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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
b129c659 | 23 | * Portions Copyright 2011 Martin Matuska |
0cee2406 | 24 | * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net> |
b129c659 | 25 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
3541dc6d GA |
26 | * Copyright 2011 Nexenta Systems, Inc. All rights reserved. |
27 | * Copyright (c) 2011 by Delphix. All rights reserved. | |
28 | */ | |
34dc7c2f | 29 | |
34dc7c2f BB |
30 | #include <sys/types.h> |
31 | #include <sys/param.h> | |
32 | #include <sys/errno.h> | |
33 | #include <sys/uio.h> | |
34 | #include <sys/buf.h> | |
35 | #include <sys/modctl.h> | |
36 | #include <sys/open.h> | |
37 | #include <sys/file.h> | |
38 | #include <sys/kmem.h> | |
39 | #include <sys/conf.h> | |
40 | #include <sys/cmn_err.h> | |
41 | #include <sys/stat.h> | |
42 | #include <sys/zfs_ioctl.h> | |
428870ff | 43 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
44 | #include <sys/zfs_znode.h> |
45 | #include <sys/zap.h> | |
46 | #include <sys/spa.h> | |
47 | #include <sys/spa_impl.h> | |
48 | #include <sys/vdev.h> | |
428870ff | 49 | #include <sys/priv_impl.h> |
34dc7c2f BB |
50 | #include <sys/dmu.h> |
51 | #include <sys/dsl_dir.h> | |
52 | #include <sys/dsl_dataset.h> | |
53 | #include <sys/dsl_prop.h> | |
54 | #include <sys/dsl_deleg.h> | |
55 | #include <sys/dmu_objset.h> | |
56 | #include <sys/ddi.h> | |
57 | #include <sys/sunddi.h> | |
58 | #include <sys/sunldi.h> | |
59 | #include <sys/policy.h> | |
60 | #include <sys/zone.h> | |
61 | #include <sys/nvpair.h> | |
62 | #include <sys/pathname.h> | |
63 | #include <sys/mount.h> | |
64 | #include <sys/sdt.h> | |
65 | #include <sys/fs/zfs.h> | |
ebe7e575 | 66 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 67 | #include <sys/zfs_dir.h> |
572e2857 | 68 | #include <sys/zfs_onexit.h> |
34dc7c2f | 69 | #include <sys/zvol.h> |
428870ff | 70 | #include <sys/dsl_scan.h> |
34dc7c2f BB |
71 | #include <sharefs/share.h> |
72 | #include <sys/dmu_objset.h> | |
325f0235 BB |
73 | #include <sys/fm/util.h> |
74 | ||
75 | #include <linux/miscdevice.h> | |
34dc7c2f BB |
76 | |
77 | #include "zfs_namecheck.h" | |
78 | #include "zfs_prop.h" | |
79 | #include "zfs_deleg.h" | |
428870ff | 80 | #include "zfs_comutil.h" |
34dc7c2f | 81 | |
325f0235 BB |
82 | kmutex_t zfsdev_state_lock; |
83 | list_t zfsdev_state_list; | |
34dc7c2f BB |
84 | |
85 | extern void zfs_init(void); | |
86 | extern void zfs_fini(void); | |
87 | ||
34dc7c2f BB |
88 | typedef int zfs_ioc_func_t(zfs_cmd_t *); |
89 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *); | |
90 | ||
9babb374 BB |
91 | typedef enum { |
92 | NO_NAME, | |
93 | POOL_NAME, | |
94 | DATASET_NAME | |
95 | } zfs_ioc_namecheck_t; | |
96 | ||
572e2857 BB |
97 | typedef enum { |
98 | POOL_CHECK_NONE = 1 << 0, | |
99 | POOL_CHECK_SUSPENDED = 1 << 1, | |
100 | POOL_CHECK_READONLY = 1 << 2 | |
101 | } zfs_ioc_poolcheck_t; | |
102 | ||
34dc7c2f BB |
103 | typedef struct zfs_ioc_vec { |
104 | zfs_ioc_func_t *zvec_func; | |
105 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 106 | zfs_ioc_namecheck_t zvec_namecheck; |
34dc7c2f | 107 | boolean_t zvec_his_log; |
572e2857 | 108 | zfs_ioc_poolcheck_t zvec_pool_check; |
34dc7c2f BB |
109 | } zfs_ioc_vec_t; |
110 | ||
9babb374 BB |
111 | /* This array is indexed by zfs_userquota_prop_t */ |
112 | static const char *userquota_perms[] = { | |
113 | ZFS_DELEG_PERM_USERUSED, | |
114 | ZFS_DELEG_PERM_USERQUOTA, | |
115 | ZFS_DELEG_PERM_GROUPUSED, | |
116 | ZFS_DELEG_PERM_GROUPQUOTA, | |
117 | }; | |
118 | ||
119 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
120 | static int zfs_check_settable(const char *name, nvpair_t *property, |
121 | cred_t *cr); | |
122 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
123 | nvlist_t **errors); | |
b128c09f BB |
124 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
125 | boolean_t *); | |
428870ff | 126 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t **); |
b128c09f | 127 | |
34dc7c2f BB |
128 | static void |
129 | history_str_free(char *buf) | |
130 | { | |
131 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
132 | } | |
133 | ||
134 | static char * | |
135 | history_str_get(zfs_cmd_t *zc) | |
136 | { | |
137 | char *buf; | |
138 | ||
b8864a23 | 139 | if (zc->zc_history == 0) |
34dc7c2f BB |
140 | return (NULL); |
141 | ||
00b46022 | 142 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
143 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
144 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
145 | history_str_free(buf); | |
146 | return (NULL); | |
147 | } | |
148 | ||
149 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
150 | ||
151 | return (buf); | |
152 | } | |
153 | ||
154 | /* | |
b128c09f BB |
155 | * Check to see if the named dataset is currently defined as bootable |
156 | */ | |
157 | static boolean_t | |
158 | zfs_is_bootfs(const char *name) | |
159 | { | |
428870ff | 160 | objset_t *os; |
b128c09f | 161 | |
428870ff BB |
162 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
163 | boolean_t ret; | |
164 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
165 | dmu_objset_rele(os, FTAG); | |
166 | return (ret); | |
b128c09f | 167 | } |
428870ff | 168 | return (B_FALSE); |
b128c09f BB |
169 | } |
170 | ||
171 | /* | |
172 | * zfs_earlier_version | |
34dc7c2f BB |
173 | * |
174 | * Return non-zero if the spa version is less than requested version. | |
175 | */ | |
176 | static int | |
b128c09f | 177 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 178 | { |
34dc7c2f BB |
179 | spa_t *spa; |
180 | ||
181 | if (spa_open(name, &spa, FTAG) == 0) { | |
182 | if (spa_version(spa) < version) { | |
183 | spa_close(spa, FTAG); | |
184 | return (1); | |
185 | } | |
186 | spa_close(spa, FTAG); | |
187 | } | |
188 | return (0); | |
189 | } | |
190 | ||
191 | /* | |
b128c09f | 192 | * zpl_earlier_version |
34dc7c2f | 193 | * |
b128c09f | 194 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 195 | */ |
b128c09f BB |
196 | static boolean_t |
197 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
198 | { |
199 | objset_t *os; | |
b128c09f | 200 | boolean_t rc = B_TRUE; |
34dc7c2f | 201 | |
428870ff | 202 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 203 | uint64_t zplversion; |
34dc7c2f | 204 | |
428870ff BB |
205 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
206 | dmu_objset_rele(os, FTAG); | |
207 | return (B_TRUE); | |
208 | } | |
209 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
210 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
211 | rc = zplversion < version; | |
428870ff | 212 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
213 | } |
214 | return (rc); | |
215 | } | |
216 | ||
217 | static void | |
218 | zfs_log_history(zfs_cmd_t *zc) | |
219 | { | |
220 | spa_t *spa; | |
221 | char *buf; | |
222 | ||
223 | if ((buf = history_str_get(zc)) == NULL) | |
224 | return; | |
225 | ||
226 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
227 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
228 | (void) spa_history_log(spa, buf, LOG_CMD_NORMAL); | |
229 | spa_close(spa, FTAG); | |
230 | } | |
231 | history_str_free(buf); | |
232 | } | |
233 | ||
234 | /* | |
235 | * Policy for top-level read operations (list pools). Requires no privileges, | |
236 | * and can be used in the local zone, as there is no associated dataset. | |
237 | */ | |
238 | /* ARGSUSED */ | |
239 | static int | |
240 | zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr) | |
241 | { | |
242 | return (0); | |
243 | } | |
244 | ||
245 | /* | |
246 | * Policy for dataset read operations (list children, get statistics). Requires | |
247 | * no privileges, but must be visible in the local zone. | |
248 | */ | |
249 | /* ARGSUSED */ | |
250 | static int | |
251 | zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr) | |
252 | { | |
253 | if (INGLOBALZONE(curproc) || | |
254 | zone_dataset_visible(zc->zc_name, NULL)) | |
255 | return (0); | |
256 | ||
257 | return (ENOENT); | |
258 | } | |
259 | ||
260 | static int | |
572e2857 | 261 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 262 | { |
34dc7c2f BB |
263 | int writable = 1; |
264 | ||
265 | /* | |
266 | * The dataset must be visible by this zone -- check this first | |
267 | * so they don't see EPERM on something they shouldn't know about. | |
268 | */ | |
269 | if (!INGLOBALZONE(curproc) && | |
270 | !zone_dataset_visible(dataset, &writable)) | |
271 | return (ENOENT); | |
272 | ||
34dc7c2f BB |
273 | if (INGLOBALZONE(curproc)) { |
274 | /* | |
275 | * If the fs is zoned, only root can access it from the | |
276 | * global zone. | |
277 | */ | |
278 | if (secpolicy_zfs(cr) && zoned) | |
279 | return (EPERM); | |
280 | } else { | |
281 | /* | |
282 | * If we are in a local zone, the 'zoned' property must be set. | |
283 | */ | |
284 | if (!zoned) | |
285 | return (EPERM); | |
286 | ||
287 | /* must be writable by this zone */ | |
288 | if (!writable) | |
289 | return (EPERM); | |
290 | } | |
291 | return (0); | |
292 | } | |
293 | ||
572e2857 BB |
294 | static int |
295 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
296 | { | |
297 | uint64_t zoned; | |
298 | ||
299 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
300 | return (ENOENT); | |
301 | ||
302 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
303 | } | |
304 | ||
305 | static int | |
306 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
307 | { | |
308 | uint64_t zoned; | |
309 | ||
310 | rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER); | |
311 | if (dsl_prop_get_ds(ds, "zoned", 8, 1, &zoned, NULL)) { | |
312 | rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); | |
313 | return (ENOENT); | |
314 | } | |
315 | rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); | |
316 | ||
317 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
318 | } | |
319 | ||
330d06f9 MA |
320 | /* |
321 | * If name ends in a '@', then require recursive permissions. | |
322 | */ | |
34dc7c2f BB |
323 | int |
324 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) | |
325 | { | |
326 | int error; | |
330d06f9 MA |
327 | boolean_t descendent = B_FALSE; |
328 | dsl_dataset_t *ds; | |
329 | char *at; | |
330 | ||
331 | at = strchr(name, '@'); | |
332 | if (at != NULL && at[1] == '\0') { | |
333 | *at = '\0'; | |
334 | descendent = B_TRUE; | |
335 | } | |
336 | ||
337 | error = dsl_dataset_hold(name, FTAG, &ds); | |
338 | if (at != NULL) | |
339 | *at = '@'; | |
340 | if (error != 0) | |
341 | return (error); | |
34dc7c2f | 342 | |
330d06f9 | 343 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
344 | if (error == 0) { |
345 | error = secpolicy_zfs(cr); | |
346 | if (error) | |
330d06f9 | 347 | error = dsl_deleg_access_impl(ds, descendent, perm, cr); |
34dc7c2f | 348 | } |
330d06f9 MA |
349 | |
350 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
351 | return (error); |
352 | } | |
353 | ||
572e2857 BB |
354 | int |
355 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, | |
356 | const char *perm, cred_t *cr) | |
357 | { | |
358 | int error; | |
359 | ||
360 | error = zfs_dozonecheck_ds(name, ds, cr); | |
361 | if (error == 0) { | |
362 | error = secpolicy_zfs(cr); | |
363 | if (error) | |
330d06f9 | 364 | error = dsl_deleg_access_impl(ds, B_FALSE, perm, cr); |
572e2857 BB |
365 | } |
366 | return (error); | |
367 | } | |
368 | ||
428870ff BB |
369 | /* |
370 | * Policy for setting the security label property. | |
371 | * | |
372 | * Returns 0 for success, non-zero for access and other errors. | |
373 | */ | |
34dc7c2f | 374 | static int |
428870ff | 375 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 376 | { |
d2c15e84 | 377 | #ifdef HAVE_MLSLABEL |
428870ff BB |
378 | char ds_hexsl[MAXNAMELEN]; |
379 | bslabel_t ds_sl, new_sl; | |
380 | boolean_t new_default = FALSE; | |
381 | uint64_t zoned; | |
382 | int needed_priv = -1; | |
383 | int error; | |
384 | ||
385 | /* First get the existing dataset label. */ | |
386 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
387 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
388 | if (error) | |
389 | return (EPERM); | |
390 | ||
391 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
392 | new_default = TRUE; | |
393 | ||
394 | /* The label must be translatable */ | |
395 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
396 | return (EINVAL); | |
397 | ||
398 | /* | |
399 | * In a non-global zone, disallow attempts to set a label that | |
400 | * doesn't match that of the zone; otherwise no other checks | |
401 | * are needed. | |
402 | */ | |
403 | if (!INGLOBALZONE(curproc)) { | |
404 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
405 | return (EPERM); | |
406 | return (0); | |
407 | } | |
408 | ||
409 | /* | |
410 | * For global-zone datasets (i.e., those whose zoned property is | |
411 | * "off", verify that the specified new label is valid for the | |
412 | * global zone. | |
413 | */ | |
414 | if (dsl_prop_get_integer(name, | |
415 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
416 | return (EPERM); | |
417 | if (!zoned) { | |
418 | if (zfs_check_global_label(name, strval) != 0) | |
419 | return (EPERM); | |
420 | } | |
421 | ||
422 | /* | |
423 | * If the existing dataset label is nondefault, check if the | |
424 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 425 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
426 | * mounted (or isn't a dataset, doesn't exist, ...). |
427 | */ | |
428 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
429 | objset_t *os; | |
430 | static char *setsl_tag = "setsl_tag"; | |
431 | ||
432 | /* | |
433 | * Try to own the dataset; abort if there is any error, | |
434 | * (e.g., already mounted, in use, or other error). | |
435 | */ | |
436 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
437 | setsl_tag, &os); | |
438 | if (error) | |
439 | return (EPERM); | |
440 | ||
441 | dmu_objset_disown(os, setsl_tag); | |
442 | ||
443 | if (new_default) { | |
444 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
445 | goto out_check; | |
446 | } | |
447 | ||
448 | if (hexstr_to_label(strval, &new_sl) != 0) | |
449 | return (EPERM); | |
450 | ||
451 | if (blstrictdom(&ds_sl, &new_sl)) | |
452 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
453 | else if (blstrictdom(&new_sl, &ds_sl)) | |
454 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
455 | } else { | |
456 | /* dataset currently has a default label */ | |
457 | if (!new_default) | |
458 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
459 | } | |
460 | ||
461 | out_check: | |
462 | if (needed_priv != -1) | |
463 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
464 | return (0); | |
d2c15e84 BB |
465 | #else |
466 | return ENOTSUP; | |
467 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
468 | } |
469 | ||
470 | static int | |
471 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
472 | cred_t *cr) | |
473 | { | |
474 | char *strval; | |
475 | ||
34dc7c2f BB |
476 | /* |
477 | * Check permissions for special properties. | |
478 | */ | |
479 | switch (prop) { | |
e75c13c3 BB |
480 | default: |
481 | break; | |
34dc7c2f BB |
482 | case ZFS_PROP_ZONED: |
483 | /* | |
484 | * Disallow setting of 'zoned' from within a local zone. | |
485 | */ | |
486 | if (!INGLOBALZONE(curproc)) | |
487 | return (EPERM); | |
488 | break; | |
489 | ||
490 | case ZFS_PROP_QUOTA: | |
491 | if (!INGLOBALZONE(curproc)) { | |
492 | uint64_t zoned; | |
493 | char setpoint[MAXNAMELEN]; | |
494 | /* | |
495 | * Unprivileged users are allowed to modify the | |
496 | * quota on things *under* (ie. contained by) | |
497 | * the thing they own. | |
498 | */ | |
428870ff | 499 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f BB |
500 | setpoint)) |
501 | return (EPERM); | |
428870ff | 502 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
34dc7c2f BB |
503 | return (EPERM); |
504 | } | |
505 | break; | |
428870ff BB |
506 | |
507 | case ZFS_PROP_MLSLABEL: | |
508 | if (!is_system_labeled()) | |
509 | return (EPERM); | |
510 | ||
511 | if (nvpair_value_string(propval, &strval) == 0) { | |
512 | int err; | |
513 | ||
514 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
515 | if (err != 0) | |
516 | return (err); | |
517 | } | |
518 | break; | |
34dc7c2f BB |
519 | } |
520 | ||
428870ff | 521 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
522 | } |
523 | ||
524 | int | |
525 | zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr) | |
526 | { | |
527 | int error; | |
528 | ||
529 | error = zfs_dozonecheck(zc->zc_name, cr); | |
530 | if (error) | |
531 | return (error); | |
532 | ||
533 | /* | |
534 | * permission to set permissions will be evaluated later in | |
535 | * dsl_deleg_can_allow() | |
536 | */ | |
537 | return (0); | |
538 | } | |
539 | ||
540 | int | |
541 | zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr) | |
542 | { | |
428870ff BB |
543 | return (zfs_secpolicy_write_perms(zc->zc_name, |
544 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
545 | } |
546 | ||
547 | int | |
548 | zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr) | |
549 | { | |
572e2857 BB |
550 | spa_t *spa; |
551 | dsl_pool_t *dp; | |
552 | dsl_dataset_t *ds; | |
553 | char *cp; | |
554 | int error; | |
555 | ||
556 | /* | |
557 | * Generate the current snapshot name from the given objsetid, then | |
558 | * use that name for the secpolicy/zone checks. | |
559 | */ | |
560 | cp = strchr(zc->zc_name, '@'); | |
561 | if (cp == NULL) | |
562 | return (EINVAL); | |
563 | error = spa_open(zc->zc_name, &spa, FTAG); | |
564 | if (error) | |
565 | return (error); | |
566 | ||
567 | dp = spa_get_dsl(spa); | |
568 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
569 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
570 | rw_exit(&dp->dp_config_rwlock); | |
571 | spa_close(spa, FTAG); | |
572 | if (error) | |
573 | return (error); | |
574 | ||
575 | dsl_dataset_name(ds, zc->zc_name); | |
576 | ||
577 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
578 | ZFS_DELEG_PERM_SEND, cr); | |
579 | dsl_dataset_rele(ds, FTAG); | |
580 | ||
581 | return (error); | |
34dc7c2f BB |
582 | } |
583 | ||
3c9609b3 | 584 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
585 | static int |
586 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr) | |
587 | { | |
588 | vnode_t *vp; | |
589 | int error; | |
590 | ||
591 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
592 | NO_FOLLOW, NULL, &vp)) != 0) | |
593 | return (error); | |
594 | ||
595 | /* Now make sure mntpnt and dataset are ZFS */ | |
596 | ||
597 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
598 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
599 | zc->zc_name) != 0)) { | |
600 | VN_RELE(vp); | |
601 | return (EPERM); | |
602 | } | |
603 | ||
604 | VN_RELE(vp); | |
605 | return (dsl_deleg_access(zc->zc_name, | |
606 | ZFS_DELEG_PERM_SHARE, cr)); | |
607 | } | |
3c9609b3 | 608 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 609 | |
34dc7c2f BB |
610 | int |
611 | zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr) | |
612 | { | |
3c9609b3 | 613 | #ifdef HAVE_SMB_SHARE |
34dc7c2f BB |
614 | if (!INGLOBALZONE(curproc)) |
615 | return (EPERM); | |
616 | ||
617 | if (secpolicy_nfs(cr) == 0) { | |
618 | return (0); | |
619 | } else { | |
9babb374 BB |
620 | return (zfs_secpolicy_deleg_share(zc, cr)); |
621 | } | |
325f0235 BB |
622 | #else |
623 | return (ENOTSUP); | |
3c9609b3 | 624 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 625 | } |
34dc7c2f | 626 | |
9babb374 BB |
627 | int |
628 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr) | |
629 | { | |
3c9609b3 | 630 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
631 | if (!INGLOBALZONE(curproc)) |
632 | return (EPERM); | |
34dc7c2f | 633 | |
9babb374 BB |
634 | if (secpolicy_smb(cr) == 0) { |
635 | return (0); | |
636 | } else { | |
637 | return (zfs_secpolicy_deleg_share(zc, cr)); | |
34dc7c2f | 638 | } |
325f0235 BB |
639 | #else |
640 | return (ENOTSUP); | |
3c9609b3 | 641 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
642 | } |
643 | ||
644 | static int | |
645 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
646 | { | |
647 | char *cp; | |
648 | ||
649 | /* | |
650 | * Remove the @bla or /bla from the end of the name to get the parent. | |
651 | */ | |
652 | (void) strncpy(parent, datasetname, parentsize); | |
653 | cp = strrchr(parent, '@'); | |
654 | if (cp != NULL) { | |
655 | cp[0] = '\0'; | |
656 | } else { | |
657 | cp = strrchr(parent, '/'); | |
658 | if (cp == NULL) | |
659 | return (ENOENT); | |
660 | cp[0] = '\0'; | |
661 | } | |
662 | ||
663 | return (0); | |
664 | } | |
665 | ||
666 | int | |
667 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
668 | { | |
669 | int error; | |
670 | ||
671 | if ((error = zfs_secpolicy_write_perms(name, | |
672 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
673 | return (error); | |
674 | ||
675 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
676 | } | |
677 | ||
678 | static int | |
679 | zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr) | |
680 | { | |
681 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
682 | } | |
683 | ||
684 | /* | |
428870ff BB |
685 | * Destroying snapshots with delegated permissions requires |
686 | * descendent mount and destroy permissions. | |
34dc7c2f | 687 | */ |
34dc7c2f | 688 | static int |
330d06f9 | 689 | zfs_secpolicy_destroy_recursive(zfs_cmd_t *zc, cred_t *cr) |
34dc7c2f | 690 | { |
428870ff BB |
691 | int error; |
692 | char *dsname; | |
693 | ||
330d06f9 | 694 | dsname = kmem_asprintf("%s@", zc->zc_name); |
428870ff BB |
695 | |
696 | error = zfs_secpolicy_destroy_perms(dsname, cr); | |
ca525220 MM |
697 | if (error == ENOENT) |
698 | error = zfs_secpolicy_destroy_perms(zc->zc_name, cr); | |
428870ff BB |
699 | |
700 | strfree(dsname); | |
701 | return (error); | |
34dc7c2f BB |
702 | } |
703 | ||
704 | int | |
705 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
706 | { | |
428870ff | 707 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
708 | int error; |
709 | ||
710 | if ((error = zfs_secpolicy_write_perms(from, | |
711 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
712 | return (error); | |
713 | ||
714 | if ((error = zfs_secpolicy_write_perms(from, | |
715 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
716 | return (error); | |
717 | ||
718 | if ((error = zfs_get_parent(to, parentname, | |
719 | sizeof (parentname))) != 0) | |
720 | return (error); | |
721 | ||
722 | if ((error = zfs_secpolicy_write_perms(parentname, | |
723 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
724 | return (error); | |
725 | ||
726 | if ((error = zfs_secpolicy_write_perms(parentname, | |
727 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
728 | return (error); | |
729 | ||
730 | return (error); | |
731 | } | |
732 | ||
733 | static int | |
734 | zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr) | |
735 | { | |
736 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
737 | } | |
738 | ||
739 | static int | |
740 | zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) | |
741 | { | |
428870ff | 742 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
743 | objset_t *clone; |
744 | int error; | |
745 | ||
746 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
747 | ZFS_DELEG_PERM_PROMOTE, cr); | |
748 | if (error) | |
749 | return (error); | |
750 | ||
428870ff | 751 | error = dmu_objset_hold(zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
752 | |
753 | if (error == 0) { | |
754 | dsl_dataset_t *pclone = NULL; | |
755 | dsl_dir_t *dd; | |
428870ff | 756 | dd = clone->os_dsl_dataset->ds_dir; |
34dc7c2f BB |
757 | |
758 | rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); | |
b128c09f BB |
759 | error = dsl_dataset_hold_obj(dd->dd_pool, |
760 | dd->dd_phys->dd_origin_obj, FTAG, &pclone); | |
34dc7c2f BB |
761 | rw_exit(&dd->dd_pool->dp_config_rwlock); |
762 | if (error) { | |
428870ff | 763 | dmu_objset_rele(clone, FTAG); |
34dc7c2f BB |
764 | return (error); |
765 | } | |
766 | ||
767 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
768 | ZFS_DELEG_PERM_MOUNT, cr); | |
769 | ||
770 | dsl_dataset_name(pclone, parentname); | |
428870ff | 771 | dmu_objset_rele(clone, FTAG); |
b128c09f | 772 | dsl_dataset_rele(pclone, FTAG); |
34dc7c2f BB |
773 | if (error == 0) |
774 | error = zfs_secpolicy_write_perms(parentname, | |
775 | ZFS_DELEG_PERM_PROMOTE, cr); | |
776 | } | |
777 | return (error); | |
778 | } | |
779 | ||
780 | static int | |
781 | zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr) | |
782 | { | |
783 | int error; | |
784 | ||
785 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
786 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
787 | return (error); | |
788 | ||
789 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
790 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
791 | return (error); | |
792 | ||
793 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
794 | ZFS_DELEG_PERM_CREATE, cr)); | |
795 | } | |
796 | ||
797 | int | |
798 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
799 | { | |
428870ff BB |
800 | return (zfs_secpolicy_write_perms(name, |
801 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
802 | } |
803 | ||
804 | static int | |
805 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
806 | { | |
807 | ||
808 | return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr)); | |
809 | } | |
810 | ||
811 | static int | |
812 | zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr) | |
813 | { | |
428870ff BB |
814 | char parentname[MAXNAMELEN]; |
815 | int error; | |
34dc7c2f BB |
816 | |
817 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
818 | sizeof (parentname))) != 0) | |
819 | return (error); | |
820 | ||
821 | if (zc->zc_value[0] != '\0') { | |
822 | if ((error = zfs_secpolicy_write_perms(zc->zc_value, | |
823 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
824 | return (error); | |
825 | } | |
826 | ||
827 | if ((error = zfs_secpolicy_write_perms(parentname, | |
828 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
829 | return (error); | |
830 | ||
831 | error = zfs_secpolicy_write_perms(parentname, | |
832 | ZFS_DELEG_PERM_MOUNT, cr); | |
833 | ||
834 | return (error); | |
835 | } | |
836 | ||
34dc7c2f BB |
837 | /* |
838 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
839 | * SYS_CONFIG privilege, which is not available in a local zone. | |
840 | */ | |
841 | /* ARGSUSED */ | |
842 | static int | |
843 | zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr) | |
844 | { | |
845 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
846 | return (EPERM); | |
847 | ||
848 | return (0); | |
849 | } | |
850 | ||
572e2857 BB |
851 | /* |
852 | * Policy for object to name lookups. | |
853 | */ | |
854 | /* ARGSUSED */ | |
855 | static int | |
856 | zfs_secpolicy_diff(zfs_cmd_t *zc, cred_t *cr) | |
857 | { | |
858 | int error; | |
859 | ||
860 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
861 | return (0); | |
862 | ||
863 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
864 | return (error); | |
865 | } | |
866 | ||
34dc7c2f BB |
867 | /* |
868 | * Policy for fault injection. Requires all privileges. | |
869 | */ | |
870 | /* ARGSUSED */ | |
871 | static int | |
872 | zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr) | |
873 | { | |
874 | return (secpolicy_zinject(cr)); | |
875 | } | |
876 | ||
877 | static int | |
878 | zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr) | |
879 | { | |
880 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
881 | ||
882 | if (prop == ZPROP_INVAL) { | |
883 | if (!zfs_prop_user(zc->zc_value)) | |
884 | return (EINVAL); | |
885 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
886 | ZFS_DELEG_PERM_USERPROP, cr)); | |
887 | } else { | |
428870ff BB |
888 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
889 | NULL, cr)); | |
34dc7c2f BB |
890 | } |
891 | } | |
892 | ||
9babb374 BB |
893 | static int |
894 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, cred_t *cr) | |
895 | { | |
896 | int err = zfs_secpolicy_read(zc, cr); | |
897 | if (err) | |
898 | return (err); | |
899 | ||
900 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
901 | return (EINVAL); | |
902 | ||
903 | if (zc->zc_value[0] == 0) { | |
904 | /* | |
905 | * They are asking about a posix uid/gid. If it's | |
906 | * themself, allow it. | |
907 | */ | |
908 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
909 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
910 | if (zc->zc_guid == crgetuid(cr)) | |
911 | return (0); | |
912 | } else { | |
913 | if (groupmember(zc->zc_guid, cr)) | |
914 | return (0); | |
915 | } | |
916 | } | |
917 | ||
918 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
919 | userquota_perms[zc->zc_objset_type], cr)); | |
920 | } | |
921 | ||
922 | static int | |
923 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr) | |
924 | { | |
925 | int err = zfs_secpolicy_read(zc, cr); | |
926 | if (err) | |
927 | return (err); | |
928 | ||
929 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
930 | return (EINVAL); | |
931 | ||
932 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
933 | userquota_perms[zc->zc_objset_type], cr)); | |
934 | } | |
935 | ||
936 | static int | |
937 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr) | |
938 | { | |
428870ff BB |
939 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
940 | NULL, cr)); | |
9babb374 BB |
941 | } |
942 | ||
45d1cae3 BB |
943 | static int |
944 | zfs_secpolicy_hold(zfs_cmd_t *zc, cred_t *cr) | |
945 | { | |
946 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
947 | ZFS_DELEG_PERM_HOLD, cr)); | |
948 | } | |
949 | ||
950 | static int | |
951 | zfs_secpolicy_release(zfs_cmd_t *zc, cred_t *cr) | |
952 | { | |
953 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
954 | ZFS_DELEG_PERM_RELEASE, cr)); | |
955 | } | |
956 | ||
572e2857 BB |
957 | /* |
958 | * Policy for allowing temporary snapshots to be taken or released | |
959 | */ | |
960 | static int | |
961 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
962 | { | |
963 | /* | |
964 | * A temporary snapshot is the same as a snapshot, | |
965 | * hold, destroy and release all rolled into one. | |
966 | * Delegated diff alone is sufficient that we allow this. | |
967 | */ | |
968 | int error; | |
969 | ||
970 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
971 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
972 | return (0); | |
973 | ||
974 | error = zfs_secpolicy_snapshot(zc, cr); | |
975 | if (!error) | |
976 | error = zfs_secpolicy_hold(zc, cr); | |
977 | if (!error) | |
978 | error = zfs_secpolicy_release(zc, cr); | |
979 | if (!error) | |
980 | error = zfs_secpolicy_destroy(zc, cr); | |
981 | return (error); | |
982 | } | |
983 | ||
34dc7c2f BB |
984 | /* |
985 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
986 | */ | |
987 | static int | |
9babb374 | 988 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
989 | { |
990 | char *packed; | |
991 | int error; | |
992 | nvlist_t *list = NULL; | |
993 | ||
994 | /* | |
995 | * Read in and unpack the user-supplied nvlist. | |
996 | */ | |
997 | if (size == 0) | |
998 | return (EINVAL); | |
999 | ||
00b46022 | 1000 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 1001 | |
9babb374 BB |
1002 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1003 | iflag)) != 0) { | |
34dc7c2f BB |
1004 | kmem_free(packed, size); |
1005 | return (error); | |
1006 | } | |
1007 | ||
1008 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
1009 | kmem_free(packed, size); | |
1010 | return (error); | |
1011 | } | |
1012 | ||
1013 | kmem_free(packed, size); | |
1014 | ||
1015 | *nvp = list; | |
1016 | return (0); | |
1017 | } | |
1018 | ||
428870ff BB |
1019 | static int |
1020 | fit_error_list(zfs_cmd_t *zc, nvlist_t **errors) | |
1021 | { | |
1022 | size_t size; | |
1023 | ||
1024 | VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1025 | ||
1026 | if (size > zc->zc_nvlist_dst_size) { | |
1027 | nvpair_t *more_errors; | |
1028 | int n = 0; | |
1029 | ||
1030 | if (zc->zc_nvlist_dst_size < 1024) | |
1031 | return (ENOMEM); | |
1032 | ||
1033 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0); | |
1034 | more_errors = nvlist_prev_nvpair(*errors, NULL); | |
1035 | ||
1036 | do { | |
1037 | nvpair_t *pair = nvlist_prev_nvpair(*errors, | |
1038 | more_errors); | |
1039 | VERIFY(nvlist_remove_nvpair(*errors, pair) == 0); | |
1040 | n++; | |
1041 | VERIFY(nvlist_size(*errors, &size, | |
1042 | NV_ENCODE_NATIVE) == 0); | |
1043 | } while (size > zc->zc_nvlist_dst_size); | |
1044 | ||
1045 | VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0); | |
1046 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0); | |
1047 | ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1048 | ASSERT(size <= zc->zc_nvlist_dst_size); | |
1049 | } | |
1050 | ||
1051 | return (0); | |
1052 | } | |
1053 | ||
34dc7c2f BB |
1054 | static int |
1055 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1056 | { | |
1057 | char *packed = NULL; | |
428870ff | 1058 | int error = 0; |
34dc7c2f | 1059 | size_t size; |
34dc7c2f BB |
1060 | |
1061 | VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); | |
1062 | ||
1063 | if (size > zc->zc_nvlist_dst_size) { | |
1064 | error = ENOMEM; | |
1065 | } else { | |
00b46022 | 1066 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
1067 | VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, |
1068 | KM_SLEEP) == 0); | |
428870ff BB |
1069 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1070 | size, zc->zc_iflags) != 0) | |
1071 | error = EFAULT; | |
34dc7c2f BB |
1072 | kmem_free(packed, size); |
1073 | } | |
1074 | ||
1075 | zc->zc_nvlist_dst_size = size; | |
1076 | return (error); | |
1077 | } | |
1078 | ||
9babb374 | 1079 | static int |
3558fd73 | 1080 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1081 | { |
1082 | objset_t *os; | |
1083 | int error; | |
1084 | ||
428870ff | 1085 | error = dmu_objset_hold(dsname, FTAG, &os); |
9babb374 BB |
1086 | if (error) |
1087 | return (error); | |
428870ff BB |
1088 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1089 | dmu_objset_rele(os, FTAG); | |
1090 | return (EINVAL); | |
1091 | } | |
9babb374 | 1092 | |
428870ff | 1093 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1094 | *zsbp = dmu_objset_get_user(os); |
2cf7f52b | 1095 | if (*zsbp && (*zsbp)->z_sb) { |
61f218b0 | 1096 | atomic_inc(&((*zsbp)->z_sb->s_active)); |
9babb374 BB |
1097 | } else { |
1098 | error = ESRCH; | |
1099 | } | |
428870ff BB |
1100 | mutex_exit(&os->os_user_ptr_lock); |
1101 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1102 | return (error); |
1103 | } | |
1104 | ||
1105 | /* | |
3558fd73 | 1106 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1107 | * case its z_sb will be NULL, and it will be opened as the owner. |
9babb374 BB |
1108 | */ |
1109 | static int | |
3558fd73 | 1110 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1111 | { |
1112 | int error = 0; | |
9babb374 | 1113 | |
3558fd73 BB |
1114 | if (get_zfs_sb(name, zsbp) != 0) |
1115 | error = zfs_sb_create(name, zsbp); | |
9babb374 | 1116 | if (error == 0) { |
3558fd73 | 1117 | rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1118 | RW_READER, tag); |
3558fd73 | 1119 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1120 | /* |
1121 | * XXX we could probably try again, since the unmounting | |
1122 | * thread should be just about to disassociate the | |
1123 | * objset from the zfsvfs. | |
1124 | */ | |
3558fd73 | 1125 | rrw_exit(&(*zsbp)->z_teardown_lock, tag); |
9babb374 BB |
1126 | return (EBUSY); |
1127 | } | |
1128 | } | |
1129 | return (error); | |
1130 | } | |
1131 | ||
1132 | static void | |
3558fd73 | 1133 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1134 | { |
3558fd73 | 1135 | rrw_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1136 | |
2cf7f52b BB |
1137 | if (zsb->z_sb) { |
1138 | deactivate_super(zsb->z_sb); | |
9babb374 | 1139 | } else { |
3558fd73 BB |
1140 | dmu_objset_disown(zsb->z_os, zsb); |
1141 | zfs_sb_free(zsb); | |
9babb374 BB |
1142 | } |
1143 | } | |
1144 | ||
34dc7c2f BB |
1145 | static int |
1146 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1147 | { | |
1148 | int error; | |
1149 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1150 | nvlist_t *rootprops = NULL; |
1151 | nvlist_t *zplprops = NULL; | |
34dc7c2f BB |
1152 | char *buf; |
1153 | ||
c65aa5b2 BB |
1154 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1155 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1156 | return (error); |
1157 | ||
1158 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1159 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1160 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1161 | nvlist_free(config); |
1162 | return (error); | |
1163 | } | |
1164 | ||
b128c09f BB |
1165 | if (props) { |
1166 | nvlist_t *nvl = NULL; | |
1167 | uint64_t version = SPA_VERSION; | |
1168 | ||
1169 | (void) nvlist_lookup_uint64(props, | |
1170 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
1171 | if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) { | |
1172 | error = EINVAL; | |
1173 | goto pool_props_bad; | |
1174 | } | |
1175 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1176 | if (nvl) { | |
1177 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1178 | if (error != 0) { | |
1179 | nvlist_free(config); | |
1180 | nvlist_free(props); | |
1181 | return (error); | |
1182 | } | |
1183 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1184 | } | |
1185 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1186 | error = zfs_fill_zplprops_root(version, rootprops, | |
1187 | zplprops, NULL); | |
1188 | if (error) | |
1189 | goto pool_props_bad; | |
1190 | } | |
1191 | ||
34dc7c2f BB |
1192 | buf = history_str_get(zc); |
1193 | ||
b128c09f BB |
1194 | error = spa_create(zc->zc_name, config, props, buf, zplprops); |
1195 | ||
1196 | /* | |
1197 | * Set the remaining root properties | |
1198 | */ | |
428870ff BB |
1199 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1200 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1201 | (void) spa_destroy(zc->zc_name); |
34dc7c2f BB |
1202 | |
1203 | if (buf != NULL) | |
1204 | history_str_free(buf); | |
1205 | ||
b128c09f BB |
1206 | pool_props_bad: |
1207 | nvlist_free(rootprops); | |
1208 | nvlist_free(zplprops); | |
34dc7c2f | 1209 | nvlist_free(config); |
b128c09f | 1210 | nvlist_free(props); |
34dc7c2f BB |
1211 | |
1212 | return (error); | |
1213 | } | |
1214 | ||
1215 | static int | |
1216 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1217 | { | |
1218 | int error; | |
1219 | zfs_log_history(zc); | |
1220 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1221 | if (error == 0) |
1222 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1223 | return (error); |
1224 | } | |
1225 | ||
1226 | static int | |
1227 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1228 | { | |
34dc7c2f BB |
1229 | nvlist_t *config, *props = NULL; |
1230 | uint64_t guid; | |
428870ff | 1231 | int error; |
34dc7c2f BB |
1232 | |
1233 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1234 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1235 | return (error); |
1236 | ||
1237 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1238 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1239 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1240 | nvlist_free(config); |
1241 | return (error); | |
1242 | } | |
1243 | ||
1244 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1245 | guid != zc->zc_guid) | |
1246 | error = EINVAL; | |
1247 | else | |
572e2857 | 1248 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1249 | |
572e2857 BB |
1250 | if (zc->zc_nvlist_dst != 0) { |
1251 | int err; | |
1252 | ||
1253 | if ((err = put_nvlist(zc, config)) != 0) | |
1254 | error = err; | |
1255 | } | |
428870ff | 1256 | |
60101509 BB |
1257 | if (error == 0) |
1258 | zvol_create_minors(zc->zc_name); | |
1259 | ||
34dc7c2f BB |
1260 | nvlist_free(config); |
1261 | ||
1262 | if (props) | |
1263 | nvlist_free(props); | |
1264 | ||
1265 | return (error); | |
1266 | } | |
1267 | ||
1268 | static int | |
1269 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1270 | { | |
1271 | int error; | |
b128c09f | 1272 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1273 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1274 | |
34dc7c2f | 1275 | zfs_log_history(zc); |
fb5f0bc8 | 1276 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1277 | if (error == 0) |
1278 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1279 | return (error); |
1280 | } | |
1281 | ||
1282 | static int | |
1283 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1284 | { | |
1285 | nvlist_t *configs; | |
1286 | int error; | |
1287 | ||
1288 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
1289 | return (EEXIST); | |
1290 | ||
1291 | error = put_nvlist(zc, configs); | |
1292 | ||
1293 | nvlist_free(configs); | |
1294 | ||
1295 | return (error); | |
1296 | } | |
1297 | ||
1298 | static int | |
1299 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1300 | { | |
1301 | nvlist_t *config; | |
1302 | int error; | |
1303 | int ret = 0; | |
1304 | ||
1305 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1306 | sizeof (zc->zc_value)); | |
1307 | ||
1308 | if (config != NULL) { | |
1309 | ret = put_nvlist(zc, config); | |
1310 | nvlist_free(config); | |
1311 | ||
1312 | /* | |
1313 | * The config may be present even if 'error' is non-zero. | |
1314 | * In this case we return success, and preserve the real errno | |
1315 | * in 'zc_cookie'. | |
1316 | */ | |
1317 | zc->zc_cookie = error; | |
1318 | } else { | |
1319 | ret = error; | |
1320 | } | |
1321 | ||
1322 | return (ret); | |
1323 | } | |
1324 | ||
1325 | /* | |
1326 | * Try to import the given pool, returning pool stats as appropriate so that | |
1327 | * user land knows which devices are available and overall pool health. | |
1328 | */ | |
1329 | static int | |
1330 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1331 | { | |
1332 | nvlist_t *tryconfig, *config; | |
1333 | int error; | |
1334 | ||
1335 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1336 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1337 | return (error); |
1338 | ||
1339 | config = spa_tryimport(tryconfig); | |
1340 | ||
1341 | nvlist_free(tryconfig); | |
1342 | ||
1343 | if (config == NULL) | |
1344 | return (EINVAL); | |
1345 | ||
1346 | error = put_nvlist(zc, config); | |
1347 | nvlist_free(config); | |
1348 | ||
1349 | return (error); | |
1350 | } | |
1351 | ||
428870ff BB |
1352 | /* |
1353 | * inputs: | |
1354 | * zc_name name of the pool | |
1355 | * zc_cookie scan func (pool_scan_func_t) | |
1356 | */ | |
34dc7c2f | 1357 | static int |
428870ff | 1358 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1359 | { |
1360 | spa_t *spa; | |
1361 | int error; | |
1362 | ||
1363 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1364 | return (error); | |
1365 | ||
428870ff BB |
1366 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1367 | error = spa_scan_stop(spa); | |
1368 | else | |
1369 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1370 | |
1371 | spa_close(spa, FTAG); | |
1372 | ||
1373 | return (error); | |
1374 | } | |
1375 | ||
1376 | static int | |
1377 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1378 | { | |
1379 | spa_t *spa; | |
1380 | int error; | |
1381 | ||
1382 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1383 | if (error == 0) { | |
1384 | spa_freeze(spa); | |
1385 | spa_close(spa, FTAG); | |
1386 | } | |
1387 | return (error); | |
1388 | } | |
1389 | ||
1390 | static int | |
1391 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1392 | { | |
1393 | spa_t *spa; | |
1394 | int error; | |
1395 | ||
1396 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1397 | return (error); | |
1398 | ||
1399 | if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) { | |
1400 | spa_close(spa, FTAG); | |
1401 | return (EINVAL); | |
1402 | } | |
1403 | ||
1404 | spa_upgrade(spa, zc->zc_cookie); | |
1405 | spa_close(spa, FTAG); | |
1406 | ||
1407 | return (error); | |
1408 | } | |
1409 | ||
1410 | static int | |
1411 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1412 | { | |
1413 | spa_t *spa; | |
1414 | char *hist_buf; | |
1415 | uint64_t size; | |
1416 | int error; | |
1417 | ||
1418 | if ((size = zc->zc_history_len) == 0) | |
1419 | return (EINVAL); | |
1420 | ||
1421 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1422 | return (error); | |
1423 | ||
1424 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1425 | spa_close(spa, FTAG); | |
1426 | return (ENOTSUP); | |
1427 | } | |
1428 | ||
34b84cb8 | 1429 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1430 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1431 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1432 | error = ddi_copyout(hist_buf, |
1433 | (void *)(uintptr_t)zc->zc_history, | |
1434 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1435 | } |
1436 | ||
1437 | spa_close(spa, FTAG); | |
34b84cb8 | 1438 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1439 | return (error); |
1440 | } | |
1441 | ||
3541dc6d GA |
1442 | static int |
1443 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1444 | { | |
1445 | spa_t *spa; | |
1446 | int error; | |
1447 | ||
1448 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1449 | if (error == 0) { | |
1450 | error = spa_change_guid(spa); | |
1451 | spa_close(spa, FTAG); | |
1452 | } | |
1453 | return (error); | |
1454 | } | |
1455 | ||
34dc7c2f BB |
1456 | static int |
1457 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1458 | { | |
1459 | int error; | |
1460 | ||
c65aa5b2 | 1461 | if ((error = dsl_dsobj_to_dsname(zc->zc_name,zc->zc_obj,zc->zc_value))) |
34dc7c2f BB |
1462 | return (error); |
1463 | ||
1464 | return (0); | |
1465 | } | |
1466 | ||
428870ff BB |
1467 | /* |
1468 | * inputs: | |
1469 | * zc_name name of filesystem | |
1470 | * zc_obj object to find | |
1471 | * | |
1472 | * outputs: | |
1473 | * zc_value name of object | |
1474 | */ | |
34dc7c2f BB |
1475 | static int |
1476 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1477 | { | |
428870ff | 1478 | objset_t *os; |
34dc7c2f BB |
1479 | int error; |
1480 | ||
428870ff BB |
1481 | /* XXX reading from objset not owned */ |
1482 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1483 | return (error); |
428870ff BB |
1484 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1485 | dmu_objset_rele(os, FTAG); | |
1486 | return (EINVAL); | |
1487 | } | |
1488 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1489 | sizeof (zc->zc_value)); |
428870ff | 1490 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1491 | |
1492 | return (error); | |
1493 | } | |
1494 | ||
572e2857 BB |
1495 | /* |
1496 | * inputs: | |
1497 | * zc_name name of filesystem | |
1498 | * zc_obj object to find | |
1499 | * | |
1500 | * outputs: | |
1501 | * zc_stat stats on object | |
1502 | * zc_value path to object | |
1503 | */ | |
1504 | static int | |
1505 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1506 | { | |
1507 | objset_t *os; | |
1508 | int error; | |
1509 | ||
1510 | /* XXX reading from objset not owned */ | |
1511 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1512 | return (error); | |
1513 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1514 | dmu_objset_rele(os, FTAG); | |
1515 | return (EINVAL); | |
1516 | } | |
1517 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1518 | sizeof (zc->zc_value)); | |
1519 | dmu_objset_rele(os, FTAG); | |
1520 | ||
1521 | return (error); | |
1522 | } | |
1523 | ||
34dc7c2f BB |
1524 | static int |
1525 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1526 | { | |
1527 | spa_t *spa; | |
1528 | int error; | |
1529 | nvlist_t *config, **l2cache, **spares; | |
1530 | uint_t nl2cache = 0, nspares = 0; | |
1531 | ||
1532 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1533 | if (error != 0) | |
1534 | return (error); | |
1535 | ||
1536 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1537 | zc->zc_iflags, &config); |
34dc7c2f BB |
1538 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, |
1539 | &l2cache, &nl2cache); | |
1540 | ||
1541 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, | |
1542 | &spares, &nspares); | |
1543 | ||
1544 | /* | |
1545 | * A root pool with concatenated devices is not supported. | |
1546 | * Thus, can not add a device to a root pool. | |
1547 | * | |
1548 | * Intent log device can not be added to a rootpool because | |
1549 | * during mountroot, zil is replayed, a seperated log device | |
1550 | * can not be accessed during the mountroot time. | |
1551 | * | |
1552 | * l2cache and spare devices are ok to be added to a rootpool. | |
1553 | */ | |
428870ff BB |
1554 | if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { |
1555 | nvlist_free(config); | |
34dc7c2f BB |
1556 | spa_close(spa, FTAG); |
1557 | return (EDOM); | |
1558 | } | |
1559 | ||
1560 | if (error == 0) { | |
1561 | error = spa_vdev_add(spa, config); | |
1562 | nvlist_free(config); | |
1563 | } | |
1564 | spa_close(spa, FTAG); | |
1565 | return (error); | |
1566 | } | |
1567 | ||
428870ff BB |
1568 | /* |
1569 | * inputs: | |
1570 | * zc_name name of the pool | |
1571 | * zc_nvlist_conf nvlist of devices to remove | |
1572 | * zc_cookie to stop the remove? | |
1573 | */ | |
34dc7c2f BB |
1574 | static int |
1575 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1576 | { | |
1577 | spa_t *spa; | |
1578 | int error; | |
1579 | ||
1580 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1581 | if (error != 0) | |
1582 | return (error); | |
1583 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1584 | spa_close(spa, FTAG); | |
1585 | return (error); | |
1586 | } | |
1587 | ||
1588 | static int | |
1589 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1590 | { | |
1591 | spa_t *spa; | |
1592 | int error; | |
1593 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1594 | ||
1595 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1596 | return (error); | |
1597 | switch (zc->zc_cookie) { | |
1598 | case VDEV_STATE_ONLINE: | |
1599 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1600 | break; | |
1601 | ||
1602 | case VDEV_STATE_OFFLINE: | |
1603 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1604 | break; | |
1605 | ||
1606 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1607 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1608 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1609 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1610 | ||
1611 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1612 | break; |
1613 | ||
1614 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1615 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1616 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1617 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1618 | ||
1619 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1620 | break; |
1621 | ||
1622 | default: | |
1623 | error = EINVAL; | |
1624 | } | |
1625 | zc->zc_cookie = newstate; | |
1626 | spa_close(spa, FTAG); | |
1627 | return (error); | |
1628 | } | |
1629 | ||
1630 | static int | |
1631 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1632 | { | |
1633 | spa_t *spa; | |
1634 | int replacing = zc->zc_cookie; | |
1635 | nvlist_t *config; | |
1636 | int error; | |
1637 | ||
1638 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1639 | return (error); | |
1640 | ||
1641 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1642 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1643 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1644 | nvlist_free(config); | |
1645 | } | |
1646 | ||
1647 | spa_close(spa, FTAG); | |
1648 | return (error); | |
1649 | } | |
1650 | ||
1651 | static int | |
1652 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1653 | { | |
1654 | spa_t *spa; | |
1655 | int error; | |
1656 | ||
1657 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1658 | return (error); | |
1659 | ||
fb5f0bc8 | 1660 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1661 | |
1662 | spa_close(spa, FTAG); | |
1663 | return (error); | |
1664 | } | |
1665 | ||
428870ff BB |
1666 | static int |
1667 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1668 | { | |
1669 | spa_t *spa; | |
1670 | nvlist_t *config, *props = NULL; | |
1671 | int error; | |
1672 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1673 | ||
1674 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1675 | return (error); | |
1676 | ||
c65aa5b2 BB |
1677 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1678 | zc->zc_iflags, &config))) { | |
428870ff BB |
1679 | spa_close(spa, FTAG); |
1680 | return (error); | |
1681 | } | |
1682 | ||
1683 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1684 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1685 | zc->zc_iflags, &props))) { | |
1686 | spa_close(spa, FTAG); | |
1687 | nvlist_free(config); | |
1688 | return (error); | |
1689 | } | |
1690 | ||
1691 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1692 | ||
1693 | spa_close(spa, FTAG); | |
1694 | ||
1695 | nvlist_free(config); | |
1696 | nvlist_free(props); | |
1697 | ||
1698 | return (error); | |
1699 | } | |
1700 | ||
34dc7c2f BB |
1701 | static int |
1702 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1703 | { | |
1704 | spa_t *spa; | |
1705 | char *path = zc->zc_value; | |
1706 | uint64_t guid = zc->zc_guid; | |
1707 | int error; | |
1708 | ||
1709 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1710 | if (error != 0) | |
1711 | return (error); | |
1712 | ||
1713 | error = spa_vdev_setpath(spa, guid, path); | |
1714 | spa_close(spa, FTAG); | |
1715 | return (error); | |
1716 | } | |
1717 | ||
9babb374 BB |
1718 | static int |
1719 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1720 | { | |
1721 | spa_t *spa; | |
1722 | char *fru = zc->zc_value; | |
1723 | uint64_t guid = zc->zc_guid; | |
1724 | int error; | |
1725 | ||
1726 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1727 | if (error != 0) | |
1728 | return (error); | |
1729 | ||
1730 | error = spa_vdev_setfru(spa, guid, fru); | |
1731 | spa_close(spa, FTAG); | |
1732 | return (error); | |
1733 | } | |
1734 | ||
34dc7c2f | 1735 | static int |
572e2857 | 1736 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 1737 | { |
572e2857 | 1738 | int error = 0; |
34dc7c2f BB |
1739 | nvlist_t *nv; |
1740 | ||
34dc7c2f BB |
1741 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
1742 | ||
1743 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 1744 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
1745 | dmu_objset_stats(os, nv); |
1746 | /* | |
1747 | * NB: zvol_get_stats() will read the objset contents, | |
1748 | * which we aren't supposed to do with a | |
b128c09f | 1749 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 1750 | * inconsistent. So this is a bit of a workaround... |
428870ff | 1751 | * XXX reading with out owning |
34dc7c2f | 1752 | */ |
330d06f9 MA |
1753 | if (!zc->zc_objset_stats.dds_inconsistent && |
1754 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
1755 | error = zvol_get_stats(os, nv); | |
1756 | if (error == EIO) | |
1757 | return (error); | |
1758 | VERIFY3S(error, ==, 0); | |
34dc7c2f | 1759 | } |
8a8f5c6b BB |
1760 | if (error == 0) |
1761 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
1762 | nvlist_free(nv); |
1763 | } | |
1764 | ||
572e2857 BB |
1765 | return (error); |
1766 | } | |
1767 | ||
1768 | /* | |
1769 | * inputs: | |
1770 | * zc_name name of filesystem | |
1771 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1772 | * | |
1773 | * outputs: | |
1774 | * zc_objset_stats stats | |
1775 | * zc_nvlist_dst property nvlist | |
1776 | * zc_nvlist_dst_size size of property nvlist | |
1777 | */ | |
1778 | static int | |
1779 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
1780 | { | |
1781 | objset_t *os = NULL; | |
1782 | int error; | |
1783 | ||
c65aa5b2 | 1784 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
572e2857 BB |
1785 | return (error); |
1786 | ||
1787 | error = zfs_ioc_objset_stats_impl(zc, os); | |
1788 | ||
428870ff | 1789 | dmu_objset_rele(os, FTAG); |
572e2857 | 1790 | |
428870ff BB |
1791 | return (error); |
1792 | } | |
1793 | ||
1794 | /* | |
1795 | * inputs: | |
1796 | * zc_name name of filesystem | |
1797 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1798 | * | |
1799 | * outputs: | |
1800 | * zc_nvlist_dst received property nvlist | |
1801 | * zc_nvlist_dst_size size of received property nvlist | |
1802 | * | |
1803 | * Gets received properties (distinct from local properties on or after | |
1804 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
1805 | * local property values. | |
1806 | */ | |
1807 | static int | |
26685276 | 1808 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff BB |
1809 | { |
1810 | objset_t *os = NULL; | |
1811 | int error; | |
1812 | nvlist_t *nv; | |
1813 | ||
c65aa5b2 | 1814 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
428870ff BB |
1815 | return (error); |
1816 | ||
1817 | /* | |
1818 | * Without this check, we would return local property values if the | |
1819 | * caller has not already received properties on or after | |
1820 | * SPA_VERSION_RECVD_PROPS. | |
1821 | */ | |
1822 | if (!dsl_prop_get_hasrecvd(os)) { | |
1823 | dmu_objset_rele(os, FTAG); | |
1824 | return (ENOTSUP); | |
1825 | } | |
1826 | ||
1827 | if (zc->zc_nvlist_dst != 0 && | |
1828 | (error = dsl_prop_get_received(os, &nv)) == 0) { | |
1829 | error = put_nvlist(zc, nv); | |
1830 | nvlist_free(nv); | |
1831 | } | |
1832 | ||
1833 | dmu_objset_rele(os, FTAG); | |
34dc7c2f BB |
1834 | return (error); |
1835 | } | |
1836 | ||
1837 | static int | |
1838 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
1839 | { | |
1840 | uint64_t value; | |
1841 | int error; | |
1842 | ||
1843 | /* | |
1844 | * zfs_get_zplprop() will either find a value or give us | |
1845 | * the default value (if there is one). | |
1846 | */ | |
1847 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
1848 | return (error); | |
1849 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
1850 | return (0); | |
1851 | } | |
1852 | ||
1853 | /* | |
1854 | * inputs: | |
1855 | * zc_name name of filesystem | |
1856 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
1857 | * | |
1858 | * outputs: | |
1859 | * zc_nvlist_dst zpl property nvlist | |
1860 | * zc_nvlist_dst_size size of zpl property nvlist | |
1861 | */ | |
1862 | static int | |
1863 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
1864 | { | |
1865 | objset_t *os; | |
1866 | int err; | |
1867 | ||
428870ff | 1868 | /* XXX reading without owning */ |
c65aa5b2 | 1869 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
1870 | return (err); |
1871 | ||
1872 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
1873 | ||
1874 | /* | |
1875 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
1876 | * which we aren't supposed to do with a DS_MODE_USER |
1877 | * hold, because it could be inconsistent. | |
34dc7c2f | 1878 | */ |
b8864a23 | 1879 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
1880 | !zc->zc_objset_stats.dds_inconsistent && |
1881 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
1882 | nvlist_t *nv; | |
1883 | ||
1884 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1885 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
1886 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
1887 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
1888 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
1889 | err = put_nvlist(zc, nv); | |
1890 | nvlist_free(nv); | |
1891 | } else { | |
1892 | err = ENOENT; | |
1893 | } | |
428870ff | 1894 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1895 | return (err); |
1896 | } | |
1897 | ||
9babb374 BB |
1898 | static boolean_t |
1899 | dataset_name_hidden(const char *name) | |
1900 | { | |
1901 | /* | |
1902 | * Skip over datasets that are not visible in this zone, | |
1903 | * internal datasets (which have a $ in their name), and | |
1904 | * temporary datasets (which have a % in their name). | |
1905 | */ | |
1906 | if (strchr(name, '$') != NULL) | |
1907 | return (B_TRUE); | |
1908 | if (strchr(name, '%') != NULL) | |
1909 | return (B_TRUE); | |
1910 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
1911 | return (B_TRUE); | |
1912 | return (B_FALSE); | |
1913 | } | |
1914 | ||
34dc7c2f BB |
1915 | /* |
1916 | * inputs: | |
1917 | * zc_name name of filesystem | |
1918 | * zc_cookie zap cursor | |
1919 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1920 | * | |
1921 | * outputs: | |
1922 | * zc_name name of next filesystem | |
9babb374 | 1923 | * zc_cookie zap cursor |
34dc7c2f BB |
1924 | * zc_objset_stats stats |
1925 | * zc_nvlist_dst property nvlist | |
1926 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1927 | */ |
1928 | static int | |
1929 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
1930 | { | |
1931 | objset_t *os; | |
1932 | int error; | |
1933 | char *p; | |
428870ff | 1934 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 1935 | |
428870ff | 1936 | top: |
c65aa5b2 | 1937 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f BB |
1938 | if (error == ENOENT) |
1939 | error = ESRCH; | |
1940 | return (error); | |
1941 | } | |
1942 | ||
1943 | p = strrchr(zc->zc_name, '/'); | |
1944 | if (p == NULL || p[1] != '\0') | |
1945 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
1946 | p = zc->zc_name + strlen(zc->zc_name); | |
1947 | ||
9babb374 BB |
1948 | /* |
1949 | * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0 | |
1950 | * but is not declared void because its called by dmu_objset_find(). | |
1951 | */ | |
d164b209 BB |
1952 | if (zc->zc_cookie == 0) { |
1953 | uint64_t cookie = 0; | |
1954 | int len = sizeof (zc->zc_name) - (p - zc->zc_name); | |
1955 | ||
7d5cd71d MM |
1956 | while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0) { |
1957 | if (!dataset_name_hidden(zc->zc_name)) | |
1958 | (void) dmu_objset_prefetch(zc->zc_name, NULL); | |
1959 | } | |
d164b209 BB |
1960 | } |
1961 | ||
34dc7c2f BB |
1962 | do { |
1963 | error = dmu_dir_list_next(os, | |
1964 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
1965 | NULL, &zc->zc_cookie); | |
1966 | if (error == ENOENT) | |
1967 | error = ESRCH; | |
330d06f9 | 1968 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 1969 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 1970 | |
428870ff BB |
1971 | /* |
1972 | * If it's an internal dataset (ie. with a '$' in its name), | |
1973 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
1974 | */ | |
1975 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 1976 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
1977 | if (error == ENOENT) { |
1978 | /* We lost a race with destroy, get the next one. */ | |
1979 | zc->zc_name[orig_len] = '\0'; | |
1980 | goto top; | |
1981 | } | |
1982 | } | |
34dc7c2f BB |
1983 | return (error); |
1984 | } | |
1985 | ||
1986 | /* | |
1987 | * inputs: | |
1988 | * zc_name name of filesystem | |
1989 | * zc_cookie zap cursor | |
1990 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1991 | * | |
1992 | * outputs: | |
1993 | * zc_name name of next snapshot | |
1994 | * zc_objset_stats stats | |
1995 | * zc_nvlist_dst property nvlist | |
1996 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1997 | */ |
1998 | static int | |
1999 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2000 | { | |
2001 | objset_t *os; | |
2002 | int error; | |
2003 | ||
428870ff | 2004 | top: |
0cee2406 | 2005 | if (zc->zc_cookie == 0 && !zc->zc_simple) |
428870ff BB |
2006 | (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch, |
2007 | NULL, DS_FIND_SNAPSHOTS); | |
2008 | ||
2009 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
b128c09f BB |
2010 | if (error) |
2011 | return (error == ENOENT ? ESRCH : error); | |
34dc7c2f BB |
2012 | |
2013 | /* | |
2014 | * A dataset name of maximum length cannot have any snapshots, | |
2015 | * so exit immediately. | |
2016 | */ | |
2017 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2018 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2019 | return (ESRCH); |
2020 | } | |
2021 | ||
2022 | error = dmu_snapshot_list_next(os, | |
2023 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2024 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2025 | NULL); | |
2026 | ||
0cee2406 | 2027 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2028 | dsl_dataset_t *ds; |
2029 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2030 | ||
2031 | /* | |
2032 | * Since we probably don't have a hold on this snapshot, | |
2033 | * it's possible that the objsetid could have been destroyed | |
2034 | * and reused for a new objset. It's OK if this happens during | |
2035 | * a zfs send operation, since the new createtxg will be | |
2036 | * beyond the range we're interested in. | |
2037 | */ | |
2038 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
2039 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); | |
2040 | rw_exit(&dp->dp_config_rwlock); | |
2041 | if (error) { | |
2042 | if (error == ENOENT) { | |
2043 | /* Racing with destroy, get the next one. */ | |
2044 | *strchr(zc->zc_name, '@') = '\0'; | |
2045 | dmu_objset_rele(os, FTAG); | |
2046 | goto top; | |
2047 | } | |
2048 | } else { | |
2049 | objset_t *ossnap; | |
2050 | ||
2051 | error = dmu_objset_from_ds(ds, &ossnap); | |
2052 | if (error == 0) | |
2053 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2054 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2055 | } |
2056 | } else if (error == ENOENT) { | |
b128c09f | 2057 | error = ESRCH; |
428870ff | 2058 | } |
34dc7c2f | 2059 | |
572e2857 | 2060 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2061 | /* if we failed, undo the @ that we tacked on to zc_name */ |
b128c09f | 2062 | if (error) |
34dc7c2f | 2063 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2064 | return (error); |
2065 | } | |
2066 | ||
428870ff BB |
2067 | static int |
2068 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2069 | { |
428870ff BB |
2070 | const char *propname = nvpair_name(pair); |
2071 | uint64_t *valary; | |
2072 | unsigned int vallen; | |
2073 | const char *domain; | |
2074 | char *dash; | |
2075 | zfs_userquota_prop_t type; | |
2076 | uint64_t rid; | |
2077 | uint64_t quota; | |
3558fd73 | 2078 | zfs_sb_t *zsb; |
428870ff BB |
2079 | int err; |
2080 | ||
2081 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2082 | nvlist_t *attrs; | |
2083 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2084 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2085 | &pair) != 0) | |
2086 | return (EINVAL); | |
2087 | } | |
34dc7c2f BB |
2088 | |
2089 | /* | |
428870ff BB |
2090 | * A correctly constructed propname is encoded as |
2091 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2092 | */ |
428870ff BB |
2093 | if ((dash = strchr(propname, '-')) == NULL || |
2094 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2095 | vallen != 3) | |
2096 | return (EINVAL); | |
34dc7c2f | 2097 | |
428870ff BB |
2098 | domain = dash + 1; |
2099 | type = valary[0]; | |
2100 | rid = valary[1]; | |
2101 | quota = valary[2]; | |
34dc7c2f | 2102 | |
3558fd73 | 2103 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2104 | if (err == 0) { |
3558fd73 BB |
2105 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2106 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2107 | } |
9babb374 | 2108 | |
428870ff BB |
2109 | return (err); |
2110 | } | |
34dc7c2f | 2111 | |
428870ff BB |
2112 | /* |
2113 | * If the named property is one that has a special function to set its value, | |
2114 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2115 | * not one of the special properties handled by this function, return -1. | |
2116 | * | |
2117 | * XXX: It would be better for callers of the property interface if we handled | |
2118 | * these special cases in dsl_prop.c (in the dsl layer). | |
2119 | */ | |
2120 | static int | |
2121 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2122 | nvpair_t *pair) | |
2123 | { | |
2124 | const char *propname = nvpair_name(pair); | |
2125 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2126 | uint64_t intval; | |
2127 | int err; | |
9babb374 | 2128 | |
428870ff BB |
2129 | if (prop == ZPROP_INVAL) { |
2130 | if (zfs_prop_userquota(propname)) | |
2131 | return (zfs_prop_set_userquota(dsname, pair)); | |
2132 | return (-1); | |
2133 | } | |
34dc7c2f | 2134 | |
428870ff BB |
2135 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2136 | nvlist_t *attrs; | |
2137 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2138 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2139 | &pair) == 0); | |
2140 | } | |
b128c09f | 2141 | |
428870ff BB |
2142 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2143 | return (-1); | |
34dc7c2f | 2144 | |
428870ff | 2145 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2146 | |
428870ff BB |
2147 | switch (prop) { |
2148 | case ZFS_PROP_QUOTA: | |
2149 | err = dsl_dir_set_quota(dsname, source, intval); | |
2150 | break; | |
2151 | case ZFS_PROP_REFQUOTA: | |
2152 | err = dsl_dataset_set_quota(dsname, source, intval); | |
2153 | break; | |
2154 | case ZFS_PROP_RESERVATION: | |
2155 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2156 | break; | |
2157 | case ZFS_PROP_REFRESERVATION: | |
2158 | err = dsl_dataset_set_reservation(dsname, source, intval); | |
2159 | break; | |
2160 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2161 | err = zvol_set_volsize(dsname, intval); |
428870ff BB |
2162 | break; |
2163 | case ZFS_PROP_VERSION: | |
2164 | { | |
3558fd73 | 2165 | zfs_sb_t *zsb; |
428870ff | 2166 | |
3558fd73 | 2167 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2168 | break; |
b128c09f | 2169 | |
3558fd73 BB |
2170 | err = zfs_set_version(zsb, intval); |
2171 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2172 | |
428870ff BB |
2173 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2174 | zfs_cmd_t *zc; | |
34dc7c2f | 2175 | |
fa6e5ced BB |
2176 | zc = kmem_zalloc(sizeof (zfs_cmd_t), |
2177 | KM_SLEEP | KM_NODEBUG); | |
428870ff BB |
2178 | (void) strcpy(zc->zc_name, dsname); |
2179 | (void) zfs_ioc_userspace_upgrade(zc); | |
2180 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2181 | } |
428870ff BB |
2182 | break; |
2183 | } | |
34dc7c2f | 2184 | |
428870ff BB |
2185 | default: |
2186 | err = -1; | |
2187 | } | |
34dc7c2f | 2188 | |
428870ff BB |
2189 | return (err); |
2190 | } | |
34dc7c2f | 2191 | |
428870ff BB |
2192 | /* |
2193 | * This function is best effort. If it fails to set any of the given properties, | |
2194 | * it continues to set as many as it can and returns the first error | |
2195 | * encountered. If the caller provides a non-NULL errlist, it also gives the | |
2196 | * complete list of names of all the properties it failed to set along with the | |
2197 | * corresponding error numbers. The caller is responsible for freeing the | |
2198 | * returned errlist. | |
2199 | * | |
2200 | * If every property is set successfully, zero is returned and the list pointed | |
2201 | * at by errlist is NULL. | |
2202 | */ | |
2203 | int | |
2204 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
2205 | nvlist_t **errlist) | |
2206 | { | |
2207 | nvpair_t *pair; | |
2208 | nvpair_t *propval; | |
2209 | int rv = 0; | |
2210 | uint64_t intval; | |
2211 | char *strval; | |
2212 | nvlist_t *genericnvl; | |
2213 | nvlist_t *errors; | |
2214 | nvlist_t *retrynvl; | |
34dc7c2f | 2215 | |
428870ff BB |
2216 | VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
2217 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2218 | VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
34dc7c2f | 2219 | |
428870ff BB |
2220 | retry: |
2221 | pair = NULL; | |
2222 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2223 | const char *propname = nvpair_name(pair); | |
2224 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2225 | int err = 0; | |
2226 | ||
2227 | /* decode the property value */ | |
2228 | propval = pair; | |
2229 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2230 | nvlist_t *attrs; | |
2231 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2232 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2233 | &propval) != 0) | |
2234 | err = EINVAL; | |
9babb374 | 2235 | } |
34dc7c2f | 2236 | |
428870ff BB |
2237 | /* Validate value type */ |
2238 | if (err == 0 && prop == ZPROP_INVAL) { | |
2239 | if (zfs_prop_user(propname)) { | |
2240 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2241 | err = EINVAL; | |
2242 | } else if (zfs_prop_userquota(propname)) { | |
2243 | if (nvpair_type(propval) != | |
2244 | DATA_TYPE_UINT64_ARRAY) | |
2245 | err = EINVAL; | |
330d06f9 MA |
2246 | } else { |
2247 | err = EINVAL; | |
428870ff BB |
2248 | } |
2249 | } else if (err == 0) { | |
2250 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2251 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2252 | err = EINVAL; | |
2253 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { | |
34dc7c2f BB |
2254 | const char *unused; |
2255 | ||
428870ff BB |
2256 | VERIFY(nvpair_value_uint64(propval, |
2257 | &intval) == 0); | |
34dc7c2f BB |
2258 | |
2259 | switch (zfs_prop_get_type(prop)) { | |
2260 | case PROP_TYPE_NUMBER: | |
2261 | break; | |
2262 | case PROP_TYPE_STRING: | |
428870ff BB |
2263 | err = EINVAL; |
2264 | break; | |
34dc7c2f BB |
2265 | case PROP_TYPE_INDEX: |
2266 | if (zfs_prop_index_to_string(prop, | |
428870ff BB |
2267 | intval, &unused) != 0) |
2268 | err = EINVAL; | |
34dc7c2f BB |
2269 | break; |
2270 | default: | |
2271 | cmn_err(CE_PANIC, | |
2272 | "unknown property type"); | |
34dc7c2f | 2273 | } |
34dc7c2f | 2274 | } else { |
428870ff | 2275 | err = EINVAL; |
34dc7c2f | 2276 | } |
34dc7c2f | 2277 | } |
428870ff BB |
2278 | |
2279 | /* Validate permissions */ | |
2280 | if (err == 0) | |
2281 | err = zfs_check_settable(dsname, pair, CRED()); | |
2282 | ||
2283 | if (err == 0) { | |
2284 | err = zfs_prop_set_special(dsname, source, pair); | |
2285 | if (err == -1) { | |
2286 | /* | |
2287 | * For better performance we build up a list of | |
2288 | * properties to set in a single transaction. | |
2289 | */ | |
2290 | err = nvlist_add_nvpair(genericnvl, pair); | |
2291 | } else if (err != 0 && nvl != retrynvl) { | |
2292 | /* | |
2293 | * This may be a spurious error caused by | |
2294 | * receiving quota and reservation out of order. | |
2295 | * Try again in a second pass. | |
2296 | */ | |
2297 | err = nvlist_add_nvpair(retrynvl, pair); | |
2298 | } | |
2299 | } | |
2300 | ||
2301 | if (err != 0) | |
2302 | VERIFY(nvlist_add_int32(errors, propname, err) == 0); | |
34dc7c2f BB |
2303 | } |
2304 | ||
428870ff BB |
2305 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2306 | nvl = retrynvl; | |
2307 | goto retry; | |
2308 | } | |
2309 | ||
2310 | if (!nvlist_empty(genericnvl) && | |
2311 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2312 | /* | |
2313 | * If this fails, we still want to set as many properties as we | |
2314 | * can, so try setting them individually. | |
2315 | */ | |
2316 | pair = NULL; | |
2317 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2318 | const char *propname = nvpair_name(pair); | |
2319 | int err = 0; | |
2320 | ||
2321 | propval = pair; | |
2322 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2323 | nvlist_t *attrs; | |
2324 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2325 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2326 | &propval) == 0); | |
2327 | } | |
2328 | ||
2329 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2330 | VERIFY(nvpair_value_string(propval, | |
2331 | &strval) == 0); | |
2332 | err = dsl_prop_set(dsname, propname, source, 1, | |
2333 | strlen(strval) + 1, strval); | |
2334 | } else { | |
2335 | VERIFY(nvpair_value_uint64(propval, | |
2336 | &intval) == 0); | |
2337 | err = dsl_prop_set(dsname, propname, source, 8, | |
2338 | 1, &intval); | |
2339 | } | |
2340 | ||
2341 | if (err != 0) { | |
2342 | VERIFY(nvlist_add_int32(errors, propname, | |
2343 | err) == 0); | |
2344 | } | |
2345 | } | |
9babb374 | 2346 | } |
9babb374 | 2347 | nvlist_free(genericnvl); |
428870ff BB |
2348 | nvlist_free(retrynvl); |
2349 | ||
2350 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
2351 | nvlist_free(errors); | |
2352 | errors = NULL; | |
2353 | } else { | |
2354 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
2355 | } | |
2356 | ||
2357 | if (errlist == NULL) | |
2358 | nvlist_free(errors); | |
2359 | else | |
2360 | *errlist = errors; | |
2361 | ||
2362 | return (rv); | |
9babb374 BB |
2363 | } |
2364 | ||
2365 | /* | |
2366 | * Check that all the properties are valid user properties. | |
2367 | */ | |
2368 | static int | |
2369 | zfs_check_userprops(char *fsname, nvlist_t *nvl) | |
2370 | { | |
428870ff | 2371 | nvpair_t *pair = NULL; |
9babb374 BB |
2372 | int error = 0; |
2373 | ||
428870ff BB |
2374 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2375 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2376 | char *valstr; |
2377 | ||
2378 | if (!zfs_prop_user(propname) || | |
428870ff | 2379 | nvpair_type(pair) != DATA_TYPE_STRING) |
9babb374 BB |
2380 | return (EINVAL); |
2381 | ||
c65aa5b2 BB |
2382 | if ((error = zfs_secpolicy_write_perms(fsname, |
2383 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2384 | return (error); |
2385 | ||
2386 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2387 | return (ENAMETOOLONG); | |
2388 | ||
428870ff | 2389 | VERIFY(nvpair_value_string(pair, &valstr) == 0); |
9babb374 BB |
2390 | if (strlen(valstr) >= ZAP_MAXVALUELEN) |
2391 | return (E2BIG); | |
2392 | } | |
34dc7c2f BB |
2393 | return (0); |
2394 | } | |
2395 | ||
428870ff BB |
2396 | static void |
2397 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2398 | { | |
2399 | nvpair_t *pair; | |
2400 | ||
2401 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2402 | ||
2403 | pair = NULL; | |
2404 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2405 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2406 | continue; | |
2407 | ||
2408 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2409 | } | |
2410 | } | |
2411 | ||
2412 | static int | |
2413 | clear_received_props(objset_t *os, const char *fs, nvlist_t *props, | |
2414 | nvlist_t *skipped) | |
2415 | { | |
2416 | int err = 0; | |
2417 | nvlist_t *cleared_props = NULL; | |
2418 | props_skip(props, skipped, &cleared_props); | |
2419 | if (!nvlist_empty(cleared_props)) { | |
2420 | /* | |
2421 | * Acts on local properties until the dataset has received | |
2422 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2423 | */ | |
2424 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
2425 | (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0)); | |
2426 | err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL); | |
2427 | } | |
2428 | nvlist_free(cleared_props); | |
2429 | return (err); | |
2430 | } | |
2431 | ||
34dc7c2f BB |
2432 | /* |
2433 | * inputs: | |
2434 | * zc_name name of filesystem | |
9babb374 | 2435 | * zc_value name of property to set |
34dc7c2f | 2436 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2437 | * zc_cookie received properties flag |
34dc7c2f | 2438 | * |
428870ff BB |
2439 | * outputs: |
2440 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2441 | */ |
2442 | static int | |
2443 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2444 | { | |
2445 | nvlist_t *nvl; | |
428870ff BB |
2446 | boolean_t received = zc->zc_cookie; |
2447 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2448 | ZPROP_SRC_LOCAL); | |
2449 | nvlist_t *errors = NULL; | |
34dc7c2f BB |
2450 | int error; |
2451 | ||
2452 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2453 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2454 | return (error); |
2455 | ||
428870ff | 2456 | if (received) { |
b128c09f BB |
2457 | nvlist_t *origprops; |
2458 | objset_t *os; | |
2459 | ||
428870ff BB |
2460 | if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) { |
2461 | if (dsl_prop_get_received(os, &origprops) == 0) { | |
2462 | (void) clear_received_props(os, | |
2463 | zc->zc_name, origprops, nvl); | |
b128c09f BB |
2464 | nvlist_free(origprops); |
2465 | } | |
b128c09f | 2466 | |
428870ff BB |
2467 | dsl_prop_set_hasrecvd(os); |
2468 | dmu_objset_rele(os, FTAG); | |
2469 | } | |
b128c09f BB |
2470 | } |
2471 | ||
428870ff | 2472 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors); |
34dc7c2f | 2473 | |
b8864a23 | 2474 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2475 | (void) put_nvlist(zc, errors); |
2476 | } | |
2477 | ||
2478 | nvlist_free(errors); | |
34dc7c2f BB |
2479 | nvlist_free(nvl); |
2480 | return (error); | |
2481 | } | |
2482 | ||
2483 | /* | |
2484 | * inputs: | |
2485 | * zc_name name of filesystem | |
2486 | * zc_value name of property to inherit | |
428870ff | 2487 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2488 | * |
2489 | * outputs: none | |
2490 | */ | |
2491 | static int | |
2492 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2493 | { | |
428870ff BB |
2494 | const char *propname = zc->zc_value; |
2495 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2496 | boolean_t received = zc->zc_cookie; | |
2497 | zprop_source_t source = (received | |
2498 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2499 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2500 | ||
2501 | if (received) { | |
2502 | nvlist_t *dummy; | |
2503 | nvpair_t *pair; | |
2504 | zprop_type_t type; | |
2505 | int err; | |
2506 | ||
2507 | /* | |
2508 | * zfs_prop_set_special() expects properties in the form of an | |
2509 | * nvpair with type info. | |
2510 | */ | |
2511 | if (prop == ZPROP_INVAL) { | |
2512 | if (!zfs_prop_user(propname)) | |
2513 | return (EINVAL); | |
2514 | ||
2515 | type = PROP_TYPE_STRING; | |
2516 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2517 | prop == ZFS_PROP_VERSION) { | |
2518 | return (EINVAL); | |
2519 | } else { | |
2520 | type = zfs_prop_get_type(prop); | |
2521 | } | |
2522 | ||
2523 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2524 | ||
2525 | switch (type) { | |
2526 | case PROP_TYPE_STRING: | |
2527 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2528 | break; | |
2529 | case PROP_TYPE_NUMBER: | |
2530 | case PROP_TYPE_INDEX: | |
2531 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2532 | break; | |
2533 | default: | |
2534 | nvlist_free(dummy); | |
2535 | return (EINVAL); | |
2536 | } | |
2537 | ||
2538 | pair = nvlist_next_nvpair(dummy, NULL); | |
2539 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2540 | nvlist_free(dummy); | |
2541 | if (err != -1) | |
2542 | return (err); /* special property already handled */ | |
2543 | } else { | |
2544 | /* | |
2545 | * Only check this in the non-received case. We want to allow | |
2546 | * 'inherit -S' to revert non-inheritable properties like quota | |
2547 | * and reservation to the received or default values even though | |
2548 | * they are not considered inheritable. | |
2549 | */ | |
2550 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2551 | return (EINVAL); | |
2552 | } | |
2553 | ||
34dc7c2f | 2554 | /* the property name has been validated by zfs_secpolicy_inherit() */ |
428870ff | 2555 | return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL)); |
34dc7c2f BB |
2556 | } |
2557 | ||
2558 | static int | |
2559 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2560 | { | |
2561 | nvlist_t *props; | |
2562 | spa_t *spa; | |
2563 | int error; | |
428870ff | 2564 | nvpair_t *pair; |
34dc7c2f | 2565 | |
c65aa5b2 BB |
2566 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2567 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2568 | return (error); |
2569 | ||
d164b209 BB |
2570 | /* |
2571 | * If the only property is the configfile, then just do a spa_lookup() | |
2572 | * to handle the faulted case. | |
2573 | */ | |
428870ff BB |
2574 | pair = nvlist_next_nvpair(props, NULL); |
2575 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2576 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2577 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2578 | mutex_enter(&spa_namespace_lock); |
2579 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2580 | spa_configfile_set(spa, props, B_FALSE); | |
2581 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2582 | } | |
2583 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2584 | if (spa != NULL) { |
2585 | nvlist_free(props); | |
d164b209 | 2586 | return (0); |
428870ff | 2587 | } |
d164b209 BB |
2588 | } |
2589 | ||
34dc7c2f BB |
2590 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2591 | nvlist_free(props); | |
2592 | return (error); | |
2593 | } | |
2594 | ||
2595 | error = spa_prop_set(spa, props); | |
2596 | ||
2597 | nvlist_free(props); | |
2598 | spa_close(spa, FTAG); | |
2599 | ||
2600 | return (error); | |
2601 | } | |
2602 | ||
2603 | static int | |
2604 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2605 | { | |
2606 | spa_t *spa; | |
2607 | int error; | |
2608 | nvlist_t *nvp = NULL; | |
2609 | ||
d164b209 BB |
2610 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2611 | /* | |
2612 | * If the pool is faulted, there may be properties we can still | |
2613 | * get (such as altroot and cachefile), so attempt to get them | |
2614 | * anyway. | |
2615 | */ | |
2616 | mutex_enter(&spa_namespace_lock); | |
2617 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2618 | error = spa_prop_get(spa, &nvp); | |
2619 | mutex_exit(&spa_namespace_lock); | |
2620 | } else { | |
2621 | error = spa_prop_get(spa, &nvp); | |
2622 | spa_close(spa, FTAG); | |
2623 | } | |
34dc7c2f | 2624 | |
b8864a23 | 2625 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2626 | error = put_nvlist(zc, nvp); |
2627 | else | |
2628 | error = EFAULT; | |
2629 | ||
d164b209 | 2630 | nvlist_free(nvp); |
34dc7c2f BB |
2631 | return (error); |
2632 | } | |
2633 | ||
60101509 BB |
2634 | /* |
2635 | * inputs: | |
2636 | * zc_name name of volume | |
2637 | * | |
2638 | * outputs: none | |
2639 | */ | |
2640 | static int | |
2641 | zfs_ioc_create_minor(zfs_cmd_t *zc) | |
2642 | { | |
2643 | return (zvol_create_minor(zc->zc_name)); | |
2644 | } | |
2645 | ||
2646 | /* | |
2647 | * inputs: | |
2648 | * zc_name name of volume | |
2649 | * | |
2650 | * outputs: none | |
2651 | */ | |
2652 | static int | |
2653 | zfs_ioc_remove_minor(zfs_cmd_t *zc) | |
2654 | { | |
2655 | return (zvol_remove_minor(zc->zc_name)); | |
2656 | } | |
2657 | ||
34dc7c2f BB |
2658 | /* |
2659 | * inputs: | |
2660 | * zc_name name of filesystem | |
2661 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2662 | * zc_perm_action allow/unallow flag | |
2663 | * | |
2664 | * outputs: none | |
2665 | */ | |
2666 | static int | |
2667 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2668 | { | |
2669 | int error; | |
2670 | nvlist_t *fsaclnv = NULL; | |
2671 | ||
2672 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2673 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2674 | return (error); |
2675 | ||
2676 | /* | |
2677 | * Verify nvlist is constructed correctly | |
2678 | */ | |
2679 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2680 | nvlist_free(fsaclnv); | |
2681 | return (EINVAL); | |
2682 | } | |
2683 | ||
2684 | /* | |
2685 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2686 | * that user is allowed to hand out each permission in | |
2687 | * the nvlist(s) | |
2688 | */ | |
2689 | ||
2690 | error = secpolicy_zfs(CRED()); | |
2691 | if (error) { | |
2692 | if (zc->zc_perm_action == B_FALSE) { | |
2693 | error = dsl_deleg_can_allow(zc->zc_name, | |
2694 | fsaclnv, CRED()); | |
2695 | } else { | |
2696 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2697 | fsaclnv, CRED()); | |
2698 | } | |
2699 | } | |
2700 | ||
2701 | if (error == 0) | |
2702 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2703 | ||
2704 | nvlist_free(fsaclnv); | |
2705 | return (error); | |
2706 | } | |
2707 | ||
2708 | /* | |
2709 | * inputs: | |
2710 | * zc_name name of filesystem | |
2711 | * | |
2712 | * outputs: | |
2713 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2714 | */ | |
2715 | static int | |
2716 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2717 | { | |
2718 | nvlist_t *nvp; | |
2719 | int error; | |
2720 | ||
2721 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2722 | error = put_nvlist(zc, nvp); | |
2723 | nvlist_free(nvp); | |
2724 | } | |
2725 | ||
2726 | return (error); | |
2727 | } | |
2728 | ||
34dc7c2f BB |
2729 | /* ARGSUSED */ |
2730 | static void | |
2731 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2732 | { | |
2733 | zfs_creat_t *zct = arg; | |
2734 | ||
2735 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2736 | } | |
2737 | ||
2738 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2739 | ||
2740 | /* | |
2741 | * inputs: | |
b128c09f BB |
2742 | * createprops list of properties requested by creator |
2743 | * default_zplver zpl version to use if unspecified in createprops | |
2744 | * fuids_ok fuids allowed in this version of the spa? | |
2745 | * os parent objset pointer (NULL if root fs) | |
34dc7c2f BB |
2746 | * |
2747 | * outputs: | |
2748 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2749 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2750 | * |
2751 | * Determine the settings for utf8only, normalization and | |
2752 | * casesensitivity. Specific values may have been requested by the | |
2753 | * creator and/or we can inherit values from the parent dataset. If | |
2754 | * the file system is of too early a vintage, a creator can not | |
2755 | * request settings for these properties, even if the requested | |
2756 | * setting is the default value. We don't actually want to create dsl | |
2757 | * properties for these, so remove them from the source nvlist after | |
2758 | * processing. | |
2759 | */ | |
2760 | static int | |
9babb374 | 2761 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2762 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2763 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2764 | { |
34dc7c2f BB |
2765 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2766 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2767 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2768 | int error; |
34dc7c2f BB |
2769 | |
2770 | ASSERT(zplprops != NULL); | |
2771 | ||
34dc7c2f BB |
2772 | /* |
2773 | * Pull out creator prop choices, if any. | |
2774 | */ | |
2775 | if (createprops) { | |
b128c09f BB |
2776 | (void) nvlist_lookup_uint64(createprops, |
2777 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2778 | (void) nvlist_lookup_uint64(createprops, |
2779 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2780 | (void) nvlist_remove_all(createprops, | |
2781 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2782 | (void) nvlist_lookup_uint64(createprops, | |
2783 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2784 | (void) nvlist_remove_all(createprops, | |
2785 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2786 | (void) nvlist_lookup_uint64(createprops, | |
2787 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2788 | (void) nvlist_remove_all(createprops, | |
2789 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2790 | } | |
2791 | ||
2792 | /* | |
b128c09f BB |
2793 | * If the zpl version requested is whacky or the file system |
2794 | * or pool is version is too "young" to support normalization | |
2795 | * and the creator tried to set a value for one of the props, | |
2796 | * error out. | |
34dc7c2f | 2797 | */ |
b128c09f BB |
2798 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
2799 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 2800 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 2801 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 2802 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 2803 | sense != ZFS_PROP_UNDEFINED))) |
34dc7c2f BB |
2804 | return (ENOTSUP); |
2805 | ||
2806 | /* | |
2807 | * Put the version in the zplprops | |
2808 | */ | |
2809 | VERIFY(nvlist_add_uint64(zplprops, | |
2810 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
2811 | ||
b129c659 MM |
2812 | if (norm == ZFS_PROP_UNDEFINED && |
2813 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
2814 | return (error); | |
34dc7c2f BB |
2815 | VERIFY(nvlist_add_uint64(zplprops, |
2816 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
2817 | ||
2818 | /* | |
2819 | * If we're normalizing, names must always be valid UTF-8 strings. | |
2820 | */ | |
2821 | if (norm) | |
2822 | u8 = 1; | |
b129c659 MM |
2823 | if (u8 == ZFS_PROP_UNDEFINED && |
2824 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
2825 | return (error); | |
34dc7c2f BB |
2826 | VERIFY(nvlist_add_uint64(zplprops, |
2827 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
2828 | ||
b129c659 MM |
2829 | if (sense == ZFS_PROP_UNDEFINED && |
2830 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
2831 | return (error); | |
34dc7c2f BB |
2832 | VERIFY(nvlist_add_uint64(zplprops, |
2833 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
2834 | ||
2835 | if (is_ci) | |
2836 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
2837 | ||
34dc7c2f BB |
2838 | return (0); |
2839 | } | |
2840 | ||
b128c09f BB |
2841 | static int |
2842 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
2843 | nvlist_t *zplprops, boolean_t *is_ci) | |
2844 | { | |
428870ff | 2845 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
2846 | uint64_t zplver = ZPL_VERSION; |
2847 | objset_t *os = NULL; | |
2848 | char parentname[MAXNAMELEN]; | |
2849 | char *cp; | |
428870ff BB |
2850 | spa_t *spa; |
2851 | uint64_t spa_vers; | |
b128c09f BB |
2852 | int error; |
2853 | ||
2854 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
2855 | cp = strrchr(parentname, '/'); | |
2856 | ASSERT(cp != NULL); | |
2857 | cp[0] = '\0'; | |
2858 | ||
428870ff BB |
2859 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
2860 | return (error); | |
2861 | ||
2862 | spa_vers = spa_version(spa); | |
2863 | spa_close(spa, FTAG); | |
2864 | ||
2865 | zplver = zfs_zpl_version_map(spa_vers); | |
2866 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2867 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
2868 | |
2869 | /* | |
2870 | * Open parent object set so we can inherit zplprop values. | |
2871 | */ | |
428870ff | 2872 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
2873 | return (error); |
2874 | ||
428870ff | 2875 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 2876 | zplprops, is_ci); |
428870ff | 2877 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
2878 | return (error); |
2879 | } | |
2880 | ||
2881 | static int | |
2882 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
2883 | nvlist_t *zplprops, boolean_t *is_ci) | |
2884 | { | |
428870ff BB |
2885 | boolean_t fuids_ok; |
2886 | boolean_t sa_ok; | |
b128c09f BB |
2887 | uint64_t zplver = ZPL_VERSION; |
2888 | int error; | |
2889 | ||
428870ff BB |
2890 | zplver = zfs_zpl_version_map(spa_vers); |
2891 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2892 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 2893 | |
428870ff BB |
2894 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
2895 | createprops, zplprops, is_ci); | |
b128c09f BB |
2896 | return (error); |
2897 | } | |
2898 | ||
34dc7c2f BB |
2899 | /* |
2900 | * inputs: | |
2901 | * zc_objset_type type of objset to create (fs vs zvol) | |
2902 | * zc_name name of new objset | |
2903 | * zc_value name of snapshot to clone from (may be empty) | |
2904 | * zc_nvlist_src{_size} nvlist of properties to apply | |
2905 | * | |
2906 | * outputs: none | |
2907 | */ | |
2908 | static int | |
2909 | zfs_ioc_create(zfs_cmd_t *zc) | |
2910 | { | |
2911 | objset_t *clone; | |
2912 | int error = 0; | |
2913 | zfs_creat_t zct; | |
2914 | nvlist_t *nvprops = NULL; | |
2915 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
2916 | dmu_objset_type_t type = zc->zc_objset_type; | |
2917 | ||
2918 | switch (type) { | |
2919 | ||
2920 | case DMU_OST_ZFS: | |
2921 | cbfunc = zfs_create_cb; | |
2922 | break; | |
2923 | ||
2924 | case DMU_OST_ZVOL: | |
2925 | cbfunc = zvol_create_cb; | |
2926 | break; | |
2927 | ||
2928 | default: | |
2929 | cbfunc = NULL; | |
2930 | break; | |
2931 | } | |
2932 | if (strchr(zc->zc_name, '@') || | |
2933 | strchr(zc->zc_name, '%')) | |
2934 | return (EINVAL); | |
2935 | ||
b8864a23 | 2936 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 2937 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 2938 | zc->zc_iflags, &nvprops)) != 0) |
34dc7c2f BB |
2939 | return (error); |
2940 | ||
2941 | zct.zct_zplprops = NULL; | |
2942 | zct.zct_props = nvprops; | |
2943 | ||
2944 | if (zc->zc_value[0] != '\0') { | |
2945 | /* | |
2946 | * We're creating a clone of an existing snapshot. | |
2947 | */ | |
2948 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
2949 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { | |
2950 | nvlist_free(nvprops); | |
2951 | return (EINVAL); | |
2952 | } | |
2953 | ||
428870ff | 2954 | error = dmu_objset_hold(zc->zc_value, FTAG, &clone); |
34dc7c2f BB |
2955 | if (error) { |
2956 | nvlist_free(nvprops); | |
2957 | return (error); | |
2958 | } | |
2959 | ||
428870ff BB |
2960 | error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0); |
2961 | dmu_objset_rele(clone, FTAG); | |
34dc7c2f | 2962 | if (error) { |
34dc7c2f BB |
2963 | nvlist_free(nvprops); |
2964 | return (error); | |
2965 | } | |
34dc7c2f BB |
2966 | } else { |
2967 | boolean_t is_insensitive = B_FALSE; | |
2968 | ||
2969 | if (cbfunc == NULL) { | |
2970 | nvlist_free(nvprops); | |
2971 | return (EINVAL); | |
2972 | } | |
2973 | ||
2974 | if (type == DMU_OST_ZVOL) { | |
2975 | uint64_t volsize, volblocksize; | |
2976 | ||
2977 | if (nvprops == NULL || | |
2978 | nvlist_lookup_uint64(nvprops, | |
2979 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
2980 | &volsize) != 0) { | |
2981 | nvlist_free(nvprops); | |
2982 | return (EINVAL); | |
2983 | } | |
2984 | ||
2985 | if ((error = nvlist_lookup_uint64(nvprops, | |
2986 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
2987 | &volblocksize)) != 0 && error != ENOENT) { | |
2988 | nvlist_free(nvprops); | |
2989 | return (EINVAL); | |
2990 | } | |
2991 | ||
2992 | if (error != 0) | |
2993 | volblocksize = zfs_prop_default_numeric( | |
2994 | ZFS_PROP_VOLBLOCKSIZE); | |
2995 | ||
2996 | if ((error = zvol_check_volblocksize( | |
2997 | volblocksize)) != 0 || | |
2998 | (error = zvol_check_volsize(volsize, | |
2999 | volblocksize)) != 0) { | |
3000 | nvlist_free(nvprops); | |
3001 | return (error); | |
3002 | } | |
3003 | } else if (type == DMU_OST_ZFS) { | |
34dc7c2f BB |
3004 | int error; |
3005 | ||
34dc7c2f BB |
3006 | /* |
3007 | * We have to have normalization and | |
3008 | * case-folding flags correct when we do the | |
3009 | * file system creation, so go figure them out | |
3010 | * now. | |
3011 | */ | |
3012 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3013 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3014 | error = zfs_fill_zplprops(zc->zc_name, nvprops, | |
b128c09f | 3015 | zct.zct_zplprops, &is_insensitive); |
34dc7c2f BB |
3016 | if (error != 0) { |
3017 | nvlist_free(nvprops); | |
3018 | nvlist_free(zct.zct_zplprops); | |
3019 | return (error); | |
3020 | } | |
3021 | } | |
428870ff | 3022 | error = dmu_objset_create(zc->zc_name, type, |
34dc7c2f BB |
3023 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); |
3024 | nvlist_free(zct.zct_zplprops); | |
3025 | } | |
3026 | ||
3027 | /* | |
3028 | * It would be nice to do this atomically. | |
3029 | */ | |
3030 | if (error == 0) { | |
428870ff BB |
3031 | error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL, |
3032 | nvprops, NULL); | |
3033 | if (error != 0) | |
45d1cae3 | 3034 | (void) dmu_objset_destroy(zc->zc_name, B_FALSE); |
34dc7c2f BB |
3035 | } |
3036 | nvlist_free(nvprops); | |
3037 | return (error); | |
3038 | } | |
3039 | ||
3040 | /* | |
3041 | * inputs: | |
3042 | * zc_name name of filesystem | |
3043 | * zc_value short name of snapshot | |
3044 | * zc_cookie recursive flag | |
9babb374 | 3045 | * zc_nvlist_src[_size] property list |
34dc7c2f | 3046 | * |
428870ff BB |
3047 | * outputs: |
3048 | * zc_value short snapname (i.e. part after the '@') | |
34dc7c2f BB |
3049 | */ |
3050 | static int | |
3051 | zfs_ioc_snapshot(zfs_cmd_t *zc) | |
3052 | { | |
b128c09f BB |
3053 | nvlist_t *nvprops = NULL; |
3054 | int error; | |
3055 | boolean_t recursive = zc->zc_cookie; | |
3056 | ||
34dc7c2f BB |
3057 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) |
3058 | return (EINVAL); | |
b128c09f | 3059 | |
b8864a23 | 3060 | if (zc->zc_nvlist_src != 0 && |
b128c09f | 3061 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3062 | zc->zc_iflags, &nvprops)) != 0) |
b128c09f BB |
3063 | return (error); |
3064 | ||
9babb374 BB |
3065 | error = zfs_check_userprops(zc->zc_name, nvprops); |
3066 | if (error) | |
3067 | goto out; | |
b128c09f | 3068 | |
428870ff | 3069 | if (!nvlist_empty(nvprops) && |
9babb374 BB |
3070 | zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) { |
3071 | error = ENOTSUP; | |
3072 | goto out; | |
b128c09f | 3073 | } |
9babb374 | 3074 | |
572e2857 BB |
3075 | error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, NULL, |
3076 | nvprops, recursive, B_FALSE, -1); | |
9babb374 BB |
3077 | |
3078 | out: | |
b128c09f BB |
3079 | nvlist_free(nvprops); |
3080 | return (error); | |
34dc7c2f BB |
3081 | } |
3082 | ||
ebe7e575 BB |
3083 | /* |
3084 | * inputs: | |
3085 | * name dataset name, or when 'arg == NULL' the full snapshot name | |
3086 | * arg short snapshot name (i.e. part after the '@') | |
3087 | */ | |
34dc7c2f | 3088 | int |
428870ff | 3089 | zfs_unmount_snap(const char *name, void *arg) |
34dc7c2f | 3090 | { |
ebe7e575 BB |
3091 | zfs_sb_t *zsb = NULL; |
3092 | char *dsname; | |
3093 | char *snapname; | |
3094 | char *fullname; | |
3095 | char *ptr; | |
3096 | int error; | |
34dc7c2f | 3097 | |
b128c09f | 3098 | if (arg) { |
ebe7e575 BB |
3099 | dsname = strdup(name); |
3100 | snapname = strdup(arg); | |
3101 | } else { | |
3102 | ptr = strchr(name, '@'); | |
3103 | if (ptr) { | |
3104 | dsname = strdup(name); | |
3105 | dsname[ptr - name] = '\0'; | |
3106 | snapname = strdup(ptr + 1); | |
3107 | } else { | |
3108 | return (0); | |
3109 | } | |
34dc7c2f BB |
3110 | } |
3111 | ||
ebe7e575 | 3112 | fullname = kmem_asprintf("%s@%s", dsname, snapname); |
34dc7c2f | 3113 | |
ebe7e575 BB |
3114 | error = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
3115 | if (error == 0) { | |
3116 | error = zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE); | |
3117 | zfs_sb_rele(zsb, FTAG); | |
3118 | ||
3119 | /* Allow ENOENT for consistency with upstream */ | |
3120 | if (error == ENOENT) | |
3121 | error = 0; | |
34dc7c2f | 3122 | } |
ebe7e575 BB |
3123 | |
3124 | strfree(dsname); | |
3125 | strfree(snapname); | |
3126 | strfree(fullname); | |
3127 | ||
3128 | return (error); | |
34dc7c2f BB |
3129 | } |
3130 | ||
3131 | /* | |
3132 | * inputs: | |
330d06f9 MA |
3133 | * zc_name name of filesystem, snaps must be under it |
3134 | * zc_nvlist_src[_size] full names of snapshots to destroy | |
45d1cae3 | 3135 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f | 3136 | * |
330d06f9 MA |
3137 | * outputs: |
3138 | * zc_name on failure, name of failed snapshot | |
34dc7c2f BB |
3139 | */ |
3140 | static int | |
330d06f9 | 3141 | zfs_ioc_destroy_snaps_nvl(zfs_cmd_t *zc) |
34dc7c2f | 3142 | { |
330d06f9 MA |
3143 | int err, len; |
3144 | nvlist_t *nvl; | |
3145 | nvpair_t *pair; | |
34dc7c2f | 3146 | |
330d06f9 MA |
3147 | if ((err = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
3148 | zc->zc_iflags, &nvl)) != 0) | |
34dc7c2f | 3149 | return (err); |
330d06f9 MA |
3150 | |
3151 | len = strlen(zc->zc_name); | |
3152 | for (pair = nvlist_next_nvpair(nvl, NULL); pair != NULL; | |
3153 | pair = nvlist_next_nvpair(nvl, pair)) { | |
3154 | const char *name = nvpair_name(pair); | |
3155 | /* | |
3156 | * The snap name must be underneath the zc_name. This ensures | |
3157 | * that our permission checks were legitimate. | |
3158 | */ | |
3159 | if (strncmp(zc->zc_name, name, len) != 0 || | |
3160 | (name[len] != '@' && name[len] != '/')) { | |
3161 | nvlist_free(nvl); | |
3162 | return (EINVAL); | |
3163 | } | |
3164 | ||
3165 | (void) zfs_unmount_snap(name, NULL); | |
3166 | } | |
3167 | ||
3168 | err = dmu_snapshots_destroy_nvl(nvl, zc->zc_defer_destroy, | |
3169 | zc->zc_name); | |
3170 | nvlist_free(nvl); | |
3171 | return (err); | |
34dc7c2f BB |
3172 | } |
3173 | ||
3174 | /* | |
3175 | * inputs: | |
3176 | * zc_name name of dataset to destroy | |
3177 | * zc_objset_type type of objset | |
45d1cae3 | 3178 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3179 | * |
3180 | * outputs: none | |
3181 | */ | |
3182 | static int | |
3183 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3184 | { | |
428870ff | 3185 | int err; |
34dc7c2f | 3186 | if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { |
428870ff | 3187 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
3188 | if (err) |
3189 | return (err); | |
3190 | } | |
3191 | ||
428870ff BB |
3192 | err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy); |
3193 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) | |
3194 | (void) zvol_remove_minor(zc->zc_name); | |
3195 | return (err); | |
34dc7c2f BB |
3196 | } |
3197 | ||
3198 | /* | |
3199 | * inputs: | |
3200 | * zc_name name of dataset to rollback (to most recent snapshot) | |
3201 | * | |
3202 | * outputs: none | |
3203 | */ | |
3204 | static int | |
3205 | zfs_ioc_rollback(zfs_cmd_t *zc) | |
3206 | { | |
428870ff | 3207 | dsl_dataset_t *ds, *clone; |
34dc7c2f | 3208 | int error; |
3558fd73 | 3209 | zfs_sb_t *zsb; |
428870ff BB |
3210 | char *clone_name; |
3211 | ||
3212 | error = dsl_dataset_hold(zc->zc_name, FTAG, &ds); | |
3213 | if (error) | |
3214 | return (error); | |
3215 | ||
3216 | /* must not be a snapshot */ | |
3217 | if (dsl_dataset_is_snapshot(ds)) { | |
3218 | dsl_dataset_rele(ds, FTAG); | |
3219 | return (EINVAL); | |
3220 | } | |
3221 | ||
3222 | /* must have a most recent snapshot */ | |
3223 | if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) { | |
3224 | dsl_dataset_rele(ds, FTAG); | |
3225 | return (EINVAL); | |
3226 | } | |
34dc7c2f BB |
3227 | |
3228 | /* | |
428870ff | 3229 | * Create clone of most recent snapshot. |
34dc7c2f | 3230 | */ |
428870ff BB |
3231 | clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name); |
3232 | error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT); | |
34dc7c2f | 3233 | if (error) |
428870ff | 3234 | goto out; |
34dc7c2f | 3235 | |
428870ff BB |
3236 | error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone); |
3237 | if (error) | |
3238 | goto out; | |
34dc7c2f | 3239 | |
428870ff BB |
3240 | /* |
3241 | * Do clone swap. | |
3242 | */ | |
3558fd73 BB |
3243 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
3244 | error = zfs_suspend_fs(zsb); | |
34dc7c2f BB |
3245 | if (error == 0) { |
3246 | int resume_err; | |
3247 | ||
428870ff BB |
3248 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3249 | error = dsl_dataset_clone_swap(clone, ds, | |
3250 | B_TRUE); | |
3251 | dsl_dataset_disown(ds, FTAG); | |
3252 | ds = NULL; | |
3253 | } else { | |
3254 | error = EBUSY; | |
3255 | } | |
3558fd73 | 3256 | resume_err = zfs_resume_fs(zsb, zc->zc_name); |
34dc7c2f | 3257 | error = error ? error : resume_err; |
34dc7c2f | 3258 | } |
2cf7f52b | 3259 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3260 | } else { |
428870ff BB |
3261 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3262 | error = dsl_dataset_clone_swap(clone, ds, B_TRUE); | |
3263 | dsl_dataset_disown(ds, FTAG); | |
3264 | ds = NULL; | |
3265 | } else { | |
3266 | error = EBUSY; | |
3267 | } | |
34dc7c2f | 3268 | } |
34dc7c2f | 3269 | |
428870ff BB |
3270 | /* |
3271 | * Destroy clone (which also closes it). | |
3272 | */ | |
3273 | (void) dsl_dataset_destroy(clone, FTAG, B_FALSE); | |
3274 | ||
3275 | out: | |
3276 | strfree(clone_name); | |
3277 | if (ds) | |
3278 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3279 | return (error); |
3280 | } | |
3281 | ||
3282 | /* | |
3283 | * inputs: | |
3284 | * zc_name old name of dataset | |
3285 | * zc_value new name of dataset | |
3286 | * zc_cookie recursive flag (only valid for snapshots) | |
3287 | * | |
3288 | * outputs: none | |
3289 | */ | |
3290 | static int | |
3291 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3292 | { | |
3293 | boolean_t recursive = zc->zc_cookie & 1; | |
95c73795 | 3294 | int err; |
34dc7c2f BB |
3295 | |
3296 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3297 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3298 | strchr(zc->zc_value, '%')) | |
3299 | return (EINVAL); | |
3300 | ||
3301 | /* | |
3302 | * Unmount snapshot unless we're doing a recursive rename, | |
3303 | * in which case the dataset code figures out which snapshots | |
3304 | * to unmount. | |
3305 | */ | |
3306 | if (!recursive && strchr(zc->zc_name, '@') != NULL && | |
3307 | zc->zc_objset_type == DMU_OST_ZFS) { | |
95c73795 | 3308 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
3309 | if (err) |
3310 | return (err); | |
3311 | } | |
95c73795 BB |
3312 | |
3313 | err = dmu_objset_rename(zc->zc_name, zc->zc_value, recursive); | |
3314 | if ((err == 0) && (zc->zc_objset_type == DMU_OST_ZVOL)) { | |
428870ff | 3315 | (void) zvol_remove_minor(zc->zc_name); |
95c73795 BB |
3316 | (void) zvol_create_minor(zc->zc_value); |
3317 | } | |
3318 | ||
3319 | return (err); | |
34dc7c2f BB |
3320 | } |
3321 | ||
428870ff BB |
3322 | static int |
3323 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3324 | { | |
3325 | const char *propname = nvpair_name(pair); | |
3326 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3327 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3328 | uint64_t intval; | |
3329 | int err; | |
3330 | ||
3331 | if (prop == ZPROP_INVAL) { | |
3332 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3333 | if ((err = zfs_secpolicy_write_perms(dsname, |
3334 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3335 | return (err); |
3336 | return (0); | |
3337 | } | |
3338 | ||
3339 | if (!issnap && zfs_prop_userquota(propname)) { | |
3340 | const char *perm = NULL; | |
3341 | const char *uq_prefix = | |
3342 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3343 | const char *gq_prefix = | |
3344 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3345 | ||
3346 | if (strncmp(propname, uq_prefix, | |
3347 | strlen(uq_prefix)) == 0) { | |
3348 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3349 | } else if (strncmp(propname, gq_prefix, | |
3350 | strlen(gq_prefix)) == 0) { | |
3351 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3352 | } else { | |
3353 | /* USERUSED and GROUPUSED are read-only */ | |
3354 | return (EINVAL); | |
3355 | } | |
3356 | ||
c65aa5b2 | 3357 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3358 | return (err); |
3359 | return (0); | |
3360 | } | |
3361 | ||
3362 | return (EINVAL); | |
3363 | } | |
3364 | ||
3365 | if (issnap) | |
3366 | return (EINVAL); | |
3367 | ||
3368 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3369 | /* | |
3370 | * dsl_prop_get_all_impl() returns properties in this | |
3371 | * format. | |
3372 | */ | |
3373 | nvlist_t *attrs; | |
3374 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3375 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3376 | &pair) == 0); | |
3377 | } | |
3378 | ||
3379 | /* | |
3380 | * Check that this value is valid for this pool version | |
3381 | */ | |
3382 | switch (prop) { | |
3383 | case ZFS_PROP_COMPRESSION: | |
3384 | /* | |
3385 | * If the user specified gzip compression, make sure | |
3386 | * the SPA supports it. We ignore any errors here since | |
3387 | * we'll catch them later. | |
3388 | */ | |
3389 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3390 | nvpair_value_uint64(pair, &intval) == 0) { | |
3391 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3392 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3393 | zfs_earlier_version(dsname, | |
3394 | SPA_VERSION_GZIP_COMPRESSION)) { | |
3395 | return (ENOTSUP); | |
3396 | } | |
3397 | ||
3398 | if (intval == ZIO_COMPRESS_ZLE && | |
3399 | zfs_earlier_version(dsname, | |
3400 | SPA_VERSION_ZLE_COMPRESSION)) | |
3401 | return (ENOTSUP); | |
3402 | ||
3403 | /* | |
3404 | * If this is a bootable dataset then | |
3405 | * verify that the compression algorithm | |
3406 | * is supported for booting. We must return | |
3407 | * something other than ENOTSUP since it | |
3408 | * implies a downrev pool version. | |
3409 | */ | |
3410 | if (zfs_is_bootfs(dsname) && | |
3411 | !BOOTFS_COMPRESS_VALID(intval)) { | |
3412 | return (ERANGE); | |
3413 | } | |
3414 | } | |
3415 | break; | |
3416 | ||
3417 | case ZFS_PROP_COPIES: | |
3418 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
3419 | return (ENOTSUP); | |
3420 | break; | |
3421 | ||
3422 | case ZFS_PROP_DEDUP: | |
3423 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
3424 | return (ENOTSUP); | |
3425 | break; | |
3426 | ||
3427 | case ZFS_PROP_SHARESMB: | |
3428 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
3429 | return (ENOTSUP); | |
3430 | break; | |
3431 | ||
3432 | case ZFS_PROP_ACLINHERIT: | |
3433 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3434 | nvpair_value_uint64(pair, &intval) == 0) { | |
3435 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3436 | zfs_earlier_version(dsname, | |
3437 | SPA_VERSION_PASSTHROUGH_X)) | |
3438 | return (ENOTSUP); | |
3439 | } | |
3440 | break; | |
e75c13c3 BB |
3441 | default: |
3442 | break; | |
428870ff BB |
3443 | } |
3444 | ||
3445 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3446 | } | |
3447 | ||
3448 | /* | |
3449 | * Removes properties from the given props list that fail permission checks | |
3450 | * needed to clear them and to restore them in case of a receive error. For each | |
3451 | * property, make sure we have both set and inherit permissions. | |
3452 | * | |
3453 | * Returns the first error encountered if any permission checks fail. If the | |
3454 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3455 | * of all the properties that failed a permission check along with the | |
3456 | * corresponding error numbers. The caller is responsible for freeing the | |
3457 | * returned errlist. | |
3458 | * | |
3459 | * If every property checks out successfully, zero is returned and the list | |
3460 | * pointed at by errlist is NULL. | |
3461 | */ | |
3462 | static int | |
3463 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3464 | { |
3465 | zfs_cmd_t *zc; | |
428870ff BB |
3466 | nvpair_t *pair, *next_pair; |
3467 | nvlist_t *errors; | |
3468 | int err, rv = 0; | |
b128c09f BB |
3469 | |
3470 | if (props == NULL) | |
428870ff BB |
3471 | return (0); |
3472 | ||
3473 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3474 | ||
d247f2a3 | 3475 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
b128c09f | 3476 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3477 | pair = nvlist_next_nvpair(props, NULL); |
3478 | while (pair != NULL) { | |
3479 | next_pair = nvlist_next_nvpair(props, pair); | |
3480 | ||
3481 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3482 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
3483 | (err = zfs_secpolicy_inherit(zc, CRED())) != 0) { | |
3484 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); | |
3485 | VERIFY(nvlist_add_int32(errors, | |
3486 | zc->zc_value, err) == 0); | |
3487 | } | |
3488 | pair = next_pair; | |
b128c09f BB |
3489 | } |
3490 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3491 | |
3492 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3493 | nvlist_free(errors); | |
3494 | errors = NULL; | |
3495 | } else { | |
3496 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3497 | } | |
3498 | ||
3499 | if (errlist == NULL) | |
3500 | nvlist_free(errors); | |
3501 | else | |
3502 | *errlist = errors; | |
3503 | ||
3504 | return (rv); | |
3505 | } | |
3506 | ||
3507 | static boolean_t | |
3508 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3509 | { | |
3510 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3511 | /* dsl_prop_get_all_impl() format */ | |
3512 | nvlist_t *attrs; | |
3513 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3514 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3515 | &p1) == 0); | |
3516 | } | |
3517 | ||
3518 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3519 | nvlist_t *attrs; | |
3520 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3521 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3522 | &p2) == 0); | |
3523 | } | |
3524 | ||
3525 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3526 | return (B_FALSE); | |
3527 | ||
3528 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3529 | char *valstr1, *valstr2; | |
3530 | ||
3531 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3532 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3533 | return (strcmp(valstr1, valstr2) == 0); | |
3534 | } else { | |
3535 | uint64_t intval1, intval2; | |
3536 | ||
3537 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3538 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3539 | return (intval1 == intval2); | |
3540 | } | |
b128c09f BB |
3541 | } |
3542 | ||
428870ff BB |
3543 | /* |
3544 | * Remove properties from props if they are not going to change (as determined | |
3545 | * by comparison with origprops). Remove them from origprops as well, since we | |
3546 | * do not need to clear or restore properties that won't change. | |
3547 | */ | |
3548 | static void | |
3549 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3550 | { | |
3551 | nvpair_t *pair, *next_pair; | |
3552 | ||
3553 | if (origprops == NULL) | |
3554 | return; /* all props need to be received */ | |
3555 | ||
3556 | pair = nvlist_next_nvpair(props, NULL); | |
3557 | while (pair != NULL) { | |
3558 | const char *propname = nvpair_name(pair); | |
3559 | nvpair_t *match; | |
3560 | ||
3561 | next_pair = nvlist_next_nvpair(props, pair); | |
3562 | ||
3563 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3564 | &match) != 0) || !propval_equals(pair, match)) | |
3565 | goto next; /* need to set received value */ | |
3566 | ||
3567 | /* don't clear the existing received value */ | |
3568 | (void) nvlist_remove_nvpair(origprops, match); | |
3569 | /* don't bother receiving the property */ | |
3570 | (void) nvlist_remove_nvpair(props, pair); | |
3571 | next: | |
3572 | pair = next_pair; | |
3573 | } | |
3574 | } | |
3575 | ||
3576 | #ifdef DEBUG | |
3577 | static boolean_t zfs_ioc_recv_inject_err; | |
3578 | #endif | |
3579 | ||
34dc7c2f BB |
3580 | /* |
3581 | * inputs: | |
3582 | * zc_name name of containing filesystem | |
3583 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3584 | * zc_value name of snapshot to create | |
3585 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3586 | * zc_cookie file descriptor to recv from | |
3587 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3588 | * zc_guid force flag | |
572e2857 BB |
3589 | * zc_cleanup_fd cleanup-on-exit file descriptor |
3590 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
3591 | * |
3592 | * outputs: | |
3593 | * zc_cookie number of bytes read | |
428870ff BB |
3594 | * zc_nvlist_dst{_size} error for each unapplied received property |
3595 | * zc_obj zprop_errflags_t | |
572e2857 | 3596 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
3597 | */ |
3598 | static int | |
3599 | zfs_ioc_recv(zfs_cmd_t *zc) | |
3600 | { | |
3601 | file_t *fp; | |
3602 | objset_t *os; | |
3603 | dmu_recv_cookie_t drc; | |
34dc7c2f | 3604 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
3605 | int fd; |
3606 | int error = 0; | |
3607 | int props_error = 0; | |
3608 | nvlist_t *errors; | |
34dc7c2f | 3609 | offset_t off; |
428870ff BB |
3610 | nvlist_t *props = NULL; /* sent properties */ |
3611 | nvlist_t *origprops = NULL; /* existing properties */ | |
34dc7c2f BB |
3612 | objset_t *origin = NULL; |
3613 | char *tosnap; | |
3614 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 3615 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
3616 | |
3617 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3618 | strchr(zc->zc_value, '@') == NULL || | |
3619 | strchr(zc->zc_value, '%')) | |
3620 | return (EINVAL); | |
3621 | ||
3622 | (void) strcpy(tofs, zc->zc_value); | |
3623 | tosnap = strchr(tofs, '@'); | |
428870ff | 3624 | *tosnap++ = '\0'; |
34dc7c2f | 3625 | |
b8864a23 | 3626 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 3627 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3628 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
3629 | return (error); |
3630 | ||
3631 | fd = zc->zc_cookie; | |
3632 | fp = getf(fd); | |
3633 | if (fp == NULL) { | |
3634 | nvlist_free(props); | |
3635 | return (EBADF); | |
3636 | } | |
3637 | ||
428870ff BB |
3638 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
3639 | ||
3640 | if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) { | |
3641 | if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) && | |
3642 | !dsl_prop_get_hasrecvd(os)) { | |
3643 | first_recvd_props = B_TRUE; | |
3644 | } | |
3645 | ||
b128c09f | 3646 | /* |
428870ff BB |
3647 | * If new received properties are supplied, they are to |
3648 | * completely replace the existing received properties, so stash | |
3649 | * away the existing ones. | |
b128c09f | 3650 | */ |
428870ff BB |
3651 | if (dsl_prop_get_received(os, &origprops) == 0) { |
3652 | nvlist_t *errlist = NULL; | |
3653 | /* | |
3654 | * Don't bother writing a property if its value won't | |
3655 | * change (and avoid the unnecessary security checks). | |
3656 | * | |
3657 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
3658 | * special case where we blow away all local properties | |
3659 | * regardless. | |
3660 | */ | |
3661 | if (!first_recvd_props) | |
3662 | props_reduce(props, origprops); | |
3663 | if (zfs_check_clearable(tofs, origprops, | |
3664 | &errlist) != 0) | |
3665 | (void) nvlist_merge(errors, errlist, 0); | |
3666 | nvlist_free(errlist); | |
3667 | } | |
b128c09f | 3668 | |
428870ff | 3669 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
3670 | } |
3671 | ||
3672 | if (zc->zc_string[0]) { | |
428870ff | 3673 | error = dmu_objset_hold(zc->zc_string, FTAG, &origin); |
b128c09f BB |
3674 | if (error) |
3675 | goto out; | |
34dc7c2f BB |
3676 | } |
3677 | ||
428870ff BB |
3678 | error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds, |
3679 | &zc->zc_begin_record, force, origin, &drc); | |
34dc7c2f | 3680 | if (origin) |
428870ff | 3681 | dmu_objset_rele(origin, FTAG); |
b128c09f BB |
3682 | if (error) |
3683 | goto out; | |
34dc7c2f BB |
3684 | |
3685 | /* | |
428870ff BB |
3686 | * Set properties before we receive the stream so that they are applied |
3687 | * to the new data. Note that we must call dmu_recv_stream() if | |
3688 | * dmu_recv_begin() succeeds. | |
34dc7c2f BB |
3689 | */ |
3690 | if (props) { | |
428870ff BB |
3691 | nvlist_t *errlist; |
3692 | ||
3693 | if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) { | |
3694 | if (drc.drc_newfs) { | |
3695 | if (spa_version(os->os_spa) >= | |
3696 | SPA_VERSION_RECVD_PROPS) | |
3697 | first_recvd_props = B_TRUE; | |
3698 | } else if (origprops != NULL) { | |
3699 | if (clear_received_props(os, tofs, origprops, | |
3700 | first_recvd_props ? NULL : props) != 0) | |
3701 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3702 | } else { | |
3703 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3704 | } | |
3705 | dsl_prop_set_hasrecvd(os); | |
3706 | } else if (!drc.drc_newfs) { | |
3707 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3708 | } | |
3709 | ||
3710 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
3711 | props, &errlist); | |
3712 | (void) nvlist_merge(errors, errlist, 0); | |
3713 | nvlist_free(errlist); | |
3714 | } | |
3715 | ||
3716 | if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) { | |
b128c09f | 3717 | /* |
428870ff BB |
3718 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
3719 | * size or supplied an invalid address. | |
b128c09f | 3720 | */ |
428870ff | 3721 | props_error = EINVAL; |
34dc7c2f BB |
3722 | } |
3723 | ||
34dc7c2f | 3724 | off = fp->f_offset; |
572e2857 BB |
3725 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
3726 | &zc->zc_action_handle); | |
34dc7c2f | 3727 | |
45d1cae3 | 3728 | if (error == 0) { |
3558fd73 | 3729 | zfs_sb_t *zsb = NULL; |
b128c09f | 3730 | |
3558fd73 | 3731 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
3732 | /* online recv */ |
3733 | int end_err; | |
b128c09f | 3734 | |
3558fd73 | 3735 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
3736 | /* |
3737 | * If the suspend fails, then the recv_end will | |
3738 | * likely also fail, and clean up after itself. | |
3739 | */ | |
3740 | end_err = dmu_recv_end(&drc); | |
428870ff | 3741 | if (error == 0) |
3558fd73 | 3742 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 3743 | error = error ? error : end_err; |
2cf7f52b | 3744 | deactivate_super(zsb->z_sb); |
b128c09f | 3745 | } else { |
45d1cae3 | 3746 | error = dmu_recv_end(&drc); |
34dc7c2f | 3747 | } |
34dc7c2f BB |
3748 | } |
3749 | ||
3750 | zc->zc_cookie = off - fp->f_offset; | |
3751 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3752 | fp->f_offset = off; | |
3753 | ||
428870ff BB |
3754 | #ifdef DEBUG |
3755 | if (zfs_ioc_recv_inject_err) { | |
3756 | zfs_ioc_recv_inject_err = B_FALSE; | |
3757 | error = 1; | |
3758 | } | |
3759 | #endif | |
b128c09f BB |
3760 | /* |
3761 | * On error, restore the original props. | |
3762 | */ | |
3763 | if (error && props) { | |
428870ff BB |
3764 | if (dmu_objset_hold(tofs, FTAG, &os) == 0) { |
3765 | if (clear_received_props(os, tofs, props, NULL) != 0) { | |
3766 | /* | |
3767 | * We failed to clear the received properties. | |
3768 | * Since we may have left a $recvd value on the | |
3769 | * system, we can't clear the $hasrecvd flag. | |
3770 | */ | |
3771 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3772 | } else if (first_recvd_props) { | |
3773 | dsl_prop_unset_hasrecvd(os); | |
3774 | } | |
3775 | dmu_objset_rele(os, FTAG); | |
3776 | } else if (!drc.drc_newfs) { | |
3777 | /* We failed to clear the received properties. */ | |
3778 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3779 | } | |
3780 | ||
3781 | if (origprops == NULL && !drc.drc_newfs) { | |
3782 | /* We failed to stash the original properties. */ | |
3783 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3784 | } | |
3785 | ||
3786 | /* | |
3787 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
3788 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
3789 | * explictly if we're restoring local properties cleared in the | |
3790 | * first new-style receive. | |
3791 | */ | |
3792 | if (origprops != NULL && | |
3793 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
3794 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
3795 | origprops, NULL) != 0) { | |
3796 | /* | |
3797 | * We stashed the original properties but failed to | |
3798 | * restore them. | |
3799 | */ | |
3800 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3801 | } | |
b128c09f BB |
3802 | } |
3803 | out: | |
b128c09f BB |
3804 | nvlist_free(props); |
3805 | nvlist_free(origprops); | |
428870ff | 3806 | nvlist_free(errors); |
34dc7c2f | 3807 | releasef(fd); |
428870ff BB |
3808 | |
3809 | if (error == 0) | |
3810 | error = props_error; | |
3811 | ||
34dc7c2f BB |
3812 | return (error); |
3813 | } | |
3814 | ||
3815 | /* | |
3816 | * inputs: | |
3817 | * zc_name name of snapshot to send | |
34dc7c2f | 3818 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
3819 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
3820 | * zc_sendobj objsetid of snapshot to send | |
3821 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
3822 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
3823 | * output size in zc_objset_type. | |
34dc7c2f BB |
3824 | * |
3825 | * outputs: none | |
3826 | */ | |
3827 | static int | |
3828 | zfs_ioc_send(zfs_cmd_t *zc) | |
3829 | { | |
3830 | objset_t *fromsnap = NULL; | |
3831 | objset_t *tosnap; | |
34dc7c2f BB |
3832 | int error; |
3833 | offset_t off; | |
572e2857 BB |
3834 | dsl_dataset_t *ds; |
3835 | dsl_dataset_t *dsfrom = NULL; | |
3836 | spa_t *spa; | |
3837 | dsl_pool_t *dp; | |
330d06f9 | 3838 | boolean_t estimate = (zc->zc_guid != 0); |
34dc7c2f | 3839 | |
572e2857 | 3840 | error = spa_open(zc->zc_name, &spa, FTAG); |
34dc7c2f BB |
3841 | if (error) |
3842 | return (error); | |
3843 | ||
572e2857 BB |
3844 | dp = spa_get_dsl(spa); |
3845 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3846 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
3847 | rw_exit(&dp->dp_config_rwlock); | |
3848 | if (error) { | |
3849 | spa_close(spa, FTAG); | |
3850 | return (error); | |
3851 | } | |
3852 | ||
3853 | error = dmu_objset_from_ds(ds, &tosnap); | |
3854 | if (error) { | |
3855 | dsl_dataset_rele(ds, FTAG); | |
3856 | spa_close(spa, FTAG); | |
3857 | return (error); | |
3858 | } | |
3859 | ||
3860 | if (zc->zc_fromobj != 0) { | |
3861 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3862 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, FTAG, &dsfrom); | |
3863 | rw_exit(&dp->dp_config_rwlock); | |
3864 | spa_close(spa, FTAG); | |
3865 | if (error) { | |
3866 | dsl_dataset_rele(ds, FTAG); | |
3867 | return (error); | |
3868 | } | |
3869 | error = dmu_objset_from_ds(dsfrom, &fromsnap); | |
34dc7c2f | 3870 | if (error) { |
572e2857 BB |
3871 | dsl_dataset_rele(dsfrom, FTAG); |
3872 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3873 | return (error); |
3874 | } | |
572e2857 BB |
3875 | } else { |
3876 | spa_close(spa, FTAG); | |
34dc7c2f BB |
3877 | } |
3878 | ||
330d06f9 MA |
3879 | if (estimate) { |
3880 | error = dmu_send_estimate(tosnap, fromsnap, zc->zc_obj, | |
3881 | &zc->zc_objset_type); | |
3882 | } else { | |
3883 | file_t *fp = getf(zc->zc_cookie); | |
3884 | if (fp == NULL) { | |
3885 | dsl_dataset_rele(ds, FTAG); | |
3886 | if (dsfrom) | |
3887 | dsl_dataset_rele(dsfrom, FTAG); | |
3888 | return (EBADF); | |
3889 | } | |
34dc7c2f | 3890 | |
330d06f9 MA |
3891 | off = fp->f_offset; |
3892 | error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, | |
3893 | fp->f_vnode, &off); | |
34dc7c2f | 3894 | |
330d06f9 MA |
3895 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
3896 | fp->f_offset = off; | |
3897 | releasef(zc->zc_cookie); | |
3898 | } | |
572e2857 BB |
3899 | if (dsfrom) |
3900 | dsl_dataset_rele(dsfrom, FTAG); | |
3901 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3902 | return (error); |
3903 | } | |
3904 | ||
3905 | static int | |
3906 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
3907 | { | |
3908 | int id, error; | |
3909 | ||
3910 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
3911 | &zc->zc_inject_record); | |
3912 | ||
3913 | if (error == 0) | |
3914 | zc->zc_guid = (uint64_t)id; | |
3915 | ||
3916 | return (error); | |
3917 | } | |
3918 | ||
3919 | static int | |
3920 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
3921 | { | |
3922 | return (zio_clear_fault((int)zc->zc_guid)); | |
3923 | } | |
3924 | ||
3925 | static int | |
3926 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
3927 | { | |
3928 | int id = (int)zc->zc_guid; | |
3929 | int error; | |
3930 | ||
3931 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
3932 | &zc->zc_inject_record); | |
3933 | ||
3934 | zc->zc_guid = id; | |
3935 | ||
3936 | return (error); | |
3937 | } | |
3938 | ||
3939 | static int | |
3940 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
3941 | { | |
3942 | spa_t *spa; | |
3943 | int error; | |
3944 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
3945 | ||
3946 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
3947 | return (error); | |
3948 | ||
3949 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
3950 | &count); | |
3951 | if (error == 0) | |
3952 | zc->zc_nvlist_dst_size = count; | |
3953 | else | |
3954 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
3955 | ||
3956 | spa_close(spa, FTAG); | |
3957 | ||
3958 | return (error); | |
3959 | } | |
3960 | ||
3961 | static int | |
3962 | zfs_ioc_clear(zfs_cmd_t *zc) | |
3963 | { | |
3964 | spa_t *spa; | |
3965 | vdev_t *vd; | |
34dc7c2f BB |
3966 | int error; |
3967 | ||
34dc7c2f | 3968 | /* |
b128c09f | 3969 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 3970 | */ |
b128c09f BB |
3971 | mutex_enter(&spa_namespace_lock); |
3972 | spa = spa_lookup(zc->zc_name); | |
3973 | if (spa == NULL) { | |
3974 | mutex_exit(&spa_namespace_lock); | |
3975 | return (EIO); | |
3976 | } | |
428870ff | 3977 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 3978 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 3979 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 3980 | } |
428870ff | 3981 | spa->spa_last_open_failed = 0; |
b128c09f | 3982 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 3983 | |
428870ff BB |
3984 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
3985 | error = spa_open(zc->zc_name, &spa, FTAG); | |
3986 | } else { | |
3987 | nvlist_t *policy; | |
3988 | nvlist_t *config = NULL; | |
3989 | ||
b8864a23 | 3990 | if (zc->zc_nvlist_src == 0) |
428870ff BB |
3991 | return (EINVAL); |
3992 | ||
3993 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
3994 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
3995 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
3996 | policy, &config); | |
3997 | if (config != NULL) { | |
572e2857 BB |
3998 | int err; |
3999 | ||
4000 | if ((err = put_nvlist(zc, config)) != 0) | |
4001 | error = err; | |
428870ff BB |
4002 | nvlist_free(config); |
4003 | } | |
4004 | nvlist_free(policy); | |
4005 | } | |
4006 | } | |
4007 | ||
4008 | if (error) | |
b128c09f BB |
4009 | return (error); |
4010 | ||
428870ff | 4011 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4012 | |
4013 | if (zc->zc_guid == 0) { | |
4014 | vd = NULL; | |
b128c09f BB |
4015 | } else { |
4016 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4017 | if (vd == NULL) { |
b128c09f | 4018 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f BB |
4019 | spa_close(spa, FTAG); |
4020 | return (ENODEV); | |
4021 | } | |
4022 | } | |
4023 | ||
b128c09f BB |
4024 | vdev_clear(spa, vd); |
4025 | ||
4026 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4027 | |
b128c09f BB |
4028 | /* |
4029 | * Resume any suspended I/Os. | |
4030 | */ | |
9babb374 BB |
4031 | if (zio_resume(spa) != 0) |
4032 | error = EIO; | |
34dc7c2f BB |
4033 | |
4034 | spa_close(spa, FTAG); | |
4035 | ||
9babb374 | 4036 | return (error); |
34dc7c2f BB |
4037 | } |
4038 | ||
4039 | /* | |
4040 | * inputs: | |
4041 | * zc_name name of filesystem | |
4042 | * zc_value name of origin snapshot | |
4043 | * | |
428870ff BB |
4044 | * outputs: |
4045 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4046 | */ |
4047 | static int | |
4048 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4049 | { | |
4050 | char *cp; | |
4051 | ||
4052 | /* | |
4053 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4054 | * it's easier. | |
4055 | */ | |
4056 | cp = strchr(zc->zc_value, '@'); | |
4057 | if (cp) | |
4058 | *cp = '\0'; | |
4059 | (void) dmu_objset_find(zc->zc_value, | |
4060 | zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); | |
428870ff | 4061 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4062 | } |
4063 | ||
9babb374 BB |
4064 | /* |
4065 | * Retrieve a single {user|group}{used|quota}@... property. | |
4066 | * | |
4067 | * inputs: | |
4068 | * zc_name name of filesystem | |
4069 | * zc_objset_type zfs_userquota_prop_t | |
4070 | * zc_value domain name (eg. "S-1-234-567-89") | |
4071 | * zc_guid RID/UID/GID | |
4072 | * | |
4073 | * outputs: | |
4074 | * zc_cookie property value | |
4075 | */ | |
4076 | static int | |
4077 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4078 | { | |
3558fd73 | 4079 | zfs_sb_t *zsb; |
9babb374 BB |
4080 | int error; |
4081 | ||
4082 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
4083 | return (EINVAL); | |
4084 | ||
3558fd73 | 4085 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
9babb374 BB |
4086 | if (error) |
4087 | return (error); | |
4088 | ||
3558fd73 | 4089 | error = zfs_userspace_one(zsb, |
9babb374 | 4090 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4091 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4092 | |
4093 | return (error); | |
4094 | } | |
4095 | ||
4096 | /* | |
4097 | * inputs: | |
4098 | * zc_name name of filesystem | |
4099 | * zc_cookie zap cursor | |
4100 | * zc_objset_type zfs_userquota_prop_t | |
4101 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4102 | * | |
4103 | * outputs: | |
4104 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4105 | * zc_cookie zap cursor | |
4106 | */ | |
4107 | static int | |
4108 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4109 | { | |
3558fd73 | 4110 | zfs_sb_t *zsb; |
428870ff | 4111 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4112 | int error; |
4113 | void *buf; | |
428870ff BB |
4114 | |
4115 | if (bufsize <= 0) | |
4116 | return (ENOMEM); | |
9babb374 | 4117 | |
3558fd73 | 4118 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
9babb374 BB |
4119 | if (error) |
4120 | return (error); | |
4121 | ||
2b8cad61 | 4122 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4123 | |
3558fd73 | 4124 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4125 | buf, &zc->zc_nvlist_dst_size); |
4126 | ||
4127 | if (error == 0) { | |
4128 | error = xcopyout(buf, | |
4129 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4130 | zc->zc_nvlist_dst_size); | |
4131 | } | |
2b8cad61 | 4132 | vmem_free(buf, bufsize); |
3558fd73 | 4133 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4134 | |
4135 | return (error); | |
4136 | } | |
4137 | ||
4138 | /* | |
4139 | * inputs: | |
4140 | * zc_name name of filesystem | |
4141 | * | |
4142 | * outputs: | |
4143 | * none | |
4144 | */ | |
4145 | static int | |
4146 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4147 | { | |
4148 | objset_t *os; | |
428870ff | 4149 | int error = 0; |
3558fd73 | 4150 | zfs_sb_t *zsb; |
9babb374 | 4151 | |
3558fd73 BB |
4152 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4153 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4154 | /* |
4155 | * If userused is not enabled, it may be because the | |
4156 | * objset needs to be closed & reopened (to grow the | |
4157 | * objset_phys_t). Suspend/resume the fs will do that. | |
4158 | */ | |
3558fd73 | 4159 | error = zfs_suspend_fs(zsb); |
428870ff | 4160 | if (error == 0) |
3558fd73 | 4161 | error = zfs_resume_fs(zsb, zc->zc_name); |
9babb374 BB |
4162 | } |
4163 | if (error == 0) | |
3558fd73 | 4164 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4165 | deactivate_super(zsb->z_sb); |
9babb374 | 4166 | } else { |
428870ff BB |
4167 | /* XXX kind of reading contents without owning */ |
4168 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
9babb374 BB |
4169 | if (error) |
4170 | return (error); | |
4171 | ||
4172 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4173 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4174 | } |
4175 | ||
4176 | return (error); | |
4177 | } | |
4178 | ||
34dc7c2f BB |
4179 | static int |
4180 | zfs_ioc_share(zfs_cmd_t *zc) | |
4181 | { | |
46e18b3f | 4182 | return (ENOSYS); |
34dc7c2f BB |
4183 | } |
4184 | ||
9babb374 BB |
4185 | ace_t full_access[] = { |
4186 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4187 | }; | |
4188 | ||
572e2857 BB |
4189 | /* |
4190 | * inputs: | |
4191 | * zc_name name of containing filesystem | |
4192 | * zc_obj object # beyond which we want next in-use object # | |
4193 | * | |
4194 | * outputs: | |
4195 | * zc_obj next in-use object # | |
4196 | */ | |
4197 | static int | |
4198 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4199 | { | |
4200 | objset_t *os = NULL; | |
4201 | int error; | |
4202 | ||
4203 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
4204 | if (error) | |
4205 | return (error); | |
4206 | ||
4207 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
4208 | os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); | |
4209 | ||
4210 | dmu_objset_rele(os, FTAG); | |
4211 | return (error); | |
4212 | } | |
4213 | ||
4214 | /* | |
4215 | * inputs: | |
4216 | * zc_name name of filesystem | |
4217 | * zc_value prefix name for snapshot | |
4218 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4219 | * | |
4220 | * outputs: | |
4221 | */ | |
4222 | static int | |
4223 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4224 | { | |
4225 | char *snap_name; | |
4226 | int error; | |
4227 | ||
4228 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, | |
4229 | (u_longlong_t)ddi_get_lbolt64()); | |
4230 | ||
4231 | if (strlen(snap_name) >= MAXNAMELEN) { | |
4232 | strfree(snap_name); | |
4233 | return (E2BIG); | |
4234 | } | |
4235 | ||
4236 | error = dmu_objset_snapshot(zc->zc_name, snap_name, snap_name, | |
4237 | NULL, B_FALSE, B_TRUE, zc->zc_cleanup_fd); | |
4238 | if (error != 0) { | |
4239 | strfree(snap_name); | |
4240 | return (error); | |
4241 | } | |
4242 | ||
4243 | (void) strcpy(zc->zc_value, snap_name); | |
4244 | strfree(snap_name); | |
4245 | return (0); | |
4246 | } | |
4247 | ||
4248 | /* | |
4249 | * inputs: | |
4250 | * zc_name name of "to" snapshot | |
4251 | * zc_value name of "from" snapshot | |
4252 | * zc_cookie file descriptor to write diff data on | |
4253 | * | |
4254 | * outputs: | |
4255 | * dmu_diff_record_t's to the file descriptor | |
4256 | */ | |
4257 | static int | |
4258 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4259 | { | |
4260 | objset_t *fromsnap; | |
4261 | objset_t *tosnap; | |
4262 | file_t *fp; | |
4263 | offset_t off; | |
4264 | int error; | |
4265 | ||
4266 | error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap); | |
4267 | if (error) | |
4268 | return (error); | |
4269 | ||
4270 | error = dmu_objset_hold(zc->zc_value, FTAG, &fromsnap); | |
4271 | if (error) { | |
4272 | dmu_objset_rele(tosnap, FTAG); | |
4273 | return (error); | |
4274 | } | |
4275 | ||
4276 | fp = getf(zc->zc_cookie); | |
4277 | if (fp == NULL) { | |
4278 | dmu_objset_rele(fromsnap, FTAG); | |
4279 | dmu_objset_rele(tosnap, FTAG); | |
4280 | return (EBADF); | |
4281 | } | |
4282 | ||
4283 | off = fp->f_offset; | |
4284 | ||
4285 | error = dmu_diff(tosnap, fromsnap, fp->f_vnode, &off); | |
4286 | ||
4287 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4288 | fp->f_offset = off; | |
4289 | releasef(zc->zc_cookie); | |
4290 | ||
4291 | dmu_objset_rele(fromsnap, FTAG); | |
4292 | dmu_objset_rele(tosnap, FTAG); | |
4293 | return (error); | |
4294 | } | |
4295 | ||
9babb374 BB |
4296 | /* |
4297 | * Remove all ACL files in shares dir | |
4298 | */ | |
3c9609b3 | 4299 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4300 | static int |
4301 | zfs_smb_acl_purge(znode_t *dzp) | |
4302 | { | |
4303 | zap_cursor_t zc; | |
4304 | zap_attribute_t zap; | |
3558fd73 | 4305 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4306 | int error; |
4307 | ||
3558fd73 | 4308 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4309 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4310 | zap_cursor_advance(&zc)) { | |
4311 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4312 | NULL, 0)) != 0) | |
4313 | break; | |
4314 | } | |
4315 | zap_cursor_fini(&zc); | |
4316 | return (error); | |
4317 | } | |
3c9609b3 | 4318 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4319 | |
4320 | static int | |
4321 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4322 | { | |
3c9609b3 | 4323 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4324 | vnode_t *vp; |
4325 | znode_t *dzp; | |
4326 | vnode_t *resourcevp = NULL; | |
4327 | znode_t *sharedir; | |
3558fd73 | 4328 | zfs_sb_t *zsb; |
9babb374 BB |
4329 | nvlist_t *nvlist; |
4330 | char *src, *target; | |
4331 | vattr_t vattr; | |
4332 | vsecattr_t vsec; | |
4333 | int error = 0; | |
4334 | ||
4335 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4336 | NO_FOLLOW, NULL, &vp)) != 0) | |
4337 | return (error); | |
4338 | ||
4339 | /* Now make sure mntpnt and dataset are ZFS */ | |
4340 | ||
4341 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4342 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4343 | zc->zc_name) != 0)) { | |
4344 | VN_RELE(vp); | |
4345 | return (EINVAL); | |
4346 | } | |
4347 | ||
4348 | dzp = VTOZ(vp); | |
3558fd73 BB |
4349 | zsb = ZTOZSB(dzp); |
4350 | ZFS_ENTER(zsb); | |
9babb374 BB |
4351 | |
4352 | /* | |
4353 | * Create share dir if its missing. | |
4354 | */ | |
3558fd73 BB |
4355 | mutex_enter(&zsb->z_lock); |
4356 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4357 | dmu_tx_t *tx; |
4358 | ||
3558fd73 | 4359 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4360 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4361 | ZFS_SHARES_DIR); | |
4362 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4363 | error = dmu_tx_assign(tx, TXG_WAIT); | |
4364 | if (error) { | |
4365 | dmu_tx_abort(tx); | |
4366 | } else { | |
3558fd73 | 4367 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4368 | dmu_tx_commit(tx); |
4369 | } | |
4370 | if (error) { | |
3558fd73 | 4371 | mutex_exit(&zsb->z_lock); |
9babb374 | 4372 | VN_RELE(vp); |
3558fd73 | 4373 | ZFS_EXIT(zsb); |
9babb374 BB |
4374 | return (error); |
4375 | } | |
4376 | } | |
3558fd73 | 4377 | mutex_exit(&zsb->z_lock); |
9babb374 | 4378 | |
3558fd73 BB |
4379 | ASSERT(zsb->z_shares_dir); |
4380 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4381 | VN_RELE(vp); |
3558fd73 | 4382 | ZFS_EXIT(zsb); |
9babb374 BB |
4383 | return (error); |
4384 | } | |
4385 | ||
4386 | switch (zc->zc_cookie) { | |
4387 | case ZFS_SMB_ACL_ADD: | |
4388 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4389 | vattr.va_mode = S_IFREG|0777; |
4390 | vattr.va_uid = 0; | |
4391 | vattr.va_gid = 0; | |
4392 | ||
4393 | vsec.vsa_mask = VSA_ACE; | |
4394 | vsec.vsa_aclentp = &full_access; | |
4395 | vsec.vsa_aclentsz = sizeof (full_access); | |
4396 | vsec.vsa_aclcnt = 1; | |
4397 | ||
4398 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4399 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4400 | if (resourcevp) | |
4401 | VN_RELE(resourcevp); | |
4402 | break; | |
4403 | ||
4404 | case ZFS_SMB_ACL_REMOVE: | |
4405 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4406 | NULL, 0); | |
4407 | break; | |
4408 | ||
4409 | case ZFS_SMB_ACL_RENAME: | |
4410 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4411 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4412 | VN_RELE(vp); | |
3558fd73 | 4413 | ZFS_EXIT(zsb); |
9babb374 BB |
4414 | return (error); |
4415 | } | |
4416 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4417 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4418 | &target)) { | |
4419 | VN_RELE(vp); | |
4420 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4421 | ZFS_EXIT(zsb); |
428870ff | 4422 | nvlist_free(nvlist); |
9babb374 BB |
4423 | return (error); |
4424 | } | |
4425 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4426 | kcred, NULL, 0); | |
4427 | nvlist_free(nvlist); | |
4428 | break; | |
4429 | ||
4430 | case ZFS_SMB_ACL_PURGE: | |
4431 | error = zfs_smb_acl_purge(sharedir); | |
4432 | break; | |
4433 | ||
4434 | default: | |
4435 | error = EINVAL; | |
4436 | break; | |
4437 | } | |
4438 | ||
4439 | VN_RELE(vp); | |
4440 | VN_RELE(ZTOV(sharedir)); | |
4441 | ||
3558fd73 | 4442 | ZFS_EXIT(zsb); |
9babb374 BB |
4443 | |
4444 | return (error); | |
325f0235 BB |
4445 | #else |
4446 | return (ENOTSUP); | |
3c9609b3 | 4447 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4448 | } |
4449 | ||
45d1cae3 BB |
4450 | /* |
4451 | * inputs: | |
572e2857 BB |
4452 | * zc_name name of filesystem |
4453 | * zc_value short name of snap | |
4454 | * zc_string user-supplied tag for this hold | |
4455 | * zc_cookie recursive flag | |
4456 | * zc_temphold set if hold is temporary | |
4457 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4458 | * zc_sendobj if non-zero, the objid for zc_name@zc_value | |
4459 | * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg | |
45d1cae3 BB |
4460 | * |
4461 | * outputs: none | |
4462 | */ | |
4463 | static int | |
4464 | zfs_ioc_hold(zfs_cmd_t *zc) | |
4465 | { | |
4466 | boolean_t recursive = zc->zc_cookie; | |
572e2857 BB |
4467 | spa_t *spa; |
4468 | dsl_pool_t *dp; | |
4469 | dsl_dataset_t *ds; | |
4470 | int error; | |
4471 | minor_t minor = 0; | |
45d1cae3 BB |
4472 | |
4473 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4474 | return (EINVAL); | |
4475 | ||
572e2857 BB |
4476 | if (zc->zc_sendobj == 0) { |
4477 | return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value, | |
4478 | zc->zc_string, recursive, zc->zc_temphold, | |
4479 | zc->zc_cleanup_fd)); | |
4480 | } | |
4481 | ||
4482 | if (recursive) | |
4483 | return (EINVAL); | |
4484 | ||
4485 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4486 | if (error) | |
4487 | return (error); | |
4488 | ||
4489 | dp = spa_get_dsl(spa); | |
4490 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
4491 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
4492 | rw_exit(&dp->dp_config_rwlock); | |
4493 | spa_close(spa, FTAG); | |
4494 | if (error) | |
4495 | return (error); | |
4496 | ||
4497 | /* | |
4498 | * Until we have a hold on this snapshot, it's possible that | |
4499 | * zc_sendobj could've been destroyed and reused as part | |
4500 | * of a later txg. Make sure we're looking at the right object. | |
4501 | */ | |
4502 | if (zc->zc_createtxg != ds->ds_phys->ds_creation_txg) { | |
4503 | dsl_dataset_rele(ds, FTAG); | |
4504 | return (ENOENT); | |
4505 | } | |
4506 | ||
4507 | if (zc->zc_cleanup_fd != -1 && zc->zc_temphold) { | |
4508 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); | |
4509 | if (error) { | |
4510 | dsl_dataset_rele(ds, FTAG); | |
4511 | return (error); | |
4512 | } | |
4513 | } | |
4514 | ||
4515 | error = dsl_dataset_user_hold_for_send(ds, zc->zc_string, | |
4516 | zc->zc_temphold); | |
4517 | if (minor != 0) { | |
4518 | if (error == 0) { | |
4519 | dsl_register_onexit_hold_cleanup(ds, zc->zc_string, | |
4520 | minor); | |
4521 | } | |
4522 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4523 | } | |
4524 | dsl_dataset_rele(ds, FTAG); | |
4525 | ||
4526 | return (error); | |
45d1cae3 BB |
4527 | } |
4528 | ||
4529 | /* | |
4530 | * inputs: | |
572e2857 | 4531 | * zc_name name of dataset from which we're releasing a user hold |
45d1cae3 | 4532 | * zc_value short name of snap |
572e2857 | 4533 | * zc_string user-supplied tag for this hold |
45d1cae3 BB |
4534 | * zc_cookie recursive flag |
4535 | * | |
572e2857 | 4536 | * outputs: none |
45d1cae3 BB |
4537 | */ |
4538 | static int | |
4539 | zfs_ioc_release(zfs_cmd_t *zc) | |
4540 | { | |
4541 | boolean_t recursive = zc->zc_cookie; | |
4542 | ||
4543 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4544 | return (EINVAL); | |
4545 | ||
4546 | return (dsl_dataset_user_release(zc->zc_name, zc->zc_value, | |
4547 | zc->zc_string, recursive)); | |
4548 | } | |
4549 | ||
4550 | /* | |
4551 | * inputs: | |
4552 | * zc_name name of filesystem | |
4553 | * | |
4554 | * outputs: | |
4555 | * zc_nvlist_src{_size} nvlist of snapshot holds | |
4556 | */ | |
4557 | static int | |
4558 | zfs_ioc_get_holds(zfs_cmd_t *zc) | |
4559 | { | |
4560 | nvlist_t *nvp; | |
4561 | int error; | |
4562 | ||
4563 | if ((error = dsl_dataset_get_holds(zc->zc_name, &nvp)) == 0) { | |
4564 | error = put_nvlist(zc, nvp); | |
4565 | nvlist_free(nvp); | |
4566 | } | |
4567 | ||
4568 | return (error); | |
4569 | } | |
4570 | ||
26685276 BB |
4571 | /* |
4572 | * inputs: | |
4573 | * zc_guid flags (ZEVENT_NONBLOCK) | |
4574 | * | |
4575 | * outputs: | |
4576 | * zc_nvlist_dst next nvlist event | |
4577 | * zc_cookie dropped events since last get | |
4578 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4579 | */ | |
4580 | static int | |
4581 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
4582 | { | |
4583 | zfs_zevent_t *ze; | |
4584 | nvlist_t *event = NULL; | |
4585 | minor_t minor; | |
4586 | uint64_t dropped = 0; | |
4587 | int error; | |
4588 | ||
4589 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
4590 | if (error != 0) | |
4591 | return (error); | |
4592 | ||
4593 | do { | |
baa40d45 BB |
4594 | error = zfs_zevent_next(ze, &event, |
4595 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
4596 | if (event != NULL) { |
4597 | zc->zc_cookie = dropped; | |
4598 | error = put_nvlist(zc, event); | |
baa40d45 | 4599 | nvlist_free(event); |
26685276 BB |
4600 | } |
4601 | ||
4602 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
4603 | break; | |
4604 | ||
4605 | if ((error == 0) || (error != ENOENT)) | |
4606 | break; | |
4607 | ||
4608 | error = zfs_zevent_wait(ze); | |
4609 | if (error) | |
4610 | break; | |
4611 | } while (1); | |
4612 | ||
4613 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
4614 | ||
4615 | return (error); | |
4616 | } | |
4617 | ||
4618 | /* | |
4619 | * outputs: | |
4620 | * zc_cookie cleared events count | |
4621 | */ | |
4622 | static int | |
4623 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
4624 | { | |
4625 | int count; | |
4626 | ||
4627 | zfs_zevent_drain_all(&count); | |
4628 | zc->zc_cookie = count; | |
4629 | ||
4630 | return 0; | |
4631 | } | |
4632 | ||
330d06f9 MA |
4633 | /* |
4634 | * inputs: | |
4635 | * zc_name name of new filesystem or snapshot | |
4636 | * zc_value full name of old snapshot | |
4637 | * | |
4638 | * outputs: | |
4639 | * zc_cookie space in bytes | |
4640 | * zc_objset_type compressed space in bytes | |
4641 | * zc_perm_action uncompressed space in bytes | |
4642 | */ | |
4643 | static int | |
4644 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
4645 | { | |
4646 | int error; | |
4647 | dsl_dataset_t *new, *old; | |
4648 | ||
4649 | error = dsl_dataset_hold(zc->zc_name, FTAG, &new); | |
4650 | if (error != 0) | |
4651 | return (error); | |
4652 | error = dsl_dataset_hold(zc->zc_value, FTAG, &old); | |
4653 | if (error != 0) { | |
4654 | dsl_dataset_rele(new, FTAG); | |
4655 | return (error); | |
4656 | } | |
4657 | ||
4658 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
4659 | &zc->zc_objset_type, &zc->zc_perm_action); | |
4660 | dsl_dataset_rele(old, FTAG); | |
4661 | dsl_dataset_rele(new, FTAG); | |
4662 | return (error); | |
4663 | } | |
4664 | ||
4665 | /* | |
4666 | * inputs: | |
4667 | * zc_name full name of last snapshot | |
4668 | * zc_value full name of first snapshot | |
4669 | * | |
4670 | * outputs: | |
4671 | * zc_cookie space in bytes | |
4672 | * zc_objset_type compressed space in bytes | |
4673 | * zc_perm_action uncompressed space in bytes | |
4674 | */ | |
4675 | static int | |
4676 | zfs_ioc_space_snaps(zfs_cmd_t *zc) | |
4677 | { | |
4678 | int error; | |
4679 | dsl_dataset_t *new, *old; | |
4680 | ||
4681 | error = dsl_dataset_hold(zc->zc_name, FTAG, &new); | |
4682 | if (error != 0) | |
4683 | return (error); | |
4684 | error = dsl_dataset_hold(zc->zc_value, FTAG, &old); | |
4685 | if (error != 0) { | |
4686 | dsl_dataset_rele(new, FTAG); | |
4687 | return (error); | |
4688 | } | |
4689 | ||
4690 | error = dsl_dataset_space_wouldfree(old, new, &zc->zc_cookie, | |
4691 | &zc->zc_objset_type, &zc->zc_perm_action); | |
4692 | dsl_dataset_rele(old, FTAG); | |
4693 | dsl_dataset_rele(new, FTAG); | |
4694 | return (error); | |
4695 | } | |
4696 | ||
34dc7c2f BB |
4697 | /* |
4698 | * pool create, destroy, and export don't log the history as part of | |
4699 | * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export | |
4700 | * do the logging of those commands. | |
4701 | */ | |
4702 | static zfs_ioc_vec_t zfs_ioc_vec[] = { | |
9babb374 | 4703 | { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4704 | POOL_CHECK_NONE }, |
9babb374 | 4705 | { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4706 | POOL_CHECK_NONE }, |
9babb374 | 4707 | { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4708 | POOL_CHECK_NONE }, |
9babb374 | 4709 | { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4710 | POOL_CHECK_NONE }, |
9babb374 | 4711 | { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE, |
572e2857 | 4712 | POOL_CHECK_NONE }, |
9babb374 | 4713 | { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4714 | POOL_CHECK_NONE }, |
9babb374 | 4715 | { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4716 | POOL_CHECK_NONE }, |
428870ff | 4717 | { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4718 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4719 | { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4720 | POOL_CHECK_READONLY }, |
9babb374 | 4721 | { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4722 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4723 | { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4724 | POOL_CHECK_NONE }, |
9babb374 | 4725 | { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4726 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4727 | { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4728 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4729 | { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4730 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4731 | { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4732 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4733 | { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4734 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4735 | { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4736 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4737 | { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4738 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4739 | { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4740 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4741 | { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4742 | POOL_CHECK_NONE }, |
9babb374 | 4743 | { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4744 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4745 | { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4746 | POOL_CHECK_SUSPENDED }, |
4747 | { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE, | |
4748 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
60101509 BB |
4749 | { zfs_ioc_create_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE, |
4750 | POOL_CHECK_NONE }, | |
4751 | { zfs_ioc_remove_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE, | |
4752 | POOL_CHECK_NONE }, | |
572e2857 BB |
4753 | { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE, |
4754 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
9babb374 | 4755 | { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE, |
572e2857 | 4756 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4757 | { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE, |
572e2857 BB |
4758 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4759 | { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE, | |
4760 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4761 | { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE, | |
4762 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
330d06f9 | 4763 | { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_FALSE, |
572e2857 | 4764 | POOL_CHECK_NONE }, |
9babb374 | 4765 | { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4766 | POOL_CHECK_NONE }, |
9babb374 | 4767 | { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4768 | POOL_CHECK_NONE }, |
9babb374 | 4769 | { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4770 | POOL_CHECK_NONE }, |
9babb374 | 4771 | { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE, |
572e2857 BB |
4772 | POOL_CHECK_NONE }, |
4773 | { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4774 | POOL_CHECK_NONE }, | |
9babb374 | 4775 | { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE, |
572e2857 | 4776 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
330d06f9 MA |
4777 | { zfs_ioc_destroy_snaps_nvl, zfs_secpolicy_destroy_recursive, |
4778 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
9babb374 | 4779 | { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE, |
572e2857 BB |
4780 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4781 | { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_diff, POOL_NAME, B_FALSE, | |
4782 | POOL_CHECK_NONE }, | |
4783 | { zfs_ioc_obj_to_path, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4784 | POOL_CHECK_SUSPENDED }, | |
9babb374 | 4785 | { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4786 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4787 | { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4788 | POOL_CHECK_NONE }, |
9babb374 | 4789 | { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE, |
572e2857 | 4790 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4791 | { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4792 | POOL_CHECK_NONE }, |
4793 | { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE, | |
4794 | POOL_CHECK_NONE }, | |
9babb374 | 4795 | { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE, |
572e2857 | 4796 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4797 | { zfs_ioc_smb_acl, zfs_secpolicy_smb_acl, DATASET_NAME, B_FALSE, |
572e2857 BB |
4798 | POOL_CHECK_NONE }, |
4799 | { zfs_ioc_userspace_one, zfs_secpolicy_userspace_one, DATASET_NAME, | |
4800 | B_FALSE, POOL_CHECK_NONE }, | |
4801 | { zfs_ioc_userspace_many, zfs_secpolicy_userspace_many, DATASET_NAME, | |
4802 | B_FALSE, POOL_CHECK_NONE }, | |
9babb374 | 4803 | { zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, |
572e2857 BB |
4804 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4805 | { zfs_ioc_hold, zfs_secpolicy_hold, DATASET_NAME, B_TRUE, | |
4806 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
45d1cae3 | 4807 | { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE, |
572e2857 | 4808 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
45d1cae3 | 4809 | { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4810 | POOL_CHECK_SUSPENDED }, |
428870ff | 4811 | { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4812 | POOL_CHECK_NONE }, |
428870ff | 4813 | { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 BB |
4814 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4815 | { zfs_ioc_next_obj, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4816 | POOL_CHECK_NONE }, | |
4817 | { zfs_ioc_diff, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4818 | POOL_CHECK_NONE }, | |
4819 | { zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, DATASET_NAME, | |
4820 | B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4821 | { zfs_ioc_obj_to_stats, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
26685276 BB |
4822 | POOL_CHECK_SUSPENDED }, |
4823 | { zfs_ioc_events_next, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
4824 | POOL_CHECK_NONE }, | |
4825 | { zfs_ioc_events_clear, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
330d06f9 MA |
4826 | POOL_CHECK_NONE }, |
4827 | { zfs_ioc_pool_reguid, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4828 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4829 | { zfs_ioc_space_written, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4830 | POOL_CHECK_SUSPENDED }, | |
4831 | { zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4832 | POOL_CHECK_SUSPENDED }, | |
34dc7c2f BB |
4833 | }; |
4834 | ||
9babb374 | 4835 | int |
572e2857 BB |
4836 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
4837 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
4838 | { |
4839 | spa_t *spa; | |
4840 | int error; | |
4841 | ||
4842 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
4843 | ||
572e2857 BB |
4844 | if (check & POOL_CHECK_NONE) |
4845 | return (0); | |
4846 | ||
9babb374 BB |
4847 | error = spa_open(name, &spa, FTAG); |
4848 | if (error == 0) { | |
572e2857 | 4849 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
9babb374 | 4850 | error = EAGAIN; |
572e2857 BB |
4851 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
4852 | error = EROFS; | |
9babb374 BB |
4853 | spa_close(spa, FTAG); |
4854 | } | |
4855 | return (error); | |
4856 | } | |
4857 | ||
325f0235 BB |
4858 | static void * |
4859 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
4860 | { | |
4861 | zfsdev_state_t *zs; | |
4862 | ||
4863 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4864 | ||
4865 | for (zs = list_head(&zfsdev_state_list); zs != NULL; | |
4866 | zs = list_next(&zfsdev_state_list, zs)) { | |
4867 | if (zs->zs_minor == minor) { | |
4868 | switch (which) { | |
4869 | case ZST_ONEXIT: return (zs->zs_onexit); | |
4870 | case ZST_ZEVENT: return (zs->zs_zevent); | |
4871 | case ZST_ALL: return (zs); | |
4872 | } | |
4873 | } | |
4874 | } | |
4875 | ||
4876 | return NULL; | |
4877 | } | |
4878 | ||
4879 | void * | |
4880 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
4881 | { | |
4882 | void *ptr; | |
4883 | ||
4884 | mutex_enter(&zfsdev_state_lock); | |
4885 | ptr = zfsdev_get_state_impl(minor, which); | |
4886 | mutex_exit(&zfsdev_state_lock); | |
4887 | ||
4888 | return ptr; | |
4889 | } | |
4890 | ||
4891 | minor_t | |
4892 | zfsdev_getminor(struct file *filp) | |
4893 | { | |
4894 | ASSERT(filp != NULL); | |
4895 | ASSERT(filp->private_data != NULL); | |
4896 | ||
4897 | return (((zfsdev_state_t *)filp->private_data)->zs_minor); | |
4898 | } | |
4899 | ||
572e2857 | 4900 | /* |
325f0235 BB |
4901 | * Find a free minor number. The zfsdev_state_list is expected to |
4902 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
4903 | */ |
4904 | minor_t | |
4905 | zfsdev_minor_alloc(void) | |
4906 | { | |
325f0235 | 4907 | static minor_t last_minor = 0; |
572e2857 BB |
4908 | minor_t m; |
4909 | ||
4910 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4911 | ||
4912 | for (m = last_minor + 1; m != last_minor; m++) { | |
4913 | if (m > ZFSDEV_MAX_MINOR) | |
4914 | m = 1; | |
325f0235 | 4915 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
4916 | last_minor = m; |
4917 | return (m); | |
4918 | } | |
4919 | } | |
4920 | ||
4921 | return (0); | |
4922 | } | |
4923 | ||
4924 | static int | |
325f0235 | 4925 | zfsdev_state_init(struct file *filp) |
572e2857 | 4926 | { |
325f0235 | 4927 | zfsdev_state_t *zs; |
572e2857 | 4928 | minor_t minor; |
572e2857 BB |
4929 | |
4930 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 4931 | |
325f0235 BB |
4932 | minor = zfsdev_minor_alloc(); |
4933 | if (minor == 0) | |
4934 | return (ENXIO); | |
4935 | ||
4936 | zs = kmem_zalloc( sizeof(zfsdev_state_t), KM_SLEEP); | |
4937 | if (zs == NULL) | |
4938 | return (ENOMEM); | |
572e2857 | 4939 | |
325f0235 BB |
4940 | zs->zs_file = filp; |
4941 | zs->zs_minor = minor; | |
4942 | filp->private_data = zs; | |
572e2857 | 4943 | |
325f0235 BB |
4944 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
4945 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 4946 | |
325f0235 | 4947 | list_insert_tail(&zfsdev_state_list, zs); |
572e2857 BB |
4948 | |
4949 | return (0); | |
4950 | } | |
4951 | ||
325f0235 BB |
4952 | static int |
4953 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 4954 | { |
325f0235 | 4955 | zfsdev_state_t *zs; |
572e2857 | 4956 | |
325f0235 BB |
4957 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
4958 | ASSERT(filp->private_data != NULL); | |
572e2857 | 4959 | |
325f0235 BB |
4960 | zs = filp->private_data; |
4961 | zfs_onexit_destroy(zs->zs_onexit); | |
4962 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 4963 | |
325f0235 BB |
4964 | list_remove(&zfsdev_state_list, zs); |
4965 | kmem_free(zs, sizeof(zfsdev_state_t)); | |
572e2857 | 4966 | |
325f0235 | 4967 | return 0; |
572e2857 BB |
4968 | } |
4969 | ||
4970 | static int | |
325f0235 | 4971 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 4972 | { |
325f0235 | 4973 | int error; |
572e2857 | 4974 | |
325f0235 BB |
4975 | mutex_enter(&zfsdev_state_lock); |
4976 | error = zfsdev_state_init(filp); | |
4977 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 4978 | |
325f0235 | 4979 | return (-error); |
572e2857 BB |
4980 | } |
4981 | ||
4982 | static int | |
325f0235 | 4983 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 4984 | { |
325f0235 | 4985 | int error; |
572e2857 BB |
4986 | |
4987 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 4988 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
4989 | mutex_exit(&zfsdev_state_lock); |
4990 | ||
325f0235 | 4991 | return (-error); |
572e2857 BB |
4992 | } |
4993 | ||
325f0235 BB |
4994 | static long |
4995 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
4996 | { |
4997 | zfs_cmd_t *zc; | |
4998 | uint_t vec; | |
325f0235 | 4999 | int error, rc, flag = 0; |
34dc7c2f BB |
5000 | |
5001 | vec = cmd - ZFS_IOC; | |
34dc7c2f | 5002 | if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) |
325f0235 | 5003 | return (-EINVAL); |
34dc7c2f | 5004 | |
00b46022 | 5005 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 5006 | |
9babb374 | 5007 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
428870ff BB |
5008 | if (error != 0) |
5009 | error = EFAULT; | |
34dc7c2f | 5010 | |
428870ff | 5011 | if ((error == 0) && !(flag & FKIOCTL)) |
f01b360e | 5012 | error = zfs_ioc_vec[vec].zvec_secpolicy(zc, CRED()); |
34dc7c2f BB |
5013 | |
5014 | /* | |
5015 | * Ensure that all pool/dataset names are valid before we pass down to | |
5016 | * the lower layers. | |
5017 | */ | |
5018 | if (error == 0) { | |
5019 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; | |
9babb374 | 5020 | zc->zc_iflags = flag & FKIOCTL; |
34dc7c2f BB |
5021 | switch (zfs_ioc_vec[vec].zvec_namecheck) { |
5022 | case POOL_NAME: | |
5023 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5024 | error = EINVAL; | |
572e2857 BB |
5025 | error = pool_status_check(zc->zc_name, |
5026 | zfs_ioc_vec[vec].zvec_namecheck, | |
5027 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
5028 | break; |
5029 | ||
5030 | case DATASET_NAME: | |
5031 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5032 | error = EINVAL; | |
572e2857 BB |
5033 | error = pool_status_check(zc->zc_name, |
5034 | zfs_ioc_vec[vec].zvec_namecheck, | |
5035 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
5036 | break; |
5037 | ||
5038 | case NO_NAME: | |
5039 | break; | |
5040 | } | |
5041 | } | |
5042 | ||
5043 | if (error == 0) | |
5044 | error = zfs_ioc_vec[vec].zvec_func(zc); | |
5045 | ||
9babb374 | 5046 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
34dc7c2f | 5047 | if (error == 0) { |
428870ff BB |
5048 | if (rc != 0) |
5049 | error = EFAULT; | |
9babb374 | 5050 | if (zfs_ioc_vec[vec].zvec_his_log) |
34dc7c2f BB |
5051 | zfs_log_history(zc); |
5052 | } | |
5053 | ||
5054 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5055 | return (-error); |
34dc7c2f BB |
5056 | } |
5057 | ||
325f0235 BB |
5058 | #ifdef CONFIG_COMPAT |
5059 | static long | |
5060 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5061 | { |
325f0235 BB |
5062 | return zfsdev_ioctl(filp, cmd, arg); |
5063 | } | |
5064 | #else | |
f5e79474 | 5065 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5066 | #endif |
34dc7c2f | 5067 | |
325f0235 BB |
5068 | static const struct file_operations zfsdev_fops = { |
5069 | .open = zfsdev_open, | |
5070 | .release = zfsdev_release, | |
5071 | .unlocked_ioctl = zfsdev_ioctl, | |
5072 | .compat_ioctl = zfsdev_compat_ioctl, | |
5073 | .owner = THIS_MODULE, | |
5074 | }; | |
34dc7c2f | 5075 | |
325f0235 BB |
5076 | static struct miscdevice zfs_misc = { |
5077 | .minor = MISC_DYNAMIC_MINOR, | |
5078 | .name = ZFS_DRIVER, | |
5079 | .fops = &zfsdev_fops, | |
5080 | }; | |
34dc7c2f BB |
5081 | |
5082 | static int | |
325f0235 | 5083 | zfs_attach(void) |
34dc7c2f | 5084 | { |
325f0235 | 5085 | int error; |
34dc7c2f | 5086 | |
325f0235 BB |
5087 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
5088 | list_create(&zfsdev_state_list, sizeof (zfsdev_state_t), | |
5089 | offsetof(zfsdev_state_t, zs_next)); | |
34dc7c2f | 5090 | |
325f0235 BB |
5091 | error = misc_register(&zfs_misc); |
5092 | if (error) { | |
5093 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); | |
5094 | return (error); | |
5095 | } | |
34dc7c2f | 5096 | |
325f0235 | 5097 | return (0); |
34dc7c2f BB |
5098 | } |
5099 | ||
325f0235 BB |
5100 | static void |
5101 | zfs_detach(void) | |
34dc7c2f | 5102 | { |
325f0235 | 5103 | int error; |
34dc7c2f | 5104 | |
325f0235 BB |
5105 | error = misc_deregister(&zfs_misc); |
5106 | if (error) | |
5107 | printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error); | |
34dc7c2f | 5108 | |
325f0235 BB |
5109 | mutex_destroy(&zfsdev_state_lock); |
5110 | list_destroy(&zfsdev_state_list); | |
34dc7c2f BB |
5111 | } |
5112 | ||
34dc7c2f BB |
5113 | uint_t zfs_fsyncer_key; |
5114 | extern uint_t rrw_tsd_key; | |
325f0235 BB |
5115 | |
5116 | #ifdef DEBUG | |
5117 | #define ZFS_DEBUG_STR " (DEBUG mode)" | |
5118 | #else | |
5119 | #define ZFS_DEBUG_STR "" | |
5120 | #endif | |
34dc7c2f BB |
5121 | |
5122 | int | |
5123 | _init(void) | |
5124 | { | |
5125 | int error; | |
5126 | ||
5127 | spa_init(FREAD | FWRITE); | |
5128 | zfs_init(); | |
34dc7c2f | 5129 | |
325f0235 BB |
5130 | if ((error = zvol_init()) != 0) |
5131 | goto out1; | |
5132 | ||
5133 | if ((error = zfs_attach()) != 0) | |
5134 | goto out2; | |
34dc7c2f BB |
5135 | |
5136 | tsd_create(&zfs_fsyncer_key, NULL); | |
5137 | tsd_create(&rrw_tsd_key, NULL); | |
5138 | ||
4b5d425f | 5139 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
a23cc0a4 | 5140 | "ZFS pool version %s, ZFS filesystem version %s\n", |
4b5d425f | 5141 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, |
a23cc0a4 | 5142 | SPA_VERSION_STRING, ZPL_VERSION_STRING); |
34dc7c2f BB |
5143 | |
5144 | return (0); | |
325f0235 BB |
5145 | |
5146 | out2: | |
5147 | (void) zvol_fini(); | |
5148 | out1: | |
5149 | zfs_fini(); | |
5150 | spa_fini(); | |
4b5d425f BB |
5151 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
5152 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, | |
5153 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
5154 | |
5155 | return (error); | |
34dc7c2f BB |
5156 | } |
5157 | ||
5158 | int | |
5159 | _fini(void) | |
5160 | { | |
325f0235 | 5161 | zfs_detach(); |
34dc7c2f BB |
5162 | zvol_fini(); |
5163 | zfs_fini(); | |
5164 | spa_fini(); | |
46e18b3f | 5165 | |
325f0235 | 5166 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 5167 | tsd_destroy(&rrw_tsd_key); |
34dc7c2f | 5168 | |
4b5d425f BB |
5169 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
5170 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); | |
34dc7c2f | 5171 | |
325f0235 | 5172 | return (0); |
34dc7c2f | 5173 | } |
325f0235 BB |
5174 | |
5175 | #ifdef HAVE_SPL | |
5176 | spl_module_init(_init); | |
5177 | spl_module_exit(_fini); | |
5178 | ||
5179 | MODULE_DESCRIPTION("ZFS"); | |
5180 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
5181 | MODULE_LICENSE(ZFS_META_LICENSE); | |
5182 | #endif /* HAVE_SPL */ |