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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 | 26 | * Copyright 2011 Nexenta Systems, Inc. All rights reserved. |
1bd201e7 | 27 | * Copyright (c) 2012 by Delphix. All rights reserved. |
37abac6d | 28 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
3541dc6d | 29 | */ |
34dc7c2f | 30 | |
34dc7c2f BB |
31 | #include <sys/types.h> |
32 | #include <sys/param.h> | |
33 | #include <sys/errno.h> | |
34 | #include <sys/uio.h> | |
35 | #include <sys/buf.h> | |
36 | #include <sys/modctl.h> | |
37 | #include <sys/open.h> | |
38 | #include <sys/file.h> | |
39 | #include <sys/kmem.h> | |
40 | #include <sys/conf.h> | |
41 | #include <sys/cmn_err.h> | |
42 | #include <sys/stat.h> | |
43 | #include <sys/zfs_ioctl.h> | |
428870ff | 44 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
45 | #include <sys/zfs_znode.h> |
46 | #include <sys/zap.h> | |
47 | #include <sys/spa.h> | |
48 | #include <sys/spa_impl.h> | |
49 | #include <sys/vdev.h> | |
428870ff | 50 | #include <sys/priv_impl.h> |
34dc7c2f BB |
51 | #include <sys/dmu.h> |
52 | #include <sys/dsl_dir.h> | |
53 | #include <sys/dsl_dataset.h> | |
54 | #include <sys/dsl_prop.h> | |
55 | #include <sys/dsl_deleg.h> | |
56 | #include <sys/dmu_objset.h> | |
37abac6d | 57 | #include <sys/dmu_impl.h> |
34dc7c2f BB |
58 | #include <sys/ddi.h> |
59 | #include <sys/sunddi.h> | |
60 | #include <sys/sunldi.h> | |
61 | #include <sys/policy.h> | |
62 | #include <sys/zone.h> | |
63 | #include <sys/nvpair.h> | |
64 | #include <sys/pathname.h> | |
65 | #include <sys/mount.h> | |
66 | #include <sys/sdt.h> | |
67 | #include <sys/fs/zfs.h> | |
ebe7e575 | 68 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 69 | #include <sys/zfs_dir.h> |
572e2857 | 70 | #include <sys/zfs_onexit.h> |
34dc7c2f | 71 | #include <sys/zvol.h> |
428870ff | 72 | #include <sys/dsl_scan.h> |
34dc7c2f BB |
73 | #include <sharefs/share.h> |
74 | #include <sys/dmu_objset.h> | |
325f0235 BB |
75 | #include <sys/fm/util.h> |
76 | ||
77 | #include <linux/miscdevice.h> | |
34dc7c2f BB |
78 | |
79 | #include "zfs_namecheck.h" | |
80 | #include "zfs_prop.h" | |
81 | #include "zfs_deleg.h" | |
428870ff | 82 | #include "zfs_comutil.h" |
34dc7c2f | 83 | |
325f0235 BB |
84 | kmutex_t zfsdev_state_lock; |
85 | list_t zfsdev_state_list; | |
34dc7c2f BB |
86 | |
87 | extern void zfs_init(void); | |
88 | extern void zfs_fini(void); | |
89 | ||
34dc7c2f BB |
90 | typedef int zfs_ioc_func_t(zfs_cmd_t *); |
91 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *); | |
92 | ||
9babb374 BB |
93 | typedef enum { |
94 | NO_NAME, | |
95 | POOL_NAME, | |
96 | DATASET_NAME | |
97 | } zfs_ioc_namecheck_t; | |
98 | ||
572e2857 BB |
99 | typedef enum { |
100 | POOL_CHECK_NONE = 1 << 0, | |
101 | POOL_CHECK_SUSPENDED = 1 << 1, | |
102 | POOL_CHECK_READONLY = 1 << 2 | |
103 | } zfs_ioc_poolcheck_t; | |
104 | ||
34dc7c2f BB |
105 | typedef struct zfs_ioc_vec { |
106 | zfs_ioc_func_t *zvec_func; | |
107 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 108 | zfs_ioc_namecheck_t zvec_namecheck; |
34dc7c2f | 109 | boolean_t zvec_his_log; |
572e2857 | 110 | zfs_ioc_poolcheck_t zvec_pool_check; |
34dc7c2f BB |
111 | } zfs_ioc_vec_t; |
112 | ||
9babb374 BB |
113 | /* This array is indexed by zfs_userquota_prop_t */ |
114 | static const char *userquota_perms[] = { | |
115 | ZFS_DELEG_PERM_USERUSED, | |
116 | ZFS_DELEG_PERM_USERQUOTA, | |
117 | ZFS_DELEG_PERM_GROUPUSED, | |
118 | ZFS_DELEG_PERM_GROUPQUOTA, | |
119 | }; | |
120 | ||
121 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
122 | static int zfs_check_settable(const char *name, nvpair_t *property, |
123 | cred_t *cr); | |
124 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
125 | nvlist_t **errors); | |
b128c09f BB |
126 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
127 | boolean_t *); | |
428870ff | 128 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t **); |
b128c09f | 129 | |
34dc7c2f BB |
130 | static void |
131 | history_str_free(char *buf) | |
132 | { | |
133 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
134 | } | |
135 | ||
136 | static char * | |
137 | history_str_get(zfs_cmd_t *zc) | |
138 | { | |
139 | char *buf; | |
140 | ||
b8864a23 | 141 | if (zc->zc_history == 0) |
34dc7c2f BB |
142 | return (NULL); |
143 | ||
00b46022 | 144 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
145 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
146 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
147 | history_str_free(buf); | |
148 | return (NULL); | |
149 | } | |
150 | ||
151 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
152 | ||
153 | return (buf); | |
154 | } | |
155 | ||
156 | /* | |
b128c09f BB |
157 | * Check to see if the named dataset is currently defined as bootable |
158 | */ | |
159 | static boolean_t | |
160 | zfs_is_bootfs(const char *name) | |
161 | { | |
428870ff | 162 | objset_t *os; |
b128c09f | 163 | |
428870ff BB |
164 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
165 | boolean_t ret; | |
166 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
167 | dmu_objset_rele(os, FTAG); | |
168 | return (ret); | |
b128c09f | 169 | } |
428870ff | 170 | return (B_FALSE); |
b128c09f BB |
171 | } |
172 | ||
173 | /* | |
174 | * zfs_earlier_version | |
34dc7c2f BB |
175 | * |
176 | * Return non-zero if the spa version is less than requested version. | |
177 | */ | |
178 | static int | |
b128c09f | 179 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 180 | { |
34dc7c2f BB |
181 | spa_t *spa; |
182 | ||
183 | if (spa_open(name, &spa, FTAG) == 0) { | |
184 | if (spa_version(spa) < version) { | |
185 | spa_close(spa, FTAG); | |
186 | return (1); | |
187 | } | |
188 | spa_close(spa, FTAG); | |
189 | } | |
190 | return (0); | |
191 | } | |
192 | ||
193 | /* | |
b128c09f | 194 | * zpl_earlier_version |
34dc7c2f | 195 | * |
b128c09f | 196 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 197 | */ |
b128c09f BB |
198 | static boolean_t |
199 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
200 | { |
201 | objset_t *os; | |
b128c09f | 202 | boolean_t rc = B_TRUE; |
34dc7c2f | 203 | |
428870ff | 204 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 205 | uint64_t zplversion; |
34dc7c2f | 206 | |
428870ff BB |
207 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
208 | dmu_objset_rele(os, FTAG); | |
209 | return (B_TRUE); | |
210 | } | |
211 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
212 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
213 | rc = zplversion < version; | |
428870ff | 214 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
215 | } |
216 | return (rc); | |
217 | } | |
218 | ||
219 | static void | |
220 | zfs_log_history(zfs_cmd_t *zc) | |
221 | { | |
222 | spa_t *spa; | |
223 | char *buf; | |
224 | ||
225 | if ((buf = history_str_get(zc)) == NULL) | |
226 | return; | |
227 | ||
228 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
229 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
230 | (void) spa_history_log(spa, buf, LOG_CMD_NORMAL); | |
231 | spa_close(spa, FTAG); | |
232 | } | |
233 | history_str_free(buf); | |
234 | } | |
235 | ||
236 | /* | |
237 | * Policy for top-level read operations (list pools). Requires no privileges, | |
238 | * and can be used in the local zone, as there is no associated dataset. | |
239 | */ | |
240 | /* ARGSUSED */ | |
241 | static int | |
242 | zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr) | |
243 | { | |
244 | return (0); | |
245 | } | |
246 | ||
247 | /* | |
248 | * Policy for dataset read operations (list children, get statistics). Requires | |
249 | * no privileges, but must be visible in the local zone. | |
250 | */ | |
251 | /* ARGSUSED */ | |
252 | static int | |
253 | zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr) | |
254 | { | |
255 | if (INGLOBALZONE(curproc) || | |
256 | zone_dataset_visible(zc->zc_name, NULL)) | |
257 | return (0); | |
258 | ||
259 | return (ENOENT); | |
260 | } | |
261 | ||
262 | static int | |
572e2857 | 263 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 264 | { |
34dc7c2f BB |
265 | int writable = 1; |
266 | ||
267 | /* | |
268 | * The dataset must be visible by this zone -- check this first | |
269 | * so they don't see EPERM on something they shouldn't know about. | |
270 | */ | |
271 | if (!INGLOBALZONE(curproc) && | |
272 | !zone_dataset_visible(dataset, &writable)) | |
273 | return (ENOENT); | |
274 | ||
34dc7c2f BB |
275 | if (INGLOBALZONE(curproc)) { |
276 | /* | |
277 | * If the fs is zoned, only root can access it from the | |
278 | * global zone. | |
279 | */ | |
280 | if (secpolicy_zfs(cr) && zoned) | |
281 | return (EPERM); | |
282 | } else { | |
283 | /* | |
284 | * If we are in a local zone, the 'zoned' property must be set. | |
285 | */ | |
286 | if (!zoned) | |
287 | return (EPERM); | |
288 | ||
289 | /* must be writable by this zone */ | |
290 | if (!writable) | |
291 | return (EPERM); | |
292 | } | |
293 | return (0); | |
294 | } | |
295 | ||
572e2857 BB |
296 | static int |
297 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
298 | { | |
299 | uint64_t zoned; | |
300 | ||
301 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
302 | return (ENOENT); | |
303 | ||
304 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
305 | } | |
306 | ||
307 | static int | |
308 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
309 | { | |
310 | uint64_t zoned; | |
311 | ||
312 | rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER); | |
313 | if (dsl_prop_get_ds(ds, "zoned", 8, 1, &zoned, NULL)) { | |
314 | rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); | |
315 | return (ENOENT); | |
316 | } | |
317 | rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); | |
318 | ||
319 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
320 | } | |
321 | ||
330d06f9 MA |
322 | /* |
323 | * If name ends in a '@', then require recursive permissions. | |
324 | */ | |
34dc7c2f BB |
325 | int |
326 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) | |
327 | { | |
328 | int error; | |
330d06f9 MA |
329 | boolean_t descendent = B_FALSE; |
330 | dsl_dataset_t *ds; | |
331 | char *at; | |
332 | ||
333 | at = strchr(name, '@'); | |
334 | if (at != NULL && at[1] == '\0') { | |
335 | *at = '\0'; | |
336 | descendent = B_TRUE; | |
337 | } | |
338 | ||
339 | error = dsl_dataset_hold(name, FTAG, &ds); | |
340 | if (at != NULL) | |
341 | *at = '@'; | |
342 | if (error != 0) | |
343 | return (error); | |
34dc7c2f | 344 | |
330d06f9 | 345 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
346 | if (error == 0) { |
347 | error = secpolicy_zfs(cr); | |
348 | if (error) | |
330d06f9 | 349 | error = dsl_deleg_access_impl(ds, descendent, perm, cr); |
34dc7c2f | 350 | } |
330d06f9 MA |
351 | |
352 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
353 | return (error); |
354 | } | |
355 | ||
572e2857 BB |
356 | int |
357 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, | |
358 | const char *perm, cred_t *cr) | |
359 | { | |
360 | int error; | |
361 | ||
362 | error = zfs_dozonecheck_ds(name, ds, cr); | |
363 | if (error == 0) { | |
364 | error = secpolicy_zfs(cr); | |
365 | if (error) | |
330d06f9 | 366 | error = dsl_deleg_access_impl(ds, B_FALSE, perm, cr); |
572e2857 BB |
367 | } |
368 | return (error); | |
369 | } | |
370 | ||
428870ff BB |
371 | /* |
372 | * Policy for setting the security label property. | |
373 | * | |
374 | * Returns 0 for success, non-zero for access and other errors. | |
375 | */ | |
34dc7c2f | 376 | static int |
428870ff | 377 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 378 | { |
d2c15e84 | 379 | #ifdef HAVE_MLSLABEL |
428870ff BB |
380 | char ds_hexsl[MAXNAMELEN]; |
381 | bslabel_t ds_sl, new_sl; | |
382 | boolean_t new_default = FALSE; | |
383 | uint64_t zoned; | |
384 | int needed_priv = -1; | |
385 | int error; | |
386 | ||
387 | /* First get the existing dataset label. */ | |
388 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
389 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
390 | if (error) | |
391 | return (EPERM); | |
392 | ||
393 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
394 | new_default = TRUE; | |
395 | ||
396 | /* The label must be translatable */ | |
397 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
398 | return (EINVAL); | |
399 | ||
400 | /* | |
401 | * In a non-global zone, disallow attempts to set a label that | |
402 | * doesn't match that of the zone; otherwise no other checks | |
403 | * are needed. | |
404 | */ | |
405 | if (!INGLOBALZONE(curproc)) { | |
406 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
407 | return (EPERM); | |
408 | return (0); | |
409 | } | |
410 | ||
411 | /* | |
412 | * For global-zone datasets (i.e., those whose zoned property is | |
413 | * "off", verify that the specified new label is valid for the | |
414 | * global zone. | |
415 | */ | |
416 | if (dsl_prop_get_integer(name, | |
417 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
418 | return (EPERM); | |
419 | if (!zoned) { | |
420 | if (zfs_check_global_label(name, strval) != 0) | |
421 | return (EPERM); | |
422 | } | |
423 | ||
424 | /* | |
425 | * If the existing dataset label is nondefault, check if the | |
426 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 427 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
428 | * mounted (or isn't a dataset, doesn't exist, ...). |
429 | */ | |
430 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
431 | objset_t *os; | |
432 | static char *setsl_tag = "setsl_tag"; | |
433 | ||
434 | /* | |
435 | * Try to own the dataset; abort if there is any error, | |
436 | * (e.g., already mounted, in use, or other error). | |
437 | */ | |
438 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
439 | setsl_tag, &os); | |
440 | if (error) | |
441 | return (EPERM); | |
442 | ||
443 | dmu_objset_disown(os, setsl_tag); | |
444 | ||
445 | if (new_default) { | |
446 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
447 | goto out_check; | |
448 | } | |
449 | ||
450 | if (hexstr_to_label(strval, &new_sl) != 0) | |
451 | return (EPERM); | |
452 | ||
453 | if (blstrictdom(&ds_sl, &new_sl)) | |
454 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
455 | else if (blstrictdom(&new_sl, &ds_sl)) | |
456 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
457 | } else { | |
458 | /* dataset currently has a default label */ | |
459 | if (!new_default) | |
460 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
461 | } | |
462 | ||
463 | out_check: | |
464 | if (needed_priv != -1) | |
465 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
466 | return (0); | |
d2c15e84 BB |
467 | #else |
468 | return ENOTSUP; | |
469 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
470 | } |
471 | ||
472 | static int | |
473 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
474 | cred_t *cr) | |
475 | { | |
476 | char *strval; | |
477 | ||
34dc7c2f BB |
478 | /* |
479 | * Check permissions for special properties. | |
480 | */ | |
481 | switch (prop) { | |
e75c13c3 BB |
482 | default: |
483 | break; | |
34dc7c2f BB |
484 | case ZFS_PROP_ZONED: |
485 | /* | |
486 | * Disallow setting of 'zoned' from within a local zone. | |
487 | */ | |
488 | if (!INGLOBALZONE(curproc)) | |
489 | return (EPERM); | |
490 | break; | |
491 | ||
492 | case ZFS_PROP_QUOTA: | |
493 | if (!INGLOBALZONE(curproc)) { | |
494 | uint64_t zoned; | |
495 | char setpoint[MAXNAMELEN]; | |
496 | /* | |
497 | * Unprivileged users are allowed to modify the | |
498 | * quota on things *under* (ie. contained by) | |
499 | * the thing they own. | |
500 | */ | |
428870ff | 501 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f BB |
502 | setpoint)) |
503 | return (EPERM); | |
428870ff | 504 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
34dc7c2f BB |
505 | return (EPERM); |
506 | } | |
507 | break; | |
428870ff BB |
508 | |
509 | case ZFS_PROP_MLSLABEL: | |
510 | if (!is_system_labeled()) | |
511 | return (EPERM); | |
512 | ||
513 | if (nvpair_value_string(propval, &strval) == 0) { | |
514 | int err; | |
515 | ||
516 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
517 | if (err != 0) | |
518 | return (err); | |
519 | } | |
520 | break; | |
34dc7c2f BB |
521 | } |
522 | ||
428870ff | 523 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
524 | } |
525 | ||
526 | int | |
527 | zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr) | |
528 | { | |
529 | int error; | |
530 | ||
531 | error = zfs_dozonecheck(zc->zc_name, cr); | |
532 | if (error) | |
533 | return (error); | |
534 | ||
535 | /* | |
536 | * permission to set permissions will be evaluated later in | |
537 | * dsl_deleg_can_allow() | |
538 | */ | |
539 | return (0); | |
540 | } | |
541 | ||
542 | int | |
543 | zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr) | |
544 | { | |
428870ff BB |
545 | return (zfs_secpolicy_write_perms(zc->zc_name, |
546 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
547 | } |
548 | ||
549 | int | |
550 | zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr) | |
551 | { | |
572e2857 BB |
552 | spa_t *spa; |
553 | dsl_pool_t *dp; | |
554 | dsl_dataset_t *ds; | |
555 | char *cp; | |
556 | int error; | |
557 | ||
558 | /* | |
559 | * Generate the current snapshot name from the given objsetid, then | |
560 | * use that name for the secpolicy/zone checks. | |
561 | */ | |
562 | cp = strchr(zc->zc_name, '@'); | |
563 | if (cp == NULL) | |
564 | return (EINVAL); | |
565 | error = spa_open(zc->zc_name, &spa, FTAG); | |
566 | if (error) | |
567 | return (error); | |
568 | ||
569 | dp = spa_get_dsl(spa); | |
570 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
571 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
572 | rw_exit(&dp->dp_config_rwlock); | |
573 | spa_close(spa, FTAG); | |
574 | if (error) | |
575 | return (error); | |
576 | ||
577 | dsl_dataset_name(ds, zc->zc_name); | |
578 | ||
579 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
580 | ZFS_DELEG_PERM_SEND, cr); | |
581 | dsl_dataset_rele(ds, FTAG); | |
582 | ||
583 | return (error); | |
34dc7c2f BB |
584 | } |
585 | ||
3c9609b3 | 586 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
587 | static int |
588 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr) | |
589 | { | |
590 | vnode_t *vp; | |
591 | int error; | |
592 | ||
593 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
594 | NO_FOLLOW, NULL, &vp)) != 0) | |
595 | return (error); | |
596 | ||
597 | /* Now make sure mntpnt and dataset are ZFS */ | |
598 | ||
599 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
600 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
601 | zc->zc_name) != 0)) { | |
602 | VN_RELE(vp); | |
603 | return (EPERM); | |
604 | } | |
605 | ||
606 | VN_RELE(vp); | |
607 | return (dsl_deleg_access(zc->zc_name, | |
608 | ZFS_DELEG_PERM_SHARE, cr)); | |
609 | } | |
3c9609b3 | 610 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 611 | |
34dc7c2f BB |
612 | int |
613 | zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr) | |
614 | { | |
3c9609b3 | 615 | #ifdef HAVE_SMB_SHARE |
34dc7c2f BB |
616 | if (!INGLOBALZONE(curproc)) |
617 | return (EPERM); | |
618 | ||
619 | if (secpolicy_nfs(cr) == 0) { | |
620 | return (0); | |
621 | } else { | |
9babb374 BB |
622 | return (zfs_secpolicy_deleg_share(zc, cr)); |
623 | } | |
325f0235 BB |
624 | #else |
625 | return (ENOTSUP); | |
3c9609b3 | 626 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 627 | } |
34dc7c2f | 628 | |
9babb374 BB |
629 | int |
630 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr) | |
631 | { | |
3c9609b3 | 632 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
633 | if (!INGLOBALZONE(curproc)) |
634 | return (EPERM); | |
34dc7c2f | 635 | |
9babb374 BB |
636 | if (secpolicy_smb(cr) == 0) { |
637 | return (0); | |
638 | } else { | |
639 | return (zfs_secpolicy_deleg_share(zc, cr)); | |
34dc7c2f | 640 | } |
325f0235 BB |
641 | #else |
642 | return (ENOTSUP); | |
3c9609b3 | 643 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
644 | } |
645 | ||
646 | static int | |
647 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
648 | { | |
649 | char *cp; | |
650 | ||
651 | /* | |
652 | * Remove the @bla or /bla from the end of the name to get the parent. | |
653 | */ | |
654 | (void) strncpy(parent, datasetname, parentsize); | |
655 | cp = strrchr(parent, '@'); | |
656 | if (cp != NULL) { | |
657 | cp[0] = '\0'; | |
658 | } else { | |
659 | cp = strrchr(parent, '/'); | |
660 | if (cp == NULL) | |
661 | return (ENOENT); | |
662 | cp[0] = '\0'; | |
663 | } | |
664 | ||
665 | return (0); | |
666 | } | |
667 | ||
668 | int | |
669 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
670 | { | |
671 | int error; | |
672 | ||
673 | if ((error = zfs_secpolicy_write_perms(name, | |
674 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
675 | return (error); | |
676 | ||
677 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
678 | } | |
679 | ||
680 | static int | |
681 | zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr) | |
682 | { | |
683 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
684 | } | |
685 | ||
686 | /* | |
428870ff BB |
687 | * Destroying snapshots with delegated permissions requires |
688 | * descendent mount and destroy permissions. | |
34dc7c2f | 689 | */ |
34dc7c2f | 690 | static int |
330d06f9 | 691 | zfs_secpolicy_destroy_recursive(zfs_cmd_t *zc, cred_t *cr) |
34dc7c2f | 692 | { |
428870ff BB |
693 | int error; |
694 | char *dsname; | |
695 | ||
330d06f9 | 696 | dsname = kmem_asprintf("%s@", zc->zc_name); |
428870ff BB |
697 | |
698 | error = zfs_secpolicy_destroy_perms(dsname, cr); | |
ca525220 MM |
699 | if (error == ENOENT) |
700 | error = zfs_secpolicy_destroy_perms(zc->zc_name, cr); | |
428870ff BB |
701 | |
702 | strfree(dsname); | |
703 | return (error); | |
34dc7c2f BB |
704 | } |
705 | ||
706 | int | |
707 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
708 | { | |
428870ff | 709 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
710 | int error; |
711 | ||
712 | if ((error = zfs_secpolicy_write_perms(from, | |
713 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
714 | return (error); | |
715 | ||
716 | if ((error = zfs_secpolicy_write_perms(from, | |
717 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
718 | return (error); | |
719 | ||
720 | if ((error = zfs_get_parent(to, parentname, | |
721 | sizeof (parentname))) != 0) | |
722 | return (error); | |
723 | ||
724 | if ((error = zfs_secpolicy_write_perms(parentname, | |
725 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
726 | return (error); | |
727 | ||
728 | if ((error = zfs_secpolicy_write_perms(parentname, | |
729 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
730 | return (error); | |
731 | ||
732 | return (error); | |
733 | } | |
734 | ||
735 | static int | |
736 | zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr) | |
737 | { | |
738 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
739 | } | |
740 | ||
741 | static int | |
742 | zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) | |
743 | { | |
428870ff | 744 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
745 | objset_t *clone; |
746 | int error; | |
747 | ||
748 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
749 | ZFS_DELEG_PERM_PROMOTE, cr); | |
750 | if (error) | |
751 | return (error); | |
752 | ||
428870ff | 753 | error = dmu_objset_hold(zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
754 | |
755 | if (error == 0) { | |
756 | dsl_dataset_t *pclone = NULL; | |
757 | dsl_dir_t *dd; | |
428870ff | 758 | dd = clone->os_dsl_dataset->ds_dir; |
34dc7c2f BB |
759 | |
760 | rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); | |
b128c09f BB |
761 | error = dsl_dataset_hold_obj(dd->dd_pool, |
762 | dd->dd_phys->dd_origin_obj, FTAG, &pclone); | |
34dc7c2f BB |
763 | rw_exit(&dd->dd_pool->dp_config_rwlock); |
764 | if (error) { | |
428870ff | 765 | dmu_objset_rele(clone, FTAG); |
34dc7c2f BB |
766 | return (error); |
767 | } | |
768 | ||
769 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
770 | ZFS_DELEG_PERM_MOUNT, cr); | |
771 | ||
772 | dsl_dataset_name(pclone, parentname); | |
428870ff | 773 | dmu_objset_rele(clone, FTAG); |
b128c09f | 774 | dsl_dataset_rele(pclone, FTAG); |
34dc7c2f BB |
775 | if (error == 0) |
776 | error = zfs_secpolicy_write_perms(parentname, | |
777 | ZFS_DELEG_PERM_PROMOTE, cr); | |
778 | } | |
779 | return (error); | |
780 | } | |
781 | ||
782 | static int | |
783 | zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr) | |
784 | { | |
785 | int error; | |
786 | ||
787 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
788 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
789 | return (error); | |
790 | ||
791 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
792 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
793 | return (error); | |
794 | ||
795 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
796 | ZFS_DELEG_PERM_CREATE, cr)); | |
797 | } | |
798 | ||
799 | int | |
800 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
801 | { | |
428870ff BB |
802 | return (zfs_secpolicy_write_perms(name, |
803 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
804 | } |
805 | ||
806 | static int | |
807 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
808 | { | |
809 | ||
810 | return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr)); | |
811 | } | |
812 | ||
813 | static int | |
814 | zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr) | |
815 | { | |
428870ff BB |
816 | char parentname[MAXNAMELEN]; |
817 | int error; | |
34dc7c2f BB |
818 | |
819 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
820 | sizeof (parentname))) != 0) | |
821 | return (error); | |
822 | ||
823 | if (zc->zc_value[0] != '\0') { | |
824 | if ((error = zfs_secpolicy_write_perms(zc->zc_value, | |
825 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
826 | return (error); | |
827 | } | |
828 | ||
829 | if ((error = zfs_secpolicy_write_perms(parentname, | |
830 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
831 | return (error); | |
832 | ||
833 | error = zfs_secpolicy_write_perms(parentname, | |
834 | ZFS_DELEG_PERM_MOUNT, cr); | |
835 | ||
836 | return (error); | |
837 | } | |
838 | ||
34dc7c2f BB |
839 | /* |
840 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
841 | * SYS_CONFIG privilege, which is not available in a local zone. | |
842 | */ | |
843 | /* ARGSUSED */ | |
844 | static int | |
845 | zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr) | |
846 | { | |
847 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
848 | return (EPERM); | |
849 | ||
850 | return (0); | |
851 | } | |
852 | ||
572e2857 BB |
853 | /* |
854 | * Policy for object to name lookups. | |
855 | */ | |
856 | /* ARGSUSED */ | |
857 | static int | |
858 | zfs_secpolicy_diff(zfs_cmd_t *zc, cred_t *cr) | |
859 | { | |
860 | int error; | |
861 | ||
862 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
863 | return (0); | |
864 | ||
865 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
866 | return (error); | |
867 | } | |
868 | ||
34dc7c2f BB |
869 | /* |
870 | * Policy for fault injection. Requires all privileges. | |
871 | */ | |
872 | /* ARGSUSED */ | |
873 | static int | |
874 | zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr) | |
875 | { | |
876 | return (secpolicy_zinject(cr)); | |
877 | } | |
878 | ||
879 | static int | |
880 | zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr) | |
881 | { | |
882 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
883 | ||
884 | if (prop == ZPROP_INVAL) { | |
885 | if (!zfs_prop_user(zc->zc_value)) | |
886 | return (EINVAL); | |
887 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
888 | ZFS_DELEG_PERM_USERPROP, cr)); | |
889 | } else { | |
428870ff BB |
890 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
891 | NULL, cr)); | |
34dc7c2f BB |
892 | } |
893 | } | |
894 | ||
9babb374 BB |
895 | static int |
896 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, cred_t *cr) | |
897 | { | |
898 | int err = zfs_secpolicy_read(zc, cr); | |
899 | if (err) | |
900 | return (err); | |
901 | ||
902 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
903 | return (EINVAL); | |
904 | ||
905 | if (zc->zc_value[0] == 0) { | |
906 | /* | |
907 | * They are asking about a posix uid/gid. If it's | |
908 | * themself, allow it. | |
909 | */ | |
910 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
911 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
912 | if (zc->zc_guid == crgetuid(cr)) | |
913 | return (0); | |
914 | } else { | |
915 | if (groupmember(zc->zc_guid, cr)) | |
916 | return (0); | |
917 | } | |
918 | } | |
919 | ||
920 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
921 | userquota_perms[zc->zc_objset_type], cr)); | |
922 | } | |
923 | ||
924 | static int | |
925 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr) | |
926 | { | |
927 | int err = zfs_secpolicy_read(zc, cr); | |
928 | if (err) | |
929 | return (err); | |
930 | ||
931 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
932 | return (EINVAL); | |
933 | ||
934 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
935 | userquota_perms[zc->zc_objset_type], cr)); | |
936 | } | |
937 | ||
938 | static int | |
939 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr) | |
940 | { | |
428870ff BB |
941 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
942 | NULL, cr)); | |
9babb374 BB |
943 | } |
944 | ||
45d1cae3 BB |
945 | static int |
946 | zfs_secpolicy_hold(zfs_cmd_t *zc, cred_t *cr) | |
947 | { | |
948 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
949 | ZFS_DELEG_PERM_HOLD, cr)); | |
950 | } | |
951 | ||
952 | static int | |
953 | zfs_secpolicy_release(zfs_cmd_t *zc, cred_t *cr) | |
954 | { | |
955 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
956 | ZFS_DELEG_PERM_RELEASE, cr)); | |
957 | } | |
958 | ||
572e2857 BB |
959 | /* |
960 | * Policy for allowing temporary snapshots to be taken or released | |
961 | */ | |
962 | static int | |
963 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
964 | { | |
965 | /* | |
966 | * A temporary snapshot is the same as a snapshot, | |
967 | * hold, destroy and release all rolled into one. | |
968 | * Delegated diff alone is sufficient that we allow this. | |
969 | */ | |
970 | int error; | |
971 | ||
972 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
973 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
974 | return (0); | |
975 | ||
976 | error = zfs_secpolicy_snapshot(zc, cr); | |
977 | if (!error) | |
978 | error = zfs_secpolicy_hold(zc, cr); | |
979 | if (!error) | |
980 | error = zfs_secpolicy_release(zc, cr); | |
981 | if (!error) | |
982 | error = zfs_secpolicy_destroy(zc, cr); | |
983 | return (error); | |
984 | } | |
985 | ||
34dc7c2f BB |
986 | /* |
987 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
988 | */ | |
989 | static int | |
9babb374 | 990 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
991 | { |
992 | char *packed; | |
993 | int error; | |
994 | nvlist_t *list = NULL; | |
995 | ||
996 | /* | |
997 | * Read in and unpack the user-supplied nvlist. | |
998 | */ | |
999 | if (size == 0) | |
1000 | return (EINVAL); | |
1001 | ||
00b46022 | 1002 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 1003 | |
9babb374 BB |
1004 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1005 | iflag)) != 0) { | |
34dc7c2f BB |
1006 | kmem_free(packed, size); |
1007 | return (error); | |
1008 | } | |
1009 | ||
1010 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
1011 | kmem_free(packed, size); | |
1012 | return (error); | |
1013 | } | |
1014 | ||
1015 | kmem_free(packed, size); | |
1016 | ||
1017 | *nvp = list; | |
1018 | return (0); | |
1019 | } | |
1020 | ||
428870ff BB |
1021 | static int |
1022 | fit_error_list(zfs_cmd_t *zc, nvlist_t **errors) | |
1023 | { | |
1024 | size_t size; | |
1025 | ||
1026 | VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1027 | ||
1028 | if (size > zc->zc_nvlist_dst_size) { | |
1029 | nvpair_t *more_errors; | |
1030 | int n = 0; | |
1031 | ||
1032 | if (zc->zc_nvlist_dst_size < 1024) | |
1033 | return (ENOMEM); | |
1034 | ||
1035 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0); | |
1036 | more_errors = nvlist_prev_nvpair(*errors, NULL); | |
1037 | ||
1038 | do { | |
1039 | nvpair_t *pair = nvlist_prev_nvpair(*errors, | |
1040 | more_errors); | |
1041 | VERIFY(nvlist_remove_nvpair(*errors, pair) == 0); | |
1042 | n++; | |
1043 | VERIFY(nvlist_size(*errors, &size, | |
1044 | NV_ENCODE_NATIVE) == 0); | |
1045 | } while (size > zc->zc_nvlist_dst_size); | |
1046 | ||
1047 | VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0); | |
1048 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0); | |
1049 | ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1050 | ASSERT(size <= zc->zc_nvlist_dst_size); | |
1051 | } | |
1052 | ||
1053 | return (0); | |
1054 | } | |
1055 | ||
34dc7c2f BB |
1056 | static int |
1057 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1058 | { | |
1059 | char *packed = NULL; | |
428870ff | 1060 | int error = 0; |
34dc7c2f | 1061 | size_t size; |
34dc7c2f BB |
1062 | |
1063 | VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); | |
1064 | ||
1065 | if (size > zc->zc_nvlist_dst_size) { | |
1066 | error = ENOMEM; | |
1067 | } else { | |
00b46022 | 1068 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
1069 | VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, |
1070 | KM_SLEEP) == 0); | |
428870ff BB |
1071 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1072 | size, zc->zc_iflags) != 0) | |
1073 | error = EFAULT; | |
34dc7c2f BB |
1074 | kmem_free(packed, size); |
1075 | } | |
1076 | ||
1077 | zc->zc_nvlist_dst_size = size; | |
1078 | return (error); | |
1079 | } | |
1080 | ||
9babb374 | 1081 | static int |
3558fd73 | 1082 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1083 | { |
1084 | objset_t *os; | |
1085 | int error; | |
1086 | ||
428870ff | 1087 | error = dmu_objset_hold(dsname, FTAG, &os); |
9babb374 BB |
1088 | if (error) |
1089 | return (error); | |
428870ff BB |
1090 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1091 | dmu_objset_rele(os, FTAG); | |
1092 | return (EINVAL); | |
1093 | } | |
9babb374 | 1094 | |
428870ff | 1095 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1096 | *zsbp = dmu_objset_get_user(os); |
2cf7f52b | 1097 | if (*zsbp && (*zsbp)->z_sb) { |
61f218b0 | 1098 | atomic_inc(&((*zsbp)->z_sb->s_active)); |
9babb374 BB |
1099 | } else { |
1100 | error = ESRCH; | |
1101 | } | |
428870ff BB |
1102 | mutex_exit(&os->os_user_ptr_lock); |
1103 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1104 | return (error); |
1105 | } | |
1106 | ||
1107 | /* | |
3558fd73 | 1108 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1109 | * case its z_sb will be NULL, and it will be opened as the owner. |
9babb374 BB |
1110 | */ |
1111 | static int | |
3558fd73 | 1112 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1113 | { |
1114 | int error = 0; | |
9babb374 | 1115 | |
3558fd73 BB |
1116 | if (get_zfs_sb(name, zsbp) != 0) |
1117 | error = zfs_sb_create(name, zsbp); | |
9babb374 | 1118 | if (error == 0) { |
3558fd73 | 1119 | rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1120 | RW_READER, tag); |
3558fd73 | 1121 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1122 | /* |
1123 | * XXX we could probably try again, since the unmounting | |
1124 | * thread should be just about to disassociate the | |
1125 | * objset from the zfsvfs. | |
1126 | */ | |
3558fd73 | 1127 | rrw_exit(&(*zsbp)->z_teardown_lock, tag); |
9babb374 BB |
1128 | return (EBUSY); |
1129 | } | |
1130 | } | |
1131 | return (error); | |
1132 | } | |
1133 | ||
1134 | static void | |
3558fd73 | 1135 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1136 | { |
3558fd73 | 1137 | rrw_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1138 | |
2cf7f52b BB |
1139 | if (zsb->z_sb) { |
1140 | deactivate_super(zsb->z_sb); | |
9babb374 | 1141 | } else { |
3558fd73 BB |
1142 | dmu_objset_disown(zsb->z_os, zsb); |
1143 | zfs_sb_free(zsb); | |
9babb374 BB |
1144 | } |
1145 | } | |
1146 | ||
34dc7c2f BB |
1147 | static int |
1148 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1149 | { | |
1150 | int error; | |
1151 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1152 | nvlist_t *rootprops = NULL; |
1153 | nvlist_t *zplprops = NULL; | |
34dc7c2f BB |
1154 | char *buf; |
1155 | ||
c65aa5b2 BB |
1156 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1157 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1158 | return (error); |
1159 | ||
1160 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1161 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1162 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1163 | nvlist_free(config); |
1164 | return (error); | |
1165 | } | |
1166 | ||
b128c09f BB |
1167 | if (props) { |
1168 | nvlist_t *nvl = NULL; | |
1169 | uint64_t version = SPA_VERSION; | |
1170 | ||
1171 | (void) nvlist_lookup_uint64(props, | |
1172 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
1173 | if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) { | |
1174 | error = EINVAL; | |
1175 | goto pool_props_bad; | |
1176 | } | |
1177 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1178 | if (nvl) { | |
1179 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1180 | if (error != 0) { | |
1181 | nvlist_free(config); | |
1182 | nvlist_free(props); | |
1183 | return (error); | |
1184 | } | |
1185 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1186 | } | |
1187 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1188 | error = zfs_fill_zplprops_root(version, rootprops, | |
1189 | zplprops, NULL); | |
1190 | if (error) | |
1191 | goto pool_props_bad; | |
1192 | } | |
1193 | ||
34dc7c2f BB |
1194 | buf = history_str_get(zc); |
1195 | ||
b128c09f BB |
1196 | error = spa_create(zc->zc_name, config, props, buf, zplprops); |
1197 | ||
1198 | /* | |
1199 | * Set the remaining root properties | |
1200 | */ | |
428870ff BB |
1201 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1202 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1203 | (void) spa_destroy(zc->zc_name); |
34dc7c2f BB |
1204 | |
1205 | if (buf != NULL) | |
1206 | history_str_free(buf); | |
1207 | ||
b128c09f BB |
1208 | pool_props_bad: |
1209 | nvlist_free(rootprops); | |
1210 | nvlist_free(zplprops); | |
34dc7c2f | 1211 | nvlist_free(config); |
b128c09f | 1212 | nvlist_free(props); |
34dc7c2f BB |
1213 | |
1214 | return (error); | |
1215 | } | |
1216 | ||
1217 | static int | |
1218 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1219 | { | |
1220 | int error; | |
1221 | zfs_log_history(zc); | |
1222 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1223 | if (error == 0) |
1224 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1225 | return (error); |
1226 | } | |
1227 | ||
1228 | static int | |
1229 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1230 | { | |
34dc7c2f BB |
1231 | nvlist_t *config, *props = NULL; |
1232 | uint64_t guid; | |
428870ff | 1233 | int error; |
34dc7c2f BB |
1234 | |
1235 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1236 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1237 | return (error); |
1238 | ||
1239 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1240 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1241 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1242 | nvlist_free(config); |
1243 | return (error); | |
1244 | } | |
1245 | ||
1246 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1247 | guid != zc->zc_guid) | |
1248 | error = EINVAL; | |
1249 | else | |
572e2857 | 1250 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1251 | |
572e2857 BB |
1252 | if (zc->zc_nvlist_dst != 0) { |
1253 | int err; | |
1254 | ||
1255 | if ((err = put_nvlist(zc, config)) != 0) | |
1256 | error = err; | |
1257 | } | |
428870ff | 1258 | |
60101509 BB |
1259 | if (error == 0) |
1260 | zvol_create_minors(zc->zc_name); | |
1261 | ||
34dc7c2f BB |
1262 | nvlist_free(config); |
1263 | ||
1264 | if (props) | |
1265 | nvlist_free(props); | |
1266 | ||
1267 | return (error); | |
1268 | } | |
1269 | ||
1270 | static int | |
1271 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1272 | { | |
1273 | int error; | |
b128c09f | 1274 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1275 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1276 | |
34dc7c2f | 1277 | zfs_log_history(zc); |
fb5f0bc8 | 1278 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1279 | if (error == 0) |
1280 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1281 | return (error); |
1282 | } | |
1283 | ||
1284 | static int | |
1285 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1286 | { | |
1287 | nvlist_t *configs; | |
1288 | int error; | |
1289 | ||
1290 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
1291 | return (EEXIST); | |
1292 | ||
1293 | error = put_nvlist(zc, configs); | |
1294 | ||
1295 | nvlist_free(configs); | |
1296 | ||
1297 | return (error); | |
1298 | } | |
1299 | ||
1300 | static int | |
1301 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1302 | { | |
1303 | nvlist_t *config; | |
1304 | int error; | |
1305 | int ret = 0; | |
1306 | ||
1307 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1308 | sizeof (zc->zc_value)); | |
1309 | ||
1310 | if (config != NULL) { | |
1311 | ret = put_nvlist(zc, config); | |
1312 | nvlist_free(config); | |
1313 | ||
1314 | /* | |
1315 | * The config may be present even if 'error' is non-zero. | |
1316 | * In this case we return success, and preserve the real errno | |
1317 | * in 'zc_cookie'. | |
1318 | */ | |
1319 | zc->zc_cookie = error; | |
1320 | } else { | |
1321 | ret = error; | |
1322 | } | |
1323 | ||
1324 | return (ret); | |
1325 | } | |
1326 | ||
1327 | /* | |
1328 | * Try to import the given pool, returning pool stats as appropriate so that | |
1329 | * user land knows which devices are available and overall pool health. | |
1330 | */ | |
1331 | static int | |
1332 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1333 | { | |
1334 | nvlist_t *tryconfig, *config; | |
1335 | int error; | |
1336 | ||
1337 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1338 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1339 | return (error); |
1340 | ||
1341 | config = spa_tryimport(tryconfig); | |
1342 | ||
1343 | nvlist_free(tryconfig); | |
1344 | ||
1345 | if (config == NULL) | |
1346 | return (EINVAL); | |
1347 | ||
1348 | error = put_nvlist(zc, config); | |
1349 | nvlist_free(config); | |
1350 | ||
1351 | return (error); | |
1352 | } | |
1353 | ||
428870ff BB |
1354 | /* |
1355 | * inputs: | |
1356 | * zc_name name of the pool | |
1357 | * zc_cookie scan func (pool_scan_func_t) | |
1358 | */ | |
34dc7c2f | 1359 | static int |
428870ff | 1360 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1361 | { |
1362 | spa_t *spa; | |
1363 | int error; | |
1364 | ||
1365 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1366 | return (error); | |
1367 | ||
428870ff BB |
1368 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1369 | error = spa_scan_stop(spa); | |
1370 | else | |
1371 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1372 | |
1373 | spa_close(spa, FTAG); | |
1374 | ||
1375 | return (error); | |
1376 | } | |
1377 | ||
1378 | static int | |
1379 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1380 | { | |
1381 | spa_t *spa; | |
1382 | int error; | |
1383 | ||
1384 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1385 | if (error == 0) { | |
1386 | spa_freeze(spa); | |
1387 | spa_close(spa, FTAG); | |
1388 | } | |
1389 | return (error); | |
1390 | } | |
1391 | ||
1392 | static int | |
1393 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1394 | { | |
1395 | spa_t *spa; | |
1396 | int error; | |
1397 | ||
1398 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1399 | return (error); | |
1400 | ||
1401 | if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) { | |
1402 | spa_close(spa, FTAG); | |
1403 | return (EINVAL); | |
1404 | } | |
1405 | ||
1406 | spa_upgrade(spa, zc->zc_cookie); | |
1407 | spa_close(spa, FTAG); | |
1408 | ||
1409 | return (error); | |
1410 | } | |
1411 | ||
1412 | static int | |
1413 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1414 | { | |
1415 | spa_t *spa; | |
1416 | char *hist_buf; | |
1417 | uint64_t size; | |
1418 | int error; | |
1419 | ||
1420 | if ((size = zc->zc_history_len) == 0) | |
1421 | return (EINVAL); | |
1422 | ||
1423 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1424 | return (error); | |
1425 | ||
1426 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1427 | spa_close(spa, FTAG); | |
1428 | return (ENOTSUP); | |
1429 | } | |
1430 | ||
34b84cb8 | 1431 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1432 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1433 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1434 | error = ddi_copyout(hist_buf, |
1435 | (void *)(uintptr_t)zc->zc_history, | |
1436 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1437 | } |
1438 | ||
1439 | spa_close(spa, FTAG); | |
34b84cb8 | 1440 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1441 | return (error); |
1442 | } | |
1443 | ||
3541dc6d GA |
1444 | static int |
1445 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1446 | { | |
1447 | spa_t *spa; | |
1448 | int error; | |
1449 | ||
1450 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1451 | if (error == 0) { | |
1452 | error = spa_change_guid(spa); | |
1453 | spa_close(spa, FTAG); | |
1454 | } | |
1455 | return (error); | |
1456 | } | |
1457 | ||
34dc7c2f BB |
1458 | static int |
1459 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1460 | { | |
1461 | int error; | |
1462 | ||
c65aa5b2 | 1463 | if ((error = dsl_dsobj_to_dsname(zc->zc_name,zc->zc_obj,zc->zc_value))) |
34dc7c2f BB |
1464 | return (error); |
1465 | ||
1466 | return (0); | |
1467 | } | |
1468 | ||
428870ff BB |
1469 | /* |
1470 | * inputs: | |
1471 | * zc_name name of filesystem | |
1472 | * zc_obj object to find | |
1473 | * | |
1474 | * outputs: | |
1475 | * zc_value name of object | |
1476 | */ | |
34dc7c2f BB |
1477 | static int |
1478 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1479 | { | |
428870ff | 1480 | objset_t *os; |
34dc7c2f BB |
1481 | int error; |
1482 | ||
428870ff BB |
1483 | /* XXX reading from objset not owned */ |
1484 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1485 | return (error); |
428870ff BB |
1486 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1487 | dmu_objset_rele(os, FTAG); | |
1488 | return (EINVAL); | |
1489 | } | |
1490 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1491 | sizeof (zc->zc_value)); |
428870ff | 1492 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1493 | |
1494 | return (error); | |
1495 | } | |
1496 | ||
572e2857 BB |
1497 | /* |
1498 | * inputs: | |
1499 | * zc_name name of filesystem | |
1500 | * zc_obj object to find | |
1501 | * | |
1502 | * outputs: | |
1503 | * zc_stat stats on object | |
1504 | * zc_value path to object | |
1505 | */ | |
1506 | static int | |
1507 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1508 | { | |
1509 | objset_t *os; | |
1510 | int error; | |
1511 | ||
1512 | /* XXX reading from objset not owned */ | |
1513 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1514 | return (error); | |
1515 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1516 | dmu_objset_rele(os, FTAG); | |
1517 | return (EINVAL); | |
1518 | } | |
1519 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1520 | sizeof (zc->zc_value)); | |
1521 | dmu_objset_rele(os, FTAG); | |
1522 | ||
1523 | return (error); | |
1524 | } | |
1525 | ||
34dc7c2f BB |
1526 | static int |
1527 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1528 | { | |
1529 | spa_t *spa; | |
1530 | int error; | |
1531 | nvlist_t *config, **l2cache, **spares; | |
1532 | uint_t nl2cache = 0, nspares = 0; | |
1533 | ||
1534 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1535 | if (error != 0) | |
1536 | return (error); | |
1537 | ||
1538 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1539 | zc->zc_iflags, &config); |
34dc7c2f BB |
1540 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, |
1541 | &l2cache, &nl2cache); | |
1542 | ||
1543 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, | |
1544 | &spares, &nspares); | |
1545 | ||
1546 | /* | |
1547 | * A root pool with concatenated devices is not supported. | |
1548 | * Thus, can not add a device to a root pool. | |
1549 | * | |
1550 | * Intent log device can not be added to a rootpool because | |
1551 | * during mountroot, zil is replayed, a seperated log device | |
1552 | * can not be accessed during the mountroot time. | |
1553 | * | |
1554 | * l2cache and spare devices are ok to be added to a rootpool. | |
1555 | */ | |
428870ff BB |
1556 | if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { |
1557 | nvlist_free(config); | |
34dc7c2f BB |
1558 | spa_close(spa, FTAG); |
1559 | return (EDOM); | |
1560 | } | |
1561 | ||
1562 | if (error == 0) { | |
1563 | error = spa_vdev_add(spa, config); | |
1564 | nvlist_free(config); | |
1565 | } | |
1566 | spa_close(spa, FTAG); | |
1567 | return (error); | |
1568 | } | |
1569 | ||
428870ff BB |
1570 | /* |
1571 | * inputs: | |
1572 | * zc_name name of the pool | |
1573 | * zc_nvlist_conf nvlist of devices to remove | |
1574 | * zc_cookie to stop the remove? | |
1575 | */ | |
34dc7c2f BB |
1576 | static int |
1577 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1578 | { | |
1579 | spa_t *spa; | |
1580 | int error; | |
1581 | ||
1582 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1583 | if (error != 0) | |
1584 | return (error); | |
1585 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1586 | spa_close(spa, FTAG); | |
1587 | return (error); | |
1588 | } | |
1589 | ||
1590 | static int | |
1591 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1592 | { | |
1593 | spa_t *spa; | |
1594 | int error; | |
1595 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1596 | ||
1597 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1598 | return (error); | |
1599 | switch (zc->zc_cookie) { | |
1600 | case VDEV_STATE_ONLINE: | |
1601 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1602 | break; | |
1603 | ||
1604 | case VDEV_STATE_OFFLINE: | |
1605 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1606 | break; | |
1607 | ||
1608 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1609 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1610 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1611 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1612 | ||
1613 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1614 | break; |
1615 | ||
1616 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1617 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1618 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1619 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1620 | ||
1621 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1622 | break; |
1623 | ||
1624 | default: | |
1625 | error = EINVAL; | |
1626 | } | |
1627 | zc->zc_cookie = newstate; | |
1628 | spa_close(spa, FTAG); | |
1629 | return (error); | |
1630 | } | |
1631 | ||
1632 | static int | |
1633 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1634 | { | |
1635 | spa_t *spa; | |
1636 | int replacing = zc->zc_cookie; | |
1637 | nvlist_t *config; | |
1638 | int error; | |
1639 | ||
1640 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1641 | return (error); | |
1642 | ||
1643 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1644 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1645 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1646 | nvlist_free(config); | |
1647 | } | |
1648 | ||
1649 | spa_close(spa, FTAG); | |
1650 | return (error); | |
1651 | } | |
1652 | ||
1653 | static int | |
1654 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1655 | { | |
1656 | spa_t *spa; | |
1657 | int error; | |
1658 | ||
1659 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1660 | return (error); | |
1661 | ||
fb5f0bc8 | 1662 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1663 | |
1664 | spa_close(spa, FTAG); | |
1665 | return (error); | |
1666 | } | |
1667 | ||
428870ff BB |
1668 | static int |
1669 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1670 | { | |
1671 | spa_t *spa; | |
1672 | nvlist_t *config, *props = NULL; | |
1673 | int error; | |
1674 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1675 | ||
1676 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1677 | return (error); | |
1678 | ||
c65aa5b2 BB |
1679 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1680 | zc->zc_iflags, &config))) { | |
428870ff BB |
1681 | spa_close(spa, FTAG); |
1682 | return (error); | |
1683 | } | |
1684 | ||
1685 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1686 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1687 | zc->zc_iflags, &props))) { | |
1688 | spa_close(spa, FTAG); | |
1689 | nvlist_free(config); | |
1690 | return (error); | |
1691 | } | |
1692 | ||
1693 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1694 | ||
1695 | spa_close(spa, FTAG); | |
1696 | ||
1697 | nvlist_free(config); | |
1698 | nvlist_free(props); | |
1699 | ||
1700 | return (error); | |
1701 | } | |
1702 | ||
34dc7c2f BB |
1703 | static int |
1704 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1705 | { | |
1706 | spa_t *spa; | |
1707 | char *path = zc->zc_value; | |
1708 | uint64_t guid = zc->zc_guid; | |
1709 | int error; | |
1710 | ||
1711 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1712 | if (error != 0) | |
1713 | return (error); | |
1714 | ||
1715 | error = spa_vdev_setpath(spa, guid, path); | |
1716 | spa_close(spa, FTAG); | |
1717 | return (error); | |
1718 | } | |
1719 | ||
9babb374 BB |
1720 | static int |
1721 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1722 | { | |
1723 | spa_t *spa; | |
1724 | char *fru = zc->zc_value; | |
1725 | uint64_t guid = zc->zc_guid; | |
1726 | int error; | |
1727 | ||
1728 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1729 | if (error != 0) | |
1730 | return (error); | |
1731 | ||
1732 | error = spa_vdev_setfru(spa, guid, fru); | |
1733 | spa_close(spa, FTAG); | |
1734 | return (error); | |
1735 | } | |
1736 | ||
34dc7c2f | 1737 | static int |
572e2857 | 1738 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 1739 | { |
572e2857 | 1740 | int error = 0; |
34dc7c2f BB |
1741 | nvlist_t *nv; |
1742 | ||
34dc7c2f BB |
1743 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
1744 | ||
1745 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 1746 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
1747 | dmu_objset_stats(os, nv); |
1748 | /* | |
1749 | * NB: zvol_get_stats() will read the objset contents, | |
1750 | * which we aren't supposed to do with a | |
b128c09f | 1751 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 1752 | * inconsistent. So this is a bit of a workaround... |
428870ff | 1753 | * XXX reading with out owning |
34dc7c2f | 1754 | */ |
330d06f9 MA |
1755 | if (!zc->zc_objset_stats.dds_inconsistent && |
1756 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
1757 | error = zvol_get_stats(os, nv); | |
1758 | if (error == EIO) | |
1759 | return (error); | |
1760 | VERIFY3S(error, ==, 0); | |
34dc7c2f | 1761 | } |
8a8f5c6b BB |
1762 | if (error == 0) |
1763 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
1764 | nvlist_free(nv); |
1765 | } | |
1766 | ||
572e2857 BB |
1767 | return (error); |
1768 | } | |
1769 | ||
1770 | /* | |
1771 | * inputs: | |
1772 | * zc_name name of filesystem | |
1773 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1774 | * | |
1775 | * outputs: | |
1776 | * zc_objset_stats stats | |
1777 | * zc_nvlist_dst property nvlist | |
1778 | * zc_nvlist_dst_size size of property nvlist | |
1779 | */ | |
1780 | static int | |
1781 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
1782 | { | |
1783 | objset_t *os = NULL; | |
1784 | int error; | |
1785 | ||
c65aa5b2 | 1786 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
572e2857 BB |
1787 | return (error); |
1788 | ||
1789 | error = zfs_ioc_objset_stats_impl(zc, os); | |
1790 | ||
428870ff | 1791 | dmu_objset_rele(os, FTAG); |
572e2857 | 1792 | |
428870ff BB |
1793 | return (error); |
1794 | } | |
1795 | ||
1796 | /* | |
1797 | * inputs: | |
1798 | * zc_name name of filesystem | |
1799 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1800 | * | |
1801 | * outputs: | |
1802 | * zc_nvlist_dst received property nvlist | |
1803 | * zc_nvlist_dst_size size of received property nvlist | |
1804 | * | |
1805 | * Gets received properties (distinct from local properties on or after | |
1806 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
1807 | * local property values. | |
1808 | */ | |
1809 | static int | |
26685276 | 1810 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff BB |
1811 | { |
1812 | objset_t *os = NULL; | |
1813 | int error; | |
1814 | nvlist_t *nv; | |
1815 | ||
c65aa5b2 | 1816 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
428870ff BB |
1817 | return (error); |
1818 | ||
1819 | /* | |
1820 | * Without this check, we would return local property values if the | |
1821 | * caller has not already received properties on or after | |
1822 | * SPA_VERSION_RECVD_PROPS. | |
1823 | */ | |
1824 | if (!dsl_prop_get_hasrecvd(os)) { | |
1825 | dmu_objset_rele(os, FTAG); | |
1826 | return (ENOTSUP); | |
1827 | } | |
1828 | ||
1829 | if (zc->zc_nvlist_dst != 0 && | |
1830 | (error = dsl_prop_get_received(os, &nv)) == 0) { | |
1831 | error = put_nvlist(zc, nv); | |
1832 | nvlist_free(nv); | |
1833 | } | |
1834 | ||
1835 | dmu_objset_rele(os, FTAG); | |
34dc7c2f BB |
1836 | return (error); |
1837 | } | |
1838 | ||
1839 | static int | |
1840 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
1841 | { | |
1842 | uint64_t value; | |
1843 | int error; | |
1844 | ||
1845 | /* | |
1846 | * zfs_get_zplprop() will either find a value or give us | |
1847 | * the default value (if there is one). | |
1848 | */ | |
1849 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
1850 | return (error); | |
1851 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
1852 | return (0); | |
1853 | } | |
1854 | ||
1855 | /* | |
1856 | * inputs: | |
1857 | * zc_name name of filesystem | |
1858 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
1859 | * | |
1860 | * outputs: | |
1861 | * zc_nvlist_dst zpl property nvlist | |
1862 | * zc_nvlist_dst_size size of zpl property nvlist | |
1863 | */ | |
1864 | static int | |
1865 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
1866 | { | |
1867 | objset_t *os; | |
1868 | int err; | |
1869 | ||
428870ff | 1870 | /* XXX reading without owning */ |
c65aa5b2 | 1871 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
1872 | return (err); |
1873 | ||
1874 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
1875 | ||
1876 | /* | |
1877 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
1878 | * which we aren't supposed to do with a DS_MODE_USER |
1879 | * hold, because it could be inconsistent. | |
34dc7c2f | 1880 | */ |
b8864a23 | 1881 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
1882 | !zc->zc_objset_stats.dds_inconsistent && |
1883 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
1884 | nvlist_t *nv; | |
1885 | ||
1886 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1887 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
1888 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
1889 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
1890 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
1891 | err = put_nvlist(zc, nv); | |
1892 | nvlist_free(nv); | |
1893 | } else { | |
1894 | err = ENOENT; | |
1895 | } | |
428870ff | 1896 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1897 | return (err); |
1898 | } | |
1899 | ||
9babb374 BB |
1900 | static boolean_t |
1901 | dataset_name_hidden(const char *name) | |
1902 | { | |
1903 | /* | |
1904 | * Skip over datasets that are not visible in this zone, | |
1905 | * internal datasets (which have a $ in their name), and | |
1906 | * temporary datasets (which have a % in their name). | |
1907 | */ | |
1908 | if (strchr(name, '$') != NULL) | |
1909 | return (B_TRUE); | |
1910 | if (strchr(name, '%') != NULL) | |
1911 | return (B_TRUE); | |
1912 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
1913 | return (B_TRUE); | |
1914 | return (B_FALSE); | |
1915 | } | |
1916 | ||
34dc7c2f BB |
1917 | /* |
1918 | * inputs: | |
1919 | * zc_name name of filesystem | |
1920 | * zc_cookie zap cursor | |
1921 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1922 | * | |
1923 | * outputs: | |
1924 | * zc_name name of next filesystem | |
9babb374 | 1925 | * zc_cookie zap cursor |
34dc7c2f BB |
1926 | * zc_objset_stats stats |
1927 | * zc_nvlist_dst property nvlist | |
1928 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1929 | */ |
1930 | static int | |
1931 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
1932 | { | |
1933 | objset_t *os; | |
1934 | int error; | |
1935 | char *p; | |
428870ff | 1936 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 1937 | |
428870ff | 1938 | top: |
c65aa5b2 | 1939 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f BB |
1940 | if (error == ENOENT) |
1941 | error = ESRCH; | |
1942 | return (error); | |
1943 | } | |
1944 | ||
1945 | p = strrchr(zc->zc_name, '/'); | |
1946 | if (p == NULL || p[1] != '\0') | |
1947 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
1948 | p = zc->zc_name + strlen(zc->zc_name); | |
1949 | ||
9babb374 BB |
1950 | /* |
1951 | * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0 | |
1952 | * but is not declared void because its called by dmu_objset_find(). | |
1953 | */ | |
d164b209 BB |
1954 | if (zc->zc_cookie == 0) { |
1955 | uint64_t cookie = 0; | |
1956 | int len = sizeof (zc->zc_name) - (p - zc->zc_name); | |
1957 | ||
7d5cd71d MM |
1958 | while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0) { |
1959 | if (!dataset_name_hidden(zc->zc_name)) | |
1960 | (void) dmu_objset_prefetch(zc->zc_name, NULL); | |
1961 | } | |
d164b209 BB |
1962 | } |
1963 | ||
34dc7c2f BB |
1964 | do { |
1965 | error = dmu_dir_list_next(os, | |
1966 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
1967 | NULL, &zc->zc_cookie); | |
1968 | if (error == ENOENT) | |
1969 | error = ESRCH; | |
330d06f9 | 1970 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 1971 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 1972 | |
428870ff BB |
1973 | /* |
1974 | * If it's an internal dataset (ie. with a '$' in its name), | |
1975 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
1976 | */ | |
1977 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 1978 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
1979 | if (error == ENOENT) { |
1980 | /* We lost a race with destroy, get the next one. */ | |
1981 | zc->zc_name[orig_len] = '\0'; | |
1982 | goto top; | |
1983 | } | |
1984 | } | |
34dc7c2f BB |
1985 | return (error); |
1986 | } | |
1987 | ||
1988 | /* | |
1989 | * inputs: | |
1990 | * zc_name name of filesystem | |
1991 | * zc_cookie zap cursor | |
1992 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1993 | * | |
1994 | * outputs: | |
1995 | * zc_name name of next snapshot | |
1996 | * zc_objset_stats stats | |
1997 | * zc_nvlist_dst property nvlist | |
1998 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1999 | */ |
2000 | static int | |
2001 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2002 | { | |
2003 | objset_t *os; | |
2004 | int error; | |
2005 | ||
428870ff | 2006 | top: |
0cee2406 | 2007 | if (zc->zc_cookie == 0 && !zc->zc_simple) |
428870ff BB |
2008 | (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch, |
2009 | NULL, DS_FIND_SNAPSHOTS); | |
2010 | ||
2011 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
b128c09f BB |
2012 | if (error) |
2013 | return (error == ENOENT ? ESRCH : error); | |
34dc7c2f BB |
2014 | |
2015 | /* | |
2016 | * A dataset name of maximum length cannot have any snapshots, | |
2017 | * so exit immediately. | |
2018 | */ | |
2019 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2020 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2021 | return (ESRCH); |
2022 | } | |
2023 | ||
2024 | error = dmu_snapshot_list_next(os, | |
2025 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2026 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2027 | NULL); | |
2028 | ||
0cee2406 | 2029 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2030 | dsl_dataset_t *ds; |
2031 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2032 | ||
2033 | /* | |
2034 | * Since we probably don't have a hold on this snapshot, | |
2035 | * it's possible that the objsetid could have been destroyed | |
2036 | * and reused for a new objset. It's OK if this happens during | |
2037 | * a zfs send operation, since the new createtxg will be | |
2038 | * beyond the range we're interested in. | |
2039 | */ | |
2040 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
2041 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); | |
2042 | rw_exit(&dp->dp_config_rwlock); | |
2043 | if (error) { | |
2044 | if (error == ENOENT) { | |
2045 | /* Racing with destroy, get the next one. */ | |
2046 | *strchr(zc->zc_name, '@') = '\0'; | |
2047 | dmu_objset_rele(os, FTAG); | |
2048 | goto top; | |
2049 | } | |
2050 | } else { | |
2051 | objset_t *ossnap; | |
2052 | ||
2053 | error = dmu_objset_from_ds(ds, &ossnap); | |
2054 | if (error == 0) | |
2055 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2056 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2057 | } |
2058 | } else if (error == ENOENT) { | |
b128c09f | 2059 | error = ESRCH; |
428870ff | 2060 | } |
34dc7c2f | 2061 | |
572e2857 | 2062 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2063 | /* if we failed, undo the @ that we tacked on to zc_name */ |
b128c09f | 2064 | if (error) |
34dc7c2f | 2065 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2066 | return (error); |
2067 | } | |
2068 | ||
428870ff BB |
2069 | static int |
2070 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2071 | { |
428870ff BB |
2072 | const char *propname = nvpair_name(pair); |
2073 | uint64_t *valary; | |
2074 | unsigned int vallen; | |
2075 | const char *domain; | |
2076 | char *dash; | |
2077 | zfs_userquota_prop_t type; | |
2078 | uint64_t rid; | |
2079 | uint64_t quota; | |
3558fd73 | 2080 | zfs_sb_t *zsb; |
428870ff BB |
2081 | int err; |
2082 | ||
2083 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2084 | nvlist_t *attrs; | |
2085 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2086 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2087 | &pair) != 0) | |
2088 | return (EINVAL); | |
2089 | } | |
34dc7c2f BB |
2090 | |
2091 | /* | |
428870ff BB |
2092 | * A correctly constructed propname is encoded as |
2093 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2094 | */ |
428870ff BB |
2095 | if ((dash = strchr(propname, '-')) == NULL || |
2096 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2097 | vallen != 3) | |
2098 | return (EINVAL); | |
34dc7c2f | 2099 | |
428870ff BB |
2100 | domain = dash + 1; |
2101 | type = valary[0]; | |
2102 | rid = valary[1]; | |
2103 | quota = valary[2]; | |
34dc7c2f | 2104 | |
3558fd73 | 2105 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2106 | if (err == 0) { |
3558fd73 BB |
2107 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2108 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2109 | } |
9babb374 | 2110 | |
428870ff BB |
2111 | return (err); |
2112 | } | |
34dc7c2f | 2113 | |
428870ff BB |
2114 | /* |
2115 | * If the named property is one that has a special function to set its value, | |
2116 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2117 | * not one of the special properties handled by this function, return -1. | |
2118 | * | |
2119 | * XXX: It would be better for callers of the property interface if we handled | |
2120 | * these special cases in dsl_prop.c (in the dsl layer). | |
2121 | */ | |
2122 | static int | |
2123 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2124 | nvpair_t *pair) | |
2125 | { | |
2126 | const char *propname = nvpair_name(pair); | |
2127 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2128 | uint64_t intval; | |
2129 | int err; | |
9babb374 | 2130 | |
428870ff BB |
2131 | if (prop == ZPROP_INVAL) { |
2132 | if (zfs_prop_userquota(propname)) | |
2133 | return (zfs_prop_set_userquota(dsname, pair)); | |
2134 | return (-1); | |
2135 | } | |
34dc7c2f | 2136 | |
428870ff BB |
2137 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2138 | nvlist_t *attrs; | |
2139 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2140 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2141 | &pair) == 0); | |
2142 | } | |
b128c09f | 2143 | |
428870ff BB |
2144 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2145 | return (-1); | |
34dc7c2f | 2146 | |
428870ff | 2147 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2148 | |
428870ff BB |
2149 | switch (prop) { |
2150 | case ZFS_PROP_QUOTA: | |
2151 | err = dsl_dir_set_quota(dsname, source, intval); | |
2152 | break; | |
2153 | case ZFS_PROP_REFQUOTA: | |
2154 | err = dsl_dataset_set_quota(dsname, source, intval); | |
2155 | break; | |
2156 | case ZFS_PROP_RESERVATION: | |
2157 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2158 | break; | |
2159 | case ZFS_PROP_REFRESERVATION: | |
2160 | err = dsl_dataset_set_reservation(dsname, source, intval); | |
2161 | break; | |
2162 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2163 | err = zvol_set_volsize(dsname, intval); |
428870ff BB |
2164 | break; |
2165 | case ZFS_PROP_VERSION: | |
2166 | { | |
3558fd73 | 2167 | zfs_sb_t *zsb; |
428870ff | 2168 | |
3558fd73 | 2169 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2170 | break; |
b128c09f | 2171 | |
3558fd73 BB |
2172 | err = zfs_set_version(zsb, intval); |
2173 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2174 | |
428870ff BB |
2175 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2176 | zfs_cmd_t *zc; | |
34dc7c2f | 2177 | |
fa6e5ced BB |
2178 | zc = kmem_zalloc(sizeof (zfs_cmd_t), |
2179 | KM_SLEEP | KM_NODEBUG); | |
428870ff BB |
2180 | (void) strcpy(zc->zc_name, dsname); |
2181 | (void) zfs_ioc_userspace_upgrade(zc); | |
2182 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2183 | } |
428870ff BB |
2184 | break; |
2185 | } | |
34dc7c2f | 2186 | |
428870ff BB |
2187 | default: |
2188 | err = -1; | |
2189 | } | |
34dc7c2f | 2190 | |
428870ff BB |
2191 | return (err); |
2192 | } | |
34dc7c2f | 2193 | |
428870ff BB |
2194 | /* |
2195 | * This function is best effort. If it fails to set any of the given properties, | |
2196 | * it continues to set as many as it can and returns the first error | |
2197 | * encountered. If the caller provides a non-NULL errlist, it also gives the | |
2198 | * complete list of names of all the properties it failed to set along with the | |
2199 | * corresponding error numbers. The caller is responsible for freeing the | |
2200 | * returned errlist. | |
2201 | * | |
2202 | * If every property is set successfully, zero is returned and the list pointed | |
2203 | * at by errlist is NULL. | |
2204 | */ | |
2205 | int | |
2206 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
2207 | nvlist_t **errlist) | |
2208 | { | |
2209 | nvpair_t *pair; | |
2210 | nvpair_t *propval; | |
2211 | int rv = 0; | |
2212 | uint64_t intval; | |
2213 | char *strval; | |
2214 | nvlist_t *genericnvl; | |
2215 | nvlist_t *errors; | |
2216 | nvlist_t *retrynvl; | |
34dc7c2f | 2217 | |
428870ff BB |
2218 | VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
2219 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2220 | VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
34dc7c2f | 2221 | |
428870ff BB |
2222 | retry: |
2223 | pair = NULL; | |
2224 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2225 | const char *propname = nvpair_name(pair); | |
2226 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2227 | int err = 0; | |
2228 | ||
2229 | /* decode the property value */ | |
2230 | propval = pair; | |
2231 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2232 | nvlist_t *attrs; | |
2233 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2234 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2235 | &propval) != 0) | |
2236 | err = EINVAL; | |
9babb374 | 2237 | } |
34dc7c2f | 2238 | |
428870ff BB |
2239 | /* Validate value type */ |
2240 | if (err == 0 && prop == ZPROP_INVAL) { | |
2241 | if (zfs_prop_user(propname)) { | |
2242 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2243 | err = EINVAL; | |
2244 | } else if (zfs_prop_userquota(propname)) { | |
2245 | if (nvpair_type(propval) != | |
2246 | DATA_TYPE_UINT64_ARRAY) | |
2247 | err = EINVAL; | |
330d06f9 MA |
2248 | } else { |
2249 | err = EINVAL; | |
428870ff BB |
2250 | } |
2251 | } else if (err == 0) { | |
2252 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2253 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2254 | err = EINVAL; | |
2255 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { | |
34dc7c2f BB |
2256 | const char *unused; |
2257 | ||
428870ff BB |
2258 | VERIFY(nvpair_value_uint64(propval, |
2259 | &intval) == 0); | |
34dc7c2f BB |
2260 | |
2261 | switch (zfs_prop_get_type(prop)) { | |
2262 | case PROP_TYPE_NUMBER: | |
2263 | break; | |
2264 | case PROP_TYPE_STRING: | |
428870ff BB |
2265 | err = EINVAL; |
2266 | break; | |
34dc7c2f BB |
2267 | case PROP_TYPE_INDEX: |
2268 | if (zfs_prop_index_to_string(prop, | |
428870ff BB |
2269 | intval, &unused) != 0) |
2270 | err = EINVAL; | |
34dc7c2f BB |
2271 | break; |
2272 | default: | |
2273 | cmn_err(CE_PANIC, | |
2274 | "unknown property type"); | |
34dc7c2f | 2275 | } |
34dc7c2f | 2276 | } else { |
428870ff | 2277 | err = EINVAL; |
34dc7c2f | 2278 | } |
34dc7c2f | 2279 | } |
428870ff BB |
2280 | |
2281 | /* Validate permissions */ | |
2282 | if (err == 0) | |
2283 | err = zfs_check_settable(dsname, pair, CRED()); | |
2284 | ||
2285 | if (err == 0) { | |
2286 | err = zfs_prop_set_special(dsname, source, pair); | |
2287 | if (err == -1) { | |
2288 | /* | |
2289 | * For better performance we build up a list of | |
2290 | * properties to set in a single transaction. | |
2291 | */ | |
2292 | err = nvlist_add_nvpair(genericnvl, pair); | |
2293 | } else if (err != 0 && nvl != retrynvl) { | |
2294 | /* | |
2295 | * This may be a spurious error caused by | |
2296 | * receiving quota and reservation out of order. | |
2297 | * Try again in a second pass. | |
2298 | */ | |
2299 | err = nvlist_add_nvpair(retrynvl, pair); | |
2300 | } | |
2301 | } | |
2302 | ||
2303 | if (err != 0) | |
2304 | VERIFY(nvlist_add_int32(errors, propname, err) == 0); | |
34dc7c2f BB |
2305 | } |
2306 | ||
428870ff BB |
2307 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2308 | nvl = retrynvl; | |
2309 | goto retry; | |
2310 | } | |
2311 | ||
2312 | if (!nvlist_empty(genericnvl) && | |
2313 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2314 | /* | |
2315 | * If this fails, we still want to set as many properties as we | |
2316 | * can, so try setting them individually. | |
2317 | */ | |
2318 | pair = NULL; | |
2319 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2320 | const char *propname = nvpair_name(pair); | |
2321 | int err = 0; | |
2322 | ||
2323 | propval = pair; | |
2324 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2325 | nvlist_t *attrs; | |
2326 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2327 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2328 | &propval) == 0); | |
2329 | } | |
2330 | ||
2331 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2332 | VERIFY(nvpair_value_string(propval, | |
2333 | &strval) == 0); | |
2334 | err = dsl_prop_set(dsname, propname, source, 1, | |
2335 | strlen(strval) + 1, strval); | |
2336 | } else { | |
2337 | VERIFY(nvpair_value_uint64(propval, | |
2338 | &intval) == 0); | |
2339 | err = dsl_prop_set(dsname, propname, source, 8, | |
2340 | 1, &intval); | |
2341 | } | |
2342 | ||
2343 | if (err != 0) { | |
2344 | VERIFY(nvlist_add_int32(errors, propname, | |
2345 | err) == 0); | |
2346 | } | |
2347 | } | |
9babb374 | 2348 | } |
9babb374 | 2349 | nvlist_free(genericnvl); |
428870ff BB |
2350 | nvlist_free(retrynvl); |
2351 | ||
2352 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
2353 | nvlist_free(errors); | |
2354 | errors = NULL; | |
2355 | } else { | |
2356 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
2357 | } | |
2358 | ||
2359 | if (errlist == NULL) | |
2360 | nvlist_free(errors); | |
2361 | else | |
2362 | *errlist = errors; | |
2363 | ||
2364 | return (rv); | |
9babb374 BB |
2365 | } |
2366 | ||
2367 | /* | |
2368 | * Check that all the properties are valid user properties. | |
2369 | */ | |
2370 | static int | |
2371 | zfs_check_userprops(char *fsname, nvlist_t *nvl) | |
2372 | { | |
428870ff | 2373 | nvpair_t *pair = NULL; |
9babb374 BB |
2374 | int error = 0; |
2375 | ||
428870ff BB |
2376 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2377 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2378 | char *valstr; |
2379 | ||
2380 | if (!zfs_prop_user(propname) || | |
428870ff | 2381 | nvpair_type(pair) != DATA_TYPE_STRING) |
9babb374 BB |
2382 | return (EINVAL); |
2383 | ||
c65aa5b2 BB |
2384 | if ((error = zfs_secpolicy_write_perms(fsname, |
2385 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2386 | return (error); |
2387 | ||
2388 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2389 | return (ENAMETOOLONG); | |
2390 | ||
428870ff | 2391 | VERIFY(nvpair_value_string(pair, &valstr) == 0); |
9babb374 BB |
2392 | if (strlen(valstr) >= ZAP_MAXVALUELEN) |
2393 | return (E2BIG); | |
2394 | } | |
34dc7c2f BB |
2395 | return (0); |
2396 | } | |
2397 | ||
428870ff BB |
2398 | static void |
2399 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2400 | { | |
2401 | nvpair_t *pair; | |
2402 | ||
2403 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2404 | ||
2405 | pair = NULL; | |
2406 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2407 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2408 | continue; | |
2409 | ||
2410 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2411 | } | |
2412 | } | |
2413 | ||
2414 | static int | |
2415 | clear_received_props(objset_t *os, const char *fs, nvlist_t *props, | |
2416 | nvlist_t *skipped) | |
2417 | { | |
2418 | int err = 0; | |
2419 | nvlist_t *cleared_props = NULL; | |
2420 | props_skip(props, skipped, &cleared_props); | |
2421 | if (!nvlist_empty(cleared_props)) { | |
2422 | /* | |
2423 | * Acts on local properties until the dataset has received | |
2424 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2425 | */ | |
2426 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
2427 | (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0)); | |
2428 | err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL); | |
2429 | } | |
2430 | nvlist_free(cleared_props); | |
2431 | return (err); | |
2432 | } | |
2433 | ||
34dc7c2f BB |
2434 | /* |
2435 | * inputs: | |
2436 | * zc_name name of filesystem | |
9babb374 | 2437 | * zc_value name of property to set |
34dc7c2f | 2438 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2439 | * zc_cookie received properties flag |
34dc7c2f | 2440 | * |
428870ff BB |
2441 | * outputs: |
2442 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2443 | */ |
2444 | static int | |
2445 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2446 | { | |
2447 | nvlist_t *nvl; | |
428870ff BB |
2448 | boolean_t received = zc->zc_cookie; |
2449 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2450 | ZPROP_SRC_LOCAL); | |
2451 | nvlist_t *errors = NULL; | |
34dc7c2f BB |
2452 | int error; |
2453 | ||
2454 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2455 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2456 | return (error); |
2457 | ||
428870ff | 2458 | if (received) { |
b128c09f BB |
2459 | nvlist_t *origprops; |
2460 | objset_t *os; | |
2461 | ||
428870ff BB |
2462 | if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) { |
2463 | if (dsl_prop_get_received(os, &origprops) == 0) { | |
2464 | (void) clear_received_props(os, | |
2465 | zc->zc_name, origprops, nvl); | |
b128c09f BB |
2466 | nvlist_free(origprops); |
2467 | } | |
b128c09f | 2468 | |
428870ff BB |
2469 | dsl_prop_set_hasrecvd(os); |
2470 | dmu_objset_rele(os, FTAG); | |
2471 | } | |
b128c09f BB |
2472 | } |
2473 | ||
428870ff | 2474 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors); |
34dc7c2f | 2475 | |
b8864a23 | 2476 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2477 | (void) put_nvlist(zc, errors); |
2478 | } | |
2479 | ||
2480 | nvlist_free(errors); | |
34dc7c2f BB |
2481 | nvlist_free(nvl); |
2482 | return (error); | |
2483 | } | |
2484 | ||
2485 | /* | |
2486 | * inputs: | |
2487 | * zc_name name of filesystem | |
2488 | * zc_value name of property to inherit | |
428870ff | 2489 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2490 | * |
2491 | * outputs: none | |
2492 | */ | |
2493 | static int | |
2494 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2495 | { | |
428870ff BB |
2496 | const char *propname = zc->zc_value; |
2497 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2498 | boolean_t received = zc->zc_cookie; | |
2499 | zprop_source_t source = (received | |
2500 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2501 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2502 | ||
2503 | if (received) { | |
2504 | nvlist_t *dummy; | |
2505 | nvpair_t *pair; | |
2506 | zprop_type_t type; | |
2507 | int err; | |
2508 | ||
2509 | /* | |
2510 | * zfs_prop_set_special() expects properties in the form of an | |
2511 | * nvpair with type info. | |
2512 | */ | |
2513 | if (prop == ZPROP_INVAL) { | |
2514 | if (!zfs_prop_user(propname)) | |
2515 | return (EINVAL); | |
2516 | ||
2517 | type = PROP_TYPE_STRING; | |
2518 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2519 | prop == ZFS_PROP_VERSION) { | |
2520 | return (EINVAL); | |
2521 | } else { | |
2522 | type = zfs_prop_get_type(prop); | |
2523 | } | |
2524 | ||
2525 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2526 | ||
2527 | switch (type) { | |
2528 | case PROP_TYPE_STRING: | |
2529 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2530 | break; | |
2531 | case PROP_TYPE_NUMBER: | |
2532 | case PROP_TYPE_INDEX: | |
2533 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2534 | break; | |
2535 | default: | |
2536 | nvlist_free(dummy); | |
2537 | return (EINVAL); | |
2538 | } | |
2539 | ||
2540 | pair = nvlist_next_nvpair(dummy, NULL); | |
2541 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2542 | nvlist_free(dummy); | |
2543 | if (err != -1) | |
2544 | return (err); /* special property already handled */ | |
2545 | } else { | |
2546 | /* | |
2547 | * Only check this in the non-received case. We want to allow | |
2548 | * 'inherit -S' to revert non-inheritable properties like quota | |
2549 | * and reservation to the received or default values even though | |
2550 | * they are not considered inheritable. | |
2551 | */ | |
2552 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2553 | return (EINVAL); | |
2554 | } | |
2555 | ||
34dc7c2f | 2556 | /* the property name has been validated by zfs_secpolicy_inherit() */ |
428870ff | 2557 | return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL)); |
34dc7c2f BB |
2558 | } |
2559 | ||
2560 | static int | |
2561 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2562 | { | |
2563 | nvlist_t *props; | |
2564 | spa_t *spa; | |
2565 | int error; | |
428870ff | 2566 | nvpair_t *pair; |
34dc7c2f | 2567 | |
c65aa5b2 BB |
2568 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2569 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2570 | return (error); |
2571 | ||
d164b209 BB |
2572 | /* |
2573 | * If the only property is the configfile, then just do a spa_lookup() | |
2574 | * to handle the faulted case. | |
2575 | */ | |
428870ff BB |
2576 | pair = nvlist_next_nvpair(props, NULL); |
2577 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2578 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2579 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2580 | mutex_enter(&spa_namespace_lock); |
2581 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2582 | spa_configfile_set(spa, props, B_FALSE); | |
2583 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2584 | } | |
2585 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2586 | if (spa != NULL) { |
2587 | nvlist_free(props); | |
d164b209 | 2588 | return (0); |
428870ff | 2589 | } |
d164b209 BB |
2590 | } |
2591 | ||
34dc7c2f BB |
2592 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2593 | nvlist_free(props); | |
2594 | return (error); | |
2595 | } | |
2596 | ||
2597 | error = spa_prop_set(spa, props); | |
2598 | ||
2599 | nvlist_free(props); | |
2600 | spa_close(spa, FTAG); | |
2601 | ||
2602 | return (error); | |
2603 | } | |
2604 | ||
2605 | static int | |
2606 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2607 | { | |
2608 | spa_t *spa; | |
2609 | int error; | |
2610 | nvlist_t *nvp = NULL; | |
2611 | ||
d164b209 BB |
2612 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2613 | /* | |
2614 | * If the pool is faulted, there may be properties we can still | |
2615 | * get (such as altroot and cachefile), so attempt to get them | |
2616 | * anyway. | |
2617 | */ | |
2618 | mutex_enter(&spa_namespace_lock); | |
2619 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2620 | error = spa_prop_get(spa, &nvp); | |
2621 | mutex_exit(&spa_namespace_lock); | |
2622 | } else { | |
2623 | error = spa_prop_get(spa, &nvp); | |
2624 | spa_close(spa, FTAG); | |
2625 | } | |
34dc7c2f | 2626 | |
b8864a23 | 2627 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2628 | error = put_nvlist(zc, nvp); |
2629 | else | |
2630 | error = EFAULT; | |
2631 | ||
d164b209 | 2632 | nvlist_free(nvp); |
34dc7c2f BB |
2633 | return (error); |
2634 | } | |
2635 | ||
60101509 BB |
2636 | /* |
2637 | * inputs: | |
2638 | * zc_name name of volume | |
2639 | * | |
2640 | * outputs: none | |
2641 | */ | |
2642 | static int | |
2643 | zfs_ioc_create_minor(zfs_cmd_t *zc) | |
2644 | { | |
2645 | return (zvol_create_minor(zc->zc_name)); | |
2646 | } | |
2647 | ||
2648 | /* | |
2649 | * inputs: | |
2650 | * zc_name name of volume | |
2651 | * | |
2652 | * outputs: none | |
2653 | */ | |
2654 | static int | |
2655 | zfs_ioc_remove_minor(zfs_cmd_t *zc) | |
2656 | { | |
2657 | return (zvol_remove_minor(zc->zc_name)); | |
2658 | } | |
2659 | ||
34dc7c2f BB |
2660 | /* |
2661 | * inputs: | |
2662 | * zc_name name of filesystem | |
2663 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2664 | * zc_perm_action allow/unallow flag | |
2665 | * | |
2666 | * outputs: none | |
2667 | */ | |
2668 | static int | |
2669 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2670 | { | |
2671 | int error; | |
2672 | nvlist_t *fsaclnv = NULL; | |
2673 | ||
2674 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2675 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2676 | return (error); |
2677 | ||
2678 | /* | |
2679 | * Verify nvlist is constructed correctly | |
2680 | */ | |
2681 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2682 | nvlist_free(fsaclnv); | |
2683 | return (EINVAL); | |
2684 | } | |
2685 | ||
2686 | /* | |
2687 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2688 | * that user is allowed to hand out each permission in | |
2689 | * the nvlist(s) | |
2690 | */ | |
2691 | ||
2692 | error = secpolicy_zfs(CRED()); | |
2693 | if (error) { | |
2694 | if (zc->zc_perm_action == B_FALSE) { | |
2695 | error = dsl_deleg_can_allow(zc->zc_name, | |
2696 | fsaclnv, CRED()); | |
2697 | } else { | |
2698 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2699 | fsaclnv, CRED()); | |
2700 | } | |
2701 | } | |
2702 | ||
2703 | if (error == 0) | |
2704 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2705 | ||
2706 | nvlist_free(fsaclnv); | |
2707 | return (error); | |
2708 | } | |
2709 | ||
2710 | /* | |
2711 | * inputs: | |
2712 | * zc_name name of filesystem | |
2713 | * | |
2714 | * outputs: | |
2715 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2716 | */ | |
2717 | static int | |
2718 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2719 | { | |
2720 | nvlist_t *nvp; | |
2721 | int error; | |
2722 | ||
2723 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2724 | error = put_nvlist(zc, nvp); | |
2725 | nvlist_free(nvp); | |
2726 | } | |
2727 | ||
2728 | return (error); | |
2729 | } | |
2730 | ||
34dc7c2f BB |
2731 | /* ARGSUSED */ |
2732 | static void | |
2733 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2734 | { | |
2735 | zfs_creat_t *zct = arg; | |
2736 | ||
2737 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2738 | } | |
2739 | ||
2740 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2741 | ||
2742 | /* | |
2743 | * inputs: | |
b128c09f BB |
2744 | * createprops list of properties requested by creator |
2745 | * default_zplver zpl version to use if unspecified in createprops | |
2746 | * fuids_ok fuids allowed in this version of the spa? | |
2747 | * os parent objset pointer (NULL if root fs) | |
34dc7c2f BB |
2748 | * |
2749 | * outputs: | |
2750 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2751 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2752 | * |
2753 | * Determine the settings for utf8only, normalization and | |
2754 | * casesensitivity. Specific values may have been requested by the | |
2755 | * creator and/or we can inherit values from the parent dataset. If | |
2756 | * the file system is of too early a vintage, a creator can not | |
2757 | * request settings for these properties, even if the requested | |
2758 | * setting is the default value. We don't actually want to create dsl | |
2759 | * properties for these, so remove them from the source nvlist after | |
2760 | * processing. | |
2761 | */ | |
2762 | static int | |
9babb374 | 2763 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2764 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2765 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2766 | { |
34dc7c2f BB |
2767 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2768 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2769 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2770 | int error; |
34dc7c2f BB |
2771 | |
2772 | ASSERT(zplprops != NULL); | |
2773 | ||
34dc7c2f BB |
2774 | /* |
2775 | * Pull out creator prop choices, if any. | |
2776 | */ | |
2777 | if (createprops) { | |
b128c09f BB |
2778 | (void) nvlist_lookup_uint64(createprops, |
2779 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2780 | (void) nvlist_lookup_uint64(createprops, |
2781 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2782 | (void) nvlist_remove_all(createprops, | |
2783 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2784 | (void) nvlist_lookup_uint64(createprops, | |
2785 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2786 | (void) nvlist_remove_all(createprops, | |
2787 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2788 | (void) nvlist_lookup_uint64(createprops, | |
2789 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2790 | (void) nvlist_remove_all(createprops, | |
2791 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2792 | } | |
2793 | ||
2794 | /* | |
b128c09f BB |
2795 | * If the zpl version requested is whacky or the file system |
2796 | * or pool is version is too "young" to support normalization | |
2797 | * and the creator tried to set a value for one of the props, | |
2798 | * error out. | |
34dc7c2f | 2799 | */ |
b128c09f BB |
2800 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
2801 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 2802 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 2803 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 2804 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 2805 | sense != ZFS_PROP_UNDEFINED))) |
34dc7c2f BB |
2806 | return (ENOTSUP); |
2807 | ||
2808 | /* | |
2809 | * Put the version in the zplprops | |
2810 | */ | |
2811 | VERIFY(nvlist_add_uint64(zplprops, | |
2812 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
2813 | ||
b129c659 MM |
2814 | if (norm == ZFS_PROP_UNDEFINED && |
2815 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
2816 | return (error); | |
34dc7c2f BB |
2817 | VERIFY(nvlist_add_uint64(zplprops, |
2818 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
2819 | ||
2820 | /* | |
2821 | * If we're normalizing, names must always be valid UTF-8 strings. | |
2822 | */ | |
2823 | if (norm) | |
2824 | u8 = 1; | |
b129c659 MM |
2825 | if (u8 == ZFS_PROP_UNDEFINED && |
2826 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
2827 | return (error); | |
34dc7c2f BB |
2828 | VERIFY(nvlist_add_uint64(zplprops, |
2829 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
2830 | ||
b129c659 MM |
2831 | if (sense == ZFS_PROP_UNDEFINED && |
2832 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
2833 | return (error); | |
34dc7c2f BB |
2834 | VERIFY(nvlist_add_uint64(zplprops, |
2835 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
2836 | ||
2837 | if (is_ci) | |
2838 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
2839 | ||
34dc7c2f BB |
2840 | return (0); |
2841 | } | |
2842 | ||
b128c09f BB |
2843 | static int |
2844 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
2845 | nvlist_t *zplprops, boolean_t *is_ci) | |
2846 | { | |
428870ff | 2847 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
2848 | uint64_t zplver = ZPL_VERSION; |
2849 | objset_t *os = NULL; | |
2850 | char parentname[MAXNAMELEN]; | |
2851 | char *cp; | |
428870ff BB |
2852 | spa_t *spa; |
2853 | uint64_t spa_vers; | |
b128c09f BB |
2854 | int error; |
2855 | ||
2856 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
2857 | cp = strrchr(parentname, '/'); | |
2858 | ASSERT(cp != NULL); | |
2859 | cp[0] = '\0'; | |
2860 | ||
428870ff BB |
2861 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
2862 | return (error); | |
2863 | ||
2864 | spa_vers = spa_version(spa); | |
2865 | spa_close(spa, FTAG); | |
2866 | ||
2867 | zplver = zfs_zpl_version_map(spa_vers); | |
2868 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2869 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
2870 | |
2871 | /* | |
2872 | * Open parent object set so we can inherit zplprop values. | |
2873 | */ | |
428870ff | 2874 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
2875 | return (error); |
2876 | ||
428870ff | 2877 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 2878 | zplprops, is_ci); |
428870ff | 2879 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
2880 | return (error); |
2881 | } | |
2882 | ||
2883 | static int | |
2884 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
2885 | nvlist_t *zplprops, boolean_t *is_ci) | |
2886 | { | |
428870ff BB |
2887 | boolean_t fuids_ok; |
2888 | boolean_t sa_ok; | |
b128c09f BB |
2889 | uint64_t zplver = ZPL_VERSION; |
2890 | int error; | |
2891 | ||
428870ff BB |
2892 | zplver = zfs_zpl_version_map(spa_vers); |
2893 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2894 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 2895 | |
428870ff BB |
2896 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
2897 | createprops, zplprops, is_ci); | |
b128c09f BB |
2898 | return (error); |
2899 | } | |
2900 | ||
34dc7c2f BB |
2901 | /* |
2902 | * inputs: | |
2903 | * zc_objset_type type of objset to create (fs vs zvol) | |
2904 | * zc_name name of new objset | |
2905 | * zc_value name of snapshot to clone from (may be empty) | |
2906 | * zc_nvlist_src{_size} nvlist of properties to apply | |
2907 | * | |
2908 | * outputs: none | |
2909 | */ | |
2910 | static int | |
2911 | zfs_ioc_create(zfs_cmd_t *zc) | |
2912 | { | |
2913 | objset_t *clone; | |
2914 | int error = 0; | |
2915 | zfs_creat_t zct; | |
2916 | nvlist_t *nvprops = NULL; | |
2917 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
2918 | dmu_objset_type_t type = zc->zc_objset_type; | |
2919 | ||
2920 | switch (type) { | |
2921 | ||
2922 | case DMU_OST_ZFS: | |
2923 | cbfunc = zfs_create_cb; | |
2924 | break; | |
2925 | ||
2926 | case DMU_OST_ZVOL: | |
2927 | cbfunc = zvol_create_cb; | |
2928 | break; | |
2929 | ||
2930 | default: | |
2931 | cbfunc = NULL; | |
2932 | break; | |
2933 | } | |
2934 | if (strchr(zc->zc_name, '@') || | |
2935 | strchr(zc->zc_name, '%')) | |
2936 | return (EINVAL); | |
2937 | ||
b8864a23 | 2938 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 2939 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 2940 | zc->zc_iflags, &nvprops)) != 0) |
34dc7c2f BB |
2941 | return (error); |
2942 | ||
2943 | zct.zct_zplprops = NULL; | |
2944 | zct.zct_props = nvprops; | |
2945 | ||
2946 | if (zc->zc_value[0] != '\0') { | |
2947 | /* | |
2948 | * We're creating a clone of an existing snapshot. | |
2949 | */ | |
2950 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
2951 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { | |
2952 | nvlist_free(nvprops); | |
2953 | return (EINVAL); | |
2954 | } | |
2955 | ||
428870ff | 2956 | error = dmu_objset_hold(zc->zc_value, FTAG, &clone); |
34dc7c2f BB |
2957 | if (error) { |
2958 | nvlist_free(nvprops); | |
2959 | return (error); | |
2960 | } | |
2961 | ||
428870ff BB |
2962 | error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0); |
2963 | dmu_objset_rele(clone, FTAG); | |
34dc7c2f | 2964 | if (error) { |
34dc7c2f BB |
2965 | nvlist_free(nvprops); |
2966 | return (error); | |
2967 | } | |
34dc7c2f BB |
2968 | } else { |
2969 | boolean_t is_insensitive = B_FALSE; | |
2970 | ||
2971 | if (cbfunc == NULL) { | |
2972 | nvlist_free(nvprops); | |
2973 | return (EINVAL); | |
2974 | } | |
2975 | ||
2976 | if (type == DMU_OST_ZVOL) { | |
2977 | uint64_t volsize, volblocksize; | |
2978 | ||
2979 | if (nvprops == NULL || | |
2980 | nvlist_lookup_uint64(nvprops, | |
2981 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
2982 | &volsize) != 0) { | |
2983 | nvlist_free(nvprops); | |
2984 | return (EINVAL); | |
2985 | } | |
2986 | ||
2987 | if ((error = nvlist_lookup_uint64(nvprops, | |
2988 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
2989 | &volblocksize)) != 0 && error != ENOENT) { | |
2990 | nvlist_free(nvprops); | |
2991 | return (EINVAL); | |
2992 | } | |
2993 | ||
2994 | if (error != 0) | |
2995 | volblocksize = zfs_prop_default_numeric( | |
2996 | ZFS_PROP_VOLBLOCKSIZE); | |
2997 | ||
2998 | if ((error = zvol_check_volblocksize( | |
2999 | volblocksize)) != 0 || | |
3000 | (error = zvol_check_volsize(volsize, | |
3001 | volblocksize)) != 0) { | |
3002 | nvlist_free(nvprops); | |
3003 | return (error); | |
3004 | } | |
3005 | } else if (type == DMU_OST_ZFS) { | |
34dc7c2f BB |
3006 | int error; |
3007 | ||
34dc7c2f BB |
3008 | /* |
3009 | * We have to have normalization and | |
3010 | * case-folding flags correct when we do the | |
3011 | * file system creation, so go figure them out | |
3012 | * now. | |
3013 | */ | |
3014 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3015 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3016 | error = zfs_fill_zplprops(zc->zc_name, nvprops, | |
b128c09f | 3017 | zct.zct_zplprops, &is_insensitive); |
34dc7c2f BB |
3018 | if (error != 0) { |
3019 | nvlist_free(nvprops); | |
3020 | nvlist_free(zct.zct_zplprops); | |
3021 | return (error); | |
3022 | } | |
3023 | } | |
428870ff | 3024 | error = dmu_objset_create(zc->zc_name, type, |
34dc7c2f BB |
3025 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); |
3026 | nvlist_free(zct.zct_zplprops); | |
3027 | } | |
3028 | ||
3029 | /* | |
3030 | * It would be nice to do this atomically. | |
3031 | */ | |
3032 | if (error == 0) { | |
428870ff BB |
3033 | error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL, |
3034 | nvprops, NULL); | |
3035 | if (error != 0) | |
45d1cae3 | 3036 | (void) dmu_objset_destroy(zc->zc_name, B_FALSE); |
34dc7c2f BB |
3037 | } |
3038 | nvlist_free(nvprops); | |
3039 | return (error); | |
3040 | } | |
3041 | ||
3042 | /* | |
3043 | * inputs: | |
3044 | * zc_name name of filesystem | |
3045 | * zc_value short name of snapshot | |
3046 | * zc_cookie recursive flag | |
9babb374 | 3047 | * zc_nvlist_src[_size] property list |
34dc7c2f | 3048 | * |
428870ff BB |
3049 | * outputs: |
3050 | * zc_value short snapname (i.e. part after the '@') | |
34dc7c2f BB |
3051 | */ |
3052 | static int | |
3053 | zfs_ioc_snapshot(zfs_cmd_t *zc) | |
3054 | { | |
b128c09f BB |
3055 | nvlist_t *nvprops = NULL; |
3056 | int error; | |
3057 | boolean_t recursive = zc->zc_cookie; | |
3058 | ||
34dc7c2f BB |
3059 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) |
3060 | return (EINVAL); | |
b128c09f | 3061 | |
b8864a23 | 3062 | if (zc->zc_nvlist_src != 0 && |
b128c09f | 3063 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3064 | zc->zc_iflags, &nvprops)) != 0) |
b128c09f BB |
3065 | return (error); |
3066 | ||
9babb374 BB |
3067 | error = zfs_check_userprops(zc->zc_name, nvprops); |
3068 | if (error) | |
3069 | goto out; | |
b128c09f | 3070 | |
428870ff | 3071 | if (!nvlist_empty(nvprops) && |
9babb374 BB |
3072 | zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) { |
3073 | error = ENOTSUP; | |
3074 | goto out; | |
b128c09f | 3075 | } |
9babb374 | 3076 | |
572e2857 BB |
3077 | error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, NULL, |
3078 | nvprops, recursive, B_FALSE, -1); | |
9babb374 BB |
3079 | |
3080 | out: | |
b128c09f BB |
3081 | nvlist_free(nvprops); |
3082 | return (error); | |
34dc7c2f BB |
3083 | } |
3084 | ||
ebe7e575 BB |
3085 | /* |
3086 | * inputs: | |
3087 | * name dataset name, or when 'arg == NULL' the full snapshot name | |
3088 | * arg short snapshot name (i.e. part after the '@') | |
3089 | */ | |
34dc7c2f | 3090 | int |
428870ff | 3091 | zfs_unmount_snap(const char *name, void *arg) |
34dc7c2f | 3092 | { |
ebe7e575 BB |
3093 | zfs_sb_t *zsb = NULL; |
3094 | char *dsname; | |
3095 | char *snapname; | |
3096 | char *fullname; | |
3097 | char *ptr; | |
3098 | int error; | |
34dc7c2f | 3099 | |
b128c09f | 3100 | if (arg) { |
ebe7e575 BB |
3101 | dsname = strdup(name); |
3102 | snapname = strdup(arg); | |
3103 | } else { | |
3104 | ptr = strchr(name, '@'); | |
3105 | if (ptr) { | |
3106 | dsname = strdup(name); | |
3107 | dsname[ptr - name] = '\0'; | |
3108 | snapname = strdup(ptr + 1); | |
3109 | } else { | |
3110 | return (0); | |
3111 | } | |
34dc7c2f BB |
3112 | } |
3113 | ||
ebe7e575 | 3114 | fullname = kmem_asprintf("%s@%s", dsname, snapname); |
34dc7c2f | 3115 | |
ebe7e575 BB |
3116 | error = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
3117 | if (error == 0) { | |
3118 | error = zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE); | |
3119 | zfs_sb_rele(zsb, FTAG); | |
3120 | ||
3121 | /* Allow ENOENT for consistency with upstream */ | |
3122 | if (error == ENOENT) | |
3123 | error = 0; | |
34dc7c2f | 3124 | } |
ebe7e575 BB |
3125 | |
3126 | strfree(dsname); | |
3127 | strfree(snapname); | |
3128 | strfree(fullname); | |
3129 | ||
3130 | return (error); | |
34dc7c2f BB |
3131 | } |
3132 | ||
3133 | /* | |
3134 | * inputs: | |
330d06f9 MA |
3135 | * zc_name name of filesystem, snaps must be under it |
3136 | * zc_nvlist_src[_size] full names of snapshots to destroy | |
45d1cae3 | 3137 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f | 3138 | * |
330d06f9 MA |
3139 | * outputs: |
3140 | * zc_name on failure, name of failed snapshot | |
34dc7c2f BB |
3141 | */ |
3142 | static int | |
330d06f9 | 3143 | zfs_ioc_destroy_snaps_nvl(zfs_cmd_t *zc) |
34dc7c2f | 3144 | { |
330d06f9 MA |
3145 | int err, len; |
3146 | nvlist_t *nvl; | |
3147 | nvpair_t *pair; | |
34dc7c2f | 3148 | |
330d06f9 MA |
3149 | if ((err = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
3150 | zc->zc_iflags, &nvl)) != 0) | |
34dc7c2f | 3151 | return (err); |
330d06f9 MA |
3152 | |
3153 | len = strlen(zc->zc_name); | |
3154 | for (pair = nvlist_next_nvpair(nvl, NULL); pair != NULL; | |
3155 | pair = nvlist_next_nvpair(nvl, pair)) { | |
3156 | const char *name = nvpair_name(pair); | |
3157 | /* | |
3158 | * The snap name must be underneath the zc_name. This ensures | |
3159 | * that our permission checks were legitimate. | |
3160 | */ | |
3161 | if (strncmp(zc->zc_name, name, len) != 0 || | |
3162 | (name[len] != '@' && name[len] != '/')) { | |
3163 | nvlist_free(nvl); | |
3164 | return (EINVAL); | |
3165 | } | |
3166 | ||
3167 | (void) zfs_unmount_snap(name, NULL); | |
4ca9a436 | 3168 | (void) zvol_remove_minor(name); |
330d06f9 MA |
3169 | } |
3170 | ||
3171 | err = dmu_snapshots_destroy_nvl(nvl, zc->zc_defer_destroy, | |
3172 | zc->zc_name); | |
3173 | nvlist_free(nvl); | |
3174 | return (err); | |
34dc7c2f BB |
3175 | } |
3176 | ||
3177 | /* | |
3178 | * inputs: | |
3179 | * zc_name name of dataset to destroy | |
3180 | * zc_objset_type type of objset | |
45d1cae3 | 3181 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3182 | * |
3183 | * outputs: none | |
3184 | */ | |
3185 | static int | |
3186 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3187 | { | |
428870ff | 3188 | int err; |
34dc7c2f | 3189 | if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { |
428870ff | 3190 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
3191 | if (err) |
3192 | return (err); | |
3193 | } | |
3194 | ||
428870ff BB |
3195 | err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy); |
3196 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) | |
3197 | (void) zvol_remove_minor(zc->zc_name); | |
3198 | return (err); | |
34dc7c2f BB |
3199 | } |
3200 | ||
3201 | /* | |
3202 | * inputs: | |
3203 | * zc_name name of dataset to rollback (to most recent snapshot) | |
3204 | * | |
3205 | * outputs: none | |
3206 | */ | |
3207 | static int | |
3208 | zfs_ioc_rollback(zfs_cmd_t *zc) | |
3209 | { | |
428870ff | 3210 | dsl_dataset_t *ds, *clone; |
34dc7c2f | 3211 | int error; |
3558fd73 | 3212 | zfs_sb_t *zsb; |
428870ff BB |
3213 | char *clone_name; |
3214 | ||
3215 | error = dsl_dataset_hold(zc->zc_name, FTAG, &ds); | |
3216 | if (error) | |
3217 | return (error); | |
3218 | ||
3219 | /* must not be a snapshot */ | |
3220 | if (dsl_dataset_is_snapshot(ds)) { | |
3221 | dsl_dataset_rele(ds, FTAG); | |
3222 | return (EINVAL); | |
3223 | } | |
3224 | ||
3225 | /* must have a most recent snapshot */ | |
3226 | if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) { | |
3227 | dsl_dataset_rele(ds, FTAG); | |
3228 | return (EINVAL); | |
3229 | } | |
34dc7c2f BB |
3230 | |
3231 | /* | |
428870ff | 3232 | * Create clone of most recent snapshot. |
34dc7c2f | 3233 | */ |
428870ff BB |
3234 | clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name); |
3235 | error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT); | |
34dc7c2f | 3236 | if (error) |
428870ff | 3237 | goto out; |
34dc7c2f | 3238 | |
428870ff BB |
3239 | error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone); |
3240 | if (error) | |
3241 | goto out; | |
34dc7c2f | 3242 | |
428870ff BB |
3243 | /* |
3244 | * Do clone swap. | |
3245 | */ | |
3558fd73 BB |
3246 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
3247 | error = zfs_suspend_fs(zsb); | |
34dc7c2f BB |
3248 | if (error == 0) { |
3249 | int resume_err; | |
3250 | ||
428870ff BB |
3251 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3252 | error = dsl_dataset_clone_swap(clone, ds, | |
3253 | B_TRUE); | |
3254 | dsl_dataset_disown(ds, FTAG); | |
3255 | ds = NULL; | |
3256 | } else { | |
3257 | error = EBUSY; | |
3258 | } | |
3558fd73 | 3259 | resume_err = zfs_resume_fs(zsb, zc->zc_name); |
34dc7c2f | 3260 | error = error ? error : resume_err; |
34dc7c2f | 3261 | } |
2cf7f52b | 3262 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3263 | } else { |
428870ff BB |
3264 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3265 | error = dsl_dataset_clone_swap(clone, ds, B_TRUE); | |
3266 | dsl_dataset_disown(ds, FTAG); | |
3267 | ds = NULL; | |
3268 | } else { | |
3269 | error = EBUSY; | |
3270 | } | |
34dc7c2f | 3271 | } |
34dc7c2f | 3272 | |
428870ff BB |
3273 | /* |
3274 | * Destroy clone (which also closes it). | |
3275 | */ | |
3276 | (void) dsl_dataset_destroy(clone, FTAG, B_FALSE); | |
3277 | ||
3278 | out: | |
3279 | strfree(clone_name); | |
3280 | if (ds) | |
3281 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3282 | return (error); |
3283 | } | |
3284 | ||
3285 | /* | |
3286 | * inputs: | |
3287 | * zc_name old name of dataset | |
3288 | * zc_value new name of dataset | |
3289 | * zc_cookie recursive flag (only valid for snapshots) | |
3290 | * | |
3291 | * outputs: none | |
3292 | */ | |
3293 | static int | |
3294 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3295 | { | |
3296 | boolean_t recursive = zc->zc_cookie & 1; | |
95c73795 | 3297 | int err; |
34dc7c2f BB |
3298 | |
3299 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3300 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3301 | strchr(zc->zc_value, '%')) | |
3302 | return (EINVAL); | |
3303 | ||
3304 | /* | |
3305 | * Unmount snapshot unless we're doing a recursive rename, | |
3306 | * in which case the dataset code figures out which snapshots | |
3307 | * to unmount. | |
3308 | */ | |
3309 | if (!recursive && strchr(zc->zc_name, '@') != NULL && | |
3310 | zc->zc_objset_type == DMU_OST_ZFS) { | |
95c73795 | 3311 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
3312 | if (err) |
3313 | return (err); | |
3314 | } | |
95c73795 BB |
3315 | |
3316 | err = dmu_objset_rename(zc->zc_name, zc->zc_value, recursive); | |
3317 | if ((err == 0) && (zc->zc_objset_type == DMU_OST_ZVOL)) { | |
428870ff | 3318 | (void) zvol_remove_minor(zc->zc_name); |
95c73795 BB |
3319 | (void) zvol_create_minor(zc->zc_value); |
3320 | } | |
3321 | ||
3322 | return (err); | |
34dc7c2f BB |
3323 | } |
3324 | ||
428870ff BB |
3325 | static int |
3326 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3327 | { | |
3328 | const char *propname = nvpair_name(pair); | |
3329 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3330 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3331 | uint64_t intval; | |
3332 | int err; | |
3333 | ||
3334 | if (prop == ZPROP_INVAL) { | |
3335 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3336 | if ((err = zfs_secpolicy_write_perms(dsname, |
3337 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3338 | return (err); |
3339 | return (0); | |
3340 | } | |
3341 | ||
3342 | if (!issnap && zfs_prop_userquota(propname)) { | |
3343 | const char *perm = NULL; | |
3344 | const char *uq_prefix = | |
3345 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3346 | const char *gq_prefix = | |
3347 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3348 | ||
3349 | if (strncmp(propname, uq_prefix, | |
3350 | strlen(uq_prefix)) == 0) { | |
3351 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3352 | } else if (strncmp(propname, gq_prefix, | |
3353 | strlen(gq_prefix)) == 0) { | |
3354 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3355 | } else { | |
3356 | /* USERUSED and GROUPUSED are read-only */ | |
3357 | return (EINVAL); | |
3358 | } | |
3359 | ||
c65aa5b2 | 3360 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3361 | return (err); |
3362 | return (0); | |
3363 | } | |
3364 | ||
3365 | return (EINVAL); | |
3366 | } | |
3367 | ||
3368 | if (issnap) | |
3369 | return (EINVAL); | |
3370 | ||
3371 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3372 | /* | |
3373 | * dsl_prop_get_all_impl() returns properties in this | |
3374 | * format. | |
3375 | */ | |
3376 | nvlist_t *attrs; | |
3377 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3378 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3379 | &pair) == 0); | |
3380 | } | |
3381 | ||
3382 | /* | |
3383 | * Check that this value is valid for this pool version | |
3384 | */ | |
3385 | switch (prop) { | |
3386 | case ZFS_PROP_COMPRESSION: | |
3387 | /* | |
3388 | * If the user specified gzip compression, make sure | |
3389 | * the SPA supports it. We ignore any errors here since | |
3390 | * we'll catch them later. | |
3391 | */ | |
3392 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3393 | nvpair_value_uint64(pair, &intval) == 0) { | |
3394 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3395 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3396 | zfs_earlier_version(dsname, | |
3397 | SPA_VERSION_GZIP_COMPRESSION)) { | |
3398 | return (ENOTSUP); | |
3399 | } | |
3400 | ||
3401 | if (intval == ZIO_COMPRESS_ZLE && | |
3402 | zfs_earlier_version(dsname, | |
3403 | SPA_VERSION_ZLE_COMPRESSION)) | |
3404 | return (ENOTSUP); | |
3405 | ||
3406 | /* | |
3407 | * If this is a bootable dataset then | |
3408 | * verify that the compression algorithm | |
3409 | * is supported for booting. We must return | |
3410 | * something other than ENOTSUP since it | |
3411 | * implies a downrev pool version. | |
3412 | */ | |
3413 | if (zfs_is_bootfs(dsname) && | |
3414 | !BOOTFS_COMPRESS_VALID(intval)) { | |
3415 | return (ERANGE); | |
3416 | } | |
3417 | } | |
3418 | break; | |
3419 | ||
3420 | case ZFS_PROP_COPIES: | |
3421 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
3422 | return (ENOTSUP); | |
3423 | break; | |
3424 | ||
3425 | case ZFS_PROP_DEDUP: | |
3426 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
3427 | return (ENOTSUP); | |
3428 | break; | |
3429 | ||
3430 | case ZFS_PROP_SHARESMB: | |
3431 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
3432 | return (ENOTSUP); | |
3433 | break; | |
3434 | ||
3435 | case ZFS_PROP_ACLINHERIT: | |
3436 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3437 | nvpair_value_uint64(pair, &intval) == 0) { | |
3438 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3439 | zfs_earlier_version(dsname, | |
3440 | SPA_VERSION_PASSTHROUGH_X)) | |
3441 | return (ENOTSUP); | |
3442 | } | |
3443 | break; | |
e75c13c3 BB |
3444 | default: |
3445 | break; | |
428870ff BB |
3446 | } |
3447 | ||
3448 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3449 | } | |
3450 | ||
3451 | /* | |
3452 | * Removes properties from the given props list that fail permission checks | |
3453 | * needed to clear them and to restore them in case of a receive error. For each | |
3454 | * property, make sure we have both set and inherit permissions. | |
3455 | * | |
3456 | * Returns the first error encountered if any permission checks fail. If the | |
3457 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3458 | * of all the properties that failed a permission check along with the | |
3459 | * corresponding error numbers. The caller is responsible for freeing the | |
3460 | * returned errlist. | |
3461 | * | |
3462 | * If every property checks out successfully, zero is returned and the list | |
3463 | * pointed at by errlist is NULL. | |
3464 | */ | |
3465 | static int | |
3466 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3467 | { |
3468 | zfs_cmd_t *zc; | |
428870ff BB |
3469 | nvpair_t *pair, *next_pair; |
3470 | nvlist_t *errors; | |
3471 | int err, rv = 0; | |
b128c09f BB |
3472 | |
3473 | if (props == NULL) | |
428870ff BB |
3474 | return (0); |
3475 | ||
3476 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3477 | ||
d247f2a3 | 3478 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
b128c09f | 3479 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3480 | pair = nvlist_next_nvpair(props, NULL); |
3481 | while (pair != NULL) { | |
3482 | next_pair = nvlist_next_nvpair(props, pair); | |
3483 | ||
3484 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3485 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
3486 | (err = zfs_secpolicy_inherit(zc, CRED())) != 0) { | |
3487 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); | |
3488 | VERIFY(nvlist_add_int32(errors, | |
3489 | zc->zc_value, err) == 0); | |
3490 | } | |
3491 | pair = next_pair; | |
b128c09f BB |
3492 | } |
3493 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3494 | |
3495 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3496 | nvlist_free(errors); | |
3497 | errors = NULL; | |
3498 | } else { | |
3499 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3500 | } | |
3501 | ||
3502 | if (errlist == NULL) | |
3503 | nvlist_free(errors); | |
3504 | else | |
3505 | *errlist = errors; | |
3506 | ||
3507 | return (rv); | |
3508 | } | |
3509 | ||
3510 | static boolean_t | |
3511 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3512 | { | |
3513 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3514 | /* dsl_prop_get_all_impl() format */ | |
3515 | nvlist_t *attrs; | |
3516 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3517 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3518 | &p1) == 0); | |
3519 | } | |
3520 | ||
3521 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3522 | nvlist_t *attrs; | |
3523 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3524 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3525 | &p2) == 0); | |
3526 | } | |
3527 | ||
3528 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3529 | return (B_FALSE); | |
3530 | ||
3531 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3532 | char *valstr1, *valstr2; | |
3533 | ||
3534 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3535 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3536 | return (strcmp(valstr1, valstr2) == 0); | |
3537 | } else { | |
3538 | uint64_t intval1, intval2; | |
3539 | ||
3540 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3541 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3542 | return (intval1 == intval2); | |
3543 | } | |
b128c09f BB |
3544 | } |
3545 | ||
428870ff BB |
3546 | /* |
3547 | * Remove properties from props if they are not going to change (as determined | |
3548 | * by comparison with origprops). Remove them from origprops as well, since we | |
3549 | * do not need to clear or restore properties that won't change. | |
3550 | */ | |
3551 | static void | |
3552 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3553 | { | |
3554 | nvpair_t *pair, *next_pair; | |
3555 | ||
3556 | if (origprops == NULL) | |
3557 | return; /* all props need to be received */ | |
3558 | ||
3559 | pair = nvlist_next_nvpair(props, NULL); | |
3560 | while (pair != NULL) { | |
3561 | const char *propname = nvpair_name(pair); | |
3562 | nvpair_t *match; | |
3563 | ||
3564 | next_pair = nvlist_next_nvpair(props, pair); | |
3565 | ||
3566 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3567 | &match) != 0) || !propval_equals(pair, match)) | |
3568 | goto next; /* need to set received value */ | |
3569 | ||
3570 | /* don't clear the existing received value */ | |
3571 | (void) nvlist_remove_nvpair(origprops, match); | |
3572 | /* don't bother receiving the property */ | |
3573 | (void) nvlist_remove_nvpair(props, pair); | |
3574 | next: | |
3575 | pair = next_pair; | |
3576 | } | |
3577 | } | |
3578 | ||
3579 | #ifdef DEBUG | |
3580 | static boolean_t zfs_ioc_recv_inject_err; | |
3581 | #endif | |
3582 | ||
34dc7c2f BB |
3583 | /* |
3584 | * inputs: | |
3585 | * zc_name name of containing filesystem | |
3586 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3587 | * zc_value name of snapshot to create | |
3588 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3589 | * zc_cookie file descriptor to recv from | |
3590 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3591 | * zc_guid force flag | |
572e2857 BB |
3592 | * zc_cleanup_fd cleanup-on-exit file descriptor |
3593 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
3594 | * |
3595 | * outputs: | |
3596 | * zc_cookie number of bytes read | |
428870ff BB |
3597 | * zc_nvlist_dst{_size} error for each unapplied received property |
3598 | * zc_obj zprop_errflags_t | |
572e2857 | 3599 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
3600 | */ |
3601 | static int | |
3602 | zfs_ioc_recv(zfs_cmd_t *zc) | |
3603 | { | |
3604 | file_t *fp; | |
3605 | objset_t *os; | |
3606 | dmu_recv_cookie_t drc; | |
34dc7c2f | 3607 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
3608 | int fd; |
3609 | int error = 0; | |
3610 | int props_error = 0; | |
3611 | nvlist_t *errors; | |
34dc7c2f | 3612 | offset_t off; |
428870ff BB |
3613 | nvlist_t *props = NULL; /* sent properties */ |
3614 | nvlist_t *origprops = NULL; /* existing properties */ | |
34dc7c2f BB |
3615 | objset_t *origin = NULL; |
3616 | char *tosnap; | |
3617 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 3618 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
3619 | |
3620 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3621 | strchr(zc->zc_value, '@') == NULL || | |
3622 | strchr(zc->zc_value, '%')) | |
3623 | return (EINVAL); | |
3624 | ||
3625 | (void) strcpy(tofs, zc->zc_value); | |
3626 | tosnap = strchr(tofs, '@'); | |
428870ff | 3627 | *tosnap++ = '\0'; |
34dc7c2f | 3628 | |
b8864a23 | 3629 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 3630 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3631 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
3632 | return (error); |
3633 | ||
3634 | fd = zc->zc_cookie; | |
3635 | fp = getf(fd); | |
3636 | if (fp == NULL) { | |
3637 | nvlist_free(props); | |
3638 | return (EBADF); | |
3639 | } | |
3640 | ||
428870ff BB |
3641 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
3642 | ||
3643 | if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) { | |
3644 | if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) && | |
3645 | !dsl_prop_get_hasrecvd(os)) { | |
3646 | first_recvd_props = B_TRUE; | |
3647 | } | |
3648 | ||
b128c09f | 3649 | /* |
428870ff BB |
3650 | * If new received properties are supplied, they are to |
3651 | * completely replace the existing received properties, so stash | |
3652 | * away the existing ones. | |
b128c09f | 3653 | */ |
428870ff BB |
3654 | if (dsl_prop_get_received(os, &origprops) == 0) { |
3655 | nvlist_t *errlist = NULL; | |
3656 | /* | |
3657 | * Don't bother writing a property if its value won't | |
3658 | * change (and avoid the unnecessary security checks). | |
3659 | * | |
3660 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
3661 | * special case where we blow away all local properties | |
3662 | * regardless. | |
3663 | */ | |
3664 | if (!first_recvd_props) | |
3665 | props_reduce(props, origprops); | |
3666 | if (zfs_check_clearable(tofs, origprops, | |
3667 | &errlist) != 0) | |
3668 | (void) nvlist_merge(errors, errlist, 0); | |
3669 | nvlist_free(errlist); | |
3670 | } | |
b128c09f | 3671 | |
428870ff | 3672 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
3673 | } |
3674 | ||
3675 | if (zc->zc_string[0]) { | |
428870ff | 3676 | error = dmu_objset_hold(zc->zc_string, FTAG, &origin); |
b128c09f BB |
3677 | if (error) |
3678 | goto out; | |
34dc7c2f BB |
3679 | } |
3680 | ||
428870ff BB |
3681 | error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds, |
3682 | &zc->zc_begin_record, force, origin, &drc); | |
34dc7c2f | 3683 | if (origin) |
428870ff | 3684 | dmu_objset_rele(origin, FTAG); |
b128c09f BB |
3685 | if (error) |
3686 | goto out; | |
34dc7c2f BB |
3687 | |
3688 | /* | |
428870ff BB |
3689 | * Set properties before we receive the stream so that they are applied |
3690 | * to the new data. Note that we must call dmu_recv_stream() if | |
3691 | * dmu_recv_begin() succeeds. | |
34dc7c2f BB |
3692 | */ |
3693 | if (props) { | |
428870ff BB |
3694 | nvlist_t *errlist; |
3695 | ||
3696 | if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) { | |
3697 | if (drc.drc_newfs) { | |
3698 | if (spa_version(os->os_spa) >= | |
3699 | SPA_VERSION_RECVD_PROPS) | |
3700 | first_recvd_props = B_TRUE; | |
3701 | } else if (origprops != NULL) { | |
3702 | if (clear_received_props(os, tofs, origprops, | |
3703 | first_recvd_props ? NULL : props) != 0) | |
3704 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3705 | } else { | |
3706 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3707 | } | |
3708 | dsl_prop_set_hasrecvd(os); | |
3709 | } else if (!drc.drc_newfs) { | |
3710 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3711 | } | |
3712 | ||
3713 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
3714 | props, &errlist); | |
3715 | (void) nvlist_merge(errors, errlist, 0); | |
3716 | nvlist_free(errlist); | |
3717 | } | |
3718 | ||
3719 | if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) { | |
b128c09f | 3720 | /* |
428870ff BB |
3721 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
3722 | * size or supplied an invalid address. | |
b128c09f | 3723 | */ |
428870ff | 3724 | props_error = EINVAL; |
34dc7c2f BB |
3725 | } |
3726 | ||
34dc7c2f | 3727 | off = fp->f_offset; |
572e2857 BB |
3728 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
3729 | &zc->zc_action_handle); | |
34dc7c2f | 3730 | |
45d1cae3 | 3731 | if (error == 0) { |
3558fd73 | 3732 | zfs_sb_t *zsb = NULL; |
b128c09f | 3733 | |
3558fd73 | 3734 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
3735 | /* online recv */ |
3736 | int end_err; | |
b128c09f | 3737 | |
3558fd73 | 3738 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
3739 | /* |
3740 | * If the suspend fails, then the recv_end will | |
3741 | * likely also fail, and clean up after itself. | |
3742 | */ | |
3743 | end_err = dmu_recv_end(&drc); | |
428870ff | 3744 | if (error == 0) |
3558fd73 | 3745 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 3746 | error = error ? error : end_err; |
2cf7f52b | 3747 | deactivate_super(zsb->z_sb); |
b128c09f | 3748 | } else { |
45d1cae3 | 3749 | error = dmu_recv_end(&drc); |
34dc7c2f | 3750 | } |
34dc7c2f BB |
3751 | } |
3752 | ||
3753 | zc->zc_cookie = off - fp->f_offset; | |
3754 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3755 | fp->f_offset = off; | |
3756 | ||
428870ff BB |
3757 | #ifdef DEBUG |
3758 | if (zfs_ioc_recv_inject_err) { | |
3759 | zfs_ioc_recv_inject_err = B_FALSE; | |
3760 | error = 1; | |
3761 | } | |
3762 | #endif | |
b128c09f BB |
3763 | /* |
3764 | * On error, restore the original props. | |
3765 | */ | |
3766 | if (error && props) { | |
428870ff BB |
3767 | if (dmu_objset_hold(tofs, FTAG, &os) == 0) { |
3768 | if (clear_received_props(os, tofs, props, NULL) != 0) { | |
3769 | /* | |
3770 | * We failed to clear the received properties. | |
3771 | * Since we may have left a $recvd value on the | |
3772 | * system, we can't clear the $hasrecvd flag. | |
3773 | */ | |
3774 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3775 | } else if (first_recvd_props) { | |
3776 | dsl_prop_unset_hasrecvd(os); | |
3777 | } | |
3778 | dmu_objset_rele(os, FTAG); | |
3779 | } else if (!drc.drc_newfs) { | |
3780 | /* We failed to clear the received properties. */ | |
3781 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3782 | } | |
3783 | ||
3784 | if (origprops == NULL && !drc.drc_newfs) { | |
3785 | /* We failed to stash the original properties. */ | |
3786 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3787 | } | |
3788 | ||
3789 | /* | |
3790 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
3791 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
3792 | * explictly if we're restoring local properties cleared in the | |
3793 | * first new-style receive. | |
3794 | */ | |
3795 | if (origprops != NULL && | |
3796 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
3797 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
3798 | origprops, NULL) != 0) { | |
3799 | /* | |
3800 | * We stashed the original properties but failed to | |
3801 | * restore them. | |
3802 | */ | |
3803 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3804 | } | |
b128c09f BB |
3805 | } |
3806 | out: | |
b128c09f BB |
3807 | nvlist_free(props); |
3808 | nvlist_free(origprops); | |
428870ff | 3809 | nvlist_free(errors); |
34dc7c2f | 3810 | releasef(fd); |
428870ff BB |
3811 | |
3812 | if (error == 0) | |
3813 | error = props_error; | |
3814 | ||
34dc7c2f BB |
3815 | return (error); |
3816 | } | |
3817 | ||
3818 | /* | |
3819 | * inputs: | |
3820 | * zc_name name of snapshot to send | |
34dc7c2f | 3821 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
3822 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
3823 | * zc_sendobj objsetid of snapshot to send | |
3824 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
3825 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
3826 | * output size in zc_objset_type. | |
34dc7c2f BB |
3827 | * |
3828 | * outputs: none | |
3829 | */ | |
3830 | static int | |
3831 | zfs_ioc_send(zfs_cmd_t *zc) | |
3832 | { | |
3833 | objset_t *fromsnap = NULL; | |
3834 | objset_t *tosnap; | |
34dc7c2f BB |
3835 | int error; |
3836 | offset_t off; | |
572e2857 BB |
3837 | dsl_dataset_t *ds; |
3838 | dsl_dataset_t *dsfrom = NULL; | |
3839 | spa_t *spa; | |
3840 | dsl_pool_t *dp; | |
330d06f9 | 3841 | boolean_t estimate = (zc->zc_guid != 0); |
34dc7c2f | 3842 | |
572e2857 | 3843 | error = spa_open(zc->zc_name, &spa, FTAG); |
34dc7c2f BB |
3844 | if (error) |
3845 | return (error); | |
3846 | ||
572e2857 BB |
3847 | dp = spa_get_dsl(spa); |
3848 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3849 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
3850 | rw_exit(&dp->dp_config_rwlock); | |
3851 | if (error) { | |
3852 | spa_close(spa, FTAG); | |
3853 | return (error); | |
3854 | } | |
3855 | ||
3856 | error = dmu_objset_from_ds(ds, &tosnap); | |
3857 | if (error) { | |
3858 | dsl_dataset_rele(ds, FTAG); | |
3859 | spa_close(spa, FTAG); | |
3860 | return (error); | |
3861 | } | |
3862 | ||
3863 | if (zc->zc_fromobj != 0) { | |
3864 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3865 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, FTAG, &dsfrom); | |
3866 | rw_exit(&dp->dp_config_rwlock); | |
3867 | spa_close(spa, FTAG); | |
3868 | if (error) { | |
3869 | dsl_dataset_rele(ds, FTAG); | |
3870 | return (error); | |
3871 | } | |
3872 | error = dmu_objset_from_ds(dsfrom, &fromsnap); | |
34dc7c2f | 3873 | if (error) { |
572e2857 BB |
3874 | dsl_dataset_rele(dsfrom, FTAG); |
3875 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3876 | return (error); |
3877 | } | |
572e2857 BB |
3878 | } else { |
3879 | spa_close(spa, FTAG); | |
34dc7c2f BB |
3880 | } |
3881 | ||
330d06f9 MA |
3882 | if (estimate) { |
3883 | error = dmu_send_estimate(tosnap, fromsnap, zc->zc_obj, | |
3884 | &zc->zc_objset_type); | |
3885 | } else { | |
3886 | file_t *fp = getf(zc->zc_cookie); | |
3887 | if (fp == NULL) { | |
3888 | dsl_dataset_rele(ds, FTAG); | |
3889 | if (dsfrom) | |
3890 | dsl_dataset_rele(dsfrom, FTAG); | |
3891 | return (EBADF); | |
3892 | } | |
34dc7c2f | 3893 | |
330d06f9 | 3894 | off = fp->f_offset; |
37abac6d BP |
3895 | error = dmu_send(tosnap, fromsnap, zc->zc_obj, |
3896 | zc->zc_cookie, fp->f_vnode, &off); | |
34dc7c2f | 3897 | |
330d06f9 MA |
3898 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
3899 | fp->f_offset = off; | |
3900 | releasef(zc->zc_cookie); | |
3901 | } | |
572e2857 BB |
3902 | if (dsfrom) |
3903 | dsl_dataset_rele(dsfrom, FTAG); | |
3904 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3905 | return (error); |
3906 | } | |
3907 | ||
37abac6d BP |
3908 | /* |
3909 | * inputs: | |
3910 | * zc_name name of snapshot on which to report progress | |
3911 | * zc_cookie file descriptor of send stream | |
3912 | * | |
3913 | * outputs: | |
3914 | * zc_cookie number of bytes written in send stream thus far | |
3915 | */ | |
3916 | static int | |
3917 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
3918 | { | |
3919 | dsl_dataset_t *ds; | |
3920 | dmu_sendarg_t *dsp = NULL; | |
3921 | int error; | |
3922 | ||
3923 | if ((error = dsl_dataset_hold(zc->zc_name, FTAG, &ds)) != 0) | |
3924 | return (error); | |
3925 | ||
3926 | mutex_enter(&ds->ds_sendstream_lock); | |
3927 | ||
3928 | /* | |
3929 | * Iterate over all the send streams currently active on this dataset. | |
3930 | * If there's one which matches the specified file descriptor _and_ the | |
3931 | * stream was started by the current process, return the progress of | |
3932 | * that stream. | |
3933 | */ | |
3934 | ||
3935 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
3936 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
3937 | if (dsp->dsa_outfd == zc->zc_cookie && | |
3938 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
3939 | break; | |
3940 | } | |
3941 | ||
3942 | if (dsp != NULL) | |
3943 | zc->zc_cookie = *(dsp->dsa_off); | |
3944 | else | |
3945 | error = ENOENT; | |
3946 | ||
3947 | mutex_exit(&ds->ds_sendstream_lock); | |
3948 | dsl_dataset_rele(ds, FTAG); | |
3949 | return (error); | |
3950 | } | |
3951 | ||
34dc7c2f BB |
3952 | static int |
3953 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
3954 | { | |
3955 | int id, error; | |
3956 | ||
3957 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
3958 | &zc->zc_inject_record); | |
3959 | ||
3960 | if (error == 0) | |
3961 | zc->zc_guid = (uint64_t)id; | |
3962 | ||
3963 | return (error); | |
3964 | } | |
3965 | ||
3966 | static int | |
3967 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
3968 | { | |
3969 | return (zio_clear_fault((int)zc->zc_guid)); | |
3970 | } | |
3971 | ||
3972 | static int | |
3973 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
3974 | { | |
3975 | int id = (int)zc->zc_guid; | |
3976 | int error; | |
3977 | ||
3978 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
3979 | &zc->zc_inject_record); | |
3980 | ||
3981 | zc->zc_guid = id; | |
3982 | ||
3983 | return (error); | |
3984 | } | |
3985 | ||
3986 | static int | |
3987 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
3988 | { | |
3989 | spa_t *spa; | |
3990 | int error; | |
3991 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
3992 | ||
3993 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
3994 | return (error); | |
3995 | ||
3996 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
3997 | &count); | |
3998 | if (error == 0) | |
3999 | zc->zc_nvlist_dst_size = count; | |
4000 | else | |
4001 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4002 | ||
4003 | spa_close(spa, FTAG); | |
4004 | ||
4005 | return (error); | |
4006 | } | |
4007 | ||
4008 | static int | |
4009 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4010 | { | |
4011 | spa_t *spa; | |
4012 | vdev_t *vd; | |
34dc7c2f BB |
4013 | int error; |
4014 | ||
34dc7c2f | 4015 | /* |
b128c09f | 4016 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4017 | */ |
b128c09f BB |
4018 | mutex_enter(&spa_namespace_lock); |
4019 | spa = spa_lookup(zc->zc_name); | |
4020 | if (spa == NULL) { | |
4021 | mutex_exit(&spa_namespace_lock); | |
4022 | return (EIO); | |
4023 | } | |
428870ff | 4024 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4025 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4026 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4027 | } |
428870ff | 4028 | spa->spa_last_open_failed = 0; |
b128c09f | 4029 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4030 | |
428870ff BB |
4031 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4032 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4033 | } else { | |
4034 | nvlist_t *policy; | |
4035 | nvlist_t *config = NULL; | |
4036 | ||
b8864a23 | 4037 | if (zc->zc_nvlist_src == 0) |
428870ff BB |
4038 | return (EINVAL); |
4039 | ||
4040 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4041 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4042 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4043 | policy, &config); | |
4044 | if (config != NULL) { | |
572e2857 BB |
4045 | int err; |
4046 | ||
4047 | if ((err = put_nvlist(zc, config)) != 0) | |
4048 | error = err; | |
428870ff BB |
4049 | nvlist_free(config); |
4050 | } | |
4051 | nvlist_free(policy); | |
4052 | } | |
4053 | } | |
4054 | ||
4055 | if (error) | |
b128c09f BB |
4056 | return (error); |
4057 | ||
428870ff | 4058 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4059 | |
4060 | if (zc->zc_guid == 0) { | |
4061 | vd = NULL; | |
b128c09f BB |
4062 | } else { |
4063 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4064 | if (vd == NULL) { |
b128c09f | 4065 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f BB |
4066 | spa_close(spa, FTAG); |
4067 | return (ENODEV); | |
4068 | } | |
4069 | } | |
4070 | ||
b128c09f BB |
4071 | vdev_clear(spa, vd); |
4072 | ||
4073 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4074 | |
b128c09f BB |
4075 | /* |
4076 | * Resume any suspended I/Os. | |
4077 | */ | |
9babb374 BB |
4078 | if (zio_resume(spa) != 0) |
4079 | error = EIO; | |
34dc7c2f BB |
4080 | |
4081 | spa_close(spa, FTAG); | |
4082 | ||
9babb374 | 4083 | return (error); |
34dc7c2f BB |
4084 | } |
4085 | ||
1bd201e7 CS |
4086 | static int |
4087 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4088 | { | |
4089 | spa_t *spa; | |
4090 | int error; | |
4091 | ||
4092 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4093 | if (error) | |
4094 | return (error); | |
4095 | ||
4096 | spa_vdev_state_enter(spa, SCL_NONE); | |
4097 | vdev_reopen(spa->spa_root_vdev); | |
4098 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
4099 | spa_close(spa, FTAG); | |
4100 | return (0); | |
4101 | } | |
34dc7c2f BB |
4102 | /* |
4103 | * inputs: | |
4104 | * zc_name name of filesystem | |
4105 | * zc_value name of origin snapshot | |
4106 | * | |
428870ff BB |
4107 | * outputs: |
4108 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4109 | */ |
4110 | static int | |
4111 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4112 | { | |
4113 | char *cp; | |
4114 | ||
4115 | /* | |
4116 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4117 | * it's easier. | |
4118 | */ | |
4119 | cp = strchr(zc->zc_value, '@'); | |
4120 | if (cp) | |
4121 | *cp = '\0'; | |
4122 | (void) dmu_objset_find(zc->zc_value, | |
4123 | zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); | |
428870ff | 4124 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4125 | } |
4126 | ||
9babb374 BB |
4127 | /* |
4128 | * Retrieve a single {user|group}{used|quota}@... property. | |
4129 | * | |
4130 | * inputs: | |
4131 | * zc_name name of filesystem | |
4132 | * zc_objset_type zfs_userquota_prop_t | |
4133 | * zc_value domain name (eg. "S-1-234-567-89") | |
4134 | * zc_guid RID/UID/GID | |
4135 | * | |
4136 | * outputs: | |
4137 | * zc_cookie property value | |
4138 | */ | |
4139 | static int | |
4140 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4141 | { | |
3558fd73 | 4142 | zfs_sb_t *zsb; |
9babb374 BB |
4143 | int error; |
4144 | ||
4145 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
4146 | return (EINVAL); | |
4147 | ||
3558fd73 | 4148 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
9babb374 BB |
4149 | if (error) |
4150 | return (error); | |
4151 | ||
3558fd73 | 4152 | error = zfs_userspace_one(zsb, |
9babb374 | 4153 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4154 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4155 | |
4156 | return (error); | |
4157 | } | |
4158 | ||
4159 | /* | |
4160 | * inputs: | |
4161 | * zc_name name of filesystem | |
4162 | * zc_cookie zap cursor | |
4163 | * zc_objset_type zfs_userquota_prop_t | |
4164 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4165 | * | |
4166 | * outputs: | |
4167 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4168 | * zc_cookie zap cursor | |
4169 | */ | |
4170 | static int | |
4171 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4172 | { | |
3558fd73 | 4173 | zfs_sb_t *zsb; |
428870ff | 4174 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4175 | int error; |
4176 | void *buf; | |
428870ff BB |
4177 | |
4178 | if (bufsize <= 0) | |
4179 | return (ENOMEM); | |
9babb374 | 4180 | |
3558fd73 | 4181 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
9babb374 BB |
4182 | if (error) |
4183 | return (error); | |
4184 | ||
2b8cad61 | 4185 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4186 | |
3558fd73 | 4187 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4188 | buf, &zc->zc_nvlist_dst_size); |
4189 | ||
4190 | if (error == 0) { | |
4191 | error = xcopyout(buf, | |
4192 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4193 | zc->zc_nvlist_dst_size); | |
4194 | } | |
2b8cad61 | 4195 | vmem_free(buf, bufsize); |
3558fd73 | 4196 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4197 | |
4198 | return (error); | |
4199 | } | |
4200 | ||
4201 | /* | |
4202 | * inputs: | |
4203 | * zc_name name of filesystem | |
4204 | * | |
4205 | * outputs: | |
4206 | * none | |
4207 | */ | |
4208 | static int | |
4209 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4210 | { | |
4211 | objset_t *os; | |
428870ff | 4212 | int error = 0; |
3558fd73 | 4213 | zfs_sb_t *zsb; |
9babb374 | 4214 | |
3558fd73 BB |
4215 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4216 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4217 | /* |
4218 | * If userused is not enabled, it may be because the | |
4219 | * objset needs to be closed & reopened (to grow the | |
4220 | * objset_phys_t). Suspend/resume the fs will do that. | |
4221 | */ | |
3558fd73 | 4222 | error = zfs_suspend_fs(zsb); |
428870ff | 4223 | if (error == 0) |
3558fd73 | 4224 | error = zfs_resume_fs(zsb, zc->zc_name); |
9babb374 BB |
4225 | } |
4226 | if (error == 0) | |
3558fd73 | 4227 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4228 | deactivate_super(zsb->z_sb); |
9babb374 | 4229 | } else { |
428870ff BB |
4230 | /* XXX kind of reading contents without owning */ |
4231 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
9babb374 BB |
4232 | if (error) |
4233 | return (error); | |
4234 | ||
4235 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4236 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4237 | } |
4238 | ||
4239 | return (error); | |
4240 | } | |
4241 | ||
34dc7c2f BB |
4242 | static int |
4243 | zfs_ioc_share(zfs_cmd_t *zc) | |
4244 | { | |
46e18b3f | 4245 | return (ENOSYS); |
34dc7c2f BB |
4246 | } |
4247 | ||
9babb374 BB |
4248 | ace_t full_access[] = { |
4249 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4250 | }; | |
4251 | ||
572e2857 BB |
4252 | /* |
4253 | * inputs: | |
4254 | * zc_name name of containing filesystem | |
4255 | * zc_obj object # beyond which we want next in-use object # | |
4256 | * | |
4257 | * outputs: | |
4258 | * zc_obj next in-use object # | |
4259 | */ | |
4260 | static int | |
4261 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4262 | { | |
4263 | objset_t *os = NULL; | |
4264 | int error; | |
4265 | ||
4266 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
4267 | if (error) | |
4268 | return (error); | |
4269 | ||
4270 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
4271 | os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); | |
4272 | ||
4273 | dmu_objset_rele(os, FTAG); | |
4274 | return (error); | |
4275 | } | |
4276 | ||
4277 | /* | |
4278 | * inputs: | |
4279 | * zc_name name of filesystem | |
4280 | * zc_value prefix name for snapshot | |
4281 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4282 | * | |
4283 | * outputs: | |
4284 | */ | |
4285 | static int | |
4286 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4287 | { | |
4288 | char *snap_name; | |
4289 | int error; | |
4290 | ||
4291 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, | |
4292 | (u_longlong_t)ddi_get_lbolt64()); | |
4293 | ||
4294 | if (strlen(snap_name) >= MAXNAMELEN) { | |
4295 | strfree(snap_name); | |
4296 | return (E2BIG); | |
4297 | } | |
4298 | ||
4299 | error = dmu_objset_snapshot(zc->zc_name, snap_name, snap_name, | |
4300 | NULL, B_FALSE, B_TRUE, zc->zc_cleanup_fd); | |
4301 | if (error != 0) { | |
4302 | strfree(snap_name); | |
4303 | return (error); | |
4304 | } | |
4305 | ||
4306 | (void) strcpy(zc->zc_value, snap_name); | |
4307 | strfree(snap_name); | |
4308 | return (0); | |
4309 | } | |
4310 | ||
4311 | /* | |
4312 | * inputs: | |
4313 | * zc_name name of "to" snapshot | |
4314 | * zc_value name of "from" snapshot | |
4315 | * zc_cookie file descriptor to write diff data on | |
4316 | * | |
4317 | * outputs: | |
4318 | * dmu_diff_record_t's to the file descriptor | |
4319 | */ | |
4320 | static int | |
4321 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4322 | { | |
4323 | objset_t *fromsnap; | |
4324 | objset_t *tosnap; | |
4325 | file_t *fp; | |
4326 | offset_t off; | |
4327 | int error; | |
4328 | ||
4329 | error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap); | |
4330 | if (error) | |
4331 | return (error); | |
4332 | ||
4333 | error = dmu_objset_hold(zc->zc_value, FTAG, &fromsnap); | |
4334 | if (error) { | |
4335 | dmu_objset_rele(tosnap, FTAG); | |
4336 | return (error); | |
4337 | } | |
4338 | ||
4339 | fp = getf(zc->zc_cookie); | |
4340 | if (fp == NULL) { | |
4341 | dmu_objset_rele(fromsnap, FTAG); | |
4342 | dmu_objset_rele(tosnap, FTAG); | |
4343 | return (EBADF); | |
4344 | } | |
4345 | ||
4346 | off = fp->f_offset; | |
4347 | ||
4348 | error = dmu_diff(tosnap, fromsnap, fp->f_vnode, &off); | |
4349 | ||
4350 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4351 | fp->f_offset = off; | |
4352 | releasef(zc->zc_cookie); | |
4353 | ||
4354 | dmu_objset_rele(fromsnap, FTAG); | |
4355 | dmu_objset_rele(tosnap, FTAG); | |
4356 | return (error); | |
4357 | } | |
4358 | ||
9babb374 BB |
4359 | /* |
4360 | * Remove all ACL files in shares dir | |
4361 | */ | |
3c9609b3 | 4362 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4363 | static int |
4364 | zfs_smb_acl_purge(znode_t *dzp) | |
4365 | { | |
4366 | zap_cursor_t zc; | |
4367 | zap_attribute_t zap; | |
3558fd73 | 4368 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4369 | int error; |
4370 | ||
3558fd73 | 4371 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4372 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4373 | zap_cursor_advance(&zc)) { | |
4374 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4375 | NULL, 0)) != 0) | |
4376 | break; | |
4377 | } | |
4378 | zap_cursor_fini(&zc); | |
4379 | return (error); | |
4380 | } | |
3c9609b3 | 4381 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4382 | |
4383 | static int | |
4384 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4385 | { | |
3c9609b3 | 4386 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4387 | vnode_t *vp; |
4388 | znode_t *dzp; | |
4389 | vnode_t *resourcevp = NULL; | |
4390 | znode_t *sharedir; | |
3558fd73 | 4391 | zfs_sb_t *zsb; |
9babb374 BB |
4392 | nvlist_t *nvlist; |
4393 | char *src, *target; | |
4394 | vattr_t vattr; | |
4395 | vsecattr_t vsec; | |
4396 | int error = 0; | |
4397 | ||
4398 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4399 | NO_FOLLOW, NULL, &vp)) != 0) | |
4400 | return (error); | |
4401 | ||
4402 | /* Now make sure mntpnt and dataset are ZFS */ | |
4403 | ||
4404 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4405 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4406 | zc->zc_name) != 0)) { | |
4407 | VN_RELE(vp); | |
4408 | return (EINVAL); | |
4409 | } | |
4410 | ||
4411 | dzp = VTOZ(vp); | |
3558fd73 BB |
4412 | zsb = ZTOZSB(dzp); |
4413 | ZFS_ENTER(zsb); | |
9babb374 BB |
4414 | |
4415 | /* | |
4416 | * Create share dir if its missing. | |
4417 | */ | |
3558fd73 BB |
4418 | mutex_enter(&zsb->z_lock); |
4419 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4420 | dmu_tx_t *tx; |
4421 | ||
3558fd73 | 4422 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4423 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4424 | ZFS_SHARES_DIR); | |
4425 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4426 | error = dmu_tx_assign(tx, TXG_WAIT); | |
4427 | if (error) { | |
4428 | dmu_tx_abort(tx); | |
4429 | } else { | |
3558fd73 | 4430 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4431 | dmu_tx_commit(tx); |
4432 | } | |
4433 | if (error) { | |
3558fd73 | 4434 | mutex_exit(&zsb->z_lock); |
9babb374 | 4435 | VN_RELE(vp); |
3558fd73 | 4436 | ZFS_EXIT(zsb); |
9babb374 BB |
4437 | return (error); |
4438 | } | |
4439 | } | |
3558fd73 | 4440 | mutex_exit(&zsb->z_lock); |
9babb374 | 4441 | |
3558fd73 BB |
4442 | ASSERT(zsb->z_shares_dir); |
4443 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4444 | VN_RELE(vp); |
3558fd73 | 4445 | ZFS_EXIT(zsb); |
9babb374 BB |
4446 | return (error); |
4447 | } | |
4448 | ||
4449 | switch (zc->zc_cookie) { | |
4450 | case ZFS_SMB_ACL_ADD: | |
4451 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4452 | vattr.va_mode = S_IFREG|0777; |
4453 | vattr.va_uid = 0; | |
4454 | vattr.va_gid = 0; | |
4455 | ||
4456 | vsec.vsa_mask = VSA_ACE; | |
4457 | vsec.vsa_aclentp = &full_access; | |
4458 | vsec.vsa_aclentsz = sizeof (full_access); | |
4459 | vsec.vsa_aclcnt = 1; | |
4460 | ||
4461 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4462 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4463 | if (resourcevp) | |
4464 | VN_RELE(resourcevp); | |
4465 | break; | |
4466 | ||
4467 | case ZFS_SMB_ACL_REMOVE: | |
4468 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4469 | NULL, 0); | |
4470 | break; | |
4471 | ||
4472 | case ZFS_SMB_ACL_RENAME: | |
4473 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4474 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4475 | VN_RELE(vp); | |
3558fd73 | 4476 | ZFS_EXIT(zsb); |
9babb374 BB |
4477 | return (error); |
4478 | } | |
4479 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4480 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4481 | &target)) { | |
4482 | VN_RELE(vp); | |
4483 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4484 | ZFS_EXIT(zsb); |
428870ff | 4485 | nvlist_free(nvlist); |
9babb374 BB |
4486 | return (error); |
4487 | } | |
4488 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4489 | kcred, NULL, 0); | |
4490 | nvlist_free(nvlist); | |
4491 | break; | |
4492 | ||
4493 | case ZFS_SMB_ACL_PURGE: | |
4494 | error = zfs_smb_acl_purge(sharedir); | |
4495 | break; | |
4496 | ||
4497 | default: | |
4498 | error = EINVAL; | |
4499 | break; | |
4500 | } | |
4501 | ||
4502 | VN_RELE(vp); | |
4503 | VN_RELE(ZTOV(sharedir)); | |
4504 | ||
3558fd73 | 4505 | ZFS_EXIT(zsb); |
9babb374 BB |
4506 | |
4507 | return (error); | |
325f0235 BB |
4508 | #else |
4509 | return (ENOTSUP); | |
3c9609b3 | 4510 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4511 | } |
4512 | ||
45d1cae3 BB |
4513 | /* |
4514 | * inputs: | |
572e2857 BB |
4515 | * zc_name name of filesystem |
4516 | * zc_value short name of snap | |
4517 | * zc_string user-supplied tag for this hold | |
4518 | * zc_cookie recursive flag | |
4519 | * zc_temphold set if hold is temporary | |
4520 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4521 | * zc_sendobj if non-zero, the objid for zc_name@zc_value | |
4522 | * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg | |
45d1cae3 BB |
4523 | * |
4524 | * outputs: none | |
4525 | */ | |
4526 | static int | |
4527 | zfs_ioc_hold(zfs_cmd_t *zc) | |
4528 | { | |
4529 | boolean_t recursive = zc->zc_cookie; | |
572e2857 BB |
4530 | spa_t *spa; |
4531 | dsl_pool_t *dp; | |
4532 | dsl_dataset_t *ds; | |
4533 | int error; | |
4534 | minor_t minor = 0; | |
45d1cae3 BB |
4535 | |
4536 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4537 | return (EINVAL); | |
4538 | ||
572e2857 BB |
4539 | if (zc->zc_sendobj == 0) { |
4540 | return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value, | |
4541 | zc->zc_string, recursive, zc->zc_temphold, | |
4542 | zc->zc_cleanup_fd)); | |
4543 | } | |
4544 | ||
4545 | if (recursive) | |
4546 | return (EINVAL); | |
4547 | ||
4548 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4549 | if (error) | |
4550 | return (error); | |
4551 | ||
4552 | dp = spa_get_dsl(spa); | |
4553 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
4554 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
4555 | rw_exit(&dp->dp_config_rwlock); | |
4556 | spa_close(spa, FTAG); | |
4557 | if (error) | |
4558 | return (error); | |
4559 | ||
4560 | /* | |
4561 | * Until we have a hold on this snapshot, it's possible that | |
4562 | * zc_sendobj could've been destroyed and reused as part | |
4563 | * of a later txg. Make sure we're looking at the right object. | |
4564 | */ | |
4565 | if (zc->zc_createtxg != ds->ds_phys->ds_creation_txg) { | |
4566 | dsl_dataset_rele(ds, FTAG); | |
4567 | return (ENOENT); | |
4568 | } | |
4569 | ||
4570 | if (zc->zc_cleanup_fd != -1 && zc->zc_temphold) { | |
4571 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); | |
4572 | if (error) { | |
4573 | dsl_dataset_rele(ds, FTAG); | |
4574 | return (error); | |
4575 | } | |
4576 | } | |
4577 | ||
4578 | error = dsl_dataset_user_hold_for_send(ds, zc->zc_string, | |
4579 | zc->zc_temphold); | |
4580 | if (minor != 0) { | |
4581 | if (error == 0) { | |
4582 | dsl_register_onexit_hold_cleanup(ds, zc->zc_string, | |
4583 | minor); | |
4584 | } | |
4585 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4586 | } | |
4587 | dsl_dataset_rele(ds, FTAG); | |
4588 | ||
4589 | return (error); | |
45d1cae3 BB |
4590 | } |
4591 | ||
4592 | /* | |
4593 | * inputs: | |
572e2857 | 4594 | * zc_name name of dataset from which we're releasing a user hold |
45d1cae3 | 4595 | * zc_value short name of snap |
572e2857 | 4596 | * zc_string user-supplied tag for this hold |
45d1cae3 BB |
4597 | * zc_cookie recursive flag |
4598 | * | |
572e2857 | 4599 | * outputs: none |
45d1cae3 BB |
4600 | */ |
4601 | static int | |
4602 | zfs_ioc_release(zfs_cmd_t *zc) | |
4603 | { | |
4604 | boolean_t recursive = zc->zc_cookie; | |
4605 | ||
4606 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4607 | return (EINVAL); | |
4608 | ||
4609 | return (dsl_dataset_user_release(zc->zc_name, zc->zc_value, | |
4610 | zc->zc_string, recursive)); | |
4611 | } | |
4612 | ||
4613 | /* | |
4614 | * inputs: | |
4615 | * zc_name name of filesystem | |
4616 | * | |
4617 | * outputs: | |
4618 | * zc_nvlist_src{_size} nvlist of snapshot holds | |
4619 | */ | |
4620 | static int | |
4621 | zfs_ioc_get_holds(zfs_cmd_t *zc) | |
4622 | { | |
4623 | nvlist_t *nvp; | |
4624 | int error; | |
4625 | ||
4626 | if ((error = dsl_dataset_get_holds(zc->zc_name, &nvp)) == 0) { | |
4627 | error = put_nvlist(zc, nvp); | |
4628 | nvlist_free(nvp); | |
4629 | } | |
4630 | ||
4631 | return (error); | |
4632 | } | |
4633 | ||
26685276 BB |
4634 | /* |
4635 | * inputs: | |
4636 | * zc_guid flags (ZEVENT_NONBLOCK) | |
4637 | * | |
4638 | * outputs: | |
4639 | * zc_nvlist_dst next nvlist event | |
4640 | * zc_cookie dropped events since last get | |
4641 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4642 | */ | |
4643 | static int | |
4644 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
4645 | { | |
4646 | zfs_zevent_t *ze; | |
4647 | nvlist_t *event = NULL; | |
4648 | minor_t minor; | |
4649 | uint64_t dropped = 0; | |
4650 | int error; | |
4651 | ||
4652 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
4653 | if (error != 0) | |
4654 | return (error); | |
4655 | ||
4656 | do { | |
baa40d45 BB |
4657 | error = zfs_zevent_next(ze, &event, |
4658 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
4659 | if (event != NULL) { |
4660 | zc->zc_cookie = dropped; | |
4661 | error = put_nvlist(zc, event); | |
baa40d45 | 4662 | nvlist_free(event); |
26685276 BB |
4663 | } |
4664 | ||
4665 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
4666 | break; | |
4667 | ||
4668 | if ((error == 0) || (error != ENOENT)) | |
4669 | break; | |
4670 | ||
4671 | error = zfs_zevent_wait(ze); | |
4672 | if (error) | |
4673 | break; | |
4674 | } while (1); | |
4675 | ||
4676 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
4677 | ||
4678 | return (error); | |
4679 | } | |
4680 | ||
4681 | /* | |
4682 | * outputs: | |
4683 | * zc_cookie cleared events count | |
4684 | */ | |
4685 | static int | |
4686 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
4687 | { | |
4688 | int count; | |
4689 | ||
4690 | zfs_zevent_drain_all(&count); | |
4691 | zc->zc_cookie = count; | |
4692 | ||
4693 | return 0; | |
4694 | } | |
4695 | ||
330d06f9 MA |
4696 | /* |
4697 | * inputs: | |
4698 | * zc_name name of new filesystem or snapshot | |
4699 | * zc_value full name of old snapshot | |
4700 | * | |
4701 | * outputs: | |
4702 | * zc_cookie space in bytes | |
4703 | * zc_objset_type compressed space in bytes | |
4704 | * zc_perm_action uncompressed space in bytes | |
4705 | */ | |
4706 | static int | |
4707 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
4708 | { | |
4709 | int error; | |
4710 | dsl_dataset_t *new, *old; | |
4711 | ||
4712 | error = dsl_dataset_hold(zc->zc_name, FTAG, &new); | |
4713 | if (error != 0) | |
4714 | return (error); | |
4715 | error = dsl_dataset_hold(zc->zc_value, FTAG, &old); | |
4716 | if (error != 0) { | |
4717 | dsl_dataset_rele(new, FTAG); | |
4718 | return (error); | |
4719 | } | |
4720 | ||
4721 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
4722 | &zc->zc_objset_type, &zc->zc_perm_action); | |
4723 | dsl_dataset_rele(old, FTAG); | |
4724 | dsl_dataset_rele(new, FTAG); | |
4725 | return (error); | |
4726 | } | |
4727 | ||
4728 | /* | |
4729 | * inputs: | |
4730 | * zc_name full name of last snapshot | |
4731 | * zc_value full name of first snapshot | |
4732 | * | |
4733 | * outputs: | |
4734 | * zc_cookie space in bytes | |
4735 | * zc_objset_type compressed space in bytes | |
4736 | * zc_perm_action uncompressed space in bytes | |
4737 | */ | |
4738 | static int | |
4739 | zfs_ioc_space_snaps(zfs_cmd_t *zc) | |
4740 | { | |
4741 | int error; | |
4742 | dsl_dataset_t *new, *old; | |
4743 | ||
4744 | error = dsl_dataset_hold(zc->zc_name, FTAG, &new); | |
4745 | if (error != 0) | |
4746 | return (error); | |
4747 | error = dsl_dataset_hold(zc->zc_value, FTAG, &old); | |
4748 | if (error != 0) { | |
4749 | dsl_dataset_rele(new, FTAG); | |
4750 | return (error); | |
4751 | } | |
4752 | ||
4753 | error = dsl_dataset_space_wouldfree(old, new, &zc->zc_cookie, | |
4754 | &zc->zc_objset_type, &zc->zc_perm_action); | |
4755 | dsl_dataset_rele(old, FTAG); | |
4756 | dsl_dataset_rele(new, FTAG); | |
4757 | return (error); | |
4758 | } | |
4759 | ||
34dc7c2f BB |
4760 | /* |
4761 | * pool create, destroy, and export don't log the history as part of | |
4762 | * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export | |
4763 | * do the logging of those commands. | |
4764 | */ | |
4765 | static zfs_ioc_vec_t zfs_ioc_vec[] = { | |
9babb374 | 4766 | { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4767 | POOL_CHECK_NONE }, |
9babb374 | 4768 | { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4769 | POOL_CHECK_NONE }, |
9babb374 | 4770 | { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4771 | POOL_CHECK_NONE }, |
9babb374 | 4772 | { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4773 | POOL_CHECK_NONE }, |
9babb374 | 4774 | { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE, |
572e2857 | 4775 | POOL_CHECK_NONE }, |
9babb374 | 4776 | { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4777 | POOL_CHECK_NONE }, |
9babb374 | 4778 | { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4779 | POOL_CHECK_NONE }, |
428870ff | 4780 | { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4781 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4782 | { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4783 | POOL_CHECK_READONLY }, |
9babb374 | 4784 | { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4785 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4786 | { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4787 | POOL_CHECK_NONE }, |
9babb374 | 4788 | { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4789 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4790 | { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4791 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4792 | { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4793 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4794 | { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4795 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4796 | { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4797 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4798 | { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4799 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4800 | { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4801 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4802 | { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4803 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4804 | { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4805 | POOL_CHECK_NONE }, |
9babb374 | 4806 | { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4807 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4808 | { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4809 | POOL_CHECK_SUSPENDED }, |
4810 | { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE, | |
4811 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
60101509 BB |
4812 | { zfs_ioc_create_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE, |
4813 | POOL_CHECK_NONE }, | |
4814 | { zfs_ioc_remove_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE, | |
4815 | POOL_CHECK_NONE }, | |
572e2857 BB |
4816 | { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE, |
4817 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
9babb374 | 4818 | { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE, |
572e2857 | 4819 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4820 | { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE, |
572e2857 BB |
4821 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4822 | { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE, | |
4823 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4824 | { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE, | |
4825 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
330d06f9 | 4826 | { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_FALSE, |
572e2857 | 4827 | POOL_CHECK_NONE }, |
9babb374 | 4828 | { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4829 | POOL_CHECK_NONE }, |
9babb374 | 4830 | { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4831 | POOL_CHECK_NONE }, |
9babb374 | 4832 | { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4833 | POOL_CHECK_NONE }, |
9babb374 | 4834 | { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE, |
572e2857 BB |
4835 | POOL_CHECK_NONE }, |
4836 | { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4837 | POOL_CHECK_NONE }, | |
9babb374 | 4838 | { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE, |
572e2857 | 4839 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
330d06f9 MA |
4840 | { zfs_ioc_destroy_snaps_nvl, zfs_secpolicy_destroy_recursive, |
4841 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
9babb374 | 4842 | { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE, |
572e2857 BB |
4843 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4844 | { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_diff, POOL_NAME, B_FALSE, | |
4845 | POOL_CHECK_NONE }, | |
4846 | { zfs_ioc_obj_to_path, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4847 | POOL_CHECK_SUSPENDED }, | |
9babb374 | 4848 | { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4849 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4850 | { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4851 | POOL_CHECK_NONE }, |
9babb374 | 4852 | { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE, |
572e2857 | 4853 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4854 | { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4855 | POOL_CHECK_NONE }, |
4856 | { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE, | |
4857 | POOL_CHECK_NONE }, | |
9babb374 | 4858 | { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE, |
572e2857 | 4859 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4860 | { zfs_ioc_smb_acl, zfs_secpolicy_smb_acl, DATASET_NAME, B_FALSE, |
572e2857 BB |
4861 | POOL_CHECK_NONE }, |
4862 | { zfs_ioc_userspace_one, zfs_secpolicy_userspace_one, DATASET_NAME, | |
4863 | B_FALSE, POOL_CHECK_NONE }, | |
4864 | { zfs_ioc_userspace_many, zfs_secpolicy_userspace_many, DATASET_NAME, | |
4865 | B_FALSE, POOL_CHECK_NONE }, | |
9babb374 | 4866 | { zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, |
572e2857 BB |
4867 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4868 | { zfs_ioc_hold, zfs_secpolicy_hold, DATASET_NAME, B_TRUE, | |
4869 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
45d1cae3 | 4870 | { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE, |
572e2857 | 4871 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
45d1cae3 | 4872 | { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4873 | POOL_CHECK_SUSPENDED }, |
428870ff | 4874 | { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4875 | POOL_CHECK_NONE }, |
428870ff | 4876 | { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 BB |
4877 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4878 | { zfs_ioc_next_obj, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4879 | POOL_CHECK_NONE }, | |
4880 | { zfs_ioc_diff, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4881 | POOL_CHECK_NONE }, | |
4882 | { zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, DATASET_NAME, | |
4883 | B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4884 | { zfs_ioc_obj_to_stats, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
26685276 BB |
4885 | POOL_CHECK_SUSPENDED }, |
4886 | { zfs_ioc_events_next, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
4887 | POOL_CHECK_NONE }, | |
4888 | { zfs_ioc_events_clear, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
330d06f9 MA |
4889 | POOL_CHECK_NONE }, |
4890 | { zfs_ioc_pool_reguid, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4891 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4892 | { zfs_ioc_space_written, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4893 | POOL_CHECK_SUSPENDED }, | |
4894 | { zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4895 | POOL_CHECK_SUSPENDED }, | |
1bd201e7 CS |
4896 | { zfs_ioc_pool_reopen, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
4897 | POOL_CHECK_SUSPENDED }, | |
37abac6d BP |
4898 | { zfs_ioc_send_progress, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
4899 | POOL_CHECK_NONE } | |
34dc7c2f BB |
4900 | }; |
4901 | ||
9babb374 | 4902 | int |
572e2857 BB |
4903 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
4904 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
4905 | { |
4906 | spa_t *spa; | |
4907 | int error; | |
4908 | ||
4909 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
4910 | ||
572e2857 BB |
4911 | if (check & POOL_CHECK_NONE) |
4912 | return (0); | |
4913 | ||
9babb374 BB |
4914 | error = spa_open(name, &spa, FTAG); |
4915 | if (error == 0) { | |
572e2857 | 4916 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
9babb374 | 4917 | error = EAGAIN; |
572e2857 BB |
4918 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
4919 | error = EROFS; | |
9babb374 BB |
4920 | spa_close(spa, FTAG); |
4921 | } | |
4922 | return (error); | |
4923 | } | |
4924 | ||
325f0235 BB |
4925 | static void * |
4926 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
4927 | { | |
4928 | zfsdev_state_t *zs; | |
4929 | ||
4930 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4931 | ||
4932 | for (zs = list_head(&zfsdev_state_list); zs != NULL; | |
4933 | zs = list_next(&zfsdev_state_list, zs)) { | |
4934 | if (zs->zs_minor == minor) { | |
4935 | switch (which) { | |
4936 | case ZST_ONEXIT: return (zs->zs_onexit); | |
4937 | case ZST_ZEVENT: return (zs->zs_zevent); | |
4938 | case ZST_ALL: return (zs); | |
4939 | } | |
4940 | } | |
4941 | } | |
4942 | ||
4943 | return NULL; | |
4944 | } | |
4945 | ||
4946 | void * | |
4947 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
4948 | { | |
4949 | void *ptr; | |
4950 | ||
4951 | mutex_enter(&zfsdev_state_lock); | |
4952 | ptr = zfsdev_get_state_impl(minor, which); | |
4953 | mutex_exit(&zfsdev_state_lock); | |
4954 | ||
4955 | return ptr; | |
4956 | } | |
4957 | ||
4958 | minor_t | |
4959 | zfsdev_getminor(struct file *filp) | |
4960 | { | |
4961 | ASSERT(filp != NULL); | |
4962 | ASSERT(filp->private_data != NULL); | |
4963 | ||
4964 | return (((zfsdev_state_t *)filp->private_data)->zs_minor); | |
4965 | } | |
4966 | ||
572e2857 | 4967 | /* |
325f0235 BB |
4968 | * Find a free minor number. The zfsdev_state_list is expected to |
4969 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
4970 | */ |
4971 | minor_t | |
4972 | zfsdev_minor_alloc(void) | |
4973 | { | |
325f0235 | 4974 | static minor_t last_minor = 0; |
572e2857 BB |
4975 | minor_t m; |
4976 | ||
4977 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4978 | ||
4979 | for (m = last_minor + 1; m != last_minor; m++) { | |
4980 | if (m > ZFSDEV_MAX_MINOR) | |
4981 | m = 1; | |
325f0235 | 4982 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
4983 | last_minor = m; |
4984 | return (m); | |
4985 | } | |
4986 | } | |
4987 | ||
4988 | return (0); | |
4989 | } | |
4990 | ||
4991 | static int | |
325f0235 | 4992 | zfsdev_state_init(struct file *filp) |
572e2857 | 4993 | { |
325f0235 | 4994 | zfsdev_state_t *zs; |
572e2857 | 4995 | minor_t minor; |
572e2857 BB |
4996 | |
4997 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 4998 | |
325f0235 BB |
4999 | minor = zfsdev_minor_alloc(); |
5000 | if (minor == 0) | |
5001 | return (ENXIO); | |
5002 | ||
5003 | zs = kmem_zalloc( sizeof(zfsdev_state_t), KM_SLEEP); | |
5004 | if (zs == NULL) | |
5005 | return (ENOMEM); | |
572e2857 | 5006 | |
325f0235 BB |
5007 | zs->zs_file = filp; |
5008 | zs->zs_minor = minor; | |
5009 | filp->private_data = zs; | |
572e2857 | 5010 | |
325f0235 BB |
5011 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
5012 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 5013 | |
325f0235 | 5014 | list_insert_tail(&zfsdev_state_list, zs); |
572e2857 BB |
5015 | |
5016 | return (0); | |
5017 | } | |
5018 | ||
325f0235 BB |
5019 | static int |
5020 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 5021 | { |
325f0235 | 5022 | zfsdev_state_t *zs; |
572e2857 | 5023 | |
325f0235 BB |
5024 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
5025 | ASSERT(filp->private_data != NULL); | |
572e2857 | 5026 | |
325f0235 BB |
5027 | zs = filp->private_data; |
5028 | zfs_onexit_destroy(zs->zs_onexit); | |
5029 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 5030 | |
325f0235 BB |
5031 | list_remove(&zfsdev_state_list, zs); |
5032 | kmem_free(zs, sizeof(zfsdev_state_t)); | |
572e2857 | 5033 | |
325f0235 | 5034 | return 0; |
572e2857 BB |
5035 | } |
5036 | ||
5037 | static int | |
325f0235 | 5038 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 5039 | { |
325f0235 | 5040 | int error; |
572e2857 | 5041 | |
325f0235 BB |
5042 | mutex_enter(&zfsdev_state_lock); |
5043 | error = zfsdev_state_init(filp); | |
5044 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 5045 | |
325f0235 | 5046 | return (-error); |
572e2857 BB |
5047 | } |
5048 | ||
5049 | static int | |
325f0235 | 5050 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 5051 | { |
325f0235 | 5052 | int error; |
572e2857 BB |
5053 | |
5054 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 5055 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
5056 | mutex_exit(&zfsdev_state_lock); |
5057 | ||
325f0235 | 5058 | return (-error); |
572e2857 BB |
5059 | } |
5060 | ||
325f0235 BB |
5061 | static long |
5062 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
5063 | { |
5064 | zfs_cmd_t *zc; | |
5065 | uint_t vec; | |
325f0235 | 5066 | int error, rc, flag = 0; |
34dc7c2f BB |
5067 | |
5068 | vec = cmd - ZFS_IOC; | |
34dc7c2f | 5069 | if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) |
325f0235 | 5070 | return (-EINVAL); |
34dc7c2f | 5071 | |
00b46022 | 5072 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 5073 | |
9babb374 | 5074 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
428870ff BB |
5075 | if (error != 0) |
5076 | error = EFAULT; | |
34dc7c2f | 5077 | |
428870ff | 5078 | if ((error == 0) && !(flag & FKIOCTL)) |
f01b360e | 5079 | error = zfs_ioc_vec[vec].zvec_secpolicy(zc, CRED()); |
34dc7c2f BB |
5080 | |
5081 | /* | |
5082 | * Ensure that all pool/dataset names are valid before we pass down to | |
5083 | * the lower layers. | |
5084 | */ | |
5085 | if (error == 0) { | |
5086 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; | |
9babb374 | 5087 | zc->zc_iflags = flag & FKIOCTL; |
34dc7c2f BB |
5088 | switch (zfs_ioc_vec[vec].zvec_namecheck) { |
5089 | case POOL_NAME: | |
5090 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5091 | error = EINVAL; | |
572e2857 BB |
5092 | error = pool_status_check(zc->zc_name, |
5093 | zfs_ioc_vec[vec].zvec_namecheck, | |
5094 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
5095 | break; |
5096 | ||
5097 | case DATASET_NAME: | |
5098 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5099 | error = EINVAL; | |
572e2857 BB |
5100 | error = pool_status_check(zc->zc_name, |
5101 | zfs_ioc_vec[vec].zvec_namecheck, | |
5102 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
5103 | break; |
5104 | ||
5105 | case NO_NAME: | |
5106 | break; | |
5107 | } | |
5108 | } | |
5109 | ||
5110 | if (error == 0) | |
5111 | error = zfs_ioc_vec[vec].zvec_func(zc); | |
5112 | ||
9babb374 | 5113 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
34dc7c2f | 5114 | if (error == 0) { |
428870ff BB |
5115 | if (rc != 0) |
5116 | error = EFAULT; | |
9babb374 | 5117 | if (zfs_ioc_vec[vec].zvec_his_log) |
34dc7c2f BB |
5118 | zfs_log_history(zc); |
5119 | } | |
5120 | ||
5121 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5122 | return (-error); |
34dc7c2f BB |
5123 | } |
5124 | ||
325f0235 BB |
5125 | #ifdef CONFIG_COMPAT |
5126 | static long | |
5127 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5128 | { |
325f0235 BB |
5129 | return zfsdev_ioctl(filp, cmd, arg); |
5130 | } | |
5131 | #else | |
f5e79474 | 5132 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5133 | #endif |
34dc7c2f | 5134 | |
325f0235 BB |
5135 | static const struct file_operations zfsdev_fops = { |
5136 | .open = zfsdev_open, | |
5137 | .release = zfsdev_release, | |
5138 | .unlocked_ioctl = zfsdev_ioctl, | |
5139 | .compat_ioctl = zfsdev_compat_ioctl, | |
5140 | .owner = THIS_MODULE, | |
5141 | }; | |
34dc7c2f | 5142 | |
325f0235 BB |
5143 | static struct miscdevice zfs_misc = { |
5144 | .minor = MISC_DYNAMIC_MINOR, | |
5145 | .name = ZFS_DRIVER, | |
5146 | .fops = &zfsdev_fops, | |
5147 | }; | |
34dc7c2f BB |
5148 | |
5149 | static int | |
325f0235 | 5150 | zfs_attach(void) |
34dc7c2f | 5151 | { |
325f0235 | 5152 | int error; |
34dc7c2f | 5153 | |
325f0235 BB |
5154 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
5155 | list_create(&zfsdev_state_list, sizeof (zfsdev_state_t), | |
5156 | offsetof(zfsdev_state_t, zs_next)); | |
34dc7c2f | 5157 | |
325f0235 BB |
5158 | error = misc_register(&zfs_misc); |
5159 | if (error) { | |
5160 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); | |
5161 | return (error); | |
5162 | } | |
34dc7c2f | 5163 | |
325f0235 | 5164 | return (0); |
34dc7c2f BB |
5165 | } |
5166 | ||
325f0235 BB |
5167 | static void |
5168 | zfs_detach(void) | |
34dc7c2f | 5169 | { |
325f0235 | 5170 | int error; |
34dc7c2f | 5171 | |
325f0235 BB |
5172 | error = misc_deregister(&zfs_misc); |
5173 | if (error) | |
5174 | printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error); | |
34dc7c2f | 5175 | |
325f0235 BB |
5176 | mutex_destroy(&zfsdev_state_lock); |
5177 | list_destroy(&zfsdev_state_list); | |
34dc7c2f BB |
5178 | } |
5179 | ||
34dc7c2f BB |
5180 | uint_t zfs_fsyncer_key; |
5181 | extern uint_t rrw_tsd_key; | |
325f0235 BB |
5182 | |
5183 | #ifdef DEBUG | |
5184 | #define ZFS_DEBUG_STR " (DEBUG mode)" | |
5185 | #else | |
5186 | #define ZFS_DEBUG_STR "" | |
5187 | #endif | |
34dc7c2f BB |
5188 | |
5189 | int | |
5190 | _init(void) | |
5191 | { | |
5192 | int error; | |
5193 | ||
5194 | spa_init(FREAD | FWRITE); | |
5195 | zfs_init(); | |
34dc7c2f | 5196 | |
325f0235 BB |
5197 | if ((error = zvol_init()) != 0) |
5198 | goto out1; | |
5199 | ||
5200 | if ((error = zfs_attach()) != 0) | |
5201 | goto out2; | |
34dc7c2f BB |
5202 | |
5203 | tsd_create(&zfs_fsyncer_key, NULL); | |
5204 | tsd_create(&rrw_tsd_key, NULL); | |
5205 | ||
4b5d425f | 5206 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
a23cc0a4 | 5207 | "ZFS pool version %s, ZFS filesystem version %s\n", |
4b5d425f | 5208 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, |
a23cc0a4 | 5209 | SPA_VERSION_STRING, ZPL_VERSION_STRING); |
34dc7c2f BB |
5210 | |
5211 | return (0); | |
325f0235 BB |
5212 | |
5213 | out2: | |
5214 | (void) zvol_fini(); | |
5215 | out1: | |
5216 | zfs_fini(); | |
5217 | spa_fini(); | |
4b5d425f BB |
5218 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
5219 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, | |
5220 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
5221 | |
5222 | return (error); | |
34dc7c2f BB |
5223 | } |
5224 | ||
5225 | int | |
5226 | _fini(void) | |
5227 | { | |
325f0235 | 5228 | zfs_detach(); |
34dc7c2f BB |
5229 | zvol_fini(); |
5230 | zfs_fini(); | |
5231 | spa_fini(); | |
46e18b3f | 5232 | |
325f0235 | 5233 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 5234 | tsd_destroy(&rrw_tsd_key); |
34dc7c2f | 5235 | |
4b5d425f BB |
5236 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
5237 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); | |
34dc7c2f | 5238 | |
325f0235 | 5239 | return (0); |
34dc7c2f | 5240 | } |
325f0235 BB |
5241 | |
5242 | #ifdef HAVE_SPL | |
5243 | spl_module_init(_init); | |
5244 | spl_module_exit(_fini); | |
5245 | ||
5246 | MODULE_DESCRIPTION("ZFS"); | |
5247 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
5248 | MODULE_LICENSE(ZFS_META_LICENSE); | |
5249 | #endif /* HAVE_SPL */ |