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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 | 187 | #include <sys/zfeature.h> |
3c67d83a | 188 | #include <sys/zio_checksum.h> |
9759c60f | 189 | |
325f0235 | 190 | #include <linux/miscdevice.h> |
f74b821a | 191 | #include <linux/slab.h> |
34dc7c2f BB |
192 | |
193 | #include "zfs_namecheck.h" | |
194 | #include "zfs_prop.h" | |
195 | #include "zfs_deleg.h" | |
428870ff | 196 | #include "zfs_comutil.h" |
34dc7c2f | 197 | |
f74b821a BB |
198 | /* |
199 | * Limit maximum nvlist size. We don't want users passing in insane values | |
200 | * for zc->zc_nvlist_src_size, since we will need to allocate that much memory. | |
201 | */ | |
202 | #define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE | |
203 | ||
325f0235 | 204 | kmutex_t zfsdev_state_lock; |
3937ab20 | 205 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
206 | |
207 | extern void zfs_init(void); | |
208 | extern void zfs_fini(void); | |
209 | ||
6f1ffb06 MA |
210 | uint_t zfs_fsyncer_key; |
211 | extern uint_t rrw_tsd_key; | |
212 | static uint_t zfs_allow_log_key; | |
213 | ||
214 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
215 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
216 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 217 | |
9babb374 BB |
218 | typedef enum { |
219 | NO_NAME, | |
220 | POOL_NAME, | |
221 | DATASET_NAME | |
222 | } zfs_ioc_namecheck_t; | |
223 | ||
572e2857 BB |
224 | typedef enum { |
225 | POOL_CHECK_NONE = 1 << 0, | |
226 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 227 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
228 | } zfs_ioc_poolcheck_t; |
229 | ||
34dc7c2f | 230 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 231 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
232 | zfs_ioc_func_t *zvec_func; |
233 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 234 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 235 | boolean_t zvec_allow_log; |
572e2857 | 236 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
237 | boolean_t zvec_smush_outnvlist; |
238 | const char *zvec_name; | |
34dc7c2f BB |
239 | } zfs_ioc_vec_t; |
240 | ||
9babb374 BB |
241 | /* This array is indexed by zfs_userquota_prop_t */ |
242 | static const char *userquota_perms[] = { | |
243 | ZFS_DELEG_PERM_USERUSED, | |
244 | ZFS_DELEG_PERM_USERQUOTA, | |
245 | ZFS_DELEG_PERM_GROUPUSED, | |
246 | ZFS_DELEG_PERM_GROUPQUOTA, | |
1de321e6 JX |
247 | ZFS_DELEG_PERM_USEROBJUSED, |
248 | ZFS_DELEG_PERM_USEROBJQUOTA, | |
249 | ZFS_DELEG_PERM_GROUPOBJUSED, | |
250 | ZFS_DELEG_PERM_GROUPOBJQUOTA, | |
9babb374 BB |
251 | }; |
252 | ||
253 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
1de321e6 | 254 | static int zfs_ioc_userobjspace_upgrade(zfs_cmd_t *zc); |
428870ff BB |
255 | static int zfs_check_settable(const char *name, nvpair_t *property, |
256 | cred_t *cr); | |
257 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
258 | nvlist_t **errors); | |
b128c09f BB |
259 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
260 | boolean_t *); | |
6f1ffb06 MA |
261 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
262 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 263 | |
34dc7c2f BB |
264 | static void |
265 | history_str_free(char *buf) | |
266 | { | |
267 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
268 | } | |
269 | ||
270 | static char * | |
271 | history_str_get(zfs_cmd_t *zc) | |
272 | { | |
273 | char *buf; | |
274 | ||
b8864a23 | 275 | if (zc->zc_history == 0) |
34dc7c2f BB |
276 | return (NULL); |
277 | ||
efcd79a8 | 278 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); |
34dc7c2f BB |
279 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
280 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
281 | history_str_free(buf); | |
282 | return (NULL); | |
283 | } | |
284 | ||
285 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
286 | ||
287 | return (buf); | |
288 | } | |
289 | ||
290 | /* | |
b128c09f BB |
291 | * Check to see if the named dataset is currently defined as bootable |
292 | */ | |
293 | static boolean_t | |
294 | zfs_is_bootfs(const char *name) | |
295 | { | |
428870ff | 296 | objset_t *os; |
b128c09f | 297 | |
428870ff BB |
298 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
299 | boolean_t ret; | |
300 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
301 | dmu_objset_rele(os, FTAG); | |
302 | return (ret); | |
b128c09f | 303 | } |
428870ff | 304 | return (B_FALSE); |
b128c09f BB |
305 | } |
306 | ||
307 | /* | |
d3cc8b15 | 308 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
309 | */ |
310 | static int | |
b128c09f | 311 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 312 | { |
34dc7c2f BB |
313 | spa_t *spa; |
314 | ||
315 | if (spa_open(name, &spa, FTAG) == 0) { | |
316 | if (spa_version(spa) < version) { | |
317 | spa_close(spa, FTAG); | |
318 | return (1); | |
319 | } | |
320 | spa_close(spa, FTAG); | |
321 | } | |
322 | return (0); | |
323 | } | |
324 | ||
325 | /* | |
b128c09f | 326 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 327 | */ |
b128c09f BB |
328 | static boolean_t |
329 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
330 | { |
331 | objset_t *os; | |
b128c09f | 332 | boolean_t rc = B_TRUE; |
34dc7c2f | 333 | |
428870ff | 334 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 335 | uint64_t zplversion; |
34dc7c2f | 336 | |
428870ff BB |
337 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
338 | dmu_objset_rele(os, FTAG); | |
339 | return (B_TRUE); | |
340 | } | |
341 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
342 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
343 | rc = zplversion < version; | |
428870ff | 344 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
345 | } |
346 | return (rc); | |
347 | } | |
348 | ||
349 | static void | |
350 | zfs_log_history(zfs_cmd_t *zc) | |
351 | { | |
352 | spa_t *spa; | |
353 | char *buf; | |
354 | ||
355 | if ((buf = history_str_get(zc)) == NULL) | |
356 | return; | |
357 | ||
358 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
359 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 360 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
361 | spa_close(spa, FTAG); |
362 | } | |
363 | history_str_free(buf); | |
364 | } | |
365 | ||
366 | /* | |
367 | * Policy for top-level read operations (list pools). Requires no privileges, | |
368 | * and can be used in the local zone, as there is no associated dataset. | |
369 | */ | |
370 | /* ARGSUSED */ | |
371 | static int | |
6f1ffb06 | 372 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
373 | { |
374 | return (0); | |
375 | } | |
376 | ||
377 | /* | |
378 | * Policy for dataset read operations (list children, get statistics). Requires | |
379 | * no privileges, but must be visible in the local zone. | |
380 | */ | |
381 | /* ARGSUSED */ | |
382 | static int | |
6f1ffb06 | 383 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
384 | { |
385 | if (INGLOBALZONE(curproc) || | |
386 | zone_dataset_visible(zc->zc_name, NULL)) | |
387 | return (0); | |
388 | ||
2e528b49 | 389 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
390 | } |
391 | ||
392 | static int | |
572e2857 | 393 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 394 | { |
34dc7c2f BB |
395 | int writable = 1; |
396 | ||
397 | /* | |
398 | * The dataset must be visible by this zone -- check this first | |
399 | * so they don't see EPERM on something they shouldn't know about. | |
400 | */ | |
401 | if (!INGLOBALZONE(curproc) && | |
402 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 403 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 404 | |
34dc7c2f BB |
405 | if (INGLOBALZONE(curproc)) { |
406 | /* | |
407 | * If the fs is zoned, only root can access it from the | |
408 | * global zone. | |
409 | */ | |
410 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 411 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
412 | } else { |
413 | /* | |
414 | * If we are in a local zone, the 'zoned' property must be set. | |
415 | */ | |
416 | if (!zoned) | |
2e528b49 | 417 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
418 | |
419 | /* must be writable by this zone */ | |
420 | if (!writable) | |
2e528b49 | 421 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
422 | } |
423 | return (0); | |
424 | } | |
425 | ||
572e2857 BB |
426 | static int |
427 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
428 | { | |
429 | uint64_t zoned; | |
430 | ||
431 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 432 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
433 | |
434 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
435 | } | |
436 | ||
437 | static int | |
438 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
439 | { | |
440 | uint64_t zoned; | |
441 | ||
13fe0198 | 442 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 443 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
444 | |
445 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
446 | } | |
447 | ||
6f1ffb06 | 448 | static int |
13fe0198 MA |
449 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
450 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
451 | { |
452 | int error; | |
453 | ||
330d06f9 | 454 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
455 | if (error == 0) { |
456 | error = secpolicy_zfs(cr); | |
13fe0198 | 457 | if (error != 0) |
6f1ffb06 | 458 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
459 | } |
460 | return (error); | |
461 | } | |
462 | ||
6f1ffb06 | 463 | static int |
13fe0198 | 464 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
465 | { |
466 | int error; | |
13fe0198 MA |
467 | dsl_dataset_t *ds; |
468 | dsl_pool_t *dp; | |
572e2857 | 469 | |
e88551d5 GM |
470 | /* |
471 | * First do a quick check for root in the global zone, which | |
472 | * is allowed to do all write_perms. This ensures that zfs_ioc_* | |
473 | * will get to handle nonexistent datasets. | |
474 | */ | |
475 | if (INGLOBALZONE(curproc) && secpolicy_zfs(cr) == 0) | |
476 | return (0); | |
477 | ||
13fe0198 MA |
478 | error = dsl_pool_hold(name, FTAG, &dp); |
479 | if (error != 0) | |
480 | return (error); | |
481 | ||
482 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
483 | if (error != 0) { | |
484 | dsl_pool_rele(dp, FTAG); | |
485 | return (error); | |
572e2857 | 486 | } |
13fe0198 MA |
487 | |
488 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
489 | ||
490 | dsl_dataset_rele(ds, FTAG); | |
491 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
492 | return (error); |
493 | } | |
494 | ||
428870ff BB |
495 | /* |
496 | * Policy for setting the security label property. | |
497 | * | |
498 | * Returns 0 for success, non-zero for access and other errors. | |
499 | */ | |
34dc7c2f | 500 | static int |
428870ff | 501 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 502 | { |
d2c15e84 | 503 | #ifdef HAVE_MLSLABEL |
428870ff BB |
504 | char ds_hexsl[MAXNAMELEN]; |
505 | bslabel_t ds_sl, new_sl; | |
506 | boolean_t new_default = FALSE; | |
507 | uint64_t zoned; | |
508 | int needed_priv = -1; | |
509 | int error; | |
510 | ||
511 | /* First get the existing dataset label. */ | |
512 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
513 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 514 | if (error != 0) |
2e528b49 | 515 | return (SET_ERROR(EPERM)); |
428870ff BB |
516 | |
517 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
518 | new_default = TRUE; | |
519 | ||
520 | /* The label must be translatable */ | |
521 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 522 | return (SET_ERROR(EINVAL)); |
428870ff BB |
523 | |
524 | /* | |
525 | * In a non-global zone, disallow attempts to set a label that | |
526 | * doesn't match that of the zone; otherwise no other checks | |
527 | * are needed. | |
528 | */ | |
529 | if (!INGLOBALZONE(curproc)) { | |
530 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 531 | return (SET_ERROR(EPERM)); |
428870ff BB |
532 | return (0); |
533 | } | |
534 | ||
535 | /* | |
536 | * For global-zone datasets (i.e., those whose zoned property is | |
537 | * "off", verify that the specified new label is valid for the | |
538 | * global zone. | |
539 | */ | |
540 | if (dsl_prop_get_integer(name, | |
541 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 542 | return (SET_ERROR(EPERM)); |
428870ff BB |
543 | if (!zoned) { |
544 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 545 | return (SET_ERROR(EPERM)); |
428870ff BB |
546 | } |
547 | ||
548 | /* | |
549 | * If the existing dataset label is nondefault, check if the | |
550 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 551 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
552 | * mounted (or isn't a dataset, doesn't exist, ...). |
553 | */ | |
554 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
555 | objset_t *os; | |
556 | static char *setsl_tag = "setsl_tag"; | |
557 | ||
558 | /* | |
559 | * Try to own the dataset; abort if there is any error, | |
560 | * (e.g., already mounted, in use, or other error). | |
561 | */ | |
562 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
563 | setsl_tag, &os); | |
13fe0198 | 564 | if (error != 0) |
2e528b49 | 565 | return (SET_ERROR(EPERM)); |
428870ff BB |
566 | |
567 | dmu_objset_disown(os, setsl_tag); | |
568 | ||
569 | if (new_default) { | |
570 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
571 | goto out_check; | |
572 | } | |
573 | ||
574 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 575 | return (SET_ERROR(EPERM)); |
428870ff BB |
576 | |
577 | if (blstrictdom(&ds_sl, &new_sl)) | |
578 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
579 | else if (blstrictdom(&new_sl, &ds_sl)) | |
580 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
581 | } else { | |
582 | /* dataset currently has a default label */ | |
583 | if (!new_default) | |
584 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
585 | } | |
586 | ||
587 | out_check: | |
588 | if (needed_priv != -1) | |
589 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
590 | return (0); | |
d2c15e84 | 591 | #else |
d1d7e268 | 592 | return (ENOTSUP); |
d2c15e84 | 593 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
594 | } |
595 | ||
596 | static int | |
597 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
598 | cred_t *cr) | |
599 | { | |
600 | char *strval; | |
601 | ||
34dc7c2f BB |
602 | /* |
603 | * Check permissions for special properties. | |
604 | */ | |
605 | switch (prop) { | |
e75c13c3 BB |
606 | default: |
607 | break; | |
34dc7c2f BB |
608 | case ZFS_PROP_ZONED: |
609 | /* | |
610 | * Disallow setting of 'zoned' from within a local zone. | |
611 | */ | |
612 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 613 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
614 | break; |
615 | ||
616 | case ZFS_PROP_QUOTA: | |
788eb90c JJ |
617 | case ZFS_PROP_FILESYSTEM_LIMIT: |
618 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
34dc7c2f BB |
619 | if (!INGLOBALZONE(curproc)) { |
620 | uint64_t zoned; | |
eca7b760 | 621 | char setpoint[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
622 | /* |
623 | * Unprivileged users are allowed to modify the | |
788eb90c | 624 | * limit on things *under* (ie. contained by) |
34dc7c2f BB |
625 | * the thing they own. |
626 | */ | |
428870ff | 627 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 628 | setpoint)) |
2e528b49 | 629 | return (SET_ERROR(EPERM)); |
428870ff | 630 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 631 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
632 | } |
633 | break; | |
428870ff BB |
634 | |
635 | case ZFS_PROP_MLSLABEL: | |
636 | if (!is_system_labeled()) | |
2e528b49 | 637 | return (SET_ERROR(EPERM)); |
428870ff BB |
638 | |
639 | if (nvpair_value_string(propval, &strval) == 0) { | |
640 | int err; | |
641 | ||
642 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
643 | if (err != 0) | |
644 | return (err); | |
645 | } | |
646 | break; | |
34dc7c2f BB |
647 | } |
648 | ||
428870ff | 649 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
650 | } |
651 | ||
6f1ffb06 MA |
652 | /* ARGSUSED */ |
653 | static int | |
654 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
655 | { |
656 | int error; | |
657 | ||
658 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 659 | if (error != 0) |
34dc7c2f BB |
660 | return (error); |
661 | ||
662 | /* | |
663 | * permission to set permissions will be evaluated later in | |
664 | * dsl_deleg_can_allow() | |
665 | */ | |
666 | return (0); | |
667 | } | |
668 | ||
6f1ffb06 MA |
669 | /* ARGSUSED */ |
670 | static int | |
671 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 672 | { |
428870ff BB |
673 | return (zfs_secpolicy_write_perms(zc->zc_name, |
674 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
675 | } |
676 | ||
6f1ffb06 MA |
677 | /* ARGSUSED */ |
678 | static int | |
679 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 680 | { |
572e2857 BB |
681 | dsl_pool_t *dp; |
682 | dsl_dataset_t *ds; | |
683 | char *cp; | |
684 | int error; | |
685 | ||
686 | /* | |
687 | * Generate the current snapshot name from the given objsetid, then | |
688 | * use that name for the secpolicy/zone checks. | |
689 | */ | |
690 | cp = strchr(zc->zc_name, '@'); | |
691 | if (cp == NULL) | |
2e528b49 | 692 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
693 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
694 | if (error != 0) | |
572e2857 BB |
695 | return (error); |
696 | ||
572e2857 | 697 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
698 | if (error != 0) { |
699 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 700 | return (error); |
13fe0198 | 701 | } |
572e2857 BB |
702 | |
703 | dsl_dataset_name(ds, zc->zc_name); | |
704 | ||
705 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
706 | ZFS_DELEG_PERM_SEND, cr); | |
707 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 708 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
709 | |
710 | return (error); | |
34dc7c2f BB |
711 | } |
712 | ||
6f1ffb06 MA |
713 | /* ARGSUSED */ |
714 | static int | |
715 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
716 | { | |
717 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
718 | ZFS_DELEG_PERM_SEND, cr)); | |
719 | } | |
720 | ||
3c9609b3 | 721 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 722 | /* ARGSUSED */ |
9babb374 | 723 | static int |
6f1ffb06 | 724 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
725 | { |
726 | vnode_t *vp; | |
727 | int error; | |
728 | ||
729 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
730 | NO_FOLLOW, NULL, &vp)) != 0) | |
731 | return (error); | |
732 | ||
733 | /* Now make sure mntpnt and dataset are ZFS */ | |
734 | ||
735 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
736 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
737 | zc->zc_name) != 0)) { | |
738 | VN_RELE(vp); | |
2e528b49 | 739 | return (SET_ERROR(EPERM)); |
9babb374 BB |
740 | } |
741 | ||
742 | VN_RELE(vp); | |
743 | return (dsl_deleg_access(zc->zc_name, | |
744 | ZFS_DELEG_PERM_SHARE, cr)); | |
745 | } | |
3c9609b3 | 746 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 747 | |
34dc7c2f | 748 | int |
6f1ffb06 | 749 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 750 | { |
3c9609b3 | 751 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 752 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 753 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
754 | |
755 | if (secpolicy_nfs(cr) == 0) { | |
756 | return (0); | |
757 | } else { | |
6f1ffb06 | 758 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 759 | } |
325f0235 | 760 | #else |
2e528b49 | 761 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 762 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 763 | } |
34dc7c2f | 764 | |
9babb374 | 765 | int |
6f1ffb06 | 766 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 767 | { |
3c9609b3 | 768 | #ifdef HAVE_SMB_SHARE |
9babb374 | 769 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 770 | return (SET_ERROR(EPERM)); |
34dc7c2f | 771 | |
9babb374 BB |
772 | if (secpolicy_smb(cr) == 0) { |
773 | return (0); | |
774 | } else { | |
6f1ffb06 | 775 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 776 | } |
325f0235 | 777 | #else |
2e528b49 | 778 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 779 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
780 | } |
781 | ||
782 | static int | |
783 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
784 | { | |
785 | char *cp; | |
786 | ||
787 | /* | |
788 | * Remove the @bla or /bla from the end of the name to get the parent. | |
789 | */ | |
790 | (void) strncpy(parent, datasetname, parentsize); | |
791 | cp = strrchr(parent, '@'); | |
792 | if (cp != NULL) { | |
793 | cp[0] = '\0'; | |
794 | } else { | |
795 | cp = strrchr(parent, '/'); | |
796 | if (cp == NULL) | |
2e528b49 | 797 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
798 | cp[0] = '\0'; |
799 | } | |
800 | ||
801 | return (0); | |
802 | } | |
803 | ||
804 | int | |
805 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
806 | { | |
807 | int error; | |
808 | ||
809 | if ((error = zfs_secpolicy_write_perms(name, | |
810 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
811 | return (error); | |
812 | ||
813 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
814 | } | |
815 | ||
6f1ffb06 | 816 | /* ARGSUSED */ |
34dc7c2f | 817 | static int |
6f1ffb06 | 818 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
819 | { |
820 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
821 | } | |
822 | ||
823 | /* | |
428870ff | 824 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 825 | * descendant mount and destroy permissions. |
34dc7c2f | 826 | */ |
6f1ffb06 | 827 | /* ARGSUSED */ |
34dc7c2f | 828 | static int |
6f1ffb06 | 829 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 830 | { |
6f1ffb06 MA |
831 | nvlist_t *snaps; |
832 | nvpair_t *pair, *nextpair; | |
833 | int error = 0; | |
428870ff | 834 | |
6f1ffb06 | 835 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 836 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
837 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
838 | pair = nextpair) { | |
6f1ffb06 | 839 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
840 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
841 | if (error == ENOENT) { | |
6f1ffb06 MA |
842 | /* |
843 | * Ignore any snapshots that don't exist (we consider | |
844 | * them "already destroyed"). Remove the name from the | |
845 | * nvl here in case the snapshot is created between | |
846 | * now and when we try to destroy it (in which case | |
847 | * we don't want to destroy it since we haven't | |
848 | * checked for permission). | |
849 | */ | |
850 | fnvlist_remove_nvpair(snaps, pair); | |
851 | error = 0; | |
6f1ffb06 | 852 | } |
6f1ffb06 MA |
853 | if (error != 0) |
854 | break; | |
855 | } | |
428870ff | 856 | |
428870ff | 857 | return (error); |
34dc7c2f BB |
858 | } |
859 | ||
860 | int | |
861 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
862 | { | |
eca7b760 | 863 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
864 | int error; |
865 | ||
866 | if ((error = zfs_secpolicy_write_perms(from, | |
867 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
868 | return (error); | |
869 | ||
870 | if ((error = zfs_secpolicy_write_perms(from, | |
871 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
872 | return (error); | |
873 | ||
874 | if ((error = zfs_get_parent(to, parentname, | |
875 | sizeof (parentname))) != 0) | |
876 | return (error); | |
877 | ||
878 | if ((error = zfs_secpolicy_write_perms(parentname, | |
879 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
880 | return (error); | |
881 | ||
882 | if ((error = zfs_secpolicy_write_perms(parentname, | |
883 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
884 | return (error); | |
885 | ||
886 | return (error); | |
887 | } | |
888 | ||
6f1ffb06 | 889 | /* ARGSUSED */ |
34dc7c2f | 890 | static int |
6f1ffb06 | 891 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
892 | { |
893 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
894 | } | |
895 | ||
6f1ffb06 | 896 | /* ARGSUSED */ |
34dc7c2f | 897 | static int |
6f1ffb06 | 898 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 899 | { |
13fe0198 MA |
900 | dsl_pool_t *dp; |
901 | dsl_dataset_t *clone; | |
34dc7c2f BB |
902 | int error; |
903 | ||
904 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
905 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
906 | if (error != 0) |
907 | return (error); | |
908 | ||
909 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
910 | if (error != 0) | |
34dc7c2f BB |
911 | return (error); |
912 | ||
13fe0198 | 913 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
914 | |
915 | if (error == 0) { | |
eca7b760 | 916 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 | 917 | dsl_dataset_t *origin = NULL; |
34dc7c2f | 918 | dsl_dir_t *dd; |
13fe0198 | 919 | dd = clone->ds_dir; |
34dc7c2f | 920 | |
b128c09f | 921 | error = dsl_dataset_hold_obj(dd->dd_pool, |
d683ddbb | 922 | dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin); |
13fe0198 MA |
923 | if (error != 0) { |
924 | dsl_dataset_rele(clone, FTAG); | |
925 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
926 | return (error); |
927 | } | |
928 | ||
13fe0198 | 929 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
930 | ZFS_DELEG_PERM_MOUNT, cr); |
931 | ||
13fe0198 MA |
932 | dsl_dataset_name(origin, parentname); |
933 | if (error == 0) { | |
934 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 935 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
936 | } |
937 | dsl_dataset_rele(clone, FTAG); | |
938 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 939 | } |
13fe0198 | 940 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
941 | return (error); |
942 | } | |
943 | ||
6f1ffb06 | 944 | /* ARGSUSED */ |
34dc7c2f | 945 | static int |
6f1ffb06 | 946 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
947 | { |
948 | int error; | |
949 | ||
950 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
951 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
952 | return (error); | |
953 | ||
954 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
955 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
956 | return (error); | |
957 | ||
958 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
959 | ZFS_DELEG_PERM_CREATE, cr)); | |
960 | } | |
961 | ||
43e52edd BB |
962 | /* ARGSUSED */ |
963 | static int | |
964 | zfs_secpolicy_recv_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
965 | { | |
966 | return (zfs_secpolicy_recv(zc, innvl, cr)); | |
967 | } | |
968 | ||
34dc7c2f BB |
969 | int |
970 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
971 | { | |
428870ff BB |
972 | return (zfs_secpolicy_write_perms(name, |
973 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
974 | } |
975 | ||
6f1ffb06 MA |
976 | /* |
977 | * Check for permission to create each snapshot in the nvlist. | |
978 | */ | |
979 | /* ARGSUSED */ | |
34dc7c2f | 980 | static int |
6f1ffb06 | 981 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 982 | { |
6f1ffb06 MA |
983 | nvlist_t *snaps; |
984 | int error = 0; | |
985 | nvpair_t *pair; | |
986 | ||
987 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 988 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
989 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
990 | pair = nvlist_next_nvpair(snaps, pair)) { | |
991 | char *name = nvpair_name(pair); | |
992 | char *atp = strchr(name, '@'); | |
34dc7c2f | 993 | |
6f1ffb06 | 994 | if (atp == NULL) { |
2e528b49 | 995 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
996 | break; |
997 | } | |
998 | *atp = '\0'; | |
999 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
1000 | *atp = '@'; | |
1001 | if (error != 0) | |
1002 | break; | |
1003 | } | |
1004 | return (error); | |
1005 | } | |
1006 | ||
da536844 MA |
1007 | /* |
1008 | * Check for permission to create each snapshot in the nvlist. | |
1009 | */ | |
1010 | /* ARGSUSED */ | |
1011 | static int | |
1012 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1013 | { | |
1014 | int error = 0; | |
1015 | nvpair_t *pair; | |
1016 | ||
1017 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
1018 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
1019 | char *name = nvpair_name(pair); | |
1020 | char *hashp = strchr(name, '#'); | |
1021 | ||
1022 | if (hashp == NULL) { | |
1023 | error = SET_ERROR(EINVAL); | |
1024 | break; | |
1025 | } | |
1026 | *hashp = '\0'; | |
1027 | error = zfs_secpolicy_write_perms(name, | |
1028 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
1029 | *hashp = '#'; | |
1030 | if (error != 0) | |
1031 | break; | |
1032 | } | |
1033 | return (error); | |
1034 | } | |
1035 | ||
1036 | /* ARGSUSED */ | |
1037 | static int | |
1038 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1039 | { | |
1040 | nvpair_t *pair, *nextpair; | |
1041 | int error = 0; | |
1042 | ||
1043 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1044 | pair = nextpair) { | |
1045 | char *name = nvpair_name(pair); | |
1046 | char *hashp = strchr(name, '#'); | |
1047 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1048 | ||
1049 | if (hashp == NULL) { | |
1050 | error = SET_ERROR(EINVAL); | |
1051 | break; | |
1052 | } | |
1053 | ||
1054 | *hashp = '\0'; | |
1055 | error = zfs_secpolicy_write_perms(name, | |
1056 | ZFS_DELEG_PERM_DESTROY, cr); | |
1057 | *hashp = '#'; | |
1058 | if (error == ENOENT) { | |
1059 | /* | |
1060 | * Ignore any filesystems that don't exist (we consider | |
1061 | * their bookmarks "already destroyed"). Remove | |
1062 | * the name from the nvl here in case the filesystem | |
1063 | * is created between now and when we try to destroy | |
1064 | * the bookmark (in which case we don't want to | |
1065 | * destroy it since we haven't checked for permission). | |
1066 | */ | |
1067 | fnvlist_remove_nvpair(innvl, pair); | |
1068 | error = 0; | |
1069 | } | |
1070 | if (error != 0) | |
1071 | break; | |
1072 | } | |
1073 | ||
1074 | return (error); | |
1075 | } | |
1076 | ||
6f1ffb06 MA |
1077 | /* ARGSUSED */ |
1078 | static int | |
1079 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1080 | { | |
1081 | /* | |
1082 | * Even root must have a proper TSD so that we know what pool | |
1083 | * to log to. | |
1084 | */ | |
1085 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1086 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1087 | return (0); |
34dc7c2f BB |
1088 | } |
1089 | ||
1090 | static int | |
6f1ffb06 | 1091 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1092 | { |
eca7b760 | 1093 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff | 1094 | int error; |
6f1ffb06 | 1095 | char *origin; |
34dc7c2f BB |
1096 | |
1097 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1098 | sizeof (parentname))) != 0) | |
1099 | return (error); | |
1100 | ||
6f1ffb06 MA |
1101 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1102 | (error = zfs_secpolicy_write_perms(origin, | |
1103 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1104 | return (error); | |
34dc7c2f BB |
1105 | |
1106 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1107 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1108 | return (error); | |
1109 | ||
6f1ffb06 MA |
1110 | return (zfs_secpolicy_write_perms(parentname, |
1111 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1112 | } |
1113 | ||
34dc7c2f BB |
1114 | /* |
1115 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1116 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1117 | */ | |
1118 | /* ARGSUSED */ | |
1119 | static int | |
6f1ffb06 | 1120 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1121 | { |
1122 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1123 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1124 | |
1125 | return (0); | |
1126 | } | |
1127 | ||
572e2857 BB |
1128 | /* |
1129 | * Policy for object to name lookups. | |
1130 | */ | |
1131 | /* ARGSUSED */ | |
1132 | static int | |
6f1ffb06 | 1133 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1134 | { |
1135 | int error; | |
1136 | ||
1137 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1138 | return (0); | |
1139 | ||
1140 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1141 | return (error); | |
1142 | } | |
1143 | ||
34dc7c2f BB |
1144 | /* |
1145 | * Policy for fault injection. Requires all privileges. | |
1146 | */ | |
1147 | /* ARGSUSED */ | |
1148 | static int | |
6f1ffb06 | 1149 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1150 | { |
1151 | return (secpolicy_zinject(cr)); | |
1152 | } | |
1153 | ||
6f1ffb06 | 1154 | /* ARGSUSED */ |
34dc7c2f | 1155 | static int |
6f1ffb06 | 1156 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1157 | { |
1158 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1159 | ||
1160 | if (prop == ZPROP_INVAL) { | |
1161 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1162 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1163 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1164 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1165 | } else { | |
428870ff BB |
1166 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1167 | NULL, cr)); | |
34dc7c2f BB |
1168 | } |
1169 | } | |
1170 | ||
9babb374 | 1171 | static int |
6f1ffb06 | 1172 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1173 | { |
6f1ffb06 | 1174 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1175 | if (err) |
1176 | return (err); | |
1177 | ||
1178 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1179 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1180 | |
1181 | if (zc->zc_value[0] == 0) { | |
1182 | /* | |
1183 | * They are asking about a posix uid/gid. If it's | |
1184 | * themself, allow it. | |
1185 | */ | |
1186 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1de321e6 JX |
1187 | zc->zc_objset_type == ZFS_PROP_USERQUOTA || |
1188 | zc->zc_objset_type == ZFS_PROP_USEROBJUSED || | |
1189 | zc->zc_objset_type == ZFS_PROP_USEROBJQUOTA) { | |
9babb374 BB |
1190 | if (zc->zc_guid == crgetuid(cr)) |
1191 | return (0); | |
1192 | } else { | |
1193 | if (groupmember(zc->zc_guid, cr)) | |
1194 | return (0); | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1199 | userquota_perms[zc->zc_objset_type], cr)); | |
1200 | } | |
1201 | ||
1202 | static int | |
6f1ffb06 | 1203 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1204 | { |
6f1ffb06 | 1205 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1206 | if (err) |
1207 | return (err); | |
1208 | ||
1209 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1210 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1211 | |
1212 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1213 | userquota_perms[zc->zc_objset_type], cr)); | |
1214 | } | |
1215 | ||
6f1ffb06 | 1216 | /* ARGSUSED */ |
9babb374 | 1217 | static int |
6f1ffb06 | 1218 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1219 | { |
428870ff BB |
1220 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1221 | NULL, cr)); | |
9babb374 BB |
1222 | } |
1223 | ||
6f1ffb06 | 1224 | /* ARGSUSED */ |
45d1cae3 | 1225 | static int |
6f1ffb06 | 1226 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1227 | { |
13fe0198 MA |
1228 | nvpair_t *pair; |
1229 | nvlist_t *holds; | |
1230 | int error; | |
1231 | ||
1232 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1233 | if (error != 0) | |
2e528b49 | 1234 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
1235 | |
1236 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1237 | pair = nvlist_next_nvpair(holds, pair)) { | |
eca7b760 | 1238 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1239 | error = dmu_fsname(nvpair_name(pair), fsname); |
1240 | if (error != 0) | |
1241 | return (error); | |
1242 | error = zfs_secpolicy_write_perms(fsname, | |
1243 | ZFS_DELEG_PERM_HOLD, cr); | |
1244 | if (error != 0) | |
1245 | return (error); | |
1246 | } | |
1247 | return (0); | |
45d1cae3 BB |
1248 | } |
1249 | ||
6f1ffb06 | 1250 | /* ARGSUSED */ |
45d1cae3 | 1251 | static int |
6f1ffb06 | 1252 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1253 | { |
13fe0198 MA |
1254 | nvpair_t *pair; |
1255 | int error; | |
1256 | ||
1257 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1258 | pair = nvlist_next_nvpair(innvl, pair)) { | |
eca7b760 | 1259 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1260 | error = dmu_fsname(nvpair_name(pair), fsname); |
1261 | if (error != 0) | |
1262 | return (error); | |
1263 | error = zfs_secpolicy_write_perms(fsname, | |
1264 | ZFS_DELEG_PERM_RELEASE, cr); | |
1265 | if (error != 0) | |
1266 | return (error); | |
1267 | } | |
1268 | return (0); | |
45d1cae3 BB |
1269 | } |
1270 | ||
572e2857 BB |
1271 | /* |
1272 | * Policy for allowing temporary snapshots to be taken or released | |
1273 | */ | |
1274 | static int | |
6f1ffb06 | 1275 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1276 | { |
1277 | /* | |
1278 | * A temporary snapshot is the same as a snapshot, | |
1279 | * hold, destroy and release all rolled into one. | |
1280 | * Delegated diff alone is sufficient that we allow this. | |
1281 | */ | |
1282 | int error; | |
1283 | ||
1284 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1285 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1286 | return (0); | |
1287 | ||
6f1ffb06 | 1288 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1289 | if (error == 0) |
6f1ffb06 | 1290 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1291 | if (error == 0) |
6f1ffb06 | 1292 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1293 | if (error == 0) |
6f1ffb06 | 1294 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1295 | return (error); |
1296 | } | |
1297 | ||
34dc7c2f BB |
1298 | /* |
1299 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1300 | */ | |
1301 | static int | |
9babb374 | 1302 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1303 | { |
1304 | char *packed; | |
1305 | int error; | |
1306 | nvlist_t *list = NULL; | |
1307 | ||
1308 | /* | |
1309 | * Read in and unpack the user-supplied nvlist. | |
1310 | */ | |
1311 | if (size == 0) | |
2e528b49 | 1312 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1313 | |
77aef6f6 | 1314 | packed = vmem_alloc(size, KM_SLEEP); |
34dc7c2f | 1315 | |
9babb374 BB |
1316 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1317 | iflag)) != 0) { | |
77aef6f6 | 1318 | vmem_free(packed, size); |
0de7c552 | 1319 | return (SET_ERROR(EFAULT)); |
34dc7c2f BB |
1320 | } |
1321 | ||
1322 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
77aef6f6 | 1323 | vmem_free(packed, size); |
34dc7c2f BB |
1324 | return (error); |
1325 | } | |
1326 | ||
77aef6f6 | 1327 | vmem_free(packed, size); |
34dc7c2f BB |
1328 | |
1329 | *nvp = list; | |
1330 | return (0); | |
1331 | } | |
1332 | ||
6f1ffb06 MA |
1333 | /* |
1334 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1335 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1336 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1337 | * removed. | |
1338 | */ | |
428870ff | 1339 | static int |
6f1ffb06 | 1340 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1341 | { |
1342 | size_t size; | |
1343 | ||
6f1ffb06 | 1344 | size = fnvlist_size(errors); |
428870ff | 1345 | |
6f1ffb06 | 1346 | if (size > max) { |
428870ff BB |
1347 | nvpair_t *more_errors; |
1348 | int n = 0; | |
1349 | ||
6f1ffb06 | 1350 | if (max < 1024) |
2e528b49 | 1351 | return (SET_ERROR(ENOMEM)); |
428870ff | 1352 | |
6f1ffb06 MA |
1353 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1354 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1355 | |
1356 | do { | |
6f1ffb06 | 1357 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1358 | more_errors); |
6f1ffb06 | 1359 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1360 | n++; |
6f1ffb06 MA |
1361 | size = fnvlist_size(errors); |
1362 | } while (size > max); | |
428870ff | 1363 | |
6f1ffb06 MA |
1364 | fnvlist_remove_nvpair(errors, more_errors); |
1365 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1366 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1367 | } |
1368 | ||
1369 | return (0); | |
1370 | } | |
1371 | ||
34dc7c2f BB |
1372 | static int |
1373 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1374 | { | |
1375 | char *packed = NULL; | |
428870ff | 1376 | int error = 0; |
34dc7c2f | 1377 | size_t size; |
34dc7c2f | 1378 | |
6f1ffb06 | 1379 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1380 | |
1381 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1382 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1383 | } else { |
6f1ffb06 | 1384 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1385 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1386 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1387 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1388 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1389 | } |
1390 | ||
1391 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1392 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1393 | return (error); |
1394 | } | |
1395 | ||
9babb374 | 1396 | static int |
3558fd73 | 1397 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1398 | { |
1399 | objset_t *os; | |
1400 | int error; | |
1401 | ||
428870ff | 1402 | error = dmu_objset_hold(dsname, FTAG, &os); |
13fe0198 | 1403 | if (error != 0) |
9babb374 | 1404 | return (error); |
428870ff BB |
1405 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1406 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1407 | return (SET_ERROR(EINVAL)); |
428870ff | 1408 | } |
9babb374 | 1409 | |
428870ff | 1410 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1411 | *zsbp = dmu_objset_get_user(os); |
061460df CC |
1412 | /* bump s_active only when non-zero to prevent umount race */ |
1413 | if (*zsbp == NULL || (*zsbp)->z_sb == NULL || | |
1414 | !atomic_inc_not_zero(&((*zsbp)->z_sb->s_active))) { | |
2e528b49 | 1415 | error = SET_ERROR(ESRCH); |
9babb374 | 1416 | } |
428870ff BB |
1417 | mutex_exit(&os->os_user_ptr_lock); |
1418 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1419 | return (error); |
1420 | } | |
1421 | ||
1422 | /* | |
3558fd73 | 1423 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1424 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1425 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1426 | * which prevents all inode ops from running. | |
9babb374 BB |
1427 | */ |
1428 | static int | |
3558fd73 | 1429 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1430 | { |
1431 | int error = 0; | |
9babb374 | 1432 | |
3558fd73 | 1433 | if (get_zfs_sb(name, zsbp) != 0) |
0282c413 | 1434 | error = zfs_sb_create(name, NULL, zsbp); |
9babb374 | 1435 | if (error == 0) { |
e16b3fcc | 1436 | rrm_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1437 | RW_READER, tag); |
3558fd73 | 1438 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1439 | /* |
1440 | * XXX we could probably try again, since the unmounting | |
1441 | * thread should be just about to disassociate the | |
831baf06 | 1442 | * objset from the zsb. |
9babb374 | 1443 | */ |
e16b3fcc | 1444 | rrm_exit(&(*zsbp)->z_teardown_lock, tag); |
2e528b49 | 1445 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1446 | } |
1447 | } | |
1448 | return (error); | |
1449 | } | |
1450 | ||
1451 | static void | |
3558fd73 | 1452 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1453 | { |
e16b3fcc | 1454 | rrm_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1455 | |
2cf7f52b BB |
1456 | if (zsb->z_sb) { |
1457 | deactivate_super(zsb->z_sb); | |
9babb374 | 1458 | } else { |
3558fd73 BB |
1459 | dmu_objset_disown(zsb->z_os, zsb); |
1460 | zfs_sb_free(zsb); | |
9babb374 BB |
1461 | } |
1462 | } | |
1463 | ||
34dc7c2f BB |
1464 | static int |
1465 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1466 | { | |
1467 | int error; | |
1468 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1469 | nvlist_t *rootprops = NULL; |
1470 | nvlist_t *zplprops = NULL; | |
34dc7c2f | 1471 | |
c65aa5b2 BB |
1472 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1473 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1474 | return (error); |
1475 | ||
1476 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1477 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1478 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1479 | nvlist_free(config); |
1480 | return (error); | |
1481 | } | |
1482 | ||
b128c09f BB |
1483 | if (props) { |
1484 | nvlist_t *nvl = NULL; | |
1485 | uint64_t version = SPA_VERSION; | |
1486 | ||
1487 | (void) nvlist_lookup_uint64(props, | |
1488 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1489 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1490 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1491 | goto pool_props_bad; |
1492 | } | |
1493 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1494 | if (nvl) { | |
1495 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1496 | if (error != 0) { | |
1497 | nvlist_free(config); | |
1498 | nvlist_free(props); | |
1499 | return (error); | |
1500 | } | |
1501 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1502 | } | |
1503 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1504 | error = zfs_fill_zplprops_root(version, rootprops, | |
1505 | zplprops, NULL); | |
13fe0198 | 1506 | if (error != 0) |
b128c09f BB |
1507 | goto pool_props_bad; |
1508 | } | |
1509 | ||
6f1ffb06 | 1510 | error = spa_create(zc->zc_name, config, props, zplprops); |
b128c09f BB |
1511 | |
1512 | /* | |
1513 | * Set the remaining root properties | |
1514 | */ | |
428870ff BB |
1515 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1516 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1517 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1518 | |
b128c09f BB |
1519 | pool_props_bad: |
1520 | nvlist_free(rootprops); | |
1521 | nvlist_free(zplprops); | |
34dc7c2f | 1522 | nvlist_free(config); |
b128c09f | 1523 | nvlist_free(props); |
34dc7c2f BB |
1524 | |
1525 | return (error); | |
1526 | } | |
1527 | ||
1528 | static int | |
1529 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1530 | { | |
1531 | int error; | |
1532 | zfs_log_history(zc); | |
1533 | error = spa_destroy(zc->zc_name); | |
a0bd735a | 1534 | |
34dc7c2f BB |
1535 | return (error); |
1536 | } | |
1537 | ||
1538 | static int | |
1539 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1540 | { | |
34dc7c2f BB |
1541 | nvlist_t *config, *props = NULL; |
1542 | uint64_t guid; | |
428870ff | 1543 | int error; |
34dc7c2f BB |
1544 | |
1545 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1546 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1547 | return (error); |
1548 | ||
1549 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1550 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1551 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1552 | nvlist_free(config); |
1553 | return (error); | |
1554 | } | |
1555 | ||
1556 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1557 | guid != zc->zc_guid) | |
2e528b49 | 1558 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1559 | else |
572e2857 | 1560 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1561 | |
572e2857 BB |
1562 | if (zc->zc_nvlist_dst != 0) { |
1563 | int err; | |
1564 | ||
1565 | if ((err = put_nvlist(zc, config)) != 0) | |
1566 | error = err; | |
1567 | } | |
428870ff | 1568 | |
34dc7c2f | 1569 | nvlist_free(config); |
8a5fc748 | 1570 | nvlist_free(props); |
34dc7c2f BB |
1571 | |
1572 | return (error); | |
1573 | } | |
1574 | ||
1575 | static int | |
1576 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1577 | { | |
1578 | int error; | |
b128c09f | 1579 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1580 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1581 | |
34dc7c2f | 1582 | zfs_log_history(zc); |
fb5f0bc8 | 1583 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
a0bd735a | 1584 | |
34dc7c2f BB |
1585 | return (error); |
1586 | } | |
1587 | ||
1588 | static int | |
1589 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1590 | { | |
1591 | nvlist_t *configs; | |
1592 | int error; | |
1593 | ||
1594 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1595 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1596 | |
1597 | error = put_nvlist(zc, configs); | |
1598 | ||
1599 | nvlist_free(configs); | |
1600 | ||
1601 | return (error); | |
1602 | } | |
1603 | ||
9ae529ec CS |
1604 | /* |
1605 | * inputs: | |
1606 | * zc_name name of the pool | |
1607 | * | |
1608 | * outputs: | |
1609 | * zc_cookie real errno | |
1610 | * zc_nvlist_dst config nvlist | |
1611 | * zc_nvlist_dst_size size of config nvlist | |
1612 | */ | |
34dc7c2f BB |
1613 | static int |
1614 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1615 | { | |
1616 | nvlist_t *config; | |
1617 | int error; | |
1618 | int ret = 0; | |
1619 | ||
1620 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1621 | sizeof (zc->zc_value)); | |
1622 | ||
1623 | if (config != NULL) { | |
1624 | ret = put_nvlist(zc, config); | |
1625 | nvlist_free(config); | |
1626 | ||
1627 | /* | |
1628 | * The config may be present even if 'error' is non-zero. | |
1629 | * In this case we return success, and preserve the real errno | |
1630 | * in 'zc_cookie'. | |
1631 | */ | |
1632 | zc->zc_cookie = error; | |
1633 | } else { | |
1634 | ret = error; | |
1635 | } | |
1636 | ||
1637 | return (ret); | |
1638 | } | |
1639 | ||
1640 | /* | |
1641 | * Try to import the given pool, returning pool stats as appropriate so that | |
1642 | * user land knows which devices are available and overall pool health. | |
1643 | */ | |
1644 | static int | |
1645 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1646 | { | |
1647 | nvlist_t *tryconfig, *config; | |
1648 | int error; | |
1649 | ||
1650 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1651 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1652 | return (error); |
1653 | ||
1654 | config = spa_tryimport(tryconfig); | |
1655 | ||
1656 | nvlist_free(tryconfig); | |
1657 | ||
1658 | if (config == NULL) | |
2e528b49 | 1659 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1660 | |
1661 | error = put_nvlist(zc, config); | |
1662 | nvlist_free(config); | |
1663 | ||
1664 | return (error); | |
1665 | } | |
1666 | ||
428870ff BB |
1667 | /* |
1668 | * inputs: | |
1669 | * zc_name name of the pool | |
1670 | * zc_cookie scan func (pool_scan_func_t) | |
1671 | */ | |
34dc7c2f | 1672 | static int |
428870ff | 1673 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1674 | { |
1675 | spa_t *spa; | |
1676 | int error; | |
1677 | ||
1678 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1679 | return (error); | |
1680 | ||
428870ff BB |
1681 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1682 | error = spa_scan_stop(spa); | |
1683 | else | |
1684 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1685 | |
1686 | spa_close(spa, FTAG); | |
1687 | ||
1688 | return (error); | |
1689 | } | |
1690 | ||
1691 | static int | |
1692 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1693 | { | |
1694 | spa_t *spa; | |
1695 | int error; | |
1696 | ||
1697 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1698 | if (error == 0) { | |
1699 | spa_freeze(spa); | |
1700 | spa_close(spa, FTAG); | |
1701 | } | |
1702 | return (error); | |
1703 | } | |
1704 | ||
1705 | static int | |
1706 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1707 | { | |
1708 | spa_t *spa; | |
1709 | int error; | |
1710 | ||
1711 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1712 | return (error); | |
1713 | ||
9ae529ec CS |
1714 | if (zc->zc_cookie < spa_version(spa) || |
1715 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1716 | spa_close(spa, FTAG); |
2e528b49 | 1717 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1718 | } |
1719 | ||
1720 | spa_upgrade(spa, zc->zc_cookie); | |
1721 | spa_close(spa, FTAG); | |
1722 | ||
1723 | return (error); | |
1724 | } | |
1725 | ||
1726 | static int | |
1727 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1728 | { | |
1729 | spa_t *spa; | |
1730 | char *hist_buf; | |
1731 | uint64_t size; | |
1732 | int error; | |
1733 | ||
1734 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1735 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1736 | |
1737 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1738 | return (error); | |
1739 | ||
1740 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1741 | spa_close(spa, FTAG); | |
2e528b49 | 1742 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1743 | } |
1744 | ||
34b84cb8 | 1745 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1746 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1747 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1748 | error = ddi_copyout(hist_buf, |
1749 | (void *)(uintptr_t)zc->zc_history, | |
1750 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1751 | } |
1752 | ||
1753 | spa_close(spa, FTAG); | |
34b84cb8 | 1754 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1755 | return (error); |
1756 | } | |
1757 | ||
3541dc6d GA |
1758 | static int |
1759 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1760 | { | |
1761 | spa_t *spa; | |
1762 | int error; | |
1763 | ||
1764 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1765 | if (error == 0) { | |
1766 | error = spa_change_guid(spa); | |
1767 | spa_close(spa, FTAG); | |
1768 | } | |
1769 | return (error); | |
1770 | } | |
1771 | ||
34dc7c2f BB |
1772 | static int |
1773 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1774 | { | |
13fe0198 | 1775 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1776 | } |
1777 | ||
428870ff BB |
1778 | /* |
1779 | * inputs: | |
1780 | * zc_name name of filesystem | |
1781 | * zc_obj object to find | |
1782 | * | |
1783 | * outputs: | |
1784 | * zc_value name of object | |
1785 | */ | |
34dc7c2f BB |
1786 | static int |
1787 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1788 | { | |
428870ff | 1789 | objset_t *os; |
34dc7c2f BB |
1790 | int error; |
1791 | ||
428870ff BB |
1792 | /* XXX reading from objset not owned */ |
1793 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1794 | return (error); |
428870ff BB |
1795 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1796 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1797 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1798 | } |
1799 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1800 | sizeof (zc->zc_value)); |
428870ff | 1801 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1802 | |
1803 | return (error); | |
1804 | } | |
1805 | ||
572e2857 BB |
1806 | /* |
1807 | * inputs: | |
1808 | * zc_name name of filesystem | |
1809 | * zc_obj object to find | |
1810 | * | |
1811 | * outputs: | |
1812 | * zc_stat stats on object | |
1813 | * zc_value path to object | |
1814 | */ | |
1815 | static int | |
1816 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1817 | { | |
1818 | objset_t *os; | |
1819 | int error; | |
1820 | ||
1821 | /* XXX reading from objset not owned */ | |
1822 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1823 | return (error); | |
1824 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1825 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1826 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1827 | } |
1828 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1829 | sizeof (zc->zc_value)); | |
1830 | dmu_objset_rele(os, FTAG); | |
1831 | ||
1832 | return (error); | |
1833 | } | |
1834 | ||
34dc7c2f BB |
1835 | static int |
1836 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1837 | { | |
1838 | spa_t *spa; | |
1839 | int error; | |
64ad2b26 | 1840 | nvlist_t *config; |
34dc7c2f BB |
1841 | |
1842 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1843 | if (error != 0) | |
1844 | return (error); | |
1845 | ||
1846 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1847 | zc->zc_iflags, &config); |
34dc7c2f BB |
1848 | if (error == 0) { |
1849 | error = spa_vdev_add(spa, config); | |
1850 | nvlist_free(config); | |
1851 | } | |
1852 | spa_close(spa, FTAG); | |
1853 | return (error); | |
1854 | } | |
1855 | ||
428870ff BB |
1856 | /* |
1857 | * inputs: | |
1858 | * zc_name name of the pool | |
1859 | * zc_nvlist_conf nvlist of devices to remove | |
1860 | * zc_cookie to stop the remove? | |
1861 | */ | |
34dc7c2f BB |
1862 | static int |
1863 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1864 | { | |
1865 | spa_t *spa; | |
1866 | int error; | |
1867 | ||
1868 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1869 | if (error != 0) | |
1870 | return (error); | |
1871 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1872 | spa_close(spa, FTAG); | |
1873 | return (error); | |
1874 | } | |
1875 | ||
1876 | static int | |
1877 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1878 | { | |
1879 | spa_t *spa; | |
1880 | int error; | |
1881 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1882 | ||
1883 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1884 | return (error); | |
1885 | switch (zc->zc_cookie) { | |
1886 | case VDEV_STATE_ONLINE: | |
1887 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1888 | break; | |
1889 | ||
1890 | case VDEV_STATE_OFFLINE: | |
1891 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1892 | break; | |
1893 | ||
1894 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1895 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1896 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1897 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1898 | ||
1899 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1900 | break; |
1901 | ||
1902 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1903 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1904 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1905 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1906 | ||
1907 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1908 | break; |
1909 | ||
1910 | default: | |
2e528b49 | 1911 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
1912 | } |
1913 | zc->zc_cookie = newstate; | |
1914 | spa_close(spa, FTAG); | |
1915 | return (error); | |
1916 | } | |
1917 | ||
1918 | static int | |
1919 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1920 | { | |
1921 | spa_t *spa; | |
1922 | int replacing = zc->zc_cookie; | |
1923 | nvlist_t *config; | |
1924 | int error; | |
1925 | ||
1926 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1927 | return (error); | |
1928 | ||
1929 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1930 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1931 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1932 | nvlist_free(config); | |
1933 | } | |
1934 | ||
1935 | spa_close(spa, FTAG); | |
1936 | return (error); | |
1937 | } | |
1938 | ||
1939 | static int | |
1940 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1941 | { | |
1942 | spa_t *spa; | |
1943 | int error; | |
1944 | ||
1945 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1946 | return (error); | |
1947 | ||
fb5f0bc8 | 1948 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1949 | |
1950 | spa_close(spa, FTAG); | |
1951 | return (error); | |
1952 | } | |
1953 | ||
428870ff BB |
1954 | static int |
1955 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1956 | { | |
1957 | spa_t *spa; | |
1958 | nvlist_t *config, *props = NULL; | |
1959 | int error; | |
1960 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1961 | ||
1962 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1963 | return (error); | |
1964 | ||
c65aa5b2 BB |
1965 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1966 | zc->zc_iflags, &config))) { | |
428870ff BB |
1967 | spa_close(spa, FTAG); |
1968 | return (error); | |
1969 | } | |
1970 | ||
1971 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1972 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1973 | zc->zc_iflags, &props))) { | |
1974 | spa_close(spa, FTAG); | |
1975 | nvlist_free(config); | |
1976 | return (error); | |
1977 | } | |
1978 | ||
1979 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1980 | ||
1981 | spa_close(spa, FTAG); | |
1982 | ||
1983 | nvlist_free(config); | |
1984 | nvlist_free(props); | |
1985 | ||
1986 | return (error); | |
1987 | } | |
1988 | ||
34dc7c2f BB |
1989 | static int |
1990 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1991 | { | |
1992 | spa_t *spa; | |
1993 | char *path = zc->zc_value; | |
1994 | uint64_t guid = zc->zc_guid; | |
1995 | int error; | |
1996 | ||
1997 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1998 | if (error != 0) | |
1999 | return (error); | |
2000 | ||
2001 | error = spa_vdev_setpath(spa, guid, path); | |
2002 | spa_close(spa, FTAG); | |
2003 | return (error); | |
2004 | } | |
2005 | ||
9babb374 BB |
2006 | static int |
2007 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
2008 | { | |
2009 | spa_t *spa; | |
2010 | char *fru = zc->zc_value; | |
2011 | uint64_t guid = zc->zc_guid; | |
2012 | int error; | |
2013 | ||
2014 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2015 | if (error != 0) | |
2016 | return (error); | |
2017 | ||
2018 | error = spa_vdev_setfru(spa, guid, fru); | |
2019 | spa_close(spa, FTAG); | |
2020 | return (error); | |
2021 | } | |
2022 | ||
34dc7c2f | 2023 | static int |
572e2857 | 2024 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 2025 | { |
572e2857 | 2026 | int error = 0; |
34dc7c2f BB |
2027 | nvlist_t *nv; |
2028 | ||
34dc7c2f BB |
2029 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2030 | ||
2031 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2032 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2033 | dmu_objset_stats(os, nv); |
2034 | /* | |
2035 | * NB: zvol_get_stats() will read the objset contents, | |
2036 | * which we aren't supposed to do with a | |
b128c09f | 2037 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2038 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2039 | * XXX reading with out owning |
34dc7c2f | 2040 | */ |
330d06f9 MA |
2041 | if (!zc->zc_objset_stats.dds_inconsistent && |
2042 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2043 | error = zvol_get_stats(os, nv); | |
6d421005 B |
2044 | if (error == EIO) { |
2045 | nvlist_free(nv); | |
330d06f9 | 2046 | return (error); |
6d421005 | 2047 | } |
c99c9001 | 2048 | VERIFY0(error); |
34dc7c2f | 2049 | } |
8a8f5c6b BB |
2050 | if (error == 0) |
2051 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2052 | nvlist_free(nv); |
2053 | } | |
2054 | ||
572e2857 BB |
2055 | return (error); |
2056 | } | |
2057 | ||
2058 | /* | |
2059 | * inputs: | |
2060 | * zc_name name of filesystem | |
2061 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2062 | * | |
2063 | * outputs: | |
2064 | * zc_objset_stats stats | |
2065 | * zc_nvlist_dst property nvlist | |
2066 | * zc_nvlist_dst_size size of property nvlist | |
2067 | */ | |
2068 | static int | |
2069 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2070 | { | |
13fe0198 | 2071 | objset_t *os; |
572e2857 BB |
2072 | int error; |
2073 | ||
13fe0198 MA |
2074 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2075 | if (error == 0) { | |
2076 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2077 | dmu_objset_rele(os, FTAG); | |
2078 | } | |
572e2857 | 2079 | |
428870ff BB |
2080 | return (error); |
2081 | } | |
2082 | ||
2083 | /* | |
2084 | * inputs: | |
2085 | * zc_name name of filesystem | |
2086 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2087 | * | |
2088 | * outputs: | |
2089 | * zc_nvlist_dst received property nvlist | |
2090 | * zc_nvlist_dst_size size of received property nvlist | |
2091 | * | |
2092 | * Gets received properties (distinct from local properties on or after | |
2093 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2094 | * local property values. | |
2095 | */ | |
2096 | static int | |
26685276 | 2097 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2098 | { |
13fe0198 | 2099 | int error = 0; |
428870ff BB |
2100 | nvlist_t *nv; |
2101 | ||
428870ff BB |
2102 | /* |
2103 | * Without this check, we would return local property values if the | |
2104 | * caller has not already received properties on or after | |
2105 | * SPA_VERSION_RECVD_PROPS. | |
2106 | */ | |
13fe0198 | 2107 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2108 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2109 | |
2110 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2111 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2112 | error = put_nvlist(zc, nv); |
2113 | nvlist_free(nv); | |
2114 | } | |
2115 | ||
34dc7c2f BB |
2116 | return (error); |
2117 | } | |
2118 | ||
2119 | static int | |
2120 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2121 | { | |
2122 | uint64_t value; | |
2123 | int error; | |
2124 | ||
2125 | /* | |
2126 | * zfs_get_zplprop() will either find a value or give us | |
2127 | * the default value (if there is one). | |
2128 | */ | |
2129 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2130 | return (error); | |
2131 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2132 | return (0); | |
2133 | } | |
2134 | ||
2135 | /* | |
2136 | * inputs: | |
2137 | * zc_name name of filesystem | |
2138 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2139 | * | |
2140 | * outputs: | |
2141 | * zc_nvlist_dst zpl property nvlist | |
2142 | * zc_nvlist_dst_size size of zpl property nvlist | |
2143 | */ | |
2144 | static int | |
2145 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2146 | { | |
2147 | objset_t *os; | |
2148 | int err; | |
2149 | ||
428870ff | 2150 | /* XXX reading without owning */ |
c65aa5b2 | 2151 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2152 | return (err); |
2153 | ||
2154 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2155 | ||
2156 | /* | |
2157 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2158 | * which we aren't supposed to do with a DS_MODE_USER |
2159 | * hold, because it could be inconsistent. | |
34dc7c2f | 2160 | */ |
b8864a23 | 2161 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2162 | !zc->zc_objset_stats.dds_inconsistent && |
2163 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2164 | nvlist_t *nv; | |
2165 | ||
2166 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2167 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2168 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2169 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2170 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2171 | err = put_nvlist(zc, nv); | |
2172 | nvlist_free(nv); | |
2173 | } else { | |
2e528b49 | 2174 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2175 | } |
428870ff | 2176 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2177 | return (err); |
2178 | } | |
2179 | ||
ba6a2402 | 2180 | boolean_t |
9babb374 BB |
2181 | dataset_name_hidden(const char *name) |
2182 | { | |
2183 | /* | |
2184 | * Skip over datasets that are not visible in this zone, | |
2185 | * internal datasets (which have a $ in their name), and | |
2186 | * temporary datasets (which have a % in their name). | |
2187 | */ | |
2188 | if (strchr(name, '$') != NULL) | |
2189 | return (B_TRUE); | |
2190 | if (strchr(name, '%') != NULL) | |
2191 | return (B_TRUE); | |
2192 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2193 | return (B_TRUE); | |
2194 | return (B_FALSE); | |
2195 | } | |
2196 | ||
34dc7c2f BB |
2197 | /* |
2198 | * inputs: | |
2199 | * zc_name name of filesystem | |
2200 | * zc_cookie zap cursor | |
2201 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2202 | * | |
2203 | * outputs: | |
2204 | * zc_name name of next filesystem | |
9babb374 | 2205 | * zc_cookie zap cursor |
34dc7c2f BB |
2206 | * zc_objset_stats stats |
2207 | * zc_nvlist_dst property nvlist | |
2208 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2209 | */ |
2210 | static int | |
2211 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2212 | { | |
2213 | objset_t *os; | |
2214 | int error; | |
2215 | char *p; | |
428870ff | 2216 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2217 | |
428870ff | 2218 | top: |
c65aa5b2 | 2219 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2220 | if (error == ENOENT) |
2e528b49 | 2221 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2222 | return (error); |
2223 | } | |
2224 | ||
2225 | p = strrchr(zc->zc_name, '/'); | |
2226 | if (p == NULL || p[1] != '\0') | |
2227 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2228 | p = zc->zc_name + strlen(zc->zc_name); | |
2229 | ||
2230 | do { | |
2231 | error = dmu_dir_list_next(os, | |
2232 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2233 | NULL, &zc->zc_cookie); | |
2234 | if (error == ENOENT) | |
2e528b49 | 2235 | error = SET_ERROR(ESRCH); |
330d06f9 | 2236 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2237 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2238 | |
428870ff BB |
2239 | /* |
2240 | * If it's an internal dataset (ie. with a '$' in its name), | |
2241 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2242 | */ | |
2243 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2244 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2245 | if (error == ENOENT) { |
2246 | /* We lost a race with destroy, get the next one. */ | |
2247 | zc->zc_name[orig_len] = '\0'; | |
2248 | goto top; | |
2249 | } | |
2250 | } | |
34dc7c2f BB |
2251 | return (error); |
2252 | } | |
2253 | ||
2254 | /* | |
2255 | * inputs: | |
2256 | * zc_name name of filesystem | |
2257 | * zc_cookie zap cursor | |
2258 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2259 | * | |
2260 | * outputs: | |
2261 | * zc_name name of next snapshot | |
2262 | * zc_objset_stats stats | |
2263 | * zc_nvlist_dst property nvlist | |
2264 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2265 | */ |
2266 | static int | |
2267 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2268 | { | |
2269 | objset_t *os; | |
2270 | int error; | |
2271 | ||
428870ff | 2272 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2273 | if (error != 0) { |
b128c09f | 2274 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2275 | } |
34dc7c2f BB |
2276 | |
2277 | /* | |
2278 | * A dataset name of maximum length cannot have any snapshots, | |
2279 | * so exit immediately. | |
2280 | */ | |
eca7b760 IK |
2281 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= |
2282 | ZFS_MAX_DATASET_NAME_LEN) { | |
428870ff | 2283 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2284 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2285 | } |
2286 | ||
2287 | error = dmu_snapshot_list_next(os, | |
2288 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2289 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2290 | NULL); | |
2291 | ||
0cee2406 | 2292 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2293 | dsl_dataset_t *ds; |
2294 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2295 | ||
572e2857 | 2296 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2297 | if (error == 0) { |
572e2857 BB |
2298 | objset_t *ossnap; |
2299 | ||
2300 | error = dmu_objset_from_ds(ds, &ossnap); | |
2301 | if (error == 0) | |
2302 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2303 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2304 | } |
2305 | } else if (error == ENOENT) { | |
2e528b49 | 2306 | error = SET_ERROR(ESRCH); |
428870ff | 2307 | } |
34dc7c2f | 2308 | |
572e2857 | 2309 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2310 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2311 | if (error != 0) |
34dc7c2f | 2312 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2313 | return (error); |
2314 | } | |
2315 | ||
428870ff BB |
2316 | static int |
2317 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2318 | { |
428870ff BB |
2319 | const char *propname = nvpair_name(pair); |
2320 | uint64_t *valary; | |
2321 | unsigned int vallen; | |
2322 | const char *domain; | |
2323 | char *dash; | |
2324 | zfs_userquota_prop_t type; | |
2325 | uint64_t rid; | |
2326 | uint64_t quota; | |
3558fd73 | 2327 | zfs_sb_t *zsb; |
428870ff BB |
2328 | int err; |
2329 | ||
2330 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2331 | nvlist_t *attrs; | |
2332 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2333 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2334 | &pair) != 0) | |
2e528b49 | 2335 | return (SET_ERROR(EINVAL)); |
428870ff | 2336 | } |
34dc7c2f BB |
2337 | |
2338 | /* | |
428870ff BB |
2339 | * A correctly constructed propname is encoded as |
2340 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2341 | */ |
428870ff BB |
2342 | if ((dash = strchr(propname, '-')) == NULL || |
2343 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2344 | vallen != 3) | |
2e528b49 | 2345 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2346 | |
428870ff BB |
2347 | domain = dash + 1; |
2348 | type = valary[0]; | |
2349 | rid = valary[1]; | |
2350 | quota = valary[2]; | |
34dc7c2f | 2351 | |
3558fd73 | 2352 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2353 | if (err == 0) { |
3558fd73 BB |
2354 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2355 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2356 | } |
9babb374 | 2357 | |
428870ff BB |
2358 | return (err); |
2359 | } | |
34dc7c2f | 2360 | |
428870ff BB |
2361 | /* |
2362 | * If the named property is one that has a special function to set its value, | |
2363 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2364 | * not one of the special properties handled by this function, return -1. | |
2365 | * | |
2366 | * XXX: It would be better for callers of the property interface if we handled | |
2367 | * these special cases in dsl_prop.c (in the dsl layer). | |
2368 | */ | |
2369 | static int | |
2370 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2371 | nvpair_t *pair) | |
2372 | { | |
2373 | const char *propname = nvpair_name(pair); | |
2374 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2375 | uint64_t intval; | |
f1512ee6 | 2376 | int err = -1; |
9babb374 | 2377 | |
428870ff BB |
2378 | if (prop == ZPROP_INVAL) { |
2379 | if (zfs_prop_userquota(propname)) | |
2380 | return (zfs_prop_set_userquota(dsname, pair)); | |
2381 | return (-1); | |
2382 | } | |
34dc7c2f | 2383 | |
428870ff BB |
2384 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2385 | nvlist_t *attrs; | |
2386 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2387 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2388 | &pair) == 0); | |
2389 | } | |
b128c09f | 2390 | |
428870ff BB |
2391 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2392 | return (-1); | |
34dc7c2f | 2393 | |
428870ff | 2394 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2395 | |
428870ff BB |
2396 | switch (prop) { |
2397 | case ZFS_PROP_QUOTA: | |
2398 | err = dsl_dir_set_quota(dsname, source, intval); | |
2399 | break; | |
2400 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2401 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff | 2402 | break; |
788eb90c JJ |
2403 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2404 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2405 | if (intval == UINT64_MAX) { | |
2406 | /* clearing the limit, just do it */ | |
2407 | err = 0; | |
2408 | } else { | |
2409 | err = dsl_dir_activate_fs_ss_limit(dsname); | |
2410 | } | |
2411 | /* | |
2412 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2413 | * default path to set the value in the nvlist. | |
2414 | */ | |
2415 | if (err == 0) | |
2416 | err = -1; | |
2417 | break; | |
428870ff BB |
2418 | case ZFS_PROP_RESERVATION: |
2419 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2420 | break; | |
2421 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2422 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2423 | break; |
2424 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2425 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2426 | break; |
0b4d1b58 | 2427 | case ZFS_PROP_SNAPDEV: |
a0bd735a | 2428 | err = zvol_set_snapdev(dsname, source, intval); |
0b4d1b58 | 2429 | break; |
428870ff BB |
2430 | case ZFS_PROP_VERSION: |
2431 | { | |
3558fd73 | 2432 | zfs_sb_t *zsb; |
428870ff | 2433 | |
3558fd73 | 2434 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2435 | break; |
b128c09f | 2436 | |
3558fd73 BB |
2437 | err = zfs_set_version(zsb, intval); |
2438 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2439 | |
428870ff BB |
2440 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2441 | zfs_cmd_t *zc; | |
34dc7c2f | 2442 | |
efcd79a8 | 2443 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
428870ff BB |
2444 | (void) strcpy(zc->zc_name, dsname); |
2445 | (void) zfs_ioc_userspace_upgrade(zc); | |
1de321e6 | 2446 | (void) zfs_ioc_userobjspace_upgrade(zc); |
428870ff | 2447 | kmem_free(zc, sizeof (zfs_cmd_t)); |
34dc7c2f | 2448 | } |
428870ff BB |
2449 | break; |
2450 | } | |
428870ff BB |
2451 | default: |
2452 | err = -1; | |
2453 | } | |
34dc7c2f | 2454 | |
428870ff BB |
2455 | return (err); |
2456 | } | |
34dc7c2f | 2457 | |
428870ff BB |
2458 | /* |
2459 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2460 | * it continues to set as many as it can and returns the last error |
2461 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2462 | * with the list of names of all the properties that failed along with the | |
2463 | * corresponding error numbers. | |
428870ff | 2464 | * |
6f1ffb06 MA |
2465 | * If every property is set successfully, zero is returned and errlist is not |
2466 | * modified. | |
428870ff BB |
2467 | */ |
2468 | int | |
2469 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2470 | nvlist_t *errlist) |
428870ff BB |
2471 | { |
2472 | nvpair_t *pair; | |
2473 | nvpair_t *propval; | |
2474 | int rv = 0; | |
2475 | uint64_t intval; | |
2476 | char *strval; | |
34dc7c2f | 2477 | |
6f1ffb06 MA |
2478 | nvlist_t *genericnvl = fnvlist_alloc(); |
2479 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2480 | retry: |
2481 | pair = NULL; | |
2482 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2483 | const char *propname = nvpair_name(pair); | |
2484 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2485 | int err = 0; | |
2486 | ||
2487 | /* decode the property value */ | |
2488 | propval = pair; | |
2489 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2490 | nvlist_t *attrs; | |
6f1ffb06 | 2491 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2492 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2493 | &propval) != 0) | |
2e528b49 | 2494 | err = SET_ERROR(EINVAL); |
9babb374 | 2495 | } |
34dc7c2f | 2496 | |
428870ff BB |
2497 | /* Validate value type */ |
2498 | if (err == 0 && prop == ZPROP_INVAL) { | |
2499 | if (zfs_prop_user(propname)) { | |
2500 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2501 | err = SET_ERROR(EINVAL); |
428870ff BB |
2502 | } else if (zfs_prop_userquota(propname)) { |
2503 | if (nvpair_type(propval) != | |
2504 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2505 | err = SET_ERROR(EINVAL); |
330d06f9 | 2506 | } else { |
2e528b49 | 2507 | err = SET_ERROR(EINVAL); |
428870ff BB |
2508 | } |
2509 | } else if (err == 0) { | |
2510 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2511 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2512 | err = SET_ERROR(EINVAL); |
428870ff | 2513 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2514 | const char *unused; |
2515 | ||
6f1ffb06 | 2516 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2517 | |
2518 | switch (zfs_prop_get_type(prop)) { | |
2519 | case PROP_TYPE_NUMBER: | |
2520 | break; | |
2521 | case PROP_TYPE_STRING: | |
2e528b49 | 2522 | err = SET_ERROR(EINVAL); |
428870ff | 2523 | break; |
34dc7c2f BB |
2524 | case PROP_TYPE_INDEX: |
2525 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2526 | intval, &unused) != 0) |
2e528b49 | 2527 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2528 | break; |
2529 | default: | |
2530 | cmn_err(CE_PANIC, | |
2531 | "unknown property type"); | |
34dc7c2f | 2532 | } |
34dc7c2f | 2533 | } else { |
2e528b49 | 2534 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2535 | } |
34dc7c2f | 2536 | } |
428870ff BB |
2537 | |
2538 | /* Validate permissions */ | |
2539 | if (err == 0) | |
2540 | err = zfs_check_settable(dsname, pair, CRED()); | |
2541 | ||
2542 | if (err == 0) { | |
2543 | err = zfs_prop_set_special(dsname, source, pair); | |
2544 | if (err == -1) { | |
2545 | /* | |
2546 | * For better performance we build up a list of | |
2547 | * properties to set in a single transaction. | |
2548 | */ | |
2549 | err = nvlist_add_nvpair(genericnvl, pair); | |
2550 | } else if (err != 0 && nvl != retrynvl) { | |
2551 | /* | |
2552 | * This may be a spurious error caused by | |
2553 | * receiving quota and reservation out of order. | |
2554 | * Try again in a second pass. | |
2555 | */ | |
2556 | err = nvlist_add_nvpair(retrynvl, pair); | |
2557 | } | |
2558 | } | |
2559 | ||
6f1ffb06 MA |
2560 | if (err != 0) { |
2561 | if (errlist != NULL) | |
2562 | fnvlist_add_int32(errlist, propname, err); | |
2563 | rv = err; | |
2564 | } | |
34dc7c2f BB |
2565 | } |
2566 | ||
428870ff BB |
2567 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2568 | nvl = retrynvl; | |
2569 | goto retry; | |
2570 | } | |
2571 | ||
2572 | if (!nvlist_empty(genericnvl) && | |
2573 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2574 | /* | |
2575 | * If this fails, we still want to set as many properties as we | |
2576 | * can, so try setting them individually. | |
2577 | */ | |
2578 | pair = NULL; | |
2579 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2580 | const char *propname = nvpair_name(pair); | |
2581 | int err = 0; | |
2582 | ||
2583 | propval = pair; | |
2584 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2585 | nvlist_t *attrs; | |
6f1ffb06 MA |
2586 | attrs = fnvpair_value_nvlist(pair); |
2587 | propval = fnvlist_lookup_nvpair(attrs, | |
2588 | ZPROP_VALUE); | |
428870ff BB |
2589 | } |
2590 | ||
2591 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2592 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2593 | err = dsl_prop_set_string(dsname, propname, |
2594 | source, strval); | |
428870ff | 2595 | } else { |
6f1ffb06 | 2596 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2597 | err = dsl_prop_set_int(dsname, propname, source, |
2598 | intval); | |
428870ff BB |
2599 | } |
2600 | ||
2601 | if (err != 0) { | |
6f1ffb06 MA |
2602 | if (errlist != NULL) { |
2603 | fnvlist_add_int32(errlist, propname, | |
2604 | err); | |
2605 | } | |
2606 | rv = err; | |
428870ff BB |
2607 | } |
2608 | } | |
9babb374 | 2609 | } |
9babb374 | 2610 | nvlist_free(genericnvl); |
428870ff BB |
2611 | nvlist_free(retrynvl); |
2612 | ||
428870ff | 2613 | return (rv); |
9babb374 BB |
2614 | } |
2615 | ||
2616 | /* | |
2617 | * Check that all the properties are valid user properties. | |
2618 | */ | |
2619 | static int | |
6f1ffb06 | 2620 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2621 | { |
428870ff | 2622 | nvpair_t *pair = NULL; |
9babb374 BB |
2623 | int error = 0; |
2624 | ||
428870ff BB |
2625 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2626 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2627 | |
2628 | if (!zfs_prop_user(propname) || | |
428870ff | 2629 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2630 | return (SET_ERROR(EINVAL)); |
9babb374 | 2631 | |
c65aa5b2 BB |
2632 | if ((error = zfs_secpolicy_write_perms(fsname, |
2633 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2634 | return (error); |
2635 | ||
2636 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2637 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2638 | |
da536844 | 2639 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2640 | return (SET_ERROR(E2BIG)); |
9babb374 | 2641 | } |
34dc7c2f BB |
2642 | return (0); |
2643 | } | |
2644 | ||
428870ff BB |
2645 | static void |
2646 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2647 | { | |
2648 | nvpair_t *pair; | |
2649 | ||
2650 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2651 | ||
2652 | pair = NULL; | |
2653 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2654 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2655 | continue; | |
2656 | ||
2657 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2658 | } | |
2659 | } | |
2660 | ||
2661 | static int | |
13fe0198 | 2662 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2663 | nvlist_t *skipped) |
2664 | { | |
2665 | int err = 0; | |
2666 | nvlist_t *cleared_props = NULL; | |
2667 | props_skip(props, skipped, &cleared_props); | |
2668 | if (!nvlist_empty(cleared_props)) { | |
2669 | /* | |
2670 | * Acts on local properties until the dataset has received | |
2671 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2672 | */ | |
2673 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2674 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2675 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2676 | } |
2677 | nvlist_free(cleared_props); | |
2678 | return (err); | |
2679 | } | |
2680 | ||
34dc7c2f BB |
2681 | /* |
2682 | * inputs: | |
2683 | * zc_name name of filesystem | |
9babb374 | 2684 | * zc_value name of property to set |
34dc7c2f | 2685 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2686 | * zc_cookie received properties flag |
34dc7c2f | 2687 | * |
428870ff BB |
2688 | * outputs: |
2689 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2690 | */ |
2691 | static int | |
2692 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2693 | { | |
2694 | nvlist_t *nvl; | |
428870ff BB |
2695 | boolean_t received = zc->zc_cookie; |
2696 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2697 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2698 | nvlist_t *errors; |
34dc7c2f BB |
2699 | int error; |
2700 | ||
2701 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2702 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2703 | return (error); |
2704 | ||
428870ff | 2705 | if (received) { |
b128c09f | 2706 | nvlist_t *origprops; |
b128c09f | 2707 | |
13fe0198 MA |
2708 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2709 | (void) clear_received_props(zc->zc_name, | |
2710 | origprops, nvl); | |
2711 | nvlist_free(origprops); | |
428870ff | 2712 | } |
13fe0198 MA |
2713 | |
2714 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2715 | } |
2716 | ||
6f1ffb06 | 2717 | errors = fnvlist_alloc(); |
13fe0198 MA |
2718 | if (error == 0) |
2719 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2720 | |
b8864a23 | 2721 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2722 | (void) put_nvlist(zc, errors); |
2723 | } | |
2724 | ||
2725 | nvlist_free(errors); | |
34dc7c2f BB |
2726 | nvlist_free(nvl); |
2727 | return (error); | |
2728 | } | |
2729 | ||
2730 | /* | |
2731 | * inputs: | |
2732 | * zc_name name of filesystem | |
2733 | * zc_value name of property to inherit | |
428870ff | 2734 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2735 | * |
2736 | * outputs: none | |
2737 | */ | |
2738 | static int | |
2739 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2740 | { | |
428870ff BB |
2741 | const char *propname = zc->zc_value; |
2742 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2743 | boolean_t received = zc->zc_cookie; | |
2744 | zprop_source_t source = (received | |
2745 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2746 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2747 | ||
2748 | if (received) { | |
2749 | nvlist_t *dummy; | |
2750 | nvpair_t *pair; | |
2751 | zprop_type_t type; | |
2752 | int err; | |
2753 | ||
2754 | /* | |
2755 | * zfs_prop_set_special() expects properties in the form of an | |
2756 | * nvpair with type info. | |
2757 | */ | |
2758 | if (prop == ZPROP_INVAL) { | |
2759 | if (!zfs_prop_user(propname)) | |
2e528b49 | 2760 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2761 | |
2762 | type = PROP_TYPE_STRING; | |
2763 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2764 | prop == ZFS_PROP_VERSION) { | |
2e528b49 | 2765 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2766 | } else { |
2767 | type = zfs_prop_get_type(prop); | |
2768 | } | |
2769 | ||
2770 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2771 | ||
2772 | switch (type) { | |
2773 | case PROP_TYPE_STRING: | |
2774 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2775 | break; | |
2776 | case PROP_TYPE_NUMBER: | |
2777 | case PROP_TYPE_INDEX: | |
2778 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2779 | break; | |
2780 | default: | |
2781 | nvlist_free(dummy); | |
2e528b49 | 2782 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2783 | } |
2784 | ||
2785 | pair = nvlist_next_nvpair(dummy, NULL); | |
9d016804 | 2786 | if (pair == NULL) { |
2787 | nvlist_free(dummy); | |
2788 | return (SET_ERROR(EINVAL)); | |
2789 | } | |
428870ff BB |
2790 | err = zfs_prop_set_special(zc->zc_name, source, pair); |
2791 | nvlist_free(dummy); | |
2792 | if (err != -1) | |
2793 | return (err); /* special property already handled */ | |
2794 | } else { | |
2795 | /* | |
2796 | * Only check this in the non-received case. We want to allow | |
2797 | * 'inherit -S' to revert non-inheritable properties like quota | |
2798 | * and reservation to the received or default values even though | |
2799 | * they are not considered inheritable. | |
2800 | */ | |
2801 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2e528b49 | 2802 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2803 | } |
2804 | ||
6f1ffb06 | 2805 | /* property name has been validated by zfs_secpolicy_inherit_prop() */ |
13fe0198 | 2806 | return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); |
34dc7c2f BB |
2807 | } |
2808 | ||
2809 | static int | |
2810 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2811 | { | |
2812 | nvlist_t *props; | |
2813 | spa_t *spa; | |
2814 | int error; | |
428870ff | 2815 | nvpair_t *pair; |
34dc7c2f | 2816 | |
c65aa5b2 BB |
2817 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2818 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2819 | return (error); |
2820 | ||
d164b209 BB |
2821 | /* |
2822 | * If the only property is the configfile, then just do a spa_lookup() | |
2823 | * to handle the faulted case. | |
2824 | */ | |
428870ff BB |
2825 | pair = nvlist_next_nvpair(props, NULL); |
2826 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2827 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2828 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2829 | mutex_enter(&spa_namespace_lock); |
2830 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2831 | spa_configfile_set(spa, props, B_FALSE); | |
2832 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2833 | } | |
2834 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2835 | if (spa != NULL) { |
2836 | nvlist_free(props); | |
d164b209 | 2837 | return (0); |
428870ff | 2838 | } |
d164b209 BB |
2839 | } |
2840 | ||
34dc7c2f BB |
2841 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2842 | nvlist_free(props); | |
2843 | return (error); | |
2844 | } | |
2845 | ||
2846 | error = spa_prop_set(spa, props); | |
2847 | ||
2848 | nvlist_free(props); | |
2849 | spa_close(spa, FTAG); | |
2850 | ||
2851 | return (error); | |
2852 | } | |
2853 | ||
2854 | static int | |
2855 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2856 | { | |
2857 | spa_t *spa; | |
2858 | int error; | |
2859 | nvlist_t *nvp = NULL; | |
2860 | ||
d164b209 BB |
2861 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2862 | /* | |
2863 | * If the pool is faulted, there may be properties we can still | |
2864 | * get (such as altroot and cachefile), so attempt to get them | |
2865 | * anyway. | |
2866 | */ | |
2867 | mutex_enter(&spa_namespace_lock); | |
2868 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2869 | error = spa_prop_get(spa, &nvp); | |
2870 | mutex_exit(&spa_namespace_lock); | |
2871 | } else { | |
2872 | error = spa_prop_get(spa, &nvp); | |
2873 | spa_close(spa, FTAG); | |
2874 | } | |
34dc7c2f | 2875 | |
b8864a23 | 2876 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2877 | error = put_nvlist(zc, nvp); |
2878 | else | |
2e528b49 | 2879 | error = SET_ERROR(EFAULT); |
34dc7c2f | 2880 | |
d164b209 | 2881 | nvlist_free(nvp); |
34dc7c2f BB |
2882 | return (error); |
2883 | } | |
2884 | ||
34dc7c2f BB |
2885 | /* |
2886 | * inputs: | |
2887 | * zc_name name of filesystem | |
2888 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2889 | * zc_perm_action allow/unallow flag | |
2890 | * | |
2891 | * outputs: none | |
2892 | */ | |
2893 | static int | |
2894 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2895 | { | |
2896 | int error; | |
2897 | nvlist_t *fsaclnv = NULL; | |
2898 | ||
2899 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2900 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2901 | return (error); |
2902 | ||
2903 | /* | |
2904 | * Verify nvlist is constructed correctly | |
2905 | */ | |
2906 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2907 | nvlist_free(fsaclnv); | |
2e528b49 | 2908 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
2909 | } |
2910 | ||
2911 | /* | |
2912 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2913 | * that user is allowed to hand out each permission in | |
2914 | * the nvlist(s) | |
2915 | */ | |
2916 | ||
2917 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 2918 | if (error != 0) { |
34dc7c2f BB |
2919 | if (zc->zc_perm_action == B_FALSE) { |
2920 | error = dsl_deleg_can_allow(zc->zc_name, | |
2921 | fsaclnv, CRED()); | |
2922 | } else { | |
2923 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2924 | fsaclnv, CRED()); | |
2925 | } | |
2926 | } | |
2927 | ||
2928 | if (error == 0) | |
2929 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2930 | ||
2931 | nvlist_free(fsaclnv); | |
2932 | return (error); | |
2933 | } | |
2934 | ||
2935 | /* | |
2936 | * inputs: | |
2937 | * zc_name name of filesystem | |
2938 | * | |
2939 | * outputs: | |
2940 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2941 | */ | |
2942 | static int | |
2943 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2944 | { | |
2945 | nvlist_t *nvp; | |
2946 | int error; | |
2947 | ||
2948 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2949 | error = put_nvlist(zc, nvp); | |
2950 | nvlist_free(nvp); | |
2951 | } | |
2952 | ||
2953 | return (error); | |
2954 | } | |
2955 | ||
34dc7c2f BB |
2956 | /* ARGSUSED */ |
2957 | static void | |
2958 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2959 | { | |
2960 | zfs_creat_t *zct = arg; | |
2961 | ||
2962 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2963 | } | |
2964 | ||
2965 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2966 | ||
2967 | /* | |
2968 | * inputs: | |
b128c09f | 2969 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
2970 | * fuids_ok fuids allowed in this version of the spa? |
2971 | * sa_ok SAs allowed in this version of the spa? | |
2972 | * createprops list of properties requested by creator | |
34dc7c2f BB |
2973 | * |
2974 | * outputs: | |
2975 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2976 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2977 | * |
2978 | * Determine the settings for utf8only, normalization and | |
2979 | * casesensitivity. Specific values may have been requested by the | |
2980 | * creator and/or we can inherit values from the parent dataset. If | |
2981 | * the file system is of too early a vintage, a creator can not | |
2982 | * request settings for these properties, even if the requested | |
2983 | * setting is the default value. We don't actually want to create dsl | |
2984 | * properties for these, so remove them from the source nvlist after | |
2985 | * processing. | |
2986 | */ | |
2987 | static int | |
9babb374 | 2988 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2989 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2990 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2991 | { |
34dc7c2f BB |
2992 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2993 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2994 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2995 | int error; |
34dc7c2f BB |
2996 | |
2997 | ASSERT(zplprops != NULL); | |
2998 | ||
34dc7c2f BB |
2999 | /* |
3000 | * Pull out creator prop choices, if any. | |
3001 | */ | |
3002 | if (createprops) { | |
b128c09f BB |
3003 | (void) nvlist_lookup_uint64(createprops, |
3004 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
3005 | (void) nvlist_lookup_uint64(createprops, |
3006 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
3007 | (void) nvlist_remove_all(createprops, | |
3008 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
3009 | (void) nvlist_lookup_uint64(createprops, | |
3010 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
3011 | (void) nvlist_remove_all(createprops, | |
3012 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
3013 | (void) nvlist_lookup_uint64(createprops, | |
3014 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
3015 | (void) nvlist_remove_all(createprops, | |
3016 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
3017 | } | |
3018 | ||
3019 | /* | |
b128c09f BB |
3020 | * If the zpl version requested is whacky or the file system |
3021 | * or pool is version is too "young" to support normalization | |
3022 | * and the creator tried to set a value for one of the props, | |
3023 | * error out. | |
34dc7c2f | 3024 | */ |
b128c09f BB |
3025 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3026 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3027 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3028 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3029 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3030 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 3031 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
3032 | |
3033 | /* | |
3034 | * Put the version in the zplprops | |
3035 | */ | |
3036 | VERIFY(nvlist_add_uint64(zplprops, | |
3037 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3038 | ||
b129c659 MM |
3039 | if (norm == ZFS_PROP_UNDEFINED && |
3040 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3041 | return (error); | |
34dc7c2f BB |
3042 | VERIFY(nvlist_add_uint64(zplprops, |
3043 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3044 | ||
3045 | /* | |
3046 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3047 | */ | |
3048 | if (norm) | |
3049 | u8 = 1; | |
b129c659 MM |
3050 | if (u8 == ZFS_PROP_UNDEFINED && |
3051 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3052 | return (error); | |
34dc7c2f BB |
3053 | VERIFY(nvlist_add_uint64(zplprops, |
3054 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3055 | ||
b129c659 MM |
3056 | if (sense == ZFS_PROP_UNDEFINED && |
3057 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3058 | return (error); | |
34dc7c2f BB |
3059 | VERIFY(nvlist_add_uint64(zplprops, |
3060 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3061 | ||
3062 | if (is_ci) | |
3063 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3064 | ||
34dc7c2f BB |
3065 | return (0); |
3066 | } | |
3067 | ||
b128c09f BB |
3068 | static int |
3069 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3070 | nvlist_t *zplprops, boolean_t *is_ci) | |
3071 | { | |
428870ff | 3072 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3073 | uint64_t zplver = ZPL_VERSION; |
3074 | objset_t *os = NULL; | |
eca7b760 | 3075 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
b128c09f | 3076 | char *cp; |
428870ff BB |
3077 | spa_t *spa; |
3078 | uint64_t spa_vers; | |
b128c09f BB |
3079 | int error; |
3080 | ||
3081 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3082 | cp = strrchr(parentname, '/'); | |
3083 | ASSERT(cp != NULL); | |
3084 | cp[0] = '\0'; | |
3085 | ||
428870ff BB |
3086 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3087 | return (error); | |
3088 | ||
3089 | spa_vers = spa_version(spa); | |
3090 | spa_close(spa, FTAG); | |
3091 | ||
3092 | zplver = zfs_zpl_version_map(spa_vers); | |
3093 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3094 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3095 | |
3096 | /* | |
3097 | * Open parent object set so we can inherit zplprop values. | |
3098 | */ | |
428870ff | 3099 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3100 | return (error); |
3101 | ||
428870ff | 3102 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3103 | zplprops, is_ci); |
428870ff | 3104 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3105 | return (error); |
3106 | } | |
3107 | ||
3108 | static int | |
3109 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3110 | nvlist_t *zplprops, boolean_t *is_ci) | |
3111 | { | |
428870ff BB |
3112 | boolean_t fuids_ok; |
3113 | boolean_t sa_ok; | |
b128c09f BB |
3114 | uint64_t zplver = ZPL_VERSION; |
3115 | int error; | |
3116 | ||
428870ff BB |
3117 | zplver = zfs_zpl_version_map(spa_vers); |
3118 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3119 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3120 | |
428870ff BB |
3121 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3122 | createprops, zplprops, is_ci); | |
b128c09f BB |
3123 | return (error); |
3124 | } | |
3125 | ||
34dc7c2f | 3126 | /* |
6f1ffb06 MA |
3127 | * innvl: { |
3128 | * "type" -> dmu_objset_type_t (int32) | |
3129 | * (optional) "props" -> { prop -> value } | |
3130 | * } | |
34dc7c2f | 3131 | * |
6f1ffb06 | 3132 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3133 | */ |
3134 | static int | |
6f1ffb06 | 3135 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3136 | { |
34dc7c2f | 3137 | int error = 0; |
6f1ffb06 | 3138 | zfs_creat_t zct = { 0 }; |
34dc7c2f BB |
3139 | nvlist_t *nvprops = NULL; |
3140 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
6f1ffb06 MA |
3141 | int32_t type32; |
3142 | dmu_objset_type_t type; | |
3143 | boolean_t is_insensitive = B_FALSE; | |
34dc7c2f | 3144 | |
6f1ffb06 | 3145 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
2e528b49 | 3146 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3147 | type = type32; |
3148 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
34dc7c2f | 3149 | |
6f1ffb06 | 3150 | switch (type) { |
34dc7c2f BB |
3151 | case DMU_OST_ZFS: |
3152 | cbfunc = zfs_create_cb; | |
3153 | break; | |
3154 | ||
3155 | case DMU_OST_ZVOL: | |
3156 | cbfunc = zvol_create_cb; | |
3157 | break; | |
3158 | ||
3159 | default: | |
3160 | cbfunc = NULL; | |
3161 | break; | |
3162 | } | |
6f1ffb06 MA |
3163 | if (strchr(fsname, '@') || |
3164 | strchr(fsname, '%')) | |
2e528b49 | 3165 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3166 | |
34dc7c2f BB |
3167 | zct.zct_props = nvprops; |
3168 | ||
6f1ffb06 | 3169 | if (cbfunc == NULL) |
2e528b49 | 3170 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3171 | |
6f1ffb06 MA |
3172 | if (type == DMU_OST_ZVOL) { |
3173 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3174 | |
6f1ffb06 | 3175 | if (nvprops == NULL) |
2e528b49 | 3176 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3177 | if (nvlist_lookup_uint64(nvprops, |
3178 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3179 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3180 | |
6f1ffb06 MA |
3181 | if ((error = nvlist_lookup_uint64(nvprops, |
3182 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3183 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3184 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3185 | |
6f1ffb06 MA |
3186 | if (error != 0) |
3187 | volblocksize = zfs_prop_default_numeric( | |
3188 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3189 | |
4cb7b9c5 | 3190 | if ((error = zvol_check_volblocksize(fsname, |
6f1ffb06 MA |
3191 | volblocksize)) != 0 || |
3192 | (error = zvol_check_volsize(volsize, | |
3193 | volblocksize)) != 0) | |
3194 | return (error); | |
3195 | } else if (type == DMU_OST_ZFS) { | |
3196 | int error; | |
34dc7c2f | 3197 | |
6f1ffb06 MA |
3198 | /* |
3199 | * We have to have normalization and | |
3200 | * case-folding flags correct when we do the | |
3201 | * file system creation, so go figure them out | |
3202 | * now. | |
3203 | */ | |
3204 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3205 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3206 | error = zfs_fill_zplprops(fsname, nvprops, | |
3207 | zct.zct_zplprops, &is_insensitive); | |
3208 | if (error != 0) { | |
3209 | nvlist_free(zct.zct_zplprops); | |
3210 | return (error); | |
34dc7c2f | 3211 | } |
34dc7c2f BB |
3212 | } |
3213 | ||
6f1ffb06 MA |
3214 | error = dmu_objset_create(fsname, type, |
3215 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); | |
3216 | nvlist_free(zct.zct_zplprops); | |
3217 | ||
34dc7c2f BB |
3218 | /* |
3219 | * It would be nice to do this atomically. | |
3220 | */ | |
3221 | if (error == 0) { | |
6f1ffb06 MA |
3222 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3223 | nvprops, outnvl); | |
f74b821a BB |
3224 | if (error != 0) { |
3225 | spa_t *spa; | |
3226 | int error2; | |
3227 | ||
3228 | /* | |
3229 | * Volumes will return EBUSY and cannot be destroyed | |
3230 | * until all asynchronous minor handling has completed. | |
3231 | * Wait for the spa_zvol_taskq to drain then retry. | |
3232 | */ | |
3233 | error2 = dsl_destroy_head(fsname); | |
3234 | while ((error2 == EBUSY) && (type == DMU_OST_ZVOL)) { | |
3235 | error2 = spa_open(fsname, &spa, FTAG); | |
3236 | if (error2 == 0) { | |
3237 | taskq_wait(spa->spa_zvol_taskq); | |
3238 | spa_close(spa, FTAG); | |
3239 | } | |
3240 | error2 = dsl_destroy_head(fsname); | |
3241 | } | |
3242 | } | |
34dc7c2f | 3243 | } |
34dc7c2f BB |
3244 | return (error); |
3245 | } | |
3246 | ||
3247 | /* | |
6f1ffb06 MA |
3248 | * innvl: { |
3249 | * "origin" -> name of origin snapshot | |
3250 | * (optional) "props" -> { prop -> value } | |
3251 | * } | |
34dc7c2f | 3252 | * |
428870ff | 3253 | * outputs: |
6f1ffb06 | 3254 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3255 | */ |
3256 | static int | |
6f1ffb06 | 3257 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3258 | { |
6f1ffb06 | 3259 | int error = 0; |
b128c09f | 3260 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3261 | char *origin_name; |
b128c09f | 3262 | |
6f1ffb06 | 3263 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
2e528b49 | 3264 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3265 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3266 | |
6f1ffb06 MA |
3267 | if (strchr(fsname, '@') || |
3268 | strchr(fsname, '%')) | |
2e528b49 | 3269 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3270 | |
3271 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3272 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
3273 | error = dmu_objset_clone(fsname, origin_name); |
3274 | if (error != 0) | |
6f1ffb06 | 3275 | return (error); |
b128c09f | 3276 | |
6f1ffb06 MA |
3277 | /* |
3278 | * It would be nice to do this atomically. | |
3279 | */ | |
3280 | if (error == 0) { | |
3281 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3282 | nvprops, outnvl); | |
3283 | if (error != 0) | |
13fe0198 | 3284 | (void) dsl_destroy_head(fsname); |
b128c09f | 3285 | } |
6f1ffb06 MA |
3286 | return (error); |
3287 | } | |
9babb374 | 3288 | |
6f1ffb06 MA |
3289 | /* |
3290 | * innvl: { | |
3291 | * "snaps" -> { snapshot1, snapshot2 } | |
3292 | * (optional) "props" -> { prop -> value (string) } | |
3293 | * } | |
3294 | * | |
3295 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3296 | */ |
3297 | static int | |
3298 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3299 | { | |
3300 | nvlist_t *snaps; | |
3301 | nvlist_t *props = NULL; | |
3302 | int error, poollen; | |
3303 | nvpair_t *pair, *pair2; | |
9babb374 | 3304 | |
6f1ffb06 MA |
3305 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3306 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3307 | return (error); | |
3308 | ||
3309 | if (!nvlist_empty(props) && | |
3310 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3311 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3312 | |
3313 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 3314 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3315 | poollen = strlen(poolname); |
3316 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3317 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3318 | const char *name = nvpair_name(pair); | |
3319 | const char *cp = strchr(name, '@'); | |
3320 | ||
3321 | /* | |
3322 | * The snap name must contain an @, and the part after it must | |
3323 | * contain only valid characters. | |
3324 | */ | |
da536844 MA |
3325 | if (cp == NULL || |
3326 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3327 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3328 | |
3329 | /* | |
3330 | * The snap must be in the specified pool. | |
3331 | */ | |
3332 | if (strncmp(name, poolname, poollen) != 0 || | |
3333 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3334 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3335 | |
3336 | /* This must be the only snap of this fs. */ | |
3337 | for (pair2 = nvlist_next_nvpair(snaps, pair); | |
3338 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { | |
3339 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3340 | == 0) { | |
2e528b49 | 3341 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3342 | } |
3343 | } | |
3344 | } | |
3345 | ||
13fe0198 | 3346 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 | 3347 | |
6f1ffb06 MA |
3348 | return (error); |
3349 | } | |
3350 | ||
3351 | /* | |
3352 | * innvl: "message" -> string | |
3353 | */ | |
3354 | /* ARGSUSED */ | |
3355 | static int | |
3356 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3357 | { | |
3358 | char *message; | |
3359 | spa_t *spa; | |
3360 | int error; | |
3361 | char *poolname; | |
3362 | ||
3363 | /* | |
3364 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3365 | * which was set at the end of the last successful ioctl that allows | |
3366 | * logging. The secpolicy func already checked that it is set. | |
3367 | * Only one log ioctl is allowed after each successful ioctl, so | |
3368 | * we clear the TSD here. | |
3369 | */ | |
3370 | poolname = tsd_get(zfs_allow_log_key); | |
9f3d1407 | 3371 | if (poolname == NULL) |
3372 | return (SET_ERROR(EINVAL)); | |
6f1ffb06 MA |
3373 | (void) tsd_set(zfs_allow_log_key, NULL); |
3374 | error = spa_open(poolname, &spa, FTAG); | |
3375 | strfree(poolname); | |
3376 | if (error != 0) | |
3377 | return (error); | |
3378 | ||
3379 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3380 | spa_close(spa, FTAG); | |
2e528b49 | 3381 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3382 | } |
3383 | ||
3384 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3385 | spa_close(spa, FTAG); | |
2e528b49 | 3386 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3387 | } |
3388 | ||
3389 | error = spa_history_log(spa, message); | |
3390 | spa_close(spa, FTAG); | |
b128c09f | 3391 | return (error); |
34dc7c2f BB |
3392 | } |
3393 | ||
ebe7e575 | 3394 | /* |
13fe0198 MA |
3395 | * The dp_config_rwlock must not be held when calling this, because the |
3396 | * unmount may need to write out data. | |
3397 | * | |
3398 | * This function is best-effort. Callers must deal gracefully if it | |
3399 | * remains mounted (or is remounted after this call). | |
d09f25dc | 3400 | * |
278bee93 BB |
3401 | * Returns 0 if the argument is not a snapshot, or it is not currently a |
3402 | * filesystem, or we were able to unmount it. Returns error code otherwise. | |
ebe7e575 | 3403 | */ |
d09f25dc | 3404 | int |
13fe0198 | 3405 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3406 | { |
278bee93 | 3407 | int err; |
34dc7c2f | 3408 | |
278bee93 | 3409 | if (strchr(snapname, '@') == NULL) |
d09f25dc | 3410 | return (0); |
34dc7c2f | 3411 | |
278bee93 BB |
3412 | err = zfsctl_snapshot_unmount((char *)snapname, MNT_FORCE); |
3413 | if (err != 0 && err != ENOENT) | |
3414 | return (SET_ERROR(err)); | |
ebe7e575 | 3415 | |
d09f25dc | 3416 | return (0); |
13fe0198 MA |
3417 | } |
3418 | ||
3419 | /* ARGSUSED */ | |
3420 | static int | |
3421 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3422 | { | |
d09f25dc | 3423 | return (zfs_unmount_snap(snapname)); |
13fe0198 MA |
3424 | } |
3425 | ||
3426 | /* | |
3427 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3428 | * in which case it must be unmounted. This routine will do that unmount | |
3429 | * if necessary. | |
3430 | */ | |
3431 | void | |
3432 | zfs_destroy_unmount_origin(const char *fsname) | |
3433 | { | |
3434 | int error; | |
3435 | objset_t *os; | |
3436 | dsl_dataset_t *ds; | |
3437 | ||
3438 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3439 | if (error != 0) | |
3440 | return; | |
3441 | ds = dmu_objset_ds(os); | |
3442 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
eca7b760 | 3443 | char originname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
3444 | dsl_dataset_name(ds->ds_prev, originname); |
3445 | dmu_objset_rele(os, FTAG); | |
d09f25dc | 3446 | (void) zfs_unmount_snap(originname); |
13fe0198 MA |
3447 | } else { |
3448 | dmu_objset_rele(os, FTAG); | |
3449 | } | |
34dc7c2f BB |
3450 | } |
3451 | ||
3452 | /* | |
6f1ffb06 MA |
3453 | * innvl: { |
3454 | * "snaps" -> { snapshot1, snapshot2 } | |
3455 | * (optional boolean) "defer" | |
3456 | * } | |
34dc7c2f | 3457 | * |
6f1ffb06 | 3458 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3459 | */ |
da536844 | 3460 | /* ARGSUSED */ |
34dc7c2f | 3461 | static int |
6f1ffb06 | 3462 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3463 | { |
6f1ffb06 | 3464 | nvlist_t *snaps; |
330d06f9 | 3465 | nvpair_t *pair; |
6f1ffb06 | 3466 | boolean_t defer; |
34dc7c2f | 3467 | |
6f1ffb06 | 3468 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 3469 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3470 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3471 | |
6f1ffb06 MA |
3472 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3473 | pair = nvlist_next_nvpair(snaps, pair)) { | |
da536844 | 3474 | (void) zfs_unmount_snap(nvpair_name(pair)); |
da536844 MA |
3475 | } |
3476 | ||
3477 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3478 | } | |
3479 | ||
3480 | /* | |
3481 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3482 | * All bookmarks must be in the same pool. | |
3483 | * | |
3484 | * innvl: { | |
3485 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3486 | * } | |
3487 | * | |
3488 | * outnvl: bookmark -> error code (int32) | |
3489 | * | |
3490 | */ | |
3491 | /* ARGSUSED */ | |
3492 | static int | |
3493 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3494 | { | |
3495 | nvpair_t *pair, *pair2; | |
3496 | ||
3497 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3498 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
3499 | char *snap_name; | |
3500 | ||
3501 | /* | |
3502 | * Verify the snapshot argument. | |
3503 | */ | |
3504 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3505 | return (SET_ERROR(EINVAL)); | |
3506 | ||
3507 | ||
3508 | /* Verify that the keys (bookmarks) are unique */ | |
3509 | for (pair2 = nvlist_next_nvpair(innvl, pair); | |
3510 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { | |
3511 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3512 | return (SET_ERROR(EINVAL)); | |
3513 | } | |
3514 | } | |
3515 | ||
3516 | return (dsl_bookmark_create(innvl, outnvl)); | |
3517 | } | |
3518 | ||
3519 | /* | |
3520 | * innvl: { | |
3521 | * property 1, property 2, ... | |
3522 | * } | |
3523 | * | |
3524 | * outnvl: { | |
3525 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3526 | * bookmark name 2 -> { property 1, property 2, ... } | |
3527 | * } | |
3528 | * | |
3529 | */ | |
3530 | static int | |
3531 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3532 | { | |
3533 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3534 | } | |
3535 | ||
3536 | /* | |
3537 | * innvl: { | |
3538 | * bookmark name 1, bookmark name 2 | |
3539 | * } | |
3540 | * | |
3541 | * outnvl: bookmark -> error code (int32) | |
3542 | * | |
3543 | */ | |
3544 | static int | |
3545 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3546 | nvlist_t *outnvl) | |
3547 | { | |
3548 | int error, poollen; | |
3549 | nvpair_t *pair; | |
3550 | ||
3551 | poollen = strlen(poolname); | |
3552 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3553 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
330d06f9 | 3554 | const char *name = nvpair_name(pair); |
da536844 | 3555 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3556 | |
330d06f9 | 3557 | /* |
da536844 MA |
3558 | * The bookmark name must contain an #, and the part after it |
3559 | * must contain only valid characters. | |
3560 | */ | |
3561 | if (cp == NULL || | |
3562 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3563 | return (SET_ERROR(EINVAL)); | |
3564 | ||
3565 | /* | |
3566 | * The bookmark must be in the specified pool. | |
330d06f9 | 3567 | */ |
6f1ffb06 | 3568 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3569 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3570 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3571 | } |
3572 | ||
da536844 MA |
3573 | error = dsl_bookmark_destroy(innvl, outnvl); |
3574 | return (error); | |
34dc7c2f BB |
3575 | } |
3576 | ||
3577 | /* | |
3578 | * inputs: | |
3579 | * zc_name name of dataset to destroy | |
3580 | * zc_objset_type type of objset | |
45d1cae3 | 3581 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3582 | * |
3583 | * outputs: none | |
3584 | */ | |
3585 | static int | |
3586 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3587 | { | |
428870ff | 3588 | int err; |
d09f25dc WA |
3589 | |
3590 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
3591 | err = zfs_unmount_snap(zc->zc_name); | |
3592 | if (err != 0) | |
3593 | return (err); | |
3594 | } | |
34dc7c2f | 3595 | |
1b87e0f5 | 3596 | if (strchr(zc->zc_name, '@')) { |
13fe0198 | 3597 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); |
1b87e0f5 | 3598 | } else { |
13fe0198 | 3599 | err = dsl_destroy_head(zc->zc_name); |
1b87e0f5 RS |
3600 | if (err == EEXIST) { |
3601 | /* | |
3602 | * It is possible that the given DS may have | |
3603 | * hidden child (%recv) datasets - "leftovers" | |
3604 | * resulting from the previously interrupted | |
3605 | * 'zfs receive'. | |
3606 | * | |
3607 | * 6 extra bytes for /%recv | |
3608 | */ | |
3609 | char namebuf[ZFS_MAX_DATASET_NAME_LEN + 6]; | |
3610 | ||
3611 | (void) snprintf(namebuf, sizeof (namebuf), | |
3612 | "%s/%s", zc->zc_name, recv_clone_name); | |
3613 | ||
3614 | /* | |
3615 | * Try to remove the hidden child (%recv) and after | |
3616 | * that try to remove the target dataset. | |
3617 | * If the hidden child (%recv) does not exist | |
3618 | * the original error (EEXIST) will be returned | |
3619 | */ | |
3620 | err = dsl_destroy_head(namebuf); | |
3621 | if (err == 0) | |
3622 | err = dsl_destroy_head(zc->zc_name); | |
3623 | else if (err == ENOENT) | |
3624 | err = EEXIST; | |
3625 | } | |
3626 | } | |
a0bd735a | 3627 | |
428870ff | 3628 | return (err); |
34dc7c2f BB |
3629 | } |
3630 | ||
3631 | /* | |
46ba1e59 | 3632 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3633 | * |
46ba1e59 MA |
3634 | * innvl is not used. |
3635 | * | |
3636 | * outnvl: "target" -> name of most recent snapshot | |
3637 | * } | |
34dc7c2f | 3638 | */ |
46ba1e59 | 3639 | /* ARGSUSED */ |
34dc7c2f | 3640 | static int |
46ba1e59 | 3641 | zfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) |
34dc7c2f | 3642 | { |
3558fd73 | 3643 | zfs_sb_t *zsb; |
13fe0198 | 3644 | int error; |
34dc7c2f | 3645 | |
46ba1e59 | 3646 | if (get_zfs_sb(fsname, &zsb) == 0) { |
3558fd73 | 3647 | error = zfs_suspend_fs(zsb); |
34dc7c2f BB |
3648 | if (error == 0) { |
3649 | int resume_err; | |
3650 | ||
46ba1e59 MA |
3651 | error = dsl_dataset_rollback(fsname, zsb, outnvl); |
3652 | resume_err = zfs_resume_fs(zsb, fsname); | |
34dc7c2f | 3653 | error = error ? error : resume_err; |
34dc7c2f | 3654 | } |
2cf7f52b | 3655 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3656 | } else { |
46ba1e59 | 3657 | error = dsl_dataset_rollback(fsname, NULL, outnvl); |
34dc7c2f | 3658 | } |
13fe0198 MA |
3659 | return (error); |
3660 | } | |
34dc7c2f | 3661 | |
13fe0198 MA |
3662 | static int |
3663 | recursive_unmount(const char *fsname, void *arg) | |
3664 | { | |
3665 | const char *snapname = arg; | |
3666 | char *fullname; | |
00fcdee1 | 3667 | int error; |
428870ff | 3668 | |
13fe0198 | 3669 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
00fcdee1 | 3670 | error = zfs_unmount_snap(fullname); |
13fe0198 | 3671 | strfree(fullname); |
00fcdee1 AV |
3672 | |
3673 | return (error); | |
34dc7c2f BB |
3674 | } |
3675 | ||
3676 | /* | |
3677 | * inputs: | |
3678 | * zc_name old name of dataset | |
3679 | * zc_value new name of dataset | |
3680 | * zc_cookie recursive flag (only valid for snapshots) | |
3681 | * | |
3682 | * outputs: none | |
3683 | */ | |
3684 | static int | |
3685 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3686 | { | |
3687 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3688 | char *at; |
34dc7c2f BB |
3689 | |
3690 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3691 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3692 | strchr(zc->zc_value, '%')) | |
2e528b49 | 3693 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3694 | |
13fe0198 MA |
3695 | at = strchr(zc->zc_name, '@'); |
3696 | if (at != NULL) { | |
3697 | /* snaps must be in same fs */ | |
9554185d SH |
3698 | int error; |
3699 | ||
13fe0198 | 3700 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3701 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3702 | *at = '\0'; |
3703 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3704 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3705 | recursive_unmount, at + 1, |
3706 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3707 | if (error != 0) { |
3708 | *at = '@'; | |
13fe0198 | 3709 | return (error); |
9554185d | 3710 | } |
13fe0198 | 3711 | } |
9554185d SH |
3712 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3713 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3714 | *at = '@'; | |
3715 | ||
3716 | return (error); | |
13fe0198 | 3717 | } else { |
ba6a2402 | 3718 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 3719 | } |
34dc7c2f BB |
3720 | } |
3721 | ||
428870ff BB |
3722 | static int |
3723 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3724 | { | |
3725 | const char *propname = nvpair_name(pair); | |
3726 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3727 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3728 | uint64_t intval; | |
3729 | int err; | |
3730 | ||
3731 | if (prop == ZPROP_INVAL) { | |
3732 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3733 | if ((err = zfs_secpolicy_write_perms(dsname, |
3734 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3735 | return (err); |
3736 | return (0); | |
3737 | } | |
3738 | ||
3739 | if (!issnap && zfs_prop_userquota(propname)) { | |
3740 | const char *perm = NULL; | |
3741 | const char *uq_prefix = | |
3742 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3743 | const char *gq_prefix = | |
3744 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
1de321e6 JX |
3745 | const char *uiq_prefix = |
3746 | zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA]; | |
3747 | const char *giq_prefix = | |
3748 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPOBJQUOTA]; | |
428870ff BB |
3749 | |
3750 | if (strncmp(propname, uq_prefix, | |
3751 | strlen(uq_prefix)) == 0) { | |
3752 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
1de321e6 JX |
3753 | } else if (strncmp(propname, uiq_prefix, |
3754 | strlen(uiq_prefix)) == 0) { | |
3755 | perm = ZFS_DELEG_PERM_USEROBJQUOTA; | |
428870ff BB |
3756 | } else if (strncmp(propname, gq_prefix, |
3757 | strlen(gq_prefix)) == 0) { | |
3758 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
1de321e6 JX |
3759 | } else if (strncmp(propname, giq_prefix, |
3760 | strlen(giq_prefix)) == 0) { | |
3761 | perm = ZFS_DELEG_PERM_GROUPOBJQUOTA; | |
428870ff BB |
3762 | } else { |
3763 | /* USERUSED and GROUPUSED are read-only */ | |
2e528b49 | 3764 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3765 | } |
3766 | ||
c65aa5b2 | 3767 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3768 | return (err); |
3769 | return (0); | |
3770 | } | |
3771 | ||
2e528b49 | 3772 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3773 | } |
3774 | ||
3775 | if (issnap) | |
2e528b49 | 3776 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3777 | |
3778 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3779 | /* | |
3780 | * dsl_prop_get_all_impl() returns properties in this | |
3781 | * format. | |
3782 | */ | |
3783 | nvlist_t *attrs; | |
3784 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3785 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3786 | &pair) == 0); | |
3787 | } | |
3788 | ||
3789 | /* | |
3790 | * Check that this value is valid for this pool version | |
3791 | */ | |
3792 | switch (prop) { | |
3793 | case ZFS_PROP_COMPRESSION: | |
3794 | /* | |
3795 | * If the user specified gzip compression, make sure | |
3796 | * the SPA supports it. We ignore any errors here since | |
3797 | * we'll catch them later. | |
3798 | */ | |
f1512ee6 | 3799 | if (nvpair_value_uint64(pair, &intval) == 0) { |
428870ff BB |
3800 | if (intval >= ZIO_COMPRESS_GZIP_1 && |
3801 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3802 | zfs_earlier_version(dsname, | |
3803 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 3804 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3805 | } |
3806 | ||
3807 | if (intval == ZIO_COMPRESS_ZLE && | |
3808 | zfs_earlier_version(dsname, | |
3809 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 3810 | return (SET_ERROR(ENOTSUP)); |
428870ff | 3811 | |
9759c60f | 3812 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
3813 | spa_t *spa; |
3814 | ||
3815 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3816 | return (err); | |
3817 | ||
fa86b5db MA |
3818 | if (!spa_feature_is_enabled(spa, |
3819 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 3820 | spa_close(spa, FTAG); |
2e528b49 | 3821 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
3822 | } |
3823 | spa_close(spa, FTAG); | |
3824 | } | |
3825 | ||
428870ff BB |
3826 | /* |
3827 | * If this is a bootable dataset then | |
3828 | * verify that the compression algorithm | |
3829 | * is supported for booting. We must return | |
3830 | * something other than ENOTSUP since it | |
3831 | * implies a downrev pool version. | |
3832 | */ | |
3833 | if (zfs_is_bootfs(dsname) && | |
3834 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 3835 | return (SET_ERROR(ERANGE)); |
428870ff BB |
3836 | } |
3837 | } | |
3838 | break; | |
3839 | ||
3840 | case ZFS_PROP_COPIES: | |
3841 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 3842 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3843 | break; |
3844 | ||
4cb7b9c5 | 3845 | case ZFS_PROP_VOLBLOCKSIZE: |
f1512ee6 MA |
3846 | case ZFS_PROP_RECORDSIZE: |
3847 | /* Record sizes above 128k need the feature to be enabled */ | |
3848 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
3849 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
3850 | spa_t *spa; | |
3851 | ||
3852 | /* | |
3853 | * If this is a bootable dataset then | |
50c957f7 | 3854 | * we don't allow large (>128K) blocks, |
f1512ee6 MA |
3855 | * because GRUB doesn't support them. |
3856 | */ | |
3857 | if (zfs_is_bootfs(dsname) && | |
3858 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
4b2a3e0c | 3859 | return (SET_ERROR(ERANGE)); |
f1512ee6 MA |
3860 | } |
3861 | ||
3862 | /* | |
3863 | * We don't allow setting the property above 1MB, | |
3864 | * unless the tunable has been changed. | |
3865 | */ | |
3866 | if (intval > zfs_max_recordsize || | |
3867 | intval > SPA_MAXBLOCKSIZE) | |
4b2a3e0c | 3868 | return (SET_ERROR(ERANGE)); |
f1512ee6 MA |
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_BLOCKS)) { | |
3875 | spa_close(spa, FTAG); | |
3876 | return (SET_ERROR(ENOTSUP)); | |
3877 | } | |
3878 | spa_close(spa, FTAG); | |
3879 | } | |
3880 | break; | |
3881 | ||
50c957f7 NB |
3882 | case ZFS_PROP_DNODESIZE: |
3883 | /* Dnode sizes above 512 need the feature to be enabled */ | |
3884 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
3885 | intval != ZFS_DNSIZE_LEGACY) { | |
3886 | spa_t *spa; | |
3887 | ||
3888 | /* | |
3889 | * If this is a bootable dataset then | |
3890 | * we don't allow large (>512B) dnodes, | |
3891 | * because GRUB doesn't support them. | |
3892 | */ | |
3893 | if (zfs_is_bootfs(dsname) && | |
02730c33 | 3894 | intval != ZFS_DNSIZE_LEGACY) { |
50c957f7 NB |
3895 | return (SET_ERROR(EDOM)); |
3896 | } | |
3897 | ||
3898 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3899 | return (err); | |
3900 | ||
3901 | if (!spa_feature_is_enabled(spa, | |
3902 | SPA_FEATURE_LARGE_DNODE)) { | |
3903 | spa_close(spa, FTAG); | |
3904 | return (SET_ERROR(ENOTSUP)); | |
3905 | } | |
3906 | spa_close(spa, FTAG); | |
3907 | } | |
3908 | break; | |
3909 | ||
428870ff BB |
3910 | case ZFS_PROP_SHARESMB: |
3911 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 3912 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3913 | break; |
3914 | ||
3915 | case ZFS_PROP_ACLINHERIT: | |
3916 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3917 | nvpair_value_uint64(pair, &intval) == 0) { | |
3918 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3919 | zfs_earlier_version(dsname, | |
3920 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 3921 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3922 | } |
3923 | break; | |
3c67d83a TH |
3924 | case ZFS_PROP_CHECKSUM: |
3925 | case ZFS_PROP_DEDUP: | |
3926 | { | |
3927 | spa_feature_t feature; | |
3928 | spa_t *spa; | |
3929 | uint64_t intval; | |
3930 | int err; | |
3931 | ||
3932 | /* dedup feature version checks */ | |
3933 | if (prop == ZFS_PROP_DEDUP && | |
3934 | zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
3935 | return (SET_ERROR(ENOTSUP)); | |
3936 | ||
3937 | if (nvpair_value_uint64(pair, &intval) != 0) | |
3938 | return (SET_ERROR(EINVAL)); | |
3939 | ||
3940 | /* check prop value is enabled in features */ | |
4a2e9a17 | 3941 | feature = zio_checksum_to_feature(intval & ZIO_CHECKSUM_MASK); |
3c67d83a TH |
3942 | if (feature == SPA_FEATURE_NONE) |
3943 | break; | |
3944 | ||
3945 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3946 | return (err); | |
3947 | /* | |
3948 | * Salted checksums are not supported on root pools. | |
3949 | */ | |
3950 | if (spa_bootfs(spa) != 0 && | |
3951 | intval < ZIO_CHECKSUM_FUNCTIONS && | |
3952 | (zio_checksum_table[intval].ci_flags & | |
3953 | ZCHECKSUM_FLAG_SALTED)) { | |
3954 | spa_close(spa, FTAG); | |
3955 | return (SET_ERROR(ERANGE)); | |
3956 | } | |
3957 | if (!spa_feature_is_enabled(spa, feature)) { | |
3958 | spa_close(spa, FTAG); | |
3959 | return (SET_ERROR(ENOTSUP)); | |
3960 | } | |
3961 | spa_close(spa, FTAG); | |
3962 | break; | |
3963 | } | |
3964 | ||
e75c13c3 BB |
3965 | default: |
3966 | break; | |
428870ff BB |
3967 | } |
3968 | ||
3969 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3970 | } | |
3971 | ||
3972 | /* | |
3973 | * Removes properties from the given props list that fail permission checks | |
3974 | * needed to clear them and to restore them in case of a receive error. For each | |
3975 | * property, make sure we have both set and inherit permissions. | |
3976 | * | |
3977 | * Returns the first error encountered if any permission checks fail. If the | |
3978 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3979 | * of all the properties that failed a permission check along with the | |
3980 | * corresponding error numbers. The caller is responsible for freeing the | |
3981 | * returned errlist. | |
3982 | * | |
3983 | * If every property checks out successfully, zero is returned and the list | |
3984 | * pointed at by errlist is NULL. | |
3985 | */ | |
3986 | static int | |
3987 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3988 | { |
3989 | zfs_cmd_t *zc; | |
428870ff BB |
3990 | nvpair_t *pair, *next_pair; |
3991 | nvlist_t *errors; | |
3992 | int err, rv = 0; | |
b128c09f BB |
3993 | |
3994 | if (props == NULL) | |
428870ff BB |
3995 | return (0); |
3996 | ||
3997 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3998 | ||
efcd79a8 | 3999 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
680eada9 | 4000 | (void) strlcpy(zc->zc_name, dataset, sizeof (zc->zc_name)); |
428870ff BB |
4001 | pair = nvlist_next_nvpair(props, NULL); |
4002 | while (pair != NULL) { | |
4003 | next_pair = nvlist_next_nvpair(props, pair); | |
4004 | ||
680eada9 | 4005 | (void) strlcpy(zc->zc_value, nvpair_name(pair), |
4006 | sizeof (zc->zc_value)); | |
428870ff | 4007 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || |
6f1ffb06 | 4008 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
4009 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
4010 | VERIFY(nvlist_add_int32(errors, | |
4011 | zc->zc_value, err) == 0); | |
4012 | } | |
4013 | pair = next_pair; | |
b128c09f BB |
4014 | } |
4015 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
4016 | |
4017 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
4018 | nvlist_free(errors); | |
4019 | errors = NULL; | |
4020 | } else { | |
4021 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
4022 | } | |
4023 | ||
4024 | if (errlist == NULL) | |
4025 | nvlist_free(errors); | |
4026 | else | |
4027 | *errlist = errors; | |
4028 | ||
4029 | return (rv); | |
4030 | } | |
4031 | ||
4032 | static boolean_t | |
4033 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
4034 | { | |
4035 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
4036 | /* dsl_prop_get_all_impl() format */ | |
4037 | nvlist_t *attrs; | |
4038 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
4039 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
4040 | &p1) == 0); | |
4041 | } | |
4042 | ||
4043 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
4044 | nvlist_t *attrs; | |
4045 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
4046 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
4047 | &p2) == 0); | |
4048 | } | |
4049 | ||
4050 | if (nvpair_type(p1) != nvpair_type(p2)) | |
4051 | return (B_FALSE); | |
4052 | ||
4053 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
4054 | char *valstr1, *valstr2; | |
4055 | ||
4056 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
4057 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
4058 | return (strcmp(valstr1, valstr2) == 0); | |
4059 | } else { | |
4060 | uint64_t intval1, intval2; | |
4061 | ||
4062 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
4063 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
4064 | return (intval1 == intval2); | |
4065 | } | |
b128c09f BB |
4066 | } |
4067 | ||
428870ff BB |
4068 | /* |
4069 | * Remove properties from props if they are not going to change (as determined | |
4070 | * by comparison with origprops). Remove them from origprops as well, since we | |
4071 | * do not need to clear or restore properties that won't change. | |
4072 | */ | |
4073 | static void | |
4074 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
4075 | { | |
4076 | nvpair_t *pair, *next_pair; | |
4077 | ||
4078 | if (origprops == NULL) | |
4079 | return; /* all props need to be received */ | |
4080 | ||
4081 | pair = nvlist_next_nvpair(props, NULL); | |
4082 | while (pair != NULL) { | |
4083 | const char *propname = nvpair_name(pair); | |
4084 | nvpair_t *match; | |
4085 | ||
4086 | next_pair = nvlist_next_nvpair(props, pair); | |
4087 | ||
4088 | if ((nvlist_lookup_nvpair(origprops, propname, | |
4089 | &match) != 0) || !propval_equals(pair, match)) | |
4090 | goto next; /* need to set received value */ | |
4091 | ||
4092 | /* don't clear the existing received value */ | |
4093 | (void) nvlist_remove_nvpair(origprops, match); | |
4094 | /* don't bother receiving the property */ | |
4095 | (void) nvlist_remove_nvpair(props, pair); | |
4096 | next: | |
4097 | pair = next_pair; | |
4098 | } | |
4099 | } | |
4100 | ||
671c9354 DM |
4101 | /* |
4102 | * Extract properties that cannot be set PRIOR to the receipt of a dataset. | |
4103 | * For example, refquota cannot be set until after the receipt of a dataset, | |
4104 | * because in replication streams, an older/earlier snapshot may exceed the | |
4105 | * refquota. We want to receive the older/earlier snapshot, but setting | |
4106 | * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent | |
4107 | * the older/earlier snapshot from being received (with EDQUOT). | |
4108 | * | |
4109 | * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario. | |
4110 | * | |
4111 | * libzfs will need to be judicious handling errors encountered by props | |
4112 | * extracted by this function. | |
4113 | */ | |
4114 | static nvlist_t * | |
4115 | extract_delay_props(nvlist_t *props) | |
4116 | { | |
4117 | nvlist_t *delayprops; | |
4118 | nvpair_t *nvp, *tmp; | |
4119 | static const zfs_prop_t delayable[] = { ZFS_PROP_REFQUOTA, 0 }; | |
4120 | int i; | |
4121 | ||
4122 | VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
4123 | ||
4124 | for (nvp = nvlist_next_nvpair(props, NULL); nvp != NULL; | |
4125 | nvp = nvlist_next_nvpair(props, nvp)) { | |
4126 | /* | |
4127 | * strcmp() is safe because zfs_prop_to_name() always returns | |
4128 | * a bounded string. | |
4129 | */ | |
4130 | for (i = 0; delayable[i] != 0; i++) { | |
4131 | if (strcmp(zfs_prop_to_name(delayable[i]), | |
4132 | nvpair_name(nvp)) == 0) { | |
4133 | break; | |
4134 | } | |
4135 | } | |
4136 | if (delayable[i] != 0) { | |
4137 | tmp = nvlist_prev_nvpair(props, nvp); | |
4138 | VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0); | |
4139 | VERIFY(nvlist_remove_nvpair(props, nvp) == 0); | |
4140 | nvp = tmp; | |
4141 | } | |
4142 | } | |
4143 | ||
4144 | if (nvlist_empty(delayprops)) { | |
4145 | nvlist_free(delayprops); | |
4146 | delayprops = NULL; | |
4147 | } | |
4148 | return (delayprops); | |
4149 | } | |
4150 | ||
428870ff BB |
4151 | #ifdef DEBUG |
4152 | static boolean_t zfs_ioc_recv_inject_err; | |
4153 | #endif | |
4154 | ||
34dc7c2f | 4155 | /* |
1bf3bf0e GN |
4156 | * nvlist 'errors' is always allocated. It will contain descriptions of |
4157 | * encountered errors, if any. It's the callers responsibility to free. | |
34dc7c2f BB |
4158 | */ |
4159 | static int | |
43e52edd BB |
4160 | zfs_ioc_recv_impl(char *tofs, char *tosnap, char *origin, |
4161 | nvlist_t *props, boolean_t force, boolean_t resumable, int input_fd, | |
4162 | dmu_replay_record_t *begin_record, int cleanup_fd, uint64_t *read_bytes, | |
4163 | uint64_t *errflags, uint64_t *action_handle, nvlist_t **errors) | |
34dc7c2f | 4164 | { |
34dc7c2f | 4165 | dmu_recv_cookie_t drc; |
428870ff BB |
4166 | int error = 0; |
4167 | int props_error = 0; | |
34dc7c2f | 4168 | offset_t off; |
671c9354 | 4169 | nvlist_t *delayprops = NULL; /* sent properties applied post-receive */ |
43e52edd | 4170 | nvlist_t *origprops = NULL; /* existing properties */ |
428870ff | 4171 | boolean_t first_recvd_props = B_FALSE; |
43e52edd | 4172 | file_t *input_fp; |
34dc7c2f | 4173 | |
1bf3bf0e GN |
4174 | *read_bytes = 0; |
4175 | *errflags = 0; | |
4176 | *errors = fnvlist_alloc(); | |
4177 | ||
43e52edd BB |
4178 | input_fp = getf(input_fd); |
4179 | if (input_fp == NULL) | |
2e528b49 | 4180 | return (SET_ERROR(EBADF)); |
13fe0198 MA |
4181 | |
4182 | error = dmu_recv_begin(tofs, tosnap, | |
43e52edd | 4183 | begin_record, force, resumable, origin, &drc); |
13fe0198 MA |
4184 | if (error != 0) |
4185 | goto out; | |
4186 | ||
4187 | /* | |
4188 | * Set properties before we receive the stream so that they are applied | |
4189 | * to the new data. Note that we must call dmu_recv_stream() if | |
4190 | * dmu_recv_begin() succeeds. | |
4191 | */ | |
4192 | if (props != NULL && !drc.drc_newfs) { | |
4193 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= | |
4194 | SPA_VERSION_RECVD_PROPS && | |
4195 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4196 | first_recvd_props = B_TRUE; |
428870ff | 4197 | |
b128c09f | 4198 | /* |
428870ff BB |
4199 | * If new received properties are supplied, they are to |
4200 | * completely replace the existing received properties, so stash | |
4201 | * away the existing ones. | |
b128c09f | 4202 | */ |
13fe0198 | 4203 | if (dsl_prop_get_received(tofs, &origprops) == 0) { |
428870ff BB |
4204 | nvlist_t *errlist = NULL; |
4205 | /* | |
4206 | * Don't bother writing a property if its value won't | |
4207 | * change (and avoid the unnecessary security checks). | |
4208 | * | |
4209 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4210 | * special case where we blow away all local properties | |
4211 | * regardless. | |
4212 | */ | |
4213 | if (!first_recvd_props) | |
4214 | props_reduce(props, origprops); | |
13fe0198 | 4215 | if (zfs_check_clearable(tofs, origprops, &errlist) != 0) |
43e52edd | 4216 | (void) nvlist_merge(*errors, errlist, 0); |
428870ff | 4217 | nvlist_free(errlist); |
b128c09f | 4218 | |
13fe0198 MA |
4219 | if (clear_received_props(tofs, origprops, |
4220 | first_recvd_props ? NULL : props) != 0) | |
43e52edd | 4221 | *errflags |= ZPROP_ERR_NOCLEAR; |
13fe0198 | 4222 | } else { |
43e52edd | 4223 | *errflags |= ZPROP_ERR_NOCLEAR; |
428870ff | 4224 | } |
13fe0198 MA |
4225 | } |
4226 | ||
4227 | if (props != NULL) { | |
4228 | props_error = dsl_prop_set_hasrecvd(tofs); | |
428870ff | 4229 | |
13fe0198 | 4230 | if (props_error == 0) { |
671c9354 | 4231 | delayprops = extract_delay_props(props); |
13fe0198 | 4232 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, |
43e52edd | 4233 | props, *errors); |
13fe0198 | 4234 | } |
428870ff BB |
4235 | } |
4236 | ||
43e52edd BB |
4237 | off = input_fp->f_offset; |
4238 | error = dmu_recv_stream(&drc, input_fp->f_vnode, &off, cleanup_fd, | |
4239 | action_handle); | |
34dc7c2f | 4240 | |
45d1cae3 | 4241 | if (error == 0) { |
3558fd73 | 4242 | zfs_sb_t *zsb = NULL; |
b128c09f | 4243 | |
3558fd73 | 4244 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
4245 | /* online recv */ |
4246 | int end_err; | |
b128c09f | 4247 | |
3558fd73 | 4248 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
4249 | /* |
4250 | * If the suspend fails, then the recv_end will | |
4251 | * likely also fail, and clean up after itself. | |
4252 | */ | |
831baf06 | 4253 | end_err = dmu_recv_end(&drc, zsb); |
428870ff | 4254 | if (error == 0) |
3558fd73 | 4255 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 4256 | error = error ? error : end_err; |
2cf7f52b | 4257 | deactivate_super(zsb->z_sb); |
b128c09f | 4258 | } else { |
831baf06 | 4259 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4260 | } |
671c9354 DM |
4261 | |
4262 | /* Set delayed properties now, after we're done receiving. */ | |
4263 | if (delayprops != NULL && error == 0) { | |
4264 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
43e52edd | 4265 | delayprops, *errors); |
671c9354 DM |
4266 | } |
4267 | } | |
4268 | ||
4269 | if (delayprops != NULL) { | |
4270 | /* | |
4271 | * Merge delayed props back in with initial props, in case | |
4272 | * we're DEBUG and zfs_ioc_recv_inject_err is set (which means | |
4273 | * we have to make sure clear_received_props() includes | |
4274 | * the delayed properties). | |
4275 | * | |
4276 | * Since zfs_ioc_recv_inject_err is only in DEBUG kernels, | |
4277 | * using ASSERT() will be just like a VERIFY. | |
4278 | */ | |
4279 | ASSERT(nvlist_merge(props, delayprops, 0) == 0); | |
4280 | nvlist_free(delayprops); | |
4281 | } | |
4282 | ||
34dc7c2f | 4283 | |
43e52edd BB |
4284 | *read_bytes = off - input_fp->f_offset; |
4285 | if (VOP_SEEK(input_fp->f_vnode, input_fp->f_offset, &off, NULL) == 0) | |
02730c33 | 4286 | input_fp->f_offset = off; |
34dc7c2f | 4287 | |
428870ff BB |
4288 | #ifdef DEBUG |
4289 | if (zfs_ioc_recv_inject_err) { | |
4290 | zfs_ioc_recv_inject_err = B_FALSE; | |
4291 | error = 1; | |
4292 | } | |
4293 | #endif | |
ba6a2402 | 4294 | |
b128c09f BB |
4295 | /* |
4296 | * On error, restore the original props. | |
4297 | */ | |
13fe0198 MA |
4298 | if (error != 0 && props != NULL && !drc.drc_newfs) { |
4299 | if (clear_received_props(tofs, props, NULL) != 0) { | |
4300 | /* | |
4301 | * We failed to clear the received properties. | |
4302 | * Since we may have left a $recvd value on the | |
4303 | * system, we can't clear the $hasrecvd flag. | |
4304 | */ | |
43e52edd | 4305 | *errflags |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4306 | } else if (first_recvd_props) { |
4307 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4308 | } |
4309 | ||
4310 | if (origprops == NULL && !drc.drc_newfs) { | |
4311 | /* We failed to stash the original properties. */ | |
43e52edd | 4312 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff BB |
4313 | } |
4314 | ||
4315 | /* | |
4316 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4317 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4e33ba4c | 4318 | * explicitly if we're restoring local properties cleared in the |
428870ff BB |
4319 | * first new-style receive. |
4320 | */ | |
4321 | if (origprops != NULL && | |
4322 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
4323 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
4324 | origprops, NULL) != 0) { | |
4325 | /* | |
4326 | * We stashed the original properties but failed to | |
4327 | * restore them. | |
4328 | */ | |
43e52edd | 4329 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff | 4330 | } |
b128c09f BB |
4331 | } |
4332 | out: | |
43e52edd | 4333 | releasef(input_fd); |
b128c09f | 4334 | nvlist_free(origprops); |
428870ff BB |
4335 | |
4336 | if (error == 0) | |
4337 | error = props_error; | |
4338 | ||
34dc7c2f BB |
4339 | return (error); |
4340 | } | |
4341 | ||
43e52edd BB |
4342 | /* |
4343 | * inputs: | |
4344 | * zc_name name of containing filesystem (unused) | |
4345 | * zc_nvlist_src{_size} nvlist of properties to apply | |
4346 | * zc_value name of snapshot to create | |
4347 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
4348 | * zc_cookie file descriptor to recv from | |
4349 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
4350 | * zc_guid force flag | |
4351 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4352 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
4353 | * | |
4354 | * outputs: | |
4355 | * zc_cookie number of bytes read | |
4356 | * zc_obj zprop_errflags_t | |
4357 | * zc_action_handle handle for this guid/ds mapping | |
4358 | * zc_nvlist_dst{_size} error for each unapplied received property | |
4359 | */ | |
4360 | static int | |
4361 | zfs_ioc_recv(zfs_cmd_t *zc) | |
4362 | { | |
4363 | dmu_replay_record_t begin_record; | |
4364 | nvlist_t *errors = NULL; | |
4365 | nvlist_t *props = NULL; | |
4366 | char *origin = NULL; | |
4367 | char *tosnap; | |
eca7b760 | 4368 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4369 | int error = 0; |
4370 | ||
4371 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
4372 | strchr(zc->zc_value, '@') == NULL || | |
4373 | strchr(zc->zc_value, '%')) | |
4374 | return (SET_ERROR(EINVAL)); | |
4375 | ||
30f3f2e1 | 4376 | (void) strlcpy(tofs, zc->zc_value, sizeof (tofs)); |
43e52edd BB |
4377 | tosnap = strchr(tofs, '@'); |
4378 | *tosnap++ = '\0'; | |
4379 | ||
4380 | if (zc->zc_nvlist_src != 0 && | |
4381 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
4382 | zc->zc_iflags, &props)) != 0) | |
4383 | return (error); | |
4384 | ||
4385 | if (zc->zc_string[0]) | |
4386 | origin = zc->zc_string; | |
4387 | ||
4388 | begin_record.drr_type = DRR_BEGIN; | |
4389 | begin_record.drr_payloadlen = 0; | |
4390 | begin_record.drr_u.drr_begin = zc->zc_begin_record; | |
4391 | ||
4392 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, props, zc->zc_guid, | |
4393 | B_FALSE, zc->zc_cookie, &begin_record, zc->zc_cleanup_fd, | |
4394 | &zc->zc_cookie, &zc->zc_obj, &zc->zc_action_handle, &errors); | |
4395 | nvlist_free(props); | |
4396 | ||
4397 | /* | |
4398 | * Now that all props, initial and delayed, are set, report the prop | |
4399 | * errors to the caller. | |
4400 | */ | |
4401 | if (zc->zc_nvlist_dst_size != 0 && errors != NULL && | |
4402 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4403 | put_nvlist(zc, errors) != 0)) { | |
4404 | /* | |
4405 | * Caller made zc->zc_nvlist_dst less than the minimum expected | |
4406 | * size or supplied an invalid address. | |
4407 | */ | |
4408 | error = SET_ERROR(EINVAL); | |
4409 | } | |
4410 | ||
4411 | nvlist_free(errors); | |
4412 | ||
4413 | return (error); | |
4414 | } | |
4415 | ||
4416 | /* | |
4417 | * innvl: { | |
4418 | * "snapname" -> full name of the snapshot to create | |
4419 | * (optional) "props" -> properties to set (nvlist) | |
4420 | * (optional) "origin" -> name of clone origin (DRR_FLAG_CLONE) | |
4421 | * "begin_record" -> non-byteswapped dmu_replay_record_t | |
4422 | * "input_fd" -> file descriptor to read stream from (int32) | |
4423 | * (optional) "force" -> force flag (value ignored) | |
4424 | * (optional) "resumable" -> resumable flag (value ignored) | |
4425 | * (optional) "cleanup_fd" -> cleanup-on-exit file descriptor | |
4426 | * (optional) "action_handle" -> handle for this guid/ds mapping | |
4427 | * } | |
4428 | * | |
4429 | * outnvl: { | |
4430 | * "read_bytes" -> number of bytes read | |
4431 | * "error_flags" -> zprop_errflags_t | |
4432 | * "action_handle" -> handle for this guid/ds mapping | |
4433 | * "errors" -> error for each unapplied received property (nvlist) | |
4434 | * } | |
4435 | */ | |
4436 | static int | |
4437 | zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
4438 | { | |
4439 | dmu_replay_record_t *begin_record; | |
4440 | uint_t begin_record_size; | |
4441 | nvlist_t *errors = NULL; | |
4442 | nvlist_t *props = NULL; | |
4443 | char *snapname = NULL; | |
4444 | char *origin = NULL; | |
4445 | char *tosnap; | |
eca7b760 | 4446 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4447 | boolean_t force; |
4448 | boolean_t resumable; | |
4449 | uint64_t action_handle = 0; | |
4450 | uint64_t read_bytes = 0; | |
4451 | uint64_t errflags = 0; | |
4452 | int input_fd = -1; | |
4453 | int cleanup_fd = -1; | |
4454 | int error; | |
4455 | ||
4456 | error = nvlist_lookup_string(innvl, "snapname", &snapname); | |
4457 | if (error != 0) | |
4458 | return (SET_ERROR(EINVAL)); | |
4459 | ||
4460 | if (dataset_namecheck(snapname, NULL, NULL) != 0 || | |
4461 | strchr(snapname, '@') == NULL || | |
4462 | strchr(snapname, '%')) | |
4463 | return (SET_ERROR(EINVAL)); | |
4464 | ||
4465 | (void) strcpy(tofs, snapname); | |
4466 | tosnap = strchr(tofs, '@'); | |
4467 | *tosnap++ = '\0'; | |
4468 | ||
4469 | error = nvlist_lookup_string(innvl, "origin", &origin); | |
4470 | if (error && error != ENOENT) | |
4471 | return (error); | |
4472 | ||
4473 | error = nvlist_lookup_byte_array(innvl, "begin_record", | |
02730c33 | 4474 | (uchar_t **)&begin_record, &begin_record_size); |
43e52edd BB |
4475 | if (error != 0 || begin_record_size != sizeof (*begin_record)) |
4476 | return (SET_ERROR(EINVAL)); | |
4477 | ||
4478 | error = nvlist_lookup_int32(innvl, "input_fd", &input_fd); | |
4479 | if (error != 0) | |
4480 | return (SET_ERROR(EINVAL)); | |
4481 | ||
4482 | force = nvlist_exists(innvl, "force"); | |
4483 | resumable = nvlist_exists(innvl, "resumable"); | |
4484 | ||
4485 | error = nvlist_lookup_int32(innvl, "cleanup_fd", &cleanup_fd); | |
4486 | if (error && error != ENOENT) | |
4487 | return (error); | |
4488 | ||
4489 | error = nvlist_lookup_uint64(innvl, "action_handle", &action_handle); | |
4490 | if (error && error != ENOENT) | |
4491 | return (error); | |
4492 | ||
4493 | error = nvlist_lookup_nvlist(innvl, "props", &props); | |
4494 | if (error && error != ENOENT) | |
4495 | return (error); | |
4496 | ||
4497 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, props, force, | |
4498 | resumable, input_fd, begin_record, cleanup_fd, &read_bytes, | |
4499 | &errflags, &action_handle, &errors); | |
4500 | ||
4501 | fnvlist_add_uint64(outnvl, "read_bytes", read_bytes); | |
4502 | fnvlist_add_uint64(outnvl, "error_flags", errflags); | |
4503 | fnvlist_add_uint64(outnvl, "action_handle", action_handle); | |
4504 | fnvlist_add_nvlist(outnvl, "errors", errors); | |
4505 | ||
4506 | nvlist_free(errors); | |
4507 | nvlist_free(props); | |
4508 | ||
4509 | return (error); | |
4510 | } | |
4511 | ||
34dc7c2f BB |
4512 | /* |
4513 | * inputs: | |
4514 | * zc_name name of snapshot to send | |
34dc7c2f | 4515 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4516 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4517 | * zc_sendobj objsetid of snapshot to send | |
4518 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4519 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4520 | * output size in zc_objset_type. | |
f1512ee6 | 4521 | * zc_flags lzc_send_flags |
34dc7c2f | 4522 | * |
da536844 MA |
4523 | * outputs: |
4524 | * zc_objset_type estimated size, if zc_guid is set | |
34dc7c2f BB |
4525 | */ |
4526 | static int | |
4527 | zfs_ioc_send(zfs_cmd_t *zc) | |
4528 | { | |
34dc7c2f BB |
4529 | int error; |
4530 | offset_t off; | |
330d06f9 | 4531 | boolean_t estimate = (zc->zc_guid != 0); |
9b67f605 | 4532 | boolean_t embedok = (zc->zc_flags & 0x1); |
f1512ee6 | 4533 | boolean_t large_block_ok = (zc->zc_flags & 0x2); |
2aa34383 | 4534 | boolean_t compressok = (zc->zc_flags & 0x4); |
34dc7c2f | 4535 | |
13fe0198 MA |
4536 | if (zc->zc_obj != 0) { |
4537 | dsl_pool_t *dp; | |
4538 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4539 | |
13fe0198 MA |
4540 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4541 | if (error != 0) | |
572e2857 | 4542 | return (error); |
13fe0198 MA |
4543 | |
4544 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4545 | if (error != 0) { | |
4546 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4547 | return (error); |
4548 | } | |
13fe0198 MA |
4549 | |
4550 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
d683ddbb JG |
4551 | zc->zc_fromobj = |
4552 | dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj; | |
13fe0198 MA |
4553 | dsl_dataset_rele(tosnap, FTAG); |
4554 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4555 | } |
4556 | ||
13fe0198 MA |
4557 | if (estimate) { |
4558 | dsl_pool_t *dp; | |
4559 | dsl_dataset_t *tosnap; | |
4560 | dsl_dataset_t *fromsnap = NULL; | |
4561 | ||
4562 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4563 | if (error != 0) | |
4564 | return (error); | |
6f1ffb06 | 4565 | |
13fe0198 MA |
4566 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); |
4567 | if (error != 0) { | |
4568 | dsl_pool_rele(dp, FTAG); | |
4569 | return (error); | |
6f1ffb06 MA |
4570 | } |
4571 | ||
13fe0198 MA |
4572 | if (zc->zc_fromobj != 0) { |
4573 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4574 | FTAG, &fromsnap); | |
4575 | if (error != 0) { | |
4576 | dsl_dataset_rele(tosnap, FTAG); | |
4577 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4578 | return (error); |
4579 | } | |
4580 | } | |
34dc7c2f | 4581 | |
2aa34383 | 4582 | error = dmu_send_estimate(tosnap, fromsnap, compressok, |
330d06f9 | 4583 | &zc->zc_objset_type); |
13fe0198 MA |
4584 | |
4585 | if (fromsnap != NULL) | |
4586 | dsl_dataset_rele(fromsnap, FTAG); | |
4587 | dsl_dataset_rele(tosnap, FTAG); | |
4588 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4589 | } else { |
4590 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4591 | if (fp == NULL) |
2e528b49 | 4592 | return (SET_ERROR(EBADF)); |
34dc7c2f | 4593 | |
330d06f9 | 4594 | off = fp->f_offset; |
13fe0198 | 4595 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
2aa34383 | 4596 | zc->zc_fromobj, embedok, large_block_ok, compressok, |
f1512ee6 | 4597 | zc->zc_cookie, fp->f_vnode, &off); |
34dc7c2f | 4598 | |
330d06f9 MA |
4599 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4600 | fp->f_offset = off; | |
4601 | releasef(zc->zc_cookie); | |
4602 | } | |
34dc7c2f BB |
4603 | return (error); |
4604 | } | |
4605 | ||
37abac6d BP |
4606 | /* |
4607 | * inputs: | |
4608 | * zc_name name of snapshot on which to report progress | |
4609 | * zc_cookie file descriptor of send stream | |
4610 | * | |
4611 | * outputs: | |
4612 | * zc_cookie number of bytes written in send stream thus far | |
4613 | */ | |
4614 | static int | |
4615 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4616 | { | |
13fe0198 | 4617 | dsl_pool_t *dp; |
37abac6d BP |
4618 | dsl_dataset_t *ds; |
4619 | dmu_sendarg_t *dsp = NULL; | |
4620 | int error; | |
4621 | ||
13fe0198 MA |
4622 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4623 | if (error != 0) | |
37abac6d BP |
4624 | return (error); |
4625 | ||
13fe0198 MA |
4626 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4627 | if (error != 0) { | |
4628 | dsl_pool_rele(dp, FTAG); | |
4629 | return (error); | |
4630 | } | |
4631 | ||
37abac6d BP |
4632 | mutex_enter(&ds->ds_sendstream_lock); |
4633 | ||
4634 | /* | |
4635 | * Iterate over all the send streams currently active on this dataset. | |
4636 | * If there's one which matches the specified file descriptor _and_ the | |
4637 | * stream was started by the current process, return the progress of | |
4638 | * that stream. | |
4639 | */ | |
4640 | ||
4641 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4642 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4643 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4644 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4645 | break; | |
4646 | } | |
4647 | ||
4648 | if (dsp != NULL) | |
4649 | zc->zc_cookie = *(dsp->dsa_off); | |
4650 | else | |
2e528b49 | 4651 | error = SET_ERROR(ENOENT); |
37abac6d BP |
4652 | |
4653 | mutex_exit(&ds->ds_sendstream_lock); | |
4654 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4655 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4656 | return (error); |
4657 | } | |
4658 | ||
34dc7c2f BB |
4659 | static int |
4660 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4661 | { | |
4662 | int id, error; | |
4663 | ||
4664 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4665 | &zc->zc_inject_record); | |
4666 | ||
4667 | if (error == 0) | |
4668 | zc->zc_guid = (uint64_t)id; | |
4669 | ||
4670 | return (error); | |
4671 | } | |
4672 | ||
4673 | static int | |
4674 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4675 | { | |
4676 | return (zio_clear_fault((int)zc->zc_guid)); | |
4677 | } | |
4678 | ||
4679 | static int | |
4680 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4681 | { | |
4682 | int id = (int)zc->zc_guid; | |
4683 | int error; | |
4684 | ||
4685 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4686 | &zc->zc_inject_record); | |
4687 | ||
4688 | zc->zc_guid = id; | |
4689 | ||
4690 | return (error); | |
4691 | } | |
4692 | ||
4693 | static int | |
4694 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4695 | { | |
4696 | spa_t *spa; | |
4697 | int error; | |
4698 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4699 | ||
4700 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4701 | return (error); | |
4702 | ||
4703 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4704 | &count); | |
4705 | if (error == 0) | |
4706 | zc->zc_nvlist_dst_size = count; | |
4707 | else | |
4708 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4709 | ||
4710 | spa_close(spa, FTAG); | |
4711 | ||
4712 | return (error); | |
4713 | } | |
4714 | ||
4715 | static int | |
4716 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4717 | { | |
4718 | spa_t *spa; | |
4719 | vdev_t *vd; | |
34dc7c2f BB |
4720 | int error; |
4721 | ||
34dc7c2f | 4722 | /* |
b128c09f | 4723 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4724 | */ |
b128c09f BB |
4725 | mutex_enter(&spa_namespace_lock); |
4726 | spa = spa_lookup(zc->zc_name); | |
4727 | if (spa == NULL) { | |
4728 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 4729 | return (SET_ERROR(EIO)); |
b128c09f | 4730 | } |
428870ff | 4731 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4732 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4733 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4734 | } |
428870ff | 4735 | spa->spa_last_open_failed = 0; |
b128c09f | 4736 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4737 | |
428870ff BB |
4738 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4739 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4740 | } else { | |
4741 | nvlist_t *policy; | |
4742 | nvlist_t *config = NULL; | |
4743 | ||
b8864a23 | 4744 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 4745 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4746 | |
4747 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4748 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4749 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4750 | policy, &config); | |
4751 | if (config != NULL) { | |
572e2857 BB |
4752 | int err; |
4753 | ||
4754 | if ((err = put_nvlist(zc, config)) != 0) | |
4755 | error = err; | |
428870ff BB |
4756 | nvlist_free(config); |
4757 | } | |
4758 | nvlist_free(policy); | |
4759 | } | |
4760 | } | |
4761 | ||
13fe0198 | 4762 | if (error != 0) |
b128c09f BB |
4763 | return (error); |
4764 | ||
428870ff | 4765 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4766 | |
4767 | if (zc->zc_guid == 0) { | |
4768 | vd = NULL; | |
b128c09f BB |
4769 | } else { |
4770 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4771 | if (vd == NULL) { |
b128c09f | 4772 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 4773 | spa_close(spa, FTAG); |
2e528b49 | 4774 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
4775 | } |
4776 | } | |
4777 | ||
b128c09f BB |
4778 | vdev_clear(spa, vd); |
4779 | ||
4780 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4781 | |
b128c09f BB |
4782 | /* |
4783 | * Resume any suspended I/Os. | |
4784 | */ | |
9babb374 | 4785 | if (zio_resume(spa) != 0) |
2e528b49 | 4786 | error = SET_ERROR(EIO); |
34dc7c2f BB |
4787 | |
4788 | spa_close(spa, FTAG); | |
4789 | ||
9babb374 | 4790 | return (error); |
34dc7c2f BB |
4791 | } |
4792 | ||
1bd201e7 CS |
4793 | static int |
4794 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4795 | { | |
4796 | spa_t *spa; | |
4797 | int error; | |
4798 | ||
4799 | error = spa_open(zc->zc_name, &spa, FTAG); | |
13fe0198 | 4800 | if (error != 0) |
1bd201e7 CS |
4801 | return (error); |
4802 | ||
4803 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
4804 | |
4805 | /* | |
4806 | * If a resilver is already in progress then set the | |
4807 | * spa_scrub_reopen flag to B_TRUE so that we don't restart | |
4808 | * the scan as a side effect of the reopen. Otherwise, let | |
4809 | * vdev_open() decided if a resilver is required. | |
4810 | */ | |
4811 | spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); | |
1bd201e7 | 4812 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
4813 | spa->spa_scrub_reopen = B_FALSE; |
4814 | ||
1bd201e7 CS |
4815 | (void) spa_vdev_state_exit(spa, NULL, 0); |
4816 | spa_close(spa, FTAG); | |
4817 | return (0); | |
4818 | } | |
34dc7c2f BB |
4819 | /* |
4820 | * inputs: | |
4821 | * zc_name name of filesystem | |
4822 | * zc_value name of origin snapshot | |
4823 | * | |
428870ff BB |
4824 | * outputs: |
4825 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4826 | */ |
4827 | static int | |
4828 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4829 | { | |
4830 | char *cp; | |
4831 | ||
4832 | /* | |
4833 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4834 | * it's easier. | |
4835 | */ | |
4836 | cp = strchr(zc->zc_value, '@'); | |
4837 | if (cp) | |
4838 | *cp = '\0'; | |
4839 | (void) dmu_objset_find(zc->zc_value, | |
13fe0198 | 4840 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 4841 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4842 | } |
4843 | ||
9babb374 BB |
4844 | /* |
4845 | * Retrieve a single {user|group}{used|quota}@... property. | |
4846 | * | |
4847 | * inputs: | |
4848 | * zc_name name of filesystem | |
4849 | * zc_objset_type zfs_userquota_prop_t | |
4850 | * zc_value domain name (eg. "S-1-234-567-89") | |
4851 | * zc_guid RID/UID/GID | |
4852 | * | |
4853 | * outputs: | |
4854 | * zc_cookie property value | |
4855 | */ | |
4856 | static int | |
4857 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4858 | { | |
3558fd73 | 4859 | zfs_sb_t *zsb; |
9babb374 BB |
4860 | int error; |
4861 | ||
4862 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 4863 | return (SET_ERROR(EINVAL)); |
9babb374 | 4864 | |
3558fd73 | 4865 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4866 | if (error != 0) |
9babb374 BB |
4867 | return (error); |
4868 | ||
3558fd73 | 4869 | error = zfs_userspace_one(zsb, |
9babb374 | 4870 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4871 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4872 | |
4873 | return (error); | |
4874 | } | |
4875 | ||
4876 | /* | |
4877 | * inputs: | |
4878 | * zc_name name of filesystem | |
4879 | * zc_cookie zap cursor | |
4880 | * zc_objset_type zfs_userquota_prop_t | |
4881 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4882 | * | |
4883 | * outputs: | |
4884 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4885 | * zc_cookie zap cursor | |
4886 | */ | |
4887 | static int | |
4888 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4889 | { | |
3558fd73 | 4890 | zfs_sb_t *zsb; |
428870ff | 4891 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4892 | int error; |
4893 | void *buf; | |
428870ff BB |
4894 | |
4895 | if (bufsize <= 0) | |
2e528b49 | 4896 | return (SET_ERROR(ENOMEM)); |
9babb374 | 4897 | |
3558fd73 | 4898 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4899 | if (error != 0) |
9babb374 BB |
4900 | return (error); |
4901 | ||
2b8cad61 | 4902 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4903 | |
3558fd73 | 4904 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4905 | buf, &zc->zc_nvlist_dst_size); |
4906 | ||
4907 | if (error == 0) { | |
4908 | error = xcopyout(buf, | |
4909 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4910 | zc->zc_nvlist_dst_size); | |
4911 | } | |
2b8cad61 | 4912 | vmem_free(buf, bufsize); |
3558fd73 | 4913 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4914 | |
4915 | return (error); | |
4916 | } | |
4917 | ||
4918 | /* | |
4919 | * inputs: | |
4920 | * zc_name name of filesystem | |
4921 | * | |
4922 | * outputs: | |
4923 | * none | |
4924 | */ | |
4925 | static int | |
4926 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4927 | { | |
4928 | objset_t *os; | |
428870ff | 4929 | int error = 0; |
3558fd73 | 4930 | zfs_sb_t *zsb; |
9babb374 | 4931 | |
3558fd73 BB |
4932 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4933 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4934 | /* |
4935 | * If userused is not enabled, it may be because the | |
4936 | * objset needs to be closed & reopened (to grow the | |
4937 | * objset_phys_t). Suspend/resume the fs will do that. | |
4938 | */ | |
3558fd73 | 4939 | error = zfs_suspend_fs(zsb); |
831baf06 KW |
4940 | if (error == 0) { |
4941 | dmu_objset_refresh_ownership(zsb->z_os, | |
4942 | zsb); | |
3558fd73 | 4943 | error = zfs_resume_fs(zsb, zc->zc_name); |
831baf06 | 4944 | } |
9babb374 BB |
4945 | } |
4946 | if (error == 0) | |
3558fd73 | 4947 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4948 | deactivate_super(zsb->z_sb); |
9babb374 | 4949 | } else { |
428870ff BB |
4950 | /* XXX kind of reading contents without owning */ |
4951 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4952 | if (error != 0) |
9babb374 BB |
4953 | return (error); |
4954 | ||
4955 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4956 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4957 | } |
4958 | ||
4959 | return (error); | |
4960 | } | |
4961 | ||
1de321e6 JX |
4962 | /* |
4963 | * inputs: | |
4964 | * zc_name name of filesystem | |
4965 | * | |
4966 | * outputs: | |
4967 | * none | |
4968 | */ | |
4969 | static int | |
4970 | zfs_ioc_userobjspace_upgrade(zfs_cmd_t *zc) | |
4971 | { | |
4972 | objset_t *os; | |
4973 | int error; | |
4974 | ||
4975 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
4976 | if (error != 0) | |
4977 | return (error); | |
4978 | ||
4979 | dsl_dataset_long_hold(dmu_objset_ds(os), FTAG); | |
4980 | dsl_pool_rele(dmu_objset_pool(os), FTAG); | |
4981 | ||
4982 | if (dmu_objset_userobjspace_upgradable(os)) { | |
4983 | mutex_enter(&os->os_upgrade_lock); | |
4984 | if (os->os_upgrade_id == 0) { | |
4985 | /* clear potential error code and retry */ | |
4986 | os->os_upgrade_status = 0; | |
4987 | mutex_exit(&os->os_upgrade_lock); | |
4988 | ||
4989 | dmu_objset_userobjspace_upgrade(os); | |
4990 | } else { | |
4991 | mutex_exit(&os->os_upgrade_lock); | |
4992 | } | |
4993 | ||
4994 | taskq_wait_id(os->os_spa->spa_upgrade_taskq, os->os_upgrade_id); | |
4995 | error = os->os_upgrade_status; | |
4996 | } | |
4997 | ||
4998 | dsl_dataset_long_rele(dmu_objset_ds(os), FTAG); | |
4999 | dsl_dataset_rele(dmu_objset_ds(os), FTAG); | |
5000 | ||
5001 | return (error); | |
5002 | } | |
5003 | ||
34dc7c2f BB |
5004 | static int |
5005 | zfs_ioc_share(zfs_cmd_t *zc) | |
5006 | { | |
2e528b49 | 5007 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
5008 | } |
5009 | ||
9babb374 BB |
5010 | ace_t full_access[] = { |
5011 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
5012 | }; | |
5013 | ||
572e2857 BB |
5014 | /* |
5015 | * inputs: | |
5016 | * zc_name name of containing filesystem | |
5017 | * zc_obj object # beyond which we want next in-use object # | |
5018 | * | |
5019 | * outputs: | |
5020 | * zc_obj next in-use object # | |
5021 | */ | |
5022 | static int | |
5023 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
5024 | { | |
5025 | objset_t *os = NULL; | |
5026 | int error; | |
5027 | ||
5028 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 5029 | if (error != 0) |
572e2857 BB |
5030 | return (error); |
5031 | ||
7290cd3c | 5032 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0); |
572e2857 BB |
5033 | |
5034 | dmu_objset_rele(os, FTAG); | |
5035 | return (error); | |
5036 | } | |
5037 | ||
5038 | /* | |
5039 | * inputs: | |
5040 | * zc_name name of filesystem | |
5041 | * zc_value prefix name for snapshot | |
5042 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
5043 | * | |
5044 | * outputs: | |
6f1ffb06 | 5045 | * zc_value short name of new snapshot |
572e2857 BB |
5046 | */ |
5047 | static int | |
5048 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
5049 | { | |
5050 | char *snap_name; | |
13fe0198 | 5051 | char *hold_name; |
572e2857 | 5052 | int error; |
13fe0198 | 5053 | minor_t minor; |
572e2857 | 5054 | |
13fe0198 MA |
5055 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
5056 | if (error != 0) | |
572e2857 | 5057 | return (error); |
572e2857 | 5058 | |
13fe0198 MA |
5059 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
5060 | (u_longlong_t)ddi_get_lbolt64()); | |
5061 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
5062 | ||
5063 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
5064 | hold_name); | |
5065 | if (error == 0) | |
680eada9 | 5066 | (void) strlcpy(zc->zc_value, snap_name, |
5067 | sizeof (zc->zc_value)); | |
572e2857 | 5068 | strfree(snap_name); |
13fe0198 MA |
5069 | strfree(hold_name); |
5070 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
5071 | return (error); | |
572e2857 BB |
5072 | } |
5073 | ||
5074 | /* | |
5075 | * inputs: | |
5076 | * zc_name name of "to" snapshot | |
5077 | * zc_value name of "from" snapshot | |
5078 | * zc_cookie file descriptor to write diff data on | |
5079 | * | |
5080 | * outputs: | |
5081 | * dmu_diff_record_t's to the file descriptor | |
5082 | */ | |
5083 | static int | |
5084 | zfs_ioc_diff(zfs_cmd_t *zc) | |
5085 | { | |
572e2857 BB |
5086 | file_t *fp; |
5087 | offset_t off; | |
5088 | int error; | |
5089 | ||
572e2857 | 5090 | fp = getf(zc->zc_cookie); |
13fe0198 | 5091 | if (fp == NULL) |
2e528b49 | 5092 | return (SET_ERROR(EBADF)); |
572e2857 BB |
5093 | |
5094 | off = fp->f_offset; | |
5095 | ||
13fe0198 | 5096 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
5097 | |
5098 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5099 | fp->f_offset = off; | |
5100 | releasef(zc->zc_cookie); | |
5101 | ||
572e2857 BB |
5102 | return (error); |
5103 | } | |
5104 | ||
9babb374 BB |
5105 | /* |
5106 | * Remove all ACL files in shares dir | |
5107 | */ | |
3c9609b3 | 5108 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
5109 | static int |
5110 | zfs_smb_acl_purge(znode_t *dzp) | |
5111 | { | |
5112 | zap_cursor_t zc; | |
5113 | zap_attribute_t zap; | |
3558fd73 | 5114 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
5115 | int error; |
5116 | ||
3558fd73 | 5117 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
5118 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
5119 | zap_cursor_advance(&zc)) { | |
5120 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
5121 | NULL, 0)) != 0) | |
5122 | break; | |
5123 | } | |
5124 | zap_cursor_fini(&zc); | |
5125 | return (error); | |
5126 | } | |
3c9609b3 | 5127 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5128 | |
5129 | static int | |
5130 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
5131 | { | |
3c9609b3 | 5132 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
5133 | vnode_t *vp; |
5134 | znode_t *dzp; | |
5135 | vnode_t *resourcevp = NULL; | |
5136 | znode_t *sharedir; | |
3558fd73 | 5137 | zfs_sb_t *zsb; |
9babb374 BB |
5138 | nvlist_t *nvlist; |
5139 | char *src, *target; | |
5140 | vattr_t vattr; | |
5141 | vsecattr_t vsec; | |
5142 | int error = 0; | |
5143 | ||
5144 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
5145 | NO_FOLLOW, NULL, &vp)) != 0) | |
5146 | return (error); | |
5147 | ||
5148 | /* Now make sure mntpnt and dataset are ZFS */ | |
5149 | ||
5150 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
5151 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
5152 | zc->zc_name) != 0)) { | |
5153 | VN_RELE(vp); | |
2e528b49 | 5154 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
5155 | } |
5156 | ||
5157 | dzp = VTOZ(vp); | |
3558fd73 BB |
5158 | zsb = ZTOZSB(dzp); |
5159 | ZFS_ENTER(zsb); | |
9babb374 BB |
5160 | |
5161 | /* | |
5162 | * Create share dir if its missing. | |
5163 | */ | |
3558fd73 BB |
5164 | mutex_enter(&zsb->z_lock); |
5165 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
5166 | dmu_tx_t *tx; |
5167 | ||
3558fd73 | 5168 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
5169 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
5170 | ZFS_SHARES_DIR); | |
5171 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
5172 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 5173 | if (error != 0) { |
9babb374 BB |
5174 | dmu_tx_abort(tx); |
5175 | } else { | |
3558fd73 | 5176 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
5177 | dmu_tx_commit(tx); |
5178 | } | |
13fe0198 | 5179 | if (error != 0) { |
3558fd73 | 5180 | mutex_exit(&zsb->z_lock); |
9babb374 | 5181 | VN_RELE(vp); |
3558fd73 | 5182 | ZFS_EXIT(zsb); |
9babb374 BB |
5183 | return (error); |
5184 | } | |
5185 | } | |
3558fd73 | 5186 | mutex_exit(&zsb->z_lock); |
9babb374 | 5187 | |
3558fd73 BB |
5188 | ASSERT(zsb->z_shares_dir); |
5189 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 5190 | VN_RELE(vp); |
3558fd73 | 5191 | ZFS_EXIT(zsb); |
9babb374 BB |
5192 | return (error); |
5193 | } | |
5194 | ||
5195 | switch (zc->zc_cookie) { | |
5196 | case ZFS_SMB_ACL_ADD: | |
5197 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
5198 | vattr.va_mode = S_IFREG|0777; |
5199 | vattr.va_uid = 0; | |
5200 | vattr.va_gid = 0; | |
5201 | ||
5202 | vsec.vsa_mask = VSA_ACE; | |
5203 | vsec.vsa_aclentp = &full_access; | |
5204 | vsec.vsa_aclentsz = sizeof (full_access); | |
5205 | vsec.vsa_aclcnt = 1; | |
5206 | ||
5207 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
5208 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
5209 | if (resourcevp) | |
5210 | VN_RELE(resourcevp); | |
5211 | break; | |
5212 | ||
5213 | case ZFS_SMB_ACL_REMOVE: | |
5214 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
5215 | NULL, 0); | |
5216 | break; | |
5217 | ||
5218 | case ZFS_SMB_ACL_RENAME: | |
5219 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
5220 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
5221 | VN_RELE(vp); | |
a4d179ef | 5222 | VN_RELE(ZTOV(sharedir)); |
3558fd73 | 5223 | ZFS_EXIT(zsb); |
9babb374 BB |
5224 | return (error); |
5225 | } | |
5226 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
5227 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
5228 | &target)) { | |
5229 | VN_RELE(vp); | |
5230 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 5231 | ZFS_EXIT(zsb); |
428870ff | 5232 | nvlist_free(nvlist); |
9babb374 BB |
5233 | return (error); |
5234 | } | |
5235 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
5236 | kcred, NULL, 0); | |
5237 | nvlist_free(nvlist); | |
5238 | break; | |
5239 | ||
5240 | case ZFS_SMB_ACL_PURGE: | |
5241 | error = zfs_smb_acl_purge(sharedir); | |
5242 | break; | |
5243 | ||
5244 | default: | |
2e528b49 | 5245 | error = SET_ERROR(EINVAL); |
9babb374 BB |
5246 | break; |
5247 | } | |
5248 | ||
5249 | VN_RELE(vp); | |
5250 | VN_RELE(ZTOV(sharedir)); | |
5251 | ||
3558fd73 | 5252 | ZFS_EXIT(zsb); |
9babb374 BB |
5253 | |
5254 | return (error); | |
325f0235 | 5255 | #else |
2e528b49 | 5256 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 5257 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5258 | } |
5259 | ||
45d1cae3 | 5260 | /* |
13fe0198 MA |
5261 | * innvl: { |
5262 | * "holds" -> { snapname -> holdname (string), ... } | |
5263 | * (optional) "cleanup_fd" -> fd (int32) | |
5264 | * } | |
45d1cae3 | 5265 | * |
13fe0198 MA |
5266 | * outnvl: { |
5267 | * snapname -> error value (int32) | |
5268 | * ... | |
5269 | * } | |
45d1cae3 | 5270 | */ |
13fe0198 | 5271 | /* ARGSUSED */ |
45d1cae3 | 5272 | static int |
13fe0198 | 5273 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 5274 | { |
fc581e05 | 5275 | nvpair_t *pair; |
13fe0198 MA |
5276 | nvlist_t *holds; |
5277 | int cleanup_fd = -1; | |
572e2857 BB |
5278 | int error; |
5279 | minor_t minor = 0; | |
45d1cae3 | 5280 | |
13fe0198 MA |
5281 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
5282 | if (error != 0) | |
2e528b49 | 5283 | return (SET_ERROR(EINVAL)); |
572e2857 | 5284 | |
fc581e05 JJS |
5285 | /* make sure the user didn't pass us any invalid (empty) tags */ |
5286 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
5287 | pair = nvlist_next_nvpair(holds, pair)) { | |
5288 | char *htag; | |
5289 | ||
5290 | error = nvpair_value_string(pair, &htag); | |
5291 | if (error != 0) | |
5292 | return (SET_ERROR(error)); | |
5293 | ||
5294 | if (strlen(htag) == 0) | |
5295 | return (SET_ERROR(EINVAL)); | |
5296 | } | |
5297 | ||
13fe0198 MA |
5298 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
5299 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
5300 | if (error != 0) | |
572e2857 | 5301 | return (error); |
572e2857 | 5302 | } |
572e2857 | 5303 | |
13fe0198 MA |
5304 | error = dsl_dataset_user_hold(holds, minor, errlist); |
5305 | if (minor != 0) | |
5306 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 5307 | return (error); |
45d1cae3 BB |
5308 | } |
5309 | ||
5310 | /* | |
13fe0198 | 5311 | * innvl is not used. |
45d1cae3 | 5312 | * |
13fe0198 MA |
5313 | * outnvl: { |
5314 | * holdname -> time added (uint64 seconds since epoch) | |
5315 | * ... | |
5316 | * } | |
45d1cae3 | 5317 | */ |
13fe0198 | 5318 | /* ARGSUSED */ |
45d1cae3 | 5319 | static int |
13fe0198 | 5320 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 5321 | { |
13fe0198 | 5322 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
5323 | } |
5324 | ||
5325 | /* | |
13fe0198 MA |
5326 | * innvl: { |
5327 | * snapname -> { holdname, ... } | |
5328 | * ... | |
5329 | * } | |
45d1cae3 | 5330 | * |
13fe0198 MA |
5331 | * outnvl: { |
5332 | * snapname -> error value (int32) | |
5333 | * ... | |
5334 | * } | |
45d1cae3 | 5335 | */ |
13fe0198 | 5336 | /* ARGSUSED */ |
45d1cae3 | 5337 | static int |
13fe0198 | 5338 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 5339 | { |
13fe0198 | 5340 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
5341 | } |
5342 | ||
26685276 BB |
5343 | /* |
5344 | * inputs: | |
5345 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 5346 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
5347 | * |
5348 | * outputs: | |
5349 | * zc_nvlist_dst next nvlist event | |
5350 | * zc_cookie dropped events since last get | |
26685276 BB |
5351 | */ |
5352 | static int | |
5353 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
5354 | { | |
5355 | zfs_zevent_t *ze; | |
5356 | nvlist_t *event = NULL; | |
5357 | minor_t minor; | |
5358 | uint64_t dropped = 0; | |
5359 | int error; | |
5360 | ||
5361 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5362 | if (error != 0) | |
5363 | return (error); | |
5364 | ||
5365 | do { | |
baa40d45 | 5366 | error = zfs_zevent_next(ze, &event, |
02730c33 | 5367 | &zc->zc_nvlist_dst_size, &dropped); |
26685276 BB |
5368 | if (event != NULL) { |
5369 | zc->zc_cookie = dropped; | |
5370 | error = put_nvlist(zc, event); | |
baa40d45 | 5371 | nvlist_free(event); |
26685276 BB |
5372 | } |
5373 | ||
5374 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
5375 | break; | |
5376 | ||
5377 | if ((error == 0) || (error != ENOENT)) | |
5378 | break; | |
5379 | ||
5380 | error = zfs_zevent_wait(ze); | |
13fe0198 | 5381 | if (error != 0) |
26685276 BB |
5382 | break; |
5383 | } while (1); | |
5384 | ||
5385 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5386 | ||
5387 | return (error); | |
5388 | } | |
5389 | ||
5390 | /* | |
5391 | * outputs: | |
5392 | * zc_cookie cleared events count | |
5393 | */ | |
5394 | static int | |
5395 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
5396 | { | |
5397 | int count; | |
5398 | ||
5399 | zfs_zevent_drain_all(&count); | |
5400 | zc->zc_cookie = count; | |
5401 | ||
d1d7e268 | 5402 | return (0); |
26685276 BB |
5403 | } |
5404 | ||
75e3ff58 BB |
5405 | /* |
5406 | * inputs: | |
5407 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5408 | * zc_cleanup zevent file descriptor | |
5409 | */ | |
5410 | static int | |
5411 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5412 | { | |
5413 | zfs_zevent_t *ze; | |
5414 | minor_t minor; | |
5415 | int error; | |
5416 | ||
5417 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5418 | if (error != 0) | |
5419 | return (error); | |
5420 | ||
5421 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5422 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5423 | ||
5424 | return (error); | |
5425 | } | |
5426 | ||
330d06f9 MA |
5427 | /* |
5428 | * inputs: | |
5429 | * zc_name name of new filesystem or snapshot | |
5430 | * zc_value full name of old snapshot | |
5431 | * | |
5432 | * outputs: | |
5433 | * zc_cookie space in bytes | |
5434 | * zc_objset_type compressed space in bytes | |
5435 | * zc_perm_action uncompressed space in bytes | |
5436 | */ | |
5437 | static int | |
5438 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5439 | { | |
5440 | int error; | |
13fe0198 | 5441 | dsl_pool_t *dp; |
330d06f9 MA |
5442 | dsl_dataset_t *new, *old; |
5443 | ||
13fe0198 | 5444 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5445 | if (error != 0) |
5446 | return (error); | |
13fe0198 MA |
5447 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5448 | if (error != 0) { | |
5449 | dsl_pool_rele(dp, FTAG); | |
5450 | return (error); | |
5451 | } | |
5452 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5453 | if (error != 0) { |
5454 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5455 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5456 | return (error); |
5457 | } | |
5458 | ||
5459 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5460 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5461 | dsl_dataset_rele(old, FTAG); | |
5462 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5463 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5464 | return (error); |
5465 | } | |
5466 | ||
5467 | /* | |
6f1ffb06 MA |
5468 | * innvl: { |
5469 | * "firstsnap" -> snapshot name | |
5470 | * } | |
330d06f9 | 5471 | * |
6f1ffb06 MA |
5472 | * outnvl: { |
5473 | * "used" -> space in bytes | |
5474 | * "compressed" -> compressed space in bytes | |
5475 | * "uncompressed" -> uncompressed space in bytes | |
5476 | * } | |
330d06f9 MA |
5477 | */ |
5478 | static int | |
6f1ffb06 | 5479 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
5480 | { |
5481 | int error; | |
13fe0198 | 5482 | dsl_pool_t *dp; |
330d06f9 | 5483 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
5484 | char *firstsnap; |
5485 | uint64_t used, comp, uncomp; | |
330d06f9 | 5486 | |
6f1ffb06 | 5487 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
2e528b49 | 5488 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5489 | |
13fe0198 | 5490 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5491 | if (error != 0) |
5492 | return (error); | |
13fe0198 MA |
5493 | |
5494 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
71e2fe41 AG |
5495 | if (error == 0 && !new->ds_is_snapshot) { |
5496 | dsl_dataset_rele(new, FTAG); | |
5497 | error = SET_ERROR(EINVAL); | |
5498 | } | |
13fe0198 MA |
5499 | if (error != 0) { |
5500 | dsl_pool_rele(dp, FTAG); | |
5501 | return (error); | |
5502 | } | |
5503 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
71e2fe41 AG |
5504 | if (error == 0 && !old->ds_is_snapshot) { |
5505 | dsl_dataset_rele(old, FTAG); | |
5506 | error = SET_ERROR(EINVAL); | |
5507 | } | |
330d06f9 MA |
5508 | if (error != 0) { |
5509 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5510 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5511 | return (error); |
5512 | } | |
5513 | ||
6f1ffb06 | 5514 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5515 | dsl_dataset_rele(old, FTAG); |
5516 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5517 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5518 | fnvlist_add_uint64(outnvl, "used", used); |
5519 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5520 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5521 | return (error); |
5522 | } | |
5523 | ||
34dc7c2f | 5524 | /* |
6f1ffb06 MA |
5525 | * innvl: { |
5526 | * "fd" -> file descriptor to write stream to (int32) | |
5527 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
f1512ee6 MA |
5528 | * (optional) "largeblockok" -> (value ignored) |
5529 | * indicates that blocks > 128KB are permitted | |
9b67f605 MA |
5530 | * (optional) "embedok" -> (value ignored) |
5531 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
2aa34383 DK |
5532 | * (optional) "compressok" -> (value ignored) |
5533 | * presence indicates compressed DRR_WRITE records are permitted | |
47dfff3b MA |
5534 | * (optional) "resume_object" and "resume_offset" -> (uint64) |
5535 | * if present, resume send stream from specified object and offset. | |
6f1ffb06 MA |
5536 | * } |
5537 | * | |
5538 | * outnvl is unused | |
34dc7c2f | 5539 | */ |
6f1ffb06 MA |
5540 | /* ARGSUSED */ |
5541 | static int | |
5542 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5543 | { | |
6f1ffb06 MA |
5544 | int error; |
5545 | offset_t off; | |
13fe0198 | 5546 | char *fromname = NULL; |
6f1ffb06 | 5547 | int fd; |
13fe0198 | 5548 | file_t *fp; |
f1512ee6 | 5549 | boolean_t largeblockok; |
9b67f605 | 5550 | boolean_t embedok; |
2aa34383 | 5551 | boolean_t compressok; |
47dfff3b MA |
5552 | uint64_t resumeobj = 0; |
5553 | uint64_t resumeoff = 0; | |
6f1ffb06 MA |
5554 | |
5555 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5556 | if (error != 0) | |
2e528b49 | 5557 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5558 | |
13fe0198 | 5559 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5560 | |
f1512ee6 | 5561 | largeblockok = nvlist_exists(innvl, "largeblockok"); |
9b67f605 | 5562 | embedok = nvlist_exists(innvl, "embedok"); |
2aa34383 | 5563 | compressok = nvlist_exists(innvl, "compressok"); |
9b67f605 | 5564 | |
47dfff3b MA |
5565 | (void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj); |
5566 | (void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff); | |
5567 | ||
13fe0198 | 5568 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 5569 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
5570 | |
5571 | off = fp->f_offset; | |
2aa34383 | 5572 | error = dmu_send(snapname, fromname, embedok, largeblockok, compressok, |
02730c33 | 5573 | fd, resumeobj, resumeoff, fp->f_vnode, &off); |
6f1ffb06 MA |
5574 | |
5575 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5576 | fp->f_offset = off; | |
13fe0198 | 5577 | |
6f1ffb06 | 5578 | releasef(fd); |
6f1ffb06 MA |
5579 | return (error); |
5580 | } | |
5581 | ||
5582 | /* | |
5583 | * Determine approximately how large a zfs send stream will be -- the number | |
5584 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5585 | * | |
5586 | * innvl: { | |
5dc8b736 MG |
5587 | * (optional) "from" -> full snap or bookmark name to send an incremental |
5588 | * from | |
2aa34383 DK |
5589 | * (optional) "largeblockok" -> (value ignored) |
5590 | * indicates that blocks > 128KB are permitted | |
5591 | * (optional) "embedok" -> (value ignored) | |
5592 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
5593 | * (optional) "compressok" -> (value ignored) | |
5594 | * presence indicates compressed DRR_WRITE records are permitted | |
6f1ffb06 MA |
5595 | * } |
5596 | * | |
5597 | * outnvl: { | |
5598 | * "space" -> bytes of space (uint64) | |
5599 | * } | |
5600 | */ | |
5601 | static int | |
5602 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5603 | { | |
13fe0198 | 5604 | dsl_pool_t *dp; |
13fe0198 | 5605 | dsl_dataset_t *tosnap; |
6f1ffb06 MA |
5606 | int error; |
5607 | char *fromname; | |
2aa34383 DK |
5608 | /* LINTED E_FUNC_SET_NOT_USED */ |
5609 | boolean_t largeblockok; | |
5610 | /* LINTED E_FUNC_SET_NOT_USED */ | |
5611 | boolean_t embedok; | |
5612 | boolean_t compressok; | |
6f1ffb06 MA |
5613 | uint64_t space; |
5614 | ||
13fe0198 MA |
5615 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5616 | if (error != 0) | |
6f1ffb06 MA |
5617 | return (error); |
5618 | ||
13fe0198 MA |
5619 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5620 | if (error != 0) { | |
5621 | dsl_pool_rele(dp, FTAG); | |
5622 | return (error); | |
5623 | } | |
5624 | ||
2aa34383 DK |
5625 | largeblockok = nvlist_exists(innvl, "largeblockok"); |
5626 | embedok = nvlist_exists(innvl, "embedok"); | |
5627 | compressok = nvlist_exists(innvl, "compressok"); | |
5628 | ||
5dc8b736 | 5629 | error = nvlist_lookup_string(innvl, "from", &fromname); |
6f1ffb06 | 5630 | if (error == 0) { |
5dc8b736 MG |
5631 | if (strchr(fromname, '@') != NULL) { |
5632 | /* | |
5633 | * If from is a snapshot, hold it and use the more | |
5634 | * efficient dmu_send_estimate to estimate send space | |
5635 | * size using deadlists. | |
5636 | */ | |
5637 | dsl_dataset_t *fromsnap; | |
5638 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); | |
5639 | if (error != 0) | |
5640 | goto out; | |
2aa34383 | 5641 | error = dmu_send_estimate(tosnap, fromsnap, compressok, |
02730c33 | 5642 | &space); |
5dc8b736 MG |
5643 | dsl_dataset_rele(fromsnap, FTAG); |
5644 | } else if (strchr(fromname, '#') != NULL) { | |
5645 | /* | |
5646 | * If from is a bookmark, fetch the creation TXG of the | |
5647 | * snapshot it was created from and use that to find | |
5648 | * blocks that were born after it. | |
5649 | */ | |
5650 | zfs_bookmark_phys_t frombm; | |
5651 | ||
5652 | error = dsl_bookmark_lookup(dp, fromname, tosnap, | |
5653 | &frombm); | |
5654 | if (error != 0) | |
5655 | goto out; | |
5656 | error = dmu_send_estimate_from_txg(tosnap, | |
2aa34383 | 5657 | frombm.zbm_creation_txg, compressok, &space); |
5dc8b736 MG |
5658 | } else { |
5659 | /* | |
5660 | * from is not properly formatted as a snapshot or | |
5661 | * bookmark | |
5662 | */ | |
5663 | error = SET_ERROR(EINVAL); | |
5664 | goto out; | |
6f1ffb06 | 5665 | } |
5dc8b736 MG |
5666 | } else { |
5667 | // If estimating the size of a full send, use dmu_send_estimate | |
2aa34383 | 5668 | error = dmu_send_estimate(tosnap, NULL, compressok, &space); |
6f1ffb06 MA |
5669 | } |
5670 | ||
6f1ffb06 MA |
5671 | fnvlist_add_uint64(outnvl, "space", space); |
5672 | ||
5dc8b736 | 5673 | out: |
13fe0198 MA |
5674 | dsl_dataset_rele(tosnap, FTAG); |
5675 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5676 | return (error); |
5677 | } | |
5678 | ||
6f1ffb06 MA |
5679 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; |
5680 | ||
5681 | static void | |
5682 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5683 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5684 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
5685 | { | |
5686 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5687 | ||
5688 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5689 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5690 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5691 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5692 | ||
5693 | vec->zvec_legacy_func = func; | |
5694 | vec->zvec_secpolicy = secpolicy; | |
5695 | vec->zvec_namecheck = namecheck; | |
5696 | vec->zvec_allow_log = log_history; | |
5697 | vec->zvec_pool_check = pool_check; | |
5698 | } | |
5699 | ||
5700 | /* | |
5701 | * See the block comment at the beginning of this file for details on | |
5702 | * each argument to this function. | |
5703 | */ | |
5704 | static void | |
5705 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
5706 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5707 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
5708 | boolean_t allow_log) | |
5709 | { | |
5710 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5711 | ||
5712 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5713 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5714 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5715 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5716 | ||
5717 | /* if we are logging, the name must be valid */ | |
5718 | ASSERT(!allow_log || namecheck != NO_NAME); | |
5719 | ||
5720 | vec->zvec_name = name; | |
5721 | vec->zvec_func = func; | |
5722 | vec->zvec_secpolicy = secpolicy; | |
5723 | vec->zvec_namecheck = namecheck; | |
5724 | vec->zvec_pool_check = pool_check; | |
5725 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
5726 | vec->zvec_allow_log = allow_log; | |
5727 | } | |
5728 | ||
5729 | static void | |
5730 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5731 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
5732 | zfs_ioc_poolcheck_t pool_check) | |
5733 | { | |
5734 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5735 | POOL_NAME, log_history, pool_check); | |
5736 | } | |
5737 | ||
5738 | static void | |
5739 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5740 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
5741 | { | |
5742 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5743 | DATASET_NAME, B_FALSE, pool_check); | |
5744 | } | |
5745 | ||
5746 | static void | |
5747 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5748 | { | |
5749 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
5750 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5751 | } | |
5752 | ||
5753 | static void | |
5754 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5755 | zfs_secpolicy_func_t *secpolicy) | |
5756 | { | |
5757 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5758 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5759 | } | |
5760 | ||
5761 | static void | |
5762 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
5763 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
5764 | { | |
5765 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5766 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
5767 | } | |
5768 | ||
5769 | static void | |
5770 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5771 | { | |
5772 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
5773 | zfs_secpolicy_read); | |
5774 | } | |
5775 | ||
5776 | static void | |
5777 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
e9aa730c | 5778 | zfs_secpolicy_func_t *secpolicy) |
6f1ffb06 MA |
5779 | { |
5780 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5781 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5782 | } | |
5783 | ||
5784 | static void | |
5785 | zfs_ioctl_init(void) | |
5786 | { | |
5787 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
5788 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
5789 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5790 | ||
5791 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
5792 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
5793 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
5794 | ||
5795 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
5796 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
5797 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5798 | ||
5799 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
5800 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
5801 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5802 | ||
5803 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
5804 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
5805 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5806 | ||
5807 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
5808 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
5809 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5810 | ||
5811 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
5812 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
5813 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5814 | ||
5815 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
5816 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
5817 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5818 | ||
13fe0198 MA |
5819 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
5820 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
5821 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5822 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
5823 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
5824 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5825 | ||
5826 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
5827 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
5828 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5829 | ||
46ba1e59 MA |
5830 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
5831 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
5832 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); | |
5833 | ||
da536844 MA |
5834 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
5835 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
5836 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5837 | ||
5838 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
5839 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
5840 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5841 | ||
5842 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
5843 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
5844 | POOL_NAME, | |
5845 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5846 | ||
43e52edd BB |
5847 | zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW, |
5848 | zfs_ioc_recv_new, zfs_secpolicy_recv_new, DATASET_NAME, | |
5849 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5850 | ||
6f1ffb06 MA |
5851 | /* IOCTLS that use the legacy function signature */ |
5852 | ||
5853 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
5854 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
5855 | ||
5856 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
5857 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5858 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
5859 | zfs_ioc_pool_scan); | |
5860 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
5861 | zfs_ioc_pool_upgrade); | |
5862 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
5863 | zfs_ioc_vdev_add); | |
5864 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
5865 | zfs_ioc_vdev_remove); | |
5866 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
5867 | zfs_ioc_vdev_set_state); | |
5868 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
5869 | zfs_ioc_vdev_attach); | |
5870 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
5871 | zfs_ioc_vdev_detach); | |
5872 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
5873 | zfs_ioc_vdev_setpath); | |
5874 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
5875 | zfs_ioc_vdev_setfru); | |
5876 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
5877 | zfs_ioc_pool_set_props); | |
5878 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
5879 | zfs_ioc_vdev_split); | |
5880 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
5881 | zfs_ioc_pool_reguid); | |
5882 | ||
5883 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
5884 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
5885 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
5886 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
5887 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
5888 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
5889 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
5890 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
5891 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
5892 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
5893 | ||
5894 | /* | |
5895 | * pool destroy, and export don't log the history as part of | |
5896 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
5897 | * does the logging of those commands. | |
5898 | */ | |
5899 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
87a63dd7 | 5900 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 | 5901 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, |
87a63dd7 | 5902 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 MA |
5903 | |
5904 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
5905 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5906 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
5907 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5908 | ||
5909 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
5910 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
5911 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
5912 | zfs_ioc_dsobj_to_dsname, | |
5913 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
5914 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
5915 | zfs_ioc_pool_get_history, | |
5916 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
5917 | ||
5918 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
5919 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5920 | ||
5921 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
ac72fac3 | 5922 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); |
6f1ffb06 MA |
5923 | zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
5924 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5925 | ||
5926 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
5927 | zfs_ioc_space_written); | |
6f1ffb06 MA |
5928 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
5929 | zfs_ioc_objset_recvd_props); | |
5930 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
5931 | zfs_ioc_next_obj); | |
5932 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
5933 | zfs_ioc_get_fsacl); | |
5934 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
5935 | zfs_ioc_objset_stats); | |
5936 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
5937 | zfs_ioc_objset_zplprops); | |
5938 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
5939 | zfs_ioc_dataset_list_next); | |
5940 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
5941 | zfs_ioc_snapshot_list_next); | |
5942 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
5943 | zfs_ioc_send_progress); | |
5944 | ||
5945 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
5946 | zfs_ioc_diff, zfs_secpolicy_diff); | |
5947 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
5948 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
5949 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
5950 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
5951 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
5952 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
5953 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
5954 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
5955 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
5956 | zfs_ioc_send, zfs_secpolicy_send); | |
5957 | ||
5958 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
5959 | zfs_secpolicy_none); | |
5960 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
5961 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
5962 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
5963 | zfs_secpolicy_rename); | |
5964 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
5965 | zfs_secpolicy_recv); | |
5966 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
5967 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
5968 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
5969 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
5970 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
5971 | zfs_secpolicy_set_fsacl); | |
5972 | ||
5973 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
5974 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
5975 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
5976 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
5977 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
5978 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
5979 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5980 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
5981 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
5982 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5983 | ||
5984 | /* | |
ba6a2402 | 5985 | * ZoL functions |
6f1ffb06 | 5986 | */ |
6f1ffb06 MA |
5987 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
5988 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5989 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
5990 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
5991 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
5992 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 5993 | } |
34dc7c2f | 5994 | |
9babb374 | 5995 | int |
572e2857 BB |
5996 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
5997 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
5998 | { |
5999 | spa_t *spa; | |
6000 | int error; | |
6001 | ||
6002 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
6003 | ||
572e2857 BB |
6004 | if (check & POOL_CHECK_NONE) |
6005 | return (0); | |
6006 | ||
9babb374 BB |
6007 | error = spa_open(name, &spa, FTAG); |
6008 | if (error == 0) { | |
572e2857 | 6009 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 6010 | error = SET_ERROR(EAGAIN); |
572e2857 | 6011 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 6012 | error = SET_ERROR(EROFS); |
9babb374 BB |
6013 | spa_close(spa, FTAG); |
6014 | } | |
6015 | return (error); | |
6016 | } | |
6017 | ||
325f0235 BB |
6018 | static void * |
6019 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
6020 | { | |
6021 | zfsdev_state_t *zs; | |
6022 | ||
3937ab20 | 6023 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 6024 | if (zs->zs_minor == minor) { |
3937ab20 | 6025 | smp_rmb(); |
325f0235 | 6026 | switch (which) { |
d1d7e268 MK |
6027 | case ZST_ONEXIT: |
6028 | return (zs->zs_onexit); | |
6029 | case ZST_ZEVENT: | |
6030 | return (zs->zs_zevent); | |
6031 | case ZST_ALL: | |
6032 | return (zs); | |
325f0235 BB |
6033 | } |
6034 | } | |
6035 | } | |
6036 | ||
d1d7e268 | 6037 | return (NULL); |
325f0235 BB |
6038 | } |
6039 | ||
6040 | void * | |
6041 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
6042 | { | |
6043 | void *ptr; | |
6044 | ||
325f0235 | 6045 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 6046 | |
d1d7e268 | 6047 | return (ptr); |
325f0235 BB |
6048 | } |
6049 | ||
72540ea3 RY |
6050 | int |
6051 | zfsdev_getminor(struct file *filp, minor_t *minorp) | |
325f0235 | 6052 | { |
72540ea3 RY |
6053 | zfsdev_state_t *zs, *fpd; |
6054 | ||
325f0235 | 6055 | ASSERT(filp != NULL); |
72540ea3 RY |
6056 | ASSERT(!MUTEX_HELD(&zfsdev_state_lock)); |
6057 | ||
6058 | fpd = filp->private_data; | |
6059 | if (fpd == NULL) | |
6060 | return (EBADF); | |
6061 | ||
6062 | mutex_enter(&zfsdev_state_lock); | |
6063 | ||
6064 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
6065 | ||
6066 | if (zs->zs_minor == -1) | |
6067 | continue; | |
6068 | ||
6069 | if (fpd == zs) { | |
6070 | *minorp = fpd->zs_minor; | |
6071 | mutex_exit(&zfsdev_state_lock); | |
6072 | return (0); | |
6073 | } | |
6074 | } | |
6075 | ||
6076 | mutex_exit(&zfsdev_state_lock); | |
325f0235 | 6077 | |
72540ea3 | 6078 | return (EBADF); |
325f0235 BB |
6079 | } |
6080 | ||
572e2857 | 6081 | /* |
325f0235 BB |
6082 | * Find a free minor number. The zfsdev_state_list is expected to |
6083 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
6084 | */ |
6085 | minor_t | |
6086 | zfsdev_minor_alloc(void) | |
6087 | { | |
325f0235 | 6088 | static minor_t last_minor = 0; |
572e2857 BB |
6089 | minor_t m; |
6090 | ||
6091 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
6092 | ||
6093 | for (m = last_minor + 1; m != last_minor; m++) { | |
6094 | if (m > ZFSDEV_MAX_MINOR) | |
6095 | m = 1; | |
325f0235 | 6096 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
6097 | last_minor = m; |
6098 | return (m); | |
6099 | } | |
6100 | } | |
6101 | ||
6102 | return (0); | |
6103 | } | |
6104 | ||
6105 | static int | |
325f0235 | 6106 | zfsdev_state_init(struct file *filp) |
572e2857 | 6107 | { |
3937ab20 | 6108 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 6109 | minor_t minor; |
3937ab20 | 6110 | boolean_t newzs = B_FALSE; |
572e2857 BB |
6111 | |
6112 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 6113 | |
d1d7e268 MK |
6114 | minor = zfsdev_minor_alloc(); |
6115 | if (minor == 0) | |
6116 | return (SET_ERROR(ENXIO)); | |
325f0235 | 6117 | |
3937ab20 TC |
6118 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
6119 | if (zs->zs_minor == -1) | |
6120 | break; | |
6121 | zsprev = zs; | |
6122 | } | |
6123 | ||
6124 | if (!zs) { | |
6125 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
6126 | newzs = B_TRUE; | |
6127 | } | |
572e2857 | 6128 | |
325f0235 | 6129 | zs->zs_file = filp; |
325f0235 | 6130 | filp->private_data = zs; |
572e2857 | 6131 | |
325f0235 BB |
6132 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
6133 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 6134 | |
3937ab20 TC |
6135 | |
6136 | /* | |
6137 | * In order to provide for lock-free concurrent read access | |
6138 | * to the minor list in zfsdev_get_state_impl(), new entries | |
6139 | * must be completely written before linking them into the | |
6140 | * list whereas existing entries are already linked; the last | |
6141 | * operation must be updating zs_minor (from -1 to the new | |
6142 | * value). | |
6143 | */ | |
6144 | if (newzs) { | |
6145 | zs->zs_minor = minor; | |
6146 | smp_wmb(); | |
6147 | zsprev->zs_next = zs; | |
6148 | } else { | |
6149 | smp_wmb(); | |
6150 | zs->zs_minor = minor; | |
6151 | } | |
572e2857 BB |
6152 | |
6153 | return (0); | |
6154 | } | |
6155 | ||
325f0235 BB |
6156 | static int |
6157 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 6158 | { |
325f0235 | 6159 | zfsdev_state_t *zs; |
572e2857 | 6160 | |
325f0235 BB |
6161 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
6162 | ASSERT(filp->private_data != NULL); | |
572e2857 | 6163 | |
325f0235 | 6164 | zs = filp->private_data; |
3937ab20 | 6165 | zs->zs_minor = -1; |
325f0235 BB |
6166 | zfs_onexit_destroy(zs->zs_onexit); |
6167 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 6168 | |
d1d7e268 | 6169 | return (0); |
572e2857 BB |
6170 | } |
6171 | ||
6172 | static int | |
325f0235 | 6173 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 6174 | { |
325f0235 | 6175 | int error; |
572e2857 | 6176 | |
325f0235 BB |
6177 | mutex_enter(&zfsdev_state_lock); |
6178 | error = zfsdev_state_init(filp); | |
6179 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 6180 | |
325f0235 | 6181 | return (-error); |
572e2857 BB |
6182 | } |
6183 | ||
6184 | static int | |
325f0235 | 6185 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 6186 | { |
325f0235 | 6187 | int error; |
572e2857 BB |
6188 | |
6189 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 6190 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
6191 | mutex_exit(&zfsdev_state_lock); |
6192 | ||
325f0235 | 6193 | return (-error); |
572e2857 BB |
6194 | } |
6195 | ||
325f0235 BB |
6196 | static long |
6197 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
6198 | { |
6199 | zfs_cmd_t *zc; | |
6f1ffb06 | 6200 | uint_t vecnum; |
4fd762f8 | 6201 | int error, rc, flag = 0; |
6f1ffb06 | 6202 | const zfs_ioc_vec_t *vec; |
fb8e608d | 6203 | char *saved_poolname = NULL; |
6f1ffb06 | 6204 | nvlist_t *innvl = NULL; |
40d06e3c | 6205 | fstrans_cookie_t cookie; |
6f1ffb06 MA |
6206 | |
6207 | vecnum = cmd - ZFS_IOC_FIRST; | |
6208 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
2e528b49 | 6209 | return (-SET_ERROR(EINVAL)); |
6f1ffb06 | 6210 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 6211 | |
2e0358cb BB |
6212 | /* |
6213 | * The registered ioctl list may be sparse, verify that either | |
6214 | * a normal or legacy handler are registered. | |
6215 | */ | |
6216 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
6217 | return (-SET_ERROR(EINVAL)); | |
6218 | ||
efcd79a8 | 6219 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
34dc7c2f | 6220 | |
9babb374 | 6221 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 6222 | if (error != 0) { |
2e528b49 | 6223 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
6224 | goto out; |
6225 | } | |
34dc7c2f | 6226 | |
6f1ffb06 | 6227 | zc->zc_iflags = flag & FKIOCTL; |
f74b821a BB |
6228 | if (zc->zc_nvlist_src_size > MAX_NVLIST_SRC_SIZE) { |
6229 | /* | |
6230 | * Make sure the user doesn't pass in an insane value for | |
6231 | * zc_nvlist_src_size. We have to check, since we will end | |
6232 | * up allocating that much memory inside of get_nvlist(). This | |
6233 | * prevents a nefarious user from allocating tons of kernel | |
6234 | * memory. | |
6235 | * | |
6236 | * Also, we return EINVAL instead of ENOMEM here. The reason | |
6237 | * being that returning ENOMEM from an ioctl() has a special | |
6238 | * connotation; that the user's size value is too small and | |
6239 | * needs to be expanded to hold the nvlist. See | |
6240 | * zcmd_expand_dst_nvlist() for details. | |
6241 | */ | |
6242 | error = SET_ERROR(EINVAL); /* User's size too big */ | |
6243 | ||
6244 | } else if (zc->zc_nvlist_src_size != 0) { | |
6f1ffb06 MA |
6245 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
6246 | zc->zc_iflags, &innvl); | |
6247 | if (error != 0) | |
6248 | goto out; | |
6249 | } | |
34dc7c2f BB |
6250 | |
6251 | /* | |
6252 | * Ensure that all pool/dataset names are valid before we pass down to | |
6253 | * the lower layers. | |
6254 | */ | |
6f1ffb06 MA |
6255 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
6256 | switch (vec->zvec_namecheck) { | |
6257 | case POOL_NAME: | |
6258 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 6259 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 6260 | else |
572e2857 | 6261 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
6262 | vec->zvec_namecheck, vec->zvec_pool_check); |
6263 | break; | |
34dc7c2f | 6264 | |
6f1ffb06 MA |
6265 | case DATASET_NAME: |
6266 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 6267 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 6268 | else |
572e2857 | 6269 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
6270 | vec->zvec_namecheck, vec->zvec_pool_check); |
6271 | break; | |
34dc7c2f | 6272 | |
6f1ffb06 MA |
6273 | case NO_NAME: |
6274 | break; | |
34dc7c2f BB |
6275 | } |
6276 | ||
34dc7c2f | 6277 | |
ddab862d TC |
6278 | if (error == 0 && !(flag & FKIOCTL)) { |
6279 | cookie = spl_fstrans_mark(); | |
6f1ffb06 | 6280 | error = vec->zvec_secpolicy(zc, innvl, CRED()); |
ddab862d TC |
6281 | spl_fstrans_unmark(cookie); |
6282 | } | |
6f1ffb06 MA |
6283 | |
6284 | if (error != 0) | |
6285 | goto out; | |
6286 | ||
6287 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
6288 | saved_poolname = strdup(zc->zc_name); |
6289 | if (saved_poolname == NULL) { | |
6290 | error = SET_ERROR(ENOMEM); | |
6291 | goto out; | |
6292 | } else { | |
6293 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
6294 | } | |
6f1ffb06 MA |
6295 | |
6296 | if (vec->zvec_func != NULL) { | |
6297 | nvlist_t *outnvl; | |
6298 | int puterror = 0; | |
6299 | spa_t *spa; | |
6300 | nvlist_t *lognv = NULL; | |
6301 | ||
6302 | ASSERT(vec->zvec_legacy_func == NULL); | |
6303 | ||
6304 | /* | |
6305 | * Add the innvl to the lognv before calling the func, | |
6306 | * in case the func changes the innvl. | |
6307 | */ | |
6308 | if (vec->zvec_allow_log) { | |
6309 | lognv = fnvlist_alloc(); | |
6310 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
6311 | vec->zvec_name); | |
6312 | if (!nvlist_empty(innvl)) { | |
6313 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
6314 | innvl); | |
6315 | } | |
6316 | } | |
6317 | ||
79c76d5b | 6318 | outnvl = fnvlist_alloc(); |
40d06e3c | 6319 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 6320 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
40d06e3c | 6321 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
6322 | |
6323 | if (error == 0 && vec->zvec_allow_log && | |
6324 | spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
6325 | if (!nvlist_empty(outnvl)) { | |
6326 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
6327 | outnvl); | |
6328 | } | |
6329 | (void) spa_history_log_nvl(spa, lognv); | |
6330 | spa_close(spa, FTAG); | |
6331 | } | |
6332 | fnvlist_free(lognv); | |
6333 | ||
6334 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
6335 | int smusherror = 0; | |
6336 | if (vec->zvec_smush_outnvlist) { | |
6337 | smusherror = nvlist_smush(outnvl, | |
6338 | zc->zc_nvlist_dst_size); | |
6339 | } | |
6340 | if (smusherror == 0) | |
6341 | puterror = put_nvlist(zc, outnvl); | |
6342 | } | |
6343 | ||
6344 | if (puterror != 0) | |
6345 | error = puterror; | |
6346 | ||
6347 | nvlist_free(outnvl); | |
6348 | } else { | |
40d06e3c | 6349 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 6350 | error = vec->zvec_legacy_func(zc); |
40d06e3c | 6351 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
6352 | } |
6353 | ||
6354 | out: | |
6355 | nvlist_free(innvl); | |
9babb374 | 6356 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 6357 | if (error == 0 && rc != 0) |
2e528b49 | 6358 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
6359 | if (error == 0 && vec->zvec_allow_log) { |
6360 | char *s = tsd_get(zfs_allow_log_key); | |
6361 | if (s != NULL) | |
6362 | strfree(s); | |
fb8e608d TC |
6363 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
6364 | } else { | |
6365 | if (saved_poolname != NULL) | |
4fd762f8 | 6366 | strfree(saved_poolname); |
34dc7c2f BB |
6367 | } |
6368 | ||
6369 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 6370 | return (-error); |
34dc7c2f BB |
6371 | } |
6372 | ||
325f0235 BB |
6373 | #ifdef CONFIG_COMPAT |
6374 | static long | |
6375 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 6376 | { |
d1d7e268 | 6377 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
6378 | } |
6379 | #else | |
d1d7e268 | 6380 | #define zfsdev_compat_ioctl NULL |
325f0235 | 6381 | #endif |
34dc7c2f | 6382 | |
325f0235 | 6383 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
6384 | .open = zfsdev_open, |
6385 | .release = zfsdev_release, | |
6386 | .unlocked_ioctl = zfsdev_ioctl, | |
6387 | .compat_ioctl = zfsdev_compat_ioctl, | |
6388 | .owner = THIS_MODULE, | |
325f0235 | 6389 | }; |
34dc7c2f | 6390 | |
325f0235 | 6391 | static struct miscdevice zfs_misc = { |
d1d7e268 MK |
6392 | .minor = MISC_DYNAMIC_MINOR, |
6393 | .name = ZFS_DRIVER, | |
6394 | .fops = &zfsdev_fops, | |
325f0235 | 6395 | }; |
34dc7c2f BB |
6396 | |
6397 | static int | |
325f0235 | 6398 | zfs_attach(void) |
34dc7c2f | 6399 | { |
325f0235 | 6400 | int error; |
34dc7c2f | 6401 | |
325f0235 | 6402 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
6403 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
6404 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 6405 | |
325f0235 | 6406 | error = misc_register(&zfs_misc); |
d1d7e268 | 6407 | if (error != 0) { |
325f0235 BB |
6408 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); |
6409 | return (error); | |
6410 | } | |
34dc7c2f | 6411 | |
325f0235 | 6412 | return (0); |
34dc7c2f BB |
6413 | } |
6414 | ||
325f0235 BB |
6415 | static void |
6416 | zfs_detach(void) | |
34dc7c2f | 6417 | { |
3937ab20 | 6418 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 6419 | |
324dcd37 | 6420 | misc_deregister(&zfs_misc); |
325f0235 | 6421 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
6422 | |
6423 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
6424 | if (zsprev) | |
6425 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
6426 | zsprev = zs; | |
6427 | } | |
6428 | if (zsprev) | |
6429 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
6430 | } |
6431 | ||
6f1ffb06 MA |
6432 | static void |
6433 | zfs_allow_log_destroy(void *arg) | |
6434 | { | |
6435 | char *poolname = arg; | |
9f3d1407 | 6436 | |
6437 | if (poolname != NULL) | |
6438 | strfree(poolname); | |
6f1ffb06 | 6439 | } |
325f0235 BB |
6440 | |
6441 | #ifdef DEBUG | |
d1d7e268 | 6442 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 6443 | #else |
d1d7e268 | 6444 | #define ZFS_DEBUG_STR "" |
325f0235 | 6445 | #endif |
34dc7c2f | 6446 | |
b4f3666a | 6447 | static int __init |
34dc7c2f BB |
6448 | _init(void) |
6449 | { | |
6450 | int error; | |
6451 | ||
3d8d245f | 6452 | error = -vn_set_pwd("/"); |
b4f3666a BB |
6453 | if (error) { |
6454 | printk(KERN_NOTICE | |
6455 | "ZFS: Warning unable to set pwd to '/': %d\n", error); | |
6456 | return (error); | |
6457 | } | |
6458 | ||
a0bd735a BP |
6459 | if ((error = -zvol_init()) != 0) |
6460 | return (error); | |
6461 | ||
34dc7c2f BB |
6462 | spa_init(FREAD | FWRITE); |
6463 | zfs_init(); | |
34dc7c2f | 6464 | |
6f1ffb06 MA |
6465 | zfs_ioctl_init(); |
6466 | ||
325f0235 | 6467 | if ((error = zfs_attach()) != 0) |
a0bd735a | 6468 | goto out; |
34dc7c2f | 6469 | |
d5446cfc | 6470 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
6471 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
6472 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 6473 | |
4b5d425f | 6474 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
6475 | "ZFS pool version %s, ZFS filesystem version %s\n", |
6476 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
6477 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
6478 | #ifndef CONFIG_FS_POSIX_ACL |
6479 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
6480 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
6481 | |
6482 | return (0); | |
325f0235 | 6483 | |
a0bd735a | 6484 | out: |
325f0235 BB |
6485 | zfs_fini(); |
6486 | spa_fini(); | |
a0bd735a | 6487 | (void) zvol_fini(); |
4b5d425f | 6488 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
6489 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
6490 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
6491 | |
6492 | return (error); | |
34dc7c2f BB |
6493 | } |
6494 | ||
b4f3666a | 6495 | static void __exit |
34dc7c2f BB |
6496 | _fini(void) |
6497 | { | |
325f0235 | 6498 | zfs_detach(); |
34dc7c2f BB |
6499 | zfs_fini(); |
6500 | spa_fini(); | |
a0bd735a | 6501 | zvol_fini(); |
46e18b3f | 6502 | |
d5446cfc | 6503 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 6504 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 6505 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 6506 | |
4b5d425f | 6507 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 6508 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 6509 | } |
325f0235 BB |
6510 | |
6511 | #ifdef HAVE_SPL | |
b4f3666a BB |
6512 | module_init(_init); |
6513 | module_exit(_fini); | |
325f0235 BB |
6514 | |
6515 | MODULE_DESCRIPTION("ZFS"); | |
6516 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
6517 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 6518 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
325f0235 | 6519 | #endif /* HAVE_SPL */ |