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utmp: enable systemd-update-utmp by default
[thirdparty/systemd.git] / src / systemctl.c
CommitLineData
7e4249b9
LP		 1/*-*- Mode: C; c-basic-offset: 8 -*-*/
2
3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
e4b61340 22#include <sys/reboot.h>
7e4249b9
LP		 23#include <stdio.h>
24#include <getopt.h>
25#include <stdbool.h>
26#include <string.h>
27#include <errno.h>
28#include <sys/ioctl.h>
29#include <termios.h>
30#include <unistd.h>
eb22ac37 31#include <fcntl.h>
f1c5860b 32#include <sys/socket.h>
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"
7e4249b9
LP		 52
53static const char *arg_type = NULL;
ea4a240d 54static char **arg_property = NULL;
7e4249b9 55static bool arg_all = false;
90d473a1 56static bool arg_fail = false;
7e4249b9 57static bool arg_session = false;
ee5762e3 58static bool arg_global = false;
e4b61340 59static bool arg_immediate = false;
ee5762e3 60static bool arg_no_block = false;
e4b61340
LP		 61static bool arg_no_wtmp = false;
62static bool arg_no_sync = false;
514f4ef5 63static bool arg_no_wall = false;
ee5762e3 64static bool arg_no_reload = false;
e4b61340 65static bool arg_dry = false;
0183528f 66static bool arg_quiet = false;
ee5762e3
LP		 67static bool arg_full = false;
68static bool arg_force = false;
69static bool arg_defaults = false;
e4b61340 70static char **arg_wall = NULL;
4445a875 71static enum action {
e4b61340
LP		 72 ACTION_INVALID,
73 ACTION_SYSTEMCTL,
74 ACTION_HALT,
75 ACTION_POWEROFF,
76 ACTION_REBOOT,
e4b61340
LP		 77 ACTION_RUNLEVEL2,
78 ACTION_RUNLEVEL3,
79 ACTION_RUNLEVEL4,
80 ACTION_RUNLEVEL5,
81 ACTION_RESCUE,
514f4ef5
LP		 82 ACTION_EMERGENCY,
83 ACTION_DEFAULT,
e4b61340
LP		 84 ACTION_RELOAD,
85 ACTION_REEXEC,
86 ACTION_RUNLEVEL,
87 _ACTION_MAX
88} arg_action = ACTION_SYSTEMCTL;
4445a875
LP		 89static enum dot {
90 DOT_ALL,
91 DOT_ORDER,
92 DOT_REQUIRE
93} arg_dot = DOT_ALL;
e4b61340 94
f4579ce7
LP		 95static bool private_bus = false;
96
ee5762e3
LP		 97static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
98
2cc59dbf
LP		 99static const char *ansi_highlight(bool b) {
100 static int t = -1;
101
102 if (_unlikely_(t < 0))
103 t = isatty(STDOUT_FILENO) > 0;
104
105 if (!t)
106 return "";
107
108 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
109}
110
e4b61340
LP		 111static bool error_is_no_service(DBusError *error) {
112
514f4ef5
LP		 113 assert(error);
114
e4b61340
LP		 115 if (!dbus_error_is_set(error))
116 return false;
117
118 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
119 return true;
120
121 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
122 return true;
123
124 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
125}
7e4249b9
LP		 126
127static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
128
514f4ef5
LP		 129 assert(iter);
130 assert(data);
131
7e4249b9
LP		 132 if (dbus_message_iter_get_arg_type(iter) != type)
133 return -EIO;
134
135 dbus_message_iter_get_basic(iter, data);
136
137 if (!dbus_message_iter_next(iter) != !next)
138 return -EIO;
139
140 return 0;
141}
142
514f4ef5 143static void warn_wall(enum action action) {
ef2f1067 144 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 145 [ACTION_HALT] = "The system is going down for system halt NOW!",
146 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
147 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
148 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
149 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 150 };
151
514f4ef5
LP		 152 if (arg_no_wall)
153 return;
154
e4a9373f
LP		 155 if (arg_wall) {
156 char *p;
157
158 if (!(p = strv_join(arg_wall, " "))) {
159 log_error("Failed to join strings.");
160 return;
161 }
162
163 if (*p) {
164 utmp_wall(p);
165 free(p);
166 return;
167 }
168
169 free(p);
170 }
171
514f4ef5 172 if (!table[action])
ef2f1067
LP		 173 return;
174
514f4ef5 175 utmp_wall(table[action]);
ef2f1067
LP		 176}
177
7e4249b9
LP		 178static int list_units(DBusConnection *bus, char **args, unsigned n) {
179 DBusMessage *m = NULL, *reply = NULL;
180 DBusError error;
181 int r;
182 DBusMessageIter iter, sub, sub2;
183 unsigned k = 0;
184
185 dbus_error_init(&error);
186
514f4ef5
LP		 187 assert(bus);
188
7e4249b9
LP		 189 if (!(m = dbus_message_new_method_call(
190 "org.freedesktop.systemd1",
191 "/org/freedesktop/systemd1",
192 "org.freedesktop.systemd1.Manager",
193 "ListUnits"))) {
194 log_error("Could not allocate message.");
195 return -ENOMEM;
196 }
197
198 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
199 log_error("Failed to issue method call: %s", error.message);
200 r = -EIO;
201 goto finish;
202 }
203
204 if (!dbus_message_iter_init(reply, &iter) ||
205 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
206 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
207 log_error("Failed to parse reply.");
208 r = -EIO;
209 goto finish;
210 }
211
212 dbus_message_iter_recurse(&iter, &sub);
213
d0642824
LP		 214 if (isatty(STDOUT_FILENO))
215 printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION");
7e4249b9
LP		 216
217 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
8fe914ec 218 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path, *job_type, *job_path, *dot;
7e4249b9
LP		 219 uint32_t job_id;
220
221 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
222 log_error("Failed to parse reply.");
223 r = -EIO;
224 goto finish;
225 }
226
227 dbus_message_iter_recurse(&sub, &sub2);
228
229 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
230 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
231 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
232 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
233 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
8fe914ec 234 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875 235 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0 ||
7e4249b9
LP		 236 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &job_id, true) < 0 ||
237 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &job_type, true) < 0 ||
238 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, false) < 0) {
239 log_error("Failed to parse reply.");
240 r = -EIO;
241 goto finish;
242 }
243
244 if ((!arg_type || ((dot = strrchr(id, '.')) &&
245 streq(dot+1, arg_type))) &&
8fe914ec
LP		 246 (arg_all || !(streq(active_state, "inactive") || following[0]) || job_id > 0)) {
247 char *e;
7e4249b9
LP		 248 int a = 0, b = 0;
249
e0376b17 250 if (streq(active_state, "maintenance"))
2cc59dbf 251 fputs(ansi_highlight(true), stdout);
e0376b17 252
8fe914ec
LP		 253 e = arg_full ? NULL : ellipsize(id, 45, 33);
254 printf("%-45s %-6s %-12s %-12s%n", e ? e : id, load_state, active_state, sub_state, &a);
255 free(e);
7e4249b9
LP		 256
257 if (job_id != 0)
0ff3dea7 258 printf(" => %-12s%n", job_type, &b);
7e4249b9 259 else
e0376b17 260 b = 1 + 15;
7e4249b9
LP		 261
262 if (a + b + 2 < columns()) {
263 if (job_id == 0)
264 printf(" ");
265
e0376b17 266 printf(" %.*s", columns() - a - b - 2, description);
7e4249b9
LP		 267 }
268
e0376b17 269 if (streq(active_state, "maintenance"))
2cc59dbf 270 fputs(ansi_highlight(false), stdout);
e0376b17 271
7e4249b9
LP		 272 fputs("\n", stdout);
273 k++;
274 }
275
276 dbus_message_iter_next(&sub);
277 }
278
d0642824 279 if (isatty(STDOUT_FILENO)) {
0ff3dea7 280
d0642824
LP		 281 printf("\nLOAD = Load State, reflects whether the unit configuration was properly loaded.\n"
282 "ACTIVE = Active State, the high-level unit activation state, i.e. generalization of the substate.\n"
283 "SUB = Substate, the low-level unit activation state, possible values depend on unit type.\n"
284 "JOB = Job, shows pending jobs for the unit.\n");
285
286 if (arg_all)
287 printf("\n%u units listed.\n", k);
288 else
289 printf("\n%u units listed. Pass --all to see inactive units, too.\n", k);
290 }
4445a875
LP		 291
292 r = 0;
293
294finish:
295 if (m)
296 dbus_message_unref(m);
297
298 if (reply)
299 dbus_message_unref(reply);
300
301 dbus_error_free(&error);
302
303 return r;
304}
305
306static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
307 static const char * const colors[] = {
308 "Requires", "[color=\"black\"]",
309 "RequiresOverridable", "[color=\"black\"]",
310 "Requisite", "[color=\"darkblue\"]",
311 "RequisiteOverridable", "[color=\"darkblue\"]",
312 "Wants", "[color=\"darkgrey\"]",
313 "Conflicts", "[color=\"red\"]",
69dd2852 314 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 315 "After", "[color=\"green\"]"
316 };
317
318 const char *c = NULL;
319 unsigned i;
320
321 assert(name);
322 assert(prop);
323 assert(iter);
324
325 for (i = 0; i < ELEMENTSOF(colors); i += 2)
326 if (streq(colors[i], prop)) {
327 c = colors[i+1];
328 break;
329 }
330
331 if (!c)
332 return 0;
333
334 if (arg_dot != DOT_ALL)
335 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
336 return 0;
337
338 switch (dbus_message_iter_get_arg_type(iter)) {
339
340 case DBUS_TYPE_ARRAY:
341
342 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
343 DBusMessageIter sub;
344
345 dbus_message_iter_recurse(iter, &sub);
346
347 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
348 const char *s;
349
350 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
351 dbus_message_iter_get_basic(&sub, &s);
352 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
353
354 dbus_message_iter_next(&sub);
355 }
356
357 return 0;
358 }
359 }
360
361 return 0;
362}
363
364static int dot_one(DBusConnection *bus, const char *name, const char *path) {
365 DBusMessage *m = NULL, *reply = NULL;
366 const char *interface = "org.freedesktop.systemd1.Unit";
367 int r;
368 DBusError error;
369 DBusMessageIter iter, sub, sub2, sub3;
370
371 assert(bus);
372 assert(path);
373
374 dbus_error_init(&error);
375
376 if (!(m = dbus_message_new_method_call(
377 "org.freedesktop.systemd1",
378 path,
379 "org.freedesktop.DBus.Properties",
380 "GetAll"))) {
381 log_error("Could not allocate message.");
382 r = -ENOMEM;
383 goto finish;
384 }
385
386 if (!dbus_message_append_args(m,
387 DBUS_TYPE_STRING, &interface,
388 DBUS_TYPE_INVALID)) {
389 log_error("Could not append arguments to message.");
390 r = -ENOMEM;
391 goto finish;
392 }
393
394 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
395 log_error("Failed to issue method call: %s", error.message);
396 r = -EIO;
397 goto finish;
398 }
399
400 if (!dbus_message_iter_init(reply, &iter) ||
401 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
402 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
403 log_error("Failed to parse reply.");
404 r = -EIO;
405 goto finish;
406 }
407
408 dbus_message_iter_recurse(&iter, &sub);
409
410 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
411 const char *prop;
412
413 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
414 log_error("Failed to parse reply.");
415 r = -EIO;
416 goto finish;
417 }
418
419 dbus_message_iter_recurse(&sub, &sub2);
420
421 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
422 log_error("Failed to parse reply.");
423 r = -EIO;
424 goto finish;
425 }
426
427 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
428 log_error("Failed to parse reply.");
429 r = -EIO;
430 goto finish;
431 }
432
433 dbus_message_iter_recurse(&sub2, &sub3);
434
435 if (dot_one_property(name, prop, &sub3)) {
436 log_error("Failed to parse reply.");
437 r = -EIO;
438 goto finish;
439 }
440
441 dbus_message_iter_next(&sub);
442 }
443
444finish:
445 if (m)
446 dbus_message_unref(m);
447
448 if (reply)
449 dbus_message_unref(reply);
450
451 dbus_error_free(&error);
452
453 return r;
454}
455
456static int dot(DBusConnection *bus, char **args, unsigned n) {
457 DBusMessage *m = NULL, *reply = NULL;
458 DBusError error;
459 int r;
460 DBusMessageIter iter, sub, sub2;
461
462 dbus_error_init(&error);
463
464 assert(bus);
465
466 if (!(m = dbus_message_new_method_call(
467 "org.freedesktop.systemd1",
468 "/org/freedesktop/systemd1",
469 "org.freedesktop.systemd1.Manager",
470 "ListUnits"))) {
471 log_error("Could not allocate message.");
472 return -ENOMEM;
473 }
474
475 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
476 log_error("Failed to issue method call: %s", error.message);
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_STRUCT) {
484 log_error("Failed to parse reply.");
485 r = -EIO;
486 goto finish;
487 }
488
489 printf("digraph systemd {\n");
490
491 dbus_message_iter_recurse(&iter, &sub);
492 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 493 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 494
495 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
496 log_error("Failed to parse reply.");
497 r = -EIO;
498 goto finish;
499 }
500
501 dbus_message_iter_recurse(&sub, &sub2);
502
503 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
504 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
505 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
506 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
507 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 508 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 509 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
510 log_error("Failed to parse reply.");
511 r = -EIO;
512 goto finish;
513 }
514
515 if ((r = dot_one(bus, id, unit_path)) < 0)
516 goto finish;
517
518 /* printf("\t\"%s\";\n", id); */
519 dbus_message_iter_next(&sub);
520 }
521
522 printf("}\n");
523
524 log_info(" Color legend: black = Requires\n"
525 " dark blue = Requisite\n"
526 " dark grey = Wants\n"
527 " red = Conflicts\n"
528 " green = After\n");
529
530 if (isatty(fileno(stdout)))
531 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
532 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 533
534 r = 0;
535
536finish:
537 if (m)
538 dbus_message_unref(m);
539
540 if (reply)
541 dbus_message_unref(reply);
542
543 dbus_error_free(&error);
544
545 return r;
546}
547
548static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
549 DBusMessage *m = NULL, *reply = NULL;
550 DBusError error;
551 int r;
552 DBusMessageIter iter, sub, sub2;
553 unsigned k = 0;
554
555 dbus_error_init(&error);
556
514f4ef5
LP		 557 assert(bus);
558
7e4249b9
LP		 559 if (!(m = dbus_message_new_method_call(
560 "org.freedesktop.systemd1",
561 "/org/freedesktop/systemd1",
562 "org.freedesktop.systemd1.Manager",
563 "ListJobs"))) {
564 log_error("Could not allocate message.");
565 return -ENOMEM;
566 }
567
568 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
569 log_error("Failed to issue method call: %s", error.message);
570 r = -EIO;
571 goto finish;
572 }
573
574 if (!dbus_message_iter_init(reply, &iter) ||
575 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
576 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
577 log_error("Failed to parse reply.");
578 r = -EIO;
579 goto finish;
580 }
581
582 dbus_message_iter_recurse(&iter, &sub);
583
584 printf("%4s %-45s %-17s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
585
586 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
587 const char *name, *type, *state, *job_path, *unit_path;
588 uint32_t id;
8fe914ec 589 char *e;
7e4249b9
LP		 590
591 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
592 log_error("Failed to parse reply.");
593 r = -EIO;
594 goto finish;
595 }
596
597 dbus_message_iter_recurse(&sub, &sub2);
598
599 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
600 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
601 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
602 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
603 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
604 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
605 log_error("Failed to parse reply.");
606 r = -EIO;
607 goto finish;
608 }
609
8fe914ec
LP		 610 e = arg_full ? NULL : ellipsize(name, 45, 33);
611 printf("%4u %-45s %-17s %-7s\n", id, e ? e : name, type, state);
612 free(e);
613
7e4249b9
LP		 614 k++;
615
616 dbus_message_iter_next(&sub);
617 }
618
619 printf("\n%u jobs listed.\n", k);
620 r = 0;
621
622finish:
623 if (m)
624 dbus_message_unref(m);
625
626 if (reply)
627 dbus_message_unref(reply);
628
629 dbus_error_free(&error);
630
631 return r;
632}
633
634static int load_unit(DBusConnection *bus, char **args, unsigned n) {
635 DBusMessage *m = NULL, *reply = NULL;
636 DBusError error;
637 int r;
638 unsigned i;
639
640 dbus_error_init(&error);
641
514f4ef5
LP		 642 assert(bus);
643 assert(args);
644
7e4249b9
LP		 645 for (i = 1; i < n; i++) {
646
647 if (!(m = dbus_message_new_method_call(
648 "org.freedesktop.systemd1",
649 "/org/freedesktop/systemd1",
650 "org.freedesktop.systemd1.Manager",
651 "LoadUnit"))) {
652 log_error("Could not allocate message.");
653 r = -ENOMEM;
654 goto finish;
655 }
656
657 if (!dbus_message_append_args(m,
658 DBUS_TYPE_STRING, &args[i],
659 DBUS_TYPE_INVALID)) {
660 log_error("Could not append arguments to message.");
661 r = -ENOMEM;
662 goto finish;
663 }
664
665 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
666 log_error("Failed to issue method call: %s", error.message);
667 r = -EIO;
668 goto finish;
669 }
670
671 dbus_message_unref(m);
672 dbus_message_unref(reply);
673
674 m = reply = NULL;
675 }
676
677 r = 0;
678
679finish:
680 if (m)
681 dbus_message_unref(m);
682
683 if (reply)
684 dbus_message_unref(reply);
685
686 dbus_error_free(&error);
687
688 return r;
689}
690
691static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
692 DBusMessage *m = NULL, *reply = NULL;
693 DBusError error;
694 int r;
695 unsigned i;
696
697 dbus_error_init(&error);
698
514f4ef5
LP		 699 assert(bus);
700 assert(args);
701
ee5762e3
LP		 702 if (n <= 1)
703 return daemon_reload(bus, args, n);
704
7e4249b9
LP		 705 for (i = 1; i < n; i++) {
706 unsigned id;
707 const char *path;
708
709 if (!(m = dbus_message_new_method_call(
710 "org.freedesktop.systemd1",
711 "/org/freedesktop/systemd1",
712 "org.freedesktop.systemd1.Manager",
713 "GetJob"))) {
714 log_error("Could not allocate message.");
715 r = -ENOMEM;
716 goto finish;
717 }
718
719 if ((r = safe_atou(args[i], &id)) < 0) {
720 log_error("Failed to parse job id: %s", strerror(-r));
721 goto finish;
722 }
723
724 assert_cc(sizeof(uint32_t) == sizeof(id));
725 if (!dbus_message_append_args(m,
726 DBUS_TYPE_UINT32, &id,
727 DBUS_TYPE_INVALID)) {
728 log_error("Could not append arguments to message.");
729 r = -ENOMEM;
730 goto finish;
731 }
732
733 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
734 log_error("Failed to issue method call: %s", error.message);
735 r = -EIO;
736 goto finish;
737 }
738
739 if (!dbus_message_get_args(reply, &error,
740 DBUS_TYPE_OBJECT_PATH, &path,
741 DBUS_TYPE_INVALID)) {
742 log_error("Failed to parse reply: %s", error.message);
743 r = -EIO;
744 goto finish;
745 }
746
747 dbus_message_unref(m);
748 if (!(m = dbus_message_new_method_call(
749 "org.freedesktop.systemd1",
750 path,
751 "org.freedesktop.systemd1.Job",
752 "Cancel"))) {
753 log_error("Could not allocate message.");
754 r = -ENOMEM;
755 goto finish;
756 }
757
758 dbus_message_unref(reply);
759 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
760 log_error("Failed to issue method call: %s", error.message);
761 r = -EIO;
762 goto finish;
763 }
764
765 dbus_message_unref(m);
766 dbus_message_unref(reply);
767 m = reply = NULL;
768 }
769
770 r = 0;
771
772finish:
773 if (m)
774 dbus_message_unref(m);
775
776 if (reply)
777 dbus_message_unref(reply);
778
779 dbus_error_free(&error);
780
781 return r;
782}
783
ee5762e3 784static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
45fb0699
LP		 785 DBusMessage *m, *reply;
786 dbus_bool_t b = FALSE;
787 DBusMessageIter iter, sub;
788 const char
789 *interface = "org.freedesktop.systemd1.Unit",
790 *property = "NeedDaemonReload",
791 *path;
792
793 /* We ignore all errors here, since this is used to show a warning only */
794
795 if (!(m = dbus_message_new_method_call(
796 "org.freedesktop.systemd1",
797 "/org/freedesktop/systemd1",
798 "org.freedesktop.systemd1.Manager",
799 "GetUnit")))
800 goto finish;
801
802 if (!dbus_message_append_args(m,
803 DBUS_TYPE_STRING, &unit,
804 DBUS_TYPE_INVALID))
805 goto finish;
806
807 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
808 goto finish;
809
810 if (!dbus_message_get_args(reply, NULL,
811 DBUS_TYPE_OBJECT_PATH, &path,
812 DBUS_TYPE_INVALID))
813 goto finish;
814
815 dbus_message_unref(m);
816 if (!(m = dbus_message_new_method_call(
817 "org.freedesktop.systemd1",
818 path,
819 "org.freedesktop.DBus.Properties",
820 "Get")))
821 goto finish;
822
823 if (!dbus_message_append_args(m,
824 DBUS_TYPE_STRING, &interface,
825 DBUS_TYPE_STRING, &property,
826 DBUS_TYPE_INVALID)) {
827 goto finish;
828 }
829
830 dbus_message_unref(reply);
831 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
832 goto finish;
833
834 if (!dbus_message_iter_init(reply, &iter) ||
835 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
836 goto finish;
837
838 dbus_message_iter_recurse(&iter, &sub);
839
840 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
841 goto finish;
842
843 dbus_message_iter_get_basic(&sub, &b);
844
845finish:
846 if (m)
847 dbus_message_unref(m);
848
849 if (reply)
850 dbus_message_unref(reply);
851
852 return b;
853}
854
5e374895
LP		 855typedef struct WaitData {
856 Set *set;
857 bool failed;
858} WaitData;
859
7e4249b9
LP		 860static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
861 DBusError error;
5e374895 862 WaitData *d = data;
7e4249b9
LP		 863
864 assert(connection);
865 assert(message);
5e374895 866 assert(d);
7e4249b9
LP		 867
868 dbus_error_init(&error);
869
54165a39
LP		 870 log_debug("Got D-Bus request: %s.%s() on %s",
871 dbus_message_get_interface(message),
872 dbus_message_get_member(message),
873 dbus_message_get_path(message));
7e4249b9
LP		 874
875 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
876 log_error("Warning! D-Bus connection terminated.");
877 dbus_connection_close(connection);
878
879 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
880 uint32_t id;
881 const char *path;
5e374895 882 dbus_bool_t success = true;
7e4249b9
LP		 883
884 if (!dbus_message_get_args(message, &error,
885 DBUS_TYPE_UINT32, &id,
886 DBUS_TYPE_OBJECT_PATH, &path,
5e374895 887 DBUS_TYPE_BOOLEAN, &success,
7e4249b9
LP		 888 DBUS_TYPE_INVALID))
889 log_error("Failed to parse message: %s", error.message);
890 else {
891 char *p;
892
5e374895 893 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 894 free(p);
5e374895
LP		 895
896 if (!success)
897 d->failed = true;
7e4249b9
LP		 898 }
899 }
900
901 dbus_error_free(&error);
902 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
903}
904
479ef5d3 905static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 906 DBusError error;
7e4249b9
LP		 907
908 assert(bus);
7e4249b9 909
f4579ce7
LP		 910 if (private_bus)
911 return 0;
912
7e4249b9 913 dbus_error_init(&error);
7e4249b9
LP		 914 dbus_bus_add_match(bus,
915 "type='signal',"
916 "sender='org.freedesktop.systemd1',"
917 "interface='org.freedesktop.systemd1.Manager',"
918 "member='JobRemoved',"
919 "path='/org/freedesktop/systemd1'",
920 &error);
921
922 if (dbus_error_is_set(&error)) {
923 log_error("Failed to add match: %s", error.message);
a567261a
LP		 924 dbus_error_free(&error);
925 return -EIO;
7e4249b9
LP		 926 }
927
479ef5d3 928 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 929 return 0;
7e4249b9
LP		 930}
931
479ef5d3
LP		 932static int wait_for_jobs(DBusConnection *bus, Set *s) {
933 int r;
5e374895 934 WaitData d;
479ef5d3
LP		 935
936 assert(bus);
937 assert(s);
938
5e374895
LP		 939 zero(d);
940 d.set = s;
941 d.failed = false;
942
943 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 944 log_error("Failed to add filter.");
945 r = -ENOMEM;
946 goto finish;
947 }
948
949 while (!set_isempty(s) &&
950 dbus_connection_read_write_dispatch(bus, -1))
951 ;
952
5e374895
LP		 953 if (!arg_quiet && d.failed)
954 log_error("Job failed, see logs for details.");
955
956 r = d.failed ? -EIO : 0;
479ef5d3
LP		 957
958finish:
959 /* This is slightly dirty, since we don't undo the filter registration. */
960
961 return r;
962}
963
e4b61340
LP		 964static int start_unit_one(
965 DBusConnection *bus,
966 const char *method,
967 const char *name,
968 const char *mode,
969 Set *s) {
7e4249b9 970
7e4249b9
LP		 971 DBusMessage *m = NULL, *reply = NULL;
972 DBusError error;
45fb0699 973 const char *path;
7e4249b9 974 int r;
7e4249b9 975
e4b61340
LP		 976 assert(bus);
977 assert(method);
978 assert(name);
979 assert(mode);
6e905d93 980 assert(arg_no_block || s);
7e4249b9 981
e4b61340 982 dbus_error_init(&error);
479ef5d3 983
7e4249b9
LP		 984 if (!(m = dbus_message_new_method_call(
985 "org.freedesktop.systemd1",
986 "/org/freedesktop/systemd1",
987 "org.freedesktop.systemd1.Manager",
e4b61340 988 method))) {
7e4249b9
LP		 989 log_error("Could not allocate message.");
990 r = -ENOMEM;
991 goto finish;
992 }
993
994 if (!dbus_message_append_args(m,
e4b61340 995 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 996 DBUS_TYPE_STRING, &mode,
997 DBUS_TYPE_INVALID)) {
998 log_error("Could not append arguments to message.");
999 r = -ENOMEM;
1000 goto finish;
1001 }
1002
1003 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 1004
1005 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
1006 /* There's always a fallback possible for
1007 * legacy actions. */
1008 r = 0;
1009 goto finish;
1010 }
1011
7e4249b9
LP		 1012 log_error("Failed to issue method call: %s", error.message);
1013 r = -EIO;
1014 goto finish;
1015 }
1016
45fb0699
LP		 1017 if (!dbus_message_get_args(reply, &error,
1018 DBUS_TYPE_OBJECT_PATH, &path,
1019 DBUS_TYPE_INVALID)) {
1020 log_error("Failed to parse reply: %s", error.message);
1021 r = -EIO;
1022 goto finish;
1023 }
1024
ee5762e3 1025 if (need_daemon_reload(bus, name))
45fb0699
LP		 1026 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1027 arg_session ? "--session" : "--system");
1028
6e905d93 1029 if (!arg_no_block) {
e4b61340 1030 char *p;
7e4249b9 1031
7e4249b9
LP		 1032 if (!(p = strdup(path))) {
1033 log_error("Failed to duplicate path.");
1034 r = -ENOMEM;
1035 goto finish;
1036 }
1037
1038 if ((r = set_put(s, p)) < 0) {
e4b61340 1039 free(p);
7e4249b9
LP		 1040 log_error("Failed to add path to set.");
1041 goto finish;
1042 }
e4b61340 1043 }
7e4249b9 1044
e4b61340 1045 r = 1;
7e4249b9
LP		 1046
1047finish:
7e4249b9
LP		 1048 if (m)
1049 dbus_message_unref(m);
1050
1051 if (reply)
1052 dbus_message_unref(reply);
1053
1054 dbus_error_free(&error);
1055
1056 return r;
1057}
1058
514f4ef5
LP		 1059static enum action verb_to_action(const char *verb) {
1060 if (streq(verb, "halt"))
1061 return ACTION_HALT;
1062 else if (streq(verb, "poweroff"))
1063 return ACTION_POWEROFF;
1064 else if (streq(verb, "reboot"))
1065 return ACTION_REBOOT;
1066 else if (streq(verb, "rescue"))
1067 return ACTION_RESCUE;
1068 else if (streq(verb, "emergency"))
1069 return ACTION_EMERGENCY;
1070 else if (streq(verb, "default"))
1071 return ACTION_DEFAULT;
1072 else
1073 return ACTION_INVALID;
1074}
1075
e4b61340
LP		 1076static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1077
1078 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1079 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1080 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1081 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1082 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1083 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1084 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1085 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1086 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1087 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
514f4ef5 1088 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
e4b61340
LP		 1089 };
1090
1091 int r;
1092 unsigned i;
514f4ef5 1093 const char *method, *mode, *one_name;
e4b61340
LP		 1094 Set *s = NULL;
1095
514f4ef5
LP		 1096 assert(bus);
1097
e4b61340
LP		 1098 if (arg_action == ACTION_SYSTEMCTL) {
1099 method =
6f28c033
LP		 1100 streq(args[0], "stop") ? "StopUnit" :
1101 streq(args[0], "reload") ? "ReloadUnit" :
1102 streq(args[0], "restart") ? "RestartUnit" :
1103 streq(args[0], "try-restart") ? "TryRestartUnit" :
1104 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
9d8a57ff
LP		 1105 streq(args[0], "reload-or-try-restart") ||
1106 streq(args[0], "force-reload") ||
1107 streq(args[0], "condrestart") ? "ReloadOrTryRestartUnit" :
6f28c033 1108 "StartUnit";
e4b61340
LP		 1109
1110 mode =
514f4ef5
LP		 1111 (streq(args[0], "isolate") ||
1112 streq(args[0], "rescue") ||
1113 streq(args[0], "emergency")) ? "isolate" :
90d473a1
LP		 1114 arg_fail ? "fail" :
1115 "replace";
e4b61340 1116
514f4ef5 1117 one_name = table[verb_to_action(args[0])];
e4b61340 1118
e4b61340
LP		 1119 } else {
1120 assert(arg_action < ELEMENTSOF(table));
1121 assert(table[arg_action]);
1122
1123 method = "StartUnit";
514f4ef5
LP		 1124
1125 mode = (arg_action == ACTION_EMERGENCY ||
1126 arg_action == ACTION_RESCUE) ? "isolate" : "replace";
1127
1128 one_name = table[arg_action];
1129 }
1130
6e905d93 1131 if (!arg_no_block) {
514f4ef5
LP		 1132 if ((r = enable_wait_for_jobs(bus)) < 0) {
1133 log_error("Could not watch jobs: %s", strerror(-r));
1134 goto finish;
1135 }
1136
1137 if (!(s = set_new(string_hash_func, string_compare_func))) {
1138 log_error("Failed to allocate set.");
1139 r = -ENOMEM;
1140 goto finish;
1141 }
e4b61340
LP		 1142 }
1143
1144 r = 0;
1145
514f4ef5
LP		 1146 if (one_name) {
1147 if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
1148 goto finish;
1149 } else {
e4b61340
LP		 1150 for (i = 1; i < n; i++)
1151 if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
1152 goto finish;
e4b61340
LP		 1153 }
1154
6e905d93 1155 if (!arg_no_block)
514f4ef5
LP		 1156 r = wait_for_jobs(bus, s);
1157
e4b61340
LP		 1158finish:
1159 if (s)
1160 set_free_free(s);
1161
1162 return r;
1163}
1164
514f4ef5 1165static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1166 int r;
1167
514f4ef5
LP		 1168 assert(bus);
1169 assert(args);
1170
983d9c90
LP		 1171 r = start_unit(bus, args, n);
1172
1173 if (r >= 0)
1174 warn_wall(verb_to_action(args[0]));
514f4ef5 1175
983d9c90 1176 return r;
514f4ef5
LP		 1177}
1178
0183528f
LP		 1179static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1180 DBusMessage *m = NULL, *reply = NULL;
1181 const char
1182 *interface = "org.freedesktop.systemd1.Unit",
1183 *property = "ActiveState";
1184 int r = -EADDRNOTAVAIL;
1185 DBusError error;
1186 unsigned i;
1187
1188 assert(bus);
1189 assert(args);
1190
1191 dbus_error_init(&error);
1192
1193 for (i = 1; i < n; i++) {
1194 const char *path = NULL;
1195 const char *state;
1196 DBusMessageIter iter, sub;
1197
1198 if (!(m = dbus_message_new_method_call(
1199 "org.freedesktop.systemd1",
1200 "/org/freedesktop/systemd1",
1201 "org.freedesktop.systemd1.Manager",
1202 "GetUnit"))) {
1203 log_error("Could not allocate message.");
1204 r = -ENOMEM;
1205 goto finish;
1206 }
1207
1208 if (!dbus_message_append_args(m,
1209 DBUS_TYPE_STRING, &args[i],
1210 DBUS_TYPE_INVALID)) {
1211 log_error("Could not append arguments to message.");
1212 r = -ENOMEM;
1213 goto finish;
1214 }
1215
1216 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1217
1218 /* Hmm, cannot figure out anything about this unit... */
1219 if (!arg_quiet)
1220 puts("unknown");
1221
ed2d7a44 1222 dbus_error_free(&error);
0183528f
LP		 1223 continue;
1224 }
1225
1226 if (!dbus_message_get_args(reply, &error,
1227 DBUS_TYPE_OBJECT_PATH, &path,
1228 DBUS_TYPE_INVALID)) {
1229 log_error("Failed to parse reply: %s", error.message);
1230 r = -EIO;
1231 goto finish;
1232 }
1233
1234 dbus_message_unref(m);
1235 if (!(m = dbus_message_new_method_call(
1236 "org.freedesktop.systemd1",
1237 path,
1238 "org.freedesktop.DBus.Properties",
1239 "Get"))) {
1240 log_error("Could not allocate message.");
1241 r = -ENOMEM;
1242 goto finish;
1243 }
1244
1245 if (!dbus_message_append_args(m,
1246 DBUS_TYPE_STRING, &interface,
1247 DBUS_TYPE_STRING, &property,
1248 DBUS_TYPE_INVALID)) {
1249 log_error("Could not append arguments to message.");
1250 r = -ENOMEM;
1251 goto finish;
1252 }
1253
1254 dbus_message_unref(reply);
1255 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1256 log_error("Failed to issue method call: %s", error.message);
1257 r = -EIO;
1258 goto finish;
1259 }
1260
1261 if (!dbus_message_iter_init(reply, &iter) ||
1262 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1263 log_error("Failed to parse reply.");
1264 r = -EIO;
1265 goto finish;
1266 }
1267
1268 dbus_message_iter_recurse(&iter, &sub);
1269
1270 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1271 log_error("Failed to parse reply.");
1272 r = -EIO;
1273 goto finish;
1274 }
1275
1276 dbus_message_iter_get_basic(&sub, &state);
1277
1278 if (!arg_quiet)
1279 puts(state);
1280
01b1b079 1281 if (streq(state, "active") || startswith(state, "reloading"))
0183528f
LP		 1282 r = 0;
1283
1284 dbus_message_unref(m);
1285 dbus_message_unref(reply);
1286 m = reply = NULL;
1287 }
1288
1289finish:
1290 if (m)
1291 dbus_message_unref(m);
1292
1293 if (reply)
1294 dbus_message_unref(reply);
1295
1296 dbus_error_free(&error);
1297
1298 return r;
48220598
LP		 1299}
1300
582a507f
LP		 1301typedef struct ExecStatusInfo {
1302 char *path;
1303 char **argv;
1304
b708e7ce
LP		 1305 bool ignore;
1306
582a507f
LP		 1307 usec_t start_timestamp;
1308 usec_t exit_timestamp;
1309 pid_t pid;
1310 int code;
1311 int status;
1312
1313 LIST_FIELDS(struct ExecStatusInfo, exec);
1314} ExecStatusInfo;
1315
1316static void exec_status_info_free(ExecStatusInfo *i) {
1317 assert(i);
1318
1319 free(i->path);
1320 strv_free(i->argv);
1321 free(i);
1322}
1323
1324static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1325 uint64_t start_timestamp, exit_timestamp;
1326 DBusMessageIter sub2, sub3;
1327 const char*path;
1328 unsigned n;
1329 uint32_t pid;
1330 int32_t code, status;
b708e7ce 1331 dbus_bool_t ignore;
582a507f
LP		 1332
1333 assert(i);
1334 assert(i);
1335
1336 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1337 return -EIO;
1338
1339 dbus_message_iter_recurse(sub, &sub2);
1340
1341 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1342 return -EIO;
1343
1344 if (!(i->path = strdup(path)))
1345 return -ENOMEM;
1346
1347 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1348 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1349 return -EIO;
1350
1351 n = 0;
1352 dbus_message_iter_recurse(&sub2, &sub3);
1353 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1354 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1355 dbus_message_iter_next(&sub3);
1356 n++;
1357 }
1358
1359
1360 if (!(i->argv = new0(char*, n+1)))
1361 return -ENOMEM;
1362
1363 n = 0;
1364 dbus_message_iter_recurse(&sub2, &sub3);
1365 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1366 const char *s;
1367
1368 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1369 dbus_message_iter_get_basic(&sub3, &s);
1370 dbus_message_iter_next(&sub3);
1371
1372 if (!(i->argv[n++] = strdup(s)))
1373 return -ENOMEM;
1374 }
1375
1376 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1377 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1378 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1379 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1380 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1381 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1382 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1383 return -EIO;
1384
b708e7ce 1385 i->ignore = ignore;
582a507f
LP		 1386 i->start_timestamp = (usec_t) start_timestamp;
1387 i->exit_timestamp = (usec_t) exit_timestamp;
1388 i->pid = (pid_t) pid;
1389 i->code = code;
1390 i->status = status;
1391
1392 return 0;
1393}
1394
61cbdc4b
LP		 1395typedef struct UnitStatusInfo {
1396 const char *id;
1397 const char *load_state;
1398 const char *active_state;
1399 const char *sub_state;
1400
1401 const char *description;
1402
1403 const char *fragment_path;
1404 const char *default_control_group;
1405
45fb0699
LP		 1406 bool need_daemon_reload;
1407
61cbdc4b
LP		 1408 /* Service */
1409 pid_t main_pid;
1410 pid_t control_pid;
1411 const char *status_text;
1412 bool running;
1413
1414 usec_t start_timestamp;
1415 usec_t exit_timestamp;
1416
1417 int exit_code, exit_status;
1418
1419 /* Socket */
1420 unsigned n_accepted;
1421 unsigned n_connections;
b8131a87 1422 bool accept;
61cbdc4b
LP		 1423
1424 /* Device */
1425 const char *sysfs_path;
1426
1427 /* Mount, Automount */
1428 const char *where;
1429
1430 /* Swap */
1431 const char *what;
582a507f
LP		 1432
1433 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1434} UnitStatusInfo;
1435
1436static void print_status_info(UnitStatusInfo *i) {
582a507f
LP		 1437 ExecStatusInfo *p;
1438
61cbdc4b
LP		 1439 assert(i);
1440
1441 /* This shows pretty information about a unit. See
1442 * print_property() for a low-level property printer */
1443
1444 printf("%s", strna(i->id));
1445
1446 if (i->description && !streq_ptr(i->id, i->description))
1447 printf(" - %s", i->description);
1448
1449 printf("\n");
1450
1451 if (i->fragment_path)
1452 printf("\t Loaded: %s (%s)\n", strna(i->load_state), i->fragment_path);
1453 else if (streq_ptr(i->load_state, "failed"))
2cc59dbf
LP		 1454 printf("\t Loaded: %s%s%s\n",
1455 ansi_highlight(true),
1456 strna(i->load_state),
1457 ansi_highlight(false));
61cbdc4b
LP		 1458 else
1459 printf("\t Loaded: %s\n", strna(i->load_state));
1460
582a507f
LP		 1461 if (streq_ptr(i->active_state, "maintenance")) {
1462 if (streq_ptr(i->active_state, i->sub_state))
2cc59dbf
LP		 1463 printf("\t Active: %s%s%s\n",
1464 ansi_highlight(true),
1465 strna(i->active_state),
1466 ansi_highlight(false));
582a507f 1467 else
2cc59dbf
LP		 1468 printf("\t Active: %s%s (%s)%s\n",
1469 ansi_highlight(true),
582a507f 1470 strna(i->active_state),
2cc59dbf
LP		 1471 strna(i->sub_state),
1472 ansi_highlight(false));
582a507f
LP		 1473 } else {
1474 if (streq_ptr(i->active_state, i->sub_state))
1475 printf("\t Active: %s\n",
1476 strna(i->active_state));
1477 else
1478 printf("\t Active: %s (%s)\n",
1479 strna(i->active_state),
1480 strna(i->sub_state));
1481 }
61cbdc4b
LP		 1482
1483 if (i->sysfs_path)
1484 printf("\t Device: %s\n", i->sysfs_path);
1485 else if (i->where)
1486 printf("\t Where: %s\n", i->where);
1487 else if (i->what)
1488 printf("\t What: %s\n", i->what);
1489
b8131a87 1490 if (i->accept)
61cbdc4b
LP		 1491 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1492
582a507f
LP		 1493 LIST_FOREACH(exec, p, i->exec) {
1494 char *t;
1495
1496 /* Only show exited processes here */
1497 if (p->code == 0)
1498 continue;
1499
1500 t = strv_join(p->argv, " ");
1501 printf("\t Exited: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
1502 free(t);
1503
1504 if (p->code == CLD_EXITED)
1505 printf("status=%i", p->status);
1506 else
1507 printf("signal=%s", signal_to_string(p->status));
1508 printf(")\n");
1509
1510 if (i->main_pid == p->pid &&
1511 i->start_timestamp == p->start_timestamp &&
1512 i->exit_timestamp == p->start_timestamp)
1513 /* Let's not show this twice */
1514 i->main_pid = 0;
1515
1516 if (p->pid == i->control_pid)
1517 i->control_pid = 0;
1518 }
1519
61cbdc4b
LP		 1520 if (i->main_pid > 0 || i->control_pid > 0) {
1521 printf("\t");
1522
1523 if (i->main_pid > 0) {
582a507f 1524 printf(" Main: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1525
1526 if (i->running) {
1527 char *t = NULL;
1528 get_process_name(i->main_pid, &t);
1529 if (t) {
1530 printf(" (%s)", t);
1531 free(t);
1532 }
6d4fc029 1533 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1534 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1535
1536 if (i->exit_code == CLD_EXITED)
1537 printf("status=%i", i->exit_status);
1538 else
582a507f 1539 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1540 printf(")");
1541 }
61cbdc4b
LP		 1542 }
1543
1544 if (i->main_pid > 0 && i->control_pid > 0)
1545 printf(";");
1546
1547 if (i->control_pid > 0) {
1548 char *t = NULL;
1549
1550 printf(" Control: %u", (unsigned) i->control_pid);
1551
1552 get_process_name(i->control_pid, &t);
1553 if (t) {
1554 printf(" (%s)", t);
1555 free(t);
1556 }
1557 }
1558
1559 printf("\n");
1560 }
1561
17bb7382
LP		 1562 if (i->status_text)
1563 printf("\t Status: \"%s\"\n", i->status_text);
1564
c59760ee 1565 if (i->default_control_group) {
ab35fb1b
LP		 1566 unsigned c;
1567
61cbdc4b 1568 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1569
1570 if ((c = columns()) > 18)
1571 c -= 18;
1572 else
1573 c = 0;
1574
35d2e7ec 1575 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1576 }
45fb0699
LP		 1577
1578 if (i->need_daemon_reload)
2cc59dbf
LP		 1579 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1580 ansi_highlight(true),
1581 ansi_highlight(false),
45fb0699 1582 arg_session ? "--session" : "--system");
61cbdc4b
LP		 1583}
1584
1585static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1586
1587 switch (dbus_message_iter_get_arg_type(iter)) {
1588
1589 case DBUS_TYPE_STRING: {
1590 const char *s;
1591
1592 dbus_message_iter_get_basic(iter, &s);
1593
1594 if (s[0]) {
1595 if (streq(name, "Id"))
1596 i->id = s;
1597 else if (streq(name, "LoadState"))
1598 i->load_state = s;
1599 else if (streq(name, "ActiveState"))
1600 i->active_state = s;
1601 else if (streq(name, "SubState"))
1602 i->sub_state = s;
1603 else if (streq(name, "Description"))
1604 i->description = s;
1605 else if (streq(name, "FragmentPath"))
1606 i->fragment_path = s;
1607 else if (streq(name, "DefaultControlGroup"))
1608 i->default_control_group = s;
1609 else if (streq(name, "StatusText"))
1610 i->status_text = s;
1611 else if (streq(name, "SysFSPath"))
1612 i->sysfs_path = s;
1613 else if (streq(name, "Where"))
1614 i->where = s;
1615 else if (streq(name, "What"))
1616 i->what = s;
1617 }
1618
1619 break;
1620 }
1621
b8131a87
LP		 1622 case DBUS_TYPE_BOOLEAN: {
1623 dbus_bool_t b;
1624
1625 dbus_message_iter_get_basic(iter, &b);
1626
1627 if (streq(name, "Accept"))
1628 i->accept = b;
45fb0699
LP		 1629 else if (streq(name, "NeedDaemonReload"))
1630 i->need_daemon_reload = b;
b8131a87
LP		 1631
1632 break;
1633 }
1634
61cbdc4b
LP		 1635 case DBUS_TYPE_UINT32: {
1636 uint32_t u;
1637
1638 dbus_message_iter_get_basic(iter, &u);
1639
1640 if (streq(name, "MainPID")) {
1641 if (u > 0) {
1642 i->main_pid = (pid_t) u;
1643 i->running = true;
1644 }
1645 } else if (streq(name, "ControlPID"))
1646 i->control_pid = (pid_t) u;
1647 else if (streq(name, "ExecMainPID")) {
1648 if (u > 0)
1649 i->main_pid = (pid_t) u;
1650 } else if (streq(name, "NAccepted"))
1651 i->n_accepted = u;
1652 else if (streq(name, "NConnections"))
1653 i->n_connections = u;
1654
1655 break;
1656 }
1657
1658 case DBUS_TYPE_INT32: {
1659 int32_t j;
1660
1661 dbus_message_iter_get_basic(iter, &j);
1662
1663 if (streq(name, "ExecMainCode"))
1664 i->exit_code = (int) j;
1665 else if (streq(name, "ExecMainStatus"))
1666 i->exit_status = (int) j;
1667
1668 break;
1669 }
1670
1671 case DBUS_TYPE_UINT64: {
1672 uint64_t u;
1673
1674 dbus_message_iter_get_basic(iter, &u);
1675
1676 if (streq(name, "ExecMainStartTimestamp"))
1677 i->start_timestamp = (usec_t) u;
1678 else if (streq(name, "ExecMainExitTimestamp"))
1679 i->exit_timestamp = (usec_t) u;
1680
1681 break;
1682 }
582a507f
LP		 1683
1684 case DBUS_TYPE_ARRAY: {
1685
1686 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1687 startswith(name, "Exec")) {
1688 DBusMessageIter sub;
1689
1690 dbus_message_iter_recurse(iter, &sub);
1691 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1692 ExecStatusInfo *info;
1693 int r;
1694
1695 if (!(info = new0(ExecStatusInfo, 1)))
1696 return -ENOMEM;
1697
1698 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1699 free(info);
1700 return r;
1701 }
1702
1703 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1704
1705 dbus_message_iter_next(&sub);
1706 }
1707 }
1708
1709 break;
1710 }
61cbdc4b
LP		 1711 }
1712
1713 return 0;
1714}
1715
48220598
LP		 1716static int print_property(const char *name, DBusMessageIter *iter) {
1717 assert(name);
1718 assert(iter);
1719
61cbdc4b
LP		 1720 /* This is a low-level property printer, see
1721 * print_status_info() for the nicer output */
1722
ea4a240d 1723 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 1724 return 0;
1725
1726 switch (dbus_message_iter_get_arg_type(iter)) {
1727
1728 case DBUS_TYPE_STRING: {
1729 const char *s;
1730 dbus_message_iter_get_basic(iter, &s);
1731
1732 if (arg_all || s[0])
1733 printf("%s=%s\n", name, s);
1734
1735 return 0;
1736 }
1737
1738 case DBUS_TYPE_BOOLEAN: {
1739 dbus_bool_t b;
1740 dbus_message_iter_get_basic(iter, &b);
1741 printf("%s=%s\n", name, yes_no(b));
1742
1743 return 0;
1744 }
1745
1746 case DBUS_TYPE_UINT64: {
1747 uint64_t u;
1748 dbus_message_iter_get_basic(iter, &u);
1749
1750 /* Yes, heuristics! But we can change this check
1751 * should it turn out to not be sufficient */
1752
14ad1d14 1753 if (strstr(name, "Timestamp")) {
48220598
LP		 1754 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1755
1756 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1757 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 1758 } else if (strstr(name, "USec")) {
1759 char timespan[FORMAT_TIMESPAN_MAX];
1760
1761 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 1762 } else
1763 printf("%s=%llu\n", name, (unsigned long long) u);
1764
1765 return 0;
1766 }
1767
1768 case DBUS_TYPE_UINT32: {
1769 uint32_t u;
1770 dbus_message_iter_get_basic(iter, &u);
1771
5bd07073 1772 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 1773 printf("%s=%04o\n", name, u);
1774 else
1775 printf("%s=%u\n", name, (unsigned) u);
1776
1777 return 0;
1778 }
1779
1780 case DBUS_TYPE_INT32: {
1781 int32_t i;
1782 dbus_message_iter_get_basic(iter, &i);
1783
1784 printf("%s=%i\n", name, (int) i);
1785 return 0;
1786 }
1787
1788 case DBUS_TYPE_STRUCT: {
1789 DBusMessageIter sub;
1790 dbus_message_iter_recurse(iter, &sub);
1791
ebf57b80 1792 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 1793 uint32_t u;
1794
1795 dbus_message_iter_get_basic(&sub, &u);
1796
1797 if (u)
1798 printf("%s=%u\n", name, (unsigned) u);
1799 else if (arg_all)
1800 printf("%s=\n", name);
1801
1802 return 0;
ebf57b80 1803 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 1804 const char *s;
1805
1806 dbus_message_iter_get_basic(&sub, &s);
1807
1808 if (arg_all || s[0])
1809 printf("%s=%s\n", name, s);
1810
1811 return 0;
1812 }
1813
1814 break;
1815 }
1816
1817 case DBUS_TYPE_ARRAY:
1818
1819 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
1820 DBusMessageIter sub;
1821 bool space = false;
1822
1823 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 1824 if (arg_all ||
1825 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1826 printf("%s=", name);
1827
1828 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1829 const char *s;
1830
1831 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
1832 dbus_message_iter_get_basic(&sub, &s);
1833 printf("%s%s", space ? " " : "", s);
1834
1835 space = true;
1836 dbus_message_iter_next(&sub);
1837 }
1838
1839 puts("");
1840 }
1841
ebf57b80 1842 return 0;
582a507f 1843
82c121a4
LP		 1844 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
1845 DBusMessageIter sub;
1846
1847 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 1848 if (arg_all ||
1849 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1850 printf("%s=", name);
1851
1852 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1853 uint8_t u;
ebf57b80 1854
82c121a4
LP		 1855 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
1856 dbus_message_iter_get_basic(&sub, &u);
1857 printf("%02x", u);
1858
1859 dbus_message_iter_next(&sub);
1860 }
1861
1862 puts("");
1863 }
1864
1865 return 0;
582a507f 1866
ebf57b80
LP		 1867 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
1868 DBusMessageIter sub, sub2;
1869
1870 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 1871 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1872 const char *type, *path;
1873
1874 dbus_message_iter_recurse(&sub, &sub2);
1875
1876 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
1877 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
1878 printf("%s=%s\n", type, path);
1879
1880 dbus_message_iter_next(&sub);
1881 }
1882
707e5e52 1883 return 0;
582a507f 1884
707e5e52
LP		 1885 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
1886 DBusMessageIter sub, sub2;
1887
1888 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 1889 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1890 const char *base;
1891 uint64_t value, next_elapse;
1892
1893 dbus_message_iter_recurse(&sub, &sub2);
1894
1895 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
1896 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 1897 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
1898 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
1899
1900 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 1901 base,
552e4331
LP		 1902 format_timespan(timespan1, sizeof(timespan1), value),
1903 format_timespan(timespan2, sizeof(timespan2), next_elapse));
1904 }
fe68089d
LP		 1905
1906 dbus_message_iter_next(&sub);
1907 }
1908
1909 return 0;
fe68089d 1910
582a507f
LP		 1911 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
1912 DBusMessageIter sub;
fe68089d
LP		 1913
1914 dbus_message_iter_recurse(iter, &sub);
fe68089d 1915 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 1916 ExecStatusInfo info;
fe68089d 1917
582a507f
LP		 1918 zero(info);
1919 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 1920 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 1921 char *t;
1922
1923 t = strv_join(info.argv, " ");
1924
b708e7ce 1925 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		 1926 name,
1927 strna(info.path),
1928 strna(t),
b708e7ce 1929 yes_no(info.ignore),
582a507f
LP		 1930 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
1931 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
1932 (unsigned) info. pid,
1933 sigchld_code_to_string(info.code),
1934 info.status,
1935 info.code == CLD_EXITED ? "" : "/",
1936 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 1937
582a507f 1938 free(t);
fe68089d
LP		 1939 }
1940
582a507f
LP		 1941 free(info.path);
1942 strv_free(info.argv);
707e5e52
LP		 1943
1944 dbus_message_iter_next(&sub);
1945 }
1946
48220598
LP		 1947 return 0;
1948 }
1949
1950 break;
1951 }
1952
1953 if (arg_all)
1954 printf("%s=[unprintable]\n", name);
1955
1956 return 0;
1957}
1958
61cbdc4b 1959static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 1960 DBusMessage *m = NULL, *reply = NULL;
1961 const char *interface = "";
1962 int r;
1963 DBusError error;
1964 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 1965 UnitStatusInfo info;
582a507f 1966 ExecStatusInfo *p;
48220598
LP		 1967
1968 assert(bus);
1969 assert(path);
61cbdc4b 1970 assert(new_line);
48220598 1971
61cbdc4b 1972 zero(info);
48220598
LP		 1973 dbus_error_init(&error);
1974
1975 if (!(m = dbus_message_new_method_call(
1976 "org.freedesktop.systemd1",
1977 path,
1978 "org.freedesktop.DBus.Properties",
1979 "GetAll"))) {
1980 log_error("Could not allocate message.");
1981 r = -ENOMEM;
1982 goto finish;
1983 }
1984
1985 if (!dbus_message_append_args(m,
1986 DBUS_TYPE_STRING, &interface,
1987 DBUS_TYPE_INVALID)) {
1988 log_error("Could not append arguments to message.");
1989 r = -ENOMEM;
1990 goto finish;
1991 }
1992
1993 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1994 log_error("Failed to issue method call: %s", error.message);
1995 r = -EIO;
1996 goto finish;
1997 }
1998
1999 if (!dbus_message_iter_init(reply, &iter) ||
2000 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2001 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2002 log_error("Failed to parse reply.");
2003 r = -EIO;
2004 goto finish;
2005 }
2006
2007 dbus_message_iter_recurse(&iter, &sub);
2008
61cbdc4b
LP		 2009 if (*new_line)
2010 printf("\n");
2011
2012 *new_line = true;
2013
48220598
LP		 2014 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2015 const char *name;
2016
2017 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2018 log_error("Failed to parse reply.");
2019 r = -EIO;
2020 goto finish;
2021 }
2022
2023 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2024
48220598
LP		 2025 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2026 log_error("Failed to parse reply.");
2027 r = -EIO;
2028 goto finish;
2029 }
2030
2031 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2032 log_error("Failed to parse reply.");
2033 r = -EIO;
2034 goto finish;
2035 }
2036
2037 dbus_message_iter_recurse(&sub2, &sub3);
2038
61cbdc4b
LP		 2039 if (show_properties)
2040 r = print_property(name, &sub3);
2041 else
2042 r = status_property(name, &sub3, &info);
2043
2044 if (r < 0) {
48220598
LP		 2045 log_error("Failed to parse reply.");
2046 r = -EIO;
2047 goto finish;
2048 }
2049
2050 dbus_message_iter_next(&sub);
2051 }
2052
61cbdc4b
LP		 2053 if (!show_properties)
2054 print_status_info(&info);
2055
582a507f
LP		 2056 while ((p = info.exec)) {
2057 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2058 exec_status_info_free(p);
2059 }
2060
48220598
LP		 2061 r = 0;
2062
2063finish:
2064 if (m)
2065 dbus_message_unref(m);
2066
2067 if (reply)
2068 dbus_message_unref(reply);
2069
2070 dbus_error_free(&error);
2071
2072 return r;
2073}
2074
2075static int show(DBusConnection *bus, char **args, unsigned n) {
2076 DBusMessage *m = NULL, *reply = NULL;
2077 int r;
2078 DBusError error;
2079 unsigned i;
61cbdc4b 2080 bool show_properties, new_line = false;
48220598
LP		 2081
2082 assert(bus);
2083 assert(args);
2084
2085 dbus_error_init(&error);
2086
61cbdc4b
LP		 2087 show_properties = !streq(args[0], "status");
2088
2089 if (show_properties && n <= 1) {
48220598
LP		 2090 /* If not argument is specified inspect the manager
2091 * itself */
2092
61cbdc4b 2093 r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2094 goto finish;
2095 }
2096
2097 for (i = 1; i < n; i++) {
2098 const char *path = NULL;
2099 uint32_t id;
2100
61cbdc4b 2101 if (!show_properties || safe_atou32(args[i], &id) < 0) {
48220598
LP		 2102
2103 if (!(m = dbus_message_new_method_call(
2104 "org.freedesktop.systemd1",
2105 "/org/freedesktop/systemd1",
2106 "org.freedesktop.systemd1.Manager",
e87d1818 2107 "LoadUnit"))) {
48220598
LP		 2108 log_error("Could not allocate message.");
2109 r = -ENOMEM;
2110 goto finish;
2111 }
2112
2113 if (!dbus_message_append_args(m,
2114 DBUS_TYPE_STRING, &args[i],
2115 DBUS_TYPE_INVALID)) {
2116 log_error("Could not append arguments to message.");
2117 r = -ENOMEM;
2118 goto finish;
2119 }
2120
ed2d7a44
LP		 2121 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2122
2123 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2124 log_error("Failed to issue method call: %s", error.message);
2125 r = -EIO;
2126 goto finish;
2127 }
2128
2129 dbus_error_free(&error);
2130
2131 dbus_message_unref(m);
2132 if (!(m = dbus_message_new_method_call(
2133 "org.freedesktop.systemd1",
2134 "/org/freedesktop/systemd1",
2135 "org.freedesktop.systemd1.Manager",
2136 "GetUnit"))) {
2137 log_error("Could not allocate message.");
2138 r = -ENOMEM;
2139 goto finish;
2140 }
2141
2142 if (!dbus_message_append_args(m,
2143 DBUS_TYPE_STRING, &args[i],
2144 DBUS_TYPE_INVALID)) {
2145 log_error("Could not append arguments to message.");
2146 r = -ENOMEM;
2147 goto finish;
2148 }
2149
2150 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2151 log_error("Failed to issue method call: %s", error.message);
2152 r = -EIO;
2153 goto finish;
2154 }
2155 }
2156
48220598
LP		 2157 } else {
2158
2159 if (!(m = dbus_message_new_method_call(
2160 "org.freedesktop.systemd1",
2161 "/org/freedesktop/systemd1",
2162 "org.freedesktop.systemd1.Manager",
2163 "GetJob"))) {
2164 log_error("Could not allocate message.");
2165 r = -ENOMEM;
2166 goto finish;
2167 }
2168
2169 if (!dbus_message_append_args(m,
2170 DBUS_TYPE_UINT32, &id,
2171 DBUS_TYPE_INVALID)) {
2172 log_error("Could not append arguments to message.");
2173 r = -ENOMEM;
2174 goto finish;
2175 }
48220598 2176
ed2d7a44
LP		 2177 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2178 log_error("Failed to issue method call: %s", error.message);
2179 r = -EIO;
2180 goto finish;
2181 }
48220598
LP		 2182 }
2183
2184 if (!dbus_message_get_args(reply, &error,
2185 DBUS_TYPE_OBJECT_PATH, &path,
2186 DBUS_TYPE_INVALID)) {
2187 log_error("Failed to parse reply: %s", error.message);
2188 r = -EIO;
2189 goto finish;
2190 }
2191
61cbdc4b 2192 if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
48220598
LP		 2193 goto finish;
2194
2195 dbus_message_unref(m);
2196 dbus_message_unref(reply);
2197 m = reply = NULL;
2198 }
2199
2200 r = 0;
2201
2202finish:
2203 if (m)
2204 dbus_message_unref(m);
2205
2206 if (reply)
2207 dbus_message_unref(reply);
2208
2209 dbus_error_free(&error);
2210
2211 return r;
0183528f
LP		 2212}
2213
7e4249b9
LP		 2214static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2215 DBusError error;
2216 DBusMessage *m = NULL, *reply = NULL;
2217
2218 assert(connection);
2219 assert(message);
2220
2221 dbus_error_init(&error);
2222
54165a39
LP		 2223 log_debug("Got D-Bus request: %s.%s() on %s",
2224 dbus_message_get_interface(message),
2225 dbus_message_get_member(message),
2226 dbus_message_get_path(message));
7e4249b9
LP		 2227
2228 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2229 log_error("Warning! D-Bus connection terminated.");
2230 dbus_connection_close(connection);
2231
2232 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2233 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2234 const char *id, *path;
2235
2236 if (!dbus_message_get_args(message, &error,
2237 DBUS_TYPE_STRING, &id,
2238 DBUS_TYPE_OBJECT_PATH, &path,
2239 DBUS_TYPE_INVALID))
2240 log_error("Failed to parse message: %s", error.message);
2241 else if (streq(dbus_message_get_member(message), "UnitNew"))
2242 printf("Unit %s added.\n", id);
2243 else
2244 printf("Unit %s removed.\n", id);
2245
2246 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2247 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2248 uint32_t id;
2249 const char *path;
2250
2251 if (!dbus_message_get_args(message, &error,
2252 DBUS_TYPE_UINT32, &id,
2253 DBUS_TYPE_OBJECT_PATH, &path,
2254 DBUS_TYPE_INVALID))
2255 log_error("Failed to parse message: %s", error.message);
2256 else if (streq(dbus_message_get_member(message), "JobNew"))
2257 printf("Job %u added.\n", id);
2258 else
2259 printf("Job %u removed.\n", id);
2260
2261
2262 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Unit", "Changed") ||
2263 dbus_message_is_signal(message, "org.freedesktop.systemd1.Job", "Changed")) {
2264
2265 const char *path, *interface, *property = "Id";
2266 DBusMessageIter iter, sub;
2267
2268 path = dbus_message_get_path(message);
2269 interface = dbus_message_get_interface(message);
2270
2271 if (!(m = dbus_message_new_method_call(
2272 "org.freedesktop.systemd1",
2273 path,
2274 "org.freedesktop.DBus.Properties",
2275 "Get"))) {
2276 log_error("Could not allocate message.");
2277 goto oom;
2278 }
2279
2280 if (!dbus_message_append_args(m,
2281 DBUS_TYPE_STRING, &interface,
2282 DBUS_TYPE_STRING, &property,
2283 DBUS_TYPE_INVALID)) {
2284 log_error("Could not append arguments to message.");
2285 goto finish;
2286 }
2287
2288 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2289 log_error("Failed to issue method call: %s", error.message);
2290 goto finish;
2291 }
2292
2293 if (!dbus_message_iter_init(reply, &iter) ||
2294 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2295 log_error("Failed to parse reply.");
2296 goto finish;
2297 }
2298
2299 dbus_message_iter_recurse(&iter, &sub);
2300
2301 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2302 const char *id;
2303
2304 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2305 log_error("Failed to parse reply.");
2306 goto finish;
2307 }
2308
2309 dbus_message_iter_get_basic(&sub, &id);
2310 printf("Unit %s changed.\n", id);
2311 } else {
2312 uint32_t id;
2313
2314 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2315 log_error("Failed to parse reply.");
2316 goto finish;
2317 }
2318
2319 dbus_message_iter_get_basic(&sub, &id);
2320 printf("Job %u changed.\n", id);
2321 }
2322 }
2323
2324finish:
2325 if (m)
2326 dbus_message_unref(m);
2327
2328 if (reply)
2329 dbus_message_unref(reply);
2330
2331 dbus_error_free(&error);
2332 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2333
2334oom:
2335 if (m)
2336 dbus_message_unref(m);
2337
2338 if (reply)
2339 dbus_message_unref(reply);
2340
2341 dbus_error_free(&error);
2342 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2343}
2344
2345static int monitor(DBusConnection *bus, char **args, unsigned n) {
2346 DBusMessage *m = NULL, *reply = NULL;
2347 DBusError error;
2348 int r;
2349
2350 dbus_error_init(&error);
2351
f4579ce7
LP		 2352 if (!private_bus) {
2353 dbus_bus_add_match(bus,
2354 "type='signal',"
2355 "sender='org.freedesktop.systemd1',"
2356 "interface='org.freedesktop.systemd1.Manager',"
2357 "path='/org/freedesktop/systemd1'",
2358 &error);
7e4249b9 2359
f4579ce7
LP		 2360 if (dbus_error_is_set(&error)) {
2361 log_error("Failed to add match: %s", error.message);
2362 r = -EIO;
2363 goto finish;
2364 }
7e4249b9 2365
f4579ce7
LP		 2366 dbus_bus_add_match(bus,
2367 "type='signal',"
2368 "sender='org.freedesktop.systemd1',"
2369 "interface='org.freedesktop.systemd1.Unit',"
2370 "member='Changed'",
2371 &error);
7e4249b9 2372
f4579ce7
LP		 2373 if (dbus_error_is_set(&error)) {
2374 log_error("Failed to add match: %s", error.message);
2375 r = -EIO;
2376 goto finish;
2377 }
7e4249b9 2378
f4579ce7
LP		 2379 dbus_bus_add_match(bus,
2380 "type='signal',"
2381 "sender='org.freedesktop.systemd1',"
2382 "interface='org.freedesktop.systemd1.Job',"
2383 "member='Changed'",
2384 &error);
7e4249b9 2385
f4579ce7
LP		 2386 if (dbus_error_is_set(&error)) {
2387 log_error("Failed to add match: %s", error.message);
2388 r = -EIO;
2389 goto finish;
2390 }
7e4249b9
LP		 2391 }
2392
2393 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2394 log_error("Failed to add filter.");
2395 r = -ENOMEM;
2396 goto finish;
2397 }
2398
2399 if (!(m = dbus_message_new_method_call(
2400 "org.freedesktop.systemd1",
2401 "/org/freedesktop/systemd1",
2402 "org.freedesktop.systemd1.Manager",
2403 "Subscribe"))) {
2404 log_error("Could not allocate message.");
2405 r = -ENOMEM;
2406 goto finish;
2407 }
2408
2409 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2410 log_error("Failed to issue method call: %s", error.message);
2411 r = -EIO;
2412 goto finish;
2413 }
2414
2415 while (dbus_connection_read_write_dispatch(bus, -1))
2416 ;
2417
2418 r = 0;
2419
2420finish:
2421
2422 /* This is slightly dirty, since we don't undo the filter or the matches. */
2423
2424 if (m)
2425 dbus_message_unref(m);
2426
2427 if (reply)
2428 dbus_message_unref(reply);
2429
2430 dbus_error_free(&error);
2431
2432 return r;
2433}
2434
2435static int dump(DBusConnection *bus, char **args, unsigned n) {
2436 DBusMessage *m = NULL, *reply = NULL;
2437 DBusError error;
2438 int r;
2439 const char *text;
2440
2441 dbus_error_init(&error);
2442
2443 if (!(m = dbus_message_new_method_call(
2444 "org.freedesktop.systemd1",
2445 "/org/freedesktop/systemd1",
2446 "org.freedesktop.systemd1.Manager",
2447 "Dump"))) {
2448 log_error("Could not allocate message.");
2449 return -ENOMEM;
2450 }
2451
2452 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2453 log_error("Failed to issue method call: %s", error.message);
2454 r = -EIO;
2455 goto finish;
2456 }
2457
2458 if (!dbus_message_get_args(reply, &error,
2459 DBUS_TYPE_STRING, &text,
2460 DBUS_TYPE_INVALID)) {
2461 log_error("Failed to parse reply: %s", error.message);
2462 r = -EIO;
2463 goto finish;
2464 }
2465
2466 fputs(text, stdout);
2467
2468 r = 0;
2469
2470finish:
2471 if (m)
2472 dbus_message_unref(m);
2473
2474 if (reply)
2475 dbus_message_unref(reply);
2476
2477 dbus_error_free(&error);
2478
2479 return r;
2480}
2481
2482static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2483 DBusMessage *m = NULL, *reply = NULL;
2484 DBusError error;
2485 int r;
2486 const char *name = "", *path, *id;
2487 dbus_bool_t cleanup = FALSE;
2488 DBusMessageIter iter, sub;
2489 const char
2490 *interface = "org.freedesktop.systemd1.Unit",
2491 *property = "Id";
2492
2493 dbus_error_init(&error);
2494
2495 if (!(m = dbus_message_new_method_call(
2496 "org.freedesktop.systemd1",
2497 "/org/freedesktop/systemd1",
2498 "org.freedesktop.systemd1.Manager",
2499 "CreateSnapshot"))) {
2500 log_error("Could not allocate message.");
2501 return -ENOMEM;
2502 }
2503
2504 if (n > 1)
2505 name = args[1];
2506
2507 if (!dbus_message_append_args(m,
2508 DBUS_TYPE_STRING, &name,
2509 DBUS_TYPE_BOOLEAN, &cleanup,
2510 DBUS_TYPE_INVALID)) {
2511 log_error("Could not append arguments to message.");
2512 r = -ENOMEM;
2513 goto finish;
2514 }
2515
2516 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2517 log_error("Failed to issue method call: %s", error.message);
2518 r = -EIO;
2519 goto finish;
2520 }
2521
2522 if (!dbus_message_get_args(reply, &error,
2523 DBUS_TYPE_OBJECT_PATH, &path,
2524 DBUS_TYPE_INVALID)) {
2525 log_error("Failed to parse reply: %s", error.message);
2526 r = -EIO;
2527 goto finish;
2528 }
2529
2530 dbus_message_unref(m);
2531 if (!(m = dbus_message_new_method_call(
2532 "org.freedesktop.systemd1",
2533 path,
2534 "org.freedesktop.DBus.Properties",
2535 "Get"))) {
2536 log_error("Could not allocate message.");
2537 return -ENOMEM;
2538 }
2539
2540 if (!dbus_message_append_args(m,
2541 DBUS_TYPE_STRING, &interface,
2542 DBUS_TYPE_STRING, &property,
2543 DBUS_TYPE_INVALID)) {
2544 log_error("Could not append arguments to message.");
2545 r = -ENOMEM;
2546 goto finish;
2547 }
2548
2549 dbus_message_unref(reply);
2550 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2551 log_error("Failed to issue method call: %s", error.message);
2552 r = -EIO;
2553 goto finish;
2554 }
2555
2556 if (!dbus_message_iter_init(reply, &iter) ||
2557 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2558 log_error("Failed to parse reply.");
2559 r = -EIO;
2560 goto finish;
2561 }
2562
2563 dbus_message_iter_recurse(&iter, &sub);
2564
2565 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2566 log_error("Failed to parse reply.");
2567 r = -EIO;
2568 goto finish;
2569 }
2570
2571 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 2572
2573 if (!arg_quiet)
2574 puts(id);
7e4249b9
LP		 2575 r = 0;
2576
2577finish:
2578 if (m)
2579 dbus_message_unref(m);
2580
2581 if (reply)
2582 dbus_message_unref(reply);
2583
2584 dbus_error_free(&error);
2585
2586 return r;
2587}
2588
6759e7a7
LP		 2589static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2590 DBusMessage *m = NULL, *reply = NULL;
2591 int r;
2592 DBusError error;
2593 unsigned i;
2594
2595 assert(bus);
2596 assert(args);
2597
2598 dbus_error_init(&error);
2599
2600 for (i = 1; i < n; i++) {
2601 const char *path = NULL;
2602
2603 if (!(m = dbus_message_new_method_call(
2604 "org.freedesktop.systemd1",
2605 "/org/freedesktop/systemd1",
2606 "org.freedesktop.systemd1.Manager",
2607 "GetUnit"))) {
2608 log_error("Could not allocate message.");
2609 r = -ENOMEM;
2610 goto finish;
2611 }
2612
2613 if (!dbus_message_append_args(m,
2614 DBUS_TYPE_STRING, &args[i],
2615 DBUS_TYPE_INVALID)) {
2616 log_error("Could not append arguments to message.");
2617 r = -ENOMEM;
2618 goto finish;
2619 }
2620
2621 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2622 log_error("Failed to issue method call: %s", error.message);
2623 r = -EIO;
2624 goto finish;
2625 }
2626
2627 if (!dbus_message_get_args(reply, &error,
2628 DBUS_TYPE_OBJECT_PATH, &path,
2629 DBUS_TYPE_INVALID)) {
2630 log_error("Failed to parse reply: %s", error.message);
2631 r = -EIO;
2632 goto finish;
2633 }
2634
2635 dbus_message_unref(m);
2636 if (!(m = dbus_message_new_method_call(
2637 "org.freedesktop.systemd1",
2638 path,
2639 "org.freedesktop.systemd1.Snapshot",
2640 "Remove"))) {
2641 log_error("Could not allocate message.");
2642 r = -ENOMEM;
2643 goto finish;
2644 }
2645
2646 dbus_message_unref(reply);
2647 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2648 log_error("Failed to issue method call: %s", error.message);
2649 r = -EIO;
2650 goto finish;
2651 }
2652
2653 dbus_message_unref(m);
2654 dbus_message_unref(reply);
2655 m = reply = NULL;
2656 }
2657
2658 r = 0;
2659
2660finish:
2661 if (m)
2662 dbus_message_unref(m);
2663
2664 if (reply)
2665 dbus_message_unref(reply);
2666
2667 dbus_error_free(&error);
2668
2669 return r;
2670}
2671
ee5762e3 2672static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 2673 DBusMessage *m = NULL, *reply = NULL;
2674 DBusError error;
2675 int r;
2676 const char *method;
2677
2678 dbus_error_init(&error);
2679
e4b61340
LP		 2680 if (arg_action == ACTION_RELOAD)
2681 method = "Reload";
2682 else if (arg_action == ACTION_REEXEC)
2683 method = "Reexecute";
2684 else {
2685 assert(arg_action == ACTION_SYSTEMCTL);
2686
2687 method =
ee5762e3
LP		 2688 streq(args[0], "clear-jobs") ||
2689 streq(args[0], "cancel") ? "ClearJobs" :
5632e374
LP		 2690 streq(args[0], "daemon-reexec") ? "Reexecute" :
2691 streq(args[0], "reset-maintenance") ? "ResetMaintenance" :
ee5762e3
LP		 2692 streq(args[0], "daemon-exit") ? "Exit" :
2693 "Reload";
e4b61340 2694 }
7e4249b9
LP		 2695
2696 if (!(m = dbus_message_new_method_call(
2697 "org.freedesktop.systemd1",
2698 "/org/freedesktop/systemd1",
2699 "org.freedesktop.systemd1.Manager",
2700 method))) {
2701 log_error("Could not allocate message.");
2702 return -ENOMEM;
2703 }
2704
2705 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 2706
2707 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2708 /* There's always a fallback possible for
2709 * legacy actions. */
2710 r = 0;
2711 goto finish;
2712 }
2713
7e4249b9
LP		 2714 log_error("Failed to issue method call: %s", error.message);
2715 r = -EIO;
2716 goto finish;
2717 }
2718
e4b61340 2719 r = 1;
7e4249b9
LP		 2720
2721finish:
2722 if (m)
2723 dbus_message_unref(m);
2724
2725 if (reply)
2726 dbus_message_unref(reply);
2727
2728 dbus_error_free(&error);
2729
2730 return r;
2731}
2732
5632e374
LP		 2733static int reset_maintenance(DBusConnection *bus, char **args, unsigned n) {
2734 DBusMessage *m = NULL, *reply = NULL;
2735 unsigned i;
2736 int r;
2737 DBusError error;
2738
2739 assert(bus);
2740 dbus_error_init(&error);
2741
2742 if (n <= 1)
ee5762e3 2743 return daemon_reload(bus, args, n);
5632e374
LP		 2744
2745 for (i = 1; i < n; i++) {
2746
2747 if (!(m = dbus_message_new_method_call(
2748 "org.freedesktop.systemd1",
2749 "/org/freedesktop/systemd1",
2750 "org.freedesktop.systemd1.Manager",
2751 "ResetMaintenanceUnit"))) {
2752 log_error("Could not allocate message.");
2753 r = -ENOMEM;
2754 goto finish;
2755 }
2756
2757 if (!dbus_message_append_args(m,
2758 DBUS_TYPE_STRING, args + i,
2759 DBUS_TYPE_INVALID)) {
2760 log_error("Could not append arguments to message.");
2761 r = -ENOMEM;
2762 goto finish;
2763 }
2764
2765 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2766 log_error("Failed to issue method call: %s", error.message);
2767 r = -EIO;
2768 goto finish;
2769 }
2770
2771 dbus_message_unref(m);
2772 dbus_message_unref(reply);
2773 m = reply = NULL;
2774 }
2775
2776 r = 0;
2777
2778finish:
2779 if (m)
2780 dbus_message_unref(m);
2781
2782 if (reply)
2783 dbus_message_unref(reply);
2784
2785 dbus_error_free(&error);
2786
2787 return r;
2788}
2789
7e4249b9
LP		 2790static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
2791 DBusMessage *m = NULL, *reply = NULL;
2792 DBusError error;
2793 DBusMessageIter iter, sub, sub2;
2794 int r;
2795 const char
2796 *interface = "org.freedesktop.systemd1.Manager",
2797 *property = "Environment";
2798
2799 dbus_error_init(&error);
2800
2801 if (!(m = dbus_message_new_method_call(
2802 "org.freedesktop.systemd1",
2803 "/org/freedesktop/systemd1",
2804 "org.freedesktop.DBus.Properties",
2805 "Get"))) {
2806 log_error("Could not allocate message.");
2807 return -ENOMEM;
2808 }
2809
2810 if (!dbus_message_append_args(m,
2811 DBUS_TYPE_STRING, &interface,
2812 DBUS_TYPE_STRING, &property,
2813 DBUS_TYPE_INVALID)) {
2814 log_error("Could not append arguments to message.");
2815 r = -ENOMEM;
2816 goto finish;
2817 }
2818
2819 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2820 log_error("Failed to issue method call: %s", error.message);
2821 r = -EIO;
2822 goto finish;
2823 }
2824
2825 if (!dbus_message_iter_init(reply, &iter) ||
2826 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2827 log_error("Failed to parse reply.");
2828 r = -EIO;
2829 goto finish;
2830 }
2831
2832 dbus_message_iter_recurse(&iter, &sub);
2833
2834 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
2835 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
2836 log_error("Failed to parse reply.");
2837 r = -EIO;
2838 goto finish;
2839 }
2840
2841 dbus_message_iter_recurse(&sub, &sub2);
2842
2843 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
2844 const char *text;
2845
2846 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
2847 log_error("Failed to parse reply.");
2848 r = -EIO;
2849 goto finish;
2850 }
2851
2852 dbus_message_iter_get_basic(&sub2, &text);
2853 printf("%s\n", text);
2854
2855 dbus_message_iter_next(&sub2);
2856 }
2857
2858 r = 0;
2859
2860finish:
2861 if (m)
2862 dbus_message_unref(m);
2863
2864 if (reply)
2865 dbus_message_unref(reply);
2866
2867 dbus_error_free(&error);
2868
2869 return r;
2870}
2871
2872static int set_environment(DBusConnection *bus, char **args, unsigned n) {
2873 DBusMessage *m = NULL, *reply = NULL;
2874 DBusError error;
2875 int r;
2876 const char *method;
2877 DBusMessageIter iter, sub;
2878 unsigned i;
2879
2880 dbus_error_init(&error);
2881
2882 method = streq(args[0], "set-environment")
2883 ? "SetEnvironment"
2884 : "UnsetEnvironment";
2885
2886 if (!(m = dbus_message_new_method_call(
2887 "org.freedesktop.systemd1",
2888 "/org/freedesktop/systemd1",
2889 "org.freedesktop.systemd1.Manager",
2890 method))) {
2891
2892 log_error("Could not allocate message.");
2893 return -ENOMEM;
2894 }
2895
2896 dbus_message_iter_init_append(m, &iter);
2897
2898 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
2899 log_error("Could not append arguments to message.");
2900 r = -ENOMEM;
2901 goto finish;
2902 }
2903
2904 for (i = 1; i < n; i++)
2905 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
2906 log_error("Could not append arguments to message.");
2907 r = -ENOMEM;
2908 goto finish;
2909 }
2910
2911 if (!dbus_message_iter_close_container(&iter, &sub)) {
2912 log_error("Could not append arguments to message.");
2913 r = -ENOMEM;
2914 goto finish;
2915 }
2916
2917 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2918 log_error("Failed to issue method call: %s", error.message);
2919 r = -EIO;
2920 goto finish;
2921 }
2922
2923 r = 0;
2924
2925finish:
2926 if (m)
2927 dbus_message_unref(m);
2928
2929 if (reply)
2930 dbus_message_unref(reply);
2931
2932 dbus_error_free(&error);
2933
2934 return r;
2935}
2936
ee5762e3
LP		 2937typedef struct {
2938 char *name;
2939 char *path;
2940
2941 char **aliases;
2942 char **wanted_by;
2943} InstallInfo;
2944
2945static Hashmap *will_install = NULL, *have_installed = NULL;
2946static Set *remove_symlinks_to = NULL;
2947
2948static void install_info_free(InstallInfo *i) {
2949 assert(i);
2950
2951 free(i->name);
2952 free(i->path);
2953 strv_free(i->aliases);
2954 strv_free(i->wanted_by);
2955 free(i);
2956}
2957
2958static void install_info_hashmap_free(Hashmap *m) {
2959 InstallInfo *i;
2960
2961 while ((i = hashmap_steal_first(m)))
2962 install_info_free(i);
2963
2964 hashmap_free(m);
2965}
2966
2967static bool unit_name_valid(const char *name) {
2968
2969 /* This is a minimal version of unit_name_valid() from
2970 * unit-name.c */
2971
2972 if (!*name)
2973 return false;
2974
2975 if (ignore_file(name))
2976 return false;
2977
2978 return true;
2979}
2980
2981static int install_info_add(const char *name) {
2982 InstallInfo *i;
2983 int r;
2984
2985 assert(will_install);
2986
2987 if (!unit_name_valid(name))
2988 return -EINVAL;
2989
2990 if (hashmap_get(have_installed, name) ||
2991 hashmap_get(will_install, name))
2992 return 0;
2993
2994 if (!(i = new0(InstallInfo, 1))) {
2995 r = -ENOMEM;
2996 goto fail;
2997 }
2998
2999 if (!(i->name = strdup(name))) {
3000 r = -ENOMEM;
3001 goto fail;
3002 }
3003
3004 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3005 goto fail;
3006
3007 return 0;
3008
3009fail:
3010 if (i)
3011 install_info_free(i);
3012
3013 return r;
3014}
3015
3016static int config_parse_also(
3017 const char *filename,
3018 unsigned line,
3019 const char *section,
3020 const char *lvalue,
3021 const char *rvalue,
3022 void *data,
3023 void *userdata) {
3024
3025 char *w;
3026 size_t l;
3027 char *state;
3028
3029 assert(filename);
3030 assert(lvalue);
3031 assert(rvalue);
3032
3033 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3034 char *n;
3035 int r;
3036
3037 if (!(n = strndup(w, l)))
3038 return -ENOMEM;
3039
3040 r = install_info_add(n);
3041 free(n);
3042
3043 if (r < 0)
3044 return r;
3045 }
3046
3047 return 0;
3048}
3049
3050static int mark_symlink_for_removal(const char *p) {
3051 char *n;
3052 int r;
3053
3054 assert(p);
3055 assert(path_is_absolute(p));
3056
3057 if (!remove_symlinks_to)
3058 return 0;
3059
3060 if (!(n = strdup(p)))
3061 return -ENOMEM;
3062
3063 path_kill_slashes(n);
3064
3065 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3066 free(n);
3067 return r == -EEXIST ? 0 : r;
3068 }
3069
3070 return 0;
3071}
3072
3073static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3074 int r = 0;
3075 DIR *d;
3076 struct dirent *de;
3077
3078 assert(fd >= 0);
3079 assert(root);
3080 assert(deleted);
3081
3082 if (!(d = fdopendir(fd))) {
3083 close_nointr_nofail(fd);
3084 return -errno;
3085 }
3086
3087 rewinddir(d);
3088
3089 while ((de = readdir(d))) {
3090 bool is_dir = false, is_link = false;
3091
3092 if (ignore_file(de->d_name))
3093 continue;
3094
3095 if (de->d_type == DT_LNK)
3096 is_link = true;
3097 else if (de->d_type == DT_DIR)
3098 is_dir = true;
3099 else if (de->d_type == DT_UNKNOWN) {
3100 struct stat st;
3101
3102 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3103 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3104
3105 if (r == 0)
3106 r = -errno;
3107 continue;
3108 }
3109
3110 is_link = S_ISLNK(st.st_mode);
3111 is_dir = S_ISDIR(st.st_mode);
3112 } else
3113 continue;
3114
3115 if (is_dir) {
3116 int nfd, q;
3117 char *p;
3118
3119 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3120 log_error("Failed to open %s/%s: %m", root, de->d_name);
3121
3122 if (r == 0)
3123 r = -errno;
3124 continue;
3125 }
3126
3127 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3128 log_error("Failed to allocate directory string.");
3129 close_nointr_nofail(nfd);
3130 r = -ENOMEM;
3131 break;
3132 }
3133
3134 /* This will close nfd, regardless whether it succeeds or not */
3135 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3136 free(p);
3137
3138 if (r == 0)
3139 q = r;
3140
3141 } else if (is_link) {
3142 char *p, *dest, *c;
3143 int q;
3144
3145 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3146 log_error("Failed to allocate symlink string.");
3147 r = -ENOMEM;
3148 break;
3149 }
3150
3151 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3152 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3153 free(p);
3154
3155 if (r == 0)
3156 r = q;
3157 continue;
3158 }
3159
3160 if ((c = canonicalize_file_name(dest))) {
3161 /* This might fail if the destination
3162 * is already removed */
3163
3164 free(dest);
3165 dest = c;
3166 }
3167
3168 path_kill_slashes(dest);
3169 if (set_get(remove_symlinks_to, dest)) {
3170
3171 if (!arg_quiet)
3172 log_info("rm '%s'", p);
3173
3174 if (unlink(p) < 0) {
3175 log_error("Cannot unlink symlink %s: %m", p);
3176
3177 if (r == 0)
3178 r = -errno;
3179 } else {
3180 rmdir_parents(p, config_path);
3181 path_kill_slashes(p);
3182
3183 if (!set_get(remove_symlinks_to, p)) {
3184
3185 if ((r = mark_symlink_for_removal(p)) < 0) {
3186 if (r == 0)
3187 r = q;
3188 } else
3189 *deleted = true;
3190 }
3191 }
3192 }
3193
3194 free(p);
3195 free(dest);
3196 }
3197 }
3198
3199 closedir(d);
3200
3201 return r;
3202}
3203
3204static int remove_marked_symlinks(const char *config_path) {
3205 int fd, r = 0;
3206 bool deleted;
3207
3208 assert(config_path);
3209
3210 if (set_size(remove_symlinks_to) <= 0)
3211 return 0;
3212
3213 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3214 return -errno;
3215
3216 do {
3217 int q, cfd;
3218 deleted = false;
3219
3220 if ((cfd = dup(fd)) < 0) {
3221 r = -errno;
3222 break;
3223 }
3224
3225 /* This takes possession of cfd and closes it */
3226 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3227 if (r == 0)
3228 r = q;
3229 }
3230 } while (deleted);
3231
3232 close_nointr_nofail(fd);
3233
3234 return r;
3235}
3236
3237static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3238 int r;
3239
3240 assert(old_path);
3241 assert(new_path);
3242 assert(verb);
3243
3244 if (streq(verb, "enable")) {
3245 char *dest;
3246
3247 mkdir_parents(new_path, 0755);
3248
3249 if (symlink(old_path, new_path) >= 0) {
3250
3251 if (!arg_quiet)
3252 log_info("ln -s '%s' '%s'", old_path, new_path);
3253
3254 return 0;
3255 }
3256
3257 if (errno != EEXIST) {
3258 log_error("Cannot link %s to %s: %m", old_path, new_path);
3259 return -errno;
3260 }
3261
3262 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3263
3264 if (errno == EINVAL) {
3265 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3266 return -EEXIST;
3267 }
3268
3269 log_error("readlink() failed: %s", strerror(-r));
3270 return r;
3271 }
3272
3273 if (streq(dest, old_path)) {
3274 free(dest);
3275 return 0;
3276 }
3277
3278 if (!arg_force) {
3279 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3280 free(dest);
3281 return -EEXIST;
3282 }
3283
3284 free(dest);
3285 unlink(new_path);
3286
3287 if (!arg_quiet)
3288 log_info("ln -s '%s' '%s'", old_path, new_path);
3289
3290 if (symlink(old_path, new_path) >= 0)
3291 return 0;
3292
3293 log_error("Cannot link %s to %s: %m", old_path, new_path);
3294 return -errno;
3295
3296 } else if (streq(verb, "disable")) {
3297 char *dest;
3298
3299 if ((r = mark_symlink_for_removal(old_path)) < 0)
3300 return r;
3301
3302 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3303 if (errno == ENOENT)
3304 return 0;
3305
3306 if (errno == EINVAL) {
3307 log_warning("File %s not a symlink, ignoring.", old_path);
3308 return 0;
3309 }
3310
3311 log_error("readlink() failed: %s", strerror(-r));
3312 return r;
3313 }
3314
3315 if (!streq(dest, old_path)) {
3316 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3317 free(dest);
3318 return 0;
3319 }
3320
3321 free(dest);
3322
3323 if ((r = mark_symlink_for_removal(new_path)) < 0)
3324 return r;
3325
3326 if (!arg_quiet)
3327 log_info("rm '%s'", new_path);
3328
3329 if (unlink(new_path) >= 0)
3330 return 0;
3331
3332 log_error("Cannot unlink %s: %m", new_path);
3333 return -errno;
3334
3335 } else if (streq(verb, "is-enabled")) {
3336 char *dest;
3337
3338 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3339
3340 if (errno == ENOENT || errno == EINVAL)
3341 return 0;
3342
3343 log_error("readlink() failed: %s", strerror(-r));
3344 return r;
3345 }
3346
3347 if (streq(dest, old_path)) {
3348 free(dest);
3349 return 1;
3350 }
3351
3352 return 0;
3353 }
3354
3355 assert_not_reached("Unknown action.");
3356}
3357
3358static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3359 char **s;
3360 char *alias_path = NULL;
3361 int r;
3362
3363 assert(verb);
3364 assert(i);
3365 assert(config_path);
3366
3367 STRV_FOREACH(s, i->aliases) {
3368
3369 if (!unit_name_valid(*s)) {
3370 log_error("Invalid name %s.", *s);
3371 r = -EINVAL;
3372 goto finish;
3373 }
3374
3375 free(alias_path);
3376 if (!(alias_path = path_make_absolute(*s, config_path))) {
3377 log_error("Out of memory");
3378 r = -ENOMEM;
3379 goto finish;
3380 }
3381
3382 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3383 goto finish;
3384
3385 if (streq(verb, "disable"))
3386 rmdir_parents(alias_path, config_path);
3387 }
3388
3389 r = 0;
3390
3391finish:
3392 free(alias_path);
3393
3394 return r;
3395}
3396
3397static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3398 char **s;
3399 char *alias_path = NULL;
3400 int r;
3401
3402 assert(verb);
3403 assert(i);
3404 assert(config_path);
3405
3406 STRV_FOREACH(s, i->wanted_by) {
3407 if (!unit_name_valid(*s)) {
3408 log_error("Invalid name %s.", *s);
3409 r = -EINVAL;
3410 goto finish;
3411 }
3412
3413 free(alias_path);
3414 alias_path = NULL;
3415
3416 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3417 log_error("Out of memory");
3418 r = -ENOMEM;
3419 goto finish;
3420 }
3421
3422 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3423 goto finish;
3424
3425 if (streq(verb, "disable"))
3426 rmdir_parents(alias_path, config_path);
3427 }
3428
3429 r = 0;
3430
3431finish:
3432 free(alias_path);
3433
3434 return r;
3435}
3436
3437static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3438
3439 const ConfigItem items[] = {
3440 { "Alias", config_parse_strv, &i->aliases, "Install" },
3441 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3442 { "Also", config_parse_also, NULL, "Install" },
3443
3444 { NULL, NULL, NULL, NULL }
3445 };
3446
3447 char **p;
3448 char *filename = NULL;
3449 FILE *f = NULL;
3450 int r;
3451
3452 assert(paths);
3453 assert(i);
3454
3455 STRV_FOREACH(p, paths->unit_path) {
3456 int fd;
3457
3458 if (!(filename = path_make_absolute(i->name, *p))) {
3459 log_error("Out of memory");
3460 return -ENOMEM;
3461 }
3462
3463 /* Ensure that we don't follow symlinks */
3464 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3465 if ((f = fdopen(fd, "re")))
3466 break;
3467
3468 if (errno == ELOOP) {
3469 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3470 free(filename);
3471 return -errno;
3472 }
3473
3474 if (errno != ENOENT) {
3475 log_error("Failed to open %s: %m", filename);
3476 free(filename);
3477 return -errno;
3478 }
3479
3480 free(filename);
3481 filename = NULL;
3482 }
3483
3484 if (!f) {
3485 log_error("Couldn't find %s.", i->name);
3486 return -ENOENT;
3487 }
3488
3489 i->path = filename;
3490
3491 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3492 fclose(f);
3493 return r;
3494 }
3495
3496 fclose(f);
3497
3498 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3499 return r;
3500
3501 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3502 return r;
3503
3504 if ((r = mark_symlink_for_removal(filename)) < 0)
3505 return r;
3506
3507 if ((r = remove_marked_symlinks(config_path)) < 0)
3508 return r;
3509
3510 return 0;
3511}
3512
3513static char *get_config_path(void) {
3514
3515 if (arg_session && arg_global)
3516 return strdup(SESSION_CONFIG_UNIT_PATH);
3517
3518 if (arg_session) {
3519 char *p;
3520
3521 if (session_config_home(&p) < 0)
3522 return NULL;
3523
3524 return p;
3525 }
3526
3527 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3528}
3529
3530static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3531 DBusError error;
3532 int r;
3533 LookupPaths paths;
3534 char *config_path = NULL;
3535 unsigned j;
3536 InstallInfo *i;
3537 const char *verb = args[0];
3538
3539 dbus_error_init(&error);
3540
3541 zero(paths);
3542 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3543 log_error("Failed to determine lookup paths: %s", strerror(-r));
3544 goto finish;
3545 }
3546
3547 if (!(config_path = get_config_path())) {
3548 log_error("Failed to determine config path");
3549 r = -ENOMEM;
3550 goto finish;
3551 }
3552
3553 will_install = hashmap_new(string_hash_func, string_compare_func);
3554 have_installed = hashmap_new(string_hash_func, string_compare_func);
3555
3556 if (!will_install || !have_installed) {
3557 log_error("Failed to allocate unit sets.");
3558 r = -ENOMEM;
3559 goto finish;
3560 }
3561
3562 if (!arg_defaults && streq(verb, "disable"))
3563 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3564 log_error("Failed to allocate symlink sets.");
3565 r = -ENOMEM;
3566 goto finish;
3567 }
3568
3569 for (j = 1; j < n; j++)
3570 if ((r = install_info_add(args[j])) < 0)
3571 goto finish;
3572
3573 while ((i = hashmap_first(will_install))) {
3574 int q;
3575
3576 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3577
3578 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3579
3580 if (q < 0) {
3581 if (r == 0)
3582 r = q;
3583 goto finish;
3584 }
3585
3586 /* In test mode and found something */
3587 r = 1;
3588 break;
3589 }
3590 }
3591
3592 if (streq(verb, "is-enabled"))
3593 r = r > 0 ? 0 : -ENOENT;
3594 else if (bus &&
3595 /* Don't try to reload anything if the user asked us to not do this */
3596 !arg_no_reload &&
3597 /* Don't try to reload anything when updating a unit globally */
3598 !arg_global &&
3599 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3600 (arg_session || sd_booted() > 0) &&
3601 /* Don't try to reload anything if we are running in a chroot environment */
3602 (arg_session || running_in_chroot() <= 0) ) {
3603 int q;
3604
3605 if ((q = daemon_reload(bus, args, n)) < 0)
3606 r = q;
3607 }
3608
3609finish:
3610 install_info_hashmap_free(will_install);
3611 install_info_hashmap_free(have_installed);
3612
3613 set_free_free(remove_symlinks_to);
3614
3615 lookup_paths_free(&paths);
3616
3617 free(config_path);
3618
3619 return r;
3620}
3621
e4b61340 3622static int systemctl_help(void) {
7e4249b9 3623
2e33c433 3624 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 3625 "Send control commands to or query the systemd manager.\n\n"
48220598
LP		 3626 " -h --help Show this help\n"
3627 " -t --type=TYPE List only units of a particular type\n"
393a2f9b 3628 " -p --property=NAME Show only properties by this name\n"
48220598 3629 " -a --all Show all units/properties, including dead/empty ones\n"
ee5762e3
LP		 3630 " --full Don't ellipsize unit names on output\n"
3631 " --fail When queueing a new job, fail if conflicting jobs are\n"
6f28c033 3632 " pending\n"
ee5762e3
LP		 3633 " -q --quiet Suppress output\n"
3634 " --no-block Do not wait until operation finished\n"
48220598
LP		 3635 " --system Connect to system bus\n"
3636 " --session Connect to session bus\n"
4445a875 3637 " --order When generating graph for dot, show only order\n"
ee5762e3
LP		 3638 " --require When generating graph for dot, show only requirement\n"
3639 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3640 " --global Enable/disable unit files globally\n"
3641 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3642 " configuration\n"
3643 " --force When enabling unit files, override existing symlinks\n"
3644 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 3645 "Commands:\n"
3646 " list-units List units\n"
ee5762e3
LP		 3647 " start [NAME...] Start (activate) one or more units\n"
3648 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 3649 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 3650 " restart [NAME...] Start or restart one or more units\n"
3651 " try-restart [NAME...] Restart one or more units if active\n"
3652 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3653 " otherwise start or restart\n"
3654 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3655 " otherwise restart if active\n"
7e4249b9 3656 " isolate [NAME] Start one unit and stop all others\n"
ee5762e3
LP		 3657 " is-active [NAME...] Check whether units are active\n"
3658 " status [NAME...] Show runtime status of one or more units\n"
6f28c033 3659 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3
LP		 3660 " units/jobs or the manager\n"
3661 " reset-maintenance [NAME...] Reset maintenance state for all, one,\n"
5632e374 3662 " or more units\n"
ee5762e3
LP		 3663 " enable [NAME...] Enable one or more unit files\n"
3664 " disable [NAME...] Disable one or more unit files\n"
3665 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 3666 " load [NAME...] Load one or more units\n"
3667 " list-jobs List jobs\n"
ee5762e3 3668 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 3669 " monitor Monitor unit/job changes\n"
3670 " dump Dump server status\n"
4445a875 3671 " dot Dump dependency graph for dot(1)\n"
7e4249b9 3672 " snapshot [NAME] Create a snapshot\n"
6759e7a7 3673 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 3674 " daemon-reload Reload systemd manager configuration\n"
3675 " daemon-reexec Reexecute systemd manager\n"
3676 " daemon-exit Ask the systemd manager to quit\n"
7e4249b9
LP		 3677 " show-environment Dump environment\n"
3678 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5
LP		 3679 " unset-environment [NAME...] Unset one or more environment variables\n"
3680 " halt Shut down and halt the system\n"
2e33c433 3681 " poweroff Shut down and power-off the system\n"
514f4ef5 3682 " reboot Shut down and reboot the system\n"
6f28c033
LP		 3683 " rescue Enter system rescue mode\n"
3684 " emergency Enter system emergency mode\n"
3685 " default Enter system default mode\n",
5b6319dc 3686 program_invocation_short_name);
7e4249b9
LP		 3687
3688 return 0;
3689}
3690
e4b61340
LP		 3691static int halt_help(void) {
3692
2e33c433 3693 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3694 "%s the system.\n\n"
3695 " --help Show this help\n"
3696 " --halt Halt the machine\n"
3697 " -p --poweroff Switch off the machine\n"
3698 " --reboot Reboot the machine\n"
2e33c433
LP		 3699 " -f --force Force immediate halt/power-off/reboot\n"
3700 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 3701 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 3702 " -n --no-sync Don't sync before halt/power-off/reboot\n"
3703 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 3704 program_invocation_short_name,
3705 arg_action == ACTION_REBOOT ? "Reboot" :
3706 arg_action == ACTION_POWEROFF ? "Power off" :
3707 "Halt");
3708
3709 return 0;
3710}
3711
3712static int shutdown_help(void) {
3713
2e33c433 3714 printf("%s [OPTIONS...] [now] [WALL...]\n\n"
e4b61340
LP		 3715 "Shut down the system.\n\n"
3716 " --help Show this help\n"
3717 " -H --halt Halt the machine\n"
3718 " -P --poweroff Power-off the machine\n"
3719 " -r --reboot Reboot the machine\n"
3720 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433
LP		 3721 " -k Don't halt/power-off/reboot, just send warnings\n"
3722 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 3723 program_invocation_short_name);
3724
3725 return 0;
3726}
3727
3728static int telinit_help(void) {
3729
2e33c433 3730 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 3731 "Send control commands to the init daemon.\n\n"
3732 " --help Show this help\n"
2e33c433 3733 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 3734 "Commands:\n"
3735 " 0 Power-off the machine\n"
3736 " 6 Reboot the machine\n"
514f4ef5
LP		 3737 " 2, 3, 4, 5 Start runlevelX.target unit\n"
3738 " 1, s, S Enter rescue mode\n"
3739 " q, Q Reload init daemon configuration\n"
3740 " u, U Reexecute init daemon\n",
e4b61340
LP		 3741 program_invocation_short_name);
3742
3743 return 0;
3744}
3745
3746static int runlevel_help(void) {
3747
2e33c433 3748 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3749 "Prints the previous and current runlevel of the init system.\n\n"
3750 " --help Show this help\n",
3751 program_invocation_short_name);
3752
3753 return 0;
3754}
3755
3756static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 3757
3758 enum {
90d473a1 3759 ARG_FAIL = 0x100,
7e4249b9
LP		 3760 ARG_SESSION,
3761 ARG_SYSTEM,
ee5762e3 3762 ARG_GLOBAL,
6e905d93 3763 ARG_NO_BLOCK,
4445a875
LP		 3764 ARG_NO_WALL,
3765 ARG_ORDER,
8fe914ec 3766 ARG_REQUIRE,
ee5762e3
LP		 3767 ARG_FULL,
3768 ARG_FORCE,
3769 ARG_NO_RELOAD,
3770 ARG_DEFAULTS
7e4249b9
LP		 3771 };
3772
3773 static const struct option options[] = {
ee5762e3
LP		 3774 { "help", no_argument, NULL, 'h' },
3775 { "type", required_argument, NULL, 't' },
3776 { "property", required_argument, NULL, 'p' },
3777 { "all", no_argument, NULL, 'a' },
3778 { "full", no_argument, NULL, ARG_FULL },
3779 { "fail", no_argument, NULL, ARG_FAIL },
3780 { "session", no_argument, NULL, ARG_SESSION },
3781 { "system", no_argument, NULL, ARG_SYSTEM },
3782 { "global", no_argument, NULL, ARG_GLOBAL },
3783 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
3784 { "no-wall", no_argument, NULL, ARG_NO_WALL },
3785 { "quiet", no_argument, NULL, 'q' },
3786 { "order", no_argument, NULL, ARG_ORDER },
3787 { "require", no_argument, NULL, ARG_REQUIRE },
3788 { "force", no_argument, NULL, ARG_FORCE },
3789 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
3790 { "defaults", no_argument, NULL, ARG_DEFAULTS },
3791 { NULL, 0, NULL, 0 }
7e4249b9
LP		 3792 };
3793
3794 int c;
3795
e4b61340 3796 assert(argc >= 0);
7e4249b9
LP		 3797 assert(argv);
3798
48220598 3799 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
7e4249b9
LP		 3800
3801 switch (c) {
3802
3803 case 'h':
e4b61340 3804 systemctl_help();
7e4249b9
LP		 3805 return 0;
3806
3807 case 't':
3808 arg_type = optarg;
3809 break;
3810
ea4a240d
LP		 3811 case 'p': {
3812 char **l;
3813
3814 if (!(l = strv_append(arg_property, optarg)))
3815 return -ENOMEM;
3816
3817 strv_free(arg_property);
3818 arg_property = l;
48220598
LP		 3819
3820 /* If the user asked for a particular
3821 * property, show it to him, even if it is
3822 * empty. */
3823 arg_all = true;
3824 break;
ea4a240d 3825 }
48220598 3826
7e4249b9
LP		 3827 case 'a':
3828 arg_all = true;
3829 break;
3830
90d473a1
LP		 3831 case ARG_FAIL:
3832 arg_fail = true;
7e4249b9
LP		 3833 break;
3834
3835 case ARG_SESSION:
3836 arg_session = true;
3837 break;
3838
3839 case ARG_SYSTEM:
3840 arg_session = false;
3841 break;
3842
6e905d93
LP		 3843 case ARG_NO_BLOCK:
3844 arg_no_block = true;
7e4249b9
LP		 3845 break;
3846
514f4ef5
LP		 3847 case ARG_NO_WALL:
3848 arg_no_wall = true;
3849 break;
3850
4445a875
LP		 3851 case ARG_ORDER:
3852 arg_dot = DOT_ORDER;
3853 break;
3854
3855 case ARG_REQUIRE:
3856 arg_dot = DOT_REQUIRE;
3857 break;
3858
8fe914ec
LP		 3859 case ARG_FULL:
3860 arg_full = true;
3861 break;
3862
0183528f
LP		 3863 case 'q':
3864 arg_quiet = true;
3865 break;
3866
ee5762e3
LP		 3867 case ARG_FORCE:
3868 arg_force = true;
3869 break;
3870
3871 case ARG_NO_RELOAD:
3872 arg_no_reload = true;
3873 break;
3874
3875 case ARG_GLOBAL:
3876 arg_global = true;
3877 arg_session = true;
3878 break;
3879
3880 case ARG_DEFAULTS:
3881 arg_defaults = true;
3882 break;
3883
7e4249b9
LP		 3884 case '?':
3885 return -EINVAL;
3886
3887 default:
3888 log_error("Unknown option code %c", c);
3889 return -EINVAL;
3890 }
3891 }
3892
3893 return 1;
3894}
3895
e4b61340
LP		 3896static int halt_parse_argv(int argc, char *argv[]) {
3897
3898 enum {
3899 ARG_HELP = 0x100,
3900 ARG_HALT,
514f4ef5
LP		 3901 ARG_REBOOT,
3902 ARG_NO_WALL
e4b61340
LP		 3903 };
3904
3905 static const struct option options[] = {
3906 { "help", no_argument, NULL, ARG_HELP },
3907 { "halt", no_argument, NULL, ARG_HALT },
3908 { "poweroff", no_argument, NULL, 'p' },
3909 { "reboot", no_argument, NULL, ARG_REBOOT },
3910 { "force", no_argument, NULL, 'f' },
3911 { "wtmp-only", no_argument, NULL, 'w' },
3912 { "no-wtmp", no_argument, NULL, 'd' },
3913 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 3914 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 3915 { NULL, 0, NULL, 0 }
3916 };
3917
3918 int c, runlevel;
3919
3920 assert(argc >= 0);
3921 assert(argv);
3922
3923 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
3924 if (runlevel == '0' || runlevel == '6')
3925 arg_immediate = true;
3926
3927 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
3928 switch (c) {
3929
3930 case ARG_HELP:
3931 halt_help();
3932 return 0;
3933
3934 case ARG_HALT:
3935 arg_action = ACTION_HALT;
3936 break;
3937
3938 case 'p':
a042efad
MS		 3939 if (arg_action != ACTION_REBOOT)
3940 arg_action = ACTION_POWEROFF;
e4b61340
LP		 3941 break;
3942
3943 case ARG_REBOOT:
3944 arg_action = ACTION_REBOOT;
3945 break;
3946
3947 case 'f':
3948 arg_immediate = true;
3949 break;
3950
3951 case 'w':
3952 arg_dry = true;
3953 break;
3954
3955 case 'd':
3956 arg_no_wtmp = true;
3957 break;
3958
3959 case 'n':
3960 arg_no_sync = true;
3961 break;
3962
514f4ef5
LP		 3963 case ARG_NO_WALL:
3964 arg_no_wall = true;
3965 break;
3966
e4b61340
LP		 3967 case 'i':
3968 case 'h':
3969 /* Compatibility nops */
3970 break;
3971
3972 case '?':
3973 return -EINVAL;
3974
3975 default:
3976 log_error("Unknown option code %c", c);
3977 return -EINVAL;
3978 }
3979 }
3980
3981 if (optind < argc) {
3982 log_error("Too many arguments.");
3983 return -EINVAL;
3984 }
3985
3986 return 1;
3987}
3988
3989static int shutdown_parse_argv(int argc, char *argv[]) {
3990
3991 enum {
3992 ARG_HELP = 0x100,
514f4ef5 3993 ARG_NO_WALL
e4b61340
LP		 3994 };
3995
3996 static const struct option options[] = {
3997 { "help", no_argument, NULL, ARG_HELP },
3998 { "halt", no_argument, NULL, 'H' },
3999 { "poweroff", no_argument, NULL, 'P' },
4000 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4001 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4002 { NULL, 0, NULL, 0 }
4003 };
4004
4005 int c;
4006
4007 assert(argc >= 0);
4008 assert(argv);
4009
4010 while ((c = getopt_long(argc, argv, "HPrhkt:a", options, NULL)) >= 0) {
4011 switch (c) {
4012
4013 case ARG_HELP:
4014 shutdown_help();
4015 return 0;
4016
4017 case 'H':
4018 arg_action = ACTION_HALT;
4019 break;
4020
4021 case 'P':
4022 arg_action = ACTION_POWEROFF;
4023 break;
4024
4025 case 'r':
4026 arg_action = ACTION_REBOOT;
4027 break;
4028
4029 case 'h':
4030 if (arg_action != ACTION_HALT)
4031 arg_action = ACTION_POWEROFF;
4032 break;
4033
4034 case 'k':
4035 arg_dry = true;
4036 break;
4037
514f4ef5
LP		 4038 case ARG_NO_WALL:
4039 arg_no_wall = true;
4040 break;
4041
e4b61340
LP		 4042 case 't':
4043 case 'a':
4044 /* Compatibility nops */
4045 break;
4046
4047 case '?':
4048 return -EINVAL;
4049
4050 default:
4051 log_error("Unknown option code %c", c);
4052 return -EINVAL;
4053 }
4054 }
4055
4545812f
LP		 4056 if (argc > optind && !streq(argv[optind], "now"))
4057 log_warning("First argument '%s' isn't 'now'. Ignoring.", argv[optind]);
442b9094 4058
e4b61340
LP		 4059 /* We ignore the time argument */
4060 if (argc > optind + 1)
4061 arg_wall = argv + optind + 1;
4062
4063 optind = argc;
4064
4065 return 1;
e4b61340
LP		 4066}
4067
4068static int telinit_parse_argv(int argc, char *argv[]) {
4069
4070 enum {
4071 ARG_HELP = 0x100,
514f4ef5 4072 ARG_NO_WALL
e4b61340
LP		 4073 };
4074
4075 static const struct option options[] = {
4076 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4077 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4078 { NULL, 0, NULL, 0 }
4079 };
4080
4081 static const struct {
4082 char from;
4083 enum action to;
4084 } table[] = {
4085 { '0', ACTION_POWEROFF },
4086 { '6', ACTION_REBOOT },
ef2f1067 4087 { '1', ACTION_RESCUE },
e4b61340
LP		 4088 { '2', ACTION_RUNLEVEL2 },
4089 { '3', ACTION_RUNLEVEL3 },
4090 { '4', ACTION_RUNLEVEL4 },
4091 { '5', ACTION_RUNLEVEL5 },
4092 { 's', ACTION_RESCUE },
4093 { 'S', ACTION_RESCUE },
4094 { 'q', ACTION_RELOAD },
4095 { 'Q', ACTION_RELOAD },
4096 { 'u', ACTION_REEXEC },
4097 { 'U', ACTION_REEXEC }
4098 };
4099
4100 unsigned i;
4101 int c;
4102
4103 assert(argc >= 0);
4104 assert(argv);
4105
4106 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4107 switch (c) {
4108
4109 case ARG_HELP:
4110 telinit_help();
4111 return 0;
4112
514f4ef5
LP		 4113 case ARG_NO_WALL:
4114 arg_no_wall = true;
4115 break;
4116
e4b61340
LP		 4117 case '?':
4118 return -EINVAL;
4119
4120 default:
4121 log_error("Unknown option code %c", c);
4122 return -EINVAL;
4123 }
4124 }
4125
4126 if (optind >= argc) {
2f02ce40 4127 telinit_help();
e4b61340
LP		 4128 return -EINVAL;
4129 }
4130
4131 if (optind + 1 < argc) {
4132 log_error("Too many arguments.");
4133 return -EINVAL;
4134 }
4135
4136 if (strlen(argv[optind]) != 1) {
4137 log_error("Expected single character argument.");
4138 return -EINVAL;
4139 }
4140
4141 for (i = 0; i < ELEMENTSOF(table); i++)
4142 if (table[i].from == argv[optind][0])
4143 break;
4144
4145 if (i >= ELEMENTSOF(table)) {
4146 log_error("Unknown command %s.", argv[optind]);
4147 return -EINVAL;
4148 }
4149
4150 arg_action = table[i].to;
4151
4152 optind ++;
4153
4154 return 1;
4155}
4156
4157static int runlevel_parse_argv(int argc, char *argv[]) {
4158
4159 enum {
4160 ARG_HELP = 0x100,
4161 };
4162
4163 static const struct option options[] = {
4164 { "help", no_argument, NULL, ARG_HELP },
4165 { NULL, 0, NULL, 0 }
4166 };
4167
4168 int c;
4169
4170 assert(argc >= 0);
4171 assert(argv);
4172
4173 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4174 switch (c) {
4175
4176 case ARG_HELP:
4177 runlevel_help();
4178 return 0;
4179
4180 case '?':
4181 return -EINVAL;
4182
4183 default:
4184 log_error("Unknown option code %c", c);
4185 return -EINVAL;
4186 }
4187 }
4188
4189 if (optind < argc) {
4190 log_error("Too many arguments.");
4191 return -EINVAL;
4192 }
4193
4194 return 1;
4195}
4196
4197static int parse_argv(int argc, char *argv[]) {
4198 assert(argc >= 0);
4199 assert(argv);
4200
4201 if (program_invocation_short_name) {
4202
4203 if (strstr(program_invocation_short_name, "halt")) {
4204 arg_action = ACTION_HALT;
4205 return halt_parse_argv(argc, argv);
4206 } else if (strstr(program_invocation_short_name, "poweroff")) {
4207 arg_action = ACTION_POWEROFF;
4208 return halt_parse_argv(argc, argv);
4209 } else if (strstr(program_invocation_short_name, "reboot")) {
4210 arg_action = ACTION_REBOOT;
4211 return halt_parse_argv(argc, argv);
4212 } else if (strstr(program_invocation_short_name, "shutdown")) {
4213 arg_action = ACTION_POWEROFF;
4214 return shutdown_parse_argv(argc, argv);
4215 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4216
4217 if (sd_booted() > 0) {
4218 arg_action = ACTION_INVALID;
4219 return telinit_parse_argv(argc, argv);
4220 } else {
4221 /* Hmm, so some other init system is
4222 * running, we need to forward this
4223 * request to it. For now we simply
4224 * guess that it is Upstart. */
4225
4226 execv("/lib/upstart/telinit", argv);
4227
4228 log_error("Couldn't find an alternative telinit implementation to spawn.");
4229 return -EIO;
4230 }
4231
e4b61340
LP		 4232 } else if (strstr(program_invocation_short_name, "runlevel")) {
4233 arg_action = ACTION_RUNLEVEL;
4234 return runlevel_parse_argv(argc, argv);
4235 }
4236 }
4237
4238 arg_action = ACTION_SYSTEMCTL;
4239 return systemctl_parse_argv(argc, argv);
4240}
4241
d55ae9e6 4242static int action_to_runlevel(void) {
eb22ac37
LP		 4243
4244 static const char table[_ACTION_MAX] = {
4245 [ACTION_HALT] = '0',
4246 [ACTION_POWEROFF] = '0',
4247 [ACTION_REBOOT] = '6',
4248 [ACTION_RUNLEVEL2] = '2',
4249 [ACTION_RUNLEVEL3] = '3',
4250 [ACTION_RUNLEVEL4] = '4',
4251 [ACTION_RUNLEVEL5] = '5',
4252 [ACTION_RESCUE] = '1'
4253 };
4254
d55ae9e6
LP		 4255 assert(arg_action < _ACTION_MAX);
4256
4257 return table[arg_action];
4258}
4259
f1c5860b 4260static int talk_upstart(void) {
d55ae9e6
LP		 4261 DBusMessage *m = NULL, *reply = NULL;
4262 DBusError error;
4263 int previous, rl, r;
4264 char
4265 env1_buf[] = "RUNLEVEL=X",
4266 env2_buf[] = "PREVLEVEL=X";
4267 char *env1 = env1_buf, *env2 = env2_buf;
4268 const char *emit = "runlevel";
4269 dbus_bool_t b_false = FALSE;
4270 DBusMessageIter iter, sub;
f1c5860b 4271 DBusConnection *bus;
d55ae9e6
LP		 4272
4273 dbus_error_init(&error);
4274
4275 if (!(rl = action_to_runlevel()))
4276 return 0;
4277
4278 if (utmp_get_runlevel(&previous, NULL) < 0)
4279 previous = 'N';
4280
b574246b 4281 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4282 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4283 r = 0;
4284 goto finish;
4285 }
4286
4287 log_error("Failed to connect to Upstart bus: %s", error.message);
4288 r = -EIO;
4289 goto finish;
4290 }
4291
4292 if ((r = bus_check_peercred(bus)) < 0) {
4293 log_error("Failed to verify owner of bus.");
4294 goto finish;
4295 }
4296
d55ae9e6
LP		 4297 if (!(m = dbus_message_new_method_call(
4298 "com.ubuntu.Upstart",
4299 "/com/ubuntu/Upstart",
4300 "com.ubuntu.Upstart0_6",
4301 "EmitEvent"))) {
4302
4303 log_error("Could not allocate message.");
f1c5860b
LP		 4304 r = -ENOMEM;
4305 goto finish;
d55ae9e6
LP		 4306 }
4307
4308 dbus_message_iter_init_append(m, &iter);
4309
4310 env1_buf[sizeof(env1_buf)-2] = rl;
4311 env2_buf[sizeof(env2_buf)-2] = previous;
4312
4313 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4314 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4315 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4316 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4317 !dbus_message_iter_close_container(&iter, &sub) ||
4318 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4319 log_error("Could not append arguments to message.");
4320 r = -ENOMEM;
4321 goto finish;
4322 }
4323
4324 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4325
4326 if (error_is_no_service(&error)) {
4327 r = 0;
4328 goto finish;
4329 }
4330
4331 log_error("Failed to issue method call: %s", error.message);
4332 r = -EIO;
4333 goto finish;
4334 }
4335
4336 r = 1;
4337
4338finish:
4339 if (m)
4340 dbus_message_unref(m);
4341
4342 if (reply)
4343 dbus_message_unref(reply);
4344
b574246b
LP		 4345 if (bus) {
4346 dbus_connection_close(bus);
f1c5860b 4347 dbus_connection_unref(bus);
b574246b 4348 }
f1c5860b 4349
d55ae9e6
LP		 4350 dbus_error_free(&error);
4351
4352 return r;
4353}
4354
4355static int talk_initctl(void) {
eb22ac37
LP		 4356 struct init_request request;
4357 int r, fd;
d55ae9e6 4358 char rl;
eb22ac37 4359
d55ae9e6 4360 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4361 return 0;
4362
4363 zero(request);
4364 request.magic = INIT_MAGIC;
4365 request.sleeptime = 0;
4366 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4367 request.runlevel = rl;
4368
4369 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4370
4371 if (errno == ENOENT)
4372 return 0;
eb22ac37 4373
d55ae9e6 4374 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4375 return -errno;
d55ae9e6 4376 }
eb22ac37 4377
d55ae9e6 4378 errno = 0;
eb22ac37
LP		 4379 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4380 close_nointr_nofail(fd);
4381
d55ae9e6
LP		 4382 if (r < 0) {
4383 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 4384 return errno ? -errno : -EIO;
d55ae9e6 4385 }
eb22ac37
LP		 4386
4387 return 1;
e4b61340
LP		 4388}
4389
ee5762e3 4390static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 4391
7e4249b9
LP		 4392 static const struct {
4393 const char* verb;
4394 const enum {
4395 MORE,
4396 LESS,
4397 EQUAL
4398 } argc_cmp;
4399 const int argc;
4400 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4401 } verbs[] = {
ee5762e3
LP		 4402 { "list-units", LESS, 1, list_units },
4403 { "list-jobs", EQUAL, 1, list_jobs },
4404 { "clear-jobs", EQUAL, 1, daemon_reload },
4405 { "load", MORE, 2, load_unit },
4406 { "cancel", MORE, 2, cancel_job },
4407 { "start", MORE, 2, start_unit },
4408 { "stop", MORE, 2, start_unit },
4409 { "reload", MORE, 2, start_unit },
4410 { "restart", MORE, 2, start_unit },
4411 { "try-restart", MORE, 2, start_unit },
4412 { "reload-or-restart", MORE, 2, start_unit },
4413 { "reload-or-try-restart", MORE, 2, start_unit },
4414 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4415 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4416 { "isolate", EQUAL, 2, start_unit },
4417 { "is-active", MORE, 2, check_unit },
4418 { "check", MORE, 2, check_unit },
4419 { "show", MORE, 1, show },
4420 { "status", MORE, 2, show },
4421 { "monitor", EQUAL, 1, monitor },
4422 { "dump", EQUAL, 1, dump },
4423 { "dot", EQUAL, 1, dot },
4424 { "snapshot", LESS, 2, snapshot },
4425 { "delete", MORE, 2, delete_snapshot },
4426 { "daemon-reload", EQUAL, 1, daemon_reload },
4427 { "daemon-reexec", EQUAL, 1, daemon_reload },
4428 { "daemon-exit", EQUAL, 1, daemon_reload },
4429 { "show-environment", EQUAL, 1, show_enviroment },
4430 { "set-environment", MORE, 2, set_environment },
4431 { "unset-environment", MORE, 2, set_environment },
4432 { "halt", EQUAL, 1, start_special },
4433 { "poweroff", EQUAL, 1, start_special },
4434 { "reboot", EQUAL, 1, start_special },
4435 { "default", EQUAL, 1, start_special },
4436 { "rescue", EQUAL, 1, start_special },
4437 { "emergency", EQUAL, 1, start_special },
4438 { "reset-maintenance", MORE, 1, reset_maintenance },
4439 { "enable", MORE, 2, enable_unit },
4440 { "disable", MORE, 2, enable_unit },
4441 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 4442 };
4443
e4b61340 4444 int left;
7e4249b9 4445 unsigned i;
7e4249b9 4446
e4b61340
LP		 4447 assert(argc >= 0);
4448 assert(argv);
ee5762e3 4449 assert(error);
7e4249b9
LP		 4450
4451 left = argc - optind;
4452
4453 if (left <= 0)
4454 /* Special rule: no arguments means "list-units" */
4455 i = 0;
4456 else {
0183528f
LP		 4457 if (streq(argv[optind], "help")) {
4458 systemctl_help();
4459 return 0;
4460 }
4461
7e4249b9
LP		 4462 for (i = 0; i < ELEMENTSOF(verbs); i++)
4463 if (streq(argv[optind], verbs[i].verb))
4464 break;
4465
4466 if (i >= ELEMENTSOF(verbs)) {
4467 log_error("Unknown operation %s", argv[optind]);
e4b61340 4468 return -EINVAL;
7e4249b9
LP		 4469 }
4470 }
4471
4472 switch (verbs[i].argc_cmp) {
4473
4474 case EQUAL:
4475 if (left != verbs[i].argc) {
4476 log_error("Invalid number of arguments.");
e4b61340 4477 return -EINVAL;
7e4249b9
LP		 4478 }
4479
4480 break;
4481
4482 case MORE:
4483 if (left < verbs[i].argc) {
4484 log_error("Too few arguments.");
e4b61340 4485 return -EINVAL;
7e4249b9
LP		 4486 }
4487
4488 break;
4489
4490 case LESS:
4491 if (left > verbs[i].argc) {
4492 log_error("Too many arguments.");
e4b61340 4493 return -EINVAL;
7e4249b9
LP		 4494 }
4495
4496 break;
4497
4498 default:
4499 assert_not_reached("Unknown comparison operator.");
4500 }
4501
ee5762e3
LP		 4502 /* Require a bus connection for all operations but
4503 * enable/disable */
4504 if (!streq(verbs[i].verb, "enable") &&
4505 !streq(verbs[i].verb, "disable") &&
4506 !bus) {
4507 log_error("Failed to get D-Bus connection: %s", error->message);
4508 return -EIO;
4509 }
4510
e4b61340
LP		 4511 return verbs[i].dispatch(bus, argv + optind, left);
4512}
4513
4514static int reload_with_fallback(DBusConnection *bus) {
4515 int r;
4516
4517 if (bus) {
4518 /* First, try systemd via D-Bus. */
ee5762e3 4519 if ((r = daemon_reload(bus, NULL, 0)) > 0)
e4b61340
LP		 4520 return 0;
4521 }
4522
4523 /* Nothing else worked, so let's try signals */
4524 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4525
4526 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4527 log_error("kill() failed: %m");
4528 return -errno;
4529 }
4530
4531 return 0;
4532}
4533
4534static int start_with_fallback(DBusConnection *bus) {
4535 int r;
4536
4537 if (bus) {
4538 /* First, try systemd via D-Bus. */
4539 if ((r = start_unit(bus, NULL, 0)) > 0)
983d9c90 4540 goto done;
e4b61340
LP		 4541 }
4542
ec7f7f20
LP		 4543 /* Hmm, talking to systemd via D-Bus didn't work. Then
4544 * let's try to talk to Upstart via D-Bus. */
4545 if ((r = talk_upstart()) > 0)
4546 goto done;
4547
e4b61340
LP		 4548 /* Nothing else worked, so let's try
4549 * /dev/initctl */
d55ae9e6 4550 if ((r = talk_initctl()) != 0)
983d9c90 4551 goto done;
d55ae9e6
LP		 4552
4553 log_error("Failed to talk to init daemon.");
4554 return -EIO;
983d9c90
LP		 4555
4556done:
4557 warn_wall(arg_action);
4558 return 0;
e4b61340
LP		 4559}
4560
4561static int halt_main(DBusConnection *bus) {
4562 int r;
4563
bc8c2f5c
LP		 4564 if (geteuid() != 0) {
4565 log_error("Must to be root.");
4566 return -EPERM;
4567 }
4568
d47b555b 4569 if (!arg_dry && !arg_immediate)
e4b61340
LP		 4570 return start_with_fallback(bus);
4571
4572 if (!arg_no_wtmp)
4573 if ((r = utmp_put_shutdown(0)) < 0)
4574 log_warning("Failed to write utmp record: %s", strerror(-r));
4575
4576 if (!arg_no_sync)
4577 sync();
4578
4579 if (arg_dry)
4580 return 0;
4581
4582 /* Make sure C-A-D is handled by the kernel from this
4583 * point on... */
4584 reboot(RB_ENABLE_CAD);
4585
4586 switch (arg_action) {
4587
4588 case ACTION_HALT:
4589 log_info("Halting");
4590 reboot(RB_HALT_SYSTEM);
4591 break;
4592
4593 case ACTION_POWEROFF:
4594 log_info("Powering off");
4595 reboot(RB_POWER_OFF);
4596 break;
4597
4598 case ACTION_REBOOT:
4599 log_info("Rebooting");
4600 reboot(RB_AUTOBOOT);
4601 break;
4602
4603 default:
4604 assert_not_reached("Unknown halt action.");
4605 }
4606
4607 /* We should never reach this. */
4608 return -ENOSYS;
4609}
4610
4611static int runlevel_main(void) {
4612 int r, runlevel, previous;
4613
4614 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 4615 printf("unknown\n");
e4b61340
LP		 4616 return r;
4617 }
4618
4619 printf("%c %c\n",
4620 previous <= 0 ? 'N' : previous,
4621 runlevel <= 0 ? 'N' : runlevel);
4622
4623 return 0;
4624}
4625
4626int main(int argc, char*argv[]) {
4627 int r, retval = 1;
4628 DBusConnection *bus = NULL;
4629 DBusError error;
4630
4631 dbus_error_init(&error);
4632
4633 log_parse_environment();
4634
4635 if ((r = parse_argv(argc, argv)) < 0)
4636 goto finish;
4637 else if (r == 0) {
4638 retval = 0;
7e4249b9
LP		 4639 goto finish;
4640 }
4641
e4b61340
LP		 4642 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
4643 * let's shortcut this */
4644 if (arg_action == ACTION_RUNLEVEL) {
4645 retval = runlevel_main() < 0;
4646 goto finish;
4647 }
4648
f4579ce7 4649 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 4650
4651 switch (arg_action) {
4652
4653 case ACTION_SYSTEMCTL: {
ee5762e3 4654 retval = systemctl_main(bus, argc, argv, &error) < 0;
e4b61340
LP		 4655 break;
4656 }
4657
4658 case ACTION_HALT:
4659 case ACTION_POWEROFF:
4660 case ACTION_REBOOT:
4661 retval = halt_main(bus) < 0;
4662 break;
4663
e4b61340
LP		 4664 case ACTION_RUNLEVEL2:
4665 case ACTION_RUNLEVEL3:
4666 case ACTION_RUNLEVEL4:
4667 case ACTION_RUNLEVEL5:
4668 case ACTION_RESCUE:
514f4ef5 4669 case ACTION_EMERGENCY:
eb22ac37 4670 case ACTION_DEFAULT:
e4b61340
LP		 4671 retval = start_with_fallback(bus) < 0;
4672 break;
7e4249b9 4673
e4b61340
LP		 4674 case ACTION_RELOAD:
4675 case ACTION_REEXEC:
4676 retval = reload_with_fallback(bus) < 0;
4677 break;
4678
eb22ac37
LP		 4679 case ACTION_INVALID:
4680 case ACTION_RUNLEVEL:
e4b61340
LP		 4681 default:
4682 assert_not_reached("Unknown action");
4683 }
7e4249b9
LP		 4684
4685finish:
4686
b574246b
LP		 4687 if (bus) {
4688 dbus_connection_close(bus);
7e4249b9 4689 dbus_connection_unref(bus);
b574246b 4690 }
7e4249b9 4691
e4b61340
LP		 4692 dbus_error_free(&error);
4693
7e4249b9
LP		 4694 dbus_shutdown();
4695
ea4a240d
LP		 4696 strv_free(arg_property);
4697
7e4249b9
LP		 4698 return retval;
4699}
Unnamed repository; edit this file 'description' to name the repository.