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