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shutdown: reword a few messages a little
[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;
7e4249b9 64static bool arg_session = false;
ee5762e3 65static bool arg_global = false;
e4b61340 66static bool arg_immediate = false;
ee5762e3 67static bool arg_no_block = false;
e4b61340
LP		 68static bool arg_no_wtmp = false;
69static bool arg_no_sync = false;
514f4ef5 70static bool arg_no_wall = false;
ee5762e3 71static bool arg_no_reload = false;
e4b61340 72static bool arg_dry = false;
0183528f 73static bool arg_quiet = false;
ee5762e3
LP		 74static bool arg_full = false;
75static bool arg_force = false;
76static bool arg_defaults = false;
501fc174 77static bool arg_ask_password = false;
e4b61340 78static char **arg_wall = NULL;
8a0867d6
LP		 79static const char *arg_kill_who = NULL;
80static const char *arg_kill_mode = NULL;
81static int arg_signal = SIGTERM;
f6144808 82static usec_t arg_when = 0;
4445a875 83static enum action {
e4b61340
LP		 84 ACTION_INVALID,
85 ACTION_SYSTEMCTL,
86 ACTION_HALT,
87 ACTION_POWEROFF,
88 ACTION_REBOOT,
20b09ca7
LP		 89 ACTION_KEXEC,
90 ACTION_EXIT,
e4b61340
LP		 91 ACTION_RUNLEVEL2,
92 ACTION_RUNLEVEL3,
93 ACTION_RUNLEVEL4,
94 ACTION_RUNLEVEL5,
95 ACTION_RESCUE,
514f4ef5
LP		 96 ACTION_EMERGENCY,
97 ACTION_DEFAULT,
e4b61340
LP		 98 ACTION_RELOAD,
99 ACTION_REEXEC,
100 ACTION_RUNLEVEL,
f6144808 101 ACTION_CANCEL_SHUTDOWN,
e4b61340
LP		 102 _ACTION_MAX
103} arg_action = ACTION_SYSTEMCTL;
4445a875
LP		 104static enum dot {
105 DOT_ALL,
106 DOT_ORDER,
107 DOT_REQUIRE
108} arg_dot = DOT_ALL;
e4b61340 109
f4579ce7
LP		 110static bool private_bus = false;
111
ee5762e3
LP		 112static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
113
2ee68f72 114static bool on_tty(void) {
2cc59dbf
LP		 115 static int t = -1;
116
117 if (_unlikely_(t < 0))
118 t = isatty(STDOUT_FILENO) > 0;
119
2ee68f72
LP		 120 return t;
121}
122
501fc174
LP		 123static void spawn_ask_password_agent(void) {
124 pid_t parent, child;
125
126 /* We check STDIN here, not STDOUT, since this is about input,
127 * not output */
128 if (!isatty(STDIN_FILENO))
129 return;
130
131 if (!arg_ask_password)
132 return;
133
134 parent = getpid();
135
136 /* Spawns a temporary TTY agent, making sure it goes away when
137 * we go away */
138
139 if ((child = fork()) < 0)
140 return;
141
142 if (child == 0) {
143 /* In the child */
144
145 const char * const args[] = {
146 SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH,
147 "--watch",
148 NULL
149 };
150
151 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
152 _exit(EXIT_FAILURE);
153
154 /* Check whether our parent died before we were able
155 * to set the death signal */
156 if (getppid() != parent)
157 _exit(EXIT_SUCCESS);
158
159 execv(args[0], (char **) args);
160 _exit(EXIT_FAILURE);
161 }
162}
163
2ee68f72
LP		 164static const char *ansi_highlight(bool b) {
165
166 if (!on_tty())
2cc59dbf
LP		 167 return "";
168
169 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
170}
171
2ee68f72
LP		 172static const char *ansi_highlight_green(bool b) {
173
174 if (!on_tty())
175 return "";
176
177 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
178}
179
f73e33d9 180static bool error_is_no_service(const DBusError *error) {
514f4ef5
LP		 181 assert(error);
182
e4b61340
LP		 183 if (!dbus_error_is_set(error))
184 return false;
185
186 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
187 return true;
188
189 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
190 return true;
191
192 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
193}
7e4249b9 194
22f4096c
LP		 195static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
196 assert(error);
197
198 if (!dbus_error_is_set(error))
199 return r;
200
201 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
202 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
203 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
204 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
205 return EXIT_NOPERMISSION;
206
207 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
208 return EXIT_NOTINSTALLED;
209
210 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
211 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
212 return EXIT_NOTIMPLEMENTED;
213
214 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
215 return EXIT_NOTCONFIGURED;
216
217 if (r != 0)
218 return r;
219
220 return EXIT_FAILURE;
221}
222
7e4249b9
LP		 223static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
224
514f4ef5
LP		 225 assert(iter);
226 assert(data);
227
7e4249b9
LP		 228 if (dbus_message_iter_get_arg_type(iter) != type)
229 return -EIO;
230
231 dbus_message_iter_get_basic(iter, data);
232
233 if (!dbus_message_iter_next(iter) != !next)
234 return -EIO;
235
236 return 0;
237}
238
514f4ef5 239static void warn_wall(enum action action) {
ef2f1067 240 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 241 [ACTION_HALT] = "The system is going down for system halt NOW!",
242 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
243 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
20b09ca7 244 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
514f4ef5
LP		 245 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
246 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 247 };
248
514f4ef5
LP		 249 if (arg_no_wall)
250 return;
251
e4a9373f
LP		 252 if (arg_wall) {
253 char *p;
254
255 if (!(p = strv_join(arg_wall, " "))) {
256 log_error("Failed to join strings.");
257 return;
258 }
259
260 if (*p) {
261 utmp_wall(p);
262 free(p);
263 return;
264 }
265
266 free(p);
267 }
268
514f4ef5 269 if (!table[action])
ef2f1067
LP		 270 return;
271
514f4ef5 272 utmp_wall(table[action]);
ef2f1067
LP		 273}
274
36c32ba2
LP		 275struct unit_info {
276 const char *id;
277 const char *description;
278 const char *load_state;
279 const char *active_state;
280 const char *sub_state;
281 const char *following;
282 const char *unit_path;
283 uint32_t job_id;
284 const char *job_type;
285 const char *job_path;
286};
287
288static int compare_unit_info(const void *a, const void *b) {
289 const char *d1, *d2;
290 const struct unit_info *u = a, *v = b;
291
292 d1 = strrchr(u->id, '.');
293 d2 = strrchr(v->id, '.');
294
295 if (d1 && d2) {
296 int r;
297
a2a3a5b9 298 if ((r = strcasecmp(d1, d2)) != 0)
36c32ba2
LP		 299 return r;
300 }
301
a2a3a5b9 302 return strcasecmp(u->id, v->id);
36c32ba2
LP		 303}
304
33330222
ZJS		 305static bool output_show_job(const struct unit_info *u) {
306 const char *dot;
b036fc00 307
33330222
ZJS		 308 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
309 streq(dot+1, arg_type))) &&
310 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
311}
312
eb68c413 313static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
688c6725 314 unsigned active_len, sub_len, job_len, n_shown = 0;
b036fc00 315 const struct unit_info *u;
33330222 316
b036fc00
LP		 317 active_len = sizeof("ACTIVE")-1;
318 sub_len = sizeof("SUB")-1;
319 job_len = sizeof("JOB")-1;
320
321 for (u = unit_infos; u < unit_infos + c; u++) {
322 if (!output_show_job(u))
323 continue;
324
325 active_len = MAX(active_len, strlen(u->active_state));
326 sub_len = MAX(sub_len, strlen(u->sub_state));
327 if (u->job_id != 0)
328 job_len = MAX(job_len, strlen(u->job_type));
33330222
ZJS		 329 }
330
eb68c413 331 if (on_tty()) {
33330222
ZJS		 332 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
333 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
eb68c413 334 if (columns() >= 80+12 || arg_full)
33330222 335 printf(" %s\n", "DESCRIPTION");
eb68c413 336 else
33330222 337 printf("\n");
eb68c413
ZJS		 338 }
339
b036fc00
LP		 340 for (u = unit_infos; u < unit_infos + c; u++) {
341 char *e;
342 int a = 0, b = 0;
343 const char *on_loaded, *off_loaded;
344 const char *on_active, *off_active;
345
346 if (!output_show_job(u))
347 continue;
348
688c6725
LP		 349 n_shown++;
350
00dc5d76
LP		 351 if (!streq(u->load_state, "loaded") &&
352 !streq(u->load_state, "banned")) {
b036fc00
LP		 353 on_loaded = ansi_highlight(true);
354 off_loaded = ansi_highlight(false);
355 } else
356 on_loaded = off_loaded = "";
357
358 if (streq(u->active_state, "failed")) {
359 on_active = ansi_highlight(true);
360 off_active = ansi_highlight(false);
361 } else
362 on_active = off_active = "";
eb68c413 363
b036fc00 364 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
eb68c413 365
b036fc00
LP		 366 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
367 e ? e : u->id,
368 on_loaded, u->load_state, off_loaded,
369 on_active, active_len, u->active_state,
370 sub_len, u->sub_state, off_active,
371 &a);
eb68c413 372
b036fc00
LP		 373 free(e);
374
375 a -= strlen(on_loaded) + strlen(off_loaded);
376 a -= strlen(on_active) + strlen(off_active);
377
378 if (u->job_id != 0)
379 printf(" %-*s", job_len, u->job_type);
380 else
381 b = 1 + job_len;
382
383 if (a + b + 1 < columns()) {
384 if (u->job_id == 0)
385 printf(" %-*s", job_len, "");
386
387 if (arg_full)
388 printf(" %s", u->description);
389 else
390 printf(" %.*s", columns() - a - b - 1, u->description);
eb68c413 391 }
b036fc00
LP		 392
393 fputs("\n", stdout);
eb68c413
ZJS		 394 }
395
9b2fcafb 396 if (on_tty()) {
eb68c413
ZJS		 397 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
398 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
399 "SUB = The low-level unit activation state, values depend on unit type.\n"
400 "JOB = Pending job for the unit.\n");
401
402 if (arg_all)
688c6725 403 printf("\n%u units listed.\n", n_shown);
eb68c413 404 else
688c6725 405 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
eb68c413
ZJS		 406 }
407}
408
7e4249b9
LP		 409static int list_units(DBusConnection *bus, char **args, unsigned n) {
410 DBusMessage *m = NULL, *reply = NULL;
411 DBusError error;
412 int r;
413 DBusMessageIter iter, sub, sub2;
eb68c413 414 unsigned c = 0, n_units = 0;
36c32ba2 415 struct unit_info *unit_infos = NULL;
7e4249b9
LP		 416
417 dbus_error_init(&error);
418
514f4ef5
LP		 419 assert(bus);
420
7e4249b9
LP		 421 if (!(m = dbus_message_new_method_call(
422 "org.freedesktop.systemd1",
423 "/org/freedesktop/systemd1",
424 "org.freedesktop.systemd1.Manager",
425 "ListUnits"))) {
426 log_error("Could not allocate message.");
427 return -ENOMEM;
428 }
429
430 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 431 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 432 r = -EIO;
433 goto finish;
434 }
435
436 if (!dbus_message_iter_init(reply, &iter) ||
437 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
438 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
439 log_error("Failed to parse reply.");
440 r = -EIO;
441 goto finish;
442 }
443
444 dbus_message_iter_recurse(&iter, &sub);
445
7e4249b9 446 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
36c32ba2 447 struct unit_info *u;
7e4249b9
LP		 448
449 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
450 log_error("Failed to parse reply.");
451 r = -EIO;
452 goto finish;
453 }
454
36c32ba2
LP		 455 if (c >= n_units) {
456 struct unit_info *w;
457
458 n_units = MAX(2*c, 16);
459 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
460
461 if (!w) {
462 log_error("Failed to allocate unit array.");
463 r = -ENOMEM;
464 goto finish;
465 }
466
467 unit_infos = w;
468 }
469
470 u = unit_infos+c;
471
7e4249b9
LP		 472 dbus_message_iter_recurse(&sub, &sub2);
473
36c32ba2
LP		 474 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
475 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
476 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
477 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
478 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
479 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
480 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
481 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
482 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
483 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
7e4249b9
LP		 484 log_error("Failed to parse reply.");
485 r = -EIO;
486 goto finish;
487 }
488
36c32ba2
LP		 489 dbus_message_iter_next(&sub);
490 c++;
491 }
492
493 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
eb68c413 494 output_units_list(unit_infos, c);
4445a875
LP		 495
496 r = 0;
497
498finish:
499 if (m)
500 dbus_message_unref(m);
501
502 if (reply)
503 dbus_message_unref(reply);
504
36c32ba2
LP		 505 free(unit_infos);
506
4445a875
LP		 507 dbus_error_free(&error);
508
509 return r;
510}
511
512static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
513 static const char * const colors[] = {
514 "Requires", "[color=\"black\"]",
515 "RequiresOverridable", "[color=\"black\"]",
516 "Requisite", "[color=\"darkblue\"]",
517 "RequisiteOverridable", "[color=\"darkblue\"]",
518 "Wants", "[color=\"darkgrey\"]",
519 "Conflicts", "[color=\"red\"]",
69dd2852 520 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 521 "After", "[color=\"green\"]"
522 };
523
524 const char *c = NULL;
525 unsigned i;
526
527 assert(name);
528 assert(prop);
529 assert(iter);
530
531 for (i = 0; i < ELEMENTSOF(colors); i += 2)
532 if (streq(colors[i], prop)) {
533 c = colors[i+1];
534 break;
535 }
536
537 if (!c)
538 return 0;
539
540 if (arg_dot != DOT_ALL)
541 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
542 return 0;
543
544 switch (dbus_message_iter_get_arg_type(iter)) {
545
546 case DBUS_TYPE_ARRAY:
547
548 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
549 DBusMessageIter sub;
550
551 dbus_message_iter_recurse(iter, &sub);
552
553 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
554 const char *s;
555
556 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
557 dbus_message_iter_get_basic(&sub, &s);
558 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
559
560 dbus_message_iter_next(&sub);
561 }
562
563 return 0;
564 }
565 }
566
567 return 0;
568}
569
570static int dot_one(DBusConnection *bus, const char *name, const char *path) {
571 DBusMessage *m = NULL, *reply = NULL;
572 const char *interface = "org.freedesktop.systemd1.Unit";
573 int r;
574 DBusError error;
575 DBusMessageIter iter, sub, sub2, sub3;
576
577 assert(bus);
578 assert(path);
579
580 dbus_error_init(&error);
581
582 if (!(m = dbus_message_new_method_call(
583 "org.freedesktop.systemd1",
584 path,
585 "org.freedesktop.DBus.Properties",
586 "GetAll"))) {
587 log_error("Could not allocate message.");
588 r = -ENOMEM;
589 goto finish;
590 }
591
592 if (!dbus_message_append_args(m,
593 DBUS_TYPE_STRING, &interface,
594 DBUS_TYPE_INVALID)) {
595 log_error("Could not append arguments to message.");
596 r = -ENOMEM;
597 goto finish;
598 }
599
600 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 601 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 602 r = -EIO;
603 goto finish;
604 }
605
606 if (!dbus_message_iter_init(reply, &iter) ||
607 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
608 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
609 log_error("Failed to parse reply.");
610 r = -EIO;
611 goto finish;
612 }
613
614 dbus_message_iter_recurse(&iter, &sub);
615
616 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
617 const char *prop;
618
619 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
620 log_error("Failed to parse reply.");
621 r = -EIO;
622 goto finish;
623 }
624
625 dbus_message_iter_recurse(&sub, &sub2);
626
627 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
628 log_error("Failed to parse reply.");
629 r = -EIO;
630 goto finish;
631 }
632
633 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
634 log_error("Failed to parse reply.");
635 r = -EIO;
636 goto finish;
637 }
638
639 dbus_message_iter_recurse(&sub2, &sub3);
640
641 if (dot_one_property(name, prop, &sub3)) {
642 log_error("Failed to parse reply.");
643 r = -EIO;
644 goto finish;
645 }
646
647 dbus_message_iter_next(&sub);
648 }
649
e364ad06
LP		 650 r = 0;
651
4445a875
LP		 652finish:
653 if (m)
654 dbus_message_unref(m);
655
656 if (reply)
657 dbus_message_unref(reply);
658
659 dbus_error_free(&error);
660
661 return r;
662}
663
664static int dot(DBusConnection *bus, char **args, unsigned n) {
665 DBusMessage *m = NULL, *reply = NULL;
666 DBusError error;
667 int r;
668 DBusMessageIter iter, sub, sub2;
669
670 dbus_error_init(&error);
671
672 assert(bus);
673
674 if (!(m = dbus_message_new_method_call(
675 "org.freedesktop.systemd1",
676 "/org/freedesktop/systemd1",
677 "org.freedesktop.systemd1.Manager",
678 "ListUnits"))) {
679 log_error("Could not allocate message.");
680 return -ENOMEM;
681 }
682
683 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 684 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 685 r = -EIO;
686 goto finish;
687 }
688
689 if (!dbus_message_iter_init(reply, &iter) ||
690 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
691 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
692 log_error("Failed to parse reply.");
693 r = -EIO;
694 goto finish;
695 }
696
697 printf("digraph systemd {\n");
698
699 dbus_message_iter_recurse(&iter, &sub);
700 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 701 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 702
703 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
704 log_error("Failed to parse reply.");
705 r = -EIO;
706 goto finish;
707 }
708
709 dbus_message_iter_recurse(&sub, &sub2);
710
711 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
712 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
713 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
714 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
715 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 716 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 717 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
718 log_error("Failed to parse reply.");
719 r = -EIO;
720 goto finish;
721 }
722
723 if ((r = dot_one(bus, id, unit_path)) < 0)
724 goto finish;
725
726 /* printf("\t\"%s\";\n", id); */
727 dbus_message_iter_next(&sub);
728 }
729
730 printf("}\n");
731
732 log_info(" Color legend: black = Requires\n"
733 " dark blue = Requisite\n"
734 " dark grey = Wants\n"
735 " red = Conflicts\n"
736 " green = After\n");
737
738 if (isatty(fileno(stdout)))
739 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
740 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 741
742 r = 0;
743
744finish:
745 if (m)
746 dbus_message_unref(m);
747
748 if (reply)
749 dbus_message_unref(reply);
750
751 dbus_error_free(&error);
752
753 return r;
754}
755
756static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
757 DBusMessage *m = NULL, *reply = NULL;
758 DBusError error;
759 int r;
760 DBusMessageIter iter, sub, sub2;
761 unsigned k = 0;
762
763 dbus_error_init(&error);
764
514f4ef5
LP		 765 assert(bus);
766
7e4249b9
LP		 767 if (!(m = dbus_message_new_method_call(
768 "org.freedesktop.systemd1",
769 "/org/freedesktop/systemd1",
770 "org.freedesktop.systemd1.Manager",
771 "ListJobs"))) {
772 log_error("Could not allocate message.");
773 return -ENOMEM;
774 }
775
776 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 777 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 778 r = -EIO;
779 goto finish;
780 }
781
782 if (!dbus_message_iter_init(reply, &iter) ||
783 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
784 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
785 log_error("Failed to parse reply.");
786 r = -EIO;
787 goto finish;
788 }
789
790 dbus_message_iter_recurse(&iter, &sub);
791
f73e33d9
LP		 792 if (isatty(STDOUT_FILENO))
793 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
7e4249b9
LP		 794
795 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
796 const char *name, *type, *state, *job_path, *unit_path;
797 uint32_t id;
8fe914ec 798 char *e;
7e4249b9
LP		 799
800 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
801 log_error("Failed to parse reply.");
802 r = -EIO;
803 goto finish;
804 }
805
806 dbus_message_iter_recurse(&sub, &sub2);
807
808 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
809 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
810 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
811 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
812 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
813 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
814 log_error("Failed to parse reply.");
815 r = -EIO;
816 goto finish;
817 }
818
f73e33d9
LP		 819 e = arg_full ? NULL : ellipsize(name, 25, 33);
820 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
8fe914ec
LP		 821 free(e);
822
7e4249b9
LP		 823 k++;
824
825 dbus_message_iter_next(&sub);
826 }
827
f73e33d9
LP		 828 if (isatty(STDOUT_FILENO))
829 printf("\n%u jobs listed.\n", k);
830
7e4249b9
LP		 831 r = 0;
832
833finish:
834 if (m)
835 dbus_message_unref(m);
836
837 if (reply)
838 dbus_message_unref(reply);
839
840 dbus_error_free(&error);
841
842 return r;
843}
844
845static int load_unit(DBusConnection *bus, char **args, unsigned n) {
846 DBusMessage *m = NULL, *reply = NULL;
847 DBusError error;
848 int r;
849 unsigned i;
850
851 dbus_error_init(&error);
852
514f4ef5
LP		 853 assert(bus);
854 assert(args);
855
7e4249b9
LP		 856 for (i = 1; i < n; i++) {
857
858 if (!(m = dbus_message_new_method_call(
859 "org.freedesktop.systemd1",
860 "/org/freedesktop/systemd1",
861 "org.freedesktop.systemd1.Manager",
862 "LoadUnit"))) {
863 log_error("Could not allocate message.");
864 r = -ENOMEM;
865 goto finish;
866 }
867
868 if (!dbus_message_append_args(m,
869 DBUS_TYPE_STRING, &args[i],
870 DBUS_TYPE_INVALID)) {
871 log_error("Could not append arguments to message.");
872 r = -ENOMEM;
873 goto finish;
874 }
875
876 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 877 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 878 r = -EIO;
879 goto finish;
880 }
881
882 dbus_message_unref(m);
883 dbus_message_unref(reply);
884
885 m = reply = NULL;
886 }
887
888 r = 0;
889
890finish:
891 if (m)
892 dbus_message_unref(m);
893
894 if (reply)
895 dbus_message_unref(reply);
896
897 dbus_error_free(&error);
898
899 return r;
900}
901
902static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
903 DBusMessage *m = NULL, *reply = NULL;
904 DBusError error;
905 int r;
906 unsigned i;
907
908 dbus_error_init(&error);
909
514f4ef5
LP		 910 assert(bus);
911 assert(args);
912
ee5762e3
LP		 913 if (n <= 1)
914 return daemon_reload(bus, args, n);
915
7e4249b9
LP		 916 for (i = 1; i < n; i++) {
917 unsigned id;
918 const char *path;
919
920 if (!(m = dbus_message_new_method_call(
921 "org.freedesktop.systemd1",
922 "/org/freedesktop/systemd1",
923 "org.freedesktop.systemd1.Manager",
924 "GetJob"))) {
925 log_error("Could not allocate message.");
926 r = -ENOMEM;
927 goto finish;
928 }
929
930 if ((r = safe_atou(args[i], &id)) < 0) {
931 log_error("Failed to parse job id: %s", strerror(-r));
932 goto finish;
933 }
934
935 assert_cc(sizeof(uint32_t) == sizeof(id));
936 if (!dbus_message_append_args(m,
937 DBUS_TYPE_UINT32, &id,
938 DBUS_TYPE_INVALID)) {
939 log_error("Could not append arguments to message.");
940 r = -ENOMEM;
941 goto finish;
942 }
943
944 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 945 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 946 r = -EIO;
947 goto finish;
948 }
949
950 if (!dbus_message_get_args(reply, &error,
951 DBUS_TYPE_OBJECT_PATH, &path,
952 DBUS_TYPE_INVALID)) {
4cf5d675 953 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 954 r = -EIO;
955 goto finish;
956 }
957
958 dbus_message_unref(m);
959 if (!(m = dbus_message_new_method_call(
960 "org.freedesktop.systemd1",
961 path,
962 "org.freedesktop.systemd1.Job",
963 "Cancel"))) {
964 log_error("Could not allocate message.");
965 r = -ENOMEM;
966 goto finish;
967 }
968
969 dbus_message_unref(reply);
970 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 971 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 972 r = -EIO;
973 goto finish;
974 }
975
976 dbus_message_unref(m);
977 dbus_message_unref(reply);
978 m = reply = NULL;
979 }
980
981 r = 0;
982
983finish:
984 if (m)
985 dbus_message_unref(m);
986
987 if (reply)
988 dbus_message_unref(reply);
989
990 dbus_error_free(&error);
991
992 return r;
993}
994
ee5762e3 995static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
e364ad06 996 DBusMessage *m = NULL, *reply = NULL;
45fb0699
LP		 997 dbus_bool_t b = FALSE;
998 DBusMessageIter iter, sub;
999 const char
1000 *interface = "org.freedesktop.systemd1.Unit",
1001 *property = "NeedDaemonReload",
1002 *path;
1003
1004 /* We ignore all errors here, since this is used to show a warning only */
1005
1006 if (!(m = dbus_message_new_method_call(
1007 "org.freedesktop.systemd1",
1008 "/org/freedesktop/systemd1",
1009 "org.freedesktop.systemd1.Manager",
1010 "GetUnit")))
1011 goto finish;
1012
1013 if (!dbus_message_append_args(m,
1014 DBUS_TYPE_STRING, &unit,
1015 DBUS_TYPE_INVALID))
1016 goto finish;
1017
1018 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1019 goto finish;
1020
1021 if (!dbus_message_get_args(reply, NULL,
1022 DBUS_TYPE_OBJECT_PATH, &path,
1023 DBUS_TYPE_INVALID))
1024 goto finish;
1025
1026 dbus_message_unref(m);
1027 if (!(m = dbus_message_new_method_call(
1028 "org.freedesktop.systemd1",
1029 path,
1030 "org.freedesktop.DBus.Properties",
1031 "Get")))
1032 goto finish;
1033
1034 if (!dbus_message_append_args(m,
1035 DBUS_TYPE_STRING, &interface,
1036 DBUS_TYPE_STRING, &property,
1037 DBUS_TYPE_INVALID)) {
1038 goto finish;
1039 }
1040
1041 dbus_message_unref(reply);
1042 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1043 goto finish;
1044
1045 if (!dbus_message_iter_init(reply, &iter) ||
1046 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1047 goto finish;
1048
1049 dbus_message_iter_recurse(&iter, &sub);
1050
1051 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1052 goto finish;
1053
1054 dbus_message_iter_get_basic(&sub, &b);
1055
1056finish:
1057 if (m)
1058 dbus_message_unref(m);
1059
1060 if (reply)
1061 dbus_message_unref(reply);
1062
1063 return b;
1064}
1065
5e374895
LP		 1066typedef struct WaitData {
1067 Set *set;
1068 bool failed;
1069} WaitData;
1070
7e4249b9
LP		 1071static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1072 DBusError error;
5e374895 1073 WaitData *d = data;
7e4249b9
LP		 1074
1075 assert(connection);
1076 assert(message);
5e374895 1077 assert(d);
7e4249b9
LP		 1078
1079 dbus_error_init(&error);
1080
54165a39
LP		 1081 log_debug("Got D-Bus request: %s.%s() on %s",
1082 dbus_message_get_interface(message),
1083 dbus_message_get_member(message),
1084 dbus_message_get_path(message));
7e4249b9
LP		 1085
1086 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1087 log_error("Warning! D-Bus connection terminated.");
1088 dbus_connection_close(connection);
1089
1090 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1091 uint32_t id;
1092 const char *path;
5e374895 1093 dbus_bool_t success = true;
7e4249b9
LP		 1094
1095 if (!dbus_message_get_args(message, &error,
1096 DBUS_TYPE_UINT32, &id,
1097 DBUS_TYPE_OBJECT_PATH, &path,
5e374895 1098 DBUS_TYPE_BOOLEAN, &success,
7e4249b9 1099 DBUS_TYPE_INVALID))
4cf5d675 1100 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 1101 else {
1102 char *p;
1103
5e374895 1104 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 1105 free(p);
5e374895
LP		 1106
1107 if (!success)
1108 d->failed = true;
7e4249b9
LP		 1109 }
1110 }
1111
1112 dbus_error_free(&error);
1113 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1114}
1115
479ef5d3 1116static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 1117 DBusError error;
7e4249b9
LP		 1118
1119 assert(bus);
7e4249b9 1120
f4579ce7
LP		 1121 if (private_bus)
1122 return 0;
1123
7e4249b9 1124 dbus_error_init(&error);
7e4249b9
LP		 1125 dbus_bus_add_match(bus,
1126 "type='signal',"
1127 "sender='org.freedesktop.systemd1',"
1128 "interface='org.freedesktop.systemd1.Manager',"
1129 "member='JobRemoved',"
1130 "path='/org/freedesktop/systemd1'",
1131 &error);
1132
1133 if (dbus_error_is_set(&error)) {
4cf5d675 1134 log_error("Failed to add match: %s", bus_error_message(&error));
a567261a
LP		 1135 dbus_error_free(&error);
1136 return -EIO;
7e4249b9
LP		 1137 }
1138
479ef5d3 1139 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 1140 return 0;
7e4249b9
LP		 1141}
1142
479ef5d3
LP		 1143static int wait_for_jobs(DBusConnection *bus, Set *s) {
1144 int r;
5e374895 1145 WaitData d;
479ef5d3
LP		 1146
1147 assert(bus);
1148 assert(s);
1149
5e374895
LP		 1150 zero(d);
1151 d.set = s;
1152 d.failed = false;
1153
1154 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 1155 log_error("Failed to add filter.");
1156 r = -ENOMEM;
1157 goto finish;
1158 }
1159
1160 while (!set_isempty(s) &&
1161 dbus_connection_read_write_dispatch(bus, -1))
1162 ;
1163
5e374895 1164 if (!arg_quiet && d.failed)
da8f9f8c 1165 log_error("Job failed. See system logs and 'systemctl status' for details.");
5e374895
LP		 1166
1167 r = d.failed ? -EIO : 0;
479ef5d3
LP		 1168
1169finish:
1170 /* This is slightly dirty, since we don't undo the filter registration. */
1171
1172 return r;
1173}
1174
e4b61340
LP		 1175static int start_unit_one(
1176 DBusConnection *bus,
1177 const char *method,
1178 const char *name,
1179 const char *mode,
22f4096c 1180 DBusError *error,
e4b61340 1181 Set *s) {
7e4249b9 1182
7e4249b9 1183 DBusMessage *m = NULL, *reply = NULL;
45fb0699 1184 const char *path;
7e4249b9 1185 int r;
7e4249b9 1186
e4b61340
LP		 1187 assert(bus);
1188 assert(method);
1189 assert(name);
1190 assert(mode);
22f4096c 1191 assert(error);
6e905d93 1192 assert(arg_no_block || s);
7e4249b9
LP		 1193
1194 if (!(m = dbus_message_new_method_call(
1195 "org.freedesktop.systemd1",
1196 "/org/freedesktop/systemd1",
1197 "org.freedesktop.systemd1.Manager",
e4b61340 1198 method))) {
7e4249b9
LP		 1199 log_error("Could not allocate message.");
1200 r = -ENOMEM;
1201 goto finish;
1202 }
1203
1204 if (!dbus_message_append_args(m,
e4b61340 1205 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 1206 DBUS_TYPE_STRING, &mode,
1207 DBUS_TYPE_INVALID)) {
1208 log_error("Could not append arguments to message.");
1209 r = -ENOMEM;
1210 goto finish;
1211 }
1212
22f4096c 1213 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
e4b61340 1214
22f4096c 1215 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
e4b61340
LP		 1216 /* There's always a fallback possible for
1217 * legacy actions. */
706900b7 1218 r = -EADDRNOTAVAIL;
e4b61340
LP		 1219 goto finish;
1220 }
1221
22f4096c 1222 log_error("Failed to issue method call: %s", bus_error_message(error));
7e4249b9
LP		 1223 r = -EIO;
1224 goto finish;
1225 }
1226
22f4096c 1227 if (!dbus_message_get_args(reply, error,
45fb0699
LP		 1228 DBUS_TYPE_OBJECT_PATH, &path,
1229 DBUS_TYPE_INVALID)) {
22f4096c 1230 log_error("Failed to parse reply: %s", bus_error_message(error));
45fb0699
LP		 1231 r = -EIO;
1232 goto finish;
1233 }
1234
ee5762e3 1235 if (need_daemon_reload(bus, name))
45fb0699
LP		 1236 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1237 arg_session ? "--session" : "--system");
1238
6e905d93 1239 if (!arg_no_block) {
e4b61340 1240 char *p;
7e4249b9 1241
7e4249b9
LP		 1242 if (!(p = strdup(path))) {
1243 log_error("Failed to duplicate path.");
1244 r = -ENOMEM;
1245 goto finish;
1246 }
1247
1248 if ((r = set_put(s, p)) < 0) {
e4b61340 1249 free(p);
7e4249b9
LP		 1250 log_error("Failed to add path to set.");
1251 goto finish;
1252 }
e4b61340 1253 }
7e4249b9 1254
706900b7 1255 r = 0;
22f4096c 1256
7e4249b9 1257finish:
7e4249b9
LP		 1258 if (m)
1259 dbus_message_unref(m);
1260
1261 if (reply)
1262 dbus_message_unref(reply);
1263
7e4249b9
LP		 1264 return r;
1265}
1266
514f4ef5
LP		 1267static enum action verb_to_action(const char *verb) {
1268 if (streq(verb, "halt"))
1269 return ACTION_HALT;
1270 else if (streq(verb, "poweroff"))
1271 return ACTION_POWEROFF;
1272 else if (streq(verb, "reboot"))
1273 return ACTION_REBOOT;
20b09ca7
LP		 1274 else if (streq(verb, "kexec"))
1275 return ACTION_KEXEC;
514f4ef5
LP		 1276 else if (streq(verb, "rescue"))
1277 return ACTION_RESCUE;
1278 else if (streq(verb, "emergency"))
1279 return ACTION_EMERGENCY;
1280 else if (streq(verb, "default"))
1281 return ACTION_DEFAULT;
20b09ca7
LP		 1282 else if (streq(verb, "exit"))
1283 return ACTION_EXIT;
514f4ef5
LP		 1284 else
1285 return ACTION_INVALID;
1286}
1287
e4b61340
LP		 1288static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1289
1290 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1291 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1292 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1293 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
20b09ca7 1294 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
514f4ef5
LP		 1295 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1296 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1297 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1298 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1299 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1300 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
20b09ca7
LP		 1301 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1302 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
e4b61340
LP		 1303 };
1304
22f4096c 1305 int r, ret = 0;
e4b61340 1306 unsigned i;
514f4ef5 1307 const char *method, *mode, *one_name;
e4b61340 1308 Set *s = NULL;
22f4096c
LP		 1309 DBusError error;
1310
1311 dbus_error_init(&error);
e4b61340 1312
514f4ef5
LP		 1313 assert(bus);
1314
501fc174
LP		 1315 spawn_ask_password_agent();
1316
e4b61340
LP		 1317 if (arg_action == ACTION_SYSTEMCTL) {
1318 method =
6f28c033
LP		 1319 streq(args[0], "stop") ? "StopUnit" :
1320 streq(args[0], "reload") ? "ReloadUnit" :
1321 streq(args[0], "restart") ? "RestartUnit" :
aa5939a3
MS		 1322 streq(args[0], "try-restart") ||
1323 streq(args[0], "condrestart") ? "TryRestartUnit" :
6f28c033 1324 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
9d8a57ff 1325 streq(args[0], "reload-or-try-restart") ||
aa5939a3 1326 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
6f28c033 1327 "StartUnit";
e4b61340
LP		 1328
1329 mode =
514f4ef5
LP		 1330 (streq(args[0], "isolate") ||
1331 streq(args[0], "rescue") ||
1332 streq(args[0], "emergency")) ? "isolate" :
90d473a1
LP		 1333 arg_fail ? "fail" :
1334 "replace";
e4b61340 1335
514f4ef5 1336 one_name = table[verb_to_action(args[0])];
e4b61340 1337
e4b61340
LP		 1338 } else {
1339 assert(arg_action < ELEMENTSOF(table));
1340 assert(table[arg_action]);
1341
1342 method = "StartUnit";
514f4ef5
LP		 1343
1344 mode = (arg_action == ACTION_EMERGENCY ||
6f0d624e
LP		 1345 arg_action == ACTION_RESCUE ||
1346 arg_action == ACTION_RUNLEVEL2 ||
1347 arg_action == ACTION_RUNLEVEL3 ||
1348 arg_action == ACTION_RUNLEVEL4 ||
1349 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
514f4ef5
LP		 1350
1351 one_name = table[arg_action];
1352 }
1353
6e905d93 1354 if (!arg_no_block) {
22f4096c
LP		 1355 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1356 log_error("Could not watch jobs: %s", strerror(-ret));
514f4ef5
LP		 1357 goto finish;
1358 }
1359
1360 if (!(s = set_new(string_hash_func, string_compare_func))) {
1361 log_error("Failed to allocate set.");
22f4096c 1362 ret = -ENOMEM;
514f4ef5
LP		 1363 goto finish;
1364 }
e4b61340
LP		 1365 }
1366
514f4ef5 1367 if (one_name) {
22f4096c 1368 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
514f4ef5
LP		 1369 goto finish;
1370 } else {
e4b61340 1371 for (i = 1; i < n; i++)
22f4096c 1372 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
706900b7 1373 ret = translate_bus_error_to_exit_status(r, &error);
22f4096c
LP		 1374 dbus_error_free(&error);
1375 }
e4b61340
LP		 1376 }
1377
6e905d93 1378 if (!arg_no_block)
22f4096c
LP		 1379 if ((r = wait_for_jobs(bus, s)) < 0) {
1380 ret = r;
fbc43921 1381 goto finish;
22f4096c 1382 }
514f4ef5 1383
e4b61340
LP		 1384finish:
1385 if (s)
1386 set_free_free(s);
1387
22f4096c
LP		 1388 dbus_error_free(&error);
1389
1390 return ret;
e4b61340
LP		 1391}
1392
514f4ef5 1393static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1394 int r;
1395
514f4ef5
LP		 1396 assert(bus);
1397 assert(args);
1398
20b09ca7
LP		 1399 if (arg_force &&
1400 (streq(args[0], "halt") ||
1401 streq(args[0], "poweroff") ||
1402 streq(args[0], "reboot") ||
1403 streq(args[0], "kexec") ||
1404 streq(args[0], "exit")))
1405 return daemon_reload(bus, args, n);
1406
983d9c90
LP		 1407 r = start_unit(bus, args, n);
1408
1409 if (r >= 0)
1410 warn_wall(verb_to_action(args[0]));
514f4ef5 1411
983d9c90 1412 return r;
514f4ef5
LP		 1413}
1414
0183528f
LP		 1415static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1416 DBusMessage *m = NULL, *reply = NULL;
1417 const char
1418 *interface = "org.freedesktop.systemd1.Unit",
1419 *property = "ActiveState";
22f4096c 1420 int r = 3; /* According to LSB: "program is not running" */
0183528f
LP		 1421 DBusError error;
1422 unsigned i;
1423
1424 assert(bus);
1425 assert(args);
1426
1427 dbus_error_init(&error);
1428
1429 for (i = 1; i < n; i++) {
1430 const char *path = NULL;
1431 const char *state;
1432 DBusMessageIter iter, sub;
1433
1434 if (!(m = dbus_message_new_method_call(
1435 "org.freedesktop.systemd1",
1436 "/org/freedesktop/systemd1",
1437 "org.freedesktop.systemd1.Manager",
1438 "GetUnit"))) {
1439 log_error("Could not allocate message.");
1440 r = -ENOMEM;
1441 goto finish;
1442 }
1443
1444 if (!dbus_message_append_args(m,
1445 DBUS_TYPE_STRING, &args[i],
1446 DBUS_TYPE_INVALID)) {
1447 log_error("Could not append arguments to message.");
1448 r = -ENOMEM;
1449 goto finish;
1450 }
1451
1452 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1453
1454 /* Hmm, cannot figure out anything about this unit... */
1455 if (!arg_quiet)
1456 puts("unknown");
1457
ed2d7a44 1458 dbus_error_free(&error);
8a0867d6 1459 dbus_message_unref(m);
0183528f
LP		 1460 continue;
1461 }
1462
1463 if (!dbus_message_get_args(reply, &error,
1464 DBUS_TYPE_OBJECT_PATH, &path,
1465 DBUS_TYPE_INVALID)) {
4cf5d675 1466 log_error("Failed to parse reply: %s", bus_error_message(&error));
0183528f
LP		 1467 r = -EIO;
1468 goto finish;
1469 }
1470
1471 dbus_message_unref(m);
1472 if (!(m = dbus_message_new_method_call(
1473 "org.freedesktop.systemd1",
1474 path,
1475 "org.freedesktop.DBus.Properties",
1476 "Get"))) {
1477 log_error("Could not allocate message.");
1478 r = -ENOMEM;
1479 goto finish;
1480 }
1481
1482 if (!dbus_message_append_args(m,
1483 DBUS_TYPE_STRING, &interface,
1484 DBUS_TYPE_STRING, &property,
1485 DBUS_TYPE_INVALID)) {
1486 log_error("Could not append arguments to message.");
1487 r = -ENOMEM;
1488 goto finish;
1489 }
1490
1491 dbus_message_unref(reply);
1492 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1493 log_error("Failed to issue method call: %s", bus_error_message(&error));
0183528f
LP		 1494 r = -EIO;
1495 goto finish;
1496 }
1497
1498 if (!dbus_message_iter_init(reply, &iter) ||
1499 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1500 log_error("Failed to parse reply.");
1501 r = -EIO;
1502 goto finish;
1503 }
1504
1505 dbus_message_iter_recurse(&iter, &sub);
1506
1507 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1508 log_error("Failed to parse reply.");
1509 r = -EIO;
1510 goto finish;
1511 }
1512
1513 dbus_message_iter_get_basic(&sub, &state);
1514
1515 if (!arg_quiet)
1516 puts(state);
1517
f1e36d67 1518 if (streq(state, "active") || streq(state, "reloading"))
0183528f
LP		 1519 r = 0;
1520
1521 dbus_message_unref(m);
1522 dbus_message_unref(reply);
1523 m = reply = NULL;
1524 }
1525
1526finish:
1527 if (m)
1528 dbus_message_unref(m);
1529
1530 if (reply)
1531 dbus_message_unref(reply);
1532
1533 dbus_error_free(&error);
1534
1535 return r;
48220598
LP		 1536}
1537
8a0867d6
LP		 1538static int kill_unit(DBusConnection *bus, char **args, unsigned n) {
1539 DBusMessage *m = NULL, *reply = NULL;
1540 int r = 0;
1541 DBusError error;
1542 unsigned i;
1543
1544 assert(bus);
1545 assert(args);
1546
1547 dbus_error_init(&error);
1548
1549 if (!arg_kill_who)
1550 arg_kill_who = "all";
1551
1552 if (!arg_kill_mode)
1553 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
1554
1555 for (i = 1; i < n; i++) {
1556
1557 if (!(m = dbus_message_new_method_call(
1558 "org.freedesktop.systemd1",
1559 "/org/freedesktop/systemd1",
1560 "org.freedesktop.systemd1.Manager",
1561 "KillUnit"))) {
1562 log_error("Could not allocate message.");
1563 r = -ENOMEM;
1564 goto finish;
1565 }
1566
1567 if (!dbus_message_append_args(m,
1568 DBUS_TYPE_STRING, &args[i],
1569 DBUS_TYPE_STRING, &arg_kill_who,
1570 DBUS_TYPE_STRING, &arg_kill_mode,
1571 DBUS_TYPE_INT32, &arg_signal,
1572 DBUS_TYPE_INVALID)) {
1573 log_error("Could not append arguments to message.");
1574 r = -ENOMEM;
1575 goto finish;
1576 }
1577
1578 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1579 log_error("Failed to issue method call: %s", bus_error_message(&error));
1580 dbus_error_free(&error);
1581 r = -EIO;
1582 }
1583
1584 dbus_message_unref(m);
1585
1586 if (reply)
1587 dbus_message_unref(reply);
1588 m = reply = NULL;
1589 }
1590
1591finish:
1592 if (m)
1593 dbus_message_unref(m);
1594
1595 if (reply)
1596 dbus_message_unref(reply);
1597
1598 dbus_error_free(&error);
1599
1600 return r;
1601}
1602
582a507f
LP		 1603typedef struct ExecStatusInfo {
1604 char *path;
1605 char **argv;
1606
b708e7ce
LP		 1607 bool ignore;
1608
582a507f
LP		 1609 usec_t start_timestamp;
1610 usec_t exit_timestamp;
1611 pid_t pid;
1612 int code;
1613 int status;
1614
1615 LIST_FIELDS(struct ExecStatusInfo, exec);
1616} ExecStatusInfo;
1617
1618static void exec_status_info_free(ExecStatusInfo *i) {
1619 assert(i);
1620
1621 free(i->path);
1622 strv_free(i->argv);
1623 free(i);
1624}
1625
1626static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1627 uint64_t start_timestamp, exit_timestamp;
1628 DBusMessageIter sub2, sub3;
1629 const char*path;
1630 unsigned n;
1631 uint32_t pid;
1632 int32_t code, status;
b708e7ce 1633 dbus_bool_t ignore;
582a507f
LP		 1634
1635 assert(i);
1636 assert(i);
1637
1638 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1639 return -EIO;
1640
1641 dbus_message_iter_recurse(sub, &sub2);
1642
1643 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1644 return -EIO;
1645
1646 if (!(i->path = strdup(path)))
1647 return -ENOMEM;
1648
1649 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1650 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1651 return -EIO;
1652
1653 n = 0;
1654 dbus_message_iter_recurse(&sub2, &sub3);
1655 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1656 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1657 dbus_message_iter_next(&sub3);
1658 n++;
1659 }
1660
1661
1662 if (!(i->argv = new0(char*, n+1)))
1663 return -ENOMEM;
1664
1665 n = 0;
1666 dbus_message_iter_recurse(&sub2, &sub3);
1667 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1668 const char *s;
1669
1670 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1671 dbus_message_iter_get_basic(&sub3, &s);
1672 dbus_message_iter_next(&sub3);
1673
1674 if (!(i->argv[n++] = strdup(s)))
1675 return -ENOMEM;
1676 }
1677
1678 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1679 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1680 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1681 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1682 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1683 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1684 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1685 return -EIO;
1686
b708e7ce 1687 i->ignore = ignore;
582a507f
LP		 1688 i->start_timestamp = (usec_t) start_timestamp;
1689 i->exit_timestamp = (usec_t) exit_timestamp;
1690 i->pid = (pid_t) pid;
1691 i->code = code;
1692 i->status = status;
1693
1694 return 0;
1695}
1696
61cbdc4b
LP		 1697typedef struct UnitStatusInfo {
1698 const char *id;
1699 const char *load_state;
1700 const char *active_state;
1701 const char *sub_state;
1702
1703 const char *description;
4a9e2fff 1704 const char *following;
61cbdc4b 1705
c31b4423 1706 const char *path;
61cbdc4b
LP		 1707 const char *default_control_group;
1708
584be568
LP		 1709 usec_t inactive_exit_timestamp;
1710 usec_t active_enter_timestamp;
1711 usec_t active_exit_timestamp;
1712 usec_t inactive_enter_timestamp;
1713
45fb0699
LP		 1714 bool need_daemon_reload;
1715
61cbdc4b
LP		 1716 /* Service */
1717 pid_t main_pid;
1718 pid_t control_pid;
1719 const char *status_text;
d06dacd0 1720 bool running:1;
07459bb6 1721#ifdef HAVE_SYSV_COMPAT
d06dacd0 1722 bool is_sysv:1;
07459bb6 1723#endif
61cbdc4b
LP		 1724
1725 usec_t start_timestamp;
1726 usec_t exit_timestamp;
1727
1728 int exit_code, exit_status;
1729
1730 /* Socket */
1731 unsigned n_accepted;
1732 unsigned n_connections;
b8131a87 1733 bool accept;
61cbdc4b
LP		 1734
1735 /* Device */
1736 const char *sysfs_path;
1737
1738 /* Mount, Automount */
1739 const char *where;
1740
1741 /* Swap */
1742 const char *what;
582a507f
LP		 1743
1744 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1745} UnitStatusInfo;
1746
1747static void print_status_info(UnitStatusInfo *i) {
582a507f 1748 ExecStatusInfo *p;
2ee68f72 1749 const char *on, *off, *ss;
584be568
LP		 1750 usec_t timestamp;
1751 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1752 char since2[FORMAT_TIMESTAMP_MAX], *s2;
582a507f 1753
61cbdc4b
LP		 1754 assert(i);
1755
1756 /* This shows pretty information about a unit. See
1757 * print_property() for a low-level property printer */
1758
1759 printf("%s", strna(i->id));
1760
1761 if (i->description && !streq_ptr(i->id, i->description))
1762 printf(" - %s", i->description);
1763
1764 printf("\n");
1765
4a9e2fff
LP		 1766 if (i->following)
1767 printf("\t Follow: unit currently follows state of %s\n", i->following);
1768
00dc5d76
LP		 1769 if (streq_ptr(i->load_state, "failed") ||
1770 streq_ptr(i->load_state, "banned")) {
c31b4423
LP		 1771 on = ansi_highlight(true);
1772 off = ansi_highlight(false);
1773 } else
1774 on = off = "";
1775
1776 if (i->path)
1777 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1778 else
c31b4423 1779 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1780
2ee68f72
LP		 1781 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1782
fdf20a31 1783 if (streq_ptr(i->active_state, "failed")) {
2ee68f72
LP		 1784 on = ansi_highlight(true);
1785 off = ansi_highlight(false);
1786 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1787 on = ansi_highlight_green(true);
1788 off = ansi_highlight_green(false);
1789 } else
1790 on = off = "";
1791
1792 if (ss)
584be568 1793 printf("\t Active: %s%s (%s)%s",
2ee68f72
LP		 1794 on,
1795 strna(i->active_state),
1796 ss,
1797 off);
1798 else
584be568 1799 printf("\t Active: %s%s%s",
2ee68f72
LP		 1800 on,
1801 strna(i->active_state),
1802 off);
61cbdc4b 1803
584be568
LP		 1804 timestamp = (streq_ptr(i->active_state, "active") ||
1805 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1806 (streq_ptr(i->active_state, "inactive") ||
fdf20a31 1807 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
584be568
LP		 1808 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1809 i->active_exit_timestamp;
1810
1811 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1812 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1813
1814 if (s1)
538da63d 1815 printf(" since %s; %s\n", s2, s1);
584be568 1816 else if (s2)
538da63d 1817 printf(" since %s\n", s2);
584be568
LP		 1818 else
1819 printf("\n");
1820
61cbdc4b
LP		 1821 if (i->sysfs_path)
1822 printf("\t Device: %s\n", i->sysfs_path);
1823 else if (i->where)
1824 printf("\t Where: %s\n", i->where);
1825 else if (i->what)
1826 printf("\t What: %s\n", i->what);
1827
b8131a87 1828 if (i->accept)
61cbdc4b
LP		 1829 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1830
582a507f
LP		 1831 LIST_FOREACH(exec, p, i->exec) {
1832 char *t;
1833
1834 /* Only show exited processes here */
1835 if (p->code == 0)
1836 continue;
1837
1838 t = strv_join(p->argv, " ");
f3d41013 1839 printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
582a507f
LP		 1840 free(t);
1841
d06dacd0
LP		 1842 if (p->code == CLD_EXITED) {
1843 const char *c;
1844
582a507f 1845 printf("status=%i", p->status);
d06dacd0 1846
07459bb6 1847#ifdef HAVE_SYSV_COMPAT
d06dacd0 1848 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1849#else
1850 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1851#endif
d06dacd0
LP		 1852 printf("/%s", c);
1853
1854 } else
582a507f
LP		 1855 printf("signal=%s", signal_to_string(p->status));
1856 printf(")\n");
1857
1858 if (i->main_pid == p->pid &&
1859 i->start_timestamp == p->start_timestamp &&
1860 i->exit_timestamp == p->start_timestamp)
1861 /* Let's not show this twice */
1862 i->main_pid = 0;
1863
1864 if (p->pid == i->control_pid)
1865 i->control_pid = 0;
1866 }
1867
61cbdc4b
LP		 1868 if (i->main_pid > 0 || i->control_pid > 0) {
1869 printf("\t");
1870
1871 if (i->main_pid > 0) {
f3d41013 1872 printf("Main PID: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1873
1874 if (i->running) {
1875 char *t = NULL;
1876 get_process_name(i->main_pid, &t);
1877 if (t) {
1878 printf(" (%s)", t);
1879 free(t);
1880 }
6d4fc029 1881 } else if (i->exit_code > 0) {
61cbdc4b
LP		 1882 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1883
d06dacd0
LP		 1884 if (i->exit_code == CLD_EXITED) {
1885 const char *c;
1886
61cbdc4b 1887 printf("status=%i", i->exit_status);
d06dacd0 1888
07459bb6 1889#ifdef HAVE_SYSV_COMPAT
d06dacd0 1890 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1891#else
1892 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
1893#endif
d06dacd0
LP		 1894 printf("/%s", c);
1895
1896 } else
582a507f 1897 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 1898 printf(")");
1899 }
61cbdc4b
LP		 1900 }
1901
1902 if (i->main_pid > 0 && i->control_pid > 0)
1903 printf(";");
1904
1905 if (i->control_pid > 0) {
1906 char *t = NULL;
1907
1908 printf(" Control: %u", (unsigned) i->control_pid);
1909
1910 get_process_name(i->control_pid, &t);
1911 if (t) {
1912 printf(" (%s)", t);
1913 free(t);
1914 }
1915 }
1916
1917 printf("\n");
1918 }
1919
17bb7382
LP		 1920 if (i->status_text)
1921 printf("\t Status: \"%s\"\n", i->status_text);
1922
c59760ee 1923 if (i->default_control_group) {
ab35fb1b
LP		 1924 unsigned c;
1925
61cbdc4b 1926 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 1927
1928 if ((c = columns()) > 18)
1929 c -= 18;
1930 else
1931 c = 0;
1932
35d2e7ec 1933 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 1934 }
45fb0699
LP		 1935
1936 if (i->need_daemon_reload)
2cc59dbf
LP		 1937 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1938 ansi_highlight(true),
1939 ansi_highlight(false),
45fb0699 1940 arg_session ? "--session" : "--system");
61cbdc4b
LP		 1941}
1942
1943static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1944
1945 switch (dbus_message_iter_get_arg_type(iter)) {
1946
1947 case DBUS_TYPE_STRING: {
1948 const char *s;
1949
1950 dbus_message_iter_get_basic(iter, &s);
1951
1952 if (s[0]) {
1953 if (streq(name, "Id"))
1954 i->id = s;
1955 else if (streq(name, "LoadState"))
1956 i->load_state = s;
1957 else if (streq(name, "ActiveState"))
1958 i->active_state = s;
1959 else if (streq(name, "SubState"))
1960 i->sub_state = s;
1961 else if (streq(name, "Description"))
1962 i->description = s;
1963 else if (streq(name, "FragmentPath"))
c31b4423 1964 i->path = s;
07459bb6 1965#ifdef HAVE_SYSV_COMPAT
d06dacd0
LP		 1966 else if (streq(name, "SysVPath")) {
1967 i->is_sysv = true;
c31b4423 1968 i->path = s;
07459bb6
FF		 1969 }
1970#endif
1971 else if (streq(name, "DefaultControlGroup"))
61cbdc4b
LP		 1972 i->default_control_group = s;
1973 else if (streq(name, "StatusText"))
1974 i->status_text = s;
1975 else if (streq(name, "SysFSPath"))
1976 i->sysfs_path = s;
1977 else if (streq(name, "Where"))
1978 i->where = s;
1979 else if (streq(name, "What"))
1980 i->what = s;
4a9e2fff
LP		 1981 else if (streq(name, "Following"))
1982 i->following = s;
61cbdc4b
LP		 1983 }
1984
1985 break;
1986 }
1987
b8131a87
LP		 1988 case DBUS_TYPE_BOOLEAN: {
1989 dbus_bool_t b;
1990
1991 dbus_message_iter_get_basic(iter, &b);
1992
1993 if (streq(name, "Accept"))
1994 i->accept = b;
45fb0699
LP		 1995 else if (streq(name, "NeedDaemonReload"))
1996 i->need_daemon_reload = b;
b8131a87
LP		 1997
1998 break;
1999 }
2000
61cbdc4b
LP		 2001 case DBUS_TYPE_UINT32: {
2002 uint32_t u;
2003
2004 dbus_message_iter_get_basic(iter, &u);
2005
2006 if (streq(name, "MainPID")) {
2007 if (u > 0) {
2008 i->main_pid = (pid_t) u;
2009 i->running = true;
2010 }
2011 } else if (streq(name, "ControlPID"))
2012 i->control_pid = (pid_t) u;
2013 else if (streq(name, "ExecMainPID")) {
2014 if (u > 0)
2015 i->main_pid = (pid_t) u;
2016 } else if (streq(name, "NAccepted"))
2017 i->n_accepted = u;
2018 else if (streq(name, "NConnections"))
2019 i->n_connections = u;
2020
2021 break;
2022 }
2023
2024 case DBUS_TYPE_INT32: {
2025 int32_t j;
2026
2027 dbus_message_iter_get_basic(iter, &j);
2028
2029 if (streq(name, "ExecMainCode"))
2030 i->exit_code = (int) j;
2031 else if (streq(name, "ExecMainStatus"))
2032 i->exit_status = (int) j;
2033
2034 break;
2035 }
2036
2037 case DBUS_TYPE_UINT64: {
2038 uint64_t u;
2039
2040 dbus_message_iter_get_basic(iter, &u);
2041
2042 if (streq(name, "ExecMainStartTimestamp"))
2043 i->start_timestamp = (usec_t) u;
2044 else if (streq(name, "ExecMainExitTimestamp"))
2045 i->exit_timestamp = (usec_t) u;
584be568
LP		 2046 else if (streq(name, "ActiveEnterTimestamp"))
2047 i->active_enter_timestamp = (usec_t) u;
2048 else if (streq(name, "InactiveEnterTimestamp"))
2049 i->inactive_enter_timestamp = (usec_t) u;
2050 else if (streq(name, "InactiveExitTimestamp"))
2051 i->inactive_exit_timestamp = (usec_t) u;
2052 else if (streq(name, "ActiveExitTimestamp"))
2053 i->active_exit_timestamp = (usec_t) u;
61cbdc4b
LP		 2054
2055 break;
2056 }
582a507f
LP		 2057
2058 case DBUS_TYPE_ARRAY: {
2059
2060 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2061 startswith(name, "Exec")) {
2062 DBusMessageIter sub;
2063
2064 dbus_message_iter_recurse(iter, &sub);
2065 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2066 ExecStatusInfo *info;
2067 int r;
2068
2069 if (!(info = new0(ExecStatusInfo, 1)))
2070 return -ENOMEM;
2071
2072 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2073 free(info);
2074 return r;
2075 }
2076
2077 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2078
2079 dbus_message_iter_next(&sub);
2080 }
2081 }
2082
2083 break;
2084 }
61cbdc4b
LP		 2085 }
2086
2087 return 0;
2088}
2089
48220598
LP		 2090static int print_property(const char *name, DBusMessageIter *iter) {
2091 assert(name);
2092 assert(iter);
2093
61cbdc4b
LP		 2094 /* This is a low-level property printer, see
2095 * print_status_info() for the nicer output */
2096
ea4a240d 2097 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 2098 return 0;
2099
2100 switch (dbus_message_iter_get_arg_type(iter)) {
2101
2102 case DBUS_TYPE_STRING: {
2103 const char *s;
2104 dbus_message_iter_get_basic(iter, &s);
2105
2106 if (arg_all || s[0])
2107 printf("%s=%s\n", name, s);
2108
2109 return 0;
2110 }
2111
2112 case DBUS_TYPE_BOOLEAN: {
2113 dbus_bool_t b;
2114 dbus_message_iter_get_basic(iter, &b);
2115 printf("%s=%s\n", name, yes_no(b));
2116
2117 return 0;
2118 }
2119
2120 case DBUS_TYPE_UINT64: {
2121 uint64_t u;
2122 dbus_message_iter_get_basic(iter, &u);
2123
2124 /* Yes, heuristics! But we can change this check
2125 * should it turn out to not be sufficient */
2126
14ad1d14 2127 if (strstr(name, "Timestamp")) {
48220598
LP		 2128 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
2129
2130 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
2131 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 2132 } else if (strstr(name, "USec")) {
2133 char timespan[FORMAT_TIMESPAN_MAX];
2134
2135 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 2136 } else
2137 printf("%s=%llu\n", name, (unsigned long long) u);
2138
2139 return 0;
2140 }
2141
2142 case DBUS_TYPE_UINT32: {
2143 uint32_t u;
2144 dbus_message_iter_get_basic(iter, &u);
2145
5bd07073 2146 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 2147 printf("%s=%04o\n", name, u);
2148 else
2149 printf("%s=%u\n", name, (unsigned) u);
2150
2151 return 0;
2152 }
2153
2154 case DBUS_TYPE_INT32: {
2155 int32_t i;
2156 dbus_message_iter_get_basic(iter, &i);
2157
2158 printf("%s=%i\n", name, (int) i);
2159 return 0;
2160 }
2161
05d6a3b6
LP		 2162 case DBUS_TYPE_DOUBLE: {
2163 double d;
2164 dbus_message_iter_get_basic(iter, &d);
2165
2166 printf("%s=%g\n", name, d);
2167 return 0;
2168 }
2169
48220598
LP		 2170 case DBUS_TYPE_STRUCT: {
2171 DBusMessageIter sub;
2172 dbus_message_iter_recurse(iter, &sub);
2173
ebf57b80 2174 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 2175 uint32_t u;
2176
2177 dbus_message_iter_get_basic(&sub, &u);
2178
2179 if (u)
2180 printf("%s=%u\n", name, (unsigned) u);
2181 else if (arg_all)
2182 printf("%s=\n", name);
2183
2184 return 0;
ebf57b80 2185 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 2186 const char *s;
2187
2188 dbus_message_iter_get_basic(&sub, &s);
2189
2190 if (arg_all || s[0])
2191 printf("%s=%s\n", name, s);
2192
2193 return 0;
2194 }
2195
2196 break;
2197 }
2198
2199 case DBUS_TYPE_ARRAY:
2200
2201 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2202 DBusMessageIter sub;
2203 bool space = false;
2204
2205 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 2206 if (arg_all ||
2207 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2208 printf("%s=", name);
2209
2210 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2211 const char *s;
2212
2213 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2214 dbus_message_iter_get_basic(&sub, &s);
2215 printf("%s%s", space ? " " : "", s);
2216
2217 space = true;
2218 dbus_message_iter_next(&sub);
2219 }
2220
2221 puts("");
2222 }
2223
ebf57b80 2224 return 0;
582a507f 2225
82c121a4
LP		 2226 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2227 DBusMessageIter sub;
2228
2229 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 2230 if (arg_all ||
2231 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2232 printf("%s=", name);
2233
2234 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2235 uint8_t u;
ebf57b80 2236
82c121a4
LP		 2237 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2238 dbus_message_iter_get_basic(&sub, &u);
2239 printf("%02x", u);
2240
2241 dbus_message_iter_next(&sub);
2242 }
2243
2244 puts("");
2245 }
2246
2247 return 0;
582a507f 2248
ebf57b80
LP		 2249 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2250 DBusMessageIter sub, sub2;
2251
2252 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 2253 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2254 const char *type, *path;
2255
2256 dbus_message_iter_recurse(&sub, &sub2);
2257
2258 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2259 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2260 printf("%s=%s\n", type, path);
2261
2262 dbus_message_iter_next(&sub);
2263 }
2264
707e5e52 2265 return 0;
582a507f 2266
707e5e52
LP		 2267 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2268 DBusMessageIter sub, sub2;
2269
2270 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 2271 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2272 const char *base;
2273 uint64_t value, next_elapse;
2274
2275 dbus_message_iter_recurse(&sub, &sub2);
2276
2277 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2278 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 2279 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2280 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2281
2282 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 2283 base,
552e4331
LP		 2284 format_timespan(timespan1, sizeof(timespan1), value),
2285 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2286 }
fe68089d
LP		 2287
2288 dbus_message_iter_next(&sub);
2289 }
2290
2291 return 0;
fe68089d 2292
582a507f
LP		 2293 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2294 DBusMessageIter sub;
fe68089d
LP		 2295
2296 dbus_message_iter_recurse(iter, &sub);
fe68089d 2297 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 2298 ExecStatusInfo info;
fe68089d 2299
582a507f
LP		 2300 zero(info);
2301 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 2302 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 2303 char *t;
2304
2305 t = strv_join(info.argv, " ");
2306
b708e7ce 2307 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		 2308 name,
2309 strna(info.path),
2310 strna(t),
b708e7ce 2311 yes_no(info.ignore),
582a507f
LP		 2312 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2313 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2314 (unsigned) info. pid,
2315 sigchld_code_to_string(info.code),
2316 info.status,
2317 info.code == CLD_EXITED ? "" : "/",
2318 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 2319
582a507f 2320 free(t);
fe68089d
LP		 2321 }
2322
582a507f
LP		 2323 free(info.path);
2324 strv_free(info.argv);
707e5e52
LP		 2325
2326 dbus_message_iter_next(&sub);
2327 }
2328
48220598
LP		 2329 return 0;
2330 }
2331
2332 break;
2333 }
2334
2335 if (arg_all)
2336 printf("%s=[unprintable]\n", name);
2337
2338 return 0;
2339}
2340
61cbdc4b 2341static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 2342 DBusMessage *m = NULL, *reply = NULL;
2343 const char *interface = "";
2344 int r;
2345 DBusError error;
2346 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 2347 UnitStatusInfo info;
582a507f 2348 ExecStatusInfo *p;
48220598
LP		 2349
2350 assert(bus);
2351 assert(path);
61cbdc4b 2352 assert(new_line);
48220598 2353
61cbdc4b 2354 zero(info);
48220598
LP		 2355 dbus_error_init(&error);
2356
2357 if (!(m = dbus_message_new_method_call(
2358 "org.freedesktop.systemd1",
2359 path,
2360 "org.freedesktop.DBus.Properties",
2361 "GetAll"))) {
2362 log_error("Could not allocate message.");
2363 r = -ENOMEM;
2364 goto finish;
2365 }
2366
2367 if (!dbus_message_append_args(m,
2368 DBUS_TYPE_STRING, &interface,
2369 DBUS_TYPE_INVALID)) {
2370 log_error("Could not append arguments to message.");
2371 r = -ENOMEM;
2372 goto finish;
2373 }
2374
2375 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2376 log_error("Failed to issue method call: %s", bus_error_message(&error));
48220598
LP		 2377 r = -EIO;
2378 goto finish;
2379 }
2380
2381 if (!dbus_message_iter_init(reply, &iter) ||
2382 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2383 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2384 log_error("Failed to parse reply.");
2385 r = -EIO;
2386 goto finish;
2387 }
2388
2389 dbus_message_iter_recurse(&iter, &sub);
2390
61cbdc4b
LP		 2391 if (*new_line)
2392 printf("\n");
2393
2394 *new_line = true;
2395
48220598
LP		 2396 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2397 const char *name;
2398
2399 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2400 log_error("Failed to parse reply.");
2401 r = -EIO;
2402 goto finish;
2403 }
2404
2405 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2406
48220598
LP		 2407 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2408 log_error("Failed to parse reply.");
2409 r = -EIO;
2410 goto finish;
2411 }
2412
2413 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2414 log_error("Failed to parse reply.");
2415 r = -EIO;
2416 goto finish;
2417 }
2418
2419 dbus_message_iter_recurse(&sub2, &sub3);
2420
61cbdc4b
LP		 2421 if (show_properties)
2422 r = print_property(name, &sub3);
2423 else
2424 r = status_property(name, &sub3, &info);
2425
2426 if (r < 0) {
48220598
LP		 2427 log_error("Failed to parse reply.");
2428 r = -EIO;
2429 goto finish;
2430 }
2431
2432 dbus_message_iter_next(&sub);
2433 }
2434
f1e36d67
LP		 2435 r = 0;
2436
22f4096c
LP		 2437 if (!show_properties)
2438 print_status_info(&info);
f1e36d67 2439
22f4096c
LP		 2440 if (!streq_ptr(info.active_state, "active") &&
2441 !streq_ptr(info.active_state, "reloading"))
2442 /* According to LSB: "program not running" */
2443 r = 3;
61cbdc4b 2444
582a507f
LP		 2445 while ((p = info.exec)) {
2446 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2447 exec_status_info_free(p);
2448 }
2449
48220598
LP		 2450finish:
2451 if (m)
2452 dbus_message_unref(m);
2453
2454 if (reply)
2455 dbus_message_unref(reply);
2456
2457 dbus_error_free(&error);
2458
2459 return r;
2460}
2461
2462static int show(DBusConnection *bus, char **args, unsigned n) {
2463 DBusMessage *m = NULL, *reply = NULL;
22f4096c 2464 int r, ret = 0;
48220598
LP		 2465 DBusError error;
2466 unsigned i;
61cbdc4b 2467 bool show_properties, new_line = false;
48220598
LP		 2468
2469 assert(bus);
2470 assert(args);
2471
2472 dbus_error_init(&error);
2473
61cbdc4b
LP		 2474 show_properties = !streq(args[0], "status");
2475
2476 if (show_properties && n <= 1) {
48220598
LP		 2477 /* If not argument is specified inspect the manager
2478 * itself */
2479
22f4096c 2480 ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2481 goto finish;
2482 }
2483
2484 for (i = 1; i < n; i++) {
2485 const char *path = NULL;
2486 uint32_t id;
2487
598b557b
LP		 2488 if (safe_atou32(args[i], &id) < 0) {
2489
2490 /* Interpret as unit name */
48220598
LP		 2491
2492 if (!(m = dbus_message_new_method_call(
2493 "org.freedesktop.systemd1",
2494 "/org/freedesktop/systemd1",
2495 "org.freedesktop.systemd1.Manager",
e87d1818 2496 "LoadUnit"))) {
48220598 2497 log_error("Could not allocate message.");
22f4096c 2498 ret = -ENOMEM;
48220598
LP		 2499 goto finish;
2500 }
2501
2502 if (!dbus_message_append_args(m,
2503 DBUS_TYPE_STRING, &args[i],
2504 DBUS_TYPE_INVALID)) {
2505 log_error("Could not append arguments to message.");
22f4096c 2506 ret = -ENOMEM;
48220598
LP		 2507 goto finish;
2508 }
2509
ed2d7a44
LP		 2510 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2511
2512 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
4cf5d675 2513 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2514 ret = -EIO;
ed2d7a44
LP		 2515 goto finish;
2516 }
2517
2518 dbus_error_free(&error);
2519
2520 dbus_message_unref(m);
2521 if (!(m = dbus_message_new_method_call(
2522 "org.freedesktop.systemd1",
2523 "/org/freedesktop/systemd1",
2524 "org.freedesktop.systemd1.Manager",
2525 "GetUnit"))) {
2526 log_error("Could not allocate message.");
22f4096c 2527 ret = -ENOMEM;
ed2d7a44
LP		 2528 goto finish;
2529 }
2530
2531 if (!dbus_message_append_args(m,
2532 DBUS_TYPE_STRING, &args[i],
2533 DBUS_TYPE_INVALID)) {
2534 log_error("Could not append arguments to message.");
22f4096c 2535 ret = -ENOMEM;
ed2d7a44
LP		 2536 goto finish;
2537 }
2538
2539 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2540 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c
LP		 2541
2542 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2543 ret = 4; /* According to LSB: "program or service status is unknown" */
2544 else
2545 ret = -EIO;
ed2d7a44
LP		 2546 goto finish;
2547 }
2548 }
2549
598b557b
LP		 2550 } else if (show_properties) {
2551
2552 /* Interpret as job id */
48220598
LP		 2553
2554 if (!(m = dbus_message_new_method_call(
2555 "org.freedesktop.systemd1",
2556 "/org/freedesktop/systemd1",
2557 "org.freedesktop.systemd1.Manager",
2558 "GetJob"))) {
2559 log_error("Could not allocate message.");
22f4096c 2560 ret = -ENOMEM;
48220598
LP		 2561 goto finish;
2562 }
2563
2564 if (!dbus_message_append_args(m,
2565 DBUS_TYPE_UINT32, &id,
2566 DBUS_TYPE_INVALID)) {
2567 log_error("Could not append arguments to message.");
22f4096c 2568 ret = -ENOMEM;
48220598
LP		 2569 goto finish;
2570 }
48220598 2571
598b557b 2572 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2573 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2574 ret = -EIO;
598b557b
LP		 2575 goto finish;
2576 }
2577 } else {
2578
2579 /* Interpret as PID */
2580
2581 if (!(m = dbus_message_new_method_call(
2582 "org.freedesktop.systemd1",
2583 "/org/freedesktop/systemd1",
2584 "org.freedesktop.systemd1.Manager",
2585 "GetUnitByPID"))) {
2586 log_error("Could not allocate message.");
22f4096c 2587 ret = -ENOMEM;
598b557b
LP		 2588 goto finish;
2589 }
2590
2591 if (!dbus_message_append_args(m,
2592 DBUS_TYPE_UINT32, &id,
2593 DBUS_TYPE_INVALID)) {
2594 log_error("Could not append arguments to message.");
22f4096c 2595 ret = -ENOMEM;
598b557b
LP		 2596 goto finish;
2597 }
2598
ed2d7a44 2599 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2600 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2601 ret = -EIO;
ed2d7a44
LP		 2602 goto finish;
2603 }
48220598
LP		 2604 }
2605
2606 if (!dbus_message_get_args(reply, &error,
2607 DBUS_TYPE_OBJECT_PATH, &path,
2608 DBUS_TYPE_INVALID)) {
4cf5d675 2609 log_error("Failed to parse reply: %s", bus_error_message(&error));
22f4096c 2610 ret = -EIO;
48220598
LP		 2611 goto finish;
2612 }
2613
22f4096c
LP		 2614 if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
2615 ret = r;
48220598
LP		 2616
2617 dbus_message_unref(m);
2618 dbus_message_unref(reply);
2619 m = reply = NULL;
2620 }
2621
48220598
LP		 2622finish:
2623 if (m)
2624 dbus_message_unref(m);
2625
2626 if (reply)
2627 dbus_message_unref(reply);
2628
2629 dbus_error_free(&error);
2630
22f4096c 2631 return ret;
0183528f
LP		 2632}
2633
7e4249b9
LP		 2634static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2635 DBusError error;
2636 DBusMessage *m = NULL, *reply = NULL;
2637
2638 assert(connection);
2639 assert(message);
2640
2641 dbus_error_init(&error);
2642
54165a39
LP		 2643 log_debug("Got D-Bus request: %s.%s() on %s",
2644 dbus_message_get_interface(message),
2645 dbus_message_get_member(message),
2646 dbus_message_get_path(message));
7e4249b9
LP		 2647
2648 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2649 log_error("Warning! D-Bus connection terminated.");
2650 dbus_connection_close(connection);
2651
2652 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2653 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2654 const char *id, *path;
2655
2656 if (!dbus_message_get_args(message, &error,
2657 DBUS_TYPE_STRING, &id,
2658 DBUS_TYPE_OBJECT_PATH, &path,
2659 DBUS_TYPE_INVALID))
4cf5d675 2660 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2661 else if (streq(dbus_message_get_member(message), "UnitNew"))
2662 printf("Unit %s added.\n", id);
2663 else
2664 printf("Unit %s removed.\n", id);
2665
2666 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2667 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2668 uint32_t id;
2669 const char *path;
2670
2671 if (!dbus_message_get_args(message, &error,
2672 DBUS_TYPE_UINT32, &id,
2673 DBUS_TYPE_OBJECT_PATH, &path,
2674 DBUS_TYPE_INVALID))
4cf5d675 2675 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2676 else if (streq(dbus_message_get_member(message), "JobNew"))
2677 printf("Job %u added.\n", id);
2678 else
2679 printf("Job %u removed.\n", id);
2680
2681
c4e2ceae 2682 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
7e4249b9
LP		 2683
2684 const char *path, *interface, *property = "Id";
2685 DBusMessageIter iter, sub;
2686
2687 path = dbus_message_get_path(message);
c4e2ceae
LP		 2688
2689 if (!dbus_message_get_args(message, &error,
2690 DBUS_TYPE_STRING, &interface,
2691 DBUS_TYPE_INVALID)) {
4cf5d675 2692 log_error("Failed to parse message: %s", bus_error_message(&error));
c4e2ceae
LP		 2693 goto finish;
2694 }
2695
2696 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2697 !streq(interface, "org.freedesktop.systemd1.Unit"))
2698 goto finish;
7e4249b9
LP		 2699
2700 if (!(m = dbus_message_new_method_call(
2701 "org.freedesktop.systemd1",
2702 path,
2703 "org.freedesktop.DBus.Properties",
2704 "Get"))) {
2705 log_error("Could not allocate message.");
2706 goto oom;
2707 }
2708
2709 if (!dbus_message_append_args(m,
2710 DBUS_TYPE_STRING, &interface,
2711 DBUS_TYPE_STRING, &property,
2712 DBUS_TYPE_INVALID)) {
2713 log_error("Could not append arguments to message.");
2714 goto finish;
2715 }
2716
2717 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
4cf5d675 2718 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2719 goto finish;
2720 }
2721
2722 if (!dbus_message_iter_init(reply, &iter) ||
2723 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2724 log_error("Failed to parse reply.");
2725 goto finish;
2726 }
2727
2728 dbus_message_iter_recurse(&iter, &sub);
2729
2730 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2731 const char *id;
2732
2733 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2734 log_error("Failed to parse reply.");
2735 goto finish;
2736 }
2737
2738 dbus_message_iter_get_basic(&sub, &id);
2739 printf("Unit %s changed.\n", id);
2740 } else {
2741 uint32_t id;
2742
2743 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2744 log_error("Failed to parse reply.");
2745 goto finish;
2746 }
2747
2748 dbus_message_iter_get_basic(&sub, &id);
2749 printf("Job %u changed.\n", id);
2750 }
2751 }
2752
2753finish:
2754 if (m)
2755 dbus_message_unref(m);
2756
2757 if (reply)
2758 dbus_message_unref(reply);
2759
2760 dbus_error_free(&error);
2761 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2762
2763oom:
2764 if (m)
2765 dbus_message_unref(m);
2766
2767 if (reply)
2768 dbus_message_unref(reply);
2769
2770 dbus_error_free(&error);
2771 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2772}
2773
2774static int monitor(DBusConnection *bus, char **args, unsigned n) {
2775 DBusMessage *m = NULL, *reply = NULL;
2776 DBusError error;
2777 int r;
2778
2779 dbus_error_init(&error);
2780
f4579ce7
LP		 2781 if (!private_bus) {
2782 dbus_bus_add_match(bus,
2783 "type='signal',"
2784 "sender='org.freedesktop.systemd1',"
2785 "interface='org.freedesktop.systemd1.Manager',"
2786 "path='/org/freedesktop/systemd1'",
2787 &error);
7e4249b9 2788
f4579ce7 2789 if (dbus_error_is_set(&error)) {
4cf5d675 2790 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2791 r = -EIO;
2792 goto finish;
2793 }
7e4249b9 2794
f4579ce7
LP		 2795 dbus_bus_add_match(bus,
2796 "type='signal',"
2797 "sender='org.freedesktop.systemd1',"
c4e2ceae
LP		 2798 "interface='org.freedesktop.DBus.Properties',"
2799 "member='PropertiesChanged'",
f4579ce7 2800 &error);
7e4249b9 2801
f4579ce7 2802 if (dbus_error_is_set(&error)) {
4cf5d675 2803 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2804 r = -EIO;
2805 goto finish;
2806 }
7e4249b9
LP		 2807 }
2808
2809 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2810 log_error("Failed to add filter.");
2811 r = -ENOMEM;
2812 goto finish;
2813 }
2814
2815 if (!(m = dbus_message_new_method_call(
2816 "org.freedesktop.systemd1",
2817 "/org/freedesktop/systemd1",
2818 "org.freedesktop.systemd1.Manager",
2819 "Subscribe"))) {
2820 log_error("Could not allocate message.");
2821 r = -ENOMEM;
2822 goto finish;
2823 }
2824
2825 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2826 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2827 r = -EIO;
2828 goto finish;
2829 }
2830
2831 while (dbus_connection_read_write_dispatch(bus, -1))
2832 ;
2833
2834 r = 0;
2835
2836finish:
2837
2838 /* This is slightly dirty, since we don't undo the filter or the matches. */
2839
2840 if (m)
2841 dbus_message_unref(m);
2842
2843 if (reply)
2844 dbus_message_unref(reply);
2845
2846 dbus_error_free(&error);
2847
2848 return r;
2849}
2850
2851static int dump(DBusConnection *bus, char **args, unsigned n) {
2852 DBusMessage *m = NULL, *reply = NULL;
2853 DBusError error;
2854 int r;
2855 const char *text;
2856
2857 dbus_error_init(&error);
2858
2859 if (!(m = dbus_message_new_method_call(
2860 "org.freedesktop.systemd1",
2861 "/org/freedesktop/systemd1",
2862 "org.freedesktop.systemd1.Manager",
2863 "Dump"))) {
2864 log_error("Could not allocate message.");
2865 return -ENOMEM;
2866 }
2867
2868 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2869 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2870 r = -EIO;
2871 goto finish;
2872 }
2873
2874 if (!dbus_message_get_args(reply, &error,
2875 DBUS_TYPE_STRING, &text,
2876 DBUS_TYPE_INVALID)) {
4cf5d675 2877 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2878 r = -EIO;
2879 goto finish;
2880 }
2881
2882 fputs(text, stdout);
2883
2884 r = 0;
2885
2886finish:
2887 if (m)
2888 dbus_message_unref(m);
2889
2890 if (reply)
2891 dbus_message_unref(reply);
2892
2893 dbus_error_free(&error);
2894
2895 return r;
2896}
2897
2898static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2899 DBusMessage *m = NULL, *reply = NULL;
2900 DBusError error;
2901 int r;
2902 const char *name = "", *path, *id;
2903 dbus_bool_t cleanup = FALSE;
2904 DBusMessageIter iter, sub;
2905 const char
2906 *interface = "org.freedesktop.systemd1.Unit",
2907 *property = "Id";
2908
2909 dbus_error_init(&error);
2910
2911 if (!(m = dbus_message_new_method_call(
2912 "org.freedesktop.systemd1",
2913 "/org/freedesktop/systemd1",
2914 "org.freedesktop.systemd1.Manager",
2915 "CreateSnapshot"))) {
2916 log_error("Could not allocate message.");
2917 return -ENOMEM;
2918 }
2919
2920 if (n > 1)
2921 name = args[1];
2922
2923 if (!dbus_message_append_args(m,
2924 DBUS_TYPE_STRING, &name,
2925 DBUS_TYPE_BOOLEAN, &cleanup,
2926 DBUS_TYPE_INVALID)) {
2927 log_error("Could not append arguments to message.");
2928 r = -ENOMEM;
2929 goto finish;
2930 }
2931
2932 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2933 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2934 r = -EIO;
2935 goto finish;
2936 }
2937
2938 if (!dbus_message_get_args(reply, &error,
2939 DBUS_TYPE_OBJECT_PATH, &path,
2940 DBUS_TYPE_INVALID)) {
4cf5d675 2941 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 2942 r = -EIO;
2943 goto finish;
2944 }
2945
2946 dbus_message_unref(m);
2947 if (!(m = dbus_message_new_method_call(
2948 "org.freedesktop.systemd1",
2949 path,
2950 "org.freedesktop.DBus.Properties",
2951 "Get"))) {
2952 log_error("Could not allocate message.");
2953 return -ENOMEM;
2954 }
2955
2956 if (!dbus_message_append_args(m,
2957 DBUS_TYPE_STRING, &interface,
2958 DBUS_TYPE_STRING, &property,
2959 DBUS_TYPE_INVALID)) {
2960 log_error("Could not append arguments to message.");
2961 r = -ENOMEM;
2962 goto finish;
2963 }
2964
2965 dbus_message_unref(reply);
2966 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2967 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2968 r = -EIO;
2969 goto finish;
2970 }
2971
2972 if (!dbus_message_iter_init(reply, &iter) ||
2973 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2974 log_error("Failed to parse reply.");
2975 r = -EIO;
2976 goto finish;
2977 }
2978
2979 dbus_message_iter_recurse(&iter, &sub);
2980
2981 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2982 log_error("Failed to parse reply.");
2983 r = -EIO;
2984 goto finish;
2985 }
2986
2987 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 2988
2989 if (!arg_quiet)
2990 puts(id);
7e4249b9
LP		 2991 r = 0;
2992
2993finish:
2994 if (m)
2995 dbus_message_unref(m);
2996
2997 if (reply)
2998 dbus_message_unref(reply);
2999
3000 dbus_error_free(&error);
3001
3002 return r;
3003}
3004
6759e7a7
LP		 3005static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
3006 DBusMessage *m = NULL, *reply = NULL;
3007 int r;
3008 DBusError error;
3009 unsigned i;
3010
3011 assert(bus);
3012 assert(args);
3013
3014 dbus_error_init(&error);
3015
3016 for (i = 1; i < n; i++) {
3017 const char *path = NULL;
3018
3019 if (!(m = dbus_message_new_method_call(
3020 "org.freedesktop.systemd1",
3021 "/org/freedesktop/systemd1",
3022 "org.freedesktop.systemd1.Manager",
3023 "GetUnit"))) {
3024 log_error("Could not allocate message.");
3025 r = -ENOMEM;
3026 goto finish;
3027 }
3028
3029 if (!dbus_message_append_args(m,
3030 DBUS_TYPE_STRING, &args[i],
3031 DBUS_TYPE_INVALID)) {
3032 log_error("Could not append arguments to message.");
3033 r = -ENOMEM;
3034 goto finish;
3035 }
3036
3037 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3038 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3039 r = -EIO;
3040 goto finish;
3041 }
3042
3043 if (!dbus_message_get_args(reply, &error,
3044 DBUS_TYPE_OBJECT_PATH, &path,
3045 DBUS_TYPE_INVALID)) {
4cf5d675 3046 log_error("Failed to parse reply: %s", bus_error_message(&error));
6759e7a7
LP		 3047 r = -EIO;
3048 goto finish;
3049 }
3050
3051 dbus_message_unref(m);
3052 if (!(m = dbus_message_new_method_call(
3053 "org.freedesktop.systemd1",
3054 path,
3055 "org.freedesktop.systemd1.Snapshot",
3056 "Remove"))) {
3057 log_error("Could not allocate message.");
3058 r = -ENOMEM;
3059 goto finish;
3060 }
3061
3062 dbus_message_unref(reply);
3063 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3064 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3065 r = -EIO;
3066 goto finish;
3067 }
3068
3069 dbus_message_unref(m);
3070 dbus_message_unref(reply);
3071 m = reply = NULL;
3072 }
3073
3074 r = 0;
3075
3076finish:
3077 if (m)
3078 dbus_message_unref(m);
3079
3080 if (reply)
3081 dbus_message_unref(reply);
3082
3083 dbus_error_free(&error);
3084
3085 return r;
3086}
3087
ee5762e3 3088static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 3089 DBusMessage *m = NULL, *reply = NULL;
3090 DBusError error;
3091 int r;
3092 const char *method;
3093
3094 dbus_error_init(&error);
3095
e4b61340
LP		 3096 if (arg_action == ACTION_RELOAD)
3097 method = "Reload";
3098 else if (arg_action == ACTION_REEXEC)
3099 method = "Reexecute";
3100 else {
3101 assert(arg_action == ACTION_SYSTEMCTL);
3102
3103 method =
20b09ca7
LP		 3104 streq(args[0], "clear-jobs") ||
3105 streq(args[0], "cancel") ? "ClearJobs" :
3106 streq(args[0], "daemon-reexec") ? "Reexecute" :
3107 streq(args[0], "reset-failed") ? "ResetFailed" :
3108 streq(args[0], "halt") ? "Halt" :
3109 streq(args[0], "poweroff") ? "PowerOff" :
3110 streq(args[0], "reboot") ? "Reboot" :
3111 streq(args[0], "kexec") ? "KExec" :
3112 streq(args[0], "exit") ? "Exit" :
3113 /* "daemon-reload" */ "Reload";
e4b61340 3114 }
7e4249b9
LP		 3115
3116 if (!(m = dbus_message_new_method_call(
3117 "org.freedesktop.systemd1",
3118 "/org/freedesktop/systemd1",
3119 "org.freedesktop.systemd1.Manager",
3120 method))) {
3121 log_error("Could not allocate message.");
3122 return -ENOMEM;
3123 }
3124
3125 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 3126
3127 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3128 /* There's always a fallback possible for
3129 * legacy actions. */
aabd9b11 3130 r = -EADDRNOTAVAIL;
e4b61340
LP		 3131 goto finish;
3132 }
3133
4cf5d675 3134 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3135 r = -EIO;
3136 goto finish;
3137 }
3138
aabd9b11 3139 r = 0;
7e4249b9
LP		 3140
3141finish:
3142 if (m)
3143 dbus_message_unref(m);
3144
3145 if (reply)
3146 dbus_message_unref(reply);
3147
3148 dbus_error_free(&error);
3149
3150 return r;
3151}
3152
fdf20a31 3153static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
5632e374
LP		 3154 DBusMessage *m = NULL, *reply = NULL;
3155 unsigned i;
3156 int r;
3157 DBusError error;
3158
3159 assert(bus);
3160 dbus_error_init(&error);
3161
3162 if (n <= 1)
ee5762e3 3163 return daemon_reload(bus, args, n);
5632e374
LP		 3164
3165 for (i = 1; i < n; i++) {
3166
3167 if (!(m = dbus_message_new_method_call(
3168 "org.freedesktop.systemd1",
3169 "/org/freedesktop/systemd1",
3170 "org.freedesktop.systemd1.Manager",
fdf20a31 3171 "ResetFailedUnit"))) {
5632e374
LP		 3172 log_error("Could not allocate message.");
3173 r = -ENOMEM;
3174 goto finish;
3175 }
3176
3177 if (!dbus_message_append_args(m,
3178 DBUS_TYPE_STRING, args + i,
3179 DBUS_TYPE_INVALID)) {
3180 log_error("Could not append arguments to message.");
3181 r = -ENOMEM;
3182 goto finish;
3183 }
3184
3185 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3186 log_error("Failed to issue method call: %s", bus_error_message(&error));
5632e374
LP		 3187 r = -EIO;
3188 goto finish;
3189 }
3190
3191 dbus_message_unref(m);
3192 dbus_message_unref(reply);
3193 m = reply = NULL;
3194 }
3195
3196 r = 0;
3197
3198finish:
3199 if (m)
3200 dbus_message_unref(m);
3201
3202 if (reply)
3203 dbus_message_unref(reply);
3204
3205 dbus_error_free(&error);
3206
3207 return r;
3208}
3209
7e4249b9
LP		 3210static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3211 DBusMessage *m = NULL, *reply = NULL;
3212 DBusError error;
3213 DBusMessageIter iter, sub, sub2;
3214 int r;
3215 const char
3216 *interface = "org.freedesktop.systemd1.Manager",
3217 *property = "Environment";
3218
3219 dbus_error_init(&error);
3220
3221 if (!(m = dbus_message_new_method_call(
3222 "org.freedesktop.systemd1",
3223 "/org/freedesktop/systemd1",
3224 "org.freedesktop.DBus.Properties",
3225 "Get"))) {
3226 log_error("Could not allocate message.");
3227 return -ENOMEM;
3228 }
3229
3230 if (!dbus_message_append_args(m,
3231 DBUS_TYPE_STRING, &interface,
3232 DBUS_TYPE_STRING, &property,
3233 DBUS_TYPE_INVALID)) {
3234 log_error("Could not append arguments to message.");
3235 r = -ENOMEM;
3236 goto finish;
3237 }
3238
3239 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3240 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3241 r = -EIO;
3242 goto finish;
3243 }
3244
3245 if (!dbus_message_iter_init(reply, &iter) ||
3246 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3247 log_error("Failed to parse reply.");
3248 r = -EIO;
3249 goto finish;
3250 }
3251
3252 dbus_message_iter_recurse(&iter, &sub);
3253
3254 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3255 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3256 log_error("Failed to parse reply.");
3257 r = -EIO;
3258 goto finish;
3259 }
3260
3261 dbus_message_iter_recurse(&sub, &sub2);
3262
3263 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3264 const char *text;
3265
3266 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3267 log_error("Failed to parse reply.");
3268 r = -EIO;
3269 goto finish;
3270 }
3271
3272 dbus_message_iter_get_basic(&sub2, &text);
3273 printf("%s\n", text);
3274
3275 dbus_message_iter_next(&sub2);
3276 }
3277
3278 r = 0;
3279
3280finish:
3281 if (m)
3282 dbus_message_unref(m);
3283
3284 if (reply)
3285 dbus_message_unref(reply);
3286
3287 dbus_error_free(&error);
3288
3289 return r;
3290}
3291
3292static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3293 DBusMessage *m = NULL, *reply = NULL;
3294 DBusError error;
3295 int r;
3296 const char *method;
3297 DBusMessageIter iter, sub;
3298 unsigned i;
3299
3300 dbus_error_init(&error);
3301
3302 method = streq(args[0], "set-environment")
3303 ? "SetEnvironment"
3304 : "UnsetEnvironment";
3305
3306 if (!(m = dbus_message_new_method_call(
3307 "org.freedesktop.systemd1",
3308 "/org/freedesktop/systemd1",
3309 "org.freedesktop.systemd1.Manager",
3310 method))) {
3311
3312 log_error("Could not allocate message.");
3313 return -ENOMEM;
3314 }
3315
3316 dbus_message_iter_init_append(m, &iter);
3317
3318 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3319 log_error("Could not append arguments to message.");
3320 r = -ENOMEM;
3321 goto finish;
3322 }
3323
3324 for (i = 1; i < n; i++)
3325 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3326 log_error("Could not append arguments to message.");
3327 r = -ENOMEM;
3328 goto finish;
3329 }
3330
3331 if (!dbus_message_iter_close_container(&iter, &sub)) {
3332 log_error("Could not append arguments to message.");
3333 r = -ENOMEM;
3334 goto finish;
3335 }
3336
3337 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3338 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3339 r = -EIO;
3340 goto finish;
3341 }
3342
3343 r = 0;
3344
3345finish:
3346 if (m)
3347 dbus_message_unref(m);
3348
3349 if (reply)
3350 dbus_message_unref(reply);
3351
3352 dbus_error_free(&error);
3353
3354 return r;
3355}
3356
ee5762e3
LP		 3357typedef struct {
3358 char *name;
3359 char *path;
3360
3361 char **aliases;
3362 char **wanted_by;
3363} InstallInfo;
3364
3365static Hashmap *will_install = NULL, *have_installed = NULL;
3366static Set *remove_symlinks_to = NULL;
560d8f23 3367static unsigned n_symlinks = 0;
ee5762e3
LP		 3368
3369static void install_info_free(InstallInfo *i) {
3370 assert(i);
3371
3372 free(i->name);
3373 free(i->path);
3374 strv_free(i->aliases);
3375 strv_free(i->wanted_by);
3376 free(i);
3377}
3378
3379static void install_info_hashmap_free(Hashmap *m) {
3380 InstallInfo *i;
3381
3382 while ((i = hashmap_steal_first(m)))
3383 install_info_free(i);
3384
3385 hashmap_free(m);
3386}
3387
ee5762e3
LP		 3388static int install_info_add(const char *name) {
3389 InstallInfo *i;
3390 int r;
3391
3392 assert(will_install);
3393
b9c0d441 3394 if (!unit_name_is_valid_no_type(name, true)) {
71fad675 3395 log_warning("Unit name %s is not a valid unit name.", name);
ee5762e3 3396 return -EINVAL;
71fad675 3397 }
ee5762e3
LP		 3398
3399 if (hashmap_get(have_installed, name) ||
3400 hashmap_get(will_install, name))
3401 return 0;
3402
3403 if (!(i = new0(InstallInfo, 1))) {
3404 r = -ENOMEM;
3405 goto fail;
3406 }
3407
3408 if (!(i->name = strdup(name))) {
3409 r = -ENOMEM;
3410 goto fail;
3411 }
3412
3413 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3414 goto fail;
3415
3416 return 0;
3417
3418fail:
3419 if (i)
3420 install_info_free(i);
3421
3422 return r;
3423}
3424
3425static int config_parse_also(
3426 const char *filename,
3427 unsigned line,
3428 const char *section,
3429 const char *lvalue,
3430 const char *rvalue,
3431 void *data,
3432 void *userdata) {
3433
3434 char *w;
3435 size_t l;
3436 char *state;
3437
3438 assert(filename);
3439 assert(lvalue);
3440 assert(rvalue);
3441
3442 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3443 char *n;
3444 int r;
3445
3446 if (!(n = strndup(w, l)))
3447 return -ENOMEM;
3448
71fad675
LP		 3449 if ((r = install_info_add(n)) < 0) {
3450 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3451 free(n);
ee5762e3 3452 return r;
71fad675
LP		 3453 }
3454
3455 free(n);
ee5762e3
LP		 3456 }
3457
3458 return 0;
3459}
3460
3461static int mark_symlink_for_removal(const char *p) {
3462 char *n;
3463 int r;
3464
3465 assert(p);
3466 assert(path_is_absolute(p));
3467
3468 if (!remove_symlinks_to)
3469 return 0;
3470
3471 if (!(n = strdup(p)))
3472 return -ENOMEM;
3473
3474 path_kill_slashes(n);
3475
3476 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3477 free(n);
3478 return r == -EEXIST ? 0 : r;
3479 }
3480
3481 return 0;
3482}
3483
3484static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3485 int r = 0;
3486 DIR *d;
3487 struct dirent *de;
3488
3489 assert(fd >= 0);
3490 assert(root);
3491 assert(deleted);
3492
3493 if (!(d = fdopendir(fd))) {
3494 close_nointr_nofail(fd);
3495 return -errno;
3496 }
3497
3498 rewinddir(d);
3499
3500 while ((de = readdir(d))) {
3501 bool is_dir = false, is_link = false;
3502
3503 if (ignore_file(de->d_name))
3504 continue;
3505
3506 if (de->d_type == DT_LNK)
3507 is_link = true;
3508 else if (de->d_type == DT_DIR)
3509 is_dir = true;
3510 else if (de->d_type == DT_UNKNOWN) {
3511 struct stat st;
3512
3513 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3514 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3515
3516 if (r == 0)
3517 r = -errno;
3518 continue;
3519 }
3520
3521 is_link = S_ISLNK(st.st_mode);
3522 is_dir = S_ISDIR(st.st_mode);
3523 } else
3524 continue;
3525
3526 if (is_dir) {
3527 int nfd, q;
3528 char *p;
3529
3530 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3531 log_error("Failed to open %s/%s: %m", root, de->d_name);
3532
3533 if (r == 0)
3534 r = -errno;
3535 continue;
3536 }
3537
3538 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3539 log_error("Failed to allocate directory string.");
3540 close_nointr_nofail(nfd);
3541 r = -ENOMEM;
3542 break;
3543 }
3544
3545 /* This will close nfd, regardless whether it succeeds or not */
3546 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3547 free(p);
3548
3549 if (r == 0)
e364ad06 3550 r = q;
ee5762e3
LP		 3551
3552 } else if (is_link) {
3553 char *p, *dest, *c;
3554 int q;
3555
3556 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3557 log_error("Failed to allocate symlink string.");
3558 r = -ENOMEM;
3559 break;
3560 }
3561
3562 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3563 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3564 free(p);
3565
3566 if (r == 0)
3567 r = q;
3568 continue;
3569 }
3570
3571 if ((c = canonicalize_file_name(dest))) {
3572 /* This might fail if the destination
3573 * is already removed */
3574
3575 free(dest);
3576 dest = c;
3577 }
3578
3579 path_kill_slashes(dest);
3580 if (set_get(remove_symlinks_to, dest)) {
3581
3582 if (!arg_quiet)
3583 log_info("rm '%s'", p);
3584
3585 if (unlink(p) < 0) {
3586 log_error("Cannot unlink symlink %s: %m", p);
3587
3588 if (r == 0)
3589 r = -errno;
3590 } else {
3591 rmdir_parents(p, config_path);
3592 path_kill_slashes(p);
3593
3594 if (!set_get(remove_symlinks_to, p)) {
3595
3596 if ((r = mark_symlink_for_removal(p)) < 0) {
3597 if (r == 0)
3598 r = q;
3599 } else
3600 *deleted = true;
3601 }
3602 }
3603 }
3604
3605 free(p);
3606 free(dest);
3607 }
3608 }
3609
3610 closedir(d);
3611
3612 return r;
3613}
3614
3615static int remove_marked_symlinks(const char *config_path) {
3616 int fd, r = 0;
3617 bool deleted;
3618
3619 assert(config_path);
3620
3621 if (set_size(remove_symlinks_to) <= 0)
3622 return 0;
3623
3624 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3625 return -errno;
3626
3627 do {
3628 int q, cfd;
3629 deleted = false;
3630
3631 if ((cfd = dup(fd)) < 0) {
3632 r = -errno;
3633 break;
3634 }
3635
3636 /* This takes possession of cfd and closes it */
3637 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3638 if (r == 0)
3639 r = q;
3640 }
3641 } while (deleted);
3642
3643 close_nointr_nofail(fd);
3644
3645 return r;
3646}
3647
3648static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3649 int r;
3650
3651 assert(old_path);
3652 assert(new_path);
3653 assert(verb);
3654
3655 if (streq(verb, "enable")) {
3656 char *dest;
3657
3658 mkdir_parents(new_path, 0755);
3659
3660 if (symlink(old_path, new_path) >= 0) {
3661
3662 if (!arg_quiet)
3663 log_info("ln -s '%s' '%s'", old_path, new_path);
3664
3665 return 0;
3666 }
3667
3668 if (errno != EEXIST) {
3669 log_error("Cannot link %s to %s: %m", old_path, new_path);
3670 return -errno;
3671 }
3672
3673 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3674
3675 if (errno == EINVAL) {
3676 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3677 return -EEXIST;
3678 }
3679
3680 log_error("readlink() failed: %s", strerror(-r));
3681 return r;
3682 }
3683
3684 if (streq(dest, old_path)) {
3685 free(dest);
3686 return 0;
3687 }
3688
3689 if (!arg_force) {
3690 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3691 free(dest);
3692 return -EEXIST;
3693 }
3694
3695 free(dest);
3696 unlink(new_path);
3697
3698 if (!arg_quiet)
3699 log_info("ln -s '%s' '%s'", old_path, new_path);
3700
3701 if (symlink(old_path, new_path) >= 0)
3702 return 0;
3703
3704 log_error("Cannot link %s to %s: %m", old_path, new_path);
3705 return -errno;
3706
3707 } else if (streq(verb, "disable")) {
3708 char *dest;
3709
3710 if ((r = mark_symlink_for_removal(old_path)) < 0)
3711 return r;
3712
3713 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3714 if (errno == ENOENT)
3715 return 0;
3716
3717 if (errno == EINVAL) {
3718 log_warning("File %s not a symlink, ignoring.", old_path);
3719 return 0;
3720 }
3721
3722 log_error("readlink() failed: %s", strerror(-r));
3723 return r;
3724 }
3725
3726 if (!streq(dest, old_path)) {
3727 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3728 free(dest);
3729 return 0;
3730 }
3731
3732 free(dest);
3733
3734 if ((r = mark_symlink_for_removal(new_path)) < 0)
3735 return r;
3736
3737 if (!arg_quiet)
3738 log_info("rm '%s'", new_path);
3739
3740 if (unlink(new_path) >= 0)
3741 return 0;
3742
3743 log_error("Cannot unlink %s: %m", new_path);
3744 return -errno;
3745
3746 } else if (streq(verb, "is-enabled")) {
3747 char *dest;
3748
3749 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3750
3751 if (errno == ENOENT || errno == EINVAL)
3752 return 0;
3753
3754 log_error("readlink() failed: %s", strerror(-r));
3755 return r;
3756 }
3757
3758 if (streq(dest, old_path)) {
3759 free(dest);
3760 return 1;
3761 }
3762
3763 return 0;
3764 }
3765
3766 assert_not_reached("Unknown action.");
3767}
3768
3769static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3770 char **s;
3771 char *alias_path = NULL;
3772 int r;
3773
3774 assert(verb);
3775 assert(i);
3776 assert(config_path);
3777
3778 STRV_FOREACH(s, i->aliases) {
3779
ee5762e3
LP		 3780 free(alias_path);
3781 if (!(alias_path = path_make_absolute(*s, config_path))) {
3782 log_error("Out of memory");
3783 r = -ENOMEM;
3784 goto finish;
3785 }
3786
3787 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3788 goto finish;
3789
3790 if (streq(verb, "disable"))
3791 rmdir_parents(alias_path, config_path);
3792 }
ee5762e3
LP		 3793 r = 0;
3794
3795finish:
3796 free(alias_path);
3797
3798 return r;
3799}
3800
3801static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3802 char **s;
3803 char *alias_path = NULL;
3804 int r;
3805
3806 assert(verb);
3807 assert(i);
3808 assert(config_path);
3809
3810 STRV_FOREACH(s, i->wanted_by) {
b9c0d441 3811 if (!unit_name_is_valid_no_type(*s, true)) {
ee5762e3
LP		 3812 log_error("Invalid name %s.", *s);
3813 r = -EINVAL;
3814 goto finish;
3815 }
3816
3817 free(alias_path);
3818 alias_path = NULL;
3819
3820 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3821 log_error("Out of memory");
3822 r = -ENOMEM;
3823 goto finish;
3824 }
3825
3826 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3827 goto finish;
3828
3829 if (streq(verb, "disable"))
3830 rmdir_parents(alias_path, config_path);
3831 }
3832
3833 r = 0;
3834
3835finish:
3836 free(alias_path);
3837
3838 return r;
3839}
3840
3841static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3842
3843 const ConfigItem items[] = {
3844 { "Alias", config_parse_strv, &i->aliases, "Install" },
3845 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3846 { "Also", config_parse_also, NULL, "Install" },
3847
3848 { NULL, NULL, NULL, NULL }
3849 };
3850
3851 char **p;
3852 char *filename = NULL;
3853 FILE *f = NULL;
3854 int r;
3855
3856 assert(paths);
3857 assert(i);
3858
3859 STRV_FOREACH(p, paths->unit_path) {
3860 int fd;
3861
3862 if (!(filename = path_make_absolute(i->name, *p))) {
3863 log_error("Out of memory");
3864 return -ENOMEM;
3865 }
3866
3867 /* Ensure that we don't follow symlinks */
3868 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3869 if ((f = fdopen(fd, "re")))
3870 break;
3871
3872 if (errno == ELOOP) {
3873 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3874 free(filename);
3875 return -errno;
3876 }
3877
3878 if (errno != ENOENT) {
3879 log_error("Failed to open %s: %m", filename);
3880 free(filename);
3881 return -errno;
3882 }
3883
3884 free(filename);
3885 filename = NULL;
3886 }
3887
3888 if (!f) {
3889 log_error("Couldn't find %s.", i->name);
3890 return -ENOENT;
3891 }
3892
3893 i->path = filename;
3894
3895 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3896 fclose(f);
3897 return r;
3898 }
3899
560d8f23
LP		 3900 n_symlinks += strv_length(i->aliases);
3901 n_symlinks += strv_length(i->wanted_by);
3902
ee5762e3
LP		 3903 fclose(f);
3904
3905 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3906 return r;
3907
3908 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3909 return r;
3910
3911 if ((r = mark_symlink_for_removal(filename)) < 0)
3912 return r;
3913
3914 if ((r = remove_marked_symlinks(config_path)) < 0)
3915 return r;
3916
3917 return 0;
3918}
3919
3920static char *get_config_path(void) {
3921
3922 if (arg_session && arg_global)
3923 return strdup(SESSION_CONFIG_UNIT_PATH);
3924
3925 if (arg_session) {
3926 char *p;
3927
3928 if (session_config_home(&p) < 0)
3929 return NULL;
3930
3931 return p;
3932 }
3933
3934 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3935}
3936
3937static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3938 DBusError error;
3939 int r;
3940 LookupPaths paths;
3941 char *config_path = NULL;
3942 unsigned j;
3943 InstallInfo *i;
3944 const char *verb = args[0];
3945
3946 dbus_error_init(&error);
3947
3948 zero(paths);
3949 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3950 log_error("Failed to determine lookup paths: %s", strerror(-r));
3951 goto finish;
3952 }
3953
3954 if (!(config_path = get_config_path())) {
3955 log_error("Failed to determine config path");
3956 r = -ENOMEM;
3957 goto finish;
3958 }
3959
3960 will_install = hashmap_new(string_hash_func, string_compare_func);
3961 have_installed = hashmap_new(string_hash_func, string_compare_func);
3962
3963 if (!will_install || !have_installed) {
3964 log_error("Failed to allocate unit sets.");
3965 r = -ENOMEM;
3966 goto finish;
3967 }
3968
3969 if (!arg_defaults && streq(verb, "disable"))
3970 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3971 log_error("Failed to allocate symlink sets.");
3972 r = -ENOMEM;
3973 goto finish;
3974 }
3975
3976 for (j = 1; j < n; j++)
71fad675
LP		 3977 if ((r = install_info_add(args[j])) < 0) {
3978 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
ee5762e3 3979 goto finish;
71fad675 3980 }
ee5762e3
LP		 3981
3982 while ((i = hashmap_first(will_install))) {
3983 int q;
3984
3985 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3986
3987 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3988
3989 if (q < 0) {
3990 if (r == 0)
3991 r = q;
3992 goto finish;
3993 }
3994
3995 /* In test mode and found something */
3996 r = 1;
3997 break;
3998 }
3999 }
4000
4001 if (streq(verb, "is-enabled"))
4002 r = r > 0 ? 0 : -ENOENT;
560d8f23
LP		 4003 else {
4004 if (n_symlinks <= 0)
4005 log_warning("Unit files contain no applicable installation information. Ignoring.");
4006
4007 if (bus &&
4008 /* Don't try to reload anything if the user asked us to not do this */
4009 !arg_no_reload &&
4010 /* Don't try to reload anything when updating a unit globally */
4011 !arg_global &&
4012 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
4013 (arg_session || sd_booted() > 0) &&
4014 /* Don't try to reload anything if we are running in a chroot environment */
4015 (arg_session || running_in_chroot() <= 0) ) {
4016 int q;
ee5762e3 4017
560d8f23
LP		 4018 if ((q = daemon_reload(bus, args, n)) < 0)
4019 r = q;
4020 }
ee5762e3
LP		 4021 }
4022
4023finish:
4024 install_info_hashmap_free(will_install);
4025 install_info_hashmap_free(have_installed);
4026
4027 set_free_free(remove_symlinks_to);
4028
4029 lookup_paths_free(&paths);
4030
4031 free(config_path);
4032
4033 return r;
4034}
4035
e4b61340 4036static int systemctl_help(void) {
7e4249b9 4037
2e33c433 4038 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 4039 "Send control commands to or query the systemd manager.\n\n"
8a0867d6
LP		 4040 " -h --help Show this help\n"
4041 " --version Show package version\n"
4042 " -t --type=TYPE List only units of a particular type\n"
4043 " -p --property=NAME Show only properties by this name\n"
4044 " -a --all Show all units/properties, including dead/empty ones\n"
4045 " --full Don't ellipsize unit names on output\n"
4046 " --fail When queueing a new job, fail if conflicting jobs are\n"
4047 " pending\n"
4048 " -q --quiet Suppress output\n"
4049 " --no-block Do not wait until operation finished\n"
4fbf50b3 4050 " --system Connect to system bus\n"
8a0867d6
LP		 4051 " --session Connect to session bus\n"
4052 " --order When generating graph for dot, show only order\n"
4053 " --require When generating graph for dot, show only requirement\n"
4054 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4055 " --global Enable/disable unit files globally\n"
4056 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4057 " configuration\n"
501fc174
LP		 4058 " --no-ask-password\n"
4059 " Do not ask for system passwords\n"
8a0867d6
LP		 4060 " --kill-mode=MODE How to send signal\n"
4061 " --kill-who=WHO Who to send signal to\n"
4062 " -s --signal=SIGNAL Which signal to send\n"
4063 " -f --force When enabling unit files, override existing symlinks\n"
4064 " When shutting down, execute action immediately\n"
4065 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 4066 "Commands:\n"
4067 " list-units List units\n"
ee5762e3
LP		 4068 " start [NAME...] Start (activate) one or more units\n"
4069 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 4070 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 4071 " restart [NAME...] Start or restart one or more units\n"
4072 " try-restart [NAME...] Restart one or more units if active\n"
4073 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4074 " otherwise start or restart\n"
4075 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4076 " otherwise restart if active\n"
7e4249b9 4077 " isolate [NAME] Start one unit and stop all others\n"
8a0867d6 4078 " kill [NAME...] Send signal to processes of a unit\n"
ee5762e3 4079 " is-active [NAME...] Check whether units are active\n"
75676b72 4080 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 4081 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3 4082 " units/jobs or the manager\n"
fdf20a31
MM		 4083 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4084 " units\n"
ee5762e3
LP		 4085 " enable [NAME...] Enable one or more unit files\n"
4086 " disable [NAME...] Disable one or more unit files\n"
4087 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 4088 " load [NAME...] Load one or more units\n"
4089 " list-jobs List jobs\n"
ee5762e3 4090 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 4091 " monitor Monitor unit/job changes\n"
4092 " dump Dump server status\n"
4445a875 4093 " dot Dump dependency graph for dot(1)\n"
7e4249b9 4094 " snapshot [NAME] Create a snapshot\n"
6759e7a7 4095 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 4096 " daemon-reload Reload systemd manager configuration\n"
4097 " daemon-reexec Reexecute systemd manager\n"
7e4249b9
LP		 4098 " show-environment Dump environment\n"
4099 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5 4100 " unset-environment [NAME...] Unset one or more environment variables\n"
20b09ca7
LP		 4101 " default Enter system default mode\n"
4102 " rescue Enter system rescue mode\n"
4103 " emergency Enter system emergency mode\n"
514f4ef5 4104 " halt Shut down and halt the system\n"
2e33c433 4105 " poweroff Shut down and power-off the system\n"
514f4ef5 4106 " reboot Shut down and reboot the system\n"
20b09ca7
LP		 4107 " kexec Shut down and reboot the system with kexec\n"
4108 " exit Ask for session termination\n",
5b6319dc 4109 program_invocation_short_name);
7e4249b9
LP		 4110
4111 return 0;
4112}
4113
e4b61340
LP		 4114static int halt_help(void) {
4115
2e33c433 4116 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4117 "%s the system.\n\n"
4118 " --help Show this help\n"
4119 " --halt Halt the machine\n"
4120 " -p --poweroff Switch off the machine\n"
4121 " --reboot Reboot the machine\n"
2e33c433
LP		 4122 " -f --force Force immediate halt/power-off/reboot\n"
4123 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 4124 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 4125 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4126 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 4127 program_invocation_short_name,
4128 arg_action == ACTION_REBOOT ? "Reboot" :
4129 arg_action == ACTION_POWEROFF ? "Power off" :
4130 "Halt");
4131
4132 return 0;
4133}
4134
4135static int shutdown_help(void) {
4136
08e4b1c5 4137 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
e4b61340
LP		 4138 "Shut down the system.\n\n"
4139 " --help Show this help\n"
4140 " -H --halt Halt the machine\n"
4141 " -P --poweroff Power-off the machine\n"
4142 " -r --reboot Reboot the machine\n"
4143 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433 4144 " -k Don't halt/power-off/reboot, just send warnings\n"
f6144808 4145 " --no-wall Don't send wall message before halt/power-off/reboot\n"
f6144808 4146 " -c Cancel a pending shutdown\n",
e4b61340
LP		 4147 program_invocation_short_name);
4148
4149 return 0;
4150}
4151
4152static int telinit_help(void) {
4153
2e33c433 4154 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 4155 "Send control commands to the init daemon.\n\n"
4156 " --help Show this help\n"
2e33c433 4157 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 4158 "Commands:\n"
4159 " 0 Power-off the machine\n"
4160 " 6 Reboot the machine\n"
514f4ef5
LP		 4161 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4162 " 1, s, S Enter rescue mode\n"
4163 " q, Q Reload init daemon configuration\n"
4164 " u, U Reexecute init daemon\n",
e4b61340
LP		 4165 program_invocation_short_name);
4166
4167 return 0;
4168}
4169
4170static int runlevel_help(void) {
4171
2e33c433 4172 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4173 "Prints the previous and current runlevel of the init system.\n\n"
4174 " --help Show this help\n",
4175 program_invocation_short_name);
4176
4177 return 0;
4178}
4179
4180static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 4181
4182 enum {
90d473a1 4183 ARG_FAIL = 0x100,
35df8f27 4184 ARG_VERSION,
7e4249b9
LP		 4185 ARG_SESSION,
4186 ARG_SYSTEM,
ee5762e3 4187 ARG_GLOBAL,
6e905d93 4188 ARG_NO_BLOCK,
4445a875
LP		 4189 ARG_NO_WALL,
4190 ARG_ORDER,
8fe914ec 4191 ARG_REQUIRE,
ee5762e3 4192 ARG_FULL,
ee5762e3 4193 ARG_NO_RELOAD,
8a0867d6
LP		 4194 ARG_DEFAULTS,
4195 ARG_KILL_MODE,
501fc174
LP		 4196 ARG_KILL_WHO,
4197 ARG_NO_ASK_PASSWORD
7e4249b9
LP		 4198 };
4199
4200 static const struct option options[] = {
ee5762e3 4201 { "help", no_argument, NULL, 'h' },
35df8f27 4202 { "version", no_argument, NULL, ARG_VERSION },
ee5762e3
LP		 4203 { "type", required_argument, NULL, 't' },
4204 { "property", required_argument, NULL, 'p' },
4205 { "all", no_argument, NULL, 'a' },
4206 { "full", no_argument, NULL, ARG_FULL },
4207 { "fail", no_argument, NULL, ARG_FAIL },
4208 { "session", no_argument, NULL, ARG_SESSION },
4209 { "system", no_argument, NULL, ARG_SYSTEM },
4210 { "global", no_argument, NULL, ARG_GLOBAL },
4211 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4212 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4213 { "quiet", no_argument, NULL, 'q' },
4214 { "order", no_argument, NULL, ARG_ORDER },
4215 { "require", no_argument, NULL, ARG_REQUIRE },
b4f27ccc 4216 { "force", no_argument, NULL, 'f' },
ee5762e3 4217 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
f1e36d67 4218 { "defaults", no_argument, NULL, ARG_DEFAULTS },
8a0867d6
LP		 4219 { "kill-mode", required_argument, NULL, ARG_KILL_MODE },
4220 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4221 { "signal", required_argument, NULL, 's' },
501fc174 4222 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
ee5762e3 4223 { NULL, 0, NULL, 0 }
7e4249b9
LP		 4224 };
4225
4226 int c;
4227
e4b61340 4228 assert(argc >= 0);
7e4249b9
LP		 4229 assert(argv);
4230
501fc174
LP		 4231 /* Only when running as systemctl we ask for passwords */
4232 arg_ask_password = true;
4233
8a0867d6 4234 while ((c = getopt_long(argc, argv, "ht:p:aqfs:", options, NULL)) >= 0) {
7e4249b9
LP		 4235
4236 switch (c) {
4237
4238 case 'h':
e4b61340 4239 systemctl_help();
7e4249b9 4240 return 0;
35df8f27
LP		 4241
4242 case ARG_VERSION:
4243 puts(PACKAGE_STRING);
7d568925
LP		 4244 puts(DISTRIBUTION);
4245 puts(SYSTEMD_FEATURES);
35df8f27 4246 return 0;
7e4249b9
LP		 4247
4248 case 't':
4249 arg_type = optarg;
4250 break;
4251
ea4a240d
LP		 4252 case 'p': {
4253 char **l;
4254
4255 if (!(l = strv_append(arg_property, optarg)))
4256 return -ENOMEM;
4257
4258 strv_free(arg_property);
4259 arg_property = l;
48220598
LP		 4260
4261 /* If the user asked for a particular
4262 * property, show it to him, even if it is
4263 * empty. */
4264 arg_all = true;
4265 break;
ea4a240d 4266 }
48220598 4267
7e4249b9
LP		 4268 case 'a':
4269 arg_all = true;
4270 break;
4271
90d473a1
LP		 4272 case ARG_FAIL:
4273 arg_fail = true;
7e4249b9
LP		 4274 break;
4275
4276 case ARG_SESSION:
4277 arg_session = true;
4278 break;
4279
4280 case ARG_SYSTEM:
4281 arg_session = false;
4282 break;
4283
6e905d93
LP		 4284 case ARG_NO_BLOCK:
4285 arg_no_block = true;
7e4249b9
LP		 4286 break;
4287
514f4ef5
LP		 4288 case ARG_NO_WALL:
4289 arg_no_wall = true;
4290 break;
4291
4445a875
LP		 4292 case ARG_ORDER:
4293 arg_dot = DOT_ORDER;
4294 break;
4295
4296 case ARG_REQUIRE:
4297 arg_dot = DOT_REQUIRE;
4298 break;
4299
8fe914ec
LP		 4300 case ARG_FULL:
4301 arg_full = true;
4302 break;
4303
0183528f
LP		 4304 case 'q':
4305 arg_quiet = true;
4306 break;
4307
b4f27ccc 4308 case 'f':
ee5762e3
LP		 4309 arg_force = true;
4310 break;
4311
4312 case ARG_NO_RELOAD:
4313 arg_no_reload = true;
4314 break;
4315
4316 case ARG_GLOBAL:
4317 arg_global = true;
4318 arg_session = true;
4319 break;
4320
4321 case ARG_DEFAULTS:
4322 arg_defaults = true;
4323 break;
4324
8a0867d6
LP		 4325 case ARG_KILL_WHO:
4326 arg_kill_who = optarg;
4327 break;
4328
4329 case ARG_KILL_MODE:
4330 arg_kill_mode = optarg;
4331 break;
4332
4333 case 's':
4334 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4335 log_error("Failed to parse signal string %s.", optarg);
4336 return -EINVAL;
4337 }
4338 break;
4339
501fc174
LP		 4340 case ARG_NO_ASK_PASSWORD:
4341 arg_ask_password = false;
4342 break;
4343
7e4249b9
LP		 4344 case '?':
4345 return -EINVAL;
4346
4347 default:
4348 log_error("Unknown option code %c", c);
4349 return -EINVAL;
4350 }
4351 }
4352
4353 return 1;
4354}
4355
e4b61340
LP		 4356static int halt_parse_argv(int argc, char *argv[]) {
4357
4358 enum {
4359 ARG_HELP = 0x100,
4360 ARG_HALT,
514f4ef5
LP		 4361 ARG_REBOOT,
4362 ARG_NO_WALL
e4b61340
LP		 4363 };
4364
4365 static const struct option options[] = {
4366 { "help", no_argument, NULL, ARG_HELP },
4367 { "halt", no_argument, NULL, ARG_HALT },
4368 { "poweroff", no_argument, NULL, 'p' },
4369 { "reboot", no_argument, NULL, ARG_REBOOT },
4370 { "force", no_argument, NULL, 'f' },
4371 { "wtmp-only", no_argument, NULL, 'w' },
4372 { "no-wtmp", no_argument, NULL, 'd' },
4373 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 4374 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4375 { NULL, 0, NULL, 0 }
4376 };
4377
4378 int c, runlevel;
4379
4380 assert(argc >= 0);
4381 assert(argv);
4382
4383 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4384 if (runlevel == '0' || runlevel == '6')
4385 arg_immediate = true;
4386
4387 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4388 switch (c) {
4389
4390 case ARG_HELP:
4391 halt_help();
4392 return 0;
4393
4394 case ARG_HALT:
4395 arg_action = ACTION_HALT;
4396 break;
4397
4398 case 'p':
a042efad
MS		 4399 if (arg_action != ACTION_REBOOT)
4400 arg_action = ACTION_POWEROFF;
e4b61340
LP		 4401 break;
4402
4403 case ARG_REBOOT:
4404 arg_action = ACTION_REBOOT;
4405 break;
4406
4407 case 'f':
4408 arg_immediate = true;
4409 break;
4410
4411 case 'w':
4412 arg_dry = true;
4413 break;
4414
4415 case 'd':
4416 arg_no_wtmp = true;
4417 break;
4418
4419 case 'n':
4420 arg_no_sync = true;
4421 break;
4422
514f4ef5
LP		 4423 case ARG_NO_WALL:
4424 arg_no_wall = true;
4425 break;
4426
e4b61340
LP		 4427 case 'i':
4428 case 'h':
4429 /* Compatibility nops */
4430 break;
4431
4432 case '?':
4433 return -EINVAL;
4434
4435 default:
4436 log_error("Unknown option code %c", c);
4437 return -EINVAL;
4438 }
4439 }
4440
4441 if (optind < argc) {
4442 log_error("Too many arguments.");
4443 return -EINVAL;
4444 }
4445
4446 return 1;
4447}
4448
f6144808
LP		 4449static int parse_time_spec(const char *t, usec_t *_u) {
4450 assert(t);
4451 assert(_u);
4452
4453 if (streq(t, "now"))
4454 *_u = 0;
4455 else if (t[0] == '+') {
4456 uint64_t u;
4457
4458 if (safe_atou64(t + 1, &u) < 0)
4459 return -EINVAL;
4460
4461 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4462 } else {
4463 char *e = NULL;
4464 long hour, minute;
4465 struct tm tm;
4466 time_t s;
4467 usec_t n;
4468
4469 errno = 0;
4470 hour = strtol(t, &e, 10);
4471 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4472 return -EINVAL;
4473
4474 minute = strtol(e+1, &e, 10);
4475 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4476 return -EINVAL;
4477
4478 n = now(CLOCK_REALTIME);
08e4b1c5
LP		 4479 s = (time_t) (n / USEC_PER_SEC);
4480
4481 zero(tm);
f6144808
LP		 4482 assert_se(localtime_r(&s, &tm));
4483
4484 tm.tm_hour = (int) hour;
4485 tm.tm_min = (int) minute;
08e4b1c5 4486 tm.tm_sec = 0;
f6144808
LP		 4487
4488 assert_se(s = mktime(&tm));
4489
4490 *_u = (usec_t) s * USEC_PER_SEC;
4491
4492 while (*_u <= n)
4493 *_u += USEC_PER_DAY;
4494 }
4495
4496 return 0;
4497}
4498
e4b61340
LP		 4499static int shutdown_parse_argv(int argc, char *argv[]) {
4500
4501 enum {
4502 ARG_HELP = 0x100,
514f4ef5 4503 ARG_NO_WALL
e4b61340
LP		 4504 };
4505
4506 static const struct option options[] = {
4507 { "help", no_argument, NULL, ARG_HELP },
4508 { "halt", no_argument, NULL, 'H' },
4509 { "poweroff", no_argument, NULL, 'P' },
4510 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4511 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4512 { NULL, 0, NULL, 0 }
4513 };
4514
f6144808 4515 int c, r;
e4b61340
LP		 4516
4517 assert(argc >= 0);
4518 assert(argv);
4519
f6144808 4520 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
e4b61340
LP		 4521 switch (c) {
4522
4523 case ARG_HELP:
4524 shutdown_help();
4525 return 0;
4526
4527 case 'H':
4528 arg_action = ACTION_HALT;
4529 break;
4530
4531 case 'P':
4532 arg_action = ACTION_POWEROFF;
4533 break;
4534
4535 case 'r':
4536 arg_action = ACTION_REBOOT;
4537 break;
4538
4539 case 'h':
4540 if (arg_action != ACTION_HALT)
4541 arg_action = ACTION_POWEROFF;
4542 break;
4543
4544 case 'k':
4545 arg_dry = true;
4546 break;
4547
514f4ef5
LP		 4548 case ARG_NO_WALL:
4549 arg_no_wall = true;
4550 break;
4551
e4b61340
LP		 4552 case 't':
4553 case 'a':
4554 /* Compatibility nops */
4555 break;
4556
f6144808
LP		 4557 case 'c':
4558 arg_action = ACTION_CANCEL_SHUTDOWN;
4559 break;
4560
e4b61340
LP		 4561 case '?':
4562 return -EINVAL;
4563
4564 default:
4565 log_error("Unknown option code %c", c);
4566 return -EINVAL;
4567 }
4568 }
4569
6b5ad000 4570 if (argc > optind) {
f6144808
LP		 4571 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4572 log_error("Failed to parse time specification: %s", argv[optind]);
4573 return r;
4574 }
6b5ad000 4575 } else
08e4b1c5 4576 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
442b9094 4577
f6144808 4578 /* We skip the time argument */
e4b61340
LP		 4579 if (argc > optind + 1)
4580 arg_wall = argv + optind + 1;
4581
4582 optind = argc;
4583
4584 return 1;
e4b61340
LP		 4585}
4586
4587static int telinit_parse_argv(int argc, char *argv[]) {
4588
4589 enum {
4590 ARG_HELP = 0x100,
514f4ef5 4591 ARG_NO_WALL
e4b61340
LP		 4592 };
4593
4594 static const struct option options[] = {
4595 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4596 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4597 { NULL, 0, NULL, 0 }
4598 };
4599
4600 static const struct {
4601 char from;
4602 enum action to;
4603 } table[] = {
4604 { '0', ACTION_POWEROFF },
4605 { '6', ACTION_REBOOT },
ef2f1067 4606 { '1', ACTION_RESCUE },
e4b61340
LP		 4607 { '2', ACTION_RUNLEVEL2 },
4608 { '3', ACTION_RUNLEVEL3 },
4609 { '4', ACTION_RUNLEVEL4 },
4610 { '5', ACTION_RUNLEVEL5 },
4611 { 's', ACTION_RESCUE },
4612 { 'S', ACTION_RESCUE },
4613 { 'q', ACTION_RELOAD },
4614 { 'Q', ACTION_RELOAD },
4615 { 'u', ACTION_REEXEC },
4616 { 'U', ACTION_REEXEC }
4617 };
4618
4619 unsigned i;
4620 int c;
4621
4622 assert(argc >= 0);
4623 assert(argv);
4624
4625 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4626 switch (c) {
4627
4628 case ARG_HELP:
4629 telinit_help();
4630 return 0;
4631
514f4ef5
LP		 4632 case ARG_NO_WALL:
4633 arg_no_wall = true;
4634 break;
4635
e4b61340
LP		 4636 case '?':
4637 return -EINVAL;
4638
4639 default:
4640 log_error("Unknown option code %c", c);
4641 return -EINVAL;
4642 }
4643 }
4644
4645 if (optind >= argc) {
2f02ce40 4646 telinit_help();
e4b61340
LP		 4647 return -EINVAL;
4648 }
4649
4650 if (optind + 1 < argc) {
4651 log_error("Too many arguments.");
4652 return -EINVAL;
4653 }
4654
4655 if (strlen(argv[optind]) != 1) {
4656 log_error("Expected single character argument.");
4657 return -EINVAL;
4658 }
4659
4660 for (i = 0; i < ELEMENTSOF(table); i++)
4661 if (table[i].from == argv[optind][0])
4662 break;
4663
4664 if (i >= ELEMENTSOF(table)) {
4665 log_error("Unknown command %s.", argv[optind]);
4666 return -EINVAL;
4667 }
4668
4669 arg_action = table[i].to;
4670
4671 optind ++;
4672
4673 return 1;
4674}
4675
4676static int runlevel_parse_argv(int argc, char *argv[]) {
4677
4678 enum {
4679 ARG_HELP = 0x100,
4680 };
4681
4682 static const struct option options[] = {
4683 { "help", no_argument, NULL, ARG_HELP },
4684 { NULL, 0, NULL, 0 }
4685 };
4686
4687 int c;
4688
4689 assert(argc >= 0);
4690 assert(argv);
4691
4692 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4693 switch (c) {
4694
4695 case ARG_HELP:
4696 runlevel_help();
4697 return 0;
4698
4699 case '?':
4700 return -EINVAL;
4701
4702 default:
4703 log_error("Unknown option code %c", c);
4704 return -EINVAL;
4705 }
4706 }
4707
4708 if (optind < argc) {
4709 log_error("Too many arguments.");
4710 return -EINVAL;
4711 }
4712
4713 return 1;
4714}
4715
4716static int parse_argv(int argc, char *argv[]) {
4717 assert(argc >= 0);
4718 assert(argv);
4719
4720 if (program_invocation_short_name) {
4721
4722 if (strstr(program_invocation_short_name, "halt")) {
4723 arg_action = ACTION_HALT;
4724 return halt_parse_argv(argc, argv);
4725 } else if (strstr(program_invocation_short_name, "poweroff")) {
4726 arg_action = ACTION_POWEROFF;
4727 return halt_parse_argv(argc, argv);
4728 } else if (strstr(program_invocation_short_name, "reboot")) {
4729 arg_action = ACTION_REBOOT;
4730 return halt_parse_argv(argc, argv);
4731 } else if (strstr(program_invocation_short_name, "shutdown")) {
4732 arg_action = ACTION_POWEROFF;
4733 return shutdown_parse_argv(argc, argv);
4734 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4735
4736 if (sd_booted() > 0) {
4737 arg_action = ACTION_INVALID;
4738 return telinit_parse_argv(argc, argv);
4739 } else {
4740 /* Hmm, so some other init system is
4741 * running, we need to forward this
4742 * request to it. For now we simply
4743 * guess that it is Upstart. */
4744
4745 execv("/lib/upstart/telinit", argv);
4746
4747 log_error("Couldn't find an alternative telinit implementation to spawn.");
4748 return -EIO;
4749 }
4750
e4b61340
LP		 4751 } else if (strstr(program_invocation_short_name, "runlevel")) {
4752 arg_action = ACTION_RUNLEVEL;
4753 return runlevel_parse_argv(argc, argv);
4754 }
4755 }
4756
4757 arg_action = ACTION_SYSTEMCTL;
4758 return systemctl_parse_argv(argc, argv);
4759}
4760
d55ae9e6 4761static int action_to_runlevel(void) {
eb22ac37
LP		 4762
4763 static const char table[_ACTION_MAX] = {
4764 [ACTION_HALT] = '0',
4765 [ACTION_POWEROFF] = '0',
4766 [ACTION_REBOOT] = '6',
4767 [ACTION_RUNLEVEL2] = '2',
4768 [ACTION_RUNLEVEL3] = '3',
4769 [ACTION_RUNLEVEL4] = '4',
4770 [ACTION_RUNLEVEL5] = '5',
4771 [ACTION_RESCUE] = '1'
4772 };
4773
d55ae9e6
LP		 4774 assert(arg_action < _ACTION_MAX);
4775
4776 return table[arg_action];
4777}
4778
f1c5860b 4779static int talk_upstart(void) {
d55ae9e6
LP		 4780 DBusMessage *m = NULL, *reply = NULL;
4781 DBusError error;
4782 int previous, rl, r;
4783 char
4784 env1_buf[] = "RUNLEVEL=X",
4785 env2_buf[] = "PREVLEVEL=X";
4786 char *env1 = env1_buf, *env2 = env2_buf;
4787 const char *emit = "runlevel";
4788 dbus_bool_t b_false = FALSE;
4789 DBusMessageIter iter, sub;
f1c5860b 4790 DBusConnection *bus;
d55ae9e6
LP		 4791
4792 dbus_error_init(&error);
4793
4794 if (!(rl = action_to_runlevel()))
4795 return 0;
4796
4797 if (utmp_get_runlevel(&previous, NULL) < 0)
4798 previous = 'N';
4799
b574246b 4800 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 4801 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4802 r = 0;
4803 goto finish;
4804 }
4805
4cf5d675 4806 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
f1c5860b
LP		 4807 r = -EIO;
4808 goto finish;
4809 }
4810
4811 if ((r = bus_check_peercred(bus)) < 0) {
4812 log_error("Failed to verify owner of bus.");
4813 goto finish;
4814 }
4815
d55ae9e6
LP		 4816 if (!(m = dbus_message_new_method_call(
4817 "com.ubuntu.Upstart",
4818 "/com/ubuntu/Upstart",
4819 "com.ubuntu.Upstart0_6",
4820 "EmitEvent"))) {
4821
4822 log_error("Could not allocate message.");
f1c5860b
LP		 4823 r = -ENOMEM;
4824 goto finish;
d55ae9e6
LP		 4825 }
4826
4827 dbus_message_iter_init_append(m, &iter);
4828
4829 env1_buf[sizeof(env1_buf)-2] = rl;
4830 env2_buf[sizeof(env2_buf)-2] = previous;
4831
4832 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4833 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4834 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4835 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4836 !dbus_message_iter_close_container(&iter, &sub) ||
4837 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4838 log_error("Could not append arguments to message.");
4839 r = -ENOMEM;
4840 goto finish;
4841 }
4842
4843 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4844
4845 if (error_is_no_service(&error)) {
aabd9b11 4846 r = -EADDRNOTAVAIL;
d55ae9e6
LP		 4847 goto finish;
4848 }
4849
4cf5d675 4850 log_error("Failed to issue method call: %s", bus_error_message(&error));
d55ae9e6
LP		 4851 r = -EIO;
4852 goto finish;
4853 }
4854
aabd9b11 4855 r = 0;
d55ae9e6
LP		 4856
4857finish:
4858 if (m)
4859 dbus_message_unref(m);
4860
4861 if (reply)
4862 dbus_message_unref(reply);
4863
b574246b 4864 if (bus) {
5d452f9c 4865 dbus_connection_flush(bus);
b574246b 4866 dbus_connection_close(bus);
f1c5860b 4867 dbus_connection_unref(bus);
b574246b 4868 }
f1c5860b 4869
d55ae9e6
LP		 4870 dbus_error_free(&error);
4871
4872 return r;
4873}
4874
4875static int talk_initctl(void) {
eb22ac37
LP		 4876 struct init_request request;
4877 int r, fd;
d55ae9e6 4878 char rl;
eb22ac37 4879
d55ae9e6 4880 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 4881 return 0;
4882
4883 zero(request);
4884 request.magic = INIT_MAGIC;
4885 request.sleeptime = 0;
4886 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 4887 request.runlevel = rl;
4888
4889 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4890
4891 if (errno == ENOENT)
4892 return 0;
eb22ac37 4893
d55ae9e6 4894 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 4895 return -errno;
d55ae9e6 4896 }
eb22ac37 4897
d55ae9e6 4898 errno = 0;
eb22ac37
LP		 4899 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4900 close_nointr_nofail(fd);
4901
d55ae9e6
LP		 4902 if (r < 0) {
4903 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 4904 return errno ? -errno : -EIO;
d55ae9e6 4905 }
eb22ac37
LP		 4906
4907 return 1;
e4b61340
LP		 4908}
4909
ee5762e3 4910static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 4911
7e4249b9
LP		 4912 static const struct {
4913 const char* verb;
4914 const enum {
4915 MORE,
4916 LESS,
4917 EQUAL
4918 } argc_cmp;
4919 const int argc;
4920 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4921 } verbs[] = {
ee5762e3
LP		 4922 { "list-units", LESS, 1, list_units },
4923 { "list-jobs", EQUAL, 1, list_jobs },
4924 { "clear-jobs", EQUAL, 1, daemon_reload },
4925 { "load", MORE, 2, load_unit },
4926 { "cancel", MORE, 2, cancel_job },
4927 { "start", MORE, 2, start_unit },
4928 { "stop", MORE, 2, start_unit },
4929 { "reload", MORE, 2, start_unit },
4930 { "restart", MORE, 2, start_unit },
4931 { "try-restart", MORE, 2, start_unit },
4932 { "reload-or-restart", MORE, 2, start_unit },
4933 { "reload-or-try-restart", MORE, 2, start_unit },
4934 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4935 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4936 { "isolate", EQUAL, 2, start_unit },
8a0867d6 4937 { "kill", MORE, 2, kill_unit },
ee5762e3
LP		 4938 { "is-active", MORE, 2, check_unit },
4939 { "check", MORE, 2, check_unit },
4940 { "show", MORE, 1, show },
4941 { "status", MORE, 2, show },
4942 { "monitor", EQUAL, 1, monitor },
4943 { "dump", EQUAL, 1, dump },
4944 { "dot", EQUAL, 1, dot },
4945 { "snapshot", LESS, 2, snapshot },
4946 { "delete", MORE, 2, delete_snapshot },
4947 { "daemon-reload", EQUAL, 1, daemon_reload },
4948 { "daemon-reexec", EQUAL, 1, daemon_reload },
ee5762e3
LP		 4949 { "show-environment", EQUAL, 1, show_enviroment },
4950 { "set-environment", MORE, 2, set_environment },
4951 { "unset-environment", MORE, 2, set_environment },
4952 { "halt", EQUAL, 1, start_special },
4953 { "poweroff", EQUAL, 1, start_special },
4954 { "reboot", EQUAL, 1, start_special },
20b09ca7 4955 { "kexec", EQUAL, 1, start_special },
ee5762e3
LP		 4956 { "default", EQUAL, 1, start_special },
4957 { "rescue", EQUAL, 1, start_special },
4958 { "emergency", EQUAL, 1, start_special },
20b09ca7 4959 { "exit", EQUAL, 1, start_special },
fdf20a31 4960 { "reset-failed", MORE, 1, reset_failed },
ee5762e3
LP		 4961 { "enable", MORE, 2, enable_unit },
4962 { "disable", MORE, 2, enable_unit },
4963 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 4964 };
4965
e4b61340 4966 int left;
7e4249b9 4967 unsigned i;
7e4249b9 4968
e4b61340
LP		 4969 assert(argc >= 0);
4970 assert(argv);
ee5762e3 4971 assert(error);
7e4249b9
LP		 4972
4973 left = argc - optind;
4974
4975 if (left <= 0)
4976 /* Special rule: no arguments means "list-units" */
4977 i = 0;
4978 else {
0183528f
LP		 4979 if (streq(argv[optind], "help")) {
4980 systemctl_help();
4981 return 0;
4982 }
4983
7e4249b9
LP		 4984 for (i = 0; i < ELEMENTSOF(verbs); i++)
4985 if (streq(argv[optind], verbs[i].verb))
4986 break;
4987
4988 if (i >= ELEMENTSOF(verbs)) {
4989 log_error("Unknown operation %s", argv[optind]);
e4b61340 4990 return -EINVAL;
7e4249b9
LP		 4991 }
4992 }
4993
4994 switch (verbs[i].argc_cmp) {
4995
4996 case EQUAL:
4997 if (left != verbs[i].argc) {
4998 log_error("Invalid number of arguments.");
e4b61340 4999 return -EINVAL;
7e4249b9
LP		 5000 }
5001
5002 break;
5003
5004 case MORE:
5005 if (left < verbs[i].argc) {
5006 log_error("Too few arguments.");
e4b61340 5007 return -EINVAL;
7e4249b9
LP		 5008 }
5009
5010 break;
5011
5012 case LESS:
5013 if (left > verbs[i].argc) {
5014 log_error("Too many arguments.");
e4b61340 5015 return -EINVAL;
7e4249b9
LP		 5016 }
5017
5018 break;
5019
5020 default:
5021 assert_not_reached("Unknown comparison operator.");
5022 }
5023
ee5762e3
LP		 5024 /* Require a bus connection for all operations but
5025 * enable/disable */
5026 if (!streq(verbs[i].verb, "enable") &&
5027 !streq(verbs[i].verb, "disable") &&
5028 !bus) {
5029 log_error("Failed to get D-Bus connection: %s", error->message);
5030 return -EIO;
5031 }
5032
e4b61340
LP		 5033 return verbs[i].dispatch(bus, argv + optind, left);
5034}
5035
9be9828c 5036static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
f6144808
LP		 5037 int fd = -1;
5038 struct msghdr msghdr;
5039 struct iovec iovec;
5040 union sockaddr_union sockaddr;
f6144808
LP		 5041 struct shutdownd_command c;
5042
5043 zero(c);
5044 c.elapse = t;
5045 c.mode = mode;
9be9828c
LP		 5046 c.warn_wall = warn;
5047
5048 if (message)
5049 strncpy(c.wall_message, message, sizeof(c.wall_message));
f6144808
LP		 5050
5051 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5052 return -errno;
5053
5054 zero(sockaddr);
5055 sockaddr.sa.sa_family = AF_UNIX;
5056 sockaddr.un.sun_path[0] = 0;
5057 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
5058
5059 zero(iovec);
5060 iovec.iov_base = (char*) &c;
5061 iovec.iov_len = sizeof(c);
5062
f6144808
LP		 5063 zero(msghdr);
5064 msghdr.msg_name = &sockaddr;
0e098b15 5065 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
f6144808
LP		 5066
5067 msghdr.msg_iov = &iovec;
5068 msghdr.msg_iovlen = 1;
f6144808
LP		 5069
5070 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5071 close_nointr_nofail(fd);
5072 return -errno;
5073 }
5074
5075 close_nointr_nofail(fd);
5076 return 0;
5077}
5078
e4b61340 5079static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5080
5081 if (bus) {
5082 /* First, try systemd via D-Bus. */
e364ad06 5083 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 5084 return 0;
5085 }
5086
5087 /* Nothing else worked, so let's try signals */
5088 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5089
5090 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5091 log_error("kill() failed: %m");
5092 return -errno;
5093 }
5094
5095 return 0;
5096}
5097
5098static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5099
5100 if (bus) {
5101 /* First, try systemd via D-Bus. */
706900b7 5102 if (start_unit(bus, NULL, 0) >= 0)
983d9c90 5103 goto done;
e4b61340
LP		 5104 }
5105
ec7f7f20
LP		 5106 /* Hmm, talking to systemd via D-Bus didn't work. Then
5107 * let's try to talk to Upstart via D-Bus. */
e364ad06 5108 if (talk_upstart() > 0)
ec7f7f20
LP		 5109 goto done;
5110
e4b61340
LP		 5111 /* Nothing else worked, so let's try
5112 * /dev/initctl */
fbc43921 5113 if (talk_initctl() > 0)
983d9c90 5114 goto done;
d55ae9e6
LP		 5115
5116 log_error("Failed to talk to init daemon.");
5117 return -EIO;
983d9c90
LP		 5118
5119done:
5120 warn_wall(arg_action);
5121 return 0;
e4b61340
LP		 5122}
5123
5124static int halt_main(DBusConnection *bus) {
5125 int r;
5126
bc8c2f5c 5127 if (geteuid() != 0) {
cc8a7a61 5128 log_error("Must be root.");
bc8c2f5c
LP		 5129 return -EPERM;
5130 }
5131
f6144808 5132 if (arg_when > 0) {
9be9828c 5133 char *m;
08e4b1c5 5134 char date[FORMAT_TIMESTAMP_MAX];
9be9828c
LP		 5135
5136 m = strv_join(arg_wall, " ");
5137 r = send_shutdownd(arg_when,
5138 arg_action == ACTION_HALT ? 'H' :
5139 arg_action == ACTION_POWEROFF ? 'P' :
5140 'r',
5141 !arg_no_wall,
5142 m);
5143 free(m);
5144
5145 if (r < 0)
f6144808 5146 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
08e4b1c5
LP		 5147 else {
5148 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5149 format_timestamp(date, sizeof(date), arg_when));
f6144808 5150 return 0;
08e4b1c5 5151 }
f6144808
LP		 5152 }
5153
d47b555b 5154 if (!arg_dry && !arg_immediate)
e4b61340
LP		 5155 return start_with_fallback(bus);
5156
d90e1a30
LP		 5157 if (!arg_no_wtmp) {
5158 if (sd_booted() > 0)
5159 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5160 else if ((r = utmp_put_shutdown(0)) < 0)
e4b61340 5161 log_warning("Failed to write utmp record: %s", strerror(-r));
d90e1a30 5162 }
e4b61340
LP		 5163
5164 if (!arg_no_sync)
5165 sync();
5166
5167 if (arg_dry)
5168 return 0;
5169
5170 /* Make sure C-A-D is handled by the kernel from this
5171 * point on... */
5172 reboot(RB_ENABLE_CAD);
5173
5174 switch (arg_action) {
5175
5176 case ACTION_HALT:
3059b1c1 5177 log_info("Halting.");
e4b61340
LP		 5178 reboot(RB_HALT_SYSTEM);
5179 break;
5180
5181 case ACTION_POWEROFF:
3059b1c1 5182 log_info("Powering off.");
e4b61340
LP		 5183 reboot(RB_POWER_OFF);
5184 break;
5185
5186 case ACTION_REBOOT:
3059b1c1 5187 log_info("Rebooting.");
e4b61340
LP		 5188 reboot(RB_AUTOBOOT);
5189 break;
5190
5191 default:
5192 assert_not_reached("Unknown halt action.");
5193 }
5194
5195 /* We should never reach this. */
5196 return -ENOSYS;
5197}
5198
5199static int runlevel_main(void) {
5200 int r, runlevel, previous;
5201
5202 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 5203 printf("unknown\n");
e4b61340
LP		 5204 return r;
5205 }
5206
5207 printf("%c %c\n",
5208 previous <= 0 ? 'N' : previous,
5209 runlevel <= 0 ? 'N' : runlevel);
5210
5211 return 0;
5212}
5213
5214int main(int argc, char*argv[]) {
22f4096c 5215 int r, retval = EXIT_FAILURE;
e4b61340
LP		 5216 DBusConnection *bus = NULL;
5217 DBusError error;
5218
5219 dbus_error_init(&error);
5220
5221 log_parse_environment();
2396fb04 5222 log_open();
e4b61340
LP		 5223
5224 if ((r = parse_argv(argc, argv)) < 0)
5225 goto finish;
5226 else if (r == 0) {
22f4096c 5227 retval = EXIT_SUCCESS;
7e4249b9
LP		 5228 goto finish;
5229 }
5230
e4b61340
LP		 5231 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5232 * let's shortcut this */
5233 if (arg_action == ACTION_RUNLEVEL) {
22f4096c
LP		 5234 r = runlevel_main();
5235 retval = r < 0 ? EXIT_FAILURE : r;
e4b61340
LP		 5236 goto finish;
5237 }
5238
f4579ce7 5239 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 5240
5241 switch (arg_action) {
5242
22f4096c
LP		 5243 case ACTION_SYSTEMCTL:
5244 r = systemctl_main(bus, argc, argv, &error);
e4b61340 5245 break;
e4b61340
LP		 5246
5247 case ACTION_HALT:
5248 case ACTION_POWEROFF:
5249 case ACTION_REBOOT:
22f4096c 5250 r = halt_main(bus);
e4b61340
LP		 5251 break;
5252
e4b61340
LP		 5253 case ACTION_RUNLEVEL2:
5254 case ACTION_RUNLEVEL3:
5255 case ACTION_RUNLEVEL4:
5256 case ACTION_RUNLEVEL5:
5257 case ACTION_RESCUE:
514f4ef5 5258 case ACTION_EMERGENCY:
eb22ac37 5259 case ACTION_DEFAULT:
22f4096c 5260 r = start_with_fallback(bus);
e4b61340 5261 break;
7e4249b9 5262
e4b61340
LP		 5263 case ACTION_RELOAD:
5264 case ACTION_REEXEC:
22f4096c 5265 r = reload_with_fallback(bus);
e4b61340
LP		 5266 break;
5267
f6144808 5268 case ACTION_CANCEL_SHUTDOWN:
22f4096c 5269 r = send_shutdownd(0, 0, false, NULL);
f6144808
LP		 5270 break;
5271
eb22ac37
LP		 5272 case ACTION_INVALID:
5273 case ACTION_RUNLEVEL:
e4b61340
LP		 5274 default:
5275 assert_not_reached("Unknown action");
5276 }
7e4249b9 5277
22f4096c
LP		 5278 retval = r < 0 ? EXIT_FAILURE : r;
5279
7e4249b9
LP		 5280finish:
5281
b574246b 5282 if (bus) {
5d452f9c 5283 dbus_connection_flush(bus);
b574246b 5284 dbus_connection_close(bus);
7e4249b9 5285 dbus_connection_unref(bus);
b574246b 5286 }
7e4249b9 5287
e4b61340
LP		 5288 dbus_error_free(&error);
5289
7e4249b9
LP		 5290 dbus_shutdown();
5291
ea4a240d
LP		 5292 strv_free(arg_property);
5293
7e4249b9
LP		 5294 return retval;
5295}
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