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unit: create three seperate plymouth service for halt/poweroff/reboot
[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
2ee68f72 99static bool on_tty(void) {
2cc59dbf
LP		 100 static int t = -1;
101
102 if (_unlikely_(t < 0))
103 t = isatty(STDOUT_FILENO) > 0;
104
2ee68f72
LP		 105 return t;
106}
107
108static const char *ansi_highlight(bool b) {
109
110 if (!on_tty())
2cc59dbf
LP		 111 return "";
112
113 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
114}
115
2ee68f72
LP		 116static const char *ansi_highlight_green(bool b) {
117
118 if (!on_tty())
119 return "";
120
121 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
122}
123
e4b61340
LP		 124static bool error_is_no_service(DBusError *error) {
125
514f4ef5
LP		 126 assert(error);
127
e4b61340
LP		 128 if (!dbus_error_is_set(error))
129 return false;
130
131 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
132 return true;
133
134 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
135 return true;
136
137 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
138}
7e4249b9
LP		 139
140static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
141
514f4ef5
LP		 142 assert(iter);
143 assert(data);
144
7e4249b9
LP		 145 if (dbus_message_iter_get_arg_type(iter) != type)
146 return -EIO;
147
148 dbus_message_iter_get_basic(iter, data);
149
150 if (!dbus_message_iter_next(iter) != !next)
151 return -EIO;
152
153 return 0;
154}
155
514f4ef5 156static void warn_wall(enum action action) {
ef2f1067 157 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 158 [ACTION_HALT] = "The system is going down for system halt NOW!",
159 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
160 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
161 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
162 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 163 };
164
514f4ef5
LP		 165 if (arg_no_wall)
166 return;
167
e4a9373f
LP		 168 if (arg_wall) {
169 char *p;
170
171 if (!(p = strv_join(arg_wall, " "))) {
172 log_error("Failed to join strings.");
173 return;
174 }
175
176 if (*p) {
177 utmp_wall(p);
178 free(p);
179 return;
180 }
181
182 free(p);
183 }
184
514f4ef5 185 if (!table[action])
ef2f1067
LP		 186 return;
187
514f4ef5 188 utmp_wall(table[action]);
ef2f1067
LP		 189}
190
7e4249b9
LP		 191static int list_units(DBusConnection *bus, char **args, unsigned n) {
192 DBusMessage *m = NULL, *reply = NULL;
193 DBusError error;
194 int r;
195 DBusMessageIter iter, sub, sub2;
196 unsigned k = 0;
197
198 dbus_error_init(&error);
199
514f4ef5
LP		 200 assert(bus);
201
7e4249b9
LP		 202 if (!(m = dbus_message_new_method_call(
203 "org.freedesktop.systemd1",
204 "/org/freedesktop/systemd1",
205 "org.freedesktop.systemd1.Manager",
206 "ListUnits"))) {
207 log_error("Could not allocate message.");
208 return -ENOMEM;
209 }
210
211 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
212 log_error("Failed to issue method call: %s", error.message);
213 r = -EIO;
214 goto finish;
215 }
216
217 if (!dbus_message_iter_init(reply, &iter) ||
218 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
219 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
220 log_error("Failed to parse reply.");
221 r = -EIO;
222 goto finish;
223 }
224
225 dbus_message_iter_recurse(&iter, &sub);
226
d0642824
LP		 227 if (isatty(STDOUT_FILENO))
228 printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION");
7e4249b9
LP		 229
230 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
8fe914ec 231 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path, *job_type, *job_path, *dot;
7e4249b9
LP		 232 uint32_t job_id;
233
234 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
235 log_error("Failed to parse reply.");
236 r = -EIO;
237 goto finish;
238 }
239
240 dbus_message_iter_recurse(&sub, &sub2);
241
242 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
243 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
244 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
245 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
246 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
8fe914ec 247 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875 248 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0 ||
7e4249b9
LP		 249 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &job_id, true) < 0 ||
250 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &job_type, true) < 0 ||
251 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, false) < 0) {
252 log_error("Failed to parse reply.");
253 r = -EIO;
254 goto finish;
255 }
256
257 if ((!arg_type || ((dot = strrchr(id, '.')) &&
258 streq(dot+1, arg_type))) &&
8fe914ec
LP		 259 (arg_all || !(streq(active_state, "inactive") || following[0]) || job_id > 0)) {
260 char *e;
7e4249b9 261 int a = 0, b = 0;
2ee68f72 262 const char *on, *off;
7e4249b9 263
2ee68f72
LP		 264 if (streq(active_state, "maintenance")) {
265 on = ansi_highlight(true);
266 off = ansi_highlight(false);
267 } else
268 on = off = "";
e0376b17 269
8fe914ec 270 e = arg_full ? NULL : ellipsize(id, 45, 33);
2ee68f72 271 printf("%-45s %-6s %s%-12s %-12s%s%n", e ? e : id, load_state, on, active_state, sub_state, off, &a);
8fe914ec 272 free(e);
7e4249b9 273
2ee68f72
LP		 274 a -= strlen(on) + strlen(off);
275
7e4249b9 276 if (job_id != 0)
0ff3dea7 277 printf(" => %-12s%n", job_type, &b);
7e4249b9 278 else
e0376b17 279 b = 1 + 15;
7e4249b9
LP		 280
281 if (a + b + 2 < columns()) {
282 if (job_id == 0)
283 printf(" ");
284
e0376b17 285 printf(" %.*s", columns() - a - b - 2, description);
7e4249b9
LP		 286 }
287
288 fputs("\n", stdout);
289 k++;
290 }
291
292 dbus_message_iter_next(&sub);
293 }
294
d0642824 295 if (isatty(STDOUT_FILENO)) {
0ff3dea7 296
d0642824
LP		 297 printf("\nLOAD = Load State, reflects whether the unit configuration was properly loaded.\n"
298 "ACTIVE = Active State, the high-level unit activation state, i.e. generalization of the substate.\n"
299 "SUB = Substate, the low-level unit activation state, possible values depend on unit type.\n"
300 "JOB = Job, shows pending jobs for the unit.\n");
301
302 if (arg_all)
303 printf("\n%u units listed.\n", k);
304 else
305 printf("\n%u units listed. Pass --all to see inactive units, too.\n", k);
306 }
4445a875
LP		 307
308 r = 0;
309
310finish:
311 if (m)
312 dbus_message_unref(m);
313
314 if (reply)
315 dbus_message_unref(reply);
316
317 dbus_error_free(&error);
318
319 return r;
320}
321
322static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
323 static const char * const colors[] = {
324 "Requires", "[color=\"black\"]",
325 "RequiresOverridable", "[color=\"black\"]",
326 "Requisite", "[color=\"darkblue\"]",
327 "RequisiteOverridable", "[color=\"darkblue\"]",
328 "Wants", "[color=\"darkgrey\"]",
329 "Conflicts", "[color=\"red\"]",
69dd2852 330 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 331 "After", "[color=\"green\"]"
332 };
333
334 const char *c = NULL;
335 unsigned i;
336
337 assert(name);
338 assert(prop);
339 assert(iter);
340
341 for (i = 0; i < ELEMENTSOF(colors); i += 2)
342 if (streq(colors[i], prop)) {
343 c = colors[i+1];
344 break;
345 }
346
347 if (!c)
348 return 0;
349
350 if (arg_dot != DOT_ALL)
351 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
352 return 0;
353
354 switch (dbus_message_iter_get_arg_type(iter)) {
355
356 case DBUS_TYPE_ARRAY:
357
358 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
359 DBusMessageIter sub;
360
361 dbus_message_iter_recurse(iter, &sub);
362
363 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
364 const char *s;
365
366 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
367 dbus_message_iter_get_basic(&sub, &s);
368 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
369
370 dbus_message_iter_next(&sub);
371 }
372
373 return 0;
374 }
375 }
376
377 return 0;
378}
379
380static int dot_one(DBusConnection *bus, const char *name, const char *path) {
381 DBusMessage *m = NULL, *reply = NULL;
382 const char *interface = "org.freedesktop.systemd1.Unit";
383 int r;
384 DBusError error;
385 DBusMessageIter iter, sub, sub2, sub3;
386
387 assert(bus);
388 assert(path);
389
390 dbus_error_init(&error);
391
392 if (!(m = dbus_message_new_method_call(
393 "org.freedesktop.systemd1",
394 path,
395 "org.freedesktop.DBus.Properties",
396 "GetAll"))) {
397 log_error("Could not allocate message.");
398 r = -ENOMEM;
399 goto finish;
400 }
401
402 if (!dbus_message_append_args(m,
403 DBUS_TYPE_STRING, &interface,
404 DBUS_TYPE_INVALID)) {
405 log_error("Could not append arguments to message.");
406 r = -ENOMEM;
407 goto finish;
408 }
409
410 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
411 log_error("Failed to issue method call: %s", error.message);
412 r = -EIO;
413 goto finish;
414 }
415
416 if (!dbus_message_iter_init(reply, &iter) ||
417 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
418 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
419 log_error("Failed to parse reply.");
420 r = -EIO;
421 goto finish;
422 }
423
424 dbus_message_iter_recurse(&iter, &sub);
425
426 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
427 const char *prop;
428
429 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
430 log_error("Failed to parse reply.");
431 r = -EIO;
432 goto finish;
433 }
434
435 dbus_message_iter_recurse(&sub, &sub2);
436
437 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
438 log_error("Failed to parse reply.");
439 r = -EIO;
440 goto finish;
441 }
442
443 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
444 log_error("Failed to parse reply.");
445 r = -EIO;
446 goto finish;
447 }
448
449 dbus_message_iter_recurse(&sub2, &sub3);
450
451 if (dot_one_property(name, prop, &sub3)) {
452 log_error("Failed to parse reply.");
453 r = -EIO;
454 goto finish;
455 }
456
457 dbus_message_iter_next(&sub);
458 }
459
e364ad06
LP		 460 r = 0;
461
4445a875
LP		 462finish:
463 if (m)
464 dbus_message_unref(m);
465
466 if (reply)
467 dbus_message_unref(reply);
468
469 dbus_error_free(&error);
470
471 return r;
472}
473
474static int dot(DBusConnection *bus, char **args, unsigned n) {
475 DBusMessage *m = NULL, *reply = NULL;
476 DBusError error;
477 int r;
478 DBusMessageIter iter, sub, sub2;
479
480 dbus_error_init(&error);
481
482 assert(bus);
483
484 if (!(m = dbus_message_new_method_call(
485 "org.freedesktop.systemd1",
486 "/org/freedesktop/systemd1",
487 "org.freedesktop.systemd1.Manager",
488 "ListUnits"))) {
489 log_error("Could not allocate message.");
490 return -ENOMEM;
491 }
492
493 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
494 log_error("Failed to issue method call: %s", error.message);
495 r = -EIO;
496 goto finish;
497 }
498
499 if (!dbus_message_iter_init(reply, &iter) ||
500 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
501 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
502 log_error("Failed to parse reply.");
503 r = -EIO;
504 goto finish;
505 }
506
507 printf("digraph systemd {\n");
508
509 dbus_message_iter_recurse(&iter, &sub);
510 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 511 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 512
513 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
514 log_error("Failed to parse reply.");
515 r = -EIO;
516 goto finish;
517 }
518
519 dbus_message_iter_recurse(&sub, &sub2);
520
521 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
522 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
523 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
524 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
525 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 526 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 527 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
528 log_error("Failed to parse reply.");
529 r = -EIO;
530 goto finish;
531 }
532
533 if ((r = dot_one(bus, id, unit_path)) < 0)
534 goto finish;
535
536 /* printf("\t\"%s\";\n", id); */
537 dbus_message_iter_next(&sub);
538 }
539
540 printf("}\n");
541
542 log_info(" Color legend: black = Requires\n"
543 " dark blue = Requisite\n"
544 " dark grey = Wants\n"
545 " red = Conflicts\n"
546 " green = After\n");
547
548 if (isatty(fileno(stdout)))
549 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
550 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 551
552 r = 0;
553
554finish:
555 if (m)
556 dbus_message_unref(m);
557
558 if (reply)
559 dbus_message_unref(reply);
560
561 dbus_error_free(&error);
562
563 return r;
564}
565
566static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
567 DBusMessage *m = NULL, *reply = NULL;
568 DBusError error;
569 int r;
570 DBusMessageIter iter, sub, sub2;
571 unsigned k = 0;
572
573 dbus_error_init(&error);
574
514f4ef5
LP		 575 assert(bus);
576
7e4249b9
LP		 577 if (!(m = dbus_message_new_method_call(
578 "org.freedesktop.systemd1",
579 "/org/freedesktop/systemd1",
580 "org.freedesktop.systemd1.Manager",
581 "ListJobs"))) {
582 log_error("Could not allocate message.");
583 return -ENOMEM;
584 }
585
586 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
587 log_error("Failed to issue method call: %s", error.message);
588 r = -EIO;
589 goto finish;
590 }
591
592 if (!dbus_message_iter_init(reply, &iter) ||
593 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
594 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
595 log_error("Failed to parse reply.");
596 r = -EIO;
597 goto finish;
598 }
599
600 dbus_message_iter_recurse(&iter, &sub);
601
602 printf("%4s %-45s %-17s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
603
604 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
605 const char *name, *type, *state, *job_path, *unit_path;
606 uint32_t id;
8fe914ec 607 char *e;
7e4249b9
LP		 608
609 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
610 log_error("Failed to parse reply.");
611 r = -EIO;
612 goto finish;
613 }
614
615 dbus_message_iter_recurse(&sub, &sub2);
616
617 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
618 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
619 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
620 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
621 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
622 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
623 log_error("Failed to parse reply.");
624 r = -EIO;
625 goto finish;
626 }
627
8fe914ec
LP		 628 e = arg_full ? NULL : ellipsize(name, 45, 33);
629 printf("%4u %-45s %-17s %-7s\n", id, e ? e : name, type, state);
630 free(e);
631
7e4249b9
LP		 632 k++;
633
634 dbus_message_iter_next(&sub);
635 }
636
637 printf("\n%u jobs listed.\n", k);
638 r = 0;
639
640finish:
641 if (m)
642 dbus_message_unref(m);
643
644 if (reply)
645 dbus_message_unref(reply);
646
647 dbus_error_free(&error);
648
649 return r;
650}
651
652static int load_unit(DBusConnection *bus, char **args, unsigned n) {
653 DBusMessage *m = NULL, *reply = NULL;
654 DBusError error;
655 int r;
656 unsigned i;
657
658 dbus_error_init(&error);
659
514f4ef5
LP		 660 assert(bus);
661 assert(args);
662
7e4249b9
LP		 663 for (i = 1; i < n; i++) {
664
665 if (!(m = dbus_message_new_method_call(
666 "org.freedesktop.systemd1",
667 "/org/freedesktop/systemd1",
668 "org.freedesktop.systemd1.Manager",
669 "LoadUnit"))) {
670 log_error("Could not allocate message.");
671 r = -ENOMEM;
672 goto finish;
673 }
674
675 if (!dbus_message_append_args(m,
676 DBUS_TYPE_STRING, &args[i],
677 DBUS_TYPE_INVALID)) {
678 log_error("Could not append arguments to message.");
679 r = -ENOMEM;
680 goto finish;
681 }
682
683 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
684 log_error("Failed to issue method call: %s", error.message);
685 r = -EIO;
686 goto finish;
687 }
688
689 dbus_message_unref(m);
690 dbus_message_unref(reply);
691
692 m = reply = NULL;
693 }
694
695 r = 0;
696
697finish:
698 if (m)
699 dbus_message_unref(m);
700
701 if (reply)
702 dbus_message_unref(reply);
703
704 dbus_error_free(&error);
705
706 return r;
707}
708
709static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
710 DBusMessage *m = NULL, *reply = NULL;
711 DBusError error;
712 int r;
713 unsigned i;
714
715 dbus_error_init(&error);
716
514f4ef5
LP		 717 assert(bus);
718 assert(args);
719
ee5762e3
LP		 720 if (n <= 1)
721 return daemon_reload(bus, args, n);
722
7e4249b9
LP		 723 for (i = 1; i < n; i++) {
724 unsigned id;
725 const char *path;
726
727 if (!(m = dbus_message_new_method_call(
728 "org.freedesktop.systemd1",
729 "/org/freedesktop/systemd1",
730 "org.freedesktop.systemd1.Manager",
731 "GetJob"))) {
732 log_error("Could not allocate message.");
733 r = -ENOMEM;
734 goto finish;
735 }
736
737 if ((r = safe_atou(args[i], &id)) < 0) {
738 log_error("Failed to parse job id: %s", strerror(-r));
739 goto finish;
740 }
741
742 assert_cc(sizeof(uint32_t) == sizeof(id));
743 if (!dbus_message_append_args(m,
744 DBUS_TYPE_UINT32, &id,
745 DBUS_TYPE_INVALID)) {
746 log_error("Could not append arguments to message.");
747 r = -ENOMEM;
748 goto finish;
749 }
750
751 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
752 log_error("Failed to issue method call: %s", error.message);
753 r = -EIO;
754 goto finish;
755 }
756
757 if (!dbus_message_get_args(reply, &error,
758 DBUS_TYPE_OBJECT_PATH, &path,
759 DBUS_TYPE_INVALID)) {
760 log_error("Failed to parse reply: %s", error.message);
761 r = -EIO;
762 goto finish;
763 }
764
765 dbus_message_unref(m);
766 if (!(m = dbus_message_new_method_call(
767 "org.freedesktop.systemd1",
768 path,
769 "org.freedesktop.systemd1.Job",
770 "Cancel"))) {
771 log_error("Could not allocate message.");
772 r = -ENOMEM;
773 goto finish;
774 }
775
776 dbus_message_unref(reply);
777 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
778 log_error("Failed to issue method call: %s", error.message);
779 r = -EIO;
780 goto finish;
781 }
782
783 dbus_message_unref(m);
784 dbus_message_unref(reply);
785 m = reply = NULL;
786 }
787
788 r = 0;
789
790finish:
791 if (m)
792 dbus_message_unref(m);
793
794 if (reply)
795 dbus_message_unref(reply);
796
797 dbus_error_free(&error);
798
799 return r;
800}
801
ee5762e3 802static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
e364ad06 803 DBusMessage *m = NULL, *reply = NULL;
45fb0699
LP		 804 dbus_bool_t b = FALSE;
805 DBusMessageIter iter, sub;
806 const char
807 *interface = "org.freedesktop.systemd1.Unit",
808 *property = "NeedDaemonReload",
809 *path;
810
811 /* We ignore all errors here, since this is used to show a warning only */
812
813 if (!(m = dbus_message_new_method_call(
814 "org.freedesktop.systemd1",
815 "/org/freedesktop/systemd1",
816 "org.freedesktop.systemd1.Manager",
817 "GetUnit")))
818 goto finish;
819
820 if (!dbus_message_append_args(m,
821 DBUS_TYPE_STRING, &unit,
822 DBUS_TYPE_INVALID))
823 goto finish;
824
825 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
826 goto finish;
827
828 if (!dbus_message_get_args(reply, NULL,
829 DBUS_TYPE_OBJECT_PATH, &path,
830 DBUS_TYPE_INVALID))
831 goto finish;
832
833 dbus_message_unref(m);
834 if (!(m = dbus_message_new_method_call(
835 "org.freedesktop.systemd1",
836 path,
837 "org.freedesktop.DBus.Properties",
838 "Get")))
839 goto finish;
840
841 if (!dbus_message_append_args(m,
842 DBUS_TYPE_STRING, &interface,
843 DBUS_TYPE_STRING, &property,
844 DBUS_TYPE_INVALID)) {
845 goto finish;
846 }
847
848 dbus_message_unref(reply);
849 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
850 goto finish;
851
852 if (!dbus_message_iter_init(reply, &iter) ||
853 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
854 goto finish;
855
856 dbus_message_iter_recurse(&iter, &sub);
857
858 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
859 goto finish;
860
861 dbus_message_iter_get_basic(&sub, &b);
862
863finish:
864 if (m)
865 dbus_message_unref(m);
866
867 if (reply)
868 dbus_message_unref(reply);
869
870 return b;
871}
872
5e374895
LP		 873typedef struct WaitData {
874 Set *set;
875 bool failed;
876} WaitData;
877
7e4249b9
LP		 878static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
879 DBusError error;
5e374895 880 WaitData *d = data;
7e4249b9
LP		 881
882 assert(connection);
883 assert(message);
5e374895 884 assert(d);
7e4249b9
LP		 885
886 dbus_error_init(&error);
887
54165a39
LP		 888 log_debug("Got D-Bus request: %s.%s() on %s",
889 dbus_message_get_interface(message),
890 dbus_message_get_member(message),
891 dbus_message_get_path(message));
7e4249b9
LP		 892
893 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
894 log_error("Warning! D-Bus connection terminated.");
895 dbus_connection_close(connection);
896
897 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
898 uint32_t id;
899 const char *path;
5e374895 900 dbus_bool_t success = true;
7e4249b9
LP		 901
902 if (!dbus_message_get_args(message, &error,
903 DBUS_TYPE_UINT32, &id,
904 DBUS_TYPE_OBJECT_PATH, &path,
5e374895 905 DBUS_TYPE_BOOLEAN, &success,
7e4249b9
LP		 906 DBUS_TYPE_INVALID))
907 log_error("Failed to parse message: %s", error.message);
908 else {
909 char *p;
910
5e374895 911 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 912 free(p);
5e374895
LP		 913
914 if (!success)
915 d->failed = true;
7e4249b9
LP		 916 }
917 }
918
919 dbus_error_free(&error);
920 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
921}
922
479ef5d3 923static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 924 DBusError error;
7e4249b9
LP		 925
926 assert(bus);
7e4249b9 927
f4579ce7
LP		 928 if (private_bus)
929 return 0;
930
7e4249b9 931 dbus_error_init(&error);
7e4249b9
LP		 932 dbus_bus_add_match(bus,
933 "type='signal',"
934 "sender='org.freedesktop.systemd1',"
935 "interface='org.freedesktop.systemd1.Manager',"
936 "member='JobRemoved',"
937 "path='/org/freedesktop/systemd1'",
938 &error);
939
940 if (dbus_error_is_set(&error)) {
941 log_error("Failed to add match: %s", error.message);
a567261a
LP		 942 dbus_error_free(&error);
943 return -EIO;
7e4249b9
LP		 944 }
945
479ef5d3 946 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 947 return 0;
7e4249b9
LP		 948}
949
479ef5d3
LP		 950static int wait_for_jobs(DBusConnection *bus, Set *s) {
951 int r;
5e374895 952 WaitData d;
479ef5d3
LP		 953
954 assert(bus);
955 assert(s);
956
5e374895
LP		 957 zero(d);
958 d.set = s;
959 d.failed = false;
960
961 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 962 log_error("Failed to add filter.");
963 r = -ENOMEM;
964 goto finish;
965 }
966
967 while (!set_isempty(s) &&
968 dbus_connection_read_write_dispatch(bus, -1))
969 ;
970
5e374895
LP		 971 if (!arg_quiet && d.failed)
972 log_error("Job failed, see logs for details.");
973
974 r = d.failed ? -EIO : 0;
479ef5d3
LP		 975
976finish:
977 /* This is slightly dirty, since we don't undo the filter registration. */
978
979 return r;
980}
981
e4b61340
LP		 982static int start_unit_one(
983 DBusConnection *bus,
984 const char *method,
985 const char *name,
986 const char *mode,
987 Set *s) {
7e4249b9 988
7e4249b9
LP		 989 DBusMessage *m = NULL, *reply = NULL;
990 DBusError error;
45fb0699 991 const char *path;
7e4249b9 992 int r;
7e4249b9 993
e4b61340
LP		 994 assert(bus);
995 assert(method);
996 assert(name);
997 assert(mode);
6e905d93 998 assert(arg_no_block || s);
7e4249b9 999
e4b61340 1000 dbus_error_init(&error);
479ef5d3 1001
7e4249b9
LP		 1002 if (!(m = dbus_message_new_method_call(
1003 "org.freedesktop.systemd1",
1004 "/org/freedesktop/systemd1",
1005 "org.freedesktop.systemd1.Manager",
e4b61340 1006 method))) {
7e4249b9
LP		 1007 log_error("Could not allocate message.");
1008 r = -ENOMEM;
1009 goto finish;
1010 }
1011
1012 if (!dbus_message_append_args(m,
e4b61340 1013 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 1014 DBUS_TYPE_STRING, &mode,
1015 DBUS_TYPE_INVALID)) {
1016 log_error("Could not append arguments to message.");
1017 r = -ENOMEM;
1018 goto finish;
1019 }
1020
1021 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 1022
1023 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
1024 /* There's always a fallback possible for
1025 * legacy actions. */
1026 r = 0;
1027 goto finish;
1028 }
1029
7e4249b9
LP		 1030 log_error("Failed to issue method call: %s", error.message);
1031 r = -EIO;
1032 goto finish;
1033 }
1034
45fb0699
LP		 1035 if (!dbus_message_get_args(reply, &error,
1036 DBUS_TYPE_OBJECT_PATH, &path,
1037 DBUS_TYPE_INVALID)) {
1038 log_error("Failed to parse reply: %s", error.message);
1039 r = -EIO;
1040 goto finish;
1041 }
1042
ee5762e3 1043 if (need_daemon_reload(bus, name))
45fb0699
LP		 1044 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1045 arg_session ? "--session" : "--system");
1046
6e905d93 1047 if (!arg_no_block) {
e4b61340 1048 char *p;
7e4249b9 1049
7e4249b9
LP		 1050 if (!(p = strdup(path))) {
1051 log_error("Failed to duplicate path.");
1052 r = -ENOMEM;
1053 goto finish;
1054 }
1055
1056 if ((r = set_put(s, p)) < 0) {
e4b61340 1057 free(p);
7e4249b9
LP		 1058 log_error("Failed to add path to set.");
1059 goto finish;
1060 }
e4b61340 1061 }
7e4249b9 1062
e4b61340 1063 r = 1;
7e4249b9
LP		 1064
1065finish:
7e4249b9
LP		 1066 if (m)
1067 dbus_message_unref(m);
1068
1069 if (reply)
1070 dbus_message_unref(reply);
1071
1072 dbus_error_free(&error);
1073
1074 return r;
1075}
1076
514f4ef5
LP		 1077static enum action verb_to_action(const char *verb) {
1078 if (streq(verb, "halt"))
1079 return ACTION_HALT;
1080 else if (streq(verb, "poweroff"))
1081 return ACTION_POWEROFF;
1082 else if (streq(verb, "reboot"))
1083 return ACTION_REBOOT;
1084 else if (streq(verb, "rescue"))
1085 return ACTION_RESCUE;
1086 else if (streq(verb, "emergency"))
1087 return ACTION_EMERGENCY;
1088 else if (streq(verb, "default"))
1089 return ACTION_DEFAULT;
1090 else
1091 return ACTION_INVALID;
1092}
1093
e4b61340
LP		 1094static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1095
1096 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1097 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1098 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1099 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1100 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1101 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1102 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1103 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1104 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1105 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
514f4ef5 1106 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
e4b61340
LP		 1107 };
1108
1109 int r;
1110 unsigned i;
514f4ef5 1111 const char *method, *mode, *one_name;
e4b61340
LP		 1112 Set *s = NULL;
1113
514f4ef5
LP		 1114 assert(bus);
1115
e4b61340
LP		 1116 if (arg_action == ACTION_SYSTEMCTL) {
1117 method =
6f28c033
LP		 1118 streq(args[0], "stop") ? "StopUnit" :
1119 streq(args[0], "reload") ? "ReloadUnit" :
1120 streq(args[0], "restart") ? "RestartUnit" :
1121 streq(args[0], "try-restart") ? "TryRestartUnit" :
1122 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
9d8a57ff
LP		 1123 streq(args[0], "reload-or-try-restart") ||
1124 streq(args[0], "force-reload") ||
1125 streq(args[0], "condrestart") ? "ReloadOrTryRestartUnit" :
6f28c033 1126 "StartUnit";
e4b61340
LP		 1127
1128 mode =
514f4ef5
LP		 1129 (streq(args[0], "isolate") ||
1130 streq(args[0], "rescue") ||
1131 streq(args[0], "emergency")) ? "isolate" :
90d473a1
LP		 1132 arg_fail ? "fail" :
1133 "replace";
e4b61340 1134
514f4ef5 1135 one_name = table[verb_to_action(args[0])];
e4b61340 1136
e4b61340
LP		 1137 } else {
1138 assert(arg_action < ELEMENTSOF(table));
1139 assert(table[arg_action]);
1140
1141 method = "StartUnit";
514f4ef5
LP		 1142
1143 mode = (arg_action == ACTION_EMERGENCY ||
1144 arg_action == ACTION_RESCUE) ? "isolate" : "replace";
1145
1146 one_name = table[arg_action];
1147 }
1148
6e905d93 1149 if (!arg_no_block) {
514f4ef5
LP		 1150 if ((r = enable_wait_for_jobs(bus)) < 0) {
1151 log_error("Could not watch jobs: %s", strerror(-r));
1152 goto finish;
1153 }
1154
1155 if (!(s = set_new(string_hash_func, string_compare_func))) {
1156 log_error("Failed to allocate set.");
1157 r = -ENOMEM;
1158 goto finish;
1159 }
e4b61340
LP		 1160 }
1161
1162 r = 0;
1163
514f4ef5
LP		 1164 if (one_name) {
1165 if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
1166 goto finish;
1167 } else {
e4b61340
LP		 1168 for (i = 1; i < n; i++)
1169 if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
1170 goto finish;
e4b61340
LP		 1171 }
1172
6e905d93 1173 if (!arg_no_block)
514f4ef5
LP		 1174 r = wait_for_jobs(bus, s);
1175
e4b61340
LP		 1176finish:
1177 if (s)
1178 set_free_free(s);
1179
1180 return r;
1181}
1182
514f4ef5 1183static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1184 int r;
1185
514f4ef5
LP		 1186 assert(bus);
1187 assert(args);
1188
983d9c90
LP		 1189 r = start_unit(bus, args, n);
1190
1191 if (r >= 0)
1192 warn_wall(verb_to_action(args[0]));
514f4ef5 1193
983d9c90 1194 return r;
514f4ef5
LP		 1195}
1196
0183528f
LP		 1197static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1198 DBusMessage *m = NULL, *reply = NULL;
1199 const char
1200 *interface = "org.freedesktop.systemd1.Unit",
1201 *property = "ActiveState";
1202 int r = -EADDRNOTAVAIL;
1203 DBusError error;
1204 unsigned i;
1205
1206 assert(bus);
1207 assert(args);
1208
1209 dbus_error_init(&error);
1210
1211 for (i = 1; i < n; i++) {
1212 const char *path = NULL;
1213 const char *state;
1214 DBusMessageIter iter, sub;
1215
1216 if (!(m = dbus_message_new_method_call(
1217 "org.freedesktop.systemd1",
1218 "/org/freedesktop/systemd1",
1219 "org.freedesktop.systemd1.Manager",
1220 "GetUnit"))) {
1221 log_error("Could not allocate message.");
1222 r = -ENOMEM;
1223 goto finish;
1224 }
1225
1226 if (!dbus_message_append_args(m,
1227 DBUS_TYPE_STRING, &args[i],
1228 DBUS_TYPE_INVALID)) {
1229 log_error("Could not append arguments to message.");
1230 r = -ENOMEM;
1231 goto finish;
1232 }
1233
1234 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1235
1236 /* Hmm, cannot figure out anything about this unit... */
1237 if (!arg_quiet)
1238 puts("unknown");
1239
ed2d7a44 1240 dbus_error_free(&error);
0183528f
LP		 1241 continue;
1242 }
1243
1244 if (!dbus_message_get_args(reply, &error,
1245 DBUS_TYPE_OBJECT_PATH, &path,
1246 DBUS_TYPE_INVALID)) {
1247 log_error("Failed to parse reply: %s", error.message);
1248 r = -EIO;
1249 goto finish;
1250 }
1251
1252 dbus_message_unref(m);
1253 if (!(m = dbus_message_new_method_call(
1254 "org.freedesktop.systemd1",
1255 path,
1256 "org.freedesktop.DBus.Properties",
1257 "Get"))) {
1258 log_error("Could not allocate message.");
1259 r = -ENOMEM;
1260 goto finish;
1261 }
1262
1263 if (!dbus_message_append_args(m,
1264 DBUS_TYPE_STRING, &interface,
1265 DBUS_TYPE_STRING, &property,
1266 DBUS_TYPE_INVALID)) {
1267 log_error("Could not append arguments to message.");
1268 r = -ENOMEM;
1269 goto finish;
1270 }
1271
1272 dbus_message_unref(reply);
1273 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1274 log_error("Failed to issue method call: %s", error.message);
1275 r = -EIO;
1276 goto finish;
1277 }
1278
1279 if (!dbus_message_iter_init(reply, &iter) ||
1280 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1281 log_error("Failed to parse reply.");
1282 r = -EIO;
1283 goto finish;
1284 }
1285
1286 dbus_message_iter_recurse(&iter, &sub);
1287
1288 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1289 log_error("Failed to parse reply.");
1290 r = -EIO;
1291 goto finish;
1292 }
1293
1294 dbus_message_iter_get_basic(&sub, &state);
1295
1296 if (!arg_quiet)
1297 puts(state);
1298
01b1b079 1299 if (streq(state, "active") || startswith(state, "reloading"))
0183528f
LP		 1300 r = 0;
1301
1302 dbus_message_unref(m);
1303 dbus_message_unref(reply);
1304 m = reply = NULL;
1305 }
1306
1307finish:
1308 if (m)
1309 dbus_message_unref(m);
1310
1311 if (reply)
1312 dbus_message_unref(reply);
1313
1314 dbus_error_free(&error);
1315
1316 return r;
48220598
LP		 1317}
1318
582a507f
LP		 1319typedef struct ExecStatusInfo {
1320 char *path;
1321 char **argv;
1322
b708e7ce
LP		 1323 bool ignore;
1324
582a507f
LP		 1325 usec_t start_timestamp;
1326 usec_t exit_timestamp;
1327 pid_t pid;
1328 int code;
1329 int status;
1330
1331 LIST_FIELDS(struct ExecStatusInfo, exec);
1332} ExecStatusInfo;
1333
1334static void exec_status_info_free(ExecStatusInfo *i) {
1335 assert(i);
1336
1337 free(i->path);
1338 strv_free(i->argv);
1339 free(i);
1340}
1341
1342static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1343 uint64_t start_timestamp, exit_timestamp;
1344 DBusMessageIter sub2, sub3;
1345 const char*path;
1346 unsigned n;
1347 uint32_t pid;
1348 int32_t code, status;
b708e7ce 1349 dbus_bool_t ignore;
582a507f
LP		 1350
1351 assert(i);
1352 assert(i);
1353
1354 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1355 return -EIO;
1356
1357 dbus_message_iter_recurse(sub, &sub2);
1358
1359 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1360 return -EIO;
1361
1362 if (!(i->path = strdup(path)))
1363 return -ENOMEM;
1364
1365 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1366 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1367 return -EIO;
1368
1369 n = 0;
1370 dbus_message_iter_recurse(&sub2, &sub3);
1371 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1372 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1373 dbus_message_iter_next(&sub3);
1374 n++;
1375 }
1376
1377
1378 if (!(i->argv = new0(char*, n+1)))
1379 return -ENOMEM;
1380
1381 n = 0;
1382 dbus_message_iter_recurse(&sub2, &sub3);
1383 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1384 const char *s;
1385
1386 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1387 dbus_message_iter_get_basic(&sub3, &s);
1388 dbus_message_iter_next(&sub3);
1389
1390 if (!(i->argv[n++] = strdup(s)))
1391 return -ENOMEM;
1392 }
1393
1394 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1395 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1396 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1397 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1398 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1399 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1400 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1401 return -EIO;
1402
b708e7ce 1403 i->ignore = ignore;
582a507f
LP		 1404 i->start_timestamp = (usec_t) start_timestamp;
1405 i->exit_timestamp = (usec_t) exit_timestamp;
1406 i->pid = (pid_t) pid;
1407 i->code = code;
1408 i->status = status;
1409
1410 return 0;
1411}
1412
61cbdc4b
LP		 1413typedef struct UnitStatusInfo {
1414 const char *id;
1415 const char *load_state;
1416 const char *active_state;
1417 const char *sub_state;
1418
1419 const char *description;
1420
c31b4423 1421 const char *path;
61cbdc4b
LP		 1422 const char *default_control_group;
1423
45fb0699
LP		 1424 bool need_daemon_reload;
1425
61cbdc4b
LP		 1426 /* Service */
1427 pid_t main_pid;
1428 pid_t control_pid;
1429 const char *status_text;
1430 bool running;
1431
1432 usec_t start_timestamp;
1433 usec_t exit_timestamp;
1434
1435 int exit_code, exit_status;
1436
1437 /* Socket */
1438 unsigned n_accepted;
1439 unsigned n_connections;
b8131a87 1440 bool accept;
61cbdc4b
LP		 1441
1442 /* Device */
1443 const char *sysfs_path;
1444
1445 /* Mount, Automount */
1446 const char *where;
1447
1448 /* Swap */
1449 const char *what;
582a507f
LP		 1450
1451 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1452} UnitStatusInfo;
1453
1454static void print_status_info(UnitStatusInfo *i) {
582a507f 1455 ExecStatusInfo *p;
2ee68f72 1456 const char *on, *off, *ss;
582a507f 1457
61cbdc4b
LP		 1458 assert(i);
1459
1460 /* This shows pretty information about a unit. See
1461 * print_property() for a low-level property printer */
1462
1463 printf("%s", strna(i->id));
1464
1465 if (i->description && !streq_ptr(i->id, i->description))
1466 printf(" - %s", i->description);
1467
1468 printf("\n");
1469
c31b4423
LP		 1470 if (streq_ptr(i->load_state, "failed")) {
1471 on = ansi_highlight(true);
1472 off = ansi_highlight(false);
1473 } else
1474 on = off = "";
1475
1476 if (i->path)
1477 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1478 else
c31b4423 1479 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1480
2ee68f72
LP		 1481 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1482
582a507f 1483 if (streq_ptr(i->active_state, "maintenance")) {
2ee68f72
LP		 1484 on = ansi_highlight(true);
1485 off = ansi_highlight(false);
1486 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1487 on = ansi_highlight_green(true);
1488 off = ansi_highlight_green(false);
1489 } else
1490 on = off = "";
1491
1492 if (ss)
1493 printf("\t Active: %s%s (%s)%s\n",
1494 on,
1495 strna(i->active_state),
1496 ss,
1497 off);
1498 else
1499 printf("\t Active: %s%s%s\n",
1500 on,
1501 strna(i->active_state),
1502 off);
61cbdc4b
LP		 1503
1504 if (i->sysfs_path)
1505 printf("\t Device: %s\n", i->sysfs_path);
1506 else if (i->where)
1507 printf("\t Where: %s\n", i->where);
1508 else if (i->what)
1509 printf("\t What: %s\n", i->what);
1510
b8131a87 1511 if (i->accept)
61cbdc4b
LP		 1512 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1513
582a507f
LP		 1514 LIST_FOREACH(exec, p, i->exec) {
1515 char *t;
1516
1517 /* Only show exited processes here */
1518 if (p->code == 0)
1519 continue;
1520
1521 t = strv_join(p->argv, " ");
1522 printf("\t Exited: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
1523 free(t);
1524
1525 if (p->code == CLD_EXITED)
1526 printf("status=%i", p->status);
1527 else
1528 printf("signal=%s", signal_to_string(p->status));
1529 printf(")\n");
1530
1531 if (i->main_pid == p->pid &&
1532 i->start_timestamp == p->start_timestamp &&
1533 i->exit_timestamp == p->start_timestamp)
1534 /* Let's not show this twice */
1535 i->main_pid = 0;
1536
1537 if (p->pid == i->control_pid)
1538 i->control_pid = 0;
1539 }
1540
61cbdc4b
LP		 1541 if (i->main_pid > 0 || i->control_pid > 0) {
1542 printf("\t");
1543
1544 if (i->main_pid > 0) {
582a507f 1545 printf(" Main: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1546
1547 if (i->running) {
1548 char *t = NULL;
1549 get_process_name(i->main_pid, &t);
1550 if (t) {
1551 printf(" (%s)", t);
1552 free(t);
1553 }
6d4fc029 1554 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1555 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1556
1557 if (i->exit_code == CLD_EXITED)
1558 printf("status=%i", i->exit_status);
1559 else
582a507f 1560 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1561 printf(")");
1562 }
61cbdc4b
LP		 1563 }
1564
1565 if (i->main_pid > 0 && i->control_pid > 0)
1566 printf(";");
1567
1568 if (i->control_pid > 0) {
1569 char *t = NULL;
1570
1571 printf(" Control: %u", (unsigned) i->control_pid);
1572
1573 get_process_name(i->control_pid, &t);
1574 if (t) {
1575 printf(" (%s)", t);
1576 free(t);
1577 }
1578 }
1579
1580 printf("\n");
1581 }
1582
17bb7382
LP		 1583 if (i->status_text)
1584 printf("\t Status: \"%s\"\n", i->status_text);
1585
c59760ee 1586 if (i->default_control_group) {
ab35fb1b
LP		 1587 unsigned c;
1588
61cbdc4b 1589 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1590
1591 if ((c = columns()) > 18)
1592 c -= 18;
1593 else
1594 c = 0;
1595
35d2e7ec 1596 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1597 }
45fb0699
LP		 1598
1599 if (i->need_daemon_reload)
2cc59dbf
LP		 1600 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1601 ansi_highlight(true),
1602 ansi_highlight(false),
45fb0699 1603 arg_session ? "--session" : "--system");
61cbdc4b
LP		 1604}
1605
1606static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1607
1608 switch (dbus_message_iter_get_arg_type(iter)) {
1609
1610 case DBUS_TYPE_STRING: {
1611 const char *s;
1612
1613 dbus_message_iter_get_basic(iter, &s);
1614
1615 if (s[0]) {
1616 if (streq(name, "Id"))
1617 i->id = s;
1618 else if (streq(name, "LoadState"))
1619 i->load_state = s;
1620 else if (streq(name, "ActiveState"))
1621 i->active_state = s;
1622 else if (streq(name, "SubState"))
1623 i->sub_state = s;
1624 else if (streq(name, "Description"))
1625 i->description = s;
1626 else if (streq(name, "FragmentPath"))
c31b4423
LP		 1627 i->path = s;
1628 else if (streq(name, "SysVPath"))
1629 i->path = s;
61cbdc4b
LP		 1630 else if (streq(name, "DefaultControlGroup"))
1631 i->default_control_group = s;
1632 else if (streq(name, "StatusText"))
1633 i->status_text = s;
1634 else if (streq(name, "SysFSPath"))
1635 i->sysfs_path = s;
1636 else if (streq(name, "Where"))
1637 i->where = s;
1638 else if (streq(name, "What"))
1639 i->what = s;
1640 }
1641
1642 break;
1643 }
1644
b8131a87
LP		 1645 case DBUS_TYPE_BOOLEAN: {
1646 dbus_bool_t b;
1647
1648 dbus_message_iter_get_basic(iter, &b);
1649
1650 if (streq(name, "Accept"))
1651 i->accept = b;
45fb0699
LP		 1652 else if (streq(name, "NeedDaemonReload"))
1653 i->need_daemon_reload = b;
b8131a87
LP		 1654
1655 break;
1656 }
1657
61cbdc4b
LP		 1658 case DBUS_TYPE_UINT32: {
1659 uint32_t u;
1660
1661 dbus_message_iter_get_basic(iter, &u);
1662
1663 if (streq(name, "MainPID")) {
1664 if (u > 0) {
1665 i->main_pid = (pid_t) u;
1666 i->running = true;
1667 }
1668 } else if (streq(name, "ControlPID"))
1669 i->control_pid = (pid_t) u;
1670 else if (streq(name, "ExecMainPID")) {
1671 if (u > 0)
1672 i->main_pid = (pid_t) u;
1673 } else if (streq(name, "NAccepted"))
1674 i->n_accepted = u;
1675 else if (streq(name, "NConnections"))
1676 i->n_connections = u;
1677
1678 break;
1679 }
1680
1681 case DBUS_TYPE_INT32: {
1682 int32_t j;
1683
1684 dbus_message_iter_get_basic(iter, &j);
1685
1686 if (streq(name, "ExecMainCode"))
1687 i->exit_code = (int) j;
1688 else if (streq(name, "ExecMainStatus"))
1689 i->exit_status = (int) j;
1690
1691 break;
1692 }
1693
1694 case DBUS_TYPE_UINT64: {
1695 uint64_t u;
1696
1697 dbus_message_iter_get_basic(iter, &u);
1698
1699 if (streq(name, "ExecMainStartTimestamp"))
1700 i->start_timestamp = (usec_t) u;
1701 else if (streq(name, "ExecMainExitTimestamp"))
1702 i->exit_timestamp = (usec_t) u;
1703
1704 break;
1705 }
582a507f
LP		 1706
1707 case DBUS_TYPE_ARRAY: {
1708
1709 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1710 startswith(name, "Exec")) {
1711 DBusMessageIter sub;
1712
1713 dbus_message_iter_recurse(iter, &sub);
1714 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1715 ExecStatusInfo *info;
1716 int r;
1717
1718 if (!(info = new0(ExecStatusInfo, 1)))
1719 return -ENOMEM;
1720
1721 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1722 free(info);
1723 return r;
1724 }
1725
1726 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1727
1728 dbus_message_iter_next(&sub);
1729 }
1730 }
1731
1732 break;
1733 }
61cbdc4b
LP		 1734 }
1735
1736 return 0;
1737}
1738
48220598
LP		 1739static int print_property(const char *name, DBusMessageIter *iter) {
1740 assert(name);
1741 assert(iter);
1742
61cbdc4b
LP		 1743 /* This is a low-level property printer, see
1744 * print_status_info() for the nicer output */
1745
ea4a240d 1746 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 1747 return 0;
1748
1749 switch (dbus_message_iter_get_arg_type(iter)) {
1750
1751 case DBUS_TYPE_STRING: {
1752 const char *s;
1753 dbus_message_iter_get_basic(iter, &s);
1754
1755 if (arg_all || s[0])
1756 printf("%s=%s\n", name, s);
1757
1758 return 0;
1759 }
1760
1761 case DBUS_TYPE_BOOLEAN: {
1762 dbus_bool_t b;
1763 dbus_message_iter_get_basic(iter, &b);
1764 printf("%s=%s\n", name, yes_no(b));
1765
1766 return 0;
1767 }
1768
1769 case DBUS_TYPE_UINT64: {
1770 uint64_t u;
1771 dbus_message_iter_get_basic(iter, &u);
1772
1773 /* Yes, heuristics! But we can change this check
1774 * should it turn out to not be sufficient */
1775
14ad1d14 1776 if (strstr(name, "Timestamp")) {
48220598
LP		 1777 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1778
1779 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1780 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 1781 } else if (strstr(name, "USec")) {
1782 char timespan[FORMAT_TIMESPAN_MAX];
1783
1784 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 1785 } else
1786 printf("%s=%llu\n", name, (unsigned long long) u);
1787
1788 return 0;
1789 }
1790
1791 case DBUS_TYPE_UINT32: {
1792 uint32_t u;
1793 dbus_message_iter_get_basic(iter, &u);
1794
5bd07073 1795 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 1796 printf("%s=%04o\n", name, u);
1797 else
1798 printf("%s=%u\n", name, (unsigned) u);
1799
1800 return 0;
1801 }
1802
1803 case DBUS_TYPE_INT32: {
1804 int32_t i;
1805 dbus_message_iter_get_basic(iter, &i);
1806
1807 printf("%s=%i\n", name, (int) i);
1808 return 0;
1809 }
1810
1811 case DBUS_TYPE_STRUCT: {
1812 DBusMessageIter sub;
1813 dbus_message_iter_recurse(iter, &sub);
1814
ebf57b80 1815 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 1816 uint32_t u;
1817
1818 dbus_message_iter_get_basic(&sub, &u);
1819
1820 if (u)
1821 printf("%s=%u\n", name, (unsigned) u);
1822 else if (arg_all)
1823 printf("%s=\n", name);
1824
1825 return 0;
ebf57b80 1826 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 1827 const char *s;
1828
1829 dbus_message_iter_get_basic(&sub, &s);
1830
1831 if (arg_all || s[0])
1832 printf("%s=%s\n", name, s);
1833
1834 return 0;
1835 }
1836
1837 break;
1838 }
1839
1840 case DBUS_TYPE_ARRAY:
1841
1842 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
1843 DBusMessageIter sub;
1844 bool space = false;
1845
1846 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 1847 if (arg_all ||
1848 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1849 printf("%s=", name);
1850
1851 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1852 const char *s;
1853
1854 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
1855 dbus_message_iter_get_basic(&sub, &s);
1856 printf("%s%s", space ? " " : "", s);
1857
1858 space = true;
1859 dbus_message_iter_next(&sub);
1860 }
1861
1862 puts("");
1863 }
1864
ebf57b80 1865 return 0;
582a507f 1866
82c121a4
LP		 1867 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
1868 DBusMessageIter sub;
1869
1870 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 1871 if (arg_all ||
1872 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1873 printf("%s=", name);
1874
1875 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1876 uint8_t u;
ebf57b80 1877
82c121a4
LP		 1878 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
1879 dbus_message_iter_get_basic(&sub, &u);
1880 printf("%02x", u);
1881
1882 dbus_message_iter_next(&sub);
1883 }
1884
1885 puts("");
1886 }
1887
1888 return 0;
582a507f 1889
ebf57b80
LP		 1890 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
1891 DBusMessageIter sub, sub2;
1892
1893 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 1894 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1895 const char *type, *path;
1896
1897 dbus_message_iter_recurse(&sub, &sub2);
1898
1899 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
1900 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
1901 printf("%s=%s\n", type, path);
1902
1903 dbus_message_iter_next(&sub);
1904 }
1905
707e5e52 1906 return 0;
582a507f 1907
707e5e52
LP		 1908 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
1909 DBusMessageIter sub, sub2;
1910
1911 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 1912 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1913 const char *base;
1914 uint64_t value, next_elapse;
1915
1916 dbus_message_iter_recurse(&sub, &sub2);
1917
1918 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
1919 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 1920 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
1921 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
1922
1923 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 1924 base,
552e4331
LP		 1925 format_timespan(timespan1, sizeof(timespan1), value),
1926 format_timespan(timespan2, sizeof(timespan2), next_elapse));
1927 }
fe68089d
LP		 1928
1929 dbus_message_iter_next(&sub);
1930 }
1931
1932 return 0;
fe68089d 1933
582a507f
LP		 1934 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
1935 DBusMessageIter sub;
fe68089d
LP		 1936
1937 dbus_message_iter_recurse(iter, &sub);
fe68089d 1938 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 1939 ExecStatusInfo info;
fe68089d 1940
582a507f
LP		 1941 zero(info);
1942 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 1943 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 1944 char *t;
1945
1946 t = strv_join(info.argv, " ");
1947
b708e7ce 1948 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		 1949 name,
1950 strna(info.path),
1951 strna(t),
b708e7ce 1952 yes_no(info.ignore),
582a507f
LP		 1953 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
1954 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
1955 (unsigned) info. pid,
1956 sigchld_code_to_string(info.code),
1957 info.status,
1958 info.code == CLD_EXITED ? "" : "/",
1959 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 1960
582a507f 1961 free(t);
fe68089d
LP		 1962 }
1963
582a507f
LP		 1964 free(info.path);
1965 strv_free(info.argv);
707e5e52
LP		 1966
1967 dbus_message_iter_next(&sub);
1968 }
1969
48220598
LP		 1970 return 0;
1971 }
1972
1973 break;
1974 }
1975
1976 if (arg_all)
1977 printf("%s=[unprintable]\n", name);
1978
1979 return 0;
1980}
1981
61cbdc4b 1982static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 1983 DBusMessage *m = NULL, *reply = NULL;
1984 const char *interface = "";
1985 int r;
1986 DBusError error;
1987 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 1988 UnitStatusInfo info;
582a507f 1989 ExecStatusInfo *p;
48220598
LP		 1990
1991 assert(bus);
1992 assert(path);
61cbdc4b 1993 assert(new_line);
48220598 1994
61cbdc4b 1995 zero(info);
48220598
LP		 1996 dbus_error_init(&error);
1997
1998 if (!(m = dbus_message_new_method_call(
1999 "org.freedesktop.systemd1",
2000 path,
2001 "org.freedesktop.DBus.Properties",
2002 "GetAll"))) {
2003 log_error("Could not allocate message.");
2004 r = -ENOMEM;
2005 goto finish;
2006 }
2007
2008 if (!dbus_message_append_args(m,
2009 DBUS_TYPE_STRING, &interface,
2010 DBUS_TYPE_INVALID)) {
2011 log_error("Could not append arguments to message.");
2012 r = -ENOMEM;
2013 goto finish;
2014 }
2015
2016 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2017 log_error("Failed to issue method call: %s", error.message);
2018 r = -EIO;
2019 goto finish;
2020 }
2021
2022 if (!dbus_message_iter_init(reply, &iter) ||
2023 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2024 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2025 log_error("Failed to parse reply.");
2026 r = -EIO;
2027 goto finish;
2028 }
2029
2030 dbus_message_iter_recurse(&iter, &sub);
2031
61cbdc4b
LP		 2032 if (*new_line)
2033 printf("\n");
2034
2035 *new_line = true;
2036
48220598
LP		 2037 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2038 const char *name;
2039
2040 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2041 log_error("Failed to parse reply.");
2042 r = -EIO;
2043 goto finish;
2044 }
2045
2046 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2047
48220598
LP		 2048 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2049 log_error("Failed to parse reply.");
2050 r = -EIO;
2051 goto finish;
2052 }
2053
2054 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2055 log_error("Failed to parse reply.");
2056 r = -EIO;
2057 goto finish;
2058 }
2059
2060 dbus_message_iter_recurse(&sub2, &sub3);
2061
61cbdc4b
LP		 2062 if (show_properties)
2063 r = print_property(name, &sub3);
2064 else
2065 r = status_property(name, &sub3, &info);
2066
2067 if (r < 0) {
48220598
LP		 2068 log_error("Failed to parse reply.");
2069 r = -EIO;
2070 goto finish;
2071 }
2072
2073 dbus_message_iter_next(&sub);
2074 }
2075
61cbdc4b
LP		 2076 if (!show_properties)
2077 print_status_info(&info);
2078
582a507f
LP		 2079 while ((p = info.exec)) {
2080 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2081 exec_status_info_free(p);
2082 }
2083
48220598
LP		 2084 r = 0;
2085
2086finish:
2087 if (m)
2088 dbus_message_unref(m);
2089
2090 if (reply)
2091 dbus_message_unref(reply);
2092
2093 dbus_error_free(&error);
2094
2095 return r;
2096}
2097
2098static int show(DBusConnection *bus, char **args, unsigned n) {
2099 DBusMessage *m = NULL, *reply = NULL;
2100 int r;
2101 DBusError error;
2102 unsigned i;
61cbdc4b 2103 bool show_properties, new_line = false;
48220598
LP		 2104
2105 assert(bus);
2106 assert(args);
2107
2108 dbus_error_init(&error);
2109
61cbdc4b
LP		 2110 show_properties = !streq(args[0], "status");
2111
2112 if (show_properties && n <= 1) {
48220598
LP		 2113 /* If not argument is specified inspect the manager
2114 * itself */
2115
61cbdc4b 2116 r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2117 goto finish;
2118 }
2119
2120 for (i = 1; i < n; i++) {
2121 const char *path = NULL;
2122 uint32_t id;
2123
598b557b
LP		 2124 if (safe_atou32(args[i], &id) < 0) {
2125
2126 /* Interpret as unit name */
48220598
LP		 2127
2128 if (!(m = dbus_message_new_method_call(
2129 "org.freedesktop.systemd1",
2130 "/org/freedesktop/systemd1",
2131 "org.freedesktop.systemd1.Manager",
e87d1818 2132 "LoadUnit"))) {
48220598
LP		 2133 log_error("Could not allocate message.");
2134 r = -ENOMEM;
2135 goto finish;
2136 }
2137
2138 if (!dbus_message_append_args(m,
2139 DBUS_TYPE_STRING, &args[i],
2140 DBUS_TYPE_INVALID)) {
2141 log_error("Could not append arguments to message.");
2142 r = -ENOMEM;
2143 goto finish;
2144 }
2145
ed2d7a44
LP		 2146 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2147
2148 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2149 log_error("Failed to issue method call: %s", error.message);
2150 r = -EIO;
2151 goto finish;
2152 }
2153
2154 dbus_error_free(&error);
2155
2156 dbus_message_unref(m);
2157 if (!(m = dbus_message_new_method_call(
2158 "org.freedesktop.systemd1",
2159 "/org/freedesktop/systemd1",
2160 "org.freedesktop.systemd1.Manager",
2161 "GetUnit"))) {
2162 log_error("Could not allocate message.");
2163 r = -ENOMEM;
2164 goto finish;
2165 }
2166
2167 if (!dbus_message_append_args(m,
2168 DBUS_TYPE_STRING, &args[i],
2169 DBUS_TYPE_INVALID)) {
2170 log_error("Could not append arguments to message.");
2171 r = -ENOMEM;
2172 goto finish;
2173 }
2174
2175 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2176 log_error("Failed to issue method call: %s", error.message);
2177 r = -EIO;
2178 goto finish;
2179 }
2180 }
2181
598b557b
LP		 2182 } else if (show_properties) {
2183
2184 /* Interpret as job id */
48220598
LP		 2185
2186 if (!(m = dbus_message_new_method_call(
2187 "org.freedesktop.systemd1",
2188 "/org/freedesktop/systemd1",
2189 "org.freedesktop.systemd1.Manager",
2190 "GetJob"))) {
2191 log_error("Could not allocate message.");
2192 r = -ENOMEM;
2193 goto finish;
2194 }
2195
2196 if (!dbus_message_append_args(m,
2197 DBUS_TYPE_UINT32, &id,
2198 DBUS_TYPE_INVALID)) {
2199 log_error("Could not append arguments to message.");
2200 r = -ENOMEM;
2201 goto finish;
2202 }
48220598 2203
598b557b
LP		 2204 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2205 log_error("Failed to issue method call: %s", error.message);
2206 r = -EIO;
2207 goto finish;
2208 }
2209 } else {
2210
2211 /* Interpret as PID */
2212
2213 if (!(m = dbus_message_new_method_call(
2214 "org.freedesktop.systemd1",
2215 "/org/freedesktop/systemd1",
2216 "org.freedesktop.systemd1.Manager",
2217 "GetUnitByPID"))) {
2218 log_error("Could not allocate message.");
2219 r = -ENOMEM;
2220 goto finish;
2221 }
2222
2223 if (!dbus_message_append_args(m,
2224 DBUS_TYPE_UINT32, &id,
2225 DBUS_TYPE_INVALID)) {
2226 log_error("Could not append arguments to message.");
2227 r = -ENOMEM;
2228 goto finish;
2229 }
2230
ed2d7a44
LP		 2231 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2232 log_error("Failed to issue method call: %s", error.message);
2233 r = -EIO;
2234 goto finish;
2235 }
48220598
LP		 2236 }
2237
2238 if (!dbus_message_get_args(reply, &error,
2239 DBUS_TYPE_OBJECT_PATH, &path,
2240 DBUS_TYPE_INVALID)) {
2241 log_error("Failed to parse reply: %s", error.message);
2242 r = -EIO;
2243 goto finish;
2244 }
2245
61cbdc4b 2246 if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
48220598
LP		 2247 goto finish;
2248
2249 dbus_message_unref(m);
2250 dbus_message_unref(reply);
2251 m = reply = NULL;
2252 }
2253
2254 r = 0;
2255
2256finish:
2257 if (m)
2258 dbus_message_unref(m);
2259
2260 if (reply)
2261 dbus_message_unref(reply);
2262
2263 dbus_error_free(&error);
2264
2265 return r;
0183528f
LP		 2266}
2267
7e4249b9
LP		 2268static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2269 DBusError error;
2270 DBusMessage *m = NULL, *reply = NULL;
2271
2272 assert(connection);
2273 assert(message);
2274
2275 dbus_error_init(&error);
2276
54165a39
LP		 2277 log_debug("Got D-Bus request: %s.%s() on %s",
2278 dbus_message_get_interface(message),
2279 dbus_message_get_member(message),
2280 dbus_message_get_path(message));
7e4249b9
LP		 2281
2282 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2283 log_error("Warning! D-Bus connection terminated.");
2284 dbus_connection_close(connection);
2285
2286 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2287 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2288 const char *id, *path;
2289
2290 if (!dbus_message_get_args(message, &error,
2291 DBUS_TYPE_STRING, &id,
2292 DBUS_TYPE_OBJECT_PATH, &path,
2293 DBUS_TYPE_INVALID))
2294 log_error("Failed to parse message: %s", error.message);
2295 else if (streq(dbus_message_get_member(message), "UnitNew"))
2296 printf("Unit %s added.\n", id);
2297 else
2298 printf("Unit %s removed.\n", id);
2299
2300 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2301 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2302 uint32_t id;
2303 const char *path;
2304
2305 if (!dbus_message_get_args(message, &error,
2306 DBUS_TYPE_UINT32, &id,
2307 DBUS_TYPE_OBJECT_PATH, &path,
2308 DBUS_TYPE_INVALID))
2309 log_error("Failed to parse message: %s", error.message);
2310 else if (streq(dbus_message_get_member(message), "JobNew"))
2311 printf("Job %u added.\n", id);
2312 else
2313 printf("Job %u removed.\n", id);
2314
2315
2316 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Unit", "Changed") ||
2317 dbus_message_is_signal(message, "org.freedesktop.systemd1.Job", "Changed")) {
2318
2319 const char *path, *interface, *property = "Id";
2320 DBusMessageIter iter, sub;
2321
2322 path = dbus_message_get_path(message);
2323 interface = dbus_message_get_interface(message);
2324
2325 if (!(m = dbus_message_new_method_call(
2326 "org.freedesktop.systemd1",
2327 path,
2328 "org.freedesktop.DBus.Properties",
2329 "Get"))) {
2330 log_error("Could not allocate message.");
2331 goto oom;
2332 }
2333
2334 if (!dbus_message_append_args(m,
2335 DBUS_TYPE_STRING, &interface,
2336 DBUS_TYPE_STRING, &property,
2337 DBUS_TYPE_INVALID)) {
2338 log_error("Could not append arguments to message.");
2339 goto finish;
2340 }
2341
2342 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2343 log_error("Failed to issue method call: %s", error.message);
2344 goto finish;
2345 }
2346
2347 if (!dbus_message_iter_init(reply, &iter) ||
2348 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2349 log_error("Failed to parse reply.");
2350 goto finish;
2351 }
2352
2353 dbus_message_iter_recurse(&iter, &sub);
2354
2355 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2356 const char *id;
2357
2358 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2359 log_error("Failed to parse reply.");
2360 goto finish;
2361 }
2362
2363 dbus_message_iter_get_basic(&sub, &id);
2364 printf("Unit %s changed.\n", id);
2365 } else {
2366 uint32_t id;
2367
2368 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2369 log_error("Failed to parse reply.");
2370 goto finish;
2371 }
2372
2373 dbus_message_iter_get_basic(&sub, &id);
2374 printf("Job %u changed.\n", id);
2375 }
2376 }
2377
2378finish:
2379 if (m)
2380 dbus_message_unref(m);
2381
2382 if (reply)
2383 dbus_message_unref(reply);
2384
2385 dbus_error_free(&error);
2386 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2387
2388oom:
2389 if (m)
2390 dbus_message_unref(m);
2391
2392 if (reply)
2393 dbus_message_unref(reply);
2394
2395 dbus_error_free(&error);
2396 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2397}
2398
2399static int monitor(DBusConnection *bus, char **args, unsigned n) {
2400 DBusMessage *m = NULL, *reply = NULL;
2401 DBusError error;
2402 int r;
2403
2404 dbus_error_init(&error);
2405
f4579ce7
LP		 2406 if (!private_bus) {
2407 dbus_bus_add_match(bus,
2408 "type='signal',"
2409 "sender='org.freedesktop.systemd1',"
2410 "interface='org.freedesktop.systemd1.Manager',"
2411 "path='/org/freedesktop/systemd1'",
2412 &error);
7e4249b9 2413
f4579ce7
LP		 2414 if (dbus_error_is_set(&error)) {
2415 log_error("Failed to add match: %s", error.message);
2416 r = -EIO;
2417 goto finish;
2418 }
7e4249b9 2419
f4579ce7
LP		 2420 dbus_bus_add_match(bus,
2421 "type='signal',"
2422 "sender='org.freedesktop.systemd1',"
2423 "interface='org.freedesktop.systemd1.Unit',"
2424 "member='Changed'",
2425 &error);
7e4249b9 2426
f4579ce7
LP		 2427 if (dbus_error_is_set(&error)) {
2428 log_error("Failed to add match: %s", error.message);
2429 r = -EIO;
2430 goto finish;
2431 }
7e4249b9 2432
f4579ce7
LP		 2433 dbus_bus_add_match(bus,
2434 "type='signal',"
2435 "sender='org.freedesktop.systemd1',"
2436 "interface='org.freedesktop.systemd1.Job',"
2437 "member='Changed'",
2438 &error);
7e4249b9 2439
f4579ce7
LP		 2440 if (dbus_error_is_set(&error)) {
2441 log_error("Failed to add match: %s", error.message);
2442 r = -EIO;
2443 goto finish;
2444 }
7e4249b9
LP		 2445 }
2446
2447 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2448 log_error("Failed to add filter.");
2449 r = -ENOMEM;
2450 goto finish;
2451 }
2452
2453 if (!(m = dbus_message_new_method_call(
2454 "org.freedesktop.systemd1",
2455 "/org/freedesktop/systemd1",
2456 "org.freedesktop.systemd1.Manager",
2457 "Subscribe"))) {
2458 log_error("Could not allocate message.");
2459 r = -ENOMEM;
2460 goto finish;
2461 }
2462
2463 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2464 log_error("Failed to issue method call: %s", error.message);
2465 r = -EIO;
2466 goto finish;
2467 }
2468
2469 while (dbus_connection_read_write_dispatch(bus, -1))
2470 ;
2471
2472 r = 0;
2473
2474finish:
2475
2476 /* This is slightly dirty, since we don't undo the filter or the matches. */
2477
2478 if (m)
2479 dbus_message_unref(m);
2480
2481 if (reply)
2482 dbus_message_unref(reply);
2483
2484 dbus_error_free(&error);
2485
2486 return r;
2487}
2488
2489static int dump(DBusConnection *bus, char **args, unsigned n) {
2490 DBusMessage *m = NULL, *reply = NULL;
2491 DBusError error;
2492 int r;
2493 const char *text;
2494
2495 dbus_error_init(&error);
2496
2497 if (!(m = dbus_message_new_method_call(
2498 "org.freedesktop.systemd1",
2499 "/org/freedesktop/systemd1",
2500 "org.freedesktop.systemd1.Manager",
2501 "Dump"))) {
2502 log_error("Could not allocate message.");
2503 return -ENOMEM;
2504 }
2505
2506 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2507 log_error("Failed to issue method call: %s", error.message);
2508 r = -EIO;
2509 goto finish;
2510 }
2511
2512 if (!dbus_message_get_args(reply, &error,
2513 DBUS_TYPE_STRING, &text,
2514 DBUS_TYPE_INVALID)) {
2515 log_error("Failed to parse reply: %s", error.message);
2516 r = -EIO;
2517 goto finish;
2518 }
2519
2520 fputs(text, stdout);
2521
2522 r = 0;
2523
2524finish:
2525 if (m)
2526 dbus_message_unref(m);
2527
2528 if (reply)
2529 dbus_message_unref(reply);
2530
2531 dbus_error_free(&error);
2532
2533 return r;
2534}
2535
2536static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2537 DBusMessage *m = NULL, *reply = NULL;
2538 DBusError error;
2539 int r;
2540 const char *name = "", *path, *id;
2541 dbus_bool_t cleanup = FALSE;
2542 DBusMessageIter iter, sub;
2543 const char
2544 *interface = "org.freedesktop.systemd1.Unit",
2545 *property = "Id";
2546
2547 dbus_error_init(&error);
2548
2549 if (!(m = dbus_message_new_method_call(
2550 "org.freedesktop.systemd1",
2551 "/org/freedesktop/systemd1",
2552 "org.freedesktop.systemd1.Manager",
2553 "CreateSnapshot"))) {
2554 log_error("Could not allocate message.");
2555 return -ENOMEM;
2556 }
2557
2558 if (n > 1)
2559 name = args[1];
2560
2561 if (!dbus_message_append_args(m,
2562 DBUS_TYPE_STRING, &name,
2563 DBUS_TYPE_BOOLEAN, &cleanup,
2564 DBUS_TYPE_INVALID)) {
2565 log_error("Could not append arguments to message.");
2566 r = -ENOMEM;
2567 goto finish;
2568 }
2569
2570 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2571 log_error("Failed to issue method call: %s", error.message);
2572 r = -EIO;
2573 goto finish;
2574 }
2575
2576 if (!dbus_message_get_args(reply, &error,
2577 DBUS_TYPE_OBJECT_PATH, &path,
2578 DBUS_TYPE_INVALID)) {
2579 log_error("Failed to parse reply: %s", error.message);
2580 r = -EIO;
2581 goto finish;
2582 }
2583
2584 dbus_message_unref(m);
2585 if (!(m = dbus_message_new_method_call(
2586 "org.freedesktop.systemd1",
2587 path,
2588 "org.freedesktop.DBus.Properties",
2589 "Get"))) {
2590 log_error("Could not allocate message.");
2591 return -ENOMEM;
2592 }
2593
2594 if (!dbus_message_append_args(m,
2595 DBUS_TYPE_STRING, &interface,
2596 DBUS_TYPE_STRING, &property,
2597 DBUS_TYPE_INVALID)) {
2598 log_error("Could not append arguments to message.");
2599 r = -ENOMEM;
2600 goto finish;
2601 }
2602
2603 dbus_message_unref(reply);
2604 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2605 log_error("Failed to issue method call: %s", error.message);
2606 r = -EIO;
2607 goto finish;
2608 }
2609
2610 if (!dbus_message_iter_init(reply, &iter) ||
2611 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2612 log_error("Failed to parse reply.");
2613 r = -EIO;
2614 goto finish;
2615 }
2616
2617 dbus_message_iter_recurse(&iter, &sub);
2618
2619 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2620 log_error("Failed to parse reply.");
2621 r = -EIO;
2622 goto finish;
2623 }
2624
2625 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 2626
2627 if (!arg_quiet)
2628 puts(id);
7e4249b9
LP		 2629 r = 0;
2630
2631finish:
2632 if (m)
2633 dbus_message_unref(m);
2634
2635 if (reply)
2636 dbus_message_unref(reply);
2637
2638 dbus_error_free(&error);
2639
2640 return r;
2641}
2642
6759e7a7
LP		 2643static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2644 DBusMessage *m = NULL, *reply = NULL;
2645 int r;
2646 DBusError error;
2647 unsigned i;
2648
2649 assert(bus);
2650 assert(args);
2651
2652 dbus_error_init(&error);
2653
2654 for (i = 1; i < n; i++) {
2655 const char *path = NULL;
2656
2657 if (!(m = dbus_message_new_method_call(
2658 "org.freedesktop.systemd1",
2659 "/org/freedesktop/systemd1",
2660 "org.freedesktop.systemd1.Manager",
2661 "GetUnit"))) {
2662 log_error("Could not allocate message.");
2663 r = -ENOMEM;
2664 goto finish;
2665 }
2666
2667 if (!dbus_message_append_args(m,
2668 DBUS_TYPE_STRING, &args[i],
2669 DBUS_TYPE_INVALID)) {
2670 log_error("Could not append arguments to message.");
2671 r = -ENOMEM;
2672 goto finish;
2673 }
2674
2675 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2676 log_error("Failed to issue method call: %s", error.message);
2677 r = -EIO;
2678 goto finish;
2679 }
2680
2681 if (!dbus_message_get_args(reply, &error,
2682 DBUS_TYPE_OBJECT_PATH, &path,
2683 DBUS_TYPE_INVALID)) {
2684 log_error("Failed to parse reply: %s", error.message);
2685 r = -EIO;
2686 goto finish;
2687 }
2688
2689 dbus_message_unref(m);
2690 if (!(m = dbus_message_new_method_call(
2691 "org.freedesktop.systemd1",
2692 path,
2693 "org.freedesktop.systemd1.Snapshot",
2694 "Remove"))) {
2695 log_error("Could not allocate message.");
2696 r = -ENOMEM;
2697 goto finish;
2698 }
2699
2700 dbus_message_unref(reply);
2701 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2702 log_error("Failed to issue method call: %s", error.message);
2703 r = -EIO;
2704 goto finish;
2705 }
2706
2707 dbus_message_unref(m);
2708 dbus_message_unref(reply);
2709 m = reply = NULL;
2710 }
2711
2712 r = 0;
2713
2714finish:
2715 if (m)
2716 dbus_message_unref(m);
2717
2718 if (reply)
2719 dbus_message_unref(reply);
2720
2721 dbus_error_free(&error);
2722
2723 return r;
2724}
2725
ee5762e3 2726static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 2727 DBusMessage *m = NULL, *reply = NULL;
2728 DBusError error;
2729 int r;
2730 const char *method;
2731
2732 dbus_error_init(&error);
2733
e4b61340
LP		 2734 if (arg_action == ACTION_RELOAD)
2735 method = "Reload";
2736 else if (arg_action == ACTION_REEXEC)
2737 method = "Reexecute";
2738 else {
2739 assert(arg_action == ACTION_SYSTEMCTL);
2740
2741 method =
ee5762e3
LP		 2742 streq(args[0], "clear-jobs") ||
2743 streq(args[0], "cancel") ? "ClearJobs" :
5632e374
LP		 2744 streq(args[0], "daemon-reexec") ? "Reexecute" :
2745 streq(args[0], "reset-maintenance") ? "ResetMaintenance" :
ee5762e3
LP		 2746 streq(args[0], "daemon-exit") ? "Exit" :
2747 "Reload";
e4b61340 2748 }
7e4249b9
LP		 2749
2750 if (!(m = dbus_message_new_method_call(
2751 "org.freedesktop.systemd1",
2752 "/org/freedesktop/systemd1",
2753 "org.freedesktop.systemd1.Manager",
2754 method))) {
2755 log_error("Could not allocate message.");
2756 return -ENOMEM;
2757 }
2758
2759 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 2760
2761 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2762 /* There's always a fallback possible for
2763 * legacy actions. */
2764 r = 0;
2765 goto finish;
2766 }
2767
7e4249b9
LP		 2768 log_error("Failed to issue method call: %s", error.message);
2769 r = -EIO;
2770 goto finish;
2771 }
2772
e4b61340 2773 r = 1;
7e4249b9
LP		 2774
2775finish:
2776 if (m)
2777 dbus_message_unref(m);
2778
2779 if (reply)
2780 dbus_message_unref(reply);
2781
2782 dbus_error_free(&error);
2783
2784 return r;
2785}
2786
5632e374
LP		 2787static int reset_maintenance(DBusConnection *bus, char **args, unsigned n) {
2788 DBusMessage *m = NULL, *reply = NULL;
2789 unsigned i;
2790 int r;
2791 DBusError error;
2792
2793 assert(bus);
2794 dbus_error_init(&error);
2795
2796 if (n <= 1)
ee5762e3 2797 return daemon_reload(bus, args, n);
5632e374
LP		 2798
2799 for (i = 1; i < n; i++) {
2800
2801 if (!(m = dbus_message_new_method_call(
2802 "org.freedesktop.systemd1",
2803 "/org/freedesktop/systemd1",
2804 "org.freedesktop.systemd1.Manager",
2805 "ResetMaintenanceUnit"))) {
2806 log_error("Could not allocate message.");
2807 r = -ENOMEM;
2808 goto finish;
2809 }
2810
2811 if (!dbus_message_append_args(m,
2812 DBUS_TYPE_STRING, args + i,
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 dbus_message_unref(m);
2826 dbus_message_unref(reply);
2827 m = reply = NULL;
2828 }
2829
2830 r = 0;
2831
2832finish:
2833 if (m)
2834 dbus_message_unref(m);
2835
2836 if (reply)
2837 dbus_message_unref(reply);
2838
2839 dbus_error_free(&error);
2840
2841 return r;
2842}
2843
7e4249b9
LP		 2844static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
2845 DBusMessage *m = NULL, *reply = NULL;
2846 DBusError error;
2847 DBusMessageIter iter, sub, sub2;
2848 int r;
2849 const char
2850 *interface = "org.freedesktop.systemd1.Manager",
2851 *property = "Environment";
2852
2853 dbus_error_init(&error);
2854
2855 if (!(m = dbus_message_new_method_call(
2856 "org.freedesktop.systemd1",
2857 "/org/freedesktop/systemd1",
2858 "org.freedesktop.DBus.Properties",
2859 "Get"))) {
2860 log_error("Could not allocate message.");
2861 return -ENOMEM;
2862 }
2863
2864 if (!dbus_message_append_args(m,
2865 DBUS_TYPE_STRING, &interface,
2866 DBUS_TYPE_STRING, &property,
2867 DBUS_TYPE_INVALID)) {
2868 log_error("Could not append arguments to message.");
2869 r = -ENOMEM;
2870 goto finish;
2871 }
2872
2873 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2874 log_error("Failed to issue method call: %s", error.message);
2875 r = -EIO;
2876 goto finish;
2877 }
2878
2879 if (!dbus_message_iter_init(reply, &iter) ||
2880 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2881 log_error("Failed to parse reply.");
2882 r = -EIO;
2883 goto finish;
2884 }
2885
2886 dbus_message_iter_recurse(&iter, &sub);
2887
2888 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
2889 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
2890 log_error("Failed to parse reply.");
2891 r = -EIO;
2892 goto finish;
2893 }
2894
2895 dbus_message_iter_recurse(&sub, &sub2);
2896
2897 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
2898 const char *text;
2899
2900 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
2901 log_error("Failed to parse reply.");
2902 r = -EIO;
2903 goto finish;
2904 }
2905
2906 dbus_message_iter_get_basic(&sub2, &text);
2907 printf("%s\n", text);
2908
2909 dbus_message_iter_next(&sub2);
2910 }
2911
2912 r = 0;
2913
2914finish:
2915 if (m)
2916 dbus_message_unref(m);
2917
2918 if (reply)
2919 dbus_message_unref(reply);
2920
2921 dbus_error_free(&error);
2922
2923 return r;
2924}
2925
2926static int set_environment(DBusConnection *bus, char **args, unsigned n) {
2927 DBusMessage *m = NULL, *reply = NULL;
2928 DBusError error;
2929 int r;
2930 const char *method;
2931 DBusMessageIter iter, sub;
2932 unsigned i;
2933
2934 dbus_error_init(&error);
2935
2936 method = streq(args[0], "set-environment")
2937 ? "SetEnvironment"
2938 : "UnsetEnvironment";
2939
2940 if (!(m = dbus_message_new_method_call(
2941 "org.freedesktop.systemd1",
2942 "/org/freedesktop/systemd1",
2943 "org.freedesktop.systemd1.Manager",
2944 method))) {
2945
2946 log_error("Could not allocate message.");
2947 return -ENOMEM;
2948 }
2949
2950 dbus_message_iter_init_append(m, &iter);
2951
2952 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
2953 log_error("Could not append arguments to message.");
2954 r = -ENOMEM;
2955 goto finish;
2956 }
2957
2958 for (i = 1; i < n; i++)
2959 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
2960 log_error("Could not append arguments to message.");
2961 r = -ENOMEM;
2962 goto finish;
2963 }
2964
2965 if (!dbus_message_iter_close_container(&iter, &sub)) {
2966 log_error("Could not append arguments to message.");
2967 r = -ENOMEM;
2968 goto finish;
2969 }
2970
2971 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2972 log_error("Failed to issue method call: %s", error.message);
2973 r = -EIO;
2974 goto finish;
2975 }
2976
2977 r = 0;
2978
2979finish:
2980 if (m)
2981 dbus_message_unref(m);
2982
2983 if (reply)
2984 dbus_message_unref(reply);
2985
2986 dbus_error_free(&error);
2987
2988 return r;
2989}
2990
ee5762e3
LP		 2991typedef struct {
2992 char *name;
2993 char *path;
2994
2995 char **aliases;
2996 char **wanted_by;
2997} InstallInfo;
2998
2999static Hashmap *will_install = NULL, *have_installed = NULL;
3000static Set *remove_symlinks_to = NULL;
3001
3002static void install_info_free(InstallInfo *i) {
3003 assert(i);
3004
3005 free(i->name);
3006 free(i->path);
3007 strv_free(i->aliases);
3008 strv_free(i->wanted_by);
3009 free(i);
3010}
3011
3012static void install_info_hashmap_free(Hashmap *m) {
3013 InstallInfo *i;
3014
3015 while ((i = hashmap_steal_first(m)))
3016 install_info_free(i);
3017
3018 hashmap_free(m);
3019}
3020
3021static bool unit_name_valid(const char *name) {
3022
3023 /* This is a minimal version of unit_name_valid() from
3024 * unit-name.c */
3025
3026 if (!*name)
3027 return false;
3028
3029 if (ignore_file(name))
3030 return false;
3031
3032 return true;
3033}
3034
3035static int install_info_add(const char *name) {
3036 InstallInfo *i;
3037 int r;
3038
3039 assert(will_install);
3040
3041 if (!unit_name_valid(name))
3042 return -EINVAL;
3043
3044 if (hashmap_get(have_installed, name) ||
3045 hashmap_get(will_install, name))
3046 return 0;
3047
3048 if (!(i = new0(InstallInfo, 1))) {
3049 r = -ENOMEM;
3050 goto fail;
3051 }
3052
3053 if (!(i->name = strdup(name))) {
3054 r = -ENOMEM;
3055 goto fail;
3056 }
3057
3058 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3059 goto fail;
3060
3061 return 0;
3062
3063fail:
3064 if (i)
3065 install_info_free(i);
3066
3067 return r;
3068}
3069
3070static int config_parse_also(
3071 const char *filename,
3072 unsigned line,
3073 const char *section,
3074 const char *lvalue,
3075 const char *rvalue,
3076 void *data,
3077 void *userdata) {
3078
3079 char *w;
3080 size_t l;
3081 char *state;
3082
3083 assert(filename);
3084 assert(lvalue);
3085 assert(rvalue);
3086
3087 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3088 char *n;
3089 int r;
3090
3091 if (!(n = strndup(w, l)))
3092 return -ENOMEM;
3093
3094 r = install_info_add(n);
3095 free(n);
3096
3097 if (r < 0)
3098 return r;
3099 }
3100
3101 return 0;
3102}
3103
3104static int mark_symlink_for_removal(const char *p) {
3105 char *n;
3106 int r;
3107
3108 assert(p);
3109 assert(path_is_absolute(p));
3110
3111 if (!remove_symlinks_to)
3112 return 0;
3113
3114 if (!(n = strdup(p)))
3115 return -ENOMEM;
3116
3117 path_kill_slashes(n);
3118
3119 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3120 free(n);
3121 return r == -EEXIST ? 0 : r;
3122 }
3123
3124 return 0;
3125}
3126
3127static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3128 int r = 0;
3129 DIR *d;
3130 struct dirent *de;
3131
3132 assert(fd >= 0);
3133 assert(root);
3134 assert(deleted);
3135
3136 if (!(d = fdopendir(fd))) {
3137 close_nointr_nofail(fd);
3138 return -errno;
3139 }
3140
3141 rewinddir(d);
3142
3143 while ((de = readdir(d))) {
3144 bool is_dir = false, is_link = false;
3145
3146 if (ignore_file(de->d_name))
3147 continue;
3148
3149 if (de->d_type == DT_LNK)
3150 is_link = true;
3151 else if (de->d_type == DT_DIR)
3152 is_dir = true;
3153 else if (de->d_type == DT_UNKNOWN) {
3154 struct stat st;
3155
3156 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3157 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3158
3159 if (r == 0)
3160 r = -errno;
3161 continue;
3162 }
3163
3164 is_link = S_ISLNK(st.st_mode);
3165 is_dir = S_ISDIR(st.st_mode);
3166 } else
3167 continue;
3168
3169 if (is_dir) {
3170 int nfd, q;
3171 char *p;
3172
3173 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3174 log_error("Failed to open %s/%s: %m", root, de->d_name);
3175
3176 if (r == 0)
3177 r = -errno;
3178 continue;
3179 }
3180
3181 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3182 log_error("Failed to allocate directory string.");
3183 close_nointr_nofail(nfd);
3184 r = -ENOMEM;
3185 break;
3186 }
3187
3188 /* This will close nfd, regardless whether it succeeds or not */
3189 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3190 free(p);
3191
3192 if (r == 0)
e364ad06 3193 r = q;
ee5762e3
LP		 3194
3195 } else if (is_link) {
3196 char *p, *dest, *c;
3197 int q;
3198
3199 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3200 log_error("Failed to allocate symlink string.");
3201 r = -ENOMEM;
3202 break;
3203 }
3204
3205 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3206 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3207 free(p);
3208
3209 if (r == 0)
3210 r = q;
3211 continue;
3212 }
3213
3214 if ((c = canonicalize_file_name(dest))) {
3215 /* This might fail if the destination
3216 * is already removed */
3217
3218 free(dest);
3219 dest = c;
3220 }
3221
3222 path_kill_slashes(dest);
3223 if (set_get(remove_symlinks_to, dest)) {
3224
3225 if (!arg_quiet)
3226 log_info("rm '%s'", p);
3227
3228 if (unlink(p) < 0) {
3229 log_error("Cannot unlink symlink %s: %m", p);
3230
3231 if (r == 0)
3232 r = -errno;
3233 } else {
3234 rmdir_parents(p, config_path);
3235 path_kill_slashes(p);
3236
3237 if (!set_get(remove_symlinks_to, p)) {
3238
3239 if ((r = mark_symlink_for_removal(p)) < 0) {
3240 if (r == 0)
3241 r = q;
3242 } else
3243 *deleted = true;
3244 }
3245 }
3246 }
3247
3248 free(p);
3249 free(dest);
3250 }
3251 }
3252
3253 closedir(d);
3254
3255 return r;
3256}
3257
3258static int remove_marked_symlinks(const char *config_path) {
3259 int fd, r = 0;
3260 bool deleted;
3261
3262 assert(config_path);
3263
3264 if (set_size(remove_symlinks_to) <= 0)
3265 return 0;
3266
3267 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3268 return -errno;
3269
3270 do {
3271 int q, cfd;
3272 deleted = false;
3273
3274 if ((cfd = dup(fd)) < 0) {
3275 r = -errno;
3276 break;
3277 }
3278
3279 /* This takes possession of cfd and closes it */
3280 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3281 if (r == 0)
3282 r = q;
3283 }
3284 } while (deleted);
3285
3286 close_nointr_nofail(fd);
3287
3288 return r;
3289}
3290
3291static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3292 int r;
3293
3294 assert(old_path);
3295 assert(new_path);
3296 assert(verb);
3297
3298 if (streq(verb, "enable")) {
3299 char *dest;
3300
3301 mkdir_parents(new_path, 0755);
3302
3303 if (symlink(old_path, new_path) >= 0) {
3304
3305 if (!arg_quiet)
3306 log_info("ln -s '%s' '%s'", old_path, new_path);
3307
3308 return 0;
3309 }
3310
3311 if (errno != EEXIST) {
3312 log_error("Cannot link %s to %s: %m", old_path, new_path);
3313 return -errno;
3314 }
3315
3316 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3317
3318 if (errno == EINVAL) {
3319 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3320 return -EEXIST;
3321 }
3322
3323 log_error("readlink() failed: %s", strerror(-r));
3324 return r;
3325 }
3326
3327 if (streq(dest, old_path)) {
3328 free(dest);
3329 return 0;
3330 }
3331
3332 if (!arg_force) {
3333 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3334 free(dest);
3335 return -EEXIST;
3336 }
3337
3338 free(dest);
3339 unlink(new_path);
3340
3341 if (!arg_quiet)
3342 log_info("ln -s '%s' '%s'", old_path, new_path);
3343
3344 if (symlink(old_path, new_path) >= 0)
3345 return 0;
3346
3347 log_error("Cannot link %s to %s: %m", old_path, new_path);
3348 return -errno;
3349
3350 } else if (streq(verb, "disable")) {
3351 char *dest;
3352
3353 if ((r = mark_symlink_for_removal(old_path)) < 0)
3354 return r;
3355
3356 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3357 if (errno == ENOENT)
3358 return 0;
3359
3360 if (errno == EINVAL) {
3361 log_warning("File %s not a symlink, ignoring.", old_path);
3362 return 0;
3363 }
3364
3365 log_error("readlink() failed: %s", strerror(-r));
3366 return r;
3367 }
3368
3369 if (!streq(dest, old_path)) {
3370 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3371 free(dest);
3372 return 0;
3373 }
3374
3375 free(dest);
3376
3377 if ((r = mark_symlink_for_removal(new_path)) < 0)
3378 return r;
3379
3380 if (!arg_quiet)
3381 log_info("rm '%s'", new_path);
3382
3383 if (unlink(new_path) >= 0)
3384 return 0;
3385
3386 log_error("Cannot unlink %s: %m", new_path);
3387 return -errno;
3388
3389 } else if (streq(verb, "is-enabled")) {
3390 char *dest;
3391
3392 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3393
3394 if (errno == ENOENT || errno == EINVAL)
3395 return 0;
3396
3397 log_error("readlink() failed: %s", strerror(-r));
3398 return r;
3399 }
3400
3401 if (streq(dest, old_path)) {
3402 free(dest);
3403 return 1;
3404 }
3405
3406 return 0;
3407 }
3408
3409 assert_not_reached("Unknown action.");
3410}
3411
3412static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3413 char **s;
3414 char *alias_path = NULL;
3415 int r;
3416
3417 assert(verb);
3418 assert(i);
3419 assert(config_path);
3420
3421 STRV_FOREACH(s, i->aliases) {
3422
3423 if (!unit_name_valid(*s)) {
3424 log_error("Invalid name %s.", *s);
3425 r = -EINVAL;
3426 goto finish;
3427 }
3428
3429 free(alias_path);
3430 if (!(alias_path = path_make_absolute(*s, config_path))) {
3431 log_error("Out of memory");
3432 r = -ENOMEM;
3433 goto finish;
3434 }
3435
3436 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3437 goto finish;
3438
3439 if (streq(verb, "disable"))
3440 rmdir_parents(alias_path, config_path);
3441 }
3442
3443 r = 0;
3444
3445finish:
3446 free(alias_path);
3447
3448 return r;
3449}
3450
3451static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3452 char **s;
3453 char *alias_path = NULL;
3454 int r;
3455
3456 assert(verb);
3457 assert(i);
3458 assert(config_path);
3459
3460 STRV_FOREACH(s, i->wanted_by) {
3461 if (!unit_name_valid(*s)) {
3462 log_error("Invalid name %s.", *s);
3463 r = -EINVAL;
3464 goto finish;
3465 }
3466
3467 free(alias_path);
3468 alias_path = NULL;
3469
3470 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3471 log_error("Out of memory");
3472 r = -ENOMEM;
3473 goto finish;
3474 }
3475
3476 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3477 goto finish;
3478
3479 if (streq(verb, "disable"))
3480 rmdir_parents(alias_path, config_path);
3481 }
3482
3483 r = 0;
3484
3485finish:
3486 free(alias_path);
3487
3488 return r;
3489}
3490
3491static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3492
3493 const ConfigItem items[] = {
3494 { "Alias", config_parse_strv, &i->aliases, "Install" },
3495 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3496 { "Also", config_parse_also, NULL, "Install" },
3497
3498 { NULL, NULL, NULL, NULL }
3499 };
3500
3501 char **p;
3502 char *filename = NULL;
3503 FILE *f = NULL;
3504 int r;
3505
3506 assert(paths);
3507 assert(i);
3508
3509 STRV_FOREACH(p, paths->unit_path) {
3510 int fd;
3511
3512 if (!(filename = path_make_absolute(i->name, *p))) {
3513 log_error("Out of memory");
3514 return -ENOMEM;
3515 }
3516
3517 /* Ensure that we don't follow symlinks */
3518 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3519 if ((f = fdopen(fd, "re")))
3520 break;
3521
3522 if (errno == ELOOP) {
3523 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3524 free(filename);
3525 return -errno;
3526 }
3527
3528 if (errno != ENOENT) {
3529 log_error("Failed to open %s: %m", filename);
3530 free(filename);
3531 return -errno;
3532 }
3533
3534 free(filename);
3535 filename = NULL;
3536 }
3537
3538 if (!f) {
3539 log_error("Couldn't find %s.", i->name);
3540 return -ENOENT;
3541 }
3542
3543 i->path = filename;
3544
3545 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3546 fclose(f);
3547 return r;
3548 }
3549
3550 fclose(f);
3551
3552 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3553 return r;
3554
3555 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3556 return r;
3557
3558 if ((r = mark_symlink_for_removal(filename)) < 0)
3559 return r;
3560
3561 if ((r = remove_marked_symlinks(config_path)) < 0)
3562 return r;
3563
3564 return 0;
3565}
3566
3567static char *get_config_path(void) {
3568
3569 if (arg_session && arg_global)
3570 return strdup(SESSION_CONFIG_UNIT_PATH);
3571
3572 if (arg_session) {
3573 char *p;
3574
3575 if (session_config_home(&p) < 0)
3576 return NULL;
3577
3578 return p;
3579 }
3580
3581 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3582}
3583
3584static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3585 DBusError error;
3586 int r;
3587 LookupPaths paths;
3588 char *config_path = NULL;
3589 unsigned j;
3590 InstallInfo *i;
3591 const char *verb = args[0];
3592
3593 dbus_error_init(&error);
3594
3595 zero(paths);
3596 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3597 log_error("Failed to determine lookup paths: %s", strerror(-r));
3598 goto finish;
3599 }
3600
3601 if (!(config_path = get_config_path())) {
3602 log_error("Failed to determine config path");
3603 r = -ENOMEM;
3604 goto finish;
3605 }
3606
3607 will_install = hashmap_new(string_hash_func, string_compare_func);
3608 have_installed = hashmap_new(string_hash_func, string_compare_func);
3609
3610 if (!will_install || !have_installed) {
3611 log_error("Failed to allocate unit sets.");
3612 r = -ENOMEM;
3613 goto finish;
3614 }
3615
3616 if (!arg_defaults && streq(verb, "disable"))
3617 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3618 log_error("Failed to allocate symlink sets.");
3619 r = -ENOMEM;
3620 goto finish;
3621 }
3622
3623 for (j = 1; j < n; j++)
3624 if ((r = install_info_add(args[j])) < 0)
3625 goto finish;
3626
3627 while ((i = hashmap_first(will_install))) {
3628 int q;
3629
3630 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3631
3632 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3633
3634 if (q < 0) {
3635 if (r == 0)
3636 r = q;
3637 goto finish;
3638 }
3639
3640 /* In test mode and found something */
3641 r = 1;
3642 break;
3643 }
3644 }
3645
3646 if (streq(verb, "is-enabled"))
3647 r = r > 0 ? 0 : -ENOENT;
3648 else if (bus &&
3649 /* Don't try to reload anything if the user asked us to not do this */
3650 !arg_no_reload &&
3651 /* Don't try to reload anything when updating a unit globally */
3652 !arg_global &&
3653 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3654 (arg_session || sd_booted() > 0) &&
3655 /* Don't try to reload anything if we are running in a chroot environment */
3656 (arg_session || running_in_chroot() <= 0) ) {
3657 int q;
3658
3659 if ((q = daemon_reload(bus, args, n)) < 0)
3660 r = q;
3661 }
3662
3663finish:
3664 install_info_hashmap_free(will_install);
3665 install_info_hashmap_free(have_installed);
3666
3667 set_free_free(remove_symlinks_to);
3668
3669 lookup_paths_free(&paths);
3670
3671 free(config_path);
3672
3673 return r;
3674}
3675
e4b61340 3676static int systemctl_help(void) {
7e4249b9 3677
2e33c433 3678 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 3679 "Send control commands to or query the systemd manager.\n\n"
48220598
LP		 3680 " -h --help Show this help\n"
3681 " -t --type=TYPE List only units of a particular type\n"
393a2f9b 3682 " -p --property=NAME Show only properties by this name\n"
48220598 3683 " -a --all Show all units/properties, including dead/empty ones\n"
ee5762e3
LP		 3684 " --full Don't ellipsize unit names on output\n"
3685 " --fail When queueing a new job, fail if conflicting jobs are\n"
6f28c033 3686 " pending\n"
ee5762e3
LP		 3687 " -q --quiet Suppress output\n"
3688 " --no-block Do not wait until operation finished\n"
48220598
LP		 3689 " --system Connect to system bus\n"
3690 " --session Connect to session bus\n"
4445a875 3691 " --order When generating graph for dot, show only order\n"
ee5762e3
LP		 3692 " --require When generating graph for dot, show only requirement\n"
3693 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3694 " --global Enable/disable unit files globally\n"
3695 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3696 " configuration\n"
3697 " --force When enabling unit files, override existing symlinks\n"
3698 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 3699 "Commands:\n"
3700 " list-units List units\n"
ee5762e3
LP		 3701 " start [NAME...] Start (activate) one or more units\n"
3702 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 3703 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 3704 " restart [NAME...] Start or restart one or more units\n"
3705 " try-restart [NAME...] Restart one or more units if active\n"
3706 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3707 " otherwise start or restart\n"
3708 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3709 " otherwise restart if active\n"
7e4249b9 3710 " isolate [NAME] Start one unit and stop all others\n"
ee5762e3 3711 " is-active [NAME...] Check whether units are active\n"
75676b72 3712 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 3713 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3
LP		 3714 " units/jobs or the manager\n"
3715 " reset-maintenance [NAME...] Reset maintenance state for all, one,\n"
5632e374 3716 " or more units\n"
ee5762e3
LP		 3717 " enable [NAME...] Enable one or more unit files\n"
3718 " disable [NAME...] Disable one or more unit files\n"
3719 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 3720 " load [NAME...] Load one or more units\n"
3721 " list-jobs List jobs\n"
ee5762e3 3722 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 3723 " monitor Monitor unit/job changes\n"
3724 " dump Dump server status\n"
4445a875 3725 " dot Dump dependency graph for dot(1)\n"
7e4249b9 3726 " snapshot [NAME] Create a snapshot\n"
6759e7a7 3727 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 3728 " daemon-reload Reload systemd manager configuration\n"
3729 " daemon-reexec Reexecute systemd manager\n"
3730 " daemon-exit Ask the systemd manager to quit\n"
7e4249b9
LP		 3731 " show-environment Dump environment\n"
3732 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5
LP		 3733 " unset-environment [NAME...] Unset one or more environment variables\n"
3734 " halt Shut down and halt the system\n"
2e33c433 3735 " poweroff Shut down and power-off the system\n"
514f4ef5 3736 " reboot Shut down and reboot the system\n"
6f28c033
LP		 3737 " rescue Enter system rescue mode\n"
3738 " emergency Enter system emergency mode\n"
3739 " default Enter system default mode\n",
5b6319dc 3740 program_invocation_short_name);
7e4249b9
LP		 3741
3742 return 0;
3743}
3744
e4b61340
LP		 3745static int halt_help(void) {
3746
2e33c433 3747 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3748 "%s the system.\n\n"
3749 " --help Show this help\n"
3750 " --halt Halt the machine\n"
3751 " -p --poweroff Switch off the machine\n"
3752 " --reboot Reboot the machine\n"
2e33c433
LP		 3753 " -f --force Force immediate halt/power-off/reboot\n"
3754 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 3755 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 3756 " -n --no-sync Don't sync before halt/power-off/reboot\n"
3757 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 3758 program_invocation_short_name,
3759 arg_action == ACTION_REBOOT ? "Reboot" :
3760 arg_action == ACTION_POWEROFF ? "Power off" :
3761 "Halt");
3762
3763 return 0;
3764}
3765
3766static int shutdown_help(void) {
3767
2e33c433 3768 printf("%s [OPTIONS...] [now] [WALL...]\n\n"
e4b61340
LP		 3769 "Shut down the system.\n\n"
3770 " --help Show this help\n"
3771 " -H --halt Halt the machine\n"
3772 " -P --poweroff Power-off the machine\n"
3773 " -r --reboot Reboot the machine\n"
3774 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433
LP		 3775 " -k Don't halt/power-off/reboot, just send warnings\n"
3776 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 3777 program_invocation_short_name);
3778
3779 return 0;
3780}
3781
3782static int telinit_help(void) {
3783
2e33c433 3784 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 3785 "Send control commands to the init daemon.\n\n"
3786 " --help Show this help\n"
2e33c433 3787 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 3788 "Commands:\n"
3789 " 0 Power-off the machine\n"
3790 " 6 Reboot the machine\n"
514f4ef5
LP		 3791 " 2, 3, 4, 5 Start runlevelX.target unit\n"
3792 " 1, s, S Enter rescue mode\n"
3793 " q, Q Reload init daemon configuration\n"
3794 " u, U Reexecute init daemon\n",
e4b61340
LP		 3795 program_invocation_short_name);
3796
3797 return 0;
3798}
3799
3800static int runlevel_help(void) {
3801
2e33c433 3802 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3803 "Prints the previous and current runlevel of the init system.\n\n"
3804 " --help Show this help\n",
3805 program_invocation_short_name);
3806
3807 return 0;
3808}
3809
3810static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 3811
3812 enum {
90d473a1 3813 ARG_FAIL = 0x100,
7e4249b9
LP		 3814 ARG_SESSION,
3815 ARG_SYSTEM,
ee5762e3 3816 ARG_GLOBAL,
6e905d93 3817 ARG_NO_BLOCK,
4445a875
LP		 3818 ARG_NO_WALL,
3819 ARG_ORDER,
8fe914ec 3820 ARG_REQUIRE,
ee5762e3
LP		 3821 ARG_FULL,
3822 ARG_FORCE,
3823 ARG_NO_RELOAD,
3824 ARG_DEFAULTS
7e4249b9
LP		 3825 };
3826
3827 static const struct option options[] = {
ee5762e3
LP		 3828 { "help", no_argument, NULL, 'h' },
3829 { "type", required_argument, NULL, 't' },
3830 { "property", required_argument, NULL, 'p' },
3831 { "all", no_argument, NULL, 'a' },
3832 { "full", no_argument, NULL, ARG_FULL },
3833 { "fail", no_argument, NULL, ARG_FAIL },
3834 { "session", no_argument, NULL, ARG_SESSION },
3835 { "system", no_argument, NULL, ARG_SYSTEM },
3836 { "global", no_argument, NULL, ARG_GLOBAL },
3837 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
3838 { "no-wall", no_argument, NULL, ARG_NO_WALL },
3839 { "quiet", no_argument, NULL, 'q' },
3840 { "order", no_argument, NULL, ARG_ORDER },
3841 { "require", no_argument, NULL, ARG_REQUIRE },
3842 { "force", no_argument, NULL, ARG_FORCE },
3843 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
3844 { "defaults", no_argument, NULL, ARG_DEFAULTS },
3845 { NULL, 0, NULL, 0 }
7e4249b9
LP		 3846 };
3847
3848 int c;
3849
e4b61340 3850 assert(argc >= 0);
7e4249b9
LP		 3851 assert(argv);
3852
48220598 3853 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
7e4249b9
LP		 3854
3855 switch (c) {
3856
3857 case 'h':
e4b61340 3858 systemctl_help();
7e4249b9
LP		 3859 return 0;
3860
3861 case 't':
3862 arg_type = optarg;
3863 break;
3864
ea4a240d
LP		 3865 case 'p': {
3866 char **l;
3867
3868 if (!(l = strv_append(arg_property, optarg)))
3869 return -ENOMEM;
3870
3871 strv_free(arg_property);
3872 arg_property = l;
48220598
LP		 3873
3874 /* If the user asked for a particular
3875 * property, show it to him, even if it is
3876 * empty. */
3877 arg_all = true;
3878 break;
ea4a240d 3879 }
48220598 3880
7e4249b9
LP		 3881 case 'a':
3882 arg_all = true;
3883 break;
3884
90d473a1
LP		 3885 case ARG_FAIL:
3886 arg_fail = true;
7e4249b9
LP		 3887 break;
3888
3889 case ARG_SESSION:
3890 arg_session = true;
3891 break;
3892
3893 case ARG_SYSTEM:
3894 arg_session = false;
3895 break;
3896
6e905d93
LP		 3897 case ARG_NO_BLOCK:
3898 arg_no_block = true;
7e4249b9
LP		 3899 break;
3900
514f4ef5
LP		 3901 case ARG_NO_WALL:
3902 arg_no_wall = true;
3903 break;
3904
4445a875
LP		 3905 case ARG_ORDER:
3906 arg_dot = DOT_ORDER;
3907 break;
3908
3909 case ARG_REQUIRE:
3910 arg_dot = DOT_REQUIRE;
3911 break;
3912
8fe914ec
LP		 3913 case ARG_FULL:
3914 arg_full = true;
3915 break;
3916
0183528f
LP		 3917 case 'q':
3918 arg_quiet = true;
3919 break;
3920
ee5762e3
LP		 3921 case ARG_FORCE:
3922 arg_force = true;
3923 break;
3924
3925 case ARG_NO_RELOAD:
3926 arg_no_reload = true;
3927 break;
3928
3929 case ARG_GLOBAL:
3930 arg_global = true;
3931 arg_session = true;
3932 break;
3933
3934 case ARG_DEFAULTS:
3935 arg_defaults = true;
3936 break;
3937
7e4249b9
LP		 3938 case '?':
3939 return -EINVAL;
3940
3941 default:
3942 log_error("Unknown option code %c", c);
3943 return -EINVAL;
3944 }
3945 }
3946
3947 return 1;
3948}
3949
e4b61340
LP		 3950static int halt_parse_argv(int argc, char *argv[]) {
3951
3952 enum {
3953 ARG_HELP = 0x100,
3954 ARG_HALT,
514f4ef5
LP		 3955 ARG_REBOOT,
3956 ARG_NO_WALL
e4b61340
LP		 3957 };
3958
3959 static const struct option options[] = {
3960 { "help", no_argument, NULL, ARG_HELP },
3961 { "halt", no_argument, NULL, ARG_HALT },
3962 { "poweroff", no_argument, NULL, 'p' },
3963 { "reboot", no_argument, NULL, ARG_REBOOT },
3964 { "force", no_argument, NULL, 'f' },
3965 { "wtmp-only", no_argument, NULL, 'w' },
3966 { "no-wtmp", no_argument, NULL, 'd' },
3967 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 3968 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 3969 { NULL, 0, NULL, 0 }
3970 };
3971
3972 int c, runlevel;
3973
3974 assert(argc >= 0);
3975 assert(argv);
3976
3977 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
3978 if (runlevel == '0' || runlevel == '6')
3979 arg_immediate = true;
3980
3981 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
3982 switch (c) {
3983
3984 case ARG_HELP:
3985 halt_help();
3986 return 0;
3987
3988 case ARG_HALT:
3989 arg_action = ACTION_HALT;
3990 break;
3991
3992 case 'p':
a042efad
MS		 3993 if (arg_action != ACTION_REBOOT)
3994 arg_action = ACTION_POWEROFF;
e4b61340
LP		 3995 break;
3996
3997 case ARG_REBOOT:
3998 arg_action = ACTION_REBOOT;
3999 break;
4000
4001 case 'f':
4002 arg_immediate = true;
4003 break;
4004
4005 case 'w':
4006 arg_dry = true;
4007 break;
4008
4009 case 'd':
4010 arg_no_wtmp = true;
4011 break;
4012
4013 case 'n':
4014 arg_no_sync = true;
4015 break;
4016
514f4ef5
LP		 4017 case ARG_NO_WALL:
4018 arg_no_wall = true;
4019 break;
4020
e4b61340
LP		 4021 case 'i':
4022 case 'h':
4023 /* Compatibility nops */
4024 break;
4025
4026 case '?':
4027 return -EINVAL;
4028
4029 default:
4030 log_error("Unknown option code %c", c);
4031 return -EINVAL;
4032 }
4033 }
4034
4035 if (optind < argc) {
4036 log_error("Too many arguments.");
4037 return -EINVAL;
4038 }
4039
4040 return 1;
4041}
4042
4043static int shutdown_parse_argv(int argc, char *argv[]) {
4044
4045 enum {
4046 ARG_HELP = 0x100,
514f4ef5 4047 ARG_NO_WALL
e4b61340
LP		 4048 };
4049
4050 static const struct option options[] = {
4051 { "help", no_argument, NULL, ARG_HELP },
4052 { "halt", no_argument, NULL, 'H' },
4053 { "poweroff", no_argument, NULL, 'P' },
4054 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4055 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4056 { NULL, 0, NULL, 0 }
4057 };
4058
4059 int c;
4060
4061 assert(argc >= 0);
4062 assert(argv);
4063
4064 while ((c = getopt_long(argc, argv, "HPrhkt:a", options, NULL)) >= 0) {
4065 switch (c) {
4066
4067 case ARG_HELP:
4068 shutdown_help();
4069 return 0;
4070
4071 case 'H':
4072 arg_action = ACTION_HALT;
4073 break;
4074
4075 case 'P':
4076 arg_action = ACTION_POWEROFF;
4077 break;
4078
4079 case 'r':
4080 arg_action = ACTION_REBOOT;
4081 break;
4082
4083 case 'h':
4084 if (arg_action != ACTION_HALT)
4085 arg_action = ACTION_POWEROFF;
4086 break;
4087
4088 case 'k':
4089 arg_dry = true;
4090 break;
4091
514f4ef5
LP		 4092 case ARG_NO_WALL:
4093 arg_no_wall = true;
4094 break;
4095
e4b61340
LP		 4096 case 't':
4097 case 'a':
4098 /* Compatibility nops */
4099 break;
4100
4101 case '?':
4102 return -EINVAL;
4103
4104 default:
4105 log_error("Unknown option code %c", c);
4106 return -EINVAL;
4107 }
4108 }
4109
4545812f
LP		 4110 if (argc > optind && !streq(argv[optind], "now"))
4111 log_warning("First argument '%s' isn't 'now'. Ignoring.", argv[optind]);
442b9094 4112
e4b61340
LP		 4113 /* We ignore the time argument */
4114 if (argc > optind + 1)
4115 arg_wall = argv + optind + 1;
4116
4117 optind = argc;
4118
4119 return 1;
e4b61340
LP		 4120}
4121
4122static int telinit_parse_argv(int argc, char *argv[]) {
4123
4124 enum {
4125 ARG_HELP = 0x100,
514f4ef5 4126 ARG_NO_WALL
e4b61340
LP		 4127 };
4128
4129 static const struct option options[] = {
4130 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4131 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4132 { NULL, 0, NULL, 0 }
4133 };
4134
4135 static const struct {
4136 char from;
4137 enum action to;
4138 } table[] = {
4139 { '0', ACTION_POWEROFF },
4140 { '6', ACTION_REBOOT },
ef2f1067 4141 { '1', ACTION_RESCUE },
e4b61340
LP		 4142 { '2', ACTION_RUNLEVEL2 },
4143 { '3', ACTION_RUNLEVEL3 },
4144 { '4', ACTION_RUNLEVEL4 },
4145 { '5', ACTION_RUNLEVEL5 },
4146 { 's', ACTION_RESCUE },
4147 { 'S', ACTION_RESCUE },
4148 { 'q', ACTION_RELOAD },
4149 { 'Q', ACTION_RELOAD },
4150 { 'u', ACTION_REEXEC },
4151 { 'U', ACTION_REEXEC }
4152 };
4153
4154 unsigned i;
4155 int c;
4156
4157 assert(argc >= 0);
4158 assert(argv);
4159
4160 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4161 switch (c) {
4162
4163 case ARG_HELP:
4164 telinit_help();
4165 return 0;
4166
514f4ef5
LP		 4167 case ARG_NO_WALL:
4168 arg_no_wall = true;
4169 break;
4170
e4b61340
LP		 4171 case '?':
4172 return -EINVAL;
4173
4174 default:
4175 log_error("Unknown option code %c", c);
4176 return -EINVAL;
4177 }
4178 }
4179
4180 if (optind >= argc) {
2f02ce40 4181 telinit_help();
e4b61340
LP		 4182 return -EINVAL;
4183 }
4184
4185 if (optind + 1 < argc) {
4186 log_error("Too many arguments.");
4187 return -EINVAL;
4188 }
4189
4190 if (strlen(argv[optind]) != 1) {
4191 log_error("Expected single character argument.");
4192 return -EINVAL;
4193 }
4194
4195 for (i = 0; i < ELEMENTSOF(table); i++)
4196 if (table[i].from == argv[optind][0])
4197 break;
4198
4199 if (i >= ELEMENTSOF(table)) {
4200 log_error("Unknown command %s.", argv[optind]);
4201 return -EINVAL;
4202 }
4203
4204 arg_action = table[i].to;
4205
4206 optind ++;
4207
4208 return 1;
4209}
4210
4211static int runlevel_parse_argv(int argc, char *argv[]) {
4212
4213 enum {
4214 ARG_HELP = 0x100,
4215 };
4216
4217 static const struct option options[] = {
4218 { "help", no_argument, NULL, ARG_HELP },
4219 { NULL, 0, NULL, 0 }
4220 };
4221
4222 int c;
4223
4224 assert(argc >= 0);
4225 assert(argv);
4226
4227 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4228 switch (c) {
4229
4230 case ARG_HELP:
4231 runlevel_help();
4232 return 0;
4233
4234 case '?':
4235 return -EINVAL;
4236
4237 default:
4238 log_error("Unknown option code %c", c);
4239 return -EINVAL;
4240 }
4241 }
4242
4243 if (optind < argc) {
4244 log_error("Too many arguments.");
4245 return -EINVAL;
4246 }
4247
4248 return 1;
4249}
4250
4251static int parse_argv(int argc, char *argv[]) {
4252 assert(argc >= 0);
4253 assert(argv);
4254
4255 if (program_invocation_short_name) {
4256
4257 if (strstr(program_invocation_short_name, "halt")) {
4258 arg_action = ACTION_HALT;
4259 return halt_parse_argv(argc, argv);
4260 } else if (strstr(program_invocation_short_name, "poweroff")) {
4261 arg_action = ACTION_POWEROFF;
4262 return halt_parse_argv(argc, argv);
4263 } else if (strstr(program_invocation_short_name, "reboot")) {
4264 arg_action = ACTION_REBOOT;
4265 return halt_parse_argv(argc, argv);
4266 } else if (strstr(program_invocation_short_name, "shutdown")) {
4267 arg_action = ACTION_POWEROFF;
4268 return shutdown_parse_argv(argc, argv);
4269 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4270
4271 if (sd_booted() > 0) {
4272 arg_action = ACTION_INVALID;
4273 return telinit_parse_argv(argc, argv);
4274 } else {
4275 /* Hmm, so some other init system is
4276 * running, we need to forward this
4277 * request to it. For now we simply
4278 * guess that it is Upstart. */
4279
4280 execv("/lib/upstart/telinit", argv);
4281
4282 log_error("Couldn't find an alternative telinit implementation to spawn.");
4283 return -EIO;
4284 }
4285
e4b61340
LP		 4286 } else if (strstr(program_invocation_short_name, "runlevel")) {
4287 arg_action = ACTION_RUNLEVEL;
4288 return runlevel_parse_argv(argc, argv);
4289 }
4290 }
4291
4292 arg_action = ACTION_SYSTEMCTL;
4293 return systemctl_parse_argv(argc, argv);
4294}
4295
d55ae9e6 4296static int action_to_runlevel(void) {
eb22ac37
LP		 4297
4298 static const char table[_ACTION_MAX] = {
4299 [ACTION_HALT] = '0',
4300 [ACTION_POWEROFF] = '0',
4301 [ACTION_REBOOT] = '6',
4302 [ACTION_RUNLEVEL2] = '2',
4303 [ACTION_RUNLEVEL3] = '3',
4304 [ACTION_RUNLEVEL4] = '4',
4305 [ACTION_RUNLEVEL5] = '5',
4306 [ACTION_RESCUE] = '1'
4307 };
4308
d55ae9e6
LP		 4309 assert(arg_action < _ACTION_MAX);
4310
4311 return table[arg_action];
4312}
4313
f1c5860b 4314static int talk_upstart(void) {
d55ae9e6
LP		 4315 DBusMessage *m = NULL, *reply = NULL;
4316 DBusError error;
4317 int previous, rl, r;
4318 char
4319 env1_buf[] = "RUNLEVEL=X",
4320 env2_buf[] = "PREVLEVEL=X";
4321 char *env1 = env1_buf, *env2 = env2_buf;
4322 const char *emit = "runlevel";
4323 dbus_bool_t b_false = FALSE;
4324 DBusMessageIter iter, sub;
f1c5860b 4325 DBusConnection *bus;
d55ae9e6
LP		 4326
4327 dbus_error_init(&error);
4328
4329 if (!(rl = action_to_runlevel()))
4330 return 0;
4331
4332 if (utmp_get_runlevel(&previous, NULL) < 0)
4333 previous = 'N';
4334
b574246b 4335 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4336 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4337 r = 0;
4338 goto finish;
4339 }
4340
4341 log_error("Failed to connect to Upstart bus: %s", error.message);
4342 r = -EIO;
4343 goto finish;
4344 }
4345
4346 if ((r = bus_check_peercred(bus)) < 0) {
4347 log_error("Failed to verify owner of bus.");
4348 goto finish;
4349 }
4350
d55ae9e6
LP		 4351 if (!(m = dbus_message_new_method_call(
4352 "com.ubuntu.Upstart",
4353 "/com/ubuntu/Upstart",
4354 "com.ubuntu.Upstart0_6",
4355 "EmitEvent"))) {
4356
4357 log_error("Could not allocate message.");
f1c5860b
LP		 4358 r = -ENOMEM;
4359 goto finish;
d55ae9e6
LP		 4360 }
4361
4362 dbus_message_iter_init_append(m, &iter);
4363
4364 env1_buf[sizeof(env1_buf)-2] = rl;
4365 env2_buf[sizeof(env2_buf)-2] = previous;
4366
4367 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4368 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4369 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4370 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4371 !dbus_message_iter_close_container(&iter, &sub) ||
4372 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4373 log_error("Could not append arguments to message.");
4374 r = -ENOMEM;
4375 goto finish;
4376 }
4377
4378 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4379
4380 if (error_is_no_service(&error)) {
4381 r = 0;
4382 goto finish;
4383 }
4384
4385 log_error("Failed to issue method call: %s", error.message);
4386 r = -EIO;
4387 goto finish;
4388 }
4389
4390 r = 1;
4391
4392finish:
4393 if (m)
4394 dbus_message_unref(m);
4395
4396 if (reply)
4397 dbus_message_unref(reply);
4398
b574246b
LP		 4399 if (bus) {
4400 dbus_connection_close(bus);
f1c5860b 4401 dbus_connection_unref(bus);
b574246b 4402 }
f1c5860b 4403
d55ae9e6
LP		 4404 dbus_error_free(&error);
4405
4406 return r;
4407}
4408
4409static int talk_initctl(void) {
eb22ac37
LP		 4410 struct init_request request;
4411 int r, fd;
d55ae9e6 4412 char rl;
eb22ac37 4413
d55ae9e6 4414 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4415 return 0;
4416
4417 zero(request);
4418 request.magic = INIT_MAGIC;
4419 request.sleeptime = 0;
4420 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4421 request.runlevel = rl;
4422
4423 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4424
4425 if (errno == ENOENT)
4426 return 0;
eb22ac37 4427
d55ae9e6 4428 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4429 return -errno;
d55ae9e6 4430 }
eb22ac37 4431
d55ae9e6 4432 errno = 0;
eb22ac37
LP		 4433 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4434 close_nointr_nofail(fd);
4435
d55ae9e6
LP		 4436 if (r < 0) {
4437 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 4438 return errno ? -errno : -EIO;
d55ae9e6 4439 }
eb22ac37
LP		 4440
4441 return 1;
e4b61340
LP		 4442}
4443
ee5762e3 4444static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 4445
7e4249b9
LP		 4446 static const struct {
4447 const char* verb;
4448 const enum {
4449 MORE,
4450 LESS,
4451 EQUAL
4452 } argc_cmp;
4453 const int argc;
4454 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4455 } verbs[] = {
ee5762e3
LP		 4456 { "list-units", LESS, 1, list_units },
4457 { "list-jobs", EQUAL, 1, list_jobs },
4458 { "clear-jobs", EQUAL, 1, daemon_reload },
4459 { "load", MORE, 2, load_unit },
4460 { "cancel", MORE, 2, cancel_job },
4461 { "start", MORE, 2, start_unit },
4462 { "stop", MORE, 2, start_unit },
4463 { "reload", MORE, 2, start_unit },
4464 { "restart", MORE, 2, start_unit },
4465 { "try-restart", MORE, 2, start_unit },
4466 { "reload-or-restart", MORE, 2, start_unit },
4467 { "reload-or-try-restart", MORE, 2, start_unit },
4468 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4469 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4470 { "isolate", EQUAL, 2, start_unit },
4471 { "is-active", MORE, 2, check_unit },
4472 { "check", MORE, 2, check_unit },
4473 { "show", MORE, 1, show },
4474 { "status", MORE, 2, show },
4475 { "monitor", EQUAL, 1, monitor },
4476 { "dump", EQUAL, 1, dump },
4477 { "dot", EQUAL, 1, dot },
4478 { "snapshot", LESS, 2, snapshot },
4479 { "delete", MORE, 2, delete_snapshot },
4480 { "daemon-reload", EQUAL, 1, daemon_reload },
4481 { "daemon-reexec", EQUAL, 1, daemon_reload },
4482 { "daemon-exit", EQUAL, 1, daemon_reload },
4483 { "show-environment", EQUAL, 1, show_enviroment },
4484 { "set-environment", MORE, 2, set_environment },
4485 { "unset-environment", MORE, 2, set_environment },
4486 { "halt", EQUAL, 1, start_special },
4487 { "poweroff", EQUAL, 1, start_special },
4488 { "reboot", EQUAL, 1, start_special },
4489 { "default", EQUAL, 1, start_special },
4490 { "rescue", EQUAL, 1, start_special },
4491 { "emergency", EQUAL, 1, start_special },
4492 { "reset-maintenance", MORE, 1, reset_maintenance },
4493 { "enable", MORE, 2, enable_unit },
4494 { "disable", MORE, 2, enable_unit },
4495 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 4496 };
4497
e4b61340 4498 int left;
7e4249b9 4499 unsigned i;
7e4249b9 4500
e4b61340
LP		 4501 assert(argc >= 0);
4502 assert(argv);
ee5762e3 4503 assert(error);
7e4249b9
LP		 4504
4505 left = argc - optind;
4506
4507 if (left <= 0)
4508 /* Special rule: no arguments means "list-units" */
4509 i = 0;
4510 else {
0183528f
LP		 4511 if (streq(argv[optind], "help")) {
4512 systemctl_help();
4513 return 0;
4514 }
4515
7e4249b9
LP		 4516 for (i = 0; i < ELEMENTSOF(verbs); i++)
4517 if (streq(argv[optind], verbs[i].verb))
4518 break;
4519
4520 if (i >= ELEMENTSOF(verbs)) {
4521 log_error("Unknown operation %s", argv[optind]);
e4b61340 4522 return -EINVAL;
7e4249b9
LP		 4523 }
4524 }
4525
4526 switch (verbs[i].argc_cmp) {
4527
4528 case EQUAL:
4529 if (left != verbs[i].argc) {
4530 log_error("Invalid number of arguments.");
e4b61340 4531 return -EINVAL;
7e4249b9
LP		 4532 }
4533
4534 break;
4535
4536 case MORE:
4537 if (left < verbs[i].argc) {
4538 log_error("Too few arguments.");
e4b61340 4539 return -EINVAL;
7e4249b9
LP		 4540 }
4541
4542 break;
4543
4544 case LESS:
4545 if (left > verbs[i].argc) {
4546 log_error("Too many arguments.");
e4b61340 4547 return -EINVAL;
7e4249b9
LP		 4548 }
4549
4550 break;
4551
4552 default:
4553 assert_not_reached("Unknown comparison operator.");
4554 }
4555
ee5762e3
LP		 4556 /* Require a bus connection for all operations but
4557 * enable/disable */
4558 if (!streq(verbs[i].verb, "enable") &&
4559 !streq(verbs[i].verb, "disable") &&
4560 !bus) {
4561 log_error("Failed to get D-Bus connection: %s", error->message);
4562 return -EIO;
4563 }
4564
e4b61340
LP		 4565 return verbs[i].dispatch(bus, argv + optind, left);
4566}
4567
4568static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4569
4570 if (bus) {
4571 /* First, try systemd via D-Bus. */
e364ad06 4572 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 4573 return 0;
4574 }
4575
4576 /* Nothing else worked, so let's try signals */
4577 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4578
4579 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4580 log_error("kill() failed: %m");
4581 return -errno;
4582 }
4583
4584 return 0;
4585}
4586
4587static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4588
4589 if (bus) {
4590 /* First, try systemd via D-Bus. */
e364ad06 4591 if (start_unit(bus, NULL, 0) > 0)
983d9c90 4592 goto done;
e4b61340
LP		 4593 }
4594
ec7f7f20
LP		 4595 /* Hmm, talking to systemd via D-Bus didn't work. Then
4596 * let's try to talk to Upstart via D-Bus. */
e364ad06 4597 if (talk_upstart() > 0)
ec7f7f20
LP		 4598 goto done;
4599
e4b61340
LP		 4600 /* Nothing else worked, so let's try
4601 * /dev/initctl */
e364ad06 4602 if (talk_initctl() != 0)
983d9c90 4603 goto done;
d55ae9e6
LP		 4604
4605 log_error("Failed to talk to init daemon.");
4606 return -EIO;
983d9c90
LP		 4607
4608done:
4609 warn_wall(arg_action);
4610 return 0;
e4b61340
LP		 4611}
4612
4613static int halt_main(DBusConnection *bus) {
4614 int r;
4615
bc8c2f5c
LP		 4616 if (geteuid() != 0) {
4617 log_error("Must to be root.");
4618 return -EPERM;
4619 }
4620
d47b555b 4621 if (!arg_dry && !arg_immediate)
e4b61340
LP		 4622 return start_with_fallback(bus);
4623
4624 if (!arg_no_wtmp)
4625 if ((r = utmp_put_shutdown(0)) < 0)
4626 log_warning("Failed to write utmp record: %s", strerror(-r));
4627
4628 if (!arg_no_sync)
4629 sync();
4630
4631 if (arg_dry)
4632 return 0;
4633
4634 /* Make sure C-A-D is handled by the kernel from this
4635 * point on... */
4636 reboot(RB_ENABLE_CAD);
4637
4638 switch (arg_action) {
4639
4640 case ACTION_HALT:
3059b1c1 4641 log_info("Halting.");
e4b61340
LP		 4642 reboot(RB_HALT_SYSTEM);
4643 break;
4644
4645 case ACTION_POWEROFF:
3059b1c1 4646 log_info("Powering off.");
e4b61340
LP		 4647 reboot(RB_POWER_OFF);
4648 break;
4649
4650 case ACTION_REBOOT:
3059b1c1 4651 log_info("Rebooting.");
e4b61340
LP		 4652 reboot(RB_AUTOBOOT);
4653 break;
4654
4655 default:
4656 assert_not_reached("Unknown halt action.");
4657 }
4658
4659 /* We should never reach this. */
4660 return -ENOSYS;
4661}
4662
4663static int runlevel_main(void) {
4664 int r, runlevel, previous;
4665
4666 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 4667 printf("unknown\n");
e4b61340
LP		 4668 return r;
4669 }
4670
4671 printf("%c %c\n",
4672 previous <= 0 ? 'N' : previous,
4673 runlevel <= 0 ? 'N' : runlevel);
4674
4675 return 0;
4676}
4677
4678int main(int argc, char*argv[]) {
4679 int r, retval = 1;
4680 DBusConnection *bus = NULL;
4681 DBusError error;
4682
4683 dbus_error_init(&error);
4684
4685 log_parse_environment();
4686
4687 if ((r = parse_argv(argc, argv)) < 0)
4688 goto finish;
4689 else if (r == 0) {
4690 retval = 0;
7e4249b9
LP		 4691 goto finish;
4692 }
4693
e4b61340
LP		 4694 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
4695 * let's shortcut this */
4696 if (arg_action == ACTION_RUNLEVEL) {
4697 retval = runlevel_main() < 0;
4698 goto finish;
4699 }
4700
f4579ce7 4701 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 4702
4703 switch (arg_action) {
4704
4705 case ACTION_SYSTEMCTL: {
ee5762e3 4706 retval = systemctl_main(bus, argc, argv, &error) < 0;
e4b61340
LP		 4707 break;
4708 }
4709
4710 case ACTION_HALT:
4711 case ACTION_POWEROFF:
4712 case ACTION_REBOOT:
4713 retval = halt_main(bus) < 0;
4714 break;
4715
e4b61340
LP		 4716 case ACTION_RUNLEVEL2:
4717 case ACTION_RUNLEVEL3:
4718 case ACTION_RUNLEVEL4:
4719 case ACTION_RUNLEVEL5:
4720 case ACTION_RESCUE:
514f4ef5 4721 case ACTION_EMERGENCY:
eb22ac37 4722 case ACTION_DEFAULT:
e4b61340
LP		 4723 retval = start_with_fallback(bus) < 0;
4724 break;
7e4249b9 4725
e4b61340
LP		 4726 case ACTION_RELOAD:
4727 case ACTION_REEXEC:
4728 retval = reload_with_fallback(bus) < 0;
4729 break;
4730
eb22ac37
LP		 4731 case ACTION_INVALID:
4732 case ACTION_RUNLEVEL:
e4b61340
LP		 4733 default:
4734 assert_not_reached("Unknown action");
4735 }
7e4249b9
LP		 4736
4737finish:
4738
b574246b
LP		 4739 if (bus) {
4740 dbus_connection_close(bus);
7e4249b9 4741 dbus_connection_unref(bus);
b574246b 4742 }
7e4249b9 4743
e4b61340
LP		 4744 dbus_error_free(&error);
4745
7e4249b9
LP		 4746 dbus_shutdown();
4747
ea4a240d
LP		 4748 strv_free(arg_property);
4749
7e4249b9
LP		 4750 return retval;
4751}
Unnamed repository; edit this file 'description' to name the repository.