 "replace";
e4b61340 1000
514f4ef5 1001 one_name = table[verb_to_action(args[0])];
e4b61340 1002
e4b61340
LP		 1003 } else {
1004 assert(arg_action < ELEMENTSOF(table));
1005 assert(table[arg_action]);
1006
1007 method = "StartUnit";
514f4ef5
LP		 1008
1009 mode = (arg_action == ACTION_EMERGENCY ||
1010 arg_action == ACTION_RESCUE) ? "isolate" : "replace";
1011
1012 one_name = table[arg_action];
1013 }
1014
6e905d93 1015 if (!arg_no_block) {
514f4ef5
LP		 1016 if ((r = enable_wait_for_jobs(bus)) < 0) {
1017 log_error("Could not watch jobs: %s", strerror(-r));
1018 goto finish;
1019 }
1020
1021 if (!(s = set_new(string_hash_func, string_compare_func))) {
1022 log_error("Failed to allocate set.");
1023 r = -ENOMEM;
1024 goto finish;
1025 }
e4b61340
LP		 1026 }
1027
1028 r = 0;
1029
514f4ef5
LP		 1030 if (one_name) {
1031 if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
1032 goto finish;
1033 } else {
e4b61340
LP		 1034 for (i = 1; i < n; i++)
1035 if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
1036 goto finish;
e4b61340
LP		 1037 }
1038
6e905d93 1039 if (!arg_no_block)
514f4ef5
LP		 1040 r = wait_for_jobs(bus, s);
1041
e4b61340
LP		 1042finish:
1043 if (s)
1044 set_free_free(s);
1045
1046 return r;
1047}
1048
514f4ef5 1049static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1050 int r;
1051
514f4ef5
LP		 1052 assert(bus);
1053 assert(args);
1054
983d9c90
LP		 1055 r = start_unit(bus, args, n);
1056
1057 if (r >= 0)
1058 warn_wall(verb_to_action(args[0]));
514f4ef5 1059
983d9c90 1060 return r;
514f4ef5
LP		 1061}
1062
0183528f
LP		 1063static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1064 DBusMessage *m = NULL, *reply = NULL;
1065 const char
1066 *interface = "org.freedesktop.systemd1.Unit",
1067 *property = "ActiveState";
1068 int r = -EADDRNOTAVAIL;
1069 DBusError error;
1070 unsigned i;
1071
1072 assert(bus);
1073 assert(args);
1074
1075 dbus_error_init(&error);
1076
1077 for (i = 1; i < n; i++) {
1078 const char *path = NULL;
1079 const char *state;
1080 DBusMessageIter iter, sub;
1081
1082 if (!(m = dbus_message_new_method_call(
1083 "org.freedesktop.systemd1",
1084 "/org/freedesktop/systemd1",
1085 "org.freedesktop.systemd1.Manager",
1086 "GetUnit"))) {
1087 log_error("Could not allocate message.");
1088 r = -ENOMEM;
1089 goto finish;
1090 }
1091
1092 if (!dbus_message_append_args(m,
1093 DBUS_TYPE_STRING, &args[i],
1094 DBUS_TYPE_INVALID)) {
1095 log_error("Could not append arguments to message.");
1096 r = -ENOMEM;
1097 goto finish;
1098 }
1099
1100 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1101
1102 /* Hmm, cannot figure out anything about this unit... */
1103 if (!arg_quiet)
1104 puts("unknown");
1105
ed2d7a44 1106 dbus_error_free(&error);
0183528f
LP		 1107 continue;
1108 }
1109
1110 if (!dbus_message_get_args(reply, &error,
1111 DBUS_TYPE_OBJECT_PATH, &path,
1112 DBUS_TYPE_INVALID)) {
1113 log_error("Failed to parse reply: %s", error.message);
1114 r = -EIO;
1115 goto finish;
1116 }
1117
1118 dbus_message_unref(m);
1119 if (!(m = dbus_message_new_method_call(
1120 "org.freedesktop.systemd1",
1121 path,
1122 "org.freedesktop.DBus.Properties",
1123 "Get"))) {
1124 log_error("Could not allocate message.");
1125 r = -ENOMEM;
1126 goto finish;
1127 }
1128
1129 if (!dbus_message_append_args(m,
1130 DBUS_TYPE_STRING, &interface,
1131 DBUS_TYPE_STRING, &property,
1132 DBUS_TYPE_INVALID)) {
1133 log_error("Could not append arguments to message.");
1134 r = -ENOMEM;
1135 goto finish;
1136 }
1137
1138 dbus_message_unref(reply);
1139 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1140 log_error("Failed to issue method call: %s", error.message);
1141 r = -EIO;
1142 goto finish;
1143 }
1144
1145 if (!dbus_message_iter_init(reply, &iter) ||
1146 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1147 log_error("Failed to parse reply.");
1148 r = -EIO;
1149 goto finish;
1150 }
1151
1152 dbus_message_iter_recurse(&iter, &sub);
1153
1154 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1155 log_error("Failed to parse reply.");
1156 r = -EIO;
1157 goto finish;
1158 }
1159
1160 dbus_message_iter_get_basic(&sub, &state);
1161
1162 if (!arg_quiet)
1163 puts(state);
1164
01b1b079 1165 if (streq(state, "active") || startswith(state, "reloading"))
0183528f
LP		 1166 r = 0;
1167
1168 dbus_message_unref(m);
1169 dbus_message_unref(reply);
1170 m = reply = NULL;
1171 }
1172
1173finish:
1174 if (m)
1175 dbus_message_unref(m);
1176
1177 if (reply)
1178 dbus_message_unref(reply);
1179
1180 dbus_error_free(&error);
1181
1182 return r;
48220598
LP		 1183}
1184
582a507f
LP		 1185typedef struct ExecStatusInfo {
1186 char *path;
1187 char **argv;
1188
b708e7ce
LP		 1189 bool ignore;
1190
582a507f
LP		 1191 usec_t start_timestamp;
1192 usec_t exit_timestamp;
1193 pid_t pid;
1194 int code;
1195 int status;
1196
1197 LIST_FIELDS(struct ExecStatusInfo, exec);
1198} ExecStatusInfo;
1199
1200static void exec_status_info_free(ExecStatusInfo *i) {
1201 assert(i);
1202
1203 free(i->path);
1204 strv_free(i->argv);
1205 free(i);
1206}
1207
1208static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1209 uint64_t start_timestamp, exit_timestamp;
1210 DBusMessageIter sub2, sub3;
1211 const char*path;
1212 unsigned n;
1213 uint32_t pid;
1214 int32_t code, status;
b708e7ce 1215 dbus_bool_t ignore;
582a507f
LP		 1216
1217 assert(i);
1218 assert(i);
1219
1220 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1221 return -EIO;
1222
1223 dbus_message_iter_recurse(sub, &sub2);
1224
1225 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1226 return -EIO;
1227
1228 if (!(i->path = strdup(path)))
1229 return -ENOMEM;
1230
1231 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1232 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1233 return -EIO;
1234
1235 n = 0;
1236 dbus_message_iter_recurse(&sub2, &sub3);
1237 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1238 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1239 dbus_message_iter_next(&sub3);
1240 n++;
1241 }
1242
1243
1244 if (!(i->argv = new0(char*, n+1)))
1245 return -ENOMEM;
1246
1247 n = 0;
1248 dbus_message_iter_recurse(&sub2, &sub3);
1249 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1250 const char *s;
1251
1252 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1253 dbus_message_iter_get_basic(&sub3, &s);
1254 dbus_message_iter_next(&sub3);
1255
1256 if (!(i->argv[n++] = strdup(s)))
1257 return -ENOMEM;
1258 }
1259
1260 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1261 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1262 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1263 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1264 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1265 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1266 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1267 return -EIO;
1268
b708e7ce 1269 i->ignore = ignore;
582a507f
LP		 1270 i->start_timestamp = (usec_t) start_timestamp;
1271 i->exit_timestamp = (usec_t) exit_timestamp;
1272 i->pid = (pid_t) pid;
1273 i->code = code;
1274 i->status = status;
1275
1276 return 0;
1277}
1278
61cbdc4b
LP		 1279typedef struct UnitStatusInfo {
1280 const char *id;
1281 const char *load_state;
1282 const char *active_state;
1283 const char *sub_state;
1284
1285 const char *description;
1286
1287 const char *fragment_path;
1288 const char *default_control_group;
1289
1290 /* Service */
1291 pid_t main_pid;
1292 pid_t control_pid;
1293 const char *status_text;
1294 bool running;
1295
1296 usec_t start_timestamp;
1297 usec_t exit_timestamp;
1298
1299 int exit_code, exit_status;
1300
1301 /* Socket */
1302 unsigned n_accepted;
1303 unsigned n_connections;
b8131a87 1304 bool accept;
61cbdc4b
LP		 1305
1306 /* Device */
1307 const char *sysfs_path;
1308
1309 /* Mount, Automount */
1310 const char *where;
1311
1312 /* Swap */
1313 const char *what;
582a507f
LP		 1314
1315 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1316} UnitStatusInfo;
1317
1318static void print_status_info(UnitStatusInfo *i) {
582a507f
LP		 1319 ExecStatusInfo *p;
1320
61cbdc4b
LP		 1321 assert(i);
1322
1323 /* This shows pretty information about a unit. See
1324 * print_property() for a low-level property printer */
1325
1326 printf("%s", strna(i->id));
1327
1328 if (i->description && !streq_ptr(i->id, i->description))
1329 printf(" - %s", i->description);
1330
1331 printf("\n");
1332
1333 if (i->fragment_path)
1334 printf("\t Loaded: %s (%s)\n", strna(i->load_state), i->fragment_path);
1335 else if (streq_ptr(i->load_state, "failed"))
1336 printf("\t Loaded: " ANSI_HIGHLIGHT_ON "%s" ANSI_HIGHLIGHT_OFF "\n", strna(i->load_state));
1337 else
1338 printf("\t Loaded: %s\n", strna(i->load_state));
1339
582a507f
LP		 1340 if (streq_ptr(i->active_state, "maintenance")) {
1341 if (streq_ptr(i->active_state, i->sub_state))
1342 printf("\t Active: " ANSI_HIGHLIGHT_ON "%s" ANSI_HIGHLIGHT_OFF "\n",
1343 strna(i->active_state));
1344 else
1345 printf("\t Active: " ANSI_HIGHLIGHT_ON "%s (%s)" ANSI_HIGHLIGHT_OFF "\n",
1346 strna(i->active_state),
1347 strna(i->sub_state));
1348 } else {
1349 if (streq_ptr(i->active_state, i->sub_state))
1350 printf("\t Active: %s\n",
1351 strna(i->active_state));
1352 else
1353 printf("\t Active: %s (%s)\n",
1354 strna(i->active_state),
1355 strna(i->sub_state));
1356 }
61cbdc4b
LP		 1357
1358 if (i->sysfs_path)
1359 printf("\t Device: %s\n", i->sysfs_path);
1360 else if (i->where)
1361 printf("\t Where: %s\n", i->where);
1362 else if (i->what)
1363 printf("\t What: %s\n", i->what);
1364
b8131a87 1365 if (i->accept)
61cbdc4b
LP		 1366 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1367
582a507f
LP		 1368 LIST_FOREACH(exec, p, i->exec) {
1369 char *t;
1370
1371 /* Only show exited processes here */
1372 if (p->code == 0)
1373 continue;
1374
1375 t = strv_join(p->argv, " ");
1376 printf("\t Exited: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
1377 free(t);
1378
1379 if (p->code == CLD_EXITED)
1380 printf("status=%i", p->status);
1381 else
1382 printf("signal=%s", signal_to_string(p->status));
1383 printf(")\n");
1384
1385 if (i->main_pid == p->pid &&
1386 i->start_timestamp == p->start_timestamp &&
1387 i->exit_timestamp == p->start_timestamp)
1388 /* Let's not show this twice */
1389 i->main_pid = 0;
1390
1391 if (p->pid == i->control_pid)
1392 i->control_pid = 0;
1393 }
1394
61cbdc4b
LP		 1395 if (i->main_pid > 0 || i->control_pid > 0) {
1396 printf("\t");
1397
1398 if (i->main_pid > 0) {
582a507f 1399 printf(" Main: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1400
1401 if (i->running) {
1402 char *t = NULL;
1403 get_process_name(i->main_pid, &t);
1404 if (t) {
1405 printf(" (%s)", t);
1406 free(t);
1407 }
1408 } else {
1409 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1410
1411 if (i->exit_code == CLD_EXITED)
1412 printf("status=%i", i->exit_status);
1413 else
582a507f 1414 printf("signal=%s", signal_to_string(i->exit_status));
61cbdc4b
LP		 1415 printf(")");
1416 }
1417 }
1418
1419 if (i->main_pid > 0 && i->control_pid > 0)
1420 printf(";");
1421
1422 if (i->control_pid > 0) {
1423 char *t = NULL;
1424
1425 printf(" Control: %u", (unsigned) i->control_pid);
1426
1427 get_process_name(i->control_pid, &t);
1428 if (t) {
1429 printf(" (%s)", t);
1430 free(t);
1431 }
1432 }
1433
1434 printf("\n");
1435 }
1436
17bb7382
LP		 1437 if (i->status_text)
1438 printf("\t Status: \"%s\"\n", i->status_text);
1439
c59760ee 1440 if (i->default_control_group) {
ab35fb1b
LP		 1441 unsigned c;
1442
61cbdc4b 1443 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1444
1445 if ((c = columns()) > 18)
1446 c -= 18;
1447 else
1448 c = 0;
1449
35d2e7ec 1450 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1451 }
61cbdc4b
LP		 1452}
1453
1454static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1455
1456 switch (dbus_message_iter_get_arg_type(iter)) {
1457
1458 case DBUS_TYPE_STRING: {
1459 const char *s;
1460
1461 dbus_message_iter_get_basic(iter, &s);
1462
1463 if (s[0]) {
1464 if (streq(name, "Id"))
1465 i->id = s;
1466 else if (streq(name, "LoadState"))
1467 i->load_state = s;
1468 else if (streq(name, "ActiveState"))
1469 i->active_state = s;
1470 else if (streq(name, "SubState"))
1471 i->sub_state = s;
1472 else if (streq(name, "Description"))
1473 i->description = s;
1474 else if (streq(name, "FragmentPath"))
1475 i->fragment_path = s;
1476 else if (streq(name, "DefaultControlGroup"))
1477 i->default_control_group = s;
1478 else if (streq(name, "StatusText"))
1479 i->status_text = s;
1480 else if (streq(name, "SysFSPath"))
1481 i->sysfs_path = s;
1482 else if (streq(name, "Where"))
1483 i->where = s;
1484 else if (streq(name, "What"))
1485 i->what = s;
1486 }
1487
1488 break;
1489 }
1490
b8131a87
LP		 1491 case DBUS_TYPE_BOOLEAN: {
1492 dbus_bool_t b;
1493
1494 dbus_message_iter_get_basic(iter, &b);
1495
1496 if (streq(name, "Accept"))
1497 i->accept = b;
1498
1499 break;
1500 }
1501
61cbdc4b
LP		 1502 case DBUS_TYPE_UINT32: {
1503 uint32_t u;
1504
1505 dbus_message_iter_get_basic(iter, &u);
1506
1507 if (streq(name, "MainPID")) {
1508 if (u > 0) {
1509 i->main_pid = (pid_t) u;
1510 i->running = true;
1511 }
1512 } else if (streq(name, "ControlPID"))
1513 i->control_pid = (pid_t) u;
1514 else if (streq(name, "ExecMainPID")) {
1515 if (u > 0)
1516 i->main_pid = (pid_t) u;
1517 } else if (streq(name, "NAccepted"))
1518 i->n_accepted = u;
1519 else if (streq(name, "NConnections"))
1520 i->n_connections = u;
1521
1522 break;
1523 }
1524
1525 case DBUS_TYPE_INT32: {
1526 int32_t j;
1527
1528 dbus_message_iter_get_basic(iter, &j);
1529
1530 if (streq(name, "ExecMainCode"))
1531 i->exit_code = (int) j;
1532 else if (streq(name, "ExecMainStatus"))
1533 i->exit_status = (int) j;
1534
1535 break;
1536 }
1537
1538 case DBUS_TYPE_UINT64: {
1539 uint64_t u;
1540
1541 dbus_message_iter_get_basic(iter, &u);
1542
1543 if (streq(name, "ExecMainStartTimestamp"))
1544 i->start_timestamp = (usec_t) u;
1545 else if (streq(name, "ExecMainExitTimestamp"))
1546 i->exit_timestamp = (usec_t) u;
1547
1548 break;
1549 }
582a507f
LP		 1550
1551 case DBUS_TYPE_ARRAY: {
1552
1553 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1554 startswith(name, "Exec")) {
1555 DBusMessageIter sub;
1556
1557 dbus_message_iter_recurse(iter, &sub);
1558 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1559 ExecStatusInfo *info;
1560 int r;
1561
1562 if (!(info = new0(ExecStatusInfo, 1)))
1563 return -ENOMEM;
1564
1565 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1566 free(info);
1567 return r;
1568 }
1569
1570 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1571
1572 dbus_message_iter_next(&sub);
1573 }
1574 }
1575
1576 break;
1577 }
61cbdc4b
LP		 1578 }
1579
1580 return 0;
1581}
1582
48220598
LP		 1583static int print_property(const char *name, DBusMessageIter *iter) {
1584 assert(name);
1585 assert(iter);
1586
61cbdc4b
LP		 1587 /* This is a low-level property printer, see
1588 * print_status_info() for the nicer output */
1589
48220598
LP		 1590 if (arg_property && !streq(name, arg_property))
1591 return 0;
1592
1593 switch (dbus_message_iter_get_arg_type(iter)) {
1594
1595 case DBUS_TYPE_STRING: {
1596 const char *s;
1597 dbus_message_iter_get_basic(iter, &s);
1598
1599 if (arg_all || s[0])
1600 printf("%s=%s\n", name, s);
1601
1602 return 0;
1603 }
1604
1605 case DBUS_TYPE_BOOLEAN: {
1606 dbus_bool_t b;
1607 dbus_message_iter_get_basic(iter, &b);
1608 printf("%s=%s\n", name, yes_no(b));
1609
1610 return 0;
1611 }
1612
1613 case DBUS_TYPE_UINT64: {
1614 uint64_t u;
1615 dbus_message_iter_get_basic(iter, &u);
1616
1617 /* Yes, heuristics! But we can change this check
1618 * should it turn out to not be sufficient */
1619
14ad1d14 1620 if (strstr(name, "Timestamp")) {
48220598
LP		 1621 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1622
1623 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1624 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 1625 } else if (strstr(name, "USec")) {
1626 char timespan[FORMAT_TIMESPAN_MAX];
1627
1628 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 1629 } else
1630 printf("%s=%llu\n", name, (unsigned long long) u);
1631
1632 return 0;
1633 }
1634
1635 case DBUS_TYPE_UINT32: {
1636 uint32_t u;
1637 dbus_message_iter_get_basic(iter, &u);
1638
5bd07073 1639 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 1640 printf("%s=%04o\n", name, u);
1641 else
1642 printf("%s=%u\n", name, (unsigned) u);
1643
1644 return 0;
1645 }
1646
1647 case DBUS_TYPE_INT32: {
1648 int32_t i;
1649 dbus_message_iter_get_basic(iter, &i);
1650
1651 printf("%s=%i\n", name, (int) i);
1652 return 0;
1653 }
1654
1655 case DBUS_TYPE_STRUCT: {
1656 DBusMessageIter sub;
1657 dbus_message_iter_recurse(iter, &sub);
1658
ebf57b80 1659 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 1660 uint32_t u;
1661
1662 dbus_message_iter_get_basic(&sub, &u);
1663
1664 if (u)
1665 printf("%s=%u\n", name, (unsigned) u);
1666 else if (arg_all)
1667 printf("%s=\n", name);
1668
1669 return 0;
ebf57b80 1670 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 1671 const char *s;
1672
1673 dbus_message_iter_get_basic(&sub, &s);
1674
1675 if (arg_all || s[0])
1676 printf("%s=%s\n", name, s);
1677
1678 return 0;
1679 }
1680
1681 break;
1682 }
1683
1684 case DBUS_TYPE_ARRAY:
1685
1686 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
1687 DBusMessageIter sub;
1688 bool space = false;
1689
1690 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 1691 if (arg_all ||
1692 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1693 printf("%s=", name);
1694
1695 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1696 const char *s;
1697
1698 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
1699 dbus_message_iter_get_basic(&sub, &s);
1700 printf("%s%s", space ? " " : "", s);
1701
1702 space = true;
1703 dbus_message_iter_next(&sub);
1704 }
1705
1706 puts("");
1707 }
1708
ebf57b80 1709 return 0;
582a507f 1710
82c121a4
LP		 1711 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
1712 DBusMessageIter sub;
1713
1714 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 1715 if (arg_all ||
1716 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1717 printf("%s=", name);
1718
1719 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1720 uint8_t u;
ebf57b80 1721
82c121a4
LP		 1722 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
1723 dbus_message_iter_get_basic(&sub, &u);
1724 printf("%02x", u);
1725
1726 dbus_message_iter_next(&sub);
1727 }
1728
1729 puts("");
1730 }
1731
1732 return 0;
582a507f 1733
ebf57b80
LP		 1734 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
1735 DBusMessageIter sub, sub2;
1736
1737 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 1738 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1739 const char *type, *path;
1740
1741 dbus_message_iter_recurse(&sub, &sub2);
1742
1743 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
1744 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
1745 printf("%s=%s\n", type, path);
1746
1747 dbus_message_iter_next(&sub);
1748 }
1749
707e5e52 1750 return 0;
582a507f 1751
707e5e52
LP		 1752 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
1753 DBusMessageIter sub, sub2;
1754
1755 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 1756 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1757 const char *base;
1758 uint64_t value, next_elapse;
1759
1760 dbus_message_iter_recurse(&sub, &sub2);
1761
1762 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
1763 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 1764 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
1765 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
1766
1767 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 1768 base,
552e4331
LP		 1769 format_timespan(timespan1, sizeof(timespan1), value),
1770 format_timespan(timespan2, sizeof(timespan2), next_elapse));
1771 }
fe68089d
LP		 1772
1773 dbus_message_iter_next(&sub);
1774 }
1775
1776 return 0;
fe68089d 1777
582a507f
LP		 1778 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
1779 DBusMessageIter sub;
fe68089d
LP		 1780
1781 dbus_message_iter_recurse(iter, &sub);
fe68089d 1782 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 1783 ExecStatusInfo info;
fe68089d 1784
582a507f
LP		 1785 zero(info);
1786 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 1787 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 1788 char *t;
1789
1790 t = strv_join(info.argv, " ");
1791
b708e7ce 1792 printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
582a507f
LP		 1793 name,
1794 strna(info.path),
1795 strna(t),
b708e7ce 1796 yes_no(info.ignore),
582a507f
LP		 1797 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
1798 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
1799 (unsigned) info. pid,
1800 sigchld_code_to_string(info.code),
1801 info.status,
1802 info.code == CLD_EXITED ? "" : "/",
1803 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 1804
582a507f 1805 free(t);
fe68089d
LP		 1806 }
1807
582a507f
LP		 1808 free(info.path);
1809 strv_free(info.argv);
707e5e52
LP		 1810
1811 dbus_message_iter_next(&sub);
1812 }
1813
48220598
LP		 1814 return 0;
1815 }
1816
1817 break;
1818 }
1819
1820 if (arg_all)
1821 printf("%s=[unprintable]\n", name);
1822
1823 return 0;
1824}
1825
61cbdc4b 1826static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 1827 DBusMessage *m = NULL, *reply = NULL;
1828 const char *interface = "";
1829 int r;
1830 DBusError error;
1831 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 1832 UnitStatusInfo info;
582a507f 1833 ExecStatusInfo *p;
48220598
LP		 1834
1835 assert(bus);
1836 assert(path);
61cbdc4b 1837 assert(new_line);
48220598 1838
61cbdc4b 1839 zero(info);
48220598
LP		 1840 dbus_error_init(&error);
1841
1842 if (!(m = dbus_message_new_method_call(
1843 "org.freedesktop.systemd1",
1844 path,
1845 "org.freedesktop.DBus.Properties",
1846 "GetAll"))) {
1847 log_error("Could not allocate message.");
1848 r = -ENOMEM;
1849 goto finish;
1850 }
1851
1852 if (!dbus_message_append_args(m,
1853 DBUS_TYPE_STRING, &interface,
1854 DBUS_TYPE_INVALID)) {
1855 log_error("Could not append arguments to message.");
1856 r = -ENOMEM;
1857 goto finish;
1858 }
1859
1860 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1861 log_error("Failed to issue method call: %s", error.message);
1862 r = -EIO;
1863 goto finish;
1864 }
1865
1866 if (!dbus_message_iter_init(reply, &iter) ||
1867 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1868 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
1869 log_error("Failed to parse reply.");
1870 r = -EIO;
1871 goto finish;
1872 }
1873
1874 dbus_message_iter_recurse(&iter, &sub);
1875
61cbdc4b
LP		 1876 if (*new_line)
1877 printf("\n");
1878
1879 *new_line = true;
1880
48220598
LP		 1881 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1882 const char *name;
1883
1884 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
1885 log_error("Failed to parse reply.");
1886 r = -EIO;
1887 goto finish;
1888 }
1889
1890 dbus_message_iter_recurse(&sub, &sub2);
0183528f 1891
48220598
LP		 1892 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
1893 log_error("Failed to parse reply.");
1894 r = -EIO;
1895 goto finish;
1896 }
1897
1898 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
1899 log_error("Failed to parse reply.");
1900 r = -EIO;
1901 goto finish;
1902 }
1903
1904 dbus_message_iter_recurse(&sub2, &sub3);
1905
61cbdc4b
LP		 1906 if (show_properties)
1907 r = print_property(name, &sub3);
1908 else
1909 r = status_property(name, &sub3, &info);
1910
1911 if (r < 0) {
48220598
LP		 1912 log_error("Failed to parse reply.");
1913 r = -EIO;
1914 goto finish;
1915 }
1916
1917 dbus_message_iter_next(&sub);
1918 }
1919
61cbdc4b
LP		 1920 if (!show_properties)
1921 print_status_info(&info);
1922
582a507f
LP		 1923 while ((p = info.exec)) {
1924 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
1925 exec_status_info_free(p);
1926 }
1927
48220598
LP		 1928 r = 0;
1929
1930finish:
1931 if (m)
1932 dbus_message_unref(m);
1933
1934 if (reply)
1935 dbus_message_unref(reply);
1936
1937 dbus_error_free(&error);
1938
1939 return r;
1940}
1941
1942static int show(DBusConnection *bus, char **args, unsigned n) {
1943 DBusMessage *m = NULL, *reply = NULL;
1944 int r;
1945 DBusError error;
1946 unsigned i;
61cbdc4b 1947 bool show_properties, new_line = false;
48220598
LP		 1948
1949 assert(bus);
1950 assert(args);
1951
1952 dbus_error_init(&error);
1953
61cbdc4b
LP		 1954 show_properties = !streq(args[0], "status");
1955
1956 if (show_properties && n <= 1) {
48220598
LP		 1957 /* If not argument is specified inspect the manager
1958 * itself */
1959
61cbdc4b 1960 r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 1961 goto finish;
1962 }
1963
1964 for (i = 1; i < n; i++) {
1965 const char *path = NULL;
1966 uint32_t id;
1967
61cbdc4b 1968 if (!show_properties || safe_atou32(args[i], &id) < 0) {
48220598
LP		 1969
1970 if (!(m = dbus_message_new_method_call(
1971 "org.freedesktop.systemd1",
1972 "/org/freedesktop/systemd1",
1973 "org.freedesktop.systemd1.Manager",
e87d1818 1974 "LoadUnit"))) {
48220598
LP		 1975 log_error("Could not allocate message.");
1976 r = -ENOMEM;
1977 goto finish;
1978 }
1979
1980 if (!dbus_message_append_args(m,
1981 DBUS_TYPE_STRING, &args[i],
1982 DBUS_TYPE_INVALID)) {
1983 log_error("Could not append arguments to message.");
1984 r = -ENOMEM;
1985 goto finish;
1986 }
1987
ed2d7a44
LP		 1988 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1989
1990 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
1991 log_error("Failed to issue method call: %s", error.message);
1992 r = -EIO;
1993 goto finish;
1994 }
1995
1996 dbus_error_free(&error);
1997
1998 dbus_message_unref(m);
1999 if (!(m = dbus_message_new_method_call(
2000 "org.freedesktop.systemd1",
2001 "/org/freedesktop/systemd1",
2002 "org.freedesktop.systemd1.Manager",
2003 "GetUnit"))) {
2004 log_error("Could not allocate message.");
2005 r = -ENOMEM;
2006 goto finish;
2007 }
2008
2009 if (!dbus_message_append_args(m,
2010 DBUS_TYPE_STRING, &args[i],
2011 DBUS_TYPE_INVALID)) {
2012 log_error("Could not append arguments to message.");
2013 r = -ENOMEM;
2014 goto finish;
2015 }
2016
2017 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2018 log_error("Failed to issue method call: %s", error.message);
2019 r = -EIO;
2020 goto finish;
2021 }
2022 }
2023
48220598
LP		 2024 } else {
2025
2026 if (!(m = dbus_message_new_method_call(
2027 "org.freedesktop.systemd1",
2028 "/org/freedesktop/systemd1",
2029 "org.freedesktop.systemd1.Manager",
2030 "GetJob"))) {
2031 log_error("Could not allocate message.");
2032 r = -ENOMEM;
2033 goto finish;
2034 }
2035
2036 if (!dbus_message_append_args(m,
2037 DBUS_TYPE_UINT32, &id,
2038 DBUS_TYPE_INVALID)) {
2039 log_error("Could not append arguments to message.");
2040 r = -ENOMEM;
2041 goto finish;
2042 }
48220598 2043
ed2d7a44
LP		 2044 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2045 log_error("Failed to issue method call: %s", error.message);
2046 r = -EIO;
2047 goto finish;
2048 }
48220598
LP		 2049 }
2050
2051 if (!dbus_message_get_args(reply, &error,
2052 DBUS_TYPE_OBJECT_PATH, &path,
2053 DBUS_TYPE_INVALID)) {
2054 log_error("Failed to parse reply: %s", error.message);
2055 r = -EIO;
2056 goto finish;
2057 }
2058
61cbdc4b 2059 if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
48220598
LP		 2060 goto finish;
2061
2062 dbus_message_unref(m);
2063 dbus_message_unref(reply);
2064 m = reply = NULL;
2065 }
2066
2067 r = 0;
2068
2069finish:
2070 if (m)
2071 dbus_message_unref(m);
2072
2073 if (reply)
2074 dbus_message_unref(reply);
2075
2076 dbus_error_free(&error);
2077
2078 return r;
0183528f
LP		 2079}
2080
7e4249b9
LP		 2081static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2082 DBusError error;
2083 DBusMessage *m = NULL, *reply = NULL;
2084
2085 assert(connection);
2086 assert(message);
2087
2088 dbus_error_init(&error);
2089
54165a39
LP		 2090 log_debug("Got D-Bus request: %s.%s() on %s",
2091 dbus_message_get_interface(message),
2092 dbus_message_get_member(message),
2093 dbus_message_get_path(message));
7e4249b9
LP		 2094
2095 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2096 log_error("Warning! D-Bus connection terminated.");
2097 dbus_connection_close(connection);
2098
2099 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2100 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2101 const char *id, *path;
2102
2103 if (!dbus_message_get_args(message, &error,
2104 DBUS_TYPE_STRING, &id,
2105 DBUS_TYPE_OBJECT_PATH, &path,
2106 DBUS_TYPE_INVALID))
2107 log_error("Failed to parse message: %s", error.message);
2108 else if (streq(dbus_message_get_member(message), "UnitNew"))
2109 printf("Unit %s added.\n", id);
2110 else
2111 printf("Unit %s removed.\n", id);
2112
2113 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2114 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2115 uint32_t id;
2116 const char *path;
2117
2118 if (!dbus_message_get_args(message, &error,
2119 DBUS_TYPE_UINT32, &id,
2120 DBUS_TYPE_OBJECT_PATH, &path,
2121 DBUS_TYPE_INVALID))
2122 log_error("Failed to parse message: %s", error.message);
2123 else if (streq(dbus_message_get_member(message), "JobNew"))
2124 printf("Job %u added.\n", id);
2125 else
2126 printf("Job %u removed.\n", id);
2127
2128
2129 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Unit", "Changed") ||
2130 dbus_message_is_signal(message, "org.freedesktop.systemd1.Job", "Changed")) {
2131
2132 const char *path, *interface, *property = "Id";
2133 DBusMessageIter iter, sub;
2134
2135 path = dbus_message_get_path(message);
2136 interface = dbus_message_get_interface(message);
2137
2138 if (!(m = dbus_message_new_method_call(
2139 "org.freedesktop.systemd1",
2140 path,
2141 "org.freedesktop.DBus.Properties",
2142 "Get"))) {
2143 log_error("Could not allocate message.");
2144 goto oom;
2145 }
2146
2147 if (!dbus_message_append_args(m,
2148 DBUS_TYPE_STRING, &interface,
2149 DBUS_TYPE_STRING, &property,
2150 DBUS_TYPE_INVALID)) {
2151 log_error("Could not append arguments to message.");
2152 goto finish;
2153 }
2154
2155 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2156 log_error("Failed to issue method call: %s", error.message);
2157 goto finish;
2158 }
2159
2160 if (!dbus_message_iter_init(reply, &iter) ||
2161 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2162 log_error("Failed to parse reply.");
2163 goto finish;
2164 }
2165
2166 dbus_message_iter_recurse(&iter, &sub);
2167
2168 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2169 const char *id;
2170
2171 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2172 log_error("Failed to parse reply.");
2173 goto finish;
2174 }
2175
2176 dbus_message_iter_get_basic(&sub, &id);
2177 printf("Unit %s changed.\n", id);
2178 } else {
2179 uint32_t id;
2180
2181 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2182 log_error("Failed to parse reply.");
2183 goto finish;
2184 }
2185
2186 dbus_message_iter_get_basic(&sub, &id);
2187 printf("Job %u changed.\n", id);
2188 }
2189 }
2190
2191finish:
2192 if (m)
2193 dbus_message_unref(m);
2194
2195 if (reply)
2196 dbus_message_unref(reply);
2197
2198 dbus_error_free(&error);
2199 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2200
2201oom:
2202 if (m)
2203 dbus_message_unref(m);
2204
2205 if (reply)
2206 dbus_message_unref(reply);
2207
2208 dbus_error_free(&error);
2209 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2210}
2211
2212static int monitor(DBusConnection *bus, char **args, unsigned n) {
2213 DBusMessage *m = NULL, *reply = NULL;
2214 DBusError error;
2215 int r;
2216
2217 dbus_error_init(&error);
2218
f4579ce7
LP		 2219 if (!private_bus) {
2220 dbus_bus_add_match(bus,
2221 "type='signal',"
2222 "sender='org.freedesktop.systemd1',"
2223 "interface='org.freedesktop.systemd1.Manager',"
2224 "path='/org/freedesktop/systemd1'",
2225 &error);
7e4249b9 2226
f4579ce7
LP		 2227 if (dbus_error_is_set(&error)) {
2228 log_error("Failed to add match: %s", error.message);
2229 r = -EIO;
2230 goto finish;
2231 }
7e4249b9 2232
f4579ce7
LP		 2233 dbus_bus_add_match(bus,
2234 "type='signal',"
2235 "sender='org.freedesktop.systemd1',"
2236 "interface='org.freedesktop.systemd1.Unit',"
2237 "member='Changed'",
2238 &error);
7e4249b9 2239
f4579ce7
LP		 2240 if (dbus_error_is_set(&error)) {
2241 log_error("Failed to add match: %s", error.message);
2242 r = -EIO;
2243 goto finish;
2244 }
7e4249b9 2245
f4579ce7
LP		 2246 dbus_bus_add_match(bus,
2247 "type='signal',"
2248 "sender='org.freedesktop.systemd1',"
2249 "interface='org.freedesktop.systemd1.Job',"
2250 "member='Changed'",
2251 &error);
7e4249b9 2252
f4579ce7
LP		 2253 if (dbus_error_is_set(&error)) {
2254 log_error("Failed to add match: %s", error.message);
2255 r = -EIO;
2256 goto finish;
2257 }
7e4249b9
LP		 2258 }
2259
2260 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2261 log_error("Failed to add filter.");
2262 r = -ENOMEM;
2263 goto finish;
2264 }
2265
2266 if (!(m = dbus_message_new_method_call(
2267 "org.freedesktop.systemd1",
2268 "/org/freedesktop/systemd1",
2269 "org.freedesktop.systemd1.Manager",
2270 "Subscribe"))) {
2271 log_error("Could not allocate message.");
2272 r = -ENOMEM;
2273 goto finish;
2274 }
2275
2276 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2277 log_error("Failed to issue method call: %s", error.message);
2278 r = -EIO;
2279 goto finish;
2280 }
2281
2282 while (dbus_connection_read_write_dispatch(bus, -1))
2283 ;
2284
2285 r = 0;
2286
2287finish:
2288
2289 /* This is slightly dirty, since we don't undo the filter or the matches. */
2290
2291 if (m)
2292 dbus_message_unref(m);
2293
2294 if (reply)
2295 dbus_message_unref(reply);
2296
2297 dbus_error_free(&error);
2298
2299 return r;
2300}
2301
2302static int dump(DBusConnection *bus, char **args, unsigned n) {
2303 DBusMessage *m = NULL, *reply = NULL;
2304 DBusError error;
2305 int r;
2306 const char *text;
2307
2308 dbus_error_init(&error);
2309
2310 if (!(m = dbus_message_new_method_call(
2311 "org.freedesktop.systemd1",
2312 "/org/freedesktop/systemd1",
2313 "org.freedesktop.systemd1.Manager",
2314 "Dump"))) {
2315 log_error("Could not allocate message.");
2316 return -ENOMEM;
2317 }
2318
2319 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2320 log_error("Failed to issue method call: %s", error.message);
2321 r = -EIO;
2322 goto finish;
2323 }
2324
2325 if (!dbus_message_get_args(reply, &error,
2326 DBUS_TYPE_STRING, &text,
2327 DBUS_TYPE_INVALID)) {
2328 log_error("Failed to parse reply: %s", error.message);
2329 r = -EIO;
2330 goto finish;
2331 }
2332
2333 fputs(text, stdout);
2334
2335 r = 0;
2336
2337finish:
2338 if (m)
2339 dbus_message_unref(m);
2340
2341 if (reply)
2342 dbus_message_unref(reply);
2343
2344 dbus_error_free(&error);
2345
2346 return r;
2347}
2348
2349static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2350 DBusMessage *m = NULL, *reply = NULL;
2351 DBusError error;
2352 int r;
2353 const char *name = "", *path, *id;
2354 dbus_bool_t cleanup = FALSE;
2355 DBusMessageIter iter, sub;
2356 const char
2357 *interface = "org.freedesktop.systemd1.Unit",
2358 *property = "Id";
2359
2360 dbus_error_init(&error);
2361
2362 if (!(m = dbus_message_new_method_call(
2363 "org.freedesktop.systemd1",
2364 "/org/freedesktop/systemd1",
2365 "org.freedesktop.systemd1.Manager",
2366 "CreateSnapshot"))) {
2367 log_error("Could not allocate message.");
2368 return -ENOMEM;
2369 }
2370
2371 if (n > 1)
2372 name = args[1];
2373
2374 if (!dbus_message_append_args(m,
2375 DBUS_TYPE_STRING, &name,
2376 DBUS_TYPE_BOOLEAN, &cleanup,
2377 DBUS_TYPE_INVALID)) {
2378 log_error("Could not append arguments to message.");
2379 r = -ENOMEM;
2380 goto finish;
2381 }
2382
2383 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2384 log_error("Failed to issue method call: %s", error.message);
2385 r = -EIO;
2386 goto finish;
2387 }
2388
2389 if (!dbus_message_get_args(reply, &error,
2390 DBUS_TYPE_OBJECT_PATH, &path,
2391 DBUS_TYPE_INVALID)) {
2392 log_error("Failed to parse reply: %s", error.message);
2393 r = -EIO;
2394 goto finish;
2395 }
2396
2397 dbus_message_unref(m);
2398 if (!(m = dbus_message_new_method_call(
2399 "org.freedesktop.systemd1",
2400 path,
2401 "org.freedesktop.DBus.Properties",
2402 "Get"))) {
2403 log_error("Could not allocate message.");
2404 return -ENOMEM;
2405 }
2406
2407 if (!dbus_message_append_args(m,
2408 DBUS_TYPE_STRING, &interface,
2409 DBUS_TYPE_STRING, &property,
2410 DBUS_TYPE_INVALID)) {
2411 log_error("Could not append arguments to message.");
2412 r = -ENOMEM;
2413 goto finish;
2414 }
2415
2416 dbus_message_unref(reply);
2417 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2418 log_error("Failed to issue method call: %s", error.message);
2419 r = -EIO;
2420 goto finish;
2421 }
2422
2423 if (!dbus_message_iter_init(reply, &iter) ||
2424 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2425 log_error("Failed to parse reply.");
2426 r = -EIO;
2427 goto finish;
2428 }
2429
2430 dbus_message_iter_recurse(&iter, &sub);
2431
2432 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2433 log_error("Failed to parse reply.");
2434 r = -EIO;
2435 goto finish;
2436 }
2437
2438 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 2439
2440 if (!arg_quiet)
2441 puts(id);
7e4249b9
LP		 2442 r = 0;
2443
2444finish:
2445 if (m)
2446 dbus_message_unref(m);
2447
2448 if (reply)
2449 dbus_message_unref(reply);
2450
2451 dbus_error_free(&error);
2452
2453 return r;
2454}
2455
6759e7a7
LP		 2456static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2457 DBusMessage *m = NULL, *reply = NULL;
2458 int r;
2459 DBusError error;
2460 unsigned i;
2461
2462 assert(bus);
2463 assert(args);
2464
2465 dbus_error_init(&error);
2466
2467 for (i = 1; i < n; i++) {
2468 const char *path = NULL;
2469
2470 if (!(m = dbus_message_new_method_call(
2471 "org.freedesktop.systemd1",
2472 "/org/freedesktop/systemd1",
2473 "org.freedesktop.systemd1.Manager",
2474 "GetUnit"))) {
2475 log_error("Could not allocate message.");
2476 r = -ENOMEM;
2477 goto finish;
2478 }
2479
2480 if (!dbus_message_append_args(m,
2481 DBUS_TYPE_STRING, &args[i],
2482 DBUS_TYPE_INVALID)) {
2483 log_error("Could not append arguments to message.");
2484 r = -ENOMEM;
2485 goto finish;
2486 }
2487
2488 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2489 log_error("Failed to issue method call: %s", error.message);
2490 r = -EIO;
2491 goto finish;
2492 }
2493
2494 if (!dbus_message_get_args(reply, &error,
2495 DBUS_TYPE_OBJECT_PATH, &path,
2496 DBUS_TYPE_INVALID)) {
2497 log_error("Failed to parse reply: %s", error.message);
2498 r = -EIO;
2499 goto finish;
2500 }
2501
2502 dbus_message_unref(m);
2503 if (!(m = dbus_message_new_method_call(
2504 "org.freedesktop.systemd1",
2505 path,
2506 "org.freedesktop.systemd1.Snapshot",
2507 "Remove"))) {
2508 log_error("Could not allocate message.");
2509 r = -ENOMEM;
2510 goto finish;
2511 }
2512
2513 dbus_message_unref(reply);
2514 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2515 log_error("Failed to issue method call: %s", error.message);
2516 r = -EIO;
2517 goto finish;
2518 }
2519
2520 dbus_message_unref(m);
2521 dbus_message_unref(reply);
2522 m = reply = NULL;
2523 }
2524
2525 r = 0;
2526
2527finish:
2528 if (m)
2529 dbus_message_unref(m);
2530
2531 if (reply)
2532 dbus_message_unref(reply);
2533
2534 dbus_error_free(&error);
2535
2536 return r;
2537}
2538
7e4249b9
LP		 2539static int clear_jobs(DBusConnection *bus, char **args, unsigned n) {
2540 DBusMessage *m = NULL, *reply = NULL;
2541 DBusError error;
2542 int r;
2543 const char *method;
2544
2545 dbus_error_init(&error);
2546
e4b61340
LP		 2547 if (arg_action == ACTION_RELOAD)
2548 method = "Reload";
2549 else if (arg_action == ACTION_REEXEC)
2550 method = "Reexecute";
2551 else {
2552 assert(arg_action == ACTION_SYSTEMCTL);
2553
2554 method =
2555 streq(args[0], "clear-jobs") ? "ClearJobs" :
2556 streq(args[0], "daemon-reload") ? "Reload" :
2557 streq(args[0], "daemon-reexec") ? "Reexecute" :
2558 "Exit";
2559 }
7e4249b9
LP		 2560
2561 if (!(m = dbus_message_new_method_call(
2562 "org.freedesktop.systemd1",
2563 "/org/freedesktop/systemd1",
2564 "org.freedesktop.systemd1.Manager",
2565 method))) {
2566 log_error("Could not allocate message.");
2567 return -ENOMEM;
2568 }
2569
2570 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 2571
2572 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2573 /* There's always a fallback possible for
2574 * legacy actions. */
2575 r = 0;
2576 goto finish;
2577 }
2578
7e4249b9
LP		 2579 log_error("Failed to issue method call: %s", error.message);
2580 r = -EIO;
2581 goto finish;
2582 }
2583
e4b61340 2584 r = 1;
7e4249b9
LP		 2585
2586finish:
2587 if (m)
2588 dbus_message_unref(m);
2589
2590 if (reply)
2591 dbus_message_unref(reply);
2592
2593 dbus_error_free(&error);
2594
2595 return r;
2596}
2597
2598static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
2599 DBusMessage *m = NULL, *reply = NULL;
2600 DBusError error;
2601 DBusMessageIter iter, sub, sub2;
2602 int r;
2603 const char
2604 *interface = "org.freedesktop.systemd1.Manager",
2605 *property = "Environment";
2606
2607 dbus_error_init(&error);
2608
2609 if (!(m = dbus_message_new_method_call(
2610 "org.freedesktop.systemd1",
2611 "/org/freedesktop/systemd1",
2612 "org.freedesktop.DBus.Properties",
2613 "Get"))) {
2614 log_error("Could not allocate message.");
2615 return -ENOMEM;
2616 }
2617
2618 if (!dbus_message_append_args(m,
2619 DBUS_TYPE_STRING, &interface,
2620 DBUS_TYPE_STRING, &property,
2621 DBUS_TYPE_INVALID)) {
2622 log_error("Could not append arguments to message.");
2623 r = -ENOMEM;
2624 goto finish;
2625 }
2626
2627 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2628 log_error("Failed to issue method call: %s", error.message);
2629 r = -EIO;
2630 goto finish;
2631 }
2632
2633 if (!dbus_message_iter_init(reply, &iter) ||
2634 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2635 log_error("Failed to parse reply.");
2636 r = -EIO;
2637 goto finish;
2638 }
2639
2640 dbus_message_iter_recurse(&iter, &sub);
2641
2642 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
2643 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
2644 log_error("Failed to parse reply.");
2645 r = -EIO;
2646 goto finish;
2647 }
2648
2649 dbus_message_iter_recurse(&sub, &sub2);
2650
2651 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
2652 const char *text;
2653
2654 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
2655 log_error("Failed to parse reply.");
2656 r = -EIO;
2657 goto finish;
2658 }
2659
2660 dbus_message_iter_get_basic(&sub2, &text);
2661 printf("%s\n", text);
2662
2663 dbus_message_iter_next(&sub2);
2664 }
2665
2666 r = 0;
2667
2668finish:
2669 if (m)
2670 dbus_message_unref(m);
2671
2672 if (reply)
2673 dbus_message_unref(reply);
2674
2675 dbus_error_free(&error);
2676
2677 return r;
2678}
2679
2680static int set_environment(DBusConnection *bus, char **args, unsigned n) {
2681 DBusMessage *m = NULL, *reply = NULL;
2682 DBusError error;
2683 int r;
2684 const char *method;
2685 DBusMessageIter iter, sub;
2686 unsigned i;
2687
2688 dbus_error_init(&error);
2689
2690 method = streq(args[0], "set-environment")
2691 ? "SetEnvironment"
2692 : "UnsetEnvironment";
2693
2694 if (!(m = dbus_message_new_method_call(
2695 "org.freedesktop.systemd1",
2696 "/org/freedesktop/systemd1",
2697 "org.freedesktop.systemd1.Manager",
2698 method))) {
2699
2700 log_error("Could not allocate message.");
2701 return -ENOMEM;
2702 }
2703
2704 dbus_message_iter_init_append(m, &iter);
2705
2706 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
2707 log_error("Could not append arguments to message.");
2708 r = -ENOMEM;
2709 goto finish;
2710 }
2711
2712 for (i = 1; i < n; i++)
2713 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
2714 log_error("Could not append arguments to message.");
2715 r = -ENOMEM;
2716 goto finish;
2717 }
2718
2719 if (!dbus_message_iter_close_container(&iter, &sub)) {
2720 log_error("Could not append arguments to message.");
2721 r = -ENOMEM;
2722 goto finish;
2723 }
2724
2725 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2726 log_error("Failed to issue method call: %s", error.message);
2727 r = -EIO;
2728 goto finish;
2729 }
2730
2731 r = 0;
2732
2733finish:
2734 if (m)
2735 dbus_message_unref(m);
2736
2737 if (reply)
2738 dbus_message_unref(reply);
2739
2740 dbus_error_free(&error);
2741
2742 return r;
2743}
2744
e4b61340 2745static int systemctl_help(void) {
7e4249b9 2746
2e33c433 2747 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5ec7ed4e 2748 "Send control commands to the systemd manager.\n\n"
48220598
LP		 2749 " -h --help Show this help\n"
2750 " -t --type=TYPE List only units of a particular type\n"
393a2f9b 2751 " -p --property=NAME Show only properties by this name\n"
48220598 2752 " -a --all Show all units/properties, including dead/empty ones\n"
6f28c033
LP		 2753 " --fail When installing a new job, fail if conflicting jobs are\n"
2754 " pending\n"
48220598
LP		 2755 " --system Connect to system bus\n"
2756 " --session Connect to session bus\n"
4445a875
LP		 2757 " --order When generating graph for dot, show only order\n"
2758 " --require When generating graph for dot, show only requirement\n"
48220598
LP		 2759 " -q --quiet Suppress output\n"
2760 " --no-block Do not wait until operation finished\n"
2761 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
7e4249b9
LP		 2762 "Commands:\n"
2763 " list-units List units\n"
7e4249b9
LP		 2764 " start [NAME...] Start one or more units\n"
2765 " stop [NAME...] Stop one or more units\n"
7e4249b9 2766 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 2767 " restart [NAME...] Start or restart one or more units\n"
2768 " try-restart [NAME...] Restart one or more units if active\n"
2769 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
2770 " otherwise start or restart\n"
2771 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
2772 " otherwise restart if active\n"
7e4249b9 2773 " isolate [NAME] Start one unit and stop all others\n"
6f28c033 2774 " check [NAME...] Check whether units are active\n"
61cbdc4b 2775 " status [NAME...] Show status of one or more units\n"
6f28c033
LP		 2776 " show [NAME...|JOB...] Show properties of one or more\n"
2777 " units/jobs/manager\n"
48220598
LP		 2778 " load [NAME...] Load one or more units\n"
2779 " list-jobs List jobs\n"
2780 " cancel [JOB...] Cancel one or more jobs\n"
2781 " clear-jobs Cancel all jobs\n"
7e4249b9
LP		 2782 " monitor Monitor unit/job changes\n"
2783 " dump Dump server status\n"
4445a875 2784 " dot Dump dependency graph for dot(1)\n"
7e4249b9 2785 " snapshot [NAME] Create a snapshot\n"
6759e7a7 2786 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 2787 " daemon-reload Reload systemd manager configuration\n"
2788 " daemon-reexec Reexecute systemd manager\n"
2789 " daemon-exit Ask the systemd manager to quit\n"
7e4249b9
LP		 2790 " show-environment Dump environment\n"
2791 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5
LP		 2792 " unset-environment [NAME...] Unset one or more environment variables\n"
2793 " halt Shut down and halt the system\n"
2e33c433 2794 " poweroff Shut down and power-off the system\n"
514f4ef5 2795 " reboot Shut down and reboot the system\n"
6f28c033
LP		 2796 " rescue Enter system rescue mode\n"
2797 " emergency Enter system emergency mode\n"
2798 " default Enter system default mode\n",
5b6319dc 2799 program_invocation_short_name);
7e4249b9
LP		 2800
2801 return 0;
2802}
2803
e4b61340
LP		 2804static int halt_help(void) {
2805
2e33c433 2806 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 2807 "%s the system.\n\n"
2808 " --help Show this help\n"
2809 " --halt Halt the machine\n"
2810 " -p --poweroff Switch off the machine\n"
2811 " --reboot Reboot the machine\n"
2e33c433
LP		 2812 " -f --force Force immediate halt/power-off/reboot\n"
2813 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 2814 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 2815 " -n --no-sync Don't sync before halt/power-off/reboot\n"
2816 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 2817 program_invocation_short_name,
2818 arg_action == ACTION_REBOOT ? "Reboot" :
2819 arg_action == ACTION_POWEROFF ? "Power off" :
2820 "Halt");
2821
2822 return 0;
2823}
2824
2825static int shutdown_help(void) {
2826
2e33c433 2827 printf("%s [OPTIONS...] [now] [WALL...]\n\n"
e4b61340
LP		 2828 "Shut down the system.\n\n"
2829 " --help Show this help\n"
2830 " -H --halt Halt the machine\n"
2831 " -P --poweroff Power-off the machine\n"
2832 " -r --reboot Reboot the machine\n"
2833 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433
LP		 2834 " -k Don't halt/power-off/reboot, just send warnings\n"
2835 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 2836 program_invocation_short_name);
2837
2838 return 0;
2839}
2840
2841static int telinit_help(void) {
2842
2e33c433 2843 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 2844 "Send control commands to the init daemon.\n\n"
2845 " --help Show this help\n"
2e33c433 2846 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 2847 "Commands:\n"
2848 " 0 Power-off the machine\n"
2849 " 6 Reboot the machine\n"
514f4ef5
LP		 2850 " 2, 3, 4, 5 Start runlevelX.target unit\n"
2851 " 1, s, S Enter rescue mode\n"
2852 " q, Q Reload init daemon configuration\n"
2853 " u, U Reexecute init daemon\n",
e4b61340
LP		 2854 program_invocation_short_name);
2855
2856 return 0;
2857}
2858
2859static int runlevel_help(void) {
2860
2e33c433 2861 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 2862 "Prints the previous and current runlevel of the init system.\n\n"
2863 " --help Show this help\n",
2864 program_invocation_short_name);
2865
2866 return 0;
2867}
2868
2869static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 2870
2871 enum {
90d473a1 2872 ARG_FAIL = 0x100,
7e4249b9
LP		 2873 ARG_SESSION,
2874 ARG_SYSTEM,
6e905d93 2875 ARG_NO_BLOCK,
4445a875
LP		 2876 ARG_NO_WALL,
2877 ARG_ORDER,
2878 ARG_REQUIRE
7e4249b9
LP		 2879 };
2880
2881 static const struct option options[] = {
6e905d93
LP		 2882 { "help", no_argument, NULL, 'h' },
2883 { "type", required_argument, NULL, 't' },
48220598 2884 { "property", required_argument, NULL, 'p' },
6e905d93 2885 { "all", no_argument, NULL, 'a' },
90d473a1 2886 { "fail", no_argument, NULL, ARG_FAIL },
6e905d93
LP		 2887 { "session", no_argument, NULL, ARG_SESSION },
2888 { "system", no_argument, NULL, ARG_SYSTEM },
2889 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
2890 { "no-wall", no_argument, NULL, ARG_NO_WALL },
0183528f 2891 { "quiet", no_argument, NULL, 'q' },
4445a875
LP		 2892 { "order", no_argument, NULL, ARG_ORDER },
2893 { "require", no_argument, NULL, ARG_REQUIRE },
6e905d93 2894 { NULL, 0, NULL, 0 }
7e4249b9
LP		 2895 };
2896
2897 int c;
2898
e4b61340 2899 assert(argc >= 0);
7e4249b9
LP		 2900 assert(argv);
2901
48220598 2902 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
7e4249b9
LP		 2903
2904 switch (c) {
2905
2906 case 'h':
e4b61340 2907 systemctl_help();
7e4249b9
LP		 2908 return 0;
2909
2910 case 't':
2911 arg_type = optarg;
2912 break;
2913
48220598
LP		 2914 case 'p':
2915 arg_property = optarg;
2916
2917 /* If the user asked for a particular
2918 * property, show it to him, even if it is
2919 * empty. */
2920 arg_all = true;
2921 break;
2922
7e4249b9
LP		 2923 case 'a':
2924 arg_all = true;
2925 break;
2926
90d473a1
LP		 2927 case ARG_FAIL:
2928 arg_fail = true;
7e4249b9
LP		 2929 break;
2930
2931 case ARG_SESSION:
2932 arg_session = true;
2933 break;
2934
2935 case ARG_SYSTEM:
2936 arg_session = false;
2937 break;
2938
6e905d93
LP		 2939 case ARG_NO_BLOCK:
2940 arg_no_block = true;
7e4249b9
LP		 2941 break;
2942
514f4ef5
LP		 2943 case ARG_NO_WALL:
2944 arg_no_wall = true;
2945 break;
2946
4445a875
LP		 2947 case ARG_ORDER:
2948 arg_dot = DOT_ORDER;
2949 break;
2950
2951 case ARG_REQUIRE:
2952 arg_dot = DOT_REQUIRE;
2953 break;
2954
0183528f
LP		 2955 case 'q':
2956 arg_quiet = true;
2957 break;
2958
7e4249b9
LP		 2959 case '?':
2960 return -EINVAL;
2961
2962 default:
2963 log_error("Unknown option code %c", c);
2964 return -EINVAL;
2965 }
2966 }
2967
2968 return 1;
2969}
2970
e4b61340
LP		 2971static int halt_parse_argv(int argc, char *argv[]) {
2972
2973 enum {
2974 ARG_HELP = 0x100,
2975 ARG_HALT,
514f4ef5
LP		 2976 ARG_REBOOT,
2977 ARG_NO_WALL
e4b61340
LP		 2978 };
2979
2980 static const struct option options[] = {
2981 { "help", no_argument, NULL, ARG_HELP },
2982 { "halt", no_argument, NULL, ARG_HALT },
2983 { "poweroff", no_argument, NULL, 'p' },
2984 { "reboot", no_argument, NULL, ARG_REBOOT },
2985 { "force", no_argument, NULL, 'f' },
2986 { "wtmp-only", no_argument, NULL, 'w' },
2987 { "no-wtmp", no_argument, NULL, 'd' },
2988 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 2989 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 2990 { NULL, 0, NULL, 0 }
2991 };
2992
2993 int c, runlevel;
2994
2995 assert(argc >= 0);
2996 assert(argv);
2997
2998 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
2999 if (runlevel == '0' || runlevel == '6')
3000 arg_immediate = true;
3001
3002 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
3003 switch (c) {
3004
3005 case ARG_HELP:
3006 halt_help();
3007 return 0;
3008
3009 case ARG_HALT:
3010 arg_action = ACTION_HALT;
3011 break;
3012
3013 case 'p':
3014 arg_action = ACTION_POWEROFF;
3015 break;
3016
3017 case ARG_REBOOT:
3018 arg_action = ACTION_REBOOT;
3019 break;
3020
3021 case 'f':
3022 arg_immediate = true;
3023 break;
3024
3025 case 'w':
3026 arg_dry = true;
3027 break;
3028
3029 case 'd':
3030 arg_no_wtmp = true;
3031 break;
3032
3033 case 'n':
3034 arg_no_sync = true;
3035 break;
3036
514f4ef5
LP		 3037 case ARG_NO_WALL:
3038 arg_no_wall = true;
3039 break;
3040
e4b61340
LP		 3041 case 'i':
3042 case 'h':
3043 /* Compatibility nops */
3044 break;
3045
3046 case '?':
3047 return -EINVAL;
3048
3049 default:
3050 log_error("Unknown option code %c", c);
3051 return -EINVAL;
3052 }
3053 }
3054
3055 if (optind < argc) {
3056 log_error("Too many arguments.");
3057 return -EINVAL;
3058 }
3059
3060 return 1;
3061}
3062
3063static int shutdown_parse_argv(int argc, char *argv[]) {
3064
3065 enum {
3066 ARG_HELP = 0x100,
514f4ef5 3067 ARG_NO_WALL
e4b61340
LP		 3068 };
3069
3070 static const struct option options[] = {
3071 { "help", no_argument, NULL, ARG_HELP },
3072 { "halt", no_argument, NULL, 'H' },
3073 { "poweroff", no_argument, NULL, 'P' },
3074 { "reboot", no_argument, NULL, 'r' },
514f4ef5 3075 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 3076 { NULL, 0, NULL, 0 }
3077 };
3078
3079 int c;
3080
3081 assert(argc >= 0);
3082 assert(argv);
3083
3084 while ((c = getopt_long(argc, argv, "HPrhkt:a", options, NULL)) >= 0) {
3085 switch (c) {
3086
3087 case ARG_HELP:
3088 shutdown_help();
3089 return 0;
3090
3091 case 'H':
3092 arg_action = ACTION_HALT;
3093 break;
3094
3095 case 'P':
3096 arg_action = ACTION_POWEROFF;
3097 break;
3098
3099 case 'r':
3100 arg_action = ACTION_REBOOT;
3101 break;
3102
3103 case 'h':
3104 if (arg_action != ACTION_HALT)
3105 arg_action = ACTION_POWEROFF;
3106 break;
3107
3108 case 'k':
3109 arg_dry = true;
3110 break;
3111
514f4ef5
LP		 3112 case ARG_NO_WALL:
3113 arg_no_wall = true;
3114 break;
3115
e4b61340
LP		 3116 case 't':
3117 case 'a':
3118 /* Compatibility nops */
3119 break;
3120
3121 case '?':
3122 return -EINVAL;
3123
3124 default:
3125 log_error("Unknown option code %c", c);
3126 return -EINVAL;
3127 }
3128 }
3129
4545812f
LP		 3130 if (argc > optind && !streq(argv[optind], "now"))
3131 log_warning("First argument '%s' isn't 'now'. Ignoring.", argv[optind]);
442b9094 3132
e4b61340
LP		 3133 /* We ignore the time argument */
3134 if (argc > optind + 1)
3135 arg_wall = argv + optind + 1;
3136
3137 optind = argc;
3138
3139 return 1;
e4b61340
LP		 3140}
3141
3142static int telinit_parse_argv(int argc, char *argv[]) {
3143
3144 enum {
3145 ARG_HELP = 0x100,
514f4ef5 3146 ARG_NO_WALL
e4b61340
LP		 3147 };
3148
3149 static const struct option options[] = {
3150 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 3151 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 3152 { NULL, 0, NULL, 0 }
3153 };
3154
3155 static const struct {
3156 char from;
3157 enum action to;
3158 } table[] = {
3159 { '0', ACTION_POWEROFF },
3160 { '6', ACTION_REBOOT },
ef2f1067 3161 { '1', ACTION_RESCUE },
e4b61340
LP		 3162 { '2', ACTION_RUNLEVEL2 },
3163 { '3', ACTION_RUNLEVEL3 },
3164 { '4', ACTION_RUNLEVEL4 },
3165 { '5', ACTION_RUNLEVEL5 },
3166 { 's', ACTION_RESCUE },
3167 { 'S', ACTION_RESCUE },
3168 { 'q', ACTION_RELOAD },
3169 { 'Q', ACTION_RELOAD },
3170 { 'u', ACTION_REEXEC },
3171 { 'U', ACTION_REEXEC }
3172 };
3173
3174 unsigned i;
3175 int c;
3176
3177 assert(argc >= 0);
3178 assert(argv);
3179
3180 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
3181 switch (c) {
3182
3183 case ARG_HELP:
3184 telinit_help();
3185 return 0;
3186
514f4ef5
LP		 3187 case ARG_NO_WALL:
3188 arg_no_wall = true;
3189 break;
3190
e4b61340
LP		 3191 case '?':
3192 return -EINVAL;
3193
3194 default:
3195 log_error("Unknown option code %c", c);
3196 return -EINVAL;
3197 }
3198 }
3199
3200 if (optind >= argc) {
2f02ce40 3201 telinit_help();
e4b61340
LP		 3202 return -EINVAL;
3203 }
3204
3205 if (optind + 1 < argc) {
3206 log_error("Too many arguments.");
3207 return -EINVAL;
3208 }
3209
3210 if (strlen(argv[optind]) != 1) {
3211 log_error("Expected single character argument.");
3212 return -EINVAL;
3213 }
3214
3215 for (i = 0; i < ELEMENTSOF(table); i++)
3216 if (table[i].from == argv[optind][0])
3217 break;
3218
3219 if (i >= ELEMENTSOF(table)) {
3220 log_error("Unknown command %s.", argv[optind]);
3221 return -EINVAL;
3222 }
3223
3224 arg_action = table[i].to;
3225
3226 optind ++;
3227
3228 return 1;
3229}
3230
3231static int runlevel_parse_argv(int argc, char *argv[]) {
3232
3233 enum {
3234 ARG_HELP = 0x100,
3235 };
3236
3237 static const struct option options[] = {
3238 { "help", no_argument, NULL, ARG_HELP },
3239 { NULL, 0, NULL, 0 }
3240 };
3241
3242 int c;
3243
3244 assert(argc >= 0);
3245 assert(argv);
3246
3247 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
3248 switch (c) {
3249
3250 case ARG_HELP:
3251 runlevel_help();
3252 return 0;
3253
3254 case '?':
3255 return -EINVAL;
3256
3257 default:
3258 log_error("Unknown option code %c", c);
3259 return -EINVAL;
3260 }
3261 }
3262
3263 if (optind < argc) {
3264 log_error("Too many arguments.");
3265 return -EINVAL;
3266 }
3267
3268 return 1;
3269}
3270
3271static int parse_argv(int argc, char *argv[]) {
3272 assert(argc >= 0);
3273 assert(argv);
3274
3275 if (program_invocation_short_name) {
3276
3277 if (strstr(program_invocation_short_name, "halt")) {
3278 arg_action = ACTION_HALT;
3279 return halt_parse_argv(argc, argv);
3280 } else if (strstr(program_invocation_short_name, "poweroff")) {
3281 arg_action = ACTION_POWEROFF;
3282 return halt_parse_argv(argc, argv);
3283 } else if (strstr(program_invocation_short_name, "reboot")) {
3284 arg_action = ACTION_REBOOT;
3285 return halt_parse_argv(argc, argv);
3286 } else if (strstr(program_invocation_short_name, "shutdown")) {
3287 arg_action = ACTION_POWEROFF;
3288 return shutdown_parse_argv(argc, argv);
3289 } else if (strstr(program_invocation_short_name, "init")) {
3290 arg_action = ACTION_INVALID;
3291 return telinit_parse_argv(argc, argv);
3292 } else if (strstr(program_invocation_short_name, "runlevel")) {
3293 arg_action = ACTION_RUNLEVEL;
3294 return runlevel_parse_argv(argc, argv);
3295 }
3296 }
3297
3298 arg_action = ACTION_SYSTEMCTL;
3299 return systemctl_parse_argv(argc, argv);
3300}
3301
d55ae9e6 3302static int action_to_runlevel(void) {
eb22ac37
LP		 3303
3304 static const char table[_ACTION_MAX] = {
3305 [ACTION_HALT] = '0',
3306 [ACTION_POWEROFF] = '0',
3307 [ACTION_REBOOT] = '6',
3308 [ACTION_RUNLEVEL2] = '2',
3309 [ACTION_RUNLEVEL3] = '3',
3310 [ACTION_RUNLEVEL4] = '4',
3311 [ACTION_RUNLEVEL5] = '5',
3312 [ACTION_RESCUE] = '1'
3313 };
3314
d55ae9e6
LP		 3315 assert(arg_action < _ACTION_MAX);
3316
3317 return table[arg_action];
3318}
3319
f1c5860b 3320static int talk_upstart(void) {
d55ae9e6
LP		 3321 DBusMessage *m = NULL, *reply = NULL;
3322 DBusError error;
3323 int previous, rl, r;
3324 char
3325 env1_buf[] = "RUNLEVEL=X",
3326 env2_buf[] = "PREVLEVEL=X";
3327 char *env1 = env1_buf, *env2 = env2_buf;
3328 const char *emit = "runlevel";
3329 dbus_bool_t b_false = FALSE;
3330 DBusMessageIter iter, sub;
f1c5860b 3331 DBusConnection *bus;
d55ae9e6
LP		 3332
3333 dbus_error_init(&error);
3334
3335 if (!(rl = action_to_runlevel()))
3336 return 0;
3337
3338 if (utmp_get_runlevel(&previous, NULL) < 0)
3339 previous = 'N';
3340
b574246b 3341 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 3342 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
3343 r = 0;
3344 goto finish;
3345 }
3346
3347 log_error("Failed to connect to Upstart bus: %s", error.message);
3348 r = -EIO;
3349 goto finish;
3350 }
3351
3352 if ((r = bus_check_peercred(bus)) < 0) {
3353 log_error("Failed to verify owner of bus.");
3354 goto finish;
3355 }
3356
d55ae9e6
LP		 3357 if (!(m = dbus_message_new_method_call(
3358 "com.ubuntu.Upstart",
3359 "/com/ubuntu/Upstart",
3360 "com.ubuntu.Upstart0_6",
3361 "EmitEvent"))) {
3362
3363 log_error("Could not allocate message.");
f1c5860b
LP		 3364 r = -ENOMEM;
3365 goto finish;
d55ae9e6
LP		 3366 }
3367
3368 dbus_message_iter_init_append(m, &iter);
3369
3370 env1_buf[sizeof(env1_buf)-2] = rl;
3371 env2_buf[sizeof(env2_buf)-2] = previous;
3372
3373 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
3374 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
3375 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
3376 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
3377 !dbus_message_iter_close_container(&iter, &sub) ||
3378 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
3379 log_error("Could not append arguments to message.");
3380 r = -ENOMEM;
3381 goto finish;
3382 }
3383
3384 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3385
3386 if (error_is_no_service(&error)) {
3387 r = 0;
3388 goto finish;
3389 }
3390
3391 log_error("Failed to issue method call: %s", error.message);
3392 r = -EIO;
3393 goto finish;
3394 }
3395
3396 r = 1;
3397
3398finish:
3399 if (m)
3400 dbus_message_unref(m);
3401
3402 if (reply)
3403 dbus_message_unref(reply);
3404
b574246b
LP		 3405 if (bus) {
3406 dbus_connection_close(bus);
f1c5860b 3407 dbus_connection_unref(bus);
b574246b 3408 }
f1c5860b 3409
d55ae9e6
LP		 3410 dbus_error_free(&error);
3411
3412 return r;
3413}
3414
3415static int talk_initctl(void) {
eb22ac37
LP		 3416 struct init_request request;
3417 int r, fd;
d55ae9e6 3418 char rl;
eb22ac37 3419
d55ae9e6 3420 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 3421 return 0;
3422
3423 zero(request);
3424 request.magic = INIT_MAGIC;
3425 request.sleeptime = 0;
3426 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 3427 request.runlevel = rl;
3428
3429 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
3430
3431 if (errno == ENOENT)
3432 return 0;
eb22ac37 3433
d55ae9e6 3434 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 3435 return -errno;
d55ae9e6 3436 }
eb22ac37 3437
d55ae9e6 3438 errno = 0;
eb22ac37
LP		 3439 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
3440 close_nointr_nofail(fd);
3441
d55ae9e6
LP		 3442 if (r < 0) {
3443 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 3444 return errno ? -errno : -EIO;
d55ae9e6 3445 }
eb22ac37
LP		 3446
3447 return 1;
e4b61340
LP		 3448}
3449
3450static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) {
7e4249b9 3451
7e4249b9
LP		 3452 static const struct {
3453 const char* verb;
3454 const enum {
3455 MORE,
3456 LESS,
3457 EQUAL
3458 } argc_cmp;
3459 const int argc;
3460 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
3461 } verbs[] = {
3462 { "list-units", LESS, 1, list_units },
3463 { "list-jobs", EQUAL, 1, list_jobs },
3464 { "clear-jobs", EQUAL, 1, clear_jobs },
3465 { "load", MORE, 2, load_unit },
3466 { "cancel", MORE, 2, cancel_job },
3467 { "start", MORE, 2, start_unit },
3468 { "stop", MORE, 2, start_unit },
3469 { "reload", MORE, 2, start_unit },
3470 { "restart", MORE, 2, start_unit },
6f28c033
LP		 3471 { "try-restart", MORE, 2, start_unit },
3472 { "reload-or-restart", MORE, 2, start_unit },
3473 { "reload-or-try-restart", MORE, 2, start_unit },
e4b61340 3474 { "isolate", EQUAL, 2, start_unit },
0183528f 3475 { "check", MORE, 2, check_unit },
48220598 3476 { "show", MORE, 1, show },
61cbdc4b 3477 { "status", MORE, 2, show },
7e4249b9
LP		 3478 { "monitor", EQUAL, 1, monitor },
3479 { "dump", EQUAL, 1, dump },
4445a875 3480 { "dot", EQUAL, 1, dot },
7e4249b9 3481 { "snapshot", LESS, 2, snapshot },
6759e7a7 3482 { "delete", MORE, 2, delete_snapshot },
7e4249b9
LP		 3483 { "daemon-reload", EQUAL, 1, clear_jobs },
3484 { "daemon-reexec", EQUAL, 1, clear_jobs },
3485 { "daemon-exit", EQUAL, 1, clear_jobs },
3486 { "show-environment", EQUAL, 1, show_enviroment },
3487 { "set-environment", MORE, 2, set_environment },
3488 { "unset-environment", MORE, 2, set_environment },
514f4ef5
LP		 3489 { "halt", EQUAL, 1, start_special },
3490 { "poweroff", EQUAL, 1, start_special },
3491 { "reboot", EQUAL, 1, start_special },
3492 { "default", EQUAL, 1, start_special },
3493 { "rescue", EQUAL, 1, start_special },
4445a875 3494 { "emergency", EQUAL, 1, start_special },
7e4249b9
LP		 3495 };
3496
e4b61340 3497 int left;
7e4249b9 3498 unsigned i;
7e4249b9 3499
e4b61340
LP		 3500 assert(bus);
3501 assert(argc >= 0);
3502 assert(argv);
7e4249b9
LP		 3503
3504 left = argc - optind;
3505
3506 if (left <= 0)
3507 /* Special rule: no arguments means "list-units" */
3508 i = 0;
3509 else {
0183528f
LP		 3510 if (streq(argv[optind], "help")) {
3511 systemctl_help();
3512 return 0;
3513 }
3514
7e4249b9
LP		 3515 for (i = 0; i < ELEMENTSOF(verbs); i++)
3516 if (streq(argv[optind], verbs[i].verb))
3517 break;
3518
3519 if (i >= ELEMENTSOF(verbs)) {
3520 log_error("Unknown operation %s", argv[optind]);
e4b61340 3521 return -EINVAL;
7e4249b9
LP		 3522 }
3523 }
3524
3525 switch (verbs[i].argc_cmp) {
3526
3527 case EQUAL:
3528 if (left != verbs[i].argc) {
3529 log_error("Invalid number of arguments.");
e4b61340 3530 return -EINVAL;
7e4249b9
LP		 3531 }
3532
3533 break;
3534
3535 case MORE:
3536 if (left < verbs[i].argc) {
3537 log_error("Too few arguments.");
e4b61340 3538 return -EINVAL;
7e4249b9
LP		 3539 }
3540
3541 break;
3542
3543 case LESS:
3544 if (left > verbs[i].argc) {
3545 log_error("Too many arguments.");
e4b61340 3546 return -EINVAL;
7e4249b9
LP		 3547 }
3548
3549 break;
3550
3551 default:
3552 assert_not_reached("Unknown comparison operator.");
3553 }
3554
e4b61340
LP		 3555 return verbs[i].dispatch(bus, argv + optind, left);
3556}
3557
3558static int reload_with_fallback(DBusConnection *bus) {
3559 int r;
3560
3561 if (bus) {
3562 /* First, try systemd via D-Bus. */
3563 if ((r = clear_jobs(bus, NULL, 0)) > 0)
3564 return 0;
3565 }
3566
3567 /* Nothing else worked, so let's try signals */
3568 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
3569
3570 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
3571 log_error("kill() failed: %m");
3572 return -errno;
3573 }
3574
3575 return 0;
3576}
3577
3578static int start_with_fallback(DBusConnection *bus) {
3579 int r;
3580
ef2f1067 3581
e4b61340
LP		 3582 if (bus) {
3583 /* First, try systemd via D-Bus. */
3584 if ((r = start_unit(bus, NULL, 0)) > 0)
983d9c90 3585 goto done;
e4b61340
LP		 3586
3587 /* Hmm, talking to systemd via D-Bus didn't work. Then
3588 * let's try to talk to Upstart via D-Bus. */
f1c5860b 3589 if ((r = talk_upstart()) > 0)
983d9c90 3590 goto done;
e4b61340
LP		 3591 }
3592
3593 /* Nothing else worked, so let's try
3594 * /dev/initctl */
d55ae9e6 3595 if ((r = talk_initctl()) != 0)
983d9c90 3596 goto done;
d55ae9e6
LP		 3597
3598 log_error("Failed to talk to init daemon.");
3599 return -EIO;
983d9c90
LP		 3600
3601done:
3602 warn_wall(arg_action);
3603 return 0;
e4b61340
LP		 3604}
3605
3606static int halt_main(DBusConnection *bus) {
3607 int r;
3608
bc8c2f5c
LP		 3609 if (geteuid() != 0) {
3610 log_error("Must to be root.");
3611 return -EPERM;
3612 }
3613
d47b555b 3614 if (!arg_dry && !arg_immediate)
e4b61340
LP		 3615 return start_with_fallback(bus);
3616
3617 if (!arg_no_wtmp)
3618 if ((r = utmp_put_shutdown(0)) < 0)
3619 log_warning("Failed to write utmp record: %s", strerror(-r));
3620
3621 if (!arg_no_sync)
3622 sync();
3623
3624 if (arg_dry)
3625 return 0;
3626
3627 /* Make sure C-A-D is handled by the kernel from this
3628 * point on... */
3629 reboot(RB_ENABLE_CAD);
3630
3631 switch (arg_action) {
3632
3633 case ACTION_HALT:
3634 log_info("Halting");
3635 reboot(RB_HALT_SYSTEM);
3636 break;
3637
3638 case ACTION_POWEROFF:
3639 log_info("Powering off");
3640 reboot(RB_POWER_OFF);
3641 break;
3642
3643 case ACTION_REBOOT:
3644 log_info("Rebooting");
3645 reboot(RB_AUTOBOOT);
3646 break;
3647
3648 default:
3649 assert_not_reached("Unknown halt action.");
3650 }
3651
3652 /* We should never reach this. */
3653 return -ENOSYS;
3654}
3655
3656static int runlevel_main(void) {
3657 int r, runlevel, previous;
3658
3659 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
3660 printf("unknown");
3661 return r;
3662 }
3663
3664 printf("%c %c\n",
3665 previous <= 0 ? 'N' : previous,
3666 runlevel <= 0 ? 'N' : runlevel);
3667
3668 return 0;
3669}
3670
3671int main(int argc, char*argv[]) {
3672 int r, retval = 1;
3673 DBusConnection *bus = NULL;
3674 DBusError error;
3675
3676 dbus_error_init(&error);
3677
3678 log_parse_environment();
3679
3680 if ((r = parse_argv(argc, argv)) < 0)
3681 goto finish;
3682 else if (r == 0) {
3683 retval = 0;
7e4249b9
LP		 3684 goto finish;
3685 }
3686
e4b61340
LP		 3687 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
3688 * let's shortcut this */
3689 if (arg_action == ACTION_RUNLEVEL) {
3690 retval = runlevel_main() < 0;
3691 goto finish;
3692 }
3693
f4579ce7 3694 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 3695
3696 switch (arg_action) {
3697
3698 case ACTION_SYSTEMCTL: {
3699
3700 if (!bus) {
3701 log_error("Failed to get D-Bus connection: %s", error.message);
3702 goto finish;
3703 }
3704
3705 retval = systemctl_main(bus, argc, argv) < 0;
3706 break;
3707 }
3708
3709 case ACTION_HALT:
3710 case ACTION_POWEROFF:
3711 case ACTION_REBOOT:
3712 retval = halt_main(bus) < 0;
3713 break;
3714
e4b61340
LP		 3715 case ACTION_RUNLEVEL2:
3716 case ACTION_RUNLEVEL3:
3717 case ACTION_RUNLEVEL4:
3718 case ACTION_RUNLEVEL5:
3719 case ACTION_RESCUE:
514f4ef5 3720 case ACTION_EMERGENCY:
eb22ac37 3721 case ACTION_DEFAULT:
e4b61340
LP		 3722 retval = start_with_fallback(bus) < 0;
3723 break;
7e4249b9 3724
e4b61340
LP		 3725 case ACTION_RELOAD:
3726 case ACTION_REEXEC:
3727 retval = reload_with_fallback(bus) < 0;
3728 break;
3729
eb22ac37
LP		 3730 case ACTION_INVALID:
3731 case ACTION_RUNLEVEL:
e4b61340
LP		 3732 default:
3733 assert_not_reached("Unknown action");
3734 }
7e4249b9
LP		 3735
3736finish:
3737
b574246b
LP		 3738 if (bus) {
3739 dbus_connection_close(bus);
7e4249b9 3740 dbus_connection_unref(bus);
b574246b 3741 }
7e4249b9 3742
e4b61340
LP		 3743 dbus_error_free(&error);
3744
7e4249b9
LP		 3745 dbus_shutdown();
3746
3747 return retval;
3748}
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