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[thirdparty/systemd.git] / src / systemctl.c
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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
LP		 1617typedef struct ExecStatusInfo {
1618 char *path;
1619 char **argv;
1620
b708e7ce
LP		 1621 bool ignore;
1622
582a507f
LP		 1623 usec_t start_timestamp;
1624 usec_t exit_timestamp;
1625 pid_t pid;
1626 int code;
1627 int status;
1628
1629 LIST_FIELDS(struct ExecStatusInfo, exec);
1630} ExecStatusInfo;
1631
1632static void exec_status_info_free(ExecStatusInfo *i) {
1633 assert(i);
1634
1635 free(i->path);
1636 strv_free(i->argv);
1637 free(i);
1638}
1639
1640static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1641 uint64_t start_timestamp, exit_timestamp;
1642 DBusMessageIter sub2, sub3;
1643 const char*path;
1644 unsigned n;
1645 uint32_t pid;
1646 int32_t code, status;
b708e7ce 1647 dbus_bool_t ignore;
582a507f
LP		 1648
1649 assert(i);
1650 assert(i);
1651
1652 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1653 return -EIO;
1654
1655 dbus_message_iter_recurse(sub, &sub2);
1656
1657 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1658 return -EIO;
1659
1660 if (!(i->path = strdup(path)))
1661 return -ENOMEM;
1662
1663 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1664 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1665 return -EIO;
1666
1667 n = 0;
1668 dbus_message_iter_recurse(&sub2, &sub3);
1669 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1670 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1671 dbus_message_iter_next(&sub3);
1672 n++;
1673 }
1674
1675
1676 if (!(i->argv = new0(char*, n+1)))
1677 return -ENOMEM;
1678
1679 n = 0;
1680 dbus_message_iter_recurse(&sub2, &sub3);
1681 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1682 const char *s;
1683
1684 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1685 dbus_message_iter_get_basic(&sub3, &s);
1686 dbus_message_iter_next(&sub3);
1687
1688 if (!(i->argv[n++] = strdup(s)))
1689 return -ENOMEM;
1690 }
1691
1692 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1693 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1694 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1695 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1696 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1697 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1698 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1699 return -EIO;
1700
b708e7ce 1701 i->ignore = ignore;
582a507f
LP		 1702 i->start_timestamp = (usec_t) start_timestamp;
1703 i->exit_timestamp = (usec_t) exit_timestamp;
1704 i->pid = (pid_t) pid;
1705 i->code = code;
1706 i->status = status;
1707
1708 return 0;
1709}
1710
61cbdc4b
LP		 1711typedef struct UnitStatusInfo {
1712 const char *id;
1713 const char *load_state;
1714 const char *active_state;
1715 const char *sub_state;
1716
1717 const char *description;
4a9e2fff 1718 const char *following;
61cbdc4b 1719
c31b4423 1720 const char *path;
61cbdc4b
LP		 1721 const char *default_control_group;
1722
584be568
LP		 1723 usec_t inactive_exit_timestamp;
1724 usec_t active_enter_timestamp;
1725 usec_t active_exit_timestamp;
1726 usec_t inactive_enter_timestamp;
1727
45fb0699
LP		 1728 bool need_daemon_reload;
1729
61cbdc4b
LP		 1730 /* Service */
1731 pid_t main_pid;
1732 pid_t control_pid;
1733 const char *status_text;
d06dacd0 1734 bool running:1;
07459bb6 1735#ifdef HAVE_SYSV_COMPAT
d06dacd0 1736 bool is_sysv:1;
07459bb6 1737#endif
61cbdc4b
LP		 1738
1739 usec_t start_timestamp;
1740 usec_t exit_timestamp;
1741
1742 int exit_code, exit_status;
1743
1744 /* Socket */
1745 unsigned n_accepted;
1746 unsigned n_connections;
b8131a87 1747 bool accept;
61cbdc4b
LP		 1748
1749 /* Device */
1750 const char *sysfs_path;
1751
1752 /* Mount, Automount */
1753 const char *where;
1754
1755 /* Swap */
1756 const char *what;
582a507f
LP		 1757
1758 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1759} UnitStatusInfo;
1760
1761static void print_status_info(UnitStatusInfo *i) {
582a507f 1762 ExecStatusInfo *p;
2ee68f72 1763 const char *on, *off, *ss;
584be568
LP		 1764 usec_t timestamp;
1765 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1766 char since2[FORMAT_TIMESTAMP_MAX], *s2;
582a507f 1767
61cbdc4b
LP		 1768 assert(i);
1769
1770 /* This shows pretty information about a unit. See
1771 * print_property() for a low-level property printer */
1772
1773 printf("%s", strna(i->id));
1774
1775 if (i->description && !streq_ptr(i->id, i->description))
1776 printf(" - %s", i->description);
1777
1778 printf("\n");
1779
4a9e2fff
LP		 1780 if (i->following)
1781 printf("\t Follow: unit currently follows state of %s\n", i->following);
1782
00dc5d76
LP		 1783 if (streq_ptr(i->load_state, "failed") ||
1784 streq_ptr(i->load_state, "banned")) {
c31b4423
LP		 1785 on = ansi_highlight(true);
1786 off = ansi_highlight(false);
1787 } else
1788 on = off = "";
1789
1790 if (i->path)
1791 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1792 else
c31b4423 1793 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1794
2ee68f72
LP		 1795 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1796
fdf20a31 1797 if (streq_ptr(i->active_state, "failed")) {
2ee68f72
LP		 1798 on = ansi_highlight(true);
1799 off = ansi_highlight(false);
1800 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1801 on = ansi_highlight_green(true);
1802 off = ansi_highlight_green(false);
1803 } else
1804 on = off = "";
1805
1806 if (ss)
584be568 1807 printf("\t Active: %s%s (%s)%s",
2ee68f72
LP		 1808 on,
1809 strna(i->active_state),
1810 ss,
1811 off);
1812 else
584be568 1813 printf("\t Active: %s%s%s",
2ee68f72
LP		 1814 on,
1815 strna(i->active_state),
1816 off);
61cbdc4b 1817
584be568
LP		 1818 timestamp = (streq_ptr(i->active_state, "active") ||
1819 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1820 (streq_ptr(i->active_state, "inactive") ||
fdf20a31 1821 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
584be568
LP		 1822 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1823 i->active_exit_timestamp;
1824
1825 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1826 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1827
1828 if (s1)
538da63d 1829 printf(" since %s; %s\n", s2, s1);
584be568 1830 else if (s2)
538da63d 1831 printf(" since %s\n", s2);
584be568
LP		 1832 else
1833 printf("\n");
1834
61cbdc4b
LP		 1835 if (i->sysfs_path)
1836 printf("\t Device: %s\n", i->sysfs_path);
9feeba4b 1837 if (i->where)
61cbdc4b 1838 printf("\t Where: %s\n", i->where);
9feeba4b 1839 if (i->what)
61cbdc4b
LP		 1840 printf("\t What: %s\n", i->what);
1841
b8131a87 1842 if (i->accept)
61cbdc4b
LP		 1843 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1844
582a507f
LP		 1845 LIST_FOREACH(exec, p, i->exec) {
1846 char *t;
1847
1848 /* Only show exited processes here */
1849 if (p->code == 0)
1850 continue;
1851
1852 t = strv_join(p->argv, " ");
f3d41013 1853 printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
582a507f
LP		 1854 free(t);
1855
d06dacd0
LP		 1856 if (p->code == CLD_EXITED) {
1857 const char *c;
1858
582a507f 1859 printf("status=%i", p->status);
d06dacd0 1860
07459bb6 1861#ifdef HAVE_SYSV_COMPAT
d06dacd0 1862 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1863#else
1864 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1865#endif
d06dacd0
LP		 1866 printf("/%s", c);
1867
1868 } else
582a507f
LP		 1869 printf("signal=%s", signal_to_string(p->status));
1870 printf(")\n");
1871
1872 if (i->main_pid == p->pid &&
1873 i->start_timestamp == p->start_timestamp &&
1874 i->exit_timestamp == p->start_timestamp)
1875 /* Let's not show this twice */
1876 i->main_pid = 0;
1877
1878 if (p->pid == i->control_pid)
1879 i->control_pid = 0;
1880 }
1881
61cbdc4b
LP		 1882 if (i->main_pid > 0 || i->control_pid > 0) {
1883 printf("\t");
1884
1885 if (i->main_pid > 0) {
f3d41013 1886 printf("Main PID: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1887
1888 if (i->running) {
1889 char *t = NULL;
1890 get_process_name(i->main_pid, &t);
1891 if (t) {
1892 printf(" (%s)", t);
1893 free(t);
1894 }
6d4fc029 1895 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1896 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1897
d06dacd0
LP		 1898 if (i->exit_code == CLD_EXITED) {
1899 const char *c;
1900
61cbdc4b 1901 printf("status=%i", i->exit_status);
d06dacd0 1902
07459bb6 1903#ifdef HAVE_SYSV_COMPAT
d06dacd0 1904 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1905#else
1906 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
1907#endif
d06dacd0
LP		 1908 printf("/%s", c);
1909
1910 } else
582a507f 1911 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1912 printf(")");
1913 }
61cbdc4b
LP		 1914 }
1915
1916 if (i->main_pid > 0 && i->control_pid > 0)
1917 printf(";");
1918
1919 if (i->control_pid > 0) {
1920 char *t = NULL;
1921
1922 printf(" Control: %u", (unsigned) i->control_pid);
1923
1924 get_process_name(i->control_pid, &t);
1925 if (t) {
1926 printf(" (%s)", t);
1927 free(t);
1928 }
1929 }
1930
1931 printf("\n");
1932 }
1933
17bb7382
LP		 1934 if (i->status_text)
1935 printf("\t Status: \"%s\"\n", i->status_text);
1936
c59760ee 1937 if (i->default_control_group) {
ab35fb1b
LP		 1938 unsigned c;
1939
61cbdc4b 1940 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1941
1942 if ((c = columns()) > 18)
1943 c -= 18;
1944 else
1945 c = 0;
1946
35d2e7ec 1947 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1948 }
45fb0699
LP		 1949
1950 if (i->need_daemon_reload)
2cc59dbf
LP		 1951 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1952 ansi_highlight(true),
1953 ansi_highlight(false),
af2d49f7 1954 arg_user ? "--user" : "--system");
61cbdc4b
LP		 1955}
1956
1957static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1958
1959 switch (dbus_message_iter_get_arg_type(iter)) {
1960
1961 case DBUS_TYPE_STRING: {
1962 const char *s;
1963
1964 dbus_message_iter_get_basic(iter, &s);
1965
1966 if (s[0]) {
1967 if (streq(name, "Id"))
1968 i->id = s;
1969 else if (streq(name, "LoadState"))
1970 i->load_state = s;
1971 else if (streq(name, "ActiveState"))
1972 i->active_state = s;
1973 else if (streq(name, "SubState"))
1974 i->sub_state = s;
1975 else if (streq(name, "Description"))
1976 i->description = s;
1977 else if (streq(name, "FragmentPath"))
c31b4423 1978 i->path = s;
07459bb6 1979#ifdef HAVE_SYSV_COMPAT
d06dacd0
LP		 1980 else if (streq(name, "SysVPath")) {
1981 i->is_sysv = true;
c31b4423 1982 i->path = s;
07459bb6
FF		 1983 }
1984#endif
1985 else if (streq(name, "DefaultControlGroup"))
61cbdc4b
LP		 1986 i->default_control_group = s;
1987 else if (streq(name, "StatusText"))
1988 i->status_text = s;
1989 else if (streq(name, "SysFSPath"))
1990 i->sysfs_path = s;
1991 else if (streq(name, "Where"))
1992 i->where = s;
1993 else if (streq(name, "What"))
1994 i->what = s;
4a9e2fff
LP		 1995 else if (streq(name, "Following"))
1996 i->following = s;
61cbdc4b
LP		 1997 }
1998
1999 break;
2000 }
2001
b8131a87
LP		 2002 case DBUS_TYPE_BOOLEAN: {
2003 dbus_bool_t b;
2004
2005 dbus_message_iter_get_basic(iter, &b);
2006
2007 if (streq(name, "Accept"))
2008 i->accept = b;
45fb0699
LP		 2009 else if (streq(name, "NeedDaemonReload"))
2010 i->need_daemon_reload = b;
b8131a87
LP		 2011
2012 break;
2013 }
2014
61cbdc4b
LP		 2015 case DBUS_TYPE_UINT32: {
2016 uint32_t u;
2017
2018 dbus_message_iter_get_basic(iter, &u);
2019
2020 if (streq(name, "MainPID")) {
2021 if (u > 0) {
2022 i->main_pid = (pid_t) u;
2023 i->running = true;
2024 }
2025 } else if (streq(name, "ControlPID"))
2026 i->control_pid = (pid_t) u;
2027 else if (streq(name, "ExecMainPID")) {
2028 if (u > 0)
2029 i->main_pid = (pid_t) u;
2030 } else if (streq(name, "NAccepted"))
2031 i->n_accepted = u;
2032 else if (streq(name, "NConnections"))
2033 i->n_connections = u;
2034
2035 break;
2036 }
2037
2038 case DBUS_TYPE_INT32: {
2039 int32_t j;
2040
2041 dbus_message_iter_get_basic(iter, &j);
2042
2043 if (streq(name, "ExecMainCode"))
2044 i->exit_code = (int) j;
2045 else if (streq(name, "ExecMainStatus"))
2046 i->exit_status = (int) j;
2047
2048 break;
2049 }
2050
2051 case DBUS_TYPE_UINT64: {
2052 uint64_t u;
2053
2054 dbus_message_iter_get_basic(iter, &u);
2055
2056 if (streq(name, "ExecMainStartTimestamp"))
2057 i->start_timestamp = (usec_t) u;
2058 else if (streq(name, "ExecMainExitTimestamp"))
2059 i->exit_timestamp = (usec_t) u;
584be568
LP		 2060 else if (streq(name, "ActiveEnterTimestamp"))
2061 i->active_enter_timestamp = (usec_t) u;
2062 else if (streq(name, "InactiveEnterTimestamp"))
2063 i->inactive_enter_timestamp = (usec_t) u;
2064 else if (streq(name, "InactiveExitTimestamp"))
2065 i->inactive_exit_timestamp = (usec_t) u;
2066 else if (streq(name, "ActiveExitTimestamp"))
2067 i->active_exit_timestamp = (usec_t) u;
61cbdc4b
LP		 2068
2069 break;
2070 }
582a507f
LP		 2071
2072 case DBUS_TYPE_ARRAY: {
2073
2074 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2075 startswith(name, "Exec")) {
2076 DBusMessageIter sub;
2077
2078 dbus_message_iter_recurse(iter, &sub);
2079 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2080 ExecStatusInfo *info;
2081 int r;
2082
2083 if (!(info = new0(ExecStatusInfo, 1)))
2084 return -ENOMEM;
2085
2086 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2087 free(info);
2088 return r;
2089 }
2090
2091 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2092
2093 dbus_message_iter_next(&sub);
2094 }
2095 }
2096
2097 break;
2098 }
61cbdc4b
LP		 2099 }
2100
2101 return 0;
2102}
2103
48220598
LP		 2104static int print_property(const char *name, DBusMessageIter *iter) {
2105 assert(name);
2106 assert(iter);
2107
61cbdc4b
LP		 2108 /* This is a low-level property printer, see
2109 * print_status_info() for the nicer output */
2110
ea4a240d 2111 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 2112 return 0;
2113
2114 switch (dbus_message_iter_get_arg_type(iter)) {
2115
2116 case DBUS_TYPE_STRING: {
2117 const char *s;
2118 dbus_message_iter_get_basic(iter, &s);
2119
2120 if (arg_all || s[0])
2121 printf("%s=%s\n", name, s);
2122
2123 return 0;
2124 }
2125
2126 case DBUS_TYPE_BOOLEAN: {
2127 dbus_bool_t b;
2128 dbus_message_iter_get_basic(iter, &b);
2129 printf("%s=%s\n", name, yes_no(b));
2130
2131 return 0;
2132 }
2133
2134 case DBUS_TYPE_UINT64: {
2135 uint64_t u;
2136 dbus_message_iter_get_basic(iter, &u);
2137
2138 /* Yes, heuristics! But we can change this check
2139 * should it turn out to not be sufficient */
2140
14ad1d14 2141 if (strstr(name, "Timestamp")) {
48220598
LP		 2142 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
2143
2144 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
2145 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 2146 } else if (strstr(name, "USec")) {
2147 char timespan[FORMAT_TIMESPAN_MAX];
2148
2149 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 2150 } else
2151 printf("%s=%llu\n", name, (unsigned long long) u);
2152
2153 return 0;
2154 }
2155
2156 case DBUS_TYPE_UINT32: {
2157 uint32_t u;
2158 dbus_message_iter_get_basic(iter, &u);
2159
5bd07073 2160 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 2161 printf("%s=%04o\n", name, u);
2162 else
2163 printf("%s=%u\n", name, (unsigned) u);
2164
2165 return 0;
2166 }
2167
2168 case DBUS_TYPE_INT32: {
2169 int32_t i;
2170 dbus_message_iter_get_basic(iter, &i);
2171
2172 printf("%s=%i\n", name, (int) i);
2173 return 0;
2174 }
2175
05d6a3b6
LP		 2176 case DBUS_TYPE_DOUBLE: {
2177 double d;
2178 dbus_message_iter_get_basic(iter, &d);
2179
2180 printf("%s=%g\n", name, d);
2181 return 0;
2182 }
2183
48220598
LP		 2184 case DBUS_TYPE_STRUCT: {
2185 DBusMessageIter sub;
2186 dbus_message_iter_recurse(iter, &sub);
2187
ebf57b80 2188 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 2189 uint32_t u;
2190
2191 dbus_message_iter_get_basic(&sub, &u);
2192
2193 if (u)
2194 printf("%s=%u\n", name, (unsigned) u);
2195 else if (arg_all)
2196 printf("%s=\n", name);
2197
2198 return 0;
ebf57b80 2199 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 2200 const char *s;
2201
2202 dbus_message_iter_get_basic(&sub, &s);
2203
2204 if (arg_all || s[0])
2205 printf("%s=%s\n", name, s);
2206
2207 return 0;
2208 }
2209
2210 break;
2211 }
2212
2213 case DBUS_TYPE_ARRAY:
2214
2215 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2216 DBusMessageIter sub;
2217 bool space = false;
2218
2219 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 2220 if (arg_all ||
2221 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2222 printf("%s=", name);
2223
2224 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2225 const char *s;
2226
2227 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2228 dbus_message_iter_get_basic(&sub, &s);
2229 printf("%s%s", space ? " " : "", s);
2230
2231 space = true;
2232 dbus_message_iter_next(&sub);
2233 }
2234
2235 puts("");
2236 }
2237
ebf57b80 2238 return 0;
582a507f 2239
82c121a4
LP		 2240 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2241 DBusMessageIter sub;
2242
2243 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 2244 if (arg_all ||
2245 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2246 printf("%s=", name);
2247
2248 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2249 uint8_t u;
ebf57b80 2250
82c121a4
LP		 2251 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2252 dbus_message_iter_get_basic(&sub, &u);
2253 printf("%02x", u);
2254
2255 dbus_message_iter_next(&sub);
2256 }
2257
2258 puts("");
2259 }
2260
2261 return 0;
582a507f 2262
ebf57b80
LP		 2263 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2264 DBusMessageIter sub, sub2;
2265
2266 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 2267 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2268 const char *type, *path;
2269
2270 dbus_message_iter_recurse(&sub, &sub2);
2271
2272 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2273 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2274 printf("%s=%s\n", type, path);
2275
2276 dbus_message_iter_next(&sub);
2277 }
2278
707e5e52 2279 return 0;
582a507f 2280
707e5e52
LP		 2281 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2282 DBusMessageIter sub, sub2;
2283
2284 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 2285 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2286 const char *base;
2287 uint64_t value, next_elapse;
2288
2289 dbus_message_iter_recurse(&sub, &sub2);
2290
2291 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2292 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 2293 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2294 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2295
2296 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 2297 base,
552e4331
LP		 2298 format_timespan(timespan1, sizeof(timespan1), value),
2299 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2300 }
fe68089d
LP		 2301
2302 dbus_message_iter_next(&sub);
2303 }
2304
2305 return 0;
fe68089d 2306
582a507f
LP		 2307 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2308 DBusMessageIter sub;
fe68089d
LP		 2309
2310 dbus_message_iter_recurse(iter, &sub);
fe68089d 2311 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 2312 ExecStatusInfo info;
fe68089d 2313
582a507f
LP		 2314 zero(info);
2315 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 2316 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 2317 char *t;
2318
2319 t = strv_join(info.argv, " ");
2320
b708e7ce 2321 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		 2322 name,
2323 strna(info.path),
2324 strna(t),
b708e7ce 2325 yes_no(info.ignore),
582a507f
LP		 2326 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2327 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2328 (unsigned) info. pid,
2329 sigchld_code_to_string(info.code),
2330 info.status,
2331 info.code == CLD_EXITED ? "" : "/",
2332 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 2333
582a507f 2334 free(t);
fe68089d
LP		 2335 }
2336
582a507f
LP		 2337 free(info.path);
2338 strv_free(info.argv);
707e5e52
LP		 2339
2340 dbus_message_iter_next(&sub);
2341 }
2342
48220598
LP		 2343 return 0;
2344 }
2345
2346 break;
2347 }
2348
2349 if (arg_all)
2350 printf("%s=[unprintable]\n", name);
2351
2352 return 0;
2353}
2354
be8088a2 2355static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 2356 DBusMessage *m = NULL, *reply = NULL;
2357 const char *interface = "";
2358 int r;
2359 DBusError error;
2360 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 2361 UnitStatusInfo info;
582a507f 2362 ExecStatusInfo *p;
48220598
LP		 2363
2364 assert(bus);
2365 assert(path);
61cbdc4b 2366 assert(new_line);
48220598 2367
61cbdc4b 2368 zero(info);
48220598
LP		 2369 dbus_error_init(&error);
2370
2371 if (!(m = dbus_message_new_method_call(
2372 "org.freedesktop.systemd1",
2373 path,
2374 "org.freedesktop.DBus.Properties",
2375 "GetAll"))) {
2376 log_error("Could not allocate message.");
2377 r = -ENOMEM;
2378 goto finish;
2379 }
2380
2381 if (!dbus_message_append_args(m,
2382 DBUS_TYPE_STRING, &interface,
2383 DBUS_TYPE_INVALID)) {
2384 log_error("Could not append arguments to message.");
2385 r = -ENOMEM;
2386 goto finish;
2387 }
2388
2389 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2390 log_error("Failed to issue method call: %s", bus_error_message(&error));
48220598
LP		 2391 r = -EIO;
2392 goto finish;
2393 }
2394
2395 if (!dbus_message_iter_init(reply, &iter) ||
2396 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2397 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2398 log_error("Failed to parse reply.");
2399 r = -EIO;
2400 goto finish;
2401 }
2402
2403 dbus_message_iter_recurse(&iter, &sub);
2404
61cbdc4b
LP		 2405 if (*new_line)
2406 printf("\n");
2407
2408 *new_line = true;
2409
48220598
LP		 2410 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2411 const char *name;
2412
2413 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2414 log_error("Failed to parse reply.");
2415 r = -EIO;
2416 goto finish;
2417 }
2418
2419 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2420
48220598
LP		 2421 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2422 log_error("Failed to parse reply.");
2423 r = -EIO;
2424 goto finish;
2425 }
2426
2427 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2428 log_error("Failed to parse reply.");
2429 r = -EIO;
2430 goto finish;
2431 }
2432
2433 dbus_message_iter_recurse(&sub2, &sub3);
2434
61cbdc4b
LP		 2435 if (show_properties)
2436 r = print_property(name, &sub3);
2437 else
2438 r = status_property(name, &sub3, &info);
2439
2440 if (r < 0) {
48220598
LP		 2441 log_error("Failed to parse reply.");
2442 r = -EIO;
2443 goto finish;
2444 }
2445
2446 dbus_message_iter_next(&sub);
2447 }
2448
f1e36d67
LP		 2449 r = 0;
2450
22f4096c
LP		 2451 if (!show_properties)
2452 print_status_info(&info);
f1e36d67 2453
22f4096c 2454 if (!streq_ptr(info.active_state, "active") &&
be8088a2
LP		 2455 !streq_ptr(info.active_state, "reloading") &&
2456 streq(verb, "status"))
22f4096c
LP		 2457 /* According to LSB: "program not running" */
2458 r = 3;
61cbdc4b 2459
582a507f
LP		 2460 while ((p = info.exec)) {
2461 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2462 exec_status_info_free(p);
2463 }
2464
48220598
LP		 2465finish:
2466 if (m)
2467 dbus_message_unref(m);
2468
2469 if (reply)
2470 dbus_message_unref(reply);
2471
2472 dbus_error_free(&error);
2473
2474 return r;
2475}
2476
2477static int show(DBusConnection *bus, char **args, unsigned n) {
2478 DBusMessage *m = NULL, *reply = NULL;
22f4096c 2479 int r, ret = 0;
48220598
LP		 2480 DBusError error;
2481 unsigned i;
61cbdc4b 2482 bool show_properties, new_line = false;
48220598
LP		 2483
2484 assert(bus);
2485 assert(args);
2486
2487 dbus_error_init(&error);
2488
61cbdc4b
LP		 2489 show_properties = !streq(args[0], "status");
2490
ec14911e
LP		 2491 if (show_properties)
2492 pager_open();
2493
61cbdc4b 2494 if (show_properties && n <= 1) {
48220598
LP		 2495 /* If not argument is specified inspect the manager
2496 * itself */
2497
be8088a2 2498 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2499 goto finish;
2500 }
2501
2502 for (i = 1; i < n; i++) {
2503 const char *path = NULL;
2504 uint32_t id;
2505
598b557b
LP		 2506 if (safe_atou32(args[i], &id) < 0) {
2507
2508 /* Interpret as unit name */
48220598
LP		 2509
2510 if (!(m = dbus_message_new_method_call(
2511 "org.freedesktop.systemd1",
2512 "/org/freedesktop/systemd1",
2513 "org.freedesktop.systemd1.Manager",
e87d1818 2514 "LoadUnit"))) {
48220598 2515 log_error("Could not allocate message.");
22f4096c 2516 ret = -ENOMEM;
48220598
LP		 2517 goto finish;
2518 }
2519
2520 if (!dbus_message_append_args(m,
2521 DBUS_TYPE_STRING, &args[i],
2522 DBUS_TYPE_INVALID)) {
2523 log_error("Could not append arguments to message.");
22f4096c 2524 ret = -ENOMEM;
48220598
LP		 2525 goto finish;
2526 }
2527
ed2d7a44
LP		 2528 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2529
2530 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
4cf5d675 2531 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2532 ret = -EIO;
ed2d7a44
LP		 2533 goto finish;
2534 }
2535
2536 dbus_error_free(&error);
2537
2538 dbus_message_unref(m);
2539 if (!(m = dbus_message_new_method_call(
2540 "org.freedesktop.systemd1",
2541 "/org/freedesktop/systemd1",
2542 "org.freedesktop.systemd1.Manager",
2543 "GetUnit"))) {
2544 log_error("Could not allocate message.");
22f4096c 2545 ret = -ENOMEM;
ed2d7a44
LP		 2546 goto finish;
2547 }
2548
2549 if (!dbus_message_append_args(m,
2550 DBUS_TYPE_STRING, &args[i],
2551 DBUS_TYPE_INVALID)) {
2552 log_error("Could not append arguments to message.");
22f4096c 2553 ret = -ENOMEM;
ed2d7a44
LP		 2554 goto finish;
2555 }
2556
2557 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2558 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c
LP		 2559
2560 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2561 ret = 4; /* According to LSB: "program or service status is unknown" */
2562 else
2563 ret = -EIO;
ed2d7a44
LP		 2564 goto finish;
2565 }
2566 }
2567
598b557b
LP		 2568 } else if (show_properties) {
2569
2570 /* Interpret as job id */
48220598
LP		 2571
2572 if (!(m = dbus_message_new_method_call(
2573 "org.freedesktop.systemd1",
2574 "/org/freedesktop/systemd1",
2575 "org.freedesktop.systemd1.Manager",
2576 "GetJob"))) {
2577 log_error("Could not allocate message.");
22f4096c 2578 ret = -ENOMEM;
48220598
LP		 2579 goto finish;
2580 }
2581
2582 if (!dbus_message_append_args(m,
2583 DBUS_TYPE_UINT32, &id,
2584 DBUS_TYPE_INVALID)) {
2585 log_error("Could not append arguments to message.");
22f4096c 2586 ret = -ENOMEM;
48220598
LP		 2587 goto finish;
2588 }
48220598 2589
598b557b 2590 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2591 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2592 ret = -EIO;
598b557b
LP		 2593 goto finish;
2594 }
2595 } else {
2596
2597 /* Interpret as PID */
2598
2599 if (!(m = dbus_message_new_method_call(
2600 "org.freedesktop.systemd1",
2601 "/org/freedesktop/systemd1",
2602 "org.freedesktop.systemd1.Manager",
2603 "GetUnitByPID"))) {
2604 log_error("Could not allocate message.");
22f4096c 2605 ret = -ENOMEM;
598b557b
LP		 2606 goto finish;
2607 }
2608
2609 if (!dbus_message_append_args(m,
2610 DBUS_TYPE_UINT32, &id,
2611 DBUS_TYPE_INVALID)) {
2612 log_error("Could not append arguments to message.");
22f4096c 2613 ret = -ENOMEM;
598b557b
LP		 2614 goto finish;
2615 }
2616
ed2d7a44 2617 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2618 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2619 ret = -EIO;
ed2d7a44
LP		 2620 goto finish;
2621 }
48220598
LP		 2622 }
2623
2624 if (!dbus_message_get_args(reply, &error,
2625 DBUS_TYPE_OBJECT_PATH, &path,
2626 DBUS_TYPE_INVALID)) {
4cf5d675 2627 log_error("Failed to parse reply: %s", bus_error_message(&error));
22f4096c 2628 ret = -EIO;
48220598
LP		 2629 goto finish;
2630 }
2631
be8088a2 2632 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
22f4096c 2633 ret = r;
48220598
LP		 2634
2635 dbus_message_unref(m);
2636 dbus_message_unref(reply);
2637 m = reply = NULL;
2638 }
2639
48220598
LP		 2640finish:
2641 if (m)
2642 dbus_message_unref(m);
2643
2644 if (reply)
2645 dbus_message_unref(reply);
2646
2647 dbus_error_free(&error);
2648
22f4096c 2649 return ret;
0183528f
LP		 2650}
2651
7e4249b9
LP		 2652static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2653 DBusError error;
2654 DBusMessage *m = NULL, *reply = NULL;
2655
2656 assert(connection);
2657 assert(message);
2658
2659 dbus_error_init(&error);
2660
54165a39
LP		 2661 log_debug("Got D-Bus request: %s.%s() on %s",
2662 dbus_message_get_interface(message),
2663 dbus_message_get_member(message),
2664 dbus_message_get_path(message));
7e4249b9
LP		 2665
2666 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2667 log_error("Warning! D-Bus connection terminated.");
2668 dbus_connection_close(connection);
2669
2670 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2671 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2672 const char *id, *path;
2673
2674 if (!dbus_message_get_args(message, &error,
2675 DBUS_TYPE_STRING, &id,
2676 DBUS_TYPE_OBJECT_PATH, &path,
2677 DBUS_TYPE_INVALID))
4cf5d675 2678 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2679 else if (streq(dbus_message_get_member(message), "UnitNew"))
2680 printf("Unit %s added.\n", id);
2681 else
2682 printf("Unit %s removed.\n", id);
2683
2684 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2685 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2686 uint32_t id;
2687 const char *path;
2688
2689 if (!dbus_message_get_args(message, &error,
2690 DBUS_TYPE_UINT32, &id,
2691 DBUS_TYPE_OBJECT_PATH, &path,
2692 DBUS_TYPE_INVALID))
4cf5d675 2693 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2694 else if (streq(dbus_message_get_member(message), "JobNew"))
2695 printf("Job %u added.\n", id);
2696 else
2697 printf("Job %u removed.\n", id);
2698
2699
c4e2ceae 2700 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
7e4249b9
LP		 2701
2702 const char *path, *interface, *property = "Id";
2703 DBusMessageIter iter, sub;
2704
2705 path = dbus_message_get_path(message);
c4e2ceae
LP		 2706
2707 if (!dbus_message_get_args(message, &error,
2708 DBUS_TYPE_STRING, &interface,
2709 DBUS_TYPE_INVALID)) {
4cf5d675 2710 log_error("Failed to parse message: %s", bus_error_message(&error));
c4e2ceae
LP		 2711 goto finish;
2712 }
2713
2714 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2715 !streq(interface, "org.freedesktop.systemd1.Unit"))
2716 goto finish;
7e4249b9
LP		 2717
2718 if (!(m = dbus_message_new_method_call(
2719 "org.freedesktop.systemd1",
2720 path,
2721 "org.freedesktop.DBus.Properties",
2722 "Get"))) {
2723 log_error("Could not allocate message.");
2724 goto oom;
2725 }
2726
2727 if (!dbus_message_append_args(m,
2728 DBUS_TYPE_STRING, &interface,
2729 DBUS_TYPE_STRING, &property,
2730 DBUS_TYPE_INVALID)) {
2731 log_error("Could not append arguments to message.");
2732 goto finish;
2733 }
2734
2735 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
4cf5d675 2736 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2737 goto finish;
2738 }
2739
2740 if (!dbus_message_iter_init(reply, &iter) ||
2741 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2742 log_error("Failed to parse reply.");
2743 goto finish;
2744 }
2745
2746 dbus_message_iter_recurse(&iter, &sub);
2747
2748 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2749 const char *id;
2750
2751 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2752 log_error("Failed to parse reply.");
2753 goto finish;
2754 }
2755
2756 dbus_message_iter_get_basic(&sub, &id);
2757 printf("Unit %s changed.\n", id);
2758 } else {
2759 uint32_t id;
2760
2761 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2762 log_error("Failed to parse reply.");
2763 goto finish;
2764 }
2765
2766 dbus_message_iter_get_basic(&sub, &id);
2767 printf("Job %u changed.\n", id);
2768 }
2769 }
2770
2771finish:
2772 if (m)
2773 dbus_message_unref(m);
2774
2775 if (reply)
2776 dbus_message_unref(reply);
2777
2778 dbus_error_free(&error);
2779 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2780
2781oom:
2782 if (m)
2783 dbus_message_unref(m);
2784
2785 if (reply)
2786 dbus_message_unref(reply);
2787
2788 dbus_error_free(&error);
2789 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2790}
2791
2792static int monitor(DBusConnection *bus, char **args, unsigned n) {
2793 DBusMessage *m = NULL, *reply = NULL;
2794 DBusError error;
2795 int r;
2796
2797 dbus_error_init(&error);
2798
f4579ce7
LP		 2799 if (!private_bus) {
2800 dbus_bus_add_match(bus,
2801 "type='signal',"
2802 "sender='org.freedesktop.systemd1',"
2803 "interface='org.freedesktop.systemd1.Manager',"
2804 "path='/org/freedesktop/systemd1'",
2805 &error);
7e4249b9 2806
f4579ce7 2807 if (dbus_error_is_set(&error)) {
4cf5d675 2808 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2809 r = -EIO;
2810 goto finish;
2811 }
7e4249b9 2812
f4579ce7
LP		 2813 dbus_bus_add_match(bus,
2814 "type='signal',"
2815 "sender='org.freedesktop.systemd1',"
c4e2ceae
LP		 2816 "interface='org.freedesktop.DBus.Properties',"
2817 "member='PropertiesChanged'",
f4579ce7 2818 &error);
7e4249b9 2819
f4579ce7 2820 if (dbus_error_is_set(&error)) {
4cf5d675 2821 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2822 r = -EIO;
2823 goto finish;
2824 }
7e4249b9
LP		 2825 }
2826
2827 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2828 log_error("Failed to add filter.");
2829 r = -ENOMEM;
2830 goto finish;
2831 }
2832
2833 if (!(m = dbus_message_new_method_call(
2834 "org.freedesktop.systemd1",
2835 "/org/freedesktop/systemd1",
2836 "org.freedesktop.systemd1.Manager",
2837 "Subscribe"))) {
2838 log_error("Could not allocate message.");
2839 r = -ENOMEM;
2840 goto finish;
2841 }
2842
2843 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2844 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2845 r = -EIO;
2846 goto finish;
2847 }
2848
2849 while (dbus_connection_read_write_dispatch(bus, -1))
2850 ;
2851
2852 r = 0;
2853
2854finish:
2855
2856 /* This is slightly dirty, since we don't undo the filter or the matches. */
2857
2858 if (m)
2859 dbus_message_unref(m);
2860
2861 if (reply)
2862 dbus_message_unref(reply);
2863
2864 dbus_error_free(&error);
2865
2866 return r;
2867}
2868
2869static int dump(DBusConnection *bus, char **args, unsigned n) {
2870 DBusMessage *m = NULL, *reply = NULL;
2871 DBusError error;
2872 int r;
2873 const char *text;
2874
2875 dbus_error_init(&error);
2876
ec14911e
LP		 2877 pager_open();
2878
7e4249b9
LP		 2879 if (!(m = dbus_message_new_method_call(
2880 "org.freedesktop.systemd1",
2881 "/org/freedesktop/systemd1",
2882 "org.freedesktop.systemd1.Manager",
2883 "Dump"))) {
2884 log_error("Could not allocate message.");
2885 return -ENOMEM;
2886 }
2887
2888 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2889 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2890 r = -EIO;
2891 goto finish;
2892 }
2893
2894 if (!dbus_message_get_args(reply, &error,
2895 DBUS_TYPE_STRING, &text,
2896 DBUS_TYPE_INVALID)) {
4cf5d675 2897 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2898 r = -EIO;
2899 goto finish;
2900 }
2901
2902 fputs(text, stdout);
2903
2904 r = 0;
2905
2906finish:
2907 if (m)
2908 dbus_message_unref(m);
2909
2910 if (reply)
2911 dbus_message_unref(reply);
2912
2913 dbus_error_free(&error);
2914
2915 return r;
2916}
2917
2918static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2919 DBusMessage *m = NULL, *reply = NULL;
2920 DBusError error;
2921 int r;
2922 const char *name = "", *path, *id;
2923 dbus_bool_t cleanup = FALSE;
2924 DBusMessageIter iter, sub;
2925 const char
2926 *interface = "org.freedesktop.systemd1.Unit",
2927 *property = "Id";
2928
2929 dbus_error_init(&error);
2930
2931 if (!(m = dbus_message_new_method_call(
2932 "org.freedesktop.systemd1",
2933 "/org/freedesktop/systemd1",
2934 "org.freedesktop.systemd1.Manager",
2935 "CreateSnapshot"))) {
2936 log_error("Could not allocate message.");
2937 return -ENOMEM;
2938 }
2939
2940 if (n > 1)
2941 name = args[1];
2942
2943 if (!dbus_message_append_args(m,
2944 DBUS_TYPE_STRING, &name,
2945 DBUS_TYPE_BOOLEAN, &cleanup,
2946 DBUS_TYPE_INVALID)) {
2947 log_error("Could not append arguments to message.");
2948 r = -ENOMEM;
2949 goto finish;
2950 }
2951
2952 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2953 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2954 r = -EIO;
2955 goto finish;
2956 }
2957
2958 if (!dbus_message_get_args(reply, &error,
2959 DBUS_TYPE_OBJECT_PATH, &path,
2960 DBUS_TYPE_INVALID)) {
4cf5d675 2961 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2962 r = -EIO;
2963 goto finish;
2964 }
2965
2966 dbus_message_unref(m);
2967 if (!(m = dbus_message_new_method_call(
2968 "org.freedesktop.systemd1",
2969 path,
2970 "org.freedesktop.DBus.Properties",
2971 "Get"))) {
2972 log_error("Could not allocate message.");
2973 return -ENOMEM;
2974 }
2975
2976 if (!dbus_message_append_args(m,
2977 DBUS_TYPE_STRING, &interface,
2978 DBUS_TYPE_STRING, &property,
2979 DBUS_TYPE_INVALID)) {
2980 log_error("Could not append arguments to message.");
2981 r = -ENOMEM;
2982 goto finish;
2983 }
2984
2985 dbus_message_unref(reply);
2986 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2987 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2988 r = -EIO;
2989 goto finish;
2990 }
2991
2992 if (!dbus_message_iter_init(reply, &iter) ||
2993 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2994 log_error("Failed to parse reply.");
2995 r = -EIO;
2996 goto finish;
2997 }
2998
2999 dbus_message_iter_recurse(&iter, &sub);
3000
3001 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3002 log_error("Failed to parse reply.");
3003 r = -EIO;
3004 goto finish;
3005 }
3006
3007 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 3008
3009 if (!arg_quiet)
3010 puts(id);
7e4249b9
LP		 3011 r = 0;
3012
3013finish:
3014 if (m)
3015 dbus_message_unref(m);
3016
3017 if (reply)
3018 dbus_message_unref(reply);
3019
3020 dbus_error_free(&error);
3021
3022 return r;
3023}
3024
6759e7a7
LP		 3025static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
3026 DBusMessage *m = NULL, *reply = NULL;
3027 int r;
3028 DBusError error;
3029 unsigned i;
3030
3031 assert(bus);
3032 assert(args);
3033
3034 dbus_error_init(&error);
3035
3036 for (i = 1; i < n; i++) {
3037 const char *path = NULL;
3038
3039 if (!(m = dbus_message_new_method_call(
3040 "org.freedesktop.systemd1",
3041 "/org/freedesktop/systemd1",
3042 "org.freedesktop.systemd1.Manager",
3043 "GetUnit"))) {
3044 log_error("Could not allocate message.");
3045 r = -ENOMEM;
3046 goto finish;
3047 }
3048
3049 if (!dbus_message_append_args(m,
3050 DBUS_TYPE_STRING, &args[i],
3051 DBUS_TYPE_INVALID)) {
3052 log_error("Could not append arguments to message.");
3053 r = -ENOMEM;
3054 goto finish;
3055 }
3056
3057 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3058 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3059 r = -EIO;
3060 goto finish;
3061 }
3062
3063 if (!dbus_message_get_args(reply, &error,
3064 DBUS_TYPE_OBJECT_PATH, &path,
3065 DBUS_TYPE_INVALID)) {
4cf5d675 3066 log_error("Failed to parse reply: %s", bus_error_message(&error));
6759e7a7
LP		 3067 r = -EIO;
3068 goto finish;
3069 }
3070
3071 dbus_message_unref(m);
3072 if (!(m = dbus_message_new_method_call(
3073 "org.freedesktop.systemd1",
3074 path,
3075 "org.freedesktop.systemd1.Snapshot",
3076 "Remove"))) {
3077 log_error("Could not allocate message.");
3078 r = -ENOMEM;
3079 goto finish;
3080 }
3081
3082 dbus_message_unref(reply);
3083 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3084 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3085 r = -EIO;
3086 goto finish;
3087 }
3088
3089 dbus_message_unref(m);
3090 dbus_message_unref(reply);
3091 m = reply = NULL;
3092 }
3093
3094 r = 0;
3095
3096finish:
3097 if (m)
3098 dbus_message_unref(m);
3099
3100 if (reply)
3101 dbus_message_unref(reply);
3102
3103 dbus_error_free(&error);
3104
3105 return r;
3106}
3107
ee5762e3 3108static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 3109 DBusMessage *m = NULL, *reply = NULL;
3110 DBusError error;
3111 int r;
3112 const char *method;
3113
3114 dbus_error_init(&error);
3115
e4b61340
LP		 3116 if (arg_action == ACTION_RELOAD)
3117 method = "Reload";
3118 else if (arg_action == ACTION_REEXEC)
3119 method = "Reexecute";
3120 else {
3121 assert(arg_action == ACTION_SYSTEMCTL);
3122
3123 method =
20b09ca7
LP		 3124 streq(args[0], "clear-jobs") ||
3125 streq(args[0], "cancel") ? "ClearJobs" :
3126 streq(args[0], "daemon-reexec") ? "Reexecute" :
3127 streq(args[0], "reset-failed") ? "ResetFailed" :
3128 streq(args[0], "halt") ? "Halt" :
3129 streq(args[0], "poweroff") ? "PowerOff" :
3130 streq(args[0], "reboot") ? "Reboot" :
3131 streq(args[0], "kexec") ? "KExec" :
3132 streq(args[0], "exit") ? "Exit" :
3133 /* "daemon-reload" */ "Reload";
e4b61340 3134 }
7e4249b9
LP		 3135
3136 if (!(m = dbus_message_new_method_call(
3137 "org.freedesktop.systemd1",
3138 "/org/freedesktop/systemd1",
3139 "org.freedesktop.systemd1.Manager",
3140 method))) {
3141 log_error("Could not allocate message.");
3142 return -ENOMEM;
3143 }
3144
3145 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 3146
3147 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3148 /* There's always a fallback possible for
3149 * legacy actions. */
aabd9b11 3150 r = -EADDRNOTAVAIL;
e4b61340
LP		 3151 goto finish;
3152 }
3153
4cf5d675 3154 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3155 r = -EIO;
3156 goto finish;
3157 }
3158
aabd9b11 3159 r = 0;
7e4249b9
LP		 3160
3161finish:
3162 if (m)
3163 dbus_message_unref(m);
3164
3165 if (reply)
3166 dbus_message_unref(reply);
3167
3168 dbus_error_free(&error);
3169
3170 return r;
3171}
3172
fdf20a31 3173static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
5632e374
LP		 3174 DBusMessage *m = NULL, *reply = NULL;
3175 unsigned i;
3176 int r;
3177 DBusError error;
3178
3179 assert(bus);
3180 dbus_error_init(&error);
3181
3182 if (n <= 1)
ee5762e3 3183 return daemon_reload(bus, args, n);
5632e374
LP		 3184
3185 for (i = 1; i < n; i++) {
3186
3187 if (!(m = dbus_message_new_method_call(
3188 "org.freedesktop.systemd1",
3189 "/org/freedesktop/systemd1",
3190 "org.freedesktop.systemd1.Manager",
fdf20a31 3191 "ResetFailedUnit"))) {
5632e374
LP		 3192 log_error("Could not allocate message.");
3193 r = -ENOMEM;
3194 goto finish;
3195 }
3196
3197 if (!dbus_message_append_args(m,
3198 DBUS_TYPE_STRING, args + i,
3199 DBUS_TYPE_INVALID)) {
3200 log_error("Could not append arguments to message.");
3201 r = -ENOMEM;
3202 goto finish;
3203 }
3204
3205 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3206 log_error("Failed to issue method call: %s", bus_error_message(&error));
5632e374
LP		 3207 r = -EIO;
3208 goto finish;
3209 }
3210
3211 dbus_message_unref(m);
3212 dbus_message_unref(reply);
3213 m = reply = NULL;
3214 }
3215
3216 r = 0;
3217
3218finish:
3219 if (m)
3220 dbus_message_unref(m);
3221
3222 if (reply)
3223 dbus_message_unref(reply);
3224
3225 dbus_error_free(&error);
3226
3227 return r;
3228}
3229
7e4249b9
LP		 3230static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3231 DBusMessage *m = NULL, *reply = NULL;
3232 DBusError error;
3233 DBusMessageIter iter, sub, sub2;
3234 int r;
3235 const char
3236 *interface = "org.freedesktop.systemd1.Manager",
3237 *property = "Environment";
3238
3239 dbus_error_init(&error);
3240
ec14911e
LP		 3241 pager_open();
3242
7e4249b9
LP		 3243 if (!(m = dbus_message_new_method_call(
3244 "org.freedesktop.systemd1",
3245 "/org/freedesktop/systemd1",
3246 "org.freedesktop.DBus.Properties",
3247 "Get"))) {
3248 log_error("Could not allocate message.");
3249 return -ENOMEM;
3250 }
3251
3252 if (!dbus_message_append_args(m,
3253 DBUS_TYPE_STRING, &interface,
3254 DBUS_TYPE_STRING, &property,
3255 DBUS_TYPE_INVALID)) {
3256 log_error("Could not append arguments to message.");
3257 r = -ENOMEM;
3258 goto finish;
3259 }
3260
3261 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3262 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3263 r = -EIO;
3264 goto finish;
3265 }
3266
3267 if (!dbus_message_iter_init(reply, &iter) ||
3268 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3269 log_error("Failed to parse reply.");
3270 r = -EIO;
3271 goto finish;
3272 }
3273
3274 dbus_message_iter_recurse(&iter, &sub);
3275
3276 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3277 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3278 log_error("Failed to parse reply.");
3279 r = -EIO;
3280 goto finish;
3281 }
3282
3283 dbus_message_iter_recurse(&sub, &sub2);
3284
3285 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3286 const char *text;
3287
3288 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3289 log_error("Failed to parse reply.");
3290 r = -EIO;
3291 goto finish;
3292 }
3293
3294 dbus_message_iter_get_basic(&sub2, &text);
3295 printf("%s\n", text);
3296
3297 dbus_message_iter_next(&sub2);
3298 }
3299
3300 r = 0;
3301
3302finish:
3303 if (m)
3304 dbus_message_unref(m);
3305
3306 if (reply)
3307 dbus_message_unref(reply);
3308
3309 dbus_error_free(&error);
3310
3311 return r;
3312}
3313
3314static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3315 DBusMessage *m = NULL, *reply = NULL;
3316 DBusError error;
3317 int r;
3318 const char *method;
3319 DBusMessageIter iter, sub;
3320 unsigned i;
3321
3322 dbus_error_init(&error);
3323
3324 method = streq(args[0], "set-environment")
3325 ? "SetEnvironment"
3326 : "UnsetEnvironment";
3327
3328 if (!(m = dbus_message_new_method_call(
3329 "org.freedesktop.systemd1",
3330 "/org/freedesktop/systemd1",
3331 "org.freedesktop.systemd1.Manager",
3332 method))) {
3333
3334 log_error("Could not allocate message.");
3335 return -ENOMEM;
3336 }
3337
3338 dbus_message_iter_init_append(m, &iter);
3339
3340 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3341 log_error("Could not append arguments to message.");
3342 r = -ENOMEM;
3343 goto finish;
3344 }
3345
3346 for (i = 1; i < n; i++)
3347 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3348 log_error("Could not append arguments to message.");
3349 r = -ENOMEM;
3350 goto finish;
3351 }
3352
3353 if (!dbus_message_iter_close_container(&iter, &sub)) {
3354 log_error("Could not append arguments to message.");
3355 r = -ENOMEM;
3356 goto finish;
3357 }
3358
3359 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3360 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3361 r = -EIO;
3362 goto finish;
3363 }
3364
3365 r = 0;
3366
3367finish:
3368 if (m)
3369 dbus_message_unref(m);
3370
3371 if (reply)
3372 dbus_message_unref(reply);
3373
3374 dbus_error_free(&error);
3375
3376 return r;
3377}
3378
ee5762e3
LP		 3379typedef struct {
3380 char *name;
3381 char *path;
3382
3383 char **aliases;
3384 char **wanted_by;
3385} InstallInfo;
3386
3387static Hashmap *will_install = NULL, *have_installed = NULL;
3388static Set *remove_symlinks_to = NULL;
560d8f23 3389static unsigned n_symlinks = 0;
ee5762e3
LP		 3390
3391static void install_info_free(InstallInfo *i) {
3392 assert(i);
3393
3394 free(i->name);
3395 free(i->path);
3396 strv_free(i->aliases);
3397 strv_free(i->wanted_by);
3398 free(i);
3399}
3400
3401static void install_info_hashmap_free(Hashmap *m) {
3402 InstallInfo *i;
3403
3404 while ((i = hashmap_steal_first(m)))
3405 install_info_free(i);
3406
3407 hashmap_free(m);
3408}
3409
ee5762e3
LP		 3410static int install_info_add(const char *name) {
3411 InstallInfo *i;
3412 int r;
3413
3414 assert(will_install);
3415
b9c0d441 3416 if (!unit_name_is_valid_no_type(name, true)) {
71fad675 3417 log_warning("Unit name %s is not a valid unit name.", name);
ee5762e3 3418 return -EINVAL;
71fad675 3419 }
ee5762e3
LP		 3420
3421 if (hashmap_get(have_installed, name) ||
3422 hashmap_get(will_install, name))
3423 return 0;
3424
3425 if (!(i = new0(InstallInfo, 1))) {
3426 r = -ENOMEM;
3427 goto fail;
3428 }
3429
3430 if (!(i->name = strdup(name))) {
3431 r = -ENOMEM;
3432 goto fail;
3433 }
3434
3435 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3436 goto fail;
3437
3438 return 0;
3439
3440fail:
3441 if (i)
3442 install_info_free(i);
3443
3444 return r;
3445}
3446
3447static int config_parse_also(
3448 const char *filename,
3449 unsigned line,
3450 const char *section,
3451 const char *lvalue,
3452 const char *rvalue,
3453 void *data,
3454 void *userdata) {
3455
3456 char *w;
3457 size_t l;
3458 char *state;
3459
3460 assert(filename);
3461 assert(lvalue);
3462 assert(rvalue);
3463
3464 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3465 char *n;
3466 int r;
3467
3468 if (!(n = strndup(w, l)))
3469 return -ENOMEM;
3470
71fad675
LP		 3471 if ((r = install_info_add(n)) < 0) {
3472 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3473 free(n);
ee5762e3 3474 return r;
71fad675
LP		 3475 }
3476
3477 free(n);
ee5762e3
LP		 3478 }
3479
3480 return 0;
3481}
3482
3483static int mark_symlink_for_removal(const char *p) {
3484 char *n;
3485 int r;
3486
3487 assert(p);
3488 assert(path_is_absolute(p));
3489
3490 if (!remove_symlinks_to)
3491 return 0;
3492
3493 if (!(n = strdup(p)))
3494 return -ENOMEM;
3495
3496 path_kill_slashes(n);
3497
3498 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3499 free(n);
3500 return r == -EEXIST ? 0 : r;
3501 }
3502
3503 return 0;
3504}
3505
3506static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3507 int r = 0;
3508 DIR *d;
3509 struct dirent *de;
3510
3511 assert(fd >= 0);
3512 assert(root);
3513 assert(deleted);
3514
3515 if (!(d = fdopendir(fd))) {
3516 close_nointr_nofail(fd);
3517 return -errno;
3518 }
3519
3520 rewinddir(d);
3521
3522 while ((de = readdir(d))) {
3523 bool is_dir = false, is_link = false;
3524
3525 if (ignore_file(de->d_name))
3526 continue;
3527
3528 if (de->d_type == DT_LNK)
3529 is_link = true;
3530 else if (de->d_type == DT_DIR)
3531 is_dir = true;
3532 else if (de->d_type == DT_UNKNOWN) {
3533 struct stat st;
3534
3535 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3536 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3537
3538 if (r == 0)
3539 r = -errno;
3540 continue;
3541 }
3542
3543 is_link = S_ISLNK(st.st_mode);
3544 is_dir = S_ISDIR(st.st_mode);
3545 } else
3546 continue;
3547
3548 if (is_dir) {
3549 int nfd, q;
3550 char *p;
3551
3552 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3553 log_error("Failed to open %s/%s: %m", root, de->d_name);
3554
3555 if (r == 0)
3556 r = -errno;
3557 continue;
3558 }
3559
3560 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3561 log_error("Failed to allocate directory string.");
3562 close_nointr_nofail(nfd);
3563 r = -ENOMEM;
3564 break;
3565 }
3566
3567 /* This will close nfd, regardless whether it succeeds or not */
3568 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3569 free(p);
3570
3571 if (r == 0)
e364ad06 3572 r = q;
ee5762e3
LP		 3573
3574 } else if (is_link) {
3575 char *p, *dest, *c;
3576 int q;
3577
3578 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3579 log_error("Failed to allocate symlink string.");
3580 r = -ENOMEM;
3581 break;
3582 }
3583
3584 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3585 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3586 free(p);
3587
3588 if (r == 0)
3589 r = q;
3590 continue;
3591 }
3592
3593 if ((c = canonicalize_file_name(dest))) {
3594 /* This might fail if the destination
3595 * is already removed */
3596
3597 free(dest);
3598 dest = c;
3599 }
3600
3601 path_kill_slashes(dest);
3602 if (set_get(remove_symlinks_to, dest)) {
3603
3604 if (!arg_quiet)
3605 log_info("rm '%s'", p);
3606
3607 if (unlink(p) < 0) {
3608 log_error("Cannot unlink symlink %s: %m", p);
3609
3610 if (r == 0)
3611 r = -errno;
3612 } else {
3613 rmdir_parents(p, config_path);
3614 path_kill_slashes(p);
3615
3616 if (!set_get(remove_symlinks_to, p)) {
3617
3618 if ((r = mark_symlink_for_removal(p)) < 0) {
3619 if (r == 0)
3620 r = q;
3621 } else
3622 *deleted = true;
3623 }
3624 }
3625 }
3626
3627 free(p);
3628 free(dest);
3629 }
3630 }
3631
3632 closedir(d);
3633
3634 return r;
3635}
3636
3637static int remove_marked_symlinks(const char *config_path) {
3638 int fd, r = 0;
3639 bool deleted;
3640
3641 assert(config_path);
3642
3643 if (set_size(remove_symlinks_to) <= 0)
3644 return 0;
3645
3646 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3647 return -errno;
3648
3649 do {
3650 int q, cfd;
3651 deleted = false;
3652
3653 if ((cfd = dup(fd)) < 0) {
3654 r = -errno;
3655 break;
3656 }
3657
3658 /* This takes possession of cfd and closes it */
3659 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3660 if (r == 0)
3661 r = q;
3662 }
3663 } while (deleted);
3664
3665 close_nointr_nofail(fd);
3666
3667 return r;
3668}
3669
3670static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3671 int r;
3672
3673 assert(old_path);
3674 assert(new_path);
3675 assert(verb);
3676
3677 if (streq(verb, "enable")) {
3678 char *dest;
3679
3680 mkdir_parents(new_path, 0755);
3681
3682 if (symlink(old_path, new_path) >= 0) {
3683
3684 if (!arg_quiet)
3685 log_info("ln -s '%s' '%s'", old_path, new_path);
3686
3687 return 0;
3688 }
3689
3690 if (errno != EEXIST) {
3691 log_error("Cannot link %s to %s: %m", old_path, new_path);
3692 return -errno;
3693 }
3694
3695 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3696
3697 if (errno == EINVAL) {
3698 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3699 return -EEXIST;
3700 }
3701
3702 log_error("readlink() failed: %s", strerror(-r));
3703 return r;
3704 }
3705
3706 if (streq(dest, old_path)) {
3707 free(dest);
3708 return 0;
3709 }
3710
3711 if (!arg_force) {
3712 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3713 free(dest);
3714 return -EEXIST;
3715 }
3716
3717 free(dest);
3718 unlink(new_path);
3719
3720 if (!arg_quiet)
3721 log_info("ln -s '%s' '%s'", old_path, new_path);
3722
3723 if (symlink(old_path, new_path) >= 0)
3724 return 0;
3725
3726 log_error("Cannot link %s to %s: %m", old_path, new_path);
3727 return -errno;
3728
3729 } else if (streq(verb, "disable")) {
3730 char *dest;
3731
3732 if ((r = mark_symlink_for_removal(old_path)) < 0)
3733 return r;
3734
3735 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3736 if (errno == ENOENT)
3737 return 0;
3738
3739 if (errno == EINVAL) {
3740 log_warning("File %s not a symlink, ignoring.", old_path);
3741 return 0;
3742 }
3743
3744 log_error("readlink() failed: %s", strerror(-r));
3745 return r;
3746 }
3747
3748 if (!streq(dest, old_path)) {
3749 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3750 free(dest);
3751 return 0;
3752 }
3753
3754 free(dest);
3755
3756 if ((r = mark_symlink_for_removal(new_path)) < 0)
3757 return r;
3758
3759 if (!arg_quiet)
3760 log_info("rm '%s'", new_path);
3761
3762 if (unlink(new_path) >= 0)
3763 return 0;
3764
3765 log_error("Cannot unlink %s: %m", new_path);
3766 return -errno;
3767
3768 } else if (streq(verb, "is-enabled")) {
3769 char *dest;
3770
3771 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3772
3773 if (errno == ENOENT || errno == EINVAL)
3774 return 0;
3775
3776 log_error("readlink() failed: %s", strerror(-r));
3777 return r;
3778 }
3779
3780 if (streq(dest, old_path)) {
3781 free(dest);
3782 return 1;
3783 }
3784
3785 return 0;
3786 }
3787
3788 assert_not_reached("Unknown action.");
3789}
3790
3791static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3792 char **s;
3793 char *alias_path = NULL;
3794 int r;
3795
3796 assert(verb);
3797 assert(i);
3798 assert(config_path);
3799
3800 STRV_FOREACH(s, i->aliases) {
3801
ee5762e3
LP		 3802 free(alias_path);
3803 if (!(alias_path = path_make_absolute(*s, config_path))) {
3804 log_error("Out of memory");
3805 r = -ENOMEM;
3806 goto finish;
3807 }
3808
3809 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3810 goto finish;
3811
3812 if (streq(verb, "disable"))
3813 rmdir_parents(alias_path, config_path);
3814 }
ee5762e3
LP		 3815 r = 0;
3816
3817finish:
3818 free(alias_path);
3819
3820 return r;
3821}
3822
3823static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3824 char **s;
3825 char *alias_path = NULL;
3826 int r;
3827
3828 assert(verb);
3829 assert(i);
3830 assert(config_path);
3831
3832 STRV_FOREACH(s, i->wanted_by) {
b9c0d441 3833 if (!unit_name_is_valid_no_type(*s, true)) {
ee5762e3
LP		 3834 log_error("Invalid name %s.", *s);
3835 r = -EINVAL;
3836 goto finish;
3837 }
3838
3839 free(alias_path);
3840 alias_path = NULL;
3841
3842 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3843 log_error("Out of memory");
3844 r = -ENOMEM;
3845 goto finish;
3846 }
3847
3848 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3849 goto finish;
3850
3851 if (streq(verb, "disable"))
3852 rmdir_parents(alias_path, config_path);
3853 }
3854
3855 r = 0;
3856
3857finish:
3858 free(alias_path);
3859
3860 return r;
3861}
3862
3863static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3864
3865 const ConfigItem items[] = {
3866 { "Alias", config_parse_strv, &i->aliases, "Install" },
3867 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3868 { "Also", config_parse_also, NULL, "Install" },
3869
3870 { NULL, NULL, NULL, NULL }
3871 };
3872
3873 char **p;
3874 char *filename = NULL;
3875 FILE *f = NULL;
3876 int r;
3877
3878 assert(paths);
3879 assert(i);
3880
3881 STRV_FOREACH(p, paths->unit_path) {
3882 int fd;
3883
3884 if (!(filename = path_make_absolute(i->name, *p))) {
3885 log_error("Out of memory");
3886 return -ENOMEM;
3887 }
3888
3889 /* Ensure that we don't follow symlinks */
3890 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3891 if ((f = fdopen(fd, "re")))
3892 break;
3893
3894 if (errno == ELOOP) {
3895 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3896 free(filename);
3897 return -errno;
3898 }
3899
3900 if (errno != ENOENT) {
3901 log_error("Failed to open %s: %m", filename);
3902 free(filename);
3903 return -errno;
3904 }
3905
3906 free(filename);
3907 filename = NULL;
3908 }
3909
3910 if (!f) {
c8b2e52c
LP		 3911#if defined(TARGET_FEDORA) && defined (HAVE_SYSV_COMPAT)
3912
3913 if (endswith(i->name, ".service")) {
3914 char *sysv;
3915 bool exists;
3916
3917 if (asprintf(&sysv, SYSTEM_SYSVINIT_PATH "/%s", i->name) < 0) {
3918 log_error("Out of memory");
3919 return -ENOMEM;
3920 }
3921
3922 sysv[strlen(sysv) - sizeof(".service") + 1] = 0;
3923 exists = access(sysv, F_OK) >= 0;
3924
3925 if (exists) {
3926 pid_t pid;
3927 siginfo_t status;
3928
3929 const char *argv[] = {
3930 "/sbin/chkconfig",
3931 NULL,
3932 NULL,
3933 NULL
3934 };
3935
3936 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", i->name);
3937
3938 argv[1] = file_name_from_path(sysv);
3939 argv[2] =
3940 streq(verb, "enable") ? "on" :
3941 streq(verb, "disable") ? "off" : NULL;
3942
3943 log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2]));
3944
3945 if ((pid = fork()) < 0) {
3946 log_error("Failed to fork: %m");
3947 free(sysv);
3948 return -errno;
3949 } else if (pid == 0) {
3950 execv(argv[0], (char**) argv);
3951 _exit(EXIT_FAILURE);
3952 }
3953
3954 free(sysv);
3955
3956 if ((r = wait_for_terminate(pid, &status)) < 0)
3957 return r;
3958
3959 if (status.si_code == CLD_EXITED) {
3960 if (status.si_status == 0 && (streq(verb, "enable") || streq(verb, "disable")))
3961 n_symlinks ++;
3962
3963 return status.si_status == 0 ? 0 : -EINVAL;
3964 } else
3965 return -EPROTO;
3966 }
3967
3968 free(sysv);
3969 }
3970
3971#endif
3972
ee5762e3
LP		 3973 log_error("Couldn't find %s.", i->name);
3974 return -ENOENT;
3975 }
3976
3977 i->path = filename;
3978
3979 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3980 fclose(f);
3981 return r;
3982 }
3983
560d8f23
LP		 3984 n_symlinks += strv_length(i->aliases);
3985 n_symlinks += strv_length(i->wanted_by);
3986
ee5762e3
LP		 3987 fclose(f);
3988
3989 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3990 return r;
3991
3992 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3993 return r;
3994
3995 if ((r = mark_symlink_for_removal(filename)) < 0)
3996 return r;
3997
3998 if ((r = remove_marked_symlinks(config_path)) < 0)
3999 return r;
4000
4001 return 0;
4002}
4003
4004static char *get_config_path(void) {
4005
af2d49f7
LP		 4006 if (arg_user && arg_global)
4007 return strdup(USER_CONFIG_UNIT_PATH);
ee5762e3 4008
af2d49f7 4009 if (arg_user) {
ee5762e3
LP		 4010 char *p;
4011
af2d49f7 4012 if (user_config_home(&p) < 0)
ee5762e3
LP		 4013 return NULL;
4014
4015 return p;
4016 }
4017
4018 return strdup(SYSTEM_CONFIG_UNIT_PATH);
4019}
4020
4021static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
4022 DBusError error;
4023 int r;
4024 LookupPaths paths;
4025 char *config_path = NULL;
4026 unsigned j;
4027 InstallInfo *i;
4028 const char *verb = args[0];
4029
4030 dbus_error_init(&error);
4031
4032 zero(paths);
af2d49f7 4033 if ((r = lookup_paths_init(&paths, arg_user ? MANAGER_USER : MANAGER_SYSTEM)) < 0) {
ee5762e3
LP		 4034 log_error("Failed to determine lookup paths: %s", strerror(-r));
4035 goto finish;
4036 }
4037
4038 if (!(config_path = get_config_path())) {
4039 log_error("Failed to determine config path");
4040 r = -ENOMEM;
4041 goto finish;
4042 }
4043
4044 will_install = hashmap_new(string_hash_func, string_compare_func);
4045 have_installed = hashmap_new(string_hash_func, string_compare_func);
4046
4047 if (!will_install || !have_installed) {
4048 log_error("Failed to allocate unit sets.");
4049 r = -ENOMEM;
4050 goto finish;
4051 }
4052
4053 if (!arg_defaults && streq(verb, "disable"))
4054 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
4055 log_error("Failed to allocate symlink sets.");
4056 r = -ENOMEM;
4057 goto finish;
4058 }
4059
4060 for (j = 1; j < n; j++)
71fad675
LP		 4061 if ((r = install_info_add(args[j])) < 0) {
4062 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
ee5762e3 4063 goto finish;
71fad675 4064 }
ee5762e3
LP		 4065
4066 while ((i = hashmap_first(will_install))) {
4067 int q;
4068
4069 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
4070
4071 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
4072
4073 if (q < 0) {
4074 if (r == 0)
4075 r = q;
4076 goto finish;
4077 }
4078
4079 /* In test mode and found something */
4080 r = 1;
4081 break;
4082 }
4083 }
4084
4085 if (streq(verb, "is-enabled"))
4086 r = r > 0 ? 0 : -ENOENT;
560d8f23
LP		 4087 else {
4088 if (n_symlinks <= 0)
4089 log_warning("Unit files contain no applicable installation information. Ignoring.");
4090
4091 if (bus &&
4092 /* Don't try to reload anything if the user asked us to not do this */
4093 !arg_no_reload &&
4094 /* Don't try to reload anything when updating a unit globally */
4095 !arg_global &&
4096 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
af2d49f7 4097 (arg_user || sd_booted() > 0) &&
560d8f23 4098 /* Don't try to reload anything if we are running in a chroot environment */
af2d49f7 4099 (arg_user || running_in_chroot() <= 0) ) {
560d8f23 4100 int q;
ee5762e3 4101
560d8f23
LP		 4102 if ((q = daemon_reload(bus, args, n)) < 0)
4103 r = q;
4104 }
ee5762e3
LP		 4105 }
4106
4107finish:
4108 install_info_hashmap_free(will_install);
4109 install_info_hashmap_free(have_installed);
4110
4111 set_free_free(remove_symlinks_to);
4112
4113 lookup_paths_free(&paths);
4114
4115 free(config_path);
4116
4117 return r;
4118}
4119
e4b61340 4120static int systemctl_help(void) {
7e4249b9 4121
2e33c433 4122 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 4123 "Send control commands to or query the systemd manager.\n\n"
8a0867d6
LP		 4124 " -h --help Show this help\n"
4125 " --version Show package version\n"
4126 " -t --type=TYPE List only units of a particular type\n"
4127 " -p --property=NAME Show only properties by this name\n"
4128 " -a --all Show all units/properties, including dead/empty ones\n"
4129 " --full Don't ellipsize unit names on output\n"
4130 " --fail When queueing a new job, fail if conflicting jobs are\n"
4131 " pending\n"
4132 " -q --quiet Suppress output\n"
4133 " --no-block Do not wait until operation finished\n"
0736af98 4134 " --no-pager Do not pipe output into a pager.\n"
af2d49f7
LP		 4135 " --system Connect to system manager\n"
4136 " --user Connect to user service manager\n"
8a0867d6
LP		 4137 " --order When generating graph for dot, show only order\n"
4138 " --require When generating graph for dot, show only requirement\n"
4139 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4140 " --global Enable/disable unit files globally\n"
4141 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4142 " configuration\n"
501fc174
LP		 4143 " --no-ask-password\n"
4144 " Do not ask for system passwords\n"
8a0867d6
LP		 4145 " --kill-mode=MODE How to send signal\n"
4146 " --kill-who=WHO Who to send signal to\n"
4147 " -s --signal=SIGNAL Which signal to send\n"
4148 " -f --force When enabling unit files, override existing symlinks\n"
4149 " When shutting down, execute action immediately\n"
4150 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 4151 "Commands:\n"
4152 " list-units List units\n"
ee5762e3
LP		 4153 " start [NAME...] Start (activate) one or more units\n"
4154 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 4155 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 4156 " restart [NAME...] Start or restart one or more units\n"
4157 " try-restart [NAME...] Restart one or more units if active\n"
4158 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4159 " otherwise start or restart\n"
4160 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4161 " otherwise restart if active\n"
7e4249b9 4162 " isolate [NAME] Start one unit and stop all others\n"
8a0867d6 4163 " kill [NAME...] Send signal to processes of a unit\n"
ee5762e3 4164 " is-active [NAME...] Check whether units are active\n"
75676b72 4165 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 4166 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3 4167 " units/jobs or the manager\n"
fdf20a31
MM		 4168 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4169 " units\n"
ee5762e3
LP		 4170 " enable [NAME...] Enable one or more unit files\n"
4171 " disable [NAME...] Disable one or more unit files\n"
4172 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 4173 " load [NAME...] Load one or more units\n"
4174 " list-jobs List jobs\n"
ee5762e3 4175 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 4176 " monitor Monitor unit/job changes\n"
4177 " dump Dump server status\n"
4445a875 4178 " dot Dump dependency graph for dot(1)\n"
7e4249b9 4179 " snapshot [NAME] Create a snapshot\n"
6759e7a7 4180 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 4181 " daemon-reload Reload systemd manager configuration\n"
4182 " daemon-reexec Reexecute systemd manager\n"
7e4249b9
LP		 4183 " show-environment Dump environment\n"
4184 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5 4185 " unset-environment [NAME...] Unset one or more environment variables\n"
20b09ca7
LP		 4186 " default Enter system default mode\n"
4187 " rescue Enter system rescue mode\n"
4188 " emergency Enter system emergency mode\n"
514f4ef5 4189 " halt Shut down and halt the system\n"
2e33c433 4190 " poweroff Shut down and power-off the system\n"
514f4ef5 4191 " reboot Shut down and reboot the system\n"
20b09ca7 4192 " kexec Shut down and reboot the system with kexec\n"
af2d49f7 4193 " exit Ask for user instance termination\n",
5b6319dc 4194 program_invocation_short_name);
7e4249b9
LP		 4195
4196 return 0;
4197}
4198
e4b61340
LP		 4199static int halt_help(void) {
4200
2e33c433 4201 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4202 "%s the system.\n\n"
4203 " --help Show this help\n"
4204 " --halt Halt the machine\n"
4205 " -p --poweroff Switch off the machine\n"
4206 " --reboot Reboot the machine\n"
2e33c433
LP		 4207 " -f --force Force immediate halt/power-off/reboot\n"
4208 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 4209 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 4210 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4211 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 4212 program_invocation_short_name,
4213 arg_action == ACTION_REBOOT ? "Reboot" :
4214 arg_action == ACTION_POWEROFF ? "Power off" :
4215 "Halt");
4216
4217 return 0;
4218}
4219
4220static int shutdown_help(void) {
4221
08e4b1c5 4222 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
e4b61340
LP		 4223 "Shut down the system.\n\n"
4224 " --help Show this help\n"
4225 " -H --halt Halt the machine\n"
4226 " -P --poweroff Power-off the machine\n"
4227 " -r --reboot Reboot the machine\n"
4228 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433 4229 " -k Don't halt/power-off/reboot, just send warnings\n"
f6144808 4230 " --no-wall Don't send wall message before halt/power-off/reboot\n"
f6144808 4231 " -c Cancel a pending shutdown\n",
e4b61340
LP		 4232 program_invocation_short_name);
4233
4234 return 0;
4235}
4236
4237static int telinit_help(void) {
4238
2e33c433 4239 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 4240 "Send control commands to the init daemon.\n\n"
4241 " --help Show this help\n"
2e33c433 4242 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 4243 "Commands:\n"
4244 " 0 Power-off the machine\n"
4245 " 6 Reboot the machine\n"
514f4ef5
LP		 4246 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4247 " 1, s, S Enter rescue mode\n"
4248 " q, Q Reload init daemon configuration\n"
4249 " u, U Reexecute init daemon\n",
e4b61340
LP		 4250 program_invocation_short_name);
4251
4252 return 0;
4253}
4254
4255static int runlevel_help(void) {
4256
2e33c433 4257 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4258 "Prints the previous and current runlevel of the init system.\n\n"
4259 " --help Show this help\n",
4260 program_invocation_short_name);
4261
4262 return 0;
4263}
4264
4265static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 4266
4267 enum {
90d473a1 4268 ARG_FAIL = 0x100,
35df8f27 4269 ARG_VERSION,
af2d49f7 4270 ARG_USER,
7e4249b9 4271 ARG_SYSTEM,
ee5762e3 4272 ARG_GLOBAL,
6e905d93 4273 ARG_NO_BLOCK,
611efaac 4274 ARG_NO_PAGER,
4445a875
LP		 4275 ARG_NO_WALL,
4276 ARG_ORDER,
8fe914ec 4277 ARG_REQUIRE,
ee5762e3 4278 ARG_FULL,
ee5762e3 4279 ARG_NO_RELOAD,
8a0867d6
LP		 4280 ARG_DEFAULTS,
4281 ARG_KILL_MODE,
501fc174
LP		 4282 ARG_KILL_WHO,
4283 ARG_NO_ASK_PASSWORD
7e4249b9
LP		 4284 };
4285
4286 static const struct option options[] = {
ee5762e3 4287 { "help", no_argument, NULL, 'h' },
35df8f27 4288 { "version", no_argument, NULL, ARG_VERSION },
ee5762e3
LP		 4289 { "type", required_argument, NULL, 't' },
4290 { "property", required_argument, NULL, 'p' },
4291 { "all", no_argument, NULL, 'a' },
4292 { "full", no_argument, NULL, ARG_FULL },
4293 { "fail", no_argument, NULL, ARG_FAIL },
af2d49f7 4294 { "user", no_argument, NULL, ARG_USER },
ee5762e3
LP		 4295 { "system", no_argument, NULL, ARG_SYSTEM },
4296 { "global", no_argument, NULL, ARG_GLOBAL },
4297 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
0736af98 4298 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
ee5762e3
LP		 4299 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4300 { "quiet", no_argument, NULL, 'q' },
4301 { "order", no_argument, NULL, ARG_ORDER },
4302 { "require", no_argument, NULL, ARG_REQUIRE },
b4f27ccc 4303 { "force", no_argument, NULL, 'f' },
ee5762e3 4304 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
f1e36d67 4305 { "defaults", no_argument, NULL, ARG_DEFAULTS },
8a0867d6
LP		 4306 { "kill-mode", required_argument, NULL, ARG_KILL_MODE },
4307 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4308 { "signal", required_argument, NULL, 's' },
501fc174 4309 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
ee5762e3 4310 { NULL, 0, NULL, 0 }
7e4249b9
LP		 4311 };
4312
4313 int c;
4314
e4b61340 4315 assert(argc >= 0);
7e4249b9
LP		 4316 assert(argv);
4317
501fc174
LP		 4318 /* Only when running as systemctl we ask for passwords */
4319 arg_ask_password = true;
4320
8a0867d6 4321 while ((c = getopt_long(argc, argv, "ht:p:aqfs:", options, NULL)) >= 0) {
7e4249b9
LP		 4322
4323 switch (c) {
4324
4325 case 'h':
e4b61340 4326 systemctl_help();
7e4249b9 4327 return 0;
35df8f27
LP		 4328
4329 case ARG_VERSION:
4330 puts(PACKAGE_STRING);
7d568925
LP		 4331 puts(DISTRIBUTION);
4332 puts(SYSTEMD_FEATURES);
35df8f27 4333 return 0;
7e4249b9
LP		 4334
4335 case 't':
4336 arg_type = optarg;
4337 break;
4338
ea4a240d
LP		 4339 case 'p': {
4340 char **l;
4341
4342 if (!(l = strv_append(arg_property, optarg)))
4343 return -ENOMEM;
4344
4345 strv_free(arg_property);
4346 arg_property = l;
48220598
LP		 4347
4348 /* If the user asked for a particular
4349 * property, show it to him, even if it is
4350 * empty. */
4351 arg_all = true;
4352 break;
ea4a240d 4353 }
48220598 4354
7e4249b9
LP		 4355 case 'a':
4356 arg_all = true;
4357 break;
4358
90d473a1
LP		 4359 case ARG_FAIL:
4360 arg_fail = true;
7e4249b9
LP		 4361 break;
4362
af2d49f7
LP		 4363 case ARG_USER:
4364 arg_user = true;
7e4249b9
LP		 4365 break;
4366
4367 case ARG_SYSTEM:
af2d49f7 4368 arg_user = false;
7e4249b9
LP		 4369 break;
4370
6e905d93
LP		 4371 case ARG_NO_BLOCK:
4372 arg_no_block = true;
7e4249b9
LP		 4373 break;
4374
611efaac
LP		 4375 case ARG_NO_PAGER:
4376 arg_no_pager = true;
4377 break;
0736af98 4378
514f4ef5
LP		 4379 case ARG_NO_WALL:
4380 arg_no_wall = true;
4381 break;
4382
4445a875
LP		 4383 case ARG_ORDER:
4384 arg_dot = DOT_ORDER;
4385 break;
4386
4387 case ARG_REQUIRE:
4388 arg_dot = DOT_REQUIRE;
4389 break;
4390
8fe914ec
LP		 4391 case ARG_FULL:
4392 arg_full = true;
4393 break;
4394
0183528f
LP		 4395 case 'q':
4396 arg_quiet = true;
4397 break;
4398
b4f27ccc 4399 case 'f':
ee5762e3
LP		 4400 arg_force = true;
4401 break;
4402
4403 case ARG_NO_RELOAD:
4404 arg_no_reload = true;
4405 break;
4406
4407 case ARG_GLOBAL:
4408 arg_global = true;
af2d49f7 4409 arg_user = true;
ee5762e3
LP		 4410 break;
4411
4412 case ARG_DEFAULTS:
4413 arg_defaults = true;
4414 break;
4415
8a0867d6
LP		 4416 case ARG_KILL_WHO:
4417 arg_kill_who = optarg;
4418 break;
4419
4420 case ARG_KILL_MODE:
4421 arg_kill_mode = optarg;
4422 break;
4423
4424 case 's':
4425 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4426 log_error("Failed to parse signal string %s.", optarg);
4427 return -EINVAL;
4428 }
4429 break;
4430
501fc174
LP		 4431 case ARG_NO_ASK_PASSWORD:
4432 arg_ask_password = false;
4433 break;
4434
7e4249b9
LP		 4435 case '?':
4436 return -EINVAL;
4437
4438 default:
4439 log_error("Unknown option code %c", c);
4440 return -EINVAL;
4441 }
4442 }
4443
4444 return 1;
4445}
4446
e4b61340
LP		 4447static int halt_parse_argv(int argc, char *argv[]) {
4448
4449 enum {
4450 ARG_HELP = 0x100,
4451 ARG_HALT,
514f4ef5
LP		 4452 ARG_REBOOT,
4453 ARG_NO_WALL
e4b61340
LP		 4454 };
4455
4456 static const struct option options[] = {
4457 { "help", no_argument, NULL, ARG_HELP },
4458 { "halt", no_argument, NULL, ARG_HALT },
4459 { "poweroff", no_argument, NULL, 'p' },
4460 { "reboot", no_argument, NULL, ARG_REBOOT },
4461 { "force", no_argument, NULL, 'f' },
4462 { "wtmp-only", no_argument, NULL, 'w' },
4463 { "no-wtmp", no_argument, NULL, 'd' },
4464 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 4465 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4466 { NULL, 0, NULL, 0 }
4467 };
4468
4469 int c, runlevel;
4470
4471 assert(argc >= 0);
4472 assert(argv);
4473
4474 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4475 if (runlevel == '0' || runlevel == '6')
4476 arg_immediate = true;
4477
4478 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4479 switch (c) {
4480
4481 case ARG_HELP:
4482 halt_help();
4483 return 0;
4484
4485 case ARG_HALT:
4486 arg_action = ACTION_HALT;
4487 break;
4488
4489 case 'p':
a042efad
MS		 4490 if (arg_action != ACTION_REBOOT)
4491 arg_action = ACTION_POWEROFF;
e4b61340
LP		 4492 break;
4493
4494 case ARG_REBOOT:
4495 arg_action = ACTION_REBOOT;
4496 break;
4497
4498 case 'f':
4499 arg_immediate = true;
4500 break;
4501
4502 case 'w':
4503 arg_dry = true;
4504 break;
4505
4506 case 'd':
4507 arg_no_wtmp = true;
4508 break;
4509
4510 case 'n':
4511 arg_no_sync = true;
4512 break;
4513
514f4ef5
LP		 4514 case ARG_NO_WALL:
4515 arg_no_wall = true;
4516 break;
4517
e4b61340
LP		 4518 case 'i':
4519 case 'h':
4520 /* Compatibility nops */
4521 break;
4522
4523 case '?':
4524 return -EINVAL;
4525
4526 default:
4527 log_error("Unknown option code %c", c);
4528 return -EINVAL;
4529 }
4530 }
4531
4532 if (optind < argc) {
4533 log_error("Too many arguments.");
4534 return -EINVAL;
4535 }
4536
4537 return 1;
4538}
4539
f6144808
LP		 4540static int parse_time_spec(const char *t, usec_t *_u) {
4541 assert(t);
4542 assert(_u);
4543
4544 if (streq(t, "now"))
4545 *_u = 0;
4546 else if (t[0] == '+') {
4547 uint64_t u;
4548
4549 if (safe_atou64(t + 1, &u) < 0)
4550 return -EINVAL;
4551
4552 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4553 } else {
4554 char *e = NULL;
4555 long hour, minute;
4556 struct tm tm;
4557 time_t s;
4558 usec_t n;
4559
4560 errno = 0;
4561 hour = strtol(t, &e, 10);
4562 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4563 return -EINVAL;
4564
4565 minute = strtol(e+1, &e, 10);
4566 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4567 return -EINVAL;
4568
4569 n = now(CLOCK_REALTIME);
08e4b1c5
LP		 4570 s = (time_t) (n / USEC_PER_SEC);
4571
4572 zero(tm);
f6144808
LP		 4573 assert_se(localtime_r(&s, &tm));
4574
4575 tm.tm_hour = (int) hour;
4576 tm.tm_min = (int) minute;
08e4b1c5 4577 tm.tm_sec = 0;
f6144808
LP		 4578
4579 assert_se(s = mktime(&tm));
4580
4581 *_u = (usec_t) s * USEC_PER_SEC;
4582
4583 while (*_u <= n)
4584 *_u += USEC_PER_DAY;
4585 }
4586
4587 return 0;
4588}
4589
e4b61340
LP		 4590static int shutdown_parse_argv(int argc, char *argv[]) {
4591
4592 enum {
4593 ARG_HELP = 0x100,
514f4ef5 4594 ARG_NO_WALL
e4b61340
LP		 4595 };
4596
4597 static const struct option options[] = {
4598 { "help", no_argument, NULL, ARG_HELP },
4599 { "halt", no_argument, NULL, 'H' },
4600 { "poweroff", no_argument, NULL, 'P' },
4601 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4602 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4603 { NULL, 0, NULL, 0 }
4604 };
4605
f6144808 4606 int c, r;
e4b61340
LP		 4607
4608 assert(argc >= 0);
4609 assert(argv);
4610
f6144808 4611 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
e4b61340
LP		 4612 switch (c) {
4613
4614 case ARG_HELP:
4615 shutdown_help();
4616 return 0;
4617
4618 case 'H':
4619 arg_action = ACTION_HALT;
4620 break;
4621
4622 case 'P':
4623 arg_action = ACTION_POWEROFF;
4624 break;
4625
4626 case 'r':
4627 arg_action = ACTION_REBOOT;
4628 break;
4629
4630 case 'h':
4631 if (arg_action != ACTION_HALT)
4632 arg_action = ACTION_POWEROFF;
4633 break;
4634
4635 case 'k':
4636 arg_dry = true;
4637 break;
4638
514f4ef5
LP		 4639 case ARG_NO_WALL:
4640 arg_no_wall = true;
4641 break;
4642
e4b61340
LP		 4643 case 't':
4644 case 'a':
4645 /* Compatibility nops */
4646 break;
4647
f6144808
LP		 4648 case 'c':
4649 arg_action = ACTION_CANCEL_SHUTDOWN;
4650 break;
4651
e4b61340
LP		 4652 case '?':
4653 return -EINVAL;
4654
4655 default:
4656 log_error("Unknown option code %c", c);
4657 return -EINVAL;
4658 }
4659 }
4660
6b5ad000 4661 if (argc > optind) {
f6144808
LP		 4662 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4663 log_error("Failed to parse time specification: %s", argv[optind]);
4664 return r;
4665 }
6b5ad000 4666 } else
08e4b1c5 4667 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
442b9094 4668
f6144808 4669 /* We skip the time argument */
e4b61340
LP		 4670 if (argc > optind + 1)
4671 arg_wall = argv + optind + 1;
4672
4673 optind = argc;
4674
4675 return 1;
e4b61340
LP		 4676}
4677
4678static int telinit_parse_argv(int argc, char *argv[]) {
4679
4680 enum {
4681 ARG_HELP = 0x100,
514f4ef5 4682 ARG_NO_WALL
e4b61340
LP		 4683 };
4684
4685 static const struct option options[] = {
4686 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4687 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4688 { NULL, 0, NULL, 0 }
4689 };
4690
4691 static const struct {
4692 char from;
4693 enum action to;
4694 } table[] = {
4695 { '0', ACTION_POWEROFF },
4696 { '6', ACTION_REBOOT },
ef2f1067 4697 { '1', ACTION_RESCUE },
e4b61340
LP		 4698 { '2', ACTION_RUNLEVEL2 },
4699 { '3', ACTION_RUNLEVEL3 },
4700 { '4', ACTION_RUNLEVEL4 },
4701 { '5', ACTION_RUNLEVEL5 },
4702 { 's', ACTION_RESCUE },
4703 { 'S', ACTION_RESCUE },
4704 { 'q', ACTION_RELOAD },
4705 { 'Q', ACTION_RELOAD },
4706 { 'u', ACTION_REEXEC },
4707 { 'U', ACTION_REEXEC }
4708 };
4709
4710 unsigned i;
4711 int c;
4712
4713 assert(argc >= 0);
4714 assert(argv);
4715
4716 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4717 switch (c) {
4718
4719 case ARG_HELP:
4720 telinit_help();
4721 return 0;
4722
514f4ef5
LP		 4723 case ARG_NO_WALL:
4724 arg_no_wall = true;
4725 break;
4726
e4b61340
LP		 4727 case '?':
4728 return -EINVAL;
4729
4730 default:
4731 log_error("Unknown option code %c", c);
4732 return -EINVAL;
4733 }
4734 }
4735
4736 if (optind >= argc) {
2f02ce40 4737 telinit_help();
e4b61340
LP		 4738 return -EINVAL;
4739 }
4740
4741 if (optind + 1 < argc) {
4742 log_error("Too many arguments.");
4743 return -EINVAL;
4744 }
4745
4746 if (strlen(argv[optind]) != 1) {
4747 log_error("Expected single character argument.");
4748 return -EINVAL;
4749 }
4750
4751 for (i = 0; i < ELEMENTSOF(table); i++)
4752 if (table[i].from == argv[optind][0])
4753 break;
4754
4755 if (i >= ELEMENTSOF(table)) {
4756 log_error("Unknown command %s.", argv[optind]);
4757 return -EINVAL;
4758 }
4759
4760 arg_action = table[i].to;
4761
4762 optind ++;
4763
4764 return 1;
4765}
4766
4767static int runlevel_parse_argv(int argc, char *argv[]) {
4768
4769 enum {
4770 ARG_HELP = 0x100,
4771 };
4772
4773 static const struct option options[] = {
4774 { "help", no_argument, NULL, ARG_HELP },
4775 { NULL, 0, NULL, 0 }
4776 };
4777
4778 int c;
4779
4780 assert(argc >= 0);
4781 assert(argv);
4782
4783 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4784 switch (c) {
4785
4786 case ARG_HELP:
4787 runlevel_help();
4788 return 0;
4789
4790 case '?':
4791 return -EINVAL;
4792
4793 default:
4794 log_error("Unknown option code %c", c);
4795 return -EINVAL;
4796 }
4797 }
4798
4799 if (optind < argc) {
4800 log_error("Too many arguments.");
4801 return -EINVAL;
4802 }
4803
4804 return 1;
4805}
4806
4807static int parse_argv(int argc, char *argv[]) {
4808 assert(argc >= 0);
4809 assert(argv);
4810
4811 if (program_invocation_short_name) {
4812
4813 if (strstr(program_invocation_short_name, "halt")) {
4814 arg_action = ACTION_HALT;
4815 return halt_parse_argv(argc, argv);
4816 } else if (strstr(program_invocation_short_name, "poweroff")) {
4817 arg_action = ACTION_POWEROFF;
4818 return halt_parse_argv(argc, argv);
4819 } else if (strstr(program_invocation_short_name, "reboot")) {
4820 arg_action = ACTION_REBOOT;
4821 return halt_parse_argv(argc, argv);
4822 } else if (strstr(program_invocation_short_name, "shutdown")) {
4823 arg_action = ACTION_POWEROFF;
4824 return shutdown_parse_argv(argc, argv);
4825 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4826
4827 if (sd_booted() > 0) {
4828 arg_action = ACTION_INVALID;
4829 return telinit_parse_argv(argc, argv);
4830 } else {
4831 /* Hmm, so some other init system is
4832 * running, we need to forward this
4833 * request to it. For now we simply
4834 * guess that it is Upstart. */
4835
4836 execv("/lib/upstart/telinit", argv);
4837
4838 log_error("Couldn't find an alternative telinit implementation to spawn.");
4839 return -EIO;
4840 }
4841
e4b61340
LP		 4842 } else if (strstr(program_invocation_short_name, "runlevel")) {
4843 arg_action = ACTION_RUNLEVEL;
4844 return runlevel_parse_argv(argc, argv);
4845 }
4846 }
4847
4848 arg_action = ACTION_SYSTEMCTL;
4849 return systemctl_parse_argv(argc, argv);
4850}
4851
d55ae9e6 4852static int action_to_runlevel(void) {
eb22ac37
LP		 4853
4854 static const char table[_ACTION_MAX] = {
4855 [ACTION_HALT] = '0',
4856 [ACTION_POWEROFF] = '0',
4857 [ACTION_REBOOT] = '6',
4858 [ACTION_RUNLEVEL2] = '2',
4859 [ACTION_RUNLEVEL3] = '3',
4860 [ACTION_RUNLEVEL4] = '4',
4861 [ACTION_RUNLEVEL5] = '5',
4862 [ACTION_RESCUE] = '1'
4863 };
4864
d55ae9e6
LP		 4865 assert(arg_action < _ACTION_MAX);
4866
4867 return table[arg_action];
4868}
4869
f1c5860b 4870static int talk_upstart(void) {
d55ae9e6
LP		 4871 DBusMessage *m = NULL, *reply = NULL;
4872 DBusError error;
4873 int previous, rl, r;
4874 char
4875 env1_buf[] = "RUNLEVEL=X",
4876 env2_buf[] = "PREVLEVEL=X";
4877 char *env1 = env1_buf, *env2 = env2_buf;
4878 const char *emit = "runlevel";
4879 dbus_bool_t b_false = FALSE;
4880 DBusMessageIter iter, sub;
f1c5860b 4881 DBusConnection *bus;
d55ae9e6
LP		 4882
4883 dbus_error_init(&error);
4884
4885 if (!(rl = action_to_runlevel()))
4886 return 0;
4887
4888 if (utmp_get_runlevel(&previous, NULL) < 0)
4889 previous = 'N';
4890
b574246b 4891 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4892 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4893 r = 0;
4894 goto finish;
4895 }
4896
4cf5d675 4897 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
f1c5860b
LP		 4898 r = -EIO;
4899 goto finish;
4900 }
4901
4902 if ((r = bus_check_peercred(bus)) < 0) {
4903 log_error("Failed to verify owner of bus.");
4904 goto finish;
4905 }
4906
d55ae9e6
LP		 4907 if (!(m = dbus_message_new_method_call(
4908 "com.ubuntu.Upstart",
4909 "/com/ubuntu/Upstart",
4910 "com.ubuntu.Upstart0_6",
4911 "EmitEvent"))) {
4912
4913 log_error("Could not allocate message.");
f1c5860b
LP		 4914 r = -ENOMEM;
4915 goto finish;
d55ae9e6
LP		 4916 }
4917
4918 dbus_message_iter_init_append(m, &iter);
4919
4920 env1_buf[sizeof(env1_buf)-2] = rl;
4921 env2_buf[sizeof(env2_buf)-2] = previous;
4922
4923 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4924 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4925 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4926 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4927 !dbus_message_iter_close_container(&iter, &sub) ||
4928 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4929 log_error("Could not append arguments to message.");
4930 r = -ENOMEM;
4931 goto finish;
4932 }
4933
4934 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4935
4936 if (error_is_no_service(&error)) {
aabd9b11 4937 r = -EADDRNOTAVAIL;
d55ae9e6
LP		 4938 goto finish;
4939 }
4940
4cf5d675 4941 log_error("Failed to issue method call: %s", bus_error_message(&error));
d55ae9e6
LP		 4942 r = -EIO;
4943 goto finish;
4944 }
4945
aabd9b11 4946 r = 0;
d55ae9e6
LP		 4947
4948finish:
4949 if (m)
4950 dbus_message_unref(m);
4951
4952 if (reply)
4953 dbus_message_unref(reply);
4954
b574246b 4955 if (bus) {
5d452f9c 4956 dbus_connection_flush(bus);
b574246b 4957 dbus_connection_close(bus);
f1c5860b 4958 dbus_connection_unref(bus);
b574246b 4959 }
f1c5860b 4960
d55ae9e6
LP		 4961 dbus_error_free(&error);
4962
4963 return r;
4964}
4965
4966static int talk_initctl(void) {
eb22ac37
LP		 4967 struct init_request request;
4968 int r, fd;
d55ae9e6 4969 char rl;
eb22ac37 4970
d55ae9e6 4971 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4972 return 0;
4973
4974 zero(request);
4975 request.magic = INIT_MAGIC;
4976 request.sleeptime = 0;
4977 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4978 request.runlevel = rl;
4979
4980 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4981
4982 if (errno == ENOENT)
4983 return 0;
eb22ac37 4984
d55ae9e6 4985 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4986 return -errno;
d55ae9e6 4987 }
eb22ac37 4988
d55ae9e6 4989 errno = 0;
eb22ac37
LP		 4990 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4991 close_nointr_nofail(fd);
4992
d55ae9e6
LP		 4993 if (r < 0) {
4994 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 4995 return errno ? -errno : -EIO;
d55ae9e6 4996 }
eb22ac37
LP		 4997
4998 return 1;
e4b61340
LP		 4999}
5000
ee5762e3 5001static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 5002
7e4249b9
LP		 5003 static const struct {
5004 const char* verb;
5005 const enum {
5006 MORE,
5007 LESS,
5008 EQUAL
5009 } argc_cmp;
5010 const int argc;
5011 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
5012 } verbs[] = {
ee5762e3
LP		 5013 { "list-units", LESS, 1, list_units },
5014 { "list-jobs", EQUAL, 1, list_jobs },
5015 { "clear-jobs", EQUAL, 1, daemon_reload },
5016 { "load", MORE, 2, load_unit },
5017 { "cancel", MORE, 2, cancel_job },
5018 { "start", MORE, 2, start_unit },
5019 { "stop", MORE, 2, start_unit },
5020 { "reload", MORE, 2, start_unit },
5021 { "restart", MORE, 2, start_unit },
5022 { "try-restart", MORE, 2, start_unit },
5023 { "reload-or-restart", MORE, 2, start_unit },
5024 { "reload-or-try-restart", MORE, 2, start_unit },
5025 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5026 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5027 { "isolate", EQUAL, 2, start_unit },
8a0867d6 5028 { "kill", MORE, 2, kill_unit },
ee5762e3
LP		 5029 { "is-active", MORE, 2, check_unit },
5030 { "check", MORE, 2, check_unit },
5031 { "show", MORE, 1, show },
5032 { "status", MORE, 2, show },
5033 { "monitor", EQUAL, 1, monitor },
5034 { "dump", EQUAL, 1, dump },
5035 { "dot", EQUAL, 1, dot },
5036 { "snapshot", LESS, 2, snapshot },
5037 { "delete", MORE, 2, delete_snapshot },
5038 { "daemon-reload", EQUAL, 1, daemon_reload },
5039 { "daemon-reexec", EQUAL, 1, daemon_reload },
ee5762e3
LP		 5040 { "show-environment", EQUAL, 1, show_enviroment },
5041 { "set-environment", MORE, 2, set_environment },
5042 { "unset-environment", MORE, 2, set_environment },
5043 { "halt", EQUAL, 1, start_special },
5044 { "poweroff", EQUAL, 1, start_special },
5045 { "reboot", EQUAL, 1, start_special },
20b09ca7 5046 { "kexec", EQUAL, 1, start_special },
ee5762e3
LP		 5047 { "default", EQUAL, 1, start_special },
5048 { "rescue", EQUAL, 1, start_special },
5049 { "emergency", EQUAL, 1, start_special },
20b09ca7 5050 { "exit", EQUAL, 1, start_special },
fdf20a31 5051 { "reset-failed", MORE, 1, reset_failed },
ee5762e3
LP		 5052 { "enable", MORE, 2, enable_unit },
5053 { "disable", MORE, 2, enable_unit },
5054 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 5055 };
5056
e4b61340 5057 int left;
7e4249b9 5058 unsigned i;
7e4249b9 5059
e4b61340
LP		 5060 assert(argc >= 0);
5061 assert(argv);
ee5762e3 5062 assert(error);
7e4249b9
LP		 5063
5064 left = argc - optind;
5065
5066 if (left <= 0)
5067 /* Special rule: no arguments means "list-units" */
5068 i = 0;
5069 else {
0183528f
LP		 5070 if (streq(argv[optind], "help")) {
5071 systemctl_help();
5072 return 0;
5073 }
5074
7e4249b9
LP		 5075 for (i = 0; i < ELEMENTSOF(verbs); i++)
5076 if (streq(argv[optind], verbs[i].verb))
5077 break;
5078
5079 if (i >= ELEMENTSOF(verbs)) {
5080 log_error("Unknown operation %s", argv[optind]);
e4b61340 5081 return -EINVAL;
7e4249b9
LP		 5082 }
5083 }
5084
5085 switch (verbs[i].argc_cmp) {
5086
5087 case EQUAL:
5088 if (left != verbs[i].argc) {
5089 log_error("Invalid number of arguments.");
e4b61340 5090 return -EINVAL;
7e4249b9
LP		 5091 }
5092
5093 break;
5094
5095 case MORE:
5096 if (left < verbs[i].argc) {
5097 log_error("Too few arguments.");
e4b61340 5098 return -EINVAL;
7e4249b9
LP		 5099 }
5100
5101 break;
5102
5103 case LESS:
5104 if (left > verbs[i].argc) {
5105 log_error("Too many arguments.");
e4b61340 5106 return -EINVAL;
7e4249b9
LP		 5107 }
5108
5109 break;
5110
5111 default:
5112 assert_not_reached("Unknown comparison operator.");
5113 }
5114
ee5762e3
LP		 5115 /* Require a bus connection for all operations but
5116 * enable/disable */
5117 if (!streq(verbs[i].verb, "enable") &&
5118 !streq(verbs[i].verb, "disable") &&
5119 !bus) {
5120 log_error("Failed to get D-Bus connection: %s", error->message);
5121 return -EIO;
5122 }
5123
e4b61340
LP		 5124 return verbs[i].dispatch(bus, argv + optind, left);
5125}
5126
9be9828c 5127static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
f6144808
LP		 5128 int fd = -1;
5129 struct msghdr msghdr;
5130 struct iovec iovec;
5131 union sockaddr_union sockaddr;
f6144808
LP		 5132 struct shutdownd_command c;
5133
5134 zero(c);
5135 c.elapse = t;
5136 c.mode = mode;
9be9828c
LP		 5137 c.warn_wall = warn;
5138
5139 if (message)
5140 strncpy(c.wall_message, message, sizeof(c.wall_message));
f6144808
LP		 5141
5142 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5143 return -errno;
5144
5145 zero(sockaddr);
5146 sockaddr.sa.sa_family = AF_UNIX;
5147 sockaddr.un.sun_path[0] = 0;
5148 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
5149
5150 zero(iovec);
5151 iovec.iov_base = (char*) &c;
5152 iovec.iov_len = sizeof(c);
5153
f6144808
LP		 5154 zero(msghdr);
5155 msghdr.msg_name = &sockaddr;
0e098b15 5156 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
f6144808
LP		 5157
5158 msghdr.msg_iov = &iovec;
5159 msghdr.msg_iovlen = 1;
f6144808
LP		 5160
5161 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5162 close_nointr_nofail(fd);
5163 return -errno;
5164 }
5165
5166 close_nointr_nofail(fd);
5167 return 0;
5168}
5169
e4b61340 5170static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5171
5172 if (bus) {
5173 /* First, try systemd via D-Bus. */
e364ad06 5174 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 5175 return 0;
5176 }
5177
5178 /* Nothing else worked, so let's try signals */
5179 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5180
5181 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5182 log_error("kill() failed: %m");
5183 return -errno;
5184 }
5185
5186 return 0;
5187}
5188
5189static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5190
5191 if (bus) {
5192 /* First, try systemd via D-Bus. */
706900b7 5193 if (start_unit(bus, NULL, 0) >= 0)
983d9c90 5194 goto done;
e4b61340
LP		 5195 }
5196
ec7f7f20
LP		 5197 /* Hmm, talking to systemd via D-Bus didn't work. Then
5198 * let's try to talk to Upstart via D-Bus. */
e364ad06 5199 if (talk_upstart() > 0)
ec7f7f20
LP		 5200 goto done;
5201
e4b61340
LP		 5202 /* Nothing else worked, so let's try
5203 * /dev/initctl */
fbc43921 5204 if (talk_initctl() > 0)
983d9c90 5205 goto done;
d55ae9e6
LP		 5206
5207 log_error("Failed to talk to init daemon.");
5208 return -EIO;
983d9c90
LP		 5209
5210done:
5211 warn_wall(arg_action);
5212 return 0;
e4b61340
LP		 5213}
5214
5215static int halt_main(DBusConnection *bus) {
5216 int r;
5217
bc8c2f5c 5218 if (geteuid() != 0) {
cc8a7a61 5219 log_error("Must be root.");
bc8c2f5c
LP		 5220 return -EPERM;
5221 }
5222
f6144808 5223 if (arg_when > 0) {
9be9828c 5224 char *m;
08e4b1c5 5225 char date[FORMAT_TIMESTAMP_MAX];
9be9828c
LP		 5226
5227 m = strv_join(arg_wall, " ");
5228 r = send_shutdownd(arg_when,
5229 arg_action == ACTION_HALT ? 'H' :
5230 arg_action == ACTION_POWEROFF ? 'P' :
5231 'r',
5232 !arg_no_wall,
5233 m);
5234 free(m);
5235
5236 if (r < 0)
f6144808 5237 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
08e4b1c5
LP		 5238 else {
5239 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5240 format_timestamp(date, sizeof(date), arg_when));
f6144808 5241 return 0;
08e4b1c5 5242 }
f6144808
LP		 5243 }
5244
d47b555b 5245 if (!arg_dry && !arg_immediate)
e4b61340
LP		 5246 return start_with_fallback(bus);
5247
d90e1a30
LP		 5248 if (!arg_no_wtmp) {
5249 if (sd_booted() > 0)
5250 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5251 else if ((r = utmp_put_shutdown(0)) < 0)
e4b61340 5252 log_warning("Failed to write utmp record: %s", strerror(-r));
d90e1a30 5253 }
e4b61340
LP		 5254
5255 if (!arg_no_sync)
5256 sync();
5257
5258 if (arg_dry)
5259 return 0;
5260
5261 /* Make sure C-A-D is handled by the kernel from this
5262 * point on... */
5263 reboot(RB_ENABLE_CAD);
5264
5265 switch (arg_action) {
5266
5267 case ACTION_HALT:
3059b1c1 5268 log_info("Halting.");
e4b61340
LP		 5269 reboot(RB_HALT_SYSTEM);
5270 break;
5271
5272 case ACTION_POWEROFF:
3059b1c1 5273 log_info("Powering off.");
e4b61340
LP		 5274 reboot(RB_POWER_OFF);
5275 break;
5276
5277 case ACTION_REBOOT:
3059b1c1 5278 log_info("Rebooting.");
e4b61340
LP		 5279 reboot(RB_AUTOBOOT);
5280 break;
5281
5282 default:
5283 assert_not_reached("Unknown halt action.");
5284 }
5285
5286 /* We should never reach this. */
5287 return -ENOSYS;
5288}
5289
5290static int runlevel_main(void) {
5291 int r, runlevel, previous;
5292
5293 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 5294 printf("unknown\n");
e4b61340
LP		 5295 return r;
5296 }
5297
5298 printf("%c %c\n",
5299 previous <= 0 ? 'N' : previous,
5300 runlevel <= 0 ? 'N' : runlevel);
5301
5302 return 0;
5303}
5304
0736af98 5305static void pager_open(void) {
611efaac
LP		 5306 int fd[2];
5307 const char *pager;
5308
1888c907
LP		 5309 if (pager_pid > 0)
5310 return;
5311
611efaac
LP		 5312 if (!on_tty() || arg_no_pager)
5313 return;
5314
5315 if ((pager = getenv("PAGER")))
5316 if (!*pager || streq(pager, "cat"))
5317 return;
5318
4bc5f808
LP		 5319 /* Determine and cache number of columns before we spawn the
5320 * pager so that we get the value from the actual tty */
5321 columns();
5322
611efaac
LP		 5323 if (pipe(fd) < 0) {
5324 log_error("Failed to create pager pipe: %m");
5325 return;
5326 }
5327
1888c907
LP		 5328 pager_pid = fork();
5329 if (pager_pid < 0) {
611efaac
LP		 5330 log_error("Failed to fork pager: %m");
5331 close_pipe(fd);
5332 return;
5333 }
5334
1888c907
LP		 5335 /* In the child start the pager */
5336 if (pager_pid == 0) {
611efaac
LP		 5337
5338 dup2(fd[0], STDIN_FILENO);
5339 close_pipe(fd);
5340
4c00bf25 5341 setenv("LESS", "FRSX", 0);
611efaac 5342
1888c907
LP		 5343 prctl(PR_SET_PDEATHSIG, SIGTERM);
5344
611efaac
LP		 5345 if (pager) {
5346 execlp(pager, pager, NULL);
5347 execl("/bin/sh", "sh", "-c", pager, NULL);
5348 } else {
75d12d57
LP		 5349 /* Debian's alternatives command for pagers is
5350 * called 'pager'. Note that we do not call
5351 * sensible-pagers here, since that is just a
5352 * shell script that implements a logic that
5353 * is similar to this one anyway, but is
5354 * Debian-specific. */
5355 execlp("pager", "pager", NULL);
5356
611efaac
LP		 5357 execlp("less", "less", NULL);
5358 execlp("more", "more", NULL);
5359 }
5360
5361 log_error("Unable to execute pager: %m");
5362 _exit(EXIT_FAILURE);
5363 }
5364
1888c907 5365 /* Return in the parent */
611efaac
LP		 5366 if (dup2(fd[1], STDOUT_FILENO) < 0)
5367 log_error("Failed to duplicate pager pipe: %m");
5368
5369 close_pipe(fd);
0736af98
MV		 5370}
5371
1888c907
LP		 5372static void pager_close(void) {
5373 siginfo_t dummy;
5374
5375 if (pager_pid <= 0)
5376 return;
5377
5378 /* Inform pager that we are done */
5379 fclose(stdout);
5380 wait_for_terminate(pager_pid, &dummy);
5381 pager_pid = 0;
5382}
5383
e4b61340 5384int main(int argc, char*argv[]) {
22f4096c 5385 int r, retval = EXIT_FAILURE;
e4b61340
LP		 5386 DBusConnection *bus = NULL;
5387 DBusError error;
5388
5389 dbus_error_init(&error);
5390
5391 log_parse_environment();
2396fb04 5392 log_open();
e4b61340
LP		 5393
5394 if ((r = parse_argv(argc, argv)) < 0)
5395 goto finish;
5396 else if (r == 0) {
22f4096c 5397 retval = EXIT_SUCCESS;
7e4249b9
LP		 5398 goto finish;
5399 }
5400
e4b61340
LP		 5401 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5402 * let's shortcut this */
5403 if (arg_action == ACTION_RUNLEVEL) {
22f4096c
LP		 5404 r = runlevel_main();
5405 retval = r < 0 ? EXIT_FAILURE : r;
e4b61340
LP		 5406 goto finish;
5407 }
5408
af2d49f7 5409 bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 5410
5411 switch (arg_action) {
5412
22f4096c
LP		 5413 case ACTION_SYSTEMCTL:
5414 r = systemctl_main(bus, argc, argv, &error);
e4b61340 5415 break;
e4b61340
LP		 5416
5417 case ACTION_HALT:
5418 case ACTION_POWEROFF:
5419 case ACTION_REBOOT:
22f4096c 5420 r = halt_main(bus);
e4b61340
LP		 5421 break;
5422
e4b61340
LP		 5423 case ACTION_RUNLEVEL2:
5424 case ACTION_RUNLEVEL3:
5425 case ACTION_RUNLEVEL4:
5426 case ACTION_RUNLEVEL5:
5427 case ACTION_RESCUE:
514f4ef5 5428 case ACTION_EMERGENCY:
eb22ac37 5429 case ACTION_DEFAULT:
22f4096c 5430 r = start_with_fallback(bus);
e4b61340 5431 break;
7e4249b9 5432
e4b61340
LP		 5433 case ACTION_RELOAD:
5434 case ACTION_REEXEC:
22f4096c 5435 r = reload_with_fallback(bus);
e4b61340
LP		 5436 break;
5437
f6144808 5438 case ACTION_CANCEL_SHUTDOWN:
22f4096c 5439 r = send_shutdownd(0, 0, false, NULL);
f6144808
LP		 5440 break;
5441
eb22ac37
LP		 5442 case ACTION_INVALID:
5443 case ACTION_RUNLEVEL:
e4b61340
LP		 5444 default:
5445 assert_not_reached("Unknown action");
5446 }
7e4249b9 5447
22f4096c
LP		 5448 retval = r < 0 ? EXIT_FAILURE : r;
5449
7e4249b9
LP		 5450finish:
5451
b574246b 5452 if (bus) {
5d452f9c 5453 dbus_connection_flush(bus);
b574246b 5454 dbus_connection_close(bus);
7e4249b9 5455 dbus_connection_unref(bus);
b574246b 5456 }
7e4249b9 5457
e4b61340
LP		 5458 dbus_error_free(&error);
5459
7e4249b9
LP		 5460 dbus_shutdown();
5461
ea4a240d
LP		 5462 strv_free(arg_property);
5463
1888c907
LP		 5464 pager_close();
5465
7e4249b9
LP		 5466 return retval;
5467}
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