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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
a7334b09 LP |
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 | |
5430f7f2 LP |
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 | |
a7334b09 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
5cb5a6ff | 22 | #include <errno.h> |
8d567588 LP |
23 | #include <limits.h> |
24 | #include <sys/mount.h> | |
25 | #include <unistd.h> | |
26 | #include <fcntl.h> | |
27 | #include <sys/epoll.h> | |
28 | #include <sys/stat.h> | |
29 | #include <linux/auto_fs4.h> | |
30 | #include <linux/auto_dev-ioctl.h> | |
5cb5a6ff | 31 | |
87f0e418 | 32 | #include "unit.h" |
5cb5a6ff | 33 | #include "automount.h" |
20ad4cfd | 34 | #include "mount.h" |
8d567588 | 35 | #include "unit-name.h" |
4e67ddd6 | 36 | #include "special.h" |
e51bc1a2 | 37 | #include "label.h" |
49e942b2 | 38 | #include "mkdir.h" |
9eb977db | 39 | #include "path-util.h" |
718db961 LP |
40 | #include "dbus-automount.h" |
41 | #include "bus-util.h" | |
42 | #include "bus-error.h" | |
6482f626 | 43 | #include "formats-util.h" |
0b452006 | 44 | #include "process-util.h" |
deb0a77c | 45 | #include "async.h" |
5cb5a6ff | 46 | |
e537352b LP |
47 | static const UnitActiveState state_translation_table[_AUTOMOUNT_STATE_MAX] = { |
48 | [AUTOMOUNT_DEAD] = UNIT_INACTIVE, | |
49 | [AUTOMOUNT_WAITING] = UNIT_ACTIVE, | |
50 | [AUTOMOUNT_RUNNING] = UNIT_ACTIVE, | |
74ac3cbd | 51 | [AUTOMOUNT_FAILED] = UNIT_FAILED |
e537352b | 52 | }; |
5cb5a6ff | 53 | |
deb0a77c MO |
54 | struct expire_data { |
55 | int dev_autofs_fd; | |
56 | int ioctl_fd; | |
57 | }; | |
58 | ||
59 | static inline void expire_data_free(struct expire_data *data) { | |
60 | if (!data) | |
61 | return; | |
62 | ||
63 | safe_close(data->dev_autofs_fd); | |
64 | safe_close(data->ioctl_fd); | |
65 | free(data); | |
66 | } | |
67 | ||
68 | DEFINE_TRIVIAL_CLEANUP_FUNC(struct expire_data*, expire_data_free); | |
69 | ||
a16e1123 | 70 | static int open_dev_autofs(Manager *m); |
718db961 | 71 | static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, void *userdata); |
8d567588 | 72 | |
e537352b LP |
73 | static void automount_init(Unit *u) { |
74 | Automount *a = AUTOMOUNT(u); | |
5cb5a6ff | 75 | |
8d567588 | 76 | assert(u); |
ac155bb8 | 77 | assert(u->load_state == UNIT_STUB); |
8d567588 | 78 | |
718db961 | 79 | a->pipe_fd = -1; |
1cf18f27 | 80 | a->directory_mode = 0755; |
1124fe6f | 81 | UNIT(a)->ignore_on_isolate = true; |
8d567588 LP |
82 | } |
83 | ||
a5e41bdb | 84 | static void repeat_unmount(const char *path) { |
8d567588 LP |
85 | assert(path); |
86 | ||
87 | for (;;) { | |
1b560190 LP |
88 | /* If there are multiple mounts on a mount point, this |
89 | * removes them all */ | |
8d567588 LP |
90 | |
91 | if (umount2(path, MNT_DETACH) >= 0) | |
92 | continue; | |
93 | ||
94 | if (errno != EINVAL) | |
56f64d95 | 95 | log_error_errno(errno, "Failed to unmount: %m"); |
8d567588 LP |
96 | |
97 | break; | |
98 | } | |
99 | } | |
100 | ||
deb0a77c MO |
101 | static int automount_send_ready(Automount *a, Set *tokens, int status); |
102 | ||
8d567588 LP |
103 | static void unmount_autofs(Automount *a) { |
104 | assert(a); | |
105 | ||
106 | if (a->pipe_fd < 0) | |
107 | return; | |
108 | ||
deb0a77c MO |
109 | automount_send_ready(a, a->tokens, -EHOSTDOWN); |
110 | automount_send_ready(a, a->expire_tokens, -EHOSTDOWN); | |
8d567588 | 111 | |
718db961 | 112 | a->pipe_event_source = sd_event_source_unref(a->pipe_event_source); |
03e334a1 | 113 | a->pipe_fd = safe_close(a->pipe_fd); |
8d567588 | 114 | |
a16e1123 LP |
115 | /* If we reload/reexecute things we keep the mount point |
116 | * around */ | |
117 | if (a->where && | |
1124fe6f MS |
118 | (UNIT(a)->manager->exit_code != MANAGER_RELOAD && |
119 | UNIT(a)->manager->exit_code != MANAGER_REEXECUTE)) | |
a5e41bdb | 120 | repeat_unmount(a->where); |
8d567588 LP |
121 | } |
122 | ||
123 | static void automount_done(Unit *u) { | |
124 | Automount *a = AUTOMOUNT(u); | |
125 | ||
126 | assert(a); | |
127 | ||
128 | unmount_autofs(a); | |
8d567588 | 129 | |
a16e1123 LP |
130 | free(a->where); |
131 | a->where = NULL; | |
132 | ||
133 | set_free(a->tokens); | |
134 | a->tokens = NULL; | |
deb0a77c MO |
135 | set_free(a->expire_tokens); |
136 | a->expire_tokens = NULL; | |
137 | ||
138 | a->expire_event_source = sd_event_source_unref(a->expire_event_source); | |
8d567588 LP |
139 | } |
140 | ||
a57f7e2c LP |
141 | static int automount_add_mount_links(Automount *a) { |
142 | _cleanup_free_ char *parent = NULL; | |
6e2ef85b LP |
143 | int r; |
144 | ||
145 | assert(a); | |
1b560190 | 146 | |
a57f7e2c | 147 | r = path_get_parent(a->where, &parent); |
0b2665c3 | 148 | if (r < 0) |
6e2ef85b LP |
149 | return r; |
150 | ||
a57f7e2c | 151 | return unit_require_mounts_for(UNIT(a), parent); |
6e2ef85b LP |
152 | } |
153 | ||
2edd4434 LP |
154 | static int automount_add_default_dependencies(Automount *a) { |
155 | int r; | |
156 | ||
157 | assert(a); | |
158 | ||
67445f4e | 159 | if (UNIT(a)->manager->running_as != SYSTEMD_SYSTEM) |
6b1dc2bd | 160 | return 0; |
2a77d31d | 161 | |
6b1dc2bd LP |
162 | r = unit_add_two_dependencies_by_name(UNIT(a), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true); |
163 | if (r < 0) | |
164 | return r; | |
2edd4434 LP |
165 | |
166 | return 0; | |
167 | } | |
168 | ||
8d567588 LP |
169 | static int automount_verify(Automount *a) { |
170 | bool b; | |
e1d75803 | 171 | _cleanup_free_ char *e = NULL; |
8d567588 LP |
172 | assert(a); |
173 | ||
1124fe6f | 174 | if (UNIT(a)->load_state != UNIT_LOADED) |
8d567588 LP |
175 | return 0; |
176 | ||
41e45059 | 177 | if (path_equal(a->where, "/")) { |
79008bdd | 178 | log_unit_error(UNIT(a)->id, "Cannot have an automount unit for the root directory. Refusing."); |
41e45059 LP |
179 | return -EINVAL; |
180 | } | |
181 | ||
0b2665c3 LP |
182 | e = unit_name_from_path(a->where, ".automount"); |
183 | if (!e) | |
8d567588 LP |
184 | return -ENOMEM; |
185 | ||
186 | b = unit_has_name(UNIT(a), e); | |
8d567588 LP |
187 | |
188 | if (!b) { | |
79008bdd | 189 | log_unit_error(UNIT(a)->id, "%s's Where setting doesn't match unit name. Refusing.", UNIT(a)->id); |
8d567588 LP |
190 | return -EINVAL; |
191 | } | |
192 | ||
193 | return 0; | |
e537352b | 194 | } |
5cb5a6ff | 195 | |
e537352b | 196 | static int automount_load(Unit *u) { |
e537352b | 197 | Automount *a = AUTOMOUNT(u); |
3ecaa09b | 198 | int r; |
23a177ef | 199 | |
e537352b | 200 | assert(u); |
ac155bb8 | 201 | assert(u->load_state == UNIT_STUB); |
5cb5a6ff | 202 | |
e537352b | 203 | /* Load a .automount file */ |
0b2665c3 LP |
204 | r = unit_load_fragment_and_dropin_optional(u); |
205 | if (r < 0) | |
e537352b | 206 | return r; |
23a177ef | 207 | |
ac155bb8 | 208 | if (u->load_state == UNIT_LOADED) { |
57020a3a | 209 | Unit *x; |
23a177ef | 210 | |
0b2665c3 LP |
211 | if (!a->where) { |
212 | a->where = unit_name_to_path(u->id); | |
213 | if (!a->where) | |
a16e1123 | 214 | return -ENOMEM; |
0b2665c3 | 215 | } |
a16e1123 LP |
216 | |
217 | path_kill_slashes(a->where); | |
218 | ||
3ecaa09b | 219 | r = unit_load_related_unit(u, ".mount", &x); |
0b2665c3 | 220 | if (r < 0) |
6e2ef85b LP |
221 | return r; |
222 | ||
3ecaa09b | 223 | r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, x, true); |
57020a3a | 224 | if (r < 0) |
23a177ef LP |
225 | return r; |
226 | ||
3ecaa09b | 227 | r = automount_add_mount_links(a); |
57020a3a | 228 | if (r < 0) |
23a177ef | 229 | return r; |
4e67ddd6 | 230 | |
0b2665c3 LP |
231 | if (UNIT(a)->default_dependencies) { |
232 | r = automount_add_default_dependencies(a); | |
233 | if (r < 0) | |
4e67ddd6 | 234 | return r; |
0b2665c3 | 235 | } |
23a177ef LP |
236 | } |
237 | ||
8d567588 | 238 | return automount_verify(a); |
5cb5a6ff LP |
239 | } |
240 | ||
8d567588 LP |
241 | static void automount_set_state(Automount *a, AutomountState state) { |
242 | AutomountState old_state; | |
e537352b | 243 | assert(a); |
034c6ed7 | 244 | |
8d567588 LP |
245 | old_state = a->state; |
246 | a->state = state; | |
247 | ||
248 | if (state != AUTOMOUNT_WAITING && | |
249 | state != AUTOMOUNT_RUNNING) | |
250 | unmount_autofs(a); | |
251 | ||
252 | if (state != old_state) | |
79008bdd | 253 | log_unit_debug(UNIT(a)->id, |
66870f90 ZJS |
254 | "%s changed %s -> %s", |
255 | UNIT(a)->id, | |
256 | automount_state_to_string(old_state), | |
257 | automount_state_to_string(state)); | |
8d567588 | 258 | |
e2f3b44c | 259 | unit_notify(UNIT(a), state_translation_table[old_state], state_translation_table[state], true); |
034c6ed7 LP |
260 | } |
261 | ||
be847e82 | 262 | static int automount_coldplug(Unit *u) { |
a16e1123 LP |
263 | Automount *a = AUTOMOUNT(u); |
264 | int r; | |
265 | ||
266 | assert(a); | |
267 | assert(a->state == AUTOMOUNT_DEAD); | |
268 | ||
269 | if (a->deserialized_state != a->state) { | |
270 | ||
0b2665c3 LP |
271 | r = open_dev_autofs(u->manager); |
272 | if (r < 0) | |
a16e1123 LP |
273 | return r; |
274 | ||
275 | if (a->deserialized_state == AUTOMOUNT_WAITING || | |
276 | a->deserialized_state == AUTOMOUNT_RUNNING) { | |
277 | ||
278 | assert(a->pipe_fd >= 0); | |
279 | ||
151b9b96 | 280 | r = sd_event_add_io(u->manager->event, &a->pipe_event_source, a->pipe_fd, EPOLLIN, automount_dispatch_io, u); |
0b2665c3 | 281 | if (r < 0) |
a16e1123 LP |
282 | return r; |
283 | } | |
284 | ||
285 | automount_set_state(a, a->deserialized_state); | |
286 | } | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
87f0e418 | 291 | static void automount_dump(Unit *u, FILE *f, const char *prefix) { |
deb0a77c | 292 | char time_string[FORMAT_TIMESPAN_MAX]; |
a16e1123 | 293 | Automount *a = AUTOMOUNT(u); |
5cb5a6ff | 294 | |
a16e1123 | 295 | assert(a); |
5cb5a6ff LP |
296 | |
297 | fprintf(f, | |
a16e1123 | 298 | "%sAutomount State: %s\n" |
81a5c6d0 | 299 | "%sResult: %s\n" |
1cf18f27 | 300 | "%sWhere: %s\n" |
deb0a77c MO |
301 | "%sDirectoryMode: %04o\n" |
302 | "%sTimeoutIdleUSec: %s\n", | |
a16e1123 | 303 | prefix, automount_state_to_string(a->state), |
81a5c6d0 | 304 | prefix, automount_result_to_string(a->result), |
1cf18f27 | 305 | prefix, a->where, |
deb0a77c MO |
306 | prefix, a->directory_mode, |
307 | prefix, format_timespan(time_string, FORMAT_TIMESPAN_MAX, a->timeout_idle_usec, USEC_PER_SEC)); | |
5cb5a6ff LP |
308 | } |
309 | ||
81a5c6d0 | 310 | static void automount_enter_dead(Automount *a, AutomountResult f) { |
8d567588 LP |
311 | assert(a); |
312 | ||
81a5c6d0 LP |
313 | if (f != AUTOMOUNT_SUCCESS) |
314 | a->result = f; | |
8d567588 | 315 | |
81a5c6d0 | 316 | automount_set_state(a, a->result != AUTOMOUNT_SUCCESS ? AUTOMOUNT_FAILED : AUTOMOUNT_DEAD); |
8d567588 LP |
317 | } |
318 | ||
319 | static int open_dev_autofs(Manager *m) { | |
320 | struct autofs_dev_ioctl param; | |
321 | ||
322 | assert(m); | |
323 | ||
324 | if (m->dev_autofs_fd >= 0) | |
325 | return m->dev_autofs_fd; | |
326 | ||
c9bc0764 | 327 | label_fix("/dev/autofs", false, false); |
56cf987f | 328 | |
0b2665c3 | 329 | m->dev_autofs_fd = open("/dev/autofs", O_CLOEXEC|O_RDONLY); |
4a62c710 MS |
330 | if (m->dev_autofs_fd < 0) |
331 | return log_error_errno(errno, "Failed to open /dev/autofs: %m"); | |
8d567588 LP |
332 | |
333 | init_autofs_dev_ioctl(¶m); | |
334 | if (ioctl(m->dev_autofs_fd, AUTOFS_DEV_IOCTL_VERSION, ¶m) < 0) { | |
03e334a1 | 335 | m->dev_autofs_fd = safe_close(m->dev_autofs_fd); |
8d567588 LP |
336 | return -errno; |
337 | } | |
338 | ||
339 | log_debug("Autofs kernel version %i.%i", param.ver_major, param.ver_minor); | |
340 | ||
341 | return m->dev_autofs_fd; | |
342 | } | |
343 | ||
344 | static int open_ioctl_fd(int dev_autofs_fd, const char *where, dev_t devid) { | |
345 | struct autofs_dev_ioctl *param; | |
346 | size_t l; | |
8d567588 LP |
347 | |
348 | assert(dev_autofs_fd >= 0); | |
349 | assert(where); | |
350 | ||
351 | l = sizeof(struct autofs_dev_ioctl) + strlen(where) + 1; | |
0b2665c3 | 352 | param = alloca(l); |
8d567588 LP |
353 | |
354 | init_autofs_dev_ioctl(param); | |
355 | param->size = l; | |
356 | param->ioctlfd = -1; | |
357 | param->openmount.devid = devid; | |
358 | strcpy(param->path, where); | |
359 | ||
0b2665c3 LP |
360 | if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_OPENMOUNT, param) < 0) |
361 | return -errno; | |
8d567588 | 362 | |
0b2665c3 LP |
363 | if (param->ioctlfd < 0) |
364 | return -EIO; | |
8d567588 | 365 | |
f34beace | 366 | (void) fd_cloexec(param->ioctlfd, true); |
0b2665c3 | 367 | return param->ioctlfd; |
8d567588 LP |
368 | } |
369 | ||
370 | static int autofs_protocol(int dev_autofs_fd, int ioctl_fd) { | |
371 | uint32_t major, minor; | |
372 | struct autofs_dev_ioctl param; | |
373 | ||
374 | assert(dev_autofs_fd >= 0); | |
375 | assert(ioctl_fd >= 0); | |
376 | ||
377 | init_autofs_dev_ioctl(¶m); | |
378 | param.ioctlfd = ioctl_fd; | |
379 | ||
380 | if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_PROTOVER, ¶m) < 0) | |
381 | return -errno; | |
382 | ||
383 | major = param.protover.version; | |
384 | ||
385 | init_autofs_dev_ioctl(¶m); | |
386 | param.ioctlfd = ioctl_fd; | |
387 | ||
388 | if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_PROTOSUBVER, ¶m) < 0) | |
389 | return -errno; | |
390 | ||
391 | minor = param.protosubver.sub_version; | |
392 | ||
393 | log_debug("Autofs protocol version %i.%i", major, minor); | |
394 | return 0; | |
395 | } | |
396 | ||
deb0a77c | 397 | static int autofs_set_timeout(int dev_autofs_fd, int ioctl_fd, usec_t usec) { |
8d567588 LP |
398 | struct autofs_dev_ioctl param; |
399 | ||
400 | assert(dev_autofs_fd >= 0); | |
401 | assert(ioctl_fd >= 0); | |
402 | ||
403 | init_autofs_dev_ioctl(¶m); | |
404 | param.ioctlfd = ioctl_fd; | |
deb0a77c MO |
405 | |
406 | /* Convert to seconds, rounding up. */ | |
407 | param.timeout.timeout = (usec + USEC_PER_SEC - 1) / USEC_PER_SEC; | |
8d567588 LP |
408 | |
409 | if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_TIMEOUT, ¶m) < 0) | |
410 | return -errno; | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
415 | static int autofs_send_ready(int dev_autofs_fd, int ioctl_fd, uint32_t token, int status) { | |
416 | struct autofs_dev_ioctl param; | |
417 | ||
418 | assert(dev_autofs_fd >= 0); | |
419 | assert(ioctl_fd >= 0); | |
420 | ||
421 | init_autofs_dev_ioctl(¶m); | |
422 | param.ioctlfd = ioctl_fd; | |
423 | ||
424 | if (status) { | |
425 | param.fail.token = token; | |
426 | param.fail.status = status; | |
427 | } else | |
428 | param.ready.token = token; | |
429 | ||
430 | if (ioctl(dev_autofs_fd, status ? AUTOFS_DEV_IOCTL_FAIL : AUTOFS_DEV_IOCTL_READY, ¶m) < 0) | |
431 | return -errno; | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
deb0a77c | 436 | static int automount_send_ready(Automount *a, Set *tokens, int status) { |
03e334a1 | 437 | _cleanup_close_ int ioctl_fd = -1; |
8d567588 | 438 | unsigned token; |
03e334a1 | 439 | int r; |
8d567588 LP |
440 | |
441 | assert(a); | |
442 | assert(status <= 0); | |
443 | ||
deb0a77c | 444 | if (set_isempty(tokens)) |
8d567588 LP |
445 | return 0; |
446 | ||
0b2665c3 | 447 | ioctl_fd = open_ioctl_fd(UNIT(a)->manager->dev_autofs_fd, a->where, a->dev_id); |
03e334a1 LP |
448 | if (ioctl_fd < 0) |
449 | return ioctl_fd; | |
8d567588 LP |
450 | |
451 | if (status) | |
31938a85 | 452 | log_unit_debug_errno(UNIT(a)->id, status, "Sending failure: %m"); |
8d567588 | 453 | else |
79008bdd | 454 | log_unit_debug(UNIT(a)->id, "Sending success."); |
8d567588 | 455 | |
e364ad06 LP |
456 | r = 0; |
457 | ||
8d567588 | 458 | /* Autofs thankfully does not hand out 0 as a token */ |
deb0a77c | 459 | while ((token = PTR_TO_UINT(set_steal_first(tokens)))) { |
8d567588 LP |
460 | int k; |
461 | ||
462 | /* Autofs fun fact II: | |
463 | * | |
464 | * if you pass a positive status code here, the kernel will | |
465 | * freeze! Yay! */ | |
466 | ||
0b2665c3 LP |
467 | k = autofs_send_ready(UNIT(a)->manager->dev_autofs_fd, |
468 | ioctl_fd, | |
469 | token, | |
470 | status); | |
471 | if (k < 0) | |
8d567588 LP |
472 | r = k; |
473 | } | |
474 | ||
8d567588 LP |
475 | return r; |
476 | } | |
477 | ||
deb0a77c | 478 | int automount_update_mount(Automount *a, MountState old_state, MountState state) { |
deb0a77c MO |
479 | assert(a); |
480 | ||
481 | switch (state) { | |
482 | case MOUNT_MOUNTED: | |
483 | case MOUNT_REMOUNTING: | |
484 | automount_send_ready(a, a->tokens, 0); | |
485 | break; | |
486 | case MOUNT_DEAD: | |
487 | case MOUNT_UNMOUNTING: | |
488 | case MOUNT_MOUNTING_SIGTERM: | |
489 | case MOUNT_MOUNTING_SIGKILL: | |
490 | case MOUNT_REMOUNTING_SIGTERM: | |
491 | case MOUNT_REMOUNTING_SIGKILL: | |
492 | case MOUNT_UNMOUNTING_SIGTERM: | |
493 | case MOUNT_UNMOUNTING_SIGKILL: | |
494 | case MOUNT_FAILED: | |
495 | if (old_state != state) | |
496 | automount_send_ready(a, a->tokens, -ENODEV); | |
497 | break; | |
498 | default: | |
499 | break; | |
500 | } | |
501 | ||
502 | switch (state) { | |
503 | case MOUNT_DEAD: | |
504 | automount_send_ready(a, a->expire_tokens, 0); | |
505 | break; | |
506 | case MOUNT_MOUNTING: | |
507 | case MOUNT_MOUNTING_DONE: | |
508 | case MOUNT_MOUNTING_SIGTERM: | |
509 | case MOUNT_MOUNTING_SIGKILL: | |
510 | case MOUNT_REMOUNTING_SIGTERM: | |
511 | case MOUNT_REMOUNTING_SIGKILL: | |
512 | case MOUNT_UNMOUNTING_SIGTERM: | |
513 | case MOUNT_UNMOUNTING_SIGKILL: | |
514 | case MOUNT_FAILED: | |
515 | if (old_state != state) | |
516 | automount_send_ready(a, a->expire_tokens, -ENODEV); | |
517 | break; | |
518 | default: | |
519 | break; | |
520 | } | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
8d567588 | 525 | static void automount_enter_waiting(Automount *a) { |
03e334a1 | 526 | _cleanup_close_ int ioctl_fd = -1; |
8d567588 | 527 | int p[2] = { -1, -1 }; |
5ffa8c81 ZJS |
528 | char name[sizeof("systemd-")-1 + DECIMAL_STR_MAX(pid_t) + 1]; |
529 | char options[sizeof("fd=,pgrp=,minproto=5,maxproto=5,direct")-1 | |
530 | + DECIMAL_STR_MAX(int) + DECIMAL_STR_MAX(gid_t) + 1]; | |
8d567588 | 531 | bool mounted = false; |
03e334a1 | 532 | int r, dev_autofs_fd; |
8d567588 LP |
533 | struct stat st; |
534 | ||
535 | assert(a); | |
536 | assert(a->pipe_fd < 0); | |
537 | assert(a->where); | |
538 | ||
539 | if (a->tokens) | |
540 | set_clear(a->tokens); | |
8d567588 | 541 | |
0b2665c3 LP |
542 | dev_autofs_fd = open_dev_autofs(UNIT(a)->manager); |
543 | if (dev_autofs_fd < 0) { | |
8d567588 LP |
544 | r = dev_autofs_fd; |
545 | goto fail; | |
546 | } | |
547 | ||
548 | /* We knowingly ignore the results of this call */ | |
d2e54fae | 549 | mkdir_p_label(a->where, 0555); |
8d567588 | 550 | |
20ad4cfd | 551 | warn_if_dir_nonempty(a->meta.id, a->where); |
e872b43c | 552 | |
a16e1123 | 553 | if (pipe2(p, O_NONBLOCK|O_CLOEXEC) < 0) { |
8d567588 LP |
554 | r = -errno; |
555 | goto fail; | |
556 | } | |
557 | ||
5ffa8c81 ZJS |
558 | xsprintf(options, "fd=%i,pgrp="PID_FMT",minproto=5,maxproto=5,direct", p[1], getpgrp()); |
559 | xsprintf(name, "systemd-"PID_FMT, getpid()); | |
8d567588 LP |
560 | if (mount(name, a->where, "autofs", 0, options) < 0) { |
561 | r = -errno; | |
562 | goto fail; | |
563 | } | |
564 | ||
565 | mounted = true; | |
566 | ||
03e334a1 | 567 | p[1] = safe_close(p[1]); |
8d567588 LP |
568 | |
569 | if (stat(a->where, &st) < 0) { | |
570 | r = -errno; | |
571 | goto fail; | |
572 | } | |
573 | ||
0b2665c3 LP |
574 | ioctl_fd = open_ioctl_fd(dev_autofs_fd, a->where, st.st_dev); |
575 | if (ioctl_fd < 0) { | |
8d567588 LP |
576 | r = ioctl_fd; |
577 | goto fail; | |
578 | } | |
579 | ||
0b2665c3 LP |
580 | r = autofs_protocol(dev_autofs_fd, ioctl_fd); |
581 | if (r < 0) | |
8d567588 LP |
582 | goto fail; |
583 | ||
deb0a77c | 584 | r = autofs_set_timeout(dev_autofs_fd, ioctl_fd, a->timeout_idle_usec); |
0b2665c3 | 585 | if (r < 0) |
8d567588 LP |
586 | goto fail; |
587 | ||
588 | /* Autofs fun fact: | |
589 | * | |
590 | * Unless we close the ioctl fd here, for some weird reason | |
591 | * the direct mount will not receive events from the | |
592 | * kernel. */ | |
593 | ||
151b9b96 | 594 | r = sd_event_add_io(UNIT(a)->manager->event, &a->pipe_event_source, p[0], EPOLLIN, automount_dispatch_io, a); |
0b2665c3 | 595 | if (r < 0) |
8d567588 LP |
596 | goto fail; |
597 | ||
598 | a->pipe_fd = p[0]; | |
599 | a->dev_id = st.st_dev; | |
600 | ||
601 | automount_set_state(a, AUTOMOUNT_WAITING); | |
602 | ||
603 | return; | |
604 | ||
605 | fail: | |
3d94f76c | 606 | safe_close_pair(p); |
8d567588 LP |
607 | |
608 | if (mounted) | |
a5e41bdb | 609 | repeat_unmount(a->where); |
8d567588 | 610 | |
79008bdd | 611 | log_unit_error(UNIT(a)->id, |
66870f90 | 612 | "Failed to initialize automounter: %s", strerror(-r)); |
81a5c6d0 | 613 | automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES); |
8d567588 LP |
614 | } |
615 | ||
deb0a77c MO |
616 | static void *expire_thread(void *p) { |
617 | struct autofs_dev_ioctl param; | |
618 | _cleanup_(expire_data_freep) struct expire_data *data = (struct expire_data*)p; | |
619 | int r; | |
620 | ||
621 | assert(data->dev_autofs_fd >= 0); | |
622 | assert(data->ioctl_fd >= 0); | |
623 | ||
624 | init_autofs_dev_ioctl(¶m); | |
625 | param.ioctlfd = data->ioctl_fd; | |
626 | ||
627 | do { | |
628 | r = ioctl(data->dev_autofs_fd, AUTOFS_DEV_IOCTL_EXPIRE, ¶m); | |
629 | } while (r >= 0); | |
630 | ||
631 | if (errno != EAGAIN) | |
632 | log_warning_errno(errno, "Failed to expire automount, ignoring: %m"); | |
633 | ||
634 | return NULL; | |
635 | } | |
636 | ||
637 | static int automount_start_expire(Automount *a); | |
638 | ||
639 | static int automount_dispatch_expire(sd_event_source *source, usec_t usec, void *userdata) { | |
640 | Automount *a = AUTOMOUNT(userdata); | |
641 | _cleanup_(expire_data_freep) struct expire_data *data = NULL; | |
642 | int r; | |
643 | ||
644 | assert(a); | |
645 | assert(source == a->expire_event_source); | |
646 | ||
647 | data = new0(struct expire_data, 1); | |
648 | if (!data) | |
649 | return log_oom(); | |
650 | ||
651 | data->ioctl_fd = -1; | |
652 | ||
653 | data->dev_autofs_fd = fcntl(UNIT(a)->manager->dev_autofs_fd, F_DUPFD_CLOEXEC, 3); | |
654 | if (data->dev_autofs_fd < 0) | |
655 | return log_unit_error_errno(UNIT(a)->id, errno, "Failed to duplicate autofs fd: %m"); | |
656 | ||
657 | data->ioctl_fd = open_ioctl_fd(UNIT(a)->manager->dev_autofs_fd, a->where, a->dev_id); | |
658 | if (data->ioctl_fd < 0) | |
659 | return log_unit_error_errno(UNIT(a)->id, data->ioctl_fd, "Couldn't open autofs ioctl fd: %m"); | |
660 | ||
661 | r = asynchronous_job(expire_thread, data); | |
662 | if (r < 0) | |
663 | return log_unit_error_errno(UNIT(a)->id, r, "Failed to start expire job: %m"); | |
664 | ||
665 | data = NULL; | |
666 | ||
667 | return automount_start_expire(a); | |
668 | } | |
669 | ||
670 | static int automount_start_expire(Automount *a) { | |
671 | int r; | |
672 | usec_t timeout; | |
673 | ||
674 | assert(a); | |
675 | ||
676 | timeout = now(CLOCK_MONOTONIC) + MAX(a->timeout_idle_usec/10, USEC_PER_SEC); | |
677 | ||
678 | if (a->expire_event_source) { | |
679 | r = sd_event_source_set_time(a->expire_event_source, timeout); | |
680 | if (r < 0) | |
681 | return r; | |
682 | ||
683 | return sd_event_source_set_enabled(a->expire_event_source, SD_EVENT_ONESHOT); | |
684 | } | |
685 | ||
686 | return sd_event_add_time( | |
687 | UNIT(a)->manager->event, | |
688 | &a->expire_event_source, | |
689 | CLOCK_MONOTONIC, timeout, 0, | |
690 | automount_dispatch_expire, a); | |
691 | } | |
692 | ||
8d567588 | 693 | static void automount_enter_runnning(Automount *a) { |
718db961 | 694 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
3ecaa09b LP |
695 | struct stat st; |
696 | int r; | |
8d567588 LP |
697 | |
698 | assert(a); | |
8d567588 | 699 | |
ba3e67a7 LP |
700 | /* We don't take mount requests anymore if we are supposed to |
701 | * shut down anyway */ | |
31afa0a4 | 702 | if (unit_stop_pending(UNIT(a))) { |
79008bdd | 703 | log_unit_debug(UNIT(a)->id, |
66870f90 | 704 | "Suppressing automount request on %s since unit stop is scheduled.", UNIT(a)->id); |
deb0a77c MO |
705 | automount_send_ready(a, a->tokens, -EHOSTDOWN); |
706 | automount_send_ready(a, a->expire_tokens, -EHOSTDOWN); | |
ba3e67a7 LP |
707 | return; |
708 | } | |
709 | ||
d2e54fae | 710 | mkdir_p_label(a->where, a->directory_mode); |
8d567588 | 711 | |
1cf18f27 LP |
712 | /* Before we do anything, let's see if somebody is playing games with us? */ |
713 | if (lstat(a->where, &st) < 0) { | |
f34beace | 714 | log_unit_warning_errno(UNIT(a)->id, errno, "%s failed to stat automount point: %m", UNIT(a)->id); |
8d567588 LP |
715 | goto fail; |
716 | } | |
717 | ||
718 | if (!S_ISDIR(st.st_mode) || st.st_dev != a->dev_id) | |
79008bdd | 719 | log_unit_info(UNIT(a)->id, |
66870f90 | 720 | "%s's automount point already active?", UNIT(a)->id); |
3ecaa09b LP |
721 | else { |
722 | r = manager_add_job(UNIT(a)->manager, JOB_START, UNIT_TRIGGER(UNIT(a)), | |
723 | JOB_REPLACE, true, &error, NULL); | |
724 | if (r < 0) { | |
79008bdd | 725 | log_unit_warning(UNIT(a)->id, |
3ecaa09b | 726 | "%s failed to queue mount startup job: %s", |
718db961 | 727 | UNIT(a)->id, bus_error_message(&error, r)); |
3ecaa09b LP |
728 | goto fail; |
729 | } | |
8d567588 LP |
730 | } |
731 | ||
deb0a77c MO |
732 | r = automount_start_expire(a); |
733 | if (r < 0) | |
734 | log_unit_warning_errno(UNIT(a)->id, r, "Failed to start expiration timer, ignoring: %m"); | |
735 | ||
8d567588 LP |
736 | automount_set_state(a, AUTOMOUNT_RUNNING); |
737 | return; | |
738 | ||
739 | fail: | |
81a5c6d0 | 740 | automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES); |
8d567588 LP |
741 | } |
742 | ||
743 | static int automount_start(Unit *u) { | |
744 | Automount *a = AUTOMOUNT(u); | |
745 | ||
746 | assert(a); | |
74ac3cbd | 747 | assert(a->state == AUTOMOUNT_DEAD || a->state == AUTOMOUNT_FAILED); |
01f78473 | 748 | |
da00518b LP |
749 | if (path_is_mount_point(a->where, false) > 0) { |
750 | log_unit_error(u->id, "Path %s is already a mount point, refusing start for %s", a->where, u->id); | |
8d567588 LP |
751 | return -EEXIST; |
752 | } | |
753 | ||
3ecaa09b | 754 | if (UNIT_TRIGGER(u)->load_state != UNIT_LOADED) |
01f78473 | 755 | return -ENOENT; |
8d567588 | 756 | |
81a5c6d0 | 757 | a->result = AUTOMOUNT_SUCCESS; |
8d567588 | 758 | automount_enter_waiting(a); |
82a2b6bb | 759 | return 1; |
8d567588 LP |
760 | } |
761 | ||
762 | static int automount_stop(Unit *u) { | |
763 | Automount *a = AUTOMOUNT(u); | |
764 | ||
765 | assert(a); | |
8d567588 LP |
766 | assert(a->state == AUTOMOUNT_WAITING || a->state == AUTOMOUNT_RUNNING); |
767 | ||
81a5c6d0 | 768 | automount_enter_dead(a, AUTOMOUNT_SUCCESS); |
82a2b6bb | 769 | return 1; |
8d567588 LP |
770 | } |
771 | ||
a16e1123 LP |
772 | static int automount_serialize(Unit *u, FILE *f, FDSet *fds) { |
773 | Automount *a = AUTOMOUNT(u); | |
774 | void *p; | |
775 | Iterator i; | |
776 | ||
777 | assert(a); | |
778 | assert(f); | |
779 | assert(fds); | |
780 | ||
781 | unit_serialize_item(u, f, "state", automount_state_to_string(a->state)); | |
81a5c6d0 | 782 | unit_serialize_item(u, f, "result", automount_result_to_string(a->result)); |
a16e1123 LP |
783 | unit_serialize_item_format(u, f, "dev-id", "%u", (unsigned) a->dev_id); |
784 | ||
785 | SET_FOREACH(p, a->tokens, i) | |
786 | unit_serialize_item_format(u, f, "token", "%u", PTR_TO_UINT(p)); | |
deb0a77c MO |
787 | SET_FOREACH(p, a->expire_tokens, i) |
788 | unit_serialize_item_format(u, f, "expire-token", "%u", PTR_TO_UINT(p)); | |
a16e1123 LP |
789 | |
790 | if (a->pipe_fd >= 0) { | |
791 | int copy; | |
792 | ||
0b2665c3 LP |
793 | copy = fdset_put_dup(fds, a->pipe_fd); |
794 | if (copy < 0) | |
a16e1123 LP |
795 | return copy; |
796 | ||
797 | unit_serialize_item_format(u, f, "pipe-fd", "%i", copy); | |
798 | } | |
799 | ||
800 | return 0; | |
801 | } | |
802 | ||
803 | static int automount_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
804 | Automount *a = AUTOMOUNT(u); | |
805 | int r; | |
806 | ||
807 | assert(a); | |
808 | assert(fds); | |
809 | ||
810 | if (streq(key, "state")) { | |
811 | AutomountState state; | |
812 | ||
0b2665c3 LP |
813 | state = automount_state_from_string(value); |
814 | if (state < 0) | |
79008bdd | 815 | log_unit_debug(u->id, "Failed to parse state value %s", value); |
a16e1123 LP |
816 | else |
817 | a->deserialized_state = state; | |
81a5c6d0 LP |
818 | } else if (streq(key, "result")) { |
819 | AutomountResult f; | |
820 | ||
821 | f = automount_result_from_string(value); | |
822 | if (f < 0) | |
79008bdd | 823 | log_unit_debug(u->id, "Failed to parse result value %s", value); |
81a5c6d0 LP |
824 | else if (f != AUTOMOUNT_SUCCESS) |
825 | a->result = f; | |
a16e1123 | 826 | |
a16e1123 LP |
827 | } else if (streq(key, "dev-id")) { |
828 | unsigned d; | |
829 | ||
830 | if (safe_atou(value, &d) < 0) | |
79008bdd | 831 | log_unit_debug(u->id, "Failed to parse dev-id value %s", value); |
a16e1123 LP |
832 | else |
833 | a->dev_id = (unsigned) d; | |
834 | } else if (streq(key, "token")) { | |
835 | unsigned token; | |
836 | ||
837 | if (safe_atou(value, &token) < 0) | |
79008bdd | 838 | log_unit_debug(u->id, "Failed to parse token value %s", value); |
a16e1123 | 839 | else { |
f34beace LP |
840 | r = set_ensure_allocated(&a->tokens, NULL); |
841 | if (r < 0) { | |
842 | log_oom(); | |
843 | return 0; | |
844 | } | |
a16e1123 | 845 | |
0b2665c3 LP |
846 | r = set_put(a->tokens, UINT_TO_PTR(token)); |
847 | if (r < 0) | |
f34beace | 848 | log_unit_error_errno(u->id, r, "Failed to add token to set: %m"); |
a16e1123 | 849 | } |
deb0a77c MO |
850 | } else if (streq(key, "expire-token")) { |
851 | unsigned token; | |
852 | ||
853 | if (safe_atou(value, &token) < 0) | |
854 | log_unit_debug(u->id, "Failed to parse token value %s", value); | |
855 | else { | |
856 | r = set_ensure_allocated(&a->expire_tokens, NULL); | |
857 | if (r < 0) { | |
858 | log_oom(); | |
859 | return 0; | |
860 | } | |
861 | ||
862 | r = set_put(a->expire_tokens, UINT_TO_PTR(token)); | |
863 | if (r < 0) | |
864 | log_unit_error_errno(u->id, r, "Failed to add expire token to set: %m"); | |
865 | } | |
a16e1123 LP |
866 | } else if (streq(key, "pipe-fd")) { |
867 | int fd; | |
868 | ||
869 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
79008bdd | 870 | log_unit_debug(u->id, "Failed to parse pipe-fd value %s", value); |
a16e1123 | 871 | else { |
03e334a1 | 872 | safe_close(a->pipe_fd); |
a16e1123 LP |
873 | a->pipe_fd = fdset_remove(fds, fd); |
874 | } | |
875 | } else | |
79008bdd | 876 | log_unit_debug(u->id, "Unknown serialization key '%s'", key); |
a16e1123 LP |
877 | |
878 | return 0; | |
879 | } | |
880 | ||
87f0e418 | 881 | static UnitActiveState automount_active_state(Unit *u) { |
a16e1123 | 882 | assert(u); |
87f0e418 | 883 | |
e537352b | 884 | return state_translation_table[AUTOMOUNT(u)->state]; |
5cb5a6ff LP |
885 | } |
886 | ||
10a94420 LP |
887 | static const char *automount_sub_state_to_string(Unit *u) { |
888 | assert(u); | |
889 | ||
a16e1123 | 890 | return automount_state_to_string(AUTOMOUNT(u)->state); |
10a94420 LP |
891 | } |
892 | ||
701cc384 | 893 | static bool automount_check_gc(Unit *u) { |
3ecaa09b | 894 | assert(u); |
701cc384 | 895 | |
3ecaa09b | 896 | if (!UNIT_TRIGGER(u)) |
7573916f LP |
897 | return false; |
898 | ||
3ecaa09b | 899 | return UNIT_VTABLE(UNIT_TRIGGER(u))->check_gc(UNIT_TRIGGER(u)); |
701cc384 LP |
900 | } |
901 | ||
718db961 | 902 | static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, void *userdata) { |
deb0a77c | 903 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
8d567588 | 904 | union autofs_v5_packet_union packet; |
718db961 | 905 | Automount *a = AUTOMOUNT(userdata); |
8d567588 LP |
906 | int r; |
907 | ||
8d567588 LP |
908 | assert(a); |
909 | assert(fd == a->pipe_fd); | |
910 | ||
911 | if (events != EPOLLIN) { | |
50b03c8e ZJS |
912 | log_unit_error(UNIT(a)->id, "%s: got invalid poll event %"PRIu32" on pipe (fd=%d)", |
913 | UNIT(a)->id, events, fd); | |
8d567588 LP |
914 | goto fail; |
915 | } | |
916 | ||
a6dcc7e5 ZJS |
917 | r = loop_read_exact(a->pipe_fd, &packet, sizeof(packet), true); |
918 | if (r < 0) { | |
919 | log_unit_error_errno(UNIT(a)->id, r, "Invalid read from pipe: %m"); | |
8d567588 LP |
920 | goto fail; |
921 | } | |
922 | ||
923 | switch (packet.hdr.type) { | |
924 | ||
925 | case autofs_ptype_missing_direct: | |
941a4041 LP |
926 | |
927 | if (packet.v5_packet.pid > 0) { | |
e42e801b | 928 | _cleanup_free_ char *p = NULL; |
941a4041 | 929 | |
87d2c1ff | 930 | get_process_comm(packet.v5_packet.pid, &p); |
79008bdd | 931 | log_unit_info(UNIT(a)->id, |
1fa2f38f | 932 | "Got automount request for %s, triggered by %"PRIu32" (%s)", |
ccd06097 | 933 | a->where, packet.v5_packet.pid, strna(p)); |
941a4041 | 934 | } else |
79008bdd | 935 | log_unit_debug(UNIT(a)->id, "Got direct mount request on %s", a->where); |
8d567588 | 936 | |
d5099efc | 937 | r = set_ensure_allocated(&a->tokens, NULL); |
0b2665c3 | 938 | if (r < 0) { |
79008bdd | 939 | log_unit_error(UNIT(a)->id, "Failed to allocate token set."); |
0b2665c3 LP |
940 | goto fail; |
941 | } | |
a16e1123 | 942 | |
0b2665c3 LP |
943 | r = set_put(a->tokens, UINT_TO_PTR(packet.v5_packet.wait_queue_token)); |
944 | if (r < 0) { | |
31938a85 | 945 | log_unit_error_errno(UNIT(a)->id, r, "Failed to remember token: %m"); |
8d567588 LP |
946 | goto fail; |
947 | } | |
948 | ||
949 | automount_enter_runnning(a); | |
950 | break; | |
951 | ||
deb0a77c MO |
952 | case autofs_ptype_expire_direct: |
953 | log_unit_debug(UNIT(a)->id, "Got direct umount request on %s", a->where); | |
954 | ||
955 | (void) sd_event_source_set_enabled(a->expire_event_source, SD_EVENT_OFF); | |
956 | ||
957 | r = set_ensure_allocated(&a->expire_tokens, NULL); | |
958 | if (r < 0) { | |
959 | log_unit_error(UNIT(a)->id, "Failed to allocate token set."); | |
960 | goto fail; | |
961 | } | |
962 | ||
963 | r = set_put(a->expire_tokens, UINT_TO_PTR(packet.v5_packet.wait_queue_token)); | |
964 | if (r < 0) { | |
965 | log_unit_error_errno(UNIT(a)->id, r, "Failed to remember token: %m"); | |
966 | goto fail; | |
967 | } | |
968 | r = manager_add_job(UNIT(a)->manager, JOB_STOP, UNIT_TRIGGER(UNIT(a)), JOB_REPLACE, true, &error, NULL); | |
969 | if (r < 0) { | |
970 | log_unit_warning(UNIT(a)->id, | |
971 | "%s failed to queue umount startup job: %s", | |
972 | UNIT(a)->id, bus_error_message(&error, r)); | |
973 | goto fail; | |
974 | } | |
975 | break; | |
976 | ||
8d567588 | 977 | default: |
79008bdd | 978 | log_unit_error(UNIT(a)->id, "Received unknown automount request %i", packet.hdr.type); |
8d567588 LP |
979 | break; |
980 | } | |
981 | ||
718db961 | 982 | return 0; |
8d567588 LP |
983 | |
984 | fail: | |
81a5c6d0 | 985 | automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES); |
718db961 | 986 | return 0; |
8d567588 LP |
987 | } |
988 | ||
989 | static void automount_shutdown(Manager *m) { | |
990 | assert(m); | |
991 | ||
03e334a1 | 992 | m->dev_autofs_fd = safe_close(m->dev_autofs_fd); |
8d567588 LP |
993 | } |
994 | ||
74ac3cbd | 995 | static void automount_reset_failed(Unit *u) { |
5632e374 LP |
996 | Automount *a = AUTOMOUNT(u); |
997 | ||
998 | assert(a); | |
999 | ||
74ac3cbd | 1000 | if (a->state == AUTOMOUNT_FAILED) |
5632e374 LP |
1001 | automount_set_state(a, AUTOMOUNT_DEAD); |
1002 | ||
81a5c6d0 | 1003 | a->result = AUTOMOUNT_SUCCESS; |
5632e374 LP |
1004 | } |
1005 | ||
0faacd47 LP |
1006 | static bool automount_supported(Manager *m) { |
1007 | static int supported = -1; | |
1008 | ||
1009 | assert(m); | |
1010 | ||
1011 | if (supported < 0) | |
1012 | supported = access("/dev/autofs", F_OK) >= 0; | |
1013 | ||
1014 | return supported; | |
1015 | } | |
1016 | ||
a16e1123 LP |
1017 | static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = { |
1018 | [AUTOMOUNT_DEAD] = "dead", | |
1019 | [AUTOMOUNT_WAITING] = "waiting", | |
1020 | [AUTOMOUNT_RUNNING] = "running", | |
74ac3cbd | 1021 | [AUTOMOUNT_FAILED] = "failed" |
a16e1123 LP |
1022 | }; |
1023 | ||
1024 | DEFINE_STRING_TABLE_LOOKUP(automount_state, AutomountState); | |
1025 | ||
81a5c6d0 LP |
1026 | static const char* const automount_result_table[_AUTOMOUNT_RESULT_MAX] = { |
1027 | [AUTOMOUNT_SUCCESS] = "success", | |
1028 | [AUTOMOUNT_FAILURE_RESOURCES] = "resources" | |
1029 | }; | |
1030 | ||
1031 | DEFINE_STRING_TABLE_LOOKUP(automount_result, AutomountResult); | |
1032 | ||
87f0e418 | 1033 | const UnitVTable automount_vtable = { |
7d17cfbc | 1034 | .object_size = sizeof(Automount), |
718db961 | 1035 | |
f975e971 LP |
1036 | .sections = |
1037 | "Unit\0" | |
1038 | "Automount\0" | |
1039 | "Install\0", | |
5cb5a6ff | 1040 | |
e537352b | 1041 | .no_alias = true, |
8d567588 | 1042 | .no_instances = true, |
e537352b | 1043 | |
034c6ed7 | 1044 | .init = automount_init, |
e537352b | 1045 | .load = automount_load, |
034c6ed7 | 1046 | .done = automount_done, |
5cb5a6ff | 1047 | |
a16e1123 LP |
1048 | .coldplug = automount_coldplug, |
1049 | ||
034c6ed7 | 1050 | .dump = automount_dump, |
5cb5a6ff | 1051 | |
8d567588 LP |
1052 | .start = automount_start, |
1053 | .stop = automount_stop, | |
1054 | ||
a16e1123 LP |
1055 | .serialize = automount_serialize, |
1056 | .deserialize_item = automount_deserialize_item, | |
1057 | ||
10a94420 | 1058 | .active_state = automount_active_state, |
8d567588 LP |
1059 | .sub_state_to_string = automount_sub_state_to_string, |
1060 | ||
701cc384 LP |
1061 | .check_gc = automount_check_gc, |
1062 | ||
74ac3cbd | 1063 | .reset_failed = automount_reset_failed, |
5632e374 | 1064 | |
c4e2ceae | 1065 | .bus_interface = "org.freedesktop.systemd1.Automount", |
718db961 | 1066 | .bus_vtable = bus_automount_vtable, |
4139c1b2 | 1067 | |
c6918296 | 1068 | .shutdown = automount_shutdown, |
0faacd47 | 1069 | .supported = automount_supported, |
c6918296 MS |
1070 | |
1071 | .status_message_formats = { | |
1072 | .finished_start_job = { | |
1073 | [JOB_DONE] = "Set up automount %s.", | |
1074 | [JOB_FAILED] = "Failed to set up automount %s.", | |
1075 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
1076 | }, | |
1077 | .finished_stop_job = { | |
1078 | [JOB_DONE] = "Unset automount %s.", | |
1079 | [JOB_FAILED] = "Failed to unset automount %s.", | |
1080 | }, | |
1081 | }, | |
5cb5a6ff | 1082 | }; |