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systemctl: show process type along process exit codes
[thirdparty/systemd.git] / src / systemctl.c
CommitLineData
d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
7e4249b9
LP		 2
3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
e4b61340 22#include <sys/reboot.h>
7e4249b9
LP		 23#include <stdio.h>
24#include <getopt.h>
25#include <stdbool.h>
26#include <string.h>
27#include <errno.h>
28#include <sys/ioctl.h>
29#include <termios.h>
30#include <unistd.h>
eb22ac37 31#include <fcntl.h>
f1c5860b 32#include <sys/socket.h>
ee5762e3 33#include <sys/stat.h>
0e098b15 34#include <stddef.h>
501fc174 35#include <sys/prctl.h>
7e4249b9
LP		 36
37#include <dbus/dbus.h>
38
39#include "log.h"
40#include "util.h"
41#include "macro.h"
42#include "set.h"
e4b61340 43#include "utmp-wtmp.h"
514f4ef5 44#include "special.h"
eb22ac37 45#include "initreq.h"
e4a9373f 46#include "strv.h"
9a1ac7b9 47#include "dbus-common.h"
ab35fb1b 48#include "cgroup-show.h"
c6c18be3 49#include "cgroup-util.h"
582a507f 50#include "list.h"
ee5762e3
LP		 51#include "path-lookup.h"
52#include "conf-parser.h"
53#include "sd-daemon.h"
f6144808 54#include "shutdownd.h"
d06dacd0 55#include "exit-status.h"
22f4096c 56#include "bus-errors.h"
7d568925 57#include "build.h"
71fad675 58#include "unit-name.h"
7e4249b9
LP		 59
60static const char *arg_type = NULL;
ea4a240d 61static char **arg_property = NULL;
7e4249b9 62static bool arg_all = false;
90d473a1 63static bool arg_fail = false;
af2d49f7 64static bool arg_user = false;
ee5762e3 65static bool arg_global = false;
e4b61340 66static bool arg_immediate = false;
ee5762e3 67static bool arg_no_block = false;
0736af98 68static bool arg_no_pager = false;
e4b61340
LP		 69static bool arg_no_wtmp = false;
70static bool arg_no_sync = false;
514f4ef5 71static bool arg_no_wall = false;
ee5762e3 72static bool arg_no_reload = false;
e4b61340 73static bool arg_dry = false;
0183528f 74static bool arg_quiet = false;
ee5762e3
LP		 75static bool arg_full = false;
76static bool arg_force = false;
77static bool arg_defaults = false;
501fc174 78static bool arg_ask_password = false;
e4b61340 79static char **arg_wall = NULL;
8a0867d6
LP		 80static const char *arg_kill_who = NULL;
81static const char *arg_kill_mode = NULL;
82static int arg_signal = SIGTERM;
f6144808 83static usec_t arg_when = 0;
4445a875 84static enum action {
e4b61340
LP		 85 ACTION_INVALID,
86 ACTION_SYSTEMCTL,
87 ACTION_HALT,
88 ACTION_POWEROFF,
89 ACTION_REBOOT,
20b09ca7
LP		 90 ACTION_KEXEC,
91 ACTION_EXIT,
e4b61340
LP		 92 ACTION_RUNLEVEL2,
93 ACTION_RUNLEVEL3,
94 ACTION_RUNLEVEL4,
95 ACTION_RUNLEVEL5,
96 ACTION_RESCUE,
514f4ef5
LP		 97 ACTION_EMERGENCY,
98 ACTION_DEFAULT,
e4b61340
LP		 99 ACTION_RELOAD,
100 ACTION_REEXEC,
101 ACTION_RUNLEVEL,
f6144808 102 ACTION_CANCEL_SHUTDOWN,
e4b61340
LP		 103 _ACTION_MAX
104} arg_action = ACTION_SYSTEMCTL;
4445a875
LP		 105static enum dot {
106 DOT_ALL,
107 DOT_ORDER,
108 DOT_REQUIRE
109} arg_dot = DOT_ALL;
e4b61340 110
f4579ce7
LP		 111static bool private_bus = false;
112
1888c907
LP		 113static pid_t pager_pid = 0;
114
ee5762e3 115static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
ec14911e 116static void pager_open(void);
ee5762e3 117
2ee68f72 118static bool on_tty(void) {
2cc59dbf
LP		 119 static int t = -1;
120
75d12d57
LP		 121 /* Note that this is invoked relatively early, before we start
122 * the pager. That means the value we return reflects whether
123 * we originally were started on a tty, not if we currently
124 * are. But this is intended, since we want color, and so on
125 * when run in our own pager. */
126
2cc59dbf
LP		 127 if (_unlikely_(t < 0))
128 t = isatty(STDOUT_FILENO) > 0;
129
2ee68f72
LP		 130 return t;
131}
132
501fc174
LP		 133static void spawn_ask_password_agent(void) {
134 pid_t parent, child;
135
136 /* We check STDIN here, not STDOUT, since this is about input,
137 * not output */
138 if (!isatty(STDIN_FILENO))
139 return;
140
141 if (!arg_ask_password)
142 return;
143
144 parent = getpid();
145
146 /* Spawns a temporary TTY agent, making sure it goes away when
147 * we go away */
148
149 if ((child = fork()) < 0)
150 return;
151
152 if (child == 0) {
153 /* In the child */
154
155 const char * const args[] = {
156 SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH,
157 "--watch",
158 NULL
159 };
160
161 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
162 _exit(EXIT_FAILURE);
163
164 /* Check whether our parent died before we were able
165 * to set the death signal */
166 if (getppid() != parent)
167 _exit(EXIT_SUCCESS);
168
169 execv(args[0], (char **) args);
170 _exit(EXIT_FAILURE);
171 }
172}
173
2ee68f72
LP		 174static const char *ansi_highlight(bool b) {
175
176 if (!on_tty())
2cc59dbf
LP		 177 return "";
178
179 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
180}
181
2ee68f72
LP		 182static const char *ansi_highlight_green(bool b) {
183
184 if (!on_tty())
185 return "";
186
187 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
188}
189
f73e33d9 190static bool error_is_no_service(const DBusError *error) {
514f4ef5
LP		 191 assert(error);
192
e4b61340
LP		 193 if (!dbus_error_is_set(error))
194 return false;
195
196 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
197 return true;
198
199 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
200 return true;
201
202 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
203}
7e4249b9 204
22f4096c
LP		 205static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
206 assert(error);
207
208 if (!dbus_error_is_set(error))
209 return r;
210
211 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
212 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
213 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
214 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
215 return EXIT_NOPERMISSION;
216
217 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
218 return EXIT_NOTINSTALLED;
219
220 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
221 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
222 return EXIT_NOTIMPLEMENTED;
223
224 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
225 return EXIT_NOTCONFIGURED;
226
227 if (r != 0)
228 return r;
229
230 return EXIT_FAILURE;
231}
232
7e4249b9
LP		 233static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
234
514f4ef5
LP		 235 assert(iter);
236 assert(data);
237
7e4249b9
LP		 238 if (dbus_message_iter_get_arg_type(iter) != type)
239 return -EIO;
240
241 dbus_message_iter_get_basic(iter, data);
242
243 if (!dbus_message_iter_next(iter) != !next)
244 return -EIO;
245
246 return 0;
247}
248
514f4ef5 249static void warn_wall(enum action action) {
ef2f1067 250 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 251 [ACTION_HALT] = "The system is going down for system halt NOW!",
252 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
253 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
20b09ca7 254 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
514f4ef5
LP		 255 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
256 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 257 };
258
514f4ef5
LP		 259 if (arg_no_wall)
260 return;
261
e4a9373f
LP		 262 if (arg_wall) {
263 char *p;
264
265 if (!(p = strv_join(arg_wall, " "))) {
266 log_error("Failed to join strings.");
267 return;
268 }
269
270 if (*p) {
7af53310 271 utmp_wall(p, NULL);
e4a9373f
LP		 272 free(p);
273 return;
274 }
275
276 free(p);
277 }
278
514f4ef5 279 if (!table[action])
ef2f1067
LP		 280 return;
281
7af53310 282 utmp_wall(table[action], NULL);
ef2f1067
LP		 283}
284
36c32ba2
LP		 285struct unit_info {
286 const char *id;
287 const char *description;
288 const char *load_state;
289 const char *active_state;
290 const char *sub_state;
291 const char *following;
292 const char *unit_path;
293 uint32_t job_id;
294 const char *job_type;
295 const char *job_path;
296};
297
298static int compare_unit_info(const void *a, const void *b) {
299 const char *d1, *d2;
300 const struct unit_info *u = a, *v = b;
301
302 d1 = strrchr(u->id, '.');
303 d2 = strrchr(v->id, '.');
304
305 if (d1 && d2) {
306 int r;
307
a2a3a5b9 308 if ((r = strcasecmp(d1, d2)) != 0)
36c32ba2
LP		 309 return r;
310 }
311
a2a3a5b9 312 return strcasecmp(u->id, v->id);
36c32ba2
LP		 313}
314
33330222
ZJS		 315static bool output_show_job(const struct unit_info *u) {
316 const char *dot;
b036fc00 317
33330222
ZJS		 318 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
319 streq(dot+1, arg_type))) &&
320 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
321}
322
eb68c413 323static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
688c6725 324 unsigned active_len, sub_len, job_len, n_shown = 0;
b036fc00 325 const struct unit_info *u;
33330222 326
b036fc00
LP		 327 active_len = sizeof("ACTIVE")-1;
328 sub_len = sizeof("SUB")-1;
329 job_len = sizeof("JOB")-1;
330
331 for (u = unit_infos; u < unit_infos + c; u++) {
332 if (!output_show_job(u))
333 continue;
334
335 active_len = MAX(active_len, strlen(u->active_state));
336 sub_len = MAX(sub_len, strlen(u->sub_state));
337 if (u->job_id != 0)
338 job_len = MAX(job_len, strlen(u->job_type));
33330222
ZJS		 339 }
340
eb68c413 341 if (on_tty()) {
33330222
ZJS		 342 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
343 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
eb68c413 344 if (columns() >= 80+12 || arg_full)
33330222 345 printf(" %s\n", "DESCRIPTION");
eb68c413 346 else
33330222 347 printf("\n");
eb68c413
ZJS		 348 }
349
b036fc00
LP		 350 for (u = unit_infos; u < unit_infos + c; u++) {
351 char *e;
352 int a = 0, b = 0;
353 const char *on_loaded, *off_loaded;
354 const char *on_active, *off_active;
355
356 if (!output_show_job(u))
357 continue;
358
688c6725
LP		 359 n_shown++;
360
00dc5d76
LP		 361 if (!streq(u->load_state, "loaded") &&
362 !streq(u->load_state, "banned")) {
b036fc00
LP		 363 on_loaded = ansi_highlight(true);
364 off_loaded = ansi_highlight(false);
365 } else
366 on_loaded = off_loaded = "";
367
368 if (streq(u->active_state, "failed")) {
369 on_active = ansi_highlight(true);
370 off_active = ansi_highlight(false);
371 } else
372 on_active = off_active = "";
eb68c413 373
b036fc00 374 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
eb68c413 375
b036fc00
LP		 376 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
377 e ? e : u->id,
378 on_loaded, u->load_state, off_loaded,
379 on_active, active_len, u->active_state,
380 sub_len, u->sub_state, off_active,
381 &a);
eb68c413 382
b036fc00
LP		 383 free(e);
384
385 a -= strlen(on_loaded) + strlen(off_loaded);
386 a -= strlen(on_active) + strlen(off_active);
387
388 if (u->job_id != 0)
389 printf(" %-*s", job_len, u->job_type);
390 else
391 b = 1 + job_len;
392
393 if (a + b + 1 < columns()) {
394 if (u->job_id == 0)
395 printf(" %-*s", job_len, "");
396
397 if (arg_full)
398 printf(" %s", u->description);
399 else
400 printf(" %.*s", columns() - a - b - 1, u->description);
eb68c413 401 }
b036fc00
LP		 402
403 fputs("\n", stdout);
eb68c413
ZJS		 404 }
405
9b2fcafb 406 if (on_tty()) {
eb68c413
ZJS		 407 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
408 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
409 "SUB = The low-level unit activation state, values depend on unit type.\n"
410 "JOB = Pending job for the unit.\n");
411
412 if (arg_all)
688c6725 413 printf("\n%u units listed.\n", n_shown);
eb68c413 414 else
688c6725 415 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
eb68c413
ZJS		 416 }
417}
418
7e4249b9
LP		 419static int list_units(DBusConnection *bus, char **args, unsigned n) {
420 DBusMessage *m = NULL, *reply = NULL;
421 DBusError error;
422 int r;
423 DBusMessageIter iter, sub, sub2;
eb68c413 424 unsigned c = 0, n_units = 0;
36c32ba2 425 struct unit_info *unit_infos = NULL;
7e4249b9
LP		 426
427 dbus_error_init(&error);
428
514f4ef5
LP		 429 assert(bus);
430
ec14911e
LP		 431 pager_open();
432
7e4249b9
LP		 433 if (!(m = dbus_message_new_method_call(
434 "org.freedesktop.systemd1",
435 "/org/freedesktop/systemd1",
436 "org.freedesktop.systemd1.Manager",
437 "ListUnits"))) {
438 log_error("Could not allocate message.");
439 return -ENOMEM;
440 }
441
442 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 443 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 444 r = -EIO;
445 goto finish;
446 }
447
448 if (!dbus_message_iter_init(reply, &iter) ||
449 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
450 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
451 log_error("Failed to parse reply.");
452 r = -EIO;
453 goto finish;
454 }
455
456 dbus_message_iter_recurse(&iter, &sub);
457
7e4249b9 458 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
36c32ba2 459 struct unit_info *u;
7e4249b9
LP		 460
461 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
462 log_error("Failed to parse reply.");
463 r = -EIO;
464 goto finish;
465 }
466
36c32ba2
LP		 467 if (c >= n_units) {
468 struct unit_info *w;
469
470 n_units = MAX(2*c, 16);
471 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
472
473 if (!w) {
474 log_error("Failed to allocate unit array.");
475 r = -ENOMEM;
476 goto finish;
477 }
478
479 unit_infos = w;
480 }
481
482 u = unit_infos+c;
483
7e4249b9
LP		 484 dbus_message_iter_recurse(&sub, &sub2);
485
36c32ba2
LP		 486 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
487 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
488 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
489 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
490 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
491 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
492 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
493 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
494 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
495 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
7e4249b9
LP		 496 log_error("Failed to parse reply.");
497 r = -EIO;
498 goto finish;
499 }
500
36c32ba2
LP		 501 dbus_message_iter_next(&sub);
502 c++;
503 }
504
505 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
eb68c413 506 output_units_list(unit_infos, c);
4445a875
LP		 507
508 r = 0;
509
510finish:
511 if (m)
512 dbus_message_unref(m);
513
514 if (reply)
515 dbus_message_unref(reply);
516
36c32ba2
LP		 517 free(unit_infos);
518
4445a875
LP		 519 dbus_error_free(&error);
520
521 return r;
522}
523
524static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
525 static const char * const colors[] = {
526 "Requires", "[color=\"black\"]",
527 "RequiresOverridable", "[color=\"black\"]",
528 "Requisite", "[color=\"darkblue\"]",
529 "RequisiteOverridable", "[color=\"darkblue\"]",
530 "Wants", "[color=\"darkgrey\"]",
531 "Conflicts", "[color=\"red\"]",
69dd2852 532 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 533 "After", "[color=\"green\"]"
534 };
535
536 const char *c = NULL;
537 unsigned i;
538
539 assert(name);
540 assert(prop);
541 assert(iter);
542
543 for (i = 0; i < ELEMENTSOF(colors); i += 2)
544 if (streq(colors[i], prop)) {
545 c = colors[i+1];
546 break;
547 }
548
549 if (!c)
550 return 0;
551
552 if (arg_dot != DOT_ALL)
553 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
554 return 0;
555
556 switch (dbus_message_iter_get_arg_type(iter)) {
557
558 case DBUS_TYPE_ARRAY:
559
560 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
561 DBusMessageIter sub;
562
563 dbus_message_iter_recurse(iter, &sub);
564
565 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
566 const char *s;
567
568 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
569 dbus_message_iter_get_basic(&sub, &s);
570 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
571
572 dbus_message_iter_next(&sub);
573 }
574
575 return 0;
576 }
577 }
578
579 return 0;
580}
581
582static int dot_one(DBusConnection *bus, const char *name, const char *path) {
583 DBusMessage *m = NULL, *reply = NULL;
584 const char *interface = "org.freedesktop.systemd1.Unit";
585 int r;
586 DBusError error;
587 DBusMessageIter iter, sub, sub2, sub3;
588
589 assert(bus);
590 assert(path);
591
592 dbus_error_init(&error);
593
594 if (!(m = dbus_message_new_method_call(
595 "org.freedesktop.systemd1",
596 path,
597 "org.freedesktop.DBus.Properties",
598 "GetAll"))) {
599 log_error("Could not allocate message.");
600 r = -ENOMEM;
601 goto finish;
602 }
603
604 if (!dbus_message_append_args(m,
605 DBUS_TYPE_STRING, &interface,
606 DBUS_TYPE_INVALID)) {
607 log_error("Could not append arguments to message.");
608 r = -ENOMEM;
609 goto finish;
610 }
611
612 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 613 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 614 r = -EIO;
615 goto finish;
616 }
617
618 if (!dbus_message_iter_init(reply, &iter) ||
619 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
620 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
621 log_error("Failed to parse reply.");
622 r = -EIO;
623 goto finish;
624 }
625
626 dbus_message_iter_recurse(&iter, &sub);
627
628 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
629 const char *prop;
630
631 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
632 log_error("Failed to parse reply.");
633 r = -EIO;
634 goto finish;
635 }
636
637 dbus_message_iter_recurse(&sub, &sub2);
638
639 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
640 log_error("Failed to parse reply.");
641 r = -EIO;
642 goto finish;
643 }
644
645 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
646 log_error("Failed to parse reply.");
647 r = -EIO;
648 goto finish;
649 }
650
651 dbus_message_iter_recurse(&sub2, &sub3);
652
653 if (dot_one_property(name, prop, &sub3)) {
654 log_error("Failed to parse reply.");
655 r = -EIO;
656 goto finish;
657 }
658
659 dbus_message_iter_next(&sub);
660 }
661
e364ad06
LP		 662 r = 0;
663
4445a875
LP		 664finish:
665 if (m)
666 dbus_message_unref(m);
667
668 if (reply)
669 dbus_message_unref(reply);
670
671 dbus_error_free(&error);
672
673 return r;
674}
675
676static int dot(DBusConnection *bus, char **args, unsigned n) {
677 DBusMessage *m = NULL, *reply = NULL;
678 DBusError error;
679 int r;
680 DBusMessageIter iter, sub, sub2;
681
682 dbus_error_init(&error);
683
684 assert(bus);
685
686 if (!(m = dbus_message_new_method_call(
687 "org.freedesktop.systemd1",
688 "/org/freedesktop/systemd1",
689 "org.freedesktop.systemd1.Manager",
690 "ListUnits"))) {
691 log_error("Could not allocate message.");
692 return -ENOMEM;
693 }
694
695 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 696 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 697 r = -EIO;
698 goto finish;
699 }
700
701 if (!dbus_message_iter_init(reply, &iter) ||
702 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
703 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
704 log_error("Failed to parse reply.");
705 r = -EIO;
706 goto finish;
707 }
708
709 printf("digraph systemd {\n");
710
711 dbus_message_iter_recurse(&iter, &sub);
712 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 713 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 714
715 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
716 log_error("Failed to parse reply.");
717 r = -EIO;
718 goto finish;
719 }
720
721 dbus_message_iter_recurse(&sub, &sub2);
722
723 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
724 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
725 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
726 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
727 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 728 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 729 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
730 log_error("Failed to parse reply.");
731 r = -EIO;
732 goto finish;
733 }
734
735 if ((r = dot_one(bus, id, unit_path)) < 0)
736 goto finish;
737
738 /* printf("\t\"%s\";\n", id); */
739 dbus_message_iter_next(&sub);
740 }
741
742 printf("}\n");
743
744 log_info(" Color legend: black = Requires\n"
745 " dark blue = Requisite\n"
746 " dark grey = Wants\n"
747 " red = Conflicts\n"
748 " green = After\n");
749
750 if (isatty(fileno(stdout)))
751 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
752 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 753
754 r = 0;
755
756finish:
757 if (m)
758 dbus_message_unref(m);
759
760 if (reply)
761 dbus_message_unref(reply);
762
763 dbus_error_free(&error);
764
765 return r;
766}
767
768static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
769 DBusMessage *m = NULL, *reply = NULL;
770 DBusError error;
771 int r;
772 DBusMessageIter iter, sub, sub2;
773 unsigned k = 0;
774
775 dbus_error_init(&error);
776
514f4ef5
LP		 777 assert(bus);
778
ec14911e
LP		 779 pager_open();
780
7e4249b9
LP		 781 if (!(m = dbus_message_new_method_call(
782 "org.freedesktop.systemd1",
783 "/org/freedesktop/systemd1",
784 "org.freedesktop.systemd1.Manager",
785 "ListJobs"))) {
786 log_error("Could not allocate message.");
787 return -ENOMEM;
788 }
789
790 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 791 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 792 r = -EIO;
793 goto finish;
794 }
795
796 if (!dbus_message_iter_init(reply, &iter) ||
797 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
798 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
799 log_error("Failed to parse reply.");
800 r = -EIO;
801 goto finish;
802 }
803
804 dbus_message_iter_recurse(&iter, &sub);
805
f73e33d9
LP		 806 if (isatty(STDOUT_FILENO))
807 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
7e4249b9
LP		 808
809 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
810 const char *name, *type, *state, *job_path, *unit_path;
811 uint32_t id;
8fe914ec 812 char *e;
7e4249b9
LP		 813
814 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
815 log_error("Failed to parse reply.");
816 r = -EIO;
817 goto finish;
818 }
819
820 dbus_message_iter_recurse(&sub, &sub2);
821
822 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
823 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
824 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
825 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
826 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
827 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
828 log_error("Failed to parse reply.");
829 r = -EIO;
830 goto finish;
831 }
832
f73e33d9
LP		 833 e = arg_full ? NULL : ellipsize(name, 25, 33);
834 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
8fe914ec
LP		 835 free(e);
836
7e4249b9
LP		 837 k++;
838
839 dbus_message_iter_next(&sub);
840 }
841
f73e33d9
LP		 842 if (isatty(STDOUT_FILENO))
843 printf("\n%u jobs listed.\n", k);
844
7e4249b9
LP		 845 r = 0;
846
847finish:
848 if (m)
849 dbus_message_unref(m);
850
851 if (reply)
852 dbus_message_unref(reply);
853
854 dbus_error_free(&error);
855
856 return r;
857}
858
859static int load_unit(DBusConnection *bus, char **args, unsigned n) {
860 DBusMessage *m = NULL, *reply = NULL;
861 DBusError error;
862 int r;
863 unsigned i;
864
865 dbus_error_init(&error);
866
514f4ef5
LP		 867 assert(bus);
868 assert(args);
869
7e4249b9
LP		 870 for (i = 1; i < n; i++) {
871
872 if (!(m = dbus_message_new_method_call(
873 "org.freedesktop.systemd1",
874 "/org/freedesktop/systemd1",
875 "org.freedesktop.systemd1.Manager",
876 "LoadUnit"))) {
877 log_error("Could not allocate message.");
878 r = -ENOMEM;
879 goto finish;
880 }
881
882 if (!dbus_message_append_args(m,
883 DBUS_TYPE_STRING, &args[i],
884 DBUS_TYPE_INVALID)) {
885 log_error("Could not append arguments to message.");
886 r = -ENOMEM;
887 goto finish;
888 }
889
890 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 891 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 892 r = -EIO;
893 goto finish;
894 }
895
896 dbus_message_unref(m);
897 dbus_message_unref(reply);
898
899 m = reply = NULL;
900 }
901
902 r = 0;
903
904finish:
905 if (m)
906 dbus_message_unref(m);
907
908 if (reply)
909 dbus_message_unref(reply);
910
911 dbus_error_free(&error);
912
913 return r;
914}
915
916static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
917 DBusMessage *m = NULL, *reply = NULL;
918 DBusError error;
919 int r;
920 unsigned i;
921
922 dbus_error_init(&error);
923
514f4ef5
LP		 924 assert(bus);
925 assert(args);
926
ee5762e3
LP		 927 if (n <= 1)
928 return daemon_reload(bus, args, n);
929
7e4249b9
LP		 930 for (i = 1; i < n; i++) {
931 unsigned id;
932 const char *path;
933
934 if (!(m = dbus_message_new_method_call(
935 "org.freedesktop.systemd1",
936 "/org/freedesktop/systemd1",
937 "org.freedesktop.systemd1.Manager",
938 "GetJob"))) {
939 log_error("Could not allocate message.");
940 r = -ENOMEM;
941 goto finish;
942 }
943
944 if ((r = safe_atou(args[i], &id)) < 0) {
945 log_error("Failed to parse job id: %s", strerror(-r));
946 goto finish;
947 }
948
949 assert_cc(sizeof(uint32_t) == sizeof(id));
950 if (!dbus_message_append_args(m,
951 DBUS_TYPE_UINT32, &id,
952 DBUS_TYPE_INVALID)) {
953 log_error("Could not append arguments to message.");
954 r = -ENOMEM;
955 goto finish;
956 }
957
958 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 959 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 960 r = -EIO;
961 goto finish;
962 }
963
964 if (!dbus_message_get_args(reply, &error,
965 DBUS_TYPE_OBJECT_PATH, &path,
966 DBUS_TYPE_INVALID)) {
4cf5d675 967 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 968 r = -EIO;
969 goto finish;
970 }
971
972 dbus_message_unref(m);
973 if (!(m = dbus_message_new_method_call(
974 "org.freedesktop.systemd1",
975 path,
976 "org.freedesktop.systemd1.Job",
977 "Cancel"))) {
978 log_error("Could not allocate message.");
979 r = -ENOMEM;
980 goto finish;
981 }
982
983 dbus_message_unref(reply);
984 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 985 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 986 r = -EIO;
987 goto finish;
988 }
989
990 dbus_message_unref(m);
991 dbus_message_unref(reply);
992 m = reply = NULL;
993 }
994
995 r = 0;
996
997finish:
998 if (m)
999 dbus_message_unref(m);
1000
1001 if (reply)
1002 dbus_message_unref(reply);
1003
1004 dbus_error_free(&error);
1005
1006 return r;
1007}
1008
ee5762e3 1009static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
e364ad06 1010 DBusMessage *m = NULL, *reply = NULL;
45fb0699
LP		 1011 dbus_bool_t b = FALSE;
1012 DBusMessageIter iter, sub;
1013 const char
1014 *interface = "org.freedesktop.systemd1.Unit",
1015 *property = "NeedDaemonReload",
1016 *path;
1017
1018 /* We ignore all errors here, since this is used to show a warning only */
1019
1020 if (!(m = dbus_message_new_method_call(
1021 "org.freedesktop.systemd1",
1022 "/org/freedesktop/systemd1",
1023 "org.freedesktop.systemd1.Manager",
1024 "GetUnit")))
1025 goto finish;
1026
1027 if (!dbus_message_append_args(m,
1028 DBUS_TYPE_STRING, &unit,
1029 DBUS_TYPE_INVALID))
1030 goto finish;
1031
1032 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1033 goto finish;
1034
1035 if (!dbus_message_get_args(reply, NULL,
1036 DBUS_TYPE_OBJECT_PATH, &path,
1037 DBUS_TYPE_INVALID))
1038 goto finish;
1039
1040 dbus_message_unref(m);
1041 if (!(m = dbus_message_new_method_call(
1042 "org.freedesktop.systemd1",
1043 path,
1044 "org.freedesktop.DBus.Properties",
1045 "Get")))
1046 goto finish;
1047
1048 if (!dbus_message_append_args(m,
1049 DBUS_TYPE_STRING, &interface,
1050 DBUS_TYPE_STRING, &property,
1051 DBUS_TYPE_INVALID)) {
1052 goto finish;
1053 }
1054
1055 dbus_message_unref(reply);
1056 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1057 goto finish;
1058
1059 if (!dbus_message_iter_init(reply, &iter) ||
1060 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1061 goto finish;
1062
1063 dbus_message_iter_recurse(&iter, &sub);
1064
1065 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1066 goto finish;
1067
1068 dbus_message_iter_get_basic(&sub, &b);
1069
1070finish:
1071 if (m)
1072 dbus_message_unref(m);
1073
1074 if (reply)
1075 dbus_message_unref(reply);
1076
1077 return b;
1078}
1079
5e374895
LP		 1080typedef struct WaitData {
1081 Set *set;
1082 bool failed;
1083} WaitData;
1084
7e4249b9
LP		 1085static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1086 DBusError error;
5e374895 1087 WaitData *d = data;
7e4249b9
LP		 1088
1089 assert(connection);
1090 assert(message);
5e374895 1091 assert(d);
7e4249b9
LP		 1092
1093 dbus_error_init(&error);
1094
54165a39
LP		 1095 log_debug("Got D-Bus request: %s.%s() on %s",
1096 dbus_message_get_interface(message),
1097 dbus_message_get_member(message),
1098 dbus_message_get_path(message));
7e4249b9
LP		 1099
1100 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1101 log_error("Warning! D-Bus connection terminated.");
1102 dbus_connection_close(connection);
1103
1104 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1105 uint32_t id;
1106 const char *path;
5e374895 1107 dbus_bool_t success = true;
7e4249b9
LP		 1108
1109 if (!dbus_message_get_args(message, &error,
1110 DBUS_TYPE_UINT32, &id,
1111 DBUS_TYPE_OBJECT_PATH, &path,
5e374895 1112 DBUS_TYPE_BOOLEAN, &success,
7e4249b9 1113 DBUS_TYPE_INVALID))
4cf5d675 1114 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 1115 else {
1116 char *p;
1117
5e374895 1118 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 1119 free(p);
5e374895
LP		 1120
1121 if (!success)
1122 d->failed = true;
7e4249b9
LP		 1123 }
1124 }
1125
1126 dbus_error_free(&error);
1127 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1128}
1129
479ef5d3 1130static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 1131 DBusError error;
7e4249b9
LP		 1132
1133 assert(bus);
7e4249b9 1134
f4579ce7
LP		 1135 if (private_bus)
1136 return 0;
1137
7e4249b9 1138 dbus_error_init(&error);
7e4249b9
LP		 1139 dbus_bus_add_match(bus,
1140 "type='signal',"
1141 "sender='org.freedesktop.systemd1',"
1142 "interface='org.freedesktop.systemd1.Manager',"
1143 "member='JobRemoved',"
1144 "path='/org/freedesktop/systemd1'",
1145 &error);
1146
1147 if (dbus_error_is_set(&error)) {
4cf5d675 1148 log_error("Failed to add match: %s", bus_error_message(&error));
a567261a
LP		 1149 dbus_error_free(&error);
1150 return -EIO;
7e4249b9
LP		 1151 }
1152
479ef5d3 1153 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 1154 return 0;
7e4249b9
LP		 1155}
1156
479ef5d3
LP		 1157static int wait_for_jobs(DBusConnection *bus, Set *s) {
1158 int r;
5e374895 1159 WaitData d;
479ef5d3
LP		 1160
1161 assert(bus);
1162 assert(s);
1163
5e374895
LP		 1164 zero(d);
1165 d.set = s;
1166 d.failed = false;
1167
1168 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 1169 log_error("Failed to add filter.");
1170 r = -ENOMEM;
1171 goto finish;
1172 }
1173
1174 while (!set_isempty(s) &&
1175 dbus_connection_read_write_dispatch(bus, -1))
1176 ;
1177
5e374895 1178 if (!arg_quiet && d.failed)
da8f9f8c 1179 log_error("Job failed. See system logs and 'systemctl status' for details.");
5e374895
LP		 1180
1181 r = d.failed ? -EIO : 0;
479ef5d3
LP		 1182
1183finish:
1184 /* This is slightly dirty, since we don't undo the filter registration. */
1185
1186 return r;
1187}
1188
e4b61340
LP		 1189static int start_unit_one(
1190 DBusConnection *bus,
1191 const char *method,
1192 const char *name,
1193 const char *mode,
22f4096c 1194 DBusError *error,
e4b61340 1195 Set *s) {
7e4249b9 1196
7e4249b9 1197 DBusMessage *m = NULL, *reply = NULL;
45fb0699 1198 const char *path;
7e4249b9 1199 int r;
7e4249b9 1200
e4b61340
LP		 1201 assert(bus);
1202 assert(method);
1203 assert(name);
1204 assert(mode);
22f4096c 1205 assert(error);
6e905d93 1206 assert(arg_no_block || s);
7e4249b9
LP		 1207
1208 if (!(m = dbus_message_new_method_call(
1209 "org.freedesktop.systemd1",
1210 "/org/freedesktop/systemd1",
1211 "org.freedesktop.systemd1.Manager",
e4b61340 1212 method))) {
7e4249b9
LP		 1213 log_error("Could not allocate message.");
1214 r = -ENOMEM;
1215 goto finish;
1216 }
1217
1218 if (!dbus_message_append_args(m,
e4b61340 1219 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 1220 DBUS_TYPE_STRING, &mode,
1221 DBUS_TYPE_INVALID)) {
1222 log_error("Could not append arguments to message.");
1223 r = -ENOMEM;
1224 goto finish;
1225 }
1226
22f4096c 1227 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
e4b61340 1228
22f4096c 1229 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
e4b61340
LP		 1230 /* There's always a fallback possible for
1231 * legacy actions. */
706900b7 1232 r = -EADDRNOTAVAIL;
e4b61340
LP		 1233 goto finish;
1234 }
1235
22f4096c 1236 log_error("Failed to issue method call: %s", bus_error_message(error));
7e4249b9
LP		 1237 r = -EIO;
1238 goto finish;
1239 }
1240
22f4096c 1241 if (!dbus_message_get_args(reply, error,
45fb0699
LP		 1242 DBUS_TYPE_OBJECT_PATH, &path,
1243 DBUS_TYPE_INVALID)) {
22f4096c 1244 log_error("Failed to parse reply: %s", bus_error_message(error));
45fb0699
LP		 1245 r = -EIO;
1246 goto finish;
1247 }
1248
ee5762e3 1249 if (need_daemon_reload(bus, name))
45fb0699 1250 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
af2d49f7 1251 arg_user ? "--user" : "--system");
45fb0699 1252
6e905d93 1253 if (!arg_no_block) {
e4b61340 1254 char *p;
7e4249b9 1255
7e4249b9
LP		 1256 if (!(p = strdup(path))) {
1257 log_error("Failed to duplicate path.");
1258 r = -ENOMEM;
1259 goto finish;
1260 }
1261
1262 if ((r = set_put(s, p)) < 0) {
e4b61340 1263 free(p);
7e4249b9
LP		 1264 log_error("Failed to add path to set.");
1265 goto finish;
1266 }
e4b61340 1267 }
7e4249b9 1268
706900b7 1269 r = 0;
22f4096c 1270
7e4249b9 1271finish:
7e4249b9
LP		 1272 if (m)
1273 dbus_message_unref(m);
1274
1275 if (reply)
1276 dbus_message_unref(reply);
1277
7e4249b9
LP		 1278 return r;
1279}
1280
514f4ef5
LP		 1281static enum action verb_to_action(const char *verb) {
1282 if (streq(verb, "halt"))
1283 return ACTION_HALT;
1284 else if (streq(verb, "poweroff"))
1285 return ACTION_POWEROFF;
1286 else if (streq(verb, "reboot"))
1287 return ACTION_REBOOT;
20b09ca7
LP		 1288 else if (streq(verb, "kexec"))
1289 return ACTION_KEXEC;
514f4ef5
LP		 1290 else if (streq(verb, "rescue"))
1291 return ACTION_RESCUE;
1292 else if (streq(verb, "emergency"))
1293 return ACTION_EMERGENCY;
1294 else if (streq(verb, "default"))
1295 return ACTION_DEFAULT;
20b09ca7
LP		 1296 else if (streq(verb, "exit"))
1297 return ACTION_EXIT;
514f4ef5
LP		 1298 else
1299 return ACTION_INVALID;
1300}
1301
e4b61340
LP		 1302static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1303
1304 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1305 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1306 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1307 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
20b09ca7 1308 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
514f4ef5
LP		 1309 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1310 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1311 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1312 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1313 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1314 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
20b09ca7
LP		 1315 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1316 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
e4b61340
LP		 1317 };
1318
22f4096c 1319 int r, ret = 0;
e4b61340 1320 unsigned i;
514f4ef5 1321 const char *method, *mode, *one_name;
e4b61340 1322 Set *s = NULL;
22f4096c
LP		 1323 DBusError error;
1324
1325 dbus_error_init(&error);
e4b61340 1326
514f4ef5
LP		 1327 assert(bus);
1328
501fc174
LP		 1329 spawn_ask_password_agent();
1330
e4b61340
LP		 1331 if (arg_action == ACTION_SYSTEMCTL) {
1332 method =
6f28c033
LP		 1333 streq(args[0], "stop") ? "StopUnit" :
1334 streq(args[0], "reload") ? "ReloadUnit" :
1335 streq(args[0], "restart") ? "RestartUnit" :
aa5939a3
MS		 1336 streq(args[0], "try-restart") ||
1337 streq(args[0], "condrestart") ? "TryRestartUnit" :
6f28c033 1338 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
9d8a57ff 1339 streq(args[0], "reload-or-try-restart") ||
aa5939a3 1340 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
6f28c033 1341 "StartUnit";
e4b61340
LP		 1342
1343 mode =
514f4ef5
LP		 1344 (streq(args[0], "isolate") ||
1345 streq(args[0], "rescue") ||
1346 streq(args[0], "emergency")) ? "isolate" :
90d473a1
LP		 1347 arg_fail ? "fail" :
1348 "replace";
e4b61340 1349
514f4ef5 1350 one_name = table[verb_to_action(args[0])];
e4b61340 1351
e4b61340
LP		 1352 } else {
1353 assert(arg_action < ELEMENTSOF(table));
1354 assert(table[arg_action]);
1355
1356 method = "StartUnit";
514f4ef5
LP		 1357
1358 mode = (arg_action == ACTION_EMERGENCY ||
6f0d624e
LP		 1359 arg_action == ACTION_RESCUE ||
1360 arg_action == ACTION_RUNLEVEL2 ||
1361 arg_action == ACTION_RUNLEVEL3 ||
1362 arg_action == ACTION_RUNLEVEL4 ||
1363 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
514f4ef5
LP		 1364
1365 one_name = table[arg_action];
1366 }
1367
6e905d93 1368 if (!arg_no_block) {
22f4096c
LP		 1369 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1370 log_error("Could not watch jobs: %s", strerror(-ret));
514f4ef5
LP		 1371 goto finish;
1372 }
1373
1374 if (!(s = set_new(string_hash_func, string_compare_func))) {
1375 log_error("Failed to allocate set.");
22f4096c 1376 ret = -ENOMEM;
514f4ef5
LP		 1377 goto finish;
1378 }
e4b61340
LP		 1379 }
1380
514f4ef5 1381 if (one_name) {
22f4096c 1382 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
514f4ef5
LP		 1383 goto finish;
1384 } else {
e4b61340 1385 for (i = 1; i < n; i++)
22f4096c 1386 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
706900b7 1387 ret = translate_bus_error_to_exit_status(r, &error);
22f4096c
LP		 1388 dbus_error_free(&error);
1389 }
e4b61340
LP		 1390 }
1391
6e905d93 1392 if (!arg_no_block)
22f4096c
LP		 1393 if ((r = wait_for_jobs(bus, s)) < 0) {
1394 ret = r;
fbc43921 1395 goto finish;
22f4096c 1396 }
514f4ef5 1397
e4b61340
LP		 1398finish:
1399 if (s)
1400 set_free_free(s);
1401
22f4096c
LP		 1402 dbus_error_free(&error);
1403
1404 return ret;
e4b61340
LP		 1405}
1406
514f4ef5 1407static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1408 int r;
1409
514f4ef5
LP		 1410 assert(bus);
1411 assert(args);
1412
20b09ca7
LP		 1413 if (arg_force &&
1414 (streq(args[0], "halt") ||
1415 streq(args[0], "poweroff") ||
1416 streq(args[0], "reboot") ||
1417 streq(args[0], "kexec") ||
1418 streq(args[0], "exit")))
1419 return daemon_reload(bus, args, n);
1420
983d9c90
LP		 1421 r = start_unit(bus, args, n);
1422
1423 if (r >= 0)
1424 warn_wall(verb_to_action(args[0]));
514f4ef5 1425
983d9c90 1426 return r;
514f4ef5
LP		 1427}
1428
0183528f
LP		 1429static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1430 DBusMessage *m = NULL, *reply = NULL;
1431 const char
1432 *interface = "org.freedesktop.systemd1.Unit",
1433 *property = "ActiveState";
22f4096c 1434 int r = 3; /* According to LSB: "program is not running" */
0183528f
LP		 1435 DBusError error;
1436 unsigned i;
1437
1438 assert(bus);
1439 assert(args);
1440
1441 dbus_error_init(&error);
1442
1443 for (i = 1; i < n; i++) {
1444 const char *path = NULL;
1445 const char *state;
1446 DBusMessageIter iter, sub;
1447
1448 if (!(m = dbus_message_new_method_call(
1449 "org.freedesktop.systemd1",
1450 "/org/freedesktop/systemd1",
1451 "org.freedesktop.systemd1.Manager",
1452 "GetUnit"))) {
1453 log_error("Could not allocate message.");
1454 r = -ENOMEM;
1455 goto finish;
1456 }
1457
1458 if (!dbus_message_append_args(m,
1459 DBUS_TYPE_STRING, &args[i],
1460 DBUS_TYPE_INVALID)) {
1461 log_error("Could not append arguments to message.");
1462 r = -ENOMEM;
1463 goto finish;
1464 }
1465
1466 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1467
1468 /* Hmm, cannot figure out anything about this unit... */
1469 if (!arg_quiet)
1470 puts("unknown");
1471
ed2d7a44 1472 dbus_error_free(&error);
8a0867d6 1473 dbus_message_unref(m);
0183528f
LP		 1474 continue;
1475 }
1476
1477 if (!dbus_message_get_args(reply, &error,
1478 DBUS_TYPE_OBJECT_PATH, &path,
1479 DBUS_TYPE_INVALID)) {
4cf5d675 1480 log_error("Failed to parse reply: %s", bus_error_message(&error));
0183528f
LP		 1481 r = -EIO;
1482 goto finish;
1483 }
1484
1485 dbus_message_unref(m);
1486 if (!(m = dbus_message_new_method_call(
1487 "org.freedesktop.systemd1",
1488 path,
1489 "org.freedesktop.DBus.Properties",
1490 "Get"))) {
1491 log_error("Could not allocate message.");
1492 r = -ENOMEM;
1493 goto finish;
1494 }
1495
1496 if (!dbus_message_append_args(m,
1497 DBUS_TYPE_STRING, &interface,
1498 DBUS_TYPE_STRING, &property,
1499 DBUS_TYPE_INVALID)) {
1500 log_error("Could not append arguments to message.");
1501 r = -ENOMEM;
1502 goto finish;
1503 }
1504
1505 dbus_message_unref(reply);
1506 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1507 log_error("Failed to issue method call: %s", bus_error_message(&error));
0183528f
LP		 1508 r = -EIO;
1509 goto finish;
1510 }
1511
1512 if (!dbus_message_iter_init(reply, &iter) ||
1513 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1514 log_error("Failed to parse reply.");
1515 r = -EIO;
1516 goto finish;
1517 }
1518
1519 dbus_message_iter_recurse(&iter, &sub);
1520
1521 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1522 log_error("Failed to parse reply.");
1523 r = -EIO;
1524 goto finish;
1525 }
1526
1527 dbus_message_iter_get_basic(&sub, &state);
1528
1529 if (!arg_quiet)
1530 puts(state);
1531
f1e36d67 1532 if (streq(state, "active") || streq(state, "reloading"))
0183528f
LP		 1533 r = 0;
1534
1535 dbus_message_unref(m);
1536 dbus_message_unref(reply);
1537 m = reply = NULL;
1538 }
1539
1540finish:
1541 if (m)
1542 dbus_message_unref(m);
1543
1544 if (reply)
1545 dbus_message_unref(reply);
1546
1547 dbus_error_free(&error);
1548
1549 return r;
48220598
LP		 1550}
1551
8a0867d6
LP		 1552static int kill_unit(DBusConnection *bus, char **args, unsigned n) {
1553 DBusMessage *m = NULL, *reply = NULL;
1554 int r = 0;
1555 DBusError error;
1556 unsigned i;
1557
1558 assert(bus);
1559 assert(args);
1560
1561 dbus_error_init(&error);
1562
1563 if (!arg_kill_who)
1564 arg_kill_who = "all";
1565
1566 if (!arg_kill_mode)
1567 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
1568
1569 for (i = 1; i < n; i++) {
1570
1571 if (!(m = dbus_message_new_method_call(
1572 "org.freedesktop.systemd1",
1573 "/org/freedesktop/systemd1",
1574 "org.freedesktop.systemd1.Manager",
1575 "KillUnit"))) {
1576 log_error("Could not allocate message.");
1577 r = -ENOMEM;
1578 goto finish;
1579 }
1580
1581 if (!dbus_message_append_args(m,
1582 DBUS_TYPE_STRING, &args[i],
1583 DBUS_TYPE_STRING, &arg_kill_who,
1584 DBUS_TYPE_STRING, &arg_kill_mode,
1585 DBUS_TYPE_INT32, &arg_signal,
1586 DBUS_TYPE_INVALID)) {
1587 log_error("Could not append arguments to message.");
1588 r = -ENOMEM;
1589 goto finish;
1590 }
1591
1592 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1593 log_error("Failed to issue method call: %s", bus_error_message(&error));
1594 dbus_error_free(&error);
1595 r = -EIO;
1596 }
1597
1598 dbus_message_unref(m);
1599
1600 if (reply)
1601 dbus_message_unref(reply);
1602 m = reply = NULL;
1603 }
1604
1605finish:
1606 if (m)
1607 dbus_message_unref(m);
1608
1609 if (reply)
1610 dbus_message_unref(reply);
1611
1612 dbus_error_free(&error);
1613
1614 return r;
1615}
1616
582a507f 1617typedef struct ExecStatusInfo {
0129173a
LP		 1618 char *name;
1619
582a507f
LP		 1620 char *path;
1621 char **argv;
1622
b708e7ce
LP		 1623 bool ignore;
1624
582a507f
LP		 1625 usec_t start_timestamp;
1626 usec_t exit_timestamp;
1627 pid_t pid;
1628 int code;
1629 int status;
1630
1631 LIST_FIELDS(struct ExecStatusInfo, exec);
1632} ExecStatusInfo;
1633
1634static void exec_status_info_free(ExecStatusInfo *i) {
1635 assert(i);
1636
0129173a 1637 free(i->name);
582a507f
LP		 1638 free(i->path);
1639 strv_free(i->argv);
1640 free(i);
1641}
1642
1643static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1644 uint64_t start_timestamp, exit_timestamp;
1645 DBusMessageIter sub2, sub3;
1646 const char*path;
1647 unsigned n;
1648 uint32_t pid;
1649 int32_t code, status;
b708e7ce 1650 dbus_bool_t ignore;
582a507f
LP		 1651
1652 assert(i);
1653 assert(i);
1654
1655 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1656 return -EIO;
1657
1658 dbus_message_iter_recurse(sub, &sub2);
1659
1660 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1661 return -EIO;
1662
1663 if (!(i->path = strdup(path)))
1664 return -ENOMEM;
1665
1666 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1667 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1668 return -EIO;
1669
1670 n = 0;
1671 dbus_message_iter_recurse(&sub2, &sub3);
1672 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1673 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1674 dbus_message_iter_next(&sub3);
1675 n++;
1676 }
1677
1678
1679 if (!(i->argv = new0(char*, n+1)))
1680 return -ENOMEM;
1681
1682 n = 0;
1683 dbus_message_iter_recurse(&sub2, &sub3);
1684 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1685 const char *s;
1686
1687 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1688 dbus_message_iter_get_basic(&sub3, &s);
1689 dbus_message_iter_next(&sub3);
1690
1691 if (!(i->argv[n++] = strdup(s)))
1692 return -ENOMEM;
1693 }
1694
1695 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1696 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1697 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1698 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1699 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1700 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1701 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1702 return -EIO;
1703
b708e7ce 1704 i->ignore = ignore;
582a507f
LP		 1705 i->start_timestamp = (usec_t) start_timestamp;
1706 i->exit_timestamp = (usec_t) exit_timestamp;
1707 i->pid = (pid_t) pid;
1708 i->code = code;
1709 i->status = status;
1710
1711 return 0;
1712}
1713
61cbdc4b
LP		 1714typedef struct UnitStatusInfo {
1715 const char *id;
1716 const char *load_state;
1717 const char *active_state;
1718 const char *sub_state;
1719
1720 const char *description;
4a9e2fff 1721 const char *following;
61cbdc4b 1722
c31b4423 1723 const char *path;
61cbdc4b
LP		 1724 const char *default_control_group;
1725
584be568
LP		 1726 usec_t inactive_exit_timestamp;
1727 usec_t active_enter_timestamp;
1728 usec_t active_exit_timestamp;
1729 usec_t inactive_enter_timestamp;
1730
45fb0699
LP		 1731 bool need_daemon_reload;
1732
61cbdc4b
LP		 1733 /* Service */
1734 pid_t main_pid;
1735 pid_t control_pid;
1736 const char *status_text;
d06dacd0 1737 bool running:1;
07459bb6 1738#ifdef HAVE_SYSV_COMPAT
d06dacd0 1739 bool is_sysv:1;
07459bb6 1740#endif
61cbdc4b
LP		 1741
1742 usec_t start_timestamp;
1743 usec_t exit_timestamp;
1744
1745 int exit_code, exit_status;
1746
1747 /* Socket */
1748 unsigned n_accepted;
1749 unsigned n_connections;
b8131a87 1750 bool accept;
61cbdc4b
LP		 1751
1752 /* Device */
1753 const char *sysfs_path;
1754
1755 /* Mount, Automount */
1756 const char *where;
1757
1758 /* Swap */
1759 const char *what;
582a507f
LP		 1760
1761 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1762} UnitStatusInfo;
1763
1764static void print_status_info(UnitStatusInfo *i) {
582a507f 1765 ExecStatusInfo *p;
2ee68f72 1766 const char *on, *off, *ss;
584be568
LP		 1767 usec_t timestamp;
1768 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1769 char since2[FORMAT_TIMESTAMP_MAX], *s2;
582a507f 1770
61cbdc4b
LP		 1771 assert(i);
1772
1773 /* This shows pretty information about a unit. See
1774 * print_property() for a low-level property printer */
1775
1776 printf("%s", strna(i->id));
1777
1778 if (i->description && !streq_ptr(i->id, i->description))
1779 printf(" - %s", i->description);
1780
1781 printf("\n");
1782
4a9e2fff
LP		 1783 if (i->following)
1784 printf("\t Follow: unit currently follows state of %s\n", i->following);
1785
00dc5d76
LP		 1786 if (streq_ptr(i->load_state, "failed") ||
1787 streq_ptr(i->load_state, "banned")) {
c31b4423
LP		 1788 on = ansi_highlight(true);
1789 off = ansi_highlight(false);
1790 } else
1791 on = off = "";
1792
1793 if (i->path)
1794 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1795 else
c31b4423 1796 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1797
2ee68f72
LP		 1798 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1799
fdf20a31 1800 if (streq_ptr(i->active_state, "failed")) {
2ee68f72
LP		 1801 on = ansi_highlight(true);
1802 off = ansi_highlight(false);
1803 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1804 on = ansi_highlight_green(true);
1805 off = ansi_highlight_green(false);
1806 } else
1807 on = off = "";
1808
1809 if (ss)
584be568 1810 printf("\t Active: %s%s (%s)%s",
2ee68f72
LP		 1811 on,
1812 strna(i->active_state),
1813 ss,
1814 off);
1815 else
584be568 1816 printf("\t Active: %s%s%s",
2ee68f72
LP		 1817 on,
1818 strna(i->active_state),
1819 off);
61cbdc4b 1820
584be568
LP		 1821 timestamp = (streq_ptr(i->active_state, "active") ||
1822 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1823 (streq_ptr(i->active_state, "inactive") ||
fdf20a31 1824 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
584be568
LP		 1825 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1826 i->active_exit_timestamp;
1827
1828 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1829 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1830
1831 if (s1)
538da63d 1832 printf(" since %s; %s\n", s2, s1);
584be568 1833 else if (s2)
538da63d 1834 printf(" since %s\n", s2);
584be568
LP		 1835 else
1836 printf("\n");
1837
61cbdc4b
LP		 1838 if (i->sysfs_path)
1839 printf("\t Device: %s\n", i->sysfs_path);
9feeba4b 1840 if (i->where)
61cbdc4b 1841 printf("\t Where: %s\n", i->where);
9feeba4b 1842 if (i->what)
61cbdc4b
LP		 1843 printf("\t What: %s\n", i->what);
1844
b8131a87 1845 if (i->accept)
61cbdc4b
LP		 1846 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1847
582a507f
LP		 1848 LIST_FOREACH(exec, p, i->exec) {
1849 char *t;
1850
1851 /* Only show exited processes here */
1852 if (p->code == 0)
1853 continue;
1854
1855 t = strv_join(p->argv, " ");
0129173a 1856 printf("\t Process: %u %s=%s (code=%s, ", p->pid, p->name, strna(t), sigchld_code_to_string(p->code));
582a507f
LP		 1857 free(t);
1858
d06dacd0
LP		 1859 if (p->code == CLD_EXITED) {
1860 const char *c;
1861
582a507f 1862 printf("status=%i", p->status);
d06dacd0 1863
07459bb6 1864#ifdef HAVE_SYSV_COMPAT
d06dacd0 1865 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1866#else
1867 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1868#endif
d06dacd0
LP		 1869 printf("/%s", c);
1870
1871 } else
582a507f
LP		 1872 printf("signal=%s", signal_to_string(p->status));
1873 printf(")\n");
1874
1875 if (i->main_pid == p->pid &&
1876 i->start_timestamp == p->start_timestamp &&
1877 i->exit_timestamp == p->start_timestamp)
1878 /* Let's not show this twice */
1879 i->main_pid = 0;
1880
1881 if (p->pid == i->control_pid)
1882 i->control_pid = 0;
1883 }
1884
61cbdc4b
LP		 1885 if (i->main_pid > 0 || i->control_pid > 0) {
1886 printf("\t");
1887
1888 if (i->main_pid > 0) {
f3d41013 1889 printf("Main PID: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1890
1891 if (i->running) {
1892 char *t = NULL;
1893 get_process_name(i->main_pid, &t);
1894 if (t) {
1895 printf(" (%s)", t);
1896 free(t);
1897 }
6d4fc029 1898 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1899 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1900
d06dacd0
LP		 1901 if (i->exit_code == CLD_EXITED) {
1902 const char *c;
1903
61cbdc4b 1904 printf("status=%i", i->exit_status);
d06dacd0 1905
07459bb6 1906#ifdef HAVE_SYSV_COMPAT
d06dacd0 1907 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1908#else
1909 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
1910#endif
d06dacd0
LP		 1911 printf("/%s", c);
1912
1913 } else
582a507f 1914 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1915 printf(")");
1916 }
61cbdc4b
LP		 1917 }
1918
1919 if (i->main_pid > 0 && i->control_pid > 0)
1920 printf(";");
1921
1922 if (i->control_pid > 0) {
1923 char *t = NULL;
1924
1925 printf(" Control: %u", (unsigned) i->control_pid);
1926
1927 get_process_name(i->control_pid, &t);
1928 if (t) {
1929 printf(" (%s)", t);
1930 free(t);
1931 }
1932 }
1933
1934 printf("\n");
1935 }
1936
17bb7382
LP		 1937 if (i->status_text)
1938 printf("\t Status: \"%s\"\n", i->status_text);
1939
c59760ee 1940 if (i->default_control_group) {
ab35fb1b
LP		 1941 unsigned c;
1942
61cbdc4b 1943 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1944
1945 if ((c = columns()) > 18)
1946 c -= 18;
1947 else
1948 c = 0;
1949
35d2e7ec 1950 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1951 }
45fb0699
LP		 1952
1953 if (i->need_daemon_reload)
2cc59dbf
LP		 1954 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1955 ansi_highlight(true),
1956 ansi_highlight(false),
af2d49f7 1957 arg_user ? "--user" : "--system");
61cbdc4b
LP		 1958}
1959
1960static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1961
1962 switch (dbus_message_iter_get_arg_type(iter)) {
1963
1964 case DBUS_TYPE_STRING: {
1965 const char *s;
1966
1967 dbus_message_iter_get_basic(iter, &s);
1968
1969 if (s[0]) {
1970 if (streq(name, "Id"))
1971 i->id = s;
1972 else if (streq(name, "LoadState"))
1973 i->load_state = s;
1974 else if (streq(name, "ActiveState"))
1975 i->active_state = s;
1976 else if (streq(name, "SubState"))
1977 i->sub_state = s;
1978 else if (streq(name, "Description"))
1979 i->description = s;
1980 else if (streq(name, "FragmentPath"))
c31b4423 1981 i->path = s;
07459bb6 1982#ifdef HAVE_SYSV_COMPAT
d06dacd0
LP		 1983 else if (streq(name, "SysVPath")) {
1984 i->is_sysv = true;
c31b4423 1985 i->path = s;
07459bb6
FF		 1986 }
1987#endif
1988 else if (streq(name, "DefaultControlGroup"))
61cbdc4b
LP		 1989 i->default_control_group = s;
1990 else if (streq(name, "StatusText"))
1991 i->status_text = s;
1992 else if (streq(name, "SysFSPath"))
1993 i->sysfs_path = s;
1994 else if (streq(name, "Where"))
1995 i->where = s;
1996 else if (streq(name, "What"))
1997 i->what = s;
4a9e2fff
LP		 1998 else if (streq(name, "Following"))
1999 i->following = s;
61cbdc4b
LP		 2000 }
2001
2002 break;
2003 }
2004
b8131a87
LP		 2005 case DBUS_TYPE_BOOLEAN: {
2006 dbus_bool_t b;
2007
2008 dbus_message_iter_get_basic(iter, &b);
2009
2010 if (streq(name, "Accept"))
2011 i->accept = b;
45fb0699
LP		 2012 else if (streq(name, "NeedDaemonReload"))
2013 i->need_daemon_reload = b;
b8131a87
LP		 2014
2015 break;
2016 }
2017
61cbdc4b
LP		 2018 case DBUS_TYPE_UINT32: {
2019 uint32_t u;
2020
2021 dbus_message_iter_get_basic(iter, &u);
2022
2023 if (streq(name, "MainPID")) {
2024 if (u > 0) {
2025 i->main_pid = (pid_t) u;
2026 i->running = true;
2027 }
2028 } else if (streq(name, "ControlPID"))
2029 i->control_pid = (pid_t) u;
2030 else if (streq(name, "ExecMainPID")) {
2031 if (u > 0)
2032 i->main_pid = (pid_t) u;
2033 } else if (streq(name, "NAccepted"))
2034 i->n_accepted = u;
2035 else if (streq(name, "NConnections"))
2036 i->n_connections = u;
2037
2038 break;
2039 }
2040
2041 case DBUS_TYPE_INT32: {
2042 int32_t j;
2043
2044 dbus_message_iter_get_basic(iter, &j);
2045
2046 if (streq(name, "ExecMainCode"))
2047 i->exit_code = (int) j;
2048 else if (streq(name, "ExecMainStatus"))
2049 i->exit_status = (int) j;
2050
2051 break;
2052 }
2053
2054 case DBUS_TYPE_UINT64: {
2055 uint64_t u;
2056
2057 dbus_message_iter_get_basic(iter, &u);
2058
2059 if (streq(name, "ExecMainStartTimestamp"))
2060 i->start_timestamp = (usec_t) u;
2061 else if (streq(name, "ExecMainExitTimestamp"))
2062 i->exit_timestamp = (usec_t) u;
584be568
LP		 2063 else if (streq(name, "ActiveEnterTimestamp"))
2064 i->active_enter_timestamp = (usec_t) u;
2065 else if (streq(name, "InactiveEnterTimestamp"))
2066 i->inactive_enter_timestamp = (usec_t) u;
2067 else if (streq(name, "InactiveExitTimestamp"))
2068 i->inactive_exit_timestamp = (usec_t) u;
2069 else if (streq(name, "ActiveExitTimestamp"))
2070 i->active_exit_timestamp = (usec_t) u;
61cbdc4b
LP		 2071
2072 break;
2073 }
582a507f
LP		 2074
2075 case DBUS_TYPE_ARRAY: {
2076
2077 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2078 startswith(name, "Exec")) {
2079 DBusMessageIter sub;
2080
2081 dbus_message_iter_recurse(iter, &sub);
2082 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2083 ExecStatusInfo *info;
2084 int r;
2085
2086 if (!(info = new0(ExecStatusInfo, 1)))
2087 return -ENOMEM;
2088
0129173a
LP		 2089 if (!(info->name = strdup(name))) {
2090 free(info);
2091 return -ENOMEM;
2092 }
2093
582a507f
LP		 2094 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2095 free(info);
2096 return r;
2097 }
2098
2099 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2100
2101 dbus_message_iter_next(&sub);
2102 }
2103 }
2104
2105 break;
2106 }
61cbdc4b
LP		 2107 }
2108
2109 return 0;
2110}
2111
48220598
LP		 2112static int print_property(const char *name, DBusMessageIter *iter) {
2113 assert(name);
2114 assert(iter);
2115
61cbdc4b
LP		 2116 /* This is a low-level property printer, see
2117 * print_status_info() for the nicer output */
2118
ea4a240d 2119 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 2120 return 0;
2121
2122 switch (dbus_message_iter_get_arg_type(iter)) {
2123
2124 case DBUS_TYPE_STRING: {
2125 const char *s;
2126 dbus_message_iter_get_basic(iter, &s);
2127
2128 if (arg_all || s[0])
2129 printf("%s=%s\n", name, s);
2130
2131 return 0;
2132 }
2133
2134 case DBUS_TYPE_BOOLEAN: {
2135 dbus_bool_t b;
2136 dbus_message_iter_get_basic(iter, &b);
2137 printf("%s=%s\n", name, yes_no(b));
2138
2139 return 0;
2140 }
2141
2142 case DBUS_TYPE_UINT64: {
2143 uint64_t u;
2144 dbus_message_iter_get_basic(iter, &u);
2145
2146 /* Yes, heuristics! But we can change this check
2147 * should it turn out to not be sufficient */
2148
14ad1d14 2149 if (strstr(name, "Timestamp")) {
48220598
LP		 2150 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
2151
2152 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
2153 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 2154 } else if (strstr(name, "USec")) {
2155 char timespan[FORMAT_TIMESPAN_MAX];
2156
2157 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 2158 } else
2159 printf("%s=%llu\n", name, (unsigned long long) u);
2160
2161 return 0;
2162 }
2163
2164 case DBUS_TYPE_UINT32: {
2165 uint32_t u;
2166 dbus_message_iter_get_basic(iter, &u);
2167
5bd07073 2168 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 2169 printf("%s=%04o\n", name, u);
2170 else
2171 printf("%s=%u\n", name, (unsigned) u);
2172
2173 return 0;
2174 }
2175
2176 case DBUS_TYPE_INT32: {
2177 int32_t i;
2178 dbus_message_iter_get_basic(iter, &i);
2179
2180 printf("%s=%i\n", name, (int) i);
2181 return 0;
2182 }
2183
05d6a3b6
LP		 2184 case DBUS_TYPE_DOUBLE: {
2185 double d;
2186 dbus_message_iter_get_basic(iter, &d);
2187
2188 printf("%s=%g\n", name, d);
2189 return 0;
2190 }
2191
48220598
LP		 2192 case DBUS_TYPE_STRUCT: {
2193 DBusMessageIter sub;
2194 dbus_message_iter_recurse(iter, &sub);
2195
ebf57b80 2196 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 2197 uint32_t u;
2198
2199 dbus_message_iter_get_basic(&sub, &u);
2200
2201 if (u)
2202 printf("%s=%u\n", name, (unsigned) u);
2203 else if (arg_all)
2204 printf("%s=\n", name);
2205
2206 return 0;
ebf57b80 2207 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 2208 const char *s;
2209
2210 dbus_message_iter_get_basic(&sub, &s);
2211
2212 if (arg_all || s[0])
2213 printf("%s=%s\n", name, s);
2214
2215 return 0;
2216 }
2217
2218 break;
2219 }
2220
2221 case DBUS_TYPE_ARRAY:
2222
2223 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2224 DBusMessageIter sub;
2225 bool space = false;
2226
2227 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 2228 if (arg_all ||
2229 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2230 printf("%s=", name);
2231
2232 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2233 const char *s;
2234
2235 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2236 dbus_message_iter_get_basic(&sub, &s);
2237 printf("%s%s", space ? " " : "", s);
2238
2239 space = true;
2240 dbus_message_iter_next(&sub);
2241 }
2242
2243 puts("");
2244 }
2245
ebf57b80 2246 return 0;
582a507f 2247
82c121a4
LP		 2248 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2249 DBusMessageIter sub;
2250
2251 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 2252 if (arg_all ||
2253 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2254 printf("%s=", name);
2255
2256 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2257 uint8_t u;
ebf57b80 2258
82c121a4
LP		 2259 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2260 dbus_message_iter_get_basic(&sub, &u);
2261 printf("%02x", u);
2262
2263 dbus_message_iter_next(&sub);
2264 }
2265
2266 puts("");
2267 }
2268
2269 return 0;
582a507f 2270
ebf57b80
LP		 2271 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2272 DBusMessageIter sub, sub2;
2273
2274 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 2275 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2276 const char *type, *path;
2277
2278 dbus_message_iter_recurse(&sub, &sub2);
2279
2280 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2281 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2282 printf("%s=%s\n", type, path);
2283
2284 dbus_message_iter_next(&sub);
2285 }
2286
707e5e52 2287 return 0;
582a507f 2288
707e5e52
LP		 2289 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2290 DBusMessageIter sub, sub2;
2291
2292 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 2293 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2294 const char *base;
2295 uint64_t value, next_elapse;
2296
2297 dbus_message_iter_recurse(&sub, &sub2);
2298
2299 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2300 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 2301 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2302 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2303
2304 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 2305 base,
552e4331
LP		 2306 format_timespan(timespan1, sizeof(timespan1), value),
2307 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2308 }
fe68089d
LP		 2309
2310 dbus_message_iter_next(&sub);
2311 }
2312
2313 return 0;
fe68089d 2314
582a507f
LP		 2315 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2316 DBusMessageIter sub;
fe68089d
LP		 2317
2318 dbus_message_iter_recurse(iter, &sub);
fe68089d 2319 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 2320 ExecStatusInfo info;
fe68089d 2321
582a507f
LP		 2322 zero(info);
2323 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 2324 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 2325 char *t;
2326
2327 t = strv_join(info.argv, " ");
2328
b708e7ce 2329 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		 2330 name,
2331 strna(info.path),
2332 strna(t),
b708e7ce 2333 yes_no(info.ignore),
582a507f
LP		 2334 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2335 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2336 (unsigned) info. pid,
2337 sigchld_code_to_string(info.code),
2338 info.status,
2339 info.code == CLD_EXITED ? "" : "/",
2340 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 2341
582a507f 2342 free(t);
fe68089d
LP		 2343 }
2344
582a507f
LP		 2345 free(info.path);
2346 strv_free(info.argv);
707e5e52
LP		 2347
2348 dbus_message_iter_next(&sub);
2349 }
2350
48220598
LP		 2351 return 0;
2352 }
2353
2354 break;
2355 }
2356
2357 if (arg_all)
2358 printf("%s=[unprintable]\n", name);
2359
2360 return 0;
2361}
2362
be8088a2 2363static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 2364 DBusMessage *m = NULL, *reply = NULL;
2365 const char *interface = "";
2366 int r;
2367 DBusError error;
2368 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 2369 UnitStatusInfo info;
582a507f 2370 ExecStatusInfo *p;
48220598
LP		 2371
2372 assert(bus);
2373 assert(path);
61cbdc4b 2374 assert(new_line);
48220598 2375
61cbdc4b 2376 zero(info);
48220598
LP		 2377 dbus_error_init(&error);
2378
2379 if (!(m = dbus_message_new_method_call(
2380 "org.freedesktop.systemd1",
2381 path,
2382 "org.freedesktop.DBus.Properties",
2383 "GetAll"))) {
2384 log_error("Could not allocate message.");
2385 r = -ENOMEM;
2386 goto finish;
2387 }
2388
2389 if (!dbus_message_append_args(m,
2390 DBUS_TYPE_STRING, &interface,
2391 DBUS_TYPE_INVALID)) {
2392 log_error("Could not append arguments to message.");
2393 r = -ENOMEM;
2394 goto finish;
2395 }
2396
2397 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2398 log_error("Failed to issue method call: %s", bus_error_message(&error));
48220598
LP		 2399 r = -EIO;
2400 goto finish;
2401 }
2402
2403 if (!dbus_message_iter_init(reply, &iter) ||
2404 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2405 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2406 log_error("Failed to parse reply.");
2407 r = -EIO;
2408 goto finish;
2409 }
2410
2411 dbus_message_iter_recurse(&iter, &sub);
2412
61cbdc4b
LP		 2413 if (*new_line)
2414 printf("\n");
2415
2416 *new_line = true;
2417
48220598
LP		 2418 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2419 const char *name;
2420
2421 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2422 log_error("Failed to parse reply.");
2423 r = -EIO;
2424 goto finish;
2425 }
2426
2427 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2428
48220598
LP		 2429 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2430 log_error("Failed to parse reply.");
2431 r = -EIO;
2432 goto finish;
2433 }
2434
2435 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2436 log_error("Failed to parse reply.");
2437 r = -EIO;
2438 goto finish;
2439 }
2440
2441 dbus_message_iter_recurse(&sub2, &sub3);
2442
61cbdc4b
LP		 2443 if (show_properties)
2444 r = print_property(name, &sub3);
2445 else
2446 r = status_property(name, &sub3, &info);
2447
2448 if (r < 0) {
48220598
LP		 2449 log_error("Failed to parse reply.");
2450 r = -EIO;
2451 goto finish;
2452 }
2453
2454 dbus_message_iter_next(&sub);
2455 }
2456
f1e36d67
LP		 2457 r = 0;
2458
22f4096c
LP		 2459 if (!show_properties)
2460 print_status_info(&info);
f1e36d67 2461
22f4096c 2462 if (!streq_ptr(info.active_state, "active") &&
be8088a2
LP		 2463 !streq_ptr(info.active_state, "reloading") &&
2464 streq(verb, "status"))
22f4096c
LP		 2465 /* According to LSB: "program not running" */
2466 r = 3;
61cbdc4b 2467
582a507f
LP		 2468 while ((p = info.exec)) {
2469 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2470 exec_status_info_free(p);
2471 }
2472
48220598
LP		 2473finish:
2474 if (m)
2475 dbus_message_unref(m);
2476
2477 if (reply)
2478 dbus_message_unref(reply);
2479
2480 dbus_error_free(&error);
2481
2482 return r;
2483}
2484
2485static int show(DBusConnection *bus, char **args, unsigned n) {
2486 DBusMessage *m = NULL, *reply = NULL;
22f4096c 2487 int r, ret = 0;
48220598
LP		 2488 DBusError error;
2489 unsigned i;
61cbdc4b 2490 bool show_properties, new_line = false;
48220598
LP		 2491
2492 assert(bus);
2493 assert(args);
2494
2495 dbus_error_init(&error);
2496
61cbdc4b
LP		 2497 show_properties = !streq(args[0], "status");
2498
ec14911e
LP		 2499 if (show_properties)
2500 pager_open();
2501
61cbdc4b 2502 if (show_properties && n <= 1) {
48220598
LP		 2503 /* If not argument is specified inspect the manager
2504 * itself */
2505
be8088a2 2506 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2507 goto finish;
2508 }
2509
2510 for (i = 1; i < n; i++) {
2511 const char *path = NULL;
2512 uint32_t id;
2513
598b557b
LP		 2514 if (safe_atou32(args[i], &id) < 0) {
2515
2516 /* Interpret as unit name */
48220598
LP		 2517
2518 if (!(m = dbus_message_new_method_call(
2519 "org.freedesktop.systemd1",
2520 "/org/freedesktop/systemd1",
2521 "org.freedesktop.systemd1.Manager",
e87d1818 2522 "LoadUnit"))) {
48220598 2523 log_error("Could not allocate message.");
22f4096c 2524 ret = -ENOMEM;
48220598
LP		 2525 goto finish;
2526 }
2527
2528 if (!dbus_message_append_args(m,
2529 DBUS_TYPE_STRING, &args[i],
2530 DBUS_TYPE_INVALID)) {
2531 log_error("Could not append arguments to message.");
22f4096c 2532 ret = -ENOMEM;
48220598
LP		 2533 goto finish;
2534 }
2535
ed2d7a44
LP		 2536 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2537
2538 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
4cf5d675 2539 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2540 ret = -EIO;
ed2d7a44
LP		 2541 goto finish;
2542 }
2543
2544 dbus_error_free(&error);
2545
2546 dbus_message_unref(m);
2547 if (!(m = dbus_message_new_method_call(
2548 "org.freedesktop.systemd1",
2549 "/org/freedesktop/systemd1",
2550 "org.freedesktop.systemd1.Manager",
2551 "GetUnit"))) {
2552 log_error("Could not allocate message.");
22f4096c 2553 ret = -ENOMEM;
ed2d7a44
LP		 2554 goto finish;
2555 }
2556
2557 if (!dbus_message_append_args(m,
2558 DBUS_TYPE_STRING, &args[i],
2559 DBUS_TYPE_INVALID)) {
2560 log_error("Could not append arguments to message.");
22f4096c 2561 ret = -ENOMEM;
ed2d7a44
LP		 2562 goto finish;
2563 }
2564
2565 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2566 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c
LP		 2567
2568 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2569 ret = 4; /* According to LSB: "program or service status is unknown" */
2570 else
2571 ret = -EIO;
ed2d7a44
LP		 2572 goto finish;
2573 }
2574 }
2575
598b557b
LP		 2576 } else if (show_properties) {
2577
2578 /* Interpret as job id */
48220598
LP		 2579
2580 if (!(m = dbus_message_new_method_call(
2581 "org.freedesktop.systemd1",
2582 "/org/freedesktop/systemd1",
2583 "org.freedesktop.systemd1.Manager",
2584 "GetJob"))) {
2585 log_error("Could not allocate message.");
22f4096c 2586 ret = -ENOMEM;
48220598
LP		 2587 goto finish;
2588 }
2589
2590 if (!dbus_message_append_args(m,
2591 DBUS_TYPE_UINT32, &id,
2592 DBUS_TYPE_INVALID)) {
2593 log_error("Could not append arguments to message.");
22f4096c 2594 ret = -ENOMEM;
48220598
LP		 2595 goto finish;
2596 }
48220598 2597
598b557b 2598 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2599 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2600 ret = -EIO;
598b557b
LP		 2601 goto finish;
2602 }
2603 } else {
2604
2605 /* Interpret as PID */
2606
2607 if (!(m = dbus_message_new_method_call(
2608 "org.freedesktop.systemd1",
2609 "/org/freedesktop/systemd1",
2610 "org.freedesktop.systemd1.Manager",
2611 "GetUnitByPID"))) {
2612 log_error("Could not allocate message.");
22f4096c 2613 ret = -ENOMEM;
598b557b
LP		 2614 goto finish;
2615 }
2616
2617 if (!dbus_message_append_args(m,
2618 DBUS_TYPE_UINT32, &id,
2619 DBUS_TYPE_INVALID)) {
2620 log_error("Could not append arguments to message.");
22f4096c 2621 ret = -ENOMEM;
598b557b
LP		 2622 goto finish;
2623 }
2624
ed2d7a44 2625 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2626 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2627 ret = -EIO;
ed2d7a44
LP		 2628 goto finish;
2629 }
48220598
LP		 2630 }
2631
2632 if (!dbus_message_get_args(reply, &error,
2633 DBUS_TYPE_OBJECT_PATH, &path,
2634 DBUS_TYPE_INVALID)) {
4cf5d675 2635 log_error("Failed to parse reply: %s", bus_error_message(&error));
22f4096c 2636 ret = -EIO;
48220598
LP		 2637 goto finish;
2638 }
2639
be8088a2 2640 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
22f4096c 2641 ret = r;
48220598
LP		 2642
2643 dbus_message_unref(m);
2644 dbus_message_unref(reply);
2645 m = reply = NULL;
2646 }
2647
48220598
LP		 2648finish:
2649 if (m)
2650 dbus_message_unref(m);
2651
2652 if (reply)
2653 dbus_message_unref(reply);
2654
2655 dbus_error_free(&error);
2656
22f4096c 2657 return ret;
0183528f
LP		 2658}
2659
7e4249b9
LP		 2660static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2661 DBusError error;
2662 DBusMessage *m = NULL, *reply = NULL;
2663
2664 assert(connection);
2665 assert(message);
2666
2667 dbus_error_init(&error);
2668
54165a39
LP		 2669 log_debug("Got D-Bus request: %s.%s() on %s",
2670 dbus_message_get_interface(message),
2671 dbus_message_get_member(message),
2672 dbus_message_get_path(message));
7e4249b9
LP		 2673
2674 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2675 log_error("Warning! D-Bus connection terminated.");
2676 dbus_connection_close(connection);
2677
2678 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2679 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2680 const char *id, *path;
2681
2682 if (!dbus_message_get_args(message, &error,
2683 DBUS_TYPE_STRING, &id,
2684 DBUS_TYPE_OBJECT_PATH, &path,
2685 DBUS_TYPE_INVALID))
4cf5d675 2686 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2687 else if (streq(dbus_message_get_member(message), "UnitNew"))
2688 printf("Unit %s added.\n", id);
2689 else
2690 printf("Unit %s removed.\n", id);
2691
2692 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2693 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2694 uint32_t id;
2695 const char *path;
2696
2697 if (!dbus_message_get_args(message, &error,
2698 DBUS_TYPE_UINT32, &id,
2699 DBUS_TYPE_OBJECT_PATH, &path,
2700 DBUS_TYPE_INVALID))
4cf5d675 2701 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2702 else if (streq(dbus_message_get_member(message), "JobNew"))
2703 printf("Job %u added.\n", id);
2704 else
2705 printf("Job %u removed.\n", id);
2706
2707
c4e2ceae 2708 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
7e4249b9
LP		 2709
2710 const char *path, *interface, *property = "Id";
2711 DBusMessageIter iter, sub;
2712
2713 path = dbus_message_get_path(message);
c4e2ceae
LP		 2714
2715 if (!dbus_message_get_args(message, &error,
2716 DBUS_TYPE_STRING, &interface,
2717 DBUS_TYPE_INVALID)) {
4cf5d675 2718 log_error("Failed to parse message: %s", bus_error_message(&error));
c4e2ceae
LP		 2719 goto finish;
2720 }
2721
2722 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2723 !streq(interface, "org.freedesktop.systemd1.Unit"))
2724 goto finish;
7e4249b9
LP		 2725
2726 if (!(m = dbus_message_new_method_call(
2727 "org.freedesktop.systemd1",
2728 path,
2729 "org.freedesktop.DBus.Properties",
2730 "Get"))) {
2731 log_error("Could not allocate message.");
2732 goto oom;
2733 }
2734
2735 if (!dbus_message_append_args(m,
2736 DBUS_TYPE_STRING, &interface,
2737 DBUS_TYPE_STRING, &property,
2738 DBUS_TYPE_INVALID)) {
2739 log_error("Could not append arguments to message.");
2740 goto finish;
2741 }
2742
2743 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
4cf5d675 2744 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2745 goto finish;
2746 }
2747
2748 if (!dbus_message_iter_init(reply, &iter) ||
2749 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2750 log_error("Failed to parse reply.");
2751 goto finish;
2752 }
2753
2754 dbus_message_iter_recurse(&iter, &sub);
2755
2756 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2757 const char *id;
2758
2759 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2760 log_error("Failed to parse reply.");
2761 goto finish;
2762 }
2763
2764 dbus_message_iter_get_basic(&sub, &id);
2765 printf("Unit %s changed.\n", id);
2766 } else {
2767 uint32_t id;
2768
2769 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2770 log_error("Failed to parse reply.");
2771 goto finish;
2772 }
2773
2774 dbus_message_iter_get_basic(&sub, &id);
2775 printf("Job %u changed.\n", id);
2776 }
2777 }
2778
2779finish:
2780 if (m)
2781 dbus_message_unref(m);
2782
2783 if (reply)
2784 dbus_message_unref(reply);
2785
2786 dbus_error_free(&error);
2787 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2788
2789oom:
2790 if (m)
2791 dbus_message_unref(m);
2792
2793 if (reply)
2794 dbus_message_unref(reply);
2795
2796 dbus_error_free(&error);
2797 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2798}
2799
2800static int monitor(DBusConnection *bus, char **args, unsigned n) {
2801 DBusMessage *m = NULL, *reply = NULL;
2802 DBusError error;
2803 int r;
2804
2805 dbus_error_init(&error);
2806
f4579ce7
LP		 2807 if (!private_bus) {
2808 dbus_bus_add_match(bus,
2809 "type='signal',"
2810 "sender='org.freedesktop.systemd1',"
2811 "interface='org.freedesktop.systemd1.Manager',"
2812 "path='/org/freedesktop/systemd1'",
2813 &error);
7e4249b9 2814
f4579ce7 2815 if (dbus_error_is_set(&error)) {
4cf5d675 2816 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2817 r = -EIO;
2818 goto finish;
2819 }
7e4249b9 2820
f4579ce7
LP		 2821 dbus_bus_add_match(bus,
2822 "type='signal',"
2823 "sender='org.freedesktop.systemd1',"
c4e2ceae
LP		 2824 "interface='org.freedesktop.DBus.Properties',"
2825 "member='PropertiesChanged'",
f4579ce7 2826 &error);
7e4249b9 2827
f4579ce7 2828 if (dbus_error_is_set(&error)) {
4cf5d675 2829 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2830 r = -EIO;
2831 goto finish;
2832 }
7e4249b9
LP		 2833 }
2834
2835 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2836 log_error("Failed to add filter.");
2837 r = -ENOMEM;
2838 goto finish;
2839 }
2840
2841 if (!(m = dbus_message_new_method_call(
2842 "org.freedesktop.systemd1",
2843 "/org/freedesktop/systemd1",
2844 "org.freedesktop.systemd1.Manager",
2845 "Subscribe"))) {
2846 log_error("Could not allocate message.");
2847 r = -ENOMEM;
2848 goto finish;
2849 }
2850
2851 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2852 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2853 r = -EIO;
2854 goto finish;
2855 }
2856
2857 while (dbus_connection_read_write_dispatch(bus, -1))
2858 ;
2859
2860 r = 0;
2861
2862finish:
2863
2864 /* This is slightly dirty, since we don't undo the filter or the matches. */
2865
2866 if (m)
2867 dbus_message_unref(m);
2868
2869 if (reply)
2870 dbus_message_unref(reply);
2871
2872 dbus_error_free(&error);
2873
2874 return r;
2875}
2876
2877static int dump(DBusConnection *bus, char **args, unsigned n) {
2878 DBusMessage *m = NULL, *reply = NULL;
2879 DBusError error;
2880 int r;
2881 const char *text;
2882
2883 dbus_error_init(&error);
2884
ec14911e
LP		 2885 pager_open();
2886
7e4249b9
LP		 2887 if (!(m = dbus_message_new_method_call(
2888 "org.freedesktop.systemd1",
2889 "/org/freedesktop/systemd1",
2890 "org.freedesktop.systemd1.Manager",
2891 "Dump"))) {
2892 log_error("Could not allocate message.");
2893 return -ENOMEM;
2894 }
2895
2896 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2897 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2898 r = -EIO;
2899 goto finish;
2900 }
2901
2902 if (!dbus_message_get_args(reply, &error,
2903 DBUS_TYPE_STRING, &text,
2904 DBUS_TYPE_INVALID)) {
4cf5d675 2905 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2906 r = -EIO;
2907 goto finish;
2908 }
2909
2910 fputs(text, stdout);
2911
2912 r = 0;
2913
2914finish:
2915 if (m)
2916 dbus_message_unref(m);
2917
2918 if (reply)
2919 dbus_message_unref(reply);
2920
2921 dbus_error_free(&error);
2922
2923 return r;
2924}
2925
2926static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2927 DBusMessage *m = NULL, *reply = NULL;
2928 DBusError error;
2929 int r;
2930 const char *name = "", *path, *id;
2931 dbus_bool_t cleanup = FALSE;
2932 DBusMessageIter iter, sub;
2933 const char
2934 *interface = "org.freedesktop.systemd1.Unit",
2935 *property = "Id";
2936
2937 dbus_error_init(&error);
2938
2939 if (!(m = dbus_message_new_method_call(
2940 "org.freedesktop.systemd1",
2941 "/org/freedesktop/systemd1",
2942 "org.freedesktop.systemd1.Manager",
2943 "CreateSnapshot"))) {
2944 log_error("Could not allocate message.");
2945 return -ENOMEM;
2946 }
2947
2948 if (n > 1)
2949 name = args[1];
2950
2951 if (!dbus_message_append_args(m,
2952 DBUS_TYPE_STRING, &name,
2953 DBUS_TYPE_BOOLEAN, &cleanup,
2954 DBUS_TYPE_INVALID)) {
2955 log_error("Could not append arguments to message.");
2956 r = -ENOMEM;
2957 goto finish;
2958 }
2959
2960 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2961 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2962 r = -EIO;
2963 goto finish;
2964 }
2965
2966 if (!dbus_message_get_args(reply, &error,
2967 DBUS_TYPE_OBJECT_PATH, &path,
2968 DBUS_TYPE_INVALID)) {
4cf5d675 2969 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2970 r = -EIO;
2971 goto finish;
2972 }
2973
2974 dbus_message_unref(m);
2975 if (!(m = dbus_message_new_method_call(
2976 "org.freedesktop.systemd1",
2977 path,
2978 "org.freedesktop.DBus.Properties",
2979 "Get"))) {
2980 log_error("Could not allocate message.");
2981 return -ENOMEM;
2982 }
2983
2984 if (!dbus_message_append_args(m,
2985 DBUS_TYPE_STRING, &interface,
2986 DBUS_TYPE_STRING, &property,
2987 DBUS_TYPE_INVALID)) {
2988 log_error("Could not append arguments to message.");
2989 r = -ENOMEM;
2990 goto finish;
2991 }
2992
2993 dbus_message_unref(reply);
2994 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2995 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2996 r = -EIO;
2997 goto finish;
2998 }
2999
3000 if (!dbus_message_iter_init(reply, &iter) ||
3001 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3002 log_error("Failed to parse reply.");
3003 r = -EIO;
3004 goto finish;
3005 }
3006
3007 dbus_message_iter_recurse(&iter, &sub);
3008
3009 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3010 log_error("Failed to parse reply.");
3011 r = -EIO;
3012 goto finish;
3013 }
3014
3015 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 3016
3017 if (!arg_quiet)
3018 puts(id);
7e4249b9
LP		 3019 r = 0;
3020
3021finish:
3022 if (m)
3023 dbus_message_unref(m);
3024
3025 if (reply)
3026 dbus_message_unref(reply);
3027
3028 dbus_error_free(&error);
3029
3030 return r;
3031}
3032
6759e7a7
LP		 3033static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
3034 DBusMessage *m = NULL, *reply = NULL;
3035 int r;
3036 DBusError error;
3037 unsigned i;
3038
3039 assert(bus);
3040 assert(args);
3041
3042 dbus_error_init(&error);
3043
3044 for (i = 1; i < n; i++) {
3045 const char *path = NULL;
3046
3047 if (!(m = dbus_message_new_method_call(
3048 "org.freedesktop.systemd1",
3049 "/org/freedesktop/systemd1",
3050 "org.freedesktop.systemd1.Manager",
3051 "GetUnit"))) {
3052 log_error("Could not allocate message.");
3053 r = -ENOMEM;
3054 goto finish;
3055 }
3056
3057 if (!dbus_message_append_args(m,
3058 DBUS_TYPE_STRING, &args[i],
3059 DBUS_TYPE_INVALID)) {
3060 log_error("Could not append arguments to message.");
3061 r = -ENOMEM;
3062 goto finish;
3063 }
3064
3065 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3066 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3067 r = -EIO;
3068 goto finish;
3069 }
3070
3071 if (!dbus_message_get_args(reply, &error,
3072 DBUS_TYPE_OBJECT_PATH, &path,
3073 DBUS_TYPE_INVALID)) {
4cf5d675 3074 log_error("Failed to parse reply: %s", bus_error_message(&error));
6759e7a7
LP		 3075 r = -EIO;
3076 goto finish;
3077 }
3078
3079 dbus_message_unref(m);
3080 if (!(m = dbus_message_new_method_call(
3081 "org.freedesktop.systemd1",
3082 path,
3083 "org.freedesktop.systemd1.Snapshot",
3084 "Remove"))) {
3085 log_error("Could not allocate message.");
3086 r = -ENOMEM;
3087 goto finish;
3088 }
3089
3090 dbus_message_unref(reply);
3091 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3092 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3093 r = -EIO;
3094 goto finish;
3095 }
3096
3097 dbus_message_unref(m);
3098 dbus_message_unref(reply);
3099 m = reply = NULL;
3100 }
3101
3102 r = 0;
3103
3104finish:
3105 if (m)
3106 dbus_message_unref(m);
3107
3108 if (reply)
3109 dbus_message_unref(reply);
3110
3111 dbus_error_free(&error);
3112
3113 return r;
3114}
3115
ee5762e3 3116static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 3117 DBusMessage *m = NULL, *reply = NULL;
3118 DBusError error;
3119 int r;
3120 const char *method;
3121
3122 dbus_error_init(&error);
3123
e4b61340
LP		 3124 if (arg_action == ACTION_RELOAD)
3125 method = "Reload";
3126 else if (arg_action == ACTION_REEXEC)
3127 method = "Reexecute";
3128 else {
3129 assert(arg_action == ACTION_SYSTEMCTL);
3130
3131 method =
20b09ca7
LP		 3132 streq(args[0], "clear-jobs") ||
3133 streq(args[0], "cancel") ? "ClearJobs" :
3134 streq(args[0], "daemon-reexec") ? "Reexecute" :
3135 streq(args[0], "reset-failed") ? "ResetFailed" :
3136 streq(args[0], "halt") ? "Halt" :
3137 streq(args[0], "poweroff") ? "PowerOff" :
3138 streq(args[0], "reboot") ? "Reboot" :
3139 streq(args[0], "kexec") ? "KExec" :
3140 streq(args[0], "exit") ? "Exit" :
3141 /* "daemon-reload" */ "Reload";
e4b61340 3142 }
7e4249b9
LP		 3143
3144 if (!(m = dbus_message_new_method_call(
3145 "org.freedesktop.systemd1",
3146 "/org/freedesktop/systemd1",
3147 "org.freedesktop.systemd1.Manager",
3148 method))) {
3149 log_error("Could not allocate message.");
3150 return -ENOMEM;
3151 }
3152
3153 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 3154
3155 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3156 /* There's always a fallback possible for
3157 * legacy actions. */
aabd9b11 3158 r = -EADDRNOTAVAIL;
e4b61340
LP		 3159 goto finish;
3160 }
3161
4cf5d675 3162 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3163 r = -EIO;
3164 goto finish;
3165 }
3166
aabd9b11 3167 r = 0;
7e4249b9
LP		 3168
3169finish:
3170 if (m)
3171 dbus_message_unref(m);
3172
3173 if (reply)
3174 dbus_message_unref(reply);
3175
3176 dbus_error_free(&error);
3177
3178 return r;
3179}
3180
fdf20a31 3181static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
5632e374
LP		 3182 DBusMessage *m = NULL, *reply = NULL;
3183 unsigned i;
3184 int r;
3185 DBusError error;
3186
3187 assert(bus);
3188 dbus_error_init(&error);
3189
3190 if (n <= 1)
ee5762e3 3191 return daemon_reload(bus, args, n);
5632e374
LP		 3192
3193 for (i = 1; i < n; i++) {
3194
3195 if (!(m = dbus_message_new_method_call(
3196 "org.freedesktop.systemd1",
3197 "/org/freedesktop/systemd1",
3198 "org.freedesktop.systemd1.Manager",
fdf20a31 3199 "ResetFailedUnit"))) {
5632e374
LP		 3200 log_error("Could not allocate message.");
3201 r = -ENOMEM;
3202 goto finish;
3203 }
3204
3205 if (!dbus_message_append_args(m,
3206 DBUS_TYPE_STRING, args + i,
3207 DBUS_TYPE_INVALID)) {
3208 log_error("Could not append arguments to message.");
3209 r = -ENOMEM;
3210 goto finish;
3211 }
3212
3213 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3214 log_error("Failed to issue method call: %s", bus_error_message(&error));
5632e374
LP		 3215 r = -EIO;
3216 goto finish;
3217 }
3218
3219 dbus_message_unref(m);
3220 dbus_message_unref(reply);
3221 m = reply = NULL;
3222 }
3223
3224 r = 0;
3225
3226finish:
3227 if (m)
3228 dbus_message_unref(m);
3229
3230 if (reply)
3231 dbus_message_unref(reply);
3232
3233 dbus_error_free(&error);
3234
3235 return r;
3236}
3237
7e4249b9
LP		 3238static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3239 DBusMessage *m = NULL, *reply = NULL;
3240 DBusError error;
3241 DBusMessageIter iter, sub, sub2;
3242 int r;
3243 const char
3244 *interface = "org.freedesktop.systemd1.Manager",
3245 *property = "Environment";
3246
3247 dbus_error_init(&error);
3248
ec14911e
LP		 3249 pager_open();
3250
7e4249b9
LP		 3251 if (!(m = dbus_message_new_method_call(
3252 "org.freedesktop.systemd1",
3253 "/org/freedesktop/systemd1",
3254 "org.freedesktop.DBus.Properties",
3255 "Get"))) {
3256 log_error("Could not allocate message.");
3257 return -ENOMEM;
3258 }
3259
3260 if (!dbus_message_append_args(m,
3261 DBUS_TYPE_STRING, &interface,
3262 DBUS_TYPE_STRING, &property,
3263 DBUS_TYPE_INVALID)) {
3264 log_error("Could not append arguments to message.");
3265 r = -ENOMEM;
3266 goto finish;
3267 }
3268
3269 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3270 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3271 r = -EIO;
3272 goto finish;
3273 }
3274
3275 if (!dbus_message_iter_init(reply, &iter) ||
3276 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3277 log_error("Failed to parse reply.");
3278 r = -EIO;
3279 goto finish;
3280 }
3281
3282 dbus_message_iter_recurse(&iter, &sub);
3283
3284 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3285 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3286 log_error("Failed to parse reply.");
3287 r = -EIO;
3288 goto finish;
3289 }
3290
3291 dbus_message_iter_recurse(&sub, &sub2);
3292
3293 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3294 const char *text;
3295
3296 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3297 log_error("Failed to parse reply.");
3298 r = -EIO;
3299 goto finish;
3300 }
3301
3302 dbus_message_iter_get_basic(&sub2, &text);
3303 printf("%s\n", text);
3304
3305 dbus_message_iter_next(&sub2);
3306 }
3307
3308 r = 0;
3309
3310finish:
3311 if (m)
3312 dbus_message_unref(m);
3313
3314 if (reply)
3315 dbus_message_unref(reply);
3316
3317 dbus_error_free(&error);
3318
3319 return r;
3320}
3321
3322static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3323 DBusMessage *m = NULL, *reply = NULL;
3324 DBusError error;
3325 int r;
3326 const char *method;
3327 DBusMessageIter iter, sub;
3328 unsigned i;
3329
3330 dbus_error_init(&error);
3331
3332 method = streq(args[0], "set-environment")
3333 ? "SetEnvironment"
3334 : "UnsetEnvironment";
3335
3336 if (!(m = dbus_message_new_method_call(
3337 "org.freedesktop.systemd1",
3338 "/org/freedesktop/systemd1",
3339 "org.freedesktop.systemd1.Manager",
3340 method))) {
3341
3342 log_error("Could not allocate message.");
3343 return -ENOMEM;
3344 }
3345
3346 dbus_message_iter_init_append(m, &iter);
3347
3348 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3349 log_error("Could not append arguments to message.");
3350 r = -ENOMEM;
3351 goto finish;
3352 }
3353
3354 for (i = 1; i < n; i++)
3355 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3356 log_error("Could not append arguments to message.");
3357 r = -ENOMEM;
3358 goto finish;
3359 }
3360
3361 if (!dbus_message_iter_close_container(&iter, &sub)) {
3362 log_error("Could not append arguments to message.");
3363 r = -ENOMEM;
3364 goto finish;
3365 }
3366
3367 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3368 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3369 r = -EIO;
3370 goto finish;
3371 }
3372
3373 r = 0;
3374
3375finish:
3376 if (m)
3377 dbus_message_unref(m);
3378
3379 if (reply)
3380 dbus_message_unref(reply);
3381
3382 dbus_error_free(&error);
3383
3384 return r;
3385}
3386
ee5762e3
LP		 3387typedef struct {
3388 char *name;
3389 char *path;
3390
3391 char **aliases;
3392 char **wanted_by;
3393} InstallInfo;
3394
3395static Hashmap *will_install = NULL, *have_installed = NULL;
3396static Set *remove_symlinks_to = NULL;
560d8f23 3397static unsigned n_symlinks = 0;
ee5762e3
LP		 3398
3399static void install_info_free(InstallInfo *i) {
3400 assert(i);
3401
3402 free(i->name);
3403 free(i->path);
3404 strv_free(i->aliases);
3405 strv_free(i->wanted_by);
3406 free(i);
3407}
3408
3409static void install_info_hashmap_free(Hashmap *m) {
3410 InstallInfo *i;
3411
3412 while ((i = hashmap_steal_first(m)))
3413 install_info_free(i);
3414
3415 hashmap_free(m);
3416}
3417
ee5762e3
LP		 3418static int install_info_add(const char *name) {
3419 InstallInfo *i;
3420 int r;
3421
3422 assert(will_install);
3423
b9c0d441 3424 if (!unit_name_is_valid_no_type(name, true)) {
71fad675 3425 log_warning("Unit name %s is not a valid unit name.", name);
ee5762e3 3426 return -EINVAL;
71fad675 3427 }
ee5762e3
LP		 3428
3429 if (hashmap_get(have_installed, name) ||
3430 hashmap_get(will_install, name))
3431 return 0;
3432
3433 if (!(i = new0(InstallInfo, 1))) {
3434 r = -ENOMEM;
3435 goto fail;
3436 }
3437
3438 if (!(i->name = strdup(name))) {
3439 r = -ENOMEM;
3440 goto fail;
3441 }
3442
3443 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3444 goto fail;
3445
3446 return 0;
3447
3448fail:
3449 if (i)
3450 install_info_free(i);
3451
3452 return r;
3453}
3454
3455static int config_parse_also(
3456 const char *filename,
3457 unsigned line,
3458 const char *section,
3459 const char *lvalue,
3460 const char *rvalue,
3461 void *data,
3462 void *userdata) {
3463
3464 char *w;
3465 size_t l;
3466 char *state;
3467
3468 assert(filename);
3469 assert(lvalue);
3470 assert(rvalue);
3471
3472 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3473 char *n;
3474 int r;
3475
3476 if (!(n = strndup(w, l)))
3477 return -ENOMEM;
3478
71fad675
LP		 3479 if ((r = install_info_add(n)) < 0) {
3480 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3481 free(n);
ee5762e3 3482 return r;
71fad675
LP		 3483 }
3484
3485 free(n);
ee5762e3
LP		 3486 }
3487
3488 return 0;
3489}
3490
3491static int mark_symlink_for_removal(const char *p) {
3492 char *n;
3493 int r;
3494
3495 assert(p);
3496 assert(path_is_absolute(p));
3497
3498 if (!remove_symlinks_to)
3499 return 0;
3500
3501 if (!(n = strdup(p)))
3502 return -ENOMEM;
3503
3504 path_kill_slashes(n);
3505
3506 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3507 free(n);
3508 return r == -EEXIST ? 0 : r;
3509 }
3510
3511 return 0;
3512}
3513
3514static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3515 int r = 0;
3516 DIR *d;
3517 struct dirent *de;
3518
3519 assert(fd >= 0);
3520 assert(root);
3521 assert(deleted);
3522
3523 if (!(d = fdopendir(fd))) {
3524 close_nointr_nofail(fd);
3525 return -errno;
3526 }
3527
3528 rewinddir(d);
3529
3530 while ((de = readdir(d))) {
3531 bool is_dir = false, is_link = false;
3532
3533 if (ignore_file(de->d_name))
3534 continue;
3535
3536 if (de->d_type == DT_LNK)
3537 is_link = true;
3538 else if (de->d_type == DT_DIR)
3539 is_dir = true;
3540 else if (de->d_type == DT_UNKNOWN) {
3541 struct stat st;
3542
3543 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3544 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3545
3546 if (r == 0)
3547 r = -errno;
3548 continue;
3549 }
3550
3551 is_link = S_ISLNK(st.st_mode);
3552 is_dir = S_ISDIR(st.st_mode);
3553 } else
3554 continue;
3555
3556 if (is_dir) {
3557 int nfd, q;
3558 char *p;
3559
3560 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3561 log_error("Failed to open %s/%s: %m", root, de->d_name);
3562
3563 if (r == 0)
3564 r = -errno;
3565 continue;
3566 }
3567
3568 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3569 log_error("Failed to allocate directory string.");
3570 close_nointr_nofail(nfd);
3571 r = -ENOMEM;
3572 break;
3573 }
3574
3575 /* This will close nfd, regardless whether it succeeds or not */
3576 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3577 free(p);
3578
3579 if (r == 0)
e364ad06 3580 r = q;
ee5762e3
LP		 3581
3582 } else if (is_link) {
3583 char *p, *dest, *c;
3584 int q;
3585
3586 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3587 log_error("Failed to allocate symlink string.");
3588 r = -ENOMEM;
3589 break;
3590 }
3591
3592 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3593 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3594 free(p);
3595
3596 if (r == 0)
3597 r = q;
3598 continue;
3599 }
3600
3601 if ((c = canonicalize_file_name(dest))) {
3602 /* This might fail if the destination
3603 * is already removed */
3604
3605 free(dest);
3606 dest = c;
3607 }
3608
3609 path_kill_slashes(dest);
3610 if (set_get(remove_symlinks_to, dest)) {
3611
3612 if (!arg_quiet)
3613 log_info("rm '%s'", p);
3614
3615 if (unlink(p) < 0) {
3616 log_error("Cannot unlink symlink %s: %m", p);
3617
3618 if (r == 0)
3619 r = -errno;
3620 } else {
3621 rmdir_parents(p, config_path);
3622 path_kill_slashes(p);
3623
3624 if (!set_get(remove_symlinks_to, p)) {
3625
3626 if ((r = mark_symlink_for_removal(p)) < 0) {
3627 if (r == 0)
3628 r = q;
3629 } else
3630 *deleted = true;
3631 }
3632 }
3633 }
3634
3635 free(p);
3636 free(dest);
3637 }
3638 }
3639
3640 closedir(d);
3641
3642 return r;
3643}
3644
3645static int remove_marked_symlinks(const char *config_path) {
3646 int fd, r = 0;
3647 bool deleted;
3648
3649 assert(config_path);
3650
3651 if (set_size(remove_symlinks_to) <= 0)
3652 return 0;
3653
3654 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3655 return -errno;
3656
3657 do {
3658 int q, cfd;
3659 deleted = false;
3660
3661 if ((cfd = dup(fd)) < 0) {
3662 r = -errno;
3663 break;
3664 }
3665
3666 /* This takes possession of cfd and closes it */
3667 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3668 if (r == 0)
3669 r = q;
3670 }
3671 } while (deleted);
3672
3673 close_nointr_nofail(fd);
3674
3675 return r;
3676}
3677
3678static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3679 int r;
3680
3681 assert(old_path);
3682 assert(new_path);
3683 assert(verb);
3684
3685 if (streq(verb, "enable")) {
3686 char *dest;
3687
3688 mkdir_parents(new_path, 0755);
3689
3690 if (symlink(old_path, new_path) >= 0) {
3691
3692 if (!arg_quiet)
3693 log_info("ln -s '%s' '%s'", old_path, new_path);
3694
3695 return 0;
3696 }
3697
3698 if (errno != EEXIST) {
3699 log_error("Cannot link %s to %s: %m", old_path, new_path);
3700 return -errno;
3701 }
3702
3703 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3704
3705 if (errno == EINVAL) {
3706 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3707 return -EEXIST;
3708 }
3709
3710 log_error("readlink() failed: %s", strerror(-r));
3711 return r;
3712 }
3713
3714 if (streq(dest, old_path)) {
3715 free(dest);
3716 return 0;
3717 }
3718
3719 if (!arg_force) {
3720 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3721 free(dest);
3722 return -EEXIST;
3723 }
3724
3725 free(dest);
3726 unlink(new_path);
3727
3728 if (!arg_quiet)
3729 log_info("ln -s '%s' '%s'", old_path, new_path);
3730
3731 if (symlink(old_path, new_path) >= 0)
3732 return 0;
3733
3734 log_error("Cannot link %s to %s: %m", old_path, new_path);
3735 return -errno;
3736
3737 } else if (streq(verb, "disable")) {
3738 char *dest;
3739
3740 if ((r = mark_symlink_for_removal(old_path)) < 0)
3741 return r;
3742
3743 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3744 if (errno == ENOENT)
3745 return 0;
3746
3747 if (errno == EINVAL) {
3748 log_warning("File %s not a symlink, ignoring.", old_path);
3749 return 0;
3750 }
3751
3752 log_error("readlink() failed: %s", strerror(-r));
3753 return r;
3754 }
3755
3756 if (!streq(dest, old_path)) {
3757 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3758 free(dest);
3759 return 0;
3760 }
3761
3762 free(dest);
3763
3764 if ((r = mark_symlink_for_removal(new_path)) < 0)
3765 return r;
3766
3767 if (!arg_quiet)
3768 log_info("rm '%s'", new_path);
3769
3770 if (unlink(new_path) >= 0)
3771 return 0;
3772
3773 log_error("Cannot unlink %s: %m", new_path);
3774 return -errno;
3775
3776 } else if (streq(verb, "is-enabled")) {
3777 char *dest;
3778
3779 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3780
3781 if (errno == ENOENT || errno == EINVAL)
3782 return 0;
3783
3784 log_error("readlink() failed: %s", strerror(-r));
3785 return r;
3786 }
3787
3788 if (streq(dest, old_path)) {
3789 free(dest);
3790 return 1;
3791 }
3792
3793 return 0;
3794 }
3795
3796 assert_not_reached("Unknown action.");
3797}
3798
3799static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3800 char **s;
3801 char *alias_path = NULL;
3802 int r;
3803
3804 assert(verb);
3805 assert(i);
3806 assert(config_path);
3807
3808 STRV_FOREACH(s, i->aliases) {
3809
ee5762e3
LP		 3810 free(alias_path);
3811 if (!(alias_path = path_make_absolute(*s, config_path))) {
3812 log_error("Out of memory");
3813 r = -ENOMEM;
3814 goto finish;
3815 }
3816
3817 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3818 goto finish;
3819
3820 if (streq(verb, "disable"))
3821 rmdir_parents(alias_path, config_path);
3822 }
ee5762e3
LP		 3823 r = 0;
3824
3825finish:
3826 free(alias_path);
3827
3828 return r;
3829}
3830
3831static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3832 char **s;
3833 char *alias_path = NULL;
3834 int r;
3835
3836 assert(verb);
3837 assert(i);
3838 assert(config_path);
3839
3840 STRV_FOREACH(s, i->wanted_by) {
b9c0d441 3841 if (!unit_name_is_valid_no_type(*s, true)) {
ee5762e3
LP		 3842 log_error("Invalid name %s.", *s);
3843 r = -EINVAL;
3844 goto finish;
3845 }
3846
3847 free(alias_path);
3848 alias_path = NULL;
3849
3850 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3851 log_error("Out of memory");
3852 r = -ENOMEM;
3853 goto finish;
3854 }
3855
3856 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3857 goto finish;
3858
3859 if (streq(verb, "disable"))
3860 rmdir_parents(alias_path, config_path);
3861 }
3862
3863 r = 0;
3864
3865finish:
3866 free(alias_path);
3867
3868 return r;
3869}
3870
3871static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3872
3873 const ConfigItem items[] = {
3874 { "Alias", config_parse_strv, &i->aliases, "Install" },
3875 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3876 { "Also", config_parse_also, NULL, "Install" },
3877
3878 { NULL, NULL, NULL, NULL }
3879 };
3880
3881 char **p;
3882 char *filename = NULL;
3883 FILE *f = NULL;
3884 int r;
3885
3886 assert(paths);
3887 assert(i);
3888
3889 STRV_FOREACH(p, paths->unit_path) {
3890 int fd;
3891
3892 if (!(filename = path_make_absolute(i->name, *p))) {
3893 log_error("Out of memory");
3894 return -ENOMEM;
3895 }
3896
3897 /* Ensure that we don't follow symlinks */
3898 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3899 if ((f = fdopen(fd, "re")))
3900 break;
3901
3902 if (errno == ELOOP) {
3903 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3904 free(filename);
3905 return -errno;
3906 }
3907
3908 if (errno != ENOENT) {
3909 log_error("Failed to open %s: %m", filename);
3910 free(filename);
3911 return -errno;
3912 }
3913
3914 free(filename);
3915 filename = NULL;
3916 }
3917
3918 if (!f) {
c8b2e52c
LP		 3919#if defined(TARGET_FEDORA) && defined (HAVE_SYSV_COMPAT)
3920
3921 if (endswith(i->name, ".service")) {
3922 char *sysv;
3923 bool exists;
3924
3925 if (asprintf(&sysv, SYSTEM_SYSVINIT_PATH "/%s", i->name) < 0) {
3926 log_error("Out of memory");
3927 return -ENOMEM;
3928 }
3929
3930 sysv[strlen(sysv) - sizeof(".service") + 1] = 0;
3931 exists = access(sysv, F_OK) >= 0;
3932
3933 if (exists) {
3934 pid_t pid;
3935 siginfo_t status;
3936
3937 const char *argv[] = {
3938 "/sbin/chkconfig",
3939 NULL,
3940 NULL,
3941 NULL
3942 };
3943
3944 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", i->name);
3945
3946 argv[1] = file_name_from_path(sysv);
3947 argv[2] =
3948 streq(verb, "enable") ? "on" :
3949 streq(verb, "disable") ? "off" : NULL;
3950
3951 log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2]));
3952
3953 if ((pid = fork()) < 0) {
3954 log_error("Failed to fork: %m");
3955 free(sysv);
3956 return -errno;
3957 } else if (pid == 0) {
3958 execv(argv[0], (char**) argv);
3959 _exit(EXIT_FAILURE);
3960 }
3961
3962 free(sysv);
3963
3964 if ((r = wait_for_terminate(pid, &status)) < 0)
3965 return r;
3966
3967 if (status.si_code == CLD_EXITED) {
3968 if (status.si_status == 0 && (streq(verb, "enable") || streq(verb, "disable")))
3969 n_symlinks ++;
3970
3971 return status.si_status == 0 ? 0 : -EINVAL;
3972 } else
3973 return -EPROTO;
3974 }
3975
3976 free(sysv);
3977 }
3978
3979#endif
3980
ee5762e3
LP		 3981 log_error("Couldn't find %s.", i->name);
3982 return -ENOENT;
3983 }
3984
3985 i->path = filename;
3986
3987 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3988 fclose(f);
3989 return r;
3990 }
3991
560d8f23
LP		 3992 n_symlinks += strv_length(i->aliases);
3993 n_symlinks += strv_length(i->wanted_by);
3994
ee5762e3
LP		 3995 fclose(f);
3996
3997 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3998 return r;
3999
4000 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
4001 return r;
4002
4003 if ((r = mark_symlink_for_removal(filename)) < 0)
4004 return r;
4005
4006 if ((r = remove_marked_symlinks(config_path)) < 0)
4007 return r;
4008
4009 return 0;
4010}
4011
4012static char *get_config_path(void) {
4013
af2d49f7
LP		 4014 if (arg_user && arg_global)
4015 return strdup(USER_CONFIG_UNIT_PATH);
ee5762e3 4016
af2d49f7 4017 if (arg_user) {
ee5762e3
LP		 4018 char *p;
4019
af2d49f7 4020 if (user_config_home(&p) < 0)
ee5762e3
LP		 4021 return NULL;
4022
4023 return p;
4024 }
4025
4026 return strdup(SYSTEM_CONFIG_UNIT_PATH);
4027}
4028
4029static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
4030 DBusError error;
4031 int r;
4032 LookupPaths paths;
4033 char *config_path = NULL;
4034 unsigned j;
4035 InstallInfo *i;
4036 const char *verb = args[0];
4037
4038 dbus_error_init(&error);
4039
4040 zero(paths);
af2d49f7 4041 if ((r = lookup_paths_init(&paths, arg_user ? MANAGER_USER : MANAGER_SYSTEM)) < 0) {
ee5762e3
LP		 4042 log_error("Failed to determine lookup paths: %s", strerror(-r));
4043 goto finish;
4044 }
4045
4046 if (!(config_path = get_config_path())) {
4047 log_error("Failed to determine config path");
4048 r = -ENOMEM;
4049 goto finish;
4050 }
4051
4052 will_install = hashmap_new(string_hash_func, string_compare_func);
4053 have_installed = hashmap_new(string_hash_func, string_compare_func);
4054
4055 if (!will_install || !have_installed) {
4056 log_error("Failed to allocate unit sets.");
4057 r = -ENOMEM;
4058 goto finish;
4059 }
4060
4061 if (!arg_defaults && streq(verb, "disable"))
4062 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
4063 log_error("Failed to allocate symlink sets.");
4064 r = -ENOMEM;
4065 goto finish;
4066 }
4067
4068 for (j = 1; j < n; j++)
71fad675
LP		 4069 if ((r = install_info_add(args[j])) < 0) {
4070 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
ee5762e3 4071 goto finish;
71fad675 4072 }
ee5762e3
LP		 4073
4074 while ((i = hashmap_first(will_install))) {
4075 int q;
4076
4077 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
4078
4079 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
4080
4081 if (q < 0) {
4082 if (r == 0)
4083 r = q;
4084 goto finish;
4085 }
4086
4087 /* In test mode and found something */
4088 r = 1;
4089 break;
4090 }
4091 }
4092
4093 if (streq(verb, "is-enabled"))
4094 r = r > 0 ? 0 : -ENOENT;
560d8f23
LP		 4095 else {
4096 if (n_symlinks <= 0)
4097 log_warning("Unit files contain no applicable installation information. Ignoring.");
4098
4099 if (bus &&
4100 /* Don't try to reload anything if the user asked us to not do this */
4101 !arg_no_reload &&
4102 /* Don't try to reload anything when updating a unit globally */
4103 !arg_global &&
4104 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
af2d49f7 4105 (arg_user || sd_booted() > 0) &&
560d8f23 4106 /* Don't try to reload anything if we are running in a chroot environment */
af2d49f7 4107 (arg_user || running_in_chroot() <= 0) ) {
560d8f23 4108 int q;
ee5762e3 4109
560d8f23
LP		 4110 if ((q = daemon_reload(bus, args, n)) < 0)
4111 r = q;
4112 }
ee5762e3
LP		 4113 }
4114
4115finish:
4116 install_info_hashmap_free(will_install);
4117 install_info_hashmap_free(have_installed);
4118
4119 set_free_free(remove_symlinks_to);
4120
4121 lookup_paths_free(&paths);
4122
4123 free(config_path);
4124
4125 return r;
4126}
4127
e4b61340 4128static int systemctl_help(void) {
7e4249b9 4129
2e33c433 4130 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 4131 "Send control commands to or query the systemd manager.\n\n"
8a0867d6
LP		 4132 " -h --help Show this help\n"
4133 " --version Show package version\n"
4134 " -t --type=TYPE List only units of a particular type\n"
4135 " -p --property=NAME Show only properties by this name\n"
4136 " -a --all Show all units/properties, including dead/empty ones\n"
4137 " --full Don't ellipsize unit names on output\n"
4138 " --fail When queueing a new job, fail if conflicting jobs are\n"
4139 " pending\n"
4140 " -q --quiet Suppress output\n"
4141 " --no-block Do not wait until operation finished\n"
0736af98 4142 " --no-pager Do not pipe output into a pager.\n"
af2d49f7
LP		 4143 " --system Connect to system manager\n"
4144 " --user Connect to user service manager\n"
8a0867d6
LP		 4145 " --order When generating graph for dot, show only order\n"
4146 " --require When generating graph for dot, show only requirement\n"
4147 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4148 " --global Enable/disable unit files globally\n"
4149 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4150 " configuration\n"
501fc174
LP		 4151 " --no-ask-password\n"
4152 " Do not ask for system passwords\n"
8a0867d6
LP		 4153 " --kill-mode=MODE How to send signal\n"
4154 " --kill-who=WHO Who to send signal to\n"
4155 " -s --signal=SIGNAL Which signal to send\n"
4156 " -f --force When enabling unit files, override existing symlinks\n"
4157 " When shutting down, execute action immediately\n"
4158 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 4159 "Commands:\n"
4160 " list-units List units\n"
ee5762e3
LP		 4161 " start [NAME...] Start (activate) one or more units\n"
4162 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 4163 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 4164 " restart [NAME...] Start or restart one or more units\n"
4165 " try-restart [NAME...] Restart one or more units if active\n"
4166 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4167 " otherwise start or restart\n"
4168 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4169 " otherwise restart if active\n"
7e4249b9 4170 " isolate [NAME] Start one unit and stop all others\n"
8a0867d6 4171 " kill [NAME...] Send signal to processes of a unit\n"
ee5762e3 4172 " is-active [NAME...] Check whether units are active\n"
75676b72 4173 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 4174 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3 4175 " units/jobs or the manager\n"
fdf20a31
MM		 4176 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4177 " units\n"
ee5762e3
LP		 4178 " enable [NAME...] Enable one or more unit files\n"
4179 " disable [NAME...] Disable one or more unit files\n"
4180 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 4181 " load [NAME...] Load one or more units\n"
4182 " list-jobs List jobs\n"
ee5762e3 4183 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 4184 " monitor Monitor unit/job changes\n"
4185 " dump Dump server status\n"
4445a875 4186 " dot Dump dependency graph for dot(1)\n"
7e4249b9 4187 " snapshot [NAME] Create a snapshot\n"
6759e7a7 4188 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 4189 " daemon-reload Reload systemd manager configuration\n"
4190 " daemon-reexec Reexecute systemd manager\n"
7e4249b9
LP		 4191 " show-environment Dump environment\n"
4192 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5 4193 " unset-environment [NAME...] Unset one or more environment variables\n"
20b09ca7
LP		 4194 " default Enter system default mode\n"
4195 " rescue Enter system rescue mode\n"
4196 " emergency Enter system emergency mode\n"
514f4ef5 4197 " halt Shut down and halt the system\n"
2e33c433 4198 " poweroff Shut down and power-off the system\n"
514f4ef5 4199 " reboot Shut down and reboot the system\n"
20b09ca7 4200 " kexec Shut down and reboot the system with kexec\n"
af2d49f7 4201 " exit Ask for user instance termination\n",
5b6319dc 4202 program_invocation_short_name);
7e4249b9
LP		 4203
4204 return 0;
4205}
4206
e4b61340
LP		 4207static int halt_help(void) {
4208
2e33c433 4209 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4210 "%s the system.\n\n"
4211 " --help Show this help\n"
4212 " --halt Halt the machine\n"
4213 " -p --poweroff Switch off the machine\n"
4214 " --reboot Reboot the machine\n"
2e33c433
LP		 4215 " -f --force Force immediate halt/power-off/reboot\n"
4216 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 4217 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 4218 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4219 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 4220 program_invocation_short_name,
4221 arg_action == ACTION_REBOOT ? "Reboot" :
4222 arg_action == ACTION_POWEROFF ? "Power off" :
4223 "Halt");
4224
4225 return 0;
4226}
4227
4228static int shutdown_help(void) {
4229
08e4b1c5 4230 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
e4b61340
LP		 4231 "Shut down the system.\n\n"
4232 " --help Show this help\n"
4233 " -H --halt Halt the machine\n"
4234 " -P --poweroff Power-off the machine\n"
4235 " -r --reboot Reboot the machine\n"
4236 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433 4237 " -k Don't halt/power-off/reboot, just send warnings\n"
f6144808 4238 " --no-wall Don't send wall message before halt/power-off/reboot\n"
f6144808 4239 " -c Cancel a pending shutdown\n",
e4b61340
LP		 4240 program_invocation_short_name);
4241
4242 return 0;
4243}
4244
4245static int telinit_help(void) {
4246
2e33c433 4247 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 4248 "Send control commands to the init daemon.\n\n"
4249 " --help Show this help\n"
2e33c433 4250 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 4251 "Commands:\n"
4252 " 0 Power-off the machine\n"
4253 " 6 Reboot the machine\n"
514f4ef5
LP		 4254 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4255 " 1, s, S Enter rescue mode\n"
4256 " q, Q Reload init daemon configuration\n"
4257 " u, U Reexecute init daemon\n",
e4b61340
LP		 4258 program_invocation_short_name);
4259
4260 return 0;
4261}
4262
4263static int runlevel_help(void) {
4264
2e33c433 4265 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4266 "Prints the previous and current runlevel of the init system.\n\n"
4267 " --help Show this help\n",
4268 program_invocation_short_name);
4269
4270 return 0;
4271}
4272
4273static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 4274
4275 enum {
90d473a1 4276 ARG_FAIL = 0x100,
35df8f27 4277 ARG_VERSION,
af2d49f7 4278 ARG_USER,
7e4249b9 4279 ARG_SYSTEM,
ee5762e3 4280 ARG_GLOBAL,
6e905d93 4281 ARG_NO_BLOCK,
611efaac 4282 ARG_NO_PAGER,
4445a875
LP		 4283 ARG_NO_WALL,
4284 ARG_ORDER,
8fe914ec 4285 ARG_REQUIRE,
ee5762e3 4286 ARG_FULL,
ee5762e3 4287 ARG_NO_RELOAD,
8a0867d6
LP		 4288 ARG_DEFAULTS,
4289 ARG_KILL_MODE,
501fc174
LP		 4290 ARG_KILL_WHO,
4291 ARG_NO_ASK_PASSWORD
7e4249b9
LP		 4292 };
4293
4294 static const struct option options[] = {
ee5762e3 4295 { "help", no_argument, NULL, 'h' },
35df8f27 4296 { "version", no_argument, NULL, ARG_VERSION },
ee5762e3
LP		 4297 { "type", required_argument, NULL, 't' },
4298 { "property", required_argument, NULL, 'p' },
4299 { "all", no_argument, NULL, 'a' },
4300 { "full", no_argument, NULL, ARG_FULL },
4301 { "fail", no_argument, NULL, ARG_FAIL },
af2d49f7 4302 { "user", no_argument, NULL, ARG_USER },
ee5762e3
LP		 4303 { "system", no_argument, NULL, ARG_SYSTEM },
4304 { "global", no_argument, NULL, ARG_GLOBAL },
4305 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
0736af98 4306 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
ee5762e3
LP		 4307 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4308 { "quiet", no_argument, NULL, 'q' },
4309 { "order", no_argument, NULL, ARG_ORDER },
4310 { "require", no_argument, NULL, ARG_REQUIRE },
b4f27ccc 4311 { "force", no_argument, NULL, 'f' },
ee5762e3 4312 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
f1e36d67 4313 { "defaults", no_argument, NULL, ARG_DEFAULTS },
8a0867d6
LP		 4314 { "kill-mode", required_argument, NULL, ARG_KILL_MODE },
4315 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4316 { "signal", required_argument, NULL, 's' },
501fc174 4317 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
ee5762e3 4318 { NULL, 0, NULL, 0 }
7e4249b9
LP		 4319 };
4320
4321 int c;
4322
e4b61340 4323 assert(argc >= 0);
7e4249b9
LP		 4324 assert(argv);
4325
501fc174
LP		 4326 /* Only when running as systemctl we ask for passwords */
4327 arg_ask_password = true;
4328
8a0867d6 4329 while ((c = getopt_long(argc, argv, "ht:p:aqfs:", options, NULL)) >= 0) {
7e4249b9
LP		 4330
4331 switch (c) {
4332
4333 case 'h':
e4b61340 4334 systemctl_help();
7e4249b9 4335 return 0;
35df8f27
LP		 4336
4337 case ARG_VERSION:
4338 puts(PACKAGE_STRING);
7d568925
LP		 4339 puts(DISTRIBUTION);
4340 puts(SYSTEMD_FEATURES);
35df8f27 4341 return 0;
7e4249b9
LP		 4342
4343 case 't':
4344 arg_type = optarg;
4345 break;
4346
ea4a240d
LP		 4347 case 'p': {
4348 char **l;
4349
4350 if (!(l = strv_append(arg_property, optarg)))
4351 return -ENOMEM;
4352
4353 strv_free(arg_property);
4354 arg_property = l;
48220598
LP		 4355
4356 /* If the user asked for a particular
4357 * property, show it to him, even if it is
4358 * empty. */
4359 arg_all = true;
4360 break;
ea4a240d 4361 }
48220598 4362
7e4249b9
LP		 4363 case 'a':
4364 arg_all = true;
4365 break;
4366
90d473a1
LP		 4367 case ARG_FAIL:
4368 arg_fail = true;
7e4249b9
LP		 4369 break;
4370
af2d49f7
LP		 4371 case ARG_USER:
4372 arg_user = true;
7e4249b9
LP		 4373 break;
4374
4375 case ARG_SYSTEM:
af2d49f7 4376 arg_user = false;
7e4249b9
LP		 4377 break;
4378
6e905d93
LP		 4379 case ARG_NO_BLOCK:
4380 arg_no_block = true;
7e4249b9
LP		 4381 break;
4382
611efaac
LP		 4383 case ARG_NO_PAGER:
4384 arg_no_pager = true;
4385 break;
0736af98 4386
514f4ef5
LP		 4387 case ARG_NO_WALL:
4388 arg_no_wall = true;
4389 break;
4390
4445a875
LP		 4391 case ARG_ORDER:
4392 arg_dot = DOT_ORDER;
4393 break;
4394
4395 case ARG_REQUIRE:
4396 arg_dot = DOT_REQUIRE;
4397 break;
4398
8fe914ec
LP		 4399 case ARG_FULL:
4400 arg_full = true;
4401 break;
4402
0183528f
LP		 4403 case 'q':
4404 arg_quiet = true;
4405 break;
4406
b4f27ccc 4407 case 'f':
ee5762e3
LP		 4408 arg_force = true;
4409 break;
4410
4411 case ARG_NO_RELOAD:
4412 arg_no_reload = true;
4413 break;
4414
4415 case ARG_GLOBAL:
4416 arg_global = true;
af2d49f7 4417 arg_user = true;
ee5762e3
LP		 4418 break;
4419
4420 case ARG_DEFAULTS:
4421 arg_defaults = true;
4422 break;
4423
8a0867d6
LP		 4424 case ARG_KILL_WHO:
4425 arg_kill_who = optarg;
4426 break;
4427
4428 case ARG_KILL_MODE:
4429 arg_kill_mode = optarg;
4430 break;
4431
4432 case 's':
4433 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4434 log_error("Failed to parse signal string %s.", optarg);
4435 return -EINVAL;
4436 }
4437 break;
4438
501fc174
LP		 4439 case ARG_NO_ASK_PASSWORD:
4440 arg_ask_password = false;
4441 break;
4442
7e4249b9
LP		 4443 case '?':
4444 return -EINVAL;
4445
4446 default:
4447 log_error("Unknown option code %c", c);
4448 return -EINVAL;
4449 }
4450 }
4451
4452 return 1;
4453}
4454
e4b61340
LP		 4455static int halt_parse_argv(int argc, char *argv[]) {
4456
4457 enum {
4458 ARG_HELP = 0x100,
4459 ARG_HALT,
514f4ef5
LP		 4460 ARG_REBOOT,
4461 ARG_NO_WALL
e4b61340
LP		 4462 };
4463
4464 static const struct option options[] = {
4465 { "help", no_argument, NULL, ARG_HELP },
4466 { "halt", no_argument, NULL, ARG_HALT },
4467 { "poweroff", no_argument, NULL, 'p' },
4468 { "reboot", no_argument, NULL, ARG_REBOOT },
4469 { "force", no_argument, NULL, 'f' },
4470 { "wtmp-only", no_argument, NULL, 'w' },
4471 { "no-wtmp", no_argument, NULL, 'd' },
4472 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 4473 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4474 { NULL, 0, NULL, 0 }
4475 };
4476
4477 int c, runlevel;
4478
4479 assert(argc >= 0);
4480 assert(argv);
4481
4482 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4483 if (runlevel == '0' || runlevel == '6')
4484 arg_immediate = true;
4485
4486 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4487 switch (c) {
4488
4489 case ARG_HELP:
4490 halt_help();
4491 return 0;
4492
4493 case ARG_HALT:
4494 arg_action = ACTION_HALT;
4495 break;
4496
4497 case 'p':
a042efad
MS		 4498 if (arg_action != ACTION_REBOOT)
4499 arg_action = ACTION_POWEROFF;
e4b61340
LP		 4500 break;
4501
4502 case ARG_REBOOT:
4503 arg_action = ACTION_REBOOT;
4504 break;
4505
4506 case 'f':
4507 arg_immediate = true;
4508 break;
4509
4510 case 'w':
4511 arg_dry = true;
4512 break;
4513
4514 case 'd':
4515 arg_no_wtmp = true;
4516 break;
4517
4518 case 'n':
4519 arg_no_sync = true;
4520 break;
4521
514f4ef5
LP		 4522 case ARG_NO_WALL:
4523 arg_no_wall = true;
4524 break;
4525
e4b61340
LP		 4526 case 'i':
4527 case 'h':
4528 /* Compatibility nops */
4529 break;
4530
4531 case '?':
4532 return -EINVAL;
4533
4534 default:
4535 log_error("Unknown option code %c", c);
4536 return -EINVAL;
4537 }
4538 }
4539
4540 if (optind < argc) {
4541 log_error("Too many arguments.");
4542 return -EINVAL;
4543 }
4544
4545 return 1;
4546}
4547
f6144808
LP		 4548static int parse_time_spec(const char *t, usec_t *_u) {
4549 assert(t);
4550 assert(_u);
4551
4552 if (streq(t, "now"))
4553 *_u = 0;
4554 else if (t[0] == '+') {
4555 uint64_t u;
4556
4557 if (safe_atou64(t + 1, &u) < 0)
4558 return -EINVAL;
4559
4560 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4561 } else {
4562 char *e = NULL;
4563 long hour, minute;
4564 struct tm tm;
4565 time_t s;
4566 usec_t n;
4567
4568 errno = 0;
4569 hour = strtol(t, &e, 10);
4570 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4571 return -EINVAL;
4572
4573 minute = strtol(e+1, &e, 10);
4574 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4575 return -EINVAL;
4576
4577 n = now(CLOCK_REALTIME);
08e4b1c5
LP		 4578 s = (time_t) (n / USEC_PER_SEC);
4579
4580 zero(tm);
f6144808
LP		 4581 assert_se(localtime_r(&s, &tm));
4582
4583 tm.tm_hour = (int) hour;
4584 tm.tm_min = (int) minute;
08e4b1c5 4585 tm.tm_sec = 0;
f6144808
LP		 4586
4587 assert_se(s = mktime(&tm));
4588
4589 *_u = (usec_t) s * USEC_PER_SEC;
4590
4591 while (*_u <= n)
4592 *_u += USEC_PER_DAY;
4593 }
4594
4595 return 0;
4596}
4597
e4b61340
LP		 4598static int shutdown_parse_argv(int argc, char *argv[]) {
4599
4600 enum {
4601 ARG_HELP = 0x100,
514f4ef5 4602 ARG_NO_WALL
e4b61340
LP		 4603 };
4604
4605 static const struct option options[] = {
4606 { "help", no_argument, NULL, ARG_HELP },
4607 { "halt", no_argument, NULL, 'H' },
4608 { "poweroff", no_argument, NULL, 'P' },
4609 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4610 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4611 { NULL, 0, NULL, 0 }
4612 };
4613
f6144808 4614 int c, r;
e4b61340
LP		 4615
4616 assert(argc >= 0);
4617 assert(argv);
4618
f6144808 4619 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
e4b61340
LP		 4620 switch (c) {
4621
4622 case ARG_HELP:
4623 shutdown_help();
4624 return 0;
4625
4626 case 'H':
4627 arg_action = ACTION_HALT;
4628 break;
4629
4630 case 'P':
4631 arg_action = ACTION_POWEROFF;
4632 break;
4633
4634 case 'r':
4635 arg_action = ACTION_REBOOT;
4636 break;
4637
4638 case 'h':
4639 if (arg_action != ACTION_HALT)
4640 arg_action = ACTION_POWEROFF;
4641 break;
4642
4643 case 'k':
4644 arg_dry = true;
4645 break;
4646
514f4ef5
LP		 4647 case ARG_NO_WALL:
4648 arg_no_wall = true;
4649 break;
4650
e4b61340
LP		 4651 case 't':
4652 case 'a':
4653 /* Compatibility nops */
4654 break;
4655
f6144808
LP		 4656 case 'c':
4657 arg_action = ACTION_CANCEL_SHUTDOWN;
4658 break;
4659
e4b61340
LP		 4660 case '?':
4661 return -EINVAL;
4662
4663 default:
4664 log_error("Unknown option code %c", c);
4665 return -EINVAL;
4666 }
4667 }
4668
6b5ad000 4669 if (argc > optind) {
f6144808
LP		 4670 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4671 log_error("Failed to parse time specification: %s", argv[optind]);
4672 return r;
4673 }
6b5ad000 4674 } else
08e4b1c5 4675 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
442b9094 4676
f6144808 4677 /* We skip the time argument */
e4b61340
LP		 4678 if (argc > optind + 1)
4679 arg_wall = argv + optind + 1;
4680
4681 optind = argc;
4682
4683 return 1;
e4b61340
LP		 4684}
4685
4686static int telinit_parse_argv(int argc, char *argv[]) {
4687
4688 enum {
4689 ARG_HELP = 0x100,
514f4ef5 4690 ARG_NO_WALL
e4b61340
LP		 4691 };
4692
4693 static const struct option options[] = {
4694 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4695 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4696 { NULL, 0, NULL, 0 }
4697 };
4698
4699 static const struct {
4700 char from;
4701 enum action to;
4702 } table[] = {
4703 { '0', ACTION_POWEROFF },
4704 { '6', ACTION_REBOOT },
ef2f1067 4705 { '1', ACTION_RESCUE },
e4b61340
LP		 4706 { '2', ACTION_RUNLEVEL2 },
4707 { '3', ACTION_RUNLEVEL3 },
4708 { '4', ACTION_RUNLEVEL4 },
4709 { '5', ACTION_RUNLEVEL5 },
4710 { 's', ACTION_RESCUE },
4711 { 'S', ACTION_RESCUE },
4712 { 'q', ACTION_RELOAD },
4713 { 'Q', ACTION_RELOAD },
4714 { 'u', ACTION_REEXEC },
4715 { 'U', ACTION_REEXEC }
4716 };
4717
4718 unsigned i;
4719 int c;
4720
4721 assert(argc >= 0);
4722 assert(argv);
4723
4724 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4725 switch (c) {
4726
4727 case ARG_HELP:
4728 telinit_help();
4729 return 0;
4730
514f4ef5
LP		 4731 case ARG_NO_WALL:
4732 arg_no_wall = true;
4733 break;
4734
e4b61340
LP		 4735 case '?':
4736 return -EINVAL;
4737
4738 default:
4739 log_error("Unknown option code %c", c);
4740 return -EINVAL;
4741 }
4742 }
4743
4744 if (optind >= argc) {
2f02ce40 4745 telinit_help();
e4b61340
LP		 4746 return -EINVAL;
4747 }
4748
4749 if (optind + 1 < argc) {
4750 log_error("Too many arguments.");
4751 return -EINVAL;
4752 }
4753
4754 if (strlen(argv[optind]) != 1) {
4755 log_error("Expected single character argument.");
4756 return -EINVAL;
4757 }
4758
4759 for (i = 0; i < ELEMENTSOF(table); i++)
4760 if (table[i].from == argv[optind][0])
4761 break;
4762
4763 if (i >= ELEMENTSOF(table)) {
4764 log_error("Unknown command %s.", argv[optind]);
4765 return -EINVAL;
4766 }
4767
4768 arg_action = table[i].to;
4769
4770 optind ++;
4771
4772 return 1;
4773}
4774
4775static int runlevel_parse_argv(int argc, char *argv[]) {
4776
4777 enum {
4778 ARG_HELP = 0x100,
4779 };
4780
4781 static const struct option options[] = {
4782 { "help", no_argument, NULL, ARG_HELP },
4783 { NULL, 0, NULL, 0 }
4784 };
4785
4786 int c;
4787
4788 assert(argc >= 0);
4789 assert(argv);
4790
4791 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4792 switch (c) {
4793
4794 case ARG_HELP:
4795 runlevel_help();
4796 return 0;
4797
4798 case '?':
4799 return -EINVAL;
4800
4801 default:
4802 log_error("Unknown option code %c", c);
4803 return -EINVAL;
4804 }
4805 }
4806
4807 if (optind < argc) {
4808 log_error("Too many arguments.");
4809 return -EINVAL;
4810 }
4811
4812 return 1;
4813}
4814
4815static int parse_argv(int argc, char *argv[]) {
4816 assert(argc >= 0);
4817 assert(argv);
4818
4819 if (program_invocation_short_name) {
4820
4821 if (strstr(program_invocation_short_name, "halt")) {
4822 arg_action = ACTION_HALT;
4823 return halt_parse_argv(argc, argv);
4824 } else if (strstr(program_invocation_short_name, "poweroff")) {
4825 arg_action = ACTION_POWEROFF;
4826 return halt_parse_argv(argc, argv);
4827 } else if (strstr(program_invocation_short_name, "reboot")) {
4828 arg_action = ACTION_REBOOT;
4829 return halt_parse_argv(argc, argv);
4830 } else if (strstr(program_invocation_short_name, "shutdown")) {
4831 arg_action = ACTION_POWEROFF;
4832 return shutdown_parse_argv(argc, argv);
4833 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4834
4835 if (sd_booted() > 0) {
4836 arg_action = ACTION_INVALID;
4837 return telinit_parse_argv(argc, argv);
4838 } else {
4839 /* Hmm, so some other init system is
4840 * running, we need to forward this
4841 * request to it. For now we simply
4842 * guess that it is Upstart. */
4843
4844 execv("/lib/upstart/telinit", argv);
4845
4846 log_error("Couldn't find an alternative telinit implementation to spawn.");
4847 return -EIO;
4848 }
4849
e4b61340
LP		 4850 } else if (strstr(program_invocation_short_name, "runlevel")) {
4851 arg_action = ACTION_RUNLEVEL;
4852 return runlevel_parse_argv(argc, argv);
4853 }
4854 }
4855
4856 arg_action = ACTION_SYSTEMCTL;
4857 return systemctl_parse_argv(argc, argv);
4858}
4859
d55ae9e6 4860static int action_to_runlevel(void) {
eb22ac37
LP		 4861
4862 static const char table[_ACTION_MAX] = {
4863 [ACTION_HALT] = '0',
4864 [ACTION_POWEROFF] = '0',
4865 [ACTION_REBOOT] = '6',
4866 [ACTION_RUNLEVEL2] = '2',
4867 [ACTION_RUNLEVEL3] = '3',
4868 [ACTION_RUNLEVEL4] = '4',
4869 [ACTION_RUNLEVEL5] = '5',
4870 [ACTION_RESCUE] = '1'
4871 };
4872
d55ae9e6
LP		 4873 assert(arg_action < _ACTION_MAX);
4874
4875 return table[arg_action];
4876}
4877
f1c5860b 4878static int talk_upstart(void) {
d55ae9e6
LP		 4879 DBusMessage *m = NULL, *reply = NULL;
4880 DBusError error;
4881 int previous, rl, r;
4882 char
4883 env1_buf[] = "RUNLEVEL=X",
4884 env2_buf[] = "PREVLEVEL=X";
4885 char *env1 = env1_buf, *env2 = env2_buf;
4886 const char *emit = "runlevel";
4887 dbus_bool_t b_false = FALSE;
4888 DBusMessageIter iter, sub;
f1c5860b 4889 DBusConnection *bus;
d55ae9e6
LP		 4890
4891 dbus_error_init(&error);
4892
4893 if (!(rl = action_to_runlevel()))
4894 return 0;
4895
4896 if (utmp_get_runlevel(&previous, NULL) < 0)
4897 previous = 'N';
4898
b574246b 4899 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4900 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4901 r = 0;
4902 goto finish;
4903 }
4904
4cf5d675 4905 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
f1c5860b
LP		 4906 r = -EIO;
4907 goto finish;
4908 }
4909
4910 if ((r = bus_check_peercred(bus)) < 0) {
4911 log_error("Failed to verify owner of bus.");
4912 goto finish;
4913 }
4914
d55ae9e6
LP		 4915 if (!(m = dbus_message_new_method_call(
4916 "com.ubuntu.Upstart",
4917 "/com/ubuntu/Upstart",
4918 "com.ubuntu.Upstart0_6",
4919 "EmitEvent"))) {
4920
4921 log_error("Could not allocate message.");
f1c5860b
LP		 4922 r = -ENOMEM;
4923 goto finish;
d55ae9e6
LP		 4924 }
4925
4926 dbus_message_iter_init_append(m, &iter);
4927
4928 env1_buf[sizeof(env1_buf)-2] = rl;
4929 env2_buf[sizeof(env2_buf)-2] = previous;
4930
4931 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4932 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4933 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4934 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4935 !dbus_message_iter_close_container(&iter, &sub) ||
4936 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4937 log_error("Could not append arguments to message.");
4938 r = -ENOMEM;
4939 goto finish;
4940 }
4941
4942 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4943
4944 if (error_is_no_service(&error)) {
aabd9b11 4945 r = -EADDRNOTAVAIL;
d55ae9e6
LP		 4946 goto finish;
4947 }
4948
4cf5d675 4949 log_error("Failed to issue method call: %s", bus_error_message(&error));
d55ae9e6
LP		 4950 r = -EIO;
4951 goto finish;
4952 }
4953
aabd9b11 4954 r = 0;
d55ae9e6
LP		 4955
4956finish:
4957 if (m)
4958 dbus_message_unref(m);
4959
4960 if (reply)
4961 dbus_message_unref(reply);
4962
b574246b 4963 if (bus) {
5d452f9c 4964 dbus_connection_flush(bus);
b574246b 4965 dbus_connection_close(bus);
f1c5860b 4966 dbus_connection_unref(bus);
b574246b 4967 }
f1c5860b 4968
d55ae9e6
LP		 4969 dbus_error_free(&error);
4970
4971 return r;
4972}
4973
4974static int talk_initctl(void) {
eb22ac37
LP		 4975 struct init_request request;
4976 int r, fd;
d55ae9e6 4977 char rl;
eb22ac37 4978
d55ae9e6 4979 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4980 return 0;
4981
4982 zero(request);
4983 request.magic = INIT_MAGIC;
4984 request.sleeptime = 0;
4985 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4986 request.runlevel = rl;
4987
4988 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4989
4990 if (errno == ENOENT)
4991 return 0;
eb22ac37 4992
d55ae9e6 4993 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4994 return -errno;
d55ae9e6 4995 }
eb22ac37 4996
d55ae9e6 4997 errno = 0;
eb22ac37
LP		 4998 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4999 close_nointr_nofail(fd);
5000
d55ae9e6
LP		 5001 if (r < 0) {
5002 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 5003 return errno ? -errno : -EIO;
d55ae9e6 5004 }
eb22ac37
LP		 5005
5006 return 1;
e4b61340
LP		 5007}
5008
ee5762e3 5009static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 5010
7e4249b9
LP		 5011 static const struct {
5012 const char* verb;
5013 const enum {
5014 MORE,
5015 LESS,
5016 EQUAL
5017 } argc_cmp;
5018 const int argc;
5019 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
5020 } verbs[] = {
ee5762e3
LP		 5021 { "list-units", LESS, 1, list_units },
5022 { "list-jobs", EQUAL, 1, list_jobs },
5023 { "clear-jobs", EQUAL, 1, daemon_reload },
5024 { "load", MORE, 2, load_unit },
5025 { "cancel", MORE, 2, cancel_job },
5026 { "start", MORE, 2, start_unit },
5027 { "stop", MORE, 2, start_unit },
5028 { "reload", MORE, 2, start_unit },
5029 { "restart", MORE, 2, start_unit },
5030 { "try-restart", MORE, 2, start_unit },
5031 { "reload-or-restart", MORE, 2, start_unit },
5032 { "reload-or-try-restart", MORE, 2, start_unit },
5033 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5034 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5035 { "isolate", EQUAL, 2, start_unit },
8a0867d6 5036 { "kill", MORE, 2, kill_unit },
ee5762e3
LP		 5037 { "is-active", MORE, 2, check_unit },
5038 { "check", MORE, 2, check_unit },
5039 { "show", MORE, 1, show },
5040 { "status", MORE, 2, show },
5041 { "monitor", EQUAL, 1, monitor },
5042 { "dump", EQUAL, 1, dump },
5043 { "dot", EQUAL, 1, dot },
5044 { "snapshot", LESS, 2, snapshot },
5045 { "delete", MORE, 2, delete_snapshot },
5046 { "daemon-reload", EQUAL, 1, daemon_reload },
5047 { "daemon-reexec", EQUAL, 1, daemon_reload },
ee5762e3
LP		 5048 { "show-environment", EQUAL, 1, show_enviroment },
5049 { "set-environment", MORE, 2, set_environment },
5050 { "unset-environment", MORE, 2, set_environment },
5051 { "halt", EQUAL, 1, start_special },
5052 { "poweroff", EQUAL, 1, start_special },
5053 { "reboot", EQUAL, 1, start_special },
20b09ca7 5054 { "kexec", EQUAL, 1, start_special },
ee5762e3
LP		 5055 { "default", EQUAL, 1, start_special },
5056 { "rescue", EQUAL, 1, start_special },
5057 { "emergency", EQUAL, 1, start_special },
20b09ca7 5058 { "exit", EQUAL, 1, start_special },
fdf20a31 5059 { "reset-failed", MORE, 1, reset_failed },
ee5762e3
LP		 5060 { "enable", MORE, 2, enable_unit },
5061 { "disable", MORE, 2, enable_unit },
5062 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 5063 };
5064
e4b61340 5065 int left;
7e4249b9 5066 unsigned i;
7e4249b9 5067
e4b61340
LP		 5068 assert(argc >= 0);
5069 assert(argv);
ee5762e3 5070 assert(error);
7e4249b9
LP		 5071
5072 left = argc - optind;
5073
5074 if (left <= 0)
5075 /* Special rule: no arguments means "list-units" */
5076 i = 0;
5077 else {
0183528f
LP		 5078 if (streq(argv[optind], "help")) {
5079 systemctl_help();
5080 return 0;
5081 }
5082
7e4249b9
LP		 5083 for (i = 0; i < ELEMENTSOF(verbs); i++)
5084 if (streq(argv[optind], verbs[i].verb))
5085 break;
5086
5087 if (i >= ELEMENTSOF(verbs)) {
5088 log_error("Unknown operation %s", argv[optind]);
e4b61340 5089 return -EINVAL;
7e4249b9
LP		 5090 }
5091 }
5092
5093 switch (verbs[i].argc_cmp) {
5094
5095 case EQUAL:
5096 if (left != verbs[i].argc) {
5097 log_error("Invalid number of arguments.");
e4b61340 5098 return -EINVAL;
7e4249b9
LP		 5099 }
5100
5101 break;
5102
5103 case MORE:
5104 if (left < verbs[i].argc) {
5105 log_error("Too few arguments.");
e4b61340 5106 return -EINVAL;
7e4249b9
LP		 5107 }
5108
5109 break;
5110
5111 case LESS:
5112 if (left > verbs[i].argc) {
5113 log_error("Too many arguments.");
e4b61340 5114 return -EINVAL;
7e4249b9
LP		 5115 }
5116
5117 break;
5118
5119 default:
5120 assert_not_reached("Unknown comparison operator.");
5121 }
5122
ee5762e3
LP		 5123 /* Require a bus connection for all operations but
5124 * enable/disable */
5125 if (!streq(verbs[i].verb, "enable") &&
5126 !streq(verbs[i].verb, "disable") &&
5127 !bus) {
5128 log_error("Failed to get D-Bus connection: %s", error->message);
5129 return -EIO;
5130 }
5131
e4b61340
LP		 5132 return verbs[i].dispatch(bus, argv + optind, left);
5133}
5134
9be9828c 5135static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
f6144808
LP		 5136 int fd = -1;
5137 struct msghdr msghdr;
5138 struct iovec iovec;
5139 union sockaddr_union sockaddr;
f6144808
LP		 5140 struct shutdownd_command c;
5141
5142 zero(c);
5143 c.elapse = t;
5144 c.mode = mode;
9be9828c
LP		 5145 c.warn_wall = warn;
5146
5147 if (message)
5148 strncpy(c.wall_message, message, sizeof(c.wall_message));
f6144808
LP		 5149
5150 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5151 return -errno;
5152
5153 zero(sockaddr);
5154 sockaddr.sa.sa_family = AF_UNIX;
5155 sockaddr.un.sun_path[0] = 0;
5156 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
5157
5158 zero(iovec);
5159 iovec.iov_base = (char*) &c;
5160 iovec.iov_len = sizeof(c);
5161
f6144808
LP		 5162 zero(msghdr);
5163 msghdr.msg_name = &sockaddr;
0e098b15 5164 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
f6144808
LP		 5165
5166 msghdr.msg_iov = &iovec;
5167 msghdr.msg_iovlen = 1;
f6144808
LP		 5168
5169 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5170 close_nointr_nofail(fd);
5171 return -errno;
5172 }
5173
5174 close_nointr_nofail(fd);
5175 return 0;
5176}
5177
e4b61340 5178static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5179
5180 if (bus) {
5181 /* First, try systemd via D-Bus. */
e364ad06 5182 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 5183 return 0;
5184 }
5185
5186 /* Nothing else worked, so let's try signals */
5187 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5188
5189 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5190 log_error("kill() failed: %m");
5191 return -errno;
5192 }
5193
5194 return 0;
5195}
5196
5197static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5198
5199 if (bus) {
5200 /* First, try systemd via D-Bus. */
706900b7 5201 if (start_unit(bus, NULL, 0) >= 0)
983d9c90 5202 goto done;
e4b61340
LP		 5203 }
5204
ec7f7f20
LP		 5205 /* Hmm, talking to systemd via D-Bus didn't work. Then
5206 * let's try to talk to Upstart via D-Bus. */
e364ad06 5207 if (talk_upstart() > 0)
ec7f7f20
LP		 5208 goto done;
5209
e4b61340
LP		 5210 /* Nothing else worked, so let's try
5211 * /dev/initctl */
fbc43921 5212 if (talk_initctl() > 0)
983d9c90 5213 goto done;
d55ae9e6
LP		 5214
5215 log_error("Failed to talk to init daemon.");
5216 return -EIO;
983d9c90
LP		 5217
5218done:
5219 warn_wall(arg_action);
5220 return 0;
e4b61340
LP		 5221}
5222
5223static int halt_main(DBusConnection *bus) {
5224 int r;
5225
bc8c2f5c 5226 if (geteuid() != 0) {
cc8a7a61 5227 log_error("Must be root.");
bc8c2f5c
LP		 5228 return -EPERM;
5229 }
5230
f6144808 5231 if (arg_when > 0) {
9be9828c 5232 char *m;
08e4b1c5 5233 char date[FORMAT_TIMESTAMP_MAX];
9be9828c
LP		 5234
5235 m = strv_join(arg_wall, " ");
5236 r = send_shutdownd(arg_when,
5237 arg_action == ACTION_HALT ? 'H' :
5238 arg_action == ACTION_POWEROFF ? 'P' :
5239 'r',
5240 !arg_no_wall,
5241 m);
5242 free(m);
5243
5244 if (r < 0)
f6144808 5245 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
08e4b1c5
LP		 5246 else {
5247 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5248 format_timestamp(date, sizeof(date), arg_when));
f6144808 5249 return 0;
08e4b1c5 5250 }
f6144808
LP		 5251 }
5252
d47b555b 5253 if (!arg_dry && !arg_immediate)
e4b61340
LP		 5254 return start_with_fallback(bus);
5255
d90e1a30
LP		 5256 if (!arg_no_wtmp) {
5257 if (sd_booted() > 0)
5258 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5259 else if ((r = utmp_put_shutdown(0)) < 0)
e4b61340 5260 log_warning("Failed to write utmp record: %s", strerror(-r));
d90e1a30 5261 }
e4b61340
LP		 5262
5263 if (!arg_no_sync)
5264 sync();
5265
5266 if (arg_dry)
5267 return 0;
5268
5269 /* Make sure C-A-D is handled by the kernel from this
5270 * point on... */
5271 reboot(RB_ENABLE_CAD);
5272
5273 switch (arg_action) {
5274
5275 case ACTION_HALT:
3059b1c1 5276 log_info("Halting.");
e4b61340
LP		 5277 reboot(RB_HALT_SYSTEM);
5278 break;
5279
5280 case ACTION_POWEROFF:
3059b1c1 5281 log_info("Powering off.");
e4b61340
LP		 5282 reboot(RB_POWER_OFF);
5283 break;
5284
5285 case ACTION_REBOOT:
3059b1c1 5286 log_info("Rebooting.");
e4b61340
LP		 5287 reboot(RB_AUTOBOOT);
5288 break;
5289
5290 default:
5291 assert_not_reached("Unknown halt action.");
5292 }
5293
5294 /* We should never reach this. */
5295 return -ENOSYS;
5296}
5297
5298static int runlevel_main(void) {
5299 int r, runlevel, previous;
5300
5301 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 5302 printf("unknown\n");
e4b61340
LP		 5303 return r;
5304 }
5305
5306 printf("%c %c\n",
5307 previous <= 0 ? 'N' : previous,
5308 runlevel <= 0 ? 'N' : runlevel);
5309
5310 return 0;
5311}
5312
0736af98 5313static void pager_open(void) {
611efaac
LP		 5314 int fd[2];
5315 const char *pager;
5316
1888c907
LP		 5317 if (pager_pid > 0)
5318 return;
5319
611efaac
LP		 5320 if (!on_tty() || arg_no_pager)
5321 return;
5322
5323 if ((pager = getenv("PAGER")))
5324 if (!*pager || streq(pager, "cat"))
5325 return;
5326
4bc5f808
LP		 5327 /* Determine and cache number of columns before we spawn the
5328 * pager so that we get the value from the actual tty */
5329 columns();
5330
611efaac
LP		 5331 if (pipe(fd) < 0) {
5332 log_error("Failed to create pager pipe: %m");
5333 return;
5334 }
5335
1888c907
LP		 5336 pager_pid = fork();
5337 if (pager_pid < 0) {
611efaac
LP		 5338 log_error("Failed to fork pager: %m");
5339 close_pipe(fd);
5340 return;
5341 }
5342
1888c907
LP		 5343 /* In the child start the pager */
5344 if (pager_pid == 0) {
611efaac
LP		 5345
5346 dup2(fd[0], STDIN_FILENO);
5347 close_pipe(fd);
5348
4c00bf25 5349 setenv("LESS", "FRSX", 0);
611efaac 5350
1888c907
LP		 5351 prctl(PR_SET_PDEATHSIG, SIGTERM);
5352
611efaac
LP		 5353 if (pager) {
5354 execlp(pager, pager, NULL);
5355 execl("/bin/sh", "sh", "-c", pager, NULL);
5356 } else {
75d12d57
LP		 5357 /* Debian's alternatives command for pagers is
5358 * called 'pager'. Note that we do not call
5359 * sensible-pagers here, since that is just a
5360 * shell script that implements a logic that
5361 * is similar to this one anyway, but is
5362 * Debian-specific. */
5363 execlp("pager", "pager", NULL);
5364
611efaac
LP		 5365 execlp("less", "less", NULL);
5366 execlp("more", "more", NULL);
5367 }
5368
5369 log_error("Unable to execute pager: %m");
5370 _exit(EXIT_FAILURE);
5371 }
5372
1888c907 5373 /* Return in the parent */
611efaac
LP		 5374 if (dup2(fd[1], STDOUT_FILENO) < 0)
5375 log_error("Failed to duplicate pager pipe: %m");
5376
5377 close_pipe(fd);
0736af98
MV		 5378}
5379
1888c907
LP		 5380static void pager_close(void) {
5381 siginfo_t dummy;
5382
5383 if (pager_pid <= 0)
5384 return;
5385
5386 /* Inform pager that we are done */
5387 fclose(stdout);
5388 wait_for_terminate(pager_pid, &dummy);
5389 pager_pid = 0;
5390}
5391
e4b61340 5392int main(int argc, char*argv[]) {
22f4096c 5393 int r, retval = EXIT_FAILURE;
e4b61340
LP		 5394 DBusConnection *bus = NULL;
5395 DBusError error;
5396
5397 dbus_error_init(&error);
5398
5399 log_parse_environment();
2396fb04 5400 log_open();
e4b61340
LP		 5401
5402 if ((r = parse_argv(argc, argv)) < 0)
5403 goto finish;
5404 else if (r == 0) {
22f4096c 5405 retval = EXIT_SUCCESS;
7e4249b9
LP		 5406 goto finish;
5407 }
5408
e4b61340
LP		 5409 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5410 * let's shortcut this */
5411 if (arg_action == ACTION_RUNLEVEL) {
22f4096c
LP		 5412 r = runlevel_main();
5413 retval = r < 0 ? EXIT_FAILURE : r;
e4b61340
LP		 5414 goto finish;
5415 }
5416
af2d49f7 5417 bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 5418
5419 switch (arg_action) {
5420
22f4096c
LP		 5421 case ACTION_SYSTEMCTL:
5422 r = systemctl_main(bus, argc, argv, &error);
e4b61340 5423 break;
e4b61340
LP		 5424
5425 case ACTION_HALT:
5426 case ACTION_POWEROFF:
5427 case ACTION_REBOOT:
22f4096c 5428 r = halt_main(bus);
e4b61340
LP		 5429 break;
5430
e4b61340
LP		 5431 case ACTION_RUNLEVEL2:
5432 case ACTION_RUNLEVEL3:
5433 case ACTION_RUNLEVEL4:
5434 case ACTION_RUNLEVEL5:
5435 case ACTION_RESCUE:
514f4ef5 5436 case ACTION_EMERGENCY:
eb22ac37 5437 case ACTION_DEFAULT:
22f4096c 5438 r = start_with_fallback(bus);
e4b61340 5439 break;
7e4249b9 5440
e4b61340
LP		 5441 case ACTION_RELOAD:
5442 case ACTION_REEXEC:
22f4096c 5443 r = reload_with_fallback(bus);
e4b61340
LP		 5444 break;
5445
f6144808 5446 case ACTION_CANCEL_SHUTDOWN:
22f4096c 5447 r = send_shutdownd(0, 0, false, NULL);
f6144808
LP		 5448 break;
5449
eb22ac37
LP		 5450 case ACTION_INVALID:
5451 case ACTION_RUNLEVEL:
e4b61340
LP		 5452 default:
5453 assert_not_reached("Unknown action");
5454 }
7e4249b9 5455
22f4096c
LP		 5456 retval = r < 0 ? EXIT_FAILURE : r;
5457
7e4249b9
LP		 5458finish:
5459
b574246b 5460 if (bus) {
5d452f9c 5461 dbus_connection_flush(bus);
b574246b 5462 dbus_connection_close(bus);
7e4249b9 5463 dbus_connection_unref(bus);
b574246b 5464 }
7e4249b9 5465
e4b61340
LP		 5466 dbus_error_free(&error);
5467
7e4249b9
LP		 5468 dbus_shutdown();
5469
ea4a240d
LP		 5470 strv_free(arg_property);
5471
1888c907
LP		 5472 pager_close();
5473
7e4249b9
LP		 5474 return retval;
5475}
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