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[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)
fbc43921
LP		 1174 if ((r = wait_for_jobs(bus, s)) < 0)
1175 goto finish;
1176
1177 r = 1;
514f4ef5 1178
e4b61340
LP		 1179finish:
1180 if (s)
1181 set_free_free(s);
1182
1183 return r;
1184}
1185
514f4ef5 1186static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1187 int r;
1188
514f4ef5
LP		 1189 assert(bus);
1190 assert(args);
1191
983d9c90
LP		 1192 r = start_unit(bus, args, n);
1193
1194 if (r >= 0)
1195 warn_wall(verb_to_action(args[0]));
514f4ef5 1196
983d9c90 1197 return r;
514f4ef5
LP		 1198}
1199
0183528f
LP		 1200static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1201 DBusMessage *m = NULL, *reply = NULL;
1202 const char
1203 *interface = "org.freedesktop.systemd1.Unit",
1204 *property = "ActiveState";
1205 int r = -EADDRNOTAVAIL;
1206 DBusError error;
1207 unsigned i;
1208
1209 assert(bus);
1210 assert(args);
1211
1212 dbus_error_init(&error);
1213
1214 for (i = 1; i < n; i++) {
1215 const char *path = NULL;
1216 const char *state;
1217 DBusMessageIter iter, sub;
1218
1219 if (!(m = dbus_message_new_method_call(
1220 "org.freedesktop.systemd1",
1221 "/org/freedesktop/systemd1",
1222 "org.freedesktop.systemd1.Manager",
1223 "GetUnit"))) {
1224 log_error("Could not allocate message.");
1225 r = -ENOMEM;
1226 goto finish;
1227 }
1228
1229 if (!dbus_message_append_args(m,
1230 DBUS_TYPE_STRING, &args[i],
1231 DBUS_TYPE_INVALID)) {
1232 log_error("Could not append arguments to message.");
1233 r = -ENOMEM;
1234 goto finish;
1235 }
1236
1237 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1238
1239 /* Hmm, cannot figure out anything about this unit... */
1240 if (!arg_quiet)
1241 puts("unknown");
1242
ed2d7a44 1243 dbus_error_free(&error);
0183528f
LP		 1244 continue;
1245 }
1246
1247 if (!dbus_message_get_args(reply, &error,
1248 DBUS_TYPE_OBJECT_PATH, &path,
1249 DBUS_TYPE_INVALID)) {
1250 log_error("Failed to parse reply: %s", error.message);
1251 r = -EIO;
1252 goto finish;
1253 }
1254
1255 dbus_message_unref(m);
1256 if (!(m = dbus_message_new_method_call(
1257 "org.freedesktop.systemd1",
1258 path,
1259 "org.freedesktop.DBus.Properties",
1260 "Get"))) {
1261 log_error("Could not allocate message.");
1262 r = -ENOMEM;
1263 goto finish;
1264 }
1265
1266 if (!dbus_message_append_args(m,
1267 DBUS_TYPE_STRING, &interface,
1268 DBUS_TYPE_STRING, &property,
1269 DBUS_TYPE_INVALID)) {
1270 log_error("Could not append arguments to message.");
1271 r = -ENOMEM;
1272 goto finish;
1273 }
1274
1275 dbus_message_unref(reply);
1276 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1277 log_error("Failed to issue method call: %s", error.message);
1278 r = -EIO;
1279 goto finish;
1280 }
1281
1282 if (!dbus_message_iter_init(reply, &iter) ||
1283 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1284 log_error("Failed to parse reply.");
1285 r = -EIO;
1286 goto finish;
1287 }
1288
1289 dbus_message_iter_recurse(&iter, &sub);
1290
1291 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1292 log_error("Failed to parse reply.");
1293 r = -EIO;
1294 goto finish;
1295 }
1296
1297 dbus_message_iter_get_basic(&sub, &state);
1298
1299 if (!arg_quiet)
1300 puts(state);
1301
01b1b079 1302 if (streq(state, "active") || startswith(state, "reloading"))
0183528f
LP		 1303 r = 0;
1304
1305 dbus_message_unref(m);
1306 dbus_message_unref(reply);
1307 m = reply = NULL;
1308 }
1309
1310finish:
1311 if (m)
1312 dbus_message_unref(m);
1313
1314 if (reply)
1315 dbus_message_unref(reply);
1316
1317 dbus_error_free(&error);
1318
1319 return r;
48220598
LP		 1320}
1321
582a507f
LP		 1322typedef struct ExecStatusInfo {
1323 char *path;
1324 char **argv;
1325
b708e7ce
LP		 1326 bool ignore;
1327
582a507f
LP		 1328 usec_t start_timestamp;
1329 usec_t exit_timestamp;
1330 pid_t pid;
1331 int code;
1332 int status;
1333
1334 LIST_FIELDS(struct ExecStatusInfo, exec);
1335} ExecStatusInfo;
1336
1337static void exec_status_info_free(ExecStatusInfo *i) {
1338 assert(i);
1339
1340 free(i->path);
1341 strv_free(i->argv);
1342 free(i);
1343}
1344
1345static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1346 uint64_t start_timestamp, exit_timestamp;
1347 DBusMessageIter sub2, sub3;
1348 const char*path;
1349 unsigned n;
1350 uint32_t pid;
1351 int32_t code, status;
b708e7ce 1352 dbus_bool_t ignore;
582a507f
LP		 1353
1354 assert(i);
1355 assert(i);
1356
1357 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1358 return -EIO;
1359
1360 dbus_message_iter_recurse(sub, &sub2);
1361
1362 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1363 return -EIO;
1364
1365 if (!(i->path = strdup(path)))
1366 return -ENOMEM;
1367
1368 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1369 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1370 return -EIO;
1371
1372 n = 0;
1373 dbus_message_iter_recurse(&sub2, &sub3);
1374 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1375 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1376 dbus_message_iter_next(&sub3);
1377 n++;
1378 }
1379
1380
1381 if (!(i->argv = new0(char*, n+1)))
1382 return -ENOMEM;
1383
1384 n = 0;
1385 dbus_message_iter_recurse(&sub2, &sub3);
1386 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1387 const char *s;
1388
1389 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1390 dbus_message_iter_get_basic(&sub3, &s);
1391 dbus_message_iter_next(&sub3);
1392
1393 if (!(i->argv[n++] = strdup(s)))
1394 return -ENOMEM;
1395 }
1396
1397 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1398 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1399 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1400 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1401 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1402 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1403 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1404 return -EIO;
1405
b708e7ce 1406 i->ignore = ignore;
582a507f
LP		 1407 i->start_timestamp = (usec_t) start_timestamp;
1408 i->exit_timestamp = (usec_t) exit_timestamp;
1409 i->pid = (pid_t) pid;
1410 i->code = code;
1411 i->status = status;
1412
1413 return 0;
1414}
1415
61cbdc4b
LP		 1416typedef struct UnitStatusInfo {
1417 const char *id;
1418 const char *load_state;
1419 const char *active_state;
1420 const char *sub_state;
1421
1422 const char *description;
1423
c31b4423 1424 const char *path;
61cbdc4b
LP		 1425 const char *default_control_group;
1426
45fb0699
LP		 1427 bool need_daemon_reload;
1428
61cbdc4b
LP		 1429 /* Service */
1430 pid_t main_pid;
1431 pid_t control_pid;
1432 const char *status_text;
1433 bool running;
1434
1435 usec_t start_timestamp;
1436 usec_t exit_timestamp;
1437
1438 int exit_code, exit_status;
1439
1440 /* Socket */
1441 unsigned n_accepted;
1442 unsigned n_connections;
b8131a87 1443 bool accept;
61cbdc4b
LP		 1444
1445 /* Device */
1446 const char *sysfs_path;
1447
1448 /* Mount, Automount */
1449 const char *where;
1450
1451 /* Swap */
1452 const char *what;
582a507f
LP		 1453
1454 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1455} UnitStatusInfo;
1456
1457static void print_status_info(UnitStatusInfo *i) {
582a507f 1458 ExecStatusInfo *p;
2ee68f72 1459 const char *on, *off, *ss;
582a507f 1460
61cbdc4b
LP		 1461 assert(i);
1462
1463 /* This shows pretty information about a unit. See
1464 * print_property() for a low-level property printer */
1465
1466 printf("%s", strna(i->id));
1467
1468 if (i->description && !streq_ptr(i->id, i->description))
1469 printf(" - %s", i->description);
1470
1471 printf("\n");
1472
c31b4423
LP		 1473 if (streq_ptr(i->load_state, "failed")) {
1474 on = ansi_highlight(true);
1475 off = ansi_highlight(false);
1476 } else
1477 on = off = "";
1478
1479 if (i->path)
1480 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1481 else
c31b4423 1482 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1483
2ee68f72
LP		 1484 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1485
582a507f 1486 if (streq_ptr(i->active_state, "maintenance")) {
2ee68f72
LP		 1487 on = ansi_highlight(true);
1488 off = ansi_highlight(false);
1489 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1490 on = ansi_highlight_green(true);
1491 off = ansi_highlight_green(false);
1492 } else
1493 on = off = "";
1494
1495 if (ss)
1496 printf("\t Active: %s%s (%s)%s\n",
1497 on,
1498 strna(i->active_state),
1499 ss,
1500 off);
1501 else
1502 printf("\t Active: %s%s%s\n",
1503 on,
1504 strna(i->active_state),
1505 off);
61cbdc4b
LP		 1506
1507 if (i->sysfs_path)
1508 printf("\t Device: %s\n", i->sysfs_path);
1509 else if (i->where)
1510 printf("\t Where: %s\n", i->where);
1511 else if (i->what)
1512 printf("\t What: %s\n", i->what);
1513
b8131a87 1514 if (i->accept)
61cbdc4b
LP		 1515 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1516
582a507f
LP		 1517 LIST_FOREACH(exec, p, i->exec) {
1518 char *t;
1519
1520 /* Only show exited processes here */
1521 if (p->code == 0)
1522 continue;
1523
1524 t = strv_join(p->argv, " ");
1525 printf("\t Exited: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
1526 free(t);
1527
1528 if (p->code == CLD_EXITED)
1529 printf("status=%i", p->status);
1530 else
1531 printf("signal=%s", signal_to_string(p->status));
1532 printf(")\n");
1533
1534 if (i->main_pid == p->pid &&
1535 i->start_timestamp == p->start_timestamp &&
1536 i->exit_timestamp == p->start_timestamp)
1537 /* Let's not show this twice */
1538 i->main_pid = 0;
1539
1540 if (p->pid == i->control_pid)
1541 i->control_pid = 0;
1542 }
1543
61cbdc4b
LP		 1544 if (i->main_pid > 0 || i->control_pid > 0) {
1545 printf("\t");
1546
1547 if (i->main_pid > 0) {
582a507f 1548 printf(" Main: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1549
1550 if (i->running) {
1551 char *t = NULL;
1552 get_process_name(i->main_pid, &t);
1553 if (t) {
1554 printf(" (%s)", t);
1555 free(t);
1556 }
6d4fc029 1557 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1558 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1559
1560 if (i->exit_code == CLD_EXITED)
1561 printf("status=%i", i->exit_status);
1562 else
582a507f 1563 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1564 printf(")");
1565 }
61cbdc4b
LP		 1566 }
1567
1568 if (i->main_pid > 0 && i->control_pid > 0)
1569 printf(";");
1570
1571 if (i->control_pid > 0) {
1572 char *t = NULL;
1573
1574 printf(" Control: %u", (unsigned) i->control_pid);
1575
1576 get_process_name(i->control_pid, &t);
1577 if (t) {
1578 printf(" (%s)", t);
1579 free(t);
1580 }
1581 }
1582
1583 printf("\n");
1584 }
1585
17bb7382
LP		 1586 if (i->status_text)
1587 printf("\t Status: \"%s\"\n", i->status_text);
1588
c59760ee 1589 if (i->default_control_group) {
ab35fb1b
LP		 1590 unsigned c;
1591
61cbdc4b 1592 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1593
1594 if ((c = columns()) > 18)
1595 c -= 18;
1596 else
1597 c = 0;
1598
35d2e7ec 1599 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1600 }
45fb0699
LP		 1601
1602 if (i->need_daemon_reload)
2cc59dbf
LP		 1603 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1604 ansi_highlight(true),
1605 ansi_highlight(false),
45fb0699 1606 arg_session ? "--session" : "--system");
61cbdc4b
LP		 1607}
1608
1609static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1610
1611 switch (dbus_message_iter_get_arg_type(iter)) {
1612
1613 case DBUS_TYPE_STRING: {
1614 const char *s;
1615
1616 dbus_message_iter_get_basic(iter, &s);
1617
1618 if (s[0]) {
1619 if (streq(name, "Id"))
1620 i->id = s;
1621 else if (streq(name, "LoadState"))
1622 i->load_state = s;
1623 else if (streq(name, "ActiveState"))
1624 i->active_state = s;
1625 else if (streq(name, "SubState"))
1626 i->sub_state = s;
1627 else if (streq(name, "Description"))
1628 i->description = s;
1629 else if (streq(name, "FragmentPath"))
c31b4423
LP		 1630 i->path = s;
1631 else if (streq(name, "SysVPath"))
1632 i->path = s;
61cbdc4b
LP		 1633 else if (streq(name, "DefaultControlGroup"))
1634 i->default_control_group = s;
1635 else if (streq(name, "StatusText"))
1636 i->status_text = s;
1637 else if (streq(name, "SysFSPath"))
1638 i->sysfs_path = s;
1639 else if (streq(name, "Where"))
1640 i->where = s;
1641 else if (streq(name, "What"))
1642 i->what = s;
1643 }
1644
1645 break;
1646 }
1647
b8131a87
LP		 1648 case DBUS_TYPE_BOOLEAN: {
1649 dbus_bool_t b;
1650
1651 dbus_message_iter_get_basic(iter, &b);
1652
1653 if (streq(name, "Accept"))
1654 i->accept = b;
45fb0699
LP		 1655 else if (streq(name, "NeedDaemonReload"))
1656 i->need_daemon_reload = b;
b8131a87
LP		 1657
1658 break;
1659 }
1660
61cbdc4b
LP		 1661 case DBUS_TYPE_UINT32: {
1662 uint32_t u;
1663
1664 dbus_message_iter_get_basic(iter, &u);
1665
1666 if (streq(name, "MainPID")) {
1667 if (u > 0) {
1668 i->main_pid = (pid_t) u;
1669 i->running = true;
1670 }
1671 } else if (streq(name, "ControlPID"))
1672 i->control_pid = (pid_t) u;
1673 else if (streq(name, "ExecMainPID")) {
1674 if (u > 0)
1675 i->main_pid = (pid_t) u;
1676 } else if (streq(name, "NAccepted"))
1677 i->n_accepted = u;
1678 else if (streq(name, "NConnections"))
1679 i->n_connections = u;
1680
1681 break;
1682 }
1683
1684 case DBUS_TYPE_INT32: {
1685 int32_t j;
1686
1687 dbus_message_iter_get_basic(iter, &j);
1688
1689 if (streq(name, "ExecMainCode"))
1690 i->exit_code = (int) j;
1691 else if (streq(name, "ExecMainStatus"))
1692 i->exit_status = (int) j;
1693
1694 break;
1695 }
1696
1697 case DBUS_TYPE_UINT64: {
1698 uint64_t u;
1699
1700 dbus_message_iter_get_basic(iter, &u);
1701
1702 if (streq(name, "ExecMainStartTimestamp"))
1703 i->start_timestamp = (usec_t) u;
1704 else if (streq(name, "ExecMainExitTimestamp"))
1705 i->exit_timestamp = (usec_t) u;
1706
1707 break;
1708 }
582a507f
LP		 1709
1710 case DBUS_TYPE_ARRAY: {
1711
1712 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1713 startswith(name, "Exec")) {
1714 DBusMessageIter sub;
1715
1716 dbus_message_iter_recurse(iter, &sub);
1717 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1718 ExecStatusInfo *info;
1719 int r;
1720
1721 if (!(info = new0(ExecStatusInfo, 1)))
1722 return -ENOMEM;
1723
1724 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1725 free(info);
1726 return r;
1727 }
1728
1729 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1730
1731 dbus_message_iter_next(&sub);
1732 }
1733 }
1734
1735 break;
1736 }
61cbdc4b
LP		 1737 }
1738
1739 return 0;
1740}
1741
48220598
LP		 1742static int print_property(const char *name, DBusMessageIter *iter) {
1743 assert(name);
1744 assert(iter);
1745
61cbdc4b
LP		 1746 /* This is a low-level property printer, see
1747 * print_status_info() for the nicer output */
1748
ea4a240d 1749 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 1750 return 0;
1751
1752 switch (dbus_message_iter_get_arg_type(iter)) {
1753
1754 case DBUS_TYPE_STRING: {
1755 const char *s;
1756 dbus_message_iter_get_basic(iter, &s);
1757
1758 if (arg_all || s[0])
1759 printf("%s=%s\n", name, s);
1760
1761 return 0;
1762 }
1763
1764 case DBUS_TYPE_BOOLEAN: {
1765 dbus_bool_t b;
1766 dbus_message_iter_get_basic(iter, &b);
1767 printf("%s=%s\n", name, yes_no(b));
1768
1769 return 0;
1770 }
1771
1772 case DBUS_TYPE_UINT64: {
1773 uint64_t u;
1774 dbus_message_iter_get_basic(iter, &u);
1775
1776 /* Yes, heuristics! But we can change this check
1777 * should it turn out to not be sufficient */
1778
14ad1d14 1779 if (strstr(name, "Timestamp")) {
48220598
LP		 1780 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1781
1782 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1783 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 1784 } else if (strstr(name, "USec")) {
1785 char timespan[FORMAT_TIMESPAN_MAX];
1786
1787 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 1788 } else
1789 printf("%s=%llu\n", name, (unsigned long long) u);
1790
1791 return 0;
1792 }
1793
1794 case DBUS_TYPE_UINT32: {
1795 uint32_t u;
1796 dbus_message_iter_get_basic(iter, &u);
1797
5bd07073 1798 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 1799 printf("%s=%04o\n", name, u);
1800 else
1801 printf("%s=%u\n", name, (unsigned) u);
1802
1803 return 0;
1804 }
1805
1806 case DBUS_TYPE_INT32: {
1807 int32_t i;
1808 dbus_message_iter_get_basic(iter, &i);
1809
1810 printf("%s=%i\n", name, (int) i);
1811 return 0;
1812 }
1813
1814 case DBUS_TYPE_STRUCT: {
1815 DBusMessageIter sub;
1816 dbus_message_iter_recurse(iter, &sub);
1817
ebf57b80 1818 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 1819 uint32_t u;
1820
1821 dbus_message_iter_get_basic(&sub, &u);
1822
1823 if (u)
1824 printf("%s=%u\n", name, (unsigned) u);
1825 else if (arg_all)
1826 printf("%s=\n", name);
1827
1828 return 0;
ebf57b80 1829 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 1830 const char *s;
1831
1832 dbus_message_iter_get_basic(&sub, &s);
1833
1834 if (arg_all || s[0])
1835 printf("%s=%s\n", name, s);
1836
1837 return 0;
1838 }
1839
1840 break;
1841 }
1842
1843 case DBUS_TYPE_ARRAY:
1844
1845 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
1846 DBusMessageIter sub;
1847 bool space = false;
1848
1849 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 1850 if (arg_all ||
1851 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1852 printf("%s=", name);
1853
1854 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1855 const char *s;
1856
1857 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
1858 dbus_message_iter_get_basic(&sub, &s);
1859 printf("%s%s", space ? " " : "", s);
1860
1861 space = true;
1862 dbus_message_iter_next(&sub);
1863 }
1864
1865 puts("");
1866 }
1867
ebf57b80 1868 return 0;
582a507f 1869
82c121a4
LP		 1870 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
1871 DBusMessageIter sub;
1872
1873 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 1874 if (arg_all ||
1875 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1876 printf("%s=", name);
1877
1878 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1879 uint8_t u;
ebf57b80 1880
82c121a4
LP		 1881 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
1882 dbus_message_iter_get_basic(&sub, &u);
1883 printf("%02x", u);
1884
1885 dbus_message_iter_next(&sub);
1886 }
1887
1888 puts("");
1889 }
1890
1891 return 0;
582a507f 1892
ebf57b80
LP		 1893 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
1894 DBusMessageIter sub, sub2;
1895
1896 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 1897 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1898 const char *type, *path;
1899
1900 dbus_message_iter_recurse(&sub, &sub2);
1901
1902 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
1903 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
1904 printf("%s=%s\n", type, path);
1905
1906 dbus_message_iter_next(&sub);
1907 }
1908
707e5e52 1909 return 0;
582a507f 1910
707e5e52
LP		 1911 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
1912 DBusMessageIter sub, sub2;
1913
1914 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 1915 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1916 const char *base;
1917 uint64_t value, next_elapse;
1918
1919 dbus_message_iter_recurse(&sub, &sub2);
1920
1921 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
1922 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 1923 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
1924 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
1925
1926 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 1927 base,
552e4331
LP		 1928 format_timespan(timespan1, sizeof(timespan1), value),
1929 format_timespan(timespan2, sizeof(timespan2), next_elapse));
1930 }
fe68089d
LP		 1931
1932 dbus_message_iter_next(&sub);
1933 }
1934
1935 return 0;
fe68089d 1936
582a507f
LP		 1937 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
1938 DBusMessageIter sub;
fe68089d
LP		 1939
1940 dbus_message_iter_recurse(iter, &sub);
fe68089d 1941 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 1942 ExecStatusInfo info;
fe68089d 1943
582a507f
LP		 1944 zero(info);
1945 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 1946 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 1947 char *t;
1948
1949 t = strv_join(info.argv, " ");
1950
b708e7ce 1951 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		 1952 name,
1953 strna(info.path),
1954 strna(t),
b708e7ce 1955 yes_no(info.ignore),
582a507f
LP		 1956 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
1957 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
1958 (unsigned) info. pid,
1959 sigchld_code_to_string(info.code),
1960 info.status,
1961 info.code == CLD_EXITED ? "" : "/",
1962 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 1963
582a507f 1964 free(t);
fe68089d
LP		 1965 }
1966
582a507f
LP		 1967 free(info.path);
1968 strv_free(info.argv);
707e5e52
LP		 1969
1970 dbus_message_iter_next(&sub);
1971 }
1972
48220598
LP		 1973 return 0;
1974 }
1975
1976 break;
1977 }
1978
1979 if (arg_all)
1980 printf("%s=[unprintable]\n", name);
1981
1982 return 0;
1983}
1984
61cbdc4b 1985static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 1986 DBusMessage *m = NULL, *reply = NULL;
1987 const char *interface = "";
1988 int r;
1989 DBusError error;
1990 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 1991 UnitStatusInfo info;
582a507f 1992 ExecStatusInfo *p;
48220598
LP		 1993
1994 assert(bus);
1995 assert(path);
61cbdc4b 1996 assert(new_line);
48220598 1997
61cbdc4b 1998 zero(info);
48220598
LP		 1999 dbus_error_init(&error);
2000
2001 if (!(m = dbus_message_new_method_call(
2002 "org.freedesktop.systemd1",
2003 path,
2004 "org.freedesktop.DBus.Properties",
2005 "GetAll"))) {
2006 log_error("Could not allocate message.");
2007 r = -ENOMEM;
2008 goto finish;
2009 }
2010
2011 if (!dbus_message_append_args(m,
2012 DBUS_TYPE_STRING, &interface,
2013 DBUS_TYPE_INVALID)) {
2014 log_error("Could not append arguments to message.");
2015 r = -ENOMEM;
2016 goto finish;
2017 }
2018
2019 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2020 log_error("Failed to issue method call: %s", error.message);
2021 r = -EIO;
2022 goto finish;
2023 }
2024
2025 if (!dbus_message_iter_init(reply, &iter) ||
2026 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2027 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2028 log_error("Failed to parse reply.");
2029 r = -EIO;
2030 goto finish;
2031 }
2032
2033 dbus_message_iter_recurse(&iter, &sub);
2034
61cbdc4b
LP		 2035 if (*new_line)
2036 printf("\n");
2037
2038 *new_line = true;
2039
48220598
LP		 2040 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2041 const char *name;
2042
2043 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2044 log_error("Failed to parse reply.");
2045 r = -EIO;
2046 goto finish;
2047 }
2048
2049 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2050
48220598
LP		 2051 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2052 log_error("Failed to parse reply.");
2053 r = -EIO;
2054 goto finish;
2055 }
2056
2057 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2058 log_error("Failed to parse reply.");
2059 r = -EIO;
2060 goto finish;
2061 }
2062
2063 dbus_message_iter_recurse(&sub2, &sub3);
2064
61cbdc4b
LP		 2065 if (show_properties)
2066 r = print_property(name, &sub3);
2067 else
2068 r = status_property(name, &sub3, &info);
2069
2070 if (r < 0) {
48220598
LP		 2071 log_error("Failed to parse reply.");
2072 r = -EIO;
2073 goto finish;
2074 }
2075
2076 dbus_message_iter_next(&sub);
2077 }
2078
61cbdc4b
LP		 2079 if (!show_properties)
2080 print_status_info(&info);
2081
582a507f
LP		 2082 while ((p = info.exec)) {
2083 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2084 exec_status_info_free(p);
2085 }
2086
48220598
LP		 2087 r = 0;
2088
2089finish:
2090 if (m)
2091 dbus_message_unref(m);
2092
2093 if (reply)
2094 dbus_message_unref(reply);
2095
2096 dbus_error_free(&error);
2097
2098 return r;
2099}
2100
2101static int show(DBusConnection *bus, char **args, unsigned n) {
2102 DBusMessage *m = NULL, *reply = NULL;
2103 int r;
2104 DBusError error;
2105 unsigned i;
61cbdc4b 2106 bool show_properties, new_line = false;
48220598
LP		 2107
2108 assert(bus);
2109 assert(args);
2110
2111 dbus_error_init(&error);
2112
61cbdc4b
LP		 2113 show_properties = !streq(args[0], "status");
2114
2115 if (show_properties && n <= 1) {
48220598
LP		 2116 /* If not argument is specified inspect the manager
2117 * itself */
2118
61cbdc4b 2119 r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2120 goto finish;
2121 }
2122
2123 for (i = 1; i < n; i++) {
2124 const char *path = NULL;
2125 uint32_t id;
2126
598b557b
LP		 2127 if (safe_atou32(args[i], &id) < 0) {
2128
2129 /* Interpret as unit name */
48220598
LP		 2130
2131 if (!(m = dbus_message_new_method_call(
2132 "org.freedesktop.systemd1",
2133 "/org/freedesktop/systemd1",
2134 "org.freedesktop.systemd1.Manager",
e87d1818 2135 "LoadUnit"))) {
48220598
LP		 2136 log_error("Could not allocate message.");
2137 r = -ENOMEM;
2138 goto finish;
2139 }
2140
2141 if (!dbus_message_append_args(m,
2142 DBUS_TYPE_STRING, &args[i],
2143 DBUS_TYPE_INVALID)) {
2144 log_error("Could not append arguments to message.");
2145 r = -ENOMEM;
2146 goto finish;
2147 }
2148
ed2d7a44
LP		 2149 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2150
2151 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2152 log_error("Failed to issue method call: %s", error.message);
2153 r = -EIO;
2154 goto finish;
2155 }
2156
2157 dbus_error_free(&error);
2158
2159 dbus_message_unref(m);
2160 if (!(m = dbus_message_new_method_call(
2161 "org.freedesktop.systemd1",
2162 "/org/freedesktop/systemd1",
2163 "org.freedesktop.systemd1.Manager",
2164 "GetUnit"))) {
2165 log_error("Could not allocate message.");
2166 r = -ENOMEM;
2167 goto finish;
2168 }
2169
2170 if (!dbus_message_append_args(m,
2171 DBUS_TYPE_STRING, &args[i],
2172 DBUS_TYPE_INVALID)) {
2173 log_error("Could not append arguments to message.");
2174 r = -ENOMEM;
2175 goto finish;
2176 }
2177
2178 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2179 log_error("Failed to issue method call: %s", error.message);
2180 r = -EIO;
2181 goto finish;
2182 }
2183 }
2184
598b557b
LP		 2185 } else if (show_properties) {
2186
2187 /* Interpret as job id */
48220598
LP		 2188
2189 if (!(m = dbus_message_new_method_call(
2190 "org.freedesktop.systemd1",
2191 "/org/freedesktop/systemd1",
2192 "org.freedesktop.systemd1.Manager",
2193 "GetJob"))) {
2194 log_error("Could not allocate message.");
2195 r = -ENOMEM;
2196 goto finish;
2197 }
2198
2199 if (!dbus_message_append_args(m,
2200 DBUS_TYPE_UINT32, &id,
2201 DBUS_TYPE_INVALID)) {
2202 log_error("Could not append arguments to message.");
2203 r = -ENOMEM;
2204 goto finish;
2205 }
48220598 2206
598b557b
LP		 2207 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2208 log_error("Failed to issue method call: %s", error.message);
2209 r = -EIO;
2210 goto finish;
2211 }
2212 } else {
2213
2214 /* Interpret as PID */
2215
2216 if (!(m = dbus_message_new_method_call(
2217 "org.freedesktop.systemd1",
2218 "/org/freedesktop/systemd1",
2219 "org.freedesktop.systemd1.Manager",
2220 "GetUnitByPID"))) {
2221 log_error("Could not allocate message.");
2222 r = -ENOMEM;
2223 goto finish;
2224 }
2225
2226 if (!dbus_message_append_args(m,
2227 DBUS_TYPE_UINT32, &id,
2228 DBUS_TYPE_INVALID)) {
2229 log_error("Could not append arguments to message.");
2230 r = -ENOMEM;
2231 goto finish;
2232 }
2233
ed2d7a44
LP		 2234 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2235 log_error("Failed to issue method call: %s", error.message);
2236 r = -EIO;
2237 goto finish;
2238 }
48220598
LP		 2239 }
2240
2241 if (!dbus_message_get_args(reply, &error,
2242 DBUS_TYPE_OBJECT_PATH, &path,
2243 DBUS_TYPE_INVALID)) {
2244 log_error("Failed to parse reply: %s", error.message);
2245 r = -EIO;
2246 goto finish;
2247 }
2248
61cbdc4b 2249 if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
48220598
LP		 2250 goto finish;
2251
2252 dbus_message_unref(m);
2253 dbus_message_unref(reply);
2254 m = reply = NULL;
2255 }
2256
2257 r = 0;
2258
2259finish:
2260 if (m)
2261 dbus_message_unref(m);
2262
2263 if (reply)
2264 dbus_message_unref(reply);
2265
2266 dbus_error_free(&error);
2267
2268 return r;
0183528f
LP		 2269}
2270
7e4249b9
LP		 2271static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2272 DBusError error;
2273 DBusMessage *m = NULL, *reply = NULL;
2274
2275 assert(connection);
2276 assert(message);
2277
2278 dbus_error_init(&error);
2279
54165a39
LP		 2280 log_debug("Got D-Bus request: %s.%s() on %s",
2281 dbus_message_get_interface(message),
2282 dbus_message_get_member(message),
2283 dbus_message_get_path(message));
7e4249b9
LP		 2284
2285 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2286 log_error("Warning! D-Bus connection terminated.");
2287 dbus_connection_close(connection);
2288
2289 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2290 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2291 const char *id, *path;
2292
2293 if (!dbus_message_get_args(message, &error,
2294 DBUS_TYPE_STRING, &id,
2295 DBUS_TYPE_OBJECT_PATH, &path,
2296 DBUS_TYPE_INVALID))
2297 log_error("Failed to parse message: %s", error.message);
2298 else if (streq(dbus_message_get_member(message), "UnitNew"))
2299 printf("Unit %s added.\n", id);
2300 else
2301 printf("Unit %s removed.\n", id);
2302
2303 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2304 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2305 uint32_t id;
2306 const char *path;
2307
2308 if (!dbus_message_get_args(message, &error,
2309 DBUS_TYPE_UINT32, &id,
2310 DBUS_TYPE_OBJECT_PATH, &path,
2311 DBUS_TYPE_INVALID))
2312 log_error("Failed to parse message: %s", error.message);
2313 else if (streq(dbus_message_get_member(message), "JobNew"))
2314 printf("Job %u added.\n", id);
2315 else
2316 printf("Job %u removed.\n", id);
2317
2318
2319 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Unit", "Changed") ||
2320 dbus_message_is_signal(message, "org.freedesktop.systemd1.Job", "Changed")) {
2321
2322 const char *path, *interface, *property = "Id";
2323 DBusMessageIter iter, sub;
2324
2325 path = dbus_message_get_path(message);
2326 interface = dbus_message_get_interface(message);
2327
2328 if (!(m = dbus_message_new_method_call(
2329 "org.freedesktop.systemd1",
2330 path,
2331 "org.freedesktop.DBus.Properties",
2332 "Get"))) {
2333 log_error("Could not allocate message.");
2334 goto oom;
2335 }
2336
2337 if (!dbus_message_append_args(m,
2338 DBUS_TYPE_STRING, &interface,
2339 DBUS_TYPE_STRING, &property,
2340 DBUS_TYPE_INVALID)) {
2341 log_error("Could not append arguments to message.");
2342 goto finish;
2343 }
2344
2345 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2346 log_error("Failed to issue method call: %s", error.message);
2347 goto finish;
2348 }
2349
2350 if (!dbus_message_iter_init(reply, &iter) ||
2351 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2352 log_error("Failed to parse reply.");
2353 goto finish;
2354 }
2355
2356 dbus_message_iter_recurse(&iter, &sub);
2357
2358 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2359 const char *id;
2360
2361 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2362 log_error("Failed to parse reply.");
2363 goto finish;
2364 }
2365
2366 dbus_message_iter_get_basic(&sub, &id);
2367 printf("Unit %s changed.\n", id);
2368 } else {
2369 uint32_t id;
2370
2371 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2372 log_error("Failed to parse reply.");
2373 goto finish;
2374 }
2375
2376 dbus_message_iter_get_basic(&sub, &id);
2377 printf("Job %u changed.\n", id);
2378 }
2379 }
2380
2381finish:
2382 if (m)
2383 dbus_message_unref(m);
2384
2385 if (reply)
2386 dbus_message_unref(reply);
2387
2388 dbus_error_free(&error);
2389 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2390
2391oom:
2392 if (m)
2393 dbus_message_unref(m);
2394
2395 if (reply)
2396 dbus_message_unref(reply);
2397
2398 dbus_error_free(&error);
2399 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2400}
2401
2402static int monitor(DBusConnection *bus, char **args, unsigned n) {
2403 DBusMessage *m = NULL, *reply = NULL;
2404 DBusError error;
2405 int r;
2406
2407 dbus_error_init(&error);
2408
f4579ce7
LP		 2409 if (!private_bus) {
2410 dbus_bus_add_match(bus,
2411 "type='signal',"
2412 "sender='org.freedesktop.systemd1',"
2413 "interface='org.freedesktop.systemd1.Manager',"
2414 "path='/org/freedesktop/systemd1'",
2415 &error);
7e4249b9 2416
f4579ce7
LP		 2417 if (dbus_error_is_set(&error)) {
2418 log_error("Failed to add match: %s", error.message);
2419 r = -EIO;
2420 goto finish;
2421 }
7e4249b9 2422
f4579ce7
LP		 2423 dbus_bus_add_match(bus,
2424 "type='signal',"
2425 "sender='org.freedesktop.systemd1',"
2426 "interface='org.freedesktop.systemd1.Unit',"
2427 "member='Changed'",
2428 &error);
7e4249b9 2429
f4579ce7
LP		 2430 if (dbus_error_is_set(&error)) {
2431 log_error("Failed to add match: %s", error.message);
2432 r = -EIO;
2433 goto finish;
2434 }
7e4249b9 2435
f4579ce7
LP		 2436 dbus_bus_add_match(bus,
2437 "type='signal',"
2438 "sender='org.freedesktop.systemd1',"
2439 "interface='org.freedesktop.systemd1.Job',"
2440 "member='Changed'",
2441 &error);
7e4249b9 2442
f4579ce7
LP		 2443 if (dbus_error_is_set(&error)) {
2444 log_error("Failed to add match: %s", error.message);
2445 r = -EIO;
2446 goto finish;
2447 }
7e4249b9
LP		 2448 }
2449
2450 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2451 log_error("Failed to add filter.");
2452 r = -ENOMEM;
2453 goto finish;
2454 }
2455
2456 if (!(m = dbus_message_new_method_call(
2457 "org.freedesktop.systemd1",
2458 "/org/freedesktop/systemd1",
2459 "org.freedesktop.systemd1.Manager",
2460 "Subscribe"))) {
2461 log_error("Could not allocate message.");
2462 r = -ENOMEM;
2463 goto finish;
2464 }
2465
2466 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2467 log_error("Failed to issue method call: %s", error.message);
2468 r = -EIO;
2469 goto finish;
2470 }
2471
2472 while (dbus_connection_read_write_dispatch(bus, -1))
2473 ;
2474
2475 r = 0;
2476
2477finish:
2478
2479 /* This is slightly dirty, since we don't undo the filter or the matches. */
2480
2481 if (m)
2482 dbus_message_unref(m);
2483
2484 if (reply)
2485 dbus_message_unref(reply);
2486
2487 dbus_error_free(&error);
2488
2489 return r;
2490}
2491
2492static int dump(DBusConnection *bus, char **args, unsigned n) {
2493 DBusMessage *m = NULL, *reply = NULL;
2494 DBusError error;
2495 int r;
2496 const char *text;
2497
2498 dbus_error_init(&error);
2499
2500 if (!(m = dbus_message_new_method_call(
2501 "org.freedesktop.systemd1",
2502 "/org/freedesktop/systemd1",
2503 "org.freedesktop.systemd1.Manager",
2504 "Dump"))) {
2505 log_error("Could not allocate message.");
2506 return -ENOMEM;
2507 }
2508
2509 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2510 log_error("Failed to issue method call: %s", error.message);
2511 r = -EIO;
2512 goto finish;
2513 }
2514
2515 if (!dbus_message_get_args(reply, &error,
2516 DBUS_TYPE_STRING, &text,
2517 DBUS_TYPE_INVALID)) {
2518 log_error("Failed to parse reply: %s", error.message);
2519 r = -EIO;
2520 goto finish;
2521 }
2522
2523 fputs(text, stdout);
2524
2525 r = 0;
2526
2527finish:
2528 if (m)
2529 dbus_message_unref(m);
2530
2531 if (reply)
2532 dbus_message_unref(reply);
2533
2534 dbus_error_free(&error);
2535
2536 return r;
2537}
2538
2539static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2540 DBusMessage *m = NULL, *reply = NULL;
2541 DBusError error;
2542 int r;
2543 const char *name = "", *path, *id;
2544 dbus_bool_t cleanup = FALSE;
2545 DBusMessageIter iter, sub;
2546 const char
2547 *interface = "org.freedesktop.systemd1.Unit",
2548 *property = "Id";
2549
2550 dbus_error_init(&error);
2551
2552 if (!(m = dbus_message_new_method_call(
2553 "org.freedesktop.systemd1",
2554 "/org/freedesktop/systemd1",
2555 "org.freedesktop.systemd1.Manager",
2556 "CreateSnapshot"))) {
2557 log_error("Could not allocate message.");
2558 return -ENOMEM;
2559 }
2560
2561 if (n > 1)
2562 name = args[1];
2563
2564 if (!dbus_message_append_args(m,
2565 DBUS_TYPE_STRING, &name,
2566 DBUS_TYPE_BOOLEAN, &cleanup,
2567 DBUS_TYPE_INVALID)) {
2568 log_error("Could not append arguments to message.");
2569 r = -ENOMEM;
2570 goto finish;
2571 }
2572
2573 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2574 log_error("Failed to issue method call: %s", error.message);
2575 r = -EIO;
2576 goto finish;
2577 }
2578
2579 if (!dbus_message_get_args(reply, &error,
2580 DBUS_TYPE_OBJECT_PATH, &path,
2581 DBUS_TYPE_INVALID)) {
2582 log_error("Failed to parse reply: %s", error.message);
2583 r = -EIO;
2584 goto finish;
2585 }
2586
2587 dbus_message_unref(m);
2588 if (!(m = dbus_message_new_method_call(
2589 "org.freedesktop.systemd1",
2590 path,
2591 "org.freedesktop.DBus.Properties",
2592 "Get"))) {
2593 log_error("Could not allocate message.");
2594 return -ENOMEM;
2595 }
2596
2597 if (!dbus_message_append_args(m,
2598 DBUS_TYPE_STRING, &interface,
2599 DBUS_TYPE_STRING, &property,
2600 DBUS_TYPE_INVALID)) {
2601 log_error("Could not append arguments to message.");
2602 r = -ENOMEM;
2603 goto finish;
2604 }
2605
2606 dbus_message_unref(reply);
2607 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2608 log_error("Failed to issue method call: %s", error.message);
2609 r = -EIO;
2610 goto finish;
2611 }
2612
2613 if (!dbus_message_iter_init(reply, &iter) ||
2614 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2615 log_error("Failed to parse reply.");
2616 r = -EIO;
2617 goto finish;
2618 }
2619
2620 dbus_message_iter_recurse(&iter, &sub);
2621
2622 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2623 log_error("Failed to parse reply.");
2624 r = -EIO;
2625 goto finish;
2626 }
2627
2628 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 2629
2630 if (!arg_quiet)
2631 puts(id);
7e4249b9
LP		 2632 r = 0;
2633
2634finish:
2635 if (m)
2636 dbus_message_unref(m);
2637
2638 if (reply)
2639 dbus_message_unref(reply);
2640
2641 dbus_error_free(&error);
2642
2643 return r;
2644}
2645
6759e7a7
LP		 2646static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2647 DBusMessage *m = NULL, *reply = NULL;
2648 int r;
2649 DBusError error;
2650 unsigned i;
2651
2652 assert(bus);
2653 assert(args);
2654
2655 dbus_error_init(&error);
2656
2657 for (i = 1; i < n; i++) {
2658 const char *path = NULL;
2659
2660 if (!(m = dbus_message_new_method_call(
2661 "org.freedesktop.systemd1",
2662 "/org/freedesktop/systemd1",
2663 "org.freedesktop.systemd1.Manager",
2664 "GetUnit"))) {
2665 log_error("Could not allocate message.");
2666 r = -ENOMEM;
2667 goto finish;
2668 }
2669
2670 if (!dbus_message_append_args(m,
2671 DBUS_TYPE_STRING, &args[i],
2672 DBUS_TYPE_INVALID)) {
2673 log_error("Could not append arguments to message.");
2674 r = -ENOMEM;
2675 goto finish;
2676 }
2677
2678 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2679 log_error("Failed to issue method call: %s", error.message);
2680 r = -EIO;
2681 goto finish;
2682 }
2683
2684 if (!dbus_message_get_args(reply, &error,
2685 DBUS_TYPE_OBJECT_PATH, &path,
2686 DBUS_TYPE_INVALID)) {
2687 log_error("Failed to parse reply: %s", error.message);
2688 r = -EIO;
2689 goto finish;
2690 }
2691
2692 dbus_message_unref(m);
2693 if (!(m = dbus_message_new_method_call(
2694 "org.freedesktop.systemd1",
2695 path,
2696 "org.freedesktop.systemd1.Snapshot",
2697 "Remove"))) {
2698 log_error("Could not allocate message.");
2699 r = -ENOMEM;
2700 goto finish;
2701 }
2702
2703 dbus_message_unref(reply);
2704 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2705 log_error("Failed to issue method call: %s", error.message);
2706 r = -EIO;
2707 goto finish;
2708 }
2709
2710 dbus_message_unref(m);
2711 dbus_message_unref(reply);
2712 m = reply = NULL;
2713 }
2714
2715 r = 0;
2716
2717finish:
2718 if (m)
2719 dbus_message_unref(m);
2720
2721 if (reply)
2722 dbus_message_unref(reply);
2723
2724 dbus_error_free(&error);
2725
2726 return r;
2727}
2728
ee5762e3 2729static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 2730 DBusMessage *m = NULL, *reply = NULL;
2731 DBusError error;
2732 int r;
2733 const char *method;
2734
2735 dbus_error_init(&error);
2736
e4b61340
LP		 2737 if (arg_action == ACTION_RELOAD)
2738 method = "Reload";
2739 else if (arg_action == ACTION_REEXEC)
2740 method = "Reexecute";
2741 else {
2742 assert(arg_action == ACTION_SYSTEMCTL);
2743
2744 method =
ee5762e3
LP		 2745 streq(args[0], "clear-jobs") ||
2746 streq(args[0], "cancel") ? "ClearJobs" :
5632e374
LP		 2747 streq(args[0], "daemon-reexec") ? "Reexecute" :
2748 streq(args[0], "reset-maintenance") ? "ResetMaintenance" :
ee5762e3
LP		 2749 streq(args[0], "daemon-exit") ? "Exit" :
2750 "Reload";
e4b61340 2751 }
7e4249b9
LP		 2752
2753 if (!(m = dbus_message_new_method_call(
2754 "org.freedesktop.systemd1",
2755 "/org/freedesktop/systemd1",
2756 "org.freedesktop.systemd1.Manager",
2757 method))) {
2758 log_error("Could not allocate message.");
2759 return -ENOMEM;
2760 }
2761
2762 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 2763
2764 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2765 /* There's always a fallback possible for
2766 * legacy actions. */
2767 r = 0;
2768 goto finish;
2769 }
2770
7e4249b9
LP		 2771 log_error("Failed to issue method call: %s", error.message);
2772 r = -EIO;
2773 goto finish;
2774 }
2775
e4b61340 2776 r = 1;
7e4249b9
LP		 2777
2778finish:
2779 if (m)
2780 dbus_message_unref(m);
2781
2782 if (reply)
2783 dbus_message_unref(reply);
2784
2785 dbus_error_free(&error);
2786
2787 return r;
2788}
2789
5632e374
LP		 2790static int reset_maintenance(DBusConnection *bus, char **args, unsigned n) {
2791 DBusMessage *m = NULL, *reply = NULL;
2792 unsigned i;
2793 int r;
2794 DBusError error;
2795
2796 assert(bus);
2797 dbus_error_init(&error);
2798
2799 if (n <= 1)
ee5762e3 2800 return daemon_reload(bus, args, n);
5632e374
LP		 2801
2802 for (i = 1; i < n; i++) {
2803
2804 if (!(m = dbus_message_new_method_call(
2805 "org.freedesktop.systemd1",
2806 "/org/freedesktop/systemd1",
2807 "org.freedesktop.systemd1.Manager",
2808 "ResetMaintenanceUnit"))) {
2809 log_error("Could not allocate message.");
2810 r = -ENOMEM;
2811 goto finish;
2812 }
2813
2814 if (!dbus_message_append_args(m,
2815 DBUS_TYPE_STRING, args + i,
2816 DBUS_TYPE_INVALID)) {
2817 log_error("Could not append arguments to message.");
2818 r = -ENOMEM;
2819 goto finish;
2820 }
2821
2822 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2823 log_error("Failed to issue method call: %s", error.message);
2824 r = -EIO;
2825 goto finish;
2826 }
2827
2828 dbus_message_unref(m);
2829 dbus_message_unref(reply);
2830 m = reply = NULL;
2831 }
2832
2833 r = 0;
2834
2835finish:
2836 if (m)
2837 dbus_message_unref(m);
2838
2839 if (reply)
2840 dbus_message_unref(reply);
2841
2842 dbus_error_free(&error);
2843
2844 return r;
2845}
2846
7e4249b9
LP		 2847static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
2848 DBusMessage *m = NULL, *reply = NULL;
2849 DBusError error;
2850 DBusMessageIter iter, sub, sub2;
2851 int r;
2852 const char
2853 *interface = "org.freedesktop.systemd1.Manager",
2854 *property = "Environment";
2855
2856 dbus_error_init(&error);
2857
2858 if (!(m = dbus_message_new_method_call(
2859 "org.freedesktop.systemd1",
2860 "/org/freedesktop/systemd1",
2861 "org.freedesktop.DBus.Properties",
2862 "Get"))) {
2863 log_error("Could not allocate message.");
2864 return -ENOMEM;
2865 }
2866
2867 if (!dbus_message_append_args(m,
2868 DBUS_TYPE_STRING, &interface,
2869 DBUS_TYPE_STRING, &property,
2870 DBUS_TYPE_INVALID)) {
2871 log_error("Could not append arguments to message.");
2872 r = -ENOMEM;
2873 goto finish;
2874 }
2875
2876 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2877 log_error("Failed to issue method call: %s", error.message);
2878 r = -EIO;
2879 goto finish;
2880 }
2881
2882 if (!dbus_message_iter_init(reply, &iter) ||
2883 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2884 log_error("Failed to parse reply.");
2885 r = -EIO;
2886 goto finish;
2887 }
2888
2889 dbus_message_iter_recurse(&iter, &sub);
2890
2891 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
2892 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
2893 log_error("Failed to parse reply.");
2894 r = -EIO;
2895 goto finish;
2896 }
2897
2898 dbus_message_iter_recurse(&sub, &sub2);
2899
2900 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
2901 const char *text;
2902
2903 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
2904 log_error("Failed to parse reply.");
2905 r = -EIO;
2906 goto finish;
2907 }
2908
2909 dbus_message_iter_get_basic(&sub2, &text);
2910 printf("%s\n", text);
2911
2912 dbus_message_iter_next(&sub2);
2913 }
2914
2915 r = 0;
2916
2917finish:
2918 if (m)
2919 dbus_message_unref(m);
2920
2921 if (reply)
2922 dbus_message_unref(reply);
2923
2924 dbus_error_free(&error);
2925
2926 return r;
2927}
2928
2929static int set_environment(DBusConnection *bus, char **args, unsigned n) {
2930 DBusMessage *m = NULL, *reply = NULL;
2931 DBusError error;
2932 int r;
2933 const char *method;
2934 DBusMessageIter iter, sub;
2935 unsigned i;
2936
2937 dbus_error_init(&error);
2938
2939 method = streq(args[0], "set-environment")
2940 ? "SetEnvironment"
2941 : "UnsetEnvironment";
2942
2943 if (!(m = dbus_message_new_method_call(
2944 "org.freedesktop.systemd1",
2945 "/org/freedesktop/systemd1",
2946 "org.freedesktop.systemd1.Manager",
2947 method))) {
2948
2949 log_error("Could not allocate message.");
2950 return -ENOMEM;
2951 }
2952
2953 dbus_message_iter_init_append(m, &iter);
2954
2955 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
2956 log_error("Could not append arguments to message.");
2957 r = -ENOMEM;
2958 goto finish;
2959 }
2960
2961 for (i = 1; i < n; i++)
2962 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
2963 log_error("Could not append arguments to message.");
2964 r = -ENOMEM;
2965 goto finish;
2966 }
2967
2968 if (!dbus_message_iter_close_container(&iter, &sub)) {
2969 log_error("Could not append arguments to message.");
2970 r = -ENOMEM;
2971 goto finish;
2972 }
2973
2974 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2975 log_error("Failed to issue method call: %s", error.message);
2976 r = -EIO;
2977 goto finish;
2978 }
2979
2980 r = 0;
2981
2982finish:
2983 if (m)
2984 dbus_message_unref(m);
2985
2986 if (reply)
2987 dbus_message_unref(reply);
2988
2989 dbus_error_free(&error);
2990
2991 return r;
2992}
2993
ee5762e3
LP		 2994typedef struct {
2995 char *name;
2996 char *path;
2997
2998 char **aliases;
2999 char **wanted_by;
3000} InstallInfo;
3001
3002static Hashmap *will_install = NULL, *have_installed = NULL;
3003static Set *remove_symlinks_to = NULL;
3004
3005static void install_info_free(InstallInfo *i) {
3006 assert(i);
3007
3008 free(i->name);
3009 free(i->path);
3010 strv_free(i->aliases);
3011 strv_free(i->wanted_by);
3012 free(i);
3013}
3014
3015static void install_info_hashmap_free(Hashmap *m) {
3016 InstallInfo *i;
3017
3018 while ((i = hashmap_steal_first(m)))
3019 install_info_free(i);
3020
3021 hashmap_free(m);
3022}
3023
3024static bool unit_name_valid(const char *name) {
3025
3026 /* This is a minimal version of unit_name_valid() from
3027 * unit-name.c */
3028
3029 if (!*name)
3030 return false;
3031
3032 if (ignore_file(name))
3033 return false;
3034
3035 return true;
3036}
3037
3038static int install_info_add(const char *name) {
3039 InstallInfo *i;
3040 int r;
3041
3042 assert(will_install);
3043
3044 if (!unit_name_valid(name))
3045 return -EINVAL;
3046
3047 if (hashmap_get(have_installed, name) ||
3048 hashmap_get(will_install, name))
3049 return 0;
3050
3051 if (!(i = new0(InstallInfo, 1))) {
3052 r = -ENOMEM;
3053 goto fail;
3054 }
3055
3056 if (!(i->name = strdup(name))) {
3057 r = -ENOMEM;
3058 goto fail;
3059 }
3060
3061 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3062 goto fail;
3063
3064 return 0;
3065
3066fail:
3067 if (i)
3068 install_info_free(i);
3069
3070 return r;
3071}
3072
3073static int config_parse_also(
3074 const char *filename,
3075 unsigned line,
3076 const char *section,
3077 const char *lvalue,
3078 const char *rvalue,
3079 void *data,
3080 void *userdata) {
3081
3082 char *w;
3083 size_t l;
3084 char *state;
3085
3086 assert(filename);
3087 assert(lvalue);
3088 assert(rvalue);
3089
3090 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3091 char *n;
3092 int r;
3093
3094 if (!(n = strndup(w, l)))
3095 return -ENOMEM;
3096
3097 r = install_info_add(n);
3098 free(n);
3099
3100 if (r < 0)
3101 return r;
3102 }
3103
3104 return 0;
3105}
3106
3107static int mark_symlink_for_removal(const char *p) {
3108 char *n;
3109 int r;
3110
3111 assert(p);
3112 assert(path_is_absolute(p));
3113
3114 if (!remove_symlinks_to)
3115 return 0;
3116
3117 if (!(n = strdup(p)))
3118 return -ENOMEM;
3119
3120 path_kill_slashes(n);
3121
3122 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3123 free(n);
3124 return r == -EEXIST ? 0 : r;
3125 }
3126
3127 return 0;
3128}
3129
3130static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3131 int r = 0;
3132 DIR *d;
3133 struct dirent *de;
3134
3135 assert(fd >= 0);
3136 assert(root);
3137 assert(deleted);
3138
3139 if (!(d = fdopendir(fd))) {
3140 close_nointr_nofail(fd);
3141 return -errno;
3142 }
3143
3144 rewinddir(d);
3145
3146 while ((de = readdir(d))) {
3147 bool is_dir = false, is_link = false;
3148
3149 if (ignore_file(de->d_name))
3150 continue;
3151
3152 if (de->d_type == DT_LNK)
3153 is_link = true;
3154 else if (de->d_type == DT_DIR)
3155 is_dir = true;
3156 else if (de->d_type == DT_UNKNOWN) {
3157 struct stat st;
3158
3159 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3160 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3161
3162 if (r == 0)
3163 r = -errno;
3164 continue;
3165 }
3166
3167 is_link = S_ISLNK(st.st_mode);
3168 is_dir = S_ISDIR(st.st_mode);
3169 } else
3170 continue;
3171
3172 if (is_dir) {
3173 int nfd, q;
3174 char *p;
3175
3176 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3177 log_error("Failed to open %s/%s: %m", root, de->d_name);
3178
3179 if (r == 0)
3180 r = -errno;
3181 continue;
3182 }
3183
3184 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3185 log_error("Failed to allocate directory string.");
3186 close_nointr_nofail(nfd);
3187 r = -ENOMEM;
3188 break;
3189 }
3190
3191 /* This will close nfd, regardless whether it succeeds or not */
3192 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3193 free(p);
3194
3195 if (r == 0)
e364ad06 3196 r = q;
ee5762e3
LP		 3197
3198 } else if (is_link) {
3199 char *p, *dest, *c;
3200 int q;
3201
3202 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3203 log_error("Failed to allocate symlink string.");
3204 r = -ENOMEM;
3205 break;
3206 }
3207
3208 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3209 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3210 free(p);
3211
3212 if (r == 0)
3213 r = q;
3214 continue;
3215 }
3216
3217 if ((c = canonicalize_file_name(dest))) {
3218 /* This might fail if the destination
3219 * is already removed */
3220
3221 free(dest);
3222 dest = c;
3223 }
3224
3225 path_kill_slashes(dest);
3226 if (set_get(remove_symlinks_to, dest)) {
3227
3228 if (!arg_quiet)
3229 log_info("rm '%s'", p);
3230
3231 if (unlink(p) < 0) {
3232 log_error("Cannot unlink symlink %s: %m", p);
3233
3234 if (r == 0)
3235 r = -errno;
3236 } else {
3237 rmdir_parents(p, config_path);
3238 path_kill_slashes(p);
3239
3240 if (!set_get(remove_symlinks_to, p)) {
3241
3242 if ((r = mark_symlink_for_removal(p)) < 0) {
3243 if (r == 0)
3244 r = q;
3245 } else
3246 *deleted = true;
3247 }
3248 }
3249 }
3250
3251 free(p);
3252 free(dest);
3253 }
3254 }
3255
3256 closedir(d);
3257
3258 return r;
3259}
3260
3261static int remove_marked_symlinks(const char *config_path) {
3262 int fd, r = 0;
3263 bool deleted;
3264
3265 assert(config_path);
3266
3267 if (set_size(remove_symlinks_to) <= 0)
3268 return 0;
3269
3270 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3271 return -errno;
3272
3273 do {
3274 int q, cfd;
3275 deleted = false;
3276
3277 if ((cfd = dup(fd)) < 0) {
3278 r = -errno;
3279 break;
3280 }
3281
3282 /* This takes possession of cfd and closes it */
3283 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3284 if (r == 0)
3285 r = q;
3286 }
3287 } while (deleted);
3288
3289 close_nointr_nofail(fd);
3290
3291 return r;
3292}
3293
3294static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3295 int r;
3296
3297 assert(old_path);
3298 assert(new_path);
3299 assert(verb);
3300
3301 if (streq(verb, "enable")) {
3302 char *dest;
3303
3304 mkdir_parents(new_path, 0755);
3305
3306 if (symlink(old_path, new_path) >= 0) {
3307
3308 if (!arg_quiet)
3309 log_info("ln -s '%s' '%s'", old_path, new_path);
3310
3311 return 0;
3312 }
3313
3314 if (errno != EEXIST) {
3315 log_error("Cannot link %s to %s: %m", old_path, new_path);
3316 return -errno;
3317 }
3318
3319 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3320
3321 if (errno == EINVAL) {
3322 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3323 return -EEXIST;
3324 }
3325
3326 log_error("readlink() failed: %s", strerror(-r));
3327 return r;
3328 }
3329
3330 if (streq(dest, old_path)) {
3331 free(dest);
3332 return 0;
3333 }
3334
3335 if (!arg_force) {
3336 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3337 free(dest);
3338 return -EEXIST;
3339 }
3340
3341 free(dest);
3342 unlink(new_path);
3343
3344 if (!arg_quiet)
3345 log_info("ln -s '%s' '%s'", old_path, new_path);
3346
3347 if (symlink(old_path, new_path) >= 0)
3348 return 0;
3349
3350 log_error("Cannot link %s to %s: %m", old_path, new_path);
3351 return -errno;
3352
3353 } else if (streq(verb, "disable")) {
3354 char *dest;
3355
3356 if ((r = mark_symlink_for_removal(old_path)) < 0)
3357 return r;
3358
3359 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3360 if (errno == ENOENT)
3361 return 0;
3362
3363 if (errno == EINVAL) {
3364 log_warning("File %s not a symlink, ignoring.", old_path);
3365 return 0;
3366 }
3367
3368 log_error("readlink() failed: %s", strerror(-r));
3369 return r;
3370 }
3371
3372 if (!streq(dest, old_path)) {
3373 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3374 free(dest);
3375 return 0;
3376 }
3377
3378 free(dest);
3379
3380 if ((r = mark_symlink_for_removal(new_path)) < 0)
3381 return r;
3382
3383 if (!arg_quiet)
3384 log_info("rm '%s'", new_path);
3385
3386 if (unlink(new_path) >= 0)
3387 return 0;
3388
3389 log_error("Cannot unlink %s: %m", new_path);
3390 return -errno;
3391
3392 } else if (streq(verb, "is-enabled")) {
3393 char *dest;
3394
3395 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3396
3397 if (errno == ENOENT || errno == EINVAL)
3398 return 0;
3399
3400 log_error("readlink() failed: %s", strerror(-r));
3401 return r;
3402 }
3403
3404 if (streq(dest, old_path)) {
3405 free(dest);
3406 return 1;
3407 }
3408
3409 return 0;
3410 }
3411
3412 assert_not_reached("Unknown action.");
3413}
3414
3415static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3416 char **s;
3417 char *alias_path = NULL;
3418 int r;
3419
3420 assert(verb);
3421 assert(i);
3422 assert(config_path);
3423
3424 STRV_FOREACH(s, i->aliases) {
3425
3426 if (!unit_name_valid(*s)) {
3427 log_error("Invalid name %s.", *s);
3428 r = -EINVAL;
3429 goto finish;
3430 }
3431
3432 free(alias_path);
3433 if (!(alias_path = path_make_absolute(*s, config_path))) {
3434 log_error("Out of memory");
3435 r = -ENOMEM;
3436 goto finish;
3437 }
3438
3439 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3440 goto finish;
3441
3442 if (streq(verb, "disable"))
3443 rmdir_parents(alias_path, config_path);
3444 }
3445
3446 r = 0;
3447
3448finish:
3449 free(alias_path);
3450
3451 return r;
3452}
3453
3454static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3455 char **s;
3456 char *alias_path = NULL;
3457 int r;
3458
3459 assert(verb);
3460 assert(i);
3461 assert(config_path);
3462
3463 STRV_FOREACH(s, i->wanted_by) {
3464 if (!unit_name_valid(*s)) {
3465 log_error("Invalid name %s.", *s);
3466 r = -EINVAL;
3467 goto finish;
3468 }
3469
3470 free(alias_path);
3471 alias_path = NULL;
3472
3473 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3474 log_error("Out of memory");
3475 r = -ENOMEM;
3476 goto finish;
3477 }
3478
3479 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3480 goto finish;
3481
3482 if (streq(verb, "disable"))
3483 rmdir_parents(alias_path, config_path);
3484 }
3485
3486 r = 0;
3487
3488finish:
3489 free(alias_path);
3490
3491 return r;
3492}
3493
3494static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3495
3496 const ConfigItem items[] = {
3497 { "Alias", config_parse_strv, &i->aliases, "Install" },
3498 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3499 { "Also", config_parse_also, NULL, "Install" },
3500
3501 { NULL, NULL, NULL, NULL }
3502 };
3503
3504 char **p;
3505 char *filename = NULL;
3506 FILE *f = NULL;
3507 int r;
3508
3509 assert(paths);
3510 assert(i);
3511
3512 STRV_FOREACH(p, paths->unit_path) {
3513 int fd;
3514
3515 if (!(filename = path_make_absolute(i->name, *p))) {
3516 log_error("Out of memory");
3517 return -ENOMEM;
3518 }
3519
3520 /* Ensure that we don't follow symlinks */
3521 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3522 if ((f = fdopen(fd, "re")))
3523 break;
3524
3525 if (errno == ELOOP) {
3526 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3527 free(filename);
3528 return -errno;
3529 }
3530
3531 if (errno != ENOENT) {
3532 log_error("Failed to open %s: %m", filename);
3533 free(filename);
3534 return -errno;
3535 }
3536
3537 free(filename);
3538 filename = NULL;
3539 }
3540
3541 if (!f) {
3542 log_error("Couldn't find %s.", i->name);
3543 return -ENOENT;
3544 }
3545
3546 i->path = filename;
3547
3548 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3549 fclose(f);
3550 return r;
3551 }
3552
3553 fclose(f);
3554
3555 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3556 return r;
3557
3558 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3559 return r;
3560
3561 if ((r = mark_symlink_for_removal(filename)) < 0)
3562 return r;
3563
3564 if ((r = remove_marked_symlinks(config_path)) < 0)
3565 return r;
3566
3567 return 0;
3568}
3569
3570static char *get_config_path(void) {
3571
3572 if (arg_session && arg_global)
3573 return strdup(SESSION_CONFIG_UNIT_PATH);
3574
3575 if (arg_session) {
3576 char *p;
3577
3578 if (session_config_home(&p) < 0)
3579 return NULL;
3580
3581 return p;
3582 }
3583
3584 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3585}
3586
3587static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3588 DBusError error;
3589 int r;
3590 LookupPaths paths;
3591 char *config_path = NULL;
3592 unsigned j;
3593 InstallInfo *i;
3594 const char *verb = args[0];
3595
3596 dbus_error_init(&error);
3597
3598 zero(paths);
3599 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3600 log_error("Failed to determine lookup paths: %s", strerror(-r));
3601 goto finish;
3602 }
3603
3604 if (!(config_path = get_config_path())) {
3605 log_error("Failed to determine config path");
3606 r = -ENOMEM;
3607 goto finish;
3608 }
3609
3610 will_install = hashmap_new(string_hash_func, string_compare_func);
3611 have_installed = hashmap_new(string_hash_func, string_compare_func);
3612
3613 if (!will_install || !have_installed) {
3614 log_error("Failed to allocate unit sets.");
3615 r = -ENOMEM;
3616 goto finish;
3617 }
3618
3619 if (!arg_defaults && streq(verb, "disable"))
3620 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3621 log_error("Failed to allocate symlink sets.");
3622 r = -ENOMEM;
3623 goto finish;
3624 }
3625
3626 for (j = 1; j < n; j++)
3627 if ((r = install_info_add(args[j])) < 0)
3628 goto finish;
3629
3630 while ((i = hashmap_first(will_install))) {
3631 int q;
3632
3633 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3634
3635 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3636
3637 if (q < 0) {
3638 if (r == 0)
3639 r = q;
3640 goto finish;
3641 }
3642
3643 /* In test mode and found something */
3644 r = 1;
3645 break;
3646 }
3647 }
3648
3649 if (streq(verb, "is-enabled"))
3650 r = r > 0 ? 0 : -ENOENT;
3651 else if (bus &&
3652 /* Don't try to reload anything if the user asked us to not do this */
3653 !arg_no_reload &&
3654 /* Don't try to reload anything when updating a unit globally */
3655 !arg_global &&
3656 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3657 (arg_session || sd_booted() > 0) &&
3658 /* Don't try to reload anything if we are running in a chroot environment */
3659 (arg_session || running_in_chroot() <= 0) ) {
3660 int q;
3661
3662 if ((q = daemon_reload(bus, args, n)) < 0)
3663 r = q;
3664 }
3665
3666finish:
3667 install_info_hashmap_free(will_install);
3668 install_info_hashmap_free(have_installed);
3669
3670 set_free_free(remove_symlinks_to);
3671
3672 lookup_paths_free(&paths);
3673
3674 free(config_path);
3675
3676 return r;
3677}
3678
e4b61340 3679static int systemctl_help(void) {
7e4249b9 3680
2e33c433 3681 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 3682 "Send control commands to or query the systemd manager.\n\n"
48220598
LP		 3683 " -h --help Show this help\n"
3684 " -t --type=TYPE List only units of a particular type\n"
393a2f9b 3685 " -p --property=NAME Show only properties by this name\n"
48220598 3686 " -a --all Show all units/properties, including dead/empty ones\n"
ee5762e3
LP		 3687 " --full Don't ellipsize unit names on output\n"
3688 " --fail When queueing a new job, fail if conflicting jobs are\n"
6f28c033 3689 " pending\n"
ee5762e3
LP		 3690 " -q --quiet Suppress output\n"
3691 " --no-block Do not wait until operation finished\n"
48220598
LP		 3692 " --system Connect to system bus\n"
3693 " --session Connect to session bus\n"
4445a875 3694 " --order When generating graph for dot, show only order\n"
ee5762e3
LP		 3695 " --require When generating graph for dot, show only requirement\n"
3696 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3697 " --global Enable/disable unit files globally\n"
3698 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3699 " configuration\n"
3700 " --force When enabling unit files, override existing symlinks\n"
3701 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 3702 "Commands:\n"
3703 " list-units List units\n"
ee5762e3
LP		 3704 " start [NAME...] Start (activate) one or more units\n"
3705 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 3706 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 3707 " restart [NAME...] Start or restart one or more units\n"
3708 " try-restart [NAME...] Restart one or more units if active\n"
3709 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3710 " otherwise start or restart\n"
3711 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3712 " otherwise restart if active\n"
7e4249b9 3713 " isolate [NAME] Start one unit and stop all others\n"
ee5762e3 3714 " is-active [NAME...] Check whether units are active\n"
75676b72 3715 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 3716 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3
LP		 3717 " units/jobs or the manager\n"
3718 " reset-maintenance [NAME...] Reset maintenance state for all, one,\n"
5632e374 3719 " or more units\n"
ee5762e3
LP		 3720 " enable [NAME...] Enable one or more unit files\n"
3721 " disable [NAME...] Disable one or more unit files\n"
3722 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 3723 " load [NAME...] Load one or more units\n"
3724 " list-jobs List jobs\n"
ee5762e3 3725 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 3726 " monitor Monitor unit/job changes\n"
3727 " dump Dump server status\n"
4445a875 3728 " dot Dump dependency graph for dot(1)\n"
7e4249b9 3729 " snapshot [NAME] Create a snapshot\n"
6759e7a7 3730 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 3731 " daemon-reload Reload systemd manager configuration\n"
3732 " daemon-reexec Reexecute systemd manager\n"
3733 " daemon-exit Ask the systemd manager to quit\n"
7e4249b9
LP		 3734 " show-environment Dump environment\n"
3735 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5
LP		 3736 " unset-environment [NAME...] Unset one or more environment variables\n"
3737 " halt Shut down and halt the system\n"
2e33c433 3738 " poweroff Shut down and power-off the system\n"
514f4ef5 3739 " reboot Shut down and reboot the system\n"
6f28c033
LP		 3740 " rescue Enter system rescue mode\n"
3741 " emergency Enter system emergency mode\n"
3742 " default Enter system default mode\n",
5b6319dc 3743 program_invocation_short_name);
7e4249b9
LP		 3744
3745 return 0;
3746}
3747
e4b61340
LP		 3748static int halt_help(void) {
3749
2e33c433 3750 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3751 "%s the system.\n\n"
3752 " --help Show this help\n"
3753 " --halt Halt the machine\n"
3754 " -p --poweroff Switch off the machine\n"
3755 " --reboot Reboot the machine\n"
2e33c433
LP		 3756 " -f --force Force immediate halt/power-off/reboot\n"
3757 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 3758 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 3759 " -n --no-sync Don't sync before halt/power-off/reboot\n"
3760 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 3761 program_invocation_short_name,
3762 arg_action == ACTION_REBOOT ? "Reboot" :
3763 arg_action == ACTION_POWEROFF ? "Power off" :
3764 "Halt");
3765
3766 return 0;
3767}
3768
3769static int shutdown_help(void) {
3770
2e33c433 3771 printf("%s [OPTIONS...] [now] [WALL...]\n\n"
e4b61340
LP		 3772 "Shut down the system.\n\n"
3773 " --help Show this help\n"
3774 " -H --halt Halt the machine\n"
3775 " -P --poweroff Power-off the machine\n"
3776 " -r --reboot Reboot the machine\n"
3777 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433
LP		 3778 " -k Don't halt/power-off/reboot, just send warnings\n"
3779 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 3780 program_invocation_short_name);
3781
3782 return 0;
3783}
3784
3785static int telinit_help(void) {
3786
2e33c433 3787 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 3788 "Send control commands to the init daemon.\n\n"
3789 " --help Show this help\n"
2e33c433 3790 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 3791 "Commands:\n"
3792 " 0 Power-off the machine\n"
3793 " 6 Reboot the machine\n"
514f4ef5
LP		 3794 " 2, 3, 4, 5 Start runlevelX.target unit\n"
3795 " 1, s, S Enter rescue mode\n"
3796 " q, Q Reload init daemon configuration\n"
3797 " u, U Reexecute init daemon\n",
e4b61340
LP		 3798 program_invocation_short_name);
3799
3800 return 0;
3801}
3802
3803static int runlevel_help(void) {
3804
2e33c433 3805 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 3806 "Prints the previous and current runlevel of the init system.\n\n"
3807 " --help Show this help\n",
3808 program_invocation_short_name);
3809
3810 return 0;
3811}
3812
3813static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 3814
3815 enum {
90d473a1 3816 ARG_FAIL = 0x100,
7e4249b9
LP		 3817 ARG_SESSION,
3818 ARG_SYSTEM,
ee5762e3 3819 ARG_GLOBAL,
6e905d93 3820 ARG_NO_BLOCK,
4445a875
LP		 3821 ARG_NO_WALL,
3822 ARG_ORDER,
8fe914ec 3823 ARG_REQUIRE,
ee5762e3
LP		 3824 ARG_FULL,
3825 ARG_FORCE,
3826 ARG_NO_RELOAD,
3827 ARG_DEFAULTS
7e4249b9
LP		 3828 };
3829
3830 static const struct option options[] = {
ee5762e3
LP		 3831 { "help", no_argument, NULL, 'h' },
3832 { "type", required_argument, NULL, 't' },
3833 { "property", required_argument, NULL, 'p' },
3834 { "all", no_argument, NULL, 'a' },
3835 { "full", no_argument, NULL, ARG_FULL },
3836 { "fail", no_argument, NULL, ARG_FAIL },
3837 { "session", no_argument, NULL, ARG_SESSION },
3838 { "system", no_argument, NULL, ARG_SYSTEM },
3839 { "global", no_argument, NULL, ARG_GLOBAL },
3840 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
3841 { "no-wall", no_argument, NULL, ARG_NO_WALL },
3842 { "quiet", no_argument, NULL, 'q' },
3843 { "order", no_argument, NULL, ARG_ORDER },
3844 { "require", no_argument, NULL, ARG_REQUIRE },
3845 { "force", no_argument, NULL, ARG_FORCE },
3846 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
3847 { "defaults", no_argument, NULL, ARG_DEFAULTS },
3848 { NULL, 0, NULL, 0 }
7e4249b9
LP		 3849 };
3850
3851 int c;
3852
e4b61340 3853 assert(argc >= 0);
7e4249b9
LP		 3854 assert(argv);
3855
48220598 3856 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
7e4249b9
LP		 3857
3858 switch (c) {
3859
3860 case 'h':
e4b61340 3861 systemctl_help();
7e4249b9
LP		 3862 return 0;
3863
3864 case 't':
3865 arg_type = optarg;
3866 break;
3867
ea4a240d
LP		 3868 case 'p': {
3869 char **l;
3870
3871 if (!(l = strv_append(arg_property, optarg)))
3872 return -ENOMEM;
3873
3874 strv_free(arg_property);
3875 arg_property = l;
48220598
LP		 3876
3877 /* If the user asked for a particular
3878 * property, show it to him, even if it is
3879 * empty. */
3880 arg_all = true;
3881 break;
ea4a240d 3882 }
48220598 3883
7e4249b9
LP		 3884 case 'a':
3885 arg_all = true;
3886 break;
3887
90d473a1
LP		 3888 case ARG_FAIL:
3889 arg_fail = true;
7e4249b9
LP		 3890 break;
3891
3892 case ARG_SESSION:
3893 arg_session = true;
3894 break;
3895
3896 case ARG_SYSTEM:
3897 arg_session = false;
3898 break;
3899
6e905d93
LP		 3900 case ARG_NO_BLOCK:
3901 arg_no_block = true;
7e4249b9
LP		 3902 break;
3903
514f4ef5
LP		 3904 case ARG_NO_WALL:
3905 arg_no_wall = true;
3906 break;
3907
4445a875
LP		 3908 case ARG_ORDER:
3909 arg_dot = DOT_ORDER;
3910 break;
3911
3912 case ARG_REQUIRE:
3913 arg_dot = DOT_REQUIRE;
3914 break;
3915
8fe914ec
LP		 3916 case ARG_FULL:
3917 arg_full = true;
3918 break;
3919
0183528f
LP		 3920 case 'q':
3921 arg_quiet = true;
3922 break;
3923
ee5762e3
LP		 3924 case ARG_FORCE:
3925 arg_force = true;
3926 break;
3927
3928 case ARG_NO_RELOAD:
3929 arg_no_reload = true;
3930 break;
3931
3932 case ARG_GLOBAL:
3933 arg_global = true;
3934 arg_session = true;
3935 break;
3936
3937 case ARG_DEFAULTS:
3938 arg_defaults = true;
3939 break;
3940
7e4249b9
LP		 3941 case '?':
3942 return -EINVAL;
3943
3944 default:
3945 log_error("Unknown option code %c", c);
3946 return -EINVAL;
3947 }
3948 }
3949
3950 return 1;
3951}
3952
e4b61340
LP		 3953static int halt_parse_argv(int argc, char *argv[]) {
3954
3955 enum {
3956 ARG_HELP = 0x100,
3957 ARG_HALT,
514f4ef5
LP		 3958 ARG_REBOOT,
3959 ARG_NO_WALL
e4b61340
LP		 3960 };
3961
3962 static const struct option options[] = {
3963 { "help", no_argument, NULL, ARG_HELP },
3964 { "halt", no_argument, NULL, ARG_HALT },
3965 { "poweroff", no_argument, NULL, 'p' },
3966 { "reboot", no_argument, NULL, ARG_REBOOT },
3967 { "force", no_argument, NULL, 'f' },
3968 { "wtmp-only", no_argument, NULL, 'w' },
3969 { "no-wtmp", no_argument, NULL, 'd' },
3970 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 3971 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 3972 { NULL, 0, NULL, 0 }
3973 };
3974
3975 int c, runlevel;
3976
3977 assert(argc >= 0);
3978 assert(argv);
3979
3980 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
3981 if (runlevel == '0' || runlevel == '6')
3982 arg_immediate = true;
3983
3984 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
3985 switch (c) {
3986
3987 case ARG_HELP:
3988 halt_help();
3989 return 0;
3990
3991 case ARG_HALT:
3992 arg_action = ACTION_HALT;
3993 break;
3994
3995 case 'p':
a042efad
MS		 3996 if (arg_action != ACTION_REBOOT)
3997 arg_action = ACTION_POWEROFF;
e4b61340
LP		 3998 break;
3999
4000 case ARG_REBOOT:
4001 arg_action = ACTION_REBOOT;
4002 break;
4003
4004 case 'f':
4005 arg_immediate = true;
4006 break;
4007
4008 case 'w':
4009 arg_dry = true;
4010 break;
4011
4012 case 'd':
4013 arg_no_wtmp = true;
4014 break;
4015
4016 case 'n':
4017 arg_no_sync = true;
4018 break;
4019
514f4ef5
LP		 4020 case ARG_NO_WALL:
4021 arg_no_wall = true;
4022 break;
4023
e4b61340
LP		 4024 case 'i':
4025 case 'h':
4026 /* Compatibility nops */
4027 break;
4028
4029 case '?':
4030 return -EINVAL;
4031
4032 default:
4033 log_error("Unknown option code %c", c);
4034 return -EINVAL;
4035 }
4036 }
4037
4038 if (optind < argc) {
4039 log_error("Too many arguments.");
4040 return -EINVAL;
4041 }
4042
4043 return 1;
4044}
4045
4046static int shutdown_parse_argv(int argc, char *argv[]) {
4047
4048 enum {
4049 ARG_HELP = 0x100,
514f4ef5 4050 ARG_NO_WALL
e4b61340
LP		 4051 };
4052
4053 static const struct option options[] = {
4054 { "help", no_argument, NULL, ARG_HELP },
4055 { "halt", no_argument, NULL, 'H' },
4056 { "poweroff", no_argument, NULL, 'P' },
4057 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4058 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4059 { NULL, 0, NULL, 0 }
4060 };
4061
4062 int c;
4063
4064 assert(argc >= 0);
4065 assert(argv);
4066
4067 while ((c = getopt_long(argc, argv, "HPrhkt:a", options, NULL)) >= 0) {
4068 switch (c) {
4069
4070 case ARG_HELP:
4071 shutdown_help();
4072 return 0;
4073
4074 case 'H':
4075 arg_action = ACTION_HALT;
4076 break;
4077
4078 case 'P':
4079 arg_action = ACTION_POWEROFF;
4080 break;
4081
4082 case 'r':
4083 arg_action = ACTION_REBOOT;
4084 break;
4085
4086 case 'h':
4087 if (arg_action != ACTION_HALT)
4088 arg_action = ACTION_POWEROFF;
4089 break;
4090
4091 case 'k':
4092 arg_dry = true;
4093 break;
4094
514f4ef5
LP		 4095 case ARG_NO_WALL:
4096 arg_no_wall = true;
4097 break;
4098
e4b61340
LP		 4099 case 't':
4100 case 'a':
4101 /* Compatibility nops */
4102 break;
4103
4104 case '?':
4105 return -EINVAL;
4106
4107 default:
4108 log_error("Unknown option code %c", c);
4109 return -EINVAL;
4110 }
4111 }
4112
4545812f
LP		 4113 if (argc > optind && !streq(argv[optind], "now"))
4114 log_warning("First argument '%s' isn't 'now'. Ignoring.", argv[optind]);
442b9094 4115
e4b61340
LP		 4116 /* We ignore the time argument */
4117 if (argc > optind + 1)
4118 arg_wall = argv + optind + 1;
4119
4120 optind = argc;
4121
4122 return 1;
e4b61340
LP		 4123}
4124
4125static int telinit_parse_argv(int argc, char *argv[]) {
4126
4127 enum {
4128 ARG_HELP = 0x100,
514f4ef5 4129 ARG_NO_WALL
e4b61340
LP		 4130 };
4131
4132 static const struct option options[] = {
4133 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4134 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4135 { NULL, 0, NULL, 0 }
4136 };
4137
4138 static const struct {
4139 char from;
4140 enum action to;
4141 } table[] = {
4142 { '0', ACTION_POWEROFF },
4143 { '6', ACTION_REBOOT },
ef2f1067 4144 { '1', ACTION_RESCUE },
e4b61340
LP		 4145 { '2', ACTION_RUNLEVEL2 },
4146 { '3', ACTION_RUNLEVEL3 },
4147 { '4', ACTION_RUNLEVEL4 },
4148 { '5', ACTION_RUNLEVEL5 },
4149 { 's', ACTION_RESCUE },
4150 { 'S', ACTION_RESCUE },
4151 { 'q', ACTION_RELOAD },
4152 { 'Q', ACTION_RELOAD },
4153 { 'u', ACTION_REEXEC },
4154 { 'U', ACTION_REEXEC }
4155 };
4156
4157 unsigned i;
4158 int c;
4159
4160 assert(argc >= 0);
4161 assert(argv);
4162
4163 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4164 switch (c) {
4165
4166 case ARG_HELP:
4167 telinit_help();
4168 return 0;
4169
514f4ef5
LP		 4170 case ARG_NO_WALL:
4171 arg_no_wall = true;
4172 break;
4173
e4b61340
LP		 4174 case '?':
4175 return -EINVAL;
4176
4177 default:
4178 log_error("Unknown option code %c", c);
4179 return -EINVAL;
4180 }
4181 }
4182
4183 if (optind >= argc) {
2f02ce40 4184 telinit_help();
e4b61340
LP		 4185 return -EINVAL;
4186 }
4187
4188 if (optind + 1 < argc) {
4189 log_error("Too many arguments.");
4190 return -EINVAL;
4191 }
4192
4193 if (strlen(argv[optind]) != 1) {
4194 log_error("Expected single character argument.");
4195 return -EINVAL;
4196 }
4197
4198 for (i = 0; i < ELEMENTSOF(table); i++)
4199 if (table[i].from == argv[optind][0])
4200 break;
4201
4202 if (i >= ELEMENTSOF(table)) {
4203 log_error("Unknown command %s.", argv[optind]);
4204 return -EINVAL;
4205 }
4206
4207 arg_action = table[i].to;
4208
4209 optind ++;
4210
4211 return 1;
4212}
4213
4214static int runlevel_parse_argv(int argc, char *argv[]) {
4215
4216 enum {
4217 ARG_HELP = 0x100,
4218 };
4219
4220 static const struct option options[] = {
4221 { "help", no_argument, NULL, ARG_HELP },
4222 { NULL, 0, NULL, 0 }
4223 };
4224
4225 int c;
4226
4227 assert(argc >= 0);
4228 assert(argv);
4229
4230 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4231 switch (c) {
4232
4233 case ARG_HELP:
4234 runlevel_help();
4235 return 0;
4236
4237 case '?':
4238 return -EINVAL;
4239
4240 default:
4241 log_error("Unknown option code %c", c);
4242 return -EINVAL;
4243 }
4244 }
4245
4246 if (optind < argc) {
4247 log_error("Too many arguments.");
4248 return -EINVAL;
4249 }
4250
4251 return 1;
4252}
4253
4254static int parse_argv(int argc, char *argv[]) {
4255 assert(argc >= 0);
4256 assert(argv);
4257
4258 if (program_invocation_short_name) {
4259
4260 if (strstr(program_invocation_short_name, "halt")) {
4261 arg_action = ACTION_HALT;
4262 return halt_parse_argv(argc, argv);
4263 } else if (strstr(program_invocation_short_name, "poweroff")) {
4264 arg_action = ACTION_POWEROFF;
4265 return halt_parse_argv(argc, argv);
4266 } else if (strstr(program_invocation_short_name, "reboot")) {
4267 arg_action = ACTION_REBOOT;
4268 return halt_parse_argv(argc, argv);
4269 } else if (strstr(program_invocation_short_name, "shutdown")) {
4270 arg_action = ACTION_POWEROFF;
4271 return shutdown_parse_argv(argc, argv);
4272 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4273
4274 if (sd_booted() > 0) {
4275 arg_action = ACTION_INVALID;
4276 return telinit_parse_argv(argc, argv);
4277 } else {
4278 /* Hmm, so some other init system is
4279 * running, we need to forward this
4280 * request to it. For now we simply
4281 * guess that it is Upstart. */
4282
4283 execv("/lib/upstart/telinit", argv);
4284
4285 log_error("Couldn't find an alternative telinit implementation to spawn.");
4286 return -EIO;
4287 }
4288
e4b61340
LP		 4289 } else if (strstr(program_invocation_short_name, "runlevel")) {
4290 arg_action = ACTION_RUNLEVEL;
4291 return runlevel_parse_argv(argc, argv);
4292 }
4293 }
4294
4295 arg_action = ACTION_SYSTEMCTL;
4296 return systemctl_parse_argv(argc, argv);
4297}
4298
d55ae9e6 4299static int action_to_runlevel(void) {
eb22ac37
LP		 4300
4301 static const char table[_ACTION_MAX] = {
4302 [ACTION_HALT] = '0',
4303 [ACTION_POWEROFF] = '0',
4304 [ACTION_REBOOT] = '6',
4305 [ACTION_RUNLEVEL2] = '2',
4306 [ACTION_RUNLEVEL3] = '3',
4307 [ACTION_RUNLEVEL4] = '4',
4308 [ACTION_RUNLEVEL5] = '5',
4309 [ACTION_RESCUE] = '1'
4310 };
4311
d55ae9e6
LP		 4312 assert(arg_action < _ACTION_MAX);
4313
4314 return table[arg_action];
4315}
4316
f1c5860b 4317static int talk_upstart(void) {
d55ae9e6
LP		 4318 DBusMessage *m = NULL, *reply = NULL;
4319 DBusError error;
4320 int previous, rl, r;
4321 char
4322 env1_buf[] = "RUNLEVEL=X",
4323 env2_buf[] = "PREVLEVEL=X";
4324 char *env1 = env1_buf, *env2 = env2_buf;
4325 const char *emit = "runlevel";
4326 dbus_bool_t b_false = FALSE;
4327 DBusMessageIter iter, sub;
f1c5860b 4328 DBusConnection *bus;
d55ae9e6
LP		 4329
4330 dbus_error_init(&error);
4331
4332 if (!(rl = action_to_runlevel()))
4333 return 0;
4334
4335 if (utmp_get_runlevel(&previous, NULL) < 0)
4336 previous = 'N';
4337
b574246b 4338 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4339 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4340 r = 0;
4341 goto finish;
4342 }
4343
4344 log_error("Failed to connect to Upstart bus: %s", error.message);
4345 r = -EIO;
4346 goto finish;
4347 }
4348
4349 if ((r = bus_check_peercred(bus)) < 0) {
4350 log_error("Failed to verify owner of bus.");
4351 goto finish;
4352 }
4353
d55ae9e6
LP		 4354 if (!(m = dbus_message_new_method_call(
4355 "com.ubuntu.Upstart",
4356 "/com/ubuntu/Upstart",
4357 "com.ubuntu.Upstart0_6",
4358 "EmitEvent"))) {
4359
4360 log_error("Could not allocate message.");
f1c5860b
LP		 4361 r = -ENOMEM;
4362 goto finish;
d55ae9e6
LP		 4363 }
4364
4365 dbus_message_iter_init_append(m, &iter);
4366
4367 env1_buf[sizeof(env1_buf)-2] = rl;
4368 env2_buf[sizeof(env2_buf)-2] = previous;
4369
4370 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4371 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4372 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4373 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4374 !dbus_message_iter_close_container(&iter, &sub) ||
4375 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4376 log_error("Could not append arguments to message.");
4377 r = -ENOMEM;
4378 goto finish;
4379 }
4380
4381 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4382
4383 if (error_is_no_service(&error)) {
4384 r = 0;
4385 goto finish;
4386 }
4387
4388 log_error("Failed to issue method call: %s", error.message);
4389 r = -EIO;
4390 goto finish;
4391 }
4392
4393 r = 1;
4394
4395finish:
4396 if (m)
4397 dbus_message_unref(m);
4398
4399 if (reply)
4400 dbus_message_unref(reply);
4401
b574246b
LP		 4402 if (bus) {
4403 dbus_connection_close(bus);
f1c5860b 4404 dbus_connection_unref(bus);
b574246b 4405 }
f1c5860b 4406
d55ae9e6
LP		 4407 dbus_error_free(&error);
4408
4409 return r;
4410}
4411
4412static int talk_initctl(void) {
eb22ac37
LP		 4413 struct init_request request;
4414 int r, fd;
d55ae9e6 4415 char rl;
eb22ac37 4416
d55ae9e6 4417 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4418 return 0;
4419
4420 zero(request);
4421 request.magic = INIT_MAGIC;
4422 request.sleeptime = 0;
4423 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4424 request.runlevel = rl;
4425
4426 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4427
4428 if (errno == ENOENT)
4429 return 0;
eb22ac37 4430
d55ae9e6 4431 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4432 return -errno;
d55ae9e6 4433 }
eb22ac37 4434
d55ae9e6 4435 errno = 0;
eb22ac37
LP		 4436 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4437 close_nointr_nofail(fd);
4438
d55ae9e6
LP		 4439 if (r < 0) {
4440 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 4441 return errno ? -errno : -EIO;
d55ae9e6 4442 }
eb22ac37
LP		 4443
4444 return 1;
e4b61340
LP		 4445}
4446
ee5762e3 4447static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 4448
7e4249b9
LP		 4449 static const struct {
4450 const char* verb;
4451 const enum {
4452 MORE,
4453 LESS,
4454 EQUAL
4455 } argc_cmp;
4456 const int argc;
4457 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4458 } verbs[] = {
ee5762e3
LP		 4459 { "list-units", LESS, 1, list_units },
4460 { "list-jobs", EQUAL, 1, list_jobs },
4461 { "clear-jobs", EQUAL, 1, daemon_reload },
4462 { "load", MORE, 2, load_unit },
4463 { "cancel", MORE, 2, cancel_job },
4464 { "start", MORE, 2, start_unit },
4465 { "stop", MORE, 2, start_unit },
4466 { "reload", MORE, 2, start_unit },
4467 { "restart", MORE, 2, start_unit },
4468 { "try-restart", MORE, 2, start_unit },
4469 { "reload-or-restart", MORE, 2, start_unit },
4470 { "reload-or-try-restart", MORE, 2, start_unit },
4471 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4472 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4473 { "isolate", EQUAL, 2, start_unit },
4474 { "is-active", MORE, 2, check_unit },
4475 { "check", MORE, 2, check_unit },
4476 { "show", MORE, 1, show },
4477 { "status", MORE, 2, show },
4478 { "monitor", EQUAL, 1, monitor },
4479 { "dump", EQUAL, 1, dump },
4480 { "dot", EQUAL, 1, dot },
4481 { "snapshot", LESS, 2, snapshot },
4482 { "delete", MORE, 2, delete_snapshot },
4483 { "daemon-reload", EQUAL, 1, daemon_reload },
4484 { "daemon-reexec", EQUAL, 1, daemon_reload },
4485 { "daemon-exit", EQUAL, 1, daemon_reload },
4486 { "show-environment", EQUAL, 1, show_enviroment },
4487 { "set-environment", MORE, 2, set_environment },
4488 { "unset-environment", MORE, 2, set_environment },
4489 { "halt", EQUAL, 1, start_special },
4490 { "poweroff", EQUAL, 1, start_special },
4491 { "reboot", EQUAL, 1, start_special },
4492 { "default", EQUAL, 1, start_special },
4493 { "rescue", EQUAL, 1, start_special },
4494 { "emergency", EQUAL, 1, start_special },
4495 { "reset-maintenance", MORE, 1, reset_maintenance },
4496 { "enable", MORE, 2, enable_unit },
4497 { "disable", MORE, 2, enable_unit },
4498 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 4499 };
4500
e4b61340 4501 int left;
7e4249b9 4502 unsigned i;
7e4249b9 4503
e4b61340
LP		 4504 assert(argc >= 0);
4505 assert(argv);
ee5762e3 4506 assert(error);
7e4249b9
LP		 4507
4508 left = argc - optind;
4509
4510 if (left <= 0)
4511 /* Special rule: no arguments means "list-units" */
4512 i = 0;
4513 else {
0183528f
LP		 4514 if (streq(argv[optind], "help")) {
4515 systemctl_help();
4516 return 0;
4517 }
4518
7e4249b9
LP		 4519 for (i = 0; i < ELEMENTSOF(verbs); i++)
4520 if (streq(argv[optind], verbs[i].verb))
4521 break;
4522
4523 if (i >= ELEMENTSOF(verbs)) {
4524 log_error("Unknown operation %s", argv[optind]);
e4b61340 4525 return -EINVAL;
7e4249b9
LP		 4526 }
4527 }
4528
4529 switch (verbs[i].argc_cmp) {
4530
4531 case EQUAL:
4532 if (left != verbs[i].argc) {
4533 log_error("Invalid number of arguments.");
e4b61340 4534 return -EINVAL;
7e4249b9
LP		 4535 }
4536
4537 break;
4538
4539 case MORE:
4540 if (left < verbs[i].argc) {
4541 log_error("Too few arguments.");
e4b61340 4542 return -EINVAL;
7e4249b9
LP		 4543 }
4544
4545 break;
4546
4547 case LESS:
4548 if (left > verbs[i].argc) {
4549 log_error("Too many arguments.");
e4b61340 4550 return -EINVAL;
7e4249b9
LP		 4551 }
4552
4553 break;
4554
4555 default:
4556 assert_not_reached("Unknown comparison operator.");
4557 }
4558
ee5762e3
LP		 4559 /* Require a bus connection for all operations but
4560 * enable/disable */
4561 if (!streq(verbs[i].verb, "enable") &&
4562 !streq(verbs[i].verb, "disable") &&
4563 !bus) {
4564 log_error("Failed to get D-Bus connection: %s", error->message);
4565 return -EIO;
4566 }
4567
e4b61340
LP		 4568 return verbs[i].dispatch(bus, argv + optind, left);
4569}
4570
4571static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4572
4573 if (bus) {
4574 /* First, try systemd via D-Bus. */
e364ad06 4575 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 4576 return 0;
4577 }
4578
4579 /* Nothing else worked, so let's try signals */
4580 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4581
4582 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4583 log_error("kill() failed: %m");
4584 return -errno;
4585 }
4586
4587 return 0;
4588}
4589
4590static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 4591
4592 if (bus) {
4593 /* First, try systemd via D-Bus. */
e364ad06 4594 if (start_unit(bus, NULL, 0) > 0)
983d9c90 4595 goto done;
e4b61340
LP		 4596 }
4597
ec7f7f20
LP		 4598 /* Hmm, talking to systemd via D-Bus didn't work. Then
4599 * let's try to talk to Upstart via D-Bus. */
e364ad06 4600 if (talk_upstart() > 0)
ec7f7f20
LP		 4601 goto done;
4602
e4b61340
LP		 4603 /* Nothing else worked, so let's try
4604 * /dev/initctl */
fbc43921 4605 if (talk_initctl() > 0)
983d9c90 4606 goto done;
d55ae9e6
LP		 4607
4608 log_error("Failed to talk to init daemon.");
4609 return -EIO;
983d9c90
LP		 4610
4611done:
4612 warn_wall(arg_action);
4613 return 0;
e4b61340
LP		 4614}
4615
4616static int halt_main(DBusConnection *bus) {
4617 int r;
4618
bc8c2f5c
LP		 4619 if (geteuid() != 0) {
4620 log_error("Must to be root.");
4621 return -EPERM;
4622 }
4623
d47b555b 4624 if (!arg_dry && !arg_immediate)
e4b61340
LP		 4625 return start_with_fallback(bus);
4626
4627 if (!arg_no_wtmp)
4628 if ((r = utmp_put_shutdown(0)) < 0)
4629 log_warning("Failed to write utmp record: %s", strerror(-r));
4630
4631 if (!arg_no_sync)
4632 sync();
4633
4634 if (arg_dry)
4635 return 0;
4636
4637 /* Make sure C-A-D is handled by the kernel from this
4638 * point on... */
4639 reboot(RB_ENABLE_CAD);
4640
4641 switch (arg_action) {
4642
4643 case ACTION_HALT:
3059b1c1 4644 log_info("Halting.");
e4b61340
LP		 4645 reboot(RB_HALT_SYSTEM);
4646 break;
4647
4648 case ACTION_POWEROFF:
3059b1c1 4649 log_info("Powering off.");
e4b61340
LP		 4650 reboot(RB_POWER_OFF);
4651 break;
4652
4653 case ACTION_REBOOT:
3059b1c1 4654 log_info("Rebooting.");
e4b61340
LP		 4655 reboot(RB_AUTOBOOT);
4656 break;
4657
4658 default:
4659 assert_not_reached("Unknown halt action.");
4660 }
4661
4662 /* We should never reach this. */
4663 return -ENOSYS;
4664}
4665
4666static int runlevel_main(void) {
4667 int r, runlevel, previous;
4668
4669 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 4670 printf("unknown\n");
e4b61340
LP		 4671 return r;
4672 }
4673
4674 printf("%c %c\n",
4675 previous <= 0 ? 'N' : previous,
4676 runlevel <= 0 ? 'N' : runlevel);
4677
4678 return 0;
4679}
4680
4681int main(int argc, char*argv[]) {
4682 int r, retval = 1;
4683 DBusConnection *bus = NULL;
4684 DBusError error;
4685
4686 dbus_error_init(&error);
4687
4688 log_parse_environment();
4689
4690 if ((r = parse_argv(argc, argv)) < 0)
4691 goto finish;
4692 else if (r == 0) {
4693 retval = 0;
7e4249b9
LP		 4694 goto finish;
4695 }
4696
e4b61340
LP		 4697 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
4698 * let's shortcut this */
4699 if (arg_action == ACTION_RUNLEVEL) {
4700 retval = runlevel_main() < 0;
4701 goto finish;
4702 }
4703
f4579ce7 4704 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 4705
4706 switch (arg_action) {
4707
4708 case ACTION_SYSTEMCTL: {
ee5762e3 4709 retval = systemctl_main(bus, argc, argv, &error) < 0;
e4b61340
LP		 4710 break;
4711 }
4712
4713 case ACTION_HALT:
4714 case ACTION_POWEROFF:
4715 case ACTION_REBOOT:
4716 retval = halt_main(bus) < 0;
4717 break;
4718
e4b61340
LP		 4719 case ACTION_RUNLEVEL2:
4720 case ACTION_RUNLEVEL3:
4721 case ACTION_RUNLEVEL4:
4722 case ACTION_RUNLEVEL5:
4723 case ACTION_RESCUE:
514f4ef5 4724 case ACTION_EMERGENCY:
eb22ac37 4725 case ACTION_DEFAULT:
e4b61340
LP		 4726 retval = start_with_fallback(bus) < 0;
4727 break;
7e4249b9 4728
e4b61340
LP		 4729 case ACTION_RELOAD:
4730 case ACTION_REEXEC:
4731 retval = reload_with_fallback(bus) < 0;
4732 break;
4733
eb22ac37
LP		 4734 case ACTION_INVALID:
4735 case ACTION_RUNLEVEL:
e4b61340
LP		 4736 default:
4737 assert_not_reached("Unknown action");
4738 }
7e4249b9
LP		 4739
4740finish:
4741
b574246b
LP		 4742 if (bus) {
4743 dbus_connection_close(bus);
7e4249b9 4744 dbus_connection_unref(bus);
b574246b 4745 }
7e4249b9 4746
e4b61340
LP		 4747 dbus_error_free(&error);
4748
7e4249b9
LP		 4749 dbus_shutdown();
4750
ea4a240d
LP		 4751 strv_free(arg_property);
4752
7e4249b9
LP		 4753 return retval;
4754}
Unnamed repository; edit this file 'description' to name the repository.