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label: don't print warning when we try ro relabel an non-existing file
[thirdparty/systemd.git] / src / systemctl.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
7e4249b9
LP		 2
3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
e4b61340 22#include <sys/reboot.h>
7e4249b9
LP		 23#include <stdio.h>
24#include <getopt.h>
25#include <stdbool.h>
26#include <string.h>
27#include <errno.h>
28#include <sys/ioctl.h>
29#include <termios.h>
30#include <unistd.h>
eb22ac37 31#include <fcntl.h>
f1c5860b 32#include <sys/socket.h>
ee5762e3 33#include <sys/stat.h>
0e098b15 34#include <stddef.h>
501fc174 35#include <sys/prctl.h>
7e4249b9
LP		 36
37#include <dbus/dbus.h>
38
39#include "log.h"
40#include "util.h"
41#include "macro.h"
42#include "set.h"
e4b61340 43#include "utmp-wtmp.h"
514f4ef5 44#include "special.h"
eb22ac37 45#include "initreq.h"
e4a9373f 46#include "strv.h"
9a1ac7b9 47#include "dbus-common.h"
ab35fb1b 48#include "cgroup-show.h"
c6c18be3 49#include "cgroup-util.h"
582a507f 50#include "list.h"
ee5762e3
LP		 51#include "path-lookup.h"
52#include "conf-parser.h"
53#include "sd-daemon.h"
f6144808 54#include "shutdownd.h"
d06dacd0 55#include "exit-status.h"
22f4096c 56#include "bus-errors.h"
7d568925 57#include "build.h"
71fad675 58#include "unit-name.h"
7e4249b9
LP		 59
60static const char *arg_type = NULL;
ea4a240d 61static char **arg_property = NULL;
7e4249b9 62static bool arg_all = false;
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;
a8f11321
LP		 111static enum transport {
112 TRANSPORT_NORMAL,
113 TRANSPORT_SSH,
114 TRANSPORT_POLKIT
115} arg_transport = TRANSPORT_NORMAL;
116static const char *arg_host = NULL;
e4b61340 117
f4579ce7
LP		 118static bool private_bus = false;
119
1888c907 120static pid_t pager_pid = 0;
c0f9c7da 121static pid_t agent_pid = 0;
1888c907 122
ee5762e3 123static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
ec14911e 124static void pager_open(void);
ee5762e3 125
2ee68f72 126static bool on_tty(void) {
2cc59dbf
LP		 127 static int t = -1;
128
75d12d57
LP		 129 /* Note that this is invoked relatively early, before we start
130 * the pager. That means the value we return reflects whether
131 * we originally were started on a tty, not if we currently
060ed82e 132 * are. But this is intended, since we want colour and so on
75d12d57
LP		 133 * when run in our own pager. */
134
2cc59dbf
LP		 135 if (_unlikely_(t < 0))
136 t = isatty(STDOUT_FILENO) > 0;
137
2ee68f72
LP		 138 return t;
139}
140
501fc174 141static void spawn_ask_password_agent(void) {
c0f9c7da
LP		 142 pid_t parent;
143
144 if (agent_pid > 0)
145 return;
501fc174
LP		 146
147 /* We check STDIN here, not STDOUT, since this is about input,
148 * not output */
149 if (!isatty(STDIN_FILENO))
150 return;
151
152 if (!arg_ask_password)
153 return;
715554e7
LP		 154
155 if (arg_user)
156 return;
501fc174
LP		 157
158 parent = getpid();
159
160 /* Spawns a temporary TTY agent, making sure it goes away when
161 * we go away */
162
c0f9c7da 163 if ((agent_pid = fork()) < 0)
501fc174
LP		 164 return;
165
c0f9c7da 166 if (agent_pid == 0) {
501fc174 167 /* In the child */
501fc174 168
7f6d6135 169 int fd;
7fc01d33 170 bool stdout_is_tty, stderr_is_tty;
7f6d6135
LP		 171
172 /* Make sure the agent goes away when the parent dies */
501fc174
LP		 173 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
174 _exit(EXIT_FAILURE);
175
176 /* Check whether our parent died before we were able
177 * to set the death signal */
178 if (getppid() != parent)
179 _exit(EXIT_SUCCESS);
180
7f6d6135
LP		 181 /* Don't leak fds to the agent */
182 close_all_fds(NULL, 0);
183
7fc01d33
LP		 184 stdout_is_tty = isatty(STDOUT_FILENO);
185 stderr_is_tty = isatty(STDERR_FILENO);
186
187 if (!stdout_is_tty || !stderr_is_tty) {
060ed82e
LP		 188 /* Detach from stdout/stderr. and reopen
189 * /dev/tty for them. This is important to
190 * ensure that when systemctl is started via
191 * popen() or a similar call that expects to
192 * read EOF we actually do generate EOF and
193 * not delay this indefinitely by because we
194 * keep an unused copy of stdin around. */
195 if ((fd = open("/dev/tty", O_WRONLY)) < 0) {
196 log_error("Failed to open /dev/tty: %m");
197 _exit(EXIT_FAILURE);
198 }
199
7fc01d33 200 if (!stdout_is_tty)
060ed82e 201 dup2(fd, STDOUT_FILENO);
060ed82e 202
7fc01d33 203 if (!stderr_is_tty)
060ed82e 204 dup2(fd, STDERR_FILENO);
060ed82e
LP		 205
206 if (fd > 2)
207 close(fd);
7f6d6135
LP		 208 }
209
c0f9c7da
LP		 210 execl(SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
211
212 log_error("Unable to execute agent: %m");
501fc174
LP		 213 _exit(EXIT_FAILURE);
214 }
215}
216
2ee68f72
LP		 217static const char *ansi_highlight(bool b) {
218
219 if (!on_tty())
2cc59dbf
LP		 220 return "";
221
222 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
223}
224
2ee68f72
LP		 225static const char *ansi_highlight_green(bool b) {
226
227 if (!on_tty())
228 return "";
229
230 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
231}
232
f73e33d9 233static bool error_is_no_service(const DBusError *error) {
514f4ef5
LP		 234 assert(error);
235
e4b61340
LP		 236 if (!dbus_error_is_set(error))
237 return false;
238
239 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
240 return true;
241
242 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
243 return true;
244
245 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
246}
7e4249b9 247
22f4096c
LP		 248static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
249 assert(error);
250
251 if (!dbus_error_is_set(error))
252 return r;
253
254 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
255 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
256 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
257 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
258 return EXIT_NOPERMISSION;
259
260 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
261 return EXIT_NOTINSTALLED;
262
263 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
264 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
265 return EXIT_NOTIMPLEMENTED;
266
267 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
268 return EXIT_NOTCONFIGURED;
269
270 if (r != 0)
271 return r;
272
273 return EXIT_FAILURE;
274}
275
7e4249b9
LP		 276static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
277
514f4ef5
LP		 278 assert(iter);
279 assert(data);
280
7e4249b9
LP		 281 if (dbus_message_iter_get_arg_type(iter) != type)
282 return -EIO;
283
284 dbus_message_iter_get_basic(iter, data);
285
286 if (!dbus_message_iter_next(iter) != !next)
287 return -EIO;
288
289 return 0;
290}
291
514f4ef5 292static void warn_wall(enum action action) {
ef2f1067 293 static const char *table[_ACTION_MAX] = {
514f4ef5
LP		 294 [ACTION_HALT] = "The system is going down for system halt NOW!",
295 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
296 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
20b09ca7 297 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
514f4ef5
LP		 298 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
299 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
ef2f1067
LP		 300 };
301
514f4ef5
LP		 302 if (arg_no_wall)
303 return;
304
e4a9373f
LP		 305 if (arg_wall) {
306 char *p;
307
308 if (!(p = strv_join(arg_wall, " "))) {
309 log_error("Failed to join strings.");
310 return;
311 }
312
313 if (*p) {
7af53310 314 utmp_wall(p, NULL);
e4a9373f
LP		 315 free(p);
316 return;
317 }
318
319 free(p);
320 }
321
514f4ef5 322 if (!table[action])
ef2f1067
LP		 323 return;
324
7af53310 325 utmp_wall(table[action], NULL);
ef2f1067
LP		 326}
327
36c32ba2
LP		 328struct unit_info {
329 const char *id;
330 const char *description;
331 const char *load_state;
332 const char *active_state;
333 const char *sub_state;
334 const char *following;
335 const char *unit_path;
336 uint32_t job_id;
337 const char *job_type;
338 const char *job_path;
339};
340
341static int compare_unit_info(const void *a, const void *b) {
342 const char *d1, *d2;
343 const struct unit_info *u = a, *v = b;
344
345 d1 = strrchr(u->id, '.');
346 d2 = strrchr(v->id, '.');
347
348 if (d1 && d2) {
349 int r;
350
a2a3a5b9 351 if ((r = strcasecmp(d1, d2)) != 0)
36c32ba2
LP		 352 return r;
353 }
354
a2a3a5b9 355 return strcasecmp(u->id, v->id);
36c32ba2
LP		 356}
357
30732560 358static bool output_show_unit(const struct unit_info *u) {
33330222 359 const char *dot;
b036fc00 360
30732560
LP		 361 if (arg_failed)
362 return streq(u->active_state, "failed");
363
33330222
ZJS		 364 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
365 streq(dot+1, arg_type))) &&
366 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
367}
368
eb68c413 369static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
688c6725 370 unsigned active_len, sub_len, job_len, n_shown = 0;
b036fc00 371 const struct unit_info *u;
33330222 372
b036fc00
LP		 373 active_len = sizeof("ACTIVE")-1;
374 sub_len = sizeof("SUB")-1;
375 job_len = sizeof("JOB")-1;
376
377 for (u = unit_infos; u < unit_infos + c; u++) {
30732560 378 if (!output_show_unit(u))
b036fc00
LP		 379 continue;
380
381 active_len = MAX(active_len, strlen(u->active_state));
382 sub_len = MAX(sub_len, strlen(u->sub_state));
383 if (u->job_id != 0)
384 job_len = MAX(job_len, strlen(u->job_type));
33330222
ZJS		 385 }
386
eb68c413 387 if (on_tty()) {
33330222
ZJS		 388 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
389 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
964d124e 390 if (columns() >= 80+12 || arg_full || !arg_no_pager)
33330222 391 printf(" %s\n", "DESCRIPTION");
eb68c413 392 else
33330222 393 printf("\n");
eb68c413
ZJS		 394 }
395
b036fc00
LP		 396 for (u = unit_infos; u < unit_infos + c; u++) {
397 char *e;
398 int a = 0, b = 0;
399 const char *on_loaded, *off_loaded;
400 const char *on_active, *off_active;
401
30732560 402 if (!output_show_unit(u))
b036fc00
LP		 403 continue;
404
688c6725
LP		 405 n_shown++;
406
00dc5d76
LP		 407 if (!streq(u->load_state, "loaded") &&
408 !streq(u->load_state, "banned")) {
b036fc00
LP		 409 on_loaded = ansi_highlight(true);
410 off_loaded = ansi_highlight(false);
411 } else
412 on_loaded = off_loaded = "";
413
414 if (streq(u->active_state, "failed")) {
415 on_active = ansi_highlight(true);
416 off_active = ansi_highlight(false);
417 } else
418 on_active = off_active = "";
eb68c413 419
b036fc00 420 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
eb68c413 421
b036fc00
LP		 422 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
423 e ? e : u->id,
424 on_loaded, u->load_state, off_loaded,
425 on_active, active_len, u->active_state,
426 sub_len, u->sub_state, off_active,
427 &a);
eb68c413 428
b036fc00
LP		 429 free(e);
430
431 a -= strlen(on_loaded) + strlen(off_loaded);
432 a -= strlen(on_active) + strlen(off_active);
433
434 if (u->job_id != 0)
435 printf(" %-*s", job_len, u->job_type);
436 else
437 b = 1 + job_len;
438
439 if (a + b + 1 < columns()) {
440 if (u->job_id == 0)
441 printf(" %-*s", job_len, "");
442
964d124e 443 if (arg_full || !arg_no_pager)
b036fc00
LP		 444 printf(" %s", u->description);
445 else
446 printf(" %.*s", columns() - a - b - 1, u->description);
eb68c413 447 }
b036fc00
LP		 448
449 fputs("\n", stdout);
eb68c413
ZJS		 450 }
451
9b2fcafb 452 if (on_tty()) {
eb68c413
ZJS		 453 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
454 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
455 "SUB = The low-level unit activation state, values depend on unit type.\n"
456 "JOB = Pending job for the unit.\n");
457
458 if (arg_all)
688c6725 459 printf("\n%u units listed.\n", n_shown);
eb68c413 460 else
688c6725 461 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
eb68c413
ZJS		 462 }
463}
464
7e4249b9
LP		 465static int list_units(DBusConnection *bus, char **args, unsigned n) {
466 DBusMessage *m = NULL, *reply = NULL;
467 DBusError error;
468 int r;
469 DBusMessageIter iter, sub, sub2;
eb68c413 470 unsigned c = 0, n_units = 0;
36c32ba2 471 struct unit_info *unit_infos = NULL;
7e4249b9
LP		 472
473 dbus_error_init(&error);
474
514f4ef5
LP		 475 assert(bus);
476
ec14911e
LP		 477 pager_open();
478
7e4249b9
LP		 479 if (!(m = dbus_message_new_method_call(
480 "org.freedesktop.systemd1",
481 "/org/freedesktop/systemd1",
482 "org.freedesktop.systemd1.Manager",
483 "ListUnits"))) {
484 log_error("Could not allocate message.");
485 return -ENOMEM;
486 }
487
488 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 489 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 490 r = -EIO;
491 goto finish;
492 }
493
494 if (!dbus_message_iter_init(reply, &iter) ||
495 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
496 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
497 log_error("Failed to parse reply.");
498 r = -EIO;
499 goto finish;
500 }
501
502 dbus_message_iter_recurse(&iter, &sub);
503
7e4249b9 504 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
36c32ba2 505 struct unit_info *u;
7e4249b9
LP		 506
507 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
508 log_error("Failed to parse reply.");
509 r = -EIO;
510 goto finish;
511 }
512
36c32ba2
LP		 513 if (c >= n_units) {
514 struct unit_info *w;
515
516 n_units = MAX(2*c, 16);
517 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
518
519 if (!w) {
520 log_error("Failed to allocate unit array.");
521 r = -ENOMEM;
522 goto finish;
523 }
524
525 unit_infos = w;
526 }
527
528 u = unit_infos+c;
529
7e4249b9
LP		 530 dbus_message_iter_recurse(&sub, &sub2);
531
36c32ba2
LP		 532 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
533 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
534 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
535 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
536 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
537 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
538 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
539 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
540 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
541 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
7e4249b9
LP		 542 log_error("Failed to parse reply.");
543 r = -EIO;
544 goto finish;
545 }
546
36c32ba2
LP		 547 dbus_message_iter_next(&sub);
548 c++;
549 }
550
bd40a2d8
LP		 551 if (c > 0) {
552 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
553 output_units_list(unit_infos, c);
554 }
4445a875
LP		 555
556 r = 0;
557
558finish:
559 if (m)
560 dbus_message_unref(m);
561
562 if (reply)
563 dbus_message_unref(reply);
564
36c32ba2
LP		 565 free(unit_infos);
566
4445a875
LP		 567 dbus_error_free(&error);
568
569 return r;
570}
571
572static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
573 static const char * const colors[] = {
574 "Requires", "[color=\"black\"]",
575 "RequiresOverridable", "[color=\"black\"]",
576 "Requisite", "[color=\"darkblue\"]",
577 "RequisiteOverridable", "[color=\"darkblue\"]",
578 "Wants", "[color=\"darkgrey\"]",
579 "Conflicts", "[color=\"red\"]",
69dd2852 580 "ConflictedBy", "[color=\"red\"]",
4445a875
LP		 581 "After", "[color=\"green\"]"
582 };
583
584 const char *c = NULL;
585 unsigned i;
586
587 assert(name);
588 assert(prop);
589 assert(iter);
590
591 for (i = 0; i < ELEMENTSOF(colors); i += 2)
592 if (streq(colors[i], prop)) {
593 c = colors[i+1];
594 break;
595 }
596
597 if (!c)
598 return 0;
599
600 if (arg_dot != DOT_ALL)
601 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
602 return 0;
603
604 switch (dbus_message_iter_get_arg_type(iter)) {
605
606 case DBUS_TYPE_ARRAY:
607
608 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
609 DBusMessageIter sub;
610
611 dbus_message_iter_recurse(iter, &sub);
612
613 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
614 const char *s;
615
616 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
617 dbus_message_iter_get_basic(&sub, &s);
618 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
619
620 dbus_message_iter_next(&sub);
621 }
622
623 return 0;
624 }
625 }
626
627 return 0;
628}
629
630static int dot_one(DBusConnection *bus, const char *name, const char *path) {
631 DBusMessage *m = NULL, *reply = NULL;
632 const char *interface = "org.freedesktop.systemd1.Unit";
633 int r;
634 DBusError error;
635 DBusMessageIter iter, sub, sub2, sub3;
636
637 assert(bus);
638 assert(path);
639
640 dbus_error_init(&error);
641
642 if (!(m = dbus_message_new_method_call(
643 "org.freedesktop.systemd1",
644 path,
645 "org.freedesktop.DBus.Properties",
646 "GetAll"))) {
647 log_error("Could not allocate message.");
648 r = -ENOMEM;
649 goto finish;
650 }
651
652 if (!dbus_message_append_args(m,
653 DBUS_TYPE_STRING, &interface,
654 DBUS_TYPE_INVALID)) {
655 log_error("Could not append arguments to message.");
656 r = -ENOMEM;
657 goto finish;
658 }
659
660 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 661 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 662 r = -EIO;
663 goto finish;
664 }
665
666 if (!dbus_message_iter_init(reply, &iter) ||
667 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
668 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
669 log_error("Failed to parse reply.");
670 r = -EIO;
671 goto finish;
672 }
673
674 dbus_message_iter_recurse(&iter, &sub);
675
676 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
677 const char *prop;
678
679 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
680 log_error("Failed to parse reply.");
681 r = -EIO;
682 goto finish;
683 }
684
685 dbus_message_iter_recurse(&sub, &sub2);
686
687 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
688 log_error("Failed to parse reply.");
689 r = -EIO;
690 goto finish;
691 }
692
693 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
694 log_error("Failed to parse reply.");
695 r = -EIO;
696 goto finish;
697 }
698
699 dbus_message_iter_recurse(&sub2, &sub3);
700
701 if (dot_one_property(name, prop, &sub3)) {
702 log_error("Failed to parse reply.");
703 r = -EIO;
704 goto finish;
705 }
706
707 dbus_message_iter_next(&sub);
708 }
709
e364ad06
LP		 710 r = 0;
711
4445a875
LP		 712finish:
713 if (m)
714 dbus_message_unref(m);
715
716 if (reply)
717 dbus_message_unref(reply);
718
719 dbus_error_free(&error);
720
721 return r;
722}
723
724static int dot(DBusConnection *bus, char **args, unsigned n) {
725 DBusMessage *m = NULL, *reply = NULL;
726 DBusError error;
727 int r;
728 DBusMessageIter iter, sub, sub2;
729
730 dbus_error_init(&error);
731
732 assert(bus);
733
734 if (!(m = dbus_message_new_method_call(
735 "org.freedesktop.systemd1",
736 "/org/freedesktop/systemd1",
737 "org.freedesktop.systemd1.Manager",
738 "ListUnits"))) {
739 log_error("Could not allocate message.");
740 return -ENOMEM;
741 }
742
743 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 744 log_error("Failed to issue method call: %s", bus_error_message(&error));
4445a875
LP		 745 r = -EIO;
746 goto finish;
747 }
748
749 if (!dbus_message_iter_init(reply, &iter) ||
750 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
751 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
752 log_error("Failed to parse reply.");
753 r = -EIO;
754 goto finish;
755 }
756
757 printf("digraph systemd {\n");
758
759 dbus_message_iter_recurse(&iter, &sub);
760 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4a4d6b4b 761 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
4445a875
LP		 762
763 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
764 log_error("Failed to parse reply.");
765 r = -EIO;
766 goto finish;
767 }
768
769 dbus_message_iter_recurse(&sub, &sub2);
770
771 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
772 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
773 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
774 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
775 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
4a4d6b4b 776 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
4445a875
LP		 777 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
778 log_error("Failed to parse reply.");
779 r = -EIO;
780 goto finish;
781 }
782
783 if ((r = dot_one(bus, id, unit_path)) < 0)
784 goto finish;
785
786 /* printf("\t\"%s\";\n", id); */
787 dbus_message_iter_next(&sub);
788 }
789
790 printf("}\n");
791
792 log_info(" Color legend: black = Requires\n"
793 " dark blue = Requisite\n"
794 " dark grey = Wants\n"
795 " red = Conflicts\n"
796 " green = After\n");
797
798 if (isatty(fileno(stdout)))
799 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
800 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
7e4249b9
LP		 801
802 r = 0;
803
804finish:
805 if (m)
806 dbus_message_unref(m);
807
808 if (reply)
809 dbus_message_unref(reply);
810
811 dbus_error_free(&error);
812
813 return r;
814}
815
816static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
817 DBusMessage *m = NULL, *reply = NULL;
818 DBusError error;
819 int r;
820 DBusMessageIter iter, sub, sub2;
821 unsigned k = 0;
822
823 dbus_error_init(&error);
824
514f4ef5
LP		 825 assert(bus);
826
ec14911e
LP		 827 pager_open();
828
7e4249b9
LP		 829 if (!(m = dbus_message_new_method_call(
830 "org.freedesktop.systemd1",
831 "/org/freedesktop/systemd1",
832 "org.freedesktop.systemd1.Manager",
833 "ListJobs"))) {
834 log_error("Could not allocate message.");
835 return -ENOMEM;
836 }
837
838 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 839 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 840 r = -EIO;
841 goto finish;
842 }
843
844 if (!dbus_message_iter_init(reply, &iter) ||
845 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
846 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
847 log_error("Failed to parse reply.");
848 r = -EIO;
849 goto finish;
850 }
851
852 dbus_message_iter_recurse(&iter, &sub);
853
f73e33d9
LP		 854 if (isatty(STDOUT_FILENO))
855 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
7e4249b9
LP		 856
857 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
858 const char *name, *type, *state, *job_path, *unit_path;
859 uint32_t id;
8fe914ec 860 char *e;
7e4249b9
LP		 861
862 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
863 log_error("Failed to parse reply.");
864 r = -EIO;
865 goto finish;
866 }
867
868 dbus_message_iter_recurse(&sub, &sub2);
869
870 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
871 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
872 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
873 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
874 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
875 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
876 log_error("Failed to parse reply.");
877 r = -EIO;
878 goto finish;
879 }
880
f73e33d9
LP		 881 e = arg_full ? NULL : ellipsize(name, 25, 33);
882 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
8fe914ec
LP		 883 free(e);
884
7e4249b9
LP		 885 k++;
886
887 dbus_message_iter_next(&sub);
888 }
889
f73e33d9
LP		 890 if (isatty(STDOUT_FILENO))
891 printf("\n%u jobs listed.\n", k);
892
7e4249b9
LP		 893 r = 0;
894
895finish:
896 if (m)
897 dbus_message_unref(m);
898
899 if (reply)
900 dbus_message_unref(reply);
901
902 dbus_error_free(&error);
903
904 return r;
905}
906
907static int load_unit(DBusConnection *bus, char **args, unsigned n) {
908 DBusMessage *m = NULL, *reply = NULL;
909 DBusError error;
910 int r;
911 unsigned i;
912
913 dbus_error_init(&error);
914
514f4ef5
LP		 915 assert(bus);
916 assert(args);
917
7e4249b9
LP		 918 for (i = 1; i < n; i++) {
919
920 if (!(m = dbus_message_new_method_call(
921 "org.freedesktop.systemd1",
922 "/org/freedesktop/systemd1",
923 "org.freedesktop.systemd1.Manager",
924 "LoadUnit"))) {
925 log_error("Could not allocate message.");
926 r = -ENOMEM;
927 goto finish;
928 }
929
930 if (!dbus_message_append_args(m,
931 DBUS_TYPE_STRING, &args[i],
932 DBUS_TYPE_INVALID)) {
933 log_error("Could not append arguments to message.");
934 r = -ENOMEM;
935 goto finish;
936 }
937
938 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 939 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 940 r = -EIO;
941 goto finish;
942 }
943
944 dbus_message_unref(m);
945 dbus_message_unref(reply);
946
947 m = reply = NULL;
948 }
949
950 r = 0;
951
952finish:
953 if (m)
954 dbus_message_unref(m);
955
956 if (reply)
957 dbus_message_unref(reply);
958
959 dbus_error_free(&error);
960
961 return r;
962}
963
964static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
965 DBusMessage *m = NULL, *reply = NULL;
966 DBusError error;
967 int r;
968 unsigned i;
969
970 dbus_error_init(&error);
971
514f4ef5
LP		 972 assert(bus);
973 assert(args);
974
ee5762e3
LP		 975 if (n <= 1)
976 return daemon_reload(bus, args, n);
977
7e4249b9
LP		 978 for (i = 1; i < n; i++) {
979 unsigned id;
980 const char *path;
981
982 if (!(m = dbus_message_new_method_call(
983 "org.freedesktop.systemd1",
984 "/org/freedesktop/systemd1",
985 "org.freedesktop.systemd1.Manager",
986 "GetJob"))) {
987 log_error("Could not allocate message.");
988 r = -ENOMEM;
989 goto finish;
990 }
991
992 if ((r = safe_atou(args[i], &id)) < 0) {
993 log_error("Failed to parse job id: %s", strerror(-r));
994 goto finish;
995 }
996
997 assert_cc(sizeof(uint32_t) == sizeof(id));
998 if (!dbus_message_append_args(m,
999 DBUS_TYPE_UINT32, &id,
1000 DBUS_TYPE_INVALID)) {
1001 log_error("Could not append arguments to message.");
1002 r = -ENOMEM;
1003 goto finish;
1004 }
1005
1006 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1007 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 1008 r = -EIO;
1009 goto finish;
1010 }
1011
1012 if (!dbus_message_get_args(reply, &error,
1013 DBUS_TYPE_OBJECT_PATH, &path,
1014 DBUS_TYPE_INVALID)) {
4cf5d675 1015 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 1016 r = -EIO;
1017 goto finish;
1018 }
1019
1020 dbus_message_unref(m);
1021 if (!(m = dbus_message_new_method_call(
1022 "org.freedesktop.systemd1",
1023 path,
1024 "org.freedesktop.systemd1.Job",
1025 "Cancel"))) {
1026 log_error("Could not allocate message.");
1027 r = -ENOMEM;
1028 goto finish;
1029 }
1030
1031 dbus_message_unref(reply);
1032 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1033 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 1034 r = -EIO;
1035 goto finish;
1036 }
1037
1038 dbus_message_unref(m);
1039 dbus_message_unref(reply);
1040 m = reply = NULL;
1041 }
1042
1043 r = 0;
1044
1045finish:
1046 if (m)
1047 dbus_message_unref(m);
1048
1049 if (reply)
1050 dbus_message_unref(reply);
1051
1052 dbus_error_free(&error);
1053
1054 return r;
1055}
1056
ee5762e3 1057static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
e364ad06 1058 DBusMessage *m = NULL, *reply = NULL;
45fb0699
LP		 1059 dbus_bool_t b = FALSE;
1060 DBusMessageIter iter, sub;
1061 const char
1062 *interface = "org.freedesktop.systemd1.Unit",
1063 *property = "NeedDaemonReload",
1064 *path;
1065
1066 /* We ignore all errors here, since this is used to show a warning only */
1067
1068 if (!(m = dbus_message_new_method_call(
1069 "org.freedesktop.systemd1",
1070 "/org/freedesktop/systemd1",
1071 "org.freedesktop.systemd1.Manager",
1072 "GetUnit")))
1073 goto finish;
1074
1075 if (!dbus_message_append_args(m,
1076 DBUS_TYPE_STRING, &unit,
1077 DBUS_TYPE_INVALID))
1078 goto finish;
1079
1080 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1081 goto finish;
1082
1083 if (!dbus_message_get_args(reply, NULL,
1084 DBUS_TYPE_OBJECT_PATH, &path,
1085 DBUS_TYPE_INVALID))
1086 goto finish;
1087
1088 dbus_message_unref(m);
1089 if (!(m = dbus_message_new_method_call(
1090 "org.freedesktop.systemd1",
1091 path,
1092 "org.freedesktop.DBus.Properties",
1093 "Get")))
1094 goto finish;
1095
1096 if (!dbus_message_append_args(m,
1097 DBUS_TYPE_STRING, &interface,
1098 DBUS_TYPE_STRING, &property,
1099 DBUS_TYPE_INVALID)) {
1100 goto finish;
1101 }
1102
1103 dbus_message_unref(reply);
1104 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1105 goto finish;
1106
1107 if (!dbus_message_iter_init(reply, &iter) ||
1108 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1109 goto finish;
1110
1111 dbus_message_iter_recurse(&iter, &sub);
1112
1113 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1114 goto finish;
1115
1116 dbus_message_iter_get_basic(&sub, &b);
1117
1118finish:
1119 if (m)
1120 dbus_message_unref(m);
1121
1122 if (reply)
1123 dbus_message_unref(reply);
1124
1125 return b;
1126}
1127
5e374895
LP		 1128typedef struct WaitData {
1129 Set *set;
5d44db4a 1130 char *result;
5e374895
LP		 1131} WaitData;
1132
7e4249b9
LP		 1133static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1134 DBusError error;
5e374895 1135 WaitData *d = data;
7e4249b9
LP		 1136
1137 assert(connection);
1138 assert(message);
5e374895 1139 assert(d);
7e4249b9
LP		 1140
1141 dbus_error_init(&error);
1142
54165a39
LP		 1143 log_debug("Got D-Bus request: %s.%s() on %s",
1144 dbus_message_get_interface(message),
1145 dbus_message_get_member(message),
1146 dbus_message_get_path(message));
7e4249b9
LP		 1147
1148 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1149 log_error("Warning! D-Bus connection terminated.");
1150 dbus_connection_close(connection);
1151
1152 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1153 uint32_t id;
5d44db4a 1154 const char *path, *result;
5e374895 1155 dbus_bool_t success = true;
7e4249b9 1156
5d44db4a
LP		 1157 if (dbus_message_get_args(message, &error,
1158 DBUS_TYPE_UINT32, &id,
1159 DBUS_TYPE_OBJECT_PATH, &path,
1160 DBUS_TYPE_STRING, &result,
1161 DBUS_TYPE_INVALID)) {
7e4249b9
LP		 1162 char *p;
1163
5d44db4a
LP		 1164 if ((p = set_remove(d->set, (char*) path)))
1165 free(p);
1166
1167 if (*result)
1168 d->result = strdup(result);
1169
1170 goto finish;
1171 }
1172#ifndef LEGACY
1173 dbus_error_free(&error);
1174
1175 if (dbus_message_get_args(message, &error,
1176 DBUS_TYPE_UINT32, &id,
1177 DBUS_TYPE_OBJECT_PATH, &path,
1178 DBUS_TYPE_BOOLEAN, &success,
1179 DBUS_TYPE_INVALID)) {
1180 char *p;
1181
1182 /* Compatibility with older systemd versions <
1183 * 19 during upgrades. This should be dropped
1184 * one day */
1185
5e374895 1186 if ((p = set_remove(d->set, (char*) path)))
7e4249b9 1187 free(p);
5e374895
LP		 1188
1189 if (!success)
5d44db4a
LP		 1190 d->result = strdup("failed");
1191
1192 goto finish;
7e4249b9 1193 }
5d44db4a
LP		 1194#endif
1195
1196 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 1197 }
1198
5d44db4a 1199finish:
7e4249b9
LP		 1200 dbus_error_free(&error);
1201 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1202}
1203
479ef5d3 1204static int enable_wait_for_jobs(DBusConnection *bus) {
7e4249b9 1205 DBusError error;
7e4249b9
LP		 1206
1207 assert(bus);
7e4249b9 1208
f4579ce7
LP		 1209 if (private_bus)
1210 return 0;
1211
7e4249b9 1212 dbus_error_init(&error);
7e4249b9
LP		 1213 dbus_bus_add_match(bus,
1214 "type='signal',"
1215 "sender='org.freedesktop.systemd1',"
1216 "interface='org.freedesktop.systemd1.Manager',"
1217 "member='JobRemoved',"
1218 "path='/org/freedesktop/systemd1'",
1219 &error);
1220
1221 if (dbus_error_is_set(&error)) {
4cf5d675 1222 log_error("Failed to add match: %s", bus_error_message(&error));
a567261a
LP		 1223 dbus_error_free(&error);
1224 return -EIO;
7e4249b9
LP		 1225 }
1226
479ef5d3 1227 /* This is slightly dirty, since we don't undo the match registrations. */
a567261a 1228 return 0;
7e4249b9
LP		 1229}
1230
479ef5d3
LP		 1231static int wait_for_jobs(DBusConnection *bus, Set *s) {
1232 int r;
5e374895 1233 WaitData d;
479ef5d3
LP		 1234
1235 assert(bus);
1236 assert(s);
1237
5e374895
LP		 1238 zero(d);
1239 d.set = s;
5e374895
LP		 1240
1241 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
479ef5d3
LP		 1242 log_error("Failed to add filter.");
1243 r = -ENOMEM;
1244 goto finish;
1245 }
1246
1247 while (!set_isempty(s) &&
1248 dbus_connection_read_write_dispatch(bus, -1))
1249 ;
1250
5d44db4a
LP		 1251 if (!arg_quiet && d.result) {
1252 if (streq(d.result, "timeout"))
1253 log_error("Job timed out.");
1254 else if (streq(d.result, "canceled"))
1255 log_error("Job canceled.");
1256 else if (streq(d.result, "dependency"))
1257 log_error("A dependency job failed. See system logs for details.");
d68201e9 1258 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
5d44db4a
LP		 1259 log_error("Job failed. See system logs and 'systemctl status' for details.");
1260 }
5e374895 1261
8e20e31a
LP		 1262 if (streq_ptr(d.result, "timeout"))
1263 r = -ETIME;
1264 else if (streq_ptr(d.result, "canceled"))
1265 r = -ECANCELED;
d68201e9 1266 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
8e20e31a
LP		 1267 r = -EIO;
1268 else
1269 r = 0;
1270
5d44db4a 1271 free(d.result);
479ef5d3
LP		 1272
1273finish:
1274 /* This is slightly dirty, since we don't undo the filter registration. */
1275
1276 return r;
1277}
1278
e4b61340
LP		 1279static int start_unit_one(
1280 DBusConnection *bus,
1281 const char *method,
1282 const char *name,
1283 const char *mode,
22f4096c 1284 DBusError *error,
e4b61340 1285 Set *s) {
7e4249b9 1286
7e4249b9 1287 DBusMessage *m = NULL, *reply = NULL;
45fb0699 1288 const char *path;
7e4249b9 1289 int r;
7e4249b9 1290
e4b61340
LP		 1291 assert(bus);
1292 assert(method);
1293 assert(name);
1294 assert(mode);
22f4096c 1295 assert(error);
6e905d93 1296 assert(arg_no_block || s);
7e4249b9
LP		 1297
1298 if (!(m = dbus_message_new_method_call(
1299 "org.freedesktop.systemd1",
1300 "/org/freedesktop/systemd1",
1301 "org.freedesktop.systemd1.Manager",
e4b61340 1302 method))) {
7e4249b9
LP		 1303 log_error("Could not allocate message.");
1304 r = -ENOMEM;
1305 goto finish;
1306 }
1307
1308 if (!dbus_message_append_args(m,
e4b61340 1309 DBUS_TYPE_STRING, &name,
7e4249b9
LP		 1310 DBUS_TYPE_STRING, &mode,
1311 DBUS_TYPE_INVALID)) {
1312 log_error("Could not append arguments to message.");
1313 r = -ENOMEM;
1314 goto finish;
1315 }
1316
22f4096c 1317 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
e4b61340 1318
22f4096c 1319 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
e4b61340
LP		 1320 /* There's always a fallback possible for
1321 * legacy actions. */
706900b7 1322 r = -EADDRNOTAVAIL;
e4b61340
LP		 1323 goto finish;
1324 }
1325
22f4096c 1326 log_error("Failed to issue method call: %s", bus_error_message(error));
7e4249b9
LP		 1327 r = -EIO;
1328 goto finish;
1329 }
1330
22f4096c 1331 if (!dbus_message_get_args(reply, error,
45fb0699
LP		 1332 DBUS_TYPE_OBJECT_PATH, &path,
1333 DBUS_TYPE_INVALID)) {
22f4096c 1334 log_error("Failed to parse reply: %s", bus_error_message(error));
45fb0699
LP		 1335 r = -EIO;
1336 goto finish;
1337 }
1338
ee5762e3 1339 if (need_daemon_reload(bus, name))
45fb0699 1340 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
af2d49f7 1341 arg_user ? "--user" : "--system");
45fb0699 1342
6e905d93 1343 if (!arg_no_block) {
e4b61340 1344 char *p;
7e4249b9 1345
7e4249b9
LP		 1346 if (!(p = strdup(path))) {
1347 log_error("Failed to duplicate path.");
1348 r = -ENOMEM;
1349 goto finish;
1350 }
1351
1352 if ((r = set_put(s, p)) < 0) {
e4b61340 1353 free(p);
7e4249b9
LP		 1354 log_error("Failed to add path to set.");
1355 goto finish;
1356 }
e4b61340 1357 }
7e4249b9 1358
706900b7 1359 r = 0;
22f4096c 1360
7e4249b9 1361finish:
7e4249b9
LP		 1362 if (m)
1363 dbus_message_unref(m);
1364
1365 if (reply)
1366 dbus_message_unref(reply);
1367
7e4249b9
LP		 1368 return r;
1369}
1370
514f4ef5
LP		 1371static enum action verb_to_action(const char *verb) {
1372 if (streq(verb, "halt"))
1373 return ACTION_HALT;
1374 else if (streq(verb, "poweroff"))
1375 return ACTION_POWEROFF;
1376 else if (streq(verb, "reboot"))
1377 return ACTION_REBOOT;
20b09ca7
LP		 1378 else if (streq(verb, "kexec"))
1379 return ACTION_KEXEC;
514f4ef5
LP		 1380 else if (streq(verb, "rescue"))
1381 return ACTION_RESCUE;
1382 else if (streq(verb, "emergency"))
1383 return ACTION_EMERGENCY;
1384 else if (streq(verb, "default"))
1385 return ACTION_DEFAULT;
20b09ca7
LP		 1386 else if (streq(verb, "exit"))
1387 return ACTION_EXIT;
514f4ef5
LP		 1388 else
1389 return ACTION_INVALID;
1390}
1391
e4b61340
LP		 1392static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1393
1394 static const char * const table[_ACTION_MAX] = {
514f4ef5
LP		 1395 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1396 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1397 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
20b09ca7 1398 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
514f4ef5
LP		 1399 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1400 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1401 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1402 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1403 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
f057408c 1404 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
20b09ca7
LP		 1405 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1406 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
e4b61340
LP		 1407 };
1408
22f4096c 1409 int r, ret = 0;
e4b61340 1410 unsigned i;
514f4ef5 1411 const char *method, *mode, *one_name;
e4b61340 1412 Set *s = NULL;
22f4096c
LP		 1413 DBusError error;
1414
1415 dbus_error_init(&error);
e4b61340 1416
514f4ef5
LP		 1417 assert(bus);
1418
501fc174
LP		 1419 spawn_ask_password_agent();
1420
e4b61340
LP		 1421 if (arg_action == ACTION_SYSTEMCTL) {
1422 method =
a76f7be2
LP		 1423 streq(args[0], "stop") ||
1424 streq(args[0], "condstop") ? "StopUnit" :
6f28c033
LP		 1425 streq(args[0], "reload") ? "ReloadUnit" :
1426 streq(args[0], "restart") ? "RestartUnit" :
d68201e9 1427
aa5939a3
MS		 1428 streq(args[0], "try-restart") ||
1429 streq(args[0], "condrestart") ? "TryRestartUnit" :
d68201e9 1430
6f28c033 1431 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
d68201e9 1432
9d8a57ff 1433 streq(args[0], "reload-or-try-restart") ||
64e5f1b7 1434 streq(args[0], "condreload") ||
d68201e9 1435
aa5939a3 1436 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
6f28c033 1437 "StartUnit";
e4b61340
LP		 1438
1439 mode =
514f4ef5
LP		 1440 (streq(args[0], "isolate") ||
1441 streq(args[0], "rescue") ||
e67c3609 1442 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
e4b61340 1443
514f4ef5 1444 one_name = table[verb_to_action(args[0])];
e4b61340 1445
e4b61340
LP		 1446 } else {
1447 assert(arg_action < ELEMENTSOF(table));
1448 assert(table[arg_action]);
1449
1450 method = "StartUnit";
514f4ef5
LP		 1451
1452 mode = (arg_action == ACTION_EMERGENCY ||
6f0d624e
LP		 1453 arg_action == ACTION_RESCUE ||
1454 arg_action == ACTION_RUNLEVEL2 ||
1455 arg_action == ACTION_RUNLEVEL3 ||
1456 arg_action == ACTION_RUNLEVEL4 ||
1457 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
514f4ef5
LP		 1458
1459 one_name = table[arg_action];
1460 }
1461
6e905d93 1462 if (!arg_no_block) {
22f4096c
LP		 1463 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1464 log_error("Could not watch jobs: %s", strerror(-ret));
514f4ef5
LP		 1465 goto finish;
1466 }
1467
1468 if (!(s = set_new(string_hash_func, string_compare_func))) {
1469 log_error("Failed to allocate set.");
22f4096c 1470 ret = -ENOMEM;
514f4ef5
LP		 1471 goto finish;
1472 }
e4b61340
LP		 1473 }
1474
514f4ef5 1475 if (one_name) {
22f4096c 1476 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
514f4ef5
LP		 1477 goto finish;
1478 } else {
e4b61340 1479 for (i = 1; i < n; i++)
22f4096c 1480 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
706900b7 1481 ret = translate_bus_error_to_exit_status(r, &error);
22f4096c
LP		 1482 dbus_error_free(&error);
1483 }
e4b61340
LP		 1484 }
1485
6e905d93 1486 if (!arg_no_block)
22f4096c
LP		 1487 if ((r = wait_for_jobs(bus, s)) < 0) {
1488 ret = r;
fbc43921 1489 goto finish;
22f4096c 1490 }
514f4ef5 1491
e4b61340
LP		 1492finish:
1493 if (s)
1494 set_free_free(s);
1495
22f4096c
LP		 1496 dbus_error_free(&error);
1497
1498 return ret;
e4b61340
LP		 1499}
1500
514f4ef5 1501static int start_special(DBusConnection *bus, char **args, unsigned n) {
983d9c90
LP		 1502 int r;
1503
514f4ef5
LP		 1504 assert(bus);
1505 assert(args);
1506
20b09ca7
LP		 1507 if (arg_force &&
1508 (streq(args[0], "halt") ||
1509 streq(args[0], "poweroff") ||
1510 streq(args[0], "reboot") ||
1511 streq(args[0], "kexec") ||
1512 streq(args[0], "exit")))
1513 return daemon_reload(bus, args, n);
1514
983d9c90
LP		 1515 r = start_unit(bus, args, n);
1516
1517 if (r >= 0)
1518 warn_wall(verb_to_action(args[0]));
514f4ef5 1519
983d9c90 1520 return r;
514f4ef5
LP		 1521}
1522
0183528f
LP		 1523static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1524 DBusMessage *m = NULL, *reply = NULL;
1525 const char
1526 *interface = "org.freedesktop.systemd1.Unit",
1527 *property = "ActiveState";
22f4096c 1528 int r = 3; /* According to LSB: "program is not running" */
0183528f
LP		 1529 DBusError error;
1530 unsigned i;
1531
1532 assert(bus);
1533 assert(args);
1534
1535 dbus_error_init(&error);
1536
1537 for (i = 1; i < n; i++) {
1538 const char *path = NULL;
1539 const char *state;
1540 DBusMessageIter iter, sub;
1541
1542 if (!(m = dbus_message_new_method_call(
1543 "org.freedesktop.systemd1",
1544 "/org/freedesktop/systemd1",
1545 "org.freedesktop.systemd1.Manager",
1546 "GetUnit"))) {
1547 log_error("Could not allocate message.");
1548 r = -ENOMEM;
1549 goto finish;
1550 }
1551
1552 if (!dbus_message_append_args(m,
1553 DBUS_TYPE_STRING, &args[i],
1554 DBUS_TYPE_INVALID)) {
1555 log_error("Could not append arguments to message.");
1556 r = -ENOMEM;
1557 goto finish;
1558 }
1559
1560 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1561
1562 /* Hmm, cannot figure out anything about this unit... */
1563 if (!arg_quiet)
1564 puts("unknown");
1565
ed2d7a44 1566 dbus_error_free(&error);
8a0867d6 1567 dbus_message_unref(m);
0183528f
LP		 1568 continue;
1569 }
1570
1571 if (!dbus_message_get_args(reply, &error,
1572 DBUS_TYPE_OBJECT_PATH, &path,
1573 DBUS_TYPE_INVALID)) {
4cf5d675 1574 log_error("Failed to parse reply: %s", bus_error_message(&error));
0183528f
LP		 1575 r = -EIO;
1576 goto finish;
1577 }
1578
1579 dbus_message_unref(m);
1580 if (!(m = dbus_message_new_method_call(
1581 "org.freedesktop.systemd1",
1582 path,
1583 "org.freedesktop.DBus.Properties",
1584 "Get"))) {
1585 log_error("Could not allocate message.");
1586 r = -ENOMEM;
1587 goto finish;
1588 }
1589
1590 if (!dbus_message_append_args(m,
1591 DBUS_TYPE_STRING, &interface,
1592 DBUS_TYPE_STRING, &property,
1593 DBUS_TYPE_INVALID)) {
1594 log_error("Could not append arguments to message.");
1595 r = -ENOMEM;
1596 goto finish;
1597 }
1598
1599 dbus_message_unref(reply);
1600 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 1601 log_error("Failed to issue method call: %s", bus_error_message(&error));
0183528f
LP		 1602 r = -EIO;
1603 goto finish;
1604 }
1605
1606 if (!dbus_message_iter_init(reply, &iter) ||
1607 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1608 log_error("Failed to parse reply.");
1609 r = -EIO;
1610 goto finish;
1611 }
1612
1613 dbus_message_iter_recurse(&iter, &sub);
1614
1615 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1616 log_error("Failed to parse reply.");
1617 r = -EIO;
1618 goto finish;
1619 }
1620
1621 dbus_message_iter_get_basic(&sub, &state);
1622
1623 if (!arg_quiet)
1624 puts(state);
1625
f1e36d67 1626 if (streq(state, "active") || streq(state, "reloading"))
0183528f
LP		 1627 r = 0;
1628
1629 dbus_message_unref(m);
1630 dbus_message_unref(reply);
1631 m = reply = NULL;
1632 }
1633
1634finish:
1635 if (m)
1636 dbus_message_unref(m);
1637
1638 if (reply)
1639 dbus_message_unref(reply);
1640
1641 dbus_error_free(&error);
1642
1643 return r;
48220598
LP		 1644}
1645
8a0867d6
LP		 1646static int kill_unit(DBusConnection *bus, char **args, unsigned n) {
1647 DBusMessage *m = NULL, *reply = NULL;
1648 int r = 0;
1649 DBusError error;
1650 unsigned i;
1651
1652 assert(bus);
1653 assert(args);
1654
1655 dbus_error_init(&error);
1656
1657 if (!arg_kill_who)
1658 arg_kill_who = "all";
1659
1660 if (!arg_kill_mode)
1661 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
1662
1663 for (i = 1; i < n; i++) {
1664
1665 if (!(m = dbus_message_new_method_call(
1666 "org.freedesktop.systemd1",
1667 "/org/freedesktop/systemd1",
1668 "org.freedesktop.systemd1.Manager",
1669 "KillUnit"))) {
1670 log_error("Could not allocate message.");
1671 r = -ENOMEM;
1672 goto finish;
1673 }
1674
1675 if (!dbus_message_append_args(m,
1676 DBUS_TYPE_STRING, &args[i],
1677 DBUS_TYPE_STRING, &arg_kill_who,
1678 DBUS_TYPE_STRING, &arg_kill_mode,
1679 DBUS_TYPE_INT32, &arg_signal,
1680 DBUS_TYPE_INVALID)) {
1681 log_error("Could not append arguments to message.");
1682 r = -ENOMEM;
1683 goto finish;
1684 }
1685
1686 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1687 log_error("Failed to issue method call: %s", bus_error_message(&error));
1688 dbus_error_free(&error);
1689 r = -EIO;
1690 }
1691
1692 dbus_message_unref(m);
1693
1694 if (reply)
1695 dbus_message_unref(reply);
1696 m = reply = NULL;
1697 }
1698
1699finish:
1700 if (m)
1701 dbus_message_unref(m);
1702
1703 if (reply)
1704 dbus_message_unref(reply);
1705
1706 dbus_error_free(&error);
1707
1708 return r;
1709}
1710
582a507f 1711typedef struct ExecStatusInfo {
0129173a
LP		 1712 char *name;
1713
582a507f
LP		 1714 char *path;
1715 char **argv;
1716
b708e7ce
LP		 1717 bool ignore;
1718
582a507f
LP		 1719 usec_t start_timestamp;
1720 usec_t exit_timestamp;
1721 pid_t pid;
1722 int code;
1723 int status;
1724
1725 LIST_FIELDS(struct ExecStatusInfo, exec);
1726} ExecStatusInfo;
1727
1728static void exec_status_info_free(ExecStatusInfo *i) {
1729 assert(i);
1730
0129173a 1731 free(i->name);
582a507f
LP		 1732 free(i->path);
1733 strv_free(i->argv);
1734 free(i);
1735}
1736
1737static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
b21a0ef8 1738 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
582a507f
LP		 1739 DBusMessageIter sub2, sub3;
1740 const char*path;
1741 unsigned n;
1742 uint32_t pid;
1743 int32_t code, status;
b708e7ce 1744 dbus_bool_t ignore;
582a507f
LP		 1745
1746 assert(i);
1747 assert(i);
1748
1749 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1750 return -EIO;
1751
1752 dbus_message_iter_recurse(sub, &sub2);
1753
1754 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1755 return -EIO;
1756
1757 if (!(i->path = strdup(path)))
1758 return -ENOMEM;
1759
1760 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1761 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1762 return -EIO;
1763
1764 n = 0;
1765 dbus_message_iter_recurse(&sub2, &sub3);
1766 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1767 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1768 dbus_message_iter_next(&sub3);
1769 n++;
1770 }
1771
1772
1773 if (!(i->argv = new0(char*, n+1)))
1774 return -ENOMEM;
1775
1776 n = 0;
1777 dbus_message_iter_recurse(&sub2, &sub3);
1778 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1779 const char *s;
1780
1781 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1782 dbus_message_iter_get_basic(&sub3, &s);
1783 dbus_message_iter_next(&sub3);
1784
1785 if (!(i->argv[n++] = strdup(s)))
1786 return -ENOMEM;
1787 }
1788
1789 if (!dbus_message_iter_next(&sub2) ||
b708e7ce 1790 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
582a507f 1791 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
b21a0ef8 1792 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
582a507f 1793 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
b21a0ef8 1794 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
582a507f
LP		 1795 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1796 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1797 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1798 return -EIO;
1799
b708e7ce 1800 i->ignore = ignore;
582a507f
LP		 1801 i->start_timestamp = (usec_t) start_timestamp;
1802 i->exit_timestamp = (usec_t) exit_timestamp;
1803 i->pid = (pid_t) pid;
1804 i->code = code;
1805 i->status = status;
1806
1807 return 0;
1808}
1809
61cbdc4b
LP		 1810typedef struct UnitStatusInfo {
1811 const char *id;
1812 const char *load_state;
1813 const char *active_state;
1814 const char *sub_state;
1815
1816 const char *description;
4a9e2fff 1817 const char *following;
61cbdc4b 1818
c31b4423 1819 const char *path;
61cbdc4b
LP		 1820 const char *default_control_group;
1821
584be568
LP		 1822 usec_t inactive_exit_timestamp;
1823 usec_t active_enter_timestamp;
1824 usec_t active_exit_timestamp;
1825 usec_t inactive_enter_timestamp;
1826
45fb0699
LP		 1827 bool need_daemon_reload;
1828
61cbdc4b
LP		 1829 /* Service */
1830 pid_t main_pid;
1831 pid_t control_pid;
1832 const char *status_text;
d06dacd0 1833 bool running:1;
07459bb6 1834#ifdef HAVE_SYSV_COMPAT
d06dacd0 1835 bool is_sysv:1;
07459bb6 1836#endif
61cbdc4b
LP		 1837
1838 usec_t start_timestamp;
1839 usec_t exit_timestamp;
1840
1841 int exit_code, exit_status;
1842
90bbc946
LP		 1843 usec_t condition_timestamp;
1844 bool condition_result;
1845
61cbdc4b
LP		 1846 /* Socket */
1847 unsigned n_accepted;
1848 unsigned n_connections;
b8131a87 1849 bool accept;
61cbdc4b
LP		 1850
1851 /* Device */
1852 const char *sysfs_path;
1853
1854 /* Mount, Automount */
1855 const char *where;
1856
1857 /* Swap */
1858 const char *what;
582a507f
LP		 1859
1860 LIST_HEAD(ExecStatusInfo, exec);
61cbdc4b
LP		 1861} UnitStatusInfo;
1862
1863static void print_status_info(UnitStatusInfo *i) {
582a507f 1864 ExecStatusInfo *p;
2ee68f72 1865 const char *on, *off, *ss;
584be568
LP		 1866 usec_t timestamp;
1867 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1868 char since2[FORMAT_TIMESTAMP_MAX], *s2;
582a507f 1869
61cbdc4b
LP		 1870 assert(i);
1871
1872 /* This shows pretty information about a unit. See
1873 * print_property() for a low-level property printer */
1874
1875 printf("%s", strna(i->id));
1876
1877 if (i->description && !streq_ptr(i->id, i->description))
1878 printf(" - %s", i->description);
1879
1880 printf("\n");
1881
4a9e2fff
LP		 1882 if (i->following)
1883 printf("\t Follow: unit currently follows state of %s\n", i->following);
1884
00dc5d76
LP		 1885 if (streq_ptr(i->load_state, "failed") ||
1886 streq_ptr(i->load_state, "banned")) {
c31b4423
LP		 1887 on = ansi_highlight(true);
1888 off = ansi_highlight(false);
1889 } else
1890 on = off = "";
1891
1892 if (i->path)
1893 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
61cbdc4b 1894 else
c31b4423 1895 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
61cbdc4b 1896
2ee68f72
LP		 1897 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1898
fdf20a31 1899 if (streq_ptr(i->active_state, "failed")) {
2ee68f72
LP		 1900 on = ansi_highlight(true);
1901 off = ansi_highlight(false);
1902 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1903 on = ansi_highlight_green(true);
1904 off = ansi_highlight_green(false);
1905 } else
1906 on = off = "";
1907
1908 if (ss)
584be568 1909 printf("\t Active: %s%s (%s)%s",
2ee68f72
LP		 1910 on,
1911 strna(i->active_state),
1912 ss,
1913 off);
1914 else
584be568 1915 printf("\t Active: %s%s%s",
2ee68f72
LP		 1916 on,
1917 strna(i->active_state),
1918 off);
61cbdc4b 1919
584be568
LP		 1920 timestamp = (streq_ptr(i->active_state, "active") ||
1921 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1922 (streq_ptr(i->active_state, "inactive") ||
fdf20a31 1923 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
584be568
LP		 1924 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1925 i->active_exit_timestamp;
1926
1927 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1928 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1929
1930 if (s1)
538da63d 1931 printf(" since %s; %s\n", s2, s1);
584be568 1932 else if (s2)
538da63d 1933 printf(" since %s\n", s2);
584be568
LP		 1934 else
1935 printf("\n");
1936
90bbc946
LP		 1937 if (!i->condition_result && i->condition_timestamp > 0) {
1938 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
1939 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
1940
1941 if (s1)
1942 printf("\t start condition failed at %s; %s\n", s2, s1);
1943 else if (s2)
1944 printf("\t start condition failed at %s\n", s2);
1945 }
1946
61cbdc4b
LP		 1947 if (i->sysfs_path)
1948 printf("\t Device: %s\n", i->sysfs_path);
9feeba4b 1949 if (i->where)
61cbdc4b 1950 printf("\t Where: %s\n", i->where);
9feeba4b 1951 if (i->what)
61cbdc4b
LP		 1952 printf("\t What: %s\n", i->what);
1953
b8131a87 1954 if (i->accept)
61cbdc4b
LP		 1955 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1956
582a507f
LP		 1957 LIST_FOREACH(exec, p, i->exec) {
1958 char *t;
9a57c629 1959 bool good;
582a507f
LP		 1960
1961 /* Only show exited processes here */
1962 if (p->code == 0)
1963 continue;
1964
1965 t = strv_join(p->argv, " ");
9a57c629 1966 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
582a507f
LP		 1967 free(t);
1968
9a57c629
LP		 1969#ifdef HAVE_SYSV_COMPAT
1970 if (i->is_sysv)
1971 good = is_clean_exit_lsb(p->code, p->status);
1972 else
1973#endif
1974 good = is_clean_exit(p->code, p->status);
1975
1976 if (!good) {
1977 on = ansi_highlight(true);
1978 off = ansi_highlight(false);
1979 } else
1980 on = off = "";
1981
1982 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
1983
d06dacd0
LP		 1984 if (p->code == CLD_EXITED) {
1985 const char *c;
1986
582a507f 1987 printf("status=%i", p->status);
d06dacd0 1988
07459bb6 1989#ifdef HAVE_SYSV_COMPAT
d06dacd0 1990 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 1991#else
1992 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1993#endif
d06dacd0
LP		 1994 printf("/%s", c);
1995
1996 } else
582a507f 1997 printf("signal=%s", signal_to_string(p->status));
9a57c629
LP		 1998
1999 printf(")%s\n", off);
2000
2001 on = off = NULL;
582a507f
LP		 2002
2003 if (i->main_pid == p->pid &&
2004 i->start_timestamp == p->start_timestamp &&
2005 i->exit_timestamp == p->start_timestamp)
2006 /* Let's not show this twice */
2007 i->main_pid = 0;
2008
2009 if (p->pid == i->control_pid)
2010 i->control_pid = 0;
2011 }
2012
61cbdc4b
LP		 2013 if (i->main_pid > 0 || i->control_pid > 0) {
2014 printf("\t");
2015
2016 if (i->main_pid > 0) {
f3d41013 2017 printf("Main PID: %u", (unsigned) i->main_pid);
61cbdc4b
LP		 2018
2019 if (i->running) {
2020 char *t = NULL;
2021 get_process_name(i->main_pid, &t);
2022 if (t) {
2023 printf(" (%s)", t);
2024 free(t);
2025 }
6d4fc029 2026 } else if (i->exit_code > 0) {
61cbdc4b
LP		 2027 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2028
d06dacd0
LP		 2029 if (i->exit_code == CLD_EXITED) {
2030 const char *c;
2031
61cbdc4b 2032 printf("status=%i", i->exit_status);
d06dacd0 2033
07459bb6 2034#ifdef HAVE_SYSV_COMPAT
d06dacd0 2035 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
07459bb6
FF		 2036#else
2037 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
2038#endif
d06dacd0
LP		 2039 printf("/%s", c);
2040
2041 } else
582a507f 2042 printf("signal=%s", signal_to_string(i->exit_status));
6d4fc029
LP		 2043 printf(")");
2044 }
61cbdc4b
LP		 2045 }
2046
2047 if (i->main_pid > 0 && i->control_pid > 0)
2048 printf(";");
2049
2050 if (i->control_pid > 0) {
2051 char *t = NULL;
2052
2053 printf(" Control: %u", (unsigned) i->control_pid);
2054
2055 get_process_name(i->control_pid, &t);
2056 if (t) {
2057 printf(" (%s)", t);
2058 free(t);
2059 }
2060 }
2061
2062 printf("\n");
2063 }
2064
17bb7382
LP		 2065 if (i->status_text)
2066 printf("\t Status: \"%s\"\n", i->status_text);
2067
c59760ee 2068 if (i->default_control_group) {
ab35fb1b
LP		 2069 unsigned c;
2070
61cbdc4b 2071 printf("\t CGroup: %s\n", i->default_control_group);
ab35fb1b 2072
a8f11321
LP		 2073 if (arg_transport != TRANSPORT_SSH) {
2074 if ((c = columns()) > 18)
2075 c -= 18;
2076 else
2077 c = 0;
ab35fb1b 2078
a8f11321
LP		 2079 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
2080 }
c59760ee 2081 }
45fb0699
LP		 2082
2083 if (i->need_daemon_reload)
2cc59dbf
LP		 2084 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2085 ansi_highlight(true),
2086 ansi_highlight(false),
af2d49f7 2087 arg_user ? "--user" : "--system");
61cbdc4b
LP		 2088}
2089
2090static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2091
2092 switch (dbus_message_iter_get_arg_type(iter)) {
2093
2094 case DBUS_TYPE_STRING: {
2095 const char *s;
2096
2097 dbus_message_iter_get_basic(iter, &s);
2098
2099 if (s[0]) {
2100 if (streq(name, "Id"))
2101 i->id = s;
2102 else if (streq(name, "LoadState"))
2103 i->load_state = s;
2104 else if (streq(name, "ActiveState"))
2105 i->active_state = s;
2106 else if (streq(name, "SubState"))
2107 i->sub_state = s;
2108 else if (streq(name, "Description"))
2109 i->description = s;
2110 else if (streq(name, "FragmentPath"))
c31b4423 2111 i->path = s;
07459bb6 2112#ifdef HAVE_SYSV_COMPAT
d06dacd0
LP		 2113 else if (streq(name, "SysVPath")) {
2114 i->is_sysv = true;
c31b4423 2115 i->path = s;
07459bb6
FF		 2116 }
2117#endif
2118 else if (streq(name, "DefaultControlGroup"))
61cbdc4b
LP		 2119 i->default_control_group = s;
2120 else if (streq(name, "StatusText"))
2121 i->status_text = s;
2122 else if (streq(name, "SysFSPath"))
2123 i->sysfs_path = s;
2124 else if (streq(name, "Where"))
2125 i->where = s;
2126 else if (streq(name, "What"))
2127 i->what = s;
4a9e2fff
LP		 2128 else if (streq(name, "Following"))
2129 i->following = s;
61cbdc4b
LP		 2130 }
2131
2132 break;
2133 }
2134
b8131a87
LP		 2135 case DBUS_TYPE_BOOLEAN: {
2136 dbus_bool_t b;
2137
2138 dbus_message_iter_get_basic(iter, &b);
2139
2140 if (streq(name, "Accept"))
2141 i->accept = b;
45fb0699
LP		 2142 else if (streq(name, "NeedDaemonReload"))
2143 i->need_daemon_reload = b;
90bbc946
LP		 2144 else if (streq(name, "ConditionResult"))
2145 i->condition_result = b;
b8131a87
LP		 2146
2147 break;
2148 }
2149
61cbdc4b
LP		 2150 case DBUS_TYPE_UINT32: {
2151 uint32_t u;
2152
2153 dbus_message_iter_get_basic(iter, &u);
2154
2155 if (streq(name, "MainPID")) {
2156 if (u > 0) {
2157 i->main_pid = (pid_t) u;
2158 i->running = true;
2159 }
2160 } else if (streq(name, "ControlPID"))
2161 i->control_pid = (pid_t) u;
2162 else if (streq(name, "ExecMainPID")) {
2163 if (u > 0)
2164 i->main_pid = (pid_t) u;
2165 } else if (streq(name, "NAccepted"))
2166 i->n_accepted = u;
2167 else if (streq(name, "NConnections"))
2168 i->n_connections = u;
2169
2170 break;
2171 }
2172
2173 case DBUS_TYPE_INT32: {
2174 int32_t j;
2175
2176 dbus_message_iter_get_basic(iter, &j);
2177
2178 if (streq(name, "ExecMainCode"))
2179 i->exit_code = (int) j;
2180 else if (streq(name, "ExecMainStatus"))
2181 i->exit_status = (int) j;
2182
2183 break;
2184 }
2185
2186 case DBUS_TYPE_UINT64: {
2187 uint64_t u;
2188
2189 dbus_message_iter_get_basic(iter, &u);
2190
2191 if (streq(name, "ExecMainStartTimestamp"))
2192 i->start_timestamp = (usec_t) u;
2193 else if (streq(name, "ExecMainExitTimestamp"))
2194 i->exit_timestamp = (usec_t) u;
584be568
LP		 2195 else if (streq(name, "ActiveEnterTimestamp"))
2196 i->active_enter_timestamp = (usec_t) u;
2197 else if (streq(name, "InactiveEnterTimestamp"))
2198 i->inactive_enter_timestamp = (usec_t) u;
2199 else if (streq(name, "InactiveExitTimestamp"))
2200 i->inactive_exit_timestamp = (usec_t) u;
2201 else if (streq(name, "ActiveExitTimestamp"))
2202 i->active_exit_timestamp = (usec_t) u;
90bbc946
LP		 2203 else if (streq(name, "ConditionTimestamp"))
2204 i->condition_timestamp = (usec_t) u;
61cbdc4b
LP		 2205
2206 break;
2207 }
582a507f
LP		 2208
2209 case DBUS_TYPE_ARRAY: {
2210
2211 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2212 startswith(name, "Exec")) {
2213 DBusMessageIter sub;
2214
2215 dbus_message_iter_recurse(iter, &sub);
2216 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2217 ExecStatusInfo *info;
2218 int r;
2219
2220 if (!(info = new0(ExecStatusInfo, 1)))
2221 return -ENOMEM;
2222
0129173a
LP		 2223 if (!(info->name = strdup(name))) {
2224 free(info);
2225 return -ENOMEM;
2226 }
2227
582a507f
LP		 2228 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2229 free(info);
2230 return r;
2231 }
2232
2233 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2234
2235 dbus_message_iter_next(&sub);
2236 }
2237 }
2238
2239 break;
2240 }
61cbdc4b
LP		 2241 }
2242
2243 return 0;
2244}
2245
48220598
LP		 2246static int print_property(const char *name, DBusMessageIter *iter) {
2247 assert(name);
2248 assert(iter);
2249
61cbdc4b
LP		 2250 /* This is a low-level property printer, see
2251 * print_status_info() for the nicer output */
2252
ea4a240d 2253 if (arg_property && !strv_find(arg_property, name))
48220598
LP		 2254 return 0;
2255
2256 switch (dbus_message_iter_get_arg_type(iter)) {
2257
2258 case DBUS_TYPE_STRING: {
2259 const char *s;
2260 dbus_message_iter_get_basic(iter, &s);
2261
2262 if (arg_all || s[0])
2263 printf("%s=%s\n", name, s);
2264
2265 return 0;
2266 }
2267
2268 case DBUS_TYPE_BOOLEAN: {
2269 dbus_bool_t b;
2270 dbus_message_iter_get_basic(iter, &b);
2271 printf("%s=%s\n", name, yes_no(b));
2272
2273 return 0;
2274 }
2275
2276 case DBUS_TYPE_UINT64: {
2277 uint64_t u;
2278 dbus_message_iter_get_basic(iter, &u);
2279
2280 /* Yes, heuristics! But we can change this check
2281 * should it turn out to not be sufficient */
2282
b21a0ef8 2283 if (endswith(name, "Timestamp")) {
48220598
LP		 2284 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
2285
2286 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
2287 printf("%s=%s\n", name, strempty(t));
552e4331
LP		 2288 } else if (strstr(name, "USec")) {
2289 char timespan[FORMAT_TIMESPAN_MAX];
2290
2291 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
48220598
LP		 2292 } else
2293 printf("%s=%llu\n", name, (unsigned long long) u);
2294
2295 return 0;
2296 }
2297
2298 case DBUS_TYPE_UINT32: {
2299 uint32_t u;
2300 dbus_message_iter_get_basic(iter, &u);
2301
5bd07073 2302 if (strstr(name, "UMask") || strstr(name, "Mode"))
48220598
LP		 2303 printf("%s=%04o\n", name, u);
2304 else
2305 printf("%s=%u\n", name, (unsigned) u);
2306
2307 return 0;
2308 }
2309
2310 case DBUS_TYPE_INT32: {
2311 int32_t i;
2312 dbus_message_iter_get_basic(iter, &i);
2313
2314 printf("%s=%i\n", name, (int) i);
2315 return 0;
2316 }
2317
05d6a3b6
LP		 2318 case DBUS_TYPE_DOUBLE: {
2319 double d;
2320 dbus_message_iter_get_basic(iter, &d);
2321
2322 printf("%s=%g\n", name, d);
2323 return 0;
2324 }
2325
48220598
LP		 2326 case DBUS_TYPE_STRUCT: {
2327 DBusMessageIter sub;
2328 dbus_message_iter_recurse(iter, &sub);
2329
ebf57b80 2330 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
48220598
LP		 2331 uint32_t u;
2332
2333 dbus_message_iter_get_basic(&sub, &u);
2334
2335 if (u)
2336 printf("%s=%u\n", name, (unsigned) u);
2337 else if (arg_all)
2338 printf("%s=\n", name);
2339
2340 return 0;
ebf57b80 2341 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
48220598
LP		 2342 const char *s;
2343
2344 dbus_message_iter_get_basic(&sub, &s);
2345
2346 if (arg_all || s[0])
2347 printf("%s=%s\n", name, s);
2348
2349 return 0;
2350 }
2351
2352 break;
2353 }
2354
2355 case DBUS_TYPE_ARRAY:
2356
2357 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2358 DBusMessageIter sub;
2359 bool space = false;
2360
2361 dbus_message_iter_recurse(iter, &sub);
48220598
LP		 2362 if (arg_all ||
2363 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2364 printf("%s=", name);
2365
2366 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2367 const char *s;
2368
2369 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2370 dbus_message_iter_get_basic(&sub, &s);
2371 printf("%s%s", space ? " " : "", s);
2372
2373 space = true;
2374 dbus_message_iter_next(&sub);
2375 }
2376
2377 puts("");
2378 }
2379
ebf57b80 2380 return 0;
582a507f 2381
82c121a4
LP		 2382 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2383 DBusMessageIter sub;
2384
2385 dbus_message_iter_recurse(iter, &sub);
82c121a4
LP		 2386 if (arg_all ||
2387 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2388 printf("%s=", name);
2389
2390 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2391 uint8_t u;
ebf57b80 2392
82c121a4
LP		 2393 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2394 dbus_message_iter_get_basic(&sub, &u);
2395 printf("%02x", u);
2396
2397 dbus_message_iter_next(&sub);
2398 }
2399
2400 puts("");
2401 }
2402
2403 return 0;
582a507f 2404
8c7be95e
LP		 2405 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2406 DBusMessageIter sub, sub2;
2407
2408 dbus_message_iter_recurse(iter, &sub);
2409 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2410 const char *path;
2411 dbus_bool_t ignore;
2412
2413 dbus_message_iter_recurse(&sub, &sub2);
2414
2415 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2416 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2417 printf("EnvironmentFile=%s (ignore=%s)\n", path, yes_no(ignore));
2418
2419 dbus_message_iter_next(&sub);
2420 }
2421
2422 return 0;
2423
ebf57b80
LP		 2424 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2425 DBusMessageIter sub, sub2;
2426
2427 dbus_message_iter_recurse(iter, &sub);
ebf57b80
LP		 2428 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2429 const char *type, *path;
2430
2431 dbus_message_iter_recurse(&sub, &sub2);
2432
2433 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2434 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2435 printf("%s=%s\n", type, path);
2436
2437 dbus_message_iter_next(&sub);
2438 }
2439
707e5e52 2440 return 0;
582a507f 2441
707e5e52
LP		 2442 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2443 DBusMessageIter sub, sub2;
2444
2445 dbus_message_iter_recurse(iter, &sub);
707e5e52
LP		 2446 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2447 const char *base;
2448 uint64_t value, next_elapse;
2449
2450 dbus_message_iter_recurse(&sub, &sub2);
2451
2452 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2453 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
552e4331
LP		 2454 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2455 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2456
2457 printf("%s={ value=%s ; next_elapse=%s }\n",
fe68089d 2458 base,
552e4331
LP		 2459 format_timespan(timespan1, sizeof(timespan1), value),
2460 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2461 }
fe68089d
LP		 2462
2463 dbus_message_iter_next(&sub);
2464 }
2465
2466 return 0;
fe68089d 2467
582a507f
LP		 2468 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2469 DBusMessageIter sub;
fe68089d
LP		 2470
2471 dbus_message_iter_recurse(iter, &sub);
fe68089d 2472 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
582a507f 2473 ExecStatusInfo info;
fe68089d 2474
582a507f
LP		 2475 zero(info);
2476 if (exec_status_info_deserialize(&sub, &info) >= 0) {
fe68089d 2477 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
582a507f
LP		 2478 char *t;
2479
2480 t = strv_join(info.argv, " ");
2481
b708e7ce 2482 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		 2483 name,
2484 strna(info.path),
2485 strna(t),
b708e7ce 2486 yes_no(info.ignore),
582a507f
LP		 2487 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2488 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2489 (unsigned) info. pid,
2490 sigchld_code_to_string(info.code),
2491 info.status,
2492 info.code == CLD_EXITED ? "" : "/",
2493 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
fe68089d 2494
582a507f 2495 free(t);
fe68089d
LP		 2496 }
2497
582a507f
LP		 2498 free(info.path);
2499 strv_free(info.argv);
707e5e52
LP		 2500
2501 dbus_message_iter_next(&sub);
2502 }
2503
48220598
LP		 2504 return 0;
2505 }
2506
2507 break;
2508 }
2509
2510 if (arg_all)
2511 printf("%s=[unprintable]\n", name);
2512
2513 return 0;
2514}
2515
be8088a2 2516static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
48220598
LP		 2517 DBusMessage *m = NULL, *reply = NULL;
2518 const char *interface = "";
2519 int r;
2520 DBusError error;
2521 DBusMessageIter iter, sub, sub2, sub3;
61cbdc4b 2522 UnitStatusInfo info;
582a507f 2523 ExecStatusInfo *p;
48220598
LP		 2524
2525 assert(bus);
2526 assert(path);
61cbdc4b 2527 assert(new_line);
48220598 2528
61cbdc4b 2529 zero(info);
48220598
LP		 2530 dbus_error_init(&error);
2531
2532 if (!(m = dbus_message_new_method_call(
2533 "org.freedesktop.systemd1",
2534 path,
2535 "org.freedesktop.DBus.Properties",
2536 "GetAll"))) {
2537 log_error("Could not allocate message.");
2538 r = -ENOMEM;
2539 goto finish;
2540 }
2541
2542 if (!dbus_message_append_args(m,
2543 DBUS_TYPE_STRING, &interface,
2544 DBUS_TYPE_INVALID)) {
2545 log_error("Could not append arguments to message.");
2546 r = -ENOMEM;
2547 goto finish;
2548 }
2549
2550 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2551 log_error("Failed to issue method call: %s", bus_error_message(&error));
48220598
LP		 2552 r = -EIO;
2553 goto finish;
2554 }
2555
2556 if (!dbus_message_iter_init(reply, &iter) ||
2557 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2558 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2559 log_error("Failed to parse reply.");
2560 r = -EIO;
2561 goto finish;
2562 }
2563
2564 dbus_message_iter_recurse(&iter, &sub);
2565
61cbdc4b
LP		 2566 if (*new_line)
2567 printf("\n");
2568
2569 *new_line = true;
2570
48220598
LP		 2571 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2572 const char *name;
2573
2574 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2575 log_error("Failed to parse reply.");
2576 r = -EIO;
2577 goto finish;
2578 }
2579
2580 dbus_message_iter_recurse(&sub, &sub2);
0183528f 2581
48220598
LP		 2582 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2583 log_error("Failed to parse reply.");
2584 r = -EIO;
2585 goto finish;
2586 }
2587
2588 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2589 log_error("Failed to parse reply.");
2590 r = -EIO;
2591 goto finish;
2592 }
2593
2594 dbus_message_iter_recurse(&sub2, &sub3);
2595
61cbdc4b
LP		 2596 if (show_properties)
2597 r = print_property(name, &sub3);
2598 else
2599 r = status_property(name, &sub3, &info);
2600
2601 if (r < 0) {
48220598
LP		 2602 log_error("Failed to parse reply.");
2603 r = -EIO;
2604 goto finish;
2605 }
2606
2607 dbus_message_iter_next(&sub);
2608 }
2609
f1e36d67
LP		 2610 r = 0;
2611
22f4096c
LP		 2612 if (!show_properties)
2613 print_status_info(&info);
f1e36d67 2614
22f4096c 2615 if (!streq_ptr(info.active_state, "active") &&
be8088a2
LP		 2616 !streq_ptr(info.active_state, "reloading") &&
2617 streq(verb, "status"))
22f4096c
LP		 2618 /* According to LSB: "program not running" */
2619 r = 3;
61cbdc4b 2620
582a507f
LP		 2621 while ((p = info.exec)) {
2622 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2623 exec_status_info_free(p);
2624 }
2625
48220598
LP		 2626finish:
2627 if (m)
2628 dbus_message_unref(m);
2629
2630 if (reply)
2631 dbus_message_unref(reply);
2632
2633 dbus_error_free(&error);
2634
2635 return r;
2636}
2637
2638static int show(DBusConnection *bus, char **args, unsigned n) {
2639 DBusMessage *m = NULL, *reply = NULL;
22f4096c 2640 int r, ret = 0;
48220598
LP		 2641 DBusError error;
2642 unsigned i;
61cbdc4b 2643 bool show_properties, new_line = false;
48220598
LP		 2644
2645 assert(bus);
2646 assert(args);
2647
2648 dbus_error_init(&error);
2649
61cbdc4b
LP		 2650 show_properties = !streq(args[0], "status");
2651
ec14911e
LP		 2652 if (show_properties)
2653 pager_open();
2654
61cbdc4b 2655 if (show_properties && n <= 1) {
48220598
LP		 2656 /* If not argument is specified inspect the manager
2657 * itself */
2658
be8088a2 2659 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
48220598
LP		 2660 goto finish;
2661 }
2662
2663 for (i = 1; i < n; i++) {
2664 const char *path = NULL;
2665 uint32_t id;
2666
598b557b
LP		 2667 if (safe_atou32(args[i], &id) < 0) {
2668
2669 /* Interpret as unit name */
48220598
LP		 2670
2671 if (!(m = dbus_message_new_method_call(
2672 "org.freedesktop.systemd1",
2673 "/org/freedesktop/systemd1",
2674 "org.freedesktop.systemd1.Manager",
e87d1818 2675 "LoadUnit"))) {
48220598 2676 log_error("Could not allocate message.");
22f4096c 2677 ret = -ENOMEM;
48220598
LP		 2678 goto finish;
2679 }
2680
2681 if (!dbus_message_append_args(m,
2682 DBUS_TYPE_STRING, &args[i],
2683 DBUS_TYPE_INVALID)) {
2684 log_error("Could not append arguments to message.");
22f4096c 2685 ret = -ENOMEM;
48220598
LP		 2686 goto finish;
2687 }
2688
ed2d7a44
LP		 2689 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2690
2691 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
4cf5d675 2692 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2693 ret = -EIO;
ed2d7a44
LP		 2694 goto finish;
2695 }
2696
2697 dbus_error_free(&error);
2698
2699 dbus_message_unref(m);
2700 if (!(m = dbus_message_new_method_call(
2701 "org.freedesktop.systemd1",
2702 "/org/freedesktop/systemd1",
2703 "org.freedesktop.systemd1.Manager",
2704 "GetUnit"))) {
2705 log_error("Could not allocate message.");
22f4096c 2706 ret = -ENOMEM;
ed2d7a44
LP		 2707 goto finish;
2708 }
2709
2710 if (!dbus_message_append_args(m,
2711 DBUS_TYPE_STRING, &args[i],
2712 DBUS_TYPE_INVALID)) {
2713 log_error("Could not append arguments to message.");
22f4096c 2714 ret = -ENOMEM;
ed2d7a44
LP		 2715 goto finish;
2716 }
2717
2718 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2719 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c
LP		 2720
2721 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2722 ret = 4; /* According to LSB: "program or service status is unknown" */
2723 else
2724 ret = -EIO;
ed2d7a44
LP		 2725 goto finish;
2726 }
2727 }
2728
598b557b
LP		 2729 } else if (show_properties) {
2730
2731 /* Interpret as job id */
48220598
LP		 2732
2733 if (!(m = dbus_message_new_method_call(
2734 "org.freedesktop.systemd1",
2735 "/org/freedesktop/systemd1",
2736 "org.freedesktop.systemd1.Manager",
2737 "GetJob"))) {
2738 log_error("Could not allocate message.");
22f4096c 2739 ret = -ENOMEM;
48220598
LP		 2740 goto finish;
2741 }
2742
2743 if (!dbus_message_append_args(m,
2744 DBUS_TYPE_UINT32, &id,
2745 DBUS_TYPE_INVALID)) {
2746 log_error("Could not append arguments to message.");
22f4096c 2747 ret = -ENOMEM;
48220598
LP		 2748 goto finish;
2749 }
48220598 2750
598b557b 2751 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2752 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2753 ret = -EIO;
598b557b
LP		 2754 goto finish;
2755 }
2756 } else {
2757
2758 /* Interpret as PID */
2759
2760 if (!(m = dbus_message_new_method_call(
2761 "org.freedesktop.systemd1",
2762 "/org/freedesktop/systemd1",
2763 "org.freedesktop.systemd1.Manager",
2764 "GetUnitByPID"))) {
2765 log_error("Could not allocate message.");
22f4096c 2766 ret = -ENOMEM;
598b557b
LP		 2767 goto finish;
2768 }
2769
2770 if (!dbus_message_append_args(m,
2771 DBUS_TYPE_UINT32, &id,
2772 DBUS_TYPE_INVALID)) {
2773 log_error("Could not append arguments to message.");
22f4096c 2774 ret = -ENOMEM;
598b557b
LP		 2775 goto finish;
2776 }
2777
ed2d7a44 2778 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 2779 log_error("Failed to issue method call: %s", bus_error_message(&error));
22f4096c 2780 ret = -EIO;
ed2d7a44
LP		 2781 goto finish;
2782 }
48220598
LP		 2783 }
2784
2785 if (!dbus_message_get_args(reply, &error,
2786 DBUS_TYPE_OBJECT_PATH, &path,
2787 DBUS_TYPE_INVALID)) {
4cf5d675 2788 log_error("Failed to parse reply: %s", bus_error_message(&error));
22f4096c 2789 ret = -EIO;
48220598
LP		 2790 goto finish;
2791 }
2792
be8088a2 2793 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
22f4096c 2794 ret = r;
48220598
LP		 2795
2796 dbus_message_unref(m);
2797 dbus_message_unref(reply);
2798 m = reply = NULL;
2799 }
2800
48220598
LP		 2801finish:
2802 if (m)
2803 dbus_message_unref(m);
2804
2805 if (reply)
2806 dbus_message_unref(reply);
2807
2808 dbus_error_free(&error);
2809
22f4096c 2810 return ret;
0183528f
LP		 2811}
2812
7e4249b9
LP		 2813static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2814 DBusError error;
2815 DBusMessage *m = NULL, *reply = NULL;
2816
2817 assert(connection);
2818 assert(message);
2819
2820 dbus_error_init(&error);
2821
54165a39
LP		 2822 log_debug("Got D-Bus request: %s.%s() on %s",
2823 dbus_message_get_interface(message),
2824 dbus_message_get_member(message),
2825 dbus_message_get_path(message));
7e4249b9
LP		 2826
2827 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2828 log_error("Warning! D-Bus connection terminated.");
2829 dbus_connection_close(connection);
2830
2831 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2832 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2833 const char *id, *path;
2834
2835 if (!dbus_message_get_args(message, &error,
2836 DBUS_TYPE_STRING, &id,
2837 DBUS_TYPE_OBJECT_PATH, &path,
2838 DBUS_TYPE_INVALID))
4cf5d675 2839 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9
LP		 2840 else if (streq(dbus_message_get_member(message), "UnitNew"))
2841 printf("Unit %s added.\n", id);
2842 else
2843 printf("Unit %s removed.\n", id);
2844
017803e2
LP		 2845 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew")) {
2846 uint32_t id;
2847 const char *path;
2848
2849 if (!dbus_message_get_args(message, &error,
2850 DBUS_TYPE_UINT32, &id,
2851 DBUS_TYPE_OBJECT_PATH, &path,
2852 DBUS_TYPE_INVALID))
2853 log_error("Failed to parse message: %s", bus_error_message(&error));
2854 else
2855 printf("Job %u added.\n", id);
2856
2857
2858 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
7e4249b9 2859 uint32_t id;
5d44db4a 2860 const char *path, *result;
7e4249b9
LP		 2861
2862 if (!dbus_message_get_args(message, &error,
2863 DBUS_TYPE_UINT32, &id,
2864 DBUS_TYPE_OBJECT_PATH, &path,
5d44db4a 2865 DBUS_TYPE_STRING, &result,
7e4249b9 2866 DBUS_TYPE_INVALID))
4cf5d675 2867 log_error("Failed to parse message: %s", bus_error_message(&error));
7e4249b9 2868 else
017803e2 2869 printf("Job %u removed (result=%s).\n", id, result);
7e4249b9
LP		 2870
2871
c4e2ceae 2872 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
7e4249b9
LP		 2873
2874 const char *path, *interface, *property = "Id";
2875 DBusMessageIter iter, sub;
2876
2877 path = dbus_message_get_path(message);
c4e2ceae
LP		 2878
2879 if (!dbus_message_get_args(message, &error,
2880 DBUS_TYPE_STRING, &interface,
2881 DBUS_TYPE_INVALID)) {
4cf5d675 2882 log_error("Failed to parse message: %s", bus_error_message(&error));
c4e2ceae
LP		 2883 goto finish;
2884 }
2885
2886 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2887 !streq(interface, "org.freedesktop.systemd1.Unit"))
2888 goto finish;
7e4249b9
LP		 2889
2890 if (!(m = dbus_message_new_method_call(
2891 "org.freedesktop.systemd1",
2892 path,
2893 "org.freedesktop.DBus.Properties",
2894 "Get"))) {
2895 log_error("Could not allocate message.");
2896 goto oom;
2897 }
2898
2899 if (!dbus_message_append_args(m,
2900 DBUS_TYPE_STRING, &interface,
2901 DBUS_TYPE_STRING, &property,
2902 DBUS_TYPE_INVALID)) {
2903 log_error("Could not append arguments to message.");
2904 goto finish;
2905 }
2906
2907 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
4cf5d675 2908 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 2909 goto finish;
2910 }
2911
2912 if (!dbus_message_iter_init(reply, &iter) ||
2913 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2914 log_error("Failed to parse reply.");
2915 goto finish;
2916 }
2917
2918 dbus_message_iter_recurse(&iter, &sub);
2919
2920 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2921 const char *id;
2922
2923 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2924 log_error("Failed to parse reply.");
2925 goto finish;
2926 }
2927
2928 dbus_message_iter_get_basic(&sub, &id);
2929 printf("Unit %s changed.\n", id);
2930 } else {
2931 uint32_t id;
2932
2933 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2934 log_error("Failed to parse reply.");
2935 goto finish;
2936 }
2937
2938 dbus_message_iter_get_basic(&sub, &id);
2939 printf("Job %u changed.\n", id);
2940 }
2941 }
2942
2943finish:
2944 if (m)
2945 dbus_message_unref(m);
2946
2947 if (reply)
2948 dbus_message_unref(reply);
2949
2950 dbus_error_free(&error);
2951 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2952
2953oom:
2954 if (m)
2955 dbus_message_unref(m);
2956
2957 if (reply)
2958 dbus_message_unref(reply);
2959
2960 dbus_error_free(&error);
2961 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2962}
2963
2964static int monitor(DBusConnection *bus, char **args, unsigned n) {
2965 DBusMessage *m = NULL, *reply = NULL;
2966 DBusError error;
2967 int r;
2968
2969 dbus_error_init(&error);
2970
f4579ce7
LP		 2971 if (!private_bus) {
2972 dbus_bus_add_match(bus,
2973 "type='signal',"
2974 "sender='org.freedesktop.systemd1',"
2975 "interface='org.freedesktop.systemd1.Manager',"
2976 "path='/org/freedesktop/systemd1'",
2977 &error);
7e4249b9 2978
f4579ce7 2979 if (dbus_error_is_set(&error)) {
4cf5d675 2980 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2981 r = -EIO;
2982 goto finish;
2983 }
7e4249b9 2984
f4579ce7
LP		 2985 dbus_bus_add_match(bus,
2986 "type='signal',"
2987 "sender='org.freedesktop.systemd1',"
c4e2ceae
LP		 2988 "interface='org.freedesktop.DBus.Properties',"
2989 "member='PropertiesChanged'",
f4579ce7 2990 &error);
7e4249b9 2991
f4579ce7 2992 if (dbus_error_is_set(&error)) {
4cf5d675 2993 log_error("Failed to add match: %s", bus_error_message(&error));
f4579ce7
LP		 2994 r = -EIO;
2995 goto finish;
2996 }
7e4249b9
LP		 2997 }
2998
2999 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
3000 log_error("Failed to add filter.");
3001 r = -ENOMEM;
3002 goto finish;
3003 }
3004
3005 if (!(m = dbus_message_new_method_call(
3006 "org.freedesktop.systemd1",
3007 "/org/freedesktop/systemd1",
3008 "org.freedesktop.systemd1.Manager",
3009 "Subscribe"))) {
3010 log_error("Could not allocate message.");
3011 r = -ENOMEM;
3012 goto finish;
3013 }
3014
3015 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3016 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3017 r = -EIO;
3018 goto finish;
3019 }
3020
3021 while (dbus_connection_read_write_dispatch(bus, -1))
3022 ;
3023
3024 r = 0;
3025
3026finish:
3027
3028 /* This is slightly dirty, since we don't undo the filter or the matches. */
3029
3030 if (m)
3031 dbus_message_unref(m);
3032
3033 if (reply)
3034 dbus_message_unref(reply);
3035
3036 dbus_error_free(&error);
3037
3038 return r;
3039}
3040
3041static int dump(DBusConnection *bus, char **args, unsigned n) {
3042 DBusMessage *m = NULL, *reply = NULL;
3043 DBusError error;
3044 int r;
3045 const char *text;
3046
3047 dbus_error_init(&error);
3048
ec14911e
LP		 3049 pager_open();
3050
7e4249b9
LP		 3051 if (!(m = dbus_message_new_method_call(
3052 "org.freedesktop.systemd1",
3053 "/org/freedesktop/systemd1",
3054 "org.freedesktop.systemd1.Manager",
3055 "Dump"))) {
3056 log_error("Could not allocate message.");
3057 return -ENOMEM;
3058 }
3059
3060 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3061 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3062 r = -EIO;
3063 goto finish;
3064 }
3065
3066 if (!dbus_message_get_args(reply, &error,
3067 DBUS_TYPE_STRING, &text,
3068 DBUS_TYPE_INVALID)) {
4cf5d675 3069 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 3070 r = -EIO;
3071 goto finish;
3072 }
3073
3074 fputs(text, stdout);
3075
3076 r = 0;
3077
3078finish:
3079 if (m)
3080 dbus_message_unref(m);
3081
3082 if (reply)
3083 dbus_message_unref(reply);
3084
3085 dbus_error_free(&error);
3086
3087 return r;
3088}
3089
3090static int snapshot(DBusConnection *bus, char **args, unsigned n) {
3091 DBusMessage *m = NULL, *reply = NULL;
3092 DBusError error;
3093 int r;
3094 const char *name = "", *path, *id;
3095 dbus_bool_t cleanup = FALSE;
3096 DBusMessageIter iter, sub;
3097 const char
3098 *interface = "org.freedesktop.systemd1.Unit",
3099 *property = "Id";
3100
3101 dbus_error_init(&error);
3102
3103 if (!(m = dbus_message_new_method_call(
3104 "org.freedesktop.systemd1",
3105 "/org/freedesktop/systemd1",
3106 "org.freedesktop.systemd1.Manager",
3107 "CreateSnapshot"))) {
3108 log_error("Could not allocate message.");
3109 return -ENOMEM;
3110 }
3111
3112 if (n > 1)
3113 name = args[1];
3114
3115 if (!dbus_message_append_args(m,
3116 DBUS_TYPE_STRING, &name,
3117 DBUS_TYPE_BOOLEAN, &cleanup,
3118 DBUS_TYPE_INVALID)) {
3119 log_error("Could not append arguments to message.");
3120 r = -ENOMEM;
3121 goto finish;
3122 }
3123
3124 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3125 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3126 r = -EIO;
3127 goto finish;
3128 }
3129
3130 if (!dbus_message_get_args(reply, &error,
3131 DBUS_TYPE_OBJECT_PATH, &path,
3132 DBUS_TYPE_INVALID)) {
4cf5d675 3133 log_error("Failed to parse reply: %s", bus_error_message(&error));
7e4249b9
LP		 3134 r = -EIO;
3135 goto finish;
3136 }
3137
3138 dbus_message_unref(m);
3139 if (!(m = dbus_message_new_method_call(
3140 "org.freedesktop.systemd1",
3141 path,
3142 "org.freedesktop.DBus.Properties",
3143 "Get"))) {
3144 log_error("Could not allocate message.");
3145 return -ENOMEM;
3146 }
3147
3148 if (!dbus_message_append_args(m,
3149 DBUS_TYPE_STRING, &interface,
3150 DBUS_TYPE_STRING, &property,
3151 DBUS_TYPE_INVALID)) {
3152 log_error("Could not append arguments to message.");
3153 r = -ENOMEM;
3154 goto finish;
3155 }
3156
3157 dbus_message_unref(reply);
3158 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3159 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3160 r = -EIO;
3161 goto finish;
3162 }
3163
3164 if (!dbus_message_iter_init(reply, &iter) ||
3165 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3166 log_error("Failed to parse reply.");
3167 r = -EIO;
3168 goto finish;
3169 }
3170
3171 dbus_message_iter_recurse(&iter, &sub);
3172
3173 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3174 log_error("Failed to parse reply.");
3175 r = -EIO;
3176 goto finish;
3177 }
3178
3179 dbus_message_iter_get_basic(&sub, &id);
0183528f
LP		 3180
3181 if (!arg_quiet)
3182 puts(id);
7e4249b9
LP		 3183 r = 0;
3184
3185finish:
3186 if (m)
3187 dbus_message_unref(m);
3188
3189 if (reply)
3190 dbus_message_unref(reply);
3191
3192 dbus_error_free(&error);
3193
3194 return r;
3195}
3196
6759e7a7
LP		 3197static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
3198 DBusMessage *m = NULL, *reply = NULL;
3199 int r;
3200 DBusError error;
3201 unsigned i;
3202
3203 assert(bus);
3204 assert(args);
3205
3206 dbus_error_init(&error);
3207
3208 for (i = 1; i < n; i++) {
3209 const char *path = NULL;
3210
3211 if (!(m = dbus_message_new_method_call(
3212 "org.freedesktop.systemd1",
3213 "/org/freedesktop/systemd1",
3214 "org.freedesktop.systemd1.Manager",
3215 "GetUnit"))) {
3216 log_error("Could not allocate message.");
3217 r = -ENOMEM;
3218 goto finish;
3219 }
3220
3221 if (!dbus_message_append_args(m,
3222 DBUS_TYPE_STRING, &args[i],
3223 DBUS_TYPE_INVALID)) {
3224 log_error("Could not append arguments to message.");
3225 r = -ENOMEM;
3226 goto finish;
3227 }
3228
3229 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3230 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3231 r = -EIO;
3232 goto finish;
3233 }
3234
3235 if (!dbus_message_get_args(reply, &error,
3236 DBUS_TYPE_OBJECT_PATH, &path,
3237 DBUS_TYPE_INVALID)) {
4cf5d675 3238 log_error("Failed to parse reply: %s", bus_error_message(&error));
6759e7a7
LP		 3239 r = -EIO;
3240 goto finish;
3241 }
3242
3243 dbus_message_unref(m);
3244 if (!(m = dbus_message_new_method_call(
3245 "org.freedesktop.systemd1",
3246 path,
3247 "org.freedesktop.systemd1.Snapshot",
3248 "Remove"))) {
3249 log_error("Could not allocate message.");
3250 r = -ENOMEM;
3251 goto finish;
3252 }
3253
3254 dbus_message_unref(reply);
3255 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3256 log_error("Failed to issue method call: %s", bus_error_message(&error));
6759e7a7
LP		 3257 r = -EIO;
3258 goto finish;
3259 }
3260
3261 dbus_message_unref(m);
3262 dbus_message_unref(reply);
3263 m = reply = NULL;
3264 }
3265
3266 r = 0;
3267
3268finish:
3269 if (m)
3270 dbus_message_unref(m);
3271
3272 if (reply)
3273 dbus_message_unref(reply);
3274
3275 dbus_error_free(&error);
3276
3277 return r;
3278}
3279
ee5762e3 3280static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
7e4249b9
LP		 3281 DBusMessage *m = NULL, *reply = NULL;
3282 DBusError error;
3283 int r;
3284 const char *method;
3285
3286 dbus_error_init(&error);
3287
e4b61340
LP		 3288 if (arg_action == ACTION_RELOAD)
3289 method = "Reload";
3290 else if (arg_action == ACTION_REEXEC)
3291 method = "Reexecute";
3292 else {
3293 assert(arg_action == ACTION_SYSTEMCTL);
3294
3295 method =
20b09ca7
LP		 3296 streq(args[0], "clear-jobs") ||
3297 streq(args[0], "cancel") ? "ClearJobs" :
3298 streq(args[0], "daemon-reexec") ? "Reexecute" :
3299 streq(args[0], "reset-failed") ? "ResetFailed" :
3300 streq(args[0], "halt") ? "Halt" :
3301 streq(args[0], "poweroff") ? "PowerOff" :
3302 streq(args[0], "reboot") ? "Reboot" :
3303 streq(args[0], "kexec") ? "KExec" :
3304 streq(args[0], "exit") ? "Exit" :
3305 /* "daemon-reload" */ "Reload";
e4b61340 3306 }
7e4249b9
LP		 3307
3308 if (!(m = dbus_message_new_method_call(
3309 "org.freedesktop.systemd1",
3310 "/org/freedesktop/systemd1",
3311 "org.freedesktop.systemd1.Manager",
3312 method))) {
3313 log_error("Could not allocate message.");
3314 return -ENOMEM;
3315 }
3316
3317 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
e4b61340
LP		 3318
3319 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3320 /* There's always a fallback possible for
3321 * legacy actions. */
aabd9b11 3322 r = -EADDRNOTAVAIL;
e4b61340
LP		 3323 goto finish;
3324 }
3325
4cf5d675 3326 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3327 r = -EIO;
3328 goto finish;
3329 }
3330
aabd9b11 3331 r = 0;
7e4249b9
LP		 3332
3333finish:
3334 if (m)
3335 dbus_message_unref(m);
3336
3337 if (reply)
3338 dbus_message_unref(reply);
3339
3340 dbus_error_free(&error);
3341
3342 return r;
3343}
3344
fdf20a31 3345static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
5632e374
LP		 3346 DBusMessage *m = NULL, *reply = NULL;
3347 unsigned i;
3348 int r;
3349 DBusError error;
3350
3351 assert(bus);
3352 dbus_error_init(&error);
3353
3354 if (n <= 1)
ee5762e3 3355 return daemon_reload(bus, args, n);
5632e374
LP		 3356
3357 for (i = 1; i < n; i++) {
3358
3359 if (!(m = dbus_message_new_method_call(
3360 "org.freedesktop.systemd1",
3361 "/org/freedesktop/systemd1",
3362 "org.freedesktop.systemd1.Manager",
fdf20a31 3363 "ResetFailedUnit"))) {
5632e374
LP		 3364 log_error("Could not allocate message.");
3365 r = -ENOMEM;
3366 goto finish;
3367 }
3368
3369 if (!dbus_message_append_args(m,
3370 DBUS_TYPE_STRING, args + i,
3371 DBUS_TYPE_INVALID)) {
3372 log_error("Could not append arguments to message.");
3373 r = -ENOMEM;
3374 goto finish;
3375 }
3376
3377 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3378 log_error("Failed to issue method call: %s", bus_error_message(&error));
5632e374
LP		 3379 r = -EIO;
3380 goto finish;
3381 }
3382
3383 dbus_message_unref(m);
3384 dbus_message_unref(reply);
3385 m = reply = NULL;
3386 }
3387
3388 r = 0;
3389
3390finish:
3391 if (m)
3392 dbus_message_unref(m);
3393
3394 if (reply)
3395 dbus_message_unref(reply);
3396
3397 dbus_error_free(&error);
3398
3399 return r;
3400}
3401
7e4249b9
LP		 3402static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3403 DBusMessage *m = NULL, *reply = NULL;
3404 DBusError error;
3405 DBusMessageIter iter, sub, sub2;
3406 int r;
3407 const char
3408 *interface = "org.freedesktop.systemd1.Manager",
3409 *property = "Environment";
3410
3411 dbus_error_init(&error);
3412
ec14911e
LP		 3413 pager_open();
3414
7e4249b9
LP		 3415 if (!(m = dbus_message_new_method_call(
3416 "org.freedesktop.systemd1",
3417 "/org/freedesktop/systemd1",
3418 "org.freedesktop.DBus.Properties",
3419 "Get"))) {
3420 log_error("Could not allocate message.");
3421 return -ENOMEM;
3422 }
3423
3424 if (!dbus_message_append_args(m,
3425 DBUS_TYPE_STRING, &interface,
3426 DBUS_TYPE_STRING, &property,
3427 DBUS_TYPE_INVALID)) {
3428 log_error("Could not append arguments to message.");
3429 r = -ENOMEM;
3430 goto finish;
3431 }
3432
3433 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3434 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3435 r = -EIO;
3436 goto finish;
3437 }
3438
3439 if (!dbus_message_iter_init(reply, &iter) ||
3440 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3441 log_error("Failed to parse reply.");
3442 r = -EIO;
3443 goto finish;
3444 }
3445
3446 dbus_message_iter_recurse(&iter, &sub);
3447
3448 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3449 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3450 log_error("Failed to parse reply.");
3451 r = -EIO;
3452 goto finish;
3453 }
3454
3455 dbus_message_iter_recurse(&sub, &sub2);
3456
3457 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3458 const char *text;
3459
3460 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3461 log_error("Failed to parse reply.");
3462 r = -EIO;
3463 goto finish;
3464 }
3465
3466 dbus_message_iter_get_basic(&sub2, &text);
3467 printf("%s\n", text);
3468
3469 dbus_message_iter_next(&sub2);
3470 }
3471
3472 r = 0;
3473
3474finish:
3475 if (m)
3476 dbus_message_unref(m);
3477
3478 if (reply)
3479 dbus_message_unref(reply);
3480
3481 dbus_error_free(&error);
3482
3483 return r;
3484}
3485
3486static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3487 DBusMessage *m = NULL, *reply = NULL;
3488 DBusError error;
3489 int r;
3490 const char *method;
3491 DBusMessageIter iter, sub;
3492 unsigned i;
3493
3494 dbus_error_init(&error);
3495
3496 method = streq(args[0], "set-environment")
3497 ? "SetEnvironment"
3498 : "UnsetEnvironment";
3499
3500 if (!(m = dbus_message_new_method_call(
3501 "org.freedesktop.systemd1",
3502 "/org/freedesktop/systemd1",
3503 "org.freedesktop.systemd1.Manager",
3504 method))) {
3505
3506 log_error("Could not allocate message.");
3507 return -ENOMEM;
3508 }
3509
3510 dbus_message_iter_init_append(m, &iter);
3511
3512 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3513 log_error("Could not append arguments to message.");
3514 r = -ENOMEM;
3515 goto finish;
3516 }
3517
3518 for (i = 1; i < n; i++)
3519 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3520 log_error("Could not append arguments to message.");
3521 r = -ENOMEM;
3522 goto finish;
3523 }
3524
3525 if (!dbus_message_iter_close_container(&iter, &sub)) {
3526 log_error("Could not append arguments to message.");
3527 r = -ENOMEM;
3528 goto finish;
3529 }
3530
3531 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4cf5d675 3532 log_error("Failed to issue method call: %s", bus_error_message(&error));
7e4249b9
LP		 3533 r = -EIO;
3534 goto finish;
3535 }
3536
3537 r = 0;
3538
3539finish:
3540 if (m)
3541 dbus_message_unref(m);
3542
3543 if (reply)
3544 dbus_message_unref(reply);
3545
3546 dbus_error_free(&error);
3547
3548 return r;
3549}
3550
ee5762e3
LP		 3551typedef struct {
3552 char *name;
3553 char *path;
3554
3555 char **aliases;
3556 char **wanted_by;
3557} InstallInfo;
3558
3559static Hashmap *will_install = NULL, *have_installed = NULL;
3560static Set *remove_symlinks_to = NULL;
560d8f23 3561static unsigned n_symlinks = 0;
ee5762e3
LP		 3562
3563static void install_info_free(InstallInfo *i) {
3564 assert(i);
3565
3566 free(i->name);
3567 free(i->path);
3568 strv_free(i->aliases);
3569 strv_free(i->wanted_by);
3570 free(i);
3571}
3572
3573static void install_info_hashmap_free(Hashmap *m) {
3574 InstallInfo *i;
3575
3576 while ((i = hashmap_steal_first(m)))
3577 install_info_free(i);
3578
3579 hashmap_free(m);
3580}
3581
ee5762e3
LP		 3582static int install_info_add(const char *name) {
3583 InstallInfo *i;
3584 int r;
3585
3586 assert(will_install);
3587
b9c0d441 3588 if (!unit_name_is_valid_no_type(name, true)) {
71fad675 3589 log_warning("Unit name %s is not a valid unit name.", name);
ee5762e3 3590 return -EINVAL;
71fad675 3591 }
ee5762e3
LP		 3592
3593 if (hashmap_get(have_installed, name) ||
3594 hashmap_get(will_install, name))
3595 return 0;
3596
3597 if (!(i = new0(InstallInfo, 1))) {
3598 r = -ENOMEM;
3599 goto fail;
3600 }
3601
3602 if (!(i->name = strdup(name))) {
3603 r = -ENOMEM;
3604 goto fail;
3605 }
3606
3607 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3608 goto fail;
3609
3610 return 0;
3611
3612fail:
3613 if (i)
3614 install_info_free(i);
3615
3616 return r;
3617}
3618
3619static int config_parse_also(
3620 const char *filename,
3621 unsigned line,
3622 const char *section,
3623 const char *lvalue,
3731f1ea 3624 int ltype,
ee5762e3
LP		 3625 const char *rvalue,
3626 void *data,
3627 void *userdata) {
3628
3629 char *w;
3630 size_t l;
3631 char *state;
3632
3633 assert(filename);
3634 assert(lvalue);
3635 assert(rvalue);
3636
3637 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3638 char *n;
3639 int r;
3640
3641 if (!(n = strndup(w, l)))
3642 return -ENOMEM;
3643
71fad675
LP		 3644 if ((r = install_info_add(n)) < 0) {
3645 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3646 free(n);
ee5762e3 3647 return r;
71fad675
LP		 3648 }
3649
3650 free(n);
ee5762e3
LP		 3651 }
3652
3653 return 0;
3654}
3655
3656static int mark_symlink_for_removal(const char *p) {
3657 char *n;
3658 int r;
3659
3660 assert(p);
3661 assert(path_is_absolute(p));
3662
3663 if (!remove_symlinks_to)
3664 return 0;
3665
3666 if (!(n = strdup(p)))
3667 return -ENOMEM;
3668
3669 path_kill_slashes(n);
3670
3671 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3672 free(n);
3673 return r == -EEXIST ? 0 : r;
3674 }
3675
3676 return 0;
3677}
3678
3679static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3680 int r = 0;
3681 DIR *d;
3682 struct dirent *de;
3683
3684 assert(fd >= 0);
3685 assert(root);
3686 assert(deleted);
3687
3688 if (!(d = fdopendir(fd))) {
3689 close_nointr_nofail(fd);
3690 return -errno;
3691 }
3692
3693 rewinddir(d);
3694
3695 while ((de = readdir(d))) {
3696 bool is_dir = false, is_link = false;
3697
3698 if (ignore_file(de->d_name))
3699 continue;
3700
3701 if (de->d_type == DT_LNK)
3702 is_link = true;
3703 else if (de->d_type == DT_DIR)
3704 is_dir = true;
3705 else if (de->d_type == DT_UNKNOWN) {
3706 struct stat st;
3707
3708 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3709 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3710
3711 if (r == 0)
3712 r = -errno;
3713 continue;
3714 }
3715
3716 is_link = S_ISLNK(st.st_mode);
3717 is_dir = S_ISDIR(st.st_mode);
3718 } else
3719 continue;
3720
3721 if (is_dir) {
3722 int nfd, q;
3723 char *p;
3724
3725 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3726 log_error("Failed to open %s/%s: %m", root, de->d_name);
3727
3728 if (r == 0)
3729 r = -errno;
3730 continue;
3731 }
3732
3733 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3734 log_error("Failed to allocate directory string.");
3735 close_nointr_nofail(nfd);
3736 r = -ENOMEM;
3737 break;
3738 }
3739
3740 /* This will close nfd, regardless whether it succeeds or not */
3741 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3742 free(p);
3743
3744 if (r == 0)
e364ad06 3745 r = q;
ee5762e3
LP		 3746
3747 } else if (is_link) {
3748 char *p, *dest, *c;
3749 int q;
3750
3751 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3752 log_error("Failed to allocate symlink string.");
3753 r = -ENOMEM;
3754 break;
3755 }
3756
3757 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3758 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3759 free(p);
3760
3761 if (r == 0)
3762 r = q;
3763 continue;
3764 }
3765
3766 if ((c = canonicalize_file_name(dest))) {
3767 /* This might fail if the destination
3768 * is already removed */
3769
3770 free(dest);
3771 dest = c;
3772 }
3773
3774 path_kill_slashes(dest);
3775 if (set_get(remove_symlinks_to, dest)) {
3776
3777 if (!arg_quiet)
3778 log_info("rm '%s'", p);
3779
3780 if (unlink(p) < 0) {
3781 log_error("Cannot unlink symlink %s: %m", p);
3782
3783 if (r == 0)
3784 r = -errno;
3785 } else {
3786 rmdir_parents(p, config_path);
3787 path_kill_slashes(p);
3788
3789 if (!set_get(remove_symlinks_to, p)) {
3790
3791 if ((r = mark_symlink_for_removal(p)) < 0) {
3792 if (r == 0)
3793 r = q;
3794 } else
3795 *deleted = true;
3796 }
3797 }
3798 }
3799
3800 free(p);
3801 free(dest);
3802 }
3803 }
3804
3805 closedir(d);
3806
3807 return r;
3808}
3809
3810static int remove_marked_symlinks(const char *config_path) {
3811 int fd, r = 0;
3812 bool deleted;
3813
3814 assert(config_path);
3815
3816 if (set_size(remove_symlinks_to) <= 0)
3817 return 0;
3818
3819 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3820 return -errno;
3821
3822 do {
3823 int q, cfd;
3824 deleted = false;
3825
3826 if ((cfd = dup(fd)) < 0) {
3827 r = -errno;
3828 break;
3829 }
3830
3831 /* This takes possession of cfd and closes it */
3832 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3833 if (r == 0)
3834 r = q;
3835 }
3836 } while (deleted);
3837
3838 close_nointr_nofail(fd);
3839
3840 return r;
3841}
3842
3843static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3844 int r;
3845
3846 assert(old_path);
3847 assert(new_path);
3848 assert(verb);
3849
3850 if (streq(verb, "enable")) {
3851 char *dest;
3852
3853 mkdir_parents(new_path, 0755);
3854
3855 if (symlink(old_path, new_path) >= 0) {
3856
3857 if (!arg_quiet)
3858 log_info("ln -s '%s' '%s'", old_path, new_path);
3859
3860 return 0;
3861 }
3862
3863 if (errno != EEXIST) {
3864 log_error("Cannot link %s to %s: %m", old_path, new_path);
3865 return -errno;
3866 }
3867
3868 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3869
3870 if (errno == EINVAL) {
3871 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3872 return -EEXIST;
3873 }
3874
3875 log_error("readlink() failed: %s", strerror(-r));
3876 return r;
3877 }
3878
3879 if (streq(dest, old_path)) {
3880 free(dest);
3881 return 0;
3882 }
3883
3884 if (!arg_force) {
3885 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3886 free(dest);
3887 return -EEXIST;
3888 }
3889
3890 free(dest);
3891 unlink(new_path);
3892
3893 if (!arg_quiet)
3894 log_info("ln -s '%s' '%s'", old_path, new_path);
3895
3896 if (symlink(old_path, new_path) >= 0)
3897 return 0;
3898
3899 log_error("Cannot link %s to %s: %m", old_path, new_path);
3900 return -errno;
3901
3902 } else if (streq(verb, "disable")) {
3903 char *dest;
3904
3905 if ((r = mark_symlink_for_removal(old_path)) < 0)
3906 return r;
3907
3908 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3909 if (errno == ENOENT)
3910 return 0;
3911
3912 if (errno == EINVAL) {
3913 log_warning("File %s not a symlink, ignoring.", old_path);
3914 return 0;
3915 }
3916
3917 log_error("readlink() failed: %s", strerror(-r));
3918 return r;
3919 }
3920
3921 if (!streq(dest, old_path)) {
3922 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3923 free(dest);
3924 return 0;
3925 }
3926
3927 free(dest);
3928
3929 if ((r = mark_symlink_for_removal(new_path)) < 0)
3930 return r;
3931
3932 if (!arg_quiet)
3933 log_info("rm '%s'", new_path);
3934
3935 if (unlink(new_path) >= 0)
3936 return 0;
3937
3938 log_error("Cannot unlink %s: %m", new_path);
3939 return -errno;
3940
3941 } else if (streq(verb, "is-enabled")) {
3942 char *dest;
3943
3944 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3945
3946 if (errno == ENOENT || errno == EINVAL)
3947 return 0;
3948
3949 log_error("readlink() failed: %s", strerror(-r));
3950 return r;
3951 }
3952
3953 if (streq(dest, old_path)) {
3954 free(dest);
3955 return 1;
3956 }
3957
3958 return 0;
3959 }
3960
3961 assert_not_reached("Unknown action.");
3962}
3963
3964static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3965 char **s;
3966 char *alias_path = NULL;
3967 int r;
3968
3969 assert(verb);
3970 assert(i);
3971 assert(config_path);
3972
3973 STRV_FOREACH(s, i->aliases) {
3974
ee5762e3
LP		 3975 free(alias_path);
3976 if (!(alias_path = path_make_absolute(*s, config_path))) {
3977 log_error("Out of memory");
3978 r = -ENOMEM;
3979 goto finish;
3980 }
3981
3982 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3983 goto finish;
3984
3985 if (streq(verb, "disable"))
3986 rmdir_parents(alias_path, config_path);
3987 }
ee5762e3
LP		 3988 r = 0;
3989
3990finish:
3991 free(alias_path);
3992
3993 return r;
3994}
3995
3996static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3997 char **s;
3998 char *alias_path = NULL;
3999 int r;
4000
4001 assert(verb);
4002 assert(i);
4003 assert(config_path);
4004
4005 STRV_FOREACH(s, i->wanted_by) {
b9c0d441 4006 if (!unit_name_is_valid_no_type(*s, true)) {
ee5762e3
LP		 4007 log_error("Invalid name %s.", *s);
4008 r = -EINVAL;
4009 goto finish;
4010 }
4011
4012 free(alias_path);
4013 alias_path = NULL;
4014
4015 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
4016 log_error("Out of memory");
4017 r = -ENOMEM;
4018 goto finish;
4019 }
4020
4021 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
4022 goto finish;
4023
4024 if (streq(verb, "disable"))
4025 rmdir_parents(alias_path, config_path);
4026 }
4027
4028 r = 0;
4029
4030finish:
4031 free(alias_path);
4032
4033 return r;
4034}
4035
4036static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
4037
4038 const ConfigItem items[] = {
2b583ce6
KS		 4039 { "Alias", config_parse_strv, 0, &i->aliases, "Install" },
4040 { "WantedBy", config_parse_strv, 0, &i->wanted_by, "Install" },
4041 { "Also", config_parse_also, 0, NULL, "Install" },
ee5762e3 4042
2b583ce6 4043 { NULL, NULL, 0, NULL, NULL }
ee5762e3
LP		 4044 };
4045
4046 char **p;
4047 char *filename = NULL;
4048 FILE *f = NULL;
4049 int r;
4050
4051 assert(paths);
4052 assert(i);
4053
4054 STRV_FOREACH(p, paths->unit_path) {
4055 int fd;
4056
4057 if (!(filename = path_make_absolute(i->name, *p))) {
4058 log_error("Out of memory");
4059 return -ENOMEM;
4060 }
4061
4062 /* Ensure that we don't follow symlinks */
4063 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
4064 if ((f = fdopen(fd, "re")))
4065 break;
4066
4067 if (errno == ELOOP) {
4068 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
4069 free(filename);
4070 return -errno;
4071 }
4072
4073 if (errno != ENOENT) {
4074 log_error("Failed to open %s: %m", filename);
4075 free(filename);
4076 return -errno;
4077 }
4078
4079 free(filename);
4080 filename = NULL;
4081 }
4082
4083 if (!f) {
54e4fdef 4084#if (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA)) || defined(TARGET_MEEGO) && defined (HAVE_SYSV_COMPAT)
c8b2e52c
LP		 4085
4086 if (endswith(i->name, ".service")) {
4087 char *sysv;
4088 bool exists;
4089
4090 if (asprintf(&sysv, SYSTEM_SYSVINIT_PATH "/%s", i->name) < 0) {
4091 log_error("Out of memory");
4092 return -ENOMEM;
4093 }
4094
4095 sysv[strlen(sysv) - sizeof(".service") + 1] = 0;
4096 exists = access(sysv, F_OK) >= 0;
4097
4098 if (exists) {
4099 pid_t pid;
4100 siginfo_t status;
4101
4102 const char *argv[] = {
4103 "/sbin/chkconfig",
4104 NULL,
4105 NULL,
4106 NULL
4107 };
4108
4109 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", i->name);
4110
4111 argv[1] = file_name_from_path(sysv);
4112 argv[2] =
4113 streq(verb, "enable") ? "on" :
b74949bc 4114 streq(verb, "disable") ? "off" : "--level=5";
c8b2e52c
LP		 4115
4116 log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2]));
4117
4118 if ((pid = fork()) < 0) {
4119 log_error("Failed to fork: %m");
4120 free(sysv);
4121 return -errno;
4122 } else if (pid == 0) {
4123 execv(argv[0], (char**) argv);
4124 _exit(EXIT_FAILURE);
4125 }
4126
4127 free(sysv);
4128
4129 if ((r = wait_for_terminate(pid, &status)) < 0)
4130 return r;
4131
4132 if (status.si_code == CLD_EXITED) {
63a723f3
LP		 4133
4134 if (streq(verb, "is-enabled"))
4135 return status.si_status == 0 ? 1 : 0;
4136
4137 if (status.si_status == 0)
c8b2e52c
LP		 4138 n_symlinks ++;
4139
4140 return status.si_status == 0 ? 0 : -EINVAL;
63a723f3 4141
c8b2e52c
LP		 4142 } else
4143 return -EPROTO;
4144 }
4145
4146 free(sysv);
4147 }
4148
4149#endif
4150
ee5762e3
LP		 4151 log_error("Couldn't find %s.", i->name);
4152 return -ENOENT;
4153 }
4154
3d3961f2
LP		 4155 /* Consider unit files stored in /lib and /usr always enabled
4156 * if they have no [Install] data. */
4157 if (streq(verb, "is-enabled") &&
4158 strv_isempty(i->aliases) &&
4159 strv_isempty(i->wanted_by) &&
e190aa0b 4160 !path_startswith(filename, "/etc"))
3d3961f2
LP		 4161 return 1;
4162
ee5762e3
LP		 4163 i->path = filename;
4164
4165 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
4166 fclose(f);
4167 return r;
4168 }
4169
560d8f23
LP		 4170 n_symlinks += strv_length(i->aliases);
4171 n_symlinks += strv_length(i->wanted_by);
4172
ee5762e3
LP		 4173 fclose(f);
4174
4175 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
4176 return r;
4177
4178 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
4179 return r;
4180
4181 if ((r = mark_symlink_for_removal(filename)) < 0)
4182 return r;
4183
4184 if ((r = remove_marked_symlinks(config_path)) < 0)
4185 return r;
4186
4187 return 0;
4188}
4189
4190static char *get_config_path(void) {
4191
af2d49f7
LP		 4192 if (arg_user && arg_global)
4193 return strdup(USER_CONFIG_UNIT_PATH);
ee5762e3 4194
af2d49f7 4195 if (arg_user) {
ee5762e3
LP		 4196 char *p;
4197
af2d49f7 4198 if (user_config_home(&p) < 0)
ee5762e3
LP		 4199 return NULL;
4200
4201 return p;
4202 }
4203
4204 return strdup(SYSTEM_CONFIG_UNIT_PATH);
4205}
4206
4207static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
4208 DBusError error;
4209 int r;
4210 LookupPaths paths;
4211 char *config_path = NULL;
4212 unsigned j;
4213 InstallInfo *i;
4214 const char *verb = args[0];
4215
4216 dbus_error_init(&error);
4217
4218 zero(paths);
af2d49f7 4219 if ((r = lookup_paths_init(&paths, arg_user ? MANAGER_USER : MANAGER_SYSTEM)) < 0) {
ee5762e3
LP		 4220 log_error("Failed to determine lookup paths: %s", strerror(-r));
4221 goto finish;
4222 }
4223
4224 if (!(config_path = get_config_path())) {
4225 log_error("Failed to determine config path");
4226 r = -ENOMEM;
4227 goto finish;
4228 }
4229
4230 will_install = hashmap_new(string_hash_func, string_compare_func);
4231 have_installed = hashmap_new(string_hash_func, string_compare_func);
4232
4233 if (!will_install || !have_installed) {
4234 log_error("Failed to allocate unit sets.");
4235 r = -ENOMEM;
4236 goto finish;
4237 }
4238
4239 if (!arg_defaults && streq(verb, "disable"))
4240 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
4241 log_error("Failed to allocate symlink sets.");
4242 r = -ENOMEM;
4243 goto finish;
4244 }
4245
4246 for (j = 1; j < n; j++)
71fad675
LP		 4247 if ((r = install_info_add(args[j])) < 0) {
4248 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
ee5762e3 4249 goto finish;
71fad675 4250 }
ee5762e3 4251
63a723f3
LP		 4252 r = 0;
4253
ee5762e3
LP		 4254 while ((i = hashmap_first(will_install))) {
4255 int q;
4256
4257 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
4258
4259 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
4260
4261 if (q < 0) {
4262 if (r == 0)
4263 r = q;
4264 goto finish;
4265 }
4266
4267 /* In test mode and found something */
4268 r = 1;
4269 break;
4270 }
4271 }
4272
4273 if (streq(verb, "is-enabled"))
4274 r = r > 0 ? 0 : -ENOENT;
560d8f23
LP		 4275 else {
4276 if (n_symlinks <= 0)
4277 log_warning("Unit files contain no applicable installation information. Ignoring.");
4278
4279 if (bus &&
4280 /* Don't try to reload anything if the user asked us to not do this */
4281 !arg_no_reload &&
4282 /* Don't try to reload anything when updating a unit globally */
4283 !arg_global &&
4284 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
af2d49f7 4285 (arg_user || sd_booted() > 0) &&
560d8f23 4286 /* Don't try to reload anything if we are running in a chroot environment */
af2d49f7 4287 (arg_user || running_in_chroot() <= 0) ) {
560d8f23 4288 int q;
ee5762e3 4289
560d8f23
LP		 4290 if ((q = daemon_reload(bus, args, n)) < 0)
4291 r = q;
4292 }
ee5762e3
LP		 4293 }
4294
4295finish:
4296 install_info_hashmap_free(will_install);
4297 install_info_hashmap_free(have_installed);
4298
4299 set_free_free(remove_symlinks_to);
4300
4301 lookup_paths_free(&paths);
4302
4303 free(config_path);
4304
4305 return r;
4306}
4307
e4b61340 4308static int systemctl_help(void) {
7e4249b9 4309
2e33c433 4310 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
5632e374 4311 "Send control commands to or query the systemd manager.\n\n"
8a0867d6
LP		 4312 " -h --help Show this help\n"
4313 " --version Show package version\n"
4314 " -t --type=TYPE List only units of a particular type\n"
4315 " -p --property=NAME Show only properties by this name\n"
4316 " -a --all Show all units/properties, including dead/empty ones\n"
30732560 4317 " --failed Show only failed units\n"
8a0867d6
LP		 4318 " --full Don't ellipsize unit names on output\n"
4319 " --fail When queueing a new job, fail if conflicting jobs are\n"
4320 " pending\n"
e67c3609
LP		 4321 " --ignore-dependencies\n"
4322 " When queueing a new job, ignore all its dependencies\n"
a8f11321
LP		 4323 " --kill-mode=MODE How to send signal\n"
4324 " --kill-who=WHO Who to send signal to\n"
4325 " -s --signal=SIGNAL Which signal to send\n"
4326 " -H --host=[user@]host\n"
4327 " Show information for remote host\n"
4328 " -P --privileged Acquire privileges before execution\n"
8a0867d6
LP		 4329 " -q --quiet Suppress output\n"
4330 " --no-block Do not wait until operation finished\n"
8a0867d6 4331 " --no-wall Don't send wall message before halt/power-off/reboot\n"
8a0867d6
LP		 4332 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4333 " configuration\n"
a8f11321 4334 " --no-pager Do not pipe output into a pager.\n"
501fc174
LP		 4335 " --no-ask-password\n"
4336 " Do not ask for system passwords\n"
a8f11321
LP		 4337 " --order When generating graph for dot, show only order\n"
4338 " --require When generating graph for dot, show only requirement\n"
4339 " --system Connect to system manager\n"
4340 " --user Connect to user service manager\n"
4341 " --global Enable/disable unit files globally\n"
8a0867d6
LP		 4342 " -f --force When enabling unit files, override existing symlinks\n"
4343 " When shutting down, execute action immediately\n"
4344 " --defaults When disabling unit files, remove default symlinks only\n\n"
7e4249b9
LP		 4345 "Commands:\n"
4346 " list-units List units\n"
ee5762e3
LP		 4347 " start [NAME...] Start (activate) one or more units\n"
4348 " stop [NAME...] Stop (deactivate) one or more units\n"
7e4249b9 4349 " reload [NAME...] Reload one or more units\n"
6f28c033
LP		 4350 " restart [NAME...] Start or restart one or more units\n"
4351 " try-restart [NAME...] Restart one or more units if active\n"
4352 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4353 " otherwise start or restart\n"
4354 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4355 " otherwise restart if active\n"
7e4249b9 4356 " isolate [NAME] Start one unit and stop all others\n"
8a0867d6 4357 " kill [NAME...] Send signal to processes of a unit\n"
ee5762e3 4358 " is-active [NAME...] Check whether units are active\n"
75676b72 4359 " status [NAME...|PID...] Show runtime status of one or more units\n"
6f28c033 4360 " show [NAME...|JOB...] Show properties of one or more\n"
ee5762e3 4361 " units/jobs or the manager\n"
fdf20a31
MM		 4362 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4363 " units\n"
ee5762e3
LP		 4364 " enable [NAME...] Enable one or more unit files\n"
4365 " disable [NAME...] Disable one or more unit files\n"
4366 " is-enabled [NAME...] Check whether unit files are enabled\n"
48220598
LP		 4367 " load [NAME...] Load one or more units\n"
4368 " list-jobs List jobs\n"
ee5762e3 4369 " cancel [JOB...] Cancel all, one, or more jobs\n"
7e4249b9
LP		 4370 " monitor Monitor unit/job changes\n"
4371 " dump Dump server status\n"
4445a875 4372 " dot Dump dependency graph for dot(1)\n"
7e4249b9 4373 " snapshot [NAME] Create a snapshot\n"
6759e7a7 4374 " delete [NAME...] Remove one or more snapshots\n"
5ec7ed4e
LP		 4375 " daemon-reload Reload systemd manager configuration\n"
4376 " daemon-reexec Reexecute systemd manager\n"
7e4249b9
LP		 4377 " show-environment Dump environment\n"
4378 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
514f4ef5 4379 " unset-environment [NAME...] Unset one or more environment variables\n"
20b09ca7
LP		 4380 " default Enter system default mode\n"
4381 " rescue Enter system rescue mode\n"
4382 " emergency Enter system emergency mode\n"
514f4ef5 4383 " halt Shut down and halt the system\n"
2e33c433 4384 " poweroff Shut down and power-off the system\n"
514f4ef5 4385 " reboot Shut down and reboot the system\n"
20b09ca7 4386 " kexec Shut down and reboot the system with kexec\n"
af2d49f7 4387 " exit Ask for user instance termination\n",
5b6319dc 4388 program_invocation_short_name);
7e4249b9
LP		 4389
4390 return 0;
4391}
4392
e4b61340
LP		 4393static int halt_help(void) {
4394
2e33c433 4395 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4396 "%s the system.\n\n"
4397 " --help Show this help\n"
4398 " --halt Halt the machine\n"
4399 " -p --poweroff Switch off the machine\n"
4400 " --reboot Reboot the machine\n"
2e33c433
LP		 4401 " -f --force Force immediate halt/power-off/reboot\n"
4402 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
e4b61340 4403 " -d --no-wtmp Don't write wtmp record\n"
2e33c433
LP		 4404 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4405 " --no-wall Don't send wall message before halt/power-off/reboot\n",
e4b61340
LP		 4406 program_invocation_short_name,
4407 arg_action == ACTION_REBOOT ? "Reboot" :
4408 arg_action == ACTION_POWEROFF ? "Power off" :
4409 "Halt");
4410
4411 return 0;
4412}
4413
4414static int shutdown_help(void) {
4415
08e4b1c5 4416 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
e4b61340
LP		 4417 "Shut down the system.\n\n"
4418 " --help Show this help\n"
4419 " -H --halt Halt the machine\n"
4420 " -P --poweroff Power-off the machine\n"
4421 " -r --reboot Reboot the machine\n"
4422 " -h Equivalent to --poweroff, overriden by --halt\n"
2e33c433 4423 " -k Don't halt/power-off/reboot, just send warnings\n"
f6144808 4424 " --no-wall Don't send wall message before halt/power-off/reboot\n"
f6144808 4425 " -c Cancel a pending shutdown\n",
e4b61340
LP		 4426 program_invocation_short_name);
4427
4428 return 0;
4429}
4430
4431static int telinit_help(void) {
4432
2e33c433 4433 printf("%s [OPTIONS...] {COMMAND}\n\n"
514f4ef5
LP		 4434 "Send control commands to the init daemon.\n\n"
4435 " --help Show this help\n"
2e33c433 4436 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
e4b61340
LP		 4437 "Commands:\n"
4438 " 0 Power-off the machine\n"
4439 " 6 Reboot the machine\n"
514f4ef5
LP		 4440 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4441 " 1, s, S Enter rescue mode\n"
4442 " q, Q Reload init daemon configuration\n"
4443 " u, U Reexecute init daemon\n",
e4b61340
LP		 4444 program_invocation_short_name);
4445
4446 return 0;
4447}
4448
4449static int runlevel_help(void) {
4450
2e33c433 4451 printf("%s [OPTIONS...]\n\n"
e4b61340
LP		 4452 "Prints the previous and current runlevel of the init system.\n\n"
4453 " --help Show this help\n",
4454 program_invocation_short_name);
4455
4456 return 0;
4457}
4458
4459static int systemctl_parse_argv(int argc, char *argv[]) {
7e4249b9
LP		 4460
4461 enum {
90d473a1 4462 ARG_FAIL = 0x100,
e67c3609 4463 ARG_IGNORE_DEPENDENCIES,
35df8f27 4464 ARG_VERSION,
af2d49f7 4465 ARG_USER,
7e4249b9 4466 ARG_SYSTEM,
ee5762e3 4467 ARG_GLOBAL,
6e905d93 4468 ARG_NO_BLOCK,
611efaac 4469 ARG_NO_PAGER,
4445a875
LP		 4470 ARG_NO_WALL,
4471 ARG_ORDER,
8fe914ec 4472 ARG_REQUIRE,
ee5762e3 4473 ARG_FULL,
ee5762e3 4474 ARG_NO_RELOAD,
8a0867d6
LP		 4475 ARG_DEFAULTS,
4476 ARG_KILL_MODE,
501fc174 4477 ARG_KILL_WHO,
30732560
LP		 4478 ARG_NO_ASK_PASSWORD,
4479 ARG_FAILED
7e4249b9
LP		 4480 };
4481
4482 static const struct option options[] = {
ee5762e3 4483 { "help", no_argument, NULL, 'h' },
35df8f27 4484 { "version", no_argument, NULL, ARG_VERSION },
ee5762e3
LP		 4485 { "type", required_argument, NULL, 't' },
4486 { "property", required_argument, NULL, 'p' },
4487 { "all", no_argument, NULL, 'a' },
30732560 4488 { "failed", no_argument, NULL, ARG_FAILED },
ee5762e3
LP		 4489 { "full", no_argument, NULL, ARG_FULL },
4490 { "fail", no_argument, NULL, ARG_FAIL },
e67c3609 4491 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
af2d49f7 4492 { "user", no_argument, NULL, ARG_USER },
ee5762e3
LP		 4493 { "system", no_argument, NULL, ARG_SYSTEM },
4494 { "global", no_argument, NULL, ARG_GLOBAL },
4495 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
0736af98 4496 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
ee5762e3
LP		 4497 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4498 { "quiet", no_argument, NULL, 'q' },
4499 { "order", no_argument, NULL, ARG_ORDER },
4500 { "require", no_argument, NULL, ARG_REQUIRE },
b4f27ccc 4501 { "force", no_argument, NULL, 'f' },
ee5762e3 4502 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
f1e36d67 4503 { "defaults", no_argument, NULL, ARG_DEFAULTS },
8a0867d6
LP		 4504 { "kill-mode", required_argument, NULL, ARG_KILL_MODE },
4505 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4506 { "signal", required_argument, NULL, 's' },
501fc174 4507 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
a8f11321
LP		 4508 { "host", required_argument, NULL, 'H' },
4509 { "privileged",no_argument, NULL, 'P' },
ee5762e3 4510 { NULL, 0, NULL, 0 }
7e4249b9
LP		 4511 };
4512
4513 int c;
4514
e4b61340 4515 assert(argc >= 0);
7e4249b9
LP		 4516 assert(argv);
4517
501fc174
LP		 4518 /* Only when running as systemctl we ask for passwords */
4519 arg_ask_password = true;
4520
a8f11321 4521 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:P", options, NULL)) >= 0) {
7e4249b9
LP		 4522
4523 switch (c) {
4524
4525 case 'h':
e4b61340 4526 systemctl_help();
7e4249b9 4527 return 0;
35df8f27
LP		 4528
4529 case ARG_VERSION:
4530 puts(PACKAGE_STRING);
7d568925
LP		 4531 puts(DISTRIBUTION);
4532 puts(SYSTEMD_FEATURES);
35df8f27 4533 return 0;
7e4249b9
LP		 4534
4535 case 't':
4536 arg_type = optarg;
4537 break;
4538
ea4a240d
LP		 4539 case 'p': {
4540 char **l;
4541
4542 if (!(l = strv_append(arg_property, optarg)))
4543 return -ENOMEM;
4544
4545 strv_free(arg_property);
4546 arg_property = l;
48220598
LP		 4547
4548 /* If the user asked for a particular
4549 * property, show it to him, even if it is
4550 * empty. */
4551 arg_all = true;
4552 break;
ea4a240d 4553 }
48220598 4554
7e4249b9
LP		 4555 case 'a':
4556 arg_all = true;
4557 break;
4558
90d473a1 4559 case ARG_FAIL:
e67c3609
LP		 4560 arg_job_mode = "fail";
4561 break;
4562
4563 case ARG_IGNORE_DEPENDENCIES:
4564 arg_job_mode = "ignore-dependencies";
7e4249b9
LP		 4565 break;
4566
af2d49f7
LP		 4567 case ARG_USER:
4568 arg_user = true;
7e4249b9
LP		 4569 break;
4570
4571 case ARG_SYSTEM:
af2d49f7 4572 arg_user = false;
7e4249b9
LP		 4573 break;
4574
6e905d93
LP		 4575 case ARG_NO_BLOCK:
4576 arg_no_block = true;
7e4249b9
LP		 4577 break;
4578
611efaac
LP		 4579 case ARG_NO_PAGER:
4580 arg_no_pager = true;
4581 break;
0736af98 4582
514f4ef5
LP		 4583 case ARG_NO_WALL:
4584 arg_no_wall = true;
4585 break;
4586
4445a875
LP		 4587 case ARG_ORDER:
4588 arg_dot = DOT_ORDER;
4589 break;
4590
4591 case ARG_REQUIRE:
4592 arg_dot = DOT_REQUIRE;
4593 break;
4594
8fe914ec
LP		 4595 case ARG_FULL:
4596 arg_full = true;
4597 break;
4598
30732560
LP		 4599 case ARG_FAILED:
4600 arg_failed = true;
4601 break;
4602
0183528f
LP		 4603 case 'q':
4604 arg_quiet = true;
4605 break;
4606
b4f27ccc 4607 case 'f':
ee5762e3
LP		 4608 arg_force = true;
4609 break;
4610
4611 case ARG_NO_RELOAD:
4612 arg_no_reload = true;
4613 break;
4614
4615 case ARG_GLOBAL:
4616 arg_global = true;
af2d49f7 4617 arg_user = true;
ee5762e3
LP		 4618 break;
4619
4620 case ARG_DEFAULTS:
4621 arg_defaults = true;
4622 break;
4623
8a0867d6
LP		 4624 case ARG_KILL_WHO:
4625 arg_kill_who = optarg;
4626 break;
4627
4628 case ARG_KILL_MODE:
4629 arg_kill_mode = optarg;
4630 break;
4631
4632 case 's':
4633 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4634 log_error("Failed to parse signal string %s.", optarg);
4635 return -EINVAL;
4636 }
4637 break;
4638
501fc174
LP		 4639 case ARG_NO_ASK_PASSWORD:
4640 arg_ask_password = false;
4641 break;
4642
a8f11321
LP		 4643 case 'P':
4644 arg_transport = TRANSPORT_POLKIT;
4645 break;
4646
4647 case 'H':
4648 arg_transport = TRANSPORT_SSH;
4649 arg_host = optarg;
4650 break;
4651
7e4249b9
LP		 4652 case '?':
4653 return -EINVAL;
4654
4655 default:
4656 log_error("Unknown option code %c", c);
4657 return -EINVAL;
4658 }
4659 }
4660
a8f11321
LP		 4661 if (arg_transport != TRANSPORT_NORMAL && arg_user) {
4662 log_error("Cannot access user instance remotely.");
4663 return -EINVAL;
4664 }
4665
7e4249b9
LP		 4666 return 1;
4667}
4668
e4b61340
LP		 4669static int halt_parse_argv(int argc, char *argv[]) {
4670
4671 enum {
4672 ARG_HELP = 0x100,
4673 ARG_HALT,
514f4ef5
LP		 4674 ARG_REBOOT,
4675 ARG_NO_WALL
e4b61340
LP		 4676 };
4677
4678 static const struct option options[] = {
4679 { "help", no_argument, NULL, ARG_HELP },
4680 { "halt", no_argument, NULL, ARG_HALT },
4681 { "poweroff", no_argument, NULL, 'p' },
4682 { "reboot", no_argument, NULL, ARG_REBOOT },
4683 { "force", no_argument, NULL, 'f' },
4684 { "wtmp-only", no_argument, NULL, 'w' },
4685 { "no-wtmp", no_argument, NULL, 'd' },
4686 { "no-sync", no_argument, NULL, 'n' },
514f4ef5 4687 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4688 { NULL, 0, NULL, 0 }
4689 };
4690
4691 int c, runlevel;
4692
4693 assert(argc >= 0);
4694 assert(argv);
4695
4696 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4697 if (runlevel == '0' || runlevel == '6')
4698 arg_immediate = true;
4699
4700 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4701 switch (c) {
4702
4703 case ARG_HELP:
4704 halt_help();
4705 return 0;
4706
4707 case ARG_HALT:
4708 arg_action = ACTION_HALT;
4709 break;
4710
4711 case 'p':
a042efad
MS		 4712 if (arg_action != ACTION_REBOOT)
4713 arg_action = ACTION_POWEROFF;
e4b61340
LP		 4714 break;
4715
4716 case ARG_REBOOT:
4717 arg_action = ACTION_REBOOT;
4718 break;
4719
4720 case 'f':
4721 arg_immediate = true;
4722 break;
4723
4724 case 'w':
4725 arg_dry = true;
4726 break;
4727
4728 case 'd':
4729 arg_no_wtmp = true;
4730 break;
4731
4732 case 'n':
4733 arg_no_sync = true;
4734 break;
4735
514f4ef5
LP		 4736 case ARG_NO_WALL:
4737 arg_no_wall = true;
4738 break;
4739
e4b61340
LP		 4740 case 'i':
4741 case 'h':
4742 /* Compatibility nops */
4743 break;
4744
4745 case '?':
4746 return -EINVAL;
4747
4748 default:
4749 log_error("Unknown option code %c", c);
4750 return -EINVAL;
4751 }
4752 }
4753
4754 if (optind < argc) {
4755 log_error("Too many arguments.");
4756 return -EINVAL;
4757 }
4758
4759 return 1;
4760}
4761
f6144808
LP		 4762static int parse_time_spec(const char *t, usec_t *_u) {
4763 assert(t);
4764 assert(_u);
4765
4766 if (streq(t, "now"))
4767 *_u = 0;
4768 else if (t[0] == '+') {
4769 uint64_t u;
4770
4771 if (safe_atou64(t + 1, &u) < 0)
4772 return -EINVAL;
4773
4774 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4775 } else {
4776 char *e = NULL;
4777 long hour, minute;
4778 struct tm tm;
4779 time_t s;
4780 usec_t n;
4781
4782 errno = 0;
4783 hour = strtol(t, &e, 10);
4784 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4785 return -EINVAL;
4786
4787 minute = strtol(e+1, &e, 10);
4788 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4789 return -EINVAL;
4790
4791 n = now(CLOCK_REALTIME);
08e4b1c5
LP		 4792 s = (time_t) (n / USEC_PER_SEC);
4793
4794 zero(tm);
f6144808
LP		 4795 assert_se(localtime_r(&s, &tm));
4796
4797 tm.tm_hour = (int) hour;
4798 tm.tm_min = (int) minute;
08e4b1c5 4799 tm.tm_sec = 0;
f6144808
LP		 4800
4801 assert_se(s = mktime(&tm));
4802
4803 *_u = (usec_t) s * USEC_PER_SEC;
4804
4805 while (*_u <= n)
4806 *_u += USEC_PER_DAY;
4807 }
4808
4809 return 0;
4810}
4811
5622dde3
KS		 4812static bool kexec_loaded(void) {
4813 bool loaded = false;
4814 char *s;
4815
4816 if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) {
4817 if (s[0] == '1')
4818 loaded = true;
4819 free(s);
4820 }
4821 return loaded;
4822}
4823
e4b61340
LP		 4824static int shutdown_parse_argv(int argc, char *argv[]) {
4825
4826 enum {
4827 ARG_HELP = 0x100,
514f4ef5 4828 ARG_NO_WALL
e4b61340
LP		 4829 };
4830
4831 static const struct option options[] = {
4832 { "help", no_argument, NULL, ARG_HELP },
4833 { "halt", no_argument, NULL, 'H' },
4834 { "poweroff", no_argument, NULL, 'P' },
4835 { "reboot", no_argument, NULL, 'r' },
514f4ef5 4836 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4837 { NULL, 0, NULL, 0 }
4838 };
4839
f6144808 4840 int c, r;
e4b61340
LP		 4841
4842 assert(argc >= 0);
4843 assert(argv);
4844
f6144808 4845 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
e4b61340
LP		 4846 switch (c) {
4847
4848 case ARG_HELP:
4849 shutdown_help();
4850 return 0;
4851
4852 case 'H':
4853 arg_action = ACTION_HALT;
4854 break;
4855
4856 case 'P':
4857 arg_action = ACTION_POWEROFF;
4858 break;
4859
4860 case 'r':
5622dde3
KS		 4861 if (kexec_loaded())
4862 arg_action = ACTION_KEXEC;
4863 else
4864 arg_action = ACTION_REBOOT;
e4b61340
LP		 4865 break;
4866
4867 case 'h':
4868 if (arg_action != ACTION_HALT)
4869 arg_action = ACTION_POWEROFF;
4870 break;
4871
4872 case 'k':
4873 arg_dry = true;
4874 break;
4875
514f4ef5
LP		 4876 case ARG_NO_WALL:
4877 arg_no_wall = true;
4878 break;
4879
e4b61340
LP		 4880 case 't':
4881 case 'a':
4882 /* Compatibility nops */
4883 break;
4884
f6144808
LP		 4885 case 'c':
4886 arg_action = ACTION_CANCEL_SHUTDOWN;
4887 break;
4888
e4b61340
LP		 4889 case '?':
4890 return -EINVAL;
4891
4892 default:
4893 log_error("Unknown option code %c", c);
4894 return -EINVAL;
4895 }
4896 }
4897
6b5ad000 4898 if (argc > optind) {
f6144808
LP		 4899 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4900 log_error("Failed to parse time specification: %s", argv[optind]);
4901 return r;
4902 }
6b5ad000 4903 } else
08e4b1c5 4904 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
442b9094 4905
f6144808 4906 /* We skip the time argument */
e4b61340
LP		 4907 if (argc > optind + 1)
4908 arg_wall = argv + optind + 1;
4909
4910 optind = argc;
4911
4912 return 1;
e4b61340
LP		 4913}
4914
4915static int telinit_parse_argv(int argc, char *argv[]) {
4916
4917 enum {
4918 ARG_HELP = 0x100,
514f4ef5 4919 ARG_NO_WALL
e4b61340
LP		 4920 };
4921
4922 static const struct option options[] = {
4923 { "help", no_argument, NULL, ARG_HELP },
514f4ef5 4924 { "no-wall", no_argument, NULL, ARG_NO_WALL },
e4b61340
LP		 4925 { NULL, 0, NULL, 0 }
4926 };
4927
4928 static const struct {
4929 char from;
4930 enum action to;
4931 } table[] = {
4932 { '0', ACTION_POWEROFF },
4933 { '6', ACTION_REBOOT },
ef2f1067 4934 { '1', ACTION_RESCUE },
e4b61340
LP		 4935 { '2', ACTION_RUNLEVEL2 },
4936 { '3', ACTION_RUNLEVEL3 },
4937 { '4', ACTION_RUNLEVEL4 },
4938 { '5', ACTION_RUNLEVEL5 },
4939 { 's', ACTION_RESCUE },
4940 { 'S', ACTION_RESCUE },
4941 { 'q', ACTION_RELOAD },
4942 { 'Q', ACTION_RELOAD },
4943 { 'u', ACTION_REEXEC },
4944 { 'U', ACTION_REEXEC }
4945 };
4946
4947 unsigned i;
4948 int c;
4949
4950 assert(argc >= 0);
4951 assert(argv);
4952
4953 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4954 switch (c) {
4955
4956 case ARG_HELP:
4957 telinit_help();
4958 return 0;
4959
514f4ef5
LP		 4960 case ARG_NO_WALL:
4961 arg_no_wall = true;
4962 break;
4963
e4b61340
LP		 4964 case '?':
4965 return -EINVAL;
4966
4967 default:
4968 log_error("Unknown option code %c", c);
4969 return -EINVAL;
4970 }
4971 }
4972
4973 if (optind >= argc) {
2f02ce40 4974 telinit_help();
e4b61340
LP		 4975 return -EINVAL;
4976 }
4977
4978 if (optind + 1 < argc) {
4979 log_error("Too many arguments.");
4980 return -EINVAL;
4981 }
4982
4983 if (strlen(argv[optind]) != 1) {
4984 log_error("Expected single character argument.");
4985 return -EINVAL;
4986 }
4987
4988 for (i = 0; i < ELEMENTSOF(table); i++)
4989 if (table[i].from == argv[optind][0])
4990 break;
4991
4992 if (i >= ELEMENTSOF(table)) {
4993 log_error("Unknown command %s.", argv[optind]);
4994 return -EINVAL;
4995 }
4996
4997 arg_action = table[i].to;
4998
4999 optind ++;
5000
5001 return 1;
5002}
5003
5004static int runlevel_parse_argv(int argc, char *argv[]) {
5005
5006 enum {
5007 ARG_HELP = 0x100,
5008 };
5009
5010 static const struct option options[] = {
5011 { "help", no_argument, NULL, ARG_HELP },
5012 { NULL, 0, NULL, 0 }
5013 };
5014
5015 int c;
5016
5017 assert(argc >= 0);
5018 assert(argv);
5019
5020 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5021 switch (c) {
5022
5023 case ARG_HELP:
5024 runlevel_help();
5025 return 0;
5026
5027 case '?':
5028 return -EINVAL;
5029
5030 default:
5031 log_error("Unknown option code %c", c);
5032 return -EINVAL;
5033 }
5034 }
5035
5036 if (optind < argc) {
5037 log_error("Too many arguments.");
5038 return -EINVAL;
5039 }
5040
5041 return 1;
5042}
5043
5044static int parse_argv(int argc, char *argv[]) {
5045 assert(argc >= 0);
5046 assert(argv);
5047
5048 if (program_invocation_short_name) {
5049
5050 if (strstr(program_invocation_short_name, "halt")) {
5051 arg_action = ACTION_HALT;
5052 return halt_parse_argv(argc, argv);
5053 } else if (strstr(program_invocation_short_name, "poweroff")) {
5054 arg_action = ACTION_POWEROFF;
5055 return halt_parse_argv(argc, argv);
5056 } else if (strstr(program_invocation_short_name, "reboot")) {
5622dde3
KS		 5057 if (kexec_loaded())
5058 arg_action = ACTION_KEXEC;
5059 else
5060 arg_action = ACTION_REBOOT;
e4b61340
LP		 5061 return halt_parse_argv(argc, argv);
5062 } else if (strstr(program_invocation_short_name, "shutdown")) {
5063 arg_action = ACTION_POWEROFF;
5064 return shutdown_parse_argv(argc, argv);
5065 } else if (strstr(program_invocation_short_name, "init")) {
d5ca5f11
LP		 5066
5067 if (sd_booted() > 0) {
5068 arg_action = ACTION_INVALID;
5069 return telinit_parse_argv(argc, argv);
5070 } else {
5071 /* Hmm, so some other init system is
5072 * running, we need to forward this
5073 * request to it. For now we simply
5074 * guess that it is Upstart. */
5075
5076 execv("/lib/upstart/telinit", argv);
5077
5078 log_error("Couldn't find an alternative telinit implementation to spawn.");
5079 return -EIO;
5080 }
5081
e4b61340
LP		 5082 } else if (strstr(program_invocation_short_name, "runlevel")) {
5083 arg_action = ACTION_RUNLEVEL;
5084 return runlevel_parse_argv(argc, argv);
5085 }
5086 }
5087
5088 arg_action = ACTION_SYSTEMCTL;
5089 return systemctl_parse_argv(argc, argv);
5090}
5091
d55ae9e6 5092static int action_to_runlevel(void) {
eb22ac37
LP		 5093
5094 static const char table[_ACTION_MAX] = {
5095 [ACTION_HALT] = '0',
5096 [ACTION_POWEROFF] = '0',
5097 [ACTION_REBOOT] = '6',
5098 [ACTION_RUNLEVEL2] = '2',
5099 [ACTION_RUNLEVEL3] = '3',
5100 [ACTION_RUNLEVEL4] = '4',
5101 [ACTION_RUNLEVEL5] = '5',
5102 [ACTION_RESCUE] = '1'
5103 };
5104
d55ae9e6
LP		 5105 assert(arg_action < _ACTION_MAX);
5106
5107 return table[arg_action];
5108}
5109
f1c5860b 5110static int talk_upstart(void) {
d55ae9e6
LP		 5111 DBusMessage *m = NULL, *reply = NULL;
5112 DBusError error;
5113 int previous, rl, r;
5114 char
5115 env1_buf[] = "RUNLEVEL=X",
5116 env2_buf[] = "PREVLEVEL=X";
5117 char *env1 = env1_buf, *env2 = env2_buf;
5118 const char *emit = "runlevel";
5119 dbus_bool_t b_false = FALSE;
5120 DBusMessageIter iter, sub;
f1c5860b 5121 DBusConnection *bus;
d55ae9e6
LP		 5122
5123 dbus_error_init(&error);
5124
5125 if (!(rl = action_to_runlevel()))
5126 return 0;
5127
5128 if (utmp_get_runlevel(&previous, NULL) < 0)
5129 previous = 'N';
5130
b574246b 5131 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
f1c5860b
LP		 5132 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5133 r = 0;
5134 goto finish;
5135 }
5136
4cf5d675 5137 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
f1c5860b
LP		 5138 r = -EIO;
5139 goto finish;
5140 }
5141
5142 if ((r = bus_check_peercred(bus)) < 0) {
5143 log_error("Failed to verify owner of bus.");
5144 goto finish;
5145 }
5146
d55ae9e6
LP		 5147 if (!(m = dbus_message_new_method_call(
5148 "com.ubuntu.Upstart",
5149 "/com/ubuntu/Upstart",
5150 "com.ubuntu.Upstart0_6",
5151 "EmitEvent"))) {
5152
5153 log_error("Could not allocate message.");
f1c5860b
LP		 5154 r = -ENOMEM;
5155 goto finish;
d55ae9e6
LP		 5156 }
5157
5158 dbus_message_iter_init_append(m, &iter);
5159
5160 env1_buf[sizeof(env1_buf)-2] = rl;
5161 env2_buf[sizeof(env2_buf)-2] = previous;
5162
5163 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5164 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5165 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5166 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5167 !dbus_message_iter_close_container(&iter, &sub) ||
5168 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5169 log_error("Could not append arguments to message.");
5170 r = -ENOMEM;
5171 goto finish;
5172 }
5173
5174 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5175
5176 if (error_is_no_service(&error)) {
aabd9b11 5177 r = -EADDRNOTAVAIL;
d55ae9e6
LP		 5178 goto finish;
5179 }
5180
4cf5d675 5181 log_error("Failed to issue method call: %s", bus_error_message(&error));
d55ae9e6
LP		 5182 r = -EIO;
5183 goto finish;
5184 }
5185
aabd9b11 5186 r = 0;
d55ae9e6
LP		 5187
5188finish:
5189 if (m)
5190 dbus_message_unref(m);
5191
5192 if (reply)
5193 dbus_message_unref(reply);
5194
b574246b 5195 if (bus) {
5d452f9c 5196 dbus_connection_flush(bus);
b574246b 5197 dbus_connection_close(bus);
f1c5860b 5198 dbus_connection_unref(bus);
b574246b 5199 }
f1c5860b 5200
d55ae9e6
LP		 5201 dbus_error_free(&error);
5202
5203 return r;
5204}
5205
5206static int talk_initctl(void) {
eb22ac37
LP		 5207 struct init_request request;
5208 int r, fd;
d55ae9e6 5209 char rl;
eb22ac37 5210
d55ae9e6 5211 if (!(rl = action_to_runlevel()))
eb22ac37
LP		 5212 return 0;
5213
5214 zero(request);
5215 request.magic = INIT_MAGIC;
5216 request.sleeptime = 0;
5217 request.cmd = INIT_CMD_RUNLVL;
d55ae9e6
LP		 5218 request.runlevel = rl;
5219
5220 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5221
5222 if (errno == ENOENT)
5223 return 0;
eb22ac37 5224
d55ae9e6 5225 log_error("Failed to open "INIT_FIFO": %m");
eb22ac37 5226 return -errno;
d55ae9e6 5227 }
eb22ac37 5228
d55ae9e6 5229 errno = 0;
eb22ac37
LP		 5230 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5231 close_nointr_nofail(fd);
5232
d55ae9e6
LP		 5233 if (r < 0) {
5234 log_error("Failed to write to "INIT_FIFO": %m");
eb22ac37 5235 return errno ? -errno : -EIO;
d55ae9e6 5236 }
eb22ac37
LP		 5237
5238 return 1;
e4b61340
LP		 5239}
5240
ee5762e3 5241static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
7e4249b9 5242
7e4249b9
LP		 5243 static const struct {
5244 const char* verb;
5245 const enum {
5246 MORE,
5247 LESS,
5248 EQUAL
5249 } argc_cmp;
5250 const int argc;
5251 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
5252 } verbs[] = {
ee5762e3
LP		 5253 { "list-units", LESS, 1, list_units },
5254 { "list-jobs", EQUAL, 1, list_jobs },
5255 { "clear-jobs", EQUAL, 1, daemon_reload },
5256 { "load", MORE, 2, load_unit },
5257 { "cancel", MORE, 2, cancel_job },
5258 { "start", MORE, 2, start_unit },
5259 { "stop", MORE, 2, start_unit },
a76f7be2 5260 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
ee5762e3
LP		 5261 { "reload", MORE, 2, start_unit },
5262 { "restart", MORE, 2, start_unit },
5263 { "try-restart", MORE, 2, start_unit },
5264 { "reload-or-restart", MORE, 2, start_unit },
5265 { "reload-or-try-restart", MORE, 2, start_unit },
5266 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
64e5f1b7 5267 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
ee5762e3
LP		 5268 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5269 { "isolate", EQUAL, 2, start_unit },
8a0867d6 5270 { "kill", MORE, 2, kill_unit },
ee5762e3
LP		 5271 { "is-active", MORE, 2, check_unit },
5272 { "check", MORE, 2, check_unit },
5273 { "show", MORE, 1, show },
5274 { "status", MORE, 2, show },
5275 { "monitor", EQUAL, 1, monitor },
5276 { "dump", EQUAL, 1, dump },
5277 { "dot", EQUAL, 1, dot },
5278 { "snapshot", LESS, 2, snapshot },
5279 { "delete", MORE, 2, delete_snapshot },
5280 { "daemon-reload", EQUAL, 1, daemon_reload },
5281 { "daemon-reexec", EQUAL, 1, daemon_reload },
ee5762e3
LP		 5282 { "show-environment", EQUAL, 1, show_enviroment },
5283 { "set-environment", MORE, 2, set_environment },
5284 { "unset-environment", MORE, 2, set_environment },
5285 { "halt", EQUAL, 1, start_special },
5286 { "poweroff", EQUAL, 1, start_special },
5287 { "reboot", EQUAL, 1, start_special },
20b09ca7 5288 { "kexec", EQUAL, 1, start_special },
ee5762e3
LP		 5289 { "default", EQUAL, 1, start_special },
5290 { "rescue", EQUAL, 1, start_special },
5291 { "emergency", EQUAL, 1, start_special },
20b09ca7 5292 { "exit", EQUAL, 1, start_special },
fdf20a31 5293 { "reset-failed", MORE, 1, reset_failed },
ee5762e3
LP		 5294 { "enable", MORE, 2, enable_unit },
5295 { "disable", MORE, 2, enable_unit },
5296 { "is-enabled", MORE, 2, enable_unit }
7e4249b9
LP		 5297 };
5298
e4b61340 5299 int left;
7e4249b9 5300 unsigned i;
7e4249b9 5301
e4b61340
LP		 5302 assert(argc >= 0);
5303 assert(argv);
ee5762e3 5304 assert(error);
7e4249b9
LP		 5305
5306 left = argc - optind;
5307
5308 if (left <= 0)
5309 /* Special rule: no arguments means "list-units" */
5310 i = 0;
5311 else {
0183528f
LP		 5312 if (streq(argv[optind], "help")) {
5313 systemctl_help();
5314 return 0;
5315 }
5316
7e4249b9
LP		 5317 for (i = 0; i < ELEMENTSOF(verbs); i++)
5318 if (streq(argv[optind], verbs[i].verb))
5319 break;
5320
5321 if (i >= ELEMENTSOF(verbs)) {
5322 log_error("Unknown operation %s", argv[optind]);
e4b61340 5323 return -EINVAL;
7e4249b9
LP		 5324 }
5325 }
5326
5327 switch (verbs[i].argc_cmp) {
5328
5329 case EQUAL:
5330 if (left != verbs[i].argc) {
5331 log_error("Invalid number of arguments.");
e4b61340 5332 return -EINVAL;
7e4249b9
LP		 5333 }
5334
5335 break;
5336
5337 case MORE:
5338 if (left < verbs[i].argc) {
5339 log_error("Too few arguments.");
e4b61340 5340 return -EINVAL;
7e4249b9
LP		 5341 }
5342
5343 break;
5344
5345 case LESS:
5346 if (left > verbs[i].argc) {
5347 log_error("Too many arguments.");
e4b61340 5348 return -EINVAL;
7e4249b9
LP		 5349 }
5350
5351 break;
5352
5353 default:
5354 assert_not_reached("Unknown comparison operator.");
5355 }
5356
ee5762e3
LP		 5357 /* Require a bus connection for all operations but
5358 * enable/disable */
82e23ddd
LP		 5359 if (!streq(verbs[i].verb, "enable") && !streq(verbs[i].verb, "disable")) {
5360
5361 if (running_in_chroot() > 0) {
5362 log_info("Running in chroot, ignoring request.");
5363 return 0;
5364 }
5365
5366 if (!bus) {
5367 log_error("Failed to get D-Bus connection: %s", error->message);
5368 return -EIO;
5369 }
ee5762e3
LP		 5370 }
5371
e4b61340
LP		 5372 return verbs[i].dispatch(bus, argv + optind, left);
5373}
5374
9be9828c 5375static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
f6144808
LP		 5376 int fd = -1;
5377 struct msghdr msghdr;
5378 struct iovec iovec;
5379 union sockaddr_union sockaddr;
f6144808
LP		 5380 struct shutdownd_command c;
5381
5382 zero(c);
5383 c.elapse = t;
5384 c.mode = mode;
9be9828c
LP		 5385 c.warn_wall = warn;
5386
5387 if (message)
5388 strncpy(c.wall_message, message, sizeof(c.wall_message));
f6144808
LP		 5389
5390 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
5391 return -errno;
5392
5393 zero(sockaddr);
5394 sockaddr.sa.sa_family = AF_UNIX;
5395 sockaddr.un.sun_path[0] = 0;
2b583ce6 5396 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
f6144808
LP		 5397
5398 zero(iovec);
5399 iovec.iov_base = (char*) &c;
5400 iovec.iov_len = sizeof(c);
5401
f6144808
LP		 5402 zero(msghdr);
5403 msghdr.msg_name = &sockaddr;
2b583ce6 5404 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
f6144808
LP		 5405
5406 msghdr.msg_iov = &iovec;
5407 msghdr.msg_iovlen = 1;
f6144808
LP		 5408
5409 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5410 close_nointr_nofail(fd);
5411 return -errno;
5412 }
5413
5414 close_nointr_nofail(fd);
5415 return 0;
5416}
5417
e4b61340 5418static int reload_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5419
5420 if (bus) {
5421 /* First, try systemd via D-Bus. */
e364ad06 5422 if (daemon_reload(bus, NULL, 0) > 0)
e4b61340
LP		 5423 return 0;
5424 }
5425
5426 /* Nothing else worked, so let's try signals */
5427 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5428
5429 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5430 log_error("kill() failed: %m");
5431 return -errno;
5432 }
5433
5434 return 0;
5435}
5436
5437static int start_with_fallback(DBusConnection *bus) {
e4b61340
LP		 5438
5439 if (bus) {
5440 /* First, try systemd via D-Bus. */
706900b7 5441 if (start_unit(bus, NULL, 0) >= 0)
983d9c90 5442 goto done;
e4b61340
LP		 5443 }
5444
ec7f7f20
LP		 5445 /* Hmm, talking to systemd via D-Bus didn't work. Then
5446 * let's try to talk to Upstart via D-Bus. */
e364ad06 5447 if (talk_upstart() > 0)
ec7f7f20
LP		 5448 goto done;
5449
e4b61340
LP		 5450 /* Nothing else worked, so let's try
5451 * /dev/initctl */
fbc43921 5452 if (talk_initctl() > 0)
983d9c90 5453 goto done;
d55ae9e6
LP		 5454
5455 log_error("Failed to talk to init daemon.");
5456 return -EIO;
983d9c90
LP		 5457
5458done:
5459 warn_wall(arg_action);
5460 return 0;
e4b61340
LP		 5461}
5462
5463static int halt_main(DBusConnection *bus) {
5464 int r;
5465
bc8c2f5c 5466 if (geteuid() != 0) {
cc8a7a61 5467 log_error("Must be root.");
bc8c2f5c
LP		 5468 return -EPERM;
5469 }
5470
f6144808 5471 if (arg_when > 0) {
9be9828c 5472 char *m;
08e4b1c5 5473 char date[FORMAT_TIMESTAMP_MAX];
9be9828c
LP		 5474
5475 m = strv_join(arg_wall, " ");
5476 r = send_shutdownd(arg_when,
5477 arg_action == ACTION_HALT ? 'H' :
5478 arg_action == ACTION_POWEROFF ? 'P' :
5479 'r',
5480 !arg_no_wall,
5481 m);
5482 free(m);
5483
5484 if (r < 0)
f6144808 5485 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
08e4b1c5
LP		 5486 else {
5487 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5488 format_timestamp(date, sizeof(date), arg_when));
f6144808 5489 return 0;
08e4b1c5 5490 }
f6144808
LP		 5491 }
5492
d47b555b 5493 if (!arg_dry && !arg_immediate)
e4b61340
LP		 5494 return start_with_fallback(bus);
5495
d90e1a30
LP		 5496 if (!arg_no_wtmp) {
5497 if (sd_booted() > 0)
5498 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5499 else if ((r = utmp_put_shutdown(0)) < 0)
e4b61340 5500 log_warning("Failed to write utmp record: %s", strerror(-r));
d90e1a30 5501 }
e4b61340
LP		 5502
5503 if (!arg_no_sync)
5504 sync();
5505
5506 if (arg_dry)
5507 return 0;
5508
5509 /* Make sure C-A-D is handled by the kernel from this
5510 * point on... */
5511 reboot(RB_ENABLE_CAD);
5512
5513 switch (arg_action) {
5514
5515 case ACTION_HALT:
3059b1c1 5516 log_info("Halting.");
e4b61340
LP		 5517 reboot(RB_HALT_SYSTEM);
5518 break;
5519
5520 case ACTION_POWEROFF:
3059b1c1 5521 log_info("Powering off.");
e4b61340
LP		 5522 reboot(RB_POWER_OFF);
5523 break;
5524
5525 case ACTION_REBOOT:
3059b1c1 5526 log_info("Rebooting.");
e4b61340
LP		 5527 reboot(RB_AUTOBOOT);
5528 break;
5529
5530 default:
5531 assert_not_reached("Unknown halt action.");
5532 }
5533
5534 /* We should never reach this. */
5535 return -ENOSYS;
5536}
5537
5538static int runlevel_main(void) {
5539 int r, runlevel, previous;
5540
5541 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
cd6d0a45 5542 printf("unknown\n");
e4b61340
LP		 5543 return r;
5544 }
5545
5546 printf("%c %c\n",
5547 previous <= 0 ? 'N' : previous,
5548 runlevel <= 0 ? 'N' : runlevel);
5549
5550 return 0;
5551}
5552
0736af98 5553static void pager_open(void) {
611efaac
LP		 5554 int fd[2];
5555 const char *pager;
c0f9c7da 5556 pid_t parent_pid;
611efaac 5557
1888c907
LP		 5558 if (pager_pid > 0)
5559 return;
5560
611efaac
LP		 5561 if (!on_tty() || arg_no_pager)
5562 return;
5563
5564 if ((pager = getenv("PAGER")))
5565 if (!*pager || streq(pager, "cat"))
5566 return;
5567
4bc5f808
LP		 5568 /* Determine and cache number of columns before we spawn the
5569 * pager so that we get the value from the actual tty */
5570 columns();
5571
611efaac
LP		 5572 if (pipe(fd) < 0) {
5573 log_error("Failed to create pager pipe: %m");
5574 return;
5575 }
5576
c0f9c7da
LP		 5577 parent_pid = getpid();
5578
1888c907
LP		 5579 pager_pid = fork();
5580 if (pager_pid < 0) {
611efaac
LP		 5581 log_error("Failed to fork pager: %m");
5582 close_pipe(fd);
5583 return;
5584 }
5585
1888c907
LP		 5586 /* In the child start the pager */
5587 if (pager_pid == 0) {
611efaac
LP		 5588
5589 dup2(fd[0], STDIN_FILENO);
5590 close_pipe(fd);
5591
4c00bf25 5592 setenv("LESS", "FRSX", 0);
611efaac 5593
c0f9c7da
LP		 5594 /* Make sure the pager goes away when the parent dies */
5595 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
5596 _exit(EXIT_FAILURE);
5597
5598 /* Check whether our parent died before we were able
5599 * to set the death signal */
5600 if (getppid() != parent_pid)
5601 _exit(EXIT_SUCCESS);
1888c907 5602
611efaac
LP		 5603 if (pager) {
5604 execlp(pager, pager, NULL);
5605 execl("/bin/sh", "sh", "-c", pager, NULL);
5606 } else {
75d12d57
LP		 5607 /* Debian's alternatives command for pagers is
5608 * called 'pager'. Note that we do not call
5609 * sensible-pagers here, since that is just a
5610 * shell script that implements a logic that
5611 * is similar to this one anyway, but is
5612 * Debian-specific. */
5613 execlp("pager", "pager", NULL);
5614
611efaac
LP		 5615 execlp("less", "less", NULL);
5616 execlp("more", "more", NULL);
5617 }
5618
5619 log_error("Unable to execute pager: %m");
5620 _exit(EXIT_FAILURE);
5621 }
5622
1888c907 5623 /* Return in the parent */
611efaac
LP		 5624 if (dup2(fd[1], STDOUT_FILENO) < 0)
5625 log_error("Failed to duplicate pager pipe: %m");
5626
5627 close_pipe(fd);
0736af98
MV		 5628}
5629
1888c907
LP		 5630static void pager_close(void) {
5631 siginfo_t dummy;
5632
5633 if (pager_pid <= 0)
5634 return;
5635
5636 /* Inform pager that we are done */
5637 fclose(stdout);
430c18ed 5638 kill(pager_pid, SIGCONT);
1888c907
LP		 5639 wait_for_terminate(pager_pid, &dummy);
5640 pager_pid = 0;
5641}
5642
c0f9c7da
LP		 5643static void agent_close(void) {
5644 siginfo_t dummy;
5645
5646 if (agent_pid <= 0)
5647 return;
5648
5649 /* Inform agent that we are done */
5650 kill(agent_pid, SIGTERM);
430c18ed 5651 kill(agent_pid, SIGCONT);
c0f9c7da
LP		 5652 wait_for_terminate(agent_pid, &dummy);
5653 agent_pid = 0;
5654}
5655
e4b61340 5656int main(int argc, char*argv[]) {
22f4096c 5657 int r, retval = EXIT_FAILURE;
e4b61340
LP		 5658 DBusConnection *bus = NULL;
5659 DBusError error;
5660
5661 dbus_error_init(&error);
5662
5663 log_parse_environment();
2396fb04 5664 log_open();
e4b61340
LP		 5665
5666 if ((r = parse_argv(argc, argv)) < 0)
5667 goto finish;
5668 else if (r == 0) {
22f4096c 5669 retval = EXIT_SUCCESS;
7e4249b9
LP		 5670 goto finish;
5671 }
5672
e4b61340
LP		 5673 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5674 * let's shortcut this */
5675 if (arg_action == ACTION_RUNLEVEL) {
22f4096c
LP		 5676 r = runlevel_main();
5677 retval = r < 0 ? EXIT_FAILURE : r;
e4b61340
LP		 5678 goto finish;
5679 }
5680
82e23ddd
LP		 5681 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5682 log_info("Running in chroot, ignoring request.");
5683 retval = 0;
5684 goto finish;
5685 }
5686
a8f11321
LP		 5687 if (arg_transport == TRANSPORT_NORMAL)
5688 bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
5689 else if (arg_transport == TRANSPORT_POLKIT) {
5690 bus_connect_system_polkit(&bus, &error);
5691 private_bus = false;
5692 } else if (arg_transport == TRANSPORT_SSH) {
5693 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5694 private_bus = false;
5695 } else
5696 assert_not_reached("Uh, invalid transport...");
e4b61340
LP		 5697
5698 switch (arg_action) {
5699
22f4096c
LP		 5700 case ACTION_SYSTEMCTL:
5701 r = systemctl_main(bus, argc, argv, &error);
e4b61340 5702 break;
e4b61340
LP		 5703
5704 case ACTION_HALT:
5705 case ACTION_POWEROFF:
5706 case ACTION_REBOOT:
5622dde3 5707 case ACTION_KEXEC:
22f4096c 5708 r = halt_main(bus);
e4b61340
LP		 5709 break;
5710
e4b61340
LP		 5711 case ACTION_RUNLEVEL2:
5712 case ACTION_RUNLEVEL3:
5713 case ACTION_RUNLEVEL4:
5714 case ACTION_RUNLEVEL5:
5715 case ACTION_RESCUE:
514f4ef5 5716 case ACTION_EMERGENCY:
eb22ac37 5717 case ACTION_DEFAULT:
22f4096c 5718 r = start_with_fallback(bus);
e4b61340 5719 break;
7e4249b9 5720
e4b61340
LP		 5721 case ACTION_RELOAD:
5722 case ACTION_REEXEC:
22f4096c 5723 r = reload_with_fallback(bus);
e4b61340
LP		 5724 break;
5725
f6144808 5726 case ACTION_CANCEL_SHUTDOWN:
22f4096c 5727 r = send_shutdownd(0, 0, false, NULL);
f6144808
LP		 5728 break;
5729
eb22ac37
LP		 5730 case ACTION_INVALID:
5731 case ACTION_RUNLEVEL:
e4b61340
LP		 5732 default:
5733 assert_not_reached("Unknown action");
5734 }
7e4249b9 5735
22f4096c
LP		 5736 retval = r < 0 ? EXIT_FAILURE : r;
5737
7e4249b9
LP		 5738finish:
5739
b574246b 5740 if (bus) {
5d452f9c 5741 dbus_connection_flush(bus);
b574246b 5742 dbus_connection_close(bus);
7e4249b9 5743 dbus_connection_unref(bus);
b574246b 5744 }
7e4249b9 5745
e4b61340
LP		 5746 dbus_error_free(&error);
5747
7e4249b9
LP		 5748 dbus_shutdown();
5749
ea4a240d
LP		 5750 strv_free(arg_property);
5751
1888c907 5752 pager_close();
c0f9c7da 5753 agent_close();
1888c907 5754
7e4249b9
LP		 5755 return retval;
5756}
Unnamed repository; edit this file 'description' to name the repository.