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man: extend commenting of .spec file snippets a bit
[thirdparty/systemd.git] / src / systemctl.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
7e4249b9
LP		 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>
ee5762e3 33#include <sys/stat.h>
0e098b15 34#include <stddef.h>
7e4249b9
LP		 35
36#include <dbus/dbus.h>
37
38#include "log.h"
39#include "util.h"
40#include "macro.h"
41#include "set.h"
e4b61340 42#include "utmp-wtmp.h"
514f4ef5 43#include "special.h"
eb22ac37 44#include "initreq.h"
e4a9373f 45#include "strv.h"
9a1ac7b9 46#include "dbus-common.h"
ab35fb1b 47#include "cgroup-show.h"
c6c18be3 48#include "cgroup-util.h"
582a507f 49#include "list.h"
ee5762e3
LP		 50#include "path-lookup.h"
51#include "conf-parser.h"
52#include "sd-daemon.h"
f6144808 53#include "shutdownd.h"
d06dacd0 54#include "exit-status.h"
22f4096c 55#include "bus-errors.h"
7d568925 56#include "build.h"
71fad675 57#include "unit-name.h"
7e4249b9
LP		 58
59static const char *arg_type = NULL;
ea4a240d 60static char **arg_property = NULL;
7e4249b9 61static bool arg_all = false;
90d473a1 62static bool arg_fail = false;
7e4249b9 63static bool arg_session = false;
ee5762e3 64static bool arg_global = false;
e4b61340 65static bool arg_immediate = false;
ee5762e3 66static bool arg_no_block = false;
e4b61340
LP		 67static bool arg_no_wtmp = false;
68static bool arg_no_sync = false;
514f4ef5 69static bool arg_no_wall = false;
ee5762e3 70static bool arg_no_reload = false;
e4b61340 71static bool arg_dry = false;
0183528f 72static bool arg_quiet = false;
ee5762e3
LP		 73static bool arg_full = false;
74static bool arg_force = false;
75static bool arg_defaults = false;
e4b61340 76static char **arg_wall = NULL;
f6144808 77static usec_t arg_when = 0;
4445a875 78static enum action {
e4b61340
LP		 79 ACTION_INVALID,
80 ACTION_SYSTEMCTL,
81 ACTION_HALT,
82 ACTION_POWEROFF,
83 ACTION_REBOOT,
20b09ca7
LP		 84 ACTION_KEXEC,
85 ACTION_EXIT,
e4b61340
LP		 86 ACTION_RUNLEVEL2,
87 ACTION_RUNLEVEL3,
88 ACTION_RUNLEVEL4,
89 ACTION_RUNLEVEL5,
90 ACTION_RESCUE,
514f4ef5
LP		 91 ACTION_EMERGENCY,
92 ACTION_DEFAULT,
e4b61340
LP		 93 ACTION_RELOAD,
94 ACTION_REEXEC,
95 ACTION_RUNLEVEL,
f6144808 96 ACTION_CANCEL_SHUTDOWN,
e4b61340
LP		 97 _ACTION_MAX
98} arg_action = ACTION_SYSTEMCTL;
4445a875
LP		 99static enum dot {
100 DOT_ALL,
101 DOT_ORDER,
102 DOT_REQUIRE
103} arg_dot = DOT_ALL;
e4b61340 104
f4579ce7
LP		 105static bool private_bus = false;
106
ee5762e3
LP		 107static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
108
2ee68f72 109static bool on_tty(void) {
2cc59dbf
LP		 110 static int t = -1;
111
112 if (_unlikely_(t < 0))
113 t = isatty(STDOUT_FILENO) > 0;
114
2ee68f72
LP		 115 return t;
116}
117
118static const char *ansi_highlight(bool b) {
119
120 if (!on_tty())
2cc59dbf
LP		 121 return "";
122
123 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
124}
125
2ee68f72
LP		 126static const char *ansi_highlight_green(bool b) {
127
128 if (!on_tty())
129 return "";
130
131 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
132}
133
f73e33d9 134static bool error_is_no_service(const DBusError *error) {
514f4ef5
LP		 135 assert(error);
136
e4b61340
LP		 137 if (!dbus_error_is_set(error))
138 return false;
139
140 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
141 return true;
142
143 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
144 return true;
145
146 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
147}
7e4249b9 148
22f4096c
LP		 149static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
150 assert(error);
151
152 if (!dbus_error_is_set(error))
153 return r;
154
155 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
156 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
157 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
158 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
159 return EXIT_NOPERMISSION;
160
161 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
162 return EXIT_NOTINSTALLED;
163
164 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
165 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
166 return EXIT_NOTIMPLEMENTED;
167
168 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
169 return EXIT_NOTCONFIGURED;
170
171 if (r != 0)
172 return r;
173
174 return EXIT_FAILURE;
175}
176
7e4249b9
LP		 177static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
178
514f4ef5
LP		 179 assert(iter);
180 assert(data);
181
7e4249b9
LP		 182 if (dbus_message_iter_get_arg_type(iter) != type)
183 return -EIO;
184
185 dbus_message_iter_get_basic(iter, data);
186
187 if (!dbus_message_iter_next(iter) != !next)
188 return -EIO;
189
190 return 0;
191}
192
514f4ef5 193static void warn_wall(enum action action) {
ef2f1067 194 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 195 [ACTION_HALT] = "The system is going down for system halt NOW!",
196 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
197 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
20b09ca7 198 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
514f4ef5
LP		 199 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
200 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 201 };
202
514f4ef5
LP		 203 if (arg_no_wall)
204 return;
205
e4a9373f
LP		 206 if (arg_wall) {
207 char *p;
208
209 if (!(p = strv_join(arg_wall, " "))) {
210 log_error("Failed to join strings.");
211 return;
212 }
213
214 if (*p) {
215 utmp_wall(p);
216 free(p);
217 return;
218 }
219
220 free(p);
221 }
222
514f4ef5 223 if (!table[action])
ef2f1067
LP		 224 return;
225
514f4ef5 226 utmp_wall(table[action]);
ef2f1067
LP		 227}
228
36c32ba2
LP		 229struct unit_info {
230 const char *id;
231 const char *description;
232 const char *load_state;
233 const char *active_state;
234 const char *sub_state;
235 const char *following;
236 const char *unit_path;
237 uint32_t job_id;
238 const char *job_type;
239 const char *job_path;
240};
241
242static int compare_unit_info(const void *a, const void *b) {
243 const char *d1, *d2;
244 const struct unit_info *u = a, *v = b;
245
246 d1 = strrchr(u->id, '.');
247 d2 = strrchr(v->id, '.');
248
249 if (d1 && d2) {
250 int r;
251
a2a3a5b9 252 if ((r = strcasecmp(d1, d2)) != 0)
36c32ba2
LP		 253 return r;
254 }
255
a2a3a5b9 256 return strcasecmp(u->id, v->id);
36c32ba2
LP		 257}
258
33330222
ZJS		 259static bool output_show_job(const struct unit_info *u) {
260 const char *dot;
b036fc00 261
33330222
ZJS		 262 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
263 streq(dot+1, arg_type))) &&
264 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
265}
266
eb68c413 267static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
33330222 268 unsigned active_len, sub_len, job_len;
b036fc00 269 const struct unit_info *u;
33330222 270
b036fc00
LP		 271 active_len = sizeof("ACTIVE")-1;
272 sub_len = sizeof("SUB")-1;
273 job_len = sizeof("JOB")-1;
274
275 for (u = unit_infos; u < unit_infos + c; u++) {
276 if (!output_show_job(u))
277 continue;
278
279 active_len = MAX(active_len, strlen(u->active_state));
280 sub_len = MAX(sub_len, strlen(u->sub_state));
281 if (u->job_id != 0)
282 job_len = MAX(job_len, strlen(u->job_type));
33330222
ZJS		 283 }
284
eb68c413 285 if (on_tty()) {
33330222
ZJS		 286 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
287 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
eb68c413 288 if (columns() >= 80+12 || arg_full)
33330222 289 printf(" %s\n", "DESCRIPTION");
eb68c413 290 else
33330222 291 printf("\n");
eb68c413
ZJS		 292 }
293
b036fc00
LP		 294 for (u = unit_infos; u < unit_infos + c; u++) {
295 char *e;
296 int a = 0, b = 0;
297 const char *on_loaded, *off_loaded;
298 const char *on_active, *off_active;
299
300 if (!output_show_job(u))
301 continue;
302
00dc5d76
LP		 303 if (!streq(u->load_state, "loaded") &&
304 !streq(u->load_state, "banned")) {
b036fc00
LP		 305 on_loaded = ansi_highlight(true);
306 off_loaded = ansi_highlight(false);
307 } else
308 on_loaded = off_loaded = "";
309
310 if (streq(u->active_state, "failed")) {
311 on_active = ansi_highlight(true);
312 off_active = ansi_highlight(false);
313 } else
314 on_active = off_active = "";
eb68c413 315
b036fc00 316 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
eb68c413 317
b036fc00
LP		 318 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
319 e ? e : u->id,
320 on_loaded, u->load_state, off_loaded,
321 on_active, active_len, u->active_state,
322 sub_len, u->sub_state, off_active,
323 &a);
eb68c413 324
b036fc00
LP		 325 free(e);
326
327 a -= strlen(on_loaded) + strlen(off_loaded);
328 a -= strlen(on_active) + strlen(off_active);
329
330 if (u->job_id != 0)
331 printf(" %-*s", job_len, u->job_type);
332 else
333 b = 1 + job_len;
334
335 if (a + b + 1 < columns()) {
336 if (u->job_id == 0)
337 printf(" %-*s", job_len, "");
338
339 if (arg_full)
340 printf(" %s", u->description);
341 else
342 printf(" %.*s", columns() - a - b - 1, u->description);
eb68c413 343 }
b036fc00
LP		 344
345 fputs("\n", stdout);
eb68c413
ZJS		 346 }
347
9b2fcafb 348 if (on_tty()) {
eb68c413
ZJS		 349 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
350 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
351 "SUB = The low-level unit activation state, values depend on unit type.\n"
352 "JOB = Pending job for the unit.\n");
353
354 if (arg_all)
355 printf("\n%u units listed.\n", c);
356 else
357 printf("\n%u units listed. Pass --all to see inactive units, too.\n", c);
358 }
359}
360
7e4249b9
LP		 361static int list_units(DBusConnection *bus, char **args, unsigned n) {
362 DBusMessage *m = NULL, *reply = NULL;
363 DBusError error;
364 int r;
365 DBusMessageIter iter, sub, sub2;
eb68c413 366 unsigned c = 0, n_units = 0;
36c32ba2 367 struct unit_info *unit_infos = NULL;
7e4249b9
LP		 368
369 dbus_error_init(&error);
370
514f4ef5
LP		 371 assert(bus);
372
7e4249b9
LP		 373 if (!(m = dbus_message_new_method_call(
374 "org.freedesktop.systemd1",
375 "/org/freedesktop/systemd1",
376 "org.freedesktop.systemd1.Manager",
377 "ListUnits"))) {
378 log_error("Could not allocate message.");
379 return -ENOMEM;
380 }
381
382 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 383 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 384 r = -EIO;
385 goto finish;
386 }
387
388 if (!dbus_message_iter_init(reply, &iter) ||
389 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
390 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
391 log_error("Failed to parse reply.");
392 r = -EIO;
393 goto finish;
394 }
395
396 dbus_message_iter_recurse(&iter, &sub);
397
7e4249b9 398 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
36c32ba2 399 struct unit_info *u;
7e4249b9
LP		 400
401 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
402 log_error("Failed to parse reply.");
403 r = -EIO;
404 goto finish;
405 }
406
36c32ba2
LP		 407 if (c >= n_units) {
408 struct unit_info *w;
409
410 n_units = MAX(2*c, 16);
411 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
412
413 if (!w) {
414 log_error("Failed to allocate unit array.");
415 r = -ENOMEM;
416 goto finish;
417 }
418
419 unit_infos = w;
420 }
421
422 u = unit_infos+c;
423
7e4249b9
LP		 424 dbus_message_iter_recurse(&sub, &sub2);
425
36c32ba2
LP		 426 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
427 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
428 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
429 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
430 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
431 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
432 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
433 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
434 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
435 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
7e4249b9
LP		 436 log_error("Failed to parse reply.");
437 r = -EIO;
438 goto finish;
439 }
440
36c32ba2
LP		 441 dbus_message_iter_next(&sub);
442 c++;
443 }
444
445 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
eb68c413 446 output_units_list(unit_infos, c);
4445a875
LP		 447
448 r = 0;
449
450finish:
451 if (m)
452 dbus_message_unref(m);
453
454 if (reply)
455 dbus_message_unref(reply);
456
36c32ba2
LP		 457 free(unit_infos);
458
4445a875
LP		 459 dbus_error_free(&error);
460
461 return r;
462}
463
464static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
465 static const char * const colors[] = {
466 "Requires", "[color=\"black\"]",
467 "RequiresOverridable", "[color=\"black\"]",
468 "Requisite", "[color=\"darkblue\"]",
469 "RequisiteOverridable", "[color=\"darkblue\"]",
470 "Wants", "[color=\"darkgrey\"]",
471 "Conflicts", "[color=\"red\"]",
69dd2852 472 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 473 "After", "[color=\"green\"]"
474 };
475
476 const char *c = NULL;
477 unsigned i;
478
479 assert(name);
480 assert(prop);
481 assert(iter);
482
483 for (i = 0; i < ELEMENTSOF(colors); i += 2)
484 if (streq(colors[i], prop)) {
485 c = colors[i+1];
486 break;
487 }
488
489 if (!c)
490 return 0;
491
492 if (arg_dot != DOT_ALL)
493 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
494 return 0;
495
496 switch (dbus_message_iter_get_arg_type(iter)) {
497
498 case DBUS_TYPE_ARRAY:
499
500 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
501 DBusMessageIter sub;
502
503 dbus_message_iter_recurse(iter, &sub);
504
505 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
506 const char *s;
507
508 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
509 dbus_message_iter_get_basic(&sub, &s);
510 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
511
512 dbus_message_iter_next(&sub);
513 }
514
515 return 0;
516 }
517 }
518
519 return 0;
520}
521
522static int dot_one(DBusConnection *bus, const char *name, const char *path) {
523 DBusMessage *m = NULL, *reply = NULL;
524 const char *interface = "org.freedesktop.systemd1.Unit";
525 int r;
526 DBusError error;
527 DBusMessageIter iter, sub, sub2, sub3;
528
529 assert(bus);
530 assert(path);
531
532 dbus_error_init(&error);
533
534 if (!(m = dbus_message_new_method_call(
535 "org.freedesktop.systemd1",
536 path,
537 "org.freedesktop.DBus.Properties",
538 "GetAll"))) {
539 log_error("Could not allocate message.");
540 r = -ENOMEM;
541 goto finish;
542 }
543
544 if (!dbus_message_append_args(m,
545 DBUS_TYPE_STRING, &interface,
546 DBUS_TYPE_INVALID)) {
547 log_error("Could not append arguments to message.");
548 r = -ENOMEM;
549 goto finish;
550 }
551
552 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 553 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 554 r = -EIO;
555 goto finish;
556 }
557
558 if (!dbus_message_iter_init(reply, &iter) ||
559 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
560 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
561 log_error("Failed to parse reply.");
562 r = -EIO;
563 goto finish;
564 }
565
566 dbus_message_iter_recurse(&iter, &sub);
567
568 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
569 const char *prop;
570
571 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
572 log_error("Failed to parse reply.");
573 r = -EIO;
574 goto finish;
575 }
576
577 dbus_message_iter_recurse(&sub, &sub2);
578
579 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
580 log_error("Failed to parse reply.");
581 r = -EIO;
582 goto finish;
583 }
584
585 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
586 log_error("Failed to parse reply.");
587 r = -EIO;
588 goto finish;
589 }
590
591 dbus_message_iter_recurse(&sub2, &sub3);
592
593 if (dot_one_property(name, prop, &sub3)) {
594 log_error("Failed to parse reply.");
595 r = -EIO;
596 goto finish;
597 }
598
599 dbus_message_iter_next(&sub);
600 }
601
e364ad06
LP		 602 r = 0;
603
4445a875
LP		 604finish:
605 if (m)
606 dbus_message_unref(m);
607
608 if (reply)
609 dbus_message_unref(reply);
610
611 dbus_error_free(&error);
612
613 return r;
614}
615
616static int dot(DBusConnection *bus, char **args, unsigned n) {
617 DBusMessage *m = NULL, *reply = NULL;
618 DBusError error;
619 int r;
620 DBusMessageIter iter, sub, sub2;
621
622 dbus_error_init(&error);
623
624 assert(bus);
625
626 if (!(m = dbus_message_new_method_call(
627 "org.freedesktop.systemd1",
628 "/org/freedesktop/systemd1",
629 "org.freedesktop.systemd1.Manager",
630 "ListUnits"))) {
631 log_error("Could not allocate message.");
632 return -ENOMEM;
633 }
634
635 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 636 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 637 r = -EIO;
638 goto finish;
639 }
640
641 if (!dbus_message_iter_init(reply, &iter) ||
642 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
643 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
644 log_error("Failed to parse reply.");
645 r = -EIO;
646 goto finish;
647 }
648
649 printf("digraph systemd {\n");
650
651 dbus_message_iter_recurse(&iter, &sub);
652 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 653 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 654
655 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
656 log_error("Failed to parse reply.");
657 r = -EIO;
658 goto finish;
659 }
660
661 dbus_message_iter_recurse(&sub, &sub2);
662
663 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
664 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
665 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
666 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
667 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 668 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 669 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
670 log_error("Failed to parse reply.");
671 r = -EIO;
672 goto finish;
673 }
674
675 if ((r = dot_one(bus, id, unit_path)) < 0)
676 goto finish;
677
678 /* printf("\t\"%s\";\n", id); */
679 dbus_message_iter_next(&sub);
680 }
681
682 printf("}\n");
683
684 log_info(" Color legend: black = Requires\n"
685 " dark blue = Requisite\n"
686 " dark grey = Wants\n"
687 " red = Conflicts\n"
688 " green = After\n");
689
690 if (isatty(fileno(stdout)))
691 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
692 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 693
694 r = 0;
695
696finish:
697 if (m)
698 dbus_message_unref(m);
699
700 if (reply)
701 dbus_message_unref(reply);
702
703 dbus_error_free(&error);
704
705 return r;
706}
707
708static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
709 DBusMessage *m = NULL, *reply = NULL;
710 DBusError error;
711 int r;
712 DBusMessageIter iter, sub, sub2;
713 unsigned k = 0;
714
715 dbus_error_init(&error);
716
514f4ef5
LP		 717 assert(bus);
718
7e4249b9
LP		 719 if (!(m = dbus_message_new_method_call(
720 "org.freedesktop.systemd1",
721 "/org/freedesktop/systemd1",
722 "org.freedesktop.systemd1.Manager",
723 "ListJobs"))) {
724 log_error("Could not allocate message.");
725 return -ENOMEM;
726 }
727
728 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 729 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 730 r = -EIO;
731 goto finish;
732 }
733
734 if (!dbus_message_iter_init(reply, &iter) ||
735 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
736 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
737 log_error("Failed to parse reply.");
738 r = -EIO;
739 goto finish;
740 }
741
742 dbus_message_iter_recurse(&iter, &sub);
743
f73e33d9
LP		 744 if (isatty(STDOUT_FILENO))
745 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
7e4249b9
LP		 746
747 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
748 const char *name, *type, *state, *job_path, *unit_path;
749 uint32_t id;
8fe914ec 750 char *e;
7e4249b9
LP		 751
752 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
753 log_error("Failed to parse reply.");
754 r = -EIO;
755 goto finish;
756 }
757
758 dbus_message_iter_recurse(&sub, &sub2);
759
760 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
761 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
762 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
763 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
764 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
765 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
766 log_error("Failed to parse reply.");
767 r = -EIO;
768 goto finish;
769 }
770
f73e33d9
LP		 771 e = arg_full ? NULL : ellipsize(name, 25, 33);
772 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
8fe914ec
LP		 773 free(e);
774
7e4249b9
LP		 775 k++;
776
777 dbus_message_iter_next(&sub);
778 }
779
f73e33d9
LP		 780 if (isatty(STDOUT_FILENO))
781 printf("\n%u jobs listed.\n", k);
782
7e4249b9
LP		 783 r = 0;
784
785finish:
786 if (m)
787 dbus_message_unref(m);
788
789 if (reply)
790 dbus_message_unref(reply);
791
792 dbus_error_free(&error);
793
794 return r;
795}
796
797static int load_unit(DBusConnection *bus, char **args, unsigned n) {
798 DBusMessage *m = NULL, *reply = NULL;
799 DBusError error;
800 int r;
801 unsigned i;
802
803 dbus_error_init(&error);
804
514f4ef5
LP		 805 assert(bus);
806 assert(args);
807
7e4249b9
LP		 808 for (i = 1; i < n; i++) {
809
810 if (!(m = dbus_message_new_method_call(
811 "org.freedesktop.systemd1",
812 "/org/freedesktop/systemd1",
813 "org.freedesktop.systemd1.Manager",
814 "LoadUnit"))) {
815 log_error("Could not allocate message.");
816 r = -ENOMEM;
817 goto finish;
818 }
819
820 if (!dbus_message_append_args(m,
821 DBUS_TYPE_STRING, &args[i],
822 DBUS_TYPE_INVALID)) {
823 log_error("Could not append arguments to message.");
824 r = -ENOMEM;
825 goto finish;
826 }
827
828 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 829 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 830 r = -EIO;
831 goto finish;
832 }
833
834 dbus_message_unref(m);
835 dbus_message_unref(reply);
836
837 m = reply = NULL;
838 }
839
840 r = 0;
841
842finish:
843 if (m)
844 dbus_message_unref(m);
845
846 if (reply)
847 dbus_message_unref(reply);
848
849 dbus_error_free(&error);
850
851 return r;
852}
853
854static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
855 DBusMessage *m = NULL, *reply = NULL;
856 DBusError error;
857 int r;
858 unsigned i;
859
860 dbus_error_init(&error);
861
514f4ef5
LP		 862 assert(bus);
863 assert(args);
864
ee5762e3
LP		 865 if (n <= 1)
866 return daemon_reload(bus, args, n);
867
7e4249b9
LP		 868 for (i = 1; i < n; i++) {
869 unsigned id;
870 const char *path;
871
872 if (!(m = dbus_message_new_method_call(
873 "org.freedesktop.systemd1",
874 "/org/freedesktop/systemd1",
875 "org.freedesktop.systemd1.Manager",
876 "GetJob"))) {
877 log_error("Could not allocate message.");
878 r = -ENOMEM;
879 goto finish;
880 }
881
882 if ((r = safe_atou(args[i], &id)) < 0) {
883 log_error("Failed to parse job id: %s", strerror(-r));
884 goto finish;
885 }
886
887 assert_cc(sizeof(uint32_t) == sizeof(id));
888 if (!dbus_message_append_args(m,
889 DBUS_TYPE_UINT32, &id,
890 DBUS_TYPE_INVALID)) {
891 log_error("Could not append arguments to message.");
892 r = -ENOMEM;
893 goto finish;
894 }
895
896 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 897 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 898 r = -EIO;
899 goto finish;
900 }
901
902 if (!dbus_message_get_args(reply, &error,
903 DBUS_TYPE_OBJECT_PATH, &path,
904 DBUS_TYPE_INVALID)) {
4cf5d675 905 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 906 r = -EIO;
907 goto finish;
908 }
909
910 dbus_message_unref(m);
911 if (!(m = dbus_message_new_method_call(
912 "org.freedesktop.systemd1",
913 path,
914 "org.freedesktop.systemd1.Job",
915 "Cancel"))) {
916 log_error("Could not allocate message.");
917 r = -ENOMEM;
918 goto finish;
919 }
920
921 dbus_message_unref(reply);
922 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 923 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 924 r = -EIO;
925 goto finish;
926 }
927
928 dbus_message_unref(m);
929 dbus_message_unref(reply);
930 m = reply = NULL;
931 }
932
933 r = 0;
934
935finish:
936 if (m)
937 dbus_message_unref(m);
938
939 if (reply)
940 dbus_message_unref(reply);
941
942 dbus_error_free(&error);
943
944 return r;
945}
946
ee5762e3 947static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
e364ad06 948 DBusMessage *m = NULL, *reply = NULL;
45fb0699
LP		 949 dbus_bool_t b = FALSE;
950 DBusMessageIter iter, sub;
951 const char
952 *interface = "org.freedesktop.systemd1.Unit",
953 *property = "NeedDaemonReload",
954 *path;
955
956 /* We ignore all errors here, since this is used to show a warning only */
957
958 if (!(m = dbus_message_new_method_call(
959 "org.freedesktop.systemd1",
960 "/org/freedesktop/systemd1",
961 "org.freedesktop.systemd1.Manager",
962 "GetUnit")))
963 goto finish;
964
965 if (!dbus_message_append_args(m,
966 DBUS_TYPE_STRING, &unit,
967 DBUS_TYPE_INVALID))
968 goto finish;
969
970 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
971 goto finish;
972
973 if (!dbus_message_get_args(reply, NULL,
974 DBUS_TYPE_OBJECT_PATH, &path,
975 DBUS_TYPE_INVALID))
976 goto finish;
977
978 dbus_message_unref(m);
979 if (!(m = dbus_message_new_method_call(
980 "org.freedesktop.systemd1",
981 path,
982 "org.freedesktop.DBus.Properties",
983 "Get")))
984 goto finish;
985
986 if (!dbus_message_append_args(m,
987 DBUS_TYPE_STRING, &interface,
988 DBUS_TYPE_STRING, &property,
989 DBUS_TYPE_INVALID)) {
990 goto finish;
991 }
992
993 dbus_message_unref(reply);
994 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
995 goto finish;
996
997 if (!dbus_message_iter_init(reply, &iter) ||
998 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
999 goto finish;
1000
1001 dbus_message_iter_recurse(&iter, &sub);
1002
1003 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1004 goto finish;
1005
1006 dbus_message_iter_get_basic(&sub, &b);
1007
1008finish:
1009 if (m)
1010 dbus_message_unref(m);
1011
1012 if (reply)
1013 dbus_message_unref(reply);
1014
1015 return b;
1016}
1017
5e374895
LP		 1018typedef struct WaitData {
1019 Set *set;
1020 bool failed;
1021} WaitData;
1022
7e4249b9
LP		 1023static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1024 DBusError error;
5e374895 1025 WaitData *d = data;
7e4249b9
LP		 1026
1027 assert(connection);
1028 assert(message);
5e374895 1029 assert(d);
7e4249b9
LP		 1030
1031 dbus_error_init(&error);
1032
54165a39
LP		 1033 log_debug("Got D-Bus request: %s.%s() on %s",
1034 dbus_message_get_interface(message),
1035 dbus_message_get_member(message),
1036 dbus_message_get_path(message));
7e4249b9
LP		 1037
1038 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1039 log_error("Warning! D-Bus connection terminated.");
1040 dbus_connection_close(connection);
1041
1042 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1043 uint32_t id;
1044 const char *path;
5e374895 1045 dbus_bool_t success = true;
7e4249b9
LP		 1046
1047 if (!dbus_message_get_args(message, &error,
1048 DBUS_TYPE_UINT32, &id,
1049 DBUS_TYPE_OBJECT_PATH, &path,
5e374895 1050 DBUS_TYPE_BOOLEAN, &success,
7e4249b9 1051 DBUS_TYPE_INVALID))
4cf5d675 1052 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 1053 else {
1054 char *p;
1055
5e374895 1056 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 1057 free(p);
5e374895
LP		 1058
1059 if (!success)
1060 d->failed = true;
7e4249b9
LP		 1061 }
1062 }
1063
1064 dbus_error_free(&error);
1065 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1066}
1067
479ef5d3 1068static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 1069 DBusError error;
7e4249b9
LP		 1070
1071 assert(bus);
7e4249b9 1072
f4579ce7
LP		 1073 if (private_bus)
1074 return 0;
1075
7e4249b9 1076 dbus_error_init(&error);
7e4249b9
LP		 1077 dbus_bus_add_match(bus,
1078 "type='signal',"
1079 "sender='org.freedesktop.systemd1',"
1080 "interface='org.freedesktop.systemd1.Manager',"
1081 "member='JobRemoved',"
1082 "path='/org/freedesktop/systemd1'",
1083 &error);
1084
1085 if (dbus_error_is_set(&error)) {
4cf5d675 1086 log_error("Failed to add match: %s", bus_error_message(&error));
a567261a
LP		 1087 dbus_error_free(&error);
1088 return -EIO;
7e4249b9
LP		 1089 }
1090
479ef5d3 1091 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 1092 return 0;
7e4249b9
LP		 1093}
1094
479ef5d3
LP		 1095static int wait_for_jobs(DBusConnection *bus, Set *s) {
1096 int r;
5e374895 1097 WaitData d;
479ef5d3
LP		 1098
1099 assert(bus);
1100 assert(s);
1101
5e374895
LP		 1102 zero(d);
1103 d.set = s;
1104 d.failed = false;
1105
1106 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 1107 log_error("Failed to add filter.");
1108 r = -ENOMEM;
1109 goto finish;
1110 }
1111
1112 while (!set_isempty(s) &&
1113 dbus_connection_read_write_dispatch(bus, -1))
1114 ;
1115
5e374895 1116 if (!arg_quiet && d.failed)
fe71c02c 1117 log_error("Job failed, see system logs for details.");
5e374895
LP		 1118
1119 r = d.failed ? -EIO : 0;
479ef5d3
LP		 1120
1121finish:
1122 /* This is slightly dirty, since we don't undo the filter registration. */
1123
1124 return r;
1125}
1126
e4b61340
LP		 1127static int start_unit_one(
1128 DBusConnection *bus,
1129 const char *method,
1130 const char *name,
1131 const char *mode,
22f4096c 1132 DBusError *error,
e4b61340 1133 Set *s) {
7e4249b9 1134
7e4249b9 1135 DBusMessage *m = NULL, *reply = NULL;
45fb0699 1136 const char *path;
7e4249b9 1137 int r;
7e4249b9 1138
e4b61340
LP		 1139 assert(bus);
1140 assert(method);
1141 assert(name);
1142 assert(mode);
22f4096c 1143 assert(error);
6e905d93 1144 assert(arg_no_block || s);
7e4249b9
LP		 1145
1146 if (!(m = dbus_message_new_method_call(
1147 "org.freedesktop.systemd1",
1148 "/org/freedesktop/systemd1",
1149 "org.freedesktop.systemd1.Manager",
e4b61340 1150 method))) {
7e4249b9
LP		 1151 log_error("Could not allocate message.");
1152 r = -ENOMEM;
1153 goto finish;
1154 }
1155
1156 if (!dbus_message_append_args(m,
e4b61340 1157 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 1158 DBUS_TYPE_STRING, &mode,
1159 DBUS_TYPE_INVALID)) {
1160 log_error("Could not append arguments to message.");
1161 r = -ENOMEM;
1162 goto finish;
1163 }
1164
22f4096c 1165 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
e4b61340 1166
22f4096c 1167 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
e4b61340
LP		 1168 /* There's always a fallback possible for
1169 * legacy actions. */
706900b7 1170 r = -EADDRNOTAVAIL;
e4b61340
LP		 1171 goto finish;
1172 }
1173
22f4096c 1174 log_error("Failed to issue method call: %s", bus_error_message(error));
7e4249b9
LP		 1175 r = -EIO;
1176 goto finish;
1177 }
1178
22f4096c 1179 if (!dbus_message_get_args(reply, error,
45fb0699
LP		 1180 DBUS_TYPE_OBJECT_PATH, &path,
1181 DBUS_TYPE_INVALID)) {
22f4096c 1182 log_error("Failed to parse reply: %s", bus_error_message(error));
45fb0699
LP		 1183 r = -EIO;
1184 goto finish;
1185 }
1186
ee5762e3 1187 if (need_daemon_reload(bus, name))
45fb0699
LP		 1188 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1189 arg_session ? "--session" : "--system");
1190
6e905d93 1191 if (!arg_no_block) {
e4b61340 1192 char *p;
7e4249b9 1193
7e4249b9
LP		 1194 if (!(p = strdup(path))) {
1195 log_error("Failed to duplicate path.");
1196 r = -ENOMEM;
1197 goto finish;
1198 }
1199
1200 if ((r = set_put(s, p)) < 0) {
e4b61340 1201 free(p);
7e4249b9
LP		 1202 log_error("Failed to add path to set.");
1203 goto finish;
1204 }
e4b61340 1205 }
7e4249b9 1206
706900b7 1207 r = 0;
22f4096c 1208
7e4249b9 1209finish:
7e4249b9
LP		 1210 if (m)
1211 dbus_message_unref(m);
1212
1213 if (reply)
1214 dbus_message_unref(reply);
1215
7e4249b9
LP		 1216 return r;
1217}
1218
514f4ef5
LP		 1219static enum action verb_to_action(const char *verb) {
1220 if (streq(verb, "halt"))
1221 return ACTION_HALT;
1222 else if (streq(verb, "poweroff"))
1223 return ACTION_POWEROFF;
1224 else if (streq(verb, "reboot"))
1225 return ACTION_REBOOT;
20b09ca7
LP		 1226 else if (streq(verb, "kexec"))
1227 return ACTION_KEXEC;
514f4ef5
LP		 1228 else if (streq(verb, "rescue"))
1229 return ACTION_RESCUE;
1230 else if (streq(verb, "emergency"))
1231 return ACTION_EMERGENCY;
1232 else if (streq(verb, "default"))
1233 return ACTION_DEFAULT;
20b09ca7
LP		 1234 else if (streq(verb, "exit"))
1235 return ACTION_EXIT;
514f4ef5
LP		 1236 else
1237 return ACTION_INVALID;
1238}
1239
e4b61340
LP		 1240static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1241
1242 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1243 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1244 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1245 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
20b09ca7 1246 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
514f4ef5
LP		 1247 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1248 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1249 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1250 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1251 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1252 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
20b09ca7
LP		 1253 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1254 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
e4b61340
LP		 1255 };
1256
22f4096c 1257 int r, ret = 0;
e4b61340 1258 unsigned i;
514f4ef5 1259 const char *method, *mode, *one_name;
e4b61340 1260 Set *s = NULL;
22f4096c
LP		 1261 DBusError error;
1262
1263 dbus_error_init(&error);
e4b61340 1264
514f4ef5
LP		 1265 assert(bus);
1266
e4b61340
LP		 1267 if (arg_action == ACTION_SYSTEMCTL) {
1268 method =
6f28c033
LP		 1269 streq(args[0], "stop") ? "StopUnit" :
1270 streq(args[0], "reload") ? "ReloadUnit" :
1271 streq(args[0], "restart") ? "RestartUnit" :
aa5939a3
MS		 1272 streq(args[0], "try-restart") ||
1273 streq(args[0], "condrestart") ? "TryRestartUnit" :
6f28c033 1274 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
9d8a57ff 1275 streq(args[0], "reload-or-try-restart") ||
aa5939a3 1276 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
6f28c033 1277 "StartUnit";
e4b61340
LP		 1278
1279 mode =
514f4ef5
LP		 1280 (streq(args[0], "isolate") ||
1281 streq(args[0], "rescue") ||
1282 streq(args[0], "emergency")) ? "isolate" :
90d473a1
LP		 1283 arg_fail ? "fail" :
1284 "replace";
e4b61340 1285
514f4ef5 1286 one_name = table[verb_to_action(args[0])];
e4b61340 1287
e4b61340
LP		 1288 } else {
1289 assert(arg_action < ELEMENTSOF(table));
1290 assert(table[arg_action]);
1291
1292 method = "StartUnit";
514f4ef5
LP		 1293
1294 mode = (arg_action == ACTION_EMERGENCY ||
6f0d624e
LP		 1295 arg_action == ACTION_RESCUE ||
1296 arg_action == ACTION_RUNLEVEL2 ||
1297 arg_action == ACTION_RUNLEVEL3 ||
1298 arg_action == ACTION_RUNLEVEL4 ||
1299 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
514f4ef5
LP		 1300
1301 one_name = table[arg_action];
1302 }
1303
6e905d93 1304 if (!arg_no_block) {
22f4096c
LP		 1305 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1306 log_error("Could not watch jobs: %s", strerror(-ret));
514f4ef5
LP		 1307 goto finish;
1308 }
1309
1310 if (!(s = set_new(string_hash_func, string_compare_func))) {
1311 log_error("Failed to allocate set.");
22f4096c 1312 ret = -ENOMEM;
514f4ef5
LP		 1313 goto finish;
1314 }
e4b61340
LP		 1315 }
1316
514f4ef5 1317 if (one_name) {
22f4096c 1318 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
514f4ef5
LP		 1319 goto finish;
1320 } else {
e4b61340 1321 for (i = 1; i < n; i++)
22f4096c 1322 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
706900b7 1323 ret = translate_bus_error_to_exit_status(r, &error);
22f4096c
LP		 1324 dbus_error_free(&error);
1325 }
e4b61340
LP		 1326 }
1327
6e905d93 1328 if (!arg_no_block)
22f4096c
LP		 1329 if ((r = wait_for_jobs(bus, s)) < 0) {
1330 ret = r;
fbc43921 1331 goto finish;
22f4096c 1332 }
514f4ef5 1333
e4b61340
LP		 1334finish:
1335 if (s)
1336 set_free_free(s);
1337
22f4096c
LP		 1338 dbus_error_free(&error);
1339
1340 return ret;
e4b61340
LP		 1341}
1342
514f4ef5 1343static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1344 int r;
1345
514f4ef5
LP		 1346 assert(bus);
1347 assert(args);
1348
20b09ca7
LP		 1349 if (arg_force &&
1350 (streq(args[0], "halt") ||
1351 streq(args[0], "poweroff") ||
1352 streq(args[0], "reboot") ||
1353 streq(args[0], "kexec") ||
1354 streq(args[0], "exit")))
1355 return daemon_reload(bus, args, n);
1356
983d9c90
LP		 1357 r = start_unit(bus, args, n);
1358
1359 if (r >= 0)
1360 warn_wall(verb_to_action(args[0]));
514f4ef5 1361
983d9c90 1362 return r;
514f4ef5
LP		 1363}
1364
0183528f
LP		 1365static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1366 DBusMessage *m = NULL, *reply = NULL;
1367 const char
1368 *interface = "org.freedesktop.systemd1.Unit",
1369 *property = "ActiveState";
22f4096c 1370 int r = 3; /* According to LSB: "program is not running" */
0183528f
LP		 1371 DBusError error;
1372 unsigned i;
1373
1374 assert(bus);
1375 assert(args);
1376
1377 dbus_error_init(&error);
1378
1379 for (i = 1; i < n; i++) {
1380 const char *path = NULL;
1381 const char *state;
1382 DBusMessageIter iter, sub;
1383
1384 if (!(m = dbus_message_new_method_call(
1385 "org.freedesktop.systemd1",
1386 "/org/freedesktop/systemd1",
1387 "org.freedesktop.systemd1.Manager",
1388 "GetUnit"))) {
1389 log_error("Could not allocate message.");
1390 r = -ENOMEM;
1391 goto finish;
1392 }
1393
1394 if (!dbus_message_append_args(m,
1395 DBUS_TYPE_STRING, &args[i],
1396 DBUS_TYPE_INVALID)) {
1397 log_error("Could not append arguments to message.");
1398 r = -ENOMEM;
1399 goto finish;
1400 }
1401
1402 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1403
1404 /* Hmm, cannot figure out anything about this unit... */
1405 if (!arg_quiet)
1406 puts("unknown");
1407
ed2d7a44 1408 dbus_error_free(&error);
0183528f
LP		 1409 continue;
1410 }
1411
1412 if (!dbus_message_get_args(reply, &error,
1413 DBUS_TYPE_OBJECT_PATH, &path,
1414 DBUS_TYPE_INVALID)) {
4cf5d675 1415 log_error("Failed to parse reply: %s", bus_error_message(&error));
0183528f
LP		 1416 r = -EIO;
1417 goto finish;
1418 }
1419
1420 dbus_message_unref(m);
1421 if (!(m = dbus_message_new_method_call(
1422 "org.freedesktop.systemd1",
1423 path,
1424 "org.freedesktop.DBus.Properties",
1425 "Get"))) {
1426 log_error("Could not allocate message.");
1427 r = -ENOMEM;
1428 goto finish;
1429 }
1430
1431 if (!dbus_message_append_args(m,
1432 DBUS_TYPE_STRING, &interface,
1433 DBUS_TYPE_STRING, &property,
1434 DBUS_TYPE_INVALID)) {
1435 log_error("Could not append arguments to message.");
1436 r = -ENOMEM;
1437 goto finish;
1438 }
1439
1440 dbus_message_unref(reply);
1441 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1442 log_error("Failed to issue method call: %s", bus_error_message(&error));
0183528f
LP		 1443 r = -EIO;
1444 goto finish;
1445 }
1446
1447 if (!dbus_message_iter_init(reply, &iter) ||
1448 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1449 log_error("Failed to parse reply.");
1450 r = -EIO;
1451 goto finish;
1452 }
1453
1454 dbus_message_iter_recurse(&iter, &sub);
1455
1456 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1457 log_error("Failed to parse reply.");
1458 r = -EIO;
1459 goto finish;
1460 }
1461
1462 dbus_message_iter_get_basic(&sub, &state);
1463
1464 if (!arg_quiet)
1465 puts(state);
1466
f1e36d67 1467 if (streq(state, "active") || streq(state, "reloading"))
0183528f
LP		 1468 r = 0;
1469
1470 dbus_message_unref(m);
1471 dbus_message_unref(reply);
1472 m = reply = NULL;
1473 }
1474
1475finish:
1476 if (m)
1477 dbus_message_unref(m);
1478
1479 if (reply)
1480 dbus_message_unref(reply);
1481
1482 dbus_error_free(&error);
1483
1484 return r;
48220598
LP		 1485}
1486
582a507f
LP		 1487typedef struct ExecStatusInfo {
1488 char *path;
1489 char **argv;
1490
b708e7ce
LP		 1491 bool ignore;
1492
582a507f
LP		 1493 usec_t start_timestamp;
1494 usec_t exit_timestamp;
1495 pid_t pid;
1496 int code;
1497 int status;
1498
1499 LIST_FIELDS(struct ExecStatusInfo, exec);
1500} ExecStatusInfo;
1501
1502static void exec_status_info_free(ExecStatusInfo *i) {
1503 assert(i);
1504
1505 free(i->path);
1506 strv_free(i->argv);
1507 free(i);
1508}
1509
1510static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1511 uint64_t start_timestamp, exit_timestamp;
1512 DBusMessageIter sub2, sub3;
1513 const char*path;
1514 unsigned n;
1515 uint32_t pid;
1516 int32_t code, status;
b708e7ce 1517 dbus_bool_t ignore;
582a507f
LP		 1518
1519 assert(i);
1520 assert(i);
1521
1522 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1523 return -EIO;
1524
1525 dbus_message_iter_recurse(sub, &sub2);
1526
1527 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1528 return -EIO;
1529
1530 if (!(i->path = strdup(path)))
1531 return -ENOMEM;
1532
1533 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1534 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1535 return -EIO;
1536
1537 n = 0;
1538 dbus_message_iter_recurse(&sub2, &sub3);
1539 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1540 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1541 dbus_message_iter_next(&sub3);
1542 n++;
1543 }
1544
1545
1546 if (!(i->argv = new0(char*, n+1)))
1547 return -ENOMEM;
1548
1549 n = 0;
1550 dbus_message_iter_recurse(&sub2, &sub3);
1551 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1552 const char *s;
1553
1554 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1555 dbus_message_iter_get_basic(&sub3, &s);
1556 dbus_message_iter_next(&sub3);
1557
1558 if (!(i->argv[n++] = strdup(s)))
1559 return -ENOMEM;
1560 }
1561
1562 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1563 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1564 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1565 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1566 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1567 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1568 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1569 return -EIO;
1570
b708e7ce 1571 i->ignore = ignore;
582a507f
LP		 1572 i->start_timestamp = (usec_t) start_timestamp;
1573 i->exit_timestamp = (usec_t) exit_timestamp;
1574 i->pid = (pid_t) pid;
1575 i->code = code;
1576 i->status = status;
1577
1578 return 0;
1579}
1580
61cbdc4b
LP		 1581typedef struct UnitStatusInfo {
1582 const char *id;
1583 const char *load_state;
1584 const char *active_state;
1585 const char *sub_state;
1586
1587 const char *description;
4a9e2fff 1588 const char *following;
61cbdc4b 1589
c31b4423 1590 const char *path;
61cbdc4b
LP		 1591 const char *default_control_group;
1592
584be568
LP		 1593 usec_t inactive_exit_timestamp;
1594 usec_t active_enter_timestamp;
1595 usec_t active_exit_timestamp;
1596 usec_t inactive_enter_timestamp;
1597
45fb0699
LP		 1598 bool need_daemon_reload;
1599
61cbdc4b
LP		 1600 /* Service */
1601 pid_t main_pid;
1602 pid_t control_pid;
1603 const char *status_text;
d06dacd0 1604 bool running:1;
07459bb6 1605#ifdef HAVE_SYSV_COMPAT
d06dacd0 1606 bool is_sysv:1;
07459bb6 1607#endif
61cbdc4b
LP		 1608
1609 usec_t start_timestamp;
1610 usec_t exit_timestamp;
1611
1612 int exit_code, exit_status;
1613
1614 /* Socket */
1615 unsigned n_accepted;
1616 unsigned n_connections;
b8131a87 1617 bool accept;
61cbdc4b
LP		 1618
1619 /* Device */
1620 const char *sysfs_path;
1621
1622 /* Mount, Automount */
1623 const char *where;
1624
1625 /* Swap */
1626 const char *what;
582a507f
LP		 1627
1628 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1629} UnitStatusInfo;
1630
1631static void print_status_info(UnitStatusInfo *i) {
582a507f 1632 ExecStatusInfo *p;
2ee68f72 1633 const char *on, *off, *ss;
584be568
LP		 1634 usec_t timestamp;
1635 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1636 char since2[FORMAT_TIMESTAMP_MAX], *s2;
582a507f 1637
61cbdc4b
LP		 1638 assert(i);
1639
1640 /* This shows pretty information about a unit. See
1641 * print_property() for a low-level property printer */
1642
1643 printf("%s", strna(i->id));
1644
1645 if (i->description && !streq_ptr(i->id, i->description))
1646 printf(" - %s", i->description);
1647
1648 printf("\n");
1649
4a9e2fff
LP		 1650 if (i->following)
1651 printf("\t Follow: unit currently follows state of %s\n", i->following);
1652
00dc5d76
LP		 1653 if (streq_ptr(i->load_state, "failed") ||
1654 streq_ptr(i->load_state, "banned")) {
c31b4423
LP		 1655 on = ansi_highlight(true);
1656 off = ansi_highlight(false);
1657 } else
1658 on = off = "";
1659
1660 if (i->path)
1661 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1662 else
c31b4423 1663 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1664
2ee68f72
LP		 1665 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1666
fdf20a31 1667 if (streq_ptr(i->active_state, "failed")) {
2ee68f72
LP		 1668 on = ansi_highlight(true);
1669 off = ansi_highlight(false);
1670 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1671 on = ansi_highlight_green(true);
1672 off = ansi_highlight_green(false);
1673 } else
1674 on = off = "";
1675
1676 if (ss)
584be568 1677 printf("\t Active: %s%s (%s)%s",
2ee68f72
LP		 1678 on,
1679 strna(i->active_state),
1680 ss,
1681 off);
1682 else
584be568 1683 printf("\t Active: %s%s%s",
2ee68f72
LP		 1684 on,
1685 strna(i->active_state),
1686 off);
61cbdc4b 1687
584be568
LP		 1688 timestamp = (streq_ptr(i->active_state, "active") ||
1689 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1690 (streq_ptr(i->active_state, "inactive") ||
fdf20a31 1691 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
584be568
LP		 1692 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1693 i->active_exit_timestamp;
1694
1695 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1696 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1697
1698 if (s1)
538da63d 1699 printf(" since %s; %s\n", s2, s1);
584be568 1700 else if (s2)
538da63d 1701 printf(" since %s\n", s2);
584be568
LP		 1702 else
1703 printf("\n");
1704
61cbdc4b
LP		 1705 if (i->sysfs_path)
1706 printf("\t Device: %s\n", i->sysfs_path);
1707 else if (i->where)
1708 printf("\t Where: %s\n", i->where);
1709 else if (i->what)
1710 printf("\t What: %s\n", i->what);
1711
b8131a87 1712 if (i->accept)
61cbdc4b
LP		 1713 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1714
582a507f
LP		 1715 LIST_FOREACH(exec, p, i->exec) {
1716 char *t;
1717
1718 /* Only show exited processes here */
1719 if (p->code == 0)
1720 continue;
1721
1722 t = strv_join(p->argv, " ");
f3d41013 1723 printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
582a507f
LP		 1724 free(t);
1725
d06dacd0
LP		 1726 if (p->code == CLD_EXITED) {
1727 const char *c;
1728
582a507f 1729 printf("status=%i", p->status);
d06dacd0 1730
07459bb6 1731#ifdef HAVE_SYSV_COMPAT
d06dacd0 1732 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1733#else
1734 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1735#endif
d06dacd0
LP		 1736 printf("/%s", c);
1737
1738 } else
582a507f
LP		 1739 printf("signal=%s", signal_to_string(p->status));
1740 printf(")\n");
1741
1742 if (i->main_pid == p->pid &&
1743 i->start_timestamp == p->start_timestamp &&
1744 i->exit_timestamp == p->start_timestamp)
1745 /* Let's not show this twice */
1746 i->main_pid = 0;
1747
1748 if (p->pid == i->control_pid)
1749 i->control_pid = 0;
1750 }
1751
61cbdc4b
LP		 1752 if (i->main_pid > 0 || i->control_pid > 0) {
1753 printf("\t");
1754
1755 if (i->main_pid > 0) {
f3d41013 1756 printf("Main PID: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1757
1758 if (i->running) {
1759 char *t = NULL;
1760 get_process_name(i->main_pid, &t);
1761 if (t) {
1762 printf(" (%s)", t);
1763 free(t);
1764 }
6d4fc029 1765 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1766 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1767
d06dacd0
LP		 1768 if (i->exit_code == CLD_EXITED) {
1769 const char *c;
1770
61cbdc4b 1771 printf("status=%i", i->exit_status);
d06dacd0 1772
07459bb6 1773#ifdef HAVE_SYSV_COMPAT
d06dacd0 1774 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1775#else
1776 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
1777#endif
d06dacd0
LP		 1778 printf("/%s", c);
1779
1780 } else
582a507f 1781 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1782 printf(")");
1783 }
61cbdc4b
LP		 1784 }
1785
1786 if (i->main_pid > 0 && i->control_pid > 0)
1787 printf(";");
1788
1789 if (i->control_pid > 0) {
1790 char *t = NULL;
1791
1792 printf(" Control: %u", (unsigned) i->control_pid);
1793
1794 get_process_name(i->control_pid, &t);
1795 if (t) {
1796 printf(" (%s)", t);
1797 free(t);
1798 }
1799 }
1800
1801 printf("\n");
1802 }
1803
17bb7382
LP		 1804 if (i->status_text)
1805 printf("\t Status: \"%s\"\n", i->status_text);
1806
c59760ee 1807 if (i->default_control_group) {
ab35fb1b
LP		 1808 unsigned c;
1809
61cbdc4b 1810 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1811
1812 if ((c = columns()) > 18)
1813 c -= 18;
1814 else
1815 c = 0;
1816
35d2e7ec 1817 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1818 }
45fb0699
LP		 1819
1820 if (i->need_daemon_reload)
2cc59dbf
LP		 1821 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1822 ansi_highlight(true),
1823 ansi_highlight(false),
45fb0699 1824 arg_session ? "--session" : "--system");
61cbdc4b
LP		 1825}
1826
1827static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1828
1829 switch (dbus_message_iter_get_arg_type(iter)) {
1830
1831 case DBUS_TYPE_STRING: {
1832 const char *s;
1833
1834 dbus_message_iter_get_basic(iter, &s);
1835
1836 if (s[0]) {
1837 if (streq(name, "Id"))
1838 i->id = s;
1839 else if (streq(name, "LoadState"))
1840 i->load_state = s;
1841 else if (streq(name, "ActiveState"))
1842 i->active_state = s;
1843 else if (streq(name, "SubState"))
1844 i->sub_state = s;
1845 else if (streq(name, "Description"))
1846 i->description = s;
1847 else if (streq(name, "FragmentPath"))
c31b4423 1848 i->path = s;
07459bb6 1849#ifdef HAVE_SYSV_COMPAT
d06dacd0
LP		 1850 else if (streq(name, "SysVPath")) {
1851 i->is_sysv = true;
c31b4423 1852 i->path = s;
07459bb6
FF		 1853 }
1854#endif
1855 else if (streq(name, "DefaultControlGroup"))
61cbdc4b
LP		 1856 i->default_control_group = s;
1857 else if (streq(name, "StatusText"))
1858 i->status_text = s;
1859 else if (streq(name, "SysFSPath"))
1860 i->sysfs_path = s;
1861 else if (streq(name, "Where"))
1862 i->where = s;
1863 else if (streq(name, "What"))
1864 i->what = s;
4a9e2fff
LP		 1865 else if (streq(name, "Following"))
1866 i->following = s;
61cbdc4b
LP		 1867 }
1868
1869 break;
1870 }
1871
b8131a87
LP		 1872 case DBUS_TYPE_BOOLEAN: {
1873 dbus_bool_t b;
1874
1875 dbus_message_iter_get_basic(iter, &b);
1876
1877 if (streq(name, "Accept"))
1878 i->accept = b;
45fb0699
LP		 1879 else if (streq(name, "NeedDaemonReload"))
1880 i->need_daemon_reload = b;
b8131a87
LP		 1881
1882 break;
1883 }
1884
61cbdc4b
LP		 1885 case DBUS_TYPE_UINT32: {
1886 uint32_t u;
1887
1888 dbus_message_iter_get_basic(iter, &u);
1889
1890 if (streq(name, "MainPID")) {
1891 if (u > 0) {
1892 i->main_pid = (pid_t) u;
1893 i->running = true;
1894 }
1895 } else if (streq(name, "ControlPID"))
1896 i->control_pid = (pid_t) u;
1897 else if (streq(name, "ExecMainPID")) {
1898 if (u > 0)
1899 i->main_pid = (pid_t) u;
1900 } else if (streq(name, "NAccepted"))
1901 i->n_accepted = u;
1902 else if (streq(name, "NConnections"))
1903 i->n_connections = u;
1904
1905 break;
1906 }
1907
1908 case DBUS_TYPE_INT32: {
1909 int32_t j;
1910
1911 dbus_message_iter_get_basic(iter, &j);
1912
1913 if (streq(name, "ExecMainCode"))
1914 i->exit_code = (int) j;
1915 else if (streq(name, "ExecMainStatus"))
1916 i->exit_status = (int) j;
1917
1918 break;
1919 }
1920
1921 case DBUS_TYPE_UINT64: {
1922 uint64_t u;
1923
1924 dbus_message_iter_get_basic(iter, &u);
1925
1926 if (streq(name, "ExecMainStartTimestamp"))
1927 i->start_timestamp = (usec_t) u;
1928 else if (streq(name, "ExecMainExitTimestamp"))
1929 i->exit_timestamp = (usec_t) u;
584be568
LP		 1930 else if (streq(name, "ActiveEnterTimestamp"))
1931 i->active_enter_timestamp = (usec_t) u;
1932 else if (streq(name, "InactiveEnterTimestamp"))
1933 i->inactive_enter_timestamp = (usec_t) u;
1934 else if (streq(name, "InactiveExitTimestamp"))
1935 i->inactive_exit_timestamp = (usec_t) u;
1936 else if (streq(name, "ActiveExitTimestamp"))
1937 i->active_exit_timestamp = (usec_t) u;
61cbdc4b
LP		 1938
1939 break;
1940 }
582a507f
LP		 1941
1942 case DBUS_TYPE_ARRAY: {
1943
1944 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1945 startswith(name, "Exec")) {
1946 DBusMessageIter sub;
1947
1948 dbus_message_iter_recurse(iter, &sub);
1949 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1950 ExecStatusInfo *info;
1951 int r;
1952
1953 if (!(info = new0(ExecStatusInfo, 1)))
1954 return -ENOMEM;
1955
1956 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1957 free(info);
1958 return r;
1959 }
1960
1961 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1962
1963 dbus_message_iter_next(&sub);
1964 }
1965 }
1966
1967 break;
1968 }
61cbdc4b
LP		 1969 }
1970
1971 return 0;
1972}
1973
48220598
LP		 1974static int print_property(const char *name, DBusMessageIter *iter) {
1975 assert(name);
1976 assert(iter);
1977
61cbdc4b
LP		 1978 /* This is a low-level property printer, see
1979 * print_status_info() for the nicer output */
1980
ea4a240d 1981 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 1982 return 0;
1983
1984 switch (dbus_message_iter_get_arg_type(iter)) {
1985
1986 case DBUS_TYPE_STRING: {
1987 const char *s;
1988 dbus_message_iter_get_basic(iter, &s);
1989
1990 if (arg_all || s[0])
1991 printf("%s=%s\n", name, s);
1992
1993 return 0;
1994 }
1995
1996 case DBUS_TYPE_BOOLEAN: {
1997 dbus_bool_t b;
1998 dbus_message_iter_get_basic(iter, &b);
1999 printf("%s=%s\n", name, yes_no(b));
2000
2001 return 0;
2002 }
2003
2004 case DBUS_TYPE_UINT64: {
2005 uint64_t u;
2006 dbus_message_iter_get_basic(iter, &u);
2007
2008 /* Yes, heuristics! But we can change this check
2009 * should it turn out to not be sufficient */
2010
14ad1d14 2011 if (strstr(name, "Timestamp")) {
48220598
LP		 2012 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
2013
2014 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
2015 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 2016 } else if (strstr(name, "USec")) {
2017 char timespan[FORMAT_TIMESPAN_MAX];
2018
2019 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 2020 } else
2021 printf("%s=%llu\n", name, (unsigned long long) u);
2022
2023 return 0;
2024 }
2025
2026 case DBUS_TYPE_UINT32: {
2027 uint32_t u;
2028 dbus_message_iter_get_basic(iter, &u);
2029
5bd07073 2030 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 2031 printf("%s=%04o\n", name, u);
2032 else
2033 printf("%s=%u\n", name, (unsigned) u);
2034
2035 return 0;
2036 }
2037
2038 case DBUS_TYPE_INT32: {
2039 int32_t i;
2040 dbus_message_iter_get_basic(iter, &i);
2041
2042 printf("%s=%i\n", name, (int) i);
2043 return 0;
2044 }
2045
05d6a3b6
LP		 2046 case DBUS_TYPE_DOUBLE: {
2047 double d;
2048 dbus_message_iter_get_basic(iter, &d);
2049
2050 printf("%s=%g\n", name, d);
2051 return 0;
2052 }
2053
48220598
LP		 2054 case DBUS_TYPE_STRUCT: {
2055 DBusMessageIter sub;
2056 dbus_message_iter_recurse(iter, &sub);
2057
ebf57b80 2058 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 2059 uint32_t u;
2060
2061 dbus_message_iter_get_basic(&sub, &u);
2062
2063 if (u)
2064 printf("%s=%u\n", name, (unsigned) u);
2065 else if (arg_all)
2066 printf("%s=\n", name);
2067
2068 return 0;
ebf57b80 2069 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 2070 const char *s;
2071
2072 dbus_message_iter_get_basic(&sub, &s);
2073
2074 if (arg_all || s[0])
2075 printf("%s=%s\n", name, s);
2076
2077 return 0;
2078 }
2079
2080 break;
2081 }
2082
2083 case DBUS_TYPE_ARRAY:
2084
2085 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2086 DBusMessageIter sub;
2087 bool space = false;
2088
2089 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 2090 if (arg_all ||
2091 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2092 printf("%s=", name);
2093
2094 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2095 const char *s;
2096
2097 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2098 dbus_message_iter_get_basic(&sub, &s);
2099 printf("%s%s", space ? " " : "", s);
2100
2101 space = true;
2102 dbus_message_iter_next(&sub);
2103 }
2104
2105 puts("");
2106 }
2107
ebf57b80 2108 return 0;
582a507f 2109
82c121a4
LP		 2110 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2111 DBusMessageIter sub;
2112
2113 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 2114 if (arg_all ||
2115 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2116 printf("%s=", name);
2117
2118 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2119 uint8_t u;
ebf57b80 2120
82c121a4
LP		 2121 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2122 dbus_message_iter_get_basic(&sub, &u);
2123 printf("%02x", u);
2124
2125 dbus_message_iter_next(&sub);
2126 }
2127
2128 puts("");
2129 }
2130
2131 return 0;
582a507f 2132
ebf57b80
LP		 2133 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2134 DBusMessageIter sub, sub2;
2135
2136 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 2137 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2138 const char *type, *path;
2139
2140 dbus_message_iter_recurse(&sub, &sub2);
2141
2142 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2143 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2144 printf("%s=%s\n", type, path);
2145
2146 dbus_message_iter_next(&sub);
2147 }
2148
707e5e52 2149 return 0;
582a507f 2150
707e5e52
LP		 2151 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2152 DBusMessageIter sub, sub2;
2153
2154 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 2155 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2156 const char *base;
2157 uint64_t value, next_elapse;
2158
2159 dbus_message_iter_recurse(&sub, &sub2);
2160
2161 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2162 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 2163 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2164 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2165
2166 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 2167 base,
552e4331
LP		 2168 format_timespan(timespan1, sizeof(timespan1), value),
2169 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2170 }
fe68089d
LP		 2171
2172 dbus_message_iter_next(&sub);
2173 }
2174
2175 return 0;
fe68089d 2176
582a507f
LP		 2177 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2178 DBusMessageIter sub;
fe68089d
LP		 2179
2180 dbus_message_iter_recurse(iter, &sub);
fe68089d 2181 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 2182 ExecStatusInfo info;
fe68089d 2183
582a507f
LP		 2184 zero(info);
2185 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 2186 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 2187 char *t;
2188
2189 t = strv_join(info.argv, " ");
2190
b708e7ce 2191 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		 2192 name,
2193 strna(info.path),
2194 strna(t),
b708e7ce 2195 yes_no(info.ignore),
582a507f
LP		 2196 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2197 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2198 (unsigned) info. pid,
2199 sigchld_code_to_string(info.code),
2200 info.status,
2201 info.code == CLD_EXITED ? "" : "/",
2202 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 2203
582a507f 2204 free(t);
fe68089d
LP		 2205 }
2206
582a507f
LP		 2207 free(info.path);
2208 strv_free(info.argv);
707e5e52
LP		 2209
2210 dbus_message_iter_next(&sub);
2211 }
2212
48220598
LP		 2213 return 0;
2214 }
2215
2216 break;
2217 }
2218
2219 if (arg_all)
2220 printf("%s=[unprintable]\n", name);
2221
2222 return 0;
2223}
2224
61cbdc4b 2225static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 2226 DBusMessage *m = NULL, *reply = NULL;
2227 const char *interface = "";
2228 int r;
2229 DBusError error;
2230 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 2231 UnitStatusInfo info;
582a507f 2232 ExecStatusInfo *p;
48220598
LP		 2233
2234 assert(bus);
2235 assert(path);
61cbdc4b 2236 assert(new_line);
48220598 2237
61cbdc4b 2238 zero(info);
48220598
LP		 2239 dbus_error_init(&error);
2240
2241 if (!(m = dbus_message_new_method_call(
2242 "org.freedesktop.systemd1",
2243 path,
2244 "org.freedesktop.DBus.Properties",
2245 "GetAll"))) {
2246 log_error("Could not allocate message.");
2247 r = -ENOMEM;
2248 goto finish;
2249 }
2250
2251 if (!dbus_message_append_args(m,
2252 DBUS_TYPE_STRING, &interface,
2253 DBUS_TYPE_INVALID)) {
2254 log_error("Could not append arguments to message.");
2255 r = -ENOMEM;
2256 goto finish;
2257 }
2258
2259 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2260 log_error("Failed to issue method call: %s", bus_error_message(&error));
48220598
LP		 2261 r = -EIO;
2262 goto finish;
2263 }
2264
2265 if (!dbus_message_iter_init(reply, &iter) ||
2266 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2267 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2268 log_error("Failed to parse reply.");
2269 r = -EIO;
2270 goto finish;
2271 }
2272
2273 dbus_message_iter_recurse(&iter, &sub);
2274
61cbdc4b
LP		 2275 if (*new_line)
2276 printf("\n");
2277
2278 *new_line = true;
2279
48220598
LP		 2280 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2281 const char *name;
2282
2283 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2284 log_error("Failed to parse reply.");
2285 r = -EIO;
2286 goto finish;
2287 }
2288
2289 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2290
48220598
LP		 2291 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2292 log_error("Failed to parse reply.");
2293 r = -EIO;
2294 goto finish;
2295 }
2296
2297 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2298 log_error("Failed to parse reply.");
2299 r = -EIO;
2300 goto finish;
2301 }
2302
2303 dbus_message_iter_recurse(&sub2, &sub3);
2304
61cbdc4b
LP		 2305 if (show_properties)
2306 r = print_property(name, &sub3);
2307 else
2308 r = status_property(name, &sub3, &info);
2309
2310 if (r < 0) {
48220598
LP		 2311 log_error("Failed to parse reply.");
2312 r = -EIO;
2313 goto finish;
2314 }
2315
2316 dbus_message_iter_next(&sub);
2317 }
2318
f1e36d67
LP		 2319 r = 0;
2320
22f4096c
LP		 2321 if (!show_properties)
2322 print_status_info(&info);
f1e36d67 2323
22f4096c
LP		 2324 if (!streq_ptr(info.active_state, "active") &&
2325 !streq_ptr(info.active_state, "reloading"))
2326 /* According to LSB: "program not running" */
2327 r = 3;
61cbdc4b 2328
582a507f
LP		 2329 while ((p = info.exec)) {
2330 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2331 exec_status_info_free(p);
2332 }
2333
48220598
LP		 2334finish:
2335 if (m)
2336 dbus_message_unref(m);
2337
2338 if (reply)
2339 dbus_message_unref(reply);
2340
2341 dbus_error_free(&error);
2342
2343 return r;
2344}
2345
2346static int show(DBusConnection *bus, char **args, unsigned n) {
2347 DBusMessage *m = NULL, *reply = NULL;
22f4096c 2348 int r, ret = 0;
48220598
LP		 2349 DBusError error;
2350 unsigned i;
61cbdc4b 2351 bool show_properties, new_line = false;
48220598
LP		 2352
2353 assert(bus);
2354 assert(args);
2355
2356 dbus_error_init(&error);
2357
61cbdc4b
LP		 2358 show_properties = !streq(args[0], "status");
2359
2360 if (show_properties && n <= 1) {
48220598
LP		 2361 /* If not argument is specified inspect the manager
2362 * itself */
2363
22f4096c 2364 ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2365 goto finish;
2366 }
2367
2368 for (i = 1; i < n; i++) {
2369 const char *path = NULL;
2370 uint32_t id;
2371
598b557b
LP		 2372 if (safe_atou32(args[i], &id) < 0) {
2373
2374 /* Interpret as unit name */
48220598
LP		 2375
2376 if (!(m = dbus_message_new_method_call(
2377 "org.freedesktop.systemd1",
2378 "/org/freedesktop/systemd1",
2379 "org.freedesktop.systemd1.Manager",
e87d1818 2380 "LoadUnit"))) {
48220598 2381 log_error("Could not allocate message.");
22f4096c 2382 ret = -ENOMEM;
48220598
LP		 2383 goto finish;
2384 }
2385
2386 if (!dbus_message_append_args(m,
2387 DBUS_TYPE_STRING, &args[i],
2388 DBUS_TYPE_INVALID)) {
2389 log_error("Could not append arguments to message.");
22f4096c 2390 ret = -ENOMEM;
48220598
LP		 2391 goto finish;
2392 }
2393
ed2d7a44
LP		 2394 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2395
2396 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
4cf5d675 2397 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2398 ret = -EIO;
ed2d7a44
LP		 2399 goto finish;
2400 }
2401
2402 dbus_error_free(&error);
2403
2404 dbus_message_unref(m);
2405 if (!(m = dbus_message_new_method_call(
2406 "org.freedesktop.systemd1",
2407 "/org/freedesktop/systemd1",
2408 "org.freedesktop.systemd1.Manager",
2409 "GetUnit"))) {
2410 log_error("Could not allocate message.");
22f4096c 2411 ret = -ENOMEM;
ed2d7a44
LP		 2412 goto finish;
2413 }
2414
2415 if (!dbus_message_append_args(m,
2416 DBUS_TYPE_STRING, &args[i],
2417 DBUS_TYPE_INVALID)) {
2418 log_error("Could not append arguments to message.");
22f4096c 2419 ret = -ENOMEM;
ed2d7a44
LP		 2420 goto finish;
2421 }
2422
2423 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2424 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c
LP		 2425
2426 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2427 ret = 4; /* According to LSB: "program or service status is unknown" */
2428 else
2429 ret = -EIO;
ed2d7a44
LP		 2430 goto finish;
2431 }
2432 }
2433
598b557b
LP		 2434 } else if (show_properties) {
2435
2436 /* Interpret as job id */
48220598
LP		 2437
2438 if (!(m = dbus_message_new_method_call(
2439 "org.freedesktop.systemd1",
2440 "/org/freedesktop/systemd1",
2441 "org.freedesktop.systemd1.Manager",
2442 "GetJob"))) {
2443 log_error("Could not allocate message.");
22f4096c 2444 ret = -ENOMEM;
48220598
LP		 2445 goto finish;
2446 }
2447
2448 if (!dbus_message_append_args(m,
2449 DBUS_TYPE_UINT32, &id,
2450 DBUS_TYPE_INVALID)) {
2451 log_error("Could not append arguments to message.");
22f4096c 2452 ret = -ENOMEM;
48220598
LP		 2453 goto finish;
2454 }
48220598 2455
598b557b 2456 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2457 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2458 ret = -EIO;
598b557b
LP		 2459 goto finish;
2460 }
2461 } else {
2462
2463 /* Interpret as PID */
2464
2465 if (!(m = dbus_message_new_method_call(
2466 "org.freedesktop.systemd1",
2467 "/org/freedesktop/systemd1",
2468 "org.freedesktop.systemd1.Manager",
2469 "GetUnitByPID"))) {
2470 log_error("Could not allocate message.");
22f4096c 2471 ret = -ENOMEM;
598b557b
LP		 2472 goto finish;
2473 }
2474
2475 if (!dbus_message_append_args(m,
2476 DBUS_TYPE_UINT32, &id,
2477 DBUS_TYPE_INVALID)) {
2478 log_error("Could not append arguments to message.");
22f4096c 2479 ret = -ENOMEM;
598b557b
LP		 2480 goto finish;
2481 }
2482
ed2d7a44 2483 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2484 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2485 ret = -EIO;
ed2d7a44
LP		 2486 goto finish;
2487 }
48220598
LP		 2488 }
2489
2490 if (!dbus_message_get_args(reply, &error,
2491 DBUS_TYPE_OBJECT_PATH, &path,
2492 DBUS_TYPE_INVALID)) {
4cf5d675 2493 log_error("Failed to parse reply: %s", bus_error_message(&error));
22f4096c 2494 ret = -EIO;
48220598
LP		 2495 goto finish;
2496 }
2497
22f4096c
LP		 2498 if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
2499 ret = r;
48220598
LP		 2500
2501 dbus_message_unref(m);
2502 dbus_message_unref(reply);
2503 m = reply = NULL;
2504 }
2505
48220598
LP		 2506finish:
2507 if (m)
2508 dbus_message_unref(m);
2509
2510 if (reply)
2511 dbus_message_unref(reply);
2512
2513 dbus_error_free(&error);
2514
22f4096c 2515 return ret;
0183528f
LP		 2516}
2517
7e4249b9
LP		 2518static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2519 DBusError error;
2520 DBusMessage *m = NULL, *reply = NULL;
2521
2522 assert(connection);
2523 assert(message);
2524
2525 dbus_error_init(&error);
2526
54165a39
LP		 2527 log_debug("Got D-Bus request: %s.%s() on %s",
2528 dbus_message_get_interface(message),
2529 dbus_message_get_member(message),
2530 dbus_message_get_path(message));
7e4249b9
LP		 2531
2532 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2533 log_error("Warning! D-Bus connection terminated.");
2534 dbus_connection_close(connection);
2535
2536 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2537 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2538 const char *id, *path;
2539
2540 if (!dbus_message_get_args(message, &error,
2541 DBUS_TYPE_STRING, &id,
2542 DBUS_TYPE_OBJECT_PATH, &path,
2543 DBUS_TYPE_INVALID))
4cf5d675 2544 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2545 else if (streq(dbus_message_get_member(message), "UnitNew"))
2546 printf("Unit %s added.\n", id);
2547 else
2548 printf("Unit %s removed.\n", id);
2549
2550 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2551 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2552 uint32_t id;
2553 const char *path;
2554
2555 if (!dbus_message_get_args(message, &error,
2556 DBUS_TYPE_UINT32, &id,
2557 DBUS_TYPE_OBJECT_PATH, &path,
2558 DBUS_TYPE_INVALID))
4cf5d675 2559 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2560 else if (streq(dbus_message_get_member(message), "JobNew"))
2561 printf("Job %u added.\n", id);
2562 else
2563 printf("Job %u removed.\n", id);
2564
2565
c4e2ceae 2566 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
7e4249b9
LP		 2567
2568 const char *path, *interface, *property = "Id";
2569 DBusMessageIter iter, sub;
2570
2571 path = dbus_message_get_path(message);
c4e2ceae
LP		 2572
2573 if (!dbus_message_get_args(message, &error,
2574 DBUS_TYPE_STRING, &interface,
2575 DBUS_TYPE_INVALID)) {
4cf5d675 2576 log_error("Failed to parse message: %s", bus_error_message(&error));
c4e2ceae
LP		 2577 goto finish;
2578 }
2579
2580 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2581 !streq(interface, "org.freedesktop.systemd1.Unit"))
2582 goto finish;
7e4249b9
LP		 2583
2584 if (!(m = dbus_message_new_method_call(
2585 "org.freedesktop.systemd1",
2586 path,
2587 "org.freedesktop.DBus.Properties",
2588 "Get"))) {
2589 log_error("Could not allocate message.");
2590 goto oom;
2591 }
2592
2593 if (!dbus_message_append_args(m,
2594 DBUS_TYPE_STRING, &interface,
2595 DBUS_TYPE_STRING, &property,
2596 DBUS_TYPE_INVALID)) {
2597 log_error("Could not append arguments to message.");
2598 goto finish;
2599 }
2600
2601 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
4cf5d675 2602 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2603 goto finish;
2604 }
2605
2606 if (!dbus_message_iter_init(reply, &iter) ||
2607 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2608 log_error("Failed to parse reply.");
2609 goto finish;
2610 }
2611
2612 dbus_message_iter_recurse(&iter, &sub);
2613
2614 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2615 const char *id;
2616
2617 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2618 log_error("Failed to parse reply.");
2619 goto finish;
2620 }
2621
2622 dbus_message_iter_get_basic(&sub, &id);
2623 printf("Unit %s changed.\n", id);
2624 } else {
2625 uint32_t id;
2626
2627 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2628 log_error("Failed to parse reply.");
2629 goto finish;
2630 }
2631
2632 dbus_message_iter_get_basic(&sub, &id);
2633 printf("Job %u changed.\n", id);
2634 }
2635 }
2636
2637finish:
2638 if (m)
2639 dbus_message_unref(m);
2640
2641 if (reply)
2642 dbus_message_unref(reply);
2643
2644 dbus_error_free(&error);
2645 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2646
2647oom:
2648 if (m)
2649 dbus_message_unref(m);
2650
2651 if (reply)
2652 dbus_message_unref(reply);
2653
2654 dbus_error_free(&error);
2655 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2656}
2657
2658static int monitor(DBusConnection *bus, char **args, unsigned n) {
2659 DBusMessage *m = NULL, *reply = NULL;
2660 DBusError error;
2661 int r;
2662
2663 dbus_error_init(&error);
2664
f4579ce7
LP		 2665 if (!private_bus) {
2666 dbus_bus_add_match(bus,
2667 "type='signal',"
2668 "sender='org.freedesktop.systemd1',"
2669 "interface='org.freedesktop.systemd1.Manager',"
2670 "path='/org/freedesktop/systemd1'",
2671 &error);
7e4249b9 2672
f4579ce7 2673 if (dbus_error_is_set(&error)) {
4cf5d675 2674 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2675 r = -EIO;
2676 goto finish;
2677 }
7e4249b9 2678
f4579ce7
LP		 2679 dbus_bus_add_match(bus,
2680 "type='signal',"
2681 "sender='org.freedesktop.systemd1',"
c4e2ceae
LP		 2682 "interface='org.freedesktop.DBus.Properties',"
2683 "member='PropertiesChanged'",
f4579ce7 2684 &error);
7e4249b9 2685
f4579ce7 2686 if (dbus_error_is_set(&error)) {
4cf5d675 2687 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2688 r = -EIO;
2689 goto finish;
2690 }
7e4249b9
LP		 2691 }
2692
2693 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2694 log_error("Failed to add filter.");
2695 r = -ENOMEM;
2696 goto finish;
2697 }
2698
2699 if (!(m = dbus_message_new_method_call(
2700 "org.freedesktop.systemd1",
2701 "/org/freedesktop/systemd1",
2702 "org.freedesktop.systemd1.Manager",
2703 "Subscribe"))) {
2704 log_error("Could not allocate message.");
2705 r = -ENOMEM;
2706 goto finish;
2707 }
2708
2709 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2710 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2711 r = -EIO;
2712 goto finish;
2713 }
2714
2715 while (dbus_connection_read_write_dispatch(bus, -1))
2716 ;
2717
2718 r = 0;
2719
2720finish:
2721
2722 /* This is slightly dirty, since we don't undo the filter or the matches. */
2723
2724 if (m)
2725 dbus_message_unref(m);
2726
2727 if (reply)
2728 dbus_message_unref(reply);
2729
2730 dbus_error_free(&error);
2731
2732 return r;
2733}
2734
2735static int dump(DBusConnection *bus, char **args, unsigned n) {
2736 DBusMessage *m = NULL, *reply = NULL;
2737 DBusError error;
2738 int r;
2739 const char *text;
2740
2741 dbus_error_init(&error);
2742
2743 if (!(m = dbus_message_new_method_call(
2744 "org.freedesktop.systemd1",
2745 "/org/freedesktop/systemd1",
2746 "org.freedesktop.systemd1.Manager",
2747 "Dump"))) {
2748 log_error("Could not allocate message.");
2749 return -ENOMEM;
2750 }
2751
2752 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2753 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2754 r = -EIO;
2755 goto finish;
2756 }
2757
2758 if (!dbus_message_get_args(reply, &error,
2759 DBUS_TYPE_STRING, &text,
2760 DBUS_TYPE_INVALID)) {
4cf5d675 2761 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2762 r = -EIO;
2763 goto finish;
2764 }
2765
2766 fputs(text, stdout);
2767
2768 r = 0;
2769
2770finish:
2771 if (m)
2772 dbus_message_unref(m);
2773
2774 if (reply)
2775 dbus_message_unref(reply);
2776
2777 dbus_error_free(&error);
2778
2779 return r;
2780}
2781
2782static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2783 DBusMessage *m = NULL, *reply = NULL;
2784 DBusError error;
2785 int r;
2786 const char *name = "", *path, *id;
2787 dbus_bool_t cleanup = FALSE;
2788 DBusMessageIter iter, sub;
2789 const char
2790 *interface = "org.freedesktop.systemd1.Unit",
2791 *property = "Id";
2792
2793 dbus_error_init(&error);
2794
2795 if (!(m = dbus_message_new_method_call(
2796 "org.freedesktop.systemd1",
2797 "/org/freedesktop/systemd1",
2798 "org.freedesktop.systemd1.Manager",
2799 "CreateSnapshot"))) {
2800 log_error("Could not allocate message.");
2801 return -ENOMEM;
2802 }
2803
2804 if (n > 1)
2805 name = args[1];
2806
2807 if (!dbus_message_append_args(m,
2808 DBUS_TYPE_STRING, &name,
2809 DBUS_TYPE_BOOLEAN, &cleanup,
2810 DBUS_TYPE_INVALID)) {
2811 log_error("Could not append arguments to message.");
2812 r = -ENOMEM;
2813 goto finish;
2814 }
2815
2816 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2817 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2818 r = -EIO;
2819 goto finish;
2820 }
2821
2822 if (!dbus_message_get_args(reply, &error,
2823 DBUS_TYPE_OBJECT_PATH, &path,
2824 DBUS_TYPE_INVALID)) {
4cf5d675 2825 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2826 r = -EIO;
2827 goto finish;
2828 }
2829
2830 dbus_message_unref(m);
2831 if (!(m = dbus_message_new_method_call(
2832 "org.freedesktop.systemd1",
2833 path,
2834 "org.freedesktop.DBus.Properties",
2835 "Get"))) {
2836 log_error("Could not allocate message.");
2837 return -ENOMEM;
2838 }
2839
2840 if (!dbus_message_append_args(m,
2841 DBUS_TYPE_STRING, &interface,
2842 DBUS_TYPE_STRING, &property,
2843 DBUS_TYPE_INVALID)) {
2844 log_error("Could not append arguments to message.");
2845 r = -ENOMEM;
2846 goto finish;
2847 }
2848
2849 dbus_message_unref(reply);
2850 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2851 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2852 r = -EIO;
2853 goto finish;
2854 }
2855
2856 if (!dbus_message_iter_init(reply, &iter) ||
2857 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2858 log_error("Failed to parse reply.");
2859 r = -EIO;
2860 goto finish;
2861 }
2862
2863 dbus_message_iter_recurse(&iter, &sub);
2864
2865 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2866 log_error("Failed to parse reply.");
2867 r = -EIO;
2868 goto finish;
2869 }
2870
2871 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 2872
2873 if (!arg_quiet)
2874 puts(id);
7e4249b9
LP		 2875 r = 0;
2876
2877finish:
2878 if (m)
2879 dbus_message_unref(m);
2880
2881 if (reply)
2882 dbus_message_unref(reply);
2883
2884 dbus_error_free(&error);
2885
2886 return r;
2887}
2888
6759e7a7
LP		 2889static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2890 DBusMessage *m = NULL, *reply = NULL;
2891 int r;
2892 DBusError error;
2893 unsigned i;
2894
2895 assert(bus);
2896 assert(args);
2897
2898 dbus_error_init(&error);
2899
2900 for (i = 1; i < n; i++) {
2901 const char *path = NULL;
2902
2903 if (!(m = dbus_message_new_method_call(
2904 "org.freedesktop.systemd1",
2905 "/org/freedesktop/systemd1",
2906 "org.freedesktop.systemd1.Manager",
2907 "GetUnit"))) {
2908 log_error("Could not allocate message.");
2909 r = -ENOMEM;
2910 goto finish;
2911 }
2912
2913 if (!dbus_message_append_args(m,
2914 DBUS_TYPE_STRING, &args[i],
2915 DBUS_TYPE_INVALID)) {
2916 log_error("Could not append arguments to message.");
2917 r = -ENOMEM;
2918 goto finish;
2919 }
2920
2921 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2922 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 2923 r = -EIO;
2924 goto finish;
2925 }
2926
2927 if (!dbus_message_get_args(reply, &error,
2928 DBUS_TYPE_OBJECT_PATH, &path,
2929 DBUS_TYPE_INVALID)) {
4cf5d675 2930 log_error("Failed to parse reply: %s", bus_error_message(&error));
6759e7a7
LP		 2931 r = -EIO;
2932 goto finish;
2933 }
2934
2935 dbus_message_unref(m);
2936 if (!(m = dbus_message_new_method_call(
2937 "org.freedesktop.systemd1",
2938 path,
2939 "org.freedesktop.systemd1.Snapshot",
2940 "Remove"))) {
2941 log_error("Could not allocate message.");
2942 r = -ENOMEM;
2943 goto finish;
2944 }
2945
2946 dbus_message_unref(reply);
2947 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2948 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 2949 r = -EIO;
2950 goto finish;
2951 }
2952
2953 dbus_message_unref(m);
2954 dbus_message_unref(reply);
2955 m = reply = NULL;
2956 }
2957
2958 r = 0;
2959
2960finish:
2961 if (m)
2962 dbus_message_unref(m);
2963
2964 if (reply)
2965 dbus_message_unref(reply);
2966
2967 dbus_error_free(&error);
2968
2969 return r;
2970}
2971
ee5762e3 2972static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 2973 DBusMessage *m = NULL, *reply = NULL;
2974 DBusError error;
2975 int r;
2976 const char *method;
2977
2978 dbus_error_init(&error);
2979
e4b61340
LP		 2980 if (arg_action == ACTION_RELOAD)
2981 method = "Reload";
2982 else if (arg_action == ACTION_REEXEC)
2983 method = "Reexecute";
2984 else {
2985 assert(arg_action == ACTION_SYSTEMCTL);
2986
2987 method =
20b09ca7
LP		 2988 streq(args[0], "clear-jobs") ||
2989 streq(args[0], "cancel") ? "ClearJobs" :
2990 streq(args[0], "daemon-reexec") ? "Reexecute" :
2991 streq(args[0], "reset-failed") ? "ResetFailed" :
2992 streq(args[0], "halt") ? "Halt" :
2993 streq(args[0], "poweroff") ? "PowerOff" :
2994 streq(args[0], "reboot") ? "Reboot" :
2995 streq(args[0], "kexec") ? "KExec" :
2996 streq(args[0], "exit") ? "Exit" :
2997 /* "daemon-reload" */ "Reload";
e4b61340 2998 }
7e4249b9
LP		 2999
3000 if (!(m = dbus_message_new_method_call(
3001 "org.freedesktop.systemd1",
3002 "/org/freedesktop/systemd1",
3003 "org.freedesktop.systemd1.Manager",
3004 method))) {
3005 log_error("Could not allocate message.");
3006 return -ENOMEM;
3007 }
3008
3009 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 3010
3011 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3012 /* There's always a fallback possible for
3013 * legacy actions. */
aabd9b11 3014 r = -EADDRNOTAVAIL;
e4b61340
LP		 3015 goto finish;
3016 }
3017
4cf5d675 3018 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3019 r = -EIO;
3020 goto finish;
3021 }
3022
aabd9b11 3023 r = 0;
7e4249b9
LP		 3024
3025finish:
3026 if (m)
3027 dbus_message_unref(m);
3028
3029 if (reply)
3030 dbus_message_unref(reply);
3031
3032 dbus_error_free(&error);
3033
3034 return r;
3035}
3036
fdf20a31 3037static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
5632e374
LP		 3038 DBusMessage *m = NULL, *reply = NULL;
3039 unsigned i;
3040 int r;
3041 DBusError error;
3042
3043 assert(bus);
3044 dbus_error_init(&error);
3045
3046 if (n <= 1)
ee5762e3 3047 return daemon_reload(bus, args, n);
5632e374
LP		 3048
3049 for (i = 1; i < n; i++) {
3050
3051 if (!(m = dbus_message_new_method_call(
3052 "org.freedesktop.systemd1",
3053 "/org/freedesktop/systemd1",
3054 "org.freedesktop.systemd1.Manager",
fdf20a31 3055 "ResetFailedUnit"))) {
5632e374
LP		 3056 log_error("Could not allocate message.");
3057 r = -ENOMEM;
3058 goto finish;
3059 }
3060
3061 if (!dbus_message_append_args(m,
3062 DBUS_TYPE_STRING, args + i,
3063 DBUS_TYPE_INVALID)) {
3064 log_error("Could not append arguments to message.");
3065 r = -ENOMEM;
3066 goto finish;
3067 }
3068
3069 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3070 log_error("Failed to issue method call: %s", bus_error_message(&error));
5632e374
LP		 3071 r = -EIO;
3072 goto finish;
3073 }
3074
3075 dbus_message_unref(m);
3076 dbus_message_unref(reply);
3077 m = reply = NULL;
3078 }
3079
3080 r = 0;
3081
3082finish:
3083 if (m)
3084 dbus_message_unref(m);
3085
3086 if (reply)
3087 dbus_message_unref(reply);
3088
3089 dbus_error_free(&error);
3090
3091 return r;
3092}
3093
7e4249b9
LP		 3094static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3095 DBusMessage *m = NULL, *reply = NULL;
3096 DBusError error;
3097 DBusMessageIter iter, sub, sub2;
3098 int r;
3099 const char
3100 *interface = "org.freedesktop.systemd1.Manager",
3101 *property = "Environment";
3102
3103 dbus_error_init(&error);
3104
3105 if (!(m = dbus_message_new_method_call(
3106 "org.freedesktop.systemd1",
3107 "/org/freedesktop/systemd1",
3108 "org.freedesktop.DBus.Properties",
3109 "Get"))) {
3110 log_error("Could not allocate message.");
3111 return -ENOMEM;
3112 }
3113
3114 if (!dbus_message_append_args(m,
3115 DBUS_TYPE_STRING, &interface,
3116 DBUS_TYPE_STRING, &property,
3117 DBUS_TYPE_INVALID)) {
3118 log_error("Could not append arguments to message.");
3119 r = -ENOMEM;
3120 goto finish;
3121 }
3122
3123 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3124 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3125 r = -EIO;
3126 goto finish;
3127 }
3128
3129 if (!dbus_message_iter_init(reply, &iter) ||
3130 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3131 log_error("Failed to parse reply.");
3132 r = -EIO;
3133 goto finish;
3134 }
3135
3136 dbus_message_iter_recurse(&iter, &sub);
3137
3138 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3139 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3140 log_error("Failed to parse reply.");
3141 r = -EIO;
3142 goto finish;
3143 }
3144
3145 dbus_message_iter_recurse(&sub, &sub2);
3146
3147 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3148 const char *text;
3149
3150 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3151 log_error("Failed to parse reply.");
3152 r = -EIO;
3153 goto finish;
3154 }
3155
3156 dbus_message_iter_get_basic(&sub2, &text);
3157 printf("%s\n", text);
3158
3159 dbus_message_iter_next(&sub2);
3160 }
3161
3162 r = 0;
3163
3164finish:
3165 if (m)
3166 dbus_message_unref(m);
3167
3168 if (reply)
3169 dbus_message_unref(reply);
3170
3171 dbus_error_free(&error);
3172
3173 return r;
3174}
3175
3176static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3177 DBusMessage *m = NULL, *reply = NULL;
3178 DBusError error;
3179 int r;
3180 const char *method;
3181 DBusMessageIter iter, sub;
3182 unsigned i;
3183
3184 dbus_error_init(&error);
3185
3186 method = streq(args[0], "set-environment")
3187 ? "SetEnvironment"
3188 : "UnsetEnvironment";
3189
3190 if (!(m = dbus_message_new_method_call(
3191 "org.freedesktop.systemd1",
3192 "/org/freedesktop/systemd1",
3193 "org.freedesktop.systemd1.Manager",
3194 method))) {
3195
3196 log_error("Could not allocate message.");
3197 return -ENOMEM;
3198 }
3199
3200 dbus_message_iter_init_append(m, &iter);
3201
3202 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3203 log_error("Could not append arguments to message.");
3204 r = -ENOMEM;
3205 goto finish;
3206 }
3207
3208 for (i = 1; i < n; i++)
3209 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3210 log_error("Could not append arguments to message.");
3211 r = -ENOMEM;
3212 goto finish;
3213 }
3214
3215 if (!dbus_message_iter_close_container(&iter, &sub)) {
3216 log_error("Could not append arguments to message.");
3217 r = -ENOMEM;
3218 goto finish;
3219 }
3220
3221 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3222 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3223 r = -EIO;
3224 goto finish;
3225 }
3226
3227 r = 0;
3228
3229finish:
3230 if (m)
3231 dbus_message_unref(m);
3232
3233 if (reply)
3234 dbus_message_unref(reply);
3235
3236 dbus_error_free(&error);
3237
3238 return r;
3239}
3240
ee5762e3
LP		 3241typedef struct {
3242 char *name;
3243 char *path;
3244
3245 char **aliases;
3246 char **wanted_by;
3247} InstallInfo;
3248
3249static Hashmap *will_install = NULL, *have_installed = NULL;
3250static Set *remove_symlinks_to = NULL;
560d8f23 3251static unsigned n_symlinks = 0;
ee5762e3
LP		 3252
3253static void install_info_free(InstallInfo *i) {
3254 assert(i);
3255
3256 free(i->name);
3257 free(i->path);
3258 strv_free(i->aliases);
3259 strv_free(i->wanted_by);
3260 free(i);
3261}
3262
3263static void install_info_hashmap_free(Hashmap *m) {
3264 InstallInfo *i;
3265
3266 while ((i = hashmap_steal_first(m)))
3267 install_info_free(i);
3268
3269 hashmap_free(m);
3270}
3271
ee5762e3
LP		 3272static int install_info_add(const char *name) {
3273 InstallInfo *i;
3274 int r;
3275
3276 assert(will_install);
3277
b9c0d441 3278 if (!unit_name_is_valid_no_type(name, true)) {
71fad675 3279 log_warning("Unit name %s is not a valid unit name.", name);
ee5762e3 3280 return -EINVAL;
71fad675 3281 }
ee5762e3
LP		 3282
3283 if (hashmap_get(have_installed, name) ||
3284 hashmap_get(will_install, name))
3285 return 0;
3286
3287 if (!(i = new0(InstallInfo, 1))) {
3288 r = -ENOMEM;
3289 goto fail;
3290 }
3291
3292 if (!(i->name = strdup(name))) {
3293 r = -ENOMEM;
3294 goto fail;
3295 }
3296
3297 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3298 goto fail;
3299
3300 return 0;
3301
3302fail:
3303 if (i)
3304 install_info_free(i);
3305
3306 return r;
3307}
3308
3309static int config_parse_also(
3310 const char *filename,
3311 unsigned line,
3312 const char *section,
3313 const char *lvalue,
3314 const char *rvalue,
3315 void *data,
3316 void *userdata) {
3317
3318 char *w;
3319 size_t l;
3320 char *state;
3321
3322 assert(filename);
3323 assert(lvalue);
3324 assert(rvalue);
3325
3326 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3327 char *n;
3328 int r;
3329
3330 if (!(n = strndup(w, l)))
3331 return -ENOMEM;
3332
71fad675
LP		 3333 if ((r = install_info_add(n)) < 0) {
3334 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3335 free(n);
ee5762e3 3336 return r;
71fad675
LP		 3337 }
3338
3339 free(n);
ee5762e3
LP		 3340 }
3341
3342 return 0;
3343}
3344
3345static int mark_symlink_for_removal(const char *p) {
3346 char *n;
3347 int r;
3348
3349 assert(p);
3350 assert(path_is_absolute(p));
3351
3352 if (!remove_symlinks_to)
3353 return 0;
3354
3355 if (!(n = strdup(p)))
3356 return -ENOMEM;
3357
3358 path_kill_slashes(n);
3359
3360 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3361 free(n);
3362 return r == -EEXIST ? 0 : r;
3363 }
3364
3365 return 0;
3366}
3367
3368static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3369 int r = 0;
3370 DIR *d;
3371 struct dirent *de;
3372
3373 assert(fd >= 0);
3374 assert(root);
3375 assert(deleted);
3376
3377 if (!(d = fdopendir(fd))) {
3378 close_nointr_nofail(fd);
3379 return -errno;
3380 }
3381
3382 rewinddir(d);
3383
3384 while ((de = readdir(d))) {
3385 bool is_dir = false, is_link = false;
3386
3387 if (ignore_file(de->d_name))
3388 continue;
3389
3390 if (de->d_type == DT_LNK)
3391 is_link = true;
3392 else if (de->d_type == DT_DIR)
3393 is_dir = true;
3394 else if (de->d_type == DT_UNKNOWN) {
3395 struct stat st;
3396
3397 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3398 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3399
3400 if (r == 0)
3401 r = -errno;
3402 continue;
3403 }
3404
3405 is_link = S_ISLNK(st.st_mode);
3406 is_dir = S_ISDIR(st.st_mode);
3407 } else
3408 continue;
3409
3410 if (is_dir) {
3411 int nfd, q;
3412 char *p;
3413
3414 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3415 log_error("Failed to open %s/%s: %m", root, de->d_name);
3416
3417 if (r == 0)
3418 r = -errno;
3419 continue;
3420 }
3421
3422 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3423 log_error("Failed to allocate directory string.");
3424 close_nointr_nofail(nfd);
3425 r = -ENOMEM;
3426 break;
3427 }
3428
3429 /* This will close nfd, regardless whether it succeeds or not */
3430 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3431 free(p);
3432
3433 if (r == 0)
e364ad06 3434 r = q;
ee5762e3
LP		 3435
3436 } else if (is_link) {
3437 char *p, *dest, *c;
3438 int q;
3439
3440 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3441 log_error("Failed to allocate symlink string.");
3442 r = -ENOMEM;
3443 break;
3444 }
3445
3446 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3447 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3448 free(p);
3449
3450 if (r == 0)
3451 r = q;
3452 continue;
3453 }
3454
3455 if ((c = canonicalize_file_name(dest))) {
3456 /* This might fail if the destination
3457 * is already removed */
3458
3459 free(dest);
3460 dest = c;
3461 }
3462
3463 path_kill_slashes(dest);
3464 if (set_get(remove_symlinks_to, dest)) {
3465
3466 if (!arg_quiet)
3467 log_info("rm '%s'", p);
3468
3469 if (unlink(p) < 0) {
3470 log_error("Cannot unlink symlink %s: %m", p);
3471
3472 if (r == 0)
3473 r = -errno;
3474 } else {
3475 rmdir_parents(p, config_path);
3476 path_kill_slashes(p);
3477
3478 if (!set_get(remove_symlinks_to, p)) {
3479
3480 if ((r = mark_symlink_for_removal(p)) < 0) {
3481 if (r == 0)
3482 r = q;
3483 } else
3484 *deleted = true;
3485 }
3486 }
3487 }
3488
3489 free(p);
3490 free(dest);
3491 }
3492 }
3493
3494 closedir(d);
3495
3496 return r;
3497}
3498
3499static int remove_marked_symlinks(const char *config_path) {
3500 int fd, r = 0;
3501 bool deleted;
3502
3503 assert(config_path);
3504
3505 if (set_size(remove_symlinks_to) <= 0)
3506 return 0;
3507
3508 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3509 return -errno;
3510
3511 do {
3512 int q, cfd;
3513 deleted = false;
3514
3515 if ((cfd = dup(fd)) < 0) {
3516 r = -errno;
3517 break;
3518 }
3519
3520 /* This takes possession of cfd and closes it */
3521 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3522 if (r == 0)
3523 r = q;
3524 }
3525 } while (deleted);
3526
3527 close_nointr_nofail(fd);
3528
3529 return r;
3530}
3531
3532static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3533 int r;
3534
3535 assert(old_path);
3536 assert(new_path);
3537 assert(verb);
3538
3539 if (streq(verb, "enable")) {
3540 char *dest;
3541
3542 mkdir_parents(new_path, 0755);
3543
3544 if (symlink(old_path, new_path) >= 0) {
3545
3546 if (!arg_quiet)
3547 log_info("ln -s '%s' '%s'", old_path, new_path);
3548
3549 return 0;
3550 }
3551
3552 if (errno != EEXIST) {
3553 log_error("Cannot link %s to %s: %m", old_path, new_path);
3554 return -errno;
3555 }
3556
3557 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3558
3559 if (errno == EINVAL) {
3560 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3561 return -EEXIST;
3562 }
3563
3564 log_error("readlink() failed: %s", strerror(-r));
3565 return r;
3566 }
3567
3568 if (streq(dest, old_path)) {
3569 free(dest);
3570 return 0;
3571 }
3572
3573 if (!arg_force) {
3574 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3575 free(dest);
3576 return -EEXIST;
3577 }
3578
3579 free(dest);
3580 unlink(new_path);
3581
3582 if (!arg_quiet)
3583 log_info("ln -s '%s' '%s'", old_path, new_path);
3584
3585 if (symlink(old_path, new_path) >= 0)
3586 return 0;
3587
3588 log_error("Cannot link %s to %s: %m", old_path, new_path);
3589 return -errno;
3590
3591 } else if (streq(verb, "disable")) {
3592 char *dest;
3593
3594 if ((r = mark_symlink_for_removal(old_path)) < 0)
3595 return r;
3596
3597 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3598 if (errno == ENOENT)
3599 return 0;
3600
3601 if (errno == EINVAL) {
3602 log_warning("File %s not a symlink, ignoring.", old_path);
3603 return 0;
3604 }
3605
3606 log_error("readlink() failed: %s", strerror(-r));
3607 return r;
3608 }
3609
3610 if (!streq(dest, old_path)) {
3611 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3612 free(dest);
3613 return 0;
3614 }
3615
3616 free(dest);
3617
3618 if ((r = mark_symlink_for_removal(new_path)) < 0)
3619 return r;
3620
3621 if (!arg_quiet)
3622 log_info("rm '%s'", new_path);
3623
3624 if (unlink(new_path) >= 0)
3625 return 0;
3626
3627 log_error("Cannot unlink %s: %m", new_path);
3628 return -errno;
3629
3630 } else if (streq(verb, "is-enabled")) {
3631 char *dest;
3632
3633 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3634
3635 if (errno == ENOENT || errno == EINVAL)
3636 return 0;
3637
3638 log_error("readlink() failed: %s", strerror(-r));
3639 return r;
3640 }
3641
3642 if (streq(dest, old_path)) {
3643 free(dest);
3644 return 1;
3645 }
3646
3647 return 0;
3648 }
3649
3650 assert_not_reached("Unknown action.");
3651}
3652
3653static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3654 char **s;
3655 char *alias_path = NULL;
3656 int r;
3657
3658 assert(verb);
3659 assert(i);
3660 assert(config_path);
3661
3662 STRV_FOREACH(s, i->aliases) {
3663
ee5762e3
LP		 3664 free(alias_path);
3665 if (!(alias_path = path_make_absolute(*s, config_path))) {
3666 log_error("Out of memory");
3667 r = -ENOMEM;
3668 goto finish;
3669 }
3670
3671 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3672 goto finish;
3673
3674 if (streq(verb, "disable"))
3675 rmdir_parents(alias_path, config_path);
3676 }
ee5762e3
LP		 3677 r = 0;
3678
3679finish:
3680 free(alias_path);
3681
3682 return r;
3683}
3684
3685static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3686 char **s;
3687 char *alias_path = NULL;
3688 int r;
3689
3690 assert(verb);
3691 assert(i);
3692 assert(config_path);
3693
3694 STRV_FOREACH(s, i->wanted_by) {
b9c0d441 3695 if (!unit_name_is_valid_no_type(*s, true)) {
ee5762e3
LP		 3696 log_error("Invalid name %s.", *s);
3697 r = -EINVAL;
3698 goto finish;
3699 }
3700
3701 free(alias_path);
3702 alias_path = NULL;
3703
3704 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3705 log_error("Out of memory");
3706 r = -ENOMEM;
3707 goto finish;
3708 }
3709
3710 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3711 goto finish;
3712
3713 if (streq(verb, "disable"))
3714 rmdir_parents(alias_path, config_path);
3715 }
3716
3717 r = 0;
3718
3719finish:
3720 free(alias_path);
3721
3722 return r;
3723}
3724
3725static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3726
3727 const ConfigItem items[] = {
3728 { "Alias", config_parse_strv, &i->aliases, "Install" },
3729 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3730 { "Also", config_parse_also, NULL, "Install" },
3731
3732 { NULL, NULL, NULL, NULL }
3733 };
3734
3735 char **p;
3736 char *filename = NULL;
3737 FILE *f = NULL;
3738 int r;
3739
3740 assert(paths);
3741 assert(i);
3742
3743 STRV_FOREACH(p, paths->unit_path) {
3744 int fd;
3745
3746 if (!(filename = path_make_absolute(i->name, *p))) {
3747 log_error("Out of memory");
3748 return -ENOMEM;
3749 }
3750
3751 /* Ensure that we don't follow symlinks */
3752 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3753 if ((f = fdopen(fd, "re")))
3754 break;
3755
3756 if (errno == ELOOP) {
3757 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3758 free(filename);
3759 return -errno;
3760 }
3761
3762 if (errno != ENOENT) {
3763 log_error("Failed to open %s: %m", filename);
3764 free(filename);
3765 return -errno;
3766 }
3767
3768 free(filename);
3769 filename = NULL;
3770 }
3771
3772 if (!f) {
3773 log_error("Couldn't find %s.", i->name);
3774 return -ENOENT;
3775 }
3776
3777 i->path = filename;
3778
3779 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3780 fclose(f);
3781 return r;
3782 }
3783
560d8f23
LP		 3784 n_symlinks += strv_length(i->aliases);
3785 n_symlinks += strv_length(i->wanted_by);
3786
ee5762e3
LP		 3787 fclose(f);
3788
3789 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3790 return r;
3791
3792 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3793 return r;
3794
3795 if ((r = mark_symlink_for_removal(filename)) < 0)
3796 return r;
3797
3798 if ((r = remove_marked_symlinks(config_path)) < 0)
3799 return r;
3800
3801 return 0;
3802}
3803
3804static char *get_config_path(void) {
3805
3806 if (arg_session && arg_global)
3807 return strdup(SESSION_CONFIG_UNIT_PATH);
3808
3809 if (arg_session) {
3810 char *p;
3811
3812 if (session_config_home(&p) < 0)
3813 return NULL;
3814
3815 return p;
3816 }
3817
3818 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3819}
3820
3821static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3822 DBusError error;
3823 int r;
3824 LookupPaths paths;
3825 char *config_path = NULL;
3826 unsigned j;
3827 InstallInfo *i;
3828 const char *verb = args[0];
3829
3830 dbus_error_init(&error);
3831
3832 zero(paths);
3833 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3834 log_error("Failed to determine lookup paths: %s", strerror(-r));
3835 goto finish;
3836 }
3837
3838 if (!(config_path = get_config_path())) {
3839 log_error("Failed to determine config path");
3840 r = -ENOMEM;
3841 goto finish;
3842 }
3843
3844 will_install = hashmap_new(string_hash_func, string_compare_func);
3845 have_installed = hashmap_new(string_hash_func, string_compare_func);
3846
3847 if (!will_install || !have_installed) {
3848 log_error("Failed to allocate unit sets.");
3849 r = -ENOMEM;
3850 goto finish;
3851 }
3852
3853 if (!arg_defaults && streq(verb, "disable"))
3854 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3855 log_error("Failed to allocate symlink sets.");
3856 r = -ENOMEM;
3857 goto finish;
3858 }
3859
3860 for (j = 1; j < n; j++)
71fad675
LP		 3861 if ((r = install_info_add(args[j])) < 0) {
3862 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
ee5762e3 3863 goto finish;
71fad675 3864 }
ee5762e3
LP		 3865
3866 while ((i = hashmap_first(will_install))) {
3867 int q;
3868
3869 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3870
3871 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3872
3873 if (q < 0) {
3874 if (r == 0)
3875 r = q;
3876 goto finish;
3877 }
3878
3879 /* In test mode and found something */
3880 r = 1;
3881 break;
3882 }
3883 }
3884
3885 if (streq(verb, "is-enabled"))
3886 r = r > 0 ? 0 : -ENOENT;
560d8f23
LP		 3887 else {
3888 if (n_symlinks <= 0)
3889 log_warning("Unit files contain no applicable installation information. Ignoring.");
3890
3891 if (bus &&
3892 /* Don't try to reload anything if the user asked us to not do this */
3893 !arg_no_reload &&
3894 /* Don't try to reload anything when updating a unit globally */
3895 !arg_global &&
3896 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3897 (arg_session || sd_booted() > 0) &&
3898 /* Don't try to reload anything if we are running in a chroot environment */
3899 (arg_session || running_in_chroot() <= 0) ) {
3900 int q;
ee5762e3 3901
560d8f23
LP		 3902 if ((q = daemon_reload(bus, args, n)) < 0)
3903 r = q;
3904 }
ee5762e3
LP		 3905 }
3906
3907finish:
3908 install_info_hashmap_free(will_install);
3909 install_info_hashmap_free(have_installed);
3910
3911 set_free_free(remove_symlinks_to);
3912
3913 lookup_paths_free(&paths);
3914
3915 free(config_path);
3916
3917 return r;
3918}
3919
e4b61340 3920static int systemctl_help(void) {
7e4249b9 3921
2e33c433 3922 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 3923 "Send control commands to or query the systemd manager.\n\n"
48220598 3924 " -h --help Show this help\n"
35df8f27 3925 " --version Show package version\n"
48220598 3926 " -t --type=TYPE List only units of a particular type\n"
393a2f9b 3927 " -p --property=NAME Show only properties by this name\n"
48220598 3928 " -a --all Show all units/properties, including dead/empty ones\n"
ee5762e3
LP		 3929 " --full Don't ellipsize unit names on output\n"
3930 " --fail When queueing a new job, fail if conflicting jobs are\n"
6f28c033 3931 " pending\n"
ee5762e3
LP		 3932 " -q --quiet Suppress output\n"
3933 " --no-block Do not wait until operation finished\n"
48220598
LP		 3934 " --system Connect to system bus\n"
3935 " --session Connect to session bus\n"
4445a875 3936 " --order When generating graph for dot, show only order\n"
ee5762e3
LP		 3937 " --require When generating graph for dot, show only requirement\n"
3938 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3939 " --global Enable/disable unit files globally\n"
3940 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3941 " configuration\n"
b4f27ccc 3942 " -f --force When enabling unit files, override existing symlinks\n"
20b09ca7 3943 " When shutting down, execute action immediately\n"
ee5762e3 3944 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 3945 "Commands:\n"
3946 " list-units List units\n"
ee5762e3
LP		 3947 " start [NAME...] Start (activate) one or more units\n"
3948 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 3949 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 3950 " restart [NAME...] Start or restart one or more units\n"
3951 " try-restart [NAME...] Restart one or more units if active\n"
3952 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3953 " otherwise start or restart\n"
3954 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3955 " otherwise restart if active\n"
7e4249b9 3956 " isolate [NAME] Start one unit and stop all others\n"
ee5762e3 3957 " is-active [NAME...] Check whether units are active\n"
75676b72 3958 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 3959 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3 3960 " units/jobs or the manager\n"
fdf20a31
MM		 3961 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
3962 " units\n"
ee5762e3
LP		 3963 " enable [NAME...] Enable one or more unit files\n"
3964 " disable [NAME...] Disable one or more unit files\n"
3965 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 3966 " load [NAME...] Load one or more units\n"
3967 " list-jobs List jobs\n"
ee5762e3 3968 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 3969 " monitor Monitor unit/job changes\n"
3970 " dump Dump server status\n"
4445a875 3971 " dot Dump dependency graph for dot(1)\n"
7e4249b9 3972 " snapshot [NAME] Create a snapshot\n"
6759e7a7 3973 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 3974 " daemon-reload Reload systemd manager configuration\n"
3975 " daemon-reexec Reexecute systemd manager\n"
7e4249b9
LP		 3976 " show-environment Dump environment\n"
3977 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5 3978 " unset-environment [NAME...] Unset one or more environment variables\n"
20b09ca7
LP		 3979 " default Enter system default mode\n"
3980 " rescue Enter system rescue mode\n"
3981 " emergency Enter system emergency mode\n"
514f4ef5 3982 " halt Shut down and halt the system\n"
2e33c433 3983 " poweroff Shut down and power-off the system\n"
514f4ef5 3984 " reboot Shut down and reboot the system\n"
20b09ca7
LP		 3985 " kexec Shut down and reboot the system with kexec\n"
3986 " exit Ask for session termination\n",
5b6319dc 3987 program_invocation_short_name);
7e4249b9
LP		 3988
3989 return 0;
3990}
3991
e4b61340
LP		 3992static int halt_help(void) {
3993
2e33c433 3994 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3995 "%s the system.\n\n"
3996 " --help Show this help\n"
3997 " --halt Halt the machine\n"
3998 " -p --poweroff Switch off the machine\n"
3999 " --reboot Reboot the machine\n"
2e33c433
LP		 4000 " -f --force Force immediate halt/power-off/reboot\n"
4001 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 4002 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 4003 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4004 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 4005 program_invocation_short_name,
4006 arg_action == ACTION_REBOOT ? "Reboot" :
4007 arg_action == ACTION_POWEROFF ? "Power off" :
4008 "Halt");
4009
4010 return 0;
4011}
4012
4013static int shutdown_help(void) {
4014
08e4b1c5 4015 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
e4b61340
LP		 4016 "Shut down the system.\n\n"
4017 " --help Show this help\n"
4018 " -H --halt Halt the machine\n"
4019 " -P --poweroff Power-off the machine\n"
4020 " -r --reboot Reboot the machine\n"
4021 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433 4022 " -k Don't halt/power-off/reboot, just send warnings\n"
f6144808 4023 " --no-wall Don't send wall message before halt/power-off/reboot\n"
f6144808 4024 " -c Cancel a pending shutdown\n",
e4b61340
LP		 4025 program_invocation_short_name);
4026
4027 return 0;
4028}
4029
4030static int telinit_help(void) {
4031
2e33c433 4032 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 4033 "Send control commands to the init daemon.\n\n"
4034 " --help Show this help\n"
2e33c433 4035 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 4036 "Commands:\n"
4037 " 0 Power-off the machine\n"
4038 " 6 Reboot the machine\n"
514f4ef5
LP		 4039 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4040 " 1, s, S Enter rescue mode\n"
4041 " q, Q Reload init daemon configuration\n"
4042 " u, U Reexecute init daemon\n",
e4b61340
LP		 4043 program_invocation_short_name);
4044
4045 return 0;
4046}
4047
4048static int runlevel_help(void) {
4049
2e33c433 4050 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4051 "Prints the previous and current runlevel of the init system.\n\n"
4052 " --help Show this help\n",
4053 program_invocation_short_name);
4054
4055 return 0;
4056}
4057
4058static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 4059
4060 enum {
90d473a1 4061 ARG_FAIL = 0x100,
35df8f27 4062 ARG_VERSION,
7e4249b9
LP		 4063 ARG_SESSION,
4064 ARG_SYSTEM,
ee5762e3 4065 ARG_GLOBAL,
6e905d93 4066 ARG_NO_BLOCK,
4445a875
LP		 4067 ARG_NO_WALL,
4068 ARG_ORDER,
8fe914ec 4069 ARG_REQUIRE,
ee5762e3 4070 ARG_FULL,
ee5762e3 4071 ARG_NO_RELOAD,
22f4096c 4072 ARG_DEFAULTS
7e4249b9
LP		 4073 };
4074
4075 static const struct option options[] = {
ee5762e3 4076 { "help", no_argument, NULL, 'h' },
35df8f27 4077 { "version", no_argument, NULL, ARG_VERSION },
ee5762e3
LP		 4078 { "type", required_argument, NULL, 't' },
4079 { "property", required_argument, NULL, 'p' },
4080 { "all", no_argument, NULL, 'a' },
4081 { "full", no_argument, NULL, ARG_FULL },
4082 { "fail", no_argument, NULL, ARG_FAIL },
4083 { "session", no_argument, NULL, ARG_SESSION },
4084 { "system", no_argument, NULL, ARG_SYSTEM },
4085 { "global", no_argument, NULL, ARG_GLOBAL },
4086 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4087 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4088 { "quiet", no_argument, NULL, 'q' },
4089 { "order", no_argument, NULL, ARG_ORDER },
4090 { "require", no_argument, NULL, ARG_REQUIRE },
b4f27ccc 4091 { "force", no_argument, NULL, 'f' },
ee5762e3 4092 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
f1e36d67 4093 { "defaults", no_argument, NULL, ARG_DEFAULTS },
ee5762e3 4094 { NULL, 0, NULL, 0 }
7e4249b9
LP		 4095 };
4096
4097 int c;
4098
e4b61340 4099 assert(argc >= 0);
7e4249b9
LP		 4100 assert(argv);
4101
b4f27ccc 4102 while ((c = getopt_long(argc, argv, "ht:p:aqf", options, NULL)) >= 0) {
7e4249b9
LP		 4103
4104 switch (c) {
4105
4106 case 'h':
e4b61340 4107 systemctl_help();
7e4249b9 4108 return 0;
35df8f27
LP		 4109
4110 case ARG_VERSION:
4111 puts(PACKAGE_STRING);
7d568925
LP		 4112 puts(DISTRIBUTION);
4113 puts(SYSTEMD_FEATURES);
35df8f27 4114 return 0;
7e4249b9
LP		 4115
4116 case 't':
4117 arg_type = optarg;
4118 break;
4119
ea4a240d
LP		 4120 case 'p': {
4121 char **l;
4122
4123 if (!(l = strv_append(arg_property, optarg)))
4124 return -ENOMEM;
4125
4126 strv_free(arg_property);
4127 arg_property = l;
48220598
LP		 4128
4129 /* If the user asked for a particular
4130 * property, show it to him, even if it is
4131 * empty. */
4132 arg_all = true;
4133 break;
ea4a240d 4134 }
48220598 4135
7e4249b9
LP		 4136 case 'a':
4137 arg_all = true;
4138 break;
4139
90d473a1
LP		 4140 case ARG_FAIL:
4141 arg_fail = true;
7e4249b9
LP		 4142 break;
4143
4144 case ARG_SESSION:
4145 arg_session = true;
4146 break;
4147
4148 case ARG_SYSTEM:
4149 arg_session = false;
4150 break;
4151
6e905d93
LP		 4152 case ARG_NO_BLOCK:
4153 arg_no_block = true;
7e4249b9
LP		 4154 break;
4155
514f4ef5
LP		 4156 case ARG_NO_WALL:
4157 arg_no_wall = true;
4158 break;
4159
4445a875
LP		 4160 case ARG_ORDER:
4161 arg_dot = DOT_ORDER;
4162 break;
4163
4164 case ARG_REQUIRE:
4165 arg_dot = DOT_REQUIRE;
4166 break;
4167
8fe914ec
LP		 4168 case ARG_FULL:
4169 arg_full = true;
4170 break;
4171
0183528f
LP		 4172 case 'q':
4173 arg_quiet = true;
4174 break;
4175
b4f27ccc 4176 case 'f':
ee5762e3
LP		 4177 arg_force = true;
4178 break;
4179
4180 case ARG_NO_RELOAD:
4181 arg_no_reload = true;
4182 break;
4183
4184 case ARG_GLOBAL:
4185 arg_global = true;
4186 arg_session = true;
4187 break;
4188
4189 case ARG_DEFAULTS:
4190 arg_defaults = true;
4191 break;
4192
7e4249b9
LP		 4193 case '?':
4194 return -EINVAL;
4195
4196 default:
4197 log_error("Unknown option code %c", c);
4198 return -EINVAL;
4199 }
4200 }
4201
4202 return 1;
4203}
4204
e4b61340
LP		 4205static int halt_parse_argv(int argc, char *argv[]) {
4206
4207 enum {
4208 ARG_HELP = 0x100,
4209 ARG_HALT,
514f4ef5
LP		 4210 ARG_REBOOT,
4211 ARG_NO_WALL
e4b61340
LP		 4212 };
4213
4214 static const struct option options[] = {
4215 { "help", no_argument, NULL, ARG_HELP },
4216 { "halt", no_argument, NULL, ARG_HALT },
4217 { "poweroff", no_argument, NULL, 'p' },
4218 { "reboot", no_argument, NULL, ARG_REBOOT },
4219 { "force", no_argument, NULL, 'f' },
4220 { "wtmp-only", no_argument, NULL, 'w' },
4221 { "no-wtmp", no_argument, NULL, 'd' },
4222 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 4223 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4224 { NULL, 0, NULL, 0 }
4225 };
4226
4227 int c, runlevel;
4228
4229 assert(argc >= 0);
4230 assert(argv);
4231
4232 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4233 if (runlevel == '0' || runlevel == '6')
4234 arg_immediate = true;
4235
4236 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4237 switch (c) {
4238
4239 case ARG_HELP:
4240 halt_help();
4241 return 0;
4242
4243 case ARG_HALT:
4244 arg_action = ACTION_HALT;
4245 break;
4246
4247 case 'p':
a042efad
MS		 4248 if (arg_action != ACTION_REBOOT)
4249 arg_action = ACTION_POWEROFF;
e4b61340
LP		 4250 break;
4251
4252 case ARG_REBOOT:
4253 arg_action = ACTION_REBOOT;
4254 break;
4255
4256 case 'f':
4257 arg_immediate = true;
4258 break;
4259
4260 case 'w':
4261 arg_dry = true;
4262 break;
4263
4264 case 'd':
4265 arg_no_wtmp = true;
4266 break;
4267
4268 case 'n':
4269 arg_no_sync = true;
4270 break;
4271
514f4ef5
LP		 4272 case ARG_NO_WALL:
4273 arg_no_wall = true;
4274 break;
4275
e4b61340
LP		 4276 case 'i':
4277 case 'h':
4278 /* Compatibility nops */
4279 break;
4280
4281 case '?':
4282 return -EINVAL;
4283
4284 default:
4285 log_error("Unknown option code %c", c);
4286 return -EINVAL;
4287 }
4288 }
4289
4290 if (optind < argc) {
4291 log_error("Too many arguments.");
4292 return -EINVAL;
4293 }
4294
4295 return 1;
4296}
4297
f6144808
LP		 4298static int parse_time_spec(const char *t, usec_t *_u) {
4299 assert(t);
4300 assert(_u);
4301
4302 if (streq(t, "now"))
4303 *_u = 0;
4304 else if (t[0] == '+') {
4305 uint64_t u;
4306
4307 if (safe_atou64(t + 1, &u) < 0)
4308 return -EINVAL;
4309
4310 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4311 } else {
4312 char *e = NULL;
4313 long hour, minute;
4314 struct tm tm;
4315 time_t s;
4316 usec_t n;
4317
4318 errno = 0;
4319 hour = strtol(t, &e, 10);
4320 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4321 return -EINVAL;
4322
4323 minute = strtol(e+1, &e, 10);
4324 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4325 return -EINVAL;
4326
4327 n = now(CLOCK_REALTIME);
08e4b1c5
LP		 4328 s = (time_t) (n / USEC_PER_SEC);
4329
4330 zero(tm);
f6144808
LP		 4331 assert_se(localtime_r(&s, &tm));
4332
4333 tm.tm_hour = (int) hour;
4334 tm.tm_min = (int) minute;
08e4b1c5 4335 tm.tm_sec = 0;
f6144808
LP		 4336
4337 assert_se(s = mktime(&tm));
4338
4339 *_u = (usec_t) s * USEC_PER_SEC;
4340
4341 while (*_u <= n)
4342 *_u += USEC_PER_DAY;
4343 }
4344
4345 return 0;
4346}
4347
e4b61340
LP		 4348static int shutdown_parse_argv(int argc, char *argv[]) {
4349
4350 enum {
4351 ARG_HELP = 0x100,
514f4ef5 4352 ARG_NO_WALL
e4b61340
LP		 4353 };
4354
4355 static const struct option options[] = {
4356 { "help", no_argument, NULL, ARG_HELP },
4357 { "halt", no_argument, NULL, 'H' },
4358 { "poweroff", no_argument, NULL, 'P' },
4359 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4360 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4361 { NULL, 0, NULL, 0 }
4362 };
4363
f6144808 4364 int c, r;
e4b61340
LP		 4365
4366 assert(argc >= 0);
4367 assert(argv);
4368
f6144808 4369 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
e4b61340
LP		 4370 switch (c) {
4371
4372 case ARG_HELP:
4373 shutdown_help();
4374 return 0;
4375
4376 case 'H':
4377 arg_action = ACTION_HALT;
4378 break;
4379
4380 case 'P':
4381 arg_action = ACTION_POWEROFF;
4382 break;
4383
4384 case 'r':
4385 arg_action = ACTION_REBOOT;
4386 break;
4387
4388 case 'h':
4389 if (arg_action != ACTION_HALT)
4390 arg_action = ACTION_POWEROFF;
4391 break;
4392
4393 case 'k':
4394 arg_dry = true;
4395 break;
4396
514f4ef5
LP		 4397 case ARG_NO_WALL:
4398 arg_no_wall = true;
4399 break;
4400
e4b61340
LP		 4401 case 't':
4402 case 'a':
4403 /* Compatibility nops */
4404 break;
4405
f6144808
LP		 4406 case 'c':
4407 arg_action = ACTION_CANCEL_SHUTDOWN;
4408 break;
4409
e4b61340
LP		 4410 case '?':
4411 return -EINVAL;
4412
4413 default:
4414 log_error("Unknown option code %c", c);
4415 return -EINVAL;
4416 }
4417 }
4418
6b5ad000 4419 if (argc > optind) {
f6144808
LP		 4420 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4421 log_error("Failed to parse time specification: %s", argv[optind]);
4422 return r;
4423 }
6b5ad000 4424 } else
08e4b1c5 4425 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
442b9094 4426
f6144808 4427 /* We skip the time argument */
e4b61340
LP		 4428 if (argc > optind + 1)
4429 arg_wall = argv + optind + 1;
4430
4431 optind = argc;
4432
4433 return 1;
e4b61340
LP		 4434}
4435
4436static int telinit_parse_argv(int argc, char *argv[]) {
4437
4438 enum {
4439 ARG_HELP = 0x100,
514f4ef5 4440 ARG_NO_WALL
e4b61340
LP		 4441 };
4442
4443 static const struct option options[] = {
4444 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4445 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4446 { NULL, 0, NULL, 0 }
4447 };
4448
4449 static const struct {
4450 char from;
4451 enum action to;
4452 } table[] = {
4453 { '0', ACTION_POWEROFF },
4454 { '6', ACTION_REBOOT },
ef2f1067 4455 { '1', ACTION_RESCUE },
e4b61340
LP		 4456 { '2', ACTION_RUNLEVEL2 },
4457 { '3', ACTION_RUNLEVEL3 },
4458 { '4', ACTION_RUNLEVEL4 },
4459 { '5', ACTION_RUNLEVEL5 },
4460 { 's', ACTION_RESCUE },
4461 { 'S', ACTION_RESCUE },
4462 { 'q', ACTION_RELOAD },
4463 { 'Q', ACTION_RELOAD },
4464 { 'u', ACTION_REEXEC },
4465 { 'U', ACTION_REEXEC }
4466 };
4467
4468 unsigned i;
4469 int c;
4470
4471 assert(argc >= 0);
4472 assert(argv);
4473
4474 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4475 switch (c) {
4476
4477 case ARG_HELP:
4478 telinit_help();
4479 return 0;
4480
514f4ef5
LP		 4481 case ARG_NO_WALL:
4482 arg_no_wall = true;
4483 break;
4484
e4b61340
LP		 4485 case '?':
4486 return -EINVAL;
4487
4488 default:
4489 log_error("Unknown option code %c", c);
4490 return -EINVAL;
4491 }
4492 }
4493
4494 if (optind >= argc) {
2f02ce40 4495 telinit_help();
e4b61340
LP		 4496 return -EINVAL;
4497 }
4498
4499 if (optind + 1 < argc) {
4500 log_error("Too many arguments.");
4501 return -EINVAL;
4502 }
4503
4504 if (strlen(argv[optind]) != 1) {
4505 log_error("Expected single character argument.");
4506 return -EINVAL;
4507 }
4508
4509 for (i = 0; i < ELEMENTSOF(table); i++)
4510 if (table[i].from == argv[optind][0])
4511 break;
4512
4513 if (i >= ELEMENTSOF(table)) {
4514 log_error("Unknown command %s.", argv[optind]);
4515 return -EINVAL;
4516 }
4517
4518 arg_action = table[i].to;
4519
4520 optind ++;
4521
4522 return 1;
4523}
4524
4525static int runlevel_parse_argv(int argc, char *argv[]) {
4526
4527 enum {
4528 ARG_HELP = 0x100,
4529 };
4530
4531 static const struct option options[] = {
4532 { "help", no_argument, NULL, ARG_HELP },
4533 { NULL, 0, NULL, 0 }
4534 };
4535
4536 int c;
4537
4538 assert(argc >= 0);
4539 assert(argv);
4540
4541 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4542 switch (c) {
4543
4544 case ARG_HELP:
4545 runlevel_help();
4546 return 0;
4547
4548 case '?':
4549 return -EINVAL;
4550
4551 default:
4552 log_error("Unknown option code %c", c);
4553 return -EINVAL;
4554 }
4555 }
4556
4557 if (optind < argc) {
4558 log_error("Too many arguments.");
4559 return -EINVAL;
4560 }
4561
4562 return 1;
4563}
4564
4565static int parse_argv(int argc, char *argv[]) {
4566 assert(argc >= 0);
4567 assert(argv);
4568
4569 if (program_invocation_short_name) {
4570
4571 if (strstr(program_invocation_short_name, "halt")) {
4572 arg_action = ACTION_HALT;
4573 return halt_parse_argv(argc, argv);
4574 } else if (strstr(program_invocation_short_name, "poweroff")) {
4575 arg_action = ACTION_POWEROFF;
4576 return halt_parse_argv(argc, argv);
4577 } else if (strstr(program_invocation_short_name, "reboot")) {
4578 arg_action = ACTION_REBOOT;
4579 return halt_parse_argv(argc, argv);
4580 } else if (strstr(program_invocation_short_name, "shutdown")) {
4581 arg_action = ACTION_POWEROFF;
4582 return shutdown_parse_argv(argc, argv);
4583 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4584
4585 if (sd_booted() > 0) {
4586 arg_action = ACTION_INVALID;
4587 return telinit_parse_argv(argc, argv);
4588 } else {
4589 /* Hmm, so some other init system is
4590 * running, we need to forward this
4591 * request to it. For now we simply
4592 * guess that it is Upstart. */
4593
4594 execv("/lib/upstart/telinit", argv);
4595
4596 log_error("Couldn't find an alternative telinit implementation to spawn.");
4597 return -EIO;
4598 }
4599
e4b61340
LP		 4600 } else if (strstr(program_invocation_short_name, "runlevel")) {
4601 arg_action = ACTION_RUNLEVEL;
4602 return runlevel_parse_argv(argc, argv);
4603 }
4604 }
4605
4606 arg_action = ACTION_SYSTEMCTL;
4607 return systemctl_parse_argv(argc, argv);
4608}
4609
d55ae9e6 4610static int action_to_runlevel(void) {
eb22ac37
LP		 4611
4612 static const char table[_ACTION_MAX] = {
4613 [ACTION_HALT] = '0',
4614 [ACTION_POWEROFF] = '0',
4615 [ACTION_REBOOT] = '6',
4616 [ACTION_RUNLEVEL2] = '2',
4617 [ACTION_RUNLEVEL3] = '3',
4618 [ACTION_RUNLEVEL4] = '4',
4619 [ACTION_RUNLEVEL5] = '5',
4620 [ACTION_RESCUE] = '1'
4621 };
4622
d55ae9e6
LP		 4623 assert(arg_action < _ACTION_MAX);
4624
4625 return table[arg_action];
4626}
4627
f1c5860b 4628static int talk_upstart(void) {
d55ae9e6
LP		 4629 DBusMessage *m = NULL, *reply = NULL;
4630 DBusError error;
4631 int previous, rl, r;
4632 char
4633 env1_buf[] = "RUNLEVEL=X",
4634 env2_buf[] = "PREVLEVEL=X";
4635 char *env1 = env1_buf, *env2 = env2_buf;
4636 const char *emit = "runlevel";
4637 dbus_bool_t b_false = FALSE;
4638 DBusMessageIter iter, sub;
f1c5860b 4639 DBusConnection *bus;
d55ae9e6
LP		 4640
4641 dbus_error_init(&error);
4642
4643 if (!(rl = action_to_runlevel()))
4644 return 0;
4645
4646 if (utmp_get_runlevel(&previous, NULL) < 0)
4647 previous = 'N';
4648
b574246b 4649 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4650 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4651 r = 0;
4652 goto finish;
4653 }
4654
4cf5d675 4655 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
f1c5860b
LP		 4656 r = -EIO;
4657 goto finish;
4658 }
4659
4660 if ((r = bus_check_peercred(bus)) < 0) {
4661 log_error("Failed to verify owner of bus.");
4662 goto finish;
4663 }
4664
d55ae9e6
LP		 4665 if (!(m = dbus_message_new_method_call(
4666 "com.ubuntu.Upstart",
4667 "/com/ubuntu/Upstart",
4668 "com.ubuntu.Upstart0_6",
4669 "EmitEvent"))) {
4670
4671 log_error("Could not allocate message.");
f1c5860b
LP		 4672 r = -ENOMEM;
4673 goto finish;
d55ae9e6
LP		 4674 }
4675
4676 dbus_message_iter_init_append(m, &iter);
4677
4678 env1_buf[sizeof(env1_buf)-2] = rl;
4679 env2_buf[sizeof(env2_buf)-2] = previous;
4680
4681 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4682 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4683 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4684 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4685 !dbus_message_iter_close_container(&iter, &sub) ||
4686 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4687 log_error("Could not append arguments to message.");
4688 r = -ENOMEM;
4689 goto finish;
4690 }
4691
4692 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4693
4694 if (error_is_no_service(&error)) {
aabd9b11 4695 r = -EADDRNOTAVAIL;
d55ae9e6
LP		 4696 goto finish;
4697 }
4698
4cf5d675 4699 log_error("Failed to issue method call: %s", bus_error_message(&error));
d55ae9e6
LP		 4700 r = -EIO;
4701 goto finish;
4702 }
4703
aabd9b11 4704 r = 0;
d55ae9e6
LP		 4705
4706finish:
4707 if (m)
4708 dbus_message_unref(m);
4709
4710 if (reply)
4711 dbus_message_unref(reply);
4712
b574246b 4713 if (bus) {
5d452f9c 4714 dbus_connection_flush(bus);
b574246b 4715 dbus_connection_close(bus);
f1c5860b 4716 dbus_connection_unref(bus);
b574246b 4717 }
f1c5860b 4718
d55ae9e6
LP		 4719 dbus_error_free(&error);
4720
4721 return r;
4722}
4723
4724static int talk_initctl(void) {
eb22ac37
LP		 4725 struct init_request request;
4726 int r, fd;
d55ae9e6 4727 char rl;
eb22ac37 4728
d55ae9e6 4729 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4730 return 0;
4731
4732 zero(request);
4733 request.magic = INIT_MAGIC;
4734 request.sleeptime = 0;
4735 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4736 request.runlevel = rl;
4737
4738 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4739
4740 if (errno == ENOENT)
4741 return 0;
eb22ac37 4742
d55ae9e6 4743 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4744 return -errno;
d55ae9e6 4745 }
eb22ac37 4746
d55ae9e6 4747 errno = 0;
eb22ac37
LP		 4748 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4749 close_nointr_nofail(fd);
4750
d55ae9e6
LP		 4751 if (r < 0) {
4752 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 4753 return errno ? -errno : -EIO;
d55ae9e6 4754 }
eb22ac37
LP		 4755
4756 return 1;
e4b61340
LP		 4757}
4758
ee5762e3 4759static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 4760
7e4249b9
LP		 4761 static const struct {
4762 const char* verb;
4763 const enum {
4764 MORE,
4765 LESS,
4766 EQUAL
4767 } argc_cmp;
4768 const int argc;
4769 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4770 } verbs[] = {
ee5762e3
LP		 4771 { "list-units", LESS, 1, list_units },
4772 { "list-jobs", EQUAL, 1, list_jobs },
4773 { "clear-jobs", EQUAL, 1, daemon_reload },
4774 { "load", MORE, 2, load_unit },
4775 { "cancel", MORE, 2, cancel_job },
4776 { "start", MORE, 2, start_unit },
4777 { "stop", MORE, 2, start_unit },
4778 { "reload", MORE, 2, start_unit },
4779 { "restart", MORE, 2, start_unit },
4780 { "try-restart", MORE, 2, start_unit },
4781 { "reload-or-restart", MORE, 2, start_unit },
4782 { "reload-or-try-restart", MORE, 2, start_unit },
4783 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4784 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4785 { "isolate", EQUAL, 2, start_unit },
4786 { "is-active", MORE, 2, check_unit },
4787 { "check", MORE, 2, check_unit },
4788 { "show", MORE, 1, show },
4789 { "status", MORE, 2, show },
4790 { "monitor", EQUAL, 1, monitor },
4791 { "dump", EQUAL, 1, dump },
4792 { "dot", EQUAL, 1, dot },
4793 { "snapshot", LESS, 2, snapshot },
4794 { "delete", MORE, 2, delete_snapshot },
4795 { "daemon-reload", EQUAL, 1, daemon_reload },
4796 { "daemon-reexec", EQUAL, 1, daemon_reload },
ee5762e3
LP		 4797 { "show-environment", EQUAL, 1, show_enviroment },
4798 { "set-environment", MORE, 2, set_environment },
4799 { "unset-environment", MORE, 2, set_environment },
4800 { "halt", EQUAL, 1, start_special },
4801 { "poweroff", EQUAL, 1, start_special },
4802 { "reboot", EQUAL, 1, start_special },
20b09ca7 4803 { "kexec", EQUAL, 1, start_special },
ee5762e3
LP		 4804 { "default", EQUAL, 1, start_special },
4805 { "rescue", EQUAL, 1, start_special },
4806 { "emergency", EQUAL, 1, start_special },
20b09ca7 4807 { "exit", EQUAL, 1, start_special },
fdf20a31 4808 { "reset-failed", MORE, 1, reset_failed },
ee5762e3
LP		 4809 { "enable", MORE, 2, enable_unit },
4810 { "disable", MORE, 2, enable_unit },
4811 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 4812 };
4813
e4b61340 4814 int left;
7e4249b9 4815 unsigned i;
7e4249b9 4816
e4b61340
LP		 4817 assert(argc >= 0);
4818 assert(argv);
ee5762e3 4819 assert(error);
7e4249b9
LP		 4820
4821 left = argc - optind;
4822
4823 if (left <= 0)
4824 /* Special rule: no arguments means "list-units" */
4825 i = 0;
4826 else {
0183528f
LP		 4827 if (streq(argv[optind], "help")) {
4828 systemctl_help();
4829 return 0;
4830 }
4831
7e4249b9
LP		 4832 for (i = 0; i < ELEMENTSOF(verbs); i++)
4833 if (streq(argv[optind], verbs[i].verb))
4834 break;
4835
4836 if (i >= ELEMENTSOF(verbs)) {
4837 log_error("Unknown operation %s", argv[optind]);
e4b61340 4838 return -EINVAL;
7e4249b9
LP		 4839 }
4840 }
4841
4842 switch (verbs[i].argc_cmp) {
4843
4844 case EQUAL:
4845 if (left != verbs[i].argc) {
4846 log_error("Invalid number of arguments.");
e4b61340 4847 return -EINVAL;
7e4249b9
LP		 4848 }
4849
4850 break;
4851
4852 case MORE:
4853 if (left < verbs[i].argc) {
4854 log_error("Too few arguments.");
e4b61340 4855 return -EINVAL;
7e4249b9
LP		 4856 }
4857
4858 break;
4859
4860 case LESS:
4861 if (left > verbs[i].argc) {
4862 log_error("Too many arguments.");
e4b61340 4863 return -EINVAL;
7e4249b9
LP		 4864 }
4865
4866 break;
4867
4868 default:
4869 assert_not_reached("Unknown comparison operator.");
4870 }
4871
ee5762e3
LP		 4872 /* Require a bus connection for all operations but
4873 * enable/disable */
4874 if (!streq(verbs[i].verb, "enable") &&
4875 !streq(verbs[i].verb, "disable") &&
4876 !bus) {
4877 log_error("Failed to get D-Bus connection: %s", error->message);
4878 return -EIO;
4879 }
4880
e4b61340
LP		 4881 return verbs[i].dispatch(bus, argv + optind, left);
4882}
4883
9be9828c 4884static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
f6144808
LP		 4885 int fd = -1;
4886 struct msghdr msghdr;
4887 struct iovec iovec;
4888 union sockaddr_union sockaddr;
f6144808
LP		 4889 struct shutdownd_command c;
4890
4891 zero(c);
4892 c.elapse = t;
4893 c.mode = mode;
9be9828c
LP		 4894 c.warn_wall = warn;
4895
4896 if (message)
4897 strncpy(c.wall_message, message, sizeof(c.wall_message));
f6144808
LP		 4898
4899 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
4900 return -errno;
4901
4902 zero(sockaddr);
4903 sockaddr.sa.sa_family = AF_UNIX;
4904 sockaddr.un.sun_path[0] = 0;
4905 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
4906
4907 zero(iovec);
4908 iovec.iov_base = (char*) &c;
4909 iovec.iov_len = sizeof(c);
4910
f6144808
LP		 4911 zero(msghdr);
4912 msghdr.msg_name = &sockaddr;
0e098b15 4913 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
f6144808
LP		 4914
4915 msghdr.msg_iov = &iovec;
4916 msghdr.msg_iovlen = 1;
f6144808
LP		 4917
4918 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
4919 close_nointr_nofail(fd);
4920 return -errno;
4921 }
4922
4923 close_nointr_nofail(fd);
4924 return 0;
4925}
4926
e4b61340 4927static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4928
4929 if (bus) {
4930 /* First, try systemd via D-Bus. */
e364ad06 4931 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 4932 return 0;
4933 }
4934
4935 /* Nothing else worked, so let's try signals */
4936 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4937
4938 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4939 log_error("kill() failed: %m");
4940 return -errno;
4941 }
4942
4943 return 0;
4944}
4945
4946static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4947
4948 if (bus) {
4949 /* First, try systemd via D-Bus. */
706900b7 4950 if (start_unit(bus, NULL, 0) >= 0)
983d9c90 4951 goto done;
e4b61340
LP		 4952 }
4953
ec7f7f20
LP		 4954 /* Hmm, talking to systemd via D-Bus didn't work. Then
4955 * let's try to talk to Upstart via D-Bus. */
e364ad06 4956 if (talk_upstart() > 0)
ec7f7f20
LP		 4957 goto done;
4958
e4b61340
LP		 4959 /* Nothing else worked, so let's try
4960 * /dev/initctl */
fbc43921 4961 if (talk_initctl() > 0)
983d9c90 4962 goto done;
d55ae9e6
LP		 4963
4964 log_error("Failed to talk to init daemon.");
4965 return -EIO;
983d9c90
LP		 4966
4967done:
4968 warn_wall(arg_action);
4969 return 0;
e4b61340
LP		 4970}
4971
4972static int halt_main(DBusConnection *bus) {
4973 int r;
4974
bc8c2f5c 4975 if (geteuid() != 0) {
cc8a7a61 4976 log_error("Must be root.");
bc8c2f5c
LP		 4977 return -EPERM;
4978 }
4979
f6144808 4980 if (arg_when > 0) {
9be9828c 4981 char *m;
08e4b1c5 4982 char date[FORMAT_TIMESTAMP_MAX];
9be9828c
LP		 4983
4984 m = strv_join(arg_wall, " ");
4985 r = send_shutdownd(arg_when,
4986 arg_action == ACTION_HALT ? 'H' :
4987 arg_action == ACTION_POWEROFF ? 'P' :
4988 'r',
4989 !arg_no_wall,
4990 m);
4991 free(m);
4992
4993 if (r < 0)
f6144808 4994 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
08e4b1c5
LP		 4995 else {
4996 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
4997 format_timestamp(date, sizeof(date), arg_when));
f6144808 4998 return 0;
08e4b1c5 4999 }
f6144808
LP		 5000 }
5001
d47b555b 5002 if (!arg_dry && !arg_immediate)
e4b61340
LP		 5003 return start_with_fallback(bus);
5004
d90e1a30
LP		 5005 if (!arg_no_wtmp) {
5006 if (sd_booted() > 0)
5007 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5008 else if ((r = utmp_put_shutdown(0)) < 0)
e4b61340 5009 log_warning("Failed to write utmp record: %s", strerror(-r));
d90e1a30 5010 }
e4b61340
LP		 5011
5012 if (!arg_no_sync)
5013 sync();
5014
5015 if (arg_dry)
5016 return 0;
5017
5018 /* Make sure C-A-D is handled by the kernel from this
5019 * point on... */
5020 reboot(RB_ENABLE_CAD);
5021
5022 switch (arg_action) {
5023
5024 case ACTION_HALT:
3059b1c1 5025 log_info("Halting.");
e4b61340
LP		 5026 reboot(RB_HALT_SYSTEM);
5027 break;
5028
5029 case ACTION_POWEROFF:
3059b1c1 5030 log_info("Powering off.");
e4b61340
LP		 5031 reboot(RB_POWER_OFF);
5032 break;
5033
5034 case ACTION_REBOOT:
3059b1c1 5035 log_info("Rebooting.");
e4b61340
LP		 5036 reboot(RB_AUTOBOOT);
5037 break;
5038
5039 default:
5040 assert_not_reached("Unknown halt action.");
5041 }
5042
5043 /* We should never reach this. */
5044 return -ENOSYS;
5045}
5046
5047static int runlevel_main(void) {
5048 int r, runlevel, previous;
5049
5050 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 5051 printf("unknown\n");
e4b61340
LP		 5052 return r;
5053 }
5054
5055 printf("%c %c\n",
5056 previous <= 0 ? 'N' : previous,
5057 runlevel <= 0 ? 'N' : runlevel);
5058
5059 return 0;
5060}
5061
5062int main(int argc, char*argv[]) {
22f4096c 5063 int r, retval = EXIT_FAILURE;
e4b61340
LP		 5064 DBusConnection *bus = NULL;
5065 DBusError error;
5066
5067 dbus_error_init(&error);
5068
5069 log_parse_environment();
2396fb04 5070 log_open();
e4b61340
LP		 5071
5072 if ((r = parse_argv(argc, argv)) < 0)
5073 goto finish;
5074 else if (r == 0) {
22f4096c 5075 retval = EXIT_SUCCESS;
7e4249b9
LP		 5076 goto finish;
5077 }
5078
e4b61340
LP		 5079 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5080 * let's shortcut this */
5081 if (arg_action == ACTION_RUNLEVEL) {
22f4096c
LP		 5082 r = runlevel_main();
5083 retval = r < 0 ? EXIT_FAILURE : r;
e4b61340
LP		 5084 goto finish;
5085 }
5086
f4579ce7 5087 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 5088
5089 switch (arg_action) {
5090
22f4096c
LP		 5091 case ACTION_SYSTEMCTL:
5092 r = systemctl_main(bus, argc, argv, &error);
e4b61340 5093 break;
e4b61340
LP		 5094
5095 case ACTION_HALT:
5096 case ACTION_POWEROFF:
5097 case ACTION_REBOOT:
22f4096c 5098 r = halt_main(bus);
e4b61340
LP		 5099 break;
5100
e4b61340
LP		 5101 case ACTION_RUNLEVEL2:
5102 case ACTION_RUNLEVEL3:
5103 case ACTION_RUNLEVEL4:
5104 case ACTION_RUNLEVEL5:
5105 case ACTION_RESCUE:
514f4ef5 5106 case ACTION_EMERGENCY:
eb22ac37 5107 case ACTION_DEFAULT:
22f4096c 5108 r = start_with_fallback(bus);
e4b61340 5109 break;
7e4249b9 5110
e4b61340
LP		 5111 case ACTION_RELOAD:
5112 case ACTION_REEXEC:
22f4096c 5113 r = reload_with_fallback(bus);
e4b61340
LP		 5114 break;
5115
f6144808 5116 case ACTION_CANCEL_SHUTDOWN:
22f4096c 5117 r = send_shutdownd(0, 0, false, NULL);
f6144808
LP		 5118 break;
5119
eb22ac37
LP		 5120 case ACTION_INVALID:
5121 case ACTION_RUNLEVEL:
e4b61340
LP		 5122 default:
5123 assert_not_reached("Unknown action");
5124 }
7e4249b9 5125
22f4096c
LP		 5126 retval = r < 0 ? EXIT_FAILURE : r;
5127
7e4249b9
LP		 5128finish:
5129
b574246b 5130 if (bus) {
5d452f9c 5131 dbus_connection_flush(bus);
b574246b 5132 dbus_connection_close(bus);
7e4249b9 5133 dbus_connection_unref(bus);
b574246b 5134 }
7e4249b9 5135
e4b61340
LP		 5136 dbus_error_free(&error);
5137
7e4249b9
LP		 5138 dbus_shutdown();
5139
ea4a240d
LP		 5140 strv_free(arg_property);
5141
7e4249b9
LP		 5142 return retval;
5143}
Unnamed repository; edit this file 'description' to name the repository.