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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 | */ | |
9ae529ec | 21 | |
34dc7c2f | 22 | /* |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
b129c659 | 24 | * Portions Copyright 2011 Martin Matuska |
671c9354 | 25 | * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved. |
0cee2406 | 26 | * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net> |
b129c659 | 27 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
1b87e0f5 | 28 | * Copyright 2016 Nexenta Systems, Inc. All rights reserved. |
788eb90c | 29 | * Copyright (c) 2014, Joyent, Inc. All rights reserved. |
4b2a3e0c | 30 | * Copyright (c) 2011, 2015 by Delphix. All rights reserved. |
9759c60f | 31 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
95fd54a1 | 32 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
a0bd735a | 33 | * Copyright (c) 2016 Actifio, Inc. All rights reserved. |
6f1ffb06 MA |
34 | */ |
35 | ||
36 | /* | |
37 | * ZFS ioctls. | |
38 | * | |
39 | * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage | |
40 | * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. | |
41 | * | |
42 | * There are two ways that we handle ioctls: the legacy way where almost | |
43 | * all of the logic is in the ioctl callback, and the new way where most | |
44 | * of the marshalling is handled in the common entry point, zfsdev_ioctl(). | |
45 | * | |
46 | * Non-legacy ioctls should be registered by calling | |
47 | * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked | |
48 | * from userland by lzc_ioctl(). | |
49 | * | |
50 | * The registration arguments are as follows: | |
51 | * | |
52 | * const char *name | |
53 | * The name of the ioctl. This is used for history logging. If the | |
54 | * ioctl returns successfully (the callback returns 0), and allow_log | |
55 | * is true, then a history log entry will be recorded with the input & | |
56 | * output nvlists. The log entry can be printed with "zpool history -i". | |
57 | * | |
58 | * zfs_ioc_t ioc | |
59 | * The ioctl request number, which userland will pass to ioctl(2). | |
60 | * The ioctl numbers can change from release to release, because | |
61 | * the caller (libzfs) must be matched to the kernel. | |
62 | * | |
63 | * zfs_secpolicy_func_t *secpolicy | |
64 | * This function will be called before the zfs_ioc_func_t, to | |
65 | * determine if this operation is permitted. It should return EPERM | |
66 | * on failure, and 0 on success. Checks include determining if the | |
67 | * dataset is visible in this zone, and if the user has either all | |
68 | * zfs privileges in the zone (SYS_MOUNT), or has been granted permission | |
69 | * to do this operation on this dataset with "zfs allow". | |
70 | * | |
71 | * zfs_ioc_namecheck_t namecheck | |
72 | * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool | |
73 | * name, a dataset name, or nothing. If the name is not well-formed, | |
74 | * the ioctl will fail and the callback will not be called. | |
75 | * Therefore, the callback can assume that the name is well-formed | |
76 | * (e.g. is null-terminated, doesn't have more than one '@' character, | |
77 | * doesn't have invalid characters). | |
78 | * | |
79 | * zfs_ioc_poolcheck_t pool_check | |
80 | * This specifies requirements on the pool state. If the pool does | |
81 | * not meet them (is suspended or is readonly), the ioctl will fail | |
82 | * and the callback will not be called. If any checks are specified | |
83 | * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. | |
84 | * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | | |
85 | * POOL_CHECK_READONLY). | |
86 | * | |
87 | * boolean_t smush_outnvlist | |
88 | * If smush_outnvlist is true, then the output is presumed to be a | |
89 | * list of errors, and it will be "smushed" down to fit into the | |
90 | * caller's buffer, by removing some entries and replacing them with a | |
91 | * single "N_MORE_ERRORS" entry indicating how many were removed. See | |
92 | * nvlist_smush() for details. If smush_outnvlist is false, and the | |
93 | * outnvlist does not fit into the userland-provided buffer, then the | |
94 | * ioctl will fail with ENOMEM. | |
95 | * | |
96 | * zfs_ioc_func_t *func | |
97 | * The callback function that will perform the operation. | |
98 | * | |
99 | * The callback should return 0 on success, or an error number on | |
100 | * failure. If the function fails, the userland ioctl will return -1, | |
101 | * and errno will be set to the callback's return value. The callback | |
102 | * will be called with the following arguments: | |
103 | * | |
104 | * const char *name | |
105 | * The name of the pool or dataset to operate on, from | |
106 | * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the | |
107 | * expected type (pool, dataset, or none). | |
108 | * | |
109 | * nvlist_t *innvl | |
110 | * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or | |
111 | * NULL if no input nvlist was provided. Changes to this nvlist are | |
112 | * ignored. If the input nvlist could not be deserialized, the | |
113 | * ioctl will fail and the callback will not be called. | |
114 | * | |
115 | * nvlist_t *outnvl | |
116 | * The output nvlist, initially empty. The callback can fill it in, | |
117 | * and it will be returned to userland by serializing it into | |
118 | * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization | |
119 | * fails (e.g. because the caller didn't supply a large enough | |
120 | * buffer), then the overall ioctl will fail. See the | |
121 | * 'smush_nvlist' argument above for additional behaviors. | |
122 | * | |
123 | * There are two typical uses of the output nvlist: | |
124 | * - To return state, e.g. property values. In this case, | |
125 | * smush_outnvlist should be false. If the buffer was not large | |
126 | * enough, the caller will reallocate a larger buffer and try | |
127 | * the ioctl again. | |
128 | * | |
129 | * - To return multiple errors from an ioctl which makes on-disk | |
130 | * changes. In this case, smush_outnvlist should be true. | |
131 | * Ioctls which make on-disk modifications should generally not | |
132 | * use the outnvl if they succeed, because the caller can not | |
133 | * distinguish between the operation failing, and | |
134 | * deserialization failing. | |
3541dc6d | 135 | */ |
34dc7c2f | 136 | |
34dc7c2f BB |
137 | #include <sys/types.h> |
138 | #include <sys/param.h> | |
139 | #include <sys/errno.h> | |
140 | #include <sys/uio.h> | |
141 | #include <sys/buf.h> | |
142 | #include <sys/modctl.h> | |
143 | #include <sys/open.h> | |
144 | #include <sys/file.h> | |
145 | #include <sys/kmem.h> | |
146 | #include <sys/conf.h> | |
147 | #include <sys/cmn_err.h> | |
148 | #include <sys/stat.h> | |
149 | #include <sys/zfs_ioctl.h> | |
428870ff | 150 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
151 | #include <sys/zfs_znode.h> |
152 | #include <sys/zap.h> | |
153 | #include <sys/spa.h> | |
154 | #include <sys/spa_impl.h> | |
155 | #include <sys/vdev.h> | |
428870ff | 156 | #include <sys/priv_impl.h> |
34dc7c2f BB |
157 | #include <sys/dmu.h> |
158 | #include <sys/dsl_dir.h> | |
159 | #include <sys/dsl_dataset.h> | |
160 | #include <sys/dsl_prop.h> | |
161 | #include <sys/dsl_deleg.h> | |
162 | #include <sys/dmu_objset.h> | |
37abac6d | 163 | #include <sys/dmu_impl.h> |
13fe0198 | 164 | #include <sys/dmu_tx.h> |
34dc7c2f BB |
165 | #include <sys/ddi.h> |
166 | #include <sys/sunddi.h> | |
167 | #include <sys/sunldi.h> | |
168 | #include <sys/policy.h> | |
169 | #include <sys/zone.h> | |
170 | #include <sys/nvpair.h> | |
171 | #include <sys/pathname.h> | |
172 | #include <sys/mount.h> | |
173 | #include <sys/sdt.h> | |
174 | #include <sys/fs/zfs.h> | |
ebe7e575 | 175 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 176 | #include <sys/zfs_dir.h> |
572e2857 | 177 | #include <sys/zfs_onexit.h> |
34dc7c2f | 178 | #include <sys/zvol.h> |
428870ff | 179 | #include <sys/dsl_scan.h> |
34dc7c2f | 180 | #include <sharefs/share.h> |
325f0235 BB |
181 | #include <sys/fm/util.h> |
182 | ||
13fe0198 MA |
183 | #include <sys/dmu_send.h> |
184 | #include <sys/dsl_destroy.h> | |
da536844 | 185 | #include <sys/dsl_bookmark.h> |
13fe0198 | 186 | #include <sys/dsl_userhold.h> |
9759c60f ED |
187 | #include <sys/zfeature.h> |
188 | ||
325f0235 | 189 | #include <linux/miscdevice.h> |
f74b821a | 190 | #include <linux/slab.h> |
34dc7c2f BB |
191 | |
192 | #include "zfs_namecheck.h" | |
193 | #include "zfs_prop.h" | |
194 | #include "zfs_deleg.h" | |
428870ff | 195 | #include "zfs_comutil.h" |
34dc7c2f | 196 | |
f74b821a BB |
197 | /* |
198 | * Limit maximum nvlist size. We don't want users passing in insane values | |
199 | * for zc->zc_nvlist_src_size, since we will need to allocate that much memory. | |
200 | */ | |
201 | #define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE | |
202 | ||
325f0235 | 203 | kmutex_t zfsdev_state_lock; |
3937ab20 | 204 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
205 | |
206 | extern void zfs_init(void); | |
207 | extern void zfs_fini(void); | |
208 | ||
6f1ffb06 MA |
209 | uint_t zfs_fsyncer_key; |
210 | extern uint_t rrw_tsd_key; | |
211 | static uint_t zfs_allow_log_key; | |
212 | ||
213 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
214 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
215 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 216 | |
9babb374 BB |
217 | typedef enum { |
218 | NO_NAME, | |
219 | POOL_NAME, | |
220 | DATASET_NAME | |
221 | } zfs_ioc_namecheck_t; | |
222 | ||
572e2857 BB |
223 | typedef enum { |
224 | POOL_CHECK_NONE = 1 << 0, | |
225 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 226 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
227 | } zfs_ioc_poolcheck_t; |
228 | ||
34dc7c2f | 229 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 230 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
231 | zfs_ioc_func_t *zvec_func; |
232 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 233 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 234 | boolean_t zvec_allow_log; |
572e2857 | 235 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
236 | boolean_t zvec_smush_outnvlist; |
237 | const char *zvec_name; | |
34dc7c2f BB |
238 | } zfs_ioc_vec_t; |
239 | ||
9babb374 BB |
240 | /* This array is indexed by zfs_userquota_prop_t */ |
241 | static const char *userquota_perms[] = { | |
242 | ZFS_DELEG_PERM_USERUSED, | |
243 | ZFS_DELEG_PERM_USERQUOTA, | |
244 | ZFS_DELEG_PERM_GROUPUSED, | |
245 | ZFS_DELEG_PERM_GROUPQUOTA, | |
246 | }; | |
247 | ||
248 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
249 | static int zfs_check_settable(const char *name, nvpair_t *property, |
250 | cred_t *cr); | |
251 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
252 | nvlist_t **errors); | |
b128c09f BB |
253 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
254 | boolean_t *); | |
6f1ffb06 MA |
255 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
256 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 257 | |
34dc7c2f BB |
258 | static void |
259 | history_str_free(char *buf) | |
260 | { | |
261 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
262 | } | |
263 | ||
264 | static char * | |
265 | history_str_get(zfs_cmd_t *zc) | |
266 | { | |
267 | char *buf; | |
268 | ||
b8864a23 | 269 | if (zc->zc_history == 0) |
34dc7c2f BB |
270 | return (NULL); |
271 | ||
efcd79a8 | 272 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); |
34dc7c2f BB |
273 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
274 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
275 | history_str_free(buf); | |
276 | return (NULL); | |
277 | } | |
278 | ||
279 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
280 | ||
281 | return (buf); | |
282 | } | |
283 | ||
284 | /* | |
b128c09f BB |
285 | * Check to see if the named dataset is currently defined as bootable |
286 | */ | |
287 | static boolean_t | |
288 | zfs_is_bootfs(const char *name) | |
289 | { | |
428870ff | 290 | objset_t *os; |
b128c09f | 291 | |
428870ff BB |
292 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
293 | boolean_t ret; | |
294 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
295 | dmu_objset_rele(os, FTAG); | |
296 | return (ret); | |
b128c09f | 297 | } |
428870ff | 298 | return (B_FALSE); |
b128c09f BB |
299 | } |
300 | ||
301 | /* | |
d3cc8b15 | 302 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
303 | */ |
304 | static int | |
b128c09f | 305 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 306 | { |
34dc7c2f BB |
307 | spa_t *spa; |
308 | ||
309 | if (spa_open(name, &spa, FTAG) == 0) { | |
310 | if (spa_version(spa) < version) { | |
311 | spa_close(spa, FTAG); | |
312 | return (1); | |
313 | } | |
314 | spa_close(spa, FTAG); | |
315 | } | |
316 | return (0); | |
317 | } | |
318 | ||
319 | /* | |
b128c09f | 320 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 321 | */ |
b128c09f BB |
322 | static boolean_t |
323 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
324 | { |
325 | objset_t *os; | |
b128c09f | 326 | boolean_t rc = B_TRUE; |
34dc7c2f | 327 | |
428870ff | 328 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 329 | uint64_t zplversion; |
34dc7c2f | 330 | |
428870ff BB |
331 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
332 | dmu_objset_rele(os, FTAG); | |
333 | return (B_TRUE); | |
334 | } | |
335 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
336 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
337 | rc = zplversion < version; | |
428870ff | 338 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
339 | } |
340 | return (rc); | |
341 | } | |
342 | ||
343 | static void | |
344 | zfs_log_history(zfs_cmd_t *zc) | |
345 | { | |
346 | spa_t *spa; | |
347 | char *buf; | |
348 | ||
349 | if ((buf = history_str_get(zc)) == NULL) | |
350 | return; | |
351 | ||
352 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
353 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 354 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
355 | spa_close(spa, FTAG); |
356 | } | |
357 | history_str_free(buf); | |
358 | } | |
359 | ||
360 | /* | |
361 | * Policy for top-level read operations (list pools). Requires no privileges, | |
362 | * and can be used in the local zone, as there is no associated dataset. | |
363 | */ | |
364 | /* ARGSUSED */ | |
365 | static int | |
6f1ffb06 | 366 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
367 | { |
368 | return (0); | |
369 | } | |
370 | ||
371 | /* | |
372 | * Policy for dataset read operations (list children, get statistics). Requires | |
373 | * no privileges, but must be visible in the local zone. | |
374 | */ | |
375 | /* ARGSUSED */ | |
376 | static int | |
6f1ffb06 | 377 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
378 | { |
379 | if (INGLOBALZONE(curproc) || | |
380 | zone_dataset_visible(zc->zc_name, NULL)) | |
381 | return (0); | |
382 | ||
2e528b49 | 383 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
384 | } |
385 | ||
386 | static int | |
572e2857 | 387 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 388 | { |
34dc7c2f BB |
389 | int writable = 1; |
390 | ||
391 | /* | |
392 | * The dataset must be visible by this zone -- check this first | |
393 | * so they don't see EPERM on something they shouldn't know about. | |
394 | */ | |
395 | if (!INGLOBALZONE(curproc) && | |
396 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 397 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 398 | |
34dc7c2f BB |
399 | if (INGLOBALZONE(curproc)) { |
400 | /* | |
401 | * If the fs is zoned, only root can access it from the | |
402 | * global zone. | |
403 | */ | |
404 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 405 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
406 | } else { |
407 | /* | |
408 | * If we are in a local zone, the 'zoned' property must be set. | |
409 | */ | |
410 | if (!zoned) | |
2e528b49 | 411 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
412 | |
413 | /* must be writable by this zone */ | |
414 | if (!writable) | |
2e528b49 | 415 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
416 | } |
417 | return (0); | |
418 | } | |
419 | ||
572e2857 BB |
420 | static int |
421 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
422 | { | |
423 | uint64_t zoned; | |
424 | ||
425 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 426 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
427 | |
428 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
429 | } | |
430 | ||
431 | static int | |
432 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
433 | { | |
434 | uint64_t zoned; | |
435 | ||
13fe0198 | 436 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 437 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
438 | |
439 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
440 | } | |
441 | ||
6f1ffb06 | 442 | static int |
13fe0198 MA |
443 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
444 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
445 | { |
446 | int error; | |
447 | ||
330d06f9 | 448 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
449 | if (error == 0) { |
450 | error = secpolicy_zfs(cr); | |
13fe0198 | 451 | if (error != 0) |
6f1ffb06 | 452 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
453 | } |
454 | return (error); | |
455 | } | |
456 | ||
6f1ffb06 | 457 | static int |
13fe0198 | 458 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
459 | { |
460 | int error; | |
13fe0198 MA |
461 | dsl_dataset_t *ds; |
462 | dsl_pool_t *dp; | |
572e2857 | 463 | |
13fe0198 MA |
464 | error = dsl_pool_hold(name, FTAG, &dp); |
465 | if (error != 0) | |
466 | return (error); | |
467 | ||
468 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
469 | if (error != 0) { | |
470 | dsl_pool_rele(dp, FTAG); | |
471 | return (error); | |
572e2857 | 472 | } |
13fe0198 MA |
473 | |
474 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
475 | ||
476 | dsl_dataset_rele(ds, FTAG); | |
477 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
478 | return (error); |
479 | } | |
480 | ||
428870ff BB |
481 | /* |
482 | * Policy for setting the security label property. | |
483 | * | |
484 | * Returns 0 for success, non-zero for access and other errors. | |
485 | */ | |
34dc7c2f | 486 | static int |
428870ff | 487 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 488 | { |
d2c15e84 | 489 | #ifdef HAVE_MLSLABEL |
428870ff BB |
490 | char ds_hexsl[MAXNAMELEN]; |
491 | bslabel_t ds_sl, new_sl; | |
492 | boolean_t new_default = FALSE; | |
493 | uint64_t zoned; | |
494 | int needed_priv = -1; | |
495 | int error; | |
496 | ||
497 | /* First get the existing dataset label. */ | |
498 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
499 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 500 | if (error != 0) |
2e528b49 | 501 | return (SET_ERROR(EPERM)); |
428870ff BB |
502 | |
503 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
504 | new_default = TRUE; | |
505 | ||
506 | /* The label must be translatable */ | |
507 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 508 | return (SET_ERROR(EINVAL)); |
428870ff BB |
509 | |
510 | /* | |
511 | * In a non-global zone, disallow attempts to set a label that | |
512 | * doesn't match that of the zone; otherwise no other checks | |
513 | * are needed. | |
514 | */ | |
515 | if (!INGLOBALZONE(curproc)) { | |
516 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 517 | return (SET_ERROR(EPERM)); |
428870ff BB |
518 | return (0); |
519 | } | |
520 | ||
521 | /* | |
522 | * For global-zone datasets (i.e., those whose zoned property is | |
523 | * "off", verify that the specified new label is valid for the | |
524 | * global zone. | |
525 | */ | |
526 | if (dsl_prop_get_integer(name, | |
527 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 528 | return (SET_ERROR(EPERM)); |
428870ff BB |
529 | if (!zoned) { |
530 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 531 | return (SET_ERROR(EPERM)); |
428870ff BB |
532 | } |
533 | ||
534 | /* | |
535 | * If the existing dataset label is nondefault, check if the | |
536 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 537 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
538 | * mounted (or isn't a dataset, doesn't exist, ...). |
539 | */ | |
540 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
541 | objset_t *os; | |
542 | static char *setsl_tag = "setsl_tag"; | |
543 | ||
544 | /* | |
545 | * Try to own the dataset; abort if there is any error, | |
546 | * (e.g., already mounted, in use, or other error). | |
547 | */ | |
548 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
549 | setsl_tag, &os); | |
13fe0198 | 550 | if (error != 0) |
2e528b49 | 551 | return (SET_ERROR(EPERM)); |
428870ff BB |
552 | |
553 | dmu_objset_disown(os, setsl_tag); | |
554 | ||
555 | if (new_default) { | |
556 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
557 | goto out_check; | |
558 | } | |
559 | ||
560 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 561 | return (SET_ERROR(EPERM)); |
428870ff BB |
562 | |
563 | if (blstrictdom(&ds_sl, &new_sl)) | |
564 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
565 | else if (blstrictdom(&new_sl, &ds_sl)) | |
566 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
567 | } else { | |
568 | /* dataset currently has a default label */ | |
569 | if (!new_default) | |
570 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
571 | } | |
572 | ||
573 | out_check: | |
574 | if (needed_priv != -1) | |
575 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
576 | return (0); | |
d2c15e84 | 577 | #else |
d1d7e268 | 578 | return (ENOTSUP); |
d2c15e84 | 579 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
580 | } |
581 | ||
582 | static int | |
583 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
584 | cred_t *cr) | |
585 | { | |
586 | char *strval; | |
587 | ||
34dc7c2f BB |
588 | /* |
589 | * Check permissions for special properties. | |
590 | */ | |
591 | switch (prop) { | |
e75c13c3 BB |
592 | default: |
593 | break; | |
34dc7c2f BB |
594 | case ZFS_PROP_ZONED: |
595 | /* | |
596 | * Disallow setting of 'zoned' from within a local zone. | |
597 | */ | |
598 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 599 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
600 | break; |
601 | ||
602 | case ZFS_PROP_QUOTA: | |
788eb90c JJ |
603 | case ZFS_PROP_FILESYSTEM_LIMIT: |
604 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
34dc7c2f BB |
605 | if (!INGLOBALZONE(curproc)) { |
606 | uint64_t zoned; | |
eca7b760 | 607 | char setpoint[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
608 | /* |
609 | * Unprivileged users are allowed to modify the | |
788eb90c | 610 | * limit on things *under* (ie. contained by) |
34dc7c2f BB |
611 | * the thing they own. |
612 | */ | |
428870ff | 613 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 614 | setpoint)) |
2e528b49 | 615 | return (SET_ERROR(EPERM)); |
428870ff | 616 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 617 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
618 | } |
619 | break; | |
428870ff BB |
620 | |
621 | case ZFS_PROP_MLSLABEL: | |
622 | if (!is_system_labeled()) | |
2e528b49 | 623 | return (SET_ERROR(EPERM)); |
428870ff BB |
624 | |
625 | if (nvpair_value_string(propval, &strval) == 0) { | |
626 | int err; | |
627 | ||
628 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
629 | if (err != 0) | |
630 | return (err); | |
631 | } | |
632 | break; | |
34dc7c2f BB |
633 | } |
634 | ||
428870ff | 635 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
636 | } |
637 | ||
6f1ffb06 MA |
638 | /* ARGSUSED */ |
639 | static int | |
640 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
641 | { |
642 | int error; | |
643 | ||
644 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 645 | if (error != 0) |
34dc7c2f BB |
646 | return (error); |
647 | ||
648 | /* | |
649 | * permission to set permissions will be evaluated later in | |
650 | * dsl_deleg_can_allow() | |
651 | */ | |
652 | return (0); | |
653 | } | |
654 | ||
6f1ffb06 MA |
655 | /* ARGSUSED */ |
656 | static int | |
657 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 658 | { |
428870ff BB |
659 | return (zfs_secpolicy_write_perms(zc->zc_name, |
660 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
661 | } |
662 | ||
6f1ffb06 MA |
663 | /* ARGSUSED */ |
664 | static int | |
665 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 666 | { |
572e2857 BB |
667 | dsl_pool_t *dp; |
668 | dsl_dataset_t *ds; | |
669 | char *cp; | |
670 | int error; | |
671 | ||
672 | /* | |
673 | * Generate the current snapshot name from the given objsetid, then | |
674 | * use that name for the secpolicy/zone checks. | |
675 | */ | |
676 | cp = strchr(zc->zc_name, '@'); | |
677 | if (cp == NULL) | |
2e528b49 | 678 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
679 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
680 | if (error != 0) | |
572e2857 BB |
681 | return (error); |
682 | ||
572e2857 | 683 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
684 | if (error != 0) { |
685 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 686 | return (error); |
13fe0198 | 687 | } |
572e2857 BB |
688 | |
689 | dsl_dataset_name(ds, zc->zc_name); | |
690 | ||
691 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
692 | ZFS_DELEG_PERM_SEND, cr); | |
693 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 694 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
695 | |
696 | return (error); | |
34dc7c2f BB |
697 | } |
698 | ||
6f1ffb06 MA |
699 | /* ARGSUSED */ |
700 | static int | |
701 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
702 | { | |
703 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
704 | ZFS_DELEG_PERM_SEND, cr)); | |
705 | } | |
706 | ||
3c9609b3 | 707 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 708 | /* ARGSUSED */ |
9babb374 | 709 | static int |
6f1ffb06 | 710 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
711 | { |
712 | vnode_t *vp; | |
713 | int error; | |
714 | ||
715 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
716 | NO_FOLLOW, NULL, &vp)) != 0) | |
717 | return (error); | |
718 | ||
719 | /* Now make sure mntpnt and dataset are ZFS */ | |
720 | ||
721 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
722 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
723 | zc->zc_name) != 0)) { | |
724 | VN_RELE(vp); | |
2e528b49 | 725 | return (SET_ERROR(EPERM)); |
9babb374 BB |
726 | } |
727 | ||
728 | VN_RELE(vp); | |
729 | return (dsl_deleg_access(zc->zc_name, | |
730 | ZFS_DELEG_PERM_SHARE, cr)); | |
731 | } | |
3c9609b3 | 732 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 733 | |
34dc7c2f | 734 | int |
6f1ffb06 | 735 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 736 | { |
3c9609b3 | 737 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 738 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 739 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
740 | |
741 | if (secpolicy_nfs(cr) == 0) { | |
742 | return (0); | |
743 | } else { | |
6f1ffb06 | 744 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 745 | } |
325f0235 | 746 | #else |
2e528b49 | 747 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 748 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 749 | } |
34dc7c2f | 750 | |
9babb374 | 751 | int |
6f1ffb06 | 752 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 753 | { |
3c9609b3 | 754 | #ifdef HAVE_SMB_SHARE |
9babb374 | 755 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 756 | return (SET_ERROR(EPERM)); |
34dc7c2f | 757 | |
9babb374 BB |
758 | if (secpolicy_smb(cr) == 0) { |
759 | return (0); | |
760 | } else { | |
6f1ffb06 | 761 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 762 | } |
325f0235 | 763 | #else |
2e528b49 | 764 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 765 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
766 | } |
767 | ||
768 | static int | |
769 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
770 | { | |
771 | char *cp; | |
772 | ||
773 | /* | |
774 | * Remove the @bla or /bla from the end of the name to get the parent. | |
775 | */ | |
776 | (void) strncpy(parent, datasetname, parentsize); | |
777 | cp = strrchr(parent, '@'); | |
778 | if (cp != NULL) { | |
779 | cp[0] = '\0'; | |
780 | } else { | |
781 | cp = strrchr(parent, '/'); | |
782 | if (cp == NULL) | |
2e528b49 | 783 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
784 | cp[0] = '\0'; |
785 | } | |
786 | ||
787 | return (0); | |
788 | } | |
789 | ||
790 | int | |
791 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
792 | { | |
793 | int error; | |
794 | ||
795 | if ((error = zfs_secpolicy_write_perms(name, | |
796 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
797 | return (error); | |
798 | ||
799 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
800 | } | |
801 | ||
6f1ffb06 | 802 | /* ARGSUSED */ |
34dc7c2f | 803 | static int |
6f1ffb06 | 804 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
805 | { |
806 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
807 | } | |
808 | ||
809 | /* | |
428870ff | 810 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 811 | * descendant mount and destroy permissions. |
34dc7c2f | 812 | */ |
6f1ffb06 | 813 | /* ARGSUSED */ |
34dc7c2f | 814 | static int |
6f1ffb06 | 815 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 816 | { |
6f1ffb06 MA |
817 | nvlist_t *snaps; |
818 | nvpair_t *pair, *nextpair; | |
819 | int error = 0; | |
428870ff | 820 | |
6f1ffb06 | 821 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 822 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
823 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
824 | pair = nextpair) { | |
6f1ffb06 | 825 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
826 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
827 | if (error == ENOENT) { | |
6f1ffb06 MA |
828 | /* |
829 | * Ignore any snapshots that don't exist (we consider | |
830 | * them "already destroyed"). Remove the name from the | |
831 | * nvl here in case the snapshot is created between | |
832 | * now and when we try to destroy it (in which case | |
833 | * we don't want to destroy it since we haven't | |
834 | * checked for permission). | |
835 | */ | |
836 | fnvlist_remove_nvpair(snaps, pair); | |
837 | error = 0; | |
6f1ffb06 | 838 | } |
6f1ffb06 MA |
839 | if (error != 0) |
840 | break; | |
841 | } | |
428870ff | 842 | |
428870ff | 843 | return (error); |
34dc7c2f BB |
844 | } |
845 | ||
846 | int | |
847 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
848 | { | |
eca7b760 | 849 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
850 | int error; |
851 | ||
852 | if ((error = zfs_secpolicy_write_perms(from, | |
853 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
854 | return (error); | |
855 | ||
856 | if ((error = zfs_secpolicy_write_perms(from, | |
857 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
858 | return (error); | |
859 | ||
860 | if ((error = zfs_get_parent(to, parentname, | |
861 | sizeof (parentname))) != 0) | |
862 | return (error); | |
863 | ||
864 | if ((error = zfs_secpolicy_write_perms(parentname, | |
865 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
866 | return (error); | |
867 | ||
868 | if ((error = zfs_secpolicy_write_perms(parentname, | |
869 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
870 | return (error); | |
871 | ||
872 | return (error); | |
873 | } | |
874 | ||
6f1ffb06 | 875 | /* ARGSUSED */ |
34dc7c2f | 876 | static int |
6f1ffb06 | 877 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
878 | { |
879 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
880 | } | |
881 | ||
6f1ffb06 | 882 | /* ARGSUSED */ |
34dc7c2f | 883 | static int |
6f1ffb06 | 884 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 885 | { |
13fe0198 MA |
886 | dsl_pool_t *dp; |
887 | dsl_dataset_t *clone; | |
34dc7c2f BB |
888 | int error; |
889 | ||
890 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
891 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
892 | if (error != 0) |
893 | return (error); | |
894 | ||
895 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
896 | if (error != 0) | |
34dc7c2f BB |
897 | return (error); |
898 | ||
13fe0198 | 899 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
900 | |
901 | if (error == 0) { | |
eca7b760 | 902 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 | 903 | dsl_dataset_t *origin = NULL; |
34dc7c2f | 904 | dsl_dir_t *dd; |
13fe0198 | 905 | dd = clone->ds_dir; |
34dc7c2f | 906 | |
b128c09f | 907 | error = dsl_dataset_hold_obj(dd->dd_pool, |
d683ddbb | 908 | dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin); |
13fe0198 MA |
909 | if (error != 0) { |
910 | dsl_dataset_rele(clone, FTAG); | |
911 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
912 | return (error); |
913 | } | |
914 | ||
13fe0198 | 915 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
916 | ZFS_DELEG_PERM_MOUNT, cr); |
917 | ||
13fe0198 MA |
918 | dsl_dataset_name(origin, parentname); |
919 | if (error == 0) { | |
920 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 921 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
922 | } |
923 | dsl_dataset_rele(clone, FTAG); | |
924 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 925 | } |
13fe0198 | 926 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
927 | return (error); |
928 | } | |
929 | ||
6f1ffb06 | 930 | /* ARGSUSED */ |
34dc7c2f | 931 | static int |
6f1ffb06 | 932 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
933 | { |
934 | int error; | |
935 | ||
936 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
937 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
938 | return (error); | |
939 | ||
940 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
941 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
942 | return (error); | |
943 | ||
944 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
945 | ZFS_DELEG_PERM_CREATE, cr)); | |
946 | } | |
947 | ||
43e52edd BB |
948 | /* ARGSUSED */ |
949 | static int | |
950 | zfs_secpolicy_recv_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
951 | { | |
952 | return (zfs_secpolicy_recv(zc, innvl, cr)); | |
953 | } | |
954 | ||
34dc7c2f BB |
955 | int |
956 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
957 | { | |
428870ff BB |
958 | return (zfs_secpolicy_write_perms(name, |
959 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
960 | } |
961 | ||
6f1ffb06 MA |
962 | /* |
963 | * Check for permission to create each snapshot in the nvlist. | |
964 | */ | |
965 | /* ARGSUSED */ | |
34dc7c2f | 966 | static int |
6f1ffb06 | 967 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 968 | { |
6f1ffb06 MA |
969 | nvlist_t *snaps; |
970 | int error = 0; | |
971 | nvpair_t *pair; | |
972 | ||
973 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 974 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
975 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
976 | pair = nvlist_next_nvpair(snaps, pair)) { | |
977 | char *name = nvpair_name(pair); | |
978 | char *atp = strchr(name, '@'); | |
34dc7c2f | 979 | |
6f1ffb06 | 980 | if (atp == NULL) { |
2e528b49 | 981 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
982 | break; |
983 | } | |
984 | *atp = '\0'; | |
985 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
986 | *atp = '@'; | |
987 | if (error != 0) | |
988 | break; | |
989 | } | |
990 | return (error); | |
991 | } | |
992 | ||
da536844 MA |
993 | /* |
994 | * Check for permission to create each snapshot in the nvlist. | |
995 | */ | |
996 | /* ARGSUSED */ | |
997 | static int | |
998 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
999 | { | |
1000 | int error = 0; | |
1001 | nvpair_t *pair; | |
1002 | ||
1003 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
1004 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
1005 | char *name = nvpair_name(pair); | |
1006 | char *hashp = strchr(name, '#'); | |
1007 | ||
1008 | if (hashp == NULL) { | |
1009 | error = SET_ERROR(EINVAL); | |
1010 | break; | |
1011 | } | |
1012 | *hashp = '\0'; | |
1013 | error = zfs_secpolicy_write_perms(name, | |
1014 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
1015 | *hashp = '#'; | |
1016 | if (error != 0) | |
1017 | break; | |
1018 | } | |
1019 | return (error); | |
1020 | } | |
1021 | ||
1022 | /* ARGSUSED */ | |
1023 | static int | |
1024 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1025 | { | |
1026 | nvpair_t *pair, *nextpair; | |
1027 | int error = 0; | |
1028 | ||
1029 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1030 | pair = nextpair) { | |
1031 | char *name = nvpair_name(pair); | |
1032 | char *hashp = strchr(name, '#'); | |
1033 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1034 | ||
1035 | if (hashp == NULL) { | |
1036 | error = SET_ERROR(EINVAL); | |
1037 | break; | |
1038 | } | |
1039 | ||
1040 | *hashp = '\0'; | |
1041 | error = zfs_secpolicy_write_perms(name, | |
1042 | ZFS_DELEG_PERM_DESTROY, cr); | |
1043 | *hashp = '#'; | |
1044 | if (error == ENOENT) { | |
1045 | /* | |
1046 | * Ignore any filesystems that don't exist (we consider | |
1047 | * their bookmarks "already destroyed"). Remove | |
1048 | * the name from the nvl here in case the filesystem | |
1049 | * is created between now and when we try to destroy | |
1050 | * the bookmark (in which case we don't want to | |
1051 | * destroy it since we haven't checked for permission). | |
1052 | */ | |
1053 | fnvlist_remove_nvpair(innvl, pair); | |
1054 | error = 0; | |
1055 | } | |
1056 | if (error != 0) | |
1057 | break; | |
1058 | } | |
1059 | ||
1060 | return (error); | |
1061 | } | |
1062 | ||
6f1ffb06 MA |
1063 | /* ARGSUSED */ |
1064 | static int | |
1065 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1066 | { | |
1067 | /* | |
1068 | * Even root must have a proper TSD so that we know what pool | |
1069 | * to log to. | |
1070 | */ | |
1071 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1072 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1073 | return (0); |
34dc7c2f BB |
1074 | } |
1075 | ||
1076 | static int | |
6f1ffb06 | 1077 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1078 | { |
eca7b760 | 1079 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff | 1080 | int error; |
6f1ffb06 | 1081 | char *origin; |
34dc7c2f BB |
1082 | |
1083 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1084 | sizeof (parentname))) != 0) | |
1085 | return (error); | |
1086 | ||
6f1ffb06 MA |
1087 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1088 | (error = zfs_secpolicy_write_perms(origin, | |
1089 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1090 | return (error); | |
34dc7c2f BB |
1091 | |
1092 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1093 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1094 | return (error); | |
1095 | ||
6f1ffb06 MA |
1096 | return (zfs_secpolicy_write_perms(parentname, |
1097 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1098 | } |
1099 | ||
34dc7c2f BB |
1100 | /* |
1101 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1102 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1103 | */ | |
1104 | /* ARGSUSED */ | |
1105 | static int | |
6f1ffb06 | 1106 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1107 | { |
1108 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1109 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1110 | |
1111 | return (0); | |
1112 | } | |
1113 | ||
572e2857 BB |
1114 | /* |
1115 | * Policy for object to name lookups. | |
1116 | */ | |
1117 | /* ARGSUSED */ | |
1118 | static int | |
6f1ffb06 | 1119 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1120 | { |
1121 | int error; | |
1122 | ||
1123 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1124 | return (0); | |
1125 | ||
1126 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1127 | return (error); | |
1128 | } | |
1129 | ||
34dc7c2f BB |
1130 | /* |
1131 | * Policy for fault injection. Requires all privileges. | |
1132 | */ | |
1133 | /* ARGSUSED */ | |
1134 | static int | |
6f1ffb06 | 1135 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1136 | { |
1137 | return (secpolicy_zinject(cr)); | |
1138 | } | |
1139 | ||
6f1ffb06 | 1140 | /* ARGSUSED */ |
34dc7c2f | 1141 | static int |
6f1ffb06 | 1142 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1143 | { |
1144 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1145 | ||
1146 | if (prop == ZPROP_INVAL) { | |
1147 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1148 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1149 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1150 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1151 | } else { | |
428870ff BB |
1152 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1153 | NULL, cr)); | |
34dc7c2f BB |
1154 | } |
1155 | } | |
1156 | ||
9babb374 | 1157 | static int |
6f1ffb06 | 1158 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1159 | { |
6f1ffb06 | 1160 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1161 | if (err) |
1162 | return (err); | |
1163 | ||
1164 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1165 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1166 | |
1167 | if (zc->zc_value[0] == 0) { | |
1168 | /* | |
1169 | * They are asking about a posix uid/gid. If it's | |
1170 | * themself, allow it. | |
1171 | */ | |
1172 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1173 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
1174 | if (zc->zc_guid == crgetuid(cr)) | |
1175 | return (0); | |
1176 | } else { | |
1177 | if (groupmember(zc->zc_guid, cr)) | |
1178 | return (0); | |
1179 | } | |
1180 | } | |
1181 | ||
1182 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1183 | userquota_perms[zc->zc_objset_type], cr)); | |
1184 | } | |
1185 | ||
1186 | static int | |
6f1ffb06 | 1187 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1188 | { |
6f1ffb06 | 1189 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1190 | if (err) |
1191 | return (err); | |
1192 | ||
1193 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1194 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1195 | |
1196 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1197 | userquota_perms[zc->zc_objset_type], cr)); | |
1198 | } | |
1199 | ||
6f1ffb06 | 1200 | /* ARGSUSED */ |
9babb374 | 1201 | static int |
6f1ffb06 | 1202 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1203 | { |
428870ff BB |
1204 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1205 | NULL, cr)); | |
9babb374 BB |
1206 | } |
1207 | ||
6f1ffb06 | 1208 | /* ARGSUSED */ |
45d1cae3 | 1209 | static int |
6f1ffb06 | 1210 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1211 | { |
13fe0198 MA |
1212 | nvpair_t *pair; |
1213 | nvlist_t *holds; | |
1214 | int error; | |
1215 | ||
1216 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1217 | if (error != 0) | |
2e528b49 | 1218 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
1219 | |
1220 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1221 | pair = nvlist_next_nvpair(holds, pair)) { | |
eca7b760 | 1222 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1223 | error = dmu_fsname(nvpair_name(pair), fsname); |
1224 | if (error != 0) | |
1225 | return (error); | |
1226 | error = zfs_secpolicy_write_perms(fsname, | |
1227 | ZFS_DELEG_PERM_HOLD, cr); | |
1228 | if (error != 0) | |
1229 | return (error); | |
1230 | } | |
1231 | return (0); | |
45d1cae3 BB |
1232 | } |
1233 | ||
6f1ffb06 | 1234 | /* ARGSUSED */ |
45d1cae3 | 1235 | static int |
6f1ffb06 | 1236 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1237 | { |
13fe0198 MA |
1238 | nvpair_t *pair; |
1239 | int error; | |
1240 | ||
1241 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1242 | pair = nvlist_next_nvpair(innvl, pair)) { | |
eca7b760 | 1243 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1244 | error = dmu_fsname(nvpair_name(pair), fsname); |
1245 | if (error != 0) | |
1246 | return (error); | |
1247 | error = zfs_secpolicy_write_perms(fsname, | |
1248 | ZFS_DELEG_PERM_RELEASE, cr); | |
1249 | if (error != 0) | |
1250 | return (error); | |
1251 | } | |
1252 | return (0); | |
45d1cae3 BB |
1253 | } |
1254 | ||
572e2857 BB |
1255 | /* |
1256 | * Policy for allowing temporary snapshots to be taken or released | |
1257 | */ | |
1258 | static int | |
6f1ffb06 | 1259 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1260 | { |
1261 | /* | |
1262 | * A temporary snapshot is the same as a snapshot, | |
1263 | * hold, destroy and release all rolled into one. | |
1264 | * Delegated diff alone is sufficient that we allow this. | |
1265 | */ | |
1266 | int error; | |
1267 | ||
1268 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1269 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1270 | return (0); | |
1271 | ||
6f1ffb06 | 1272 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1273 | if (error == 0) |
6f1ffb06 | 1274 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1275 | if (error == 0) |
6f1ffb06 | 1276 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1277 | if (error == 0) |
6f1ffb06 | 1278 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1279 | return (error); |
1280 | } | |
1281 | ||
34dc7c2f BB |
1282 | /* |
1283 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1284 | */ | |
1285 | static int | |
9babb374 | 1286 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1287 | { |
1288 | char *packed; | |
1289 | int error; | |
1290 | nvlist_t *list = NULL; | |
1291 | ||
1292 | /* | |
1293 | * Read in and unpack the user-supplied nvlist. | |
1294 | */ | |
1295 | if (size == 0) | |
2e528b49 | 1296 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1297 | |
77aef6f6 | 1298 | packed = vmem_alloc(size, KM_SLEEP); |
34dc7c2f | 1299 | |
9babb374 BB |
1300 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1301 | iflag)) != 0) { | |
77aef6f6 | 1302 | vmem_free(packed, size); |
0de7c552 | 1303 | return (SET_ERROR(EFAULT)); |
34dc7c2f BB |
1304 | } |
1305 | ||
1306 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
77aef6f6 | 1307 | vmem_free(packed, size); |
34dc7c2f BB |
1308 | return (error); |
1309 | } | |
1310 | ||
77aef6f6 | 1311 | vmem_free(packed, size); |
34dc7c2f BB |
1312 | |
1313 | *nvp = list; | |
1314 | return (0); | |
1315 | } | |
1316 | ||
6f1ffb06 MA |
1317 | /* |
1318 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1319 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1320 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1321 | * removed. | |
1322 | */ | |
428870ff | 1323 | static int |
6f1ffb06 | 1324 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1325 | { |
1326 | size_t size; | |
1327 | ||
6f1ffb06 | 1328 | size = fnvlist_size(errors); |
428870ff | 1329 | |
6f1ffb06 | 1330 | if (size > max) { |
428870ff BB |
1331 | nvpair_t *more_errors; |
1332 | int n = 0; | |
1333 | ||
6f1ffb06 | 1334 | if (max < 1024) |
2e528b49 | 1335 | return (SET_ERROR(ENOMEM)); |
428870ff | 1336 | |
6f1ffb06 MA |
1337 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1338 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1339 | |
1340 | do { | |
6f1ffb06 | 1341 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1342 | more_errors); |
6f1ffb06 | 1343 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1344 | n++; |
6f1ffb06 MA |
1345 | size = fnvlist_size(errors); |
1346 | } while (size > max); | |
428870ff | 1347 | |
6f1ffb06 MA |
1348 | fnvlist_remove_nvpair(errors, more_errors); |
1349 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1350 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1351 | } |
1352 | ||
1353 | return (0); | |
1354 | } | |
1355 | ||
34dc7c2f BB |
1356 | static int |
1357 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1358 | { | |
1359 | char *packed = NULL; | |
428870ff | 1360 | int error = 0; |
34dc7c2f | 1361 | size_t size; |
34dc7c2f | 1362 | |
6f1ffb06 | 1363 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1364 | |
1365 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1366 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1367 | } else { |
6f1ffb06 | 1368 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1369 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1370 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1371 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1372 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1373 | } |
1374 | ||
1375 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1376 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1377 | return (error); |
1378 | } | |
1379 | ||
9babb374 | 1380 | static int |
3558fd73 | 1381 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1382 | { |
1383 | objset_t *os; | |
1384 | int error; | |
1385 | ||
428870ff | 1386 | error = dmu_objset_hold(dsname, FTAG, &os); |
13fe0198 | 1387 | if (error != 0) |
9babb374 | 1388 | return (error); |
428870ff BB |
1389 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1390 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1391 | return (SET_ERROR(EINVAL)); |
428870ff | 1392 | } |
9babb374 | 1393 | |
428870ff | 1394 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1395 | *zsbp = dmu_objset_get_user(os); |
061460df CC |
1396 | /* bump s_active only when non-zero to prevent umount race */ |
1397 | if (*zsbp == NULL || (*zsbp)->z_sb == NULL || | |
1398 | !atomic_inc_not_zero(&((*zsbp)->z_sb->s_active))) { | |
2e528b49 | 1399 | error = SET_ERROR(ESRCH); |
9babb374 | 1400 | } |
428870ff BB |
1401 | mutex_exit(&os->os_user_ptr_lock); |
1402 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1403 | return (error); |
1404 | } | |
1405 | ||
1406 | /* | |
3558fd73 | 1407 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1408 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1409 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1410 | * which prevents all inode ops from running. | |
9babb374 BB |
1411 | */ |
1412 | static int | |
3558fd73 | 1413 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1414 | { |
1415 | int error = 0; | |
9babb374 | 1416 | |
3558fd73 | 1417 | if (get_zfs_sb(name, zsbp) != 0) |
0282c413 | 1418 | error = zfs_sb_create(name, NULL, zsbp); |
9babb374 | 1419 | if (error == 0) { |
e16b3fcc | 1420 | rrm_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1421 | RW_READER, tag); |
3558fd73 | 1422 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1423 | /* |
1424 | * XXX we could probably try again, since the unmounting | |
1425 | * thread should be just about to disassociate the | |
831baf06 | 1426 | * objset from the zsb. |
9babb374 | 1427 | */ |
e16b3fcc | 1428 | rrm_exit(&(*zsbp)->z_teardown_lock, tag); |
2e528b49 | 1429 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1430 | } |
1431 | } | |
1432 | return (error); | |
1433 | } | |
1434 | ||
1435 | static void | |
3558fd73 | 1436 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1437 | { |
e16b3fcc | 1438 | rrm_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1439 | |
2cf7f52b BB |
1440 | if (zsb->z_sb) { |
1441 | deactivate_super(zsb->z_sb); | |
9babb374 | 1442 | } else { |
3558fd73 BB |
1443 | dmu_objset_disown(zsb->z_os, zsb); |
1444 | zfs_sb_free(zsb); | |
9babb374 BB |
1445 | } |
1446 | } | |
1447 | ||
34dc7c2f BB |
1448 | static int |
1449 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1450 | { | |
1451 | int error; | |
1452 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1453 | nvlist_t *rootprops = NULL; |
1454 | nvlist_t *zplprops = NULL; | |
34dc7c2f | 1455 | |
c65aa5b2 BB |
1456 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1457 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1458 | return (error); |
1459 | ||
1460 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1461 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1462 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1463 | nvlist_free(config); |
1464 | return (error); | |
1465 | } | |
1466 | ||
b128c09f BB |
1467 | if (props) { |
1468 | nvlist_t *nvl = NULL; | |
1469 | uint64_t version = SPA_VERSION; | |
1470 | ||
1471 | (void) nvlist_lookup_uint64(props, | |
1472 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1473 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1474 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1475 | goto pool_props_bad; |
1476 | } | |
1477 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1478 | if (nvl) { | |
1479 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1480 | if (error != 0) { | |
1481 | nvlist_free(config); | |
1482 | nvlist_free(props); | |
1483 | return (error); | |
1484 | } | |
1485 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1486 | } | |
1487 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1488 | error = zfs_fill_zplprops_root(version, rootprops, | |
1489 | zplprops, NULL); | |
13fe0198 | 1490 | if (error != 0) |
b128c09f BB |
1491 | goto pool_props_bad; |
1492 | } | |
1493 | ||
6f1ffb06 | 1494 | error = spa_create(zc->zc_name, config, props, zplprops); |
b128c09f BB |
1495 | |
1496 | /* | |
1497 | * Set the remaining root properties | |
1498 | */ | |
428870ff BB |
1499 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1500 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1501 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1502 | |
b128c09f BB |
1503 | pool_props_bad: |
1504 | nvlist_free(rootprops); | |
1505 | nvlist_free(zplprops); | |
34dc7c2f | 1506 | nvlist_free(config); |
b128c09f | 1507 | nvlist_free(props); |
34dc7c2f BB |
1508 | |
1509 | return (error); | |
1510 | } | |
1511 | ||
1512 | static int | |
1513 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1514 | { | |
1515 | int error; | |
1516 | zfs_log_history(zc); | |
1517 | error = spa_destroy(zc->zc_name); | |
a0bd735a | 1518 | |
34dc7c2f BB |
1519 | return (error); |
1520 | } | |
1521 | ||
1522 | static int | |
1523 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1524 | { | |
34dc7c2f BB |
1525 | nvlist_t *config, *props = NULL; |
1526 | uint64_t guid; | |
428870ff | 1527 | int error; |
34dc7c2f BB |
1528 | |
1529 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1530 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1531 | return (error); |
1532 | ||
1533 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1534 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1535 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1536 | nvlist_free(config); |
1537 | return (error); | |
1538 | } | |
1539 | ||
1540 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1541 | guid != zc->zc_guid) | |
2e528b49 | 1542 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1543 | else |
572e2857 | 1544 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1545 | |
572e2857 BB |
1546 | if (zc->zc_nvlist_dst != 0) { |
1547 | int err; | |
1548 | ||
1549 | if ((err = put_nvlist(zc, config)) != 0) | |
1550 | error = err; | |
1551 | } | |
428870ff | 1552 | |
34dc7c2f | 1553 | nvlist_free(config); |
8a5fc748 | 1554 | nvlist_free(props); |
34dc7c2f BB |
1555 | |
1556 | return (error); | |
1557 | } | |
1558 | ||
1559 | static int | |
1560 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1561 | { | |
1562 | int error; | |
b128c09f | 1563 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1564 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1565 | |
34dc7c2f | 1566 | zfs_log_history(zc); |
fb5f0bc8 | 1567 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
a0bd735a | 1568 | |
34dc7c2f BB |
1569 | return (error); |
1570 | } | |
1571 | ||
1572 | static int | |
1573 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1574 | { | |
1575 | nvlist_t *configs; | |
1576 | int error; | |
1577 | ||
1578 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1579 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1580 | |
1581 | error = put_nvlist(zc, configs); | |
1582 | ||
1583 | nvlist_free(configs); | |
1584 | ||
1585 | return (error); | |
1586 | } | |
1587 | ||
9ae529ec CS |
1588 | /* |
1589 | * inputs: | |
1590 | * zc_name name of the pool | |
1591 | * | |
1592 | * outputs: | |
1593 | * zc_cookie real errno | |
1594 | * zc_nvlist_dst config nvlist | |
1595 | * zc_nvlist_dst_size size of config nvlist | |
1596 | */ | |
34dc7c2f BB |
1597 | static int |
1598 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1599 | { | |
1600 | nvlist_t *config; | |
1601 | int error; | |
1602 | int ret = 0; | |
1603 | ||
1604 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1605 | sizeof (zc->zc_value)); | |
1606 | ||
1607 | if (config != NULL) { | |
1608 | ret = put_nvlist(zc, config); | |
1609 | nvlist_free(config); | |
1610 | ||
1611 | /* | |
1612 | * The config may be present even if 'error' is non-zero. | |
1613 | * In this case we return success, and preserve the real errno | |
1614 | * in 'zc_cookie'. | |
1615 | */ | |
1616 | zc->zc_cookie = error; | |
1617 | } else { | |
1618 | ret = error; | |
1619 | } | |
1620 | ||
1621 | return (ret); | |
1622 | } | |
1623 | ||
1624 | /* | |
1625 | * Try to import the given pool, returning pool stats as appropriate so that | |
1626 | * user land knows which devices are available and overall pool health. | |
1627 | */ | |
1628 | static int | |
1629 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1630 | { | |
1631 | nvlist_t *tryconfig, *config; | |
1632 | int error; | |
1633 | ||
1634 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1635 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1636 | return (error); |
1637 | ||
1638 | config = spa_tryimport(tryconfig); | |
1639 | ||
1640 | nvlist_free(tryconfig); | |
1641 | ||
1642 | if (config == NULL) | |
2e528b49 | 1643 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1644 | |
1645 | error = put_nvlist(zc, config); | |
1646 | nvlist_free(config); | |
1647 | ||
1648 | return (error); | |
1649 | } | |
1650 | ||
428870ff BB |
1651 | /* |
1652 | * inputs: | |
1653 | * zc_name name of the pool | |
1654 | * zc_cookie scan func (pool_scan_func_t) | |
1655 | */ | |
34dc7c2f | 1656 | static int |
428870ff | 1657 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1658 | { |
1659 | spa_t *spa; | |
1660 | int error; | |
1661 | ||
1662 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1663 | return (error); | |
1664 | ||
428870ff BB |
1665 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1666 | error = spa_scan_stop(spa); | |
1667 | else | |
1668 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1669 | |
1670 | spa_close(spa, FTAG); | |
1671 | ||
1672 | return (error); | |
1673 | } | |
1674 | ||
1675 | static int | |
1676 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1677 | { | |
1678 | spa_t *spa; | |
1679 | int error; | |
1680 | ||
1681 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1682 | if (error == 0) { | |
1683 | spa_freeze(spa); | |
1684 | spa_close(spa, FTAG); | |
1685 | } | |
1686 | return (error); | |
1687 | } | |
1688 | ||
1689 | static int | |
1690 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1691 | { | |
1692 | spa_t *spa; | |
1693 | int error; | |
1694 | ||
1695 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1696 | return (error); | |
1697 | ||
9ae529ec CS |
1698 | if (zc->zc_cookie < spa_version(spa) || |
1699 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1700 | spa_close(spa, FTAG); |
2e528b49 | 1701 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1702 | } |
1703 | ||
1704 | spa_upgrade(spa, zc->zc_cookie); | |
1705 | spa_close(spa, FTAG); | |
1706 | ||
1707 | return (error); | |
1708 | } | |
1709 | ||
1710 | static int | |
1711 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1712 | { | |
1713 | spa_t *spa; | |
1714 | char *hist_buf; | |
1715 | uint64_t size; | |
1716 | int error; | |
1717 | ||
1718 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1719 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1720 | |
1721 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1722 | return (error); | |
1723 | ||
1724 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1725 | spa_close(spa, FTAG); | |
2e528b49 | 1726 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1727 | } |
1728 | ||
34b84cb8 | 1729 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1730 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1731 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1732 | error = ddi_copyout(hist_buf, |
1733 | (void *)(uintptr_t)zc->zc_history, | |
1734 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1735 | } |
1736 | ||
1737 | spa_close(spa, FTAG); | |
34b84cb8 | 1738 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1739 | return (error); |
1740 | } | |
1741 | ||
3541dc6d GA |
1742 | static int |
1743 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1744 | { | |
1745 | spa_t *spa; | |
1746 | int error; | |
1747 | ||
1748 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1749 | if (error == 0) { | |
1750 | error = spa_change_guid(spa); | |
1751 | spa_close(spa, FTAG); | |
1752 | } | |
1753 | return (error); | |
1754 | } | |
1755 | ||
34dc7c2f BB |
1756 | static int |
1757 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1758 | { | |
13fe0198 | 1759 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1760 | } |
1761 | ||
428870ff BB |
1762 | /* |
1763 | * inputs: | |
1764 | * zc_name name of filesystem | |
1765 | * zc_obj object to find | |
1766 | * | |
1767 | * outputs: | |
1768 | * zc_value name of object | |
1769 | */ | |
34dc7c2f BB |
1770 | static int |
1771 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1772 | { | |
428870ff | 1773 | objset_t *os; |
34dc7c2f BB |
1774 | int error; |
1775 | ||
428870ff BB |
1776 | /* XXX reading from objset not owned */ |
1777 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1778 | return (error); |
428870ff BB |
1779 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1780 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1781 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1782 | } |
1783 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1784 | sizeof (zc->zc_value)); |
428870ff | 1785 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1786 | |
1787 | return (error); | |
1788 | } | |
1789 | ||
572e2857 BB |
1790 | /* |
1791 | * inputs: | |
1792 | * zc_name name of filesystem | |
1793 | * zc_obj object to find | |
1794 | * | |
1795 | * outputs: | |
1796 | * zc_stat stats on object | |
1797 | * zc_value path to object | |
1798 | */ | |
1799 | static int | |
1800 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1801 | { | |
1802 | objset_t *os; | |
1803 | int error; | |
1804 | ||
1805 | /* XXX reading from objset not owned */ | |
1806 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1807 | return (error); | |
1808 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1809 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1810 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1811 | } |
1812 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1813 | sizeof (zc->zc_value)); | |
1814 | dmu_objset_rele(os, FTAG); | |
1815 | ||
1816 | return (error); | |
1817 | } | |
1818 | ||
34dc7c2f BB |
1819 | static int |
1820 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1821 | { | |
1822 | spa_t *spa; | |
1823 | int error; | |
64ad2b26 | 1824 | nvlist_t *config; |
34dc7c2f BB |
1825 | |
1826 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1827 | if (error != 0) | |
1828 | return (error); | |
1829 | ||
1830 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1831 | zc->zc_iflags, &config); |
34dc7c2f BB |
1832 | if (error == 0) { |
1833 | error = spa_vdev_add(spa, config); | |
1834 | nvlist_free(config); | |
1835 | } | |
1836 | spa_close(spa, FTAG); | |
1837 | return (error); | |
1838 | } | |
1839 | ||
428870ff BB |
1840 | /* |
1841 | * inputs: | |
1842 | * zc_name name of the pool | |
1843 | * zc_nvlist_conf nvlist of devices to remove | |
1844 | * zc_cookie to stop the remove? | |
1845 | */ | |
34dc7c2f BB |
1846 | static int |
1847 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1848 | { | |
1849 | spa_t *spa; | |
1850 | int error; | |
1851 | ||
1852 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1853 | if (error != 0) | |
1854 | return (error); | |
1855 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1856 | spa_close(spa, FTAG); | |
1857 | return (error); | |
1858 | } | |
1859 | ||
1860 | static int | |
1861 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1862 | { | |
1863 | spa_t *spa; | |
1864 | int error; | |
1865 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1866 | ||
1867 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1868 | return (error); | |
1869 | switch (zc->zc_cookie) { | |
1870 | case VDEV_STATE_ONLINE: | |
1871 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1872 | break; | |
1873 | ||
1874 | case VDEV_STATE_OFFLINE: | |
1875 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1876 | break; | |
1877 | ||
1878 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1879 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1880 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1881 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1882 | ||
1883 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1884 | break; |
1885 | ||
1886 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1887 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1888 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1889 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1890 | ||
1891 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1892 | break; |
1893 | ||
1894 | default: | |
2e528b49 | 1895 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
1896 | } |
1897 | zc->zc_cookie = newstate; | |
1898 | spa_close(spa, FTAG); | |
1899 | return (error); | |
1900 | } | |
1901 | ||
1902 | static int | |
1903 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1904 | { | |
1905 | spa_t *spa; | |
1906 | int replacing = zc->zc_cookie; | |
1907 | nvlist_t *config; | |
1908 | int error; | |
1909 | ||
1910 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1911 | return (error); | |
1912 | ||
1913 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1914 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1915 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1916 | nvlist_free(config); | |
1917 | } | |
1918 | ||
1919 | spa_close(spa, FTAG); | |
1920 | return (error); | |
1921 | } | |
1922 | ||
1923 | static int | |
1924 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1925 | { | |
1926 | spa_t *spa; | |
1927 | int error; | |
1928 | ||
1929 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1930 | return (error); | |
1931 | ||
fb5f0bc8 | 1932 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1933 | |
1934 | spa_close(spa, FTAG); | |
1935 | return (error); | |
1936 | } | |
1937 | ||
428870ff BB |
1938 | static int |
1939 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1940 | { | |
1941 | spa_t *spa; | |
1942 | nvlist_t *config, *props = NULL; | |
1943 | int error; | |
1944 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1945 | ||
1946 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1947 | return (error); | |
1948 | ||
c65aa5b2 BB |
1949 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1950 | zc->zc_iflags, &config))) { | |
428870ff BB |
1951 | spa_close(spa, FTAG); |
1952 | return (error); | |
1953 | } | |
1954 | ||
1955 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1956 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1957 | zc->zc_iflags, &props))) { | |
1958 | spa_close(spa, FTAG); | |
1959 | nvlist_free(config); | |
1960 | return (error); | |
1961 | } | |
1962 | ||
1963 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1964 | ||
1965 | spa_close(spa, FTAG); | |
1966 | ||
1967 | nvlist_free(config); | |
1968 | nvlist_free(props); | |
1969 | ||
1970 | return (error); | |
1971 | } | |
1972 | ||
34dc7c2f BB |
1973 | static int |
1974 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1975 | { | |
1976 | spa_t *spa; | |
1977 | char *path = zc->zc_value; | |
1978 | uint64_t guid = zc->zc_guid; | |
1979 | int error; | |
1980 | ||
1981 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1982 | if (error != 0) | |
1983 | return (error); | |
1984 | ||
1985 | error = spa_vdev_setpath(spa, guid, path); | |
1986 | spa_close(spa, FTAG); | |
1987 | return (error); | |
1988 | } | |
1989 | ||
9babb374 BB |
1990 | static int |
1991 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1992 | { | |
1993 | spa_t *spa; | |
1994 | char *fru = zc->zc_value; | |
1995 | uint64_t guid = zc->zc_guid; | |
1996 | int error; | |
1997 | ||
1998 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1999 | if (error != 0) | |
2000 | return (error); | |
2001 | ||
2002 | error = spa_vdev_setfru(spa, guid, fru); | |
2003 | spa_close(spa, FTAG); | |
2004 | return (error); | |
2005 | } | |
2006 | ||
34dc7c2f | 2007 | static int |
572e2857 | 2008 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 2009 | { |
572e2857 | 2010 | int error = 0; |
34dc7c2f BB |
2011 | nvlist_t *nv; |
2012 | ||
34dc7c2f BB |
2013 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2014 | ||
2015 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2016 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2017 | dmu_objset_stats(os, nv); |
2018 | /* | |
2019 | * NB: zvol_get_stats() will read the objset contents, | |
2020 | * which we aren't supposed to do with a | |
b128c09f | 2021 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2022 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2023 | * XXX reading with out owning |
34dc7c2f | 2024 | */ |
330d06f9 MA |
2025 | if (!zc->zc_objset_stats.dds_inconsistent && |
2026 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2027 | error = zvol_get_stats(os, nv); | |
2028 | if (error == EIO) | |
2029 | return (error); | |
c99c9001 | 2030 | VERIFY0(error); |
34dc7c2f | 2031 | } |
8a8f5c6b BB |
2032 | if (error == 0) |
2033 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2034 | nvlist_free(nv); |
2035 | } | |
2036 | ||
572e2857 BB |
2037 | return (error); |
2038 | } | |
2039 | ||
2040 | /* | |
2041 | * inputs: | |
2042 | * zc_name name of filesystem | |
2043 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2044 | * | |
2045 | * outputs: | |
2046 | * zc_objset_stats stats | |
2047 | * zc_nvlist_dst property nvlist | |
2048 | * zc_nvlist_dst_size size of property nvlist | |
2049 | */ | |
2050 | static int | |
2051 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2052 | { | |
13fe0198 | 2053 | objset_t *os; |
572e2857 BB |
2054 | int error; |
2055 | ||
13fe0198 MA |
2056 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2057 | if (error == 0) { | |
2058 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2059 | dmu_objset_rele(os, FTAG); | |
2060 | } | |
572e2857 | 2061 | |
428870ff BB |
2062 | return (error); |
2063 | } | |
2064 | ||
2065 | /* | |
2066 | * inputs: | |
2067 | * zc_name name of filesystem | |
2068 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2069 | * | |
2070 | * outputs: | |
2071 | * zc_nvlist_dst received property nvlist | |
2072 | * zc_nvlist_dst_size size of received property nvlist | |
2073 | * | |
2074 | * Gets received properties (distinct from local properties on or after | |
2075 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2076 | * local property values. | |
2077 | */ | |
2078 | static int | |
26685276 | 2079 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2080 | { |
13fe0198 | 2081 | int error = 0; |
428870ff BB |
2082 | nvlist_t *nv; |
2083 | ||
428870ff BB |
2084 | /* |
2085 | * Without this check, we would return local property values if the | |
2086 | * caller has not already received properties on or after | |
2087 | * SPA_VERSION_RECVD_PROPS. | |
2088 | */ | |
13fe0198 | 2089 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2090 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2091 | |
2092 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2093 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2094 | error = put_nvlist(zc, nv); |
2095 | nvlist_free(nv); | |
2096 | } | |
2097 | ||
34dc7c2f BB |
2098 | return (error); |
2099 | } | |
2100 | ||
2101 | static int | |
2102 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2103 | { | |
2104 | uint64_t value; | |
2105 | int error; | |
2106 | ||
2107 | /* | |
2108 | * zfs_get_zplprop() will either find a value or give us | |
2109 | * the default value (if there is one). | |
2110 | */ | |
2111 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2112 | return (error); | |
2113 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2114 | return (0); | |
2115 | } | |
2116 | ||
2117 | /* | |
2118 | * inputs: | |
2119 | * zc_name name of filesystem | |
2120 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2121 | * | |
2122 | * outputs: | |
2123 | * zc_nvlist_dst zpl property nvlist | |
2124 | * zc_nvlist_dst_size size of zpl property nvlist | |
2125 | */ | |
2126 | static int | |
2127 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2128 | { | |
2129 | objset_t *os; | |
2130 | int err; | |
2131 | ||
428870ff | 2132 | /* XXX reading without owning */ |
c65aa5b2 | 2133 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2134 | return (err); |
2135 | ||
2136 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2137 | ||
2138 | /* | |
2139 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2140 | * which we aren't supposed to do with a DS_MODE_USER |
2141 | * hold, because it could be inconsistent. | |
34dc7c2f | 2142 | */ |
b8864a23 | 2143 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2144 | !zc->zc_objset_stats.dds_inconsistent && |
2145 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2146 | nvlist_t *nv; | |
2147 | ||
2148 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2149 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2150 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2151 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2152 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2153 | err = put_nvlist(zc, nv); | |
2154 | nvlist_free(nv); | |
2155 | } else { | |
2e528b49 | 2156 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2157 | } |
428870ff | 2158 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2159 | return (err); |
2160 | } | |
2161 | ||
ba6a2402 | 2162 | boolean_t |
9babb374 BB |
2163 | dataset_name_hidden(const char *name) |
2164 | { | |
2165 | /* | |
2166 | * Skip over datasets that are not visible in this zone, | |
2167 | * internal datasets (which have a $ in their name), and | |
2168 | * temporary datasets (which have a % in their name). | |
2169 | */ | |
2170 | if (strchr(name, '$') != NULL) | |
2171 | return (B_TRUE); | |
2172 | if (strchr(name, '%') != NULL) | |
2173 | return (B_TRUE); | |
2174 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2175 | return (B_TRUE); | |
2176 | return (B_FALSE); | |
2177 | } | |
2178 | ||
34dc7c2f BB |
2179 | /* |
2180 | * inputs: | |
2181 | * zc_name name of filesystem | |
2182 | * zc_cookie zap cursor | |
2183 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2184 | * | |
2185 | * outputs: | |
2186 | * zc_name name of next filesystem | |
9babb374 | 2187 | * zc_cookie zap cursor |
34dc7c2f BB |
2188 | * zc_objset_stats stats |
2189 | * zc_nvlist_dst property nvlist | |
2190 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2191 | */ |
2192 | static int | |
2193 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2194 | { | |
2195 | objset_t *os; | |
2196 | int error; | |
2197 | char *p; | |
428870ff | 2198 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2199 | |
428870ff | 2200 | top: |
c65aa5b2 | 2201 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2202 | if (error == ENOENT) |
2e528b49 | 2203 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2204 | return (error); |
2205 | } | |
2206 | ||
2207 | p = strrchr(zc->zc_name, '/'); | |
2208 | if (p == NULL || p[1] != '\0') | |
2209 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2210 | p = zc->zc_name + strlen(zc->zc_name); | |
2211 | ||
2212 | do { | |
2213 | error = dmu_dir_list_next(os, | |
2214 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2215 | NULL, &zc->zc_cookie); | |
2216 | if (error == ENOENT) | |
2e528b49 | 2217 | error = SET_ERROR(ESRCH); |
330d06f9 | 2218 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2219 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2220 | |
428870ff BB |
2221 | /* |
2222 | * If it's an internal dataset (ie. with a '$' in its name), | |
2223 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2224 | */ | |
2225 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2226 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2227 | if (error == ENOENT) { |
2228 | /* We lost a race with destroy, get the next one. */ | |
2229 | zc->zc_name[orig_len] = '\0'; | |
2230 | goto top; | |
2231 | } | |
2232 | } | |
34dc7c2f BB |
2233 | return (error); |
2234 | } | |
2235 | ||
2236 | /* | |
2237 | * inputs: | |
2238 | * zc_name name of filesystem | |
2239 | * zc_cookie zap cursor | |
2240 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2241 | * | |
2242 | * outputs: | |
2243 | * zc_name name of next snapshot | |
2244 | * zc_objset_stats stats | |
2245 | * zc_nvlist_dst property nvlist | |
2246 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2247 | */ |
2248 | static int | |
2249 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2250 | { | |
2251 | objset_t *os; | |
2252 | int error; | |
2253 | ||
428870ff | 2254 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2255 | if (error != 0) { |
b128c09f | 2256 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2257 | } |
34dc7c2f BB |
2258 | |
2259 | /* | |
2260 | * A dataset name of maximum length cannot have any snapshots, | |
2261 | * so exit immediately. | |
2262 | */ | |
eca7b760 IK |
2263 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= |
2264 | ZFS_MAX_DATASET_NAME_LEN) { | |
428870ff | 2265 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2266 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2267 | } |
2268 | ||
2269 | error = dmu_snapshot_list_next(os, | |
2270 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2271 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2272 | NULL); | |
2273 | ||
0cee2406 | 2274 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2275 | dsl_dataset_t *ds; |
2276 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2277 | ||
572e2857 | 2278 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2279 | if (error == 0) { |
572e2857 BB |
2280 | objset_t *ossnap; |
2281 | ||
2282 | error = dmu_objset_from_ds(ds, &ossnap); | |
2283 | if (error == 0) | |
2284 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2285 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2286 | } |
2287 | } else if (error == ENOENT) { | |
2e528b49 | 2288 | error = SET_ERROR(ESRCH); |
428870ff | 2289 | } |
34dc7c2f | 2290 | |
572e2857 | 2291 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2292 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2293 | if (error != 0) |
34dc7c2f | 2294 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2295 | return (error); |
2296 | } | |
2297 | ||
428870ff BB |
2298 | static int |
2299 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2300 | { |
428870ff BB |
2301 | const char *propname = nvpair_name(pair); |
2302 | uint64_t *valary; | |
2303 | unsigned int vallen; | |
2304 | const char *domain; | |
2305 | char *dash; | |
2306 | zfs_userquota_prop_t type; | |
2307 | uint64_t rid; | |
2308 | uint64_t quota; | |
3558fd73 | 2309 | zfs_sb_t *zsb; |
428870ff BB |
2310 | int err; |
2311 | ||
2312 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2313 | nvlist_t *attrs; | |
2314 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2315 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2316 | &pair) != 0) | |
2e528b49 | 2317 | return (SET_ERROR(EINVAL)); |
428870ff | 2318 | } |
34dc7c2f BB |
2319 | |
2320 | /* | |
428870ff BB |
2321 | * A correctly constructed propname is encoded as |
2322 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2323 | */ |
428870ff BB |
2324 | if ((dash = strchr(propname, '-')) == NULL || |
2325 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2326 | vallen != 3) | |
2e528b49 | 2327 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2328 | |
428870ff BB |
2329 | domain = dash + 1; |
2330 | type = valary[0]; | |
2331 | rid = valary[1]; | |
2332 | quota = valary[2]; | |
34dc7c2f | 2333 | |
3558fd73 | 2334 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2335 | if (err == 0) { |
3558fd73 BB |
2336 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2337 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2338 | } |
9babb374 | 2339 | |
428870ff BB |
2340 | return (err); |
2341 | } | |
34dc7c2f | 2342 | |
428870ff BB |
2343 | /* |
2344 | * If the named property is one that has a special function to set its value, | |
2345 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2346 | * not one of the special properties handled by this function, return -1. | |
2347 | * | |
2348 | * XXX: It would be better for callers of the property interface if we handled | |
2349 | * these special cases in dsl_prop.c (in the dsl layer). | |
2350 | */ | |
2351 | static int | |
2352 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2353 | nvpair_t *pair) | |
2354 | { | |
2355 | const char *propname = nvpair_name(pair); | |
2356 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2357 | uint64_t intval; | |
f1512ee6 | 2358 | int err = -1; |
9babb374 | 2359 | |
428870ff BB |
2360 | if (prop == ZPROP_INVAL) { |
2361 | if (zfs_prop_userquota(propname)) | |
2362 | return (zfs_prop_set_userquota(dsname, pair)); | |
2363 | return (-1); | |
2364 | } | |
34dc7c2f | 2365 | |
428870ff BB |
2366 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2367 | nvlist_t *attrs; | |
2368 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2369 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2370 | &pair) == 0); | |
2371 | } | |
b128c09f | 2372 | |
428870ff BB |
2373 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2374 | return (-1); | |
34dc7c2f | 2375 | |
428870ff | 2376 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2377 | |
428870ff BB |
2378 | switch (prop) { |
2379 | case ZFS_PROP_QUOTA: | |
2380 | err = dsl_dir_set_quota(dsname, source, intval); | |
2381 | break; | |
2382 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2383 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff | 2384 | break; |
788eb90c JJ |
2385 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2386 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2387 | if (intval == UINT64_MAX) { | |
2388 | /* clearing the limit, just do it */ | |
2389 | err = 0; | |
2390 | } else { | |
2391 | err = dsl_dir_activate_fs_ss_limit(dsname); | |
2392 | } | |
2393 | /* | |
2394 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2395 | * default path to set the value in the nvlist. | |
2396 | */ | |
2397 | if (err == 0) | |
2398 | err = -1; | |
2399 | break; | |
428870ff BB |
2400 | case ZFS_PROP_RESERVATION: |
2401 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2402 | break; | |
2403 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2404 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2405 | break; |
2406 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2407 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2408 | break; |
0b4d1b58 | 2409 | case ZFS_PROP_SNAPDEV: |
a0bd735a | 2410 | err = zvol_set_snapdev(dsname, source, intval); |
0b4d1b58 | 2411 | break; |
428870ff BB |
2412 | case ZFS_PROP_VERSION: |
2413 | { | |
3558fd73 | 2414 | zfs_sb_t *zsb; |
428870ff | 2415 | |
3558fd73 | 2416 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2417 | break; |
b128c09f | 2418 | |
3558fd73 BB |
2419 | err = zfs_set_version(zsb, intval); |
2420 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2421 | |
428870ff BB |
2422 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2423 | zfs_cmd_t *zc; | |
34dc7c2f | 2424 | |
efcd79a8 | 2425 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
428870ff BB |
2426 | (void) strcpy(zc->zc_name, dsname); |
2427 | (void) zfs_ioc_userspace_upgrade(zc); | |
2428 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2429 | } |
428870ff BB |
2430 | break; |
2431 | } | |
428870ff BB |
2432 | default: |
2433 | err = -1; | |
2434 | } | |
34dc7c2f | 2435 | |
428870ff BB |
2436 | return (err); |
2437 | } | |
34dc7c2f | 2438 | |
428870ff BB |
2439 | /* |
2440 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2441 | * it continues to set as many as it can and returns the last error |
2442 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2443 | * with the list of names of all the properties that failed along with the | |
2444 | * corresponding error numbers. | |
428870ff | 2445 | * |
6f1ffb06 MA |
2446 | * If every property is set successfully, zero is returned and errlist is not |
2447 | * modified. | |
428870ff BB |
2448 | */ |
2449 | int | |
2450 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2451 | nvlist_t *errlist) |
428870ff BB |
2452 | { |
2453 | nvpair_t *pair; | |
2454 | nvpair_t *propval; | |
2455 | int rv = 0; | |
2456 | uint64_t intval; | |
2457 | char *strval; | |
34dc7c2f | 2458 | |
6f1ffb06 MA |
2459 | nvlist_t *genericnvl = fnvlist_alloc(); |
2460 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2461 | retry: |
2462 | pair = NULL; | |
2463 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2464 | const char *propname = nvpair_name(pair); | |
2465 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2466 | int err = 0; | |
2467 | ||
2468 | /* decode the property value */ | |
2469 | propval = pair; | |
2470 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2471 | nvlist_t *attrs; | |
6f1ffb06 | 2472 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2473 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2474 | &propval) != 0) | |
2e528b49 | 2475 | err = SET_ERROR(EINVAL); |
9babb374 | 2476 | } |
34dc7c2f | 2477 | |
428870ff BB |
2478 | /* Validate value type */ |
2479 | if (err == 0 && prop == ZPROP_INVAL) { | |
2480 | if (zfs_prop_user(propname)) { | |
2481 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2482 | err = SET_ERROR(EINVAL); |
428870ff BB |
2483 | } else if (zfs_prop_userquota(propname)) { |
2484 | if (nvpair_type(propval) != | |
2485 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2486 | err = SET_ERROR(EINVAL); |
330d06f9 | 2487 | } else { |
2e528b49 | 2488 | err = SET_ERROR(EINVAL); |
428870ff BB |
2489 | } |
2490 | } else if (err == 0) { | |
2491 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2492 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2493 | err = SET_ERROR(EINVAL); |
428870ff | 2494 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2495 | const char *unused; |
2496 | ||
6f1ffb06 | 2497 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2498 | |
2499 | switch (zfs_prop_get_type(prop)) { | |
2500 | case PROP_TYPE_NUMBER: | |
2501 | break; | |
2502 | case PROP_TYPE_STRING: | |
2e528b49 | 2503 | err = SET_ERROR(EINVAL); |
428870ff | 2504 | break; |
34dc7c2f BB |
2505 | case PROP_TYPE_INDEX: |
2506 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2507 | intval, &unused) != 0) |
2e528b49 | 2508 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2509 | break; |
2510 | default: | |
2511 | cmn_err(CE_PANIC, | |
2512 | "unknown property type"); | |
34dc7c2f | 2513 | } |
34dc7c2f | 2514 | } else { |
2e528b49 | 2515 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2516 | } |
34dc7c2f | 2517 | } |
428870ff BB |
2518 | |
2519 | /* Validate permissions */ | |
2520 | if (err == 0) | |
2521 | err = zfs_check_settable(dsname, pair, CRED()); | |
2522 | ||
2523 | if (err == 0) { | |
2524 | err = zfs_prop_set_special(dsname, source, pair); | |
2525 | if (err == -1) { | |
2526 | /* | |
2527 | * For better performance we build up a list of | |
2528 | * properties to set in a single transaction. | |
2529 | */ | |
2530 | err = nvlist_add_nvpair(genericnvl, pair); | |
2531 | } else if (err != 0 && nvl != retrynvl) { | |
2532 | /* | |
2533 | * This may be a spurious error caused by | |
2534 | * receiving quota and reservation out of order. | |
2535 | * Try again in a second pass. | |
2536 | */ | |
2537 | err = nvlist_add_nvpair(retrynvl, pair); | |
2538 | } | |
2539 | } | |
2540 | ||
6f1ffb06 MA |
2541 | if (err != 0) { |
2542 | if (errlist != NULL) | |
2543 | fnvlist_add_int32(errlist, propname, err); | |
2544 | rv = err; | |
2545 | } | |
34dc7c2f BB |
2546 | } |
2547 | ||
428870ff BB |
2548 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2549 | nvl = retrynvl; | |
2550 | goto retry; | |
2551 | } | |
2552 | ||
2553 | if (!nvlist_empty(genericnvl) && | |
2554 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2555 | /* | |
2556 | * If this fails, we still want to set as many properties as we | |
2557 | * can, so try setting them individually. | |
2558 | */ | |
2559 | pair = NULL; | |
2560 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2561 | const char *propname = nvpair_name(pair); | |
2562 | int err = 0; | |
2563 | ||
2564 | propval = pair; | |
2565 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2566 | nvlist_t *attrs; | |
6f1ffb06 MA |
2567 | attrs = fnvpair_value_nvlist(pair); |
2568 | propval = fnvlist_lookup_nvpair(attrs, | |
2569 | ZPROP_VALUE); | |
428870ff BB |
2570 | } |
2571 | ||
2572 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2573 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2574 | err = dsl_prop_set_string(dsname, propname, |
2575 | source, strval); | |
428870ff | 2576 | } else { |
6f1ffb06 | 2577 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2578 | err = dsl_prop_set_int(dsname, propname, source, |
2579 | intval); | |
428870ff BB |
2580 | } |
2581 | ||
2582 | if (err != 0) { | |
6f1ffb06 MA |
2583 | if (errlist != NULL) { |
2584 | fnvlist_add_int32(errlist, propname, | |
2585 | err); | |
2586 | } | |
2587 | rv = err; | |
428870ff BB |
2588 | } |
2589 | } | |
9babb374 | 2590 | } |
9babb374 | 2591 | nvlist_free(genericnvl); |
428870ff BB |
2592 | nvlist_free(retrynvl); |
2593 | ||
428870ff | 2594 | return (rv); |
9babb374 BB |
2595 | } |
2596 | ||
2597 | /* | |
2598 | * Check that all the properties are valid user properties. | |
2599 | */ | |
2600 | static int | |
6f1ffb06 | 2601 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2602 | { |
428870ff | 2603 | nvpair_t *pair = NULL; |
9babb374 BB |
2604 | int error = 0; |
2605 | ||
428870ff BB |
2606 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2607 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2608 | |
2609 | if (!zfs_prop_user(propname) || | |
428870ff | 2610 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2611 | return (SET_ERROR(EINVAL)); |
9babb374 | 2612 | |
c65aa5b2 BB |
2613 | if ((error = zfs_secpolicy_write_perms(fsname, |
2614 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2615 | return (error); |
2616 | ||
2617 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2618 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2619 | |
da536844 | 2620 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2621 | return (SET_ERROR(E2BIG)); |
9babb374 | 2622 | } |
34dc7c2f BB |
2623 | return (0); |
2624 | } | |
2625 | ||
428870ff BB |
2626 | static void |
2627 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2628 | { | |
2629 | nvpair_t *pair; | |
2630 | ||
2631 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2632 | ||
2633 | pair = NULL; | |
2634 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2635 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2636 | continue; | |
2637 | ||
2638 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2639 | } | |
2640 | } | |
2641 | ||
2642 | static int | |
13fe0198 | 2643 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2644 | nvlist_t *skipped) |
2645 | { | |
2646 | int err = 0; | |
2647 | nvlist_t *cleared_props = NULL; | |
2648 | props_skip(props, skipped, &cleared_props); | |
2649 | if (!nvlist_empty(cleared_props)) { | |
2650 | /* | |
2651 | * Acts on local properties until the dataset has received | |
2652 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2653 | */ | |
2654 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2655 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2656 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2657 | } |
2658 | nvlist_free(cleared_props); | |
2659 | return (err); | |
2660 | } | |
2661 | ||
34dc7c2f BB |
2662 | /* |
2663 | * inputs: | |
2664 | * zc_name name of filesystem | |
9babb374 | 2665 | * zc_value name of property to set |
34dc7c2f | 2666 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2667 | * zc_cookie received properties flag |
34dc7c2f | 2668 | * |
428870ff BB |
2669 | * outputs: |
2670 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2671 | */ |
2672 | static int | |
2673 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2674 | { | |
2675 | nvlist_t *nvl; | |
428870ff BB |
2676 | boolean_t received = zc->zc_cookie; |
2677 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2678 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2679 | nvlist_t *errors; |
34dc7c2f BB |
2680 | int error; |
2681 | ||
2682 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2683 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2684 | return (error); |
2685 | ||
428870ff | 2686 | if (received) { |
b128c09f | 2687 | nvlist_t *origprops; |
b128c09f | 2688 | |
13fe0198 MA |
2689 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2690 | (void) clear_received_props(zc->zc_name, | |
2691 | origprops, nvl); | |
2692 | nvlist_free(origprops); | |
428870ff | 2693 | } |
13fe0198 MA |
2694 | |
2695 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2696 | } |
2697 | ||
6f1ffb06 | 2698 | errors = fnvlist_alloc(); |
13fe0198 MA |
2699 | if (error == 0) |
2700 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2701 | |
b8864a23 | 2702 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2703 | (void) put_nvlist(zc, errors); |
2704 | } | |
2705 | ||
2706 | nvlist_free(errors); | |
34dc7c2f BB |
2707 | nvlist_free(nvl); |
2708 | return (error); | |
2709 | } | |
2710 | ||
2711 | /* | |
2712 | * inputs: | |
2713 | * zc_name name of filesystem | |
2714 | * zc_value name of property to inherit | |
428870ff | 2715 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2716 | * |
2717 | * outputs: none | |
2718 | */ | |
2719 | static int | |
2720 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2721 | { | |
428870ff BB |
2722 | const char *propname = zc->zc_value; |
2723 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2724 | boolean_t received = zc->zc_cookie; | |
2725 | zprop_source_t source = (received | |
2726 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2727 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2728 | ||
2729 | if (received) { | |
2730 | nvlist_t *dummy; | |
2731 | nvpair_t *pair; | |
2732 | zprop_type_t type; | |
2733 | int err; | |
2734 | ||
2735 | /* | |
2736 | * zfs_prop_set_special() expects properties in the form of an | |
2737 | * nvpair with type info. | |
2738 | */ | |
2739 | if (prop == ZPROP_INVAL) { | |
2740 | if (!zfs_prop_user(propname)) | |
2e528b49 | 2741 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2742 | |
2743 | type = PROP_TYPE_STRING; | |
2744 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2745 | prop == ZFS_PROP_VERSION) { | |
2e528b49 | 2746 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2747 | } else { |
2748 | type = zfs_prop_get_type(prop); | |
2749 | } | |
2750 | ||
2751 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2752 | ||
2753 | switch (type) { | |
2754 | case PROP_TYPE_STRING: | |
2755 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2756 | break; | |
2757 | case PROP_TYPE_NUMBER: | |
2758 | case PROP_TYPE_INDEX: | |
2759 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2760 | break; | |
2761 | default: | |
2762 | nvlist_free(dummy); | |
2e528b49 | 2763 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2764 | } |
2765 | ||
2766 | pair = nvlist_next_nvpair(dummy, NULL); | |
2767 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2768 | nvlist_free(dummy); | |
2769 | if (err != -1) | |
2770 | return (err); /* special property already handled */ | |
2771 | } else { | |
2772 | /* | |
2773 | * Only check this in the non-received case. We want to allow | |
2774 | * 'inherit -S' to revert non-inheritable properties like quota | |
2775 | * and reservation to the received or default values even though | |
2776 | * they are not considered inheritable. | |
2777 | */ | |
2778 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2e528b49 | 2779 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2780 | } |
2781 | ||
6f1ffb06 | 2782 | /* property name has been validated by zfs_secpolicy_inherit_prop() */ |
13fe0198 | 2783 | return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); |
34dc7c2f BB |
2784 | } |
2785 | ||
2786 | static int | |
2787 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2788 | { | |
2789 | nvlist_t *props; | |
2790 | spa_t *spa; | |
2791 | int error; | |
428870ff | 2792 | nvpair_t *pair; |
34dc7c2f | 2793 | |
c65aa5b2 BB |
2794 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2795 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2796 | return (error); |
2797 | ||
d164b209 BB |
2798 | /* |
2799 | * If the only property is the configfile, then just do a spa_lookup() | |
2800 | * to handle the faulted case. | |
2801 | */ | |
428870ff BB |
2802 | pair = nvlist_next_nvpair(props, NULL); |
2803 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2804 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2805 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2806 | mutex_enter(&spa_namespace_lock); |
2807 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2808 | spa_configfile_set(spa, props, B_FALSE); | |
2809 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2810 | } | |
2811 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2812 | if (spa != NULL) { |
2813 | nvlist_free(props); | |
d164b209 | 2814 | return (0); |
428870ff | 2815 | } |
d164b209 BB |
2816 | } |
2817 | ||
34dc7c2f BB |
2818 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2819 | nvlist_free(props); | |
2820 | return (error); | |
2821 | } | |
2822 | ||
2823 | error = spa_prop_set(spa, props); | |
2824 | ||
2825 | nvlist_free(props); | |
2826 | spa_close(spa, FTAG); | |
2827 | ||
2828 | return (error); | |
2829 | } | |
2830 | ||
2831 | static int | |
2832 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2833 | { | |
2834 | spa_t *spa; | |
2835 | int error; | |
2836 | nvlist_t *nvp = NULL; | |
2837 | ||
d164b209 BB |
2838 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2839 | /* | |
2840 | * If the pool is faulted, there may be properties we can still | |
2841 | * get (such as altroot and cachefile), so attempt to get them | |
2842 | * anyway. | |
2843 | */ | |
2844 | mutex_enter(&spa_namespace_lock); | |
2845 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2846 | error = spa_prop_get(spa, &nvp); | |
2847 | mutex_exit(&spa_namespace_lock); | |
2848 | } else { | |
2849 | error = spa_prop_get(spa, &nvp); | |
2850 | spa_close(spa, FTAG); | |
2851 | } | |
34dc7c2f | 2852 | |
b8864a23 | 2853 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2854 | error = put_nvlist(zc, nvp); |
2855 | else | |
2e528b49 | 2856 | error = SET_ERROR(EFAULT); |
34dc7c2f | 2857 | |
d164b209 | 2858 | nvlist_free(nvp); |
34dc7c2f BB |
2859 | return (error); |
2860 | } | |
2861 | ||
34dc7c2f BB |
2862 | /* |
2863 | * inputs: | |
2864 | * zc_name name of filesystem | |
2865 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2866 | * zc_perm_action allow/unallow flag | |
2867 | * | |
2868 | * outputs: none | |
2869 | */ | |
2870 | static int | |
2871 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2872 | { | |
2873 | int error; | |
2874 | nvlist_t *fsaclnv = NULL; | |
2875 | ||
2876 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2877 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2878 | return (error); |
2879 | ||
2880 | /* | |
2881 | * Verify nvlist is constructed correctly | |
2882 | */ | |
2883 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2884 | nvlist_free(fsaclnv); | |
2e528b49 | 2885 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
2886 | } |
2887 | ||
2888 | /* | |
2889 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2890 | * that user is allowed to hand out each permission in | |
2891 | * the nvlist(s) | |
2892 | */ | |
2893 | ||
2894 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 2895 | if (error != 0) { |
34dc7c2f BB |
2896 | if (zc->zc_perm_action == B_FALSE) { |
2897 | error = dsl_deleg_can_allow(zc->zc_name, | |
2898 | fsaclnv, CRED()); | |
2899 | } else { | |
2900 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2901 | fsaclnv, CRED()); | |
2902 | } | |
2903 | } | |
2904 | ||
2905 | if (error == 0) | |
2906 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2907 | ||
2908 | nvlist_free(fsaclnv); | |
2909 | return (error); | |
2910 | } | |
2911 | ||
2912 | /* | |
2913 | * inputs: | |
2914 | * zc_name name of filesystem | |
2915 | * | |
2916 | * outputs: | |
2917 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2918 | */ | |
2919 | static int | |
2920 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2921 | { | |
2922 | nvlist_t *nvp; | |
2923 | int error; | |
2924 | ||
2925 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2926 | error = put_nvlist(zc, nvp); | |
2927 | nvlist_free(nvp); | |
2928 | } | |
2929 | ||
2930 | return (error); | |
2931 | } | |
2932 | ||
34dc7c2f BB |
2933 | /* ARGSUSED */ |
2934 | static void | |
2935 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2936 | { | |
2937 | zfs_creat_t *zct = arg; | |
2938 | ||
2939 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2940 | } | |
2941 | ||
2942 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2943 | ||
2944 | /* | |
2945 | * inputs: | |
b128c09f | 2946 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
2947 | * fuids_ok fuids allowed in this version of the spa? |
2948 | * sa_ok SAs allowed in this version of the spa? | |
2949 | * createprops list of properties requested by creator | |
34dc7c2f BB |
2950 | * |
2951 | * outputs: | |
2952 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2953 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2954 | * |
2955 | * Determine the settings for utf8only, normalization and | |
2956 | * casesensitivity. Specific values may have been requested by the | |
2957 | * creator and/or we can inherit values from the parent dataset. If | |
2958 | * the file system is of too early a vintage, a creator can not | |
2959 | * request settings for these properties, even if the requested | |
2960 | * setting is the default value. We don't actually want to create dsl | |
2961 | * properties for these, so remove them from the source nvlist after | |
2962 | * processing. | |
2963 | */ | |
2964 | static int | |
9babb374 | 2965 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2966 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2967 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2968 | { |
34dc7c2f BB |
2969 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2970 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2971 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2972 | int error; |
34dc7c2f BB |
2973 | |
2974 | ASSERT(zplprops != NULL); | |
2975 | ||
34dc7c2f BB |
2976 | /* |
2977 | * Pull out creator prop choices, if any. | |
2978 | */ | |
2979 | if (createprops) { | |
b128c09f BB |
2980 | (void) nvlist_lookup_uint64(createprops, |
2981 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2982 | (void) nvlist_lookup_uint64(createprops, |
2983 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2984 | (void) nvlist_remove_all(createprops, | |
2985 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2986 | (void) nvlist_lookup_uint64(createprops, | |
2987 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2988 | (void) nvlist_remove_all(createprops, | |
2989 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2990 | (void) nvlist_lookup_uint64(createprops, | |
2991 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2992 | (void) nvlist_remove_all(createprops, | |
2993 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2994 | } | |
2995 | ||
2996 | /* | |
b128c09f BB |
2997 | * If the zpl version requested is whacky or the file system |
2998 | * or pool is version is too "young" to support normalization | |
2999 | * and the creator tried to set a value for one of the props, | |
3000 | * error out. | |
34dc7c2f | 3001 | */ |
b128c09f BB |
3002 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3003 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3004 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3005 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3006 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3007 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 3008 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
3009 | |
3010 | /* | |
3011 | * Put the version in the zplprops | |
3012 | */ | |
3013 | VERIFY(nvlist_add_uint64(zplprops, | |
3014 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3015 | ||
b129c659 MM |
3016 | if (norm == ZFS_PROP_UNDEFINED && |
3017 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3018 | return (error); | |
34dc7c2f BB |
3019 | VERIFY(nvlist_add_uint64(zplprops, |
3020 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3021 | ||
3022 | /* | |
3023 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3024 | */ | |
3025 | if (norm) | |
3026 | u8 = 1; | |
b129c659 MM |
3027 | if (u8 == ZFS_PROP_UNDEFINED && |
3028 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3029 | return (error); | |
34dc7c2f BB |
3030 | VERIFY(nvlist_add_uint64(zplprops, |
3031 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3032 | ||
b129c659 MM |
3033 | if (sense == ZFS_PROP_UNDEFINED && |
3034 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3035 | return (error); | |
34dc7c2f BB |
3036 | VERIFY(nvlist_add_uint64(zplprops, |
3037 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3038 | ||
3039 | if (is_ci) | |
3040 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3041 | ||
34dc7c2f BB |
3042 | return (0); |
3043 | } | |
3044 | ||
b128c09f BB |
3045 | static int |
3046 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3047 | nvlist_t *zplprops, boolean_t *is_ci) | |
3048 | { | |
428870ff | 3049 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3050 | uint64_t zplver = ZPL_VERSION; |
3051 | objset_t *os = NULL; | |
eca7b760 | 3052 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
b128c09f | 3053 | char *cp; |
428870ff BB |
3054 | spa_t *spa; |
3055 | uint64_t spa_vers; | |
b128c09f BB |
3056 | int error; |
3057 | ||
3058 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3059 | cp = strrchr(parentname, '/'); | |
3060 | ASSERT(cp != NULL); | |
3061 | cp[0] = '\0'; | |
3062 | ||
428870ff BB |
3063 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3064 | return (error); | |
3065 | ||
3066 | spa_vers = spa_version(spa); | |
3067 | spa_close(spa, FTAG); | |
3068 | ||
3069 | zplver = zfs_zpl_version_map(spa_vers); | |
3070 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3071 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3072 | |
3073 | /* | |
3074 | * Open parent object set so we can inherit zplprop values. | |
3075 | */ | |
428870ff | 3076 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3077 | return (error); |
3078 | ||
428870ff | 3079 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3080 | zplprops, is_ci); |
428870ff | 3081 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3082 | return (error); |
3083 | } | |
3084 | ||
3085 | static int | |
3086 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3087 | nvlist_t *zplprops, boolean_t *is_ci) | |
3088 | { | |
428870ff BB |
3089 | boolean_t fuids_ok; |
3090 | boolean_t sa_ok; | |
b128c09f BB |
3091 | uint64_t zplver = ZPL_VERSION; |
3092 | int error; | |
3093 | ||
428870ff BB |
3094 | zplver = zfs_zpl_version_map(spa_vers); |
3095 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3096 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3097 | |
428870ff BB |
3098 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3099 | createprops, zplprops, is_ci); | |
b128c09f BB |
3100 | return (error); |
3101 | } | |
3102 | ||
34dc7c2f | 3103 | /* |
6f1ffb06 MA |
3104 | * innvl: { |
3105 | * "type" -> dmu_objset_type_t (int32) | |
3106 | * (optional) "props" -> { prop -> value } | |
3107 | * } | |
34dc7c2f | 3108 | * |
6f1ffb06 | 3109 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3110 | */ |
3111 | static int | |
6f1ffb06 | 3112 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3113 | { |
34dc7c2f | 3114 | int error = 0; |
6f1ffb06 | 3115 | zfs_creat_t zct = { 0 }; |
34dc7c2f BB |
3116 | nvlist_t *nvprops = NULL; |
3117 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
6f1ffb06 MA |
3118 | int32_t type32; |
3119 | dmu_objset_type_t type; | |
3120 | boolean_t is_insensitive = B_FALSE; | |
34dc7c2f | 3121 | |
6f1ffb06 | 3122 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
2e528b49 | 3123 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3124 | type = type32; |
3125 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
34dc7c2f | 3126 | |
6f1ffb06 | 3127 | switch (type) { |
34dc7c2f BB |
3128 | case DMU_OST_ZFS: |
3129 | cbfunc = zfs_create_cb; | |
3130 | break; | |
3131 | ||
3132 | case DMU_OST_ZVOL: | |
3133 | cbfunc = zvol_create_cb; | |
3134 | break; | |
3135 | ||
3136 | default: | |
3137 | cbfunc = NULL; | |
3138 | break; | |
3139 | } | |
6f1ffb06 MA |
3140 | if (strchr(fsname, '@') || |
3141 | strchr(fsname, '%')) | |
2e528b49 | 3142 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3143 | |
34dc7c2f BB |
3144 | zct.zct_props = nvprops; |
3145 | ||
6f1ffb06 | 3146 | if (cbfunc == NULL) |
2e528b49 | 3147 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3148 | |
6f1ffb06 MA |
3149 | if (type == DMU_OST_ZVOL) { |
3150 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3151 | |
6f1ffb06 | 3152 | if (nvprops == NULL) |
2e528b49 | 3153 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3154 | if (nvlist_lookup_uint64(nvprops, |
3155 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3156 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3157 | |
6f1ffb06 MA |
3158 | if ((error = nvlist_lookup_uint64(nvprops, |
3159 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3160 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3161 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3162 | |
6f1ffb06 MA |
3163 | if (error != 0) |
3164 | volblocksize = zfs_prop_default_numeric( | |
3165 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3166 | |
4cb7b9c5 | 3167 | if ((error = zvol_check_volblocksize(fsname, |
6f1ffb06 MA |
3168 | volblocksize)) != 0 || |
3169 | (error = zvol_check_volsize(volsize, | |
3170 | volblocksize)) != 0) | |
3171 | return (error); | |
3172 | } else if (type == DMU_OST_ZFS) { | |
3173 | int error; | |
34dc7c2f | 3174 | |
6f1ffb06 MA |
3175 | /* |
3176 | * We have to have normalization and | |
3177 | * case-folding flags correct when we do the | |
3178 | * file system creation, so go figure them out | |
3179 | * now. | |
3180 | */ | |
3181 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3182 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3183 | error = zfs_fill_zplprops(fsname, nvprops, | |
3184 | zct.zct_zplprops, &is_insensitive); | |
3185 | if (error != 0) { | |
3186 | nvlist_free(zct.zct_zplprops); | |
3187 | return (error); | |
34dc7c2f | 3188 | } |
34dc7c2f BB |
3189 | } |
3190 | ||
6f1ffb06 MA |
3191 | error = dmu_objset_create(fsname, type, |
3192 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); | |
3193 | nvlist_free(zct.zct_zplprops); | |
3194 | ||
34dc7c2f BB |
3195 | /* |
3196 | * It would be nice to do this atomically. | |
3197 | */ | |
3198 | if (error == 0) { | |
6f1ffb06 MA |
3199 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3200 | nvprops, outnvl); | |
f74b821a BB |
3201 | if (error != 0) { |
3202 | spa_t *spa; | |
3203 | int error2; | |
3204 | ||
3205 | /* | |
3206 | * Volumes will return EBUSY and cannot be destroyed | |
3207 | * until all asynchronous minor handling has completed. | |
3208 | * Wait for the spa_zvol_taskq to drain then retry. | |
3209 | */ | |
3210 | error2 = dsl_destroy_head(fsname); | |
3211 | while ((error2 == EBUSY) && (type == DMU_OST_ZVOL)) { | |
3212 | error2 = spa_open(fsname, &spa, FTAG); | |
3213 | if (error2 == 0) { | |
3214 | taskq_wait(spa->spa_zvol_taskq); | |
3215 | spa_close(spa, FTAG); | |
3216 | } | |
3217 | error2 = dsl_destroy_head(fsname); | |
3218 | } | |
3219 | } | |
34dc7c2f | 3220 | } |
34dc7c2f BB |
3221 | return (error); |
3222 | } | |
3223 | ||
3224 | /* | |
6f1ffb06 MA |
3225 | * innvl: { |
3226 | * "origin" -> name of origin snapshot | |
3227 | * (optional) "props" -> { prop -> value } | |
3228 | * } | |
34dc7c2f | 3229 | * |
428870ff | 3230 | * outputs: |
6f1ffb06 | 3231 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3232 | */ |
3233 | static int | |
6f1ffb06 | 3234 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3235 | { |
6f1ffb06 | 3236 | int error = 0; |
b128c09f | 3237 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3238 | char *origin_name; |
b128c09f | 3239 | |
6f1ffb06 | 3240 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
2e528b49 | 3241 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3242 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3243 | |
6f1ffb06 MA |
3244 | if (strchr(fsname, '@') || |
3245 | strchr(fsname, '%')) | |
2e528b49 | 3246 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3247 | |
3248 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3249 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
3250 | error = dmu_objset_clone(fsname, origin_name); |
3251 | if (error != 0) | |
6f1ffb06 | 3252 | return (error); |
b128c09f | 3253 | |
6f1ffb06 MA |
3254 | /* |
3255 | * It would be nice to do this atomically. | |
3256 | */ | |
3257 | if (error == 0) { | |
3258 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3259 | nvprops, outnvl); | |
3260 | if (error != 0) | |
13fe0198 | 3261 | (void) dsl_destroy_head(fsname); |
b128c09f | 3262 | } |
6f1ffb06 MA |
3263 | return (error); |
3264 | } | |
9babb374 | 3265 | |
6f1ffb06 MA |
3266 | /* |
3267 | * innvl: { | |
3268 | * "snaps" -> { snapshot1, snapshot2 } | |
3269 | * (optional) "props" -> { prop -> value (string) } | |
3270 | * } | |
3271 | * | |
3272 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3273 | */ |
3274 | static int | |
3275 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3276 | { | |
3277 | nvlist_t *snaps; | |
3278 | nvlist_t *props = NULL; | |
3279 | int error, poollen; | |
3280 | nvpair_t *pair, *pair2; | |
9babb374 | 3281 | |
6f1ffb06 MA |
3282 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3283 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3284 | return (error); | |
3285 | ||
3286 | if (!nvlist_empty(props) && | |
3287 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3288 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3289 | |
3290 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 3291 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3292 | poollen = strlen(poolname); |
3293 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3294 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3295 | const char *name = nvpair_name(pair); | |
3296 | const char *cp = strchr(name, '@'); | |
3297 | ||
3298 | /* | |
3299 | * The snap name must contain an @, and the part after it must | |
3300 | * contain only valid characters. | |
3301 | */ | |
da536844 MA |
3302 | if (cp == NULL || |
3303 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3304 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3305 | |
3306 | /* | |
3307 | * The snap must be in the specified pool. | |
3308 | */ | |
3309 | if (strncmp(name, poolname, poollen) != 0 || | |
3310 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3311 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3312 | |
3313 | /* This must be the only snap of this fs. */ | |
3314 | for (pair2 = nvlist_next_nvpair(snaps, pair); | |
3315 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { | |
3316 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3317 | == 0) { | |
2e528b49 | 3318 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3319 | } |
3320 | } | |
3321 | } | |
3322 | ||
13fe0198 | 3323 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 | 3324 | |
6f1ffb06 MA |
3325 | return (error); |
3326 | } | |
3327 | ||
3328 | /* | |
3329 | * innvl: "message" -> string | |
3330 | */ | |
3331 | /* ARGSUSED */ | |
3332 | static int | |
3333 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3334 | { | |
3335 | char *message; | |
3336 | spa_t *spa; | |
3337 | int error; | |
3338 | char *poolname; | |
3339 | ||
3340 | /* | |
3341 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3342 | * which was set at the end of the last successful ioctl that allows | |
3343 | * logging. The secpolicy func already checked that it is set. | |
3344 | * Only one log ioctl is allowed after each successful ioctl, so | |
3345 | * we clear the TSD here. | |
3346 | */ | |
3347 | poolname = tsd_get(zfs_allow_log_key); | |
9f3d1407 | 3348 | if (poolname == NULL) |
3349 | return (SET_ERROR(EINVAL)); | |
6f1ffb06 MA |
3350 | (void) tsd_set(zfs_allow_log_key, NULL); |
3351 | error = spa_open(poolname, &spa, FTAG); | |
3352 | strfree(poolname); | |
3353 | if (error != 0) | |
3354 | return (error); | |
3355 | ||
3356 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3357 | spa_close(spa, FTAG); | |
2e528b49 | 3358 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3359 | } |
3360 | ||
3361 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3362 | spa_close(spa, FTAG); | |
2e528b49 | 3363 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3364 | } |
3365 | ||
3366 | error = spa_history_log(spa, message); | |
3367 | spa_close(spa, FTAG); | |
b128c09f | 3368 | return (error); |
34dc7c2f BB |
3369 | } |
3370 | ||
ebe7e575 | 3371 | /* |
13fe0198 MA |
3372 | * The dp_config_rwlock must not be held when calling this, because the |
3373 | * unmount may need to write out data. | |
3374 | * | |
3375 | * This function is best-effort. Callers must deal gracefully if it | |
3376 | * remains mounted (or is remounted after this call). | |
d09f25dc | 3377 | * |
278bee93 BB |
3378 | * Returns 0 if the argument is not a snapshot, or it is not currently a |
3379 | * filesystem, or we were able to unmount it. Returns error code otherwise. | |
ebe7e575 | 3380 | */ |
d09f25dc | 3381 | int |
13fe0198 | 3382 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3383 | { |
278bee93 | 3384 | int err; |
34dc7c2f | 3385 | |
278bee93 | 3386 | if (strchr(snapname, '@') == NULL) |
d09f25dc | 3387 | return (0); |
34dc7c2f | 3388 | |
278bee93 BB |
3389 | err = zfsctl_snapshot_unmount((char *)snapname, MNT_FORCE); |
3390 | if (err != 0 && err != ENOENT) | |
3391 | return (SET_ERROR(err)); | |
ebe7e575 | 3392 | |
d09f25dc | 3393 | return (0); |
13fe0198 MA |
3394 | } |
3395 | ||
3396 | /* ARGSUSED */ | |
3397 | static int | |
3398 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3399 | { | |
d09f25dc | 3400 | return (zfs_unmount_snap(snapname)); |
13fe0198 MA |
3401 | } |
3402 | ||
3403 | /* | |
3404 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3405 | * in which case it must be unmounted. This routine will do that unmount | |
3406 | * if necessary. | |
3407 | */ | |
3408 | void | |
3409 | zfs_destroy_unmount_origin(const char *fsname) | |
3410 | { | |
3411 | int error; | |
3412 | objset_t *os; | |
3413 | dsl_dataset_t *ds; | |
3414 | ||
3415 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3416 | if (error != 0) | |
3417 | return; | |
3418 | ds = dmu_objset_ds(os); | |
3419 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
eca7b760 | 3420 | char originname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
3421 | dsl_dataset_name(ds->ds_prev, originname); |
3422 | dmu_objset_rele(os, FTAG); | |
d09f25dc | 3423 | (void) zfs_unmount_snap(originname); |
13fe0198 MA |
3424 | } else { |
3425 | dmu_objset_rele(os, FTAG); | |
3426 | } | |
34dc7c2f BB |
3427 | } |
3428 | ||
3429 | /* | |
6f1ffb06 MA |
3430 | * innvl: { |
3431 | * "snaps" -> { snapshot1, snapshot2 } | |
3432 | * (optional boolean) "defer" | |
3433 | * } | |
34dc7c2f | 3434 | * |
6f1ffb06 | 3435 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3436 | */ |
da536844 | 3437 | /* ARGSUSED */ |
34dc7c2f | 3438 | static int |
6f1ffb06 | 3439 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3440 | { |
6f1ffb06 | 3441 | nvlist_t *snaps; |
330d06f9 | 3442 | nvpair_t *pair; |
6f1ffb06 | 3443 | boolean_t defer; |
34dc7c2f | 3444 | |
6f1ffb06 | 3445 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 3446 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3447 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3448 | |
6f1ffb06 MA |
3449 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3450 | pair = nvlist_next_nvpair(snaps, pair)) { | |
da536844 | 3451 | (void) zfs_unmount_snap(nvpair_name(pair)); |
da536844 MA |
3452 | } |
3453 | ||
3454 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3455 | } | |
3456 | ||
3457 | /* | |
3458 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3459 | * All bookmarks must be in the same pool. | |
3460 | * | |
3461 | * innvl: { | |
3462 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3463 | * } | |
3464 | * | |
3465 | * outnvl: bookmark -> error code (int32) | |
3466 | * | |
3467 | */ | |
3468 | /* ARGSUSED */ | |
3469 | static int | |
3470 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3471 | { | |
3472 | nvpair_t *pair, *pair2; | |
3473 | ||
3474 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3475 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
3476 | char *snap_name; | |
3477 | ||
3478 | /* | |
3479 | * Verify the snapshot argument. | |
3480 | */ | |
3481 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3482 | return (SET_ERROR(EINVAL)); | |
3483 | ||
3484 | ||
3485 | /* Verify that the keys (bookmarks) are unique */ | |
3486 | for (pair2 = nvlist_next_nvpair(innvl, pair); | |
3487 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { | |
3488 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3489 | return (SET_ERROR(EINVAL)); | |
3490 | } | |
3491 | } | |
3492 | ||
3493 | return (dsl_bookmark_create(innvl, outnvl)); | |
3494 | } | |
3495 | ||
3496 | /* | |
3497 | * innvl: { | |
3498 | * property 1, property 2, ... | |
3499 | * } | |
3500 | * | |
3501 | * outnvl: { | |
3502 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3503 | * bookmark name 2 -> { property 1, property 2, ... } | |
3504 | * } | |
3505 | * | |
3506 | */ | |
3507 | static int | |
3508 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3509 | { | |
3510 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3511 | } | |
3512 | ||
3513 | /* | |
3514 | * innvl: { | |
3515 | * bookmark name 1, bookmark name 2 | |
3516 | * } | |
3517 | * | |
3518 | * outnvl: bookmark -> error code (int32) | |
3519 | * | |
3520 | */ | |
3521 | static int | |
3522 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3523 | nvlist_t *outnvl) | |
3524 | { | |
3525 | int error, poollen; | |
3526 | nvpair_t *pair; | |
3527 | ||
3528 | poollen = strlen(poolname); | |
3529 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3530 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
330d06f9 | 3531 | const char *name = nvpair_name(pair); |
da536844 | 3532 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3533 | |
330d06f9 | 3534 | /* |
da536844 MA |
3535 | * The bookmark name must contain an #, and the part after it |
3536 | * must contain only valid characters. | |
3537 | */ | |
3538 | if (cp == NULL || | |
3539 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3540 | return (SET_ERROR(EINVAL)); | |
3541 | ||
3542 | /* | |
3543 | * The bookmark must be in the specified pool. | |
330d06f9 | 3544 | */ |
6f1ffb06 | 3545 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3546 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3547 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3548 | } |
3549 | ||
da536844 MA |
3550 | error = dsl_bookmark_destroy(innvl, outnvl); |
3551 | return (error); | |
34dc7c2f BB |
3552 | } |
3553 | ||
3554 | /* | |
3555 | * inputs: | |
3556 | * zc_name name of dataset to destroy | |
3557 | * zc_objset_type type of objset | |
45d1cae3 | 3558 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3559 | * |
3560 | * outputs: none | |
3561 | */ | |
3562 | static int | |
3563 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3564 | { | |
428870ff | 3565 | int err; |
d09f25dc WA |
3566 | |
3567 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
3568 | err = zfs_unmount_snap(zc->zc_name); | |
3569 | if (err != 0) | |
3570 | return (err); | |
3571 | } | |
34dc7c2f | 3572 | |
1b87e0f5 | 3573 | if (strchr(zc->zc_name, '@')) { |
13fe0198 | 3574 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); |
1b87e0f5 | 3575 | } else { |
13fe0198 | 3576 | err = dsl_destroy_head(zc->zc_name); |
1b87e0f5 RS |
3577 | if (err == EEXIST) { |
3578 | /* | |
3579 | * It is possible that the given DS may have | |
3580 | * hidden child (%recv) datasets - "leftovers" | |
3581 | * resulting from the previously interrupted | |
3582 | * 'zfs receive'. | |
3583 | * | |
3584 | * 6 extra bytes for /%recv | |
3585 | */ | |
3586 | char namebuf[ZFS_MAX_DATASET_NAME_LEN + 6]; | |
3587 | ||
3588 | (void) snprintf(namebuf, sizeof (namebuf), | |
3589 | "%s/%s", zc->zc_name, recv_clone_name); | |
3590 | ||
3591 | /* | |
3592 | * Try to remove the hidden child (%recv) and after | |
3593 | * that try to remove the target dataset. | |
3594 | * If the hidden child (%recv) does not exist | |
3595 | * the original error (EEXIST) will be returned | |
3596 | */ | |
3597 | err = dsl_destroy_head(namebuf); | |
3598 | if (err == 0) | |
3599 | err = dsl_destroy_head(zc->zc_name); | |
3600 | else if (err == ENOENT) | |
3601 | err = EEXIST; | |
3602 | } | |
3603 | } | |
a0bd735a | 3604 | |
428870ff | 3605 | return (err); |
34dc7c2f BB |
3606 | } |
3607 | ||
3608 | /* | |
46ba1e59 | 3609 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3610 | * |
46ba1e59 MA |
3611 | * innvl is not used. |
3612 | * | |
3613 | * outnvl: "target" -> name of most recent snapshot | |
3614 | * } | |
34dc7c2f | 3615 | */ |
46ba1e59 | 3616 | /* ARGSUSED */ |
34dc7c2f | 3617 | static int |
46ba1e59 | 3618 | zfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) |
34dc7c2f | 3619 | { |
3558fd73 | 3620 | zfs_sb_t *zsb; |
13fe0198 | 3621 | int error; |
34dc7c2f | 3622 | |
46ba1e59 | 3623 | if (get_zfs_sb(fsname, &zsb) == 0) { |
3558fd73 | 3624 | error = zfs_suspend_fs(zsb); |
34dc7c2f BB |
3625 | if (error == 0) { |
3626 | int resume_err; | |
3627 | ||
46ba1e59 MA |
3628 | error = dsl_dataset_rollback(fsname, zsb, outnvl); |
3629 | resume_err = zfs_resume_fs(zsb, fsname); | |
34dc7c2f | 3630 | error = error ? error : resume_err; |
34dc7c2f | 3631 | } |
2cf7f52b | 3632 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3633 | } else { |
46ba1e59 | 3634 | error = dsl_dataset_rollback(fsname, NULL, outnvl); |
34dc7c2f | 3635 | } |
13fe0198 MA |
3636 | return (error); |
3637 | } | |
34dc7c2f | 3638 | |
13fe0198 MA |
3639 | static int |
3640 | recursive_unmount(const char *fsname, void *arg) | |
3641 | { | |
3642 | const char *snapname = arg; | |
3643 | char *fullname; | |
00fcdee1 | 3644 | int error; |
428870ff | 3645 | |
13fe0198 | 3646 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
00fcdee1 | 3647 | error = zfs_unmount_snap(fullname); |
13fe0198 | 3648 | strfree(fullname); |
00fcdee1 AV |
3649 | |
3650 | return (error); | |
34dc7c2f BB |
3651 | } |
3652 | ||
3653 | /* | |
3654 | * inputs: | |
3655 | * zc_name old name of dataset | |
3656 | * zc_value new name of dataset | |
3657 | * zc_cookie recursive flag (only valid for snapshots) | |
3658 | * | |
3659 | * outputs: none | |
3660 | */ | |
3661 | static int | |
3662 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3663 | { | |
3664 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3665 | char *at; |
34dc7c2f BB |
3666 | |
3667 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3668 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3669 | strchr(zc->zc_value, '%')) | |
2e528b49 | 3670 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3671 | |
13fe0198 MA |
3672 | at = strchr(zc->zc_name, '@'); |
3673 | if (at != NULL) { | |
3674 | /* snaps must be in same fs */ | |
9554185d SH |
3675 | int error; |
3676 | ||
13fe0198 | 3677 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3678 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3679 | *at = '\0'; |
3680 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3681 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3682 | recursive_unmount, at + 1, |
3683 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3684 | if (error != 0) { |
3685 | *at = '@'; | |
13fe0198 | 3686 | return (error); |
9554185d | 3687 | } |
13fe0198 | 3688 | } |
9554185d SH |
3689 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3690 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3691 | *at = '@'; | |
3692 | ||
3693 | return (error); | |
13fe0198 | 3694 | } else { |
ba6a2402 | 3695 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 3696 | } |
34dc7c2f BB |
3697 | } |
3698 | ||
428870ff BB |
3699 | static int |
3700 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3701 | { | |
3702 | const char *propname = nvpair_name(pair); | |
3703 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3704 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3705 | uint64_t intval; | |
3706 | int err; | |
3707 | ||
3708 | if (prop == ZPROP_INVAL) { | |
3709 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3710 | if ((err = zfs_secpolicy_write_perms(dsname, |
3711 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3712 | return (err); |
3713 | return (0); | |
3714 | } | |
3715 | ||
3716 | if (!issnap && zfs_prop_userquota(propname)) { | |
3717 | const char *perm = NULL; | |
3718 | const char *uq_prefix = | |
3719 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3720 | const char *gq_prefix = | |
3721 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3722 | ||
3723 | if (strncmp(propname, uq_prefix, | |
3724 | strlen(uq_prefix)) == 0) { | |
3725 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3726 | } else if (strncmp(propname, gq_prefix, | |
3727 | strlen(gq_prefix)) == 0) { | |
3728 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3729 | } else { | |
3730 | /* USERUSED and GROUPUSED are read-only */ | |
2e528b49 | 3731 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3732 | } |
3733 | ||
c65aa5b2 | 3734 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3735 | return (err); |
3736 | return (0); | |
3737 | } | |
3738 | ||
2e528b49 | 3739 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3740 | } |
3741 | ||
3742 | if (issnap) | |
2e528b49 | 3743 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3744 | |
3745 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3746 | /* | |
3747 | * dsl_prop_get_all_impl() returns properties in this | |
3748 | * format. | |
3749 | */ | |
3750 | nvlist_t *attrs; | |
3751 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3752 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3753 | &pair) == 0); | |
3754 | } | |
3755 | ||
3756 | /* | |
3757 | * Check that this value is valid for this pool version | |
3758 | */ | |
3759 | switch (prop) { | |
3760 | case ZFS_PROP_COMPRESSION: | |
3761 | /* | |
3762 | * If the user specified gzip compression, make sure | |
3763 | * the SPA supports it. We ignore any errors here since | |
3764 | * we'll catch them later. | |
3765 | */ | |
f1512ee6 | 3766 | if (nvpair_value_uint64(pair, &intval) == 0) { |
428870ff BB |
3767 | if (intval >= ZIO_COMPRESS_GZIP_1 && |
3768 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3769 | zfs_earlier_version(dsname, | |
3770 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 3771 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3772 | } |
3773 | ||
3774 | if (intval == ZIO_COMPRESS_ZLE && | |
3775 | zfs_earlier_version(dsname, | |
3776 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 3777 | return (SET_ERROR(ENOTSUP)); |
428870ff | 3778 | |
9759c60f | 3779 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
3780 | spa_t *spa; |
3781 | ||
3782 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3783 | return (err); | |
3784 | ||
fa86b5db MA |
3785 | if (!spa_feature_is_enabled(spa, |
3786 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 3787 | spa_close(spa, FTAG); |
2e528b49 | 3788 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
3789 | } |
3790 | spa_close(spa, FTAG); | |
3791 | } | |
3792 | ||
428870ff BB |
3793 | /* |
3794 | * If this is a bootable dataset then | |
3795 | * verify that the compression algorithm | |
3796 | * is supported for booting. We must return | |
3797 | * something other than ENOTSUP since it | |
3798 | * implies a downrev pool version. | |
3799 | */ | |
3800 | if (zfs_is_bootfs(dsname) && | |
3801 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 3802 | return (SET_ERROR(ERANGE)); |
428870ff BB |
3803 | } |
3804 | } | |
3805 | break; | |
3806 | ||
3807 | case ZFS_PROP_COPIES: | |
3808 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 3809 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3810 | break; |
3811 | ||
3812 | case ZFS_PROP_DEDUP: | |
3813 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
2e528b49 | 3814 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3815 | break; |
3816 | ||
4cb7b9c5 | 3817 | case ZFS_PROP_VOLBLOCKSIZE: |
f1512ee6 MA |
3818 | case ZFS_PROP_RECORDSIZE: |
3819 | /* Record sizes above 128k need the feature to be enabled */ | |
3820 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
3821 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
3822 | spa_t *spa; | |
3823 | ||
3824 | /* | |
3825 | * If this is a bootable dataset then | |
50c957f7 | 3826 | * we don't allow large (>128K) blocks, |
f1512ee6 MA |
3827 | * because GRUB doesn't support them. |
3828 | */ | |
3829 | if (zfs_is_bootfs(dsname) && | |
3830 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
4b2a3e0c | 3831 | return (SET_ERROR(ERANGE)); |
f1512ee6 MA |
3832 | } |
3833 | ||
3834 | /* | |
3835 | * We don't allow setting the property above 1MB, | |
3836 | * unless the tunable has been changed. | |
3837 | */ | |
3838 | if (intval > zfs_max_recordsize || | |
3839 | intval > SPA_MAXBLOCKSIZE) | |
4b2a3e0c | 3840 | return (SET_ERROR(ERANGE)); |
f1512ee6 MA |
3841 | |
3842 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3843 | return (err); | |
3844 | ||
3845 | if (!spa_feature_is_enabled(spa, | |
3846 | SPA_FEATURE_LARGE_BLOCKS)) { | |
3847 | spa_close(spa, FTAG); | |
3848 | return (SET_ERROR(ENOTSUP)); | |
3849 | } | |
3850 | spa_close(spa, FTAG); | |
3851 | } | |
3852 | break; | |
3853 | ||
50c957f7 NB |
3854 | case ZFS_PROP_DNODESIZE: |
3855 | /* Dnode sizes above 512 need the feature to be enabled */ | |
3856 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
3857 | intval != ZFS_DNSIZE_LEGACY) { | |
3858 | spa_t *spa; | |
3859 | ||
3860 | /* | |
3861 | * If this is a bootable dataset then | |
3862 | * we don't allow large (>512B) dnodes, | |
3863 | * because GRUB doesn't support them. | |
3864 | */ | |
3865 | if (zfs_is_bootfs(dsname) && | |
3866 | intval != ZFS_DNSIZE_LEGACY) { | |
3867 | return (SET_ERROR(EDOM)); | |
3868 | } | |
3869 | ||
3870 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3871 | return (err); | |
3872 | ||
3873 | if (!spa_feature_is_enabled(spa, | |
3874 | SPA_FEATURE_LARGE_DNODE)) { | |
3875 | spa_close(spa, FTAG); | |
3876 | return (SET_ERROR(ENOTSUP)); | |
3877 | } | |
3878 | spa_close(spa, FTAG); | |
3879 | } | |
3880 | break; | |
3881 | ||
428870ff BB |
3882 | case ZFS_PROP_SHARESMB: |
3883 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 3884 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3885 | break; |
3886 | ||
3887 | case ZFS_PROP_ACLINHERIT: | |
3888 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3889 | nvpair_value_uint64(pair, &intval) == 0) { | |
3890 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3891 | zfs_earlier_version(dsname, | |
3892 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 3893 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3894 | } |
3895 | break; | |
e75c13c3 BB |
3896 | default: |
3897 | break; | |
428870ff BB |
3898 | } |
3899 | ||
3900 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3901 | } | |
3902 | ||
3903 | /* | |
3904 | * Removes properties from the given props list that fail permission checks | |
3905 | * needed to clear them and to restore them in case of a receive error. For each | |
3906 | * property, make sure we have both set and inherit permissions. | |
3907 | * | |
3908 | * Returns the first error encountered if any permission checks fail. If the | |
3909 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3910 | * of all the properties that failed a permission check along with the | |
3911 | * corresponding error numbers. The caller is responsible for freeing the | |
3912 | * returned errlist. | |
3913 | * | |
3914 | * If every property checks out successfully, zero is returned and the list | |
3915 | * pointed at by errlist is NULL. | |
3916 | */ | |
3917 | static int | |
3918 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3919 | { |
3920 | zfs_cmd_t *zc; | |
428870ff BB |
3921 | nvpair_t *pair, *next_pair; |
3922 | nvlist_t *errors; | |
3923 | int err, rv = 0; | |
b128c09f BB |
3924 | |
3925 | if (props == NULL) | |
428870ff BB |
3926 | return (0); |
3927 | ||
3928 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3929 | ||
efcd79a8 | 3930 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
b128c09f | 3931 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3932 | pair = nvlist_next_nvpair(props, NULL); |
3933 | while (pair != NULL) { | |
3934 | next_pair = nvlist_next_nvpair(props, pair); | |
3935 | ||
3936 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3937 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
6f1ffb06 | 3938 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
3939 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
3940 | VERIFY(nvlist_add_int32(errors, | |
3941 | zc->zc_value, err) == 0); | |
3942 | } | |
3943 | pair = next_pair; | |
b128c09f BB |
3944 | } |
3945 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3946 | |
3947 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3948 | nvlist_free(errors); | |
3949 | errors = NULL; | |
3950 | } else { | |
3951 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3952 | } | |
3953 | ||
3954 | if (errlist == NULL) | |
3955 | nvlist_free(errors); | |
3956 | else | |
3957 | *errlist = errors; | |
3958 | ||
3959 | return (rv); | |
3960 | } | |
3961 | ||
3962 | static boolean_t | |
3963 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3964 | { | |
3965 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3966 | /* dsl_prop_get_all_impl() format */ | |
3967 | nvlist_t *attrs; | |
3968 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3969 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3970 | &p1) == 0); | |
3971 | } | |
3972 | ||
3973 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3974 | nvlist_t *attrs; | |
3975 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3976 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3977 | &p2) == 0); | |
3978 | } | |
3979 | ||
3980 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3981 | return (B_FALSE); | |
3982 | ||
3983 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3984 | char *valstr1, *valstr2; | |
3985 | ||
3986 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3987 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3988 | return (strcmp(valstr1, valstr2) == 0); | |
3989 | } else { | |
3990 | uint64_t intval1, intval2; | |
3991 | ||
3992 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3993 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3994 | return (intval1 == intval2); | |
3995 | } | |
b128c09f BB |
3996 | } |
3997 | ||
428870ff BB |
3998 | /* |
3999 | * Remove properties from props if they are not going to change (as determined | |
4000 | * by comparison with origprops). Remove them from origprops as well, since we | |
4001 | * do not need to clear or restore properties that won't change. | |
4002 | */ | |
4003 | static void | |
4004 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
4005 | { | |
4006 | nvpair_t *pair, *next_pair; | |
4007 | ||
4008 | if (origprops == NULL) | |
4009 | return; /* all props need to be received */ | |
4010 | ||
4011 | pair = nvlist_next_nvpair(props, NULL); | |
4012 | while (pair != NULL) { | |
4013 | const char *propname = nvpair_name(pair); | |
4014 | nvpair_t *match; | |
4015 | ||
4016 | next_pair = nvlist_next_nvpair(props, pair); | |
4017 | ||
4018 | if ((nvlist_lookup_nvpair(origprops, propname, | |
4019 | &match) != 0) || !propval_equals(pair, match)) | |
4020 | goto next; /* need to set received value */ | |
4021 | ||
4022 | /* don't clear the existing received value */ | |
4023 | (void) nvlist_remove_nvpair(origprops, match); | |
4024 | /* don't bother receiving the property */ | |
4025 | (void) nvlist_remove_nvpair(props, pair); | |
4026 | next: | |
4027 | pair = next_pair; | |
4028 | } | |
4029 | } | |
4030 | ||
671c9354 DM |
4031 | /* |
4032 | * Extract properties that cannot be set PRIOR to the receipt of a dataset. | |
4033 | * For example, refquota cannot be set until after the receipt of a dataset, | |
4034 | * because in replication streams, an older/earlier snapshot may exceed the | |
4035 | * refquota. We want to receive the older/earlier snapshot, but setting | |
4036 | * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent | |
4037 | * the older/earlier snapshot from being received (with EDQUOT). | |
4038 | * | |
4039 | * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario. | |
4040 | * | |
4041 | * libzfs will need to be judicious handling errors encountered by props | |
4042 | * extracted by this function. | |
4043 | */ | |
4044 | static nvlist_t * | |
4045 | extract_delay_props(nvlist_t *props) | |
4046 | { | |
4047 | nvlist_t *delayprops; | |
4048 | nvpair_t *nvp, *tmp; | |
4049 | static const zfs_prop_t delayable[] = { ZFS_PROP_REFQUOTA, 0 }; | |
4050 | int i; | |
4051 | ||
4052 | VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
4053 | ||
4054 | for (nvp = nvlist_next_nvpair(props, NULL); nvp != NULL; | |
4055 | nvp = nvlist_next_nvpair(props, nvp)) { | |
4056 | /* | |
4057 | * strcmp() is safe because zfs_prop_to_name() always returns | |
4058 | * a bounded string. | |
4059 | */ | |
4060 | for (i = 0; delayable[i] != 0; i++) { | |
4061 | if (strcmp(zfs_prop_to_name(delayable[i]), | |
4062 | nvpair_name(nvp)) == 0) { | |
4063 | break; | |
4064 | } | |
4065 | } | |
4066 | if (delayable[i] != 0) { | |
4067 | tmp = nvlist_prev_nvpair(props, nvp); | |
4068 | VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0); | |
4069 | VERIFY(nvlist_remove_nvpair(props, nvp) == 0); | |
4070 | nvp = tmp; | |
4071 | } | |
4072 | } | |
4073 | ||
4074 | if (nvlist_empty(delayprops)) { | |
4075 | nvlist_free(delayprops); | |
4076 | delayprops = NULL; | |
4077 | } | |
4078 | return (delayprops); | |
4079 | } | |
4080 | ||
428870ff BB |
4081 | #ifdef DEBUG |
4082 | static boolean_t zfs_ioc_recv_inject_err; | |
4083 | #endif | |
4084 | ||
34dc7c2f | 4085 | /* |
1bf3bf0e GN |
4086 | * nvlist 'errors' is always allocated. It will contain descriptions of |
4087 | * encountered errors, if any. It's the callers responsibility to free. | |
34dc7c2f BB |
4088 | */ |
4089 | static int | |
43e52edd BB |
4090 | zfs_ioc_recv_impl(char *tofs, char *tosnap, char *origin, |
4091 | nvlist_t *props, boolean_t force, boolean_t resumable, int input_fd, | |
4092 | dmu_replay_record_t *begin_record, int cleanup_fd, uint64_t *read_bytes, | |
4093 | uint64_t *errflags, uint64_t *action_handle, nvlist_t **errors) | |
34dc7c2f | 4094 | { |
34dc7c2f | 4095 | dmu_recv_cookie_t drc; |
428870ff BB |
4096 | int error = 0; |
4097 | int props_error = 0; | |
34dc7c2f | 4098 | offset_t off; |
671c9354 | 4099 | nvlist_t *delayprops = NULL; /* sent properties applied post-receive */ |
43e52edd | 4100 | nvlist_t *origprops = NULL; /* existing properties */ |
428870ff | 4101 | boolean_t first_recvd_props = B_FALSE; |
43e52edd | 4102 | file_t *input_fp; |
34dc7c2f | 4103 | |
1bf3bf0e GN |
4104 | *read_bytes = 0; |
4105 | *errflags = 0; | |
4106 | *errors = fnvlist_alloc(); | |
4107 | ||
43e52edd BB |
4108 | input_fp = getf(input_fd); |
4109 | if (input_fp == NULL) | |
2e528b49 | 4110 | return (SET_ERROR(EBADF)); |
13fe0198 MA |
4111 | |
4112 | error = dmu_recv_begin(tofs, tosnap, | |
43e52edd | 4113 | begin_record, force, resumable, origin, &drc); |
13fe0198 MA |
4114 | if (error != 0) |
4115 | goto out; | |
4116 | ||
4117 | /* | |
4118 | * Set properties before we receive the stream so that they are applied | |
4119 | * to the new data. Note that we must call dmu_recv_stream() if | |
4120 | * dmu_recv_begin() succeeds. | |
4121 | */ | |
4122 | if (props != NULL && !drc.drc_newfs) { | |
4123 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= | |
4124 | SPA_VERSION_RECVD_PROPS && | |
4125 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4126 | first_recvd_props = B_TRUE; |
428870ff | 4127 | |
b128c09f | 4128 | /* |
428870ff BB |
4129 | * If new received properties are supplied, they are to |
4130 | * completely replace the existing received properties, so stash | |
4131 | * away the existing ones. | |
b128c09f | 4132 | */ |
13fe0198 | 4133 | if (dsl_prop_get_received(tofs, &origprops) == 0) { |
428870ff BB |
4134 | nvlist_t *errlist = NULL; |
4135 | /* | |
4136 | * Don't bother writing a property if its value won't | |
4137 | * change (and avoid the unnecessary security checks). | |
4138 | * | |
4139 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4140 | * special case where we blow away all local properties | |
4141 | * regardless. | |
4142 | */ | |
4143 | if (!first_recvd_props) | |
4144 | props_reduce(props, origprops); | |
13fe0198 | 4145 | if (zfs_check_clearable(tofs, origprops, &errlist) != 0) |
43e52edd | 4146 | (void) nvlist_merge(*errors, errlist, 0); |
428870ff | 4147 | nvlist_free(errlist); |
b128c09f | 4148 | |
13fe0198 MA |
4149 | if (clear_received_props(tofs, origprops, |
4150 | first_recvd_props ? NULL : props) != 0) | |
43e52edd | 4151 | *errflags |= ZPROP_ERR_NOCLEAR; |
13fe0198 | 4152 | } else { |
43e52edd | 4153 | *errflags |= ZPROP_ERR_NOCLEAR; |
428870ff | 4154 | } |
13fe0198 MA |
4155 | } |
4156 | ||
4157 | if (props != NULL) { | |
4158 | props_error = dsl_prop_set_hasrecvd(tofs); | |
428870ff | 4159 | |
13fe0198 | 4160 | if (props_error == 0) { |
671c9354 | 4161 | delayprops = extract_delay_props(props); |
13fe0198 | 4162 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, |
43e52edd | 4163 | props, *errors); |
13fe0198 | 4164 | } |
428870ff BB |
4165 | } |
4166 | ||
43e52edd BB |
4167 | off = input_fp->f_offset; |
4168 | error = dmu_recv_stream(&drc, input_fp->f_vnode, &off, cleanup_fd, | |
4169 | action_handle); | |
34dc7c2f | 4170 | |
45d1cae3 | 4171 | if (error == 0) { |
3558fd73 | 4172 | zfs_sb_t *zsb = NULL; |
b128c09f | 4173 | |
3558fd73 | 4174 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
4175 | /* online recv */ |
4176 | int end_err; | |
b128c09f | 4177 | |
3558fd73 | 4178 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
4179 | /* |
4180 | * If the suspend fails, then the recv_end will | |
4181 | * likely also fail, and clean up after itself. | |
4182 | */ | |
831baf06 | 4183 | end_err = dmu_recv_end(&drc, zsb); |
428870ff | 4184 | if (error == 0) |
3558fd73 | 4185 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 4186 | error = error ? error : end_err; |
2cf7f52b | 4187 | deactivate_super(zsb->z_sb); |
b128c09f | 4188 | } else { |
831baf06 | 4189 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4190 | } |
671c9354 DM |
4191 | |
4192 | /* Set delayed properties now, after we're done receiving. */ | |
4193 | if (delayprops != NULL && error == 0) { | |
4194 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
43e52edd | 4195 | delayprops, *errors); |
671c9354 DM |
4196 | } |
4197 | } | |
4198 | ||
4199 | if (delayprops != NULL) { | |
4200 | /* | |
4201 | * Merge delayed props back in with initial props, in case | |
4202 | * we're DEBUG and zfs_ioc_recv_inject_err is set (which means | |
4203 | * we have to make sure clear_received_props() includes | |
4204 | * the delayed properties). | |
4205 | * | |
4206 | * Since zfs_ioc_recv_inject_err is only in DEBUG kernels, | |
4207 | * using ASSERT() will be just like a VERIFY. | |
4208 | */ | |
4209 | ASSERT(nvlist_merge(props, delayprops, 0) == 0); | |
4210 | nvlist_free(delayprops); | |
4211 | } | |
4212 | ||
34dc7c2f | 4213 | |
43e52edd BB |
4214 | *read_bytes = off - input_fp->f_offset; |
4215 | if (VOP_SEEK(input_fp->f_vnode, input_fp->f_offset, &off, NULL) == 0) | |
4216 | input_fp->f_offset = off; | |
34dc7c2f | 4217 | |
428870ff BB |
4218 | #ifdef DEBUG |
4219 | if (zfs_ioc_recv_inject_err) { | |
4220 | zfs_ioc_recv_inject_err = B_FALSE; | |
4221 | error = 1; | |
4222 | } | |
4223 | #endif | |
ba6a2402 | 4224 | |
b128c09f BB |
4225 | /* |
4226 | * On error, restore the original props. | |
4227 | */ | |
13fe0198 MA |
4228 | if (error != 0 && props != NULL && !drc.drc_newfs) { |
4229 | if (clear_received_props(tofs, props, NULL) != 0) { | |
4230 | /* | |
4231 | * We failed to clear the received properties. | |
4232 | * Since we may have left a $recvd value on the | |
4233 | * system, we can't clear the $hasrecvd flag. | |
4234 | */ | |
43e52edd | 4235 | *errflags |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4236 | } else if (first_recvd_props) { |
4237 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4238 | } |
4239 | ||
4240 | if (origprops == NULL && !drc.drc_newfs) { | |
4241 | /* We failed to stash the original properties. */ | |
43e52edd | 4242 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff BB |
4243 | } |
4244 | ||
4245 | /* | |
4246 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4247 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4248 | * explictly if we're restoring local properties cleared in the | |
4249 | * first new-style receive. | |
4250 | */ | |
4251 | if (origprops != NULL && | |
4252 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
4253 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
4254 | origprops, NULL) != 0) { | |
4255 | /* | |
4256 | * We stashed the original properties but failed to | |
4257 | * restore them. | |
4258 | */ | |
43e52edd | 4259 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff | 4260 | } |
b128c09f BB |
4261 | } |
4262 | out: | |
43e52edd | 4263 | releasef(input_fd); |
b128c09f | 4264 | nvlist_free(origprops); |
428870ff BB |
4265 | |
4266 | if (error == 0) | |
4267 | error = props_error; | |
4268 | ||
34dc7c2f BB |
4269 | return (error); |
4270 | } | |
4271 | ||
43e52edd BB |
4272 | /* |
4273 | * inputs: | |
4274 | * zc_name name of containing filesystem (unused) | |
4275 | * zc_nvlist_src{_size} nvlist of properties to apply | |
4276 | * zc_value name of snapshot to create | |
4277 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
4278 | * zc_cookie file descriptor to recv from | |
4279 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
4280 | * zc_guid force flag | |
4281 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4282 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
4283 | * | |
4284 | * outputs: | |
4285 | * zc_cookie number of bytes read | |
4286 | * zc_obj zprop_errflags_t | |
4287 | * zc_action_handle handle for this guid/ds mapping | |
4288 | * zc_nvlist_dst{_size} error for each unapplied received property | |
4289 | */ | |
4290 | static int | |
4291 | zfs_ioc_recv(zfs_cmd_t *zc) | |
4292 | { | |
4293 | dmu_replay_record_t begin_record; | |
4294 | nvlist_t *errors = NULL; | |
4295 | nvlist_t *props = NULL; | |
4296 | char *origin = NULL; | |
4297 | char *tosnap; | |
eca7b760 | 4298 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4299 | int error = 0; |
4300 | ||
4301 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
4302 | strchr(zc->zc_value, '@') == NULL || | |
4303 | strchr(zc->zc_value, '%')) | |
4304 | return (SET_ERROR(EINVAL)); | |
4305 | ||
4306 | (void) strcpy(tofs, zc->zc_value); | |
4307 | tosnap = strchr(tofs, '@'); | |
4308 | *tosnap++ = '\0'; | |
4309 | ||
4310 | if (zc->zc_nvlist_src != 0 && | |
4311 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
4312 | zc->zc_iflags, &props)) != 0) | |
4313 | return (error); | |
4314 | ||
4315 | if (zc->zc_string[0]) | |
4316 | origin = zc->zc_string; | |
4317 | ||
4318 | begin_record.drr_type = DRR_BEGIN; | |
4319 | begin_record.drr_payloadlen = 0; | |
4320 | begin_record.drr_u.drr_begin = zc->zc_begin_record; | |
4321 | ||
4322 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, props, zc->zc_guid, | |
4323 | B_FALSE, zc->zc_cookie, &begin_record, zc->zc_cleanup_fd, | |
4324 | &zc->zc_cookie, &zc->zc_obj, &zc->zc_action_handle, &errors); | |
4325 | nvlist_free(props); | |
4326 | ||
4327 | /* | |
4328 | * Now that all props, initial and delayed, are set, report the prop | |
4329 | * errors to the caller. | |
4330 | */ | |
4331 | if (zc->zc_nvlist_dst_size != 0 && errors != NULL && | |
4332 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4333 | put_nvlist(zc, errors) != 0)) { | |
4334 | /* | |
4335 | * Caller made zc->zc_nvlist_dst less than the minimum expected | |
4336 | * size or supplied an invalid address. | |
4337 | */ | |
4338 | error = SET_ERROR(EINVAL); | |
4339 | } | |
4340 | ||
4341 | nvlist_free(errors); | |
4342 | ||
4343 | return (error); | |
4344 | } | |
4345 | ||
4346 | /* | |
4347 | * innvl: { | |
4348 | * "snapname" -> full name of the snapshot to create | |
4349 | * (optional) "props" -> properties to set (nvlist) | |
4350 | * (optional) "origin" -> name of clone origin (DRR_FLAG_CLONE) | |
4351 | * "begin_record" -> non-byteswapped dmu_replay_record_t | |
4352 | * "input_fd" -> file descriptor to read stream from (int32) | |
4353 | * (optional) "force" -> force flag (value ignored) | |
4354 | * (optional) "resumable" -> resumable flag (value ignored) | |
4355 | * (optional) "cleanup_fd" -> cleanup-on-exit file descriptor | |
4356 | * (optional) "action_handle" -> handle for this guid/ds mapping | |
4357 | * } | |
4358 | * | |
4359 | * outnvl: { | |
4360 | * "read_bytes" -> number of bytes read | |
4361 | * "error_flags" -> zprop_errflags_t | |
4362 | * "action_handle" -> handle for this guid/ds mapping | |
4363 | * "errors" -> error for each unapplied received property (nvlist) | |
4364 | * } | |
4365 | */ | |
4366 | static int | |
4367 | zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
4368 | { | |
4369 | dmu_replay_record_t *begin_record; | |
4370 | uint_t begin_record_size; | |
4371 | nvlist_t *errors = NULL; | |
4372 | nvlist_t *props = NULL; | |
4373 | char *snapname = NULL; | |
4374 | char *origin = NULL; | |
4375 | char *tosnap; | |
eca7b760 | 4376 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4377 | boolean_t force; |
4378 | boolean_t resumable; | |
4379 | uint64_t action_handle = 0; | |
4380 | uint64_t read_bytes = 0; | |
4381 | uint64_t errflags = 0; | |
4382 | int input_fd = -1; | |
4383 | int cleanup_fd = -1; | |
4384 | int error; | |
4385 | ||
4386 | error = nvlist_lookup_string(innvl, "snapname", &snapname); | |
4387 | if (error != 0) | |
4388 | return (SET_ERROR(EINVAL)); | |
4389 | ||
4390 | if (dataset_namecheck(snapname, NULL, NULL) != 0 || | |
4391 | strchr(snapname, '@') == NULL || | |
4392 | strchr(snapname, '%')) | |
4393 | return (SET_ERROR(EINVAL)); | |
4394 | ||
4395 | (void) strcpy(tofs, snapname); | |
4396 | tosnap = strchr(tofs, '@'); | |
4397 | *tosnap++ = '\0'; | |
4398 | ||
4399 | error = nvlist_lookup_string(innvl, "origin", &origin); | |
4400 | if (error && error != ENOENT) | |
4401 | return (error); | |
4402 | ||
4403 | error = nvlist_lookup_byte_array(innvl, "begin_record", | |
4404 | (uchar_t **) &begin_record, &begin_record_size); | |
4405 | if (error != 0 || begin_record_size != sizeof (*begin_record)) | |
4406 | return (SET_ERROR(EINVAL)); | |
4407 | ||
4408 | error = nvlist_lookup_int32(innvl, "input_fd", &input_fd); | |
4409 | if (error != 0) | |
4410 | return (SET_ERROR(EINVAL)); | |
4411 | ||
4412 | force = nvlist_exists(innvl, "force"); | |
4413 | resumable = nvlist_exists(innvl, "resumable"); | |
4414 | ||
4415 | error = nvlist_lookup_int32(innvl, "cleanup_fd", &cleanup_fd); | |
4416 | if (error && error != ENOENT) | |
4417 | return (error); | |
4418 | ||
4419 | error = nvlist_lookup_uint64(innvl, "action_handle", &action_handle); | |
4420 | if (error && error != ENOENT) | |
4421 | return (error); | |
4422 | ||
4423 | error = nvlist_lookup_nvlist(innvl, "props", &props); | |
4424 | if (error && error != ENOENT) | |
4425 | return (error); | |
4426 | ||
4427 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, props, force, | |
4428 | resumable, input_fd, begin_record, cleanup_fd, &read_bytes, | |
4429 | &errflags, &action_handle, &errors); | |
4430 | ||
4431 | fnvlist_add_uint64(outnvl, "read_bytes", read_bytes); | |
4432 | fnvlist_add_uint64(outnvl, "error_flags", errflags); | |
4433 | fnvlist_add_uint64(outnvl, "action_handle", action_handle); | |
4434 | fnvlist_add_nvlist(outnvl, "errors", errors); | |
4435 | ||
4436 | nvlist_free(errors); | |
4437 | nvlist_free(props); | |
4438 | ||
4439 | return (error); | |
4440 | } | |
4441 | ||
34dc7c2f BB |
4442 | /* |
4443 | * inputs: | |
4444 | * zc_name name of snapshot to send | |
34dc7c2f | 4445 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4446 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4447 | * zc_sendobj objsetid of snapshot to send | |
4448 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4449 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4450 | * output size in zc_objset_type. | |
f1512ee6 | 4451 | * zc_flags lzc_send_flags |
34dc7c2f | 4452 | * |
da536844 MA |
4453 | * outputs: |
4454 | * zc_objset_type estimated size, if zc_guid is set | |
34dc7c2f BB |
4455 | */ |
4456 | static int | |
4457 | zfs_ioc_send(zfs_cmd_t *zc) | |
4458 | { | |
34dc7c2f BB |
4459 | int error; |
4460 | offset_t off; | |
330d06f9 | 4461 | boolean_t estimate = (zc->zc_guid != 0); |
9b67f605 | 4462 | boolean_t embedok = (zc->zc_flags & 0x1); |
f1512ee6 | 4463 | boolean_t large_block_ok = (zc->zc_flags & 0x2); |
2aa34383 | 4464 | boolean_t compressok = (zc->zc_flags & 0x4); |
34dc7c2f | 4465 | |
13fe0198 MA |
4466 | if (zc->zc_obj != 0) { |
4467 | dsl_pool_t *dp; | |
4468 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4469 | |
13fe0198 MA |
4470 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4471 | if (error != 0) | |
572e2857 | 4472 | return (error); |
13fe0198 MA |
4473 | |
4474 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4475 | if (error != 0) { | |
4476 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4477 | return (error); |
4478 | } | |
13fe0198 MA |
4479 | |
4480 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
d683ddbb JG |
4481 | zc->zc_fromobj = |
4482 | dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj; | |
13fe0198 MA |
4483 | dsl_dataset_rele(tosnap, FTAG); |
4484 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4485 | } |
4486 | ||
13fe0198 MA |
4487 | if (estimate) { |
4488 | dsl_pool_t *dp; | |
4489 | dsl_dataset_t *tosnap; | |
4490 | dsl_dataset_t *fromsnap = NULL; | |
4491 | ||
4492 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4493 | if (error != 0) | |
4494 | return (error); | |
6f1ffb06 | 4495 | |
13fe0198 MA |
4496 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); |
4497 | if (error != 0) { | |
4498 | dsl_pool_rele(dp, FTAG); | |
4499 | return (error); | |
6f1ffb06 MA |
4500 | } |
4501 | ||
13fe0198 MA |
4502 | if (zc->zc_fromobj != 0) { |
4503 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4504 | FTAG, &fromsnap); | |
4505 | if (error != 0) { | |
4506 | dsl_dataset_rele(tosnap, FTAG); | |
4507 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4508 | return (error); |
4509 | } | |
4510 | } | |
34dc7c2f | 4511 | |
2aa34383 | 4512 | error = dmu_send_estimate(tosnap, fromsnap, compressok, |
330d06f9 | 4513 | &zc->zc_objset_type); |
13fe0198 MA |
4514 | |
4515 | if (fromsnap != NULL) | |
4516 | dsl_dataset_rele(fromsnap, FTAG); | |
4517 | dsl_dataset_rele(tosnap, FTAG); | |
4518 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4519 | } else { |
4520 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4521 | if (fp == NULL) |
2e528b49 | 4522 | return (SET_ERROR(EBADF)); |
34dc7c2f | 4523 | |
330d06f9 | 4524 | off = fp->f_offset; |
13fe0198 | 4525 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
2aa34383 | 4526 | zc->zc_fromobj, embedok, large_block_ok, compressok, |
f1512ee6 | 4527 | zc->zc_cookie, fp->f_vnode, &off); |
34dc7c2f | 4528 | |
330d06f9 MA |
4529 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4530 | fp->f_offset = off; | |
4531 | releasef(zc->zc_cookie); | |
4532 | } | |
34dc7c2f BB |
4533 | return (error); |
4534 | } | |
4535 | ||
37abac6d BP |
4536 | /* |
4537 | * inputs: | |
4538 | * zc_name name of snapshot on which to report progress | |
4539 | * zc_cookie file descriptor of send stream | |
4540 | * | |
4541 | * outputs: | |
4542 | * zc_cookie number of bytes written in send stream thus far | |
4543 | */ | |
4544 | static int | |
4545 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4546 | { | |
13fe0198 | 4547 | dsl_pool_t *dp; |
37abac6d BP |
4548 | dsl_dataset_t *ds; |
4549 | dmu_sendarg_t *dsp = NULL; | |
4550 | int error; | |
4551 | ||
13fe0198 MA |
4552 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4553 | if (error != 0) | |
37abac6d BP |
4554 | return (error); |
4555 | ||
13fe0198 MA |
4556 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4557 | if (error != 0) { | |
4558 | dsl_pool_rele(dp, FTAG); | |
4559 | return (error); | |
4560 | } | |
4561 | ||
37abac6d BP |
4562 | mutex_enter(&ds->ds_sendstream_lock); |
4563 | ||
4564 | /* | |
4565 | * Iterate over all the send streams currently active on this dataset. | |
4566 | * If there's one which matches the specified file descriptor _and_ the | |
4567 | * stream was started by the current process, return the progress of | |
4568 | * that stream. | |
4569 | */ | |
4570 | ||
4571 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4572 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4573 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4574 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4575 | break; | |
4576 | } | |
4577 | ||
4578 | if (dsp != NULL) | |
4579 | zc->zc_cookie = *(dsp->dsa_off); | |
4580 | else | |
2e528b49 | 4581 | error = SET_ERROR(ENOENT); |
37abac6d BP |
4582 | |
4583 | mutex_exit(&ds->ds_sendstream_lock); | |
4584 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4585 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4586 | return (error); |
4587 | } | |
4588 | ||
34dc7c2f BB |
4589 | static int |
4590 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4591 | { | |
4592 | int id, error; | |
4593 | ||
4594 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4595 | &zc->zc_inject_record); | |
4596 | ||
4597 | if (error == 0) | |
4598 | zc->zc_guid = (uint64_t)id; | |
4599 | ||
4600 | return (error); | |
4601 | } | |
4602 | ||
4603 | static int | |
4604 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4605 | { | |
4606 | return (zio_clear_fault((int)zc->zc_guid)); | |
4607 | } | |
4608 | ||
4609 | static int | |
4610 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4611 | { | |
4612 | int id = (int)zc->zc_guid; | |
4613 | int error; | |
4614 | ||
4615 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4616 | &zc->zc_inject_record); | |
4617 | ||
4618 | zc->zc_guid = id; | |
4619 | ||
4620 | return (error); | |
4621 | } | |
4622 | ||
4623 | static int | |
4624 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4625 | { | |
4626 | spa_t *spa; | |
4627 | int error; | |
4628 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4629 | ||
4630 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4631 | return (error); | |
4632 | ||
4633 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4634 | &count); | |
4635 | if (error == 0) | |
4636 | zc->zc_nvlist_dst_size = count; | |
4637 | else | |
4638 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4639 | ||
4640 | spa_close(spa, FTAG); | |
4641 | ||
4642 | return (error); | |
4643 | } | |
4644 | ||
4645 | static int | |
4646 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4647 | { | |
4648 | spa_t *spa; | |
4649 | vdev_t *vd; | |
34dc7c2f BB |
4650 | int error; |
4651 | ||
34dc7c2f | 4652 | /* |
b128c09f | 4653 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4654 | */ |
b128c09f BB |
4655 | mutex_enter(&spa_namespace_lock); |
4656 | spa = spa_lookup(zc->zc_name); | |
4657 | if (spa == NULL) { | |
4658 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 4659 | return (SET_ERROR(EIO)); |
b128c09f | 4660 | } |
428870ff | 4661 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4662 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4663 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4664 | } |
428870ff | 4665 | spa->spa_last_open_failed = 0; |
b128c09f | 4666 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4667 | |
428870ff BB |
4668 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4669 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4670 | } else { | |
4671 | nvlist_t *policy; | |
4672 | nvlist_t *config = NULL; | |
4673 | ||
b8864a23 | 4674 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 4675 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4676 | |
4677 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4678 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4679 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4680 | policy, &config); | |
4681 | if (config != NULL) { | |
572e2857 BB |
4682 | int err; |
4683 | ||
4684 | if ((err = put_nvlist(zc, config)) != 0) | |
4685 | error = err; | |
428870ff BB |
4686 | nvlist_free(config); |
4687 | } | |
4688 | nvlist_free(policy); | |
4689 | } | |
4690 | } | |
4691 | ||
13fe0198 | 4692 | if (error != 0) |
b128c09f BB |
4693 | return (error); |
4694 | ||
428870ff | 4695 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4696 | |
4697 | if (zc->zc_guid == 0) { | |
4698 | vd = NULL; | |
b128c09f BB |
4699 | } else { |
4700 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4701 | if (vd == NULL) { |
b128c09f | 4702 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 4703 | spa_close(spa, FTAG); |
2e528b49 | 4704 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
4705 | } |
4706 | } | |
4707 | ||
b128c09f BB |
4708 | vdev_clear(spa, vd); |
4709 | ||
4710 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4711 | |
b128c09f BB |
4712 | /* |
4713 | * Resume any suspended I/Os. | |
4714 | */ | |
9babb374 | 4715 | if (zio_resume(spa) != 0) |
2e528b49 | 4716 | error = SET_ERROR(EIO); |
34dc7c2f BB |
4717 | |
4718 | spa_close(spa, FTAG); | |
4719 | ||
9babb374 | 4720 | return (error); |
34dc7c2f BB |
4721 | } |
4722 | ||
1bd201e7 CS |
4723 | static int |
4724 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4725 | { | |
4726 | spa_t *spa; | |
4727 | int error; | |
4728 | ||
4729 | error = spa_open(zc->zc_name, &spa, FTAG); | |
13fe0198 | 4730 | if (error != 0) |
1bd201e7 CS |
4731 | return (error); |
4732 | ||
4733 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
4734 | |
4735 | /* | |
4736 | * If a resilver is already in progress then set the | |
4737 | * spa_scrub_reopen flag to B_TRUE so that we don't restart | |
4738 | * the scan as a side effect of the reopen. Otherwise, let | |
4739 | * vdev_open() decided if a resilver is required. | |
4740 | */ | |
4741 | spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); | |
1bd201e7 | 4742 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
4743 | spa->spa_scrub_reopen = B_FALSE; |
4744 | ||
1bd201e7 CS |
4745 | (void) spa_vdev_state_exit(spa, NULL, 0); |
4746 | spa_close(spa, FTAG); | |
4747 | return (0); | |
4748 | } | |
34dc7c2f BB |
4749 | /* |
4750 | * inputs: | |
4751 | * zc_name name of filesystem | |
4752 | * zc_value name of origin snapshot | |
4753 | * | |
428870ff BB |
4754 | * outputs: |
4755 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4756 | */ |
4757 | static int | |
4758 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4759 | { | |
4760 | char *cp; | |
4761 | ||
4762 | /* | |
4763 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4764 | * it's easier. | |
4765 | */ | |
4766 | cp = strchr(zc->zc_value, '@'); | |
4767 | if (cp) | |
4768 | *cp = '\0'; | |
4769 | (void) dmu_objset_find(zc->zc_value, | |
13fe0198 | 4770 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 4771 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4772 | } |
4773 | ||
9babb374 BB |
4774 | /* |
4775 | * Retrieve a single {user|group}{used|quota}@... property. | |
4776 | * | |
4777 | * inputs: | |
4778 | * zc_name name of filesystem | |
4779 | * zc_objset_type zfs_userquota_prop_t | |
4780 | * zc_value domain name (eg. "S-1-234-567-89") | |
4781 | * zc_guid RID/UID/GID | |
4782 | * | |
4783 | * outputs: | |
4784 | * zc_cookie property value | |
4785 | */ | |
4786 | static int | |
4787 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4788 | { | |
3558fd73 | 4789 | zfs_sb_t *zsb; |
9babb374 BB |
4790 | int error; |
4791 | ||
4792 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 4793 | return (SET_ERROR(EINVAL)); |
9babb374 | 4794 | |
3558fd73 | 4795 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4796 | if (error != 0) |
9babb374 BB |
4797 | return (error); |
4798 | ||
3558fd73 | 4799 | error = zfs_userspace_one(zsb, |
9babb374 | 4800 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4801 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4802 | |
4803 | return (error); | |
4804 | } | |
4805 | ||
4806 | /* | |
4807 | * inputs: | |
4808 | * zc_name name of filesystem | |
4809 | * zc_cookie zap cursor | |
4810 | * zc_objset_type zfs_userquota_prop_t | |
4811 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4812 | * | |
4813 | * outputs: | |
4814 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4815 | * zc_cookie zap cursor | |
4816 | */ | |
4817 | static int | |
4818 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4819 | { | |
3558fd73 | 4820 | zfs_sb_t *zsb; |
428870ff | 4821 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4822 | int error; |
4823 | void *buf; | |
428870ff BB |
4824 | |
4825 | if (bufsize <= 0) | |
2e528b49 | 4826 | return (SET_ERROR(ENOMEM)); |
9babb374 | 4827 | |
3558fd73 | 4828 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4829 | if (error != 0) |
9babb374 BB |
4830 | return (error); |
4831 | ||
2b8cad61 | 4832 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4833 | |
3558fd73 | 4834 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4835 | buf, &zc->zc_nvlist_dst_size); |
4836 | ||
4837 | if (error == 0) { | |
4838 | error = xcopyout(buf, | |
4839 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4840 | zc->zc_nvlist_dst_size); | |
4841 | } | |
2b8cad61 | 4842 | vmem_free(buf, bufsize); |
3558fd73 | 4843 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4844 | |
4845 | return (error); | |
4846 | } | |
4847 | ||
4848 | /* | |
4849 | * inputs: | |
4850 | * zc_name name of filesystem | |
4851 | * | |
4852 | * outputs: | |
4853 | * none | |
4854 | */ | |
4855 | static int | |
4856 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4857 | { | |
4858 | objset_t *os; | |
428870ff | 4859 | int error = 0; |
3558fd73 | 4860 | zfs_sb_t *zsb; |
9babb374 | 4861 | |
3558fd73 BB |
4862 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4863 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4864 | /* |
4865 | * If userused is not enabled, it may be because the | |
4866 | * objset needs to be closed & reopened (to grow the | |
4867 | * objset_phys_t). Suspend/resume the fs will do that. | |
4868 | */ | |
3558fd73 | 4869 | error = zfs_suspend_fs(zsb); |
831baf06 KW |
4870 | if (error == 0) { |
4871 | dmu_objset_refresh_ownership(zsb->z_os, | |
4872 | zsb); | |
3558fd73 | 4873 | error = zfs_resume_fs(zsb, zc->zc_name); |
831baf06 | 4874 | } |
9babb374 BB |
4875 | } |
4876 | if (error == 0) | |
3558fd73 | 4877 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4878 | deactivate_super(zsb->z_sb); |
9babb374 | 4879 | } else { |
428870ff BB |
4880 | /* XXX kind of reading contents without owning */ |
4881 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4882 | if (error != 0) |
9babb374 BB |
4883 | return (error); |
4884 | ||
4885 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4886 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4887 | } |
4888 | ||
4889 | return (error); | |
4890 | } | |
4891 | ||
34dc7c2f BB |
4892 | static int |
4893 | zfs_ioc_share(zfs_cmd_t *zc) | |
4894 | { | |
2e528b49 | 4895 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
4896 | } |
4897 | ||
9babb374 BB |
4898 | ace_t full_access[] = { |
4899 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4900 | }; | |
4901 | ||
572e2857 BB |
4902 | /* |
4903 | * inputs: | |
4904 | * zc_name name of containing filesystem | |
4905 | * zc_obj object # beyond which we want next in-use object # | |
4906 | * | |
4907 | * outputs: | |
4908 | * zc_obj next in-use object # | |
4909 | */ | |
4910 | static int | |
4911 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4912 | { | |
4913 | objset_t *os = NULL; | |
4914 | int error; | |
4915 | ||
4916 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4917 | if (error != 0) |
572e2857 BB |
4918 | return (error); |
4919 | ||
7290cd3c | 4920 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0); |
572e2857 BB |
4921 | |
4922 | dmu_objset_rele(os, FTAG); | |
4923 | return (error); | |
4924 | } | |
4925 | ||
4926 | /* | |
4927 | * inputs: | |
4928 | * zc_name name of filesystem | |
4929 | * zc_value prefix name for snapshot | |
4930 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4931 | * | |
4932 | * outputs: | |
6f1ffb06 | 4933 | * zc_value short name of new snapshot |
572e2857 BB |
4934 | */ |
4935 | static int | |
4936 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4937 | { | |
4938 | char *snap_name; | |
13fe0198 | 4939 | char *hold_name; |
572e2857 | 4940 | int error; |
13fe0198 | 4941 | minor_t minor; |
572e2857 | 4942 | |
13fe0198 MA |
4943 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
4944 | if (error != 0) | |
572e2857 | 4945 | return (error); |
572e2857 | 4946 | |
13fe0198 MA |
4947 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
4948 | (u_longlong_t)ddi_get_lbolt64()); | |
4949 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
4950 | ||
4951 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
4952 | hold_name); | |
4953 | if (error == 0) | |
4954 | (void) strcpy(zc->zc_value, snap_name); | |
572e2857 | 4955 | strfree(snap_name); |
13fe0198 MA |
4956 | strfree(hold_name); |
4957 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4958 | return (error); | |
572e2857 BB |
4959 | } |
4960 | ||
4961 | /* | |
4962 | * inputs: | |
4963 | * zc_name name of "to" snapshot | |
4964 | * zc_value name of "from" snapshot | |
4965 | * zc_cookie file descriptor to write diff data on | |
4966 | * | |
4967 | * outputs: | |
4968 | * dmu_diff_record_t's to the file descriptor | |
4969 | */ | |
4970 | static int | |
4971 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4972 | { | |
572e2857 BB |
4973 | file_t *fp; |
4974 | offset_t off; | |
4975 | int error; | |
4976 | ||
572e2857 | 4977 | fp = getf(zc->zc_cookie); |
13fe0198 | 4978 | if (fp == NULL) |
2e528b49 | 4979 | return (SET_ERROR(EBADF)); |
572e2857 BB |
4980 | |
4981 | off = fp->f_offset; | |
4982 | ||
13fe0198 | 4983 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
4984 | |
4985 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4986 | fp->f_offset = off; | |
4987 | releasef(zc->zc_cookie); | |
4988 | ||
572e2857 BB |
4989 | return (error); |
4990 | } | |
4991 | ||
9babb374 BB |
4992 | /* |
4993 | * Remove all ACL files in shares dir | |
4994 | */ | |
3c9609b3 | 4995 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4996 | static int |
4997 | zfs_smb_acl_purge(znode_t *dzp) | |
4998 | { | |
4999 | zap_cursor_t zc; | |
5000 | zap_attribute_t zap; | |
3558fd73 | 5001 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
5002 | int error; |
5003 | ||
3558fd73 | 5004 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
5005 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
5006 | zap_cursor_advance(&zc)) { | |
5007 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
5008 | NULL, 0)) != 0) | |
5009 | break; | |
5010 | } | |
5011 | zap_cursor_fini(&zc); | |
5012 | return (error); | |
5013 | } | |
3c9609b3 | 5014 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5015 | |
5016 | static int | |
5017 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
5018 | { | |
3c9609b3 | 5019 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
5020 | vnode_t *vp; |
5021 | znode_t *dzp; | |
5022 | vnode_t *resourcevp = NULL; | |
5023 | znode_t *sharedir; | |
3558fd73 | 5024 | zfs_sb_t *zsb; |
9babb374 BB |
5025 | nvlist_t *nvlist; |
5026 | char *src, *target; | |
5027 | vattr_t vattr; | |
5028 | vsecattr_t vsec; | |
5029 | int error = 0; | |
5030 | ||
5031 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
5032 | NO_FOLLOW, NULL, &vp)) != 0) | |
5033 | return (error); | |
5034 | ||
5035 | /* Now make sure mntpnt and dataset are ZFS */ | |
5036 | ||
5037 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
5038 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
5039 | zc->zc_name) != 0)) { | |
5040 | VN_RELE(vp); | |
2e528b49 | 5041 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
5042 | } |
5043 | ||
5044 | dzp = VTOZ(vp); | |
3558fd73 BB |
5045 | zsb = ZTOZSB(dzp); |
5046 | ZFS_ENTER(zsb); | |
9babb374 BB |
5047 | |
5048 | /* | |
5049 | * Create share dir if its missing. | |
5050 | */ | |
3558fd73 BB |
5051 | mutex_enter(&zsb->z_lock); |
5052 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
5053 | dmu_tx_t *tx; |
5054 | ||
3558fd73 | 5055 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
5056 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
5057 | ZFS_SHARES_DIR); | |
5058 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
5059 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 5060 | if (error != 0) { |
9babb374 BB |
5061 | dmu_tx_abort(tx); |
5062 | } else { | |
3558fd73 | 5063 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
5064 | dmu_tx_commit(tx); |
5065 | } | |
13fe0198 | 5066 | if (error != 0) { |
3558fd73 | 5067 | mutex_exit(&zsb->z_lock); |
9babb374 | 5068 | VN_RELE(vp); |
3558fd73 | 5069 | ZFS_EXIT(zsb); |
9babb374 BB |
5070 | return (error); |
5071 | } | |
5072 | } | |
3558fd73 | 5073 | mutex_exit(&zsb->z_lock); |
9babb374 | 5074 | |
3558fd73 BB |
5075 | ASSERT(zsb->z_shares_dir); |
5076 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 5077 | VN_RELE(vp); |
3558fd73 | 5078 | ZFS_EXIT(zsb); |
9babb374 BB |
5079 | return (error); |
5080 | } | |
5081 | ||
5082 | switch (zc->zc_cookie) { | |
5083 | case ZFS_SMB_ACL_ADD: | |
5084 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
5085 | vattr.va_mode = S_IFREG|0777; |
5086 | vattr.va_uid = 0; | |
5087 | vattr.va_gid = 0; | |
5088 | ||
5089 | vsec.vsa_mask = VSA_ACE; | |
5090 | vsec.vsa_aclentp = &full_access; | |
5091 | vsec.vsa_aclentsz = sizeof (full_access); | |
5092 | vsec.vsa_aclcnt = 1; | |
5093 | ||
5094 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
5095 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
5096 | if (resourcevp) | |
5097 | VN_RELE(resourcevp); | |
5098 | break; | |
5099 | ||
5100 | case ZFS_SMB_ACL_REMOVE: | |
5101 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
5102 | NULL, 0); | |
5103 | break; | |
5104 | ||
5105 | case ZFS_SMB_ACL_RENAME: | |
5106 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
5107 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
5108 | VN_RELE(vp); | |
a4d179ef | 5109 | VN_RELE(ZTOV(sharedir)); |
3558fd73 | 5110 | ZFS_EXIT(zsb); |
9babb374 BB |
5111 | return (error); |
5112 | } | |
5113 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
5114 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
5115 | &target)) { | |
5116 | VN_RELE(vp); | |
5117 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 5118 | ZFS_EXIT(zsb); |
428870ff | 5119 | nvlist_free(nvlist); |
9babb374 BB |
5120 | return (error); |
5121 | } | |
5122 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
5123 | kcred, NULL, 0); | |
5124 | nvlist_free(nvlist); | |
5125 | break; | |
5126 | ||
5127 | case ZFS_SMB_ACL_PURGE: | |
5128 | error = zfs_smb_acl_purge(sharedir); | |
5129 | break; | |
5130 | ||
5131 | default: | |
2e528b49 | 5132 | error = SET_ERROR(EINVAL); |
9babb374 BB |
5133 | break; |
5134 | } | |
5135 | ||
5136 | VN_RELE(vp); | |
5137 | VN_RELE(ZTOV(sharedir)); | |
5138 | ||
3558fd73 | 5139 | ZFS_EXIT(zsb); |
9babb374 BB |
5140 | |
5141 | return (error); | |
325f0235 | 5142 | #else |
2e528b49 | 5143 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 5144 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5145 | } |
5146 | ||
45d1cae3 | 5147 | /* |
13fe0198 MA |
5148 | * innvl: { |
5149 | * "holds" -> { snapname -> holdname (string), ... } | |
5150 | * (optional) "cleanup_fd" -> fd (int32) | |
5151 | * } | |
45d1cae3 | 5152 | * |
13fe0198 MA |
5153 | * outnvl: { |
5154 | * snapname -> error value (int32) | |
5155 | * ... | |
5156 | * } | |
45d1cae3 | 5157 | */ |
13fe0198 | 5158 | /* ARGSUSED */ |
45d1cae3 | 5159 | static int |
13fe0198 | 5160 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 5161 | { |
fc581e05 | 5162 | nvpair_t *pair; |
13fe0198 MA |
5163 | nvlist_t *holds; |
5164 | int cleanup_fd = -1; | |
572e2857 BB |
5165 | int error; |
5166 | minor_t minor = 0; | |
45d1cae3 | 5167 | |
13fe0198 MA |
5168 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
5169 | if (error != 0) | |
2e528b49 | 5170 | return (SET_ERROR(EINVAL)); |
572e2857 | 5171 | |
fc581e05 JJS |
5172 | /* make sure the user didn't pass us any invalid (empty) tags */ |
5173 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
5174 | pair = nvlist_next_nvpair(holds, pair)) { | |
5175 | char *htag; | |
5176 | ||
5177 | error = nvpair_value_string(pair, &htag); | |
5178 | if (error != 0) | |
5179 | return (SET_ERROR(error)); | |
5180 | ||
5181 | if (strlen(htag) == 0) | |
5182 | return (SET_ERROR(EINVAL)); | |
5183 | } | |
5184 | ||
13fe0198 MA |
5185 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
5186 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
5187 | if (error != 0) | |
572e2857 | 5188 | return (error); |
572e2857 | 5189 | } |
572e2857 | 5190 | |
13fe0198 MA |
5191 | error = dsl_dataset_user_hold(holds, minor, errlist); |
5192 | if (minor != 0) | |
5193 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 5194 | return (error); |
45d1cae3 BB |
5195 | } |
5196 | ||
5197 | /* | |
13fe0198 | 5198 | * innvl is not used. |
45d1cae3 | 5199 | * |
13fe0198 MA |
5200 | * outnvl: { |
5201 | * holdname -> time added (uint64 seconds since epoch) | |
5202 | * ... | |
5203 | * } | |
45d1cae3 | 5204 | */ |
13fe0198 | 5205 | /* ARGSUSED */ |
45d1cae3 | 5206 | static int |
13fe0198 | 5207 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 5208 | { |
13fe0198 | 5209 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
5210 | } |
5211 | ||
5212 | /* | |
13fe0198 MA |
5213 | * innvl: { |
5214 | * snapname -> { holdname, ... } | |
5215 | * ... | |
5216 | * } | |
45d1cae3 | 5217 | * |
13fe0198 MA |
5218 | * outnvl: { |
5219 | * snapname -> error value (int32) | |
5220 | * ... | |
5221 | * } | |
45d1cae3 | 5222 | */ |
13fe0198 | 5223 | /* ARGSUSED */ |
45d1cae3 | 5224 | static int |
13fe0198 | 5225 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 5226 | { |
13fe0198 | 5227 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
5228 | } |
5229 | ||
26685276 BB |
5230 | /* |
5231 | * inputs: | |
5232 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 5233 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
5234 | * |
5235 | * outputs: | |
5236 | * zc_nvlist_dst next nvlist event | |
5237 | * zc_cookie dropped events since last get | |
26685276 BB |
5238 | */ |
5239 | static int | |
5240 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
5241 | { | |
5242 | zfs_zevent_t *ze; | |
5243 | nvlist_t *event = NULL; | |
5244 | minor_t minor; | |
5245 | uint64_t dropped = 0; | |
5246 | int error; | |
5247 | ||
5248 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5249 | if (error != 0) | |
5250 | return (error); | |
5251 | ||
5252 | do { | |
baa40d45 BB |
5253 | error = zfs_zevent_next(ze, &event, |
5254 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
5255 | if (event != NULL) { |
5256 | zc->zc_cookie = dropped; | |
5257 | error = put_nvlist(zc, event); | |
baa40d45 | 5258 | nvlist_free(event); |
26685276 BB |
5259 | } |
5260 | ||
5261 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
5262 | break; | |
5263 | ||
5264 | if ((error == 0) || (error != ENOENT)) | |
5265 | break; | |
5266 | ||
5267 | error = zfs_zevent_wait(ze); | |
13fe0198 | 5268 | if (error != 0) |
26685276 BB |
5269 | break; |
5270 | } while (1); | |
5271 | ||
5272 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5273 | ||
5274 | return (error); | |
5275 | } | |
5276 | ||
5277 | /* | |
5278 | * outputs: | |
5279 | * zc_cookie cleared events count | |
5280 | */ | |
5281 | static int | |
5282 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
5283 | { | |
5284 | int count; | |
5285 | ||
5286 | zfs_zevent_drain_all(&count); | |
5287 | zc->zc_cookie = count; | |
5288 | ||
d1d7e268 | 5289 | return (0); |
26685276 BB |
5290 | } |
5291 | ||
75e3ff58 BB |
5292 | /* |
5293 | * inputs: | |
5294 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5295 | * zc_cleanup zevent file descriptor | |
5296 | */ | |
5297 | static int | |
5298 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5299 | { | |
5300 | zfs_zevent_t *ze; | |
5301 | minor_t minor; | |
5302 | int error; | |
5303 | ||
5304 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5305 | if (error != 0) | |
5306 | return (error); | |
5307 | ||
5308 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5309 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5310 | ||
5311 | return (error); | |
5312 | } | |
5313 | ||
330d06f9 MA |
5314 | /* |
5315 | * inputs: | |
5316 | * zc_name name of new filesystem or snapshot | |
5317 | * zc_value full name of old snapshot | |
5318 | * | |
5319 | * outputs: | |
5320 | * zc_cookie space in bytes | |
5321 | * zc_objset_type compressed space in bytes | |
5322 | * zc_perm_action uncompressed space in bytes | |
5323 | */ | |
5324 | static int | |
5325 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5326 | { | |
5327 | int error; | |
13fe0198 | 5328 | dsl_pool_t *dp; |
330d06f9 MA |
5329 | dsl_dataset_t *new, *old; |
5330 | ||
13fe0198 | 5331 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5332 | if (error != 0) |
5333 | return (error); | |
13fe0198 MA |
5334 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5335 | if (error != 0) { | |
5336 | dsl_pool_rele(dp, FTAG); | |
5337 | return (error); | |
5338 | } | |
5339 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5340 | if (error != 0) { |
5341 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5342 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5343 | return (error); |
5344 | } | |
5345 | ||
5346 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5347 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5348 | dsl_dataset_rele(old, FTAG); | |
5349 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5350 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5351 | return (error); |
5352 | } | |
5353 | ||
5354 | /* | |
6f1ffb06 MA |
5355 | * innvl: { |
5356 | * "firstsnap" -> snapshot name | |
5357 | * } | |
330d06f9 | 5358 | * |
6f1ffb06 MA |
5359 | * outnvl: { |
5360 | * "used" -> space in bytes | |
5361 | * "compressed" -> compressed space in bytes | |
5362 | * "uncompressed" -> uncompressed space in bytes | |
5363 | * } | |
330d06f9 MA |
5364 | */ |
5365 | static int | |
6f1ffb06 | 5366 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
5367 | { |
5368 | int error; | |
13fe0198 | 5369 | dsl_pool_t *dp; |
330d06f9 | 5370 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
5371 | char *firstsnap; |
5372 | uint64_t used, comp, uncomp; | |
330d06f9 | 5373 | |
6f1ffb06 | 5374 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
2e528b49 | 5375 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5376 | |
13fe0198 | 5377 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5378 | if (error != 0) |
5379 | return (error); | |
13fe0198 MA |
5380 | |
5381 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
71e2fe41 AG |
5382 | if (error == 0 && !new->ds_is_snapshot) { |
5383 | dsl_dataset_rele(new, FTAG); | |
5384 | error = SET_ERROR(EINVAL); | |
5385 | } | |
13fe0198 MA |
5386 | if (error != 0) { |
5387 | dsl_pool_rele(dp, FTAG); | |
5388 | return (error); | |
5389 | } | |
5390 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
71e2fe41 AG |
5391 | if (error == 0 && !old->ds_is_snapshot) { |
5392 | dsl_dataset_rele(old, FTAG); | |
5393 | error = SET_ERROR(EINVAL); | |
5394 | } | |
330d06f9 MA |
5395 | if (error != 0) { |
5396 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5397 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5398 | return (error); |
5399 | } | |
5400 | ||
6f1ffb06 | 5401 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5402 | dsl_dataset_rele(old, FTAG); |
5403 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5404 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5405 | fnvlist_add_uint64(outnvl, "used", used); |
5406 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5407 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5408 | return (error); |
5409 | } | |
5410 | ||
34dc7c2f | 5411 | /* |
6f1ffb06 MA |
5412 | * innvl: { |
5413 | * "fd" -> file descriptor to write stream to (int32) | |
5414 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
f1512ee6 MA |
5415 | * (optional) "largeblockok" -> (value ignored) |
5416 | * indicates that blocks > 128KB are permitted | |
9b67f605 MA |
5417 | * (optional) "embedok" -> (value ignored) |
5418 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
2aa34383 DK |
5419 | * (optional) "compressok" -> (value ignored) |
5420 | * presence indicates compressed DRR_WRITE records are permitted | |
47dfff3b MA |
5421 | * (optional) "resume_object" and "resume_offset" -> (uint64) |
5422 | * if present, resume send stream from specified object and offset. | |
6f1ffb06 MA |
5423 | * } |
5424 | * | |
5425 | * outnvl is unused | |
34dc7c2f | 5426 | */ |
6f1ffb06 MA |
5427 | /* ARGSUSED */ |
5428 | static int | |
5429 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5430 | { | |
6f1ffb06 MA |
5431 | int error; |
5432 | offset_t off; | |
13fe0198 | 5433 | char *fromname = NULL; |
6f1ffb06 | 5434 | int fd; |
13fe0198 | 5435 | file_t *fp; |
f1512ee6 | 5436 | boolean_t largeblockok; |
9b67f605 | 5437 | boolean_t embedok; |
2aa34383 | 5438 | boolean_t compressok; |
47dfff3b MA |
5439 | uint64_t resumeobj = 0; |
5440 | uint64_t resumeoff = 0; | |
6f1ffb06 MA |
5441 | |
5442 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5443 | if (error != 0) | |
2e528b49 | 5444 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5445 | |
13fe0198 | 5446 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5447 | |
f1512ee6 | 5448 | largeblockok = nvlist_exists(innvl, "largeblockok"); |
9b67f605 | 5449 | embedok = nvlist_exists(innvl, "embedok"); |
2aa34383 | 5450 | compressok = nvlist_exists(innvl, "compressok"); |
9b67f605 | 5451 | |
47dfff3b MA |
5452 | (void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj); |
5453 | (void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff); | |
5454 | ||
13fe0198 | 5455 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 5456 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
5457 | |
5458 | off = fp->f_offset; | |
2aa34383 DK |
5459 | error = dmu_send(snapname, fromname, embedok, largeblockok, compressok, |
5460 | fd, resumeobj, resumeoff, fp->f_vnode, &off); | |
6f1ffb06 MA |
5461 | |
5462 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5463 | fp->f_offset = off; | |
13fe0198 | 5464 | |
6f1ffb06 | 5465 | releasef(fd); |
6f1ffb06 MA |
5466 | return (error); |
5467 | } | |
5468 | ||
5469 | /* | |
5470 | * Determine approximately how large a zfs send stream will be -- the number | |
5471 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5472 | * | |
5473 | * innvl: { | |
5dc8b736 MG |
5474 | * (optional) "from" -> full snap or bookmark name to send an incremental |
5475 | * from | |
2aa34383 DK |
5476 | * (optional) "largeblockok" -> (value ignored) |
5477 | * indicates that blocks > 128KB are permitted | |
5478 | * (optional) "embedok" -> (value ignored) | |
5479 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
5480 | * (optional) "compressok" -> (value ignored) | |
5481 | * presence indicates compressed DRR_WRITE records are permitted | |
6f1ffb06 MA |
5482 | * } |
5483 | * | |
5484 | * outnvl: { | |
5485 | * "space" -> bytes of space (uint64) | |
5486 | * } | |
5487 | */ | |
5488 | static int | |
5489 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5490 | { | |
13fe0198 | 5491 | dsl_pool_t *dp; |
13fe0198 | 5492 | dsl_dataset_t *tosnap; |
6f1ffb06 MA |
5493 | int error; |
5494 | char *fromname; | |
2aa34383 DK |
5495 | /* LINTED E_FUNC_SET_NOT_USED */ |
5496 | boolean_t largeblockok; | |
5497 | /* LINTED E_FUNC_SET_NOT_USED */ | |
5498 | boolean_t embedok; | |
5499 | boolean_t compressok; | |
6f1ffb06 MA |
5500 | uint64_t space; |
5501 | ||
13fe0198 MA |
5502 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5503 | if (error != 0) | |
6f1ffb06 MA |
5504 | return (error); |
5505 | ||
13fe0198 MA |
5506 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5507 | if (error != 0) { | |
5508 | dsl_pool_rele(dp, FTAG); | |
5509 | return (error); | |
5510 | } | |
5511 | ||
2aa34383 DK |
5512 | largeblockok = nvlist_exists(innvl, "largeblockok"); |
5513 | embedok = nvlist_exists(innvl, "embedok"); | |
5514 | compressok = nvlist_exists(innvl, "compressok"); | |
5515 | ||
5dc8b736 | 5516 | error = nvlist_lookup_string(innvl, "from", &fromname); |
6f1ffb06 | 5517 | if (error == 0) { |
5dc8b736 MG |
5518 | if (strchr(fromname, '@') != NULL) { |
5519 | /* | |
5520 | * If from is a snapshot, hold it and use the more | |
5521 | * efficient dmu_send_estimate to estimate send space | |
5522 | * size using deadlists. | |
5523 | */ | |
5524 | dsl_dataset_t *fromsnap; | |
5525 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); | |
5526 | if (error != 0) | |
5527 | goto out; | |
2aa34383 DK |
5528 | error = dmu_send_estimate(tosnap, fromsnap, compressok, |
5529 | &space); | |
5dc8b736 MG |
5530 | dsl_dataset_rele(fromsnap, FTAG); |
5531 | } else if (strchr(fromname, '#') != NULL) { | |
5532 | /* | |
5533 | * If from is a bookmark, fetch the creation TXG of the | |
5534 | * snapshot it was created from and use that to find | |
5535 | * blocks that were born after it. | |
5536 | */ | |
5537 | zfs_bookmark_phys_t frombm; | |
5538 | ||
5539 | error = dsl_bookmark_lookup(dp, fromname, tosnap, | |
5540 | &frombm); | |
5541 | if (error != 0) | |
5542 | goto out; | |
5543 | error = dmu_send_estimate_from_txg(tosnap, | |
2aa34383 | 5544 | frombm.zbm_creation_txg, compressok, &space); |
5dc8b736 MG |
5545 | } else { |
5546 | /* | |
5547 | * from is not properly formatted as a snapshot or | |
5548 | * bookmark | |
5549 | */ | |
5550 | error = SET_ERROR(EINVAL); | |
5551 | goto out; | |
6f1ffb06 | 5552 | } |
5dc8b736 MG |
5553 | } else { |
5554 | // If estimating the size of a full send, use dmu_send_estimate | |
2aa34383 | 5555 | error = dmu_send_estimate(tosnap, NULL, compressok, &space); |
6f1ffb06 MA |
5556 | } |
5557 | ||
6f1ffb06 MA |
5558 | fnvlist_add_uint64(outnvl, "space", space); |
5559 | ||
5dc8b736 | 5560 | out: |
13fe0198 MA |
5561 | dsl_dataset_rele(tosnap, FTAG); |
5562 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5563 | return (error); |
5564 | } | |
5565 | ||
6f1ffb06 MA |
5566 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; |
5567 | ||
5568 | static void | |
5569 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5570 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5571 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
5572 | { | |
5573 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5574 | ||
5575 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5576 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5577 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5578 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5579 | ||
5580 | vec->zvec_legacy_func = func; | |
5581 | vec->zvec_secpolicy = secpolicy; | |
5582 | vec->zvec_namecheck = namecheck; | |
5583 | vec->zvec_allow_log = log_history; | |
5584 | vec->zvec_pool_check = pool_check; | |
5585 | } | |
5586 | ||
5587 | /* | |
5588 | * See the block comment at the beginning of this file for details on | |
5589 | * each argument to this function. | |
5590 | */ | |
5591 | static void | |
5592 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
5593 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5594 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
5595 | boolean_t allow_log) | |
5596 | { | |
5597 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5598 | ||
5599 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5600 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5601 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5602 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5603 | ||
5604 | /* if we are logging, the name must be valid */ | |
5605 | ASSERT(!allow_log || namecheck != NO_NAME); | |
5606 | ||
5607 | vec->zvec_name = name; | |
5608 | vec->zvec_func = func; | |
5609 | vec->zvec_secpolicy = secpolicy; | |
5610 | vec->zvec_namecheck = namecheck; | |
5611 | vec->zvec_pool_check = pool_check; | |
5612 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
5613 | vec->zvec_allow_log = allow_log; | |
5614 | } | |
5615 | ||
5616 | static void | |
5617 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5618 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
5619 | zfs_ioc_poolcheck_t pool_check) | |
5620 | { | |
5621 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5622 | POOL_NAME, log_history, pool_check); | |
5623 | } | |
5624 | ||
5625 | static void | |
5626 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5627 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
5628 | { | |
5629 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5630 | DATASET_NAME, B_FALSE, pool_check); | |
5631 | } | |
5632 | ||
5633 | static void | |
5634 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5635 | { | |
5636 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
5637 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5638 | } | |
5639 | ||
5640 | static void | |
5641 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5642 | zfs_secpolicy_func_t *secpolicy) | |
5643 | { | |
5644 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5645 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5646 | } | |
5647 | ||
5648 | static void | |
5649 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
5650 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
5651 | { | |
5652 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5653 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
5654 | } | |
5655 | ||
5656 | static void | |
5657 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5658 | { | |
5659 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
5660 | zfs_secpolicy_read); | |
5661 | } | |
5662 | ||
5663 | static void | |
5664 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5665 | zfs_secpolicy_func_t *secpolicy) | |
5666 | { | |
5667 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5668 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5669 | } | |
5670 | ||
5671 | static void | |
5672 | zfs_ioctl_init(void) | |
5673 | { | |
5674 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
5675 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
5676 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5677 | ||
5678 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
5679 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
5680 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
5681 | ||
5682 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
5683 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
5684 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5685 | ||
5686 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
5687 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
5688 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5689 | ||
5690 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
5691 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
5692 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5693 | ||
5694 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
5695 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
5696 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5697 | ||
5698 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
5699 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
5700 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5701 | ||
5702 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
5703 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
5704 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5705 | ||
13fe0198 MA |
5706 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
5707 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
5708 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5709 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
5710 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
5711 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5712 | ||
5713 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
5714 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
5715 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5716 | ||
46ba1e59 MA |
5717 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
5718 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
5719 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); | |
5720 | ||
da536844 MA |
5721 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
5722 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
5723 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5724 | ||
5725 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
5726 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
5727 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5728 | ||
5729 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
5730 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
5731 | POOL_NAME, | |
5732 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5733 | ||
43e52edd BB |
5734 | zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW, |
5735 | zfs_ioc_recv_new, zfs_secpolicy_recv_new, DATASET_NAME, | |
5736 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5737 | ||
6f1ffb06 MA |
5738 | /* IOCTLS that use the legacy function signature */ |
5739 | ||
5740 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
5741 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
5742 | ||
5743 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
5744 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5745 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
5746 | zfs_ioc_pool_scan); | |
5747 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
5748 | zfs_ioc_pool_upgrade); | |
5749 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
5750 | zfs_ioc_vdev_add); | |
5751 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
5752 | zfs_ioc_vdev_remove); | |
5753 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
5754 | zfs_ioc_vdev_set_state); | |
5755 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
5756 | zfs_ioc_vdev_attach); | |
5757 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
5758 | zfs_ioc_vdev_detach); | |
5759 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
5760 | zfs_ioc_vdev_setpath); | |
5761 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
5762 | zfs_ioc_vdev_setfru); | |
5763 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
5764 | zfs_ioc_pool_set_props); | |
5765 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
5766 | zfs_ioc_vdev_split); | |
5767 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
5768 | zfs_ioc_pool_reguid); | |
5769 | ||
5770 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
5771 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
5772 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
5773 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
5774 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
5775 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
5776 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
5777 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
5778 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
5779 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
5780 | ||
5781 | /* | |
5782 | * pool destroy, and export don't log the history as part of | |
5783 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
5784 | * does the logging of those commands. | |
5785 | */ | |
5786 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
87a63dd7 | 5787 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 | 5788 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, |
87a63dd7 | 5789 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 MA |
5790 | |
5791 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
5792 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5793 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
5794 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5795 | ||
5796 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
5797 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
5798 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
5799 | zfs_ioc_dsobj_to_dsname, | |
5800 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
5801 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
5802 | zfs_ioc_pool_get_history, | |
5803 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
5804 | ||
5805 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
5806 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5807 | ||
5808 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
ac72fac3 | 5809 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); |
6f1ffb06 MA |
5810 | zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
5811 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5812 | ||
5813 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
5814 | zfs_ioc_space_written); | |
6f1ffb06 MA |
5815 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
5816 | zfs_ioc_objset_recvd_props); | |
5817 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
5818 | zfs_ioc_next_obj); | |
5819 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
5820 | zfs_ioc_get_fsacl); | |
5821 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
5822 | zfs_ioc_objset_stats); | |
5823 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
5824 | zfs_ioc_objset_zplprops); | |
5825 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
5826 | zfs_ioc_dataset_list_next); | |
5827 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
5828 | zfs_ioc_snapshot_list_next); | |
5829 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
5830 | zfs_ioc_send_progress); | |
5831 | ||
5832 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
5833 | zfs_ioc_diff, zfs_secpolicy_diff); | |
5834 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
5835 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
5836 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
5837 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
5838 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
5839 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
5840 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
5841 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
5842 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
5843 | zfs_ioc_send, zfs_secpolicy_send); | |
5844 | ||
5845 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
5846 | zfs_secpolicy_none); | |
5847 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
5848 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
5849 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
5850 | zfs_secpolicy_rename); | |
5851 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
5852 | zfs_secpolicy_recv); | |
5853 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
5854 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
5855 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
5856 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
5857 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
5858 | zfs_secpolicy_set_fsacl); | |
5859 | ||
5860 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
5861 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
5862 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
5863 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
5864 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
5865 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
5866 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5867 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
5868 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
5869 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5870 | ||
5871 | /* | |
ba6a2402 | 5872 | * ZoL functions |
6f1ffb06 | 5873 | */ |
6f1ffb06 MA |
5874 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
5875 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5876 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
5877 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
5878 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
5879 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 5880 | } |
34dc7c2f | 5881 | |
9babb374 | 5882 | int |
572e2857 BB |
5883 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
5884 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
5885 | { |
5886 | spa_t *spa; | |
5887 | int error; | |
5888 | ||
5889 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
5890 | ||
572e2857 BB |
5891 | if (check & POOL_CHECK_NONE) |
5892 | return (0); | |
5893 | ||
9babb374 BB |
5894 | error = spa_open(name, &spa, FTAG); |
5895 | if (error == 0) { | |
572e2857 | 5896 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 5897 | error = SET_ERROR(EAGAIN); |
572e2857 | 5898 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 5899 | error = SET_ERROR(EROFS); |
9babb374 BB |
5900 | spa_close(spa, FTAG); |
5901 | } | |
5902 | return (error); | |
5903 | } | |
5904 | ||
325f0235 BB |
5905 | static void * |
5906 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
5907 | { | |
5908 | zfsdev_state_t *zs; | |
5909 | ||
3937ab20 | 5910 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 5911 | if (zs->zs_minor == minor) { |
3937ab20 | 5912 | smp_rmb(); |
325f0235 | 5913 | switch (which) { |
d1d7e268 MK |
5914 | case ZST_ONEXIT: |
5915 | return (zs->zs_onexit); | |
5916 | case ZST_ZEVENT: | |
5917 | return (zs->zs_zevent); | |
5918 | case ZST_ALL: | |
5919 | return (zs); | |
325f0235 BB |
5920 | } |
5921 | } | |
5922 | } | |
5923 | ||
d1d7e268 | 5924 | return (NULL); |
325f0235 BB |
5925 | } |
5926 | ||
5927 | void * | |
5928 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
5929 | { | |
5930 | void *ptr; | |
5931 | ||
325f0235 | 5932 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 5933 | |
d1d7e268 | 5934 | return (ptr); |
325f0235 BB |
5935 | } |
5936 | ||
72540ea3 RY |
5937 | int |
5938 | zfsdev_getminor(struct file *filp, minor_t *minorp) | |
325f0235 | 5939 | { |
72540ea3 RY |
5940 | zfsdev_state_t *zs, *fpd; |
5941 | ||
325f0235 | 5942 | ASSERT(filp != NULL); |
72540ea3 RY |
5943 | ASSERT(!MUTEX_HELD(&zfsdev_state_lock)); |
5944 | ||
5945 | fpd = filp->private_data; | |
5946 | if (fpd == NULL) | |
5947 | return (EBADF); | |
5948 | ||
5949 | mutex_enter(&zfsdev_state_lock); | |
5950 | ||
5951 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
5952 | ||
5953 | if (zs->zs_minor == -1) | |
5954 | continue; | |
5955 | ||
5956 | if (fpd == zs) { | |
5957 | *minorp = fpd->zs_minor; | |
5958 | mutex_exit(&zfsdev_state_lock); | |
5959 | return (0); | |
5960 | } | |
5961 | } | |
5962 | ||
5963 | mutex_exit(&zfsdev_state_lock); | |
325f0235 | 5964 | |
72540ea3 | 5965 | return (EBADF); |
325f0235 BB |
5966 | } |
5967 | ||
572e2857 | 5968 | /* |
325f0235 BB |
5969 | * Find a free minor number. The zfsdev_state_list is expected to |
5970 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
5971 | */ |
5972 | minor_t | |
5973 | zfsdev_minor_alloc(void) | |
5974 | { | |
325f0235 | 5975 | static minor_t last_minor = 0; |
572e2857 BB |
5976 | minor_t m; |
5977 | ||
5978 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
5979 | ||
5980 | for (m = last_minor + 1; m != last_minor; m++) { | |
5981 | if (m > ZFSDEV_MAX_MINOR) | |
5982 | m = 1; | |
325f0235 | 5983 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
5984 | last_minor = m; |
5985 | return (m); | |
5986 | } | |
5987 | } | |
5988 | ||
5989 | return (0); | |
5990 | } | |
5991 | ||
5992 | static int | |
325f0235 | 5993 | zfsdev_state_init(struct file *filp) |
572e2857 | 5994 | { |
3937ab20 | 5995 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 5996 | minor_t minor; |
3937ab20 | 5997 | boolean_t newzs = B_FALSE; |
572e2857 BB |
5998 | |
5999 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 6000 | |
d1d7e268 MK |
6001 | minor = zfsdev_minor_alloc(); |
6002 | if (minor == 0) | |
6003 | return (SET_ERROR(ENXIO)); | |
325f0235 | 6004 | |
3937ab20 TC |
6005 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
6006 | if (zs->zs_minor == -1) | |
6007 | break; | |
6008 | zsprev = zs; | |
6009 | } | |
6010 | ||
6011 | if (!zs) { | |
6012 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
6013 | newzs = B_TRUE; | |
6014 | } | |
572e2857 | 6015 | |
325f0235 | 6016 | zs->zs_file = filp; |
325f0235 | 6017 | filp->private_data = zs; |
572e2857 | 6018 | |
325f0235 BB |
6019 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
6020 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 6021 | |
3937ab20 TC |
6022 | |
6023 | /* | |
6024 | * In order to provide for lock-free concurrent read access | |
6025 | * to the minor list in zfsdev_get_state_impl(), new entries | |
6026 | * must be completely written before linking them into the | |
6027 | * list whereas existing entries are already linked; the last | |
6028 | * operation must be updating zs_minor (from -1 to the new | |
6029 | * value). | |
6030 | */ | |
6031 | if (newzs) { | |
6032 | zs->zs_minor = minor; | |
6033 | smp_wmb(); | |
6034 | zsprev->zs_next = zs; | |
6035 | } else { | |
6036 | smp_wmb(); | |
6037 | zs->zs_minor = minor; | |
6038 | } | |
572e2857 BB |
6039 | |
6040 | return (0); | |
6041 | } | |
6042 | ||
325f0235 BB |
6043 | static int |
6044 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 6045 | { |
325f0235 | 6046 | zfsdev_state_t *zs; |
572e2857 | 6047 | |
325f0235 BB |
6048 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
6049 | ASSERT(filp->private_data != NULL); | |
572e2857 | 6050 | |
325f0235 | 6051 | zs = filp->private_data; |
3937ab20 | 6052 | zs->zs_minor = -1; |
325f0235 BB |
6053 | zfs_onexit_destroy(zs->zs_onexit); |
6054 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 6055 | |
d1d7e268 | 6056 | return (0); |
572e2857 BB |
6057 | } |
6058 | ||
6059 | static int | |
325f0235 | 6060 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 6061 | { |
325f0235 | 6062 | int error; |
572e2857 | 6063 | |
325f0235 BB |
6064 | mutex_enter(&zfsdev_state_lock); |
6065 | error = zfsdev_state_init(filp); | |
6066 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 6067 | |
325f0235 | 6068 | return (-error); |
572e2857 BB |
6069 | } |
6070 | ||
6071 | static int | |
325f0235 | 6072 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 6073 | { |
325f0235 | 6074 | int error; |
572e2857 BB |
6075 | |
6076 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 6077 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
6078 | mutex_exit(&zfsdev_state_lock); |
6079 | ||
325f0235 | 6080 | return (-error); |
572e2857 BB |
6081 | } |
6082 | ||
325f0235 BB |
6083 | static long |
6084 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
6085 | { |
6086 | zfs_cmd_t *zc; | |
6f1ffb06 | 6087 | uint_t vecnum; |
4fd762f8 | 6088 | int error, rc, flag = 0; |
6f1ffb06 | 6089 | const zfs_ioc_vec_t *vec; |
fb8e608d | 6090 | char *saved_poolname = NULL; |
6f1ffb06 | 6091 | nvlist_t *innvl = NULL; |
40d06e3c | 6092 | fstrans_cookie_t cookie; |
6f1ffb06 MA |
6093 | |
6094 | vecnum = cmd - ZFS_IOC_FIRST; | |
6095 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
2e528b49 | 6096 | return (-SET_ERROR(EINVAL)); |
6f1ffb06 | 6097 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 6098 | |
2e0358cb BB |
6099 | /* |
6100 | * The registered ioctl list may be sparse, verify that either | |
6101 | * a normal or legacy handler are registered. | |
6102 | */ | |
6103 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
6104 | return (-SET_ERROR(EINVAL)); | |
6105 | ||
efcd79a8 | 6106 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
34dc7c2f | 6107 | |
9babb374 | 6108 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 6109 | if (error != 0) { |
2e528b49 | 6110 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
6111 | goto out; |
6112 | } | |
34dc7c2f | 6113 | |
6f1ffb06 | 6114 | zc->zc_iflags = flag & FKIOCTL; |
f74b821a BB |
6115 | if (zc->zc_nvlist_src_size > MAX_NVLIST_SRC_SIZE) { |
6116 | /* | |
6117 | * Make sure the user doesn't pass in an insane value for | |
6118 | * zc_nvlist_src_size. We have to check, since we will end | |
6119 | * up allocating that much memory inside of get_nvlist(). This | |
6120 | * prevents a nefarious user from allocating tons of kernel | |
6121 | * memory. | |
6122 | * | |
6123 | * Also, we return EINVAL instead of ENOMEM here. The reason | |
6124 | * being that returning ENOMEM from an ioctl() has a special | |
6125 | * connotation; that the user's size value is too small and | |
6126 | * needs to be expanded to hold the nvlist. See | |
6127 | * zcmd_expand_dst_nvlist() for details. | |
6128 | */ | |
6129 | error = SET_ERROR(EINVAL); /* User's size too big */ | |
6130 | ||
6131 | } else if (zc->zc_nvlist_src_size != 0) { | |
6f1ffb06 MA |
6132 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
6133 | zc->zc_iflags, &innvl); | |
6134 | if (error != 0) | |
6135 | goto out; | |
6136 | } | |
34dc7c2f BB |
6137 | |
6138 | /* | |
6139 | * Ensure that all pool/dataset names are valid before we pass down to | |
6140 | * the lower layers. | |
6141 | */ | |
6f1ffb06 MA |
6142 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
6143 | switch (vec->zvec_namecheck) { | |
6144 | case POOL_NAME: | |
6145 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 6146 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 6147 | else |
572e2857 | 6148 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
6149 | vec->zvec_namecheck, vec->zvec_pool_check); |
6150 | break; | |
34dc7c2f | 6151 | |
6f1ffb06 MA |
6152 | case DATASET_NAME: |
6153 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 6154 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 6155 | else |
572e2857 | 6156 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
6157 | vec->zvec_namecheck, vec->zvec_pool_check); |
6158 | break; | |
34dc7c2f | 6159 | |
6f1ffb06 MA |
6160 | case NO_NAME: |
6161 | break; | |
34dc7c2f BB |
6162 | } |
6163 | ||
34dc7c2f | 6164 | |
ddab862d TC |
6165 | if (error == 0 && !(flag & FKIOCTL)) { |
6166 | cookie = spl_fstrans_mark(); | |
6f1ffb06 | 6167 | error = vec->zvec_secpolicy(zc, innvl, CRED()); |
ddab862d TC |
6168 | spl_fstrans_unmark(cookie); |
6169 | } | |
6f1ffb06 MA |
6170 | |
6171 | if (error != 0) | |
6172 | goto out; | |
6173 | ||
6174 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
6175 | saved_poolname = strdup(zc->zc_name); |
6176 | if (saved_poolname == NULL) { | |
6177 | error = SET_ERROR(ENOMEM); | |
6178 | goto out; | |
6179 | } else { | |
6180 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
6181 | } | |
6f1ffb06 MA |
6182 | |
6183 | if (vec->zvec_func != NULL) { | |
6184 | nvlist_t *outnvl; | |
6185 | int puterror = 0; | |
6186 | spa_t *spa; | |
6187 | nvlist_t *lognv = NULL; | |
6188 | ||
6189 | ASSERT(vec->zvec_legacy_func == NULL); | |
6190 | ||
6191 | /* | |
6192 | * Add the innvl to the lognv before calling the func, | |
6193 | * in case the func changes the innvl. | |
6194 | */ | |
6195 | if (vec->zvec_allow_log) { | |
6196 | lognv = fnvlist_alloc(); | |
6197 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
6198 | vec->zvec_name); | |
6199 | if (!nvlist_empty(innvl)) { | |
6200 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
6201 | innvl); | |
6202 | } | |
6203 | } | |
6204 | ||
79c76d5b | 6205 | outnvl = fnvlist_alloc(); |
40d06e3c | 6206 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 6207 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
40d06e3c | 6208 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
6209 | |
6210 | if (error == 0 && vec->zvec_allow_log && | |
6211 | spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
6212 | if (!nvlist_empty(outnvl)) { | |
6213 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
6214 | outnvl); | |
6215 | } | |
6216 | (void) spa_history_log_nvl(spa, lognv); | |
6217 | spa_close(spa, FTAG); | |
6218 | } | |
6219 | fnvlist_free(lognv); | |
6220 | ||
6221 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
6222 | int smusherror = 0; | |
6223 | if (vec->zvec_smush_outnvlist) { | |
6224 | smusherror = nvlist_smush(outnvl, | |
6225 | zc->zc_nvlist_dst_size); | |
6226 | } | |
6227 | if (smusherror == 0) | |
6228 | puterror = put_nvlist(zc, outnvl); | |
6229 | } | |
6230 | ||
6231 | if (puterror != 0) | |
6232 | error = puterror; | |
6233 | ||
6234 | nvlist_free(outnvl); | |
6235 | } else { | |
40d06e3c | 6236 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 6237 | error = vec->zvec_legacy_func(zc); |
40d06e3c | 6238 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
6239 | } |
6240 | ||
6241 | out: | |
6242 | nvlist_free(innvl); | |
9babb374 | 6243 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 6244 | if (error == 0 && rc != 0) |
2e528b49 | 6245 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
6246 | if (error == 0 && vec->zvec_allow_log) { |
6247 | char *s = tsd_get(zfs_allow_log_key); | |
6248 | if (s != NULL) | |
6249 | strfree(s); | |
fb8e608d TC |
6250 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
6251 | } else { | |
6252 | if (saved_poolname != NULL) | |
4fd762f8 | 6253 | strfree(saved_poolname); |
34dc7c2f BB |
6254 | } |
6255 | ||
6256 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 6257 | return (-error); |
34dc7c2f BB |
6258 | } |
6259 | ||
325f0235 BB |
6260 | #ifdef CONFIG_COMPAT |
6261 | static long | |
6262 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 6263 | { |
d1d7e268 | 6264 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
6265 | } |
6266 | #else | |
d1d7e268 | 6267 | #define zfsdev_compat_ioctl NULL |
325f0235 | 6268 | #endif |
34dc7c2f | 6269 | |
325f0235 | 6270 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
6271 | .open = zfsdev_open, |
6272 | .release = zfsdev_release, | |
6273 | .unlocked_ioctl = zfsdev_ioctl, | |
6274 | .compat_ioctl = zfsdev_compat_ioctl, | |
6275 | .owner = THIS_MODULE, | |
325f0235 | 6276 | }; |
34dc7c2f | 6277 | |
325f0235 | 6278 | static struct miscdevice zfs_misc = { |
d1d7e268 MK |
6279 | .minor = MISC_DYNAMIC_MINOR, |
6280 | .name = ZFS_DRIVER, | |
6281 | .fops = &zfsdev_fops, | |
325f0235 | 6282 | }; |
34dc7c2f BB |
6283 | |
6284 | static int | |
325f0235 | 6285 | zfs_attach(void) |
34dc7c2f | 6286 | { |
325f0235 | 6287 | int error; |
34dc7c2f | 6288 | |
325f0235 | 6289 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
6290 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
6291 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 6292 | |
325f0235 | 6293 | error = misc_register(&zfs_misc); |
d1d7e268 | 6294 | if (error != 0) { |
325f0235 BB |
6295 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); |
6296 | return (error); | |
6297 | } | |
34dc7c2f | 6298 | |
325f0235 | 6299 | return (0); |
34dc7c2f BB |
6300 | } |
6301 | ||
325f0235 BB |
6302 | static void |
6303 | zfs_detach(void) | |
34dc7c2f | 6304 | { |
3937ab20 | 6305 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 6306 | |
324dcd37 | 6307 | misc_deregister(&zfs_misc); |
325f0235 | 6308 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
6309 | |
6310 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
6311 | if (zsprev) | |
6312 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
6313 | zsprev = zs; | |
6314 | } | |
6315 | if (zsprev) | |
6316 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
6317 | } |
6318 | ||
6f1ffb06 MA |
6319 | static void |
6320 | zfs_allow_log_destroy(void *arg) | |
6321 | { | |
6322 | char *poolname = arg; | |
9f3d1407 | 6323 | |
6324 | if (poolname != NULL) | |
6325 | strfree(poolname); | |
6f1ffb06 | 6326 | } |
325f0235 BB |
6327 | |
6328 | #ifdef DEBUG | |
d1d7e268 | 6329 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 6330 | #else |
d1d7e268 | 6331 | #define ZFS_DEBUG_STR "" |
325f0235 | 6332 | #endif |
34dc7c2f | 6333 | |
b4f3666a | 6334 | static int __init |
34dc7c2f BB |
6335 | _init(void) |
6336 | { | |
6337 | int error; | |
6338 | ||
3d8d245f | 6339 | error = -vn_set_pwd("/"); |
b4f3666a BB |
6340 | if (error) { |
6341 | printk(KERN_NOTICE | |
6342 | "ZFS: Warning unable to set pwd to '/': %d\n", error); | |
6343 | return (error); | |
6344 | } | |
6345 | ||
a0bd735a BP |
6346 | if ((error = -zvol_init()) != 0) |
6347 | return (error); | |
6348 | ||
34dc7c2f BB |
6349 | spa_init(FREAD | FWRITE); |
6350 | zfs_init(); | |
34dc7c2f | 6351 | |
6f1ffb06 MA |
6352 | zfs_ioctl_init(); |
6353 | ||
325f0235 | 6354 | if ((error = zfs_attach()) != 0) |
a0bd735a | 6355 | goto out; |
34dc7c2f | 6356 | |
d5446cfc | 6357 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
6358 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
6359 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 6360 | |
4b5d425f | 6361 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
6362 | "ZFS pool version %s, ZFS filesystem version %s\n", |
6363 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
6364 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
6365 | #ifndef CONFIG_FS_POSIX_ACL |
6366 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
6367 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
6368 | |
6369 | return (0); | |
325f0235 | 6370 | |
a0bd735a | 6371 | out: |
325f0235 BB |
6372 | zfs_fini(); |
6373 | spa_fini(); | |
a0bd735a | 6374 | (void) zvol_fini(); |
4b5d425f | 6375 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
6376 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
6377 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
6378 | |
6379 | return (error); | |
34dc7c2f BB |
6380 | } |
6381 | ||
b4f3666a | 6382 | static void __exit |
34dc7c2f BB |
6383 | _fini(void) |
6384 | { | |
325f0235 | 6385 | zfs_detach(); |
34dc7c2f BB |
6386 | zfs_fini(); |
6387 | spa_fini(); | |
a0bd735a | 6388 | zvol_fini(); |
46e18b3f | 6389 | |
d5446cfc | 6390 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 6391 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 6392 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 6393 | |
4b5d425f | 6394 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 6395 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 6396 | } |
325f0235 BB |
6397 | |
6398 | #ifdef HAVE_SPL | |
b4f3666a BB |
6399 | module_init(_init); |
6400 | module_exit(_fini); | |
325f0235 BB |
6401 | |
6402 | MODULE_DESCRIPTION("ZFS"); | |
6403 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
6404 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 6405 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
325f0235 | 6406 | #endif /* HAVE_SPL */ |