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unit: shorten active state enums to make systemctl output nicer
[thirdparty/systemd.git] / src / mount.c
1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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
22 #include <errno.h>
23 #include <stdio.h>
24 #include <mntent.h>
25 #include <sys/epoll.h>
26 #include <signal.h>
27
28 #include "unit.h"
29 #include "mount.h"
30 #include "load-fragment.h"
31 #include "load-dropin.h"
32 #include "log.h"
33 #include "strv.h"
34 #include "mount-setup.h"
35 #include "unit-name.h"
36 #include "mount.h"
37 #include "dbus-mount.h"
38 #include "special.h"
39
40 static const UnitActiveState state_translation_table[_MOUNT_STATE_MAX] = {
41 [MOUNT_DEAD] = UNIT_INACTIVE,
42 [MOUNT_MOUNTING] = UNIT_ACTIVATING,
43 [MOUNT_MOUNTING_DONE] = UNIT_ACTIVE,
44 [MOUNT_MOUNTED] = UNIT_ACTIVE,
45 [MOUNT_REMOUNTING] = UNIT_RELOADING,
46 [MOUNT_UNMOUNTING] = UNIT_DEACTIVATING,
47 [MOUNT_MOUNTING_SIGTERM] = UNIT_DEACTIVATING,
48 [MOUNT_MOUNTING_SIGKILL] = UNIT_DEACTIVATING,
49 [MOUNT_REMOUNTING_SIGTERM] = UNIT_RELOADING,
50 [MOUNT_REMOUNTING_SIGKILL] = UNIT_RELOADING,
51 [MOUNT_UNMOUNTING_SIGTERM] = UNIT_DEACTIVATING,
52 [MOUNT_UNMOUNTING_SIGKILL] = UNIT_DEACTIVATING,
53 [MOUNT_MAINTENANCE] = UNIT_MAINTENANCE
54 };
55
56 static void mount_init(Unit *u) {
57 Mount *m = MOUNT(u);
58
59 assert(u);
60 assert(u->meta.load_state == UNIT_STUB);
61
62 m->timeout_usec = DEFAULT_TIMEOUT_USEC;
63 exec_context_init(&m->exec_context);
64
65 /* We need to make sure that /bin/mount is always called in
66 * the same process group as us, so that the autofs kernel
67 * side doesn't send us another mount request while we are
68 * already trying to comply its last one. */
69 m->exec_context.no_setsid = true;
70
71 m->timer_watch.type = WATCH_INVALID;
72
73 m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
74 }
75
76 static void mount_unwatch_control_pid(Mount *m) {
77 assert(m);
78
79 if (m->control_pid <= 0)
80 return;
81
82 unit_unwatch_pid(UNIT(m), m->control_pid);
83 m->control_pid = 0;
84 }
85
86 static void mount_parameters_done(MountParameters *p) {
87 assert(p);
88
89 free(p->what);
90 free(p->options);
91 free(p->fstype);
92
93 p->what = p->options = p->fstype = NULL;
94 }
95
96 static void mount_done(Unit *u) {
97 Mount *m = MOUNT(u);
98
99 assert(m);
100
101 free(m->where);
102 m->where = NULL;
103
104 mount_parameters_done(&m->parameters_etc_fstab);
105 mount_parameters_done(&m->parameters_proc_self_mountinfo);
106 mount_parameters_done(&m->parameters_fragment);
107
108 exec_context_done(&m->exec_context);
109 exec_command_done_array(m->exec_command, _MOUNT_EXEC_COMMAND_MAX);
110 m->control_command = NULL;
111
112 mount_unwatch_control_pid(m);
113
114 unit_unwatch_timer(u, &m->timer_watch);
115 }
116
117 static int mount_add_mount_links(Mount *m) {
118 Meta *other;
119 int r;
120
121 assert(m);
122
123 /* Adds in links to other mount points that might lie below or
124 * above us in the hierarchy */
125
126 LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_MOUNT]) {
127 Mount *n = (Mount*) other;
128
129 if (n == m)
130 continue;
131
132 if (n->meta.load_state != UNIT_LOADED)
133 continue;
134
135 if (path_startswith(m->where, n->where)) {
136
137 if ((r = unit_add_dependency(UNIT(m), UNIT_AFTER, UNIT(n), true)) < 0)
138 return r;
139
140 if (n->from_etc_fstab || n->from_fragment)
141 if ((r = unit_add_dependency(UNIT(m), UNIT_REQUIRES, UNIT(n), true)) < 0)
142 return r;
143
144 } else if (path_startswith(n->where, m->where)) {
145
146 if ((r = unit_add_dependency(UNIT(m), UNIT_BEFORE, UNIT(n), true)) < 0)
147 return r;
148
149 if (m->from_etc_fstab || m->from_fragment)
150 if ((r = unit_add_dependency(UNIT(n), UNIT_REQUIRES, UNIT(m), true)) < 0)
151 return r;
152 }
153 }
154
155 return 0;
156 }
157
158 static int mount_add_swap_links(Mount *m) {
159 Meta *other;
160 int r;
161
162 assert(m);
163
164 LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_SWAP])
165 if ((r = swap_add_one_mount_link((Swap*) other, m)) < 0)
166 return r;
167
168 return 0;
169 }
170
171 static int mount_add_path_links(Mount *m) {
172 Meta *other;
173 int r;
174
175 assert(m);
176
177 LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_PATH])
178 if ((r = path_add_one_mount_link((Path*) other, m)) < 0)
179 return r;
180
181 return 0;
182 }
183
184 static int mount_add_automount_links(Mount *m) {
185 Meta *other;
186 int r;
187
188 assert(m);
189
190 LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_AUTOMOUNT])
191 if ((r = automount_add_one_mount_link((Automount*) other, m)) < 0)
192 return r;
193
194 return 0;
195 }
196
197 static int mount_add_socket_links(Mount *m) {
198 Meta *other;
199 int r;
200
201 assert(m);
202
203 LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_SOCKET])
204 if ((r = socket_add_one_mount_link((Socket*) other, m)) < 0)
205 return r;
206
207 return 0;
208 }
209
210 static char* mount_test_option(const char *haystack, const char *needle) {
211 struct mntent me;
212
213 assert(needle);
214
215 /* Like glibc's hasmntopt(), but works on a string, not a
216 * struct mntent */
217
218 if (!haystack)
219 return false;
220
221 zero(me);
222 me.mnt_opts = (char*) haystack;
223
224 return hasmntopt(&me, needle);
225 }
226
227 static int mount_add_target_links(Mount *m) {
228 const char *target;
229 MountParameters *p;
230 Unit *tu;
231 int r;
232 bool noauto, handle, automount, user;
233
234 assert(m);
235
236 if (m->from_fragment)
237 p = &m->parameters_fragment;
238 else if (m->from_etc_fstab)
239 p = &m->parameters_etc_fstab;
240 else
241 return 0;
242
243 noauto = !!mount_test_option(p->options, MNTOPT_NOAUTO);
244 user = mount_test_option(p->options, "user") || mount_test_option(p->options, "users");
245 handle = !!mount_test_option(p->options, "comment=systemd.mount");
246 automount = !!mount_test_option(p->options, "comment=systemd.automount");
247
248 if (mount_test_option(p->options, "_netdev") ||
249 fstype_is_network(p->fstype))
250 target = SPECIAL_REMOTE_FS_TARGET;
251 else
252 target = SPECIAL_LOCAL_FS_TARGET;
253
254 if ((r = manager_load_unit(m->meta.manager, target, NULL, &tu)) < 0)
255 return r;
256
257 if (automount && m->meta.manager->running_as == MANAGER_SYSTEM) {
258 Unit *am;
259
260 if ((r = unit_load_related_unit(UNIT(m), ".automount", &am)) < 0)
261 return r;
262
263 if ((r = unit_add_dependency(tu, UNIT_WANTS, UNIT(am), true)) < 0)
264 return r;
265
266 return unit_add_dependency(UNIT(am), UNIT_BEFORE, tu, true);
267
268 } else {
269
270 if (!noauto && handle)
271 if (user || m->meta.manager->running_as == MANAGER_SYSTEM)
272 if ((r = unit_add_dependency(tu, UNIT_WANTS, UNIT(m), true)) < 0)
273 return r;
274
275 return unit_add_dependency(UNIT(m), UNIT_BEFORE, tu, true);
276 }
277 }
278
279 static int mount_verify(Mount *m) {
280 bool b;
281 char *e;
282 assert(m);
283
284 if (m->meta.load_state != UNIT_LOADED)
285 return 0;
286
287 if (!m->from_etc_fstab && !m->from_fragment && !m->from_proc_self_mountinfo)
288 return -ENOENT;
289
290 if (!(e = unit_name_from_path(m->where, ".mount")))
291 return -ENOMEM;
292
293 b = unit_has_name(UNIT(m), e);
294 free(e);
295
296 if (!b) {
297 log_error("%s's Where setting doesn't match unit name. Refusing.", m->meta.id);
298 return -EINVAL;
299 }
300
301 if (m->meta.fragment_path && !m->parameters_fragment.what) {
302 log_error("%s's What setting is missing. Refusing.", m->meta.id);
303 return -EBADMSG;
304 }
305
306 if (m->exec_context.pam_name && m->kill_mode != KILL_CONTROL_GROUP) {
307 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", m->meta.id);
308 return -EINVAL;
309 }
310
311 return 0;
312 }
313
314 static int mount_load(Unit *u) {
315 Mount *m = MOUNT(u);
316 int r;
317
318 assert(u);
319 assert(u->meta.load_state == UNIT_STUB);
320
321 if ((r = unit_load_fragment_and_dropin_optional(u)) < 0)
322 return r;
323
324 /* This is a new unit? Then let's add in some extras */
325 if (u->meta.load_state == UNIT_LOADED) {
326 const char *what = NULL;
327
328 if (m->meta.fragment_path)
329 m->from_fragment = true;
330
331 if (!m->where)
332 if (!(m->where = unit_name_to_path(u->meta.id)))
333 return -ENOMEM;
334
335 path_kill_slashes(m->where);
336
337 if (!m->meta.description)
338 if ((r = unit_set_description(u, m->where)) < 0)
339 return r;
340
341 if (m->from_fragment && m->parameters_fragment.what)
342 what = m->parameters_fragment.what;
343 else if (m->from_etc_fstab && m->parameters_etc_fstab.what)
344 what = m->parameters_etc_fstab.what;
345 else if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.what)
346 what = m->parameters_proc_self_mountinfo.what;
347
348 if (what)
349 if ((r = unit_add_node_link(u, what, u->meta.manager->running_as == MANAGER_SYSTEM)) < 0)
350 return r;
351
352 if ((r = mount_add_mount_links(m)) < 0)
353 return r;
354
355 if ((r = mount_add_socket_links(m)) < 0)
356 return r;
357
358 if ((r = mount_add_swap_links(m)) < 0)
359 return r;
360
361 if ((r = mount_add_path_links(m)) < 0)
362 return r;
363
364 if ((r = mount_add_automount_links(m)) < 0)
365 return r;
366
367 if ((r = mount_add_target_links(m)) < 0)
368 return r;
369
370 if ((r = unit_add_default_cgroup(u)) < 0)
371 return r;
372 }
373
374 return mount_verify(m);
375 }
376
377 static int mount_notify_automount(Mount *m, int status) {
378 Unit *p;
379 int r;
380
381 assert(m);
382
383 if ((r = unit_get_related_unit(UNIT(m), ".automount", &p)) < 0)
384 return r == -ENOENT ? 0 : r;
385
386 return automount_send_ready(AUTOMOUNT(p), status);
387 }
388
389 static void mount_set_state(Mount *m, MountState state) {
390 MountState old_state;
391 assert(m);
392
393 old_state = m->state;
394 m->state = state;
395
396 if (state != MOUNT_MOUNTING &&
397 state != MOUNT_MOUNTING_DONE &&
398 state != MOUNT_REMOUNTING &&
399 state != MOUNT_UNMOUNTING &&
400 state != MOUNT_MOUNTING_SIGTERM &&
401 state != MOUNT_MOUNTING_SIGKILL &&
402 state != MOUNT_UNMOUNTING_SIGTERM &&
403 state != MOUNT_UNMOUNTING_SIGKILL &&
404 state != MOUNT_REMOUNTING_SIGTERM &&
405 state != MOUNT_REMOUNTING_SIGKILL) {
406 unit_unwatch_timer(UNIT(m), &m->timer_watch);
407 mount_unwatch_control_pid(m);
408 m->control_command = NULL;
409 m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
410 }
411
412 if (state == MOUNT_MOUNTED ||
413 state == MOUNT_REMOUNTING)
414 mount_notify_automount(m, 0);
415 else if (state == MOUNT_DEAD ||
416 state == MOUNT_UNMOUNTING ||
417 state == MOUNT_MOUNTING_SIGTERM ||
418 state == MOUNT_MOUNTING_SIGKILL ||
419 state == MOUNT_REMOUNTING_SIGTERM ||
420 state == MOUNT_REMOUNTING_SIGKILL ||
421 state == MOUNT_UNMOUNTING_SIGTERM ||
422 state == MOUNT_UNMOUNTING_SIGKILL ||
423 state == MOUNT_MAINTENANCE)
424 mount_notify_automount(m, -ENODEV);
425
426 if (state != old_state)
427 log_debug("%s changed %s -> %s",
428 m->meta.id,
429 mount_state_to_string(old_state),
430 mount_state_to_string(state));
431
432 unit_notify(UNIT(m), state_translation_table[old_state], state_translation_table[state]);
433 }
434
435 static int mount_coldplug(Unit *u) {
436 Mount *m = MOUNT(u);
437 MountState new_state = MOUNT_DEAD;
438 int r;
439
440 assert(m);
441 assert(m->state == MOUNT_DEAD);
442
443 if (m->deserialized_state != m->state)
444 new_state = m->deserialized_state;
445 else if (m->from_proc_self_mountinfo)
446 new_state = MOUNT_MOUNTED;
447
448 if (new_state != m->state) {
449
450 if (new_state == MOUNT_MOUNTING ||
451 new_state == MOUNT_MOUNTING_DONE ||
452 new_state == MOUNT_REMOUNTING ||
453 new_state == MOUNT_UNMOUNTING ||
454 new_state == MOUNT_MOUNTING_SIGTERM ||
455 new_state == MOUNT_MOUNTING_SIGKILL ||
456 new_state == MOUNT_UNMOUNTING_SIGTERM ||
457 new_state == MOUNT_UNMOUNTING_SIGKILL ||
458 new_state == MOUNT_REMOUNTING_SIGTERM ||
459 new_state == MOUNT_REMOUNTING_SIGKILL) {
460
461 if (m->control_pid <= 0)
462 return -EBADMSG;
463
464 if ((r = unit_watch_pid(UNIT(m), m->control_pid)) < 0)
465 return r;
466
467 if ((r = unit_watch_timer(UNIT(m), m->timeout_usec, &m->timer_watch)) < 0)
468 return r;
469 }
470
471 mount_set_state(m, new_state);
472 }
473
474 return 0;
475 }
476
477 static void mount_dump(Unit *u, FILE *f, const char *prefix) {
478 Mount *m = MOUNT(u);
479 MountParameters *p;
480
481 assert(m);
482 assert(f);
483
484 if (m->from_proc_self_mountinfo)
485 p = &m->parameters_proc_self_mountinfo;
486 else if (m->from_fragment)
487 p = &m->parameters_fragment;
488 else
489 p = &m->parameters_etc_fstab;
490
491 fprintf(f,
492 "%sMount State: %s\n"
493 "%sWhere: %s\n"
494 "%sWhat: %s\n"
495 "%sFile System Type: %s\n"
496 "%sOptions: %s\n"
497 "%sFrom /etc/fstab: %s\n"
498 "%sFrom /proc/self/mountinfo: %s\n"
499 "%sFrom fragment: %s\n"
500 "%sKillMode: %s\n",
501 prefix, mount_state_to_string(m->state),
502 prefix, m->where,
503 prefix, strna(p->what),
504 prefix, strna(p->fstype),
505 prefix, strna(p->options),
506 prefix, yes_no(m->from_etc_fstab),
507 prefix, yes_no(m->from_proc_self_mountinfo),
508 prefix, yes_no(m->from_fragment),
509 prefix, kill_mode_to_string(m->kill_mode));
510
511 if (m->control_pid > 0)
512 fprintf(f,
513 "%sControl PID: %lu\n",
514 prefix, (unsigned long) m->control_pid);
515
516 exec_context_dump(&m->exec_context, f, prefix);
517 }
518
519 static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
520 pid_t pid;
521 int r;
522
523 assert(m);
524 assert(c);
525 assert(_pid);
526
527 if ((r = unit_watch_timer(UNIT(m), m->timeout_usec, &m->timer_watch)) < 0)
528 goto fail;
529
530 if ((r = exec_spawn(c,
531 NULL,
532 &m->exec_context,
533 NULL, 0,
534 m->meta.manager->environment,
535 true,
536 true,
537 m->meta.manager->confirm_spawn,
538 m->meta.cgroup_bondings,
539 &pid)) < 0)
540 goto fail;
541
542 if ((r = unit_watch_pid(UNIT(m), pid)) < 0)
543 /* FIXME: we need to do something here */
544 goto fail;
545
546 *_pid = pid;
547
548 return 0;
549
550 fail:
551 unit_unwatch_timer(UNIT(m), &m->timer_watch);
552
553 return r;
554 }
555
556 static void mount_enter_dead(Mount *m, bool success) {
557 assert(m);
558
559 if (!success)
560 m->failure = true;
561
562 mount_set_state(m, m->failure ? MOUNT_MAINTENANCE : MOUNT_DEAD);
563 }
564
565 static void mount_enter_mounted(Mount *m, bool success) {
566 assert(m);
567
568 if (!success)
569 m->failure = true;
570
571 mount_set_state(m, MOUNT_MOUNTED);
572 }
573
574 static void mount_enter_signal(Mount *m, MountState state, bool success) {
575 int r;
576 bool sent = false;
577
578 assert(m);
579
580 if (!success)
581 m->failure = true;
582
583 if (m->kill_mode != KILL_NONE) {
584 int sig = (state == MOUNT_MOUNTING_SIGTERM ||
585 state == MOUNT_UNMOUNTING_SIGTERM ||
586 state == MOUNT_REMOUNTING_SIGTERM) ? SIGTERM : SIGKILL;
587
588 if (m->kill_mode == KILL_CONTROL_GROUP) {
589
590 if ((r = cgroup_bonding_kill_list(m->meta.cgroup_bondings, sig)) < 0) {
591 if (r != -EAGAIN && r != -ESRCH)
592 goto fail;
593 } else
594 sent = true;
595 }
596
597 if (!sent && m->control_pid > 0)
598 if (kill(m->kill_mode == KILL_PROCESS ? m->control_pid : -m->control_pid, sig) < 0 && errno != ESRCH) {
599 r = -errno;
600 goto fail;
601 }
602 }
603
604 if (sent) {
605 if ((r = unit_watch_timer(UNIT(m), m->timeout_usec, &m->timer_watch)) < 0)
606 goto fail;
607
608 mount_set_state(m, state);
609 } else if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
610 mount_enter_mounted(m, true);
611 else
612 mount_enter_dead(m, true);
613
614 return;
615
616 fail:
617 log_warning("%s failed to kill processes: %s", m->meta.id, strerror(-r));
618
619 if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
620 mount_enter_mounted(m, false);
621 else
622 mount_enter_dead(m, false);
623 }
624
625 static void mount_enter_unmounting(Mount *m, bool success) {
626 int r;
627
628 assert(m);
629
630 if (!success)
631 m->failure = true;
632
633 m->control_command_id = MOUNT_EXEC_UNMOUNT;
634 m->control_command = m->exec_command + MOUNT_EXEC_UNMOUNT;
635
636 if ((r = exec_command_set(
637 m->control_command,
638 "/bin/umount",
639 m->where,
640 NULL)) < 0)
641 goto fail;
642
643 mount_unwatch_control_pid(m);
644
645 if ((r = mount_spawn(m, m->control_command, &m->control_pid)) < 0)
646 goto fail;
647
648 mount_set_state(m, MOUNT_UNMOUNTING);
649
650 return;
651
652 fail:
653 log_warning("%s failed to run 'umount' task: %s", m->meta.id, strerror(-r));
654 mount_enter_mounted(m, false);
655 }
656
657 static void mount_enter_mounting(Mount *m) {
658 int r;
659
660 assert(m);
661
662 m->control_command_id = MOUNT_EXEC_MOUNT;
663 m->control_command = m->exec_command + MOUNT_EXEC_MOUNT;
664
665 if (m->from_fragment)
666 r = exec_command_set(
667 m->control_command,
668 "/bin/mount",
669 m->parameters_fragment.what,
670 m->where,
671 "-t", m->parameters_fragment.fstype,
672 m->parameters_fragment.options ? "-o" : NULL, m->parameters_fragment.options,
673 NULL);
674 else if (m->from_etc_fstab)
675 r = exec_command_set(
676 m->control_command,
677 "/bin/mount",
678 m->where,
679 NULL);
680 else
681 r = -ENOENT;
682
683 if (r < 0)
684 goto fail;
685
686 mount_unwatch_control_pid(m);
687
688 if ((r = mount_spawn(m, m->control_command, &m->control_pid)) < 0)
689 goto fail;
690
691 mount_set_state(m, MOUNT_MOUNTING);
692
693 return;
694
695 fail:
696 log_warning("%s failed to run 'mount' task: %s", m->meta.id, strerror(-r));
697 mount_enter_dead(m, false);
698 }
699
700 static void mount_enter_mounting_done(Mount *m) {
701 assert(m);
702
703 mount_set_state(m, MOUNT_MOUNTING_DONE);
704 }
705
706 static void mount_enter_remounting(Mount *m, bool success) {
707 int r;
708
709 assert(m);
710
711 if (!success)
712 m->failure = true;
713
714 m->control_command_id = MOUNT_EXEC_REMOUNT;
715 m->control_command = m->exec_command + MOUNT_EXEC_REMOUNT;
716
717 if (m->from_fragment) {
718 char *buf = NULL;
719 const char *o;
720
721 if (m->parameters_fragment.options) {
722 if (!(buf = strappend("remount,", m->parameters_fragment.options))) {
723 r = -ENOMEM;
724 goto fail;
725 }
726
727 o = buf;
728 } else
729 o = "remount";
730
731 r = exec_command_set(
732 m->control_command,
733 "/bin/mount",
734 m->parameters_fragment.what,
735 m->where,
736 "-t", m->parameters_fragment.fstype,
737 "-o", o,
738 NULL);
739
740 free(buf);
741 } else if (m->from_etc_fstab)
742 r = exec_command_set(
743 m->control_command,
744 "/bin/mount",
745 m->where,
746 "-o", "remount",
747 NULL);
748 else
749 r = -ENOENT;
750
751 if (r < 0) {
752 r = -ENOMEM;
753 goto fail;
754 }
755
756 mount_unwatch_control_pid(m);
757
758 if ((r = mount_spawn(m, m->control_command, &m->control_pid)) < 0)
759 goto fail;
760
761 mount_set_state(m, MOUNT_REMOUNTING);
762
763 return;
764
765 fail:
766 mount_enter_mounted(m, false);
767 }
768
769 static int mount_start(Unit *u) {
770 Mount *m = MOUNT(u);
771
772 assert(m);
773
774 /* We cannot fulfill this request right now, try again later
775 * please! */
776 if (m->state == MOUNT_UNMOUNTING ||
777 m->state == MOUNT_UNMOUNTING_SIGTERM ||
778 m->state == MOUNT_UNMOUNTING_SIGKILL)
779 return -EAGAIN;
780
781 /* Already on it! */
782 if (m->state == MOUNT_MOUNTING ||
783 m->state == MOUNT_MOUNTING_SIGTERM ||
784 m->state == MOUNT_MOUNTING_SIGKILL)
785 return 0;
786
787 assert(m->state == MOUNT_DEAD || m->state == MOUNT_MAINTENANCE);
788
789 m->failure = false;
790 mount_enter_mounting(m);
791 return 0;
792 }
793
794 static int mount_stop(Unit *u) {
795 Mount *m = MOUNT(u);
796
797 assert(m);
798
799 /* Cann't do this right now. */
800 if (m->state == MOUNT_MOUNTING ||
801 m->state == MOUNT_MOUNTING_DONE ||
802 m->state == MOUNT_MOUNTING_SIGTERM ||
803 m->state == MOUNT_MOUNTING_SIGKILL ||
804 m->state == MOUNT_REMOUNTING ||
805 m->state == MOUNT_REMOUNTING_SIGTERM ||
806 m->state == MOUNT_REMOUNTING_SIGKILL)
807 return -EAGAIN;
808
809 /* Already on it */
810 if (m->state == MOUNT_UNMOUNTING ||
811 m->state == MOUNT_UNMOUNTING_SIGKILL ||
812 m->state == MOUNT_UNMOUNTING_SIGTERM)
813 return 0;
814
815 assert(m->state == MOUNT_MOUNTED);
816
817 mount_enter_unmounting(m, true);
818 return 0;
819 }
820
821 static int mount_reload(Unit *u) {
822 Mount *m = MOUNT(u);
823
824 assert(m);
825
826 if (m->state == MOUNT_MOUNTING_DONE)
827 return -EAGAIN;
828
829 assert(m->state == MOUNT_MOUNTED);
830
831 mount_enter_remounting(m, true);
832 return 0;
833 }
834
835 static int mount_serialize(Unit *u, FILE *f, FDSet *fds) {
836 Mount *m = MOUNT(u);
837
838 assert(m);
839 assert(f);
840 assert(fds);
841
842 unit_serialize_item(u, f, "state", mount_state_to_string(m->state));
843 unit_serialize_item(u, f, "failure", yes_no(m->failure));
844
845 if (m->control_pid > 0)
846 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) m->control_pid);
847
848 if (m->control_command_id >= 0)
849 unit_serialize_item(u, f, "control-command", mount_exec_command_to_string(m->control_command_id));
850
851 return 0;
852 }
853
854 static int mount_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
855 Mount *m = MOUNT(u);
856 int r;
857
858 assert(u);
859 assert(key);
860 assert(value);
861 assert(fds);
862
863 if (streq(key, "state")) {
864 MountState state;
865
866 if ((state = mount_state_from_string(value)) < 0)
867 log_debug("Failed to parse state value %s", value);
868 else
869 m->deserialized_state = state;
870 } else if (streq(key, "failure")) {
871 int b;
872
873 if ((b = parse_boolean(value)) < 0)
874 log_debug("Failed to parse failure value %s", value);
875 else
876 m->failure = b || m->failure;
877
878 } else if (streq(key, "control-pid")) {
879 pid_t pid;
880
881 if ((r = parse_pid(value, &pid)) < 0)
882 log_debug("Failed to parse control-pid value %s", value);
883 else
884 m->control_pid = pid;
885 } else if (streq(key, "control-command")) {
886 MountExecCommand id;
887
888 if ((id = mount_exec_command_from_string(value)) < 0)
889 log_debug("Failed to parse exec-command value %s", value);
890 else {
891 m->control_command_id = id;
892 m->control_command = m->exec_command + id;
893 }
894
895 } else
896 log_debug("Unknown serialization key '%s'", key);
897
898 return 0;
899 }
900
901 static UnitActiveState mount_active_state(Unit *u) {
902 assert(u);
903
904 return state_translation_table[MOUNT(u)->state];
905 }
906
907 static const char *mount_sub_state_to_string(Unit *u) {
908 assert(u);
909
910 return mount_state_to_string(MOUNT(u)->state);
911 }
912
913 static bool mount_check_gc(Unit *u) {
914 Mount *m = MOUNT(u);
915
916 assert(m);
917
918 return m->from_etc_fstab || m->from_proc_self_mountinfo;
919 }
920
921 static void mount_sigchld_event(Unit *u, pid_t pid, int code, int status) {
922 Mount *m = MOUNT(u);
923 bool success;
924
925 assert(m);
926 assert(pid >= 0);
927
928 if (pid != m->control_pid)
929 return;
930
931 m->control_pid = 0;
932
933 success = is_clean_exit(code, status);
934 m->failure = m->failure || !success;
935
936 if (m->control_command) {
937 exec_status_fill(&m->control_command->exec_status, pid, code, status);
938 m->control_command = NULL;
939 m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
940 }
941
942 log_debug("%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
943
944 /* Note that mount(8) returning and the kernel sending us a
945 * mount table change event might happen out-of-order. If an
946 * operation succeed we assume the kernel will follow soon too
947 * and already change into the resulting state. If it fails
948 * we check if the kernel still knows about the mount. and
949 * change state accordingly. */
950
951 switch (m->state) {
952
953 case MOUNT_MOUNTING:
954 case MOUNT_MOUNTING_DONE:
955 case MOUNT_MOUNTING_SIGKILL:
956 case MOUNT_MOUNTING_SIGTERM:
957 case MOUNT_REMOUNTING:
958 case MOUNT_REMOUNTING_SIGKILL:
959 case MOUNT_REMOUNTING_SIGTERM:
960
961 if (success)
962 mount_enter_mounted(m, true);
963 else if (m->from_proc_self_mountinfo)
964 mount_enter_mounted(m, false);
965 else
966 mount_enter_dead(m, false);
967 break;
968
969 case MOUNT_UNMOUNTING:
970 case MOUNT_UNMOUNTING_SIGKILL:
971 case MOUNT_UNMOUNTING_SIGTERM:
972
973 if (success)
974 mount_enter_dead(m, true);
975 else if (m->from_proc_self_mountinfo)
976 mount_enter_mounted(m, false);
977 else
978 mount_enter_dead(m, false);
979 break;
980
981 default:
982 assert_not_reached("Uh, control process died at wrong time.");
983 }
984 }
985
986 static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
987 Mount *m = MOUNT(u);
988
989 assert(m);
990 assert(elapsed == 1);
991 assert(w == &m->timer_watch);
992
993 switch (m->state) {
994
995 case MOUNT_MOUNTING:
996 case MOUNT_MOUNTING_DONE:
997 log_warning("%s mounting timed out. Stopping.", u->meta.id);
998 mount_enter_signal(m, MOUNT_MOUNTING_SIGTERM, false);
999 break;
1000
1001 case MOUNT_REMOUNTING:
1002 log_warning("%s remounting timed out. Stopping.", u->meta.id);
1003 mount_enter_signal(m, MOUNT_REMOUNTING_SIGTERM, false);
1004 break;
1005
1006 case MOUNT_UNMOUNTING:
1007 log_warning("%s unmounting timed out. Stopping.", u->meta.id);
1008 mount_enter_signal(m, MOUNT_UNMOUNTING_SIGTERM, false);
1009 break;
1010
1011 case MOUNT_MOUNTING_SIGTERM:
1012 log_warning("%s mounting timed out. Killing.", u->meta.id);
1013 mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, false);
1014 break;
1015
1016 case MOUNT_REMOUNTING_SIGTERM:
1017 log_warning("%s remounting timed out. Killing.", u->meta.id);
1018 mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, false);
1019 break;
1020
1021 case MOUNT_UNMOUNTING_SIGTERM:
1022 log_warning("%s unmounting timed out. Killing.", u->meta.id);
1023 mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, false);
1024 break;
1025
1026 case MOUNT_MOUNTING_SIGKILL:
1027 case MOUNT_REMOUNTING_SIGKILL:
1028 case MOUNT_UNMOUNTING_SIGKILL:
1029 log_warning("%s mount process still around after SIGKILL. Ignoring.", u->meta.id);
1030
1031 if (m->from_proc_self_mountinfo)
1032 mount_enter_mounted(m, false);
1033 else
1034 mount_enter_dead(m, false);
1035 break;
1036
1037 default:
1038 assert_not_reached("Timeout at wrong time.");
1039 }
1040 }
1041
1042 static int mount_add_one(
1043 Manager *m,
1044 const char *what,
1045 const char *where,
1046 const char *options,
1047 const char *fstype,
1048 bool from_proc_self_mountinfo,
1049 bool set_flags) {
1050 int r;
1051 Unit *u;
1052 bool delete;
1053 char *e, *w = NULL, *o = NULL, *f = NULL;
1054 MountParameters *p;
1055
1056 assert(m);
1057 assert(what);
1058 assert(where);
1059 assert(options);
1060 assert(fstype);
1061
1062 assert(!set_flags || from_proc_self_mountinfo);
1063
1064 /* Ignore API mount points. They should never be referenced in
1065 * dependencies ever. */
1066 if (mount_point_is_api(where))
1067 return 0;
1068
1069 if (streq(fstype, "autofs"))
1070 return 0;
1071
1072 /* probably some kind of swap, ignore */
1073 if (!is_path(where))
1074 return 0;
1075
1076 if (!(e = unit_name_from_path(where, ".mount")))
1077 return -ENOMEM;
1078
1079 if (!(u = manager_get_unit(m, e))) {
1080 delete = true;
1081
1082 if (!(u = unit_new(m))) {
1083 free(e);
1084 return -ENOMEM;
1085 }
1086
1087 r = unit_add_name(u, e);
1088 free(e);
1089
1090 if (r < 0)
1091 goto fail;
1092
1093 if (!(MOUNT(u)->where = strdup(where))) {
1094 r = -ENOMEM;
1095 goto fail;
1096 }
1097
1098 unit_add_to_load_queue(u);
1099 } else {
1100 delete = false;
1101 free(e);
1102 }
1103
1104 if (!(w = strdup(what)) ||
1105 !(o = strdup(options)) ||
1106 !(f = strdup(fstype))) {
1107 r = -ENOMEM;
1108 goto fail;
1109 }
1110
1111 if (from_proc_self_mountinfo) {
1112 p = &MOUNT(u)->parameters_proc_self_mountinfo;
1113
1114 if (set_flags) {
1115 MOUNT(u)->is_mounted = true;
1116 MOUNT(u)->just_mounted = !MOUNT(u)->from_proc_self_mountinfo;
1117 MOUNT(u)->just_changed = !streq_ptr(p->options, o);
1118 }
1119
1120 MOUNT(u)->from_proc_self_mountinfo = true;
1121 } else {
1122 p = &MOUNT(u)->parameters_etc_fstab;
1123 MOUNT(u)->from_etc_fstab = true;
1124 }
1125
1126 free(p->what);
1127 p->what = w;
1128
1129 free(p->options);
1130 p->options = o;
1131
1132 free(p->fstype);
1133 p->fstype = f;
1134
1135 unit_add_to_dbus_queue(u);
1136
1137 return 0;
1138
1139 fail:
1140 free(w);
1141 free(o);
1142 free(f);
1143
1144 if (delete && u)
1145 unit_free(u);
1146
1147 return r;
1148 }
1149
1150 static char *fstab_node_to_udev_node(char *p) {
1151 char *dn, *t;
1152 int r;
1153
1154 /* FIXME: to follow udev's logic 100% we need to leave valid
1155 * UTF8 chars unescaped */
1156
1157 if (startswith(p, "LABEL=")) {
1158
1159 if (!(t = xescape(p+6, "/ ")))
1160 return NULL;
1161
1162 r = asprintf(&dn, "/dev/disk/by-label/%s", t);
1163 free(t);
1164
1165 if (r < 0)
1166 return NULL;
1167
1168 return dn;
1169 }
1170
1171 if (startswith(p, "UUID=")) {
1172
1173 if (!(t = xescape(p+5, "/ ")))
1174 return NULL;
1175
1176 r = asprintf(&dn, "/dev/disk/by-uuid/%s", ascii_strlower(t));
1177 free(t);
1178
1179 if (r < 0)
1180 return NULL;
1181
1182 return dn;
1183 }
1184
1185 return strdup(p);
1186 }
1187
1188 static int mount_find_pri(char *options) {
1189 char *end, *pri;
1190 unsigned long r;
1191
1192 if (!(pri = mount_test_option(options, "pri=")))
1193 return 0;
1194
1195 pri += 4;
1196
1197 errno = 0;
1198 r = strtoul(pri, &end, 10);
1199
1200 if (errno != 0)
1201 return -errno;
1202
1203 if (end == pri || (*end != ',' && *end != 0))
1204 return -EINVAL;
1205
1206 return (int) r;
1207 }
1208
1209 static int mount_load_etc_fstab(Manager *m) {
1210 FILE *f;
1211 int r;
1212 struct mntent* me;
1213
1214 assert(m);
1215
1216 errno = 0;
1217 if (!(f = setmntent("/etc/fstab", "r")))
1218 return -errno;
1219
1220 while ((me = getmntent(f))) {
1221 char *where, *what;
1222
1223 if (!(what = fstab_node_to_udev_node(me->mnt_fsname))) {
1224 r = -ENOMEM;
1225 goto finish;
1226 }
1227
1228 if (!(where = strdup(me->mnt_dir))) {
1229 free(what);
1230 r = -ENOMEM;
1231 goto finish;
1232 }
1233
1234 if (what[0] == '/')
1235 path_kill_slashes(what);
1236
1237 if (where[0] == '/')
1238 path_kill_slashes(where);
1239
1240 if (streq(me->mnt_type, "swap")) {
1241 int pri;
1242
1243 if ((pri = mount_find_pri(me->mnt_opts)) < 0)
1244 r = pri;
1245 else
1246 r = swap_add_one(m,
1247 what,
1248 pri,
1249 !!mount_test_option(me->mnt_opts, MNTOPT_NOAUTO),
1250 !!mount_test_option(me->mnt_opts, "comment=systemd.swapon"),
1251 false);
1252 } else
1253 r = mount_add_one(m, what, where, me->mnt_opts, me->mnt_type, false, false);
1254
1255 free(what);
1256 free(where);
1257
1258 if (r < 0)
1259 goto finish;
1260 }
1261
1262 r = 0;
1263 finish:
1264
1265 endmntent(f);
1266 return r;
1267 }
1268
1269 static int mount_load_proc_self_mountinfo(Manager *m, bool set_flags) {
1270 int r;
1271 char *device, *path, *options, *options2, *fstype, *d, *p, *o;
1272
1273 assert(m);
1274
1275 rewind(m->proc_self_mountinfo);
1276
1277 for (;;) {
1278 int k;
1279
1280 device = path = options = options2 = fstype = d = p = o = NULL;
1281
1282 if ((k = fscanf(m->proc_self_mountinfo,
1283 "%*s " /* (1) mount id */
1284 "%*s " /* (2) parent id */
1285 "%*s " /* (3) major:minor */
1286 "%*s " /* (4) root */
1287 "%ms " /* (5) mount point */
1288 "%ms" /* (6) mount options */
1289 "%*[^-]" /* (7) optional fields */
1290 "- " /* (8) seperator */
1291 "%ms " /* (9) file system type */
1292 "%ms" /* (10) mount source */
1293 "%ms" /* (11) mount options 2 */
1294 "%*[^\n]", /* some rubbish at the end */
1295 &path,
1296 &options,
1297 &fstype,
1298 &device,
1299 &options2)) != 5) {
1300
1301 if (k == EOF)
1302 break;
1303
1304 r = -EBADMSG;
1305 goto finish;
1306 }
1307
1308 if (asprintf(&o, "%s,%s", options, options2) < 0) {
1309 r = -ENOMEM;
1310 goto finish;
1311 }
1312
1313 if (!(d = cunescape(device)) ||
1314 !(p = cunescape(path))) {
1315 r = -ENOMEM;
1316 goto finish;
1317 }
1318
1319 if ((r = mount_add_one(m, d, p, o, fstype, true, set_flags)) < 0)
1320 goto finish;
1321
1322 free(device);
1323 free(path);
1324 free(options);
1325 free(options2);
1326 free(fstype);
1327 free(d);
1328 free(p);
1329 free(o);
1330 }
1331
1332 r = 0;
1333
1334 finish:
1335 free(device);
1336 free(path);
1337 free(options);
1338 free(options2);
1339 free(fstype);
1340 free(d);
1341 free(p);
1342 free(o);
1343
1344 return r;
1345 }
1346
1347 static void mount_shutdown(Manager *m) {
1348 assert(m);
1349
1350 if (m->proc_self_mountinfo) {
1351 fclose(m->proc_self_mountinfo);
1352 m->proc_self_mountinfo = NULL;
1353 }
1354 }
1355
1356 static int mount_enumerate(Manager *m) {
1357 int r;
1358 struct epoll_event ev;
1359 assert(m);
1360
1361 if (!m->proc_self_mountinfo) {
1362 if (!(m->proc_self_mountinfo = fopen("/proc/self/mountinfo", "re")))
1363 return -errno;
1364
1365 m->mount_watch.type = WATCH_MOUNT;
1366 m->mount_watch.fd = fileno(m->proc_self_mountinfo);
1367
1368 zero(ev);
1369 ev.events = EPOLLERR;
1370 ev.data.ptr = &m->mount_watch;
1371
1372 if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->mount_watch.fd, &ev) < 0)
1373 return -errno;
1374 }
1375
1376 if ((r = mount_load_etc_fstab(m)) < 0)
1377 goto fail;
1378
1379 if ((r = mount_load_proc_self_mountinfo(m, false)) < 0)
1380 goto fail;
1381
1382 return 0;
1383
1384 fail:
1385 mount_shutdown(m);
1386 return r;
1387 }
1388
1389 void mount_fd_event(Manager *m, int events) {
1390 Meta *meta;
1391 int r;
1392
1393 assert(m);
1394 assert(events == EPOLLERR);
1395
1396 /* The manager calls this for every fd event happening on the
1397 * /proc/self/mountinfo file, which informs us about mounting
1398 * table changes */
1399
1400 if ((r = mount_load_proc_self_mountinfo(m, true)) < 0) {
1401 log_error("Failed to reread /proc/self/mountinfo: %s", strerror(errno));
1402
1403 /* Reset flags, just in case, for later calls */
1404 LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_MOUNT]) {
1405 Mount *mount = (Mount*) meta;
1406
1407 mount->is_mounted = mount->just_mounted = mount->just_changed = false;
1408 }
1409
1410 return;
1411 }
1412
1413 manager_dispatch_load_queue(m);
1414
1415 LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_MOUNT]) {
1416 Mount *mount = (Mount*) meta;
1417
1418 if (!mount->is_mounted) {
1419 /* This has just been unmounted. */
1420
1421 mount->from_proc_self_mountinfo = false;
1422
1423 switch (mount->state) {
1424
1425 case MOUNT_MOUNTED:
1426 mount_enter_dead(mount, true);
1427 break;
1428
1429 default:
1430 mount_set_state(mount, mount->state);
1431 break;
1432
1433 }
1434
1435 } else if (mount->just_mounted || mount->just_changed) {
1436
1437 /* New or changed entrymount */
1438
1439 switch (mount->state) {
1440
1441 case MOUNT_DEAD:
1442 case MOUNT_MAINTENANCE:
1443 mount_enter_mounted(mount, true);
1444 break;
1445
1446 case MOUNT_MOUNTING:
1447 mount_enter_mounting_done(mount);
1448 break;
1449
1450 default:
1451 /* Nothing really changed, but let's
1452 * issue an notification call
1453 * nonetheless, in case somebody is
1454 * waiting for this. (e.g. file system
1455 * ro/rw remounts.) */
1456 mount_set_state(mount, mount->state);
1457 break;
1458 }
1459 }
1460
1461 /* Reset the flags for later calls */
1462 mount->is_mounted = mount->just_mounted = mount->just_changed = false;
1463 }
1464 }
1465
1466 int mount_path_is_mounted(Manager *m, const char* path) {
1467 char *t;
1468 int r;
1469
1470 assert(m);
1471 assert(path);
1472
1473 if (path[0] != '/')
1474 return 1;
1475
1476 if (!(t = strdup(path)))
1477 return -ENOMEM;
1478
1479 path_kill_slashes(t);
1480
1481 for (;;) {
1482 char *e, *slash;
1483 Unit *u;
1484
1485 if (!(e = unit_name_from_path(t, ".mount"))) {
1486 r = -ENOMEM;
1487 goto finish;
1488 }
1489
1490 u = manager_get_unit(m, e);
1491 free(e);
1492
1493 if (u &&
1494 (MOUNT(u)->from_etc_fstab || MOUNT(u)->from_fragment) &&
1495 MOUNT(u)->state != MOUNT_MOUNTED) {
1496 r = 0;
1497 goto finish;
1498 }
1499
1500 assert_se(slash = strrchr(t, '/'));
1501
1502 if (slash == t) {
1503 r = 1;
1504 goto finish;
1505 }
1506
1507 *slash = 0;
1508 }
1509
1510 r = 1;
1511
1512 finish:
1513 free(t);
1514 return r;
1515 }
1516
1517 static const char* const mount_state_table[_MOUNT_STATE_MAX] = {
1518 [MOUNT_DEAD] = "dead",
1519 [MOUNT_MOUNTING] = "mounting",
1520 [MOUNT_MOUNTING_DONE] = "mounting-done",
1521 [MOUNT_MOUNTED] = "mounted",
1522 [MOUNT_REMOUNTING] = "remounting",
1523 [MOUNT_UNMOUNTING] = "unmounting",
1524 [MOUNT_MOUNTING_SIGTERM] = "mounting-sigterm",
1525 [MOUNT_MOUNTING_SIGKILL] = "mounting-sigkill",
1526 [MOUNT_REMOUNTING_SIGTERM] = "remounting-sigterm",
1527 [MOUNT_REMOUNTING_SIGKILL] = "remounting-sigkill",
1528 [MOUNT_UNMOUNTING_SIGTERM] = "unmounting-sigterm",
1529 [MOUNT_UNMOUNTING_SIGKILL] = "unmounting-sigkill",
1530 [MOUNT_MAINTENANCE] = "maintenance"
1531 };
1532
1533 DEFINE_STRING_TABLE_LOOKUP(mount_state, MountState);
1534
1535 static const char* const mount_exec_command_table[_MOUNT_EXEC_COMMAND_MAX] = {
1536 [MOUNT_EXEC_MOUNT] = "ExecMount",
1537 [MOUNT_EXEC_UNMOUNT] = "ExecUnmount",
1538 [MOUNT_EXEC_REMOUNT] = "ExecRemount",
1539 };
1540
1541 DEFINE_STRING_TABLE_LOOKUP(mount_exec_command, MountExecCommand);
1542
1543 const UnitVTable mount_vtable = {
1544 .suffix = ".mount",
1545
1546 .no_alias = true,
1547 .no_instances = true,
1548 .no_isolate = true,
1549
1550 .init = mount_init,
1551 .load = mount_load,
1552 .done = mount_done,
1553
1554 .coldplug = mount_coldplug,
1555
1556 .dump = mount_dump,
1557
1558 .start = mount_start,
1559 .stop = mount_stop,
1560 .reload = mount_reload,
1561
1562 .serialize = mount_serialize,
1563 .deserialize_item = mount_deserialize_item,
1564
1565 .active_state = mount_active_state,
1566 .sub_state_to_string = mount_sub_state_to_string,
1567
1568 .check_gc = mount_check_gc,
1569
1570 .sigchld_event = mount_sigchld_event,
1571 .timer_event = mount_timer_event,
1572
1573 .bus_message_handler = bus_mount_message_handler,
1574
1575 .enumerate = mount_enumerate,
1576 .shutdown = mount_shutdown
1577 };
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