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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;
e67c3609 63static const char *arg_job_mode = "replace";
af2d49f7 64static bool arg_user = false;
ee5762e3 65static bool arg_global = false;
e4b61340 66static bool arg_immediate = false;
ee5762e3 67static bool arg_no_block = false;
0736af98 68static bool arg_no_pager = false;
e4b61340
LP		 69static bool arg_no_wtmp = false;
70static bool arg_no_sync = false;
514f4ef5 71static bool arg_no_wall = false;
ee5762e3 72static bool arg_no_reload = false;
e4b61340 73static bool arg_dry = false;
0183528f 74static bool arg_quiet = false;
ee5762e3
LP		 75static bool arg_full = false;
76static bool arg_force = false;
77static bool arg_defaults = false;
501fc174 78static bool arg_ask_password = false;
30732560 79static bool arg_failed = false;
e4b61340 80static char **arg_wall = NULL;
8a0867d6
LP		 81static const char *arg_kill_who = NULL;
82static const char *arg_kill_mode = NULL;
83static int arg_signal = SIGTERM;
f6144808 84static usec_t arg_when = 0;
4445a875 85static enum action {
e4b61340
LP		 86 ACTION_INVALID,
87 ACTION_SYSTEMCTL,
88 ACTION_HALT,
89 ACTION_POWEROFF,
90 ACTION_REBOOT,
20b09ca7
LP		 91 ACTION_KEXEC,
92 ACTION_EXIT,
e4b61340
LP		 93 ACTION_RUNLEVEL2,
94 ACTION_RUNLEVEL3,
95 ACTION_RUNLEVEL4,
96 ACTION_RUNLEVEL5,
97 ACTION_RESCUE,
514f4ef5
LP		 98 ACTION_EMERGENCY,
99 ACTION_DEFAULT,
e4b61340
LP		 100 ACTION_RELOAD,
101 ACTION_REEXEC,
102 ACTION_RUNLEVEL,
f6144808 103 ACTION_CANCEL_SHUTDOWN,
e4b61340
LP		 104 _ACTION_MAX
105} arg_action = ACTION_SYSTEMCTL;
4445a875
LP		 106static enum dot {
107 DOT_ALL,
108 DOT_ORDER,
109 DOT_REQUIRE
110} arg_dot = DOT_ALL;
e4b61340 111
f4579ce7
LP		 112static bool private_bus = false;
113
1888c907 114static pid_t pager_pid = 0;
c0f9c7da 115static pid_t agent_pid = 0;
1888c907 116
ee5762e3 117static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
ec14911e 118static void pager_open(void);
ee5762e3 119
2ee68f72 120static bool on_tty(void) {
2cc59dbf
LP		 121 static int t = -1;
122
75d12d57
LP		 123 /* Note that this is invoked relatively early, before we start
124 * the pager. That means the value we return reflects whether
125 * we originally were started on a tty, not if we currently
060ed82e 126 * are. But this is intended, since we want colour and so on
75d12d57
LP		 127 * when run in our own pager. */
128
2cc59dbf
LP		 129 if (_unlikely_(t < 0))
130 t = isatty(STDOUT_FILENO) > 0;
131
2ee68f72
LP		 132 return t;
133}
134
501fc174 135static void spawn_ask_password_agent(void) {
c0f9c7da
LP		 136 pid_t parent;
137
138 if (agent_pid > 0)
139 return;
501fc174
LP		 140
141 /* We check STDIN here, not STDOUT, since this is about input,
142 * not output */
143 if (!isatty(STDIN_FILENO))
144 return;
145
146 if (!arg_ask_password)
147 return;
715554e7
LP		 148
149 if (arg_user)
150 return;
501fc174
LP		 151
152 parent = getpid();
153
154 /* Spawns a temporary TTY agent, making sure it goes away when
155 * we go away */
156
c0f9c7da 157 if ((agent_pid = fork()) < 0)
501fc174
LP		 158 return;
159
c0f9c7da 160 if (agent_pid == 0) {
501fc174 161 /* In the child */
501fc174 162
7f6d6135 163 int fd;
7fc01d33 164 bool stdout_is_tty, stderr_is_tty;
7f6d6135
LP		 165
166 /* Make sure the agent goes away when the parent dies */
501fc174
LP		 167 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
168 _exit(EXIT_FAILURE);
169
170 /* Check whether our parent died before we were able
171 * to set the death signal */
172 if (getppid() != parent)
173 _exit(EXIT_SUCCESS);
174
7f6d6135
LP		 175 /* Don't leak fds to the agent */
176 close_all_fds(NULL, 0);
177
7fc01d33
LP		 178 stdout_is_tty = isatty(STDOUT_FILENO);
179 stderr_is_tty = isatty(STDERR_FILENO);
180
181 if (!stdout_is_tty || !stderr_is_tty) {
060ed82e
LP		 182 /* Detach from stdout/stderr. and reopen
183 * /dev/tty for them. This is important to
184 * ensure that when systemctl is started via
185 * popen() or a similar call that expects to
186 * read EOF we actually do generate EOF and
187 * not delay this indefinitely by because we
188 * keep an unused copy of stdin around. */
189 if ((fd = open("/dev/tty", O_WRONLY)) < 0) {
190 log_error("Failed to open /dev/tty: %m");
191 _exit(EXIT_FAILURE);
192 }
193
7fc01d33 194 if (!stdout_is_tty)
060ed82e 195 dup2(fd, STDOUT_FILENO);
060ed82e 196
7fc01d33 197 if (!stderr_is_tty)
060ed82e 198 dup2(fd, STDERR_FILENO);
060ed82e
LP		 199
200 if (fd > 2)
201 close(fd);
7f6d6135
LP		 202 }
203
c0f9c7da
LP		 204 execl(SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
205
206 log_error("Unable to execute agent: %m");
501fc174
LP		 207 _exit(EXIT_FAILURE);
208 }
209}
210
2ee68f72
LP		 211static const char *ansi_highlight(bool b) {
212
213 if (!on_tty())
2cc59dbf
LP		 214 return "";
215
216 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
217}
218
2ee68f72
LP		 219static const char *ansi_highlight_green(bool b) {
220
221 if (!on_tty())
222 return "";
223
224 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
225}
226
f73e33d9 227static bool error_is_no_service(const DBusError *error) {
514f4ef5
LP		 228 assert(error);
229
e4b61340
LP		 230 if (!dbus_error_is_set(error))
231 return false;
232
233 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
234 return true;
235
236 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
237 return true;
238
239 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
240}
7e4249b9 241
22f4096c
LP		 242static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
243 assert(error);
244
245 if (!dbus_error_is_set(error))
246 return r;
247
248 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
249 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
250 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
251 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
252 return EXIT_NOPERMISSION;
253
254 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
255 return EXIT_NOTINSTALLED;
256
257 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
258 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
259 return EXIT_NOTIMPLEMENTED;
260
261 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
262 return EXIT_NOTCONFIGURED;
263
264 if (r != 0)
265 return r;
266
267 return EXIT_FAILURE;
268}
269
7e4249b9
LP		 270static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
271
514f4ef5
LP		 272 assert(iter);
273 assert(data);
274
7e4249b9
LP		 275 if (dbus_message_iter_get_arg_type(iter) != type)
276 return -EIO;
277
278 dbus_message_iter_get_basic(iter, data);
279
280 if (!dbus_message_iter_next(iter) != !next)
281 return -EIO;
282
283 return 0;
284}
285
514f4ef5 286static void warn_wall(enum action action) {
ef2f1067 287 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 288 [ACTION_HALT] = "The system is going down for system halt NOW!",
289 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
290 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
20b09ca7 291 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
514f4ef5
LP		 292 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
293 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 294 };
295
514f4ef5
LP		 296 if (arg_no_wall)
297 return;
298
e4a9373f
LP		 299 if (arg_wall) {
300 char *p;
301
302 if (!(p = strv_join(arg_wall, " "))) {
303 log_error("Failed to join strings.");
304 return;
305 }
306
307 if (*p) {
7af53310 308 utmp_wall(p, NULL);
e4a9373f
LP		 309 free(p);
310 return;
311 }
312
313 free(p);
314 }
315
514f4ef5 316 if (!table[action])
ef2f1067
LP		 317 return;
318
7af53310 319 utmp_wall(table[action], NULL);
ef2f1067
LP		 320}
321
36c32ba2
LP		 322struct unit_info {
323 const char *id;
324 const char *description;
325 const char *load_state;
326 const char *active_state;
327 const char *sub_state;
328 const char *following;
329 const char *unit_path;
330 uint32_t job_id;
331 const char *job_type;
332 const char *job_path;
333};
334
335static int compare_unit_info(const void *a, const void *b) {
336 const char *d1, *d2;
337 const struct unit_info *u = a, *v = b;
338
339 d1 = strrchr(u->id, '.');
340 d2 = strrchr(v->id, '.');
341
342 if (d1 && d2) {
343 int r;
344
a2a3a5b9 345 if ((r = strcasecmp(d1, d2)) != 0)
36c32ba2
LP		 346 return r;
347 }
348
a2a3a5b9 349 return strcasecmp(u->id, v->id);
36c32ba2
LP		 350}
351
30732560 352static bool output_show_unit(const struct unit_info *u) {
33330222 353 const char *dot;
b036fc00 354
30732560
LP		 355 if (arg_failed)
356 return streq(u->active_state, "failed");
357
33330222
ZJS		 358 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
359 streq(dot+1, arg_type))) &&
360 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
361}
362
eb68c413 363static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
688c6725 364 unsigned active_len, sub_len, job_len, n_shown = 0;
b036fc00 365 const struct unit_info *u;
33330222 366
b036fc00
LP		 367 active_len = sizeof("ACTIVE")-1;
368 sub_len = sizeof("SUB")-1;
369 job_len = sizeof("JOB")-1;
370
371 for (u = unit_infos; u < unit_infos + c; u++) {
30732560 372 if (!output_show_unit(u))
b036fc00
LP		 373 continue;
374
375 active_len = MAX(active_len, strlen(u->active_state));
376 sub_len = MAX(sub_len, strlen(u->sub_state));
377 if (u->job_id != 0)
378 job_len = MAX(job_len, strlen(u->job_type));
33330222
ZJS		 379 }
380
eb68c413 381 if (on_tty()) {
33330222
ZJS		 382 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
383 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
eb68c413 384 if (columns() >= 80+12 || arg_full)
33330222 385 printf(" %s\n", "DESCRIPTION");
eb68c413 386 else
33330222 387 printf("\n");
eb68c413
ZJS		 388 }
389
b036fc00
LP		 390 for (u = unit_infos; u < unit_infos + c; u++) {
391 char *e;
392 int a = 0, b = 0;
393 const char *on_loaded, *off_loaded;
394 const char *on_active, *off_active;
395
30732560 396 if (!output_show_unit(u))
b036fc00
LP		 397 continue;
398
688c6725
LP		 399 n_shown++;
400
00dc5d76
LP		 401 if (!streq(u->load_state, "loaded") &&
402 !streq(u->load_state, "banned")) {
b036fc00
LP		 403 on_loaded = ansi_highlight(true);
404 off_loaded = ansi_highlight(false);
405 } else
406 on_loaded = off_loaded = "";
407
408 if (streq(u->active_state, "failed")) {
409 on_active = ansi_highlight(true);
410 off_active = ansi_highlight(false);
411 } else
412 on_active = off_active = "";
eb68c413 413
b036fc00 414 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
eb68c413 415
b036fc00
LP		 416 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
417 e ? e : u->id,
418 on_loaded, u->load_state, off_loaded,
419 on_active, active_len, u->active_state,
420 sub_len, u->sub_state, off_active,
421 &a);
eb68c413 422
b036fc00
LP		 423 free(e);
424
425 a -= strlen(on_loaded) + strlen(off_loaded);
426 a -= strlen(on_active) + strlen(off_active);
427
428 if (u->job_id != 0)
429 printf(" %-*s", job_len, u->job_type);
430 else
431 b = 1 + job_len;
432
433 if (a + b + 1 < columns()) {
434 if (u->job_id == 0)
435 printf(" %-*s", job_len, "");
436
437 if (arg_full)
438 printf(" %s", u->description);
439 else
440 printf(" %.*s", columns() - a - b - 1, u->description);
eb68c413 441 }
b036fc00
LP		 442
443 fputs("\n", stdout);
eb68c413
ZJS		 444 }
445
9b2fcafb 446 if (on_tty()) {
eb68c413
ZJS		 447 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
448 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
449 "SUB = The low-level unit activation state, values depend on unit type.\n"
450 "JOB = Pending job for the unit.\n");
451
452 if (arg_all)
688c6725 453 printf("\n%u units listed.\n", n_shown);
eb68c413 454 else
688c6725 455 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
eb68c413
ZJS		 456 }
457}
458
7e4249b9
LP		 459static int list_units(DBusConnection *bus, char **args, unsigned n) {
460 DBusMessage *m = NULL, *reply = NULL;
461 DBusError error;
462 int r;
463 DBusMessageIter iter, sub, sub2;
eb68c413 464 unsigned c = 0, n_units = 0;
36c32ba2 465 struct unit_info *unit_infos = NULL;
7e4249b9
LP		 466
467 dbus_error_init(&error);
468
514f4ef5
LP		 469 assert(bus);
470
ec14911e
LP		 471 pager_open();
472
7e4249b9
LP		 473 if (!(m = dbus_message_new_method_call(
474 "org.freedesktop.systemd1",
475 "/org/freedesktop/systemd1",
476 "org.freedesktop.systemd1.Manager",
477 "ListUnits"))) {
478 log_error("Could not allocate message.");
479 return -ENOMEM;
480 }
481
482 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 483 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 484 r = -EIO;
485 goto finish;
486 }
487
488 if (!dbus_message_iter_init(reply, &iter) ||
489 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
490 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
491 log_error("Failed to parse reply.");
492 r = -EIO;
493 goto finish;
494 }
495
496 dbus_message_iter_recurse(&iter, &sub);
497
7e4249b9 498 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
36c32ba2 499 struct unit_info *u;
7e4249b9
LP		 500
501 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
502 log_error("Failed to parse reply.");
503 r = -EIO;
504 goto finish;
505 }
506
36c32ba2
LP		 507 if (c >= n_units) {
508 struct unit_info *w;
509
510 n_units = MAX(2*c, 16);
511 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
512
513 if (!w) {
514 log_error("Failed to allocate unit array.");
515 r = -ENOMEM;
516 goto finish;
517 }
518
519 unit_infos = w;
520 }
521
522 u = unit_infos+c;
523
7e4249b9
LP		 524 dbus_message_iter_recurse(&sub, &sub2);
525
36c32ba2
LP		 526 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
527 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
528 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
529 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
530 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
531 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
532 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
533 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
534 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
535 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
7e4249b9
LP		 536 log_error("Failed to parse reply.");
537 r = -EIO;
538 goto finish;
539 }
540
36c32ba2
LP		 541 dbus_message_iter_next(&sub);
542 c++;
543 }
544
bd40a2d8
LP		 545 if (c > 0) {
546 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
547 output_units_list(unit_infos, c);
548 }
4445a875
LP		 549
550 r = 0;
551
552finish:
553 if (m)
554 dbus_message_unref(m);
555
556 if (reply)
557 dbus_message_unref(reply);
558
36c32ba2
LP		 559 free(unit_infos);
560
4445a875
LP		 561 dbus_error_free(&error);
562
563 return r;
564}
565
566static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
567 static const char * const colors[] = {
568 "Requires", "[color=\"black\"]",
569 "RequiresOverridable", "[color=\"black\"]",
570 "Requisite", "[color=\"darkblue\"]",
571 "RequisiteOverridable", "[color=\"darkblue\"]",
572 "Wants", "[color=\"darkgrey\"]",
573 "Conflicts", "[color=\"red\"]",
69dd2852 574 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 575 "After", "[color=\"green\"]"
576 };
577
578 const char *c = NULL;
579 unsigned i;
580
581 assert(name);
582 assert(prop);
583 assert(iter);
584
585 for (i = 0; i < ELEMENTSOF(colors); i += 2)
586 if (streq(colors[i], prop)) {
587 c = colors[i+1];
588 break;
589 }
590
591 if (!c)
592 return 0;
593
594 if (arg_dot != DOT_ALL)
595 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
596 return 0;
597
598 switch (dbus_message_iter_get_arg_type(iter)) {
599
600 case DBUS_TYPE_ARRAY:
601
602 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
603 DBusMessageIter sub;
604
605 dbus_message_iter_recurse(iter, &sub);
606
607 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
608 const char *s;
609
610 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
611 dbus_message_iter_get_basic(&sub, &s);
612 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
613
614 dbus_message_iter_next(&sub);
615 }
616
617 return 0;
618 }
619 }
620
621 return 0;
622}
623
624static int dot_one(DBusConnection *bus, const char *name, const char *path) {
625 DBusMessage *m = NULL, *reply = NULL;
626 const char *interface = "org.freedesktop.systemd1.Unit";
627 int r;
628 DBusError error;
629 DBusMessageIter iter, sub, sub2, sub3;
630
631 assert(bus);
632 assert(path);
633
634 dbus_error_init(&error);
635
636 if (!(m = dbus_message_new_method_call(
637 "org.freedesktop.systemd1",
638 path,
639 "org.freedesktop.DBus.Properties",
640 "GetAll"))) {
641 log_error("Could not allocate message.");
642 r = -ENOMEM;
643 goto finish;
644 }
645
646 if (!dbus_message_append_args(m,
647 DBUS_TYPE_STRING, &interface,
648 DBUS_TYPE_INVALID)) {
649 log_error("Could not append arguments to message.");
650 r = -ENOMEM;
651 goto finish;
652 }
653
654 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 655 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 656 r = -EIO;
657 goto finish;
658 }
659
660 if (!dbus_message_iter_init(reply, &iter) ||
661 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
662 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
663 log_error("Failed to parse reply.");
664 r = -EIO;
665 goto finish;
666 }
667
668 dbus_message_iter_recurse(&iter, &sub);
669
670 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
671 const char *prop;
672
673 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
674 log_error("Failed to parse reply.");
675 r = -EIO;
676 goto finish;
677 }
678
679 dbus_message_iter_recurse(&sub, &sub2);
680
681 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
682 log_error("Failed to parse reply.");
683 r = -EIO;
684 goto finish;
685 }
686
687 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
688 log_error("Failed to parse reply.");
689 r = -EIO;
690 goto finish;
691 }
692
693 dbus_message_iter_recurse(&sub2, &sub3);
694
695 if (dot_one_property(name, prop, &sub3)) {
696 log_error("Failed to parse reply.");
697 r = -EIO;
698 goto finish;
699 }
700
701 dbus_message_iter_next(&sub);
702 }
703
e364ad06
LP		 704 r = 0;
705
4445a875
LP		 706finish:
707 if (m)
708 dbus_message_unref(m);
709
710 if (reply)
711 dbus_message_unref(reply);
712
713 dbus_error_free(&error);
714
715 return r;
716}
717
718static int dot(DBusConnection *bus, char **args, unsigned n) {
719 DBusMessage *m = NULL, *reply = NULL;
720 DBusError error;
721 int r;
722 DBusMessageIter iter, sub, sub2;
723
724 dbus_error_init(&error);
725
726 assert(bus);
727
728 if (!(m = dbus_message_new_method_call(
729 "org.freedesktop.systemd1",
730 "/org/freedesktop/systemd1",
731 "org.freedesktop.systemd1.Manager",
732 "ListUnits"))) {
733 log_error("Could not allocate message.");
734 return -ENOMEM;
735 }
736
737 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 738 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 739 r = -EIO;
740 goto finish;
741 }
742
743 if (!dbus_message_iter_init(reply, &iter) ||
744 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
745 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
746 log_error("Failed to parse reply.");
747 r = -EIO;
748 goto finish;
749 }
750
751 printf("digraph systemd {\n");
752
753 dbus_message_iter_recurse(&iter, &sub);
754 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 755 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 756
757 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
758 log_error("Failed to parse reply.");
759 r = -EIO;
760 goto finish;
761 }
762
763 dbus_message_iter_recurse(&sub, &sub2);
764
765 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
766 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
767 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
768 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
769 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 770 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 771 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
772 log_error("Failed to parse reply.");
773 r = -EIO;
774 goto finish;
775 }
776
777 if ((r = dot_one(bus, id, unit_path)) < 0)
778 goto finish;
779
780 /* printf("\t\"%s\";\n", id); */
781 dbus_message_iter_next(&sub);
782 }
783
784 printf("}\n");
785
786 log_info(" Color legend: black = Requires\n"
787 " dark blue = Requisite\n"
788 " dark grey = Wants\n"
789 " red = Conflicts\n"
790 " green = After\n");
791
792 if (isatty(fileno(stdout)))
793 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
794 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 795
796 r = 0;
797
798finish:
799 if (m)
800 dbus_message_unref(m);
801
802 if (reply)
803 dbus_message_unref(reply);
804
805 dbus_error_free(&error);
806
807 return r;
808}
809
810static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
811 DBusMessage *m = NULL, *reply = NULL;
812 DBusError error;
813 int r;
814 DBusMessageIter iter, sub, sub2;
815 unsigned k = 0;
816
817 dbus_error_init(&error);
818
514f4ef5
LP		 819 assert(bus);
820
ec14911e
LP		 821 pager_open();
822
7e4249b9
LP		 823 if (!(m = dbus_message_new_method_call(
824 "org.freedesktop.systemd1",
825 "/org/freedesktop/systemd1",
826 "org.freedesktop.systemd1.Manager",
827 "ListJobs"))) {
828 log_error("Could not allocate message.");
829 return -ENOMEM;
830 }
831
832 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 833 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 834 r = -EIO;
835 goto finish;
836 }
837
838 if (!dbus_message_iter_init(reply, &iter) ||
839 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
840 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
841 log_error("Failed to parse reply.");
842 r = -EIO;
843 goto finish;
844 }
845
846 dbus_message_iter_recurse(&iter, &sub);
847
f73e33d9
LP		 848 if (isatty(STDOUT_FILENO))
849 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
7e4249b9
LP		 850
851 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
852 const char *name, *type, *state, *job_path, *unit_path;
853 uint32_t id;
8fe914ec 854 char *e;
7e4249b9
LP		 855
856 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
857 log_error("Failed to parse reply.");
858 r = -EIO;
859 goto finish;
860 }
861
862 dbus_message_iter_recurse(&sub, &sub2);
863
864 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
865 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
866 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
867 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
868 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
869 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
870 log_error("Failed to parse reply.");
871 r = -EIO;
872 goto finish;
873 }
874
f73e33d9
LP		 875 e = arg_full ? NULL : ellipsize(name, 25, 33);
876 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
8fe914ec
LP		 877 free(e);
878
7e4249b9
LP		 879 k++;
880
881 dbus_message_iter_next(&sub);
882 }
883
f73e33d9
LP		 884 if (isatty(STDOUT_FILENO))
885 printf("\n%u jobs listed.\n", k);
886
7e4249b9
LP		 887 r = 0;
888
889finish:
890 if (m)
891 dbus_message_unref(m);
892
893 if (reply)
894 dbus_message_unref(reply);
895
896 dbus_error_free(&error);
897
898 return r;
899}
900
901static int load_unit(DBusConnection *bus, char **args, unsigned n) {
902 DBusMessage *m = NULL, *reply = NULL;
903 DBusError error;
904 int r;
905 unsigned i;
906
907 dbus_error_init(&error);
908
514f4ef5
LP		 909 assert(bus);
910 assert(args);
911
7e4249b9
LP		 912 for (i = 1; i < n; i++) {
913
914 if (!(m = dbus_message_new_method_call(
915 "org.freedesktop.systemd1",
916 "/org/freedesktop/systemd1",
917 "org.freedesktop.systemd1.Manager",
918 "LoadUnit"))) {
919 log_error("Could not allocate message.");
920 r = -ENOMEM;
921 goto finish;
922 }
923
924 if (!dbus_message_append_args(m,
925 DBUS_TYPE_STRING, &args[i],
926 DBUS_TYPE_INVALID)) {
927 log_error("Could not append arguments to message.");
928 r = -ENOMEM;
929 goto finish;
930 }
931
932 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 933 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 934 r = -EIO;
935 goto finish;
936 }
937
938 dbus_message_unref(m);
939 dbus_message_unref(reply);
940
941 m = reply = NULL;
942 }
943
944 r = 0;
945
946finish:
947 if (m)
948 dbus_message_unref(m);
949
950 if (reply)
951 dbus_message_unref(reply);
952
953 dbus_error_free(&error);
954
955 return r;
956}
957
958static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
959 DBusMessage *m = NULL, *reply = NULL;
960 DBusError error;
961 int r;
962 unsigned i;
963
964 dbus_error_init(&error);
965
514f4ef5
LP		 966 assert(bus);
967 assert(args);
968
ee5762e3
LP		 969 if (n <= 1)
970 return daemon_reload(bus, args, n);
971
7e4249b9
LP		 972 for (i = 1; i < n; i++) {
973 unsigned id;
974 const char *path;
975
976 if (!(m = dbus_message_new_method_call(
977 "org.freedesktop.systemd1",
978 "/org/freedesktop/systemd1",
979 "org.freedesktop.systemd1.Manager",
980 "GetJob"))) {
981 log_error("Could not allocate message.");
982 r = -ENOMEM;
983 goto finish;
984 }
985
986 if ((r = safe_atou(args[i], &id)) < 0) {
987 log_error("Failed to parse job id: %s", strerror(-r));
988 goto finish;
989 }
990
991 assert_cc(sizeof(uint32_t) == sizeof(id));
992 if (!dbus_message_append_args(m,
993 DBUS_TYPE_UINT32, &id,
994 DBUS_TYPE_INVALID)) {
995 log_error("Could not append arguments to message.");
996 r = -ENOMEM;
997 goto finish;
998 }
999
1000 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1001 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 1002 r = -EIO;
1003 goto finish;
1004 }
1005
1006 if (!dbus_message_get_args(reply, &error,
1007 DBUS_TYPE_OBJECT_PATH, &path,
1008 DBUS_TYPE_INVALID)) {
4cf5d675 1009 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 1010 r = -EIO;
1011 goto finish;
1012 }
1013
1014 dbus_message_unref(m);
1015 if (!(m = dbus_message_new_method_call(
1016 "org.freedesktop.systemd1",
1017 path,
1018 "org.freedesktop.systemd1.Job",
1019 "Cancel"))) {
1020 log_error("Could not allocate message.");
1021 r = -ENOMEM;
1022 goto finish;
1023 }
1024
1025 dbus_message_unref(reply);
1026 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1027 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 1028 r = -EIO;
1029 goto finish;
1030 }
1031
1032 dbus_message_unref(m);
1033 dbus_message_unref(reply);
1034 m = reply = NULL;
1035 }
1036
1037 r = 0;
1038
1039finish:
1040 if (m)
1041 dbus_message_unref(m);
1042
1043 if (reply)
1044 dbus_message_unref(reply);
1045
1046 dbus_error_free(&error);
1047
1048 return r;
1049}
1050
ee5762e3 1051static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
e364ad06 1052 DBusMessage *m = NULL, *reply = NULL;
45fb0699
LP		 1053 dbus_bool_t b = FALSE;
1054 DBusMessageIter iter, sub;
1055 const char
1056 *interface = "org.freedesktop.systemd1.Unit",
1057 *property = "NeedDaemonReload",
1058 *path;
1059
1060 /* We ignore all errors here, since this is used to show a warning only */
1061
1062 if (!(m = dbus_message_new_method_call(
1063 "org.freedesktop.systemd1",
1064 "/org/freedesktop/systemd1",
1065 "org.freedesktop.systemd1.Manager",
1066 "GetUnit")))
1067 goto finish;
1068
1069 if (!dbus_message_append_args(m,
1070 DBUS_TYPE_STRING, &unit,
1071 DBUS_TYPE_INVALID))
1072 goto finish;
1073
1074 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1075 goto finish;
1076
1077 if (!dbus_message_get_args(reply, NULL,
1078 DBUS_TYPE_OBJECT_PATH, &path,
1079 DBUS_TYPE_INVALID))
1080 goto finish;
1081
1082 dbus_message_unref(m);
1083 if (!(m = dbus_message_new_method_call(
1084 "org.freedesktop.systemd1",
1085 path,
1086 "org.freedesktop.DBus.Properties",
1087 "Get")))
1088 goto finish;
1089
1090 if (!dbus_message_append_args(m,
1091 DBUS_TYPE_STRING, &interface,
1092 DBUS_TYPE_STRING, &property,
1093 DBUS_TYPE_INVALID)) {
1094 goto finish;
1095 }
1096
1097 dbus_message_unref(reply);
1098 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1099 goto finish;
1100
1101 if (!dbus_message_iter_init(reply, &iter) ||
1102 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1103 goto finish;
1104
1105 dbus_message_iter_recurse(&iter, &sub);
1106
1107 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1108 goto finish;
1109
1110 dbus_message_iter_get_basic(&sub, &b);
1111
1112finish:
1113 if (m)
1114 dbus_message_unref(m);
1115
1116 if (reply)
1117 dbus_message_unref(reply);
1118
1119 return b;
1120}
1121
5e374895
LP		 1122typedef struct WaitData {
1123 Set *set;
5d44db4a 1124 char *result;
5e374895
LP		 1125} WaitData;
1126
7e4249b9
LP		 1127static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1128 DBusError error;
5e374895 1129 WaitData *d = data;
7e4249b9
LP		 1130
1131 assert(connection);
1132 assert(message);
5e374895 1133 assert(d);
7e4249b9
LP		 1134
1135 dbus_error_init(&error);
1136
54165a39
LP		 1137 log_debug("Got D-Bus request: %s.%s() on %s",
1138 dbus_message_get_interface(message),
1139 dbus_message_get_member(message),
1140 dbus_message_get_path(message));
7e4249b9
LP		 1141
1142 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1143 log_error("Warning! D-Bus connection terminated.");
1144 dbus_connection_close(connection);
1145
1146 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1147 uint32_t id;
5d44db4a 1148 const char *path, *result;
5e374895 1149 dbus_bool_t success = true;
7e4249b9 1150
5d44db4a
LP		 1151 if (dbus_message_get_args(message, &error,
1152 DBUS_TYPE_UINT32, &id,
1153 DBUS_TYPE_OBJECT_PATH, &path,
1154 DBUS_TYPE_STRING, &result,
1155 DBUS_TYPE_INVALID)) {
7e4249b9
LP		 1156 char *p;
1157
5d44db4a
LP		 1158 if ((p = set_remove(d->set, (char*) path)))
1159 free(p);
1160
1161 if (*result)
1162 d->result = strdup(result);
1163
1164 goto finish;
1165 }
1166#ifndef LEGACY
1167 dbus_error_free(&error);
1168
1169 if (dbus_message_get_args(message, &error,
1170 DBUS_TYPE_UINT32, &id,
1171 DBUS_TYPE_OBJECT_PATH, &path,
1172 DBUS_TYPE_BOOLEAN, &success,
1173 DBUS_TYPE_INVALID)) {
1174 char *p;
1175
1176 /* Compatibility with older systemd versions <
1177 * 19 during upgrades. This should be dropped
1178 * one day */
1179
5e374895 1180 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 1181 free(p);
5e374895
LP		 1182
1183 if (!success)
5d44db4a
LP		 1184 d->result = strdup("failed");
1185
1186 goto finish;
7e4249b9 1187 }
5d44db4a
LP		 1188#endif
1189
1190 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 1191 }
1192
5d44db4a 1193finish:
7e4249b9
LP		 1194 dbus_error_free(&error);
1195 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1196}
1197
479ef5d3 1198static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 1199 DBusError error;
7e4249b9
LP		 1200
1201 assert(bus);
7e4249b9 1202
f4579ce7
LP		 1203 if (private_bus)
1204 return 0;
1205
7e4249b9 1206 dbus_error_init(&error);
7e4249b9
LP		 1207 dbus_bus_add_match(bus,
1208 "type='signal',"
1209 "sender='org.freedesktop.systemd1',"
1210 "interface='org.freedesktop.systemd1.Manager',"
1211 "member='JobRemoved',"
1212 "path='/org/freedesktop/systemd1'",
1213 &error);
1214
1215 if (dbus_error_is_set(&error)) {
4cf5d675 1216 log_error("Failed to add match: %s", bus_error_message(&error));
a567261a
LP		 1217 dbus_error_free(&error);
1218 return -EIO;
7e4249b9
LP		 1219 }
1220
479ef5d3 1221 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 1222 return 0;
7e4249b9
LP		 1223}
1224
479ef5d3
LP		 1225static int wait_for_jobs(DBusConnection *bus, Set *s) {
1226 int r;
5e374895 1227 WaitData d;
479ef5d3
LP		 1228
1229 assert(bus);
1230 assert(s);
1231
5e374895
LP		 1232 zero(d);
1233 d.set = s;
5e374895
LP		 1234
1235 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 1236 log_error("Failed to add filter.");
1237 r = -ENOMEM;
1238 goto finish;
1239 }
1240
1241 while (!set_isempty(s) &&
1242 dbus_connection_read_write_dispatch(bus, -1))
1243 ;
1244
5d44db4a
LP		 1245 if (!arg_quiet && d.result) {
1246 if (streq(d.result, "timeout"))
1247 log_error("Job timed out.");
1248 else if (streq(d.result, "canceled"))
1249 log_error("Job canceled.");
1250 else if (streq(d.result, "dependency"))
1251 log_error("A dependency job failed. See system logs for details.");
8e20e31a 1252 else if (!streq(d.result, "done"))
5d44db4a
LP		 1253 log_error("Job failed. See system logs and 'systemctl status' for details.");
1254 }
5e374895 1255
8e20e31a
LP		 1256 if (streq_ptr(d.result, "timeout"))
1257 r = -ETIME;
1258 else if (streq_ptr(d.result, "canceled"))
1259 r = -ECANCELED;
1260 else if (!streq_ptr(d.result, "done"))
1261 r = -EIO;
1262 else
1263 r = 0;
1264
5d44db4a 1265 free(d.result);
479ef5d3
LP		 1266
1267finish:
1268 /* This is slightly dirty, since we don't undo the filter registration. */
1269
1270 return r;
1271}
1272
e4b61340
LP		 1273static int start_unit_one(
1274 DBusConnection *bus,
1275 const char *method,
1276 const char *name,
1277 const char *mode,
22f4096c 1278 DBusError *error,
e4b61340 1279 Set *s) {
7e4249b9 1280
7e4249b9 1281 DBusMessage *m = NULL, *reply = NULL;
45fb0699 1282 const char *path;
7e4249b9 1283 int r;
7e4249b9 1284
e4b61340
LP		 1285 assert(bus);
1286 assert(method);
1287 assert(name);
1288 assert(mode);
22f4096c 1289 assert(error);
6e905d93 1290 assert(arg_no_block || s);
7e4249b9
LP		 1291
1292 if (!(m = dbus_message_new_method_call(
1293 "org.freedesktop.systemd1",
1294 "/org/freedesktop/systemd1",
1295 "org.freedesktop.systemd1.Manager",
e4b61340 1296 method))) {
7e4249b9
LP		 1297 log_error("Could not allocate message.");
1298 r = -ENOMEM;
1299 goto finish;
1300 }
1301
1302 if (!dbus_message_append_args(m,
e4b61340 1303 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 1304 DBUS_TYPE_STRING, &mode,
1305 DBUS_TYPE_INVALID)) {
1306 log_error("Could not append arguments to message.");
1307 r = -ENOMEM;
1308 goto finish;
1309 }
1310
22f4096c 1311 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
e4b61340 1312
22f4096c 1313 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
e4b61340
LP		 1314 /* There's always a fallback possible for
1315 * legacy actions. */
706900b7 1316 r = -EADDRNOTAVAIL;
e4b61340
LP		 1317 goto finish;
1318 }
1319
22f4096c 1320 log_error("Failed to issue method call: %s", bus_error_message(error));
7e4249b9
LP		 1321 r = -EIO;
1322 goto finish;
1323 }
1324
22f4096c 1325 if (!dbus_message_get_args(reply, error,
45fb0699
LP		 1326 DBUS_TYPE_OBJECT_PATH, &path,
1327 DBUS_TYPE_INVALID)) {
22f4096c 1328 log_error("Failed to parse reply: %s", bus_error_message(error));
45fb0699
LP		 1329 r = -EIO;
1330 goto finish;
1331 }
1332
ee5762e3 1333 if (need_daemon_reload(bus, name))
45fb0699 1334 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
af2d49f7 1335 arg_user ? "--user" : "--system");
45fb0699 1336
6e905d93 1337 if (!arg_no_block) {
e4b61340 1338 char *p;
7e4249b9 1339
7e4249b9
LP		 1340 if (!(p = strdup(path))) {
1341 log_error("Failed to duplicate path.");
1342 r = -ENOMEM;
1343 goto finish;
1344 }
1345
1346 if ((r = set_put(s, p)) < 0) {
e4b61340 1347 free(p);
7e4249b9
LP		 1348 log_error("Failed to add path to set.");
1349 goto finish;
1350 }
e4b61340 1351 }
7e4249b9 1352
706900b7 1353 r = 0;
22f4096c 1354
7e4249b9 1355finish:
7e4249b9
LP		 1356 if (m)
1357 dbus_message_unref(m);
1358
1359 if (reply)
1360 dbus_message_unref(reply);
1361
7e4249b9
LP		 1362 return r;
1363}
1364
514f4ef5
LP		 1365static enum action verb_to_action(const char *verb) {
1366 if (streq(verb, "halt"))
1367 return ACTION_HALT;
1368 else if (streq(verb, "poweroff"))
1369 return ACTION_POWEROFF;
1370 else if (streq(verb, "reboot"))
1371 return ACTION_REBOOT;
20b09ca7
LP		 1372 else if (streq(verb, "kexec"))
1373 return ACTION_KEXEC;
514f4ef5
LP		 1374 else if (streq(verb, "rescue"))
1375 return ACTION_RESCUE;
1376 else if (streq(verb, "emergency"))
1377 return ACTION_EMERGENCY;
1378 else if (streq(verb, "default"))
1379 return ACTION_DEFAULT;
20b09ca7
LP		 1380 else if (streq(verb, "exit"))
1381 return ACTION_EXIT;
514f4ef5
LP		 1382 else
1383 return ACTION_INVALID;
1384}
1385
e4b61340
LP		 1386static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1387
1388 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1389 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1390 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1391 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
20b09ca7 1392 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
514f4ef5
LP		 1393 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1394 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1395 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1396 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1397 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1398 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
20b09ca7
LP		 1399 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1400 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
e4b61340
LP		 1401 };
1402
22f4096c 1403 int r, ret = 0;
e4b61340 1404 unsigned i;
514f4ef5 1405 const char *method, *mode, *one_name;
e4b61340 1406 Set *s = NULL;
22f4096c
LP		 1407 DBusError error;
1408
1409 dbus_error_init(&error);
e4b61340 1410
514f4ef5
LP		 1411 assert(bus);
1412
501fc174
LP		 1413 spawn_ask_password_agent();
1414
e4b61340
LP		 1415 if (arg_action == ACTION_SYSTEMCTL) {
1416 method =
6f28c033
LP		 1417 streq(args[0], "stop") ? "StopUnit" :
1418 streq(args[0], "reload") ? "ReloadUnit" :
1419 streq(args[0], "restart") ? "RestartUnit" :
aa5939a3
MS		 1420 streq(args[0], "try-restart") ||
1421 streq(args[0], "condrestart") ? "TryRestartUnit" :
6f28c033 1422 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
9d8a57ff 1423 streq(args[0], "reload-or-try-restart") ||
64e5f1b7 1424 streq(args[0], "condreload") ||
aa5939a3 1425 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
6f28c033 1426 "StartUnit";
e4b61340
LP		 1427
1428 mode =
514f4ef5
LP		 1429 (streq(args[0], "isolate") ||
1430 streq(args[0], "rescue") ||
e67c3609 1431 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
e4b61340 1432
514f4ef5 1433 one_name = table[verb_to_action(args[0])];
e4b61340 1434
e4b61340
LP		 1435 } else {
1436 assert(arg_action < ELEMENTSOF(table));
1437 assert(table[arg_action]);
1438
1439 method = "StartUnit";
514f4ef5
LP		 1440
1441 mode = (arg_action == ACTION_EMERGENCY ||
6f0d624e
LP		 1442 arg_action == ACTION_RESCUE ||
1443 arg_action == ACTION_RUNLEVEL2 ||
1444 arg_action == ACTION_RUNLEVEL3 ||
1445 arg_action == ACTION_RUNLEVEL4 ||
1446 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
514f4ef5
LP		 1447
1448 one_name = table[arg_action];
1449 }
1450
6e905d93 1451 if (!arg_no_block) {
22f4096c
LP		 1452 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1453 log_error("Could not watch jobs: %s", strerror(-ret));
514f4ef5
LP		 1454 goto finish;
1455 }
1456
1457 if (!(s = set_new(string_hash_func, string_compare_func))) {
1458 log_error("Failed to allocate set.");
22f4096c 1459 ret = -ENOMEM;
514f4ef5
LP		 1460 goto finish;
1461 }
e4b61340
LP		 1462 }
1463
514f4ef5 1464 if (one_name) {
22f4096c 1465 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
514f4ef5
LP		 1466 goto finish;
1467 } else {
e4b61340 1468 for (i = 1; i < n; i++)
22f4096c 1469 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
706900b7 1470 ret = translate_bus_error_to_exit_status(r, &error);
22f4096c
LP		 1471 dbus_error_free(&error);
1472 }
e4b61340
LP		 1473 }
1474
6e905d93 1475 if (!arg_no_block)
22f4096c
LP		 1476 if ((r = wait_for_jobs(bus, s)) < 0) {
1477 ret = r;
fbc43921 1478 goto finish;
22f4096c 1479 }
514f4ef5 1480
e4b61340
LP		 1481finish:
1482 if (s)
1483 set_free_free(s);
1484
22f4096c
LP		 1485 dbus_error_free(&error);
1486
1487 return ret;
e4b61340
LP		 1488}
1489
514f4ef5 1490static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1491 int r;
1492
514f4ef5
LP		 1493 assert(bus);
1494 assert(args);
1495
20b09ca7
LP		 1496 if (arg_force &&
1497 (streq(args[0], "halt") ||
1498 streq(args[0], "poweroff") ||
1499 streq(args[0], "reboot") ||
1500 streq(args[0], "kexec") ||
1501 streq(args[0], "exit")))
1502 return daemon_reload(bus, args, n);
1503
983d9c90
LP		 1504 r = start_unit(bus, args, n);
1505
1506 if (r >= 0)
1507 warn_wall(verb_to_action(args[0]));
514f4ef5 1508
983d9c90 1509 return r;
514f4ef5
LP		 1510}
1511
0183528f
LP		 1512static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1513 DBusMessage *m = NULL, *reply = NULL;
1514 const char
1515 *interface = "org.freedesktop.systemd1.Unit",
1516 *property = "ActiveState";
22f4096c 1517 int r = 3; /* According to LSB: "program is not running" */
0183528f
LP		 1518 DBusError error;
1519 unsigned i;
1520
1521 assert(bus);
1522 assert(args);
1523
1524 dbus_error_init(&error);
1525
1526 for (i = 1; i < n; i++) {
1527 const char *path = NULL;
1528 const char *state;
1529 DBusMessageIter iter, sub;
1530
1531 if (!(m = dbus_message_new_method_call(
1532 "org.freedesktop.systemd1",
1533 "/org/freedesktop/systemd1",
1534 "org.freedesktop.systemd1.Manager",
1535 "GetUnit"))) {
1536 log_error("Could not allocate message.");
1537 r = -ENOMEM;
1538 goto finish;
1539 }
1540
1541 if (!dbus_message_append_args(m,
1542 DBUS_TYPE_STRING, &args[i],
1543 DBUS_TYPE_INVALID)) {
1544 log_error("Could not append arguments to message.");
1545 r = -ENOMEM;
1546 goto finish;
1547 }
1548
1549 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1550
1551 /* Hmm, cannot figure out anything about this unit... */
1552 if (!arg_quiet)
1553 puts("unknown");
1554
ed2d7a44 1555 dbus_error_free(&error);
8a0867d6 1556 dbus_message_unref(m);
0183528f
LP		 1557 continue;
1558 }
1559
1560 if (!dbus_message_get_args(reply, &error,
1561 DBUS_TYPE_OBJECT_PATH, &path,
1562 DBUS_TYPE_INVALID)) {
4cf5d675 1563 log_error("Failed to parse reply: %s", bus_error_message(&error));
0183528f
LP		 1564 r = -EIO;
1565 goto finish;
1566 }
1567
1568 dbus_message_unref(m);
1569 if (!(m = dbus_message_new_method_call(
1570 "org.freedesktop.systemd1",
1571 path,
1572 "org.freedesktop.DBus.Properties",
1573 "Get"))) {
1574 log_error("Could not allocate message.");
1575 r = -ENOMEM;
1576 goto finish;
1577 }
1578
1579 if (!dbus_message_append_args(m,
1580 DBUS_TYPE_STRING, &interface,
1581 DBUS_TYPE_STRING, &property,
1582 DBUS_TYPE_INVALID)) {
1583 log_error("Could not append arguments to message.");
1584 r = -ENOMEM;
1585 goto finish;
1586 }
1587
1588 dbus_message_unref(reply);
1589 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1590 log_error("Failed to issue method call: %s", bus_error_message(&error));
0183528f
LP		 1591 r = -EIO;
1592 goto finish;
1593 }
1594
1595 if (!dbus_message_iter_init(reply, &iter) ||
1596 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1597 log_error("Failed to parse reply.");
1598 r = -EIO;
1599 goto finish;
1600 }
1601
1602 dbus_message_iter_recurse(&iter, &sub);
1603
1604 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1605 log_error("Failed to parse reply.");
1606 r = -EIO;
1607 goto finish;
1608 }
1609
1610 dbus_message_iter_get_basic(&sub, &state);
1611
1612 if (!arg_quiet)
1613 puts(state);
1614
f1e36d67 1615 if (streq(state, "active") || streq(state, "reloading"))
0183528f
LP		 1616 r = 0;
1617
1618 dbus_message_unref(m);
1619 dbus_message_unref(reply);
1620 m = reply = NULL;
1621 }
1622
1623finish:
1624 if (m)
1625 dbus_message_unref(m);
1626
1627 if (reply)
1628 dbus_message_unref(reply);
1629
1630 dbus_error_free(&error);
1631
1632 return r;
48220598
LP		 1633}
1634
8a0867d6
LP		 1635static int kill_unit(DBusConnection *bus, char **args, unsigned n) {
1636 DBusMessage *m = NULL, *reply = NULL;
1637 int r = 0;
1638 DBusError error;
1639 unsigned i;
1640
1641 assert(bus);
1642 assert(args);
1643
1644 dbus_error_init(&error);
1645
1646 if (!arg_kill_who)
1647 arg_kill_who = "all";
1648
1649 if (!arg_kill_mode)
1650 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
1651
1652 for (i = 1; i < n; i++) {
1653
1654 if (!(m = dbus_message_new_method_call(
1655 "org.freedesktop.systemd1",
1656 "/org/freedesktop/systemd1",
1657 "org.freedesktop.systemd1.Manager",
1658 "KillUnit"))) {
1659 log_error("Could not allocate message.");
1660 r = -ENOMEM;
1661 goto finish;
1662 }
1663
1664 if (!dbus_message_append_args(m,
1665 DBUS_TYPE_STRING, &args[i],
1666 DBUS_TYPE_STRING, &arg_kill_who,
1667 DBUS_TYPE_STRING, &arg_kill_mode,
1668 DBUS_TYPE_INT32, &arg_signal,
1669 DBUS_TYPE_INVALID)) {
1670 log_error("Could not append arguments to message.");
1671 r = -ENOMEM;
1672 goto finish;
1673 }
1674
1675 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1676 log_error("Failed to issue method call: %s", bus_error_message(&error));
1677 dbus_error_free(&error);
1678 r = -EIO;
1679 }
1680
1681 dbus_message_unref(m);
1682
1683 if (reply)
1684 dbus_message_unref(reply);
1685 m = reply = NULL;
1686 }
1687
1688finish:
1689 if (m)
1690 dbus_message_unref(m);
1691
1692 if (reply)
1693 dbus_message_unref(reply);
1694
1695 dbus_error_free(&error);
1696
1697 return r;
1698}
1699
582a507f 1700typedef struct ExecStatusInfo {
0129173a
LP		 1701 char *name;
1702
582a507f
LP		 1703 char *path;
1704 char **argv;
1705
b708e7ce
LP		 1706 bool ignore;
1707
582a507f
LP		 1708 usec_t start_timestamp;
1709 usec_t exit_timestamp;
1710 pid_t pid;
1711 int code;
1712 int status;
1713
1714 LIST_FIELDS(struct ExecStatusInfo, exec);
1715} ExecStatusInfo;
1716
1717static void exec_status_info_free(ExecStatusInfo *i) {
1718 assert(i);
1719
0129173a 1720 free(i->name);
582a507f
LP		 1721 free(i->path);
1722 strv_free(i->argv);
1723 free(i);
1724}
1725
1726static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1727 uint64_t start_timestamp, exit_timestamp;
1728 DBusMessageIter sub2, sub3;
1729 const char*path;
1730 unsigned n;
1731 uint32_t pid;
1732 int32_t code, status;
b708e7ce 1733 dbus_bool_t ignore;
582a507f
LP		 1734
1735 assert(i);
1736 assert(i);
1737
1738 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1739 return -EIO;
1740
1741 dbus_message_iter_recurse(sub, &sub2);
1742
1743 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1744 return -EIO;
1745
1746 if (!(i->path = strdup(path)))
1747 return -ENOMEM;
1748
1749 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1750 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1751 return -EIO;
1752
1753 n = 0;
1754 dbus_message_iter_recurse(&sub2, &sub3);
1755 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1756 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1757 dbus_message_iter_next(&sub3);
1758 n++;
1759 }
1760
1761
1762 if (!(i->argv = new0(char*, n+1)))
1763 return -ENOMEM;
1764
1765 n = 0;
1766 dbus_message_iter_recurse(&sub2, &sub3);
1767 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1768 const char *s;
1769
1770 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1771 dbus_message_iter_get_basic(&sub3, &s);
1772 dbus_message_iter_next(&sub3);
1773
1774 if (!(i->argv[n++] = strdup(s)))
1775 return -ENOMEM;
1776 }
1777
1778 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1779 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f
LP		 1780 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1781 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1782 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1783 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1784 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1785 return -EIO;
1786
b708e7ce 1787 i->ignore = ignore;
582a507f
LP		 1788 i->start_timestamp = (usec_t) start_timestamp;
1789 i->exit_timestamp = (usec_t) exit_timestamp;
1790 i->pid = (pid_t) pid;
1791 i->code = code;
1792 i->status = status;
1793
1794 return 0;
1795}
1796
61cbdc4b
LP		 1797typedef struct UnitStatusInfo {
1798 const char *id;
1799 const char *load_state;
1800 const char *active_state;
1801 const char *sub_state;
1802
1803 const char *description;
4a9e2fff 1804 const char *following;
61cbdc4b 1805
c31b4423 1806 const char *path;
61cbdc4b
LP		 1807 const char *default_control_group;
1808
584be568
LP		 1809 usec_t inactive_exit_timestamp;
1810 usec_t active_enter_timestamp;
1811 usec_t active_exit_timestamp;
1812 usec_t inactive_enter_timestamp;
1813
45fb0699
LP		 1814 bool need_daemon_reload;
1815
61cbdc4b
LP		 1816 /* Service */
1817 pid_t main_pid;
1818 pid_t control_pid;
1819 const char *status_text;
d06dacd0 1820 bool running:1;
07459bb6 1821#ifdef HAVE_SYSV_COMPAT
d06dacd0 1822 bool is_sysv:1;
07459bb6 1823#endif
61cbdc4b
LP		 1824
1825 usec_t start_timestamp;
1826 usec_t exit_timestamp;
1827
1828 int exit_code, exit_status;
1829
1830 /* Socket */
1831 unsigned n_accepted;
1832 unsigned n_connections;
b8131a87 1833 bool accept;
61cbdc4b
LP		 1834
1835 /* Device */
1836 const char *sysfs_path;
1837
1838 /* Mount, Automount */
1839 const char *where;
1840
1841 /* Swap */
1842 const char *what;
582a507f
LP		 1843
1844 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1845} UnitStatusInfo;
1846
1847static void print_status_info(UnitStatusInfo *i) {
582a507f 1848 ExecStatusInfo *p;
2ee68f72 1849 const char *on, *off, *ss;
584be568
LP		 1850 usec_t timestamp;
1851 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1852 char since2[FORMAT_TIMESTAMP_MAX], *s2;
582a507f 1853
61cbdc4b
LP		 1854 assert(i);
1855
1856 /* This shows pretty information about a unit. See
1857 * print_property() for a low-level property printer */
1858
1859 printf("%s", strna(i->id));
1860
1861 if (i->description && !streq_ptr(i->id, i->description))
1862 printf(" - %s", i->description);
1863
1864 printf("\n");
1865
4a9e2fff
LP		 1866 if (i->following)
1867 printf("\t Follow: unit currently follows state of %s\n", i->following);
1868
00dc5d76
LP		 1869 if (streq_ptr(i->load_state, "failed") ||
1870 streq_ptr(i->load_state, "banned")) {
c31b4423
LP		 1871 on = ansi_highlight(true);
1872 off = ansi_highlight(false);
1873 } else
1874 on = off = "";
1875
1876 if (i->path)
1877 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1878 else
c31b4423 1879 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1880
2ee68f72
LP		 1881 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1882
fdf20a31 1883 if (streq_ptr(i->active_state, "failed")) {
2ee68f72
LP		 1884 on = ansi_highlight(true);
1885 off = ansi_highlight(false);
1886 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1887 on = ansi_highlight_green(true);
1888 off = ansi_highlight_green(false);
1889 } else
1890 on = off = "";
1891
1892 if (ss)
584be568 1893 printf("\t Active: %s%s (%s)%s",
2ee68f72
LP		 1894 on,
1895 strna(i->active_state),
1896 ss,
1897 off);
1898 else
584be568 1899 printf("\t Active: %s%s%s",
2ee68f72
LP		 1900 on,
1901 strna(i->active_state),
1902 off);
61cbdc4b 1903
584be568
LP		 1904 timestamp = (streq_ptr(i->active_state, "active") ||
1905 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1906 (streq_ptr(i->active_state, "inactive") ||
fdf20a31 1907 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
584be568
LP		 1908 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1909 i->active_exit_timestamp;
1910
1911 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1912 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1913
1914 if (s1)
538da63d 1915 printf(" since %s; %s\n", s2, s1);
584be568 1916 else if (s2)
538da63d 1917 printf(" since %s\n", s2);
584be568
LP		 1918 else
1919 printf("\n");
1920
61cbdc4b
LP		 1921 if (i->sysfs_path)
1922 printf("\t Device: %s\n", i->sysfs_path);
9feeba4b 1923 if (i->where)
61cbdc4b 1924 printf("\t Where: %s\n", i->where);
9feeba4b 1925 if (i->what)
61cbdc4b
LP		 1926 printf("\t What: %s\n", i->what);
1927
b8131a87 1928 if (i->accept)
61cbdc4b
LP		 1929 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1930
582a507f
LP		 1931 LIST_FOREACH(exec, p, i->exec) {
1932 char *t;
9a57c629 1933 bool good;
582a507f
LP		 1934
1935 /* Only show exited processes here */
1936 if (p->code == 0)
1937 continue;
1938
1939 t = strv_join(p->argv, " ");
9a57c629 1940 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
582a507f
LP		 1941 free(t);
1942
9a57c629
LP		 1943#ifdef HAVE_SYSV_COMPAT
1944 if (i->is_sysv)
1945 good = is_clean_exit_lsb(p->code, p->status);
1946 else
1947#endif
1948 good = is_clean_exit(p->code, p->status);
1949
1950 if (!good) {
1951 on = ansi_highlight(true);
1952 off = ansi_highlight(false);
1953 } else
1954 on = off = "";
1955
1956 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
1957
d06dacd0
LP		 1958 if (p->code == CLD_EXITED) {
1959 const char *c;
1960
582a507f 1961 printf("status=%i", p->status);
d06dacd0 1962
07459bb6 1963#ifdef HAVE_SYSV_COMPAT
d06dacd0 1964 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1965#else
1966 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1967#endif
d06dacd0
LP		 1968 printf("/%s", c);
1969
1970 } else
582a507f 1971 printf("signal=%s", signal_to_string(p->status));
9a57c629
LP		 1972
1973 printf(")%s\n", off);
1974
1975 on = off = NULL;
582a507f
LP		 1976
1977 if (i->main_pid == p->pid &&
1978 i->start_timestamp == p->start_timestamp &&
1979 i->exit_timestamp == p->start_timestamp)
1980 /* Let's not show this twice */
1981 i->main_pid = 0;
1982
1983 if (p->pid == i->control_pid)
1984 i->control_pid = 0;
1985 }
1986
61cbdc4b
LP		 1987 if (i->main_pid > 0 || i->control_pid > 0) {
1988 printf("\t");
1989
1990 if (i->main_pid > 0) {
f3d41013 1991 printf("Main PID: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 1992
1993 if (i->running) {
1994 char *t = NULL;
1995 get_process_name(i->main_pid, &t);
1996 if (t) {
1997 printf(" (%s)", t);
1998 free(t);
1999 }
6d4fc029 2000 } else if (i->exit_code > 0) {
61cbdc4b
LP		 2001 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2002
d06dacd0
LP		 2003 if (i->exit_code == CLD_EXITED) {
2004 const char *c;
2005
61cbdc4b 2006 printf("status=%i", i->exit_status);
d06dacd0 2007
07459bb6 2008#ifdef HAVE_SYSV_COMPAT
d06dacd0 2009 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 2010#else
2011 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
2012#endif
d06dacd0
LP		 2013 printf("/%s", c);
2014
2015 } else
582a507f 2016 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 2017 printf(")");
2018 }
61cbdc4b
LP		 2019 }
2020
2021 if (i->main_pid > 0 && i->control_pid > 0)
2022 printf(";");
2023
2024 if (i->control_pid > 0) {
2025 char *t = NULL;
2026
2027 printf(" Control: %u", (unsigned) i->control_pid);
2028
2029 get_process_name(i->control_pid, &t);
2030 if (t) {
2031 printf(" (%s)", t);
2032 free(t);
2033 }
2034 }
2035
2036 printf("\n");
2037 }
2038
17bb7382
LP		 2039 if (i->status_text)
2040 printf("\t Status: \"%s\"\n", i->status_text);
2041
c59760ee 2042 if (i->default_control_group) {
ab35fb1b
LP		 2043 unsigned c;
2044
61cbdc4b 2045 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b
LP		 2046
2047 if ((c = columns()) > 18)
2048 c -= 18;
2049 else
2050 c = 0;
2051
35d2e7ec 2052 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
c59760ee 2053 }
45fb0699
LP		 2054
2055 if (i->need_daemon_reload)
2cc59dbf
LP		 2056 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2057 ansi_highlight(true),
2058 ansi_highlight(false),
af2d49f7 2059 arg_user ? "--user" : "--system");
61cbdc4b
LP		 2060}
2061
2062static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2063
2064 switch (dbus_message_iter_get_arg_type(iter)) {
2065
2066 case DBUS_TYPE_STRING: {
2067 const char *s;
2068
2069 dbus_message_iter_get_basic(iter, &s);
2070
2071 if (s[0]) {
2072 if (streq(name, "Id"))
2073 i->id = s;
2074 else if (streq(name, "LoadState"))
2075 i->load_state = s;
2076 else if (streq(name, "ActiveState"))
2077 i->active_state = s;
2078 else if (streq(name, "SubState"))
2079 i->sub_state = s;
2080 else if (streq(name, "Description"))
2081 i->description = s;
2082 else if (streq(name, "FragmentPath"))
c31b4423 2083 i->path = s;
07459bb6 2084#ifdef HAVE_SYSV_COMPAT
d06dacd0
LP		 2085 else if (streq(name, "SysVPath")) {
2086 i->is_sysv = true;
c31b4423 2087 i->path = s;
07459bb6
FF		 2088 }
2089#endif
2090 else if (streq(name, "DefaultControlGroup"))
61cbdc4b
LP		 2091 i->default_control_group = s;
2092 else if (streq(name, "StatusText"))
2093 i->status_text = s;
2094 else if (streq(name, "SysFSPath"))
2095 i->sysfs_path = s;
2096 else if (streq(name, "Where"))
2097 i->where = s;
2098 else if (streq(name, "What"))
2099 i->what = s;
4a9e2fff
LP		 2100 else if (streq(name, "Following"))
2101 i->following = s;
61cbdc4b
LP		 2102 }
2103
2104 break;
2105 }
2106
b8131a87
LP		 2107 case DBUS_TYPE_BOOLEAN: {
2108 dbus_bool_t b;
2109
2110 dbus_message_iter_get_basic(iter, &b);
2111
2112 if (streq(name, "Accept"))
2113 i->accept = b;
45fb0699
LP		 2114 else if (streq(name, "NeedDaemonReload"))
2115 i->need_daemon_reload = b;
b8131a87
LP		 2116
2117 break;
2118 }
2119
61cbdc4b
LP		 2120 case DBUS_TYPE_UINT32: {
2121 uint32_t u;
2122
2123 dbus_message_iter_get_basic(iter, &u);
2124
2125 if (streq(name, "MainPID")) {
2126 if (u > 0) {
2127 i->main_pid = (pid_t) u;
2128 i->running = true;
2129 }
2130 } else if (streq(name, "ControlPID"))
2131 i->control_pid = (pid_t) u;
2132 else if (streq(name, "ExecMainPID")) {
2133 if (u > 0)
2134 i->main_pid = (pid_t) u;
2135 } else if (streq(name, "NAccepted"))
2136 i->n_accepted = u;
2137 else if (streq(name, "NConnections"))
2138 i->n_connections = u;
2139
2140 break;
2141 }
2142
2143 case DBUS_TYPE_INT32: {
2144 int32_t j;
2145
2146 dbus_message_iter_get_basic(iter, &j);
2147
2148 if (streq(name, "ExecMainCode"))
2149 i->exit_code = (int) j;
2150 else if (streq(name, "ExecMainStatus"))
2151 i->exit_status = (int) j;
2152
2153 break;
2154 }
2155
2156 case DBUS_TYPE_UINT64: {
2157 uint64_t u;
2158
2159 dbus_message_iter_get_basic(iter, &u);
2160
2161 if (streq(name, "ExecMainStartTimestamp"))
2162 i->start_timestamp = (usec_t) u;
2163 else if (streq(name, "ExecMainExitTimestamp"))
2164 i->exit_timestamp = (usec_t) u;
584be568
LP		 2165 else if (streq(name, "ActiveEnterTimestamp"))
2166 i->active_enter_timestamp = (usec_t) u;
2167 else if (streq(name, "InactiveEnterTimestamp"))
2168 i->inactive_enter_timestamp = (usec_t) u;
2169 else if (streq(name, "InactiveExitTimestamp"))
2170 i->inactive_exit_timestamp = (usec_t) u;
2171 else if (streq(name, "ActiveExitTimestamp"))
2172 i->active_exit_timestamp = (usec_t) u;
61cbdc4b
LP		 2173
2174 break;
2175 }
582a507f
LP		 2176
2177 case DBUS_TYPE_ARRAY: {
2178
2179 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2180 startswith(name, "Exec")) {
2181 DBusMessageIter sub;
2182
2183 dbus_message_iter_recurse(iter, &sub);
2184 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2185 ExecStatusInfo *info;
2186 int r;
2187
2188 if (!(info = new0(ExecStatusInfo, 1)))
2189 return -ENOMEM;
2190
0129173a
LP		 2191 if (!(info->name = strdup(name))) {
2192 free(info);
2193 return -ENOMEM;
2194 }
2195
582a507f
LP		 2196 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2197 free(info);
2198 return r;
2199 }
2200
2201 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2202
2203 dbus_message_iter_next(&sub);
2204 }
2205 }
2206
2207 break;
2208 }
61cbdc4b
LP		 2209 }
2210
2211 return 0;
2212}
2213
48220598
LP		 2214static int print_property(const char *name, DBusMessageIter *iter) {
2215 assert(name);
2216 assert(iter);
2217
61cbdc4b
LP		 2218 /* This is a low-level property printer, see
2219 * print_status_info() for the nicer output */
2220
ea4a240d 2221 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 2222 return 0;
2223
2224 switch (dbus_message_iter_get_arg_type(iter)) {
2225
2226 case DBUS_TYPE_STRING: {
2227 const char *s;
2228 dbus_message_iter_get_basic(iter, &s);
2229
2230 if (arg_all || s[0])
2231 printf("%s=%s\n", name, s);
2232
2233 return 0;
2234 }
2235
2236 case DBUS_TYPE_BOOLEAN: {
2237 dbus_bool_t b;
2238 dbus_message_iter_get_basic(iter, &b);
2239 printf("%s=%s\n", name, yes_no(b));
2240
2241 return 0;
2242 }
2243
2244 case DBUS_TYPE_UINT64: {
2245 uint64_t u;
2246 dbus_message_iter_get_basic(iter, &u);
2247
2248 /* Yes, heuristics! But we can change this check
2249 * should it turn out to not be sufficient */
2250
14ad1d14 2251 if (strstr(name, "Timestamp")) {
48220598
LP		 2252 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
2253
2254 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
2255 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 2256 } else if (strstr(name, "USec")) {
2257 char timespan[FORMAT_TIMESPAN_MAX];
2258
2259 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 2260 } else
2261 printf("%s=%llu\n", name, (unsigned long long) u);
2262
2263 return 0;
2264 }
2265
2266 case DBUS_TYPE_UINT32: {
2267 uint32_t u;
2268 dbus_message_iter_get_basic(iter, &u);
2269
5bd07073 2270 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 2271 printf("%s=%04o\n", name, u);
2272 else
2273 printf("%s=%u\n", name, (unsigned) u);
2274
2275 return 0;
2276 }
2277
2278 case DBUS_TYPE_INT32: {
2279 int32_t i;
2280 dbus_message_iter_get_basic(iter, &i);
2281
2282 printf("%s=%i\n", name, (int) i);
2283 return 0;
2284 }
2285
05d6a3b6
LP		 2286 case DBUS_TYPE_DOUBLE: {
2287 double d;
2288 dbus_message_iter_get_basic(iter, &d);
2289
2290 printf("%s=%g\n", name, d);
2291 return 0;
2292 }
2293
48220598
LP		 2294 case DBUS_TYPE_STRUCT: {
2295 DBusMessageIter sub;
2296 dbus_message_iter_recurse(iter, &sub);
2297
ebf57b80 2298 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 2299 uint32_t u;
2300
2301 dbus_message_iter_get_basic(&sub, &u);
2302
2303 if (u)
2304 printf("%s=%u\n", name, (unsigned) u);
2305 else if (arg_all)
2306 printf("%s=\n", name);
2307
2308 return 0;
ebf57b80 2309 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 2310 const char *s;
2311
2312 dbus_message_iter_get_basic(&sub, &s);
2313
2314 if (arg_all || s[0])
2315 printf("%s=%s\n", name, s);
2316
2317 return 0;
2318 }
2319
2320 break;
2321 }
2322
2323 case DBUS_TYPE_ARRAY:
2324
2325 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2326 DBusMessageIter sub;
2327 bool space = false;
2328
2329 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 2330 if (arg_all ||
2331 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2332 printf("%s=", name);
2333
2334 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2335 const char *s;
2336
2337 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2338 dbus_message_iter_get_basic(&sub, &s);
2339 printf("%s%s", space ? " " : "", s);
2340
2341 space = true;
2342 dbus_message_iter_next(&sub);
2343 }
2344
2345 puts("");
2346 }
2347
ebf57b80 2348 return 0;
582a507f 2349
82c121a4
LP		 2350 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2351 DBusMessageIter sub;
2352
2353 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 2354 if (arg_all ||
2355 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2356 printf("%s=", name);
2357
2358 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2359 uint8_t u;
ebf57b80 2360
82c121a4
LP		 2361 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2362 dbus_message_iter_get_basic(&sub, &u);
2363 printf("%02x", u);
2364
2365 dbus_message_iter_next(&sub);
2366 }
2367
2368 puts("");
2369 }
2370
2371 return 0;
582a507f 2372
ebf57b80
LP		 2373 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2374 DBusMessageIter sub, sub2;
2375
2376 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 2377 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2378 const char *type, *path;
2379
2380 dbus_message_iter_recurse(&sub, &sub2);
2381
2382 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2383 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2384 printf("%s=%s\n", type, path);
2385
2386 dbus_message_iter_next(&sub);
2387 }
2388
707e5e52 2389 return 0;
582a507f 2390
707e5e52
LP		 2391 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2392 DBusMessageIter sub, sub2;
2393
2394 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 2395 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2396 const char *base;
2397 uint64_t value, next_elapse;
2398
2399 dbus_message_iter_recurse(&sub, &sub2);
2400
2401 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2402 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 2403 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2404 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2405
2406 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 2407 base,
552e4331
LP		 2408 format_timespan(timespan1, sizeof(timespan1), value),
2409 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2410 }
fe68089d
LP		 2411
2412 dbus_message_iter_next(&sub);
2413 }
2414
2415 return 0;
fe68089d 2416
582a507f
LP		 2417 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2418 DBusMessageIter sub;
fe68089d
LP		 2419
2420 dbus_message_iter_recurse(iter, &sub);
fe68089d 2421 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 2422 ExecStatusInfo info;
fe68089d 2423
582a507f
LP		 2424 zero(info);
2425 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 2426 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 2427 char *t;
2428
2429 t = strv_join(info.argv, " ");
2430
b708e7ce 2431 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		 2432 name,
2433 strna(info.path),
2434 strna(t),
b708e7ce 2435 yes_no(info.ignore),
582a507f
LP		 2436 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2437 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2438 (unsigned) info. pid,
2439 sigchld_code_to_string(info.code),
2440 info.status,
2441 info.code == CLD_EXITED ? "" : "/",
2442 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 2443
582a507f 2444 free(t);
fe68089d
LP		 2445 }
2446
582a507f
LP		 2447 free(info.path);
2448 strv_free(info.argv);
707e5e52
LP		 2449
2450 dbus_message_iter_next(&sub);
2451 }
2452
48220598
LP		 2453 return 0;
2454 }
2455
2456 break;
2457 }
2458
2459 if (arg_all)
2460 printf("%s=[unprintable]\n", name);
2461
2462 return 0;
2463}
2464
be8088a2 2465static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 2466 DBusMessage *m = NULL, *reply = NULL;
2467 const char *interface = "";
2468 int r;
2469 DBusError error;
2470 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 2471 UnitStatusInfo info;
582a507f 2472 ExecStatusInfo *p;
48220598
LP		 2473
2474 assert(bus);
2475 assert(path);
61cbdc4b 2476 assert(new_line);
48220598 2477
61cbdc4b 2478 zero(info);
48220598
LP		 2479 dbus_error_init(&error);
2480
2481 if (!(m = dbus_message_new_method_call(
2482 "org.freedesktop.systemd1",
2483 path,
2484 "org.freedesktop.DBus.Properties",
2485 "GetAll"))) {
2486 log_error("Could not allocate message.");
2487 r = -ENOMEM;
2488 goto finish;
2489 }
2490
2491 if (!dbus_message_append_args(m,
2492 DBUS_TYPE_STRING, &interface,
2493 DBUS_TYPE_INVALID)) {
2494 log_error("Could not append arguments to message.");
2495 r = -ENOMEM;
2496 goto finish;
2497 }
2498
2499 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2500 log_error("Failed to issue method call: %s", bus_error_message(&error));
48220598
LP		 2501 r = -EIO;
2502 goto finish;
2503 }
2504
2505 if (!dbus_message_iter_init(reply, &iter) ||
2506 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2507 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2508 log_error("Failed to parse reply.");
2509 r = -EIO;
2510 goto finish;
2511 }
2512
2513 dbus_message_iter_recurse(&iter, &sub);
2514
61cbdc4b
LP		 2515 if (*new_line)
2516 printf("\n");
2517
2518 *new_line = true;
2519
48220598
LP		 2520 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2521 const char *name;
2522
2523 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2524 log_error("Failed to parse reply.");
2525 r = -EIO;
2526 goto finish;
2527 }
2528
2529 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2530
48220598
LP		 2531 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2532 log_error("Failed to parse reply.");
2533 r = -EIO;
2534 goto finish;
2535 }
2536
2537 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2538 log_error("Failed to parse reply.");
2539 r = -EIO;
2540 goto finish;
2541 }
2542
2543 dbus_message_iter_recurse(&sub2, &sub3);
2544
61cbdc4b
LP		 2545 if (show_properties)
2546 r = print_property(name, &sub3);
2547 else
2548 r = status_property(name, &sub3, &info);
2549
2550 if (r < 0) {
48220598
LP		 2551 log_error("Failed to parse reply.");
2552 r = -EIO;
2553 goto finish;
2554 }
2555
2556 dbus_message_iter_next(&sub);
2557 }
2558
f1e36d67
LP		 2559 r = 0;
2560
22f4096c
LP		 2561 if (!show_properties)
2562 print_status_info(&info);
f1e36d67 2563
22f4096c 2564 if (!streq_ptr(info.active_state, "active") &&
be8088a2
LP		 2565 !streq_ptr(info.active_state, "reloading") &&
2566 streq(verb, "status"))
22f4096c
LP		 2567 /* According to LSB: "program not running" */
2568 r = 3;
61cbdc4b 2569
582a507f
LP		 2570 while ((p = info.exec)) {
2571 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2572 exec_status_info_free(p);
2573 }
2574
48220598
LP		 2575finish:
2576 if (m)
2577 dbus_message_unref(m);
2578
2579 if (reply)
2580 dbus_message_unref(reply);
2581
2582 dbus_error_free(&error);
2583
2584 return r;
2585}
2586
2587static int show(DBusConnection *bus, char **args, unsigned n) {
2588 DBusMessage *m = NULL, *reply = NULL;
22f4096c 2589 int r, ret = 0;
48220598
LP		 2590 DBusError error;
2591 unsigned i;
61cbdc4b 2592 bool show_properties, new_line = false;
48220598
LP		 2593
2594 assert(bus);
2595 assert(args);
2596
2597 dbus_error_init(&error);
2598
61cbdc4b
LP		 2599 show_properties = !streq(args[0], "status");
2600
ec14911e
LP		 2601 if (show_properties)
2602 pager_open();
2603
61cbdc4b 2604 if (show_properties && n <= 1) {
48220598
LP		 2605 /* If not argument is specified inspect the manager
2606 * itself */
2607
be8088a2 2608 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2609 goto finish;
2610 }
2611
2612 for (i = 1; i < n; i++) {
2613 const char *path = NULL;
2614 uint32_t id;
2615
598b557b
LP		 2616 if (safe_atou32(args[i], &id) < 0) {
2617
2618 /* Interpret as unit name */
48220598
LP		 2619
2620 if (!(m = dbus_message_new_method_call(
2621 "org.freedesktop.systemd1",
2622 "/org/freedesktop/systemd1",
2623 "org.freedesktop.systemd1.Manager",
e87d1818 2624 "LoadUnit"))) {
48220598 2625 log_error("Could not allocate message.");
22f4096c 2626 ret = -ENOMEM;
48220598
LP		 2627 goto finish;
2628 }
2629
2630 if (!dbus_message_append_args(m,
2631 DBUS_TYPE_STRING, &args[i],
2632 DBUS_TYPE_INVALID)) {
2633 log_error("Could not append arguments to message.");
22f4096c 2634 ret = -ENOMEM;
48220598
LP		 2635 goto finish;
2636 }
2637
ed2d7a44
LP		 2638 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2639
2640 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
4cf5d675 2641 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2642 ret = -EIO;
ed2d7a44
LP		 2643 goto finish;
2644 }
2645
2646 dbus_error_free(&error);
2647
2648 dbus_message_unref(m);
2649 if (!(m = dbus_message_new_method_call(
2650 "org.freedesktop.systemd1",
2651 "/org/freedesktop/systemd1",
2652 "org.freedesktop.systemd1.Manager",
2653 "GetUnit"))) {
2654 log_error("Could not allocate message.");
22f4096c 2655 ret = -ENOMEM;
ed2d7a44
LP		 2656 goto finish;
2657 }
2658
2659 if (!dbus_message_append_args(m,
2660 DBUS_TYPE_STRING, &args[i],
2661 DBUS_TYPE_INVALID)) {
2662 log_error("Could not append arguments to message.");
22f4096c 2663 ret = -ENOMEM;
ed2d7a44
LP		 2664 goto finish;
2665 }
2666
2667 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2668 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c
LP		 2669
2670 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2671 ret = 4; /* According to LSB: "program or service status is unknown" */
2672 else
2673 ret = -EIO;
ed2d7a44
LP		 2674 goto finish;
2675 }
2676 }
2677
598b557b
LP		 2678 } else if (show_properties) {
2679
2680 /* Interpret as job id */
48220598
LP		 2681
2682 if (!(m = dbus_message_new_method_call(
2683 "org.freedesktop.systemd1",
2684 "/org/freedesktop/systemd1",
2685 "org.freedesktop.systemd1.Manager",
2686 "GetJob"))) {
2687 log_error("Could not allocate message.");
22f4096c 2688 ret = -ENOMEM;
48220598
LP		 2689 goto finish;
2690 }
2691
2692 if (!dbus_message_append_args(m,
2693 DBUS_TYPE_UINT32, &id,
2694 DBUS_TYPE_INVALID)) {
2695 log_error("Could not append arguments to message.");
22f4096c 2696 ret = -ENOMEM;
48220598
LP		 2697 goto finish;
2698 }
48220598 2699
598b557b 2700 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2701 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2702 ret = -EIO;
598b557b
LP		 2703 goto finish;
2704 }
2705 } else {
2706
2707 /* Interpret as PID */
2708
2709 if (!(m = dbus_message_new_method_call(
2710 "org.freedesktop.systemd1",
2711 "/org/freedesktop/systemd1",
2712 "org.freedesktop.systemd1.Manager",
2713 "GetUnitByPID"))) {
2714 log_error("Could not allocate message.");
22f4096c 2715 ret = -ENOMEM;
598b557b
LP		 2716 goto finish;
2717 }
2718
2719 if (!dbus_message_append_args(m,
2720 DBUS_TYPE_UINT32, &id,
2721 DBUS_TYPE_INVALID)) {
2722 log_error("Could not append arguments to message.");
22f4096c 2723 ret = -ENOMEM;
598b557b
LP		 2724 goto finish;
2725 }
2726
ed2d7a44 2727 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2728 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2729 ret = -EIO;
ed2d7a44
LP		 2730 goto finish;
2731 }
48220598
LP		 2732 }
2733
2734 if (!dbus_message_get_args(reply, &error,
2735 DBUS_TYPE_OBJECT_PATH, &path,
2736 DBUS_TYPE_INVALID)) {
4cf5d675 2737 log_error("Failed to parse reply: %s", bus_error_message(&error));
22f4096c 2738 ret = -EIO;
48220598
LP		 2739 goto finish;
2740 }
2741
be8088a2 2742 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
22f4096c 2743 ret = r;
48220598
LP		 2744
2745 dbus_message_unref(m);
2746 dbus_message_unref(reply);
2747 m = reply = NULL;
2748 }
2749
48220598
LP		 2750finish:
2751 if (m)
2752 dbus_message_unref(m);
2753
2754 if (reply)
2755 dbus_message_unref(reply);
2756
2757 dbus_error_free(&error);
2758
22f4096c 2759 return ret;
0183528f
LP		 2760}
2761
7e4249b9
LP		 2762static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2763 DBusError error;
2764 DBusMessage *m = NULL, *reply = NULL;
2765
2766 assert(connection);
2767 assert(message);
2768
2769 dbus_error_init(&error);
2770
54165a39
LP		 2771 log_debug("Got D-Bus request: %s.%s() on %s",
2772 dbus_message_get_interface(message),
2773 dbus_message_get_member(message),
2774 dbus_message_get_path(message));
7e4249b9
LP		 2775
2776 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2777 log_error("Warning! D-Bus connection terminated.");
2778 dbus_connection_close(connection);
2779
2780 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2781 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2782 const char *id, *path;
2783
2784 if (!dbus_message_get_args(message, &error,
2785 DBUS_TYPE_STRING, &id,
2786 DBUS_TYPE_OBJECT_PATH, &path,
2787 DBUS_TYPE_INVALID))
4cf5d675 2788 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2789 else if (streq(dbus_message_get_member(message), "UnitNew"))
2790 printf("Unit %s added.\n", id);
2791 else
2792 printf("Unit %s removed.\n", id);
2793
2794 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2795 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2796 uint32_t id;
5d44db4a 2797 const char *path, *result;
7e4249b9
LP		 2798
2799 if (!dbus_message_get_args(message, &error,
2800 DBUS_TYPE_UINT32, &id,
2801 DBUS_TYPE_OBJECT_PATH, &path,
5d44db4a 2802 DBUS_TYPE_STRING, &result,
7e4249b9 2803 DBUS_TYPE_INVALID))
4cf5d675 2804 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2805 else if (streq(dbus_message_get_member(message), "JobNew"))
2806 printf("Job %u added.\n", id);
2807 else
2808 printf("Job %u removed.\n", id);
2809
2810
c4e2ceae 2811 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
7e4249b9
LP		 2812
2813 const char *path, *interface, *property = "Id";
2814 DBusMessageIter iter, sub;
2815
2816 path = dbus_message_get_path(message);
c4e2ceae
LP		 2817
2818 if (!dbus_message_get_args(message, &error,
2819 DBUS_TYPE_STRING, &interface,
2820 DBUS_TYPE_INVALID)) {
4cf5d675 2821 log_error("Failed to parse message: %s", bus_error_message(&error));
c4e2ceae
LP		 2822 goto finish;
2823 }
2824
2825 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2826 !streq(interface, "org.freedesktop.systemd1.Unit"))
2827 goto finish;
7e4249b9
LP		 2828
2829 if (!(m = dbus_message_new_method_call(
2830 "org.freedesktop.systemd1",
2831 path,
2832 "org.freedesktop.DBus.Properties",
2833 "Get"))) {
2834 log_error("Could not allocate message.");
2835 goto oom;
2836 }
2837
2838 if (!dbus_message_append_args(m,
2839 DBUS_TYPE_STRING, &interface,
2840 DBUS_TYPE_STRING, &property,
2841 DBUS_TYPE_INVALID)) {
2842 log_error("Could not append arguments to message.");
2843 goto finish;
2844 }
2845
2846 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
4cf5d675 2847 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2848 goto finish;
2849 }
2850
2851 if (!dbus_message_iter_init(reply, &iter) ||
2852 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2853 log_error("Failed to parse reply.");
2854 goto finish;
2855 }
2856
2857 dbus_message_iter_recurse(&iter, &sub);
2858
2859 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2860 const char *id;
2861
2862 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2863 log_error("Failed to parse reply.");
2864 goto finish;
2865 }
2866
2867 dbus_message_iter_get_basic(&sub, &id);
2868 printf("Unit %s changed.\n", id);
2869 } else {
2870 uint32_t id;
2871
2872 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2873 log_error("Failed to parse reply.");
2874 goto finish;
2875 }
2876
2877 dbus_message_iter_get_basic(&sub, &id);
2878 printf("Job %u changed.\n", id);
2879 }
2880 }
2881
2882finish:
2883 if (m)
2884 dbus_message_unref(m);
2885
2886 if (reply)
2887 dbus_message_unref(reply);
2888
2889 dbus_error_free(&error);
2890 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2891
2892oom:
2893 if (m)
2894 dbus_message_unref(m);
2895
2896 if (reply)
2897 dbus_message_unref(reply);
2898
2899 dbus_error_free(&error);
2900 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2901}
2902
2903static int monitor(DBusConnection *bus, char **args, unsigned n) {
2904 DBusMessage *m = NULL, *reply = NULL;
2905 DBusError error;
2906 int r;
2907
2908 dbus_error_init(&error);
2909
f4579ce7
LP		 2910 if (!private_bus) {
2911 dbus_bus_add_match(bus,
2912 "type='signal',"
2913 "sender='org.freedesktop.systemd1',"
2914 "interface='org.freedesktop.systemd1.Manager',"
2915 "path='/org/freedesktop/systemd1'",
2916 &error);
7e4249b9 2917
f4579ce7 2918 if (dbus_error_is_set(&error)) {
4cf5d675 2919 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2920 r = -EIO;
2921 goto finish;
2922 }
7e4249b9 2923
f4579ce7
LP		 2924 dbus_bus_add_match(bus,
2925 "type='signal',"
2926 "sender='org.freedesktop.systemd1',"
c4e2ceae
LP		 2927 "interface='org.freedesktop.DBus.Properties',"
2928 "member='PropertiesChanged'",
f4579ce7 2929 &error);
7e4249b9 2930
f4579ce7 2931 if (dbus_error_is_set(&error)) {
4cf5d675 2932 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2933 r = -EIO;
2934 goto finish;
2935 }
7e4249b9
LP		 2936 }
2937
2938 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2939 log_error("Failed to add filter.");
2940 r = -ENOMEM;
2941 goto finish;
2942 }
2943
2944 if (!(m = dbus_message_new_method_call(
2945 "org.freedesktop.systemd1",
2946 "/org/freedesktop/systemd1",
2947 "org.freedesktop.systemd1.Manager",
2948 "Subscribe"))) {
2949 log_error("Could not allocate message.");
2950 r = -ENOMEM;
2951 goto finish;
2952 }
2953
2954 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2955 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2956 r = -EIO;
2957 goto finish;
2958 }
2959
2960 while (dbus_connection_read_write_dispatch(bus, -1))
2961 ;
2962
2963 r = 0;
2964
2965finish:
2966
2967 /* This is slightly dirty, since we don't undo the filter or the matches. */
2968
2969 if (m)
2970 dbus_message_unref(m);
2971
2972 if (reply)
2973 dbus_message_unref(reply);
2974
2975 dbus_error_free(&error);
2976
2977 return r;
2978}
2979
2980static int dump(DBusConnection *bus, char **args, unsigned n) {
2981 DBusMessage *m = NULL, *reply = NULL;
2982 DBusError error;
2983 int r;
2984 const char *text;
2985
2986 dbus_error_init(&error);
2987
ec14911e
LP		 2988 pager_open();
2989
7e4249b9
LP		 2990 if (!(m = dbus_message_new_method_call(
2991 "org.freedesktop.systemd1",
2992 "/org/freedesktop/systemd1",
2993 "org.freedesktop.systemd1.Manager",
2994 "Dump"))) {
2995 log_error("Could not allocate message.");
2996 return -ENOMEM;
2997 }
2998
2999 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3000 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3001 r = -EIO;
3002 goto finish;
3003 }
3004
3005 if (!dbus_message_get_args(reply, &error,
3006 DBUS_TYPE_STRING, &text,
3007 DBUS_TYPE_INVALID)) {
4cf5d675 3008 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 3009 r = -EIO;
3010 goto finish;
3011 }
3012
3013 fputs(text, stdout);
3014
3015 r = 0;
3016
3017finish:
3018 if (m)
3019 dbus_message_unref(m);
3020
3021 if (reply)
3022 dbus_message_unref(reply);
3023
3024 dbus_error_free(&error);
3025
3026 return r;
3027}
3028
3029static int snapshot(DBusConnection *bus, char **args, unsigned n) {
3030 DBusMessage *m = NULL, *reply = NULL;
3031 DBusError error;
3032 int r;
3033 const char *name = "", *path, *id;
3034 dbus_bool_t cleanup = FALSE;
3035 DBusMessageIter iter, sub;
3036 const char
3037 *interface = "org.freedesktop.systemd1.Unit",
3038 *property = "Id";
3039
3040 dbus_error_init(&error);
3041
3042 if (!(m = dbus_message_new_method_call(
3043 "org.freedesktop.systemd1",
3044 "/org/freedesktop/systemd1",
3045 "org.freedesktop.systemd1.Manager",
3046 "CreateSnapshot"))) {
3047 log_error("Could not allocate message.");
3048 return -ENOMEM;
3049 }
3050
3051 if (n > 1)
3052 name = args[1];
3053
3054 if (!dbus_message_append_args(m,
3055 DBUS_TYPE_STRING, &name,
3056 DBUS_TYPE_BOOLEAN, &cleanup,
3057 DBUS_TYPE_INVALID)) {
3058 log_error("Could not append arguments to message.");
3059 r = -ENOMEM;
3060 goto finish;
3061 }
3062
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));
7e4249b9
LP		 3065 r = -EIO;
3066 goto finish;
3067 }
3068
3069 if (!dbus_message_get_args(reply, &error,
3070 DBUS_TYPE_OBJECT_PATH, &path,
3071 DBUS_TYPE_INVALID)) {
4cf5d675 3072 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 3073 r = -EIO;
3074 goto finish;
3075 }
3076
3077 dbus_message_unref(m);
3078 if (!(m = dbus_message_new_method_call(
3079 "org.freedesktop.systemd1",
3080 path,
3081 "org.freedesktop.DBus.Properties",
3082 "Get"))) {
3083 log_error("Could not allocate message.");
3084 return -ENOMEM;
3085 }
3086
3087 if (!dbus_message_append_args(m,
3088 DBUS_TYPE_STRING, &interface,
3089 DBUS_TYPE_STRING, &property,
3090 DBUS_TYPE_INVALID)) {
3091 log_error("Could not append arguments to message.");
3092 r = -ENOMEM;
3093 goto finish;
3094 }
3095
3096 dbus_message_unref(reply);
3097 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3098 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3099 r = -EIO;
3100 goto finish;
3101 }
3102
3103 if (!dbus_message_iter_init(reply, &iter) ||
3104 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3105 log_error("Failed to parse reply.");
3106 r = -EIO;
3107 goto finish;
3108 }
3109
3110 dbus_message_iter_recurse(&iter, &sub);
3111
3112 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3113 log_error("Failed to parse reply.");
3114 r = -EIO;
3115 goto finish;
3116 }
3117
3118 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 3119
3120 if (!arg_quiet)
3121 puts(id);
7e4249b9
LP		 3122 r = 0;
3123
3124finish:
3125 if (m)
3126 dbus_message_unref(m);
3127
3128 if (reply)
3129 dbus_message_unref(reply);
3130
3131 dbus_error_free(&error);
3132
3133 return r;
3134}
3135
6759e7a7
LP		 3136static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
3137 DBusMessage *m = NULL, *reply = NULL;
3138 int r;
3139 DBusError error;
3140 unsigned i;
3141
3142 assert(bus);
3143 assert(args);
3144
3145 dbus_error_init(&error);
3146
3147 for (i = 1; i < n; i++) {
3148 const char *path = NULL;
3149
3150 if (!(m = dbus_message_new_method_call(
3151 "org.freedesktop.systemd1",
3152 "/org/freedesktop/systemd1",
3153 "org.freedesktop.systemd1.Manager",
3154 "GetUnit"))) {
3155 log_error("Could not allocate message.");
3156 r = -ENOMEM;
3157 goto finish;
3158 }
3159
3160 if (!dbus_message_append_args(m,
3161 DBUS_TYPE_STRING, &args[i],
3162 DBUS_TYPE_INVALID)) {
3163 log_error("Could not append arguments to message.");
3164 r = -ENOMEM;
3165 goto finish;
3166 }
3167
3168 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3169 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3170 r = -EIO;
3171 goto finish;
3172 }
3173
3174 if (!dbus_message_get_args(reply, &error,
3175 DBUS_TYPE_OBJECT_PATH, &path,
3176 DBUS_TYPE_INVALID)) {
4cf5d675 3177 log_error("Failed to parse reply: %s", bus_error_message(&error));
6759e7a7
LP		 3178 r = -EIO;
3179 goto finish;
3180 }
3181
3182 dbus_message_unref(m);
3183 if (!(m = dbus_message_new_method_call(
3184 "org.freedesktop.systemd1",
3185 path,
3186 "org.freedesktop.systemd1.Snapshot",
3187 "Remove"))) {
3188 log_error("Could not allocate message.");
3189 r = -ENOMEM;
3190 goto finish;
3191 }
3192
3193 dbus_message_unref(reply);
3194 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3195 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3196 r = -EIO;
3197 goto finish;
3198 }
3199
3200 dbus_message_unref(m);
3201 dbus_message_unref(reply);
3202 m = reply = NULL;
3203 }
3204
3205 r = 0;
3206
3207finish:
3208 if (m)
3209 dbus_message_unref(m);
3210
3211 if (reply)
3212 dbus_message_unref(reply);
3213
3214 dbus_error_free(&error);
3215
3216 return r;
3217}
3218
ee5762e3 3219static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 3220 DBusMessage *m = NULL, *reply = NULL;
3221 DBusError error;
3222 int r;
3223 const char *method;
3224
3225 dbus_error_init(&error);
3226
e4b61340
LP		 3227 if (arg_action == ACTION_RELOAD)
3228 method = "Reload";
3229 else if (arg_action == ACTION_REEXEC)
3230 method = "Reexecute";
3231 else {
3232 assert(arg_action == ACTION_SYSTEMCTL);
3233
3234 method =
20b09ca7
LP		 3235 streq(args[0], "clear-jobs") ||
3236 streq(args[0], "cancel") ? "ClearJobs" :
3237 streq(args[0], "daemon-reexec") ? "Reexecute" :
3238 streq(args[0], "reset-failed") ? "ResetFailed" :
3239 streq(args[0], "halt") ? "Halt" :
3240 streq(args[0], "poweroff") ? "PowerOff" :
3241 streq(args[0], "reboot") ? "Reboot" :
3242 streq(args[0], "kexec") ? "KExec" :
3243 streq(args[0], "exit") ? "Exit" :
3244 /* "daemon-reload" */ "Reload";
e4b61340 3245 }
7e4249b9
LP		 3246
3247 if (!(m = dbus_message_new_method_call(
3248 "org.freedesktop.systemd1",
3249 "/org/freedesktop/systemd1",
3250 "org.freedesktop.systemd1.Manager",
3251 method))) {
3252 log_error("Could not allocate message.");
3253 return -ENOMEM;
3254 }
3255
3256 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 3257
3258 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3259 /* There's always a fallback possible for
3260 * legacy actions. */
aabd9b11 3261 r = -EADDRNOTAVAIL;
e4b61340
LP		 3262 goto finish;
3263 }
3264
4cf5d675 3265 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3266 r = -EIO;
3267 goto finish;
3268 }
3269
aabd9b11 3270 r = 0;
7e4249b9
LP		 3271
3272finish:
3273 if (m)
3274 dbus_message_unref(m);
3275
3276 if (reply)
3277 dbus_message_unref(reply);
3278
3279 dbus_error_free(&error);
3280
3281 return r;
3282}
3283
fdf20a31 3284static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
5632e374
LP		 3285 DBusMessage *m = NULL, *reply = NULL;
3286 unsigned i;
3287 int r;
3288 DBusError error;
3289
3290 assert(bus);
3291 dbus_error_init(&error);
3292
3293 if (n <= 1)
ee5762e3 3294 return daemon_reload(bus, args, n);
5632e374
LP		 3295
3296 for (i = 1; i < n; i++) {
3297
3298 if (!(m = dbus_message_new_method_call(
3299 "org.freedesktop.systemd1",
3300 "/org/freedesktop/systemd1",
3301 "org.freedesktop.systemd1.Manager",
fdf20a31 3302 "ResetFailedUnit"))) {
5632e374
LP		 3303 log_error("Could not allocate message.");
3304 r = -ENOMEM;
3305 goto finish;
3306 }
3307
3308 if (!dbus_message_append_args(m,
3309 DBUS_TYPE_STRING, args + i,
3310 DBUS_TYPE_INVALID)) {
3311 log_error("Could not append arguments to message.");
3312 r = -ENOMEM;
3313 goto finish;
3314 }
3315
3316 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3317 log_error("Failed to issue method call: %s", bus_error_message(&error));
5632e374
LP		 3318 r = -EIO;
3319 goto finish;
3320 }
3321
3322 dbus_message_unref(m);
3323 dbus_message_unref(reply);
3324 m = reply = NULL;
3325 }
3326
3327 r = 0;
3328
3329finish:
3330 if (m)
3331 dbus_message_unref(m);
3332
3333 if (reply)
3334 dbus_message_unref(reply);
3335
3336 dbus_error_free(&error);
3337
3338 return r;
3339}
3340
7e4249b9
LP		 3341static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3342 DBusMessage *m = NULL, *reply = NULL;
3343 DBusError error;
3344 DBusMessageIter iter, sub, sub2;
3345 int r;
3346 const char
3347 *interface = "org.freedesktop.systemd1.Manager",
3348 *property = "Environment";
3349
3350 dbus_error_init(&error);
3351
ec14911e
LP		 3352 pager_open();
3353
7e4249b9
LP		 3354 if (!(m = dbus_message_new_method_call(
3355 "org.freedesktop.systemd1",
3356 "/org/freedesktop/systemd1",
3357 "org.freedesktop.DBus.Properties",
3358 "Get"))) {
3359 log_error("Could not allocate message.");
3360 return -ENOMEM;
3361 }
3362
3363 if (!dbus_message_append_args(m,
3364 DBUS_TYPE_STRING, &interface,
3365 DBUS_TYPE_STRING, &property,
3366 DBUS_TYPE_INVALID)) {
3367 log_error("Could not append arguments to message.");
3368 r = -ENOMEM;
3369 goto finish;
3370 }
3371
3372 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3373 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3374 r = -EIO;
3375 goto finish;
3376 }
3377
3378 if (!dbus_message_iter_init(reply, &iter) ||
3379 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3380 log_error("Failed to parse reply.");
3381 r = -EIO;
3382 goto finish;
3383 }
3384
3385 dbus_message_iter_recurse(&iter, &sub);
3386
3387 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3388 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3389 log_error("Failed to parse reply.");
3390 r = -EIO;
3391 goto finish;
3392 }
3393
3394 dbus_message_iter_recurse(&sub, &sub2);
3395
3396 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3397 const char *text;
3398
3399 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3400 log_error("Failed to parse reply.");
3401 r = -EIO;
3402 goto finish;
3403 }
3404
3405 dbus_message_iter_get_basic(&sub2, &text);
3406 printf("%s\n", text);
3407
3408 dbus_message_iter_next(&sub2);
3409 }
3410
3411 r = 0;
3412
3413finish:
3414 if (m)
3415 dbus_message_unref(m);
3416
3417 if (reply)
3418 dbus_message_unref(reply);
3419
3420 dbus_error_free(&error);
3421
3422 return r;
3423}
3424
3425static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3426 DBusMessage *m = NULL, *reply = NULL;
3427 DBusError error;
3428 int r;
3429 const char *method;
3430 DBusMessageIter iter, sub;
3431 unsigned i;
3432
3433 dbus_error_init(&error);
3434
3435 method = streq(args[0], "set-environment")
3436 ? "SetEnvironment"
3437 : "UnsetEnvironment";
3438
3439 if (!(m = dbus_message_new_method_call(
3440 "org.freedesktop.systemd1",
3441 "/org/freedesktop/systemd1",
3442 "org.freedesktop.systemd1.Manager",
3443 method))) {
3444
3445 log_error("Could not allocate message.");
3446 return -ENOMEM;
3447 }
3448
3449 dbus_message_iter_init_append(m, &iter);
3450
3451 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3452 log_error("Could not append arguments to message.");
3453 r = -ENOMEM;
3454 goto finish;
3455 }
3456
3457 for (i = 1; i < n; i++)
3458 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3459 log_error("Could not append arguments to message.");
3460 r = -ENOMEM;
3461 goto finish;
3462 }
3463
3464 if (!dbus_message_iter_close_container(&iter, &sub)) {
3465 log_error("Could not append arguments to message.");
3466 r = -ENOMEM;
3467 goto finish;
3468 }
3469
3470 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3471 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3472 r = -EIO;
3473 goto finish;
3474 }
3475
3476 r = 0;
3477
3478finish:
3479 if (m)
3480 dbus_message_unref(m);
3481
3482 if (reply)
3483 dbus_message_unref(reply);
3484
3485 dbus_error_free(&error);
3486
3487 return r;
3488}
3489
ee5762e3
LP		 3490typedef struct {
3491 char *name;
3492 char *path;
3493
3494 char **aliases;
3495 char **wanted_by;
3496} InstallInfo;
3497
3498static Hashmap *will_install = NULL, *have_installed = NULL;
3499static Set *remove_symlinks_to = NULL;
560d8f23 3500static unsigned n_symlinks = 0;
ee5762e3
LP		 3501
3502static void install_info_free(InstallInfo *i) {
3503 assert(i);
3504
3505 free(i->name);
3506 free(i->path);
3507 strv_free(i->aliases);
3508 strv_free(i->wanted_by);
3509 free(i);
3510}
3511
3512static void install_info_hashmap_free(Hashmap *m) {
3513 InstallInfo *i;
3514
3515 while ((i = hashmap_steal_first(m)))
3516 install_info_free(i);
3517
3518 hashmap_free(m);
3519}
3520
ee5762e3
LP		 3521static int install_info_add(const char *name) {
3522 InstallInfo *i;
3523 int r;
3524
3525 assert(will_install);
3526
b9c0d441 3527 if (!unit_name_is_valid_no_type(name, true)) {
71fad675 3528 log_warning("Unit name %s is not a valid unit name.", name);
ee5762e3 3529 return -EINVAL;
71fad675 3530 }
ee5762e3
LP		 3531
3532 if (hashmap_get(have_installed, name) ||
3533 hashmap_get(will_install, name))
3534 return 0;
3535
3536 if (!(i = new0(InstallInfo, 1))) {
3537 r = -ENOMEM;
3538 goto fail;
3539 }
3540
3541 if (!(i->name = strdup(name))) {
3542 r = -ENOMEM;
3543 goto fail;
3544 }
3545
3546 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3547 goto fail;
3548
3549 return 0;
3550
3551fail:
3552 if (i)
3553 install_info_free(i);
3554
3555 return r;
3556}
3557
3558static int config_parse_also(
3559 const char *filename,
3560 unsigned line,
3561 const char *section,
3562 const char *lvalue,
3563 const char *rvalue,
3564 void *data,
3565 void *userdata) {
3566
3567 char *w;
3568 size_t l;
3569 char *state;
3570
3571 assert(filename);
3572 assert(lvalue);
3573 assert(rvalue);
3574
3575 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3576 char *n;
3577 int r;
3578
3579 if (!(n = strndup(w, l)))
3580 return -ENOMEM;
3581
71fad675
LP		 3582 if ((r = install_info_add(n)) < 0) {
3583 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3584 free(n);
ee5762e3 3585 return r;
71fad675
LP		 3586 }
3587
3588 free(n);
ee5762e3
LP		 3589 }
3590
3591 return 0;
3592}
3593
3594static int mark_symlink_for_removal(const char *p) {
3595 char *n;
3596 int r;
3597
3598 assert(p);
3599 assert(path_is_absolute(p));
3600
3601 if (!remove_symlinks_to)
3602 return 0;
3603
3604 if (!(n = strdup(p)))
3605 return -ENOMEM;
3606
3607 path_kill_slashes(n);
3608
3609 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3610 free(n);
3611 return r == -EEXIST ? 0 : r;
3612 }
3613
3614 return 0;
3615}
3616
3617static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3618 int r = 0;
3619 DIR *d;
3620 struct dirent *de;
3621
3622 assert(fd >= 0);
3623 assert(root);
3624 assert(deleted);
3625
3626 if (!(d = fdopendir(fd))) {
3627 close_nointr_nofail(fd);
3628 return -errno;
3629 }
3630
3631 rewinddir(d);
3632
3633 while ((de = readdir(d))) {
3634 bool is_dir = false, is_link = false;
3635
3636 if (ignore_file(de->d_name))
3637 continue;
3638
3639 if (de->d_type == DT_LNK)
3640 is_link = true;
3641 else if (de->d_type == DT_DIR)
3642 is_dir = true;
3643 else if (de->d_type == DT_UNKNOWN) {
3644 struct stat st;
3645
3646 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3647 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3648
3649 if (r == 0)
3650 r = -errno;
3651 continue;
3652 }
3653
3654 is_link = S_ISLNK(st.st_mode);
3655 is_dir = S_ISDIR(st.st_mode);
3656 } else
3657 continue;
3658
3659 if (is_dir) {
3660 int nfd, q;
3661 char *p;
3662
3663 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3664 log_error("Failed to open %s/%s: %m", root, de->d_name);
3665
3666 if (r == 0)
3667 r = -errno;
3668 continue;
3669 }
3670
3671 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3672 log_error("Failed to allocate directory string.");
3673 close_nointr_nofail(nfd);
3674 r = -ENOMEM;
3675 break;
3676 }
3677
3678 /* This will close nfd, regardless whether it succeeds or not */
3679 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3680 free(p);
3681
3682 if (r == 0)
e364ad06 3683 r = q;
ee5762e3
LP		 3684
3685 } else if (is_link) {
3686 char *p, *dest, *c;
3687 int q;
3688
3689 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3690 log_error("Failed to allocate symlink string.");
3691 r = -ENOMEM;
3692 break;
3693 }
3694
3695 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3696 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3697 free(p);
3698
3699 if (r == 0)
3700 r = q;
3701 continue;
3702 }
3703
3704 if ((c = canonicalize_file_name(dest))) {
3705 /* This might fail if the destination
3706 * is already removed */
3707
3708 free(dest);
3709 dest = c;
3710 }
3711
3712 path_kill_slashes(dest);
3713 if (set_get(remove_symlinks_to, dest)) {
3714
3715 if (!arg_quiet)
3716 log_info("rm '%s'", p);
3717
3718 if (unlink(p) < 0) {
3719 log_error("Cannot unlink symlink %s: %m", p);
3720
3721 if (r == 0)
3722 r = -errno;
3723 } else {
3724 rmdir_parents(p, config_path);
3725 path_kill_slashes(p);
3726
3727 if (!set_get(remove_symlinks_to, p)) {
3728
3729 if ((r = mark_symlink_for_removal(p)) < 0) {
3730 if (r == 0)
3731 r = q;
3732 } else
3733 *deleted = true;
3734 }
3735 }
3736 }
3737
3738 free(p);
3739 free(dest);
3740 }
3741 }
3742
3743 closedir(d);
3744
3745 return r;
3746}
3747
3748static int remove_marked_symlinks(const char *config_path) {
3749 int fd, r = 0;
3750 bool deleted;
3751
3752 assert(config_path);
3753
3754 if (set_size(remove_symlinks_to) <= 0)
3755 return 0;
3756
3757 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3758 return -errno;
3759
3760 do {
3761 int q, cfd;
3762 deleted = false;
3763
3764 if ((cfd = dup(fd)) < 0) {
3765 r = -errno;
3766 break;
3767 }
3768
3769 /* This takes possession of cfd and closes it */
3770 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3771 if (r == 0)
3772 r = q;
3773 }
3774 } while (deleted);
3775
3776 close_nointr_nofail(fd);
3777
3778 return r;
3779}
3780
3781static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3782 int r;
3783
3784 assert(old_path);
3785 assert(new_path);
3786 assert(verb);
3787
3788 if (streq(verb, "enable")) {
3789 char *dest;
3790
3791 mkdir_parents(new_path, 0755);
3792
3793 if (symlink(old_path, new_path) >= 0) {
3794
3795 if (!arg_quiet)
3796 log_info("ln -s '%s' '%s'", old_path, new_path);
3797
3798 return 0;
3799 }
3800
3801 if (errno != EEXIST) {
3802 log_error("Cannot link %s to %s: %m", old_path, new_path);
3803 return -errno;
3804 }
3805
3806 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3807
3808 if (errno == EINVAL) {
3809 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3810 return -EEXIST;
3811 }
3812
3813 log_error("readlink() failed: %s", strerror(-r));
3814 return r;
3815 }
3816
3817 if (streq(dest, old_path)) {
3818 free(dest);
3819 return 0;
3820 }
3821
3822 if (!arg_force) {
3823 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3824 free(dest);
3825 return -EEXIST;
3826 }
3827
3828 free(dest);
3829 unlink(new_path);
3830
3831 if (!arg_quiet)
3832 log_info("ln -s '%s' '%s'", old_path, new_path);
3833
3834 if (symlink(old_path, new_path) >= 0)
3835 return 0;
3836
3837 log_error("Cannot link %s to %s: %m", old_path, new_path);
3838 return -errno;
3839
3840 } else if (streq(verb, "disable")) {
3841 char *dest;
3842
3843 if ((r = mark_symlink_for_removal(old_path)) < 0)
3844 return r;
3845
3846 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3847 if (errno == ENOENT)
3848 return 0;
3849
3850 if (errno == EINVAL) {
3851 log_warning("File %s not a symlink, ignoring.", old_path);
3852 return 0;
3853 }
3854
3855 log_error("readlink() failed: %s", strerror(-r));
3856 return r;
3857 }
3858
3859 if (!streq(dest, old_path)) {
3860 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3861 free(dest);
3862 return 0;
3863 }
3864
3865 free(dest);
3866
3867 if ((r = mark_symlink_for_removal(new_path)) < 0)
3868 return r;
3869
3870 if (!arg_quiet)
3871 log_info("rm '%s'", new_path);
3872
3873 if (unlink(new_path) >= 0)
3874 return 0;
3875
3876 log_error("Cannot unlink %s: %m", new_path);
3877 return -errno;
3878
3879 } else if (streq(verb, "is-enabled")) {
3880 char *dest;
3881
3882 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3883
3884 if (errno == ENOENT || errno == EINVAL)
3885 return 0;
3886
3887 log_error("readlink() failed: %s", strerror(-r));
3888 return r;
3889 }
3890
3891 if (streq(dest, old_path)) {
3892 free(dest);
3893 return 1;
3894 }
3895
3896 return 0;
3897 }
3898
3899 assert_not_reached("Unknown action.");
3900}
3901
3902static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3903 char **s;
3904 char *alias_path = NULL;
3905 int r;
3906
3907 assert(verb);
3908 assert(i);
3909 assert(config_path);
3910
3911 STRV_FOREACH(s, i->aliases) {
3912
ee5762e3
LP		 3913 free(alias_path);
3914 if (!(alias_path = path_make_absolute(*s, config_path))) {
3915 log_error("Out of memory");
3916 r = -ENOMEM;
3917 goto finish;
3918 }
3919
3920 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3921 goto finish;
3922
3923 if (streq(verb, "disable"))
3924 rmdir_parents(alias_path, config_path);
3925 }
ee5762e3
LP		 3926 r = 0;
3927
3928finish:
3929 free(alias_path);
3930
3931 return r;
3932}
3933
3934static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3935 char **s;
3936 char *alias_path = NULL;
3937 int r;
3938
3939 assert(verb);
3940 assert(i);
3941 assert(config_path);
3942
3943 STRV_FOREACH(s, i->wanted_by) {
b9c0d441 3944 if (!unit_name_is_valid_no_type(*s, true)) {
ee5762e3
LP		 3945 log_error("Invalid name %s.", *s);
3946 r = -EINVAL;
3947 goto finish;
3948 }
3949
3950 free(alias_path);
3951 alias_path = NULL;
3952
3953 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3954 log_error("Out of memory");
3955 r = -ENOMEM;
3956 goto finish;
3957 }
3958
3959 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3960 goto finish;
3961
3962 if (streq(verb, "disable"))
3963 rmdir_parents(alias_path, config_path);
3964 }
3965
3966 r = 0;
3967
3968finish:
3969 free(alias_path);
3970
3971 return r;
3972}
3973
3974static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3975
3976 const ConfigItem items[] = {
3977 { "Alias", config_parse_strv, &i->aliases, "Install" },
3978 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3979 { "Also", config_parse_also, NULL, "Install" },
3980
3981 { NULL, NULL, NULL, NULL }
3982 };
3983
3984 char **p;
3985 char *filename = NULL;
3986 FILE *f = NULL;
3987 int r;
3988
3989 assert(paths);
3990 assert(i);
3991
3992 STRV_FOREACH(p, paths->unit_path) {
3993 int fd;
3994
3995 if (!(filename = path_make_absolute(i->name, *p))) {
3996 log_error("Out of memory");
3997 return -ENOMEM;
3998 }
3999
4000 /* Ensure that we don't follow symlinks */
4001 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
4002 if ((f = fdopen(fd, "re")))
4003 break;
4004
4005 if (errno == ELOOP) {
4006 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
4007 free(filename);
4008 return -errno;
4009 }
4010
4011 if (errno != ENOENT) {
4012 log_error("Failed to open %s: %m", filename);
4013 free(filename);
4014 return -errno;
4015 }
4016
4017 free(filename);
4018 filename = NULL;
4019 }
4020
4021 if (!f) {
c8b2e52c
LP		 4022#if defined(TARGET_FEDORA) && defined (HAVE_SYSV_COMPAT)
4023
4024 if (endswith(i->name, ".service")) {
4025 char *sysv;
4026 bool exists;
4027
4028 if (asprintf(&sysv, SYSTEM_SYSVINIT_PATH "/%s", i->name) < 0) {
4029 log_error("Out of memory");
4030 return -ENOMEM;
4031 }
4032
4033 sysv[strlen(sysv) - sizeof(".service") + 1] = 0;
4034 exists = access(sysv, F_OK) >= 0;
4035
4036 if (exists) {
4037 pid_t pid;
4038 siginfo_t status;
4039
4040 const char *argv[] = {
4041 "/sbin/chkconfig",
4042 NULL,
4043 NULL,
4044 NULL
4045 };
4046
4047 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", i->name);
4048
4049 argv[1] = file_name_from_path(sysv);
4050 argv[2] =
4051 streq(verb, "enable") ? "on" :
4052 streq(verb, "disable") ? "off" : NULL;
4053
4054 log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2]));
4055
4056 if ((pid = fork()) < 0) {
4057 log_error("Failed to fork: %m");
4058 free(sysv);
4059 return -errno;
4060 } else if (pid == 0) {
4061 execv(argv[0], (char**) argv);
4062 _exit(EXIT_FAILURE);
4063 }
4064
4065 free(sysv);
4066
4067 if ((r = wait_for_terminate(pid, &status)) < 0)
4068 return r;
4069
4070 if (status.si_code == CLD_EXITED) {
4071 if (status.si_status == 0 && (streq(verb, "enable") || streq(verb, "disable")))
4072 n_symlinks ++;
4073
4074 return status.si_status == 0 ? 0 : -EINVAL;
4075 } else
4076 return -EPROTO;
4077 }
4078
4079 free(sysv);
4080 }
4081
4082#endif
4083
ee5762e3
LP		 4084 log_error("Couldn't find %s.", i->name);
4085 return -ENOENT;
4086 }
4087
4088 i->path = filename;
4089
4090 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
4091 fclose(f);
4092 return r;
4093 }
4094
560d8f23
LP		 4095 n_symlinks += strv_length(i->aliases);
4096 n_symlinks += strv_length(i->wanted_by);
4097
ee5762e3
LP		 4098 fclose(f);
4099
4100 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
4101 return r;
4102
4103 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
4104 return r;
4105
4106 if ((r = mark_symlink_for_removal(filename)) < 0)
4107 return r;
4108
4109 if ((r = remove_marked_symlinks(config_path)) < 0)
4110 return r;
4111
4112 return 0;
4113}
4114
4115static char *get_config_path(void) {
4116
af2d49f7
LP		 4117 if (arg_user && arg_global)
4118 return strdup(USER_CONFIG_UNIT_PATH);
ee5762e3 4119
af2d49f7 4120 if (arg_user) {
ee5762e3
LP		 4121 char *p;
4122
af2d49f7 4123 if (user_config_home(&p) < 0)
ee5762e3
LP		 4124 return NULL;
4125
4126 return p;
4127 }
4128
4129 return strdup(SYSTEM_CONFIG_UNIT_PATH);
4130}
4131
4132static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
4133 DBusError error;
4134 int r;
4135 LookupPaths paths;
4136 char *config_path = NULL;
4137 unsigned j;
4138 InstallInfo *i;
4139 const char *verb = args[0];
4140
4141 dbus_error_init(&error);
4142
4143 zero(paths);
af2d49f7 4144 if ((r = lookup_paths_init(&paths, arg_user ? MANAGER_USER : MANAGER_SYSTEM)) < 0) {
ee5762e3
LP		 4145 log_error("Failed to determine lookup paths: %s", strerror(-r));
4146 goto finish;
4147 }
4148
4149 if (!(config_path = get_config_path())) {
4150 log_error("Failed to determine config path");
4151 r = -ENOMEM;
4152 goto finish;
4153 }
4154
4155 will_install = hashmap_new(string_hash_func, string_compare_func);
4156 have_installed = hashmap_new(string_hash_func, string_compare_func);
4157
4158 if (!will_install || !have_installed) {
4159 log_error("Failed to allocate unit sets.");
4160 r = -ENOMEM;
4161 goto finish;
4162 }
4163
4164 if (!arg_defaults && streq(verb, "disable"))
4165 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
4166 log_error("Failed to allocate symlink sets.");
4167 r = -ENOMEM;
4168 goto finish;
4169 }
4170
4171 for (j = 1; j < n; j++)
71fad675
LP		 4172 if ((r = install_info_add(args[j])) < 0) {
4173 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
ee5762e3 4174 goto finish;
71fad675 4175 }
ee5762e3
LP		 4176
4177 while ((i = hashmap_first(will_install))) {
4178 int q;
4179
4180 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
4181
4182 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
4183
4184 if (q < 0) {
4185 if (r == 0)
4186 r = q;
4187 goto finish;
4188 }
4189
4190 /* In test mode and found something */
4191 r = 1;
4192 break;
4193 }
4194 }
4195
4196 if (streq(verb, "is-enabled"))
4197 r = r > 0 ? 0 : -ENOENT;
560d8f23
LP		 4198 else {
4199 if (n_symlinks <= 0)
4200 log_warning("Unit files contain no applicable installation information. Ignoring.");
4201
4202 if (bus &&
4203 /* Don't try to reload anything if the user asked us to not do this */
4204 !arg_no_reload &&
4205 /* Don't try to reload anything when updating a unit globally */
4206 !arg_global &&
4207 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
af2d49f7 4208 (arg_user || sd_booted() > 0) &&
560d8f23 4209 /* Don't try to reload anything if we are running in a chroot environment */
af2d49f7 4210 (arg_user || running_in_chroot() <= 0) ) {
560d8f23 4211 int q;
ee5762e3 4212
560d8f23
LP		 4213 if ((q = daemon_reload(bus, args, n)) < 0)
4214 r = q;
4215 }
ee5762e3
LP		 4216 }
4217
4218finish:
4219 install_info_hashmap_free(will_install);
4220 install_info_hashmap_free(have_installed);
4221
4222 set_free_free(remove_symlinks_to);
4223
4224 lookup_paths_free(&paths);
4225
4226 free(config_path);
4227
4228 return r;
4229}
4230
e4b61340 4231static int systemctl_help(void) {
7e4249b9 4232
2e33c433 4233 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 4234 "Send control commands to or query the systemd manager.\n\n"
8a0867d6
LP		 4235 " -h --help Show this help\n"
4236 " --version Show package version\n"
4237 " -t --type=TYPE List only units of a particular type\n"
4238 " -p --property=NAME Show only properties by this name\n"
4239 " -a --all Show all units/properties, including dead/empty ones\n"
30732560 4240 " --failed Show only failed units\n"
8a0867d6
LP		 4241 " --full Don't ellipsize unit names on output\n"
4242 " --fail When queueing a new job, fail if conflicting jobs are\n"
4243 " pending\n"
e67c3609
LP		 4244 " --ignore-dependencies\n"
4245 " When queueing a new job, ignore all its dependencies\n"
8a0867d6
LP		 4246 " -q --quiet Suppress output\n"
4247 " --no-block Do not wait until operation finished\n"
0736af98 4248 " --no-pager Do not pipe output into a pager.\n"
af2d49f7
LP		 4249 " --system Connect to system manager\n"
4250 " --user Connect to user service manager\n"
8a0867d6
LP		 4251 " --order When generating graph for dot, show only order\n"
4252 " --require When generating graph for dot, show only requirement\n"
4253 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4254 " --global Enable/disable unit files globally\n"
4255 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4256 " configuration\n"
501fc174
LP		 4257 " --no-ask-password\n"
4258 " Do not ask for system passwords\n"
8a0867d6
LP		 4259 " --kill-mode=MODE How to send signal\n"
4260 " --kill-who=WHO Who to send signal to\n"
4261 " -s --signal=SIGNAL Which signal to send\n"
4262 " -f --force When enabling unit files, override existing symlinks\n"
4263 " When shutting down, execute action immediately\n"
4264 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 4265 "Commands:\n"
4266 " list-units List units\n"
ee5762e3
LP		 4267 " start [NAME...] Start (activate) one or more units\n"
4268 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 4269 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 4270 " restart [NAME...] Start or restart one or more units\n"
4271 " try-restart [NAME...] Restart one or more units if active\n"
4272 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4273 " otherwise start or restart\n"
4274 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4275 " otherwise restart if active\n"
7e4249b9 4276 " isolate [NAME] Start one unit and stop all others\n"
8a0867d6 4277 " kill [NAME...] Send signal to processes of a unit\n"
ee5762e3 4278 " is-active [NAME...] Check whether units are active\n"
75676b72 4279 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 4280 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3 4281 " units/jobs or the manager\n"
fdf20a31
MM		 4282 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4283 " units\n"
ee5762e3
LP		 4284 " enable [NAME...] Enable one or more unit files\n"
4285 " disable [NAME...] Disable one or more unit files\n"
4286 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 4287 " load [NAME...] Load one or more units\n"
4288 " list-jobs List jobs\n"
ee5762e3 4289 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 4290 " monitor Monitor unit/job changes\n"
4291 " dump Dump server status\n"
4445a875 4292 " dot Dump dependency graph for dot(1)\n"
7e4249b9 4293 " snapshot [NAME] Create a snapshot\n"
6759e7a7 4294 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 4295 " daemon-reload Reload systemd manager configuration\n"
4296 " daemon-reexec Reexecute systemd manager\n"
7e4249b9
LP		 4297 " show-environment Dump environment\n"
4298 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5 4299 " unset-environment [NAME...] Unset one or more environment variables\n"
20b09ca7
LP		 4300 " default Enter system default mode\n"
4301 " rescue Enter system rescue mode\n"
4302 " emergency Enter system emergency mode\n"
514f4ef5 4303 " halt Shut down and halt the system\n"
2e33c433 4304 " poweroff Shut down and power-off the system\n"
514f4ef5 4305 " reboot Shut down and reboot the system\n"
20b09ca7 4306 " kexec Shut down and reboot the system with kexec\n"
af2d49f7 4307 " exit Ask for user instance termination\n",
5b6319dc 4308 program_invocation_short_name);
7e4249b9
LP		 4309
4310 return 0;
4311}
4312
e4b61340
LP		 4313static int halt_help(void) {
4314
2e33c433 4315 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4316 "%s the system.\n\n"
4317 " --help Show this help\n"
4318 " --halt Halt the machine\n"
4319 " -p --poweroff Switch off the machine\n"
4320 " --reboot Reboot the machine\n"
2e33c433
LP		 4321 " -f --force Force immediate halt/power-off/reboot\n"
4322 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 4323 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 4324 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4325 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 4326 program_invocation_short_name,
4327 arg_action == ACTION_REBOOT ? "Reboot" :
4328 arg_action == ACTION_POWEROFF ? "Power off" :
4329 "Halt");
4330
4331 return 0;
4332}
4333
4334static int shutdown_help(void) {
4335
08e4b1c5 4336 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
e4b61340
LP		 4337 "Shut down the system.\n\n"
4338 " --help Show this help\n"
4339 " -H --halt Halt the machine\n"
4340 " -P --poweroff Power-off the machine\n"
4341 " -r --reboot Reboot the machine\n"
4342 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433 4343 " -k Don't halt/power-off/reboot, just send warnings\n"
f6144808 4344 " --no-wall Don't send wall message before halt/power-off/reboot\n"
f6144808 4345 " -c Cancel a pending shutdown\n",
e4b61340
LP		 4346 program_invocation_short_name);
4347
4348 return 0;
4349}
4350
4351static int telinit_help(void) {
4352
2e33c433 4353 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 4354 "Send control commands to the init daemon.\n\n"
4355 " --help Show this help\n"
2e33c433 4356 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 4357 "Commands:\n"
4358 " 0 Power-off the machine\n"
4359 " 6 Reboot the machine\n"
514f4ef5
LP		 4360 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4361 " 1, s, S Enter rescue mode\n"
4362 " q, Q Reload init daemon configuration\n"
4363 " u, U Reexecute init daemon\n",
e4b61340
LP		 4364 program_invocation_short_name);
4365
4366 return 0;
4367}
4368
4369static int runlevel_help(void) {
4370
2e33c433 4371 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4372 "Prints the previous and current runlevel of the init system.\n\n"
4373 " --help Show this help\n",
4374 program_invocation_short_name);
4375
4376 return 0;
4377}
4378
4379static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 4380
4381 enum {
90d473a1 4382 ARG_FAIL = 0x100,
e67c3609 4383 ARG_IGNORE_DEPENDENCIES,
35df8f27 4384 ARG_VERSION,
af2d49f7 4385 ARG_USER,
7e4249b9 4386 ARG_SYSTEM,
ee5762e3 4387 ARG_GLOBAL,
6e905d93 4388 ARG_NO_BLOCK,
611efaac 4389 ARG_NO_PAGER,
4445a875
LP		 4390 ARG_NO_WALL,
4391 ARG_ORDER,
8fe914ec 4392 ARG_REQUIRE,
ee5762e3 4393 ARG_FULL,
ee5762e3 4394 ARG_NO_RELOAD,
8a0867d6
LP		 4395 ARG_DEFAULTS,
4396 ARG_KILL_MODE,
501fc174 4397 ARG_KILL_WHO,
30732560
LP		 4398 ARG_NO_ASK_PASSWORD,
4399 ARG_FAILED
7e4249b9
LP		 4400 };
4401
4402 static const struct option options[] = {
ee5762e3 4403 { "help", no_argument, NULL, 'h' },
35df8f27 4404 { "version", no_argument, NULL, ARG_VERSION },
ee5762e3
LP		 4405 { "type", required_argument, NULL, 't' },
4406 { "property", required_argument, NULL, 'p' },
4407 { "all", no_argument, NULL, 'a' },
30732560 4408 { "failed", no_argument, NULL, ARG_FAILED },
ee5762e3
LP		 4409 { "full", no_argument, NULL, ARG_FULL },
4410 { "fail", no_argument, NULL, ARG_FAIL },
e67c3609 4411 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
af2d49f7 4412 { "user", no_argument, NULL, ARG_USER },
ee5762e3
LP		 4413 { "system", no_argument, NULL, ARG_SYSTEM },
4414 { "global", no_argument, NULL, ARG_GLOBAL },
4415 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
0736af98 4416 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
ee5762e3
LP		 4417 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4418 { "quiet", no_argument, NULL, 'q' },
4419 { "order", no_argument, NULL, ARG_ORDER },
4420 { "require", no_argument, NULL, ARG_REQUIRE },
b4f27ccc 4421 { "force", no_argument, NULL, 'f' },
ee5762e3 4422 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
f1e36d67 4423 { "defaults", no_argument, NULL, ARG_DEFAULTS },
8a0867d6
LP		 4424 { "kill-mode", required_argument, NULL, ARG_KILL_MODE },
4425 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4426 { "signal", required_argument, NULL, 's' },
501fc174 4427 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
ee5762e3 4428 { NULL, 0, NULL, 0 }
7e4249b9
LP		 4429 };
4430
4431 int c;
4432
e4b61340 4433 assert(argc >= 0);
7e4249b9
LP		 4434 assert(argv);
4435
501fc174
LP		 4436 /* Only when running as systemctl we ask for passwords */
4437 arg_ask_password = true;
4438
8a0867d6 4439 while ((c = getopt_long(argc, argv, "ht:p:aqfs:", options, NULL)) >= 0) {
7e4249b9
LP		 4440
4441 switch (c) {
4442
4443 case 'h':
e4b61340 4444 systemctl_help();
7e4249b9 4445 return 0;
35df8f27
LP		 4446
4447 case ARG_VERSION:
4448 puts(PACKAGE_STRING);
7d568925
LP		 4449 puts(DISTRIBUTION);
4450 puts(SYSTEMD_FEATURES);
35df8f27 4451 return 0;
7e4249b9
LP		 4452
4453 case 't':
4454 arg_type = optarg;
4455 break;
4456
ea4a240d
LP		 4457 case 'p': {
4458 char **l;
4459
4460 if (!(l = strv_append(arg_property, optarg)))
4461 return -ENOMEM;
4462
4463 strv_free(arg_property);
4464 arg_property = l;
48220598
LP		 4465
4466 /* If the user asked for a particular
4467 * property, show it to him, even if it is
4468 * empty. */
4469 arg_all = true;
4470 break;
ea4a240d 4471 }
48220598 4472
7e4249b9
LP		 4473 case 'a':
4474 arg_all = true;
4475 break;
4476
90d473a1 4477 case ARG_FAIL:
e67c3609
LP		 4478 arg_job_mode = "fail";
4479 break;
4480
4481 case ARG_IGNORE_DEPENDENCIES:
4482 arg_job_mode = "ignore-dependencies";
7e4249b9
LP		 4483 break;
4484
af2d49f7
LP		 4485 case ARG_USER:
4486 arg_user = true;
7e4249b9
LP		 4487 break;
4488
4489 case ARG_SYSTEM:
af2d49f7 4490 arg_user = false;
7e4249b9
LP		 4491 break;
4492
6e905d93
LP		 4493 case ARG_NO_BLOCK:
4494 arg_no_block = true;
7e4249b9
LP		 4495 break;
4496
611efaac
LP		 4497 case ARG_NO_PAGER:
4498 arg_no_pager = true;
4499 break;
0736af98 4500
514f4ef5
LP		 4501 case ARG_NO_WALL:
4502 arg_no_wall = true;
4503 break;
4504
4445a875
LP		 4505 case ARG_ORDER:
4506 arg_dot = DOT_ORDER;
4507 break;
4508
4509 case ARG_REQUIRE:
4510 arg_dot = DOT_REQUIRE;
4511 break;
4512
8fe914ec
LP		 4513 case ARG_FULL:
4514 arg_full = true;
4515 break;
4516
30732560
LP		 4517 case ARG_FAILED:
4518 arg_failed = true;
4519 break;
4520
0183528f
LP		 4521 case 'q':
4522 arg_quiet = true;
4523 break;
4524
b4f27ccc 4525 case 'f':
ee5762e3
LP		 4526 arg_force = true;
4527 break;
4528
4529 case ARG_NO_RELOAD:
4530 arg_no_reload = true;
4531 break;
4532
4533 case ARG_GLOBAL:
4534 arg_global = true;
af2d49f7 4535 arg_user = true;
ee5762e3
LP		 4536 break;
4537
4538 case ARG_DEFAULTS:
4539 arg_defaults = true;
4540 break;
4541
8a0867d6
LP		 4542 case ARG_KILL_WHO:
4543 arg_kill_who = optarg;
4544 break;
4545
4546 case ARG_KILL_MODE:
4547 arg_kill_mode = optarg;
4548 break;
4549
4550 case 's':
4551 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4552 log_error("Failed to parse signal string %s.", optarg);
4553 return -EINVAL;
4554 }
4555 break;
4556
501fc174
LP		 4557 case ARG_NO_ASK_PASSWORD:
4558 arg_ask_password = false;
4559 break;
4560
7e4249b9
LP		 4561 case '?':
4562 return -EINVAL;
4563
4564 default:
4565 log_error("Unknown option code %c", c);
4566 return -EINVAL;
4567 }
4568 }
4569
4570 return 1;
4571}
4572
e4b61340
LP		 4573static int halt_parse_argv(int argc, char *argv[]) {
4574
4575 enum {
4576 ARG_HELP = 0x100,
4577 ARG_HALT,
514f4ef5
LP		 4578 ARG_REBOOT,
4579 ARG_NO_WALL
e4b61340
LP		 4580 };
4581
4582 static const struct option options[] = {
4583 { "help", no_argument, NULL, ARG_HELP },
4584 { "halt", no_argument, NULL, ARG_HALT },
4585 { "poweroff", no_argument, NULL, 'p' },
4586 { "reboot", no_argument, NULL, ARG_REBOOT },
4587 { "force", no_argument, NULL, 'f' },
4588 { "wtmp-only", no_argument, NULL, 'w' },
4589 { "no-wtmp", no_argument, NULL, 'd' },
4590 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 4591 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4592 { NULL, 0, NULL, 0 }
4593 };
4594
4595 int c, runlevel;
4596
4597 assert(argc >= 0);
4598 assert(argv);
4599
4600 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4601 if (runlevel == '0' || runlevel == '6')
4602 arg_immediate = true;
4603
4604 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4605 switch (c) {
4606
4607 case ARG_HELP:
4608 halt_help();
4609 return 0;
4610
4611 case ARG_HALT:
4612 arg_action = ACTION_HALT;
4613 break;
4614
4615 case 'p':
a042efad
MS		 4616 if (arg_action != ACTION_REBOOT)
4617 arg_action = ACTION_POWEROFF;
e4b61340
LP		 4618 break;
4619
4620 case ARG_REBOOT:
4621 arg_action = ACTION_REBOOT;
4622 break;
4623
4624 case 'f':
4625 arg_immediate = true;
4626 break;
4627
4628 case 'w':
4629 arg_dry = true;
4630 break;
4631
4632 case 'd':
4633 arg_no_wtmp = true;
4634 break;
4635
4636 case 'n':
4637 arg_no_sync = true;
4638 break;
4639
514f4ef5
LP		 4640 case ARG_NO_WALL:
4641 arg_no_wall = true;
4642 break;
4643
e4b61340
LP		 4644 case 'i':
4645 case 'h':
4646 /* Compatibility nops */
4647 break;
4648
4649 case '?':
4650 return -EINVAL;
4651
4652 default:
4653 log_error("Unknown option code %c", c);
4654 return -EINVAL;
4655 }
4656 }
4657
4658 if (optind < argc) {
4659 log_error("Too many arguments.");
4660 return -EINVAL;
4661 }
4662
4663 return 1;
4664}
4665
f6144808
LP		 4666static int parse_time_spec(const char *t, usec_t *_u) {
4667 assert(t);
4668 assert(_u);
4669
4670 if (streq(t, "now"))
4671 *_u = 0;
4672 else if (t[0] == '+') {
4673 uint64_t u;
4674
4675 if (safe_atou64(t + 1, &u) < 0)
4676 return -EINVAL;
4677
4678 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4679 } else {
4680 char *e = NULL;
4681 long hour, minute;
4682 struct tm tm;
4683 time_t s;
4684 usec_t n;
4685
4686 errno = 0;
4687 hour = strtol(t, &e, 10);
4688 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4689 return -EINVAL;
4690
4691 minute = strtol(e+1, &e, 10);
4692 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4693 return -EINVAL;
4694
4695 n = now(CLOCK_REALTIME);
08e4b1c5
LP		 4696 s = (time_t) (n / USEC_PER_SEC);
4697
4698 zero(tm);
f6144808
LP		 4699 assert_se(localtime_r(&s, &tm));
4700
4701 tm.tm_hour = (int) hour;
4702 tm.tm_min = (int) minute;
08e4b1c5 4703 tm.tm_sec = 0;
f6144808
LP		 4704
4705 assert_se(s = mktime(&tm));
4706
4707 *_u = (usec_t) s * USEC_PER_SEC;
4708
4709 while (*_u <= n)
4710 *_u += USEC_PER_DAY;
4711 }
4712
4713 return 0;
4714}
4715
5622dde3
KS		 4716static bool kexec_loaded(void) {
4717 bool loaded = false;
4718 char *s;
4719
4720 if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) {
4721 if (s[0] == '1')
4722 loaded = true;
4723 free(s);
4724 }
4725 return loaded;
4726}
4727
e4b61340
LP		 4728static int shutdown_parse_argv(int argc, char *argv[]) {
4729
4730 enum {
4731 ARG_HELP = 0x100,
514f4ef5 4732 ARG_NO_WALL
e4b61340
LP		 4733 };
4734
4735 static const struct option options[] = {
4736 { "help", no_argument, NULL, ARG_HELP },
4737 { "halt", no_argument, NULL, 'H' },
4738 { "poweroff", no_argument, NULL, 'P' },
4739 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4740 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4741 { NULL, 0, NULL, 0 }
4742 };
4743
f6144808 4744 int c, r;
e4b61340
LP		 4745
4746 assert(argc >= 0);
4747 assert(argv);
4748
f6144808 4749 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
e4b61340
LP		 4750 switch (c) {
4751
4752 case ARG_HELP:
4753 shutdown_help();
4754 return 0;
4755
4756 case 'H':
4757 arg_action = ACTION_HALT;
4758 break;
4759
4760 case 'P':
4761 arg_action = ACTION_POWEROFF;
4762 break;
4763
4764 case 'r':
5622dde3
KS		 4765 if (kexec_loaded())
4766 arg_action = ACTION_KEXEC;
4767 else
4768 arg_action = ACTION_REBOOT;
e4b61340
LP		 4769 break;
4770
4771 case 'h':
4772 if (arg_action != ACTION_HALT)
4773 arg_action = ACTION_POWEROFF;
4774 break;
4775
4776 case 'k':
4777 arg_dry = true;
4778 break;
4779
514f4ef5
LP		 4780 case ARG_NO_WALL:
4781 arg_no_wall = true;
4782 break;
4783
e4b61340
LP		 4784 case 't':
4785 case 'a':
4786 /* Compatibility nops */
4787 break;
4788
f6144808
LP		 4789 case 'c':
4790 arg_action = ACTION_CANCEL_SHUTDOWN;
4791 break;
4792
e4b61340
LP		 4793 case '?':
4794 return -EINVAL;
4795
4796 default:
4797 log_error("Unknown option code %c", c);
4798 return -EINVAL;
4799 }
4800 }
4801
6b5ad000 4802 if (argc > optind) {
f6144808
LP		 4803 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4804 log_error("Failed to parse time specification: %s", argv[optind]);
4805 return r;
4806 }
6b5ad000 4807 } else
08e4b1c5 4808 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
442b9094 4809
f6144808 4810 /* We skip the time argument */
e4b61340
LP		 4811 if (argc > optind + 1)
4812 arg_wall = argv + optind + 1;
4813
4814 optind = argc;
4815
4816 return 1;
e4b61340
LP		 4817}
4818
4819static int telinit_parse_argv(int argc, char *argv[]) {
4820
4821 enum {
4822 ARG_HELP = 0x100,
514f4ef5 4823 ARG_NO_WALL
e4b61340
LP		 4824 };
4825
4826 static const struct option options[] = {
4827 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4828 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4829 { NULL, 0, NULL, 0 }
4830 };
4831
4832 static const struct {
4833 char from;
4834 enum action to;
4835 } table[] = {
4836 { '0', ACTION_POWEROFF },
4837 { '6', ACTION_REBOOT },
ef2f1067 4838 { '1', ACTION_RESCUE },
e4b61340
LP		 4839 { '2', ACTION_RUNLEVEL2 },
4840 { '3', ACTION_RUNLEVEL3 },
4841 { '4', ACTION_RUNLEVEL4 },
4842 { '5', ACTION_RUNLEVEL5 },
4843 { 's', ACTION_RESCUE },
4844 { 'S', ACTION_RESCUE },
4845 { 'q', ACTION_RELOAD },
4846 { 'Q', ACTION_RELOAD },
4847 { 'u', ACTION_REEXEC },
4848 { 'U', ACTION_REEXEC }
4849 };
4850
4851 unsigned i;
4852 int c;
4853
4854 assert(argc >= 0);
4855 assert(argv);
4856
4857 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4858 switch (c) {
4859
4860 case ARG_HELP:
4861 telinit_help();
4862 return 0;
4863
514f4ef5
LP		 4864 case ARG_NO_WALL:
4865 arg_no_wall = true;
4866 break;
4867
e4b61340
LP		 4868 case '?':
4869 return -EINVAL;
4870
4871 default:
4872 log_error("Unknown option code %c", c);
4873 return -EINVAL;
4874 }
4875 }
4876
4877 if (optind >= argc) {
2f02ce40 4878 telinit_help();
e4b61340
LP		 4879 return -EINVAL;
4880 }
4881
4882 if (optind + 1 < argc) {
4883 log_error("Too many arguments.");
4884 return -EINVAL;
4885 }
4886
4887 if (strlen(argv[optind]) != 1) {
4888 log_error("Expected single character argument.");
4889 return -EINVAL;
4890 }
4891
4892 for (i = 0; i < ELEMENTSOF(table); i++)
4893 if (table[i].from == argv[optind][0])
4894 break;
4895
4896 if (i >= ELEMENTSOF(table)) {
4897 log_error("Unknown command %s.", argv[optind]);
4898 return -EINVAL;
4899 }
4900
4901 arg_action = table[i].to;
4902
4903 optind ++;
4904
4905 return 1;
4906}
4907
4908static int runlevel_parse_argv(int argc, char *argv[]) {
4909
4910 enum {
4911 ARG_HELP = 0x100,
4912 };
4913
4914 static const struct option options[] = {
4915 { "help", no_argument, NULL, ARG_HELP },
4916 { NULL, 0, NULL, 0 }
4917 };
4918
4919 int c;
4920
4921 assert(argc >= 0);
4922 assert(argv);
4923
4924 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4925 switch (c) {
4926
4927 case ARG_HELP:
4928 runlevel_help();
4929 return 0;
4930
4931 case '?':
4932 return -EINVAL;
4933
4934 default:
4935 log_error("Unknown option code %c", c);
4936 return -EINVAL;
4937 }
4938 }
4939
4940 if (optind < argc) {
4941 log_error("Too many arguments.");
4942 return -EINVAL;
4943 }
4944
4945 return 1;
4946}
4947
4948static int parse_argv(int argc, char *argv[]) {
4949 assert(argc >= 0);
4950 assert(argv);
4951
4952 if (program_invocation_short_name) {
4953
4954 if (strstr(program_invocation_short_name, "halt")) {
4955 arg_action = ACTION_HALT;
4956 return halt_parse_argv(argc, argv);
4957 } else if (strstr(program_invocation_short_name, "poweroff")) {
4958 arg_action = ACTION_POWEROFF;
4959 return halt_parse_argv(argc, argv);
4960 } else if (strstr(program_invocation_short_name, "reboot")) {
5622dde3
KS		 4961 if (kexec_loaded())
4962 arg_action = ACTION_KEXEC;
4963 else
4964 arg_action = ACTION_REBOOT;
e4b61340
LP		 4965 return halt_parse_argv(argc, argv);
4966 } else if (strstr(program_invocation_short_name, "shutdown")) {
4967 arg_action = ACTION_POWEROFF;
4968 return shutdown_parse_argv(argc, argv);
4969 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 4970
4971 if (sd_booted() > 0) {
4972 arg_action = ACTION_INVALID;
4973 return telinit_parse_argv(argc, argv);
4974 } else {
4975 /* Hmm, so some other init system is
4976 * running, we need to forward this
4977 * request to it. For now we simply
4978 * guess that it is Upstart. */
4979
4980 execv("/lib/upstart/telinit", argv);
4981
4982 log_error("Couldn't find an alternative telinit implementation to spawn.");
4983 return -EIO;
4984 }
4985
e4b61340
LP		 4986 } else if (strstr(program_invocation_short_name, "runlevel")) {
4987 arg_action = ACTION_RUNLEVEL;
4988 return runlevel_parse_argv(argc, argv);
4989 }
4990 }
4991
4992 arg_action = ACTION_SYSTEMCTL;
4993 return systemctl_parse_argv(argc, argv);
4994}
4995
d55ae9e6 4996static int action_to_runlevel(void) {
eb22ac37
LP		 4997
4998 static const char table[_ACTION_MAX] = {
4999 [ACTION_HALT] = '0',
5000 [ACTION_POWEROFF] = '0',
5001 [ACTION_REBOOT] = '6',
5002 [ACTION_RUNLEVEL2] = '2',
5003 [ACTION_RUNLEVEL3] = '3',
5004 [ACTION_RUNLEVEL4] = '4',
5005 [ACTION_RUNLEVEL5] = '5',
5006 [ACTION_RESCUE] = '1'
5007 };
5008
d55ae9e6
LP		 5009 assert(arg_action < _ACTION_MAX);
5010
5011 return table[arg_action];
5012}
5013
f1c5860b 5014static int talk_upstart(void) {
d55ae9e6
LP		 5015 DBusMessage *m = NULL, *reply = NULL;
5016 DBusError error;
5017 int previous, rl, r;
5018 char
5019 env1_buf[] = "RUNLEVEL=X",
5020 env2_buf[] = "PREVLEVEL=X";
5021 char *env1 = env1_buf, *env2 = env2_buf;
5022 const char *emit = "runlevel";
5023 dbus_bool_t b_false = FALSE;
5024 DBusMessageIter iter, sub;
f1c5860b 5025 DBusConnection *bus;
d55ae9e6
LP		 5026
5027 dbus_error_init(&error);
5028
5029 if (!(rl = action_to_runlevel()))
5030 return 0;
5031
5032 if (utmp_get_runlevel(&previous, NULL) < 0)
5033 previous = 'N';
5034
b574246b 5035 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 5036 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5037 r = 0;
5038 goto finish;
5039 }
5040
4cf5d675 5041 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
f1c5860b
LP		 5042 r = -EIO;
5043 goto finish;
5044 }
5045
5046 if ((r = bus_check_peercred(bus)) < 0) {
5047 log_error("Failed to verify owner of bus.");
5048 goto finish;
5049 }
5050
d55ae9e6
LP		 5051 if (!(m = dbus_message_new_method_call(
5052 "com.ubuntu.Upstart",
5053 "/com/ubuntu/Upstart",
5054 "com.ubuntu.Upstart0_6",
5055 "EmitEvent"))) {
5056
5057 log_error("Could not allocate message.");
f1c5860b
LP		 5058 r = -ENOMEM;
5059 goto finish;
d55ae9e6
LP		 5060 }
5061
5062 dbus_message_iter_init_append(m, &iter);
5063
5064 env1_buf[sizeof(env1_buf)-2] = rl;
5065 env2_buf[sizeof(env2_buf)-2] = previous;
5066
5067 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5068 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5069 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5070 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5071 !dbus_message_iter_close_container(&iter, &sub) ||
5072 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5073 log_error("Could not append arguments to message.");
5074 r = -ENOMEM;
5075 goto finish;
5076 }
5077
5078 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5079
5080 if (error_is_no_service(&error)) {
aabd9b11 5081 r = -EADDRNOTAVAIL;
d55ae9e6
LP		 5082 goto finish;
5083 }
5084
4cf5d675 5085 log_error("Failed to issue method call: %s", bus_error_message(&error));
d55ae9e6
LP		 5086 r = -EIO;
5087 goto finish;
5088 }
5089
aabd9b11 5090 r = 0;
d55ae9e6
LP		 5091
5092finish:
5093 if (m)
5094 dbus_message_unref(m);
5095
5096 if (reply)
5097 dbus_message_unref(reply);
5098
b574246b 5099 if (bus) {
5d452f9c 5100 dbus_connection_flush(bus);
b574246b 5101 dbus_connection_close(bus);
f1c5860b 5102 dbus_connection_unref(bus);
b574246b 5103 }
f1c5860b 5104
d55ae9e6
LP		 5105 dbus_error_free(&error);
5106
5107 return r;
5108}
5109
5110static int talk_initctl(void) {
eb22ac37
LP		 5111 struct init_request request;
5112 int r, fd;
d55ae9e6 5113 char rl;
eb22ac37 5114
d55ae9e6 5115 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 5116 return 0;
5117
5118 zero(request);
5119 request.magic = INIT_MAGIC;
5120 request.sleeptime = 0;
5121 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 5122 request.runlevel = rl;
5123
5124 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5125
5126 if (errno == ENOENT)
5127 return 0;
eb22ac37 5128
d55ae9e6 5129 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 5130 return -errno;
d55ae9e6 5131 }
eb22ac37 5132
d55ae9e6 5133 errno = 0;
eb22ac37
LP		 5134 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5135 close_nointr_nofail(fd);
5136
d55ae9e6
LP		 5137 if (r < 0) {
5138 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 5139 return errno ? -errno : -EIO;
d55ae9e6 5140 }
eb22ac37
LP		 5141
5142 return 1;
e4b61340
LP		 5143}
5144
ee5762e3 5145static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 5146
7e4249b9
LP		 5147 static const struct {
5148 const char* verb;
5149 const enum {
5150 MORE,
5151 LESS,
5152 EQUAL
5153 } argc_cmp;
5154 const int argc;
5155 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
5156 } verbs[] = {
ee5762e3
LP		 5157 { "list-units", LESS, 1, list_units },
5158 { "list-jobs", EQUAL, 1, list_jobs },
5159 { "clear-jobs", EQUAL, 1, daemon_reload },
5160 { "load", MORE, 2, load_unit },
5161 { "cancel", MORE, 2, cancel_job },
5162 { "start", MORE, 2, start_unit },
5163 { "stop", MORE, 2, start_unit },
5164 { "reload", MORE, 2, start_unit },
5165 { "restart", MORE, 2, start_unit },
5166 { "try-restart", MORE, 2, start_unit },
5167 { "reload-or-restart", MORE, 2, start_unit },
5168 { "reload-or-try-restart", MORE, 2, start_unit },
5169 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
64e5f1b7 5170 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
ee5762e3
LP		 5171 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5172 { "isolate", EQUAL, 2, start_unit },
8a0867d6 5173 { "kill", MORE, 2, kill_unit },
ee5762e3
LP		 5174 { "is-active", MORE, 2, check_unit },
5175 { "check", MORE, 2, check_unit },
5176 { "show", MORE, 1, show },
5177 { "status", MORE, 2, show },
5178 { "monitor", EQUAL, 1, monitor },
5179 { "dump", EQUAL, 1, dump },
5180 { "dot", EQUAL, 1, dot },
5181 { "snapshot", LESS, 2, snapshot },
5182 { "delete", MORE, 2, delete_snapshot },
5183 { "daemon-reload", EQUAL, 1, daemon_reload },
5184 { "daemon-reexec", EQUAL, 1, daemon_reload },
ee5762e3
LP		 5185 { "show-environment", EQUAL, 1, show_enviroment },
5186 { "set-environment", MORE, 2, set_environment },
5187 { "unset-environment", MORE, 2, set_environment },
5188 { "halt", EQUAL, 1, start_special },
5189 { "poweroff", EQUAL, 1, start_special },
5190 { "reboot", EQUAL, 1, start_special },
20b09ca7 5191 { "kexec", EQUAL, 1, start_special },
ee5762e3
LP		 5192 { "default", EQUAL, 1, start_special },
5193 { "rescue", EQUAL, 1, start_special },
5194 { "emergency", EQUAL, 1, start_special },
20b09ca7 5195 { "exit", EQUAL, 1, start_special },
fdf20a31 5196 { "reset-failed", MORE, 1, reset_failed },
ee5762e3
LP		 5197 { "enable", MORE, 2, enable_unit },
5198 { "disable", MORE, 2, enable_unit },
5199 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 5200 };
5201
e4b61340 5202 int left;
7e4249b9 5203 unsigned i;
7e4249b9 5204
e4b61340
LP		 5205 assert(argc >= 0);
5206 assert(argv);
ee5762e3 5207 assert(error);
7e4249b9
LP		 5208
5209 left = argc - optind;
5210
5211 if (left <= 0)
5212 /* Special rule: no arguments means "list-units" */
5213 i = 0;
5214 else {
0183528f
LP		 5215 if (streq(argv[optind], "help")) {
5216 systemctl_help();
5217 return 0;
5218 }
5219
7e4249b9
LP		 5220 for (i = 0; i < ELEMENTSOF(verbs); i++)
5221 if (streq(argv[optind], verbs[i].verb))
5222 break;
5223
5224 if (i >= ELEMENTSOF(verbs)) {
5225 log_error("Unknown operation %s", argv[optind]);
e4b61340 5226 return -EINVAL;
7e4249b9
LP		 5227 }
5228 }
5229
5230 switch (verbs[i].argc_cmp) {
5231
5232 case EQUAL:
5233 if (left != verbs[i].argc) {
5234 log_error("Invalid number of arguments.");
e4b61340 5235 return -EINVAL;
7e4249b9
LP		 5236 }
5237
5238 break;
5239
5240 case MORE:
5241 if (left < verbs[i].argc) {
5242 log_error("Too few arguments.");
e4b61340 5243 return -EINVAL;
7e4249b9
LP		 5244 }
5245
5246 break;
5247
5248 case LESS:
5249 if (left > verbs[i].argc) {
5250 log_error("Too many arguments.");
e4b61340 5251 return -EINVAL;
7e4249b9
LP		 5252 }
5253
5254 break;
5255
5256 default:
5257 assert_not_reached("Unknown comparison operator.");
5258 }
5259
ee5762e3
LP		 5260 /* Require a bus connection for all operations but
5261 * enable/disable */
5262 if (!streq(verbs[i].verb, "enable") &&
5263 !streq(verbs[i].verb, "disable") &&
5264 !bus) {
5265 log_error("Failed to get D-Bus connection: %s", error->message);
5266 return -EIO;
5267 }
5268
e4b61340
LP		 5269 return verbs[i].dispatch(bus, argv + optind, left);
5270}
5271
9be9828c 5272static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
f6144808
LP		 5273 int fd = -1;
5274 struct msghdr msghdr;
5275 struct iovec iovec;
5276 union sockaddr_union sockaddr;
f6144808
LP		 5277 struct shutdownd_command c;
5278
5279 zero(c);
5280 c.elapse = t;
5281 c.mode = mode;
9be9828c
LP		 5282 c.warn_wall = warn;
5283
5284 if (message)
5285 strncpy(c.wall_message, message, sizeof(c.wall_message));
f6144808
LP		 5286
5287 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5288 return -errno;
5289
5290 zero(sockaddr);
5291 sockaddr.sa.sa_family = AF_UNIX;
5292 sockaddr.un.sun_path[0] = 0;
5293 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
5294
5295 zero(iovec);
5296 iovec.iov_base = (char*) &c;
5297 iovec.iov_len = sizeof(c);
5298
f6144808
LP		 5299 zero(msghdr);
5300 msghdr.msg_name = &sockaddr;
0e098b15 5301 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
f6144808
LP		 5302
5303 msghdr.msg_iov = &iovec;
5304 msghdr.msg_iovlen = 1;
f6144808
LP		 5305
5306 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5307 close_nointr_nofail(fd);
5308 return -errno;
5309 }
5310
5311 close_nointr_nofail(fd);
5312 return 0;
5313}
5314
e4b61340 5315static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5316
5317 if (bus) {
5318 /* First, try systemd via D-Bus. */
e364ad06 5319 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 5320 return 0;
5321 }
5322
5323 /* Nothing else worked, so let's try signals */
5324 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5325
5326 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5327 log_error("kill() failed: %m");
5328 return -errno;
5329 }
5330
5331 return 0;
5332}
5333
5334static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5335
5336 if (bus) {
5337 /* First, try systemd via D-Bus. */
706900b7 5338 if (start_unit(bus, NULL, 0) >= 0)
983d9c90 5339 goto done;
e4b61340
LP		 5340 }
5341
ec7f7f20
LP		 5342 /* Hmm, talking to systemd via D-Bus didn't work. Then
5343 * let's try to talk to Upstart via D-Bus. */
e364ad06 5344 if (talk_upstart() > 0)
ec7f7f20
LP		 5345 goto done;
5346
e4b61340
LP		 5347 /* Nothing else worked, so let's try
5348 * /dev/initctl */
fbc43921 5349 if (talk_initctl() > 0)
983d9c90 5350 goto done;
d55ae9e6
LP		 5351
5352 log_error("Failed to talk to init daemon.");
5353 return -EIO;
983d9c90
LP		 5354
5355done:
5356 warn_wall(arg_action);
5357 return 0;
e4b61340
LP		 5358}
5359
5360static int halt_main(DBusConnection *bus) {
5361 int r;
5362
bc8c2f5c 5363 if (geteuid() != 0) {
cc8a7a61 5364 log_error("Must be root.");
bc8c2f5c
LP		 5365 return -EPERM;
5366 }
5367
f6144808 5368 if (arg_when > 0) {
9be9828c 5369 char *m;
08e4b1c5 5370 char date[FORMAT_TIMESTAMP_MAX];
9be9828c
LP		 5371
5372 m = strv_join(arg_wall, " ");
5373 r = send_shutdownd(arg_when,
5374 arg_action == ACTION_HALT ? 'H' :
5375 arg_action == ACTION_POWEROFF ? 'P' :
5376 'r',
5377 !arg_no_wall,
5378 m);
5379 free(m);
5380
5381 if (r < 0)
f6144808 5382 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
08e4b1c5
LP		 5383 else {
5384 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5385 format_timestamp(date, sizeof(date), arg_when));
f6144808 5386 return 0;
08e4b1c5 5387 }
f6144808
LP		 5388 }
5389
d47b555b 5390 if (!arg_dry && !arg_immediate)
e4b61340
LP		 5391 return start_with_fallback(bus);
5392
d90e1a30
LP		 5393 if (!arg_no_wtmp) {
5394 if (sd_booted() > 0)
5395 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5396 else if ((r = utmp_put_shutdown(0)) < 0)
e4b61340 5397 log_warning("Failed to write utmp record: %s", strerror(-r));
d90e1a30 5398 }
e4b61340
LP		 5399
5400 if (!arg_no_sync)
5401 sync();
5402
5403 if (arg_dry)
5404 return 0;
5405
5406 /* Make sure C-A-D is handled by the kernel from this
5407 * point on... */
5408 reboot(RB_ENABLE_CAD);
5409
5410 switch (arg_action) {
5411
5412 case ACTION_HALT:
3059b1c1 5413 log_info("Halting.");
e4b61340
LP		 5414 reboot(RB_HALT_SYSTEM);
5415 break;
5416
5417 case ACTION_POWEROFF:
3059b1c1 5418 log_info("Powering off.");
e4b61340
LP		 5419 reboot(RB_POWER_OFF);
5420 break;
5421
5422 case ACTION_REBOOT:
3059b1c1 5423 log_info("Rebooting.");
e4b61340
LP		 5424 reboot(RB_AUTOBOOT);
5425 break;
5426
5427 default:
5428 assert_not_reached("Unknown halt action.");
5429 }
5430
5431 /* We should never reach this. */
5432 return -ENOSYS;
5433}
5434
5435static int runlevel_main(void) {
5436 int r, runlevel, previous;
5437
5438 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 5439 printf("unknown\n");
e4b61340
LP		 5440 return r;
5441 }
5442
5443 printf("%c %c\n",
5444 previous <= 0 ? 'N' : previous,
5445 runlevel <= 0 ? 'N' : runlevel);
5446
5447 return 0;
5448}
5449
0736af98 5450static void pager_open(void) {
611efaac
LP		 5451 int fd[2];
5452 const char *pager;
c0f9c7da 5453 pid_t parent_pid;
611efaac 5454
1888c907
LP		 5455 if (pager_pid > 0)
5456 return;
5457
611efaac
LP		 5458 if (!on_tty() || arg_no_pager)
5459 return;
5460
5461 if ((pager = getenv("PAGER")))
5462 if (!*pager || streq(pager, "cat"))
5463 return;
5464
4bc5f808
LP		 5465 /* Determine and cache number of columns before we spawn the
5466 * pager so that we get the value from the actual tty */
5467 columns();
5468
611efaac
LP		 5469 if (pipe(fd) < 0) {
5470 log_error("Failed to create pager pipe: %m");
5471 return;
5472 }
5473
c0f9c7da
LP		 5474 parent_pid = getpid();
5475
1888c907
LP		 5476 pager_pid = fork();
5477 if (pager_pid < 0) {
611efaac
LP		 5478 log_error("Failed to fork pager: %m");
5479 close_pipe(fd);
5480 return;
5481 }
5482
1888c907
LP		 5483 /* In the child start the pager */
5484 if (pager_pid == 0) {
611efaac
LP		 5485
5486 dup2(fd[0], STDIN_FILENO);
5487 close_pipe(fd);
5488
4c00bf25 5489 setenv("LESS", "FRSX", 0);
611efaac 5490
c0f9c7da
LP		 5491 /* Make sure the pager goes away when the parent dies */
5492 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
5493 _exit(EXIT_FAILURE);
5494
5495 /* Check whether our parent died before we were able
5496 * to set the death signal */
5497 if (getppid() != parent_pid)
5498 _exit(EXIT_SUCCESS);
1888c907 5499
611efaac
LP		 5500 if (pager) {
5501 execlp(pager, pager, NULL);
5502 execl("/bin/sh", "sh", "-c", pager, NULL);
5503 } else {
75d12d57
LP		 5504 /* Debian's alternatives command for pagers is
5505 * called 'pager'. Note that we do not call
5506 * sensible-pagers here, since that is just a
5507 * shell script that implements a logic that
5508 * is similar to this one anyway, but is
5509 * Debian-specific. */
5510 execlp("pager", "pager", NULL);
5511
611efaac
LP		 5512 execlp("less", "less", NULL);
5513 execlp("more", "more", NULL);
5514 }
5515
5516 log_error("Unable to execute pager: %m");
5517 _exit(EXIT_FAILURE);
5518 }
5519
1888c907 5520 /* Return in the parent */
611efaac
LP		 5521 if (dup2(fd[1], STDOUT_FILENO) < 0)
5522 log_error("Failed to duplicate pager pipe: %m");
5523
5524 close_pipe(fd);
0736af98
MV		 5525}
5526
1888c907
LP		 5527static void pager_close(void) {
5528 siginfo_t dummy;
5529
5530 if (pager_pid <= 0)
5531 return;
5532
5533 /* Inform pager that we are done */
5534 fclose(stdout);
430c18ed 5535 kill(pager_pid, SIGCONT);
1888c907
LP		 5536 wait_for_terminate(pager_pid, &dummy);
5537 pager_pid = 0;
5538}
5539
c0f9c7da
LP		 5540static void agent_close(void) {
5541 siginfo_t dummy;
5542
5543 if (agent_pid <= 0)
5544 return;
5545
5546 /* Inform agent that we are done */
5547 kill(agent_pid, SIGTERM);
430c18ed 5548 kill(agent_pid, SIGCONT);
c0f9c7da
LP		 5549 wait_for_terminate(agent_pid, &dummy);
5550 agent_pid = 0;
5551}
5552
e4b61340 5553int main(int argc, char*argv[]) {
22f4096c 5554 int r, retval = EXIT_FAILURE;
e4b61340
LP		 5555 DBusConnection *bus = NULL;
5556 DBusError error;
5557
5558 dbus_error_init(&error);
5559
5560 log_parse_environment();
2396fb04 5561 log_open();
e4b61340
LP		 5562
5563 if ((r = parse_argv(argc, argv)) < 0)
5564 goto finish;
5565 else if (r == 0) {
22f4096c 5566 retval = EXIT_SUCCESS;
7e4249b9
LP		 5567 goto finish;
5568 }
5569
e4b61340
LP		 5570 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5571 * let's shortcut this */
5572 if (arg_action == ACTION_RUNLEVEL) {
22f4096c
LP		 5573 r = runlevel_main();
5574 retval = r < 0 ? EXIT_FAILURE : r;
e4b61340
LP		 5575 goto finish;
5576 }
5577
af2d49f7 5578 bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
e4b61340
LP		 5579
5580 switch (arg_action) {
5581
22f4096c
LP		 5582 case ACTION_SYSTEMCTL:
5583 r = systemctl_main(bus, argc, argv, &error);
e4b61340 5584 break;
e4b61340
LP		 5585
5586 case ACTION_HALT:
5587 case ACTION_POWEROFF:
5588 case ACTION_REBOOT:
5622dde3 5589 case ACTION_KEXEC:
22f4096c 5590 r = halt_main(bus);
e4b61340
LP		 5591 break;
5592
e4b61340
LP		 5593 case ACTION_RUNLEVEL2:
5594 case ACTION_RUNLEVEL3:
5595 case ACTION_RUNLEVEL4:
5596 case ACTION_RUNLEVEL5:
5597 case ACTION_RESCUE:
514f4ef5 5598 case ACTION_EMERGENCY:
eb22ac37 5599 case ACTION_DEFAULT:
22f4096c 5600 r = start_with_fallback(bus);
e4b61340 5601 break;
7e4249b9 5602
e4b61340
LP		 5603 case ACTION_RELOAD:
5604 case ACTION_REEXEC:
22f4096c 5605 r = reload_with_fallback(bus);
e4b61340
LP		 5606 break;
5607
f6144808 5608 case ACTION_CANCEL_SHUTDOWN:
22f4096c 5609 r = send_shutdownd(0, 0, false, NULL);
f6144808
LP		 5610 break;
5611
eb22ac37
LP		 5612 case ACTION_INVALID:
5613 case ACTION_RUNLEVEL:
e4b61340
LP		 5614 default:
5615 assert_not_reached("Unknown action");
5616 }
7e4249b9 5617
22f4096c
LP		 5618 retval = r < 0 ? EXIT_FAILURE : r;
5619
7e4249b9
LP		 5620finish:
5621
b574246b 5622 if (bus) {
5d452f9c 5623 dbus_connection_flush(bus);
b574246b 5624 dbus_connection_close(bus);
7e4249b9 5625 dbus_connection_unref(bus);
b574246b 5626 }
7e4249b9 5627
e4b61340
LP		 5628 dbus_error_free(&error);
5629
7e4249b9
LP		 5630 dbus_shutdown();
5631
ea4a240d
LP		 5632 strv_free(arg_property);
5633
1888c907 5634 pager_close();
c0f9c7da 5635 agent_close();
1888c907 5636
7e4249b9
LP		 5637 return retval;
5638}
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