Line data Source code
1 : /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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 Lesser General Public License as published by
10 : the Free Software Foundation; either version 2.1 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 : Lesser General Public License for more details.
17 :
18 : You should have received a copy of the GNU Lesser 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 <sys/epoll.h>
25 : #include <signal.h>
26 : #include <libmount.h>
27 : #include <sys/inotify.h>
28 :
29 : #include "manager.h"
30 : #include "unit.h"
31 : #include "mount.h"
32 : #include "log.h"
33 : #include "sd-messages.h"
34 : #include "strv.h"
35 : #include "mkdir.h"
36 : #include "path-util.h"
37 : #include "mount-setup.h"
38 : #include "unit-name.h"
39 : #include "dbus-mount.h"
40 : #include "special.h"
41 : #include "exit-status.h"
42 : #include "fstab-util.h"
43 : #include "formats-util.h"
44 :
45 : #define RETRY_UMOUNT_MAX 32
46 :
47 10 : DEFINE_TRIVIAL_CLEANUP_FUNC(struct libmnt_table*, mnt_free_table);
48 10 : DEFINE_TRIVIAL_CLEANUP_FUNC(struct libmnt_iter*, mnt_free_iter);
49 :
50 : static const UnitActiveState state_translation_table[_MOUNT_STATE_MAX] = {
51 : [MOUNT_DEAD] = UNIT_INACTIVE,
52 : [MOUNT_MOUNTING] = UNIT_ACTIVATING,
53 : [MOUNT_MOUNTING_DONE] = UNIT_ACTIVE,
54 : [MOUNT_MOUNTED] = UNIT_ACTIVE,
55 : [MOUNT_REMOUNTING] = UNIT_RELOADING,
56 : [MOUNT_UNMOUNTING] = UNIT_DEACTIVATING,
57 : [MOUNT_MOUNTING_SIGTERM] = UNIT_DEACTIVATING,
58 : [MOUNT_MOUNTING_SIGKILL] = UNIT_DEACTIVATING,
59 : [MOUNT_REMOUNTING_SIGTERM] = UNIT_RELOADING,
60 : [MOUNT_REMOUNTING_SIGKILL] = UNIT_RELOADING,
61 : [MOUNT_UNMOUNTING_SIGTERM] = UNIT_DEACTIVATING,
62 : [MOUNT_UNMOUNTING_SIGKILL] = UNIT_DEACTIVATING,
63 : [MOUNT_FAILED] = UNIT_FAILED
64 : };
65 :
66 : static int mount_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata);
67 : static int mount_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata);
68 :
69 0 : static bool mount_needs_network(const char *options, const char *fstype) {
70 0 : if (fstab_test_option(options, "_netdev\0"))
71 0 : return true;
72 :
73 0 : if (fstype && fstype_is_network(fstype))
74 0 : return true;
75 :
76 0 : return false;
77 : }
78 :
79 0 : static bool mount_is_network(const MountParameters *p) {
80 0 : assert(p);
81 :
82 0 : return mount_needs_network(p->options, p->fstype);
83 : }
84 :
85 80 : static bool mount_is_bind(const MountParameters *p) {
86 80 : assert(p);
87 :
88 80 : if (fstab_test_option(p->options, "bind\0" "rbind\0"))
89 0 : return true;
90 :
91 80 : if (p->fstype && STR_IN_SET(p->fstype, "bind", "rbind"))
92 0 : return true;
93 :
94 80 : return false;
95 : }
96 :
97 0 : static bool mount_is_auto(const MountParameters *p) {
98 0 : assert(p);
99 :
100 0 : return !fstab_test_option(p->options, "noauto\0");
101 : }
102 :
103 0 : static bool needs_quota(const MountParameters *p) {
104 0 : assert(p);
105 :
106 : /* Quotas are not enabled on network filesystems,
107 : * but we want them, for example, on storage connected via iscsi */
108 0 : if (p->fstype && fstype_is_network(p->fstype))
109 0 : return false;
110 :
111 0 : if (mount_is_bind(p))
112 0 : return false;
113 :
114 0 : return fstab_test_option(p->options,
115 : "usrquota\0" "grpquota\0" "quota\0" "usrjquota\0" "grpjquota\0");
116 : }
117 :
118 80 : static void mount_init(Unit *u) {
119 80 : Mount *m = MOUNT(u);
120 :
121 80 : assert(u);
122 80 : assert(u->load_state == UNIT_STUB);
123 :
124 80 : m->timeout_usec = u->manager->default_timeout_start_usec;
125 80 : m->directory_mode = 0755;
126 :
127 80 : if (unit_has_name(u, "-.mount")) {
128 : /* Don't allow start/stop for root directory */
129 10 : u->refuse_manual_start = true;
130 10 : u->refuse_manual_stop = true;
131 : } else {
132 : /* The stdio/kmsg bridge socket is on /, in order to avoid a
133 : * dep loop, don't use kmsg logging for -.mount */
134 70 : m->exec_context.std_output = u->manager->default_std_output;
135 70 : m->exec_context.std_error = u->manager->default_std_error;
136 : }
137 :
138 : /* We need to make sure that /usr/bin/mount is always called
139 : * in the same process group as us, so that the autofs kernel
140 : * side doesn't send us another mount request while we are
141 : * already trying to comply its last one. */
142 80 : m->exec_context.same_pgrp = true;
143 :
144 80 : m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
145 :
146 80 : u->ignore_on_isolate = true;
147 80 : }
148 :
149 0 : static int mount_arm_timer(Mount *m) {
150 : int r;
151 :
152 0 : assert(m);
153 :
154 0 : if (m->timeout_usec <= 0) {
155 0 : m->timer_event_source = sd_event_source_unref(m->timer_event_source);
156 0 : return 0;
157 : }
158 :
159 0 : if (m->timer_event_source) {
160 0 : r = sd_event_source_set_time(m->timer_event_source, now(CLOCK_MONOTONIC) + m->timeout_usec);
161 0 : if (r < 0)
162 0 : return r;
163 :
164 0 : return sd_event_source_set_enabled(m->timer_event_source, SD_EVENT_ONESHOT);
165 : }
166 :
167 0 : r = sd_event_add_time(
168 0 : UNIT(m)->manager->event,
169 : &m->timer_event_source,
170 : CLOCK_MONOTONIC,
171 0 : now(CLOCK_MONOTONIC) + m->timeout_usec, 0,
172 : mount_dispatch_timer, m);
173 0 : if (r < 0)
174 0 : return r;
175 :
176 0 : (void) sd_event_source_set_description(m->timer_event_source, "mount-timer");
177 :
178 0 : return 0;
179 : }
180 :
181 160 : static void mount_unwatch_control_pid(Mount *m) {
182 160 : assert(m);
183 :
184 160 : if (m->control_pid <= 0)
185 160 : return;
186 :
187 0 : unit_unwatch_pid(UNIT(m), m->control_pid);
188 0 : m->control_pid = 0;
189 : }
190 :
191 160 : static void mount_parameters_done(MountParameters *p) {
192 160 : assert(p);
193 :
194 160 : free(p->what);
195 160 : free(p->options);
196 160 : free(p->fstype);
197 :
198 160 : p->what = p->options = p->fstype = NULL;
199 160 : }
200 :
201 80 : static void mount_done(Unit *u) {
202 80 : Mount *m = MOUNT(u);
203 :
204 80 : assert(m);
205 :
206 80 : free(m->where);
207 80 : m->where = NULL;
208 :
209 80 : mount_parameters_done(&m->parameters_proc_self_mountinfo);
210 80 : mount_parameters_done(&m->parameters_fragment);
211 :
212 80 : m->exec_runtime = exec_runtime_unref(m->exec_runtime);
213 80 : exec_command_done_array(m->exec_command, _MOUNT_EXEC_COMMAND_MAX);
214 80 : m->control_command = NULL;
215 :
216 80 : mount_unwatch_control_pid(m);
217 :
218 80 : m->timer_event_source = sd_event_source_unref(m->timer_event_source);
219 80 : }
220 :
221 80 : _pure_ static MountParameters* get_mount_parameters_fragment(Mount *m) {
222 80 : assert(m);
223 :
224 80 : if (m->from_fragment)
225 0 : return &m->parameters_fragment;
226 :
227 80 : return NULL;
228 : }
229 :
230 112 : _pure_ static MountParameters* get_mount_parameters(Mount *m) {
231 112 : assert(m);
232 :
233 112 : if (m->from_proc_self_mountinfo)
234 112 : return &m->parameters_proc_self_mountinfo;
235 :
236 0 : return get_mount_parameters_fragment(m);
237 : }
238 :
239 80 : static int mount_add_mount_links(Mount *m) {
240 160 : _cleanup_free_ char *parent = NULL;
241 : MountParameters *pm;
242 : Unit *other;
243 : Iterator i;
244 : Set *s;
245 : int r;
246 :
247 80 : assert(m);
248 :
249 80 : if (!path_equal(m->where, "/")) {
250 : /* Adds in links to other mount points that might lie further
251 : * up in the hierarchy */
252 70 : r = path_get_parent(m->where, &parent);
253 70 : if (r < 0)
254 0 : return r;
255 :
256 70 : r = unit_require_mounts_for(UNIT(m), parent);
257 70 : if (r < 0)
258 0 : return r;
259 : }
260 :
261 : /* Adds in links to other mount points that might be needed
262 : * for the source path (if this is a bind mount) to be
263 : * available. */
264 80 : pm = get_mount_parameters_fragment(m);
265 80 : if (pm && pm->what &&
266 0 : path_is_absolute(pm->what) &&
267 0 : !mount_is_network(pm)) {
268 :
269 0 : r = unit_require_mounts_for(UNIT(m), pm->what);
270 0 : if (r < 0)
271 0 : return r;
272 : }
273 :
274 : /* Adds in links to other units that use this path or paths
275 : * further down in the hierarchy */
276 80 : s = manager_get_units_requiring_mounts_for(UNIT(m)->manager, m->where);
277 240 : SET_FOREACH(other, s, i) {
278 :
279 80 : if (other->load_state != UNIT_LOADED)
280 0 : continue;
281 :
282 80 : if (other == UNIT(m))
283 0 : continue;
284 :
285 80 : r = unit_add_dependency(other, UNIT_AFTER, UNIT(m), true);
286 80 : if (r < 0)
287 0 : return r;
288 :
289 80 : if (UNIT(m)->fragment_path) {
290 : /* If we have fragment configuration, then make this dependency required */
291 0 : r = unit_add_dependency(other, UNIT_REQUIRES, UNIT(m), true);
292 0 : if (r < 0)
293 0 : return r;
294 : }
295 : }
296 :
297 80 : return 0;
298 : }
299 :
300 80 : static int mount_add_device_links(Mount *m) {
301 : MountParameters *p;
302 80 : bool device_wants_mount = false;
303 : int r;
304 :
305 80 : assert(m);
306 :
307 80 : p = get_mount_parameters(m);
308 80 : if (!p)
309 0 : return 0;
310 :
311 80 : if (!p->what)
312 0 : return 0;
313 :
314 80 : if (mount_is_bind(p))
315 0 : return 0;
316 :
317 80 : if (!is_device_path(p->what))
318 70 : return 0;
319 :
320 : /* /dev/root is a really weird thing, it's not a real device,
321 : * but just a path the kernel exports for the root file system
322 : * specified on the kernel command line. Ignore it here. */
323 10 : if (path_equal(p->what, "/dev/root"))
324 0 : return 0;
325 :
326 10 : if (path_equal(m->where, "/"))
327 10 : return 0;
328 :
329 0 : if (mount_is_auto(p) && UNIT(m)->manager->running_as == MANAGER_SYSTEM)
330 0 : device_wants_mount = true;
331 :
332 0 : r = unit_add_node_link(UNIT(m), p->what, device_wants_mount);
333 0 : if (r < 0)
334 0 : return r;
335 :
336 0 : return 0;
337 : }
338 :
339 80 : static int mount_add_quota_links(Mount *m) {
340 : int r;
341 : MountParameters *p;
342 :
343 80 : assert(m);
344 :
345 80 : if (UNIT(m)->manager->running_as != MANAGER_SYSTEM)
346 80 : return 0;
347 :
348 0 : p = get_mount_parameters_fragment(m);
349 0 : if (!p)
350 0 : return 0;
351 :
352 0 : if (!needs_quota(p))
353 0 : return 0;
354 :
355 0 : r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_WANTS, SPECIAL_QUOTACHECK_SERVICE, NULL, true);
356 0 : if (r < 0)
357 0 : return r;
358 :
359 0 : r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_WANTS, SPECIAL_QUOTAON_SERVICE, NULL, true);
360 0 : if (r < 0)
361 0 : return r;
362 :
363 0 : return 0;
364 : }
365 :
366 0 : static bool should_umount(Mount *m) {
367 : MountParameters *p;
368 :
369 0 : if (path_equal(m->where, "/") ||
370 0 : path_equal(m->where, "/usr"))
371 0 : return false;
372 :
373 0 : p = get_mount_parameters(m);
374 0 : if (p && fstab_test_option(p->options, "x-initrd.mount\0") &&
375 0 : !in_initrd())
376 0 : return false;
377 :
378 0 : return true;
379 : }
380 :
381 80 : static int mount_add_default_dependencies(Mount *m) {
382 : const char *after, *after2, *online;
383 : MountParameters *p;
384 : int r;
385 :
386 80 : assert(m);
387 :
388 80 : if (UNIT(m)->manager->running_as != MANAGER_SYSTEM)
389 80 : return 0;
390 :
391 : /* We do not add any default dependencies to / and /usr, since
392 : * they are guaranteed to stay mounted the whole time, since
393 : * our system is on it. Also, don't bother with anything
394 : * mounted below virtual file systems, it's also going to be
395 : * virtual, and hence not worth the effort. */
396 0 : if (path_equal(m->where, "/") ||
397 0 : path_equal(m->where, "/usr") ||
398 0 : path_startswith(m->where, "/proc") ||
399 0 : path_startswith(m->where, "/sys") ||
400 0 : path_startswith(m->where, "/dev"))
401 0 : return 0;
402 :
403 0 : p = get_mount_parameters(m);
404 0 : if (!p)
405 0 : return 0;
406 :
407 0 : if (mount_is_network(p)) {
408 0 : after = SPECIAL_REMOTE_FS_PRE_TARGET;
409 0 : after2 = SPECIAL_NETWORK_TARGET;
410 0 : online = SPECIAL_NETWORK_ONLINE_TARGET;
411 : } else {
412 0 : after = SPECIAL_LOCAL_FS_PRE_TARGET;
413 0 : after2 = NULL;
414 0 : online = NULL;
415 : }
416 :
417 0 : r = unit_add_dependency_by_name(UNIT(m), UNIT_AFTER, after, NULL, true);
418 0 : if (r < 0)
419 0 : return r;
420 :
421 0 : if (after2) {
422 0 : r = unit_add_dependency_by_name(UNIT(m), UNIT_AFTER, after2, NULL, true);
423 0 : if (r < 0)
424 0 : return r;
425 : }
426 :
427 0 : if (online) {
428 0 : r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_WANTS, UNIT_AFTER, online, NULL, true);
429 0 : if (r < 0)
430 0 : return r;
431 : }
432 :
433 0 : if (should_umount(m)) {
434 0 : r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
435 0 : if (r < 0)
436 0 : return r;
437 : }
438 :
439 0 : return 0;
440 : }
441 :
442 80 : static int mount_verify(Mount *m) {
443 160 : _cleanup_free_ char *e = NULL;
444 : int r;
445 :
446 80 : assert(m);
447 :
448 80 : if (UNIT(m)->load_state != UNIT_LOADED)
449 0 : return 0;
450 :
451 80 : if (!m->from_fragment && !m->from_proc_self_mountinfo)
452 0 : return -ENOENT;
453 :
454 80 : r = unit_name_from_path(m->where, ".mount", &e);
455 80 : if (r < 0)
456 0 : return log_unit_error_errno(UNIT(m), r, "Failed to generate unit name from mount path: %m");
457 :
458 80 : if (!unit_has_name(UNIT(m), e)) {
459 0 : log_unit_error(UNIT(m), "Where= setting doesn't match unit name. Refusing.");
460 0 : return -EINVAL;
461 : }
462 :
463 80 : if (mount_point_is_api(m->where) || mount_point_ignore(m->where)) {
464 0 : log_unit_error(UNIT(m), "Cannot create mount unit for API file system %s. Refusing.", m->where);
465 0 : return -EINVAL;
466 : }
467 :
468 80 : if (UNIT(m)->fragment_path && !m->parameters_fragment.what) {
469 0 : log_unit_error(UNIT(m), "What= setting is missing. Refusing.");
470 0 : return -EBADMSG;
471 : }
472 :
473 80 : if (m->exec_context.pam_name && m->kill_context.kill_mode != KILL_CONTROL_GROUP) {
474 0 : log_unit_error(UNIT(m), "Unit has PAM enabled. Kill mode must be set to control-group'. Refusing.");
475 0 : return -EINVAL;
476 : }
477 :
478 80 : return 0;
479 : }
480 :
481 80 : static int mount_add_extras(Mount *m) {
482 80 : Unit *u = UNIT(m);
483 : int r;
484 :
485 80 : assert(m);
486 :
487 80 : if (u->fragment_path)
488 0 : m->from_fragment = true;
489 :
490 80 : if (!m->where) {
491 0 : r = unit_name_to_path(u->id, &m->where);
492 0 : if (r < 0)
493 0 : return r;
494 : }
495 :
496 80 : path_kill_slashes(m->where);
497 :
498 80 : if (!u->description) {
499 80 : r = unit_set_description(u, m->where);
500 80 : if (r < 0)
501 0 : return r;
502 : }
503 :
504 80 : r = mount_add_device_links(m);
505 80 : if (r < 0)
506 0 : return r;
507 :
508 80 : r = mount_add_mount_links(m);
509 80 : if (r < 0)
510 0 : return r;
511 :
512 80 : r = mount_add_quota_links(m);
513 80 : if (r < 0)
514 0 : return r;
515 :
516 80 : r = unit_patch_contexts(u);
517 80 : if (r < 0)
518 0 : return r;
519 :
520 80 : r = unit_add_exec_dependencies(u, &m->exec_context);
521 80 : if (r < 0)
522 0 : return r;
523 :
524 80 : r = unit_add_default_slice(u, &m->cgroup_context);
525 80 : if (r < 0)
526 0 : return r;
527 :
528 80 : if (u->default_dependencies) {
529 80 : r = mount_add_default_dependencies(m);
530 80 : if (r < 0)
531 0 : return r;
532 : }
533 :
534 80 : return 0;
535 : }
536 :
537 80 : static int mount_load(Unit *u) {
538 80 : Mount *m = MOUNT(u);
539 : int r;
540 :
541 80 : assert(u);
542 80 : assert(u->load_state == UNIT_STUB);
543 :
544 80 : if (m->from_proc_self_mountinfo)
545 80 : r = unit_load_fragment_and_dropin_optional(u);
546 : else
547 0 : r = unit_load_fragment_and_dropin(u);
548 :
549 80 : if (r < 0)
550 0 : return r;
551 :
552 : /* This is a new unit? Then let's add in some extras */
553 80 : if (u->load_state == UNIT_LOADED) {
554 80 : r = mount_add_extras(m);
555 80 : if (r < 0)
556 0 : return r;
557 : }
558 :
559 80 : return mount_verify(m);
560 : }
561 :
562 80 : static int mount_notify_automount(Mount *m, MountState old_state, MountState state) {
563 : Unit *p;
564 : int r;
565 : Iterator i;
566 :
567 80 : assert(m);
568 :
569 160 : SET_FOREACH(p, UNIT(m)->dependencies[UNIT_TRIGGERED_BY], i)
570 0 : if (p->type == UNIT_AUTOMOUNT) {
571 0 : r = automount_update_mount(AUTOMOUNT(p), old_state, state);
572 0 : if (r < 0)
573 0 : return r;
574 : }
575 :
576 80 : return 0;
577 : }
578 :
579 80 : static void mount_set_state(Mount *m, MountState state) {
580 : MountState old_state;
581 80 : assert(m);
582 :
583 80 : old_state = m->state;
584 80 : m->state = state;
585 :
586 80 : if (state != MOUNT_MOUNTING &&
587 80 : state != MOUNT_MOUNTING_DONE &&
588 80 : state != MOUNT_REMOUNTING &&
589 80 : state != MOUNT_UNMOUNTING &&
590 80 : state != MOUNT_MOUNTING_SIGTERM &&
591 80 : state != MOUNT_MOUNTING_SIGKILL &&
592 80 : state != MOUNT_UNMOUNTING_SIGTERM &&
593 80 : state != MOUNT_UNMOUNTING_SIGKILL &&
594 80 : state != MOUNT_REMOUNTING_SIGTERM &&
595 : state != MOUNT_REMOUNTING_SIGKILL) {
596 80 : m->timer_event_source = sd_event_source_unref(m->timer_event_source);
597 80 : mount_unwatch_control_pid(m);
598 80 : m->control_command = NULL;
599 80 : m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
600 : }
601 :
602 80 : mount_notify_automount(m, old_state, state);
603 :
604 80 : if (state != old_state)
605 80 : log_unit_debug(UNIT(m), "Changed %s -> %s", mount_state_to_string(old_state), mount_state_to_string(state));
606 :
607 80 : unit_notify(UNIT(m), state_translation_table[old_state], state_translation_table[state], m->reload_result == MOUNT_SUCCESS);
608 80 : m->reload_result = MOUNT_SUCCESS;
609 80 : }
610 :
611 80 : static int mount_coldplug(Unit *u) {
612 80 : Mount *m = MOUNT(u);
613 80 : MountState new_state = MOUNT_DEAD;
614 : int r;
615 :
616 80 : assert(m);
617 80 : assert(m->state == MOUNT_DEAD);
618 :
619 80 : if (m->deserialized_state != m->state)
620 0 : new_state = m->deserialized_state;
621 80 : else if (m->from_proc_self_mountinfo)
622 80 : new_state = MOUNT_MOUNTED;
623 :
624 80 : if (new_state == m->state)
625 0 : return 0;
626 :
627 80 : if (new_state == MOUNT_MOUNTING ||
628 80 : new_state == MOUNT_MOUNTING_DONE ||
629 80 : new_state == MOUNT_REMOUNTING ||
630 80 : new_state == MOUNT_UNMOUNTING ||
631 80 : new_state == MOUNT_MOUNTING_SIGTERM ||
632 80 : new_state == MOUNT_MOUNTING_SIGKILL ||
633 80 : new_state == MOUNT_UNMOUNTING_SIGTERM ||
634 80 : new_state == MOUNT_UNMOUNTING_SIGKILL ||
635 80 : new_state == MOUNT_REMOUNTING_SIGTERM ||
636 : new_state == MOUNT_REMOUNTING_SIGKILL) {
637 :
638 0 : if (m->control_pid <= 0)
639 0 : return -EBADMSG;
640 :
641 0 : r = unit_watch_pid(UNIT(m), m->control_pid);
642 0 : if (r < 0)
643 0 : return r;
644 :
645 0 : r = mount_arm_timer(m);
646 0 : if (r < 0)
647 0 : return r;
648 : }
649 :
650 80 : mount_set_state(m, new_state);
651 80 : return 0;
652 : }
653 :
654 32 : static void mount_dump(Unit *u, FILE *f, const char *prefix) {
655 32 : Mount *m = MOUNT(u);
656 : MountParameters *p;
657 :
658 32 : assert(m);
659 32 : assert(f);
660 :
661 32 : p = get_mount_parameters(m);
662 :
663 192 : fprintf(f,
664 : "%sMount State: %s\n"
665 : "%sResult: %s\n"
666 : "%sWhere: %s\n"
667 : "%sWhat: %s\n"
668 : "%sFile System Type: %s\n"
669 : "%sOptions: %s\n"
670 : "%sFrom /proc/self/mountinfo: %s\n"
671 : "%sFrom fragment: %s\n"
672 : "%sDirectoryMode: %04o\n",
673 : prefix, mount_state_to_string(m->state),
674 : prefix, mount_result_to_string(m->result),
675 : prefix, m->where,
676 32 : prefix, p ? strna(p->what) : "n/a",
677 32 : prefix, p ? strna(p->fstype) : "n/a",
678 32 : prefix, p ? strna(p->options) : "n/a",
679 32 : prefix, yes_no(m->from_proc_self_mountinfo),
680 32 : prefix, yes_no(m->from_fragment),
681 : prefix, m->directory_mode);
682 :
683 32 : if (m->control_pid > 0)
684 0 : fprintf(f,
685 : "%sControl PID: "PID_FMT"\n",
686 : prefix, m->control_pid);
687 :
688 32 : exec_context_dump(&m->exec_context, f, prefix);
689 32 : kill_context_dump(&m->kill_context, f, prefix);
690 32 : }
691 :
692 0 : static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
693 : pid_t pid;
694 : int r;
695 0 : ExecParameters exec_params = {
696 : .apply_permissions = true,
697 : .apply_chroot = true,
698 : .apply_tty_stdin = true,
699 : .bus_endpoint_fd = -1,
700 : };
701 :
702 0 : assert(m);
703 0 : assert(c);
704 0 : assert(_pid);
705 :
706 0 : (void) unit_realize_cgroup(UNIT(m));
707 0 : if (m->reset_cpu_usage) {
708 0 : (void) unit_reset_cpu_usage(UNIT(m));
709 0 : m->reset_cpu_usage = false;
710 : }
711 :
712 0 : r = unit_setup_exec_runtime(UNIT(m));
713 0 : if (r < 0)
714 0 : goto fail;
715 :
716 0 : r = mount_arm_timer(m);
717 0 : if (r < 0)
718 0 : goto fail;
719 :
720 0 : exec_params.environment = UNIT(m)->manager->environment;
721 0 : exec_params.confirm_spawn = UNIT(m)->manager->confirm_spawn;
722 0 : exec_params.cgroup_supported = UNIT(m)->manager->cgroup_supported;
723 0 : exec_params.cgroup_path = UNIT(m)->cgroup_path;
724 0 : exec_params.cgroup_delegate = m->cgroup_context.delegate;
725 0 : exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(m)->manager);
726 :
727 0 : r = exec_spawn(UNIT(m),
728 : c,
729 0 : &m->exec_context,
730 : &exec_params,
731 : m->exec_runtime,
732 : &pid);
733 0 : if (r < 0)
734 0 : goto fail;
735 :
736 0 : r = unit_watch_pid(UNIT(m), pid);
737 0 : if (r < 0)
738 : /* FIXME: we need to do something here */
739 0 : goto fail;
740 :
741 0 : *_pid = pid;
742 :
743 0 : return 0;
744 :
745 : fail:
746 0 : m->timer_event_source = sd_event_source_unref(m->timer_event_source);
747 :
748 0 : return r;
749 : }
750 :
751 0 : static void mount_enter_dead(Mount *m, MountResult f) {
752 0 : assert(m);
753 :
754 0 : if (f != MOUNT_SUCCESS)
755 0 : m->result = f;
756 :
757 0 : exec_runtime_destroy(m->exec_runtime);
758 0 : m->exec_runtime = exec_runtime_unref(m->exec_runtime);
759 :
760 0 : exec_context_destroy_runtime_directory(&m->exec_context, manager_get_runtime_prefix(UNIT(m)->manager));
761 :
762 0 : mount_set_state(m, m->result != MOUNT_SUCCESS ? MOUNT_FAILED : MOUNT_DEAD);
763 0 : }
764 :
765 0 : static void mount_enter_mounted(Mount *m, MountResult f) {
766 0 : assert(m);
767 :
768 0 : if (f != MOUNT_SUCCESS)
769 0 : m->result = f;
770 :
771 0 : mount_set_state(m, MOUNT_MOUNTED);
772 0 : }
773 :
774 0 : static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
775 : int r;
776 :
777 0 : assert(m);
778 :
779 0 : if (f != MOUNT_SUCCESS)
780 0 : m->result = f;
781 :
782 0 : r = unit_kill_context(
783 : UNIT(m),
784 : &m->kill_context,
785 0 : (state != MOUNT_MOUNTING_SIGTERM && state != MOUNT_UNMOUNTING_SIGTERM && state != MOUNT_REMOUNTING_SIGTERM) ?
786 0 : KILL_KILL : KILL_TERMINATE,
787 : -1,
788 : m->control_pid,
789 : false);
790 0 : if (r < 0)
791 0 : goto fail;
792 :
793 0 : if (r > 0) {
794 0 : r = mount_arm_timer(m);
795 0 : if (r < 0)
796 0 : goto fail;
797 :
798 0 : mount_set_state(m, state);
799 0 : } else if (state == MOUNT_REMOUNTING_SIGTERM)
800 0 : mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, MOUNT_SUCCESS);
801 0 : else if (state == MOUNT_REMOUNTING_SIGKILL)
802 0 : mount_enter_mounted(m, MOUNT_SUCCESS);
803 0 : else if (state == MOUNT_MOUNTING_SIGTERM)
804 0 : mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, MOUNT_SUCCESS);
805 0 : else if (state == MOUNT_UNMOUNTING_SIGTERM)
806 0 : mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, MOUNT_SUCCESS);
807 : else
808 0 : mount_enter_dead(m, MOUNT_SUCCESS);
809 :
810 0 : return;
811 :
812 : fail:
813 0 : log_unit_warning_errno(UNIT(m), r, "Failed to kill processes: %m");
814 :
815 0 : if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
816 0 : mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
817 : else
818 0 : mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
819 : }
820 :
821 0 : static void mount_enter_unmounting(Mount *m) {
822 : int r;
823 :
824 0 : assert(m);
825 :
826 : /* Start counting our attempts */
827 0 : if (!IN_SET(m->state,
828 : MOUNT_UNMOUNTING,
829 : MOUNT_UNMOUNTING_SIGTERM,
830 : MOUNT_UNMOUNTING_SIGKILL))
831 0 : m->n_retry_umount = 0;
832 :
833 0 : m->control_command_id = MOUNT_EXEC_UNMOUNT;
834 0 : m->control_command = m->exec_command + MOUNT_EXEC_UNMOUNT;
835 :
836 0 : r = exec_command_set(m->control_command, UMOUNT_PATH, m->where, NULL);
837 0 : if (r < 0)
838 0 : goto fail;
839 :
840 0 : mount_unwatch_control_pid(m);
841 :
842 0 : r = mount_spawn(m, m->control_command, &m->control_pid);
843 0 : if (r < 0)
844 0 : goto fail;
845 :
846 0 : mount_set_state(m, MOUNT_UNMOUNTING);
847 :
848 0 : return;
849 :
850 : fail:
851 0 : log_unit_warning_errno(UNIT(m), r, "Failed to run 'umount' task: %m");
852 0 : mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
853 : }
854 :
855 0 : static void mount_enter_mounting(Mount *m) {
856 : int r;
857 : MountParameters *p;
858 :
859 0 : assert(m);
860 :
861 0 : m->control_command_id = MOUNT_EXEC_MOUNT;
862 0 : m->control_command = m->exec_command + MOUNT_EXEC_MOUNT;
863 :
864 0 : r = unit_fail_if_symlink(UNIT(m), m->where);
865 0 : if (r < 0)
866 0 : goto fail;
867 :
868 0 : (void) mkdir_p_label(m->where, m->directory_mode);
869 :
870 0 : unit_warn_if_dir_nonempty(UNIT(m), m->where);
871 :
872 : /* Create the source directory for bind-mounts if needed */
873 0 : p = get_mount_parameters_fragment(m);
874 0 : if (p && mount_is_bind(p))
875 0 : (void) mkdir_p_label(p->what, m->directory_mode);
876 :
877 0 : if (m->from_fragment) {
878 0 : _cleanup_free_ char *opts = NULL;
879 :
880 0 : r = fstab_filter_options(m->parameters_fragment.options,
881 : "nofail\0" "noauto\0" "auto\0", NULL, NULL, &opts);
882 0 : if (r < 0)
883 0 : goto fail;
884 :
885 0 : r = exec_command_set(m->control_command, MOUNT_PATH,
886 : m->parameters_fragment.what, m->where, NULL);
887 0 : if (r >= 0 && m->sloppy_options)
888 0 : r = exec_command_append(m->control_command, "-s", NULL);
889 0 : if (r >= 0 && m->parameters_fragment.fstype)
890 0 : r = exec_command_append(m->control_command, "-t", m->parameters_fragment.fstype, NULL);
891 0 : if (r >= 0 && !isempty(opts))
892 0 : r = exec_command_append(m->control_command, "-o", opts, NULL);
893 : } else
894 0 : r = -ENOENT;
895 :
896 0 : if (r < 0)
897 0 : goto fail;
898 :
899 0 : mount_unwatch_control_pid(m);
900 :
901 0 : r = mount_spawn(m, m->control_command, &m->control_pid);
902 0 : if (r < 0)
903 0 : goto fail;
904 :
905 0 : mount_set_state(m, MOUNT_MOUNTING);
906 :
907 0 : return;
908 :
909 : fail:
910 0 : log_unit_warning_errno(UNIT(m), r, "Failed to run 'mount' task: %m");
911 0 : mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
912 : }
913 :
914 0 : static void mount_enter_remounting(Mount *m) {
915 : int r;
916 :
917 0 : assert(m);
918 :
919 0 : m->control_command_id = MOUNT_EXEC_REMOUNT;
920 0 : m->control_command = m->exec_command + MOUNT_EXEC_REMOUNT;
921 :
922 0 : if (m->from_fragment) {
923 : const char *o;
924 :
925 0 : if (m->parameters_fragment.options)
926 0 : o = strjoina("remount,", m->parameters_fragment.options);
927 : else
928 0 : o = "remount";
929 :
930 0 : r = exec_command_set(m->control_command, MOUNT_PATH,
931 : m->parameters_fragment.what, m->where,
932 : "-o", o, NULL);
933 0 : if (r >= 0 && m->sloppy_options)
934 0 : r = exec_command_append(m->control_command, "-s", NULL);
935 0 : if (r >= 0 && m->parameters_fragment.fstype)
936 0 : r = exec_command_append(m->control_command, "-t", m->parameters_fragment.fstype, NULL);
937 : } else
938 0 : r = -ENOENT;
939 :
940 0 : if (r < 0)
941 0 : goto fail;
942 :
943 0 : mount_unwatch_control_pid(m);
944 :
945 0 : r = mount_spawn(m, m->control_command, &m->control_pid);
946 0 : if (r < 0)
947 0 : goto fail;
948 :
949 0 : mount_set_state(m, MOUNT_REMOUNTING);
950 :
951 0 : return;
952 :
953 : fail:
954 0 : log_unit_warning_errno(UNIT(m), r, "Failed to run 'remount' task: %m");
955 0 : m->reload_result = MOUNT_FAILURE_RESOURCES;
956 0 : mount_enter_mounted(m, MOUNT_SUCCESS);
957 : }
958 :
959 0 : static int mount_start(Unit *u) {
960 0 : Mount *m = MOUNT(u);
961 :
962 0 : assert(m);
963 :
964 : /* We cannot fulfill this request right now, try again later
965 : * please! */
966 0 : if (m->state == MOUNT_UNMOUNTING ||
967 0 : m->state == MOUNT_UNMOUNTING_SIGTERM ||
968 0 : m->state == MOUNT_UNMOUNTING_SIGKILL ||
969 0 : m->state == MOUNT_MOUNTING_SIGTERM ||
970 0 : m->state == MOUNT_MOUNTING_SIGKILL)
971 0 : return -EAGAIN;
972 :
973 : /* Already on it! */
974 0 : if (m->state == MOUNT_MOUNTING)
975 0 : return 0;
976 :
977 0 : assert(m->state == MOUNT_DEAD || m->state == MOUNT_FAILED);
978 :
979 0 : m->result = MOUNT_SUCCESS;
980 0 : m->reload_result = MOUNT_SUCCESS;
981 0 : m->reset_cpu_usage = true;
982 :
983 0 : mount_enter_mounting(m);
984 0 : return 1;
985 : }
986 :
987 0 : static int mount_stop(Unit *u) {
988 0 : Mount *m = MOUNT(u);
989 :
990 0 : assert(m);
991 :
992 : /* Already on it */
993 0 : if (m->state == MOUNT_UNMOUNTING ||
994 0 : m->state == MOUNT_UNMOUNTING_SIGKILL ||
995 0 : m->state == MOUNT_UNMOUNTING_SIGTERM ||
996 0 : m->state == MOUNT_MOUNTING_SIGTERM ||
997 0 : m->state == MOUNT_MOUNTING_SIGKILL)
998 0 : return 0;
999 :
1000 0 : assert(m->state == MOUNT_MOUNTING ||
1001 : m->state == MOUNT_MOUNTING_DONE ||
1002 : m->state == MOUNT_MOUNTED ||
1003 : m->state == MOUNT_REMOUNTING ||
1004 : m->state == MOUNT_REMOUNTING_SIGTERM ||
1005 : m->state == MOUNT_REMOUNTING_SIGKILL);
1006 :
1007 0 : mount_enter_unmounting(m);
1008 0 : return 1;
1009 : }
1010 :
1011 0 : static int mount_reload(Unit *u) {
1012 0 : Mount *m = MOUNT(u);
1013 :
1014 0 : assert(m);
1015 :
1016 0 : if (m->state == MOUNT_MOUNTING_DONE)
1017 0 : return -EAGAIN;
1018 :
1019 0 : assert(m->state == MOUNT_MOUNTED);
1020 :
1021 0 : mount_enter_remounting(m);
1022 0 : return 1;
1023 : }
1024 :
1025 0 : static int mount_serialize(Unit *u, FILE *f, FDSet *fds) {
1026 0 : Mount *m = MOUNT(u);
1027 :
1028 0 : assert(m);
1029 0 : assert(f);
1030 0 : assert(fds);
1031 :
1032 0 : unit_serialize_item(u, f, "state", mount_state_to_string(m->state));
1033 0 : unit_serialize_item(u, f, "result", mount_result_to_string(m->result));
1034 0 : unit_serialize_item(u, f, "reload-result", mount_result_to_string(m->reload_result));
1035 :
1036 0 : if (m->control_pid > 0)
1037 0 : unit_serialize_item_format(u, f, "control-pid", PID_FMT, m->control_pid);
1038 :
1039 0 : if (m->control_command_id >= 0)
1040 0 : unit_serialize_item(u, f, "control-command", mount_exec_command_to_string(m->control_command_id));
1041 :
1042 0 : return 0;
1043 : }
1044 :
1045 0 : static int mount_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
1046 0 : Mount *m = MOUNT(u);
1047 :
1048 0 : assert(u);
1049 0 : assert(key);
1050 0 : assert(value);
1051 0 : assert(fds);
1052 :
1053 0 : if (streq(key, "state")) {
1054 : MountState state;
1055 :
1056 0 : if ((state = mount_state_from_string(value)) < 0)
1057 0 : log_unit_debug(u, "Failed to parse state value: %s", value);
1058 : else
1059 0 : m->deserialized_state = state;
1060 0 : } else if (streq(key, "result")) {
1061 : MountResult f;
1062 :
1063 0 : f = mount_result_from_string(value);
1064 0 : if (f < 0)
1065 0 : log_unit_debug(u, "Failed to parse result value: %s", value);
1066 0 : else if (f != MOUNT_SUCCESS)
1067 0 : m->result = f;
1068 :
1069 0 : } else if (streq(key, "reload-result")) {
1070 : MountResult f;
1071 :
1072 0 : f = mount_result_from_string(value);
1073 0 : if (f < 0)
1074 0 : log_unit_debug(u, "Failed to parse reload result value: %s", value);
1075 0 : else if (f != MOUNT_SUCCESS)
1076 0 : m->reload_result = f;
1077 :
1078 0 : } else if (streq(key, "control-pid")) {
1079 : pid_t pid;
1080 :
1081 0 : if (parse_pid(value, &pid) < 0)
1082 0 : log_unit_debug(u, "Failed to parse control-pid value: %s", value);
1083 : else
1084 0 : m->control_pid = pid;
1085 0 : } else if (streq(key, "control-command")) {
1086 : MountExecCommand id;
1087 :
1088 0 : id = mount_exec_command_from_string(value);
1089 0 : if (id < 0)
1090 0 : log_unit_debug(u, "Failed to parse exec-command value: %s", value);
1091 : else {
1092 0 : m->control_command_id = id;
1093 0 : m->control_command = m->exec_command + id;
1094 : }
1095 : } else
1096 0 : log_unit_debug(u, "Unknown serialization key: %s", key);
1097 :
1098 0 : return 0;
1099 : }
1100 :
1101 756 : _pure_ static UnitActiveState mount_active_state(Unit *u) {
1102 756 : assert(u);
1103 :
1104 756 : return state_translation_table[MOUNT(u)->state];
1105 : }
1106 :
1107 0 : _pure_ static const char *mount_sub_state_to_string(Unit *u) {
1108 0 : assert(u);
1109 :
1110 0 : return mount_state_to_string(MOUNT(u)->state);
1111 : }
1112 :
1113 80 : _pure_ static bool mount_check_gc(Unit *u) {
1114 80 : Mount *m = MOUNT(u);
1115 :
1116 80 : assert(m);
1117 :
1118 80 : return m->from_proc_self_mountinfo;
1119 : }
1120 :
1121 0 : static void mount_sigchld_event(Unit *u, pid_t pid, int code, int status) {
1122 0 : Mount *m = MOUNT(u);
1123 : MountResult f;
1124 :
1125 0 : assert(m);
1126 0 : assert(pid >= 0);
1127 :
1128 0 : if (pid != m->control_pid)
1129 0 : return;
1130 :
1131 0 : m->control_pid = 0;
1132 :
1133 0 : if (is_clean_exit(code, status, NULL))
1134 0 : f = MOUNT_SUCCESS;
1135 0 : else if (code == CLD_EXITED)
1136 0 : f = MOUNT_FAILURE_EXIT_CODE;
1137 0 : else if (code == CLD_KILLED)
1138 0 : f = MOUNT_FAILURE_SIGNAL;
1139 0 : else if (code == CLD_DUMPED)
1140 0 : f = MOUNT_FAILURE_CORE_DUMP;
1141 : else
1142 0 : assert_not_reached("Unknown code");
1143 :
1144 0 : if (f != MOUNT_SUCCESS)
1145 0 : m->result = f;
1146 :
1147 0 : if (m->control_command) {
1148 0 : exec_status_exit(&m->control_command->exec_status, &m->exec_context, pid, code, status);
1149 :
1150 0 : m->control_command = NULL;
1151 0 : m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
1152 : }
1153 :
1154 0 : log_unit_full(u, f == MOUNT_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0,
1155 : "Mount process exited, code=%s status=%i", sigchld_code_to_string(code), status);
1156 :
1157 : /* Note that mount(8) returning and the kernel sending us a
1158 : * mount table change event might happen out-of-order. If an
1159 : * operation succeed we assume the kernel will follow soon too
1160 : * and already change into the resulting state. If it fails
1161 : * we check if the kernel still knows about the mount. and
1162 : * change state accordingly. */
1163 :
1164 0 : switch (m->state) {
1165 :
1166 : case MOUNT_MOUNTING:
1167 : case MOUNT_MOUNTING_DONE:
1168 : case MOUNT_MOUNTING_SIGKILL:
1169 : case MOUNT_MOUNTING_SIGTERM:
1170 :
1171 0 : if (f == MOUNT_SUCCESS)
1172 0 : mount_enter_mounted(m, f);
1173 0 : else if (m->from_proc_self_mountinfo)
1174 0 : mount_enter_mounted(m, f);
1175 : else
1176 0 : mount_enter_dead(m, f);
1177 0 : break;
1178 :
1179 : case MOUNT_REMOUNTING:
1180 : case MOUNT_REMOUNTING_SIGKILL:
1181 : case MOUNT_REMOUNTING_SIGTERM:
1182 :
1183 0 : m->reload_result = f;
1184 0 : if (m->from_proc_self_mountinfo)
1185 0 : mount_enter_mounted(m, MOUNT_SUCCESS);
1186 : else
1187 0 : mount_enter_dead(m, MOUNT_SUCCESS);
1188 :
1189 0 : break;
1190 :
1191 : case MOUNT_UNMOUNTING:
1192 : case MOUNT_UNMOUNTING_SIGKILL:
1193 : case MOUNT_UNMOUNTING_SIGTERM:
1194 :
1195 0 : if (f == MOUNT_SUCCESS) {
1196 :
1197 0 : if (m->from_proc_self_mountinfo) {
1198 :
1199 : /* Still a mount point? If so, let's
1200 : * try again. Most likely there were
1201 : * multiple mount points stacked on
1202 : * top of each other. Note that due to
1203 : * the io event priority logic we can
1204 : * be sure the new mountinfo is loaded
1205 : * before we process the SIGCHLD for
1206 : * the mount command. */
1207 :
1208 0 : if (m->n_retry_umount < RETRY_UMOUNT_MAX) {
1209 0 : log_unit_debug(u, "Mount still present, trying again.");
1210 0 : m->n_retry_umount++;
1211 0 : mount_enter_unmounting(m);
1212 : } else {
1213 0 : log_unit_debug(u, "Mount still present after %u attempts to unmount, giving up.", m->n_retry_umount);
1214 0 : mount_enter_mounted(m, f);
1215 : }
1216 : } else
1217 0 : mount_enter_dead(m, f);
1218 :
1219 0 : } else if (m->from_proc_self_mountinfo)
1220 0 : mount_enter_mounted(m, f);
1221 : else
1222 0 : mount_enter_dead(m, f);
1223 0 : break;
1224 :
1225 : default:
1226 0 : assert_not_reached("Uh, control process died at wrong time.");
1227 : }
1228 :
1229 : /* Notify clients about changed exit status */
1230 0 : unit_add_to_dbus_queue(u);
1231 : }
1232 :
1233 0 : static int mount_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
1234 0 : Mount *m = MOUNT(userdata);
1235 :
1236 0 : assert(m);
1237 0 : assert(m->timer_event_source == source);
1238 :
1239 0 : switch (m->state) {
1240 :
1241 : case MOUNT_MOUNTING:
1242 : case MOUNT_MOUNTING_DONE:
1243 0 : log_unit_warning(UNIT(m), "Mounting timed out. Stopping.");
1244 0 : mount_enter_signal(m, MOUNT_MOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
1245 0 : break;
1246 :
1247 : case MOUNT_REMOUNTING:
1248 0 : log_unit_warning(UNIT(m), "Remounting timed out. Stopping.");
1249 0 : m->reload_result = MOUNT_FAILURE_TIMEOUT;
1250 0 : mount_enter_mounted(m, MOUNT_SUCCESS);
1251 0 : break;
1252 :
1253 : case MOUNT_UNMOUNTING:
1254 0 : log_unit_warning(UNIT(m), "Unmounting timed out. Stopping.");
1255 0 : mount_enter_signal(m, MOUNT_UNMOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
1256 0 : break;
1257 :
1258 : case MOUNT_MOUNTING_SIGTERM:
1259 0 : if (m->kill_context.send_sigkill) {
1260 0 : log_unit_warning(UNIT(m), "Mounting timed out. Killing.");
1261 0 : mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
1262 : } else {
1263 0 : log_unit_warning(UNIT(m), "Mounting timed out. Skipping SIGKILL. Ignoring.");
1264 :
1265 0 : if (m->from_proc_self_mountinfo)
1266 0 : mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
1267 : else
1268 0 : mount_enter_dead(m, MOUNT_FAILURE_TIMEOUT);
1269 : }
1270 0 : break;
1271 :
1272 : case MOUNT_REMOUNTING_SIGTERM:
1273 0 : if (m->kill_context.send_sigkill) {
1274 0 : log_unit_warning(UNIT(m), "Remounting timed out. Killing.");
1275 0 : mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
1276 : } else {
1277 0 : log_unit_warning(UNIT(m), "Remounting timed out. Skipping SIGKILL. Ignoring.");
1278 :
1279 0 : if (m->from_proc_self_mountinfo)
1280 0 : mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
1281 : else
1282 0 : mount_enter_dead(m, MOUNT_FAILURE_TIMEOUT);
1283 : }
1284 0 : break;
1285 :
1286 : case MOUNT_UNMOUNTING_SIGTERM:
1287 0 : if (m->kill_context.send_sigkill) {
1288 0 : log_unit_warning(UNIT(m), "Unmounting timed out. Killing.");
1289 0 : mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
1290 : } else {
1291 0 : log_unit_warning(UNIT(m), "Unmounting timed out. Skipping SIGKILL. Ignoring.");
1292 :
1293 0 : if (m->from_proc_self_mountinfo)
1294 0 : mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
1295 : else
1296 0 : mount_enter_dead(m, MOUNT_FAILURE_TIMEOUT);
1297 : }
1298 0 : break;
1299 :
1300 : case MOUNT_MOUNTING_SIGKILL:
1301 : case MOUNT_REMOUNTING_SIGKILL:
1302 : case MOUNT_UNMOUNTING_SIGKILL:
1303 0 : log_unit_warning(UNIT(m),"Mount process still around after SIGKILL. Ignoring.");
1304 :
1305 0 : if (m->from_proc_self_mountinfo)
1306 0 : mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
1307 : else
1308 0 : mount_enter_dead(m, MOUNT_FAILURE_TIMEOUT);
1309 0 : break;
1310 :
1311 : default:
1312 0 : assert_not_reached("Timeout at wrong time.");
1313 : }
1314 :
1315 0 : return 0;
1316 : }
1317 :
1318 290 : static int mount_setup_unit(
1319 : Manager *m,
1320 : const char *what,
1321 : const char *where,
1322 : const char *options,
1323 : const char *fstype,
1324 : bool set_flags) {
1325 :
1326 580 : _cleanup_free_ char *e = NULL, *w = NULL, *o = NULL, *f = NULL;
1327 290 : bool load_extras = false;
1328 : MountParameters *p;
1329 290 : bool delete, changed = false;
1330 : Unit *u;
1331 : int r;
1332 :
1333 290 : assert(m);
1334 290 : assert(what);
1335 290 : assert(where);
1336 290 : assert(options);
1337 290 : assert(fstype);
1338 :
1339 : /* Ignore API mount points. They should never be referenced in
1340 : * dependencies ever. */
1341 290 : if (mount_point_is_api(where) || mount_point_ignore(where))
1342 190 : return 0;
1343 :
1344 100 : if (streq(fstype, "autofs"))
1345 20 : return 0;
1346 :
1347 : /* probably some kind of swap, ignore */
1348 80 : if (!is_path(where))
1349 0 : return 0;
1350 :
1351 80 : r = unit_name_from_path(where, ".mount", &e);
1352 80 : if (r < 0)
1353 0 : return r;
1354 :
1355 80 : u = manager_get_unit(m, e);
1356 80 : if (!u) {
1357 80 : delete = true;
1358 :
1359 80 : u = unit_new(m, sizeof(Mount));
1360 80 : if (!u)
1361 0 : return log_oom();
1362 :
1363 80 : r = unit_add_name(u, e);
1364 80 : if (r < 0)
1365 0 : goto fail;
1366 :
1367 80 : MOUNT(u)->where = strdup(where);
1368 80 : if (!MOUNT(u)->where) {
1369 0 : r = -ENOMEM;
1370 0 : goto fail;
1371 : }
1372 :
1373 80 : u->source_path = strdup("/proc/self/mountinfo");
1374 80 : if (!u->source_path) {
1375 0 : r = -ENOMEM;
1376 0 : goto fail;
1377 : }
1378 :
1379 80 : if (m->running_as == MANAGER_SYSTEM) {
1380 : const char* target;
1381 :
1382 0 : target = mount_needs_network(options, fstype) ? SPECIAL_REMOTE_FS_TARGET : SPECIAL_LOCAL_FS_TARGET;
1383 0 : r = unit_add_dependency_by_name(u, UNIT_BEFORE, target, NULL, true);
1384 0 : if (r < 0)
1385 0 : goto fail;
1386 :
1387 0 : if (should_umount(MOUNT(u))) {
1388 0 : r = unit_add_dependency_by_name(u, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
1389 0 : if (r < 0)
1390 0 : goto fail;
1391 : }
1392 : }
1393 :
1394 80 : unit_add_to_load_queue(u);
1395 80 : changed = true;
1396 : } else {
1397 0 : delete = false;
1398 :
1399 0 : if (!MOUNT(u)->where) {
1400 0 : MOUNT(u)->where = strdup(where);
1401 0 : if (!MOUNT(u)->where) {
1402 0 : r = -ENOMEM;
1403 0 : goto fail;
1404 : }
1405 : }
1406 :
1407 0 : if (m->running_as == MANAGER_SYSTEM &&
1408 0 : mount_needs_network(options, fstype)) {
1409 : /* _netdev option may have shown up late, or on a
1410 : * remount. Add remote-fs dependencies, even though
1411 : * local-fs ones may already be there. */
1412 0 : unit_add_dependency_by_name(u, UNIT_BEFORE, SPECIAL_REMOTE_FS_TARGET, NULL, true);
1413 0 : load_extras = true;
1414 : }
1415 :
1416 0 : if (u->load_state == UNIT_NOT_FOUND) {
1417 0 : u->load_state = UNIT_LOADED;
1418 0 : u->load_error = 0;
1419 :
1420 : /* Load in the extras later on, after we
1421 : * finished initialization of the unit */
1422 0 : load_extras = true;
1423 0 : changed = true;
1424 : }
1425 : }
1426 :
1427 80 : w = strdup(what);
1428 80 : o = strdup(options);
1429 80 : f = strdup(fstype);
1430 80 : if (!w || !o || !f) {
1431 0 : r = -ENOMEM;
1432 0 : goto fail;
1433 : }
1434 :
1435 80 : p = &MOUNT(u)->parameters_proc_self_mountinfo;
1436 :
1437 80 : changed = changed ||
1438 0 : !streq_ptr(p->options, options) ||
1439 80 : !streq_ptr(p->what, what) ||
1440 0 : !streq_ptr(p->fstype, fstype);
1441 :
1442 80 : if (set_flags) {
1443 0 : MOUNT(u)->is_mounted = true;
1444 0 : MOUNT(u)->just_mounted = !MOUNT(u)->from_proc_self_mountinfo;
1445 0 : MOUNT(u)->just_changed = changed;
1446 : }
1447 :
1448 80 : MOUNT(u)->from_proc_self_mountinfo = true;
1449 :
1450 80 : free(p->what);
1451 80 : p->what = w;
1452 80 : w = NULL;
1453 :
1454 80 : free(p->options);
1455 80 : p->options = o;
1456 80 : o = NULL;
1457 :
1458 80 : free(p->fstype);
1459 80 : p->fstype = f;
1460 80 : f = NULL;
1461 :
1462 80 : if (load_extras) {
1463 0 : r = mount_add_extras(MOUNT(u));
1464 0 : if (r < 0)
1465 0 : goto fail;
1466 : }
1467 :
1468 80 : if (changed)
1469 80 : unit_add_to_dbus_queue(u);
1470 :
1471 80 : return 0;
1472 :
1473 : fail:
1474 0 : log_warning_errno(r, "Failed to set up mount unit: %m");
1475 :
1476 0 : if (delete && u)
1477 0 : unit_free(u);
1478 :
1479 0 : return r;
1480 : }
1481 :
1482 10 : static int mount_load_proc_self_mountinfo(Manager *m, bool set_flags) {
1483 20 : _cleanup_(mnt_free_tablep) struct libmnt_table *t = NULL;
1484 20 : _cleanup_(mnt_free_iterp) struct libmnt_iter *i = NULL;
1485 10 : int r = 0;
1486 :
1487 10 : assert(m);
1488 :
1489 10 : t = mnt_new_table();
1490 10 : if (!t)
1491 0 : return log_oom();
1492 :
1493 10 : i = mnt_new_iter(MNT_ITER_FORWARD);
1494 10 : if (!i)
1495 0 : return log_oom();
1496 :
1497 10 : r = mnt_table_parse_mtab(t, NULL);
1498 10 : if (r < 0)
1499 0 : return log_error_errno(r, "Failed to parse /proc/self/mountinfo: %m");
1500 :
1501 10 : r = 0;
1502 : for (;;) {
1503 : const char *device, *path, *options, *fstype;
1504 600 : _cleanup_free_ char *d = NULL, *p = NULL;
1505 : struct libmnt_fs *fs;
1506 : int k;
1507 :
1508 300 : k = mnt_table_next_fs(t, i, &fs);
1509 300 : if (k == 1)
1510 10 : break;
1511 290 : if (k < 0)
1512 0 : return log_error_errno(k, "Failed to get next entry from /proc/self/mountinfo: %m");
1513 :
1514 290 : device = mnt_fs_get_source(fs);
1515 290 : path = mnt_fs_get_target(fs);
1516 290 : options = mnt_fs_get_options(fs);
1517 290 : fstype = mnt_fs_get_fstype(fs);
1518 :
1519 290 : if (!device || !path)
1520 0 : continue;
1521 :
1522 290 : if (cunescape(device, UNESCAPE_RELAX, &d) < 0)
1523 0 : return log_oom();
1524 :
1525 290 : if (cunescape(path, UNESCAPE_RELAX, &p) < 0)
1526 0 : return log_oom();
1527 :
1528 290 : (void) device_found_node(m, d, true, DEVICE_FOUND_MOUNT, set_flags);
1529 :
1530 290 : k = mount_setup_unit(m, d, p, options, fstype, set_flags);
1531 290 : if (r == 0 && k < 0)
1532 0 : r = k;
1533 290 : }
1534 :
1535 10 : return r;
1536 : }
1537 :
1538 11 : static void mount_shutdown(Manager *m) {
1539 11 : assert(m);
1540 :
1541 11 : m->mount_event_source = sd_event_source_unref(m->mount_event_source);
1542 11 : m->mount_utab_event_source = sd_event_source_unref(m->mount_utab_event_source);
1543 :
1544 11 : if (m->proc_self_mountinfo) {
1545 10 : fclose(m->proc_self_mountinfo);
1546 10 : m->proc_self_mountinfo = NULL;
1547 : }
1548 11 : m->utab_inotify_fd = safe_close(m->utab_inotify_fd);
1549 11 : }
1550 :
1551 0 : static int mount_get_timeout(Unit *u, uint64_t *timeout) {
1552 0 : Mount *m = MOUNT(u);
1553 : int r;
1554 :
1555 0 : if (!m->timer_event_source)
1556 0 : return 0;
1557 :
1558 0 : r = sd_event_source_get_time(m->timer_event_source, timeout);
1559 0 : if (r < 0)
1560 0 : return r;
1561 :
1562 0 : return 1;
1563 : }
1564 :
1565 10 : static int mount_enumerate(Manager *m) {
1566 : int r;
1567 10 : assert(m);
1568 :
1569 10 : mnt_init_debug(0);
1570 :
1571 10 : if (!m->proc_self_mountinfo) {
1572 10 : m->proc_self_mountinfo = fopen("/proc/self/mountinfo", "re");
1573 10 : if (!m->proc_self_mountinfo)
1574 0 : return -errno;
1575 :
1576 10 : r = sd_event_add_io(m->event, &m->mount_event_source, fileno(m->proc_self_mountinfo), EPOLLPRI, mount_dispatch_io, m);
1577 10 : if (r < 0)
1578 0 : goto fail;
1579 :
1580 : /* Dispatch this before we dispatch SIGCHLD, so that
1581 : * we always get the events from /proc/self/mountinfo
1582 : * before the SIGCHLD of /usr/bin/mount. */
1583 10 : r = sd_event_source_set_priority(m->mount_event_source, -10);
1584 10 : if (r < 0)
1585 0 : goto fail;
1586 :
1587 10 : (void) sd_event_source_set_description(m->mount_event_source, "mount-mountinfo-dispatch");
1588 : }
1589 :
1590 10 : if (m->utab_inotify_fd < 0) {
1591 10 : m->utab_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
1592 10 : if (m->utab_inotify_fd < 0) {
1593 0 : r = -errno;
1594 0 : goto fail;
1595 : }
1596 :
1597 10 : (void) mkdir_p_label("/run/mount", 0755);
1598 :
1599 10 : r = inotify_add_watch(m->utab_inotify_fd, "/run/mount", IN_MOVED_TO);
1600 10 : if (r < 0) {
1601 0 : r = -errno;
1602 0 : goto fail;
1603 : }
1604 :
1605 10 : r = sd_event_add_io(m->event, &m->mount_utab_event_source, m->utab_inotify_fd, EPOLLIN, mount_dispatch_io, m);
1606 10 : if (r < 0)
1607 0 : goto fail;
1608 :
1609 10 : r = sd_event_source_set_priority(m->mount_utab_event_source, -10);
1610 10 : if (r < 0)
1611 0 : goto fail;
1612 :
1613 10 : (void) sd_event_source_set_description(m->mount_utab_event_source, "mount-utab-dispatch");
1614 : }
1615 :
1616 10 : r = mount_load_proc_self_mountinfo(m, false);
1617 10 : if (r < 0)
1618 0 : goto fail;
1619 :
1620 10 : return 0;
1621 :
1622 : fail:
1623 0 : mount_shutdown(m);
1624 0 : return r;
1625 : }
1626 :
1627 0 : static int mount_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1628 0 : _cleanup_set_free_ Set *around = NULL, *gone = NULL;
1629 0 : Manager *m = userdata;
1630 : const char *what;
1631 : Iterator i;
1632 : Unit *u;
1633 : int r;
1634 :
1635 0 : assert(m);
1636 0 : assert(revents & (EPOLLPRI | EPOLLIN));
1637 :
1638 : /* The manager calls this for every fd event happening on the
1639 : * /proc/self/mountinfo file, which informs us about mounting
1640 : * table changes, and for /run/mount events which we watch
1641 : * for mount options. */
1642 :
1643 0 : if (fd == m->utab_inotify_fd) {
1644 0 : bool rescan = false;
1645 :
1646 : /* FIXME: We *really* need to replace this with
1647 : * libmount's own API for this, we should not hardcode
1648 : * internal behaviour of libmount here. */
1649 :
1650 : for (;;) {
1651 : union inotify_event_buffer buffer;
1652 : struct inotify_event *e;
1653 : ssize_t l;
1654 :
1655 0 : l = read(fd, &buffer, sizeof(buffer));
1656 0 : if (l < 0) {
1657 0 : if (errno == EAGAIN || errno == EINTR)
1658 : break;
1659 :
1660 0 : log_error_errno(errno, "Failed to read utab inotify: %m");
1661 0 : break;
1662 : }
1663 :
1664 0 : FOREACH_INOTIFY_EVENT(e, buffer, l) {
1665 : /* Only care about changes to utab,
1666 : * but we have to monitor the
1667 : * directory to reliably get
1668 : * notifications about when utab is
1669 : * replaced using rename(2) */
1670 0 : if ((e->mask & IN_Q_OVERFLOW) || streq(e->name, "utab"))
1671 0 : rescan = true;
1672 : }
1673 0 : }
1674 :
1675 0 : if (!rescan)
1676 0 : return 0;
1677 : }
1678 :
1679 0 : r = mount_load_proc_self_mountinfo(m, true);
1680 0 : if (r < 0) {
1681 : /* Reset flags, just in case, for later calls */
1682 0 : LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_MOUNT]) {
1683 0 : Mount *mount = MOUNT(u);
1684 :
1685 0 : mount->is_mounted = mount->just_mounted = mount->just_changed = false;
1686 : }
1687 :
1688 0 : return 0;
1689 : }
1690 :
1691 0 : manager_dispatch_load_queue(m);
1692 :
1693 0 : LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_MOUNT]) {
1694 0 : Mount *mount = MOUNT(u);
1695 :
1696 0 : if (!mount->is_mounted) {
1697 :
1698 : /* A mount point is not around right now. It
1699 : * might be gone, or might never have
1700 : * existed. */
1701 :
1702 0 : if (mount->from_proc_self_mountinfo &&
1703 0 : mount->parameters_proc_self_mountinfo.what) {
1704 :
1705 : /* Remember that this device might just have disappeared */
1706 0 : if (set_ensure_allocated(&gone, &string_hash_ops) < 0 ||
1707 0 : set_put(gone, mount->parameters_proc_self_mountinfo.what) < 0)
1708 0 : log_oom(); /* we don't care too much about OOM here... */
1709 : }
1710 :
1711 0 : mount->from_proc_self_mountinfo = false;
1712 :
1713 0 : switch (mount->state) {
1714 :
1715 : case MOUNT_MOUNTED:
1716 : /* This has just been unmounted by
1717 : * somebody else, follow the state
1718 : * change. */
1719 0 : mount_enter_dead(mount, MOUNT_SUCCESS);
1720 0 : break;
1721 :
1722 : default:
1723 0 : break;
1724 : }
1725 :
1726 0 : } else if (mount->just_mounted || mount->just_changed) {
1727 :
1728 : /* A mount point was added or changed */
1729 :
1730 0 : switch (mount->state) {
1731 :
1732 : case MOUNT_DEAD:
1733 : case MOUNT_FAILED:
1734 : /* This has just been mounted by
1735 : * somebody else, follow the state
1736 : * change. */
1737 0 : mount_enter_mounted(mount, MOUNT_SUCCESS);
1738 0 : break;
1739 :
1740 : case MOUNT_MOUNTING:
1741 0 : mount_set_state(mount, MOUNT_MOUNTING_DONE);
1742 0 : break;
1743 :
1744 : default:
1745 : /* Nothing really changed, but let's
1746 : * issue an notification call
1747 : * nonetheless, in case somebody is
1748 : * waiting for this. (e.g. file system
1749 : * ro/rw remounts.) */
1750 0 : mount_set_state(mount, mount->state);
1751 0 : break;
1752 : }
1753 : }
1754 :
1755 0 : if (mount->is_mounted &&
1756 0 : mount->from_proc_self_mountinfo &&
1757 0 : mount->parameters_proc_self_mountinfo.what) {
1758 :
1759 0 : if (set_ensure_allocated(&around, &string_hash_ops) < 0 ||
1760 0 : set_put(around, mount->parameters_proc_self_mountinfo.what) < 0)
1761 0 : log_oom();
1762 : }
1763 :
1764 : /* Reset the flags for later calls */
1765 0 : mount->is_mounted = mount->just_mounted = mount->just_changed = false;
1766 : }
1767 :
1768 0 : SET_FOREACH(what, gone, i) {
1769 0 : if (set_contains(around, what))
1770 0 : continue;
1771 :
1772 : /* Let the device units know that the device is no longer mounted */
1773 0 : (void) device_found_node(m, what, false, DEVICE_FOUND_MOUNT, true);
1774 : }
1775 :
1776 0 : return 0;
1777 : }
1778 :
1779 0 : static void mount_reset_failed(Unit *u) {
1780 0 : Mount *m = MOUNT(u);
1781 :
1782 0 : assert(m);
1783 :
1784 0 : if (m->state == MOUNT_FAILED)
1785 0 : mount_set_state(m, MOUNT_DEAD);
1786 :
1787 0 : m->result = MOUNT_SUCCESS;
1788 0 : m->reload_result = MOUNT_SUCCESS;
1789 0 : }
1790 :
1791 0 : static int mount_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
1792 0 : return unit_kill_common(u, who, signo, -1, MOUNT(u)->control_pid, error);
1793 : }
1794 :
1795 : static const char* const mount_state_table[_MOUNT_STATE_MAX] = {
1796 : [MOUNT_DEAD] = "dead",
1797 : [MOUNT_MOUNTING] = "mounting",
1798 : [MOUNT_MOUNTING_DONE] = "mounting-done",
1799 : [MOUNT_MOUNTED] = "mounted",
1800 : [MOUNT_REMOUNTING] = "remounting",
1801 : [MOUNT_UNMOUNTING] = "unmounting",
1802 : [MOUNT_MOUNTING_SIGTERM] = "mounting-sigterm",
1803 : [MOUNT_MOUNTING_SIGKILL] = "mounting-sigkill",
1804 : [MOUNT_REMOUNTING_SIGTERM] = "remounting-sigterm",
1805 : [MOUNT_REMOUNTING_SIGKILL] = "remounting-sigkill",
1806 : [MOUNT_UNMOUNTING_SIGTERM] = "unmounting-sigterm",
1807 : [MOUNT_UNMOUNTING_SIGKILL] = "unmounting-sigkill",
1808 : [MOUNT_FAILED] = "failed"
1809 : };
1810 :
1811 222 : DEFINE_STRING_TABLE_LOOKUP(mount_state, MountState);
1812 :
1813 : static const char* const mount_exec_command_table[_MOUNT_EXEC_COMMAND_MAX] = {
1814 : [MOUNT_EXEC_MOUNT] = "ExecMount",
1815 : [MOUNT_EXEC_UNMOUNT] = "ExecUnmount",
1816 : [MOUNT_EXEC_REMOUNT] = "ExecRemount",
1817 : };
1818 :
1819 10 : DEFINE_STRING_TABLE_LOOKUP(mount_exec_command, MountExecCommand);
1820 :
1821 : static const char* const mount_result_table[_MOUNT_RESULT_MAX] = {
1822 : [MOUNT_SUCCESS] = "success",
1823 : [MOUNT_FAILURE_RESOURCES] = "resources",
1824 : [MOUNT_FAILURE_TIMEOUT] = "timeout",
1825 : [MOUNT_FAILURE_EXIT_CODE] = "exit-code",
1826 : [MOUNT_FAILURE_SIGNAL] = "signal",
1827 : [MOUNT_FAILURE_CORE_DUMP] = "core-dump"
1828 : };
1829 :
1830 48 : DEFINE_STRING_TABLE_LOOKUP(mount_result, MountResult);
1831 :
1832 : const UnitVTable mount_vtable = {
1833 : .object_size = sizeof(Mount),
1834 : .exec_context_offset = offsetof(Mount, exec_context),
1835 : .cgroup_context_offset = offsetof(Mount, cgroup_context),
1836 : .kill_context_offset = offsetof(Mount, kill_context),
1837 : .exec_runtime_offset = offsetof(Mount, exec_runtime),
1838 :
1839 : .sections =
1840 : "Unit\0"
1841 : "Mount\0"
1842 : "Install\0",
1843 : .private_section = "Mount",
1844 :
1845 : .no_alias = true,
1846 : .no_instances = true,
1847 :
1848 : .init = mount_init,
1849 : .load = mount_load,
1850 : .done = mount_done,
1851 :
1852 : .coldplug = mount_coldplug,
1853 :
1854 : .dump = mount_dump,
1855 :
1856 : .start = mount_start,
1857 : .stop = mount_stop,
1858 : .reload = mount_reload,
1859 :
1860 : .kill = mount_kill,
1861 :
1862 : .serialize = mount_serialize,
1863 : .deserialize_item = mount_deserialize_item,
1864 :
1865 : .active_state = mount_active_state,
1866 : .sub_state_to_string = mount_sub_state_to_string,
1867 :
1868 : .check_gc = mount_check_gc,
1869 :
1870 : .sigchld_event = mount_sigchld_event,
1871 :
1872 : .reset_failed = mount_reset_failed,
1873 :
1874 : .bus_interface = "org.freedesktop.systemd1.Mount",
1875 : .bus_vtable = bus_mount_vtable,
1876 : .bus_set_property = bus_mount_set_property,
1877 : .bus_commit_properties = bus_mount_commit_properties,
1878 :
1879 : .get_timeout = mount_get_timeout,
1880 :
1881 : .can_transient = true,
1882 :
1883 : .enumerate = mount_enumerate,
1884 : .shutdown = mount_shutdown,
1885 :
1886 : .status_message_formats = {
1887 : .starting_stopping = {
1888 : [0] = "Mounting %s...",
1889 : [1] = "Unmounting %s...",
1890 : },
1891 : .finished_start_job = {
1892 : [JOB_DONE] = "Mounted %s.",
1893 : [JOB_FAILED] = "Failed to mount %s.",
1894 : [JOB_TIMEOUT] = "Timed out mounting %s.",
1895 : },
1896 : .finished_stop_job = {
1897 : [JOB_DONE] = "Unmounted %s.",
1898 : [JOB_FAILED] = "Failed unmounting %s.",
1899 : [JOB_TIMEOUT] = "Timed out unmounting %s.",
1900 : },
1901 : },
1902 : };
|
