]> git.ipfire.org Git - thirdparty/systemd.git/blame - src/systemctl.c
projects / thirdparty / systemd.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
manager: add missing second part of s/maintenance/failed/
[thirdparty/systemd.git] / src / systemctl.c
CommitLineData
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>
7e4249b9
LP		 34
35#include <dbus/dbus.h>
36
37#include "log.h"
38#include "util.h"
39#include "macro.h"
40#include "set.h"
e4b61340 41#include "utmp-wtmp.h"
514f4ef5 42#include "special.h"
eb22ac37 43#include "initreq.h"
e4a9373f 44#include "strv.h"
9a1ac7b9 45#include "dbus-common.h"
ab35fb1b 46#include "cgroup-show.h"
c6c18be3 47#include "cgroup-util.h"
582a507f 48#include "list.h"
ee5762e3
LP		 49#include "path-lookup.h"
50#include "conf-parser.h"
51#include "sd-daemon.h"
f6144808 52#include "shutdownd.h"
d06dacd0 53#include "exit-status.h"
7e4249b9
LP		 54
55static const char *arg_type = NULL;
ea4a240d 56static char **arg_property = NULL;
7e4249b9 57static bool arg_all = false;
90d473a1 58static bool arg_fail = false;
7e4249b9 59static bool arg_session = false;
ee5762e3 60static bool arg_global = false;
e4b61340 61static bool arg_immediate = false;
ee5762e3 62static bool arg_no_block = false;
e4b61340
LP		 63static bool arg_no_wtmp = false;
64static bool arg_no_sync = false;
514f4ef5 65static bool arg_no_wall = false;
ee5762e3 66static bool arg_no_reload = false;
e4b61340 67static bool arg_dry = false;
0183528f 68static bool arg_quiet = false;
ee5762e3
LP		 69static bool arg_full = false;
70static bool arg_force = false;
71static bool arg_defaults = false;
f1e36d67
LP		 72static bool arg_sysv_compat = false; /* this is undocumented, and
73 * exists simply to make
74 * implementation of SysV
75 * compatible shell glue
76 * easier */
e4b61340 77static char **arg_wall = NULL;
f6144808 78static usec_t arg_when = 0;
4445a875 79static enum action {
e4b61340
LP		 80 ACTION_INVALID,
81 ACTION_SYSTEMCTL,
82 ACTION_HALT,
83 ACTION_POWEROFF,
84 ACTION_REBOOT,
e4b61340
LP		 85 ACTION_RUNLEVEL2,
86 ACTION_RUNLEVEL3,
87 ACTION_RUNLEVEL4,
88 ACTION_RUNLEVEL5,
89 ACTION_RESCUE,
514f4ef5
LP		 90 ACTION_EMERGENCY,
91 ACTION_DEFAULT,
e4b61340
LP		 92 ACTION_RELOAD,
93 ACTION_REEXEC,
94 ACTION_RUNLEVEL,
f6144808 95 ACTION_CANCEL_SHUTDOWN,
e4b61340
LP		 96 _ACTION_MAX
97} arg_action = ACTION_SYSTEMCTL;
4445a875
LP		 98static enum dot {
99 DOT_ALL,
100 DOT_ORDER,
101 DOT_REQUIRE
102} arg_dot = DOT_ALL;
e4b61340 103
f4579ce7
LP		 104static bool private_bus = false;
105
ee5762e3
LP		 106static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
107
2ee68f72 108static bool on_tty(void) {
2cc59dbf
LP		 109 static int t = -1;
110
111 if (_unlikely_(t < 0))
112 t = isatty(STDOUT_FILENO) > 0;
113
2ee68f72
LP		 114 return t;
115}
116
117static const char *ansi_highlight(bool b) {
118
119 if (!on_tty())
2cc59dbf
LP		 120 return "";
121
122 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
123}
124
2ee68f72
LP		 125static const char *ansi_highlight_green(bool b) {
126
127 if (!on_tty())
128 return "";
129
130 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
131}
132
e4b61340
LP		 133static bool error_is_no_service(DBusError *error) {
134
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
LP		 148
149static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
150
514f4ef5
LP		 151 assert(iter);
152 assert(data);
153
7e4249b9
LP		 154 if (dbus_message_iter_get_arg_type(iter) != type)
155 return -EIO;
156
157 dbus_message_iter_get_basic(iter, data);
158
159 if (!dbus_message_iter_next(iter) != !next)
160 return -EIO;
161
162 return 0;
163}
164
514f4ef5 165static void warn_wall(enum action action) {
ef2f1067 166 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 167 [ACTION_HALT] = "The system is going down for system halt NOW!",
168 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
169 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
170 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
171 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 172 };
173
514f4ef5
LP		 174 if (arg_no_wall)
175 return;
176
e4a9373f
LP		 177 if (arg_wall) {
178 char *p;
179
180 if (!(p = strv_join(arg_wall, " "))) {
181 log_error("Failed to join strings.");
182 return;
183 }
184
185 if (*p) {
186 utmp_wall(p);
187 free(p);
188 return;
189 }
190
191 free(p);
192 }
193
514f4ef5 194 if (!table[action])
ef2f1067
LP		 195 return;
196
514f4ef5 197 utmp_wall(table[action]);
ef2f1067
LP		 198}
199
36c32ba2
LP		 200struct unit_info {
201 const char *id;
202 const char *description;
203 const char *load_state;
204 const char *active_state;
205 const char *sub_state;
206 const char *following;
207 const char *unit_path;
208 uint32_t job_id;
209 const char *job_type;
210 const char *job_path;
211};
212
213static int compare_unit_info(const void *a, const void *b) {
214 const char *d1, *d2;
215 const struct unit_info *u = a, *v = b;
216
217 d1 = strrchr(u->id, '.');
218 d2 = strrchr(v->id, '.');
219
220 if (d1 && d2) {
221 int r;
222
a2a3a5b9 223 if ((r = strcasecmp(d1, d2)) != 0)
36c32ba2
LP		 224 return r;
225 }
226
a2a3a5b9 227 return strcasecmp(u->id, v->id);
36c32ba2
LP		 228}
229
7e4249b9
LP		 230static int list_units(DBusConnection *bus, char **args, unsigned n) {
231 DBusMessage *m = NULL, *reply = NULL;
232 DBusError error;
233 int r;
234 DBusMessageIter iter, sub, sub2;
36c32ba2
LP		 235 unsigned c = 0, k, n_units = 0;
236 struct unit_info *unit_infos = NULL;
7e4249b9
LP		 237
238 dbus_error_init(&error);
239
514f4ef5
LP		 240 assert(bus);
241
7e4249b9
LP		 242 if (!(m = dbus_message_new_method_call(
243 "org.freedesktop.systemd1",
244 "/org/freedesktop/systemd1",
245 "org.freedesktop.systemd1.Manager",
246 "ListUnits"))) {
247 log_error("Could not allocate message.");
248 return -ENOMEM;
249 }
250
251 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 252 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 253 r = -EIO;
254 goto finish;
255 }
256
257 if (!dbus_message_iter_init(reply, &iter) ||
258 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
259 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
260 log_error("Failed to parse reply.");
261 r = -EIO;
262 goto finish;
263 }
264
265 dbus_message_iter_recurse(&iter, &sub);
266
7e4249b9 267 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
36c32ba2 268 struct unit_info *u;
7e4249b9
LP		 269
270 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
271 log_error("Failed to parse reply.");
272 r = -EIO;
273 goto finish;
274 }
275
36c32ba2
LP		 276 if (c >= n_units) {
277 struct unit_info *w;
278
279 n_units = MAX(2*c, 16);
280 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
281
282 if (!w) {
283 log_error("Failed to allocate unit array.");
284 r = -ENOMEM;
285 goto finish;
286 }
287
288 unit_infos = w;
289 }
290
291 u = unit_infos+c;
292
7e4249b9
LP		 293 dbus_message_iter_recurse(&sub, &sub2);
294
36c32ba2
LP		 295 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
296 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
297 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
298 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
299 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
300 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
301 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
302 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
303 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
304 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
7e4249b9
LP		 305 log_error("Failed to parse reply.");
306 r = -EIO;
307 goto finish;
308 }
309
36c32ba2
LP		 310 dbus_message_iter_next(&sub);
311 c++;
312 }
313
314 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
315
316 if (isatty(STDOUT_FILENO))
317 printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION");
318
319 for (k = 0; k < c; k++) {
320 const char *dot;
321 struct unit_info *u = unit_infos+k;
322
323 if ((!arg_type || ((dot = strrchr(u->id, '.')) &&
7e4249b9 324 streq(dot+1, arg_type))) &&
36c32ba2 325 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0)) {
8fe914ec 326 char *e;
7e4249b9 327 int a = 0, b = 0;
2ee68f72 328 const char *on, *off;
7e4249b9 329
fdf20a31 330 if (streq(u->active_state, "failed")) {
2ee68f72
LP		 331 on = ansi_highlight(true);
332 off = ansi_highlight(false);
333 } else
334 on = off = "";
e0376b17 335
36c32ba2
LP		 336 e = arg_full ? NULL : ellipsize(u->id, 45, 33);
337 printf("%-45s %-6s %s%-12s %-12s%s%n", e ? e : u->id, u->load_state, on, u->active_state, u->sub_state, off, &a);
8fe914ec 338 free(e);
7e4249b9 339
2ee68f72
LP		 340 a -= strlen(on) + strlen(off);
341
36c32ba2
LP		 342 if (u->job_id != 0)
343 printf(" => %-12s%n", u->job_type, &b);
7e4249b9 344 else
e0376b17 345 b = 1 + 15;
7e4249b9
LP		 346
347 if (a + b + 2 < columns()) {
36c32ba2 348 if (u->job_id == 0)
7e4249b9
LP		 349 printf(" ");
350
36c32ba2 351 printf(" %.*s", columns() - a - b - 2, u->description);
7e4249b9
LP		 352 }
353
354 fputs("\n", stdout);
7e4249b9 355 }
7e4249b9
LP		 356 }
357
d0642824 358 if (isatty(STDOUT_FILENO)) {
0ff3dea7 359
85ad5b18
LP		 360 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
361 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
362 "SUB = The low-level unit activation state, values depend on unit type.\n"
363 "JOB = Pending job for the unit.\n");
d0642824
LP		 364
365 if (arg_all)
36c32ba2 366 printf("\n%u units listed.\n", c);
d0642824 367 else
36c32ba2 368 printf("\n%u units listed. Pass --all to see inactive units, too.\n", c);
d0642824 369 }
4445a875
LP		 370
371 r = 0;
372
373finish:
374 if (m)
375 dbus_message_unref(m);
376
377 if (reply)
378 dbus_message_unref(reply);
379
36c32ba2
LP		 380 free(unit_infos);
381
4445a875
LP		 382 dbus_error_free(&error);
383
384 return r;
385}
386
387static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
388 static const char * const colors[] = {
389 "Requires", "[color=\"black\"]",
390 "RequiresOverridable", "[color=\"black\"]",
391 "Requisite", "[color=\"darkblue\"]",
392 "RequisiteOverridable", "[color=\"darkblue\"]",
393 "Wants", "[color=\"darkgrey\"]",
394 "Conflicts", "[color=\"red\"]",
69dd2852 395 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 396 "After", "[color=\"green\"]"
397 };
398
399 const char *c = NULL;
400 unsigned i;
401
402 assert(name);
403 assert(prop);
404 assert(iter);
405
406 for (i = 0; i < ELEMENTSOF(colors); i += 2)
407 if (streq(colors[i], prop)) {
408 c = colors[i+1];
409 break;
410 }
411
412 if (!c)
413 return 0;
414
415 if (arg_dot != DOT_ALL)
416 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
417 return 0;
418
419 switch (dbus_message_iter_get_arg_type(iter)) {
420
421 case DBUS_TYPE_ARRAY:
422
423 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
424 DBusMessageIter sub;
425
426 dbus_message_iter_recurse(iter, &sub);
427
428 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
429 const char *s;
430
431 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
432 dbus_message_iter_get_basic(&sub, &s);
433 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
434
435 dbus_message_iter_next(&sub);
436 }
437
438 return 0;
439 }
440 }
441
442 return 0;
443}
444
445static int dot_one(DBusConnection *bus, const char *name, const char *path) {
446 DBusMessage *m = NULL, *reply = NULL;
447 const char *interface = "org.freedesktop.systemd1.Unit";
448 int r;
449 DBusError error;
450 DBusMessageIter iter, sub, sub2, sub3;
451
452 assert(bus);
453 assert(path);
454
455 dbus_error_init(&error);
456
457 if (!(m = dbus_message_new_method_call(
458 "org.freedesktop.systemd1",
459 path,
460 "org.freedesktop.DBus.Properties",
461 "GetAll"))) {
462 log_error("Could not allocate message.");
463 r = -ENOMEM;
464 goto finish;
465 }
466
467 if (!dbus_message_append_args(m,
468 DBUS_TYPE_STRING, &interface,
469 DBUS_TYPE_INVALID)) {
470 log_error("Could not append arguments to message.");
471 r = -ENOMEM;
472 goto finish;
473 }
474
475 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 476 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 477 r = -EIO;
478 goto finish;
479 }
480
481 if (!dbus_message_iter_init(reply, &iter) ||
482 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
483 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
484 log_error("Failed to parse reply.");
485 r = -EIO;
486 goto finish;
487 }
488
489 dbus_message_iter_recurse(&iter, &sub);
490
491 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
492 const char *prop;
493
494 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
495 log_error("Failed to parse reply.");
496 r = -EIO;
497 goto finish;
498 }
499
500 dbus_message_iter_recurse(&sub, &sub2);
501
502 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
503 log_error("Failed to parse reply.");
504 r = -EIO;
505 goto finish;
506 }
507
508 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
509 log_error("Failed to parse reply.");
510 r = -EIO;
511 goto finish;
512 }
513
514 dbus_message_iter_recurse(&sub2, &sub3);
515
516 if (dot_one_property(name, prop, &sub3)) {
517 log_error("Failed to parse reply.");
518 r = -EIO;
519 goto finish;
520 }
521
522 dbus_message_iter_next(&sub);
523 }
524
e364ad06
LP		 525 r = 0;
526
4445a875
LP		 527finish:
528 if (m)
529 dbus_message_unref(m);
530
531 if (reply)
532 dbus_message_unref(reply);
533
534 dbus_error_free(&error);
535
536 return r;
537}
538
539static int dot(DBusConnection *bus, char **args, unsigned n) {
540 DBusMessage *m = NULL, *reply = NULL;
541 DBusError error;
542 int r;
543 DBusMessageIter iter, sub, sub2;
544
545 dbus_error_init(&error);
546
547 assert(bus);
548
549 if (!(m = dbus_message_new_method_call(
550 "org.freedesktop.systemd1",
551 "/org/freedesktop/systemd1",
552 "org.freedesktop.systemd1.Manager",
553 "ListUnits"))) {
554 log_error("Could not allocate message.");
555 return -ENOMEM;
556 }
557
558 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 559 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 560 r = -EIO;
561 goto finish;
562 }
563
564 if (!dbus_message_iter_init(reply, &iter) ||
565 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
566 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
567 log_error("Failed to parse reply.");
568 r = -EIO;
569 goto finish;
570 }
571
572 printf("digraph systemd {\n");
573
574 dbus_message_iter_recurse(&iter, &sub);
575 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 576 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 577
578 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
579 log_error("Failed to parse reply.");
580 r = -EIO;
581 goto finish;
582 }
583
584 dbus_message_iter_recurse(&sub, &sub2);
585
586 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
587 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
588 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
589 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
590 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 591 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 592 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
593 log_error("Failed to parse reply.");
594 r = -EIO;
595 goto finish;
596 }
597
598 if ((r = dot_one(bus, id, unit_path)) < 0)
599 goto finish;
600
601 /* printf("\t\"%s\";\n", id); */
602 dbus_message_iter_next(&sub);
603 }
604
605 printf("}\n");
606
607 log_info(" Color legend: black = Requires\n"
608 " dark blue = Requisite\n"
609 " dark grey = Wants\n"
610 " red = Conflicts\n"
611 " green = After\n");
612
613 if (isatty(fileno(stdout)))
614 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
615 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 616
617 r = 0;
618
619finish:
620 if (m)
621 dbus_message_unref(m);
622
623 if (reply)
624 dbus_message_unref(reply);
625
626 dbus_error_free(&error);
627
628 return r;
629}
630
631static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
632 DBusMessage *m = NULL, *reply = NULL;
633 DBusError error;
634 int r;
635 DBusMessageIter iter, sub, sub2;
636 unsigned k = 0;
637
638 dbus_error_init(&error);
639
514f4ef5
LP		 640 assert(bus);
641
7e4249b9
LP		 642 if (!(m = dbus_message_new_method_call(
643 "org.freedesktop.systemd1",
644 "/org/freedesktop/systemd1",
645 "org.freedesktop.systemd1.Manager",
646 "ListJobs"))) {
647 log_error("Could not allocate message.");
648 return -ENOMEM;
649 }
650
651 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 652 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 653 r = -EIO;
654 goto finish;
655 }
656
657 if (!dbus_message_iter_init(reply, &iter) ||
658 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
659 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
660 log_error("Failed to parse reply.");
661 r = -EIO;
662 goto finish;
663 }
664
665 dbus_message_iter_recurse(&iter, &sub);
666
667 printf("%4s %-45s %-17s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
668
669 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
670 const char *name, *type, *state, *job_path, *unit_path;
671 uint32_t id;
8fe914ec 672 char *e;
7e4249b9
LP		 673
674 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
675 log_error("Failed to parse reply.");
676 r = -EIO;
677 goto finish;
678 }
679
680 dbus_message_iter_recurse(&sub, &sub2);
681
682 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
683 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
684 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
685 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
686 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
687 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
688 log_error("Failed to parse reply.");
689 r = -EIO;
690 goto finish;
691 }
692
8fe914ec
LP		 693 e = arg_full ? NULL : ellipsize(name, 45, 33);
694 printf("%4u %-45s %-17s %-7s\n", id, e ? e : name, type, state);
695 free(e);
696
7e4249b9
LP		 697 k++;
698
699 dbus_message_iter_next(&sub);
700 }
701
702 printf("\n%u jobs listed.\n", k);
703 r = 0;
704
705finish:
706 if (m)
707 dbus_message_unref(m);
708
709 if (reply)
710 dbus_message_unref(reply);
711
712 dbus_error_free(&error);
713
714 return r;
715}
716
717static int load_unit(DBusConnection *bus, char **args, unsigned n) {
718 DBusMessage *m = NULL, *reply = NULL;
719 DBusError error;
720 int r;
721 unsigned i;
722
723 dbus_error_init(&error);
724
514f4ef5
LP		 725 assert(bus);
726 assert(args);
727
7e4249b9
LP		 728 for (i = 1; i < n; i++) {
729
730 if (!(m = dbus_message_new_method_call(
731 "org.freedesktop.systemd1",
732 "/org/freedesktop/systemd1",
733 "org.freedesktop.systemd1.Manager",
734 "LoadUnit"))) {
735 log_error("Could not allocate message.");
736 r = -ENOMEM;
737 goto finish;
738 }
739
740 if (!dbus_message_append_args(m,
741 DBUS_TYPE_STRING, &args[i],
742 DBUS_TYPE_INVALID)) {
743 log_error("Could not append arguments to message.");
744 r = -ENOMEM;
745 goto finish;
746 }
747
748 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 749 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 750 r = -EIO;
751 goto finish;
752 }
753
754 dbus_message_unref(m);
755 dbus_message_unref(reply);
756
757 m = reply = NULL;
758 }
759
760 r = 0;
761
762finish:
763 if (m)
764 dbus_message_unref(m);
765
766 if (reply)
767 dbus_message_unref(reply);
768
769 dbus_error_free(&error);
770
771 return r;
772}
773
774static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
775 DBusMessage *m = NULL, *reply = NULL;
776 DBusError error;
777 int r;
778 unsigned i;
779
780 dbus_error_init(&error);
781
514f4ef5
LP		 782 assert(bus);
783 assert(args);
784
ee5762e3
LP		 785 if (n <= 1)
786 return daemon_reload(bus, args, n);
787
7e4249b9
LP		 788 for (i = 1; i < n; i++) {
789 unsigned id;
790 const char *path;
791
792 if (!(m = dbus_message_new_method_call(
793 "org.freedesktop.systemd1",
794 "/org/freedesktop/systemd1",
795 "org.freedesktop.systemd1.Manager",
796 "GetJob"))) {
797 log_error("Could not allocate message.");
798 r = -ENOMEM;
799 goto finish;
800 }
801
802 if ((r = safe_atou(args[i], &id)) < 0) {
803 log_error("Failed to parse job id: %s", strerror(-r));
804 goto finish;
805 }
806
807 assert_cc(sizeof(uint32_t) == sizeof(id));
808 if (!dbus_message_append_args(m,
809 DBUS_TYPE_UINT32, &id,
810 DBUS_TYPE_INVALID)) {
811 log_error("Could not append arguments to message.");
812 r = -ENOMEM;
813 goto finish;
814 }
815
816 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 817 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 818 r = -EIO;
819 goto finish;
820 }
821
822 if (!dbus_message_get_args(reply, &error,
823 DBUS_TYPE_OBJECT_PATH, &path,
824 DBUS_TYPE_INVALID)) {
4cf5d675 825 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 826 r = -EIO;
827 goto finish;
828 }
829
830 dbus_message_unref(m);
831 if (!(m = dbus_message_new_method_call(
832 "org.freedesktop.systemd1",
833 path,
834 "org.freedesktop.systemd1.Job",
835 "Cancel"))) {
836 log_error("Could not allocate message.");
837 r = -ENOMEM;
838 goto finish;
839 }
840
841 dbus_message_unref(reply);
842 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 843 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 844 r = -EIO;
845 goto finish;
846 }
847
848 dbus_message_unref(m);
849 dbus_message_unref(reply);
850 m = reply = NULL;
851 }
852
853 r = 0;
854
855finish:
856 if (m)
857 dbus_message_unref(m);
858
859 if (reply)
860 dbus_message_unref(reply);
861
862 dbus_error_free(&error);
863
864 return r;
865}
866
ee5762e3 867static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
e364ad06 868 DBusMessage *m = NULL, *reply = NULL;
45fb0699
LP		 869 dbus_bool_t b = FALSE;
870 DBusMessageIter iter, sub;
871 const char
872 *interface = "org.freedesktop.systemd1.Unit",
873 *property = "NeedDaemonReload",
874 *path;
875
876 /* We ignore all errors here, since this is used to show a warning only */
877
878 if (!(m = dbus_message_new_method_call(
879 "org.freedesktop.systemd1",
880 "/org/freedesktop/systemd1",
881 "org.freedesktop.systemd1.Manager",
882 "GetUnit")))
883 goto finish;
884
885 if (!dbus_message_append_args(m,
886 DBUS_TYPE_STRING, &unit,
887 DBUS_TYPE_INVALID))
888 goto finish;
889
890 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
891 goto finish;
892
893 if (!dbus_message_get_args(reply, NULL,
894 DBUS_TYPE_OBJECT_PATH, &path,
895 DBUS_TYPE_INVALID))
896 goto finish;
897
898 dbus_message_unref(m);
899 if (!(m = dbus_message_new_method_call(
900 "org.freedesktop.systemd1",
901 path,
902 "org.freedesktop.DBus.Properties",
903 "Get")))
904 goto finish;
905
906 if (!dbus_message_append_args(m,
907 DBUS_TYPE_STRING, &interface,
908 DBUS_TYPE_STRING, &property,
909 DBUS_TYPE_INVALID)) {
910 goto finish;
911 }
912
913 dbus_message_unref(reply);
914 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
915 goto finish;
916
917 if (!dbus_message_iter_init(reply, &iter) ||
918 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
919 goto finish;
920
921 dbus_message_iter_recurse(&iter, &sub);
922
923 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
924 goto finish;
925
926 dbus_message_iter_get_basic(&sub, &b);
927
928finish:
929 if (m)
930 dbus_message_unref(m);
931
932 if (reply)
933 dbus_message_unref(reply);
934
935 return b;
936}
937
5e374895
LP		 938typedef struct WaitData {
939 Set *set;
940 bool failed;
941} WaitData;
942
7e4249b9
LP		 943static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
944 DBusError error;
5e374895 945 WaitData *d = data;
7e4249b9
LP		 946
947 assert(connection);
948 assert(message);
5e374895 949 assert(d);
7e4249b9
LP		 950
951 dbus_error_init(&error);
952
54165a39
LP		 953 log_debug("Got D-Bus request: %s.%s() on %s",
954 dbus_message_get_interface(message),
955 dbus_message_get_member(message),
956 dbus_message_get_path(message));
7e4249b9
LP		 957
958 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
959 log_error("Warning! D-Bus connection terminated.");
960 dbus_connection_close(connection);
961
962 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
963 uint32_t id;
964 const char *path;
5e374895 965 dbus_bool_t success = true;
7e4249b9
LP		 966
967 if (!dbus_message_get_args(message, &error,
968 DBUS_TYPE_UINT32, &id,
969 DBUS_TYPE_OBJECT_PATH, &path,
5e374895 970 DBUS_TYPE_BOOLEAN, &success,
7e4249b9 971 DBUS_TYPE_INVALID))
4cf5d675 972 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 973 else {
974 char *p;
975
5e374895 976 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 977 free(p);
5e374895
LP		 978
979 if (!success)
980 d->failed = true;
7e4249b9
LP		 981 }
982 }
983
984 dbus_error_free(&error);
985 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
986}
987
479ef5d3 988static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 989 DBusError error;
7e4249b9
LP		 990
991 assert(bus);
7e4249b9 992
f4579ce7
LP		 993 if (private_bus)
994 return 0;
995
7e4249b9 996 dbus_error_init(&error);
7e4249b9
LP		 997 dbus_bus_add_match(bus,
998 "type='signal',"
999 "sender='org.freedesktop.systemd1',"
1000 "interface='org.freedesktop.systemd1.Manager',"
1001 "member='JobRemoved',"
1002 "path='/org/freedesktop/systemd1'",
1003 &error);
1004
1005 if (dbus_error_is_set(&error)) {
4cf5d675 1006 log_error("Failed to add match: %s", bus_error_message(&error));
a567261a
LP		 1007 dbus_error_free(&error);
1008 return -EIO;
7e4249b9
LP		 1009 }
1010
479ef5d3 1011 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 1012 return 0;
7e4249b9
LP		 1013}
1014
479ef5d3
LP		 1015static int wait_for_jobs(DBusConnection *bus, Set *s) {
1016 int r;
5e374895 1017 WaitData d;
479ef5d3
LP		 1018
1019 assert(bus);
1020 assert(s);
1021
5e374895
LP		 1022 zero(d);
1023 d.set = s;
1024 d.failed = false;
1025
1026 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 1027 log_error("Failed to add filter.");
1028 r = -ENOMEM;
1029 goto finish;
1030 }
1031
1032 while (!set_isempty(s) &&
1033 dbus_connection_read_write_dispatch(bus, -1))
1034 ;
1035
5e374895
LP		 1036 if (!arg_quiet && d.failed)
1037 log_error("Job failed, see logs for details.");
1038
1039 r = d.failed ? -EIO : 0;
479ef5d3
LP		 1040
1041finish:
1042 /* This is slightly dirty, since we don't undo the filter registration. */
1043
1044 return r;
1045}
1046
e4b61340
LP		 1047static int start_unit_one(
1048 DBusConnection *bus,
1049 const char *method,
1050 const char *name,
1051 const char *mode,
1052 Set *s) {
7e4249b9 1053
7e4249b9
LP		 1054 DBusMessage *m = NULL, *reply = NULL;
1055 DBusError error;
45fb0699 1056 const char *path;
7e4249b9 1057 int r;
7e4249b9 1058
e4b61340
LP		 1059 assert(bus);
1060 assert(method);
1061 assert(name);
1062 assert(mode);
6e905d93 1063 assert(arg_no_block || s);
7e4249b9 1064
e4b61340 1065 dbus_error_init(&error);
479ef5d3 1066
7e4249b9
LP		 1067 if (!(m = dbus_message_new_method_call(
1068 "org.freedesktop.systemd1",
1069 "/org/freedesktop/systemd1",
1070 "org.freedesktop.systemd1.Manager",
e4b61340 1071 method))) {
7e4249b9
LP		 1072 log_error("Could not allocate message.");
1073 r = -ENOMEM;
1074 goto finish;
1075 }
1076
1077 if (!dbus_message_append_args(m,
e4b61340 1078 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 1079 DBUS_TYPE_STRING, &mode,
1080 DBUS_TYPE_INVALID)) {
1081 log_error("Could not append arguments to message.");
1082 r = -ENOMEM;
1083 goto finish;
1084 }
1085
1086 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 1087
1088 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
1089 /* There's always a fallback possible for
1090 * legacy actions. */
1091 r = 0;
1092 goto finish;
1093 }
1094
4cf5d675 1095 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 1096 r = -EIO;
1097 goto finish;
1098 }
1099
45fb0699
LP		 1100 if (!dbus_message_get_args(reply, &error,
1101 DBUS_TYPE_OBJECT_PATH, &path,
1102 DBUS_TYPE_INVALID)) {
4cf5d675 1103 log_error("Failed to parse reply: %s", bus_error_message(&error));
45fb0699
LP		 1104 r = -EIO;
1105 goto finish;
1106 }
1107
ee5762e3 1108 if (need_daemon_reload(bus, name))
45fb0699
LP		 1109 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1110 arg_session ? "--session" : "--system");
1111
6e905d93 1112 if (!arg_no_block) {
e4b61340 1113 char *p;
7e4249b9 1114
7e4249b9
LP		 1115 if (!(p = strdup(path))) {
1116 log_error("Failed to duplicate path.");
1117 r = -ENOMEM;
1118 goto finish;
1119 }
1120
1121 if ((r = set_put(s, p)) < 0) {
e4b61340 1122 free(p);
7e4249b9
LP		 1123 log_error("Failed to add path to set.");
1124 goto finish;
1125 }
e4b61340 1126 }
7e4249b9 1127
e4b61340 1128 r = 1;
7e4249b9
LP		 1129
1130finish:
7e4249b9
LP		 1131 if (m)
1132 dbus_message_unref(m);
1133
1134 if (reply)
1135 dbus_message_unref(reply);
1136
1137 dbus_error_free(&error);
1138
1139 return r;
1140}
1141
514f4ef5
LP		 1142static enum action verb_to_action(const char *verb) {
1143 if (streq(verb, "halt"))
1144 return ACTION_HALT;
1145 else if (streq(verb, "poweroff"))
1146 return ACTION_POWEROFF;
1147 else if (streq(verb, "reboot"))
1148 return ACTION_REBOOT;
1149 else if (streq(verb, "rescue"))
1150 return ACTION_RESCUE;
1151 else if (streq(verb, "emergency"))
1152 return ACTION_EMERGENCY;
1153 else if (streq(verb, "default"))
1154 return ACTION_DEFAULT;
1155 else
1156 return ACTION_INVALID;
1157}
1158
e4b61340
LP		 1159static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1160
1161 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1162 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1163 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1164 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1165 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1166 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1167 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1168 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1169 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1170 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
514f4ef5 1171 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
e4b61340
LP		 1172 };
1173
1174 int r;
1175 unsigned i;
514f4ef5 1176 const char *method, *mode, *one_name;
e4b61340
LP		 1177 Set *s = NULL;
1178
514f4ef5
LP		 1179 assert(bus);
1180
e4b61340
LP		 1181 if (arg_action == ACTION_SYSTEMCTL) {
1182 method =
6f28c033
LP		 1183 streq(args[0], "stop") ? "StopUnit" :
1184 streq(args[0], "reload") ? "ReloadUnit" :
1185 streq(args[0], "restart") ? "RestartUnit" :
1186 streq(args[0], "try-restart") ? "TryRestartUnit" :
1187 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
9d8a57ff
LP		 1188 streq(args[0], "reload-or-try-restart") ||
1189 streq(args[0], "force-reload") ||
1190 streq(args[0], "condrestart") ? "ReloadOrTryRestartUnit" :
6f28c033 1191 "StartUnit";
e4b61340
LP		 1192
1193 mode =
514f4ef5
LP		 1194 (streq(args[0], "isolate") ||
1195 streq(args[0], "rescue") ||
1196 streq(args[0], "emergency")) ? "isolate" :
90d473a1
LP		 1197 arg_fail ? "fail" :
1198 "replace";
e4b61340 1199
514f4ef5 1200 one_name = table[verb_to_action(args[0])];
e4b61340 1201
e4b61340
LP		 1202 } else {
1203 assert(arg_action < ELEMENTSOF(table));
1204 assert(table[arg_action]);
1205
1206 method = "StartUnit";
514f4ef5
LP		 1207
1208 mode = (arg_action == ACTION_EMERGENCY ||
1209 arg_action == ACTION_RESCUE) ? "isolate" : "replace";
1210
1211 one_name = table[arg_action];
1212 }
1213
6e905d93 1214 if (!arg_no_block) {
514f4ef5
LP		 1215 if ((r = enable_wait_for_jobs(bus)) < 0) {
1216 log_error("Could not watch jobs: %s", strerror(-r));
1217 goto finish;
1218 }
1219
1220 if (!(s = set_new(string_hash_func, string_compare_func))) {
1221 log_error("Failed to allocate set.");
1222 r = -ENOMEM;
1223 goto finish;
1224 }
e4b61340
LP		 1225 }
1226
1227 r = 0;
1228
514f4ef5
LP		 1229 if (one_name) {
1230 if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
1231 goto finish;
1232 } else {
e4b61340
LP		 1233 for (i = 1; i < n; i++)
1234 if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
1235 goto finish;
e4b61340
LP		 1236 }
1237
6e905d93 1238 if (!arg_no_block)
fbc43921
LP		 1239 if ((r = wait_for_jobs(bus, s)) < 0)
1240 goto finish;
1241
1242 r = 1;
514f4ef5 1243
e4b61340
LP		 1244finish:
1245 if (s)
1246 set_free_free(s);
1247
1248 return r;
1249}
1250
514f4ef5 1251static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1252 int r;
1253
514f4ef5
LP		 1254 assert(bus);
1255 assert(args);
1256
983d9c90
LP		 1257 r = start_unit(bus, args, n);
1258
1259 if (r >= 0)
1260 warn_wall(verb_to_action(args[0]));
514f4ef5 1261
983d9c90 1262 return r;
514f4ef5
LP		 1263}
1264
0183528f
LP		 1265static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1266 DBusMessage *m = NULL, *reply = NULL;
1267 const char
1268 *interface = "org.freedesktop.systemd1.Unit",
1269 *property = "ActiveState";
1270 int r = -EADDRNOTAVAIL;
1271 DBusError error;
1272 unsigned i;
1273
1274 assert(bus);
1275 assert(args);
1276
1277 dbus_error_init(&error);
1278
1279 for (i = 1; i < n; i++) {
1280 const char *path = NULL;
1281 const char *state;
1282 DBusMessageIter iter, sub;
1283
1284 if (!(m = dbus_message_new_method_call(
1285 "org.freedesktop.systemd1",
1286 "/org/freedesktop/systemd1",
1287 "org.freedesktop.systemd1.Manager",
1288 "GetUnit"))) {
1289 log_error("Could not allocate message.");
1290 r = -ENOMEM;
1291 goto finish;
1292 }
1293
1294 if (!dbus_message_append_args(m,
1295 DBUS_TYPE_STRING, &args[i],
1296 DBUS_TYPE_INVALID)) {
1297 log_error("Could not append arguments to message.");
1298 r = -ENOMEM;
1299 goto finish;
1300 }
1301
1302 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1303
1304 /* Hmm, cannot figure out anything about this unit... */
1305 if (!arg_quiet)
1306 puts("unknown");
1307
ed2d7a44 1308 dbus_error_free(&error);
0183528f
LP		 1309 continue;
1310 }
1311
1312 if (!dbus_message_get_args(reply, &error,
1313 DBUS_TYPE_OBJECT_PATH, &path,
1314 DBUS_TYPE_INVALID)) {
4cf5d675 1315 log_error("Failed to parse reply: %s", bus_error_message(&error));
0183528f
LP		 1316 r = -EIO;
1317 goto finish;
1318 }
1319
1320 dbus_message_unref(m);
1321 if (!(m = dbus_message_new_method_call(
1322 "org.freedesktop.systemd1",
1323 path,
1324 "org.freedesktop.DBus.Properties",
1325 "Get"))) {
1326 log_error("Could not allocate message.");
1327 r = -ENOMEM;
1328 goto finish;
1329 }
1330
1331 if (!dbus_message_append_args(m,
1332 DBUS_TYPE_STRING, &interface,
1333 DBUS_TYPE_STRING, &property,
1334 DBUS_TYPE_INVALID)) {
1335 log_error("Could not append arguments to message.");
1336 r = -ENOMEM;
1337 goto finish;
1338 }
1339
1340 dbus_message_unref(reply);
1341 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1342 log_error("Failed to issue method call: %s", bus_error_message(&error));
0183528f
LP		 1343 r = -EIO;
1344 goto finish;
1345 }
1346
1347 if (!dbus_message_iter_init(reply, &iter) ||
1348 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1349 log_error("Failed to parse reply.");
1350 r = -EIO;
1351 goto finish;
1352 }
1353
1354 dbus_message_iter_recurse(&iter, &sub);
1355
1356 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1357 log_error("Failed to parse reply.");
1358 r = -EIO;
1359 goto finish;
1360 }
1361
1362 dbus_message_iter_get_basic(&sub, &state);
1363
1364 if (!arg_quiet)
1365 puts(state);
1366
f1e36d67 1367 if (streq(state, "active") || streq(state, "reloading"))
0183528f
LP		 1368 r = 0;
1369
1370 dbus_message_unref(m);
1371 dbus_message_unref(reply);
1372 m = reply = NULL;
1373 }
1374
1375finish:
1376 if (m)
1377 dbus_message_unref(m);
1378
1379 if (reply)
1380 dbus_message_unref(reply);
1381
1382 dbus_error_free(&error);
1383
1384 return r;
48220598
LP		 1385}
1386
582a507f
LP		 1387typedef struct ExecStatusInfo {
1388 char *path;
1389 char **argv;
1390
b708e7ce
LP		 1391 bool ignore;
1392
582a507f
LP		 1393 usec_t start_timestamp;
1394 usec_t exit_timestamp;
1395 pid_t pid;
1396 int code;
1397 int status;
1398
1399 LIST_FIELDS(struct ExecStatusInfo, exec);
1400} ExecStatusInfo;
1401
1402static void exec_status_info_free(ExecStatusInfo *i) {
1403 assert(i);
1404
1405 free(i->path);
1406 strv_free(i->argv);
1407 free(i);
1408}
1409
1410static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1411 uint64_t start_timestamp, exit_timestamp;
1412 DBusMessageIter sub2, sub3;
1413 const char*path;
1414 unsigned n;
1415 uint32_t pid;
1416 int32_t code, status;
b708e7ce 1417 dbus_bool_t ignore;
582a507f
LP		 1418
1419 assert(i);
1420 assert(i);
1421
1422 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1423 return -EIO;
1424
1425 dbus_message_iter_recurse(sub, &sub2);
1426
1427 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1428 return -EIO;
1429
1430 if (!(i->path = strdup(path)))
1431 return -ENOMEM;
1432
1433 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1434 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1435 return -EIO;
1436
1437 n = 0;
1438 dbus_message_iter_recurse(&sub2, &sub3);
1439 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1440 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1441 dbus_message_iter_next(&sub3);
1442 n++;
1443 }
1444
1445
1446 if (!(i->argv = new0(char*, n+1)))
1447 return -ENOMEM;
1448
1449 n = 0;
1450 dbus_message_iter_recurse(&sub2, &sub3);
1451 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1452 const char *s;
1453
1454 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1455 dbus_message_iter_get_basic(&sub3, &s);
1456 dbus_message_iter_next(&sub3);
1457
1458 if (!(i->argv[n++] = strdup(s)))
1459 return -ENOMEM;
1460 }
1461
1462 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1463 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1464 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1465 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1466 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1467 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1468 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1469 return -EIO;
1470
b708e7ce 1471 i->ignore = ignore;
582a507f
LP		 1472 i->start_timestamp = (usec_t) start_timestamp;
1473 i->exit_timestamp = (usec_t) exit_timestamp;
1474 i->pid = (pid_t) pid;
1475 i->code = code;
1476 i->status = status;
1477
1478 return 0;
1479}
1480
61cbdc4b
LP		 1481typedef struct UnitStatusInfo {
1482 const char *id;
1483 const char *load_state;
1484 const char *active_state;
1485 const char *sub_state;
1486
1487 const char *description;
1488
c31b4423 1489 const char *path;
61cbdc4b
LP		 1490 const char *default_control_group;
1491
584be568
LP		 1492 usec_t inactive_exit_timestamp;
1493 usec_t active_enter_timestamp;
1494 usec_t active_exit_timestamp;
1495 usec_t inactive_enter_timestamp;
1496
45fb0699
LP		 1497 bool need_daemon_reload;
1498
61cbdc4b
LP		 1499 /* Service */
1500 pid_t main_pid;
1501 pid_t control_pid;
1502 const char *status_text;
d06dacd0
LP		 1503 bool running:1;
1504 bool is_sysv:1;
61cbdc4b
LP		 1505
1506 usec_t start_timestamp;
1507 usec_t exit_timestamp;
1508
1509 int exit_code, exit_status;
1510
1511 /* Socket */
1512 unsigned n_accepted;
1513 unsigned n_connections;
b8131a87 1514 bool accept;
61cbdc4b
LP		 1515
1516 /* Device */
1517 const char *sysfs_path;
1518
1519 /* Mount, Automount */
1520 const char *where;
1521
1522 /* Swap */
1523 const char *what;
582a507f
LP		 1524
1525 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1526} UnitStatusInfo;
1527
1528static void print_status_info(UnitStatusInfo *i) {
582a507f 1529 ExecStatusInfo *p;
2ee68f72 1530 const char *on, *off, *ss;
584be568
LP		 1531 usec_t timestamp;
1532 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1533 char since2[FORMAT_TIMESTAMP_MAX], *s2;
582a507f 1534
61cbdc4b
LP		 1535 assert(i);
1536
1537 /* This shows pretty information about a unit. See
1538 * print_property() for a low-level property printer */
1539
1540 printf("%s", strna(i->id));
1541
1542 if (i->description && !streq_ptr(i->id, i->description))
1543 printf(" - %s", i->description);
1544
1545 printf("\n");
1546
c31b4423
LP		 1547 if (streq_ptr(i->load_state, "failed")) {
1548 on = ansi_highlight(true);
1549 off = ansi_highlight(false);
1550 } else
1551 on = off = "";
1552
1553 if (i->path)
1554 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1555 else
c31b4423 1556 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1557
2ee68f72
LP		 1558 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1559
fdf20a31 1560 if (streq_ptr(i->active_state, "failed")) {
2ee68f72
LP		 1561 on = ansi_highlight(true);
1562 off = ansi_highlight(false);
1563 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1564 on = ansi_highlight_green(true);
1565 off = ansi_highlight_green(false);
1566 } else
1567 on = off = "";
1568
1569 if (ss)
584be568 1570 printf("\t Active: %s%s (%s)%s",
2ee68f72
LP		 1571 on,
1572 strna(i->active_state),
1573 ss,
1574 off);
1575 else
584be568 1576 printf("\t Active: %s%s%s",
2ee68f72
LP		 1577 on,
1578 strna(i->active_state),
1579 off);
61cbdc4b 1580
584be568
LP		 1581 timestamp = (streq_ptr(i->active_state, "active") ||
1582 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1583 (streq_ptr(i->active_state, "inactive") ||
fdf20a31 1584 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
584be568
LP		 1585 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1586 i->active_exit_timestamp;
1587
1588 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1589 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1590
1591 if (s1)
1592 printf(" since [%s; %s]\n", s2, s1);
1593 else if (s2)
1594 printf(" since [%s]\n", s2);
1595 else
1596 printf("\n");
1597
61cbdc4b
LP		 1598 if (i->sysfs_path)
1599 printf("\t Device: %s\n", i->sysfs_path);
1600 else if (i->where)
1601 printf("\t Where: %s\n", i->where);
1602 else if (i->what)
1603 printf("\t What: %s\n", i->what);
1604
b8131a87 1605 if (i->accept)
61cbdc4b
LP		 1606 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1607
582a507f
LP		 1608 LIST_FOREACH(exec, p, i->exec) {
1609 char *t;
1610
1611 /* Only show exited processes here */
1612 if (p->code == 0)
1613 continue;
1614
1615 t = strv_join(p->argv, " ");
f3d41013 1616 printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
582a507f
LP		 1617 free(t);
1618
d06dacd0
LP		 1619 if (p->code == CLD_EXITED) {
1620 const char *c;
1621
582a507f 1622 printf("status=%i", p->status);
d06dacd0
LP		 1623
1624 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1625 printf("/%s", c);
1626
1627 } else
582a507f
LP		 1628 printf("signal=%s", signal_to_string(p->status));
1629 printf(")\n");
1630
1631 if (i->main_pid == p->pid &&
1632 i->start_timestamp == p->start_timestamp &&
1633 i->exit_timestamp == p->start_timestamp)
1634 /* Let's not show this twice */
1635 i->main_pid = 0;
1636
1637 if (p->pid == i->control_pid)
1638 i->control_pid = 0;
1639 }
1640
61cbdc4b
LP		 1641 if (i->main_pid > 0 || i->control_pid > 0) {
1642 printf("\t");
1643
1644 if (i->main_pid > 0) {
f3d41013 1645 printf("Main PID: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1646
1647 if (i->running) {
1648 char *t = NULL;
1649 get_process_name(i->main_pid, &t);
1650 if (t) {
1651 printf(" (%s)", t);
1652 free(t);
1653 }
6d4fc029 1654 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1655 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1656
d06dacd0
LP		 1657 if (i->exit_code == CLD_EXITED) {
1658 const char *c;
1659
61cbdc4b 1660 printf("status=%i", i->exit_status);
d06dacd0
LP		 1661
1662 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1663 printf("/%s", c);
1664
1665 } else
582a507f 1666 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1667 printf(")");
1668 }
61cbdc4b
LP		 1669 }
1670
1671 if (i->main_pid > 0 && i->control_pid > 0)
1672 printf(";");
1673
1674 if (i->control_pid > 0) {
1675 char *t = NULL;
1676
1677 printf(" Control: %u", (unsigned) i->control_pid);
1678
1679 get_process_name(i->control_pid, &t);
1680 if (t) {
1681 printf(" (%s)", t);
1682 free(t);
1683 }
1684 }
1685
1686 printf("\n");
1687 }
1688
17bb7382
LP		 1689 if (i->status_text)
1690 printf("\t Status: \"%s\"\n", i->status_text);
1691
c59760ee 1692 if (i->default_control_group) {
ab35fb1b
LP		 1693 unsigned c;
1694
61cbdc4b 1695 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1696
1697 if ((c = columns()) > 18)
1698 c -= 18;
1699 else
1700 c = 0;
1701
35d2e7ec 1702 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1703 }
45fb0699
LP		 1704
1705 if (i->need_daemon_reload)
2cc59dbf
LP		 1706 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1707 ansi_highlight(true),
1708 ansi_highlight(false),
45fb0699 1709 arg_session ? "--session" : "--system");
61cbdc4b
LP		 1710}
1711
1712static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1713
1714 switch (dbus_message_iter_get_arg_type(iter)) {
1715
1716 case DBUS_TYPE_STRING: {
1717 const char *s;
1718
1719 dbus_message_iter_get_basic(iter, &s);
1720
1721 if (s[0]) {
1722 if (streq(name, "Id"))
1723 i->id = s;
1724 else if (streq(name, "LoadState"))
1725 i->load_state = s;
1726 else if (streq(name, "ActiveState"))
1727 i->active_state = s;
1728 else if (streq(name, "SubState"))
1729 i->sub_state = s;
1730 else if (streq(name, "Description"))
1731 i->description = s;
1732 else if (streq(name, "FragmentPath"))
c31b4423 1733 i->path = s;
d06dacd0
LP		 1734 else if (streq(name, "SysVPath")) {
1735 i->is_sysv = true;
c31b4423 1736 i->path = s;
d06dacd0 1737 } else if (streq(name, "DefaultControlGroup"))
61cbdc4b
LP		 1738 i->default_control_group = s;
1739 else if (streq(name, "StatusText"))
1740 i->status_text = s;
1741 else if (streq(name, "SysFSPath"))
1742 i->sysfs_path = s;
1743 else if (streq(name, "Where"))
1744 i->where = s;
1745 else if (streq(name, "What"))
1746 i->what = s;
1747 }
1748
1749 break;
1750 }
1751
b8131a87
LP		 1752 case DBUS_TYPE_BOOLEAN: {
1753 dbus_bool_t b;
1754
1755 dbus_message_iter_get_basic(iter, &b);
1756
1757 if (streq(name, "Accept"))
1758 i->accept = b;
45fb0699
LP		 1759 else if (streq(name, "NeedDaemonReload"))
1760 i->need_daemon_reload = b;
b8131a87
LP		 1761
1762 break;
1763 }
1764
61cbdc4b
LP		 1765 case DBUS_TYPE_UINT32: {
1766 uint32_t u;
1767
1768 dbus_message_iter_get_basic(iter, &u);
1769
1770 if (streq(name, "MainPID")) {
1771 if (u > 0) {
1772 i->main_pid = (pid_t) u;
1773 i->running = true;
1774 }
1775 } else if (streq(name, "ControlPID"))
1776 i->control_pid = (pid_t) u;
1777 else if (streq(name, "ExecMainPID")) {
1778 if (u > 0)
1779 i->main_pid = (pid_t) u;
1780 } else if (streq(name, "NAccepted"))
1781 i->n_accepted = u;
1782 else if (streq(name, "NConnections"))
1783 i->n_connections = u;
1784
1785 break;
1786 }
1787
1788 case DBUS_TYPE_INT32: {
1789 int32_t j;
1790
1791 dbus_message_iter_get_basic(iter, &j);
1792
1793 if (streq(name, "ExecMainCode"))
1794 i->exit_code = (int) j;
1795 else if (streq(name, "ExecMainStatus"))
1796 i->exit_status = (int) j;
1797
1798 break;
1799 }
1800
1801 case DBUS_TYPE_UINT64: {
1802 uint64_t u;
1803
1804 dbus_message_iter_get_basic(iter, &u);
1805
1806 if (streq(name, "ExecMainStartTimestamp"))
1807 i->start_timestamp = (usec_t) u;
1808 else if (streq(name, "ExecMainExitTimestamp"))
1809 i->exit_timestamp = (usec_t) u;
584be568
LP		 1810 else if (streq(name, "ActiveEnterTimestamp"))
1811 i->active_enter_timestamp = (usec_t) u;
1812 else if (streq(name, "InactiveEnterTimestamp"))
1813 i->inactive_enter_timestamp = (usec_t) u;
1814 else if (streq(name, "InactiveExitTimestamp"))
1815 i->inactive_exit_timestamp = (usec_t) u;
1816 else if (streq(name, "ActiveExitTimestamp"))
1817 i->active_exit_timestamp = (usec_t) u;
61cbdc4b
LP		 1818
1819 break;
1820 }
582a507f
LP		 1821
1822 case DBUS_TYPE_ARRAY: {
1823
1824 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1825 startswith(name, "Exec")) {
1826 DBusMessageIter sub;
1827
1828 dbus_message_iter_recurse(iter, &sub);
1829 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1830 ExecStatusInfo *info;
1831 int r;
1832
1833 if (!(info = new0(ExecStatusInfo, 1)))
1834 return -ENOMEM;
1835
1836 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1837 free(info);
1838 return r;
1839 }
1840
1841 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1842
1843 dbus_message_iter_next(&sub);
1844 }
1845 }
1846
1847 break;
1848 }
61cbdc4b
LP		 1849 }
1850
1851 return 0;
1852}
1853
48220598
LP		 1854static int print_property(const char *name, DBusMessageIter *iter) {
1855 assert(name);
1856 assert(iter);
1857
61cbdc4b
LP		 1858 /* This is a low-level property printer, see
1859 * print_status_info() for the nicer output */
1860
ea4a240d 1861 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 1862 return 0;
1863
1864 switch (dbus_message_iter_get_arg_type(iter)) {
1865
1866 case DBUS_TYPE_STRING: {
1867 const char *s;
1868 dbus_message_iter_get_basic(iter, &s);
1869
1870 if (arg_all || s[0])
1871 printf("%s=%s\n", name, s);
1872
1873 return 0;
1874 }
1875
1876 case DBUS_TYPE_BOOLEAN: {
1877 dbus_bool_t b;
1878 dbus_message_iter_get_basic(iter, &b);
1879 printf("%s=%s\n", name, yes_no(b));
1880
1881 return 0;
1882 }
1883
1884 case DBUS_TYPE_UINT64: {
1885 uint64_t u;
1886 dbus_message_iter_get_basic(iter, &u);
1887
1888 /* Yes, heuristics! But we can change this check
1889 * should it turn out to not be sufficient */
1890
14ad1d14 1891 if (strstr(name, "Timestamp")) {
48220598
LP		 1892 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1893
1894 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1895 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 1896 } else if (strstr(name, "USec")) {
1897 char timespan[FORMAT_TIMESPAN_MAX];
1898
1899 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 1900 } else
1901 printf("%s=%llu\n", name, (unsigned long long) u);
1902
1903 return 0;
1904 }
1905
1906 case DBUS_TYPE_UINT32: {
1907 uint32_t u;
1908 dbus_message_iter_get_basic(iter, &u);
1909
5bd07073 1910 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 1911 printf("%s=%04o\n", name, u);
1912 else
1913 printf("%s=%u\n", name, (unsigned) u);
1914
1915 return 0;
1916 }
1917
1918 case DBUS_TYPE_INT32: {
1919 int32_t i;
1920 dbus_message_iter_get_basic(iter, &i);
1921
1922 printf("%s=%i\n", name, (int) i);
1923 return 0;
1924 }
1925
1926 case DBUS_TYPE_STRUCT: {
1927 DBusMessageIter sub;
1928 dbus_message_iter_recurse(iter, &sub);
1929
ebf57b80 1930 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 1931 uint32_t u;
1932
1933 dbus_message_iter_get_basic(&sub, &u);
1934
1935 if (u)
1936 printf("%s=%u\n", name, (unsigned) u);
1937 else if (arg_all)
1938 printf("%s=\n", name);
1939
1940 return 0;
ebf57b80 1941 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 1942 const char *s;
1943
1944 dbus_message_iter_get_basic(&sub, &s);
1945
1946 if (arg_all || s[0])
1947 printf("%s=%s\n", name, s);
1948
1949 return 0;
1950 }
1951
1952 break;
1953 }
1954
1955 case DBUS_TYPE_ARRAY:
1956
1957 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
1958 DBusMessageIter sub;
1959 bool space = false;
1960
1961 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 1962 if (arg_all ||
1963 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1964 printf("%s=", name);
1965
1966 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1967 const char *s;
1968
1969 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
1970 dbus_message_iter_get_basic(&sub, &s);
1971 printf("%s%s", space ? " " : "", s);
1972
1973 space = true;
1974 dbus_message_iter_next(&sub);
1975 }
1976
1977 puts("");
1978 }
1979
ebf57b80 1980 return 0;
582a507f 1981
82c121a4
LP		 1982 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
1983 DBusMessageIter sub;
1984
1985 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 1986 if (arg_all ||
1987 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1988 printf("%s=", name);
1989
1990 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1991 uint8_t u;
ebf57b80 1992
82c121a4
LP		 1993 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
1994 dbus_message_iter_get_basic(&sub, &u);
1995 printf("%02x", u);
1996
1997 dbus_message_iter_next(&sub);
1998 }
1999
2000 puts("");
2001 }
2002
2003 return 0;
582a507f 2004
ebf57b80
LP		 2005 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2006 DBusMessageIter sub, sub2;
2007
2008 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 2009 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2010 const char *type, *path;
2011
2012 dbus_message_iter_recurse(&sub, &sub2);
2013
2014 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2015 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2016 printf("%s=%s\n", type, path);
2017
2018 dbus_message_iter_next(&sub);
2019 }
2020
707e5e52 2021 return 0;
582a507f 2022
707e5e52
LP		 2023 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2024 DBusMessageIter sub, sub2;
2025
2026 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 2027 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2028 const char *base;
2029 uint64_t value, next_elapse;
2030
2031 dbus_message_iter_recurse(&sub, &sub2);
2032
2033 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2034 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 2035 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2036 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2037
2038 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 2039 base,
552e4331
LP		 2040 format_timespan(timespan1, sizeof(timespan1), value),
2041 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2042 }
fe68089d
LP		 2043
2044 dbus_message_iter_next(&sub);
2045 }
2046
2047 return 0;
fe68089d 2048
582a507f
LP		 2049 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2050 DBusMessageIter sub;
fe68089d
LP		 2051
2052 dbus_message_iter_recurse(iter, &sub);
fe68089d 2053 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 2054 ExecStatusInfo info;
fe68089d 2055
582a507f
LP		 2056 zero(info);
2057 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 2058 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 2059 char *t;
2060
2061 t = strv_join(info.argv, " ");
2062
b708e7ce 2063 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		 2064 name,
2065 strna(info.path),
2066 strna(t),
b708e7ce 2067 yes_no(info.ignore),
582a507f
LP		 2068 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2069 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2070 (unsigned) info. pid,
2071 sigchld_code_to_string(info.code),
2072 info.status,
2073 info.code == CLD_EXITED ? "" : "/",
2074 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 2075
582a507f 2076 free(t);
fe68089d
LP		 2077 }
2078
582a507f
LP		 2079 free(info.path);
2080 strv_free(info.argv);
707e5e52
LP		 2081
2082 dbus_message_iter_next(&sub);
2083 }
2084
48220598
LP		 2085 return 0;
2086 }
2087
2088 break;
2089 }
2090
2091 if (arg_all)
2092 printf("%s=[unprintable]\n", name);
2093
2094 return 0;
2095}
2096
61cbdc4b 2097static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 2098 DBusMessage *m = NULL, *reply = NULL;
2099 const char *interface = "";
2100 int r;
2101 DBusError error;
2102 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 2103 UnitStatusInfo info;
582a507f 2104 ExecStatusInfo *p;
48220598
LP		 2105
2106 assert(bus);
2107 assert(path);
61cbdc4b 2108 assert(new_line);
48220598 2109
61cbdc4b 2110 zero(info);
48220598
LP		 2111 dbus_error_init(&error);
2112
2113 if (!(m = dbus_message_new_method_call(
2114 "org.freedesktop.systemd1",
2115 path,
2116 "org.freedesktop.DBus.Properties",
2117 "GetAll"))) {
2118 log_error("Could not allocate message.");
2119 r = -ENOMEM;
2120 goto finish;
2121 }
2122
2123 if (!dbus_message_append_args(m,
2124 DBUS_TYPE_STRING, &interface,
2125 DBUS_TYPE_INVALID)) {
2126 log_error("Could not append arguments to message.");
2127 r = -ENOMEM;
2128 goto finish;
2129 }
2130
2131 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2132 log_error("Failed to issue method call: %s", bus_error_message(&error));
48220598
LP		 2133 r = -EIO;
2134 goto finish;
2135 }
2136
2137 if (!dbus_message_iter_init(reply, &iter) ||
2138 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2139 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2140 log_error("Failed to parse reply.");
2141 r = -EIO;
2142 goto finish;
2143 }
2144
2145 dbus_message_iter_recurse(&iter, &sub);
2146
61cbdc4b
LP		 2147 if (*new_line)
2148 printf("\n");
2149
2150 *new_line = true;
2151
48220598
LP		 2152 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2153 const char *name;
2154
2155 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2156 log_error("Failed to parse reply.");
2157 r = -EIO;
2158 goto finish;
2159 }
2160
2161 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2162
48220598
LP		 2163 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2164 log_error("Failed to parse reply.");
2165 r = -EIO;
2166 goto finish;
2167 }
2168
2169 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2170 log_error("Failed to parse reply.");
2171 r = -EIO;
2172 goto finish;
2173 }
2174
2175 dbus_message_iter_recurse(&sub2, &sub3);
2176
61cbdc4b
LP		 2177 if (show_properties)
2178 r = print_property(name, &sub3);
2179 else
2180 r = status_property(name, &sub3, &info);
2181
2182 if (r < 0) {
48220598
LP		 2183 log_error("Failed to parse reply.");
2184 r = -EIO;
2185 goto finish;
2186 }
2187
2188 dbus_message_iter_next(&sub);
2189 }
2190
f1e36d67
LP		 2191 r = 0;
2192
2193 if (!show_properties) {
2194 if (arg_sysv_compat &&
2195 !streq_ptr(info.active_state, "active") &&
2196 !streq_ptr(info.active_state, "reloading")) {
2197
2198 /* If the SysV compatibility mode is on, we
2199 * will refuse to run "status" on units that
2200 * aren't active */
2201 log_error("Unit not active.");
2202 r = -EADDRNOTAVAIL;
2203 } else
2204 print_status_info(&info);
2205 }
61cbdc4b 2206
582a507f
LP		 2207 while ((p = info.exec)) {
2208 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2209 exec_status_info_free(p);
2210 }
2211
48220598
LP		 2212finish:
2213 if (m)
2214 dbus_message_unref(m);
2215
2216 if (reply)
2217 dbus_message_unref(reply);
2218
2219 dbus_error_free(&error);
2220
2221 return r;
2222}
2223
2224static int show(DBusConnection *bus, char **args, unsigned n) {
2225 DBusMessage *m = NULL, *reply = NULL;
2226 int r;
2227 DBusError error;
2228 unsigned i;
61cbdc4b 2229 bool show_properties, new_line = false;
48220598
LP		 2230
2231 assert(bus);
2232 assert(args);
2233
2234 dbus_error_init(&error);
2235
61cbdc4b
LP		 2236 show_properties = !streq(args[0], "status");
2237
2238 if (show_properties && n <= 1) {
48220598
LP		 2239 /* If not argument is specified inspect the manager
2240 * itself */
2241
61cbdc4b 2242 r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2243 goto finish;
2244 }
2245
2246 for (i = 1; i < n; i++) {
2247 const char *path = NULL;
2248 uint32_t id;
2249
598b557b
LP		 2250 if (safe_atou32(args[i], &id) < 0) {
2251
2252 /* Interpret as unit name */
48220598
LP		 2253
2254 if (!(m = dbus_message_new_method_call(
2255 "org.freedesktop.systemd1",
2256 "/org/freedesktop/systemd1",
2257 "org.freedesktop.systemd1.Manager",
e87d1818 2258 "LoadUnit"))) {
48220598
LP		 2259 log_error("Could not allocate message.");
2260 r = -ENOMEM;
2261 goto finish;
2262 }
2263
2264 if (!dbus_message_append_args(m,
2265 DBUS_TYPE_STRING, &args[i],
2266 DBUS_TYPE_INVALID)) {
2267 log_error("Could not append arguments to message.");
2268 r = -ENOMEM;
2269 goto finish;
2270 }
2271
ed2d7a44
LP		 2272 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2273
2274 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
4cf5d675 2275 log_error("Failed to issue method call: %s", bus_error_message(&error));
ed2d7a44
LP		 2276 r = -EIO;
2277 goto finish;
2278 }
2279
2280 dbus_error_free(&error);
2281
2282 dbus_message_unref(m);
2283 if (!(m = dbus_message_new_method_call(
2284 "org.freedesktop.systemd1",
2285 "/org/freedesktop/systemd1",
2286 "org.freedesktop.systemd1.Manager",
2287 "GetUnit"))) {
2288 log_error("Could not allocate message.");
2289 r = -ENOMEM;
2290 goto finish;
2291 }
2292
2293 if (!dbus_message_append_args(m,
2294 DBUS_TYPE_STRING, &args[i],
2295 DBUS_TYPE_INVALID)) {
2296 log_error("Could not append arguments to message.");
2297 r = -ENOMEM;
2298 goto finish;
2299 }
2300
2301 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2302 log_error("Failed to issue method call: %s", bus_error_message(&error));
ed2d7a44
LP		 2303 r = -EIO;
2304 goto finish;
2305 }
2306 }
2307
598b557b
LP		 2308 } else if (show_properties) {
2309
2310 /* Interpret as job id */
48220598
LP		 2311
2312 if (!(m = dbus_message_new_method_call(
2313 "org.freedesktop.systemd1",
2314 "/org/freedesktop/systemd1",
2315 "org.freedesktop.systemd1.Manager",
2316 "GetJob"))) {
2317 log_error("Could not allocate message.");
2318 r = -ENOMEM;
2319 goto finish;
2320 }
2321
2322 if (!dbus_message_append_args(m,
2323 DBUS_TYPE_UINT32, &id,
2324 DBUS_TYPE_INVALID)) {
2325 log_error("Could not append arguments to message.");
2326 r = -ENOMEM;
2327 goto finish;
2328 }
48220598 2329
598b557b 2330 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2331 log_error("Failed to issue method call: %s", bus_error_message(&error));
598b557b
LP		 2332 r = -EIO;
2333 goto finish;
2334 }
2335 } else {
2336
2337 /* Interpret as PID */
2338
2339 if (!(m = dbus_message_new_method_call(
2340 "org.freedesktop.systemd1",
2341 "/org/freedesktop/systemd1",
2342 "org.freedesktop.systemd1.Manager",
2343 "GetUnitByPID"))) {
2344 log_error("Could not allocate message.");
2345 r = -ENOMEM;
2346 goto finish;
2347 }
2348
2349 if (!dbus_message_append_args(m,
2350 DBUS_TYPE_UINT32, &id,
2351 DBUS_TYPE_INVALID)) {
2352 log_error("Could not append arguments to message.");
2353 r = -ENOMEM;
2354 goto finish;
2355 }
2356
ed2d7a44 2357 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2358 log_error("Failed to issue method call: %s", bus_error_message(&error));
ed2d7a44
LP		 2359 r = -EIO;
2360 goto finish;
2361 }
48220598
LP		 2362 }
2363
2364 if (!dbus_message_get_args(reply, &error,
2365 DBUS_TYPE_OBJECT_PATH, &path,
2366 DBUS_TYPE_INVALID)) {
4cf5d675 2367 log_error("Failed to parse reply: %s", bus_error_message(&error));
48220598
LP		 2368 r = -EIO;
2369 goto finish;
2370 }
2371
61cbdc4b 2372 if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
48220598
LP		 2373 goto finish;
2374
2375 dbus_message_unref(m);
2376 dbus_message_unref(reply);
2377 m = reply = NULL;
2378 }
2379
2380 r = 0;
2381
2382finish:
2383 if (m)
2384 dbus_message_unref(m);
2385
2386 if (reply)
2387 dbus_message_unref(reply);
2388
2389 dbus_error_free(&error);
2390
2391 return r;
0183528f
LP		 2392}
2393
7e4249b9
LP		 2394static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2395 DBusError error;
2396 DBusMessage *m = NULL, *reply = NULL;
2397
2398 assert(connection);
2399 assert(message);
2400
2401 dbus_error_init(&error);
2402
54165a39
LP		 2403 log_debug("Got D-Bus request: %s.%s() on %s",
2404 dbus_message_get_interface(message),
2405 dbus_message_get_member(message),
2406 dbus_message_get_path(message));
7e4249b9
LP		 2407
2408 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2409 log_error("Warning! D-Bus connection terminated.");
2410 dbus_connection_close(connection);
2411
2412 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2413 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2414 const char *id, *path;
2415
2416 if (!dbus_message_get_args(message, &error,
2417 DBUS_TYPE_STRING, &id,
2418 DBUS_TYPE_OBJECT_PATH, &path,
2419 DBUS_TYPE_INVALID))
4cf5d675 2420 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2421 else if (streq(dbus_message_get_member(message), "UnitNew"))
2422 printf("Unit %s added.\n", id);
2423 else
2424 printf("Unit %s removed.\n", id);
2425
2426 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2427 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2428 uint32_t id;
2429 const char *path;
2430
2431 if (!dbus_message_get_args(message, &error,
2432 DBUS_TYPE_UINT32, &id,
2433 DBUS_TYPE_OBJECT_PATH, &path,
2434 DBUS_TYPE_INVALID))
4cf5d675 2435 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2436 else if (streq(dbus_message_get_member(message), "JobNew"))
2437 printf("Job %u added.\n", id);
2438 else
2439 printf("Job %u removed.\n", id);
2440
2441
c4e2ceae 2442 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
7e4249b9
LP		 2443
2444 const char *path, *interface, *property = "Id";
2445 DBusMessageIter iter, sub;
2446
2447 path = dbus_message_get_path(message);
c4e2ceae
LP		 2448
2449 if (!dbus_message_get_args(message, &error,
2450 DBUS_TYPE_STRING, &interface,
2451 DBUS_TYPE_INVALID)) {
4cf5d675 2452 log_error("Failed to parse message: %s", bus_error_message(&error));
c4e2ceae
LP		 2453 goto finish;
2454 }
2455
2456 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2457 !streq(interface, "org.freedesktop.systemd1.Unit"))
2458 goto finish;
7e4249b9
LP		 2459
2460 if (!(m = dbus_message_new_method_call(
2461 "org.freedesktop.systemd1",
2462 path,
2463 "org.freedesktop.DBus.Properties",
2464 "Get"))) {
2465 log_error("Could not allocate message.");
2466 goto oom;
2467 }
2468
2469 if (!dbus_message_append_args(m,
2470 DBUS_TYPE_STRING, &interface,
2471 DBUS_TYPE_STRING, &property,
2472 DBUS_TYPE_INVALID)) {
2473 log_error("Could not append arguments to message.");
2474 goto finish;
2475 }
2476
2477 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
4cf5d675 2478 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2479 goto finish;
2480 }
2481
2482 if (!dbus_message_iter_init(reply, &iter) ||
2483 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2484 log_error("Failed to parse reply.");
2485 goto finish;
2486 }
2487
2488 dbus_message_iter_recurse(&iter, &sub);
2489
2490 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2491 const char *id;
2492
2493 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2494 log_error("Failed to parse reply.");
2495 goto finish;
2496 }
2497
2498 dbus_message_iter_get_basic(&sub, &id);
2499 printf("Unit %s changed.\n", id);
2500 } else {
2501 uint32_t id;
2502
2503 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2504 log_error("Failed to parse reply.");
2505 goto finish;
2506 }
2507
2508 dbus_message_iter_get_basic(&sub, &id);
2509 printf("Job %u changed.\n", id);
2510 }
2511 }
2512
2513finish:
2514 if (m)
2515 dbus_message_unref(m);
2516
2517 if (reply)
2518 dbus_message_unref(reply);
2519
2520 dbus_error_free(&error);
2521 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2522
2523oom:
2524 if (m)
2525 dbus_message_unref(m);
2526
2527 if (reply)
2528 dbus_message_unref(reply);
2529
2530 dbus_error_free(&error);
2531 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2532}
2533
2534static int monitor(DBusConnection *bus, char **args, unsigned n) {
2535 DBusMessage *m = NULL, *reply = NULL;
2536 DBusError error;
2537 int r;
2538
2539 dbus_error_init(&error);
2540
f4579ce7
LP		 2541 if (!private_bus) {
2542 dbus_bus_add_match(bus,
2543 "type='signal',"
2544 "sender='org.freedesktop.systemd1',"
2545 "interface='org.freedesktop.systemd1.Manager',"
2546 "path='/org/freedesktop/systemd1'",
2547 &error);
7e4249b9 2548
f4579ce7 2549 if (dbus_error_is_set(&error)) {
4cf5d675 2550 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2551 r = -EIO;
2552 goto finish;
2553 }
7e4249b9 2554
f4579ce7
LP		 2555 dbus_bus_add_match(bus,
2556 "type='signal',"
2557 "sender='org.freedesktop.systemd1',"
c4e2ceae
LP		 2558 "interface='org.freedesktop.DBus.Properties',"
2559 "member='PropertiesChanged'",
f4579ce7 2560 &error);
7e4249b9 2561
f4579ce7 2562 if (dbus_error_is_set(&error)) {
4cf5d675 2563 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2564 r = -EIO;
2565 goto finish;
2566 }
7e4249b9
LP		 2567 }
2568
2569 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2570 log_error("Failed to add filter.");
2571 r = -ENOMEM;
2572 goto finish;
2573 }
2574
2575 if (!(m = dbus_message_new_method_call(
2576 "org.freedesktop.systemd1",
2577 "/org/freedesktop/systemd1",
2578 "org.freedesktop.systemd1.Manager",
2579 "Subscribe"))) {
2580 log_error("Could not allocate message.");
2581 r = -ENOMEM;
2582 goto finish;
2583 }
2584
2585 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2586 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2587 r = -EIO;
2588 goto finish;
2589 }
2590
2591 while (dbus_connection_read_write_dispatch(bus, -1))
2592 ;
2593
2594 r = 0;
2595
2596finish:
2597
2598 /* This is slightly dirty, since we don't undo the filter or the matches. */
2599
2600 if (m)
2601 dbus_message_unref(m);
2602
2603 if (reply)
2604 dbus_message_unref(reply);
2605
2606 dbus_error_free(&error);
2607
2608 return r;
2609}
2610
2611static int dump(DBusConnection *bus, char **args, unsigned n) {
2612 DBusMessage *m = NULL, *reply = NULL;
2613 DBusError error;
2614 int r;
2615 const char *text;
2616
2617 dbus_error_init(&error);
2618
2619 if (!(m = dbus_message_new_method_call(
2620 "org.freedesktop.systemd1",
2621 "/org/freedesktop/systemd1",
2622 "org.freedesktop.systemd1.Manager",
2623 "Dump"))) {
2624 log_error("Could not allocate message.");
2625 return -ENOMEM;
2626 }
2627
2628 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2629 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2630 r = -EIO;
2631 goto finish;
2632 }
2633
2634 if (!dbus_message_get_args(reply, &error,
2635 DBUS_TYPE_STRING, &text,
2636 DBUS_TYPE_INVALID)) {
4cf5d675 2637 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2638 r = -EIO;
2639 goto finish;
2640 }
2641
2642 fputs(text, stdout);
2643
2644 r = 0;
2645
2646finish:
2647 if (m)
2648 dbus_message_unref(m);
2649
2650 if (reply)
2651 dbus_message_unref(reply);
2652
2653 dbus_error_free(&error);
2654
2655 return r;
2656}
2657
2658static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2659 DBusMessage *m = NULL, *reply = NULL;
2660 DBusError error;
2661 int r;
2662 const char *name = "", *path, *id;
2663 dbus_bool_t cleanup = FALSE;
2664 DBusMessageIter iter, sub;
2665 const char
2666 *interface = "org.freedesktop.systemd1.Unit",
2667 *property = "Id";
2668
2669 dbus_error_init(&error);
2670
2671 if (!(m = dbus_message_new_method_call(
2672 "org.freedesktop.systemd1",
2673 "/org/freedesktop/systemd1",
2674 "org.freedesktop.systemd1.Manager",
2675 "CreateSnapshot"))) {
2676 log_error("Could not allocate message.");
2677 return -ENOMEM;
2678 }
2679
2680 if (n > 1)
2681 name = args[1];
2682
2683 if (!dbus_message_append_args(m,
2684 DBUS_TYPE_STRING, &name,
2685 DBUS_TYPE_BOOLEAN, &cleanup,
2686 DBUS_TYPE_INVALID)) {
2687 log_error("Could not append arguments to message.");
2688 r = -ENOMEM;
2689 goto finish;
2690 }
2691
2692 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2693 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2694 r = -EIO;
2695 goto finish;
2696 }
2697
2698 if (!dbus_message_get_args(reply, &error,
2699 DBUS_TYPE_OBJECT_PATH, &path,
2700 DBUS_TYPE_INVALID)) {
4cf5d675 2701 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2702 r = -EIO;
2703 goto finish;
2704 }
2705
2706 dbus_message_unref(m);
2707 if (!(m = dbus_message_new_method_call(
2708 "org.freedesktop.systemd1",
2709 path,
2710 "org.freedesktop.DBus.Properties",
2711 "Get"))) {
2712 log_error("Could not allocate message.");
2713 return -ENOMEM;
2714 }
2715
2716 if (!dbus_message_append_args(m,
2717 DBUS_TYPE_STRING, &interface,
2718 DBUS_TYPE_STRING, &property,
2719 DBUS_TYPE_INVALID)) {
2720 log_error("Could not append arguments to message.");
2721 r = -ENOMEM;
2722 goto finish;
2723 }
2724
2725 dbus_message_unref(reply);
2726 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2727 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2728 r = -EIO;
2729 goto finish;
2730 }
2731
2732 if (!dbus_message_iter_init(reply, &iter) ||
2733 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2734 log_error("Failed to parse reply.");
2735 r = -EIO;
2736 goto finish;
2737 }
2738
2739 dbus_message_iter_recurse(&iter, &sub);
2740
2741 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2742 log_error("Failed to parse reply.");
2743 r = -EIO;
2744 goto finish;
2745 }
2746
2747 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 2748
2749 if (!arg_quiet)
2750 puts(id);
7e4249b9
LP		 2751 r = 0;
2752
2753finish:
2754 if (m)
2755 dbus_message_unref(m);
2756
2757 if (reply)
2758 dbus_message_unref(reply);
2759
2760 dbus_error_free(&error);
2761
2762 return r;
2763}
2764
6759e7a7
LP		 2765static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2766 DBusMessage *m = NULL, *reply = NULL;
2767 int r;
2768 DBusError error;
2769 unsigned i;
2770
2771 assert(bus);
2772 assert(args);
2773
2774 dbus_error_init(&error);
2775
2776 for (i = 1; i < n; i++) {
2777 const char *path = NULL;
2778
2779 if (!(m = dbus_message_new_method_call(
2780 "org.freedesktop.systemd1",
2781 "/org/freedesktop/systemd1",
2782 "org.freedesktop.systemd1.Manager",
2783 "GetUnit"))) {
2784 log_error("Could not allocate message.");
2785 r = -ENOMEM;
2786 goto finish;
2787 }
2788
2789 if (!dbus_message_append_args(m,
2790 DBUS_TYPE_STRING, &args[i],
2791 DBUS_TYPE_INVALID)) {
2792 log_error("Could not append arguments to message.");
2793 r = -ENOMEM;
2794 goto finish;
2795 }
2796
2797 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2798 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 2799 r = -EIO;
2800 goto finish;
2801 }
2802
2803 if (!dbus_message_get_args(reply, &error,
2804 DBUS_TYPE_OBJECT_PATH, &path,
2805 DBUS_TYPE_INVALID)) {
4cf5d675 2806 log_error("Failed to parse reply: %s", bus_error_message(&error));
6759e7a7
LP		 2807 r = -EIO;
2808 goto finish;
2809 }
2810
2811 dbus_message_unref(m);
2812 if (!(m = dbus_message_new_method_call(
2813 "org.freedesktop.systemd1",
2814 path,
2815 "org.freedesktop.systemd1.Snapshot",
2816 "Remove"))) {
2817 log_error("Could not allocate message.");
2818 r = -ENOMEM;
2819 goto finish;
2820 }
2821
2822 dbus_message_unref(reply);
2823 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2824 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 2825 r = -EIO;
2826 goto finish;
2827 }
2828
2829 dbus_message_unref(m);
2830 dbus_message_unref(reply);
2831 m = reply = NULL;
2832 }
2833
2834 r = 0;
2835
2836finish:
2837 if (m)
2838 dbus_message_unref(m);
2839
2840 if (reply)
2841 dbus_message_unref(reply);
2842
2843 dbus_error_free(&error);
2844
2845 return r;
2846}
2847
ee5762e3 2848static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 2849 DBusMessage *m = NULL, *reply = NULL;
2850 DBusError error;
2851 int r;
2852 const char *method;
2853
2854 dbus_error_init(&error);
2855
e4b61340
LP		 2856 if (arg_action == ACTION_RELOAD)
2857 method = "Reload";
2858 else if (arg_action == ACTION_REEXEC)
2859 method = "Reexecute";
2860 else {
2861 assert(arg_action == ACTION_SYSTEMCTL);
2862
2863 method =
ee5762e3
LP		 2864 streq(args[0], "clear-jobs") ||
2865 streq(args[0], "cancel") ? "ClearJobs" :
5632e374 2866 streq(args[0], "daemon-reexec") ? "Reexecute" :
fdf20a31 2867 streq(args[0], "reset-failed") ? "ResetFailed" :
ee5762e3
LP		 2868 streq(args[0], "daemon-exit") ? "Exit" :
2869 "Reload";
e4b61340 2870 }
7e4249b9
LP		 2871
2872 if (!(m = dbus_message_new_method_call(
2873 "org.freedesktop.systemd1",
2874 "/org/freedesktop/systemd1",
2875 "org.freedesktop.systemd1.Manager",
2876 method))) {
2877 log_error("Could not allocate message.");
2878 return -ENOMEM;
2879 }
2880
2881 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 2882
2883 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2884 /* There's always a fallback possible for
2885 * legacy actions. */
2886 r = 0;
2887 goto finish;
2888 }
2889
4cf5d675 2890 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2891 r = -EIO;
2892 goto finish;
2893 }
2894
e4b61340 2895 r = 1;
7e4249b9
LP		 2896
2897finish:
2898 if (m)
2899 dbus_message_unref(m);
2900
2901 if (reply)
2902 dbus_message_unref(reply);
2903
2904 dbus_error_free(&error);
2905
2906 return r;
2907}
2908
fdf20a31 2909static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
5632e374
LP		 2910 DBusMessage *m = NULL, *reply = NULL;
2911 unsigned i;
2912 int r;
2913 DBusError error;
2914
2915 assert(bus);
2916 dbus_error_init(&error);
2917
2918 if (n <= 1)
ee5762e3 2919 return daemon_reload(bus, args, n);
5632e374
LP		 2920
2921 for (i = 1; i < n; i++) {
2922
2923 if (!(m = dbus_message_new_method_call(
2924 "org.freedesktop.systemd1",
2925 "/org/freedesktop/systemd1",
2926 "org.freedesktop.systemd1.Manager",
fdf20a31 2927 "ResetFailedUnit"))) {
5632e374
LP		 2928 log_error("Could not allocate message.");
2929 r = -ENOMEM;
2930 goto finish;
2931 }
2932
2933 if (!dbus_message_append_args(m,
2934 DBUS_TYPE_STRING, args + i,
2935 DBUS_TYPE_INVALID)) {
2936 log_error("Could not append arguments to message.");
2937 r = -ENOMEM;
2938 goto finish;
2939 }
2940
2941 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2942 log_error("Failed to issue method call: %s", bus_error_message(&error));
5632e374
LP		 2943 r = -EIO;
2944 goto finish;
2945 }
2946
2947 dbus_message_unref(m);
2948 dbus_message_unref(reply);
2949 m = reply = NULL;
2950 }
2951
2952 r = 0;
2953
2954finish:
2955 if (m)
2956 dbus_message_unref(m);
2957
2958 if (reply)
2959 dbus_message_unref(reply);
2960
2961 dbus_error_free(&error);
2962
2963 return r;
2964}
2965
7e4249b9
LP		 2966static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
2967 DBusMessage *m = NULL, *reply = NULL;
2968 DBusError error;
2969 DBusMessageIter iter, sub, sub2;
2970 int r;
2971 const char
2972 *interface = "org.freedesktop.systemd1.Manager",
2973 *property = "Environment";
2974
2975 dbus_error_init(&error);
2976
2977 if (!(m = dbus_message_new_method_call(
2978 "org.freedesktop.systemd1",
2979 "/org/freedesktop/systemd1",
2980 "org.freedesktop.DBus.Properties",
2981 "Get"))) {
2982 log_error("Could not allocate message.");
2983 return -ENOMEM;
2984 }
2985
2986 if (!dbus_message_append_args(m,
2987 DBUS_TYPE_STRING, &interface,
2988 DBUS_TYPE_STRING, &property,
2989 DBUS_TYPE_INVALID)) {
2990 log_error("Could not append arguments to message.");
2991 r = -ENOMEM;
2992 goto finish;
2993 }
2994
2995 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2996 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2997 r = -EIO;
2998 goto finish;
2999 }
3000
3001 if (!dbus_message_iter_init(reply, &iter) ||
3002 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3003 log_error("Failed to parse reply.");
3004 r = -EIO;
3005 goto finish;
3006 }
3007
3008 dbus_message_iter_recurse(&iter, &sub);
3009
3010 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3011 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3012 log_error("Failed to parse reply.");
3013 r = -EIO;
3014 goto finish;
3015 }
3016
3017 dbus_message_iter_recurse(&sub, &sub2);
3018
3019 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3020 const char *text;
3021
3022 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3023 log_error("Failed to parse reply.");
3024 r = -EIO;
3025 goto finish;
3026 }
3027
3028 dbus_message_iter_get_basic(&sub2, &text);
3029 printf("%s\n", text);
3030
3031 dbus_message_iter_next(&sub2);
3032 }
3033
3034 r = 0;
3035
3036finish:
3037 if (m)
3038 dbus_message_unref(m);
3039
3040 if (reply)
3041 dbus_message_unref(reply);
3042
3043 dbus_error_free(&error);
3044
3045 return r;
3046}
3047
3048static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3049 DBusMessage *m = NULL, *reply = NULL;
3050 DBusError error;
3051 int r;
3052 const char *method;
3053 DBusMessageIter iter, sub;
3054 unsigned i;
3055
3056 dbus_error_init(&error);
3057
3058 method = streq(args[0], "set-environment")
3059 ? "SetEnvironment"
3060 : "UnsetEnvironment";
3061
3062 if (!(m = dbus_message_new_method_call(
3063 "org.freedesktop.systemd1",
3064 "/org/freedesktop/systemd1",
3065 "org.freedesktop.systemd1.Manager",
3066 method))) {
3067
3068 log_error("Could not allocate message.");
3069 return -ENOMEM;
3070 }
3071
3072 dbus_message_iter_init_append(m, &iter);
3073
3074 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3075 log_error("Could not append arguments to message.");
3076 r = -ENOMEM;
3077 goto finish;
3078 }
3079
3080 for (i = 1; i < n; i++)
3081 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3082 log_error("Could not append arguments to message.");
3083 r = -ENOMEM;
3084 goto finish;
3085 }
3086
3087 if (!dbus_message_iter_close_container(&iter, &sub)) {
3088 log_error("Could not append arguments to message.");
3089 r = -ENOMEM;
3090 goto finish;
3091 }
3092
3093 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3094 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3095 r = -EIO;
3096 goto finish;
3097 }
3098
3099 r = 0;
3100
3101finish:
3102 if (m)
3103 dbus_message_unref(m);
3104
3105 if (reply)
3106 dbus_message_unref(reply);
3107
3108 dbus_error_free(&error);
3109
3110 return r;
3111}
3112
ee5762e3
LP		 3113typedef struct {
3114 char *name;
3115 char *path;
3116
3117 char **aliases;
3118 char **wanted_by;
3119} InstallInfo;
3120
3121static Hashmap *will_install = NULL, *have_installed = NULL;
3122static Set *remove_symlinks_to = NULL;
3123
3124static void install_info_free(InstallInfo *i) {
3125 assert(i);
3126
3127 free(i->name);
3128 free(i->path);
3129 strv_free(i->aliases);
3130 strv_free(i->wanted_by);
3131 free(i);
3132}
3133
3134static void install_info_hashmap_free(Hashmap *m) {
3135 InstallInfo *i;
3136
3137 while ((i = hashmap_steal_first(m)))
3138 install_info_free(i);
3139
3140 hashmap_free(m);
3141}
3142
3143static bool unit_name_valid(const char *name) {
3144
3145 /* This is a minimal version of unit_name_valid() from
3146 * unit-name.c */
3147
3148 if (!*name)
3149 return false;
3150
3151 if (ignore_file(name))
3152 return false;
3153
3154 return true;
3155}
3156
3157static int install_info_add(const char *name) {
3158 InstallInfo *i;
3159 int r;
3160
3161 assert(will_install);
3162
3163 if (!unit_name_valid(name))
3164 return -EINVAL;
3165
3166 if (hashmap_get(have_installed, name) ||
3167 hashmap_get(will_install, name))
3168 return 0;
3169
3170 if (!(i = new0(InstallInfo, 1))) {
3171 r = -ENOMEM;
3172 goto fail;
3173 }
3174
3175 if (!(i->name = strdup(name))) {
3176 r = -ENOMEM;
3177 goto fail;
3178 }
3179
3180 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3181 goto fail;
3182
3183 return 0;
3184
3185fail:
3186 if (i)
3187 install_info_free(i);
3188
3189 return r;
3190}
3191
3192static int config_parse_also(
3193 const char *filename,
3194 unsigned line,
3195 const char *section,
3196 const char *lvalue,
3197 const char *rvalue,
3198 void *data,
3199 void *userdata) {
3200
3201 char *w;
3202 size_t l;
3203 char *state;
3204
3205 assert(filename);
3206 assert(lvalue);
3207 assert(rvalue);
3208
3209 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3210 char *n;
3211 int r;
3212
3213 if (!(n = strndup(w, l)))
3214 return -ENOMEM;
3215
3216 r = install_info_add(n);
3217 free(n);
3218
3219 if (r < 0)
3220 return r;
3221 }
3222
3223 return 0;
3224}
3225
3226static int mark_symlink_for_removal(const char *p) {
3227 char *n;
3228 int r;
3229
3230 assert(p);
3231 assert(path_is_absolute(p));
3232
3233 if (!remove_symlinks_to)
3234 return 0;
3235
3236 if (!(n = strdup(p)))
3237 return -ENOMEM;
3238
3239 path_kill_slashes(n);
3240
3241 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3242 free(n);
3243 return r == -EEXIST ? 0 : r;
3244 }
3245
3246 return 0;
3247}
3248
3249static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3250 int r = 0;
3251 DIR *d;
3252 struct dirent *de;
3253
3254 assert(fd >= 0);
3255 assert(root);
3256 assert(deleted);
3257
3258 if (!(d = fdopendir(fd))) {
3259 close_nointr_nofail(fd);
3260 return -errno;
3261 }
3262
3263 rewinddir(d);
3264
3265 while ((de = readdir(d))) {
3266 bool is_dir = false, is_link = false;
3267
3268 if (ignore_file(de->d_name))
3269 continue;
3270
3271 if (de->d_type == DT_LNK)
3272 is_link = true;
3273 else if (de->d_type == DT_DIR)
3274 is_dir = true;
3275 else if (de->d_type == DT_UNKNOWN) {
3276 struct stat st;
3277
3278 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3279 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3280
3281 if (r == 0)
3282 r = -errno;
3283 continue;
3284 }
3285
3286 is_link = S_ISLNK(st.st_mode);
3287 is_dir = S_ISDIR(st.st_mode);
3288 } else
3289 continue;
3290
3291 if (is_dir) {
3292 int nfd, q;
3293 char *p;
3294
3295 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3296 log_error("Failed to open %s/%s: %m", root, de->d_name);
3297
3298 if (r == 0)
3299 r = -errno;
3300 continue;
3301 }
3302
3303 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3304 log_error("Failed to allocate directory string.");
3305 close_nointr_nofail(nfd);
3306 r = -ENOMEM;
3307 break;
3308 }
3309
3310 /* This will close nfd, regardless whether it succeeds or not */
3311 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3312 free(p);
3313
3314 if (r == 0)
e364ad06 3315 r = q;
ee5762e3
LP		 3316
3317 } else if (is_link) {
3318 char *p, *dest, *c;
3319 int q;
3320
3321 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3322 log_error("Failed to allocate symlink string.");
3323 r = -ENOMEM;
3324 break;
3325 }
3326
3327 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3328 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3329 free(p);
3330
3331 if (r == 0)
3332 r = q;
3333 continue;
3334 }
3335
3336 if ((c = canonicalize_file_name(dest))) {
3337 /* This might fail if the destination
3338 * is already removed */
3339
3340 free(dest);
3341 dest = c;
3342 }
3343
3344 path_kill_slashes(dest);
3345 if (set_get(remove_symlinks_to, dest)) {
3346
3347 if (!arg_quiet)
3348 log_info("rm '%s'", p);
3349
3350 if (unlink(p) < 0) {
3351 log_error("Cannot unlink symlink %s: %m", p);
3352
3353 if (r == 0)
3354 r = -errno;
3355 } else {
3356 rmdir_parents(p, config_path);
3357 path_kill_slashes(p);
3358
3359 if (!set_get(remove_symlinks_to, p)) {
3360
3361 if ((r = mark_symlink_for_removal(p)) < 0) {
3362 if (r == 0)
3363 r = q;
3364 } else
3365 *deleted = true;
3366 }
3367 }
3368 }
3369
3370 free(p);
3371 free(dest);
3372 }
3373 }
3374
3375 closedir(d);
3376
3377 return r;
3378}
3379
3380static int remove_marked_symlinks(const char *config_path) {
3381 int fd, r = 0;
3382 bool deleted;
3383
3384 assert(config_path);
3385
3386 if (set_size(remove_symlinks_to) <= 0)
3387 return 0;
3388
3389 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3390 return -errno;
3391
3392 do {
3393 int q, cfd;
3394 deleted = false;
3395
3396 if ((cfd = dup(fd)) < 0) {
3397 r = -errno;
3398 break;
3399 }
3400
3401 /* This takes possession of cfd and closes it */
3402 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3403 if (r == 0)
3404 r = q;
3405 }
3406 } while (deleted);
3407
3408 close_nointr_nofail(fd);
3409
3410 return r;
3411}
3412
3413static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3414 int r;
3415
3416 assert(old_path);
3417 assert(new_path);
3418 assert(verb);
3419
3420 if (streq(verb, "enable")) {
3421 char *dest;
3422
3423 mkdir_parents(new_path, 0755);
3424
3425 if (symlink(old_path, new_path) >= 0) {
3426
3427 if (!arg_quiet)
3428 log_info("ln -s '%s' '%s'", old_path, new_path);
3429
3430 return 0;
3431 }
3432
3433 if (errno != EEXIST) {
3434 log_error("Cannot link %s to %s: %m", old_path, new_path);
3435 return -errno;
3436 }
3437
3438 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3439
3440 if (errno == EINVAL) {
3441 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3442 return -EEXIST;
3443 }
3444
3445 log_error("readlink() failed: %s", strerror(-r));
3446 return r;
3447 }
3448
3449 if (streq(dest, old_path)) {
3450 free(dest);
3451 return 0;
3452 }
3453
3454 if (!arg_force) {
3455 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3456 free(dest);
3457 return -EEXIST;
3458 }
3459
3460 free(dest);
3461 unlink(new_path);
3462
3463 if (!arg_quiet)
3464 log_info("ln -s '%s' '%s'", old_path, new_path);
3465
3466 if (symlink(old_path, new_path) >= 0)
3467 return 0;
3468
3469 log_error("Cannot link %s to %s: %m", old_path, new_path);
3470 return -errno;
3471
3472 } else if (streq(verb, "disable")) {
3473 char *dest;
3474
3475 if ((r = mark_symlink_for_removal(old_path)) < 0)
3476 return r;
3477
3478 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3479 if (errno == ENOENT)
3480 return 0;
3481
3482 if (errno == EINVAL) {
3483 log_warning("File %s not a symlink, ignoring.", old_path);
3484 return 0;
3485 }
3486
3487 log_error("readlink() failed: %s", strerror(-r));
3488 return r;
3489 }
3490
3491 if (!streq(dest, old_path)) {
3492 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3493 free(dest);
3494 return 0;
3495 }
3496
3497 free(dest);
3498
3499 if ((r = mark_symlink_for_removal(new_path)) < 0)
3500 return r;
3501
3502 if (!arg_quiet)
3503 log_info("rm '%s'", new_path);
3504
3505 if (unlink(new_path) >= 0)
3506 return 0;
3507
3508 log_error("Cannot unlink %s: %m", new_path);
3509 return -errno;
3510
3511 } else if (streq(verb, "is-enabled")) {
3512 char *dest;
3513
3514 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3515
3516 if (errno == ENOENT || errno == EINVAL)
3517 return 0;
3518
3519 log_error("readlink() failed: %s", strerror(-r));
3520 return r;
3521 }
3522
3523 if (streq(dest, old_path)) {
3524 free(dest);
3525 return 1;
3526 }
3527
3528 return 0;
3529 }
3530
3531 assert_not_reached("Unknown action.");
3532}
3533
3534static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3535 char **s;
3536 char *alias_path = NULL;
3537 int r;
3538
3539 assert(verb);
3540 assert(i);
3541 assert(config_path);
3542
3543 STRV_FOREACH(s, i->aliases) {
3544
3545 if (!unit_name_valid(*s)) {
3546 log_error("Invalid name %s.", *s);
3547 r = -EINVAL;
3548 goto finish;
3549 }
3550
3551 free(alias_path);
3552 if (!(alias_path = path_make_absolute(*s, config_path))) {
3553 log_error("Out of memory");
3554 r = -ENOMEM;
3555 goto finish;
3556 }
3557
3558 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3559 goto finish;
3560
3561 if (streq(verb, "disable"))
3562 rmdir_parents(alias_path, config_path);
3563 }
3564
3565 r = 0;
3566
3567finish:
3568 free(alias_path);
3569
3570 return r;
3571}
3572
3573static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3574 char **s;
3575 char *alias_path = NULL;
3576 int r;
3577
3578 assert(verb);
3579 assert(i);
3580 assert(config_path);
3581
3582 STRV_FOREACH(s, i->wanted_by) {
3583 if (!unit_name_valid(*s)) {
3584 log_error("Invalid name %s.", *s);
3585 r = -EINVAL;
3586 goto finish;
3587 }
3588
3589 free(alias_path);
3590 alias_path = NULL;
3591
3592 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3593 log_error("Out of memory");
3594 r = -ENOMEM;
3595 goto finish;
3596 }
3597
3598 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3599 goto finish;
3600
3601 if (streq(verb, "disable"))
3602 rmdir_parents(alias_path, config_path);
3603 }
3604
3605 r = 0;
3606
3607finish:
3608 free(alias_path);
3609
3610 return r;
3611}
3612
3613static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3614
3615 const ConfigItem items[] = {
3616 { "Alias", config_parse_strv, &i->aliases, "Install" },
3617 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3618 { "Also", config_parse_also, NULL, "Install" },
3619
3620 { NULL, NULL, NULL, NULL }
3621 };
3622
3623 char **p;
3624 char *filename = NULL;
3625 FILE *f = NULL;
3626 int r;
3627
3628 assert(paths);
3629 assert(i);
3630
3631 STRV_FOREACH(p, paths->unit_path) {
3632 int fd;
3633
3634 if (!(filename = path_make_absolute(i->name, *p))) {
3635 log_error("Out of memory");
3636 return -ENOMEM;
3637 }
3638
3639 /* Ensure that we don't follow symlinks */
3640 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3641 if ((f = fdopen(fd, "re")))
3642 break;
3643
3644 if (errno == ELOOP) {
3645 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3646 free(filename);
3647 return -errno;
3648 }
3649
3650 if (errno != ENOENT) {
3651 log_error("Failed to open %s: %m", filename);
3652 free(filename);
3653 return -errno;
3654 }
3655
3656 free(filename);
3657 filename = NULL;
3658 }
3659
3660 if (!f) {
3661 log_error("Couldn't find %s.", i->name);
3662 return -ENOENT;
3663 }
3664
3665 i->path = filename;
3666
3667 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3668 fclose(f);
3669 return r;
3670 }
3671
3672 fclose(f);
3673
3674 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3675 return r;
3676
3677 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3678 return r;
3679
3680 if ((r = mark_symlink_for_removal(filename)) < 0)
3681 return r;
3682
3683 if ((r = remove_marked_symlinks(config_path)) < 0)
3684 return r;
3685
3686 return 0;
3687}
3688
3689static char *get_config_path(void) {
3690
3691 if (arg_session && arg_global)
3692 return strdup(SESSION_CONFIG_UNIT_PATH);
3693
3694 if (arg_session) {
3695 char *p;
3696
3697 if (session_config_home(&p) < 0)
3698 return NULL;
3699
3700 return p;
3701 }
3702
3703 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3704}
3705
3706static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3707 DBusError error;
3708 int r;
3709 LookupPaths paths;
3710 char *config_path = NULL;
3711 unsigned j;
3712 InstallInfo *i;
3713 const char *verb = args[0];
3714
3715 dbus_error_init(&error);
3716
3717 zero(paths);
3718 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3719 log_error("Failed to determine lookup paths: %s", strerror(-r));
3720 goto finish;
3721 }
3722
3723 if (!(config_path = get_config_path())) {
3724 log_error("Failed to determine config path");
3725 r = -ENOMEM;
3726 goto finish;
3727 }
3728
3729 will_install = hashmap_new(string_hash_func, string_compare_func);
3730 have_installed = hashmap_new(string_hash_func, string_compare_func);
3731
3732 if (!will_install || !have_installed) {
3733 log_error("Failed to allocate unit sets.");
3734 r = -ENOMEM;
3735 goto finish;
3736 }
3737
3738 if (!arg_defaults && streq(verb, "disable"))
3739 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3740 log_error("Failed to allocate symlink sets.");
3741 r = -ENOMEM;
3742 goto finish;
3743 }
3744
3745 for (j = 1; j < n; j++)
3746 if ((r = install_info_add(args[j])) < 0)
3747 goto finish;
3748
3749 while ((i = hashmap_first(will_install))) {
3750 int q;
3751
3752 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3753
3754 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3755
3756 if (q < 0) {
3757 if (r == 0)
3758 r = q;
3759 goto finish;
3760 }
3761
3762 /* In test mode and found something */
3763 r = 1;
3764 break;
3765 }
3766 }
3767
3768 if (streq(verb, "is-enabled"))
3769 r = r > 0 ? 0 : -ENOENT;
3770 else if (bus &&
3771 /* Don't try to reload anything if the user asked us to not do this */
3772 !arg_no_reload &&
3773 /* Don't try to reload anything when updating a unit globally */
3774 !arg_global &&
3775 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3776 (arg_session || sd_booted() > 0) &&
3777 /* Don't try to reload anything if we are running in a chroot environment */
3778 (arg_session || running_in_chroot() <= 0) ) {
3779 int q;
3780
3781 if ((q = daemon_reload(bus, args, n)) < 0)
3782 r = q;
3783 }
3784
3785finish:
3786 install_info_hashmap_free(will_install);
3787 install_info_hashmap_free(have_installed);
3788
3789 set_free_free(remove_symlinks_to);
3790
3791 lookup_paths_free(&paths);
3792
3793 free(config_path);
3794
3795 return r;
3796}
3797
e4b61340 3798static int systemctl_help(void) {
7e4249b9 3799
2e33c433 3800 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 3801 "Send control commands to or query the systemd manager.\n\n"
48220598
LP		 3802 " -h --help Show this help\n"
3803 " -t --type=TYPE List only units of a particular type\n"
393a2f9b 3804 " -p --property=NAME Show only properties by this name\n"
48220598 3805 " -a --all Show all units/properties, including dead/empty ones\n"
ee5762e3
LP		 3806 " --full Don't ellipsize unit names on output\n"
3807 " --fail When queueing a new job, fail if conflicting jobs are\n"
6f28c033 3808 " pending\n"
ee5762e3
LP		 3809 " -q --quiet Suppress output\n"
3810 " --no-block Do not wait until operation finished\n"
48220598
LP		 3811 " --system Connect to system bus\n"
3812 " --session Connect to session bus\n"
4445a875 3813 " --order When generating graph for dot, show only order\n"
ee5762e3
LP		 3814 " --require When generating graph for dot, show only requirement\n"
3815 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3816 " --global Enable/disable unit files globally\n"
3817 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3818 " configuration\n"
3819 " --force When enabling unit files, override existing symlinks\n"
3820 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 3821 "Commands:\n"
3822 " list-units List units\n"
ee5762e3
LP		 3823 " start [NAME...] Start (activate) one or more units\n"
3824 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 3825 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 3826 " restart [NAME...] Start or restart one or more units\n"
3827 " try-restart [NAME...] Restart one or more units if active\n"
3828 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3829 " otherwise start or restart\n"
3830 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3831 " otherwise restart if active\n"
7e4249b9 3832 " isolate [NAME] Start one unit and stop all others\n"
ee5762e3 3833 " is-active [NAME...] Check whether units are active\n"
75676b72 3834 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 3835 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3 3836 " units/jobs or the manager\n"
fdf20a31
MM		 3837 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
3838 " units\n"
ee5762e3
LP		 3839 " enable [NAME...] Enable one or more unit files\n"
3840 " disable [NAME...] Disable one or more unit files\n"
3841 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 3842 " load [NAME...] Load one or more units\n"
3843 " list-jobs List jobs\n"
ee5762e3 3844 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 3845 " monitor Monitor unit/job changes\n"
3846 " dump Dump server status\n"
4445a875 3847 " dot Dump dependency graph for dot(1)\n"
7e4249b9 3848 " snapshot [NAME] Create a snapshot\n"
6759e7a7 3849 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 3850 " daemon-reload Reload systemd manager configuration\n"
3851 " daemon-reexec Reexecute systemd manager\n"
3852 " daemon-exit Ask the systemd manager to quit\n"
7e4249b9
LP		 3853 " show-environment Dump environment\n"
3854 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5
LP		 3855 " unset-environment [NAME...] Unset one or more environment variables\n"
3856 " halt Shut down and halt the system\n"
2e33c433 3857 " poweroff Shut down and power-off the system\n"
514f4ef5 3858 " reboot Shut down and reboot the system\n"
6f28c033
LP		 3859 " rescue Enter system rescue mode\n"
3860 " emergency Enter system emergency mode\n"
3861 " default Enter system default mode\n",
5b6319dc 3862 program_invocation_short_name);
7e4249b9
LP		 3863
3864 return 0;
3865}
3866
e4b61340
LP		 3867static int halt_help(void) {
3868
2e33c433 3869 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3870 "%s the system.\n\n"
3871 " --help Show this help\n"
3872 " --halt Halt the machine\n"
3873 " -p --poweroff Switch off the machine\n"
3874 " --reboot Reboot the machine\n"
2e33c433
LP		 3875 " -f --force Force immediate halt/power-off/reboot\n"
3876 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 3877 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 3878 " -n --no-sync Don't sync before halt/power-off/reboot\n"
3879 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 3880 program_invocation_short_name,
3881 arg_action == ACTION_REBOOT ? "Reboot" :
3882 arg_action == ACTION_POWEROFF ? "Power off" :
3883 "Halt");
3884
3885 return 0;
3886}
3887
3888static int shutdown_help(void) {
3889
08e4b1c5 3890 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
e4b61340
LP		 3891 "Shut down the system.\n\n"
3892 " --help Show this help\n"
3893 " -H --halt Halt the machine\n"
3894 " -P --poweroff Power-off the machine\n"
3895 " -r --reboot Reboot the machine\n"
3896 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433 3897 " -k Don't halt/power-off/reboot, just send warnings\n"
f6144808 3898 " --no-wall Don't send wall message before halt/power-off/reboot\n"
f6144808 3899 " -c Cancel a pending shutdown\n",
e4b61340
LP		 3900 program_invocation_short_name);
3901
3902 return 0;
3903}
3904
3905static int telinit_help(void) {
3906
2e33c433 3907 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 3908 "Send control commands to the init daemon.\n\n"
3909 " --help Show this help\n"
2e33c433 3910 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 3911 "Commands:\n"
3912 " 0 Power-off the machine\n"
3913 " 6 Reboot the machine\n"
514f4ef5
LP		 3914 " 2, 3, 4, 5 Start runlevelX.target unit\n"
3915 " 1, s, S Enter rescue mode\n"
3916 " q, Q Reload init daemon configuration\n"
3917 " u, U Reexecute init daemon\n",
e4b61340
LP		 3918 program_invocation_short_name);
3919
3920 return 0;
3921}
3922
3923static int runlevel_help(void) {
3924
2e33c433 3925 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3926 "Prints the previous and current runlevel of the init system.\n\n"
3927 " --help Show this help\n",
3928 program_invocation_short_name);
3929
3930 return 0;
3931}
3932
3933static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 3934
3935 enum {
90d473a1 3936 ARG_FAIL = 0x100,
7e4249b9
LP		 3937 ARG_SESSION,
3938 ARG_SYSTEM,
ee5762e3 3939 ARG_GLOBAL,
6e905d93 3940 ARG_NO_BLOCK,
4445a875
LP		 3941 ARG_NO_WALL,
3942 ARG_ORDER,
8fe914ec 3943 ARG_REQUIRE,
ee5762e3
LP		 3944 ARG_FULL,
3945 ARG_FORCE,
3946 ARG_NO_RELOAD,
f1e36d67
LP		 3947 ARG_DEFAULTS,
3948 ARG_SYSV_COMPAT
7e4249b9
LP		 3949 };
3950
3951 static const struct option options[] = {
ee5762e3
LP		 3952 { "help", no_argument, NULL, 'h' },
3953 { "type", required_argument, NULL, 't' },
3954 { "property", required_argument, NULL, 'p' },
3955 { "all", no_argument, NULL, 'a' },
3956 { "full", no_argument, NULL, ARG_FULL },
3957 { "fail", no_argument, NULL, ARG_FAIL },
3958 { "session", no_argument, NULL, ARG_SESSION },
3959 { "system", no_argument, NULL, ARG_SYSTEM },
3960 { "global", no_argument, NULL, ARG_GLOBAL },
3961 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
3962 { "no-wall", no_argument, NULL, ARG_NO_WALL },
3963 { "quiet", no_argument, NULL, 'q' },
3964 { "order", no_argument, NULL, ARG_ORDER },
3965 { "require", no_argument, NULL, ARG_REQUIRE },
3966 { "force", no_argument, NULL, ARG_FORCE },
3967 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
f1e36d67
LP		 3968 { "defaults", no_argument, NULL, ARG_DEFAULTS },
3969 { "sysv-compat", no_argument, NULL, ARG_SYSV_COMPAT },
ee5762e3 3970 { NULL, 0, NULL, 0 }
7e4249b9
LP		 3971 };
3972
3973 int c;
3974
e4b61340 3975 assert(argc >= 0);
7e4249b9
LP		 3976 assert(argv);
3977
48220598 3978 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
7e4249b9
LP		 3979
3980 switch (c) {
3981
3982 case 'h':
e4b61340 3983 systemctl_help();
7e4249b9
LP		 3984 return 0;
3985
3986 case 't':
3987 arg_type = optarg;
3988 break;
3989
ea4a240d
LP		 3990 case 'p': {
3991 char **l;
3992
3993 if (!(l = strv_append(arg_property, optarg)))
3994 return -ENOMEM;
3995
3996 strv_free(arg_property);
3997 arg_property = l;
48220598
LP		 3998
3999 /* If the user asked for a particular
4000 * property, show it to him, even if it is
4001 * empty. */
4002 arg_all = true;
4003 break;
ea4a240d 4004 }
48220598 4005
7e4249b9
LP		 4006 case 'a':
4007 arg_all = true;
4008 break;
4009
90d473a1
LP		 4010 case ARG_FAIL:
4011 arg_fail = true;
7e4249b9
LP		 4012 break;
4013
4014 case ARG_SESSION:
4015 arg_session = true;
4016 break;
4017
4018 case ARG_SYSTEM:
4019 arg_session = false;
4020 break;
4021
6e905d93
LP		 4022 case ARG_NO_BLOCK:
4023 arg_no_block = true;
7e4249b9
LP		 4024 break;
4025
514f4ef5
LP		 4026 case ARG_NO_WALL:
4027 arg_no_wall = true;
4028 break;
4029
4445a875
LP		 4030 case ARG_ORDER:
4031 arg_dot = DOT_ORDER;
4032 break;
4033
4034 case ARG_REQUIRE:
4035 arg_dot = DOT_REQUIRE;
4036 break;
4037
8fe914ec
LP		 4038 case ARG_FULL:
4039 arg_full = true;
4040 break;
4041
0183528f
LP		 4042 case 'q':
4043 arg_quiet = true;
4044 break;
4045
ee5762e3
LP		 4046 case ARG_FORCE:
4047 arg_force = true;
4048 break;
4049
4050 case ARG_NO_RELOAD:
4051 arg_no_reload = true;
4052 break;
4053
4054 case ARG_GLOBAL:
4055 arg_global = true;
4056 arg_session = true;
4057 break;
4058
4059 case ARG_DEFAULTS:
4060 arg_defaults = true;
4061 break;
4062
f1e36d67
LP		 4063 case ARG_SYSV_COMPAT:
4064 arg_sysv_compat = true;
4065 break;
4066
7e4249b9
LP		 4067 case '?':
4068 return -EINVAL;
4069
4070 default:
4071 log_error("Unknown option code %c", c);
4072 return -EINVAL;
4073 }
4074 }
4075
4076 return 1;
4077}
4078
e4b61340
LP		 4079static int halt_parse_argv(int argc, char *argv[]) {
4080
4081 enum {
4082 ARG_HELP = 0x100,
4083 ARG_HALT,
514f4ef5
LP		 4084 ARG_REBOOT,
4085 ARG_NO_WALL
e4b61340
LP		 4086 };
4087
4088 static const struct option options[] = {
4089 { "help", no_argument, NULL, ARG_HELP },
4090 { "halt", no_argument, NULL, ARG_HALT },
4091 { "poweroff", no_argument, NULL, 'p' },
4092 { "reboot", no_argument, NULL, ARG_REBOOT },
4093 { "force", no_argument, NULL, 'f' },
4094 { "wtmp-only", no_argument, NULL, 'w' },
4095 { "no-wtmp", no_argument, NULL, 'd' },
4096 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 4097 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4098 { NULL, 0, NULL, 0 }
4099 };
4100
4101 int c, runlevel;
4102
4103 assert(argc >= 0);
4104 assert(argv);
4105
4106 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4107 if (runlevel == '0' || runlevel == '6')
4108 arg_immediate = true;
4109
4110 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4111 switch (c) {
4112
4113 case ARG_HELP:
4114 halt_help();
4115 return 0;
4116
4117 case ARG_HALT:
4118 arg_action = ACTION_HALT;
4119 break;
4120
4121 case 'p':
a042efad
MS		 4122 if (arg_action != ACTION_REBOOT)
4123 arg_action = ACTION_POWEROFF;
e4b61340
LP		 4124 break;
4125
4126 case ARG_REBOOT:
4127 arg_action = ACTION_REBOOT;
4128 break;
4129
4130 case 'f':
4131 arg_immediate = true;
4132 break;
4133
4134 case 'w':
4135 arg_dry = true;
4136 break;
4137
4138 case 'd':
4139 arg_no_wtmp = true;
4140 break;
4141
4142 case 'n':
4143 arg_no_sync = true;
4144 break;
4145
514f4ef5
LP		 4146 case ARG_NO_WALL:
4147 arg_no_wall = true;
4148 break;
4149
e4b61340
LP		 4150 case 'i':
4151 case 'h':
4152 /* Compatibility nops */
4153 break;
4154
4155 case '?':
4156 return -EINVAL;
4157
4158 default:
4159 log_error("Unknown option code %c", c);
4160 return -EINVAL;
4161 }
4162 }
4163
4164 if (optind < argc) {
4165 log_error("Too many arguments.");
4166 return -EINVAL;
4167 }
4168
4169 return 1;
4170}
4171
f6144808
LP		 4172static int parse_time_spec(const char *t, usec_t *_u) {
4173 assert(t);
4174 assert(_u);
4175
4176 if (streq(t, "now"))
4177 *_u = 0;
4178 else if (t[0] == '+') {
4179 uint64_t u;
4180
4181 if (safe_atou64(t + 1, &u) < 0)
4182 return -EINVAL;
4183
4184 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4185 } else {
4186 char *e = NULL;
4187 long hour, minute;
4188 struct tm tm;
4189 time_t s;
4190 usec_t n;
4191
4192 errno = 0;
4193 hour = strtol(t, &e, 10);
4194 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4195 return -EINVAL;
4196
4197 minute = strtol(e+1, &e, 10);
4198 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4199 return -EINVAL;
4200
4201 n = now(CLOCK_REALTIME);
08e4b1c5
LP		 4202 s = (time_t) (n / USEC_PER_SEC);
4203
4204 zero(tm);
f6144808
LP		 4205 assert_se(localtime_r(&s, &tm));
4206
4207 tm.tm_hour = (int) hour;
4208 tm.tm_min = (int) minute;
08e4b1c5 4209 tm.tm_sec = 0;
f6144808
LP		 4210
4211 assert_se(s = mktime(&tm));
4212
4213 *_u = (usec_t) s * USEC_PER_SEC;
4214
4215 while (*_u <= n)
4216 *_u += USEC_PER_DAY;
4217 }
4218
4219 return 0;
4220}
4221
e4b61340
LP		 4222static int shutdown_parse_argv(int argc, char *argv[]) {
4223
4224 enum {
4225 ARG_HELP = 0x100,
514f4ef5 4226 ARG_NO_WALL
e4b61340
LP		 4227 };
4228
4229 static const struct option options[] = {
4230 { "help", no_argument, NULL, ARG_HELP },
4231 { "halt", no_argument, NULL, 'H' },
4232 { "poweroff", no_argument, NULL, 'P' },
4233 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4234 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4235 { NULL, 0, NULL, 0 }
4236 };
4237
f6144808 4238 int c, r;
e4b61340
LP		 4239
4240 assert(argc >= 0);
4241 assert(argv);
4242
f6144808 4243 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
e4b61340
LP		 4244 switch (c) {
4245
4246 case ARG_HELP:
4247 shutdown_help();
4248 return 0;
4249
4250 case 'H':
4251 arg_action = ACTION_HALT;
4252 break;
4253
4254 case 'P':
4255 arg_action = ACTION_POWEROFF;
4256 break;
4257
4258 case 'r':
4259 arg_action = ACTION_REBOOT;
4260 break;
4261
4262 case 'h':
4263 if (arg_action != ACTION_HALT)
4264 arg_action = ACTION_POWEROFF;
4265 break;
4266
4267 case 'k':
4268 arg_dry = true;
4269 break;
4270
514f4ef5
LP		 4271 case ARG_NO_WALL:
4272 arg_no_wall = true;
4273 break;
4274
e4b61340
LP		 4275 case 't':
4276 case 'a':
4277 /* Compatibility nops */
4278 break;
4279
f6144808
LP		 4280 case 'c':
4281 arg_action = ACTION_CANCEL_SHUTDOWN;
4282 break;
4283
e4b61340
LP		 4284 case '?':
4285 return -EINVAL;
4286
4287 default:
4288 log_error("Unknown option code %c", c);
4289 return -EINVAL;
4290 }
4291 }
4292
6b5ad000 4293 if (argc > optind) {
f6144808
LP		 4294 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4295 log_error("Failed to parse time specification: %s", argv[optind]);
4296 return r;
4297 }
6b5ad000 4298 } else
08e4b1c5 4299 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
442b9094 4300
f6144808 4301 /* We skip the time argument */
e4b61340
LP		 4302 if (argc > optind + 1)
4303 arg_wall = argv + optind + 1;
4304
4305 optind = argc;
4306
4307 return 1;
e4b61340
LP		 4308}
4309
4310static int telinit_parse_argv(int argc, char *argv[]) {
4311
4312 enum {
4313 ARG_HELP = 0x100,
514f4ef5 4314 ARG_NO_WALL
e4b61340
LP		 4315 };
4316
4317 static const struct option options[] = {
4318 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4319 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4320 { NULL, 0, NULL, 0 }
4321 };
4322
4323 static const struct {
4324 char from;
4325 enum action to;
4326 } table[] = {
4327 { '0', ACTION_POWEROFF },
4328 { '6', ACTION_REBOOT },
ef2f1067 4329 { '1', ACTION_RESCUE },
e4b61340
LP		 4330 { '2', ACTION_RUNLEVEL2 },
4331 { '3', ACTION_RUNLEVEL3 },
4332 { '4', ACTION_RUNLEVEL4 },
4333 { '5', ACTION_RUNLEVEL5 },
4334 { 's', ACTION_RESCUE },
4335 { 'S', ACTION_RESCUE },
4336 { 'q', ACTION_RELOAD },
4337 { 'Q', ACTION_RELOAD },
4338 { 'u', ACTION_REEXEC },
4339 { 'U', ACTION_REEXEC }
4340 };
4341
4342 unsigned i;
4343 int c;
4344
4345 assert(argc >= 0);
4346 assert(argv);
4347
4348 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4349 switch (c) {
4350
4351 case ARG_HELP:
4352 telinit_help();
4353 return 0;
4354
514f4ef5
LP		 4355 case ARG_NO_WALL:
4356 arg_no_wall = true;
4357 break;
4358
e4b61340
LP		 4359 case '?':
4360 return -EINVAL;
4361
4362 default:
4363 log_error("Unknown option code %c", c);
4364 return -EINVAL;
4365 }
4366 }
4367
4368 if (optind >= argc) {
2f02ce40 4369 telinit_help();
e4b61340
LP		 4370 return -EINVAL;
4371 }
4372
4373 if (optind + 1 < argc) {
4374 log_error("Too many arguments.");
4375 return -EINVAL;
4376 }
4377
4378 if (strlen(argv[optind]) != 1) {
4379 log_error("Expected single character argument.");
4380 return -EINVAL;
4381 }
4382
4383 for (i = 0; i < ELEMENTSOF(table); i++)
4384 if (table[i].from == argv[optind][0])
4385 break;
4386
4387 if (i >= ELEMENTSOF(table)) {
4388 log_error("Unknown command %s.", argv[optind]);
4389 return -EINVAL;
4390 }
4391
4392 arg_action = table[i].to;
4393
4394 optind ++;
4395
4396 return 1;
4397}
4398
4399static int runlevel_parse_argv(int argc, char *argv[]) {
4400
4401 enum {
4402 ARG_HELP = 0x100,
4403 };
4404
4405 static const struct option options[] = {
4406 { "help", no_argument, NULL, ARG_HELP },
4407 { NULL, 0, NULL, 0 }
4408 };
4409
4410 int c;
4411
4412 assert(argc >= 0);
4413 assert(argv);
4414
4415 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4416 switch (c) {
4417
4418 case ARG_HELP:
4419 runlevel_help();
4420 return 0;
4421
4422 case '?':
4423 return -EINVAL;
4424
4425 default:
4426 log_error("Unknown option code %c", c);
4427 return -EINVAL;
4428 }
4429 }
4430
4431 if (optind < argc) {
4432 log_error("Too many arguments.");
4433 return -EINVAL;
4434 }
4435
4436 return 1;
4437}
4438
4439static int parse_argv(int argc, char *argv[]) {
4440 assert(argc >= 0);
4441 assert(argv);
4442
4443 if (program_invocation_short_name) {
4444
4445 if (strstr(program_invocation_short_name, "halt")) {
4446 arg_action = ACTION_HALT;
4447 return halt_parse_argv(argc, argv);
4448 } else if (strstr(program_invocation_short_name, "poweroff")) {
4449 arg_action = ACTION_POWEROFF;
4450 return halt_parse_argv(argc, argv);
4451 } else if (strstr(program_invocation_short_name, "reboot")) {
4452 arg_action = ACTION_REBOOT;
4453 return halt_parse_argv(argc, argv);
4454 } else if (strstr(program_invocation_short_name, "shutdown")) {
4455 arg_action = ACTION_POWEROFF;
4456 return shutdown_parse_argv(argc, argv);
4457 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4458
4459 if (sd_booted() > 0) {
4460 arg_action = ACTION_INVALID;
4461 return telinit_parse_argv(argc, argv);
4462 } else {
4463 /* Hmm, so some other init system is
4464 * running, we need to forward this
4465 * request to it. For now we simply
4466 * guess that it is Upstart. */
4467
4468 execv("/lib/upstart/telinit", argv);
4469
4470 log_error("Couldn't find an alternative telinit implementation to spawn.");
4471 return -EIO;
4472 }
4473
e4b61340
LP		 4474 } else if (strstr(program_invocation_short_name, "runlevel")) {
4475 arg_action = ACTION_RUNLEVEL;
4476 return runlevel_parse_argv(argc, argv);
4477 }
4478 }
4479
4480 arg_action = ACTION_SYSTEMCTL;
4481 return systemctl_parse_argv(argc, argv);
4482}
4483
d55ae9e6 4484static int action_to_runlevel(void) {
eb22ac37
LP		 4485
4486 static const char table[_ACTION_MAX] = {
4487 [ACTION_HALT] = '0',
4488 [ACTION_POWEROFF] = '0',
4489 [ACTION_REBOOT] = '6',
4490 [ACTION_RUNLEVEL2] = '2',
4491 [ACTION_RUNLEVEL3] = '3',
4492 [ACTION_RUNLEVEL4] = '4',
4493 [ACTION_RUNLEVEL5] = '5',
4494 [ACTION_RESCUE] = '1'
4495 };
4496
d55ae9e6
LP		 4497 assert(arg_action < _ACTION_MAX);
4498
4499 return table[arg_action];
4500}
4501
f1c5860b 4502static int talk_upstart(void) {
d55ae9e6
LP		 4503 DBusMessage *m = NULL, *reply = NULL;
4504 DBusError error;
4505 int previous, rl, r;
4506 char
4507 env1_buf[] = "RUNLEVEL=X",
4508 env2_buf[] = "PREVLEVEL=X";
4509 char *env1 = env1_buf, *env2 = env2_buf;
4510 const char *emit = "runlevel";
4511 dbus_bool_t b_false = FALSE;
4512 DBusMessageIter iter, sub;
f1c5860b 4513 DBusConnection *bus;
d55ae9e6
LP		 4514
4515 dbus_error_init(&error);
4516
4517 if (!(rl = action_to_runlevel()))
4518 return 0;
4519
4520 if (utmp_get_runlevel(&previous, NULL) < 0)
4521 previous = 'N';
4522
b574246b 4523 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4524 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4525 r = 0;
4526 goto finish;
4527 }
4528
4cf5d675 4529 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
f1c5860b
LP		 4530 r = -EIO;
4531 goto finish;
4532 }
4533
4534 if ((r = bus_check_peercred(bus)) < 0) {
4535 log_error("Failed to verify owner of bus.");
4536 goto finish;
4537 }
4538
d55ae9e6
LP		 4539 if (!(m = dbus_message_new_method_call(
4540 "com.ubuntu.Upstart",
4541 "/com/ubuntu/Upstart",
4542 "com.ubuntu.Upstart0_6",
4543 "EmitEvent"))) {
4544
4545 log_error("Could not allocate message.");
f1c5860b
LP		 4546 r = -ENOMEM;
4547 goto finish;
d55ae9e6
LP		 4548 }
4549
4550 dbus_message_iter_init_append(m, &iter);
4551
4552 env1_buf[sizeof(env1_buf)-2] = rl;
4553 env2_buf[sizeof(env2_buf)-2] = previous;
4554
4555 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4556 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4557 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4558 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4559 !dbus_message_iter_close_container(&iter, &sub) ||
4560 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4561 log_error("Could not append arguments to message.");
4562 r = -ENOMEM;
4563 goto finish;
4564 }
4565
4566 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4567
4568 if (error_is_no_service(&error)) {
4569 r = 0;
4570 goto finish;
4571 }
4572
4cf5d675 4573 log_error("Failed to issue method call: %s", bus_error_message(&error));
d55ae9e6
LP		 4574 r = -EIO;
4575 goto finish;
4576 }
4577
4578 r = 1;
4579
4580finish:
4581 if (m)
4582 dbus_message_unref(m);
4583
4584 if (reply)
4585 dbus_message_unref(reply);
4586
b574246b
LP		 4587 if (bus) {
4588 dbus_connection_close(bus);
f1c5860b 4589 dbus_connection_unref(bus);
b574246b 4590 }
f1c5860b 4591
d55ae9e6
LP		 4592 dbus_error_free(&error);
4593
4594 return r;
4595}
4596
4597static int talk_initctl(void) {
eb22ac37
LP		 4598 struct init_request request;
4599 int r, fd;
d55ae9e6 4600 char rl;
eb22ac37 4601
d55ae9e6 4602 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4603 return 0;
4604
4605 zero(request);
4606 request.magic = INIT_MAGIC;
4607 request.sleeptime = 0;
4608 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4609 request.runlevel = rl;
4610
4611 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4612
4613 if (errno == ENOENT)
4614 return 0;
eb22ac37 4615
d55ae9e6 4616 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4617 return -errno;
d55ae9e6 4618 }
eb22ac37 4619
d55ae9e6 4620 errno = 0;
eb22ac37
LP		 4621 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4622 close_nointr_nofail(fd);
4623
d55ae9e6
LP		 4624 if (r < 0) {
4625 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 4626 return errno ? -errno : -EIO;
d55ae9e6 4627 }
eb22ac37
LP		 4628
4629 return 1;
e4b61340
LP		 4630}
4631
ee5762e3 4632static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 4633
7e4249b9
LP		 4634 static const struct {
4635 const char* verb;
4636 const enum {
4637 MORE,
4638 LESS,
4639 EQUAL
4640 } argc_cmp;
4641 const int argc;
4642 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4643 } verbs[] = {
ee5762e3
LP		 4644 { "list-units", LESS, 1, list_units },
4645 { "list-jobs", EQUAL, 1, list_jobs },
4646 { "clear-jobs", EQUAL, 1, daemon_reload },
4647 { "load", MORE, 2, load_unit },
4648 { "cancel", MORE, 2, cancel_job },
4649 { "start", MORE, 2, start_unit },
4650 { "stop", MORE, 2, start_unit },
4651 { "reload", MORE, 2, start_unit },
4652 { "restart", MORE, 2, start_unit },
4653 { "try-restart", MORE, 2, start_unit },
4654 { "reload-or-restart", MORE, 2, start_unit },
4655 { "reload-or-try-restart", MORE, 2, start_unit },
4656 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4657 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4658 { "isolate", EQUAL, 2, start_unit },
4659 { "is-active", MORE, 2, check_unit },
4660 { "check", MORE, 2, check_unit },
4661 { "show", MORE, 1, show },
4662 { "status", MORE, 2, show },
4663 { "monitor", EQUAL, 1, monitor },
4664 { "dump", EQUAL, 1, dump },
4665 { "dot", EQUAL, 1, dot },
4666 { "snapshot", LESS, 2, snapshot },
4667 { "delete", MORE, 2, delete_snapshot },
4668 { "daemon-reload", EQUAL, 1, daemon_reload },
4669 { "daemon-reexec", EQUAL, 1, daemon_reload },
4670 { "daemon-exit", EQUAL, 1, daemon_reload },
4671 { "show-environment", EQUAL, 1, show_enviroment },
4672 { "set-environment", MORE, 2, set_environment },
4673 { "unset-environment", MORE, 2, set_environment },
4674 { "halt", EQUAL, 1, start_special },
4675 { "poweroff", EQUAL, 1, start_special },
4676 { "reboot", EQUAL, 1, start_special },
4677 { "default", EQUAL, 1, start_special },
4678 { "rescue", EQUAL, 1, start_special },
4679 { "emergency", EQUAL, 1, start_special },
fdf20a31 4680 { "reset-failed", MORE, 1, reset_failed },
ee5762e3
LP		 4681 { "enable", MORE, 2, enable_unit },
4682 { "disable", MORE, 2, enable_unit },
4683 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 4684 };
4685
e4b61340 4686 int left;
7e4249b9 4687 unsigned i;
7e4249b9 4688
e4b61340
LP		 4689 assert(argc >= 0);
4690 assert(argv);
ee5762e3 4691 assert(error);
7e4249b9
LP		 4692
4693 left = argc - optind;
4694
4695 if (left <= 0)
4696 /* Special rule: no arguments means "list-units" */
4697 i = 0;
4698 else {
0183528f
LP		 4699 if (streq(argv[optind], "help")) {
4700 systemctl_help();
4701 return 0;
4702 }
4703
7e4249b9
LP		 4704 for (i = 0; i < ELEMENTSOF(verbs); i++)
4705 if (streq(argv[optind], verbs[i].verb))
4706 break;
4707
4708 if (i >= ELEMENTSOF(verbs)) {
4709 log_error("Unknown operation %s", argv[optind]);
e4b61340 4710 return -EINVAL;
7e4249b9
LP		 4711 }
4712 }
4713
4714 switch (verbs[i].argc_cmp) {
4715
4716 case EQUAL:
4717 if (left != verbs[i].argc) {
4718 log_error("Invalid number of arguments.");
e4b61340 4719 return -EINVAL;
7e4249b9
LP		 4720 }
4721
4722 break;
4723
4724 case MORE:
4725 if (left < verbs[i].argc) {
4726 log_error("Too few arguments.");
e4b61340 4727 return -EINVAL;
7e4249b9
LP		 4728 }
4729
4730 break;
4731
4732 case LESS:
4733 if (left > verbs[i].argc) {
4734 log_error("Too many arguments.");
e4b61340 4735 return -EINVAL;
7e4249b9
LP		 4736 }
4737
4738 break;
4739
4740 default:
4741 assert_not_reached("Unknown comparison operator.");
4742 }
4743
ee5762e3
LP		 4744 /* Require a bus connection for all operations but
4745 * enable/disable */
4746 if (!streq(verbs[i].verb, "enable") &&
4747 !streq(verbs[i].verb, "disable") &&
4748 !bus) {
4749 log_error("Failed to get D-Bus connection: %s", error->message);
4750 return -EIO;
4751 }
4752
e4b61340
LP		 4753 return verbs[i].dispatch(bus, argv + optind, left);
4754}
4755
9be9828c 4756static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
f6144808
LP		 4757 int fd = -1;
4758 struct msghdr msghdr;
4759 struct iovec iovec;
4760 union sockaddr_union sockaddr;
4761 struct ucred *ucred;
4762 union {
4763 struct cmsghdr cmsghdr;
4764 uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
4765 } control;
4766 struct shutdownd_command c;
4767
4768 zero(c);
4769 c.elapse = t;
4770 c.mode = mode;
9be9828c
LP		 4771 c.warn_wall = warn;
4772
4773 if (message)
4774 strncpy(c.wall_message, message, sizeof(c.wall_message));
f6144808
LP		 4775
4776 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
4777 return -errno;
4778
4779 zero(sockaddr);
4780 sockaddr.sa.sa_family = AF_UNIX;
4781 sockaddr.un.sun_path[0] = 0;
4782 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
4783
4784 zero(iovec);
4785 iovec.iov_base = (char*) &c;
4786 iovec.iov_len = sizeof(c);
4787
4788 zero(control);
4789 control.cmsghdr.cmsg_level = SOL_SOCKET;
4790 control.cmsghdr.cmsg_type = SCM_CREDENTIALS;
4791 control.cmsghdr.cmsg_len = CMSG_LEN(sizeof(struct ucred));
4792
4793 ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
4794 ucred->pid = getpid();
4795 ucred->uid = getuid();
4796 ucred->gid = getgid();
4797
4798 zero(msghdr);
4799 msghdr.msg_name = &sockaddr;
4800 msghdr.msg_namelen = sizeof(sa_family_t) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
4801
4802 msghdr.msg_iov = &iovec;
4803 msghdr.msg_iovlen = 1;
4804 msghdr.msg_control = &control;
4805 msghdr.msg_controllen = control.cmsghdr.cmsg_len;
4806
4807 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
4808 close_nointr_nofail(fd);
4809 return -errno;
4810 }
4811
4812 close_nointr_nofail(fd);
4813 return 0;
4814}
4815
e4b61340 4816static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4817
4818 if (bus) {
4819 /* First, try systemd via D-Bus. */
e364ad06 4820 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 4821 return 0;
4822 }
4823
4824 /* Nothing else worked, so let's try signals */
4825 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4826
4827 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4828 log_error("kill() failed: %m");
4829 return -errno;
4830 }
4831
4832 return 0;
4833}
4834
4835static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4836
4837 if (bus) {
4838 /* First, try systemd via D-Bus. */
e364ad06 4839 if (start_unit(bus, NULL, 0) > 0)
983d9c90 4840 goto done;
e4b61340
LP		 4841 }
4842
ec7f7f20
LP		 4843 /* Hmm, talking to systemd via D-Bus didn't work. Then
4844 * let's try to talk to Upstart via D-Bus. */
e364ad06 4845 if (talk_upstart() > 0)
ec7f7f20
LP		 4846 goto done;
4847
e4b61340
LP		 4848 /* Nothing else worked, so let's try
4849 * /dev/initctl */
fbc43921 4850 if (talk_initctl() > 0)
983d9c90 4851 goto done;
d55ae9e6
LP		 4852
4853 log_error("Failed to talk to init daemon.");
4854 return -EIO;
983d9c90
LP		 4855
4856done:
4857 warn_wall(arg_action);
4858 return 0;
e4b61340
LP		 4859}
4860
4861static int halt_main(DBusConnection *bus) {
4862 int r;
4863
bc8c2f5c 4864 if (geteuid() != 0) {
cc8a7a61 4865 log_error("Must be root.");
bc8c2f5c
LP		 4866 return -EPERM;
4867 }
4868
f6144808 4869 if (arg_when > 0) {
9be9828c 4870 char *m;
08e4b1c5 4871 char date[FORMAT_TIMESTAMP_MAX];
9be9828c
LP		 4872
4873 m = strv_join(arg_wall, " ");
4874 r = send_shutdownd(arg_when,
4875 arg_action == ACTION_HALT ? 'H' :
4876 arg_action == ACTION_POWEROFF ? 'P' :
4877 'r',
4878 !arg_no_wall,
4879 m);
4880 free(m);
4881
4882 if (r < 0)
f6144808 4883 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
08e4b1c5
LP		 4884 else {
4885 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
4886 format_timestamp(date, sizeof(date), arg_when));
f6144808 4887 return 0;
08e4b1c5 4888 }
f6144808
LP		 4889 }
4890
d47b555b 4891 if (!arg_dry && !arg_immediate)
e4b61340
LP		 4892 return start_with_fallback(bus);
4893
d90e1a30
LP		 4894 if (!arg_no_wtmp) {
4895 if (sd_booted() > 0)
4896 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
4897 else if ((r = utmp_put_shutdown(0)) < 0)
e4b61340 4898 log_warning("Failed to write utmp record: %s", strerror(-r));
d90e1a30 4899 }
e4b61340
LP		 4900
4901 if (!arg_no_sync)
4902 sync();
4903
4904 if (arg_dry)
4905 return 0;
4906
4907 /* Make sure C-A-D is handled by the kernel from this
4908 * point on... */
4909 reboot(RB_ENABLE_CAD);
4910
4911 switch (arg_action) {
4912
4913 case ACTION_HALT:
3059b1c1 4914 log_info("Halting.");
e4b61340
LP		 4915 reboot(RB_HALT_SYSTEM);
4916 break;
4917
4918 case ACTION_POWEROFF:
3059b1c1 4919 log_info("Powering off.");
e4b61340
LP		 4920 reboot(RB_POWER_OFF);
4921 break;
4922
4923 case ACTION_REBOOT:
3059b1c1 4924 log_info("Rebooting.");
e4b61340
LP		 4925 reboot(RB_AUTOBOOT);
4926 break;
4927
4928 default:
4929 assert_not_reached("Unknown halt action.");
4930 }
4931
4932 /* We should never reach this. */
4933 return -ENOSYS;
4934}
4935
4936static int runlevel_main(void) {
4937 int r, runlevel, previous;
4938
4939 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 4940 printf("unknown\n");
e4b61340
LP		 4941 return r;
4942 }
4943
4944 printf("%c %c\n",
4945 previous <= 0 ? 'N' : previous,
4946 runlevel <= 0 ? 'N' : runlevel);
4947
4948 return 0;
4949}
4950
4951int main(int argc, char*argv[]) {
4952 int r, retval = 1;
4953 DBusConnection *bus = NULL;
4954 DBusError error;
4955
4956 dbus_error_init(&error);
4957
4958 log_parse_environment();
2396fb04 4959 log_open();
e4b61340
LP		 4960
4961 if ((r = parse_argv(argc, argv)) < 0)
4962 goto finish;
4963 else if (r == 0) {
4964 retval = 0;
7e4249b9
LP		 4965 goto finish;
4966 }
4967
e4b61340
LP		 4968 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
4969 * let's shortcut this */
4970 if (arg_action == ACTION_RUNLEVEL) {
4971 retval = runlevel_main() < 0;
4972 goto finish;
4973 }
4974
f4579ce7 4975 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 4976
4977 switch (arg_action) {
4978
4979 case ACTION_SYSTEMCTL: {
ee5762e3 4980 retval = systemctl_main(bus, argc, argv, &error) < 0;
e4b61340
LP		 4981 break;
4982 }
4983
4984 case ACTION_HALT:
4985 case ACTION_POWEROFF:
4986 case ACTION_REBOOT:
4987 retval = halt_main(bus) < 0;
4988 break;
4989
e4b61340
LP		 4990 case ACTION_RUNLEVEL2:
4991 case ACTION_RUNLEVEL3:
4992 case ACTION_RUNLEVEL4:
4993 case ACTION_RUNLEVEL5:
4994 case ACTION_RESCUE:
514f4ef5 4995 case ACTION_EMERGENCY:
eb22ac37 4996 case ACTION_DEFAULT:
e4b61340
LP		 4997 retval = start_with_fallback(bus) < 0;
4998 break;
7e4249b9 4999
e4b61340
LP		 5000 case ACTION_RELOAD:
5001 case ACTION_REEXEC:
5002 retval = reload_with_fallback(bus) < 0;
5003 break;
5004
f6144808 5005 case ACTION_CANCEL_SHUTDOWN:
9be9828c 5006 retval = send_shutdownd(0, 0, false, NULL) < 0;
f6144808
LP		 5007 break;
5008
eb22ac37
LP		 5009 case ACTION_INVALID:
5010 case ACTION_RUNLEVEL:
e4b61340
LP		 5011 default:
5012 assert_not_reached("Unknown action");
5013 }
7e4249b9
LP		 5014
5015finish:
5016
b574246b
LP		 5017 if (bus) {
5018 dbus_connection_close(bus);
7e4249b9 5019 dbus_connection_unref(bus);
b574246b 5020 }
7e4249b9 5021
e4b61340
LP		 5022 dbus_error_free(&error);
5023
7e4249b9
LP		 5024 dbus_shutdown();
5025
ea4a240d
LP		 5026 strv_free(arg_property);
5027
7e4249b9
LP		 5028 return retval;
5029}
Unnamed repository; edit this file 'description' to name the repository.