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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 |
0cee2406 | 25 | * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net> |
b129c659 | 26 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
3541dc6d | 27 | * Copyright 2011 Nexenta Systems, Inc. All rights reserved. |
37abac6d | 28 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
2e528b49 | 29 | * Copyright (c) 201i3 by Delphix. All rights reserved. |
9759c60f | 30 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
95fd54a1 | 31 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
6f1ffb06 MA |
32 | */ |
33 | ||
34 | /* | |
35 | * ZFS ioctls. | |
36 | * | |
37 | * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage | |
38 | * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. | |
39 | * | |
40 | * There are two ways that we handle ioctls: the legacy way where almost | |
41 | * all of the logic is in the ioctl callback, and the new way where most | |
42 | * of the marshalling is handled in the common entry point, zfsdev_ioctl(). | |
43 | * | |
44 | * Non-legacy ioctls should be registered by calling | |
45 | * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked | |
46 | * from userland by lzc_ioctl(). | |
47 | * | |
48 | * The registration arguments are as follows: | |
49 | * | |
50 | * const char *name | |
51 | * The name of the ioctl. This is used for history logging. If the | |
52 | * ioctl returns successfully (the callback returns 0), and allow_log | |
53 | * is true, then a history log entry will be recorded with the input & | |
54 | * output nvlists. The log entry can be printed with "zpool history -i". | |
55 | * | |
56 | * zfs_ioc_t ioc | |
57 | * The ioctl request number, which userland will pass to ioctl(2). | |
58 | * The ioctl numbers can change from release to release, because | |
59 | * the caller (libzfs) must be matched to the kernel. | |
60 | * | |
61 | * zfs_secpolicy_func_t *secpolicy | |
62 | * This function will be called before the zfs_ioc_func_t, to | |
63 | * determine if this operation is permitted. It should return EPERM | |
64 | * on failure, and 0 on success. Checks include determining if the | |
65 | * dataset is visible in this zone, and if the user has either all | |
66 | * zfs privileges in the zone (SYS_MOUNT), or has been granted permission | |
67 | * to do this operation on this dataset with "zfs allow". | |
68 | * | |
69 | * zfs_ioc_namecheck_t namecheck | |
70 | * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool | |
71 | * name, a dataset name, or nothing. If the name is not well-formed, | |
72 | * the ioctl will fail and the callback will not be called. | |
73 | * Therefore, the callback can assume that the name is well-formed | |
74 | * (e.g. is null-terminated, doesn't have more than one '@' character, | |
75 | * doesn't have invalid characters). | |
76 | * | |
77 | * zfs_ioc_poolcheck_t pool_check | |
78 | * This specifies requirements on the pool state. If the pool does | |
79 | * not meet them (is suspended or is readonly), the ioctl will fail | |
80 | * and the callback will not be called. If any checks are specified | |
81 | * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. | |
82 | * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | | |
83 | * POOL_CHECK_READONLY). | |
84 | * | |
85 | * boolean_t smush_outnvlist | |
86 | * If smush_outnvlist is true, then the output is presumed to be a | |
87 | * list of errors, and it will be "smushed" down to fit into the | |
88 | * caller's buffer, by removing some entries and replacing them with a | |
89 | * single "N_MORE_ERRORS" entry indicating how many were removed. See | |
90 | * nvlist_smush() for details. If smush_outnvlist is false, and the | |
91 | * outnvlist does not fit into the userland-provided buffer, then the | |
92 | * ioctl will fail with ENOMEM. | |
93 | * | |
94 | * zfs_ioc_func_t *func | |
95 | * The callback function that will perform the operation. | |
96 | * | |
97 | * The callback should return 0 on success, or an error number on | |
98 | * failure. If the function fails, the userland ioctl will return -1, | |
99 | * and errno will be set to the callback's return value. The callback | |
100 | * will be called with the following arguments: | |
101 | * | |
102 | * const char *name | |
103 | * The name of the pool or dataset to operate on, from | |
104 | * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the | |
105 | * expected type (pool, dataset, or none). | |
106 | * | |
107 | * nvlist_t *innvl | |
108 | * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or | |
109 | * NULL if no input nvlist was provided. Changes to this nvlist are | |
110 | * ignored. If the input nvlist could not be deserialized, the | |
111 | * ioctl will fail and the callback will not be called. | |
112 | * | |
113 | * nvlist_t *outnvl | |
114 | * The output nvlist, initially empty. The callback can fill it in, | |
115 | * and it will be returned to userland by serializing it into | |
116 | * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization | |
117 | * fails (e.g. because the caller didn't supply a large enough | |
118 | * buffer), then the overall ioctl will fail. See the | |
119 | * 'smush_nvlist' argument above for additional behaviors. | |
120 | * | |
121 | * There are two typical uses of the output nvlist: | |
122 | * - To return state, e.g. property values. In this case, | |
123 | * smush_outnvlist should be false. If the buffer was not large | |
124 | * enough, the caller will reallocate a larger buffer and try | |
125 | * the ioctl again. | |
126 | * | |
127 | * - To return multiple errors from an ioctl which makes on-disk | |
128 | * changes. In this case, smush_outnvlist should be true. | |
129 | * Ioctls which make on-disk modifications should generally not | |
130 | * use the outnvl if they succeed, because the caller can not | |
131 | * distinguish between the operation failing, and | |
132 | * deserialization failing. | |
3541dc6d | 133 | */ |
34dc7c2f | 134 | |
34dc7c2f BB |
135 | #include <sys/types.h> |
136 | #include <sys/param.h> | |
137 | #include <sys/errno.h> | |
138 | #include <sys/uio.h> | |
139 | #include <sys/buf.h> | |
140 | #include <sys/modctl.h> | |
141 | #include <sys/open.h> | |
142 | #include <sys/file.h> | |
143 | #include <sys/kmem.h> | |
144 | #include <sys/conf.h> | |
145 | #include <sys/cmn_err.h> | |
146 | #include <sys/stat.h> | |
147 | #include <sys/zfs_ioctl.h> | |
428870ff | 148 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
149 | #include <sys/zfs_znode.h> |
150 | #include <sys/zap.h> | |
151 | #include <sys/spa.h> | |
152 | #include <sys/spa_impl.h> | |
153 | #include <sys/vdev.h> | |
428870ff | 154 | #include <sys/priv_impl.h> |
34dc7c2f BB |
155 | #include <sys/dmu.h> |
156 | #include <sys/dsl_dir.h> | |
157 | #include <sys/dsl_dataset.h> | |
158 | #include <sys/dsl_prop.h> | |
159 | #include <sys/dsl_deleg.h> | |
160 | #include <sys/dmu_objset.h> | |
37abac6d | 161 | #include <sys/dmu_impl.h> |
13fe0198 | 162 | #include <sys/dmu_tx.h> |
34dc7c2f BB |
163 | #include <sys/ddi.h> |
164 | #include <sys/sunddi.h> | |
165 | #include <sys/sunldi.h> | |
166 | #include <sys/policy.h> | |
167 | #include <sys/zone.h> | |
168 | #include <sys/nvpair.h> | |
169 | #include <sys/pathname.h> | |
170 | #include <sys/mount.h> | |
171 | #include <sys/sdt.h> | |
172 | #include <sys/fs/zfs.h> | |
ebe7e575 | 173 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 174 | #include <sys/zfs_dir.h> |
572e2857 | 175 | #include <sys/zfs_onexit.h> |
34dc7c2f | 176 | #include <sys/zvol.h> |
428870ff | 177 | #include <sys/dsl_scan.h> |
34dc7c2f | 178 | #include <sharefs/share.h> |
325f0235 BB |
179 | #include <sys/fm/util.h> |
180 | ||
13fe0198 MA |
181 | #include <sys/dmu_send.h> |
182 | #include <sys/dsl_destroy.h> | |
da536844 | 183 | #include <sys/dsl_bookmark.h> |
13fe0198 | 184 | #include <sys/dsl_userhold.h> |
9759c60f ED |
185 | #include <sys/zfeature.h> |
186 | ||
325f0235 | 187 | #include <linux/miscdevice.h> |
34dc7c2f BB |
188 | |
189 | #include "zfs_namecheck.h" | |
190 | #include "zfs_prop.h" | |
191 | #include "zfs_deleg.h" | |
428870ff | 192 | #include "zfs_comutil.h" |
34dc7c2f | 193 | |
325f0235 | 194 | kmutex_t zfsdev_state_lock; |
3937ab20 | 195 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
196 | |
197 | extern void zfs_init(void); | |
198 | extern void zfs_fini(void); | |
199 | ||
6f1ffb06 MA |
200 | uint_t zfs_fsyncer_key; |
201 | extern uint_t rrw_tsd_key; | |
202 | static uint_t zfs_allow_log_key; | |
203 | ||
204 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
205 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
206 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 207 | |
9babb374 BB |
208 | typedef enum { |
209 | NO_NAME, | |
210 | POOL_NAME, | |
211 | DATASET_NAME | |
212 | } zfs_ioc_namecheck_t; | |
213 | ||
572e2857 BB |
214 | typedef enum { |
215 | POOL_CHECK_NONE = 1 << 0, | |
216 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 217 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
218 | } zfs_ioc_poolcheck_t; |
219 | ||
34dc7c2f | 220 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 221 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
222 | zfs_ioc_func_t *zvec_func; |
223 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 224 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 225 | boolean_t zvec_allow_log; |
572e2857 | 226 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
227 | boolean_t zvec_smush_outnvlist; |
228 | const char *zvec_name; | |
34dc7c2f BB |
229 | } zfs_ioc_vec_t; |
230 | ||
9babb374 BB |
231 | /* This array is indexed by zfs_userquota_prop_t */ |
232 | static const char *userquota_perms[] = { | |
233 | ZFS_DELEG_PERM_USERUSED, | |
234 | ZFS_DELEG_PERM_USERQUOTA, | |
235 | ZFS_DELEG_PERM_GROUPUSED, | |
236 | ZFS_DELEG_PERM_GROUPQUOTA, | |
237 | }; | |
238 | ||
239 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
240 | static int zfs_check_settable(const char *name, nvpair_t *property, |
241 | cred_t *cr); | |
242 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
243 | nvlist_t **errors); | |
b128c09f BB |
244 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
245 | boolean_t *); | |
6f1ffb06 MA |
246 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
247 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 248 | |
fa86b5db | 249 | static int zfs_prop_activate_feature(spa_t *spa, spa_feature_t feature); |
9759c60f | 250 | |
34dc7c2f BB |
251 | static void |
252 | history_str_free(char *buf) | |
253 | { | |
254 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
255 | } | |
256 | ||
257 | static char * | |
258 | history_str_get(zfs_cmd_t *zc) | |
259 | { | |
260 | char *buf; | |
261 | ||
b8864a23 | 262 | if (zc->zc_history == 0) |
34dc7c2f BB |
263 | return (NULL); |
264 | ||
00b46022 | 265 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
266 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
267 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
268 | history_str_free(buf); | |
269 | return (NULL); | |
270 | } | |
271 | ||
272 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
273 | ||
274 | return (buf); | |
275 | } | |
276 | ||
277 | /* | |
b128c09f BB |
278 | * Check to see if the named dataset is currently defined as bootable |
279 | */ | |
280 | static boolean_t | |
281 | zfs_is_bootfs(const char *name) | |
282 | { | |
428870ff | 283 | objset_t *os; |
b128c09f | 284 | |
428870ff BB |
285 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
286 | boolean_t ret; | |
287 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
288 | dmu_objset_rele(os, FTAG); | |
289 | return (ret); | |
b128c09f | 290 | } |
428870ff | 291 | return (B_FALSE); |
b128c09f BB |
292 | } |
293 | ||
294 | /* | |
d3cc8b15 | 295 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
296 | */ |
297 | static int | |
b128c09f | 298 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 299 | { |
34dc7c2f BB |
300 | spa_t *spa; |
301 | ||
302 | if (spa_open(name, &spa, FTAG) == 0) { | |
303 | if (spa_version(spa) < version) { | |
304 | spa_close(spa, FTAG); | |
305 | return (1); | |
306 | } | |
307 | spa_close(spa, FTAG); | |
308 | } | |
309 | return (0); | |
310 | } | |
311 | ||
312 | /* | |
b128c09f | 313 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 314 | */ |
b128c09f BB |
315 | static boolean_t |
316 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
317 | { |
318 | objset_t *os; | |
b128c09f | 319 | boolean_t rc = B_TRUE; |
34dc7c2f | 320 | |
428870ff | 321 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 322 | uint64_t zplversion; |
34dc7c2f | 323 | |
428870ff BB |
324 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
325 | dmu_objset_rele(os, FTAG); | |
326 | return (B_TRUE); | |
327 | } | |
328 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
329 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
330 | rc = zplversion < version; | |
428870ff | 331 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
332 | } |
333 | return (rc); | |
334 | } | |
335 | ||
336 | static void | |
337 | zfs_log_history(zfs_cmd_t *zc) | |
338 | { | |
339 | spa_t *spa; | |
340 | char *buf; | |
341 | ||
342 | if ((buf = history_str_get(zc)) == NULL) | |
343 | return; | |
344 | ||
345 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
346 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 347 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
348 | spa_close(spa, FTAG); |
349 | } | |
350 | history_str_free(buf); | |
351 | } | |
352 | ||
353 | /* | |
354 | * Policy for top-level read operations (list pools). Requires no privileges, | |
355 | * and can be used in the local zone, as there is no associated dataset. | |
356 | */ | |
357 | /* ARGSUSED */ | |
358 | static int | |
6f1ffb06 | 359 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
360 | { |
361 | return (0); | |
362 | } | |
363 | ||
364 | /* | |
365 | * Policy for dataset read operations (list children, get statistics). Requires | |
366 | * no privileges, but must be visible in the local zone. | |
367 | */ | |
368 | /* ARGSUSED */ | |
369 | static int | |
6f1ffb06 | 370 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
371 | { |
372 | if (INGLOBALZONE(curproc) || | |
373 | zone_dataset_visible(zc->zc_name, NULL)) | |
374 | return (0); | |
375 | ||
2e528b49 | 376 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
377 | } |
378 | ||
379 | static int | |
572e2857 | 380 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 381 | { |
34dc7c2f BB |
382 | int writable = 1; |
383 | ||
384 | /* | |
385 | * The dataset must be visible by this zone -- check this first | |
386 | * so they don't see EPERM on something they shouldn't know about. | |
387 | */ | |
388 | if (!INGLOBALZONE(curproc) && | |
389 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 390 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 391 | |
34dc7c2f BB |
392 | if (INGLOBALZONE(curproc)) { |
393 | /* | |
394 | * If the fs is zoned, only root can access it from the | |
395 | * global zone. | |
396 | */ | |
397 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 398 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
399 | } else { |
400 | /* | |
401 | * If we are in a local zone, the 'zoned' property must be set. | |
402 | */ | |
403 | if (!zoned) | |
2e528b49 | 404 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
405 | |
406 | /* must be writable by this zone */ | |
407 | if (!writable) | |
2e528b49 | 408 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
409 | } |
410 | return (0); | |
411 | } | |
412 | ||
572e2857 BB |
413 | static int |
414 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
415 | { | |
416 | uint64_t zoned; | |
417 | ||
418 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 419 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
420 | |
421 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
422 | } | |
423 | ||
424 | static int | |
425 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
426 | { | |
427 | uint64_t zoned; | |
428 | ||
13fe0198 | 429 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 430 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
431 | |
432 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
433 | } | |
434 | ||
6f1ffb06 | 435 | static int |
13fe0198 MA |
436 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
437 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
438 | { |
439 | int error; | |
440 | ||
330d06f9 | 441 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
442 | if (error == 0) { |
443 | error = secpolicy_zfs(cr); | |
13fe0198 | 444 | if (error != 0) |
6f1ffb06 | 445 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
446 | } |
447 | return (error); | |
448 | } | |
449 | ||
6f1ffb06 | 450 | static int |
13fe0198 | 451 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
452 | { |
453 | int error; | |
13fe0198 MA |
454 | dsl_dataset_t *ds; |
455 | dsl_pool_t *dp; | |
572e2857 | 456 | |
13fe0198 MA |
457 | error = dsl_pool_hold(name, FTAG, &dp); |
458 | if (error != 0) | |
459 | return (error); | |
460 | ||
461 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
462 | if (error != 0) { | |
463 | dsl_pool_rele(dp, FTAG); | |
464 | return (error); | |
572e2857 | 465 | } |
13fe0198 MA |
466 | |
467 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
468 | ||
469 | dsl_dataset_rele(ds, FTAG); | |
470 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
471 | return (error); |
472 | } | |
473 | ||
428870ff BB |
474 | /* |
475 | * Policy for setting the security label property. | |
476 | * | |
477 | * Returns 0 for success, non-zero for access and other errors. | |
478 | */ | |
34dc7c2f | 479 | static int |
428870ff | 480 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 481 | { |
d2c15e84 | 482 | #ifdef HAVE_MLSLABEL |
428870ff BB |
483 | char ds_hexsl[MAXNAMELEN]; |
484 | bslabel_t ds_sl, new_sl; | |
485 | boolean_t new_default = FALSE; | |
486 | uint64_t zoned; | |
487 | int needed_priv = -1; | |
488 | int error; | |
489 | ||
490 | /* First get the existing dataset label. */ | |
491 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
492 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 493 | if (error != 0) |
2e528b49 | 494 | return (SET_ERROR(EPERM)); |
428870ff BB |
495 | |
496 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
497 | new_default = TRUE; | |
498 | ||
499 | /* The label must be translatable */ | |
500 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 501 | return (SET_ERROR(EINVAL)); |
428870ff BB |
502 | |
503 | /* | |
504 | * In a non-global zone, disallow attempts to set a label that | |
505 | * doesn't match that of the zone; otherwise no other checks | |
506 | * are needed. | |
507 | */ | |
508 | if (!INGLOBALZONE(curproc)) { | |
509 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 510 | return (SET_ERROR(EPERM)); |
428870ff BB |
511 | return (0); |
512 | } | |
513 | ||
514 | /* | |
515 | * For global-zone datasets (i.e., those whose zoned property is | |
516 | * "off", verify that the specified new label is valid for the | |
517 | * global zone. | |
518 | */ | |
519 | if (dsl_prop_get_integer(name, | |
520 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 521 | return (SET_ERROR(EPERM)); |
428870ff BB |
522 | if (!zoned) { |
523 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 524 | return (SET_ERROR(EPERM)); |
428870ff BB |
525 | } |
526 | ||
527 | /* | |
528 | * If the existing dataset label is nondefault, check if the | |
529 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 530 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
531 | * mounted (or isn't a dataset, doesn't exist, ...). |
532 | */ | |
533 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
534 | objset_t *os; | |
535 | static char *setsl_tag = "setsl_tag"; | |
536 | ||
537 | /* | |
538 | * Try to own the dataset; abort if there is any error, | |
539 | * (e.g., already mounted, in use, or other error). | |
540 | */ | |
541 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
542 | setsl_tag, &os); | |
13fe0198 | 543 | if (error != 0) |
2e528b49 | 544 | return (SET_ERROR(EPERM)); |
428870ff BB |
545 | |
546 | dmu_objset_disown(os, setsl_tag); | |
547 | ||
548 | if (new_default) { | |
549 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
550 | goto out_check; | |
551 | } | |
552 | ||
553 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 554 | return (SET_ERROR(EPERM)); |
428870ff BB |
555 | |
556 | if (blstrictdom(&ds_sl, &new_sl)) | |
557 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
558 | else if (blstrictdom(&new_sl, &ds_sl)) | |
559 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
560 | } else { | |
561 | /* dataset currently has a default label */ | |
562 | if (!new_default) | |
563 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
564 | } | |
565 | ||
566 | out_check: | |
567 | if (needed_priv != -1) | |
568 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
569 | return (0); | |
d2c15e84 | 570 | #else |
d1d7e268 | 571 | return (ENOTSUP); |
d2c15e84 | 572 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
573 | } |
574 | ||
575 | static int | |
576 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
577 | cred_t *cr) | |
578 | { | |
579 | char *strval; | |
580 | ||
34dc7c2f BB |
581 | /* |
582 | * Check permissions for special properties. | |
583 | */ | |
584 | switch (prop) { | |
e75c13c3 BB |
585 | default: |
586 | break; | |
34dc7c2f BB |
587 | case ZFS_PROP_ZONED: |
588 | /* | |
589 | * Disallow setting of 'zoned' from within a local zone. | |
590 | */ | |
591 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 592 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
593 | break; |
594 | ||
595 | case ZFS_PROP_QUOTA: | |
596 | if (!INGLOBALZONE(curproc)) { | |
597 | uint64_t zoned; | |
598 | char setpoint[MAXNAMELEN]; | |
599 | /* | |
600 | * Unprivileged users are allowed to modify the | |
601 | * quota on things *under* (ie. contained by) | |
602 | * the thing they own. | |
603 | */ | |
428870ff | 604 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 605 | setpoint)) |
2e528b49 | 606 | return (SET_ERROR(EPERM)); |
428870ff | 607 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 608 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
609 | } |
610 | break; | |
428870ff BB |
611 | |
612 | case ZFS_PROP_MLSLABEL: | |
613 | if (!is_system_labeled()) | |
2e528b49 | 614 | return (SET_ERROR(EPERM)); |
428870ff BB |
615 | |
616 | if (nvpair_value_string(propval, &strval) == 0) { | |
617 | int err; | |
618 | ||
619 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
620 | if (err != 0) | |
621 | return (err); | |
622 | } | |
623 | break; | |
34dc7c2f BB |
624 | } |
625 | ||
428870ff | 626 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
627 | } |
628 | ||
6f1ffb06 MA |
629 | /* ARGSUSED */ |
630 | static int | |
631 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
632 | { |
633 | int error; | |
634 | ||
635 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 636 | if (error != 0) |
34dc7c2f BB |
637 | return (error); |
638 | ||
639 | /* | |
640 | * permission to set permissions will be evaluated later in | |
641 | * dsl_deleg_can_allow() | |
642 | */ | |
643 | return (0); | |
644 | } | |
645 | ||
6f1ffb06 MA |
646 | /* ARGSUSED */ |
647 | static int | |
648 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 649 | { |
428870ff BB |
650 | return (zfs_secpolicy_write_perms(zc->zc_name, |
651 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
652 | } |
653 | ||
6f1ffb06 MA |
654 | /* ARGSUSED */ |
655 | static int | |
656 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 657 | { |
572e2857 BB |
658 | dsl_pool_t *dp; |
659 | dsl_dataset_t *ds; | |
660 | char *cp; | |
661 | int error; | |
662 | ||
663 | /* | |
664 | * Generate the current snapshot name from the given objsetid, then | |
665 | * use that name for the secpolicy/zone checks. | |
666 | */ | |
667 | cp = strchr(zc->zc_name, '@'); | |
668 | if (cp == NULL) | |
2e528b49 | 669 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
670 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
671 | if (error != 0) | |
572e2857 BB |
672 | return (error); |
673 | ||
572e2857 | 674 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
675 | if (error != 0) { |
676 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 677 | return (error); |
13fe0198 | 678 | } |
572e2857 BB |
679 | |
680 | dsl_dataset_name(ds, zc->zc_name); | |
681 | ||
682 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
683 | ZFS_DELEG_PERM_SEND, cr); | |
684 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 685 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
686 | |
687 | return (error); | |
34dc7c2f BB |
688 | } |
689 | ||
6f1ffb06 MA |
690 | /* ARGSUSED */ |
691 | static int | |
692 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
693 | { | |
694 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
695 | ZFS_DELEG_PERM_SEND, cr)); | |
696 | } | |
697 | ||
3c9609b3 | 698 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 699 | /* ARGSUSED */ |
9babb374 | 700 | static int |
6f1ffb06 | 701 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
702 | { |
703 | vnode_t *vp; | |
704 | int error; | |
705 | ||
706 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
707 | NO_FOLLOW, NULL, &vp)) != 0) | |
708 | return (error); | |
709 | ||
710 | /* Now make sure mntpnt and dataset are ZFS */ | |
711 | ||
712 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
713 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
714 | zc->zc_name) != 0)) { | |
715 | VN_RELE(vp); | |
2e528b49 | 716 | return (SET_ERROR(EPERM)); |
9babb374 BB |
717 | } |
718 | ||
719 | VN_RELE(vp); | |
720 | return (dsl_deleg_access(zc->zc_name, | |
721 | ZFS_DELEG_PERM_SHARE, cr)); | |
722 | } | |
3c9609b3 | 723 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 724 | |
34dc7c2f | 725 | int |
6f1ffb06 | 726 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 727 | { |
3c9609b3 | 728 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 729 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 730 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
731 | |
732 | if (secpolicy_nfs(cr) == 0) { | |
733 | return (0); | |
734 | } else { | |
6f1ffb06 | 735 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 736 | } |
325f0235 | 737 | #else |
2e528b49 | 738 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 739 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 740 | } |
34dc7c2f | 741 | |
9babb374 | 742 | int |
6f1ffb06 | 743 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 744 | { |
3c9609b3 | 745 | #ifdef HAVE_SMB_SHARE |
9babb374 | 746 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 747 | return (SET_ERROR(EPERM)); |
34dc7c2f | 748 | |
9babb374 BB |
749 | if (secpolicy_smb(cr) == 0) { |
750 | return (0); | |
751 | } else { | |
6f1ffb06 | 752 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 753 | } |
325f0235 | 754 | #else |
2e528b49 | 755 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 756 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
757 | } |
758 | ||
759 | static int | |
760 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
761 | { | |
762 | char *cp; | |
763 | ||
764 | /* | |
765 | * Remove the @bla or /bla from the end of the name to get the parent. | |
766 | */ | |
767 | (void) strncpy(parent, datasetname, parentsize); | |
768 | cp = strrchr(parent, '@'); | |
769 | if (cp != NULL) { | |
770 | cp[0] = '\0'; | |
771 | } else { | |
772 | cp = strrchr(parent, '/'); | |
773 | if (cp == NULL) | |
2e528b49 | 774 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
775 | cp[0] = '\0'; |
776 | } | |
777 | ||
778 | return (0); | |
779 | } | |
780 | ||
781 | int | |
782 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
783 | { | |
784 | int error; | |
785 | ||
786 | if ((error = zfs_secpolicy_write_perms(name, | |
787 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
788 | return (error); | |
789 | ||
790 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
791 | } | |
792 | ||
6f1ffb06 | 793 | /* ARGSUSED */ |
34dc7c2f | 794 | static int |
6f1ffb06 | 795 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
796 | { |
797 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
798 | } | |
799 | ||
800 | /* | |
428870ff | 801 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 802 | * descendant mount and destroy permissions. |
34dc7c2f | 803 | */ |
6f1ffb06 | 804 | /* ARGSUSED */ |
34dc7c2f | 805 | static int |
6f1ffb06 | 806 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 807 | { |
6f1ffb06 MA |
808 | nvlist_t *snaps; |
809 | nvpair_t *pair, *nextpair; | |
810 | int error = 0; | |
428870ff | 811 | |
6f1ffb06 | 812 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 813 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
814 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
815 | pair = nextpair) { | |
6f1ffb06 | 816 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
817 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
818 | if (error == ENOENT) { | |
6f1ffb06 MA |
819 | /* |
820 | * Ignore any snapshots that don't exist (we consider | |
821 | * them "already destroyed"). Remove the name from the | |
822 | * nvl here in case the snapshot is created between | |
823 | * now and when we try to destroy it (in which case | |
824 | * we don't want to destroy it since we haven't | |
825 | * checked for permission). | |
826 | */ | |
827 | fnvlist_remove_nvpair(snaps, pair); | |
828 | error = 0; | |
6f1ffb06 | 829 | } |
6f1ffb06 MA |
830 | if (error != 0) |
831 | break; | |
832 | } | |
428870ff | 833 | |
428870ff | 834 | return (error); |
34dc7c2f BB |
835 | } |
836 | ||
837 | int | |
838 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
839 | { | |
428870ff | 840 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
841 | int error; |
842 | ||
843 | if ((error = zfs_secpolicy_write_perms(from, | |
844 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
845 | return (error); | |
846 | ||
847 | if ((error = zfs_secpolicy_write_perms(from, | |
848 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
849 | return (error); | |
850 | ||
851 | if ((error = zfs_get_parent(to, parentname, | |
852 | sizeof (parentname))) != 0) | |
853 | return (error); | |
854 | ||
855 | if ((error = zfs_secpolicy_write_perms(parentname, | |
856 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
857 | return (error); | |
858 | ||
859 | if ((error = zfs_secpolicy_write_perms(parentname, | |
860 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
861 | return (error); | |
862 | ||
863 | return (error); | |
864 | } | |
865 | ||
6f1ffb06 | 866 | /* ARGSUSED */ |
34dc7c2f | 867 | static int |
6f1ffb06 | 868 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
869 | { |
870 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
871 | } | |
872 | ||
6f1ffb06 | 873 | /* ARGSUSED */ |
34dc7c2f | 874 | static int |
6f1ffb06 | 875 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 876 | { |
13fe0198 MA |
877 | dsl_pool_t *dp; |
878 | dsl_dataset_t *clone; | |
34dc7c2f BB |
879 | int error; |
880 | ||
881 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
882 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
883 | if (error != 0) |
884 | return (error); | |
885 | ||
886 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
887 | if (error != 0) | |
34dc7c2f BB |
888 | return (error); |
889 | ||
13fe0198 | 890 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
891 | |
892 | if (error == 0) { | |
13fe0198 MA |
893 | char parentname[MAXNAMELEN]; |
894 | dsl_dataset_t *origin = NULL; | |
34dc7c2f | 895 | dsl_dir_t *dd; |
13fe0198 | 896 | dd = clone->ds_dir; |
34dc7c2f | 897 | |
b128c09f | 898 | error = dsl_dataset_hold_obj(dd->dd_pool, |
13fe0198 MA |
899 | dd->dd_phys->dd_origin_obj, FTAG, &origin); |
900 | if (error != 0) { | |
901 | dsl_dataset_rele(clone, FTAG); | |
902 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
903 | return (error); |
904 | } | |
905 | ||
13fe0198 | 906 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
907 | ZFS_DELEG_PERM_MOUNT, cr); |
908 | ||
13fe0198 MA |
909 | dsl_dataset_name(origin, parentname); |
910 | if (error == 0) { | |
911 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 912 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
913 | } |
914 | dsl_dataset_rele(clone, FTAG); | |
915 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 916 | } |
13fe0198 | 917 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
918 | return (error); |
919 | } | |
920 | ||
6f1ffb06 | 921 | /* ARGSUSED */ |
34dc7c2f | 922 | static int |
6f1ffb06 | 923 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
924 | { |
925 | int error; | |
926 | ||
927 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
928 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
929 | return (error); | |
930 | ||
931 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
932 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
933 | return (error); | |
934 | ||
935 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
936 | ZFS_DELEG_PERM_CREATE, cr)); | |
937 | } | |
938 | ||
939 | int | |
940 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
941 | { | |
428870ff BB |
942 | return (zfs_secpolicy_write_perms(name, |
943 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
944 | } |
945 | ||
6f1ffb06 MA |
946 | /* |
947 | * Check for permission to create each snapshot in the nvlist. | |
948 | */ | |
949 | /* ARGSUSED */ | |
34dc7c2f | 950 | static int |
6f1ffb06 | 951 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 952 | { |
6f1ffb06 MA |
953 | nvlist_t *snaps; |
954 | int error = 0; | |
955 | nvpair_t *pair; | |
956 | ||
957 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 958 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
959 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
960 | pair = nvlist_next_nvpair(snaps, pair)) { | |
961 | char *name = nvpair_name(pair); | |
962 | char *atp = strchr(name, '@'); | |
34dc7c2f | 963 | |
6f1ffb06 | 964 | if (atp == NULL) { |
2e528b49 | 965 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
966 | break; |
967 | } | |
968 | *atp = '\0'; | |
969 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
970 | *atp = '@'; | |
971 | if (error != 0) | |
972 | break; | |
973 | } | |
974 | return (error); | |
975 | } | |
976 | ||
da536844 MA |
977 | /* |
978 | * Check for permission to create each snapshot in the nvlist. | |
979 | */ | |
980 | /* ARGSUSED */ | |
981 | static int | |
982 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
983 | { | |
984 | int error = 0; | |
985 | nvpair_t *pair; | |
986 | ||
987 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
988 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
989 | char *name = nvpair_name(pair); | |
990 | char *hashp = strchr(name, '#'); | |
991 | ||
992 | if (hashp == NULL) { | |
993 | error = SET_ERROR(EINVAL); | |
994 | break; | |
995 | } | |
996 | *hashp = '\0'; | |
997 | error = zfs_secpolicy_write_perms(name, | |
998 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
999 | *hashp = '#'; | |
1000 | if (error != 0) | |
1001 | break; | |
1002 | } | |
1003 | return (error); | |
1004 | } | |
1005 | ||
1006 | /* ARGSUSED */ | |
1007 | static int | |
1008 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1009 | { | |
1010 | nvpair_t *pair, *nextpair; | |
1011 | int error = 0; | |
1012 | ||
1013 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1014 | pair = nextpair) { | |
1015 | char *name = nvpair_name(pair); | |
1016 | char *hashp = strchr(name, '#'); | |
1017 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1018 | ||
1019 | if (hashp == NULL) { | |
1020 | error = SET_ERROR(EINVAL); | |
1021 | break; | |
1022 | } | |
1023 | ||
1024 | *hashp = '\0'; | |
1025 | error = zfs_secpolicy_write_perms(name, | |
1026 | ZFS_DELEG_PERM_DESTROY, cr); | |
1027 | *hashp = '#'; | |
1028 | if (error == ENOENT) { | |
1029 | /* | |
1030 | * Ignore any filesystems that don't exist (we consider | |
1031 | * their bookmarks "already destroyed"). Remove | |
1032 | * the name from the nvl here in case the filesystem | |
1033 | * is created between now and when we try to destroy | |
1034 | * the bookmark (in which case we don't want to | |
1035 | * destroy it since we haven't checked for permission). | |
1036 | */ | |
1037 | fnvlist_remove_nvpair(innvl, pair); | |
1038 | error = 0; | |
1039 | } | |
1040 | if (error != 0) | |
1041 | break; | |
1042 | } | |
1043 | ||
1044 | return (error); | |
1045 | } | |
1046 | ||
6f1ffb06 MA |
1047 | /* ARGSUSED */ |
1048 | static int | |
1049 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1050 | { | |
1051 | /* | |
1052 | * Even root must have a proper TSD so that we know what pool | |
1053 | * to log to. | |
1054 | */ | |
1055 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1056 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1057 | return (0); |
34dc7c2f BB |
1058 | } |
1059 | ||
1060 | static int | |
6f1ffb06 | 1061 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1062 | { |
428870ff BB |
1063 | char parentname[MAXNAMELEN]; |
1064 | int error; | |
6f1ffb06 | 1065 | char *origin; |
34dc7c2f BB |
1066 | |
1067 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1068 | sizeof (parentname))) != 0) | |
1069 | return (error); | |
1070 | ||
6f1ffb06 MA |
1071 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1072 | (error = zfs_secpolicy_write_perms(origin, | |
1073 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1074 | return (error); | |
34dc7c2f BB |
1075 | |
1076 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1077 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1078 | return (error); | |
1079 | ||
6f1ffb06 MA |
1080 | return (zfs_secpolicy_write_perms(parentname, |
1081 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1082 | } |
1083 | ||
34dc7c2f BB |
1084 | /* |
1085 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1086 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1087 | */ | |
1088 | /* ARGSUSED */ | |
1089 | static int | |
6f1ffb06 | 1090 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1091 | { |
1092 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1093 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1094 | |
1095 | return (0); | |
1096 | } | |
1097 | ||
572e2857 BB |
1098 | /* |
1099 | * Policy for object to name lookups. | |
1100 | */ | |
1101 | /* ARGSUSED */ | |
1102 | static int | |
6f1ffb06 | 1103 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1104 | { |
1105 | int error; | |
1106 | ||
1107 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1108 | return (0); | |
1109 | ||
1110 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1111 | return (error); | |
1112 | } | |
1113 | ||
34dc7c2f BB |
1114 | /* |
1115 | * Policy for fault injection. Requires all privileges. | |
1116 | */ | |
1117 | /* ARGSUSED */ | |
1118 | static int | |
6f1ffb06 | 1119 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1120 | { |
1121 | return (secpolicy_zinject(cr)); | |
1122 | } | |
1123 | ||
6f1ffb06 | 1124 | /* ARGSUSED */ |
34dc7c2f | 1125 | static int |
6f1ffb06 | 1126 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1127 | { |
1128 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1129 | ||
1130 | if (prop == ZPROP_INVAL) { | |
1131 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1132 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1133 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1134 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1135 | } else { | |
428870ff BB |
1136 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1137 | NULL, cr)); | |
34dc7c2f BB |
1138 | } |
1139 | } | |
1140 | ||
9babb374 | 1141 | static int |
6f1ffb06 | 1142 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1143 | { |
6f1ffb06 | 1144 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1145 | if (err) |
1146 | return (err); | |
1147 | ||
1148 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1149 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1150 | |
1151 | if (zc->zc_value[0] == 0) { | |
1152 | /* | |
1153 | * They are asking about a posix uid/gid. If it's | |
1154 | * themself, allow it. | |
1155 | */ | |
1156 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1157 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
1158 | if (zc->zc_guid == crgetuid(cr)) | |
1159 | return (0); | |
1160 | } else { | |
1161 | if (groupmember(zc->zc_guid, cr)) | |
1162 | return (0); | |
1163 | } | |
1164 | } | |
1165 | ||
1166 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1167 | userquota_perms[zc->zc_objset_type], cr)); | |
1168 | } | |
1169 | ||
1170 | static int | |
6f1ffb06 | 1171 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1172 | { |
6f1ffb06 | 1173 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1174 | if (err) |
1175 | return (err); | |
1176 | ||
1177 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1178 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1179 | |
1180 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1181 | userquota_perms[zc->zc_objset_type], cr)); | |
1182 | } | |
1183 | ||
6f1ffb06 | 1184 | /* ARGSUSED */ |
9babb374 | 1185 | static int |
6f1ffb06 | 1186 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1187 | { |
428870ff BB |
1188 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1189 | NULL, cr)); | |
9babb374 BB |
1190 | } |
1191 | ||
6f1ffb06 | 1192 | /* ARGSUSED */ |
45d1cae3 | 1193 | static int |
6f1ffb06 | 1194 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1195 | { |
13fe0198 MA |
1196 | nvpair_t *pair; |
1197 | nvlist_t *holds; | |
1198 | int error; | |
1199 | ||
1200 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1201 | if (error != 0) | |
2e528b49 | 1202 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
1203 | |
1204 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1205 | pair = nvlist_next_nvpair(holds, pair)) { | |
1206 | char fsname[MAXNAMELEN]; | |
1207 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1208 | if (error != 0) | |
1209 | return (error); | |
1210 | error = zfs_secpolicy_write_perms(fsname, | |
1211 | ZFS_DELEG_PERM_HOLD, cr); | |
1212 | if (error != 0) | |
1213 | return (error); | |
1214 | } | |
1215 | return (0); | |
45d1cae3 BB |
1216 | } |
1217 | ||
6f1ffb06 | 1218 | /* ARGSUSED */ |
45d1cae3 | 1219 | static int |
6f1ffb06 | 1220 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1221 | { |
13fe0198 MA |
1222 | nvpair_t *pair; |
1223 | int error; | |
1224 | ||
1225 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1226 | pair = nvlist_next_nvpair(innvl, pair)) { | |
1227 | char fsname[MAXNAMELEN]; | |
1228 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1229 | if (error != 0) | |
1230 | return (error); | |
1231 | error = zfs_secpolicy_write_perms(fsname, | |
1232 | ZFS_DELEG_PERM_RELEASE, cr); | |
1233 | if (error != 0) | |
1234 | return (error); | |
1235 | } | |
1236 | return (0); | |
45d1cae3 BB |
1237 | } |
1238 | ||
572e2857 BB |
1239 | /* |
1240 | * Policy for allowing temporary snapshots to be taken or released | |
1241 | */ | |
1242 | static int | |
6f1ffb06 | 1243 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1244 | { |
1245 | /* | |
1246 | * A temporary snapshot is the same as a snapshot, | |
1247 | * hold, destroy and release all rolled into one. | |
1248 | * Delegated diff alone is sufficient that we allow this. | |
1249 | */ | |
1250 | int error; | |
1251 | ||
1252 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1253 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1254 | return (0); | |
1255 | ||
6f1ffb06 | 1256 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1257 | if (error == 0) |
6f1ffb06 | 1258 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1259 | if (error == 0) |
6f1ffb06 | 1260 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1261 | if (error == 0) |
6f1ffb06 | 1262 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1263 | return (error); |
1264 | } | |
1265 | ||
34dc7c2f BB |
1266 | /* |
1267 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1268 | */ | |
1269 | static int | |
9babb374 | 1270 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1271 | { |
1272 | char *packed; | |
1273 | int error; | |
1274 | nvlist_t *list = NULL; | |
1275 | ||
1276 | /* | |
1277 | * Read in and unpack the user-supplied nvlist. | |
1278 | */ | |
1279 | if (size == 0) | |
2e528b49 | 1280 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1281 | |
00b46022 | 1282 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 1283 | |
9babb374 BB |
1284 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1285 | iflag)) != 0) { | |
34dc7c2f BB |
1286 | kmem_free(packed, size); |
1287 | return (error); | |
1288 | } | |
1289 | ||
1290 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
1291 | kmem_free(packed, size); | |
1292 | return (error); | |
1293 | } | |
1294 | ||
1295 | kmem_free(packed, size); | |
1296 | ||
1297 | *nvp = list; | |
1298 | return (0); | |
1299 | } | |
1300 | ||
6f1ffb06 MA |
1301 | /* |
1302 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1303 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1304 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1305 | * removed. | |
1306 | */ | |
428870ff | 1307 | static int |
6f1ffb06 | 1308 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1309 | { |
1310 | size_t size; | |
1311 | ||
6f1ffb06 | 1312 | size = fnvlist_size(errors); |
428870ff | 1313 | |
6f1ffb06 | 1314 | if (size > max) { |
428870ff BB |
1315 | nvpair_t *more_errors; |
1316 | int n = 0; | |
1317 | ||
6f1ffb06 | 1318 | if (max < 1024) |
2e528b49 | 1319 | return (SET_ERROR(ENOMEM)); |
428870ff | 1320 | |
6f1ffb06 MA |
1321 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1322 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1323 | |
1324 | do { | |
6f1ffb06 | 1325 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1326 | more_errors); |
6f1ffb06 | 1327 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1328 | n++; |
6f1ffb06 MA |
1329 | size = fnvlist_size(errors); |
1330 | } while (size > max); | |
428870ff | 1331 | |
6f1ffb06 MA |
1332 | fnvlist_remove_nvpair(errors, more_errors); |
1333 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1334 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1335 | } |
1336 | ||
1337 | return (0); | |
1338 | } | |
1339 | ||
34dc7c2f BB |
1340 | static int |
1341 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1342 | { | |
1343 | char *packed = NULL; | |
428870ff | 1344 | int error = 0; |
34dc7c2f | 1345 | size_t size; |
34dc7c2f | 1346 | |
6f1ffb06 | 1347 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1348 | |
1349 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1350 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1351 | } else { |
6f1ffb06 | 1352 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1353 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1354 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1355 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1356 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1357 | } |
1358 | ||
1359 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1360 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1361 | return (error); |
1362 | } | |
1363 | ||
9babb374 | 1364 | static int |
3558fd73 | 1365 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1366 | { |
1367 | objset_t *os; | |
1368 | int error; | |
1369 | ||
428870ff | 1370 | error = dmu_objset_hold(dsname, FTAG, &os); |
13fe0198 | 1371 | if (error != 0) |
9babb374 | 1372 | return (error); |
428870ff BB |
1373 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1374 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1375 | return (SET_ERROR(EINVAL)); |
428870ff | 1376 | } |
9babb374 | 1377 | |
428870ff | 1378 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1379 | *zsbp = dmu_objset_get_user(os); |
2cf7f52b | 1380 | if (*zsbp && (*zsbp)->z_sb) { |
61f218b0 | 1381 | atomic_inc(&((*zsbp)->z_sb->s_active)); |
9babb374 | 1382 | } else { |
2e528b49 | 1383 | error = SET_ERROR(ESRCH); |
9babb374 | 1384 | } |
428870ff BB |
1385 | mutex_exit(&os->os_user_ptr_lock); |
1386 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1387 | return (error); |
1388 | } | |
1389 | ||
1390 | /* | |
3558fd73 | 1391 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1392 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1393 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1394 | * which prevents all inode ops from running. | |
9babb374 BB |
1395 | */ |
1396 | static int | |
3558fd73 | 1397 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1398 | { |
1399 | int error = 0; | |
9babb374 | 1400 | |
3558fd73 BB |
1401 | if (get_zfs_sb(name, zsbp) != 0) |
1402 | error = zfs_sb_create(name, zsbp); | |
9babb374 | 1403 | if (error == 0) { |
3558fd73 | 1404 | rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1405 | RW_READER, tag); |
3558fd73 | 1406 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1407 | /* |
1408 | * XXX we could probably try again, since the unmounting | |
1409 | * thread should be just about to disassociate the | |
831baf06 | 1410 | * objset from the zsb. |
9babb374 | 1411 | */ |
3558fd73 | 1412 | rrw_exit(&(*zsbp)->z_teardown_lock, tag); |
2e528b49 | 1413 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1414 | } |
1415 | } | |
1416 | return (error); | |
1417 | } | |
1418 | ||
1419 | static void | |
3558fd73 | 1420 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1421 | { |
3558fd73 | 1422 | rrw_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1423 | |
2cf7f52b BB |
1424 | if (zsb->z_sb) { |
1425 | deactivate_super(zsb->z_sb); | |
9babb374 | 1426 | } else { |
3558fd73 BB |
1427 | dmu_objset_disown(zsb->z_os, zsb); |
1428 | zfs_sb_free(zsb); | |
9babb374 BB |
1429 | } |
1430 | } | |
1431 | ||
34dc7c2f BB |
1432 | static int |
1433 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1434 | { | |
1435 | int error; | |
1436 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1437 | nvlist_t *rootprops = NULL; |
1438 | nvlist_t *zplprops = NULL; | |
34dc7c2f | 1439 | |
c65aa5b2 BB |
1440 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1441 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1442 | return (error); |
1443 | ||
1444 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1445 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1446 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1447 | nvlist_free(config); |
1448 | return (error); | |
1449 | } | |
1450 | ||
b128c09f BB |
1451 | if (props) { |
1452 | nvlist_t *nvl = NULL; | |
1453 | uint64_t version = SPA_VERSION; | |
1454 | ||
1455 | (void) nvlist_lookup_uint64(props, | |
1456 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1457 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1458 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1459 | goto pool_props_bad; |
1460 | } | |
1461 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1462 | if (nvl) { | |
1463 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1464 | if (error != 0) { | |
1465 | nvlist_free(config); | |
1466 | nvlist_free(props); | |
1467 | return (error); | |
1468 | } | |
1469 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1470 | } | |
1471 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1472 | error = zfs_fill_zplprops_root(version, rootprops, | |
1473 | zplprops, NULL); | |
13fe0198 | 1474 | if (error != 0) |
b128c09f BB |
1475 | goto pool_props_bad; |
1476 | } | |
1477 | ||
6f1ffb06 | 1478 | error = spa_create(zc->zc_name, config, props, zplprops); |
b128c09f BB |
1479 | |
1480 | /* | |
1481 | * Set the remaining root properties | |
1482 | */ | |
428870ff BB |
1483 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1484 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1485 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1486 | |
b128c09f BB |
1487 | pool_props_bad: |
1488 | nvlist_free(rootprops); | |
1489 | nvlist_free(zplprops); | |
34dc7c2f | 1490 | nvlist_free(config); |
b128c09f | 1491 | nvlist_free(props); |
34dc7c2f BB |
1492 | |
1493 | return (error); | |
1494 | } | |
1495 | ||
1496 | static int | |
1497 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1498 | { | |
1499 | int error; | |
1500 | zfs_log_history(zc); | |
1501 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1502 | if (error == 0) |
1503 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1504 | return (error); |
1505 | } | |
1506 | ||
1507 | static int | |
1508 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1509 | { | |
34dc7c2f BB |
1510 | nvlist_t *config, *props = NULL; |
1511 | uint64_t guid; | |
428870ff | 1512 | int error; |
34dc7c2f BB |
1513 | |
1514 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1515 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1516 | return (error); |
1517 | ||
1518 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1519 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1520 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1521 | nvlist_free(config); |
1522 | return (error); | |
1523 | } | |
1524 | ||
1525 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1526 | guid != zc->zc_guid) | |
2e528b49 | 1527 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1528 | else |
572e2857 | 1529 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1530 | |
572e2857 BB |
1531 | if (zc->zc_nvlist_dst != 0) { |
1532 | int err; | |
1533 | ||
1534 | if ((err = put_nvlist(zc, config)) != 0) | |
1535 | error = err; | |
1536 | } | |
428870ff | 1537 | |
34dc7c2f BB |
1538 | nvlist_free(config); |
1539 | ||
1540 | if (props) | |
1541 | nvlist_free(props); | |
1542 | ||
1543 | return (error); | |
1544 | } | |
1545 | ||
1546 | static int | |
1547 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1548 | { | |
1549 | int error; | |
b128c09f | 1550 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1551 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1552 | |
34dc7c2f | 1553 | zfs_log_history(zc); |
fb5f0bc8 | 1554 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1555 | if (error == 0) |
1556 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1557 | return (error); |
1558 | } | |
1559 | ||
1560 | static int | |
1561 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1562 | { | |
1563 | nvlist_t *configs; | |
1564 | int error; | |
1565 | ||
1566 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1567 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1568 | |
1569 | error = put_nvlist(zc, configs); | |
1570 | ||
1571 | nvlist_free(configs); | |
1572 | ||
1573 | return (error); | |
1574 | } | |
1575 | ||
9ae529ec CS |
1576 | /* |
1577 | * inputs: | |
1578 | * zc_name name of the pool | |
1579 | * | |
1580 | * outputs: | |
1581 | * zc_cookie real errno | |
1582 | * zc_nvlist_dst config nvlist | |
1583 | * zc_nvlist_dst_size size of config nvlist | |
1584 | */ | |
34dc7c2f BB |
1585 | static int |
1586 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1587 | { | |
1588 | nvlist_t *config; | |
1589 | int error; | |
1590 | int ret = 0; | |
1591 | ||
1592 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1593 | sizeof (zc->zc_value)); | |
1594 | ||
1595 | if (config != NULL) { | |
1596 | ret = put_nvlist(zc, config); | |
1597 | nvlist_free(config); | |
1598 | ||
1599 | /* | |
1600 | * The config may be present even if 'error' is non-zero. | |
1601 | * In this case we return success, and preserve the real errno | |
1602 | * in 'zc_cookie'. | |
1603 | */ | |
1604 | zc->zc_cookie = error; | |
1605 | } else { | |
1606 | ret = error; | |
1607 | } | |
1608 | ||
1609 | return (ret); | |
1610 | } | |
1611 | ||
1612 | /* | |
1613 | * Try to import the given pool, returning pool stats as appropriate so that | |
1614 | * user land knows which devices are available and overall pool health. | |
1615 | */ | |
1616 | static int | |
1617 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1618 | { | |
1619 | nvlist_t *tryconfig, *config; | |
1620 | int error; | |
1621 | ||
1622 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1623 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1624 | return (error); |
1625 | ||
1626 | config = spa_tryimport(tryconfig); | |
1627 | ||
1628 | nvlist_free(tryconfig); | |
1629 | ||
1630 | if (config == NULL) | |
2e528b49 | 1631 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1632 | |
1633 | error = put_nvlist(zc, config); | |
1634 | nvlist_free(config); | |
1635 | ||
1636 | return (error); | |
1637 | } | |
1638 | ||
428870ff BB |
1639 | /* |
1640 | * inputs: | |
1641 | * zc_name name of the pool | |
1642 | * zc_cookie scan func (pool_scan_func_t) | |
1643 | */ | |
34dc7c2f | 1644 | static int |
428870ff | 1645 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1646 | { |
1647 | spa_t *spa; | |
1648 | int error; | |
1649 | ||
1650 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1651 | return (error); | |
1652 | ||
428870ff BB |
1653 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1654 | error = spa_scan_stop(spa); | |
1655 | else | |
1656 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1657 | |
1658 | spa_close(spa, FTAG); | |
1659 | ||
1660 | return (error); | |
1661 | } | |
1662 | ||
1663 | static int | |
1664 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1665 | { | |
1666 | spa_t *spa; | |
1667 | int error; | |
1668 | ||
1669 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1670 | if (error == 0) { | |
1671 | spa_freeze(spa); | |
1672 | spa_close(spa, FTAG); | |
1673 | } | |
1674 | return (error); | |
1675 | } | |
1676 | ||
1677 | static int | |
1678 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1679 | { | |
1680 | spa_t *spa; | |
1681 | int error; | |
1682 | ||
1683 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1684 | return (error); | |
1685 | ||
9ae529ec CS |
1686 | if (zc->zc_cookie < spa_version(spa) || |
1687 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1688 | spa_close(spa, FTAG); |
2e528b49 | 1689 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1690 | } |
1691 | ||
1692 | spa_upgrade(spa, zc->zc_cookie); | |
1693 | spa_close(spa, FTAG); | |
1694 | ||
1695 | return (error); | |
1696 | } | |
1697 | ||
1698 | static int | |
1699 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1700 | { | |
1701 | spa_t *spa; | |
1702 | char *hist_buf; | |
1703 | uint64_t size; | |
1704 | int error; | |
1705 | ||
1706 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1707 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1708 | |
1709 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1710 | return (error); | |
1711 | ||
1712 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1713 | spa_close(spa, FTAG); | |
2e528b49 | 1714 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1715 | } |
1716 | ||
34b84cb8 | 1717 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1718 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1719 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1720 | error = ddi_copyout(hist_buf, |
1721 | (void *)(uintptr_t)zc->zc_history, | |
1722 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1723 | } |
1724 | ||
1725 | spa_close(spa, FTAG); | |
34b84cb8 | 1726 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1727 | return (error); |
1728 | } | |
1729 | ||
3541dc6d GA |
1730 | static int |
1731 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1732 | { | |
1733 | spa_t *spa; | |
1734 | int error; | |
1735 | ||
1736 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1737 | if (error == 0) { | |
1738 | error = spa_change_guid(spa); | |
1739 | spa_close(spa, FTAG); | |
1740 | } | |
1741 | return (error); | |
1742 | } | |
1743 | ||
34dc7c2f BB |
1744 | static int |
1745 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1746 | { | |
13fe0198 | 1747 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1748 | } |
1749 | ||
428870ff BB |
1750 | /* |
1751 | * inputs: | |
1752 | * zc_name name of filesystem | |
1753 | * zc_obj object to find | |
1754 | * | |
1755 | * outputs: | |
1756 | * zc_value name of object | |
1757 | */ | |
34dc7c2f BB |
1758 | static int |
1759 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1760 | { | |
428870ff | 1761 | objset_t *os; |
34dc7c2f BB |
1762 | int error; |
1763 | ||
428870ff BB |
1764 | /* XXX reading from objset not owned */ |
1765 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1766 | return (error); |
428870ff BB |
1767 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1768 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1769 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1770 | } |
1771 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1772 | sizeof (zc->zc_value)); |
428870ff | 1773 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1774 | |
1775 | return (error); | |
1776 | } | |
1777 | ||
572e2857 BB |
1778 | /* |
1779 | * inputs: | |
1780 | * zc_name name of filesystem | |
1781 | * zc_obj object to find | |
1782 | * | |
1783 | * outputs: | |
1784 | * zc_stat stats on object | |
1785 | * zc_value path to object | |
1786 | */ | |
1787 | static int | |
1788 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1789 | { | |
1790 | objset_t *os; | |
1791 | int error; | |
1792 | ||
1793 | /* XXX reading from objset not owned */ | |
1794 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1795 | return (error); | |
1796 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1797 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1798 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1799 | } |
1800 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1801 | sizeof (zc->zc_value)); | |
1802 | dmu_objset_rele(os, FTAG); | |
1803 | ||
1804 | return (error); | |
1805 | } | |
1806 | ||
34dc7c2f BB |
1807 | static int |
1808 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1809 | { | |
1810 | spa_t *spa; | |
1811 | int error; | |
64ad2b26 | 1812 | nvlist_t *config; |
34dc7c2f BB |
1813 | |
1814 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1815 | if (error != 0) | |
1816 | return (error); | |
1817 | ||
1818 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1819 | zc->zc_iflags, &config); |
34dc7c2f BB |
1820 | if (error == 0) { |
1821 | error = spa_vdev_add(spa, config); | |
1822 | nvlist_free(config); | |
1823 | } | |
1824 | spa_close(spa, FTAG); | |
1825 | return (error); | |
1826 | } | |
1827 | ||
428870ff BB |
1828 | /* |
1829 | * inputs: | |
1830 | * zc_name name of the pool | |
1831 | * zc_nvlist_conf nvlist of devices to remove | |
1832 | * zc_cookie to stop the remove? | |
1833 | */ | |
34dc7c2f BB |
1834 | static int |
1835 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1836 | { | |
1837 | spa_t *spa; | |
1838 | int error; | |
1839 | ||
1840 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1841 | if (error != 0) | |
1842 | return (error); | |
1843 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1844 | spa_close(spa, FTAG); | |
1845 | return (error); | |
1846 | } | |
1847 | ||
1848 | static int | |
1849 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1850 | { | |
1851 | spa_t *spa; | |
1852 | int error; | |
1853 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1854 | ||
1855 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1856 | return (error); | |
1857 | switch (zc->zc_cookie) { | |
1858 | case VDEV_STATE_ONLINE: | |
1859 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1860 | break; | |
1861 | ||
1862 | case VDEV_STATE_OFFLINE: | |
1863 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1864 | break; | |
1865 | ||
1866 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1867 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1868 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1869 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1870 | ||
1871 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1872 | break; |
1873 | ||
1874 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1875 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1876 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1877 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1878 | ||
1879 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1880 | break; |
1881 | ||
1882 | default: | |
2e528b49 | 1883 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
1884 | } |
1885 | zc->zc_cookie = newstate; | |
1886 | spa_close(spa, FTAG); | |
1887 | return (error); | |
1888 | } | |
1889 | ||
1890 | static int | |
1891 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1892 | { | |
1893 | spa_t *spa; | |
1894 | int replacing = zc->zc_cookie; | |
1895 | nvlist_t *config; | |
1896 | int error; | |
1897 | ||
1898 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1899 | return (error); | |
1900 | ||
1901 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1902 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1903 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1904 | nvlist_free(config); | |
1905 | } | |
1906 | ||
1907 | spa_close(spa, FTAG); | |
1908 | return (error); | |
1909 | } | |
1910 | ||
1911 | static int | |
1912 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1913 | { | |
1914 | spa_t *spa; | |
1915 | int error; | |
1916 | ||
1917 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1918 | return (error); | |
1919 | ||
fb5f0bc8 | 1920 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1921 | |
1922 | spa_close(spa, FTAG); | |
1923 | return (error); | |
1924 | } | |
1925 | ||
428870ff BB |
1926 | static int |
1927 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1928 | { | |
1929 | spa_t *spa; | |
1930 | nvlist_t *config, *props = NULL; | |
1931 | int error; | |
1932 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1933 | ||
1934 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1935 | return (error); | |
1936 | ||
c65aa5b2 BB |
1937 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1938 | zc->zc_iflags, &config))) { | |
428870ff BB |
1939 | spa_close(spa, FTAG); |
1940 | return (error); | |
1941 | } | |
1942 | ||
1943 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1944 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1945 | zc->zc_iflags, &props))) { | |
1946 | spa_close(spa, FTAG); | |
1947 | nvlist_free(config); | |
1948 | return (error); | |
1949 | } | |
1950 | ||
1951 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1952 | ||
1953 | spa_close(spa, FTAG); | |
1954 | ||
1955 | nvlist_free(config); | |
1956 | nvlist_free(props); | |
1957 | ||
1958 | return (error); | |
1959 | } | |
1960 | ||
34dc7c2f BB |
1961 | static int |
1962 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1963 | { | |
1964 | spa_t *spa; | |
1965 | char *path = zc->zc_value; | |
1966 | uint64_t guid = zc->zc_guid; | |
1967 | int error; | |
1968 | ||
1969 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1970 | if (error != 0) | |
1971 | return (error); | |
1972 | ||
1973 | error = spa_vdev_setpath(spa, guid, path); | |
1974 | spa_close(spa, FTAG); | |
1975 | return (error); | |
1976 | } | |
1977 | ||
9babb374 BB |
1978 | static int |
1979 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1980 | { | |
1981 | spa_t *spa; | |
1982 | char *fru = zc->zc_value; | |
1983 | uint64_t guid = zc->zc_guid; | |
1984 | int error; | |
1985 | ||
1986 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1987 | if (error != 0) | |
1988 | return (error); | |
1989 | ||
1990 | error = spa_vdev_setfru(spa, guid, fru); | |
1991 | spa_close(spa, FTAG); | |
1992 | return (error); | |
1993 | } | |
1994 | ||
34dc7c2f | 1995 | static int |
572e2857 | 1996 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 1997 | { |
572e2857 | 1998 | int error = 0; |
34dc7c2f BB |
1999 | nvlist_t *nv; |
2000 | ||
34dc7c2f BB |
2001 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2002 | ||
2003 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2004 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2005 | dmu_objset_stats(os, nv); |
2006 | /* | |
2007 | * NB: zvol_get_stats() will read the objset contents, | |
2008 | * which we aren't supposed to do with a | |
b128c09f | 2009 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2010 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2011 | * XXX reading with out owning |
34dc7c2f | 2012 | */ |
330d06f9 MA |
2013 | if (!zc->zc_objset_stats.dds_inconsistent && |
2014 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2015 | error = zvol_get_stats(os, nv); | |
2016 | if (error == EIO) | |
2017 | return (error); | |
c99c9001 | 2018 | VERIFY0(error); |
34dc7c2f | 2019 | } |
8a8f5c6b BB |
2020 | if (error == 0) |
2021 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2022 | nvlist_free(nv); |
2023 | } | |
2024 | ||
572e2857 BB |
2025 | return (error); |
2026 | } | |
2027 | ||
2028 | /* | |
2029 | * inputs: | |
2030 | * zc_name name of filesystem | |
2031 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2032 | * | |
2033 | * outputs: | |
2034 | * zc_objset_stats stats | |
2035 | * zc_nvlist_dst property nvlist | |
2036 | * zc_nvlist_dst_size size of property nvlist | |
2037 | */ | |
2038 | static int | |
2039 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2040 | { | |
13fe0198 | 2041 | objset_t *os; |
572e2857 BB |
2042 | int error; |
2043 | ||
13fe0198 MA |
2044 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2045 | if (error == 0) { | |
2046 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2047 | dmu_objset_rele(os, FTAG); | |
2048 | } | |
572e2857 | 2049 | |
428870ff BB |
2050 | return (error); |
2051 | } | |
2052 | ||
2053 | /* | |
2054 | * inputs: | |
2055 | * zc_name name of filesystem | |
2056 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2057 | * | |
2058 | * outputs: | |
2059 | * zc_nvlist_dst received property nvlist | |
2060 | * zc_nvlist_dst_size size of received property nvlist | |
2061 | * | |
2062 | * Gets received properties (distinct from local properties on or after | |
2063 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2064 | * local property values. | |
2065 | */ | |
2066 | static int | |
26685276 | 2067 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2068 | { |
13fe0198 | 2069 | int error = 0; |
428870ff BB |
2070 | nvlist_t *nv; |
2071 | ||
428870ff BB |
2072 | /* |
2073 | * Without this check, we would return local property values if the | |
2074 | * caller has not already received properties on or after | |
2075 | * SPA_VERSION_RECVD_PROPS. | |
2076 | */ | |
13fe0198 | 2077 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2078 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2079 | |
2080 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2081 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2082 | error = put_nvlist(zc, nv); |
2083 | nvlist_free(nv); | |
2084 | } | |
2085 | ||
34dc7c2f BB |
2086 | return (error); |
2087 | } | |
2088 | ||
2089 | static int | |
2090 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2091 | { | |
2092 | uint64_t value; | |
2093 | int error; | |
2094 | ||
2095 | /* | |
2096 | * zfs_get_zplprop() will either find a value or give us | |
2097 | * the default value (if there is one). | |
2098 | */ | |
2099 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2100 | return (error); | |
2101 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2102 | return (0); | |
2103 | } | |
2104 | ||
2105 | /* | |
2106 | * inputs: | |
2107 | * zc_name name of filesystem | |
2108 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2109 | * | |
2110 | * outputs: | |
2111 | * zc_nvlist_dst zpl property nvlist | |
2112 | * zc_nvlist_dst_size size of zpl property nvlist | |
2113 | */ | |
2114 | static int | |
2115 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2116 | { | |
2117 | objset_t *os; | |
2118 | int err; | |
2119 | ||
428870ff | 2120 | /* XXX reading without owning */ |
c65aa5b2 | 2121 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2122 | return (err); |
2123 | ||
2124 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2125 | ||
2126 | /* | |
2127 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2128 | * which we aren't supposed to do with a DS_MODE_USER |
2129 | * hold, because it could be inconsistent. | |
34dc7c2f | 2130 | */ |
b8864a23 | 2131 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2132 | !zc->zc_objset_stats.dds_inconsistent && |
2133 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2134 | nvlist_t *nv; | |
2135 | ||
2136 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2137 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2138 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2139 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2140 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2141 | err = put_nvlist(zc, nv); | |
2142 | nvlist_free(nv); | |
2143 | } else { | |
2e528b49 | 2144 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2145 | } |
428870ff | 2146 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2147 | return (err); |
2148 | } | |
2149 | ||
ba6a2402 | 2150 | boolean_t |
9babb374 BB |
2151 | dataset_name_hidden(const char *name) |
2152 | { | |
2153 | /* | |
2154 | * Skip over datasets that are not visible in this zone, | |
2155 | * internal datasets (which have a $ in their name), and | |
2156 | * temporary datasets (which have a % in their name). | |
2157 | */ | |
2158 | if (strchr(name, '$') != NULL) | |
2159 | return (B_TRUE); | |
2160 | if (strchr(name, '%') != NULL) | |
2161 | return (B_TRUE); | |
2162 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2163 | return (B_TRUE); | |
2164 | return (B_FALSE); | |
2165 | } | |
2166 | ||
34dc7c2f BB |
2167 | /* |
2168 | * inputs: | |
2169 | * zc_name name of filesystem | |
2170 | * zc_cookie zap cursor | |
2171 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2172 | * | |
2173 | * outputs: | |
2174 | * zc_name name of next filesystem | |
9babb374 | 2175 | * zc_cookie zap cursor |
34dc7c2f BB |
2176 | * zc_objset_stats stats |
2177 | * zc_nvlist_dst property nvlist | |
2178 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2179 | */ |
2180 | static int | |
2181 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2182 | { | |
2183 | objset_t *os; | |
2184 | int error; | |
2185 | char *p; | |
428870ff | 2186 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2187 | |
428870ff | 2188 | top: |
c65aa5b2 | 2189 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2190 | if (error == ENOENT) |
2e528b49 | 2191 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2192 | return (error); |
2193 | } | |
2194 | ||
2195 | p = strrchr(zc->zc_name, '/'); | |
2196 | if (p == NULL || p[1] != '\0') | |
2197 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2198 | p = zc->zc_name + strlen(zc->zc_name); | |
2199 | ||
2200 | do { | |
2201 | error = dmu_dir_list_next(os, | |
2202 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2203 | NULL, &zc->zc_cookie); | |
2204 | if (error == ENOENT) | |
2e528b49 | 2205 | error = SET_ERROR(ESRCH); |
330d06f9 | 2206 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2207 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2208 | |
428870ff BB |
2209 | /* |
2210 | * If it's an internal dataset (ie. with a '$' in its name), | |
2211 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2212 | */ | |
2213 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2214 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2215 | if (error == ENOENT) { |
2216 | /* We lost a race with destroy, get the next one. */ | |
2217 | zc->zc_name[orig_len] = '\0'; | |
2218 | goto top; | |
2219 | } | |
2220 | } | |
34dc7c2f BB |
2221 | return (error); |
2222 | } | |
2223 | ||
2224 | /* | |
2225 | * inputs: | |
2226 | * zc_name name of filesystem | |
2227 | * zc_cookie zap cursor | |
2228 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2229 | * | |
2230 | * outputs: | |
2231 | * zc_name name of next snapshot | |
2232 | * zc_objset_stats stats | |
2233 | * zc_nvlist_dst property nvlist | |
2234 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2235 | */ |
2236 | static int | |
2237 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2238 | { | |
2239 | objset_t *os; | |
2240 | int error; | |
2241 | ||
428870ff | 2242 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2243 | if (error != 0) { |
b128c09f | 2244 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2245 | } |
34dc7c2f BB |
2246 | |
2247 | /* | |
2248 | * A dataset name of maximum length cannot have any snapshots, | |
2249 | * so exit immediately. | |
2250 | */ | |
2251 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2252 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2253 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2254 | } |
2255 | ||
2256 | error = dmu_snapshot_list_next(os, | |
2257 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2258 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2259 | NULL); | |
2260 | ||
0cee2406 | 2261 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2262 | dsl_dataset_t *ds; |
2263 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2264 | ||
572e2857 | 2265 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2266 | if (error == 0) { |
572e2857 BB |
2267 | objset_t *ossnap; |
2268 | ||
2269 | error = dmu_objset_from_ds(ds, &ossnap); | |
2270 | if (error == 0) | |
2271 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2272 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2273 | } |
2274 | } else if (error == ENOENT) { | |
2e528b49 | 2275 | error = SET_ERROR(ESRCH); |
428870ff | 2276 | } |
34dc7c2f | 2277 | |
572e2857 | 2278 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2279 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2280 | if (error != 0) |
34dc7c2f | 2281 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2282 | return (error); |
2283 | } | |
2284 | ||
428870ff BB |
2285 | static int |
2286 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2287 | { |
428870ff BB |
2288 | const char *propname = nvpair_name(pair); |
2289 | uint64_t *valary; | |
2290 | unsigned int vallen; | |
2291 | const char *domain; | |
2292 | char *dash; | |
2293 | zfs_userquota_prop_t type; | |
2294 | uint64_t rid; | |
2295 | uint64_t quota; | |
3558fd73 | 2296 | zfs_sb_t *zsb; |
428870ff BB |
2297 | int err; |
2298 | ||
2299 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2300 | nvlist_t *attrs; | |
2301 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2302 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2303 | &pair) != 0) | |
2e528b49 | 2304 | return (SET_ERROR(EINVAL)); |
428870ff | 2305 | } |
34dc7c2f BB |
2306 | |
2307 | /* | |
428870ff BB |
2308 | * A correctly constructed propname is encoded as |
2309 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2310 | */ |
428870ff BB |
2311 | if ((dash = strchr(propname, '-')) == NULL || |
2312 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2313 | vallen != 3) | |
2e528b49 | 2314 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2315 | |
428870ff BB |
2316 | domain = dash + 1; |
2317 | type = valary[0]; | |
2318 | rid = valary[1]; | |
2319 | quota = valary[2]; | |
34dc7c2f | 2320 | |
3558fd73 | 2321 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2322 | if (err == 0) { |
3558fd73 BB |
2323 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2324 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2325 | } |
9babb374 | 2326 | |
428870ff BB |
2327 | return (err); |
2328 | } | |
34dc7c2f | 2329 | |
428870ff BB |
2330 | /* |
2331 | * If the named property is one that has a special function to set its value, | |
2332 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2333 | * not one of the special properties handled by this function, return -1. | |
2334 | * | |
2335 | * XXX: It would be better for callers of the property interface if we handled | |
2336 | * these special cases in dsl_prop.c (in the dsl layer). | |
2337 | */ | |
2338 | static int | |
2339 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2340 | nvpair_t *pair) | |
2341 | { | |
2342 | const char *propname = nvpair_name(pair); | |
2343 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2344 | uint64_t intval; | |
2345 | int err; | |
9babb374 | 2346 | |
428870ff BB |
2347 | if (prop == ZPROP_INVAL) { |
2348 | if (zfs_prop_userquota(propname)) | |
2349 | return (zfs_prop_set_userquota(dsname, pair)); | |
2350 | return (-1); | |
2351 | } | |
34dc7c2f | 2352 | |
428870ff BB |
2353 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2354 | nvlist_t *attrs; | |
2355 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2356 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2357 | &pair) == 0); | |
2358 | } | |
b128c09f | 2359 | |
428870ff BB |
2360 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2361 | return (-1); | |
34dc7c2f | 2362 | |
428870ff | 2363 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2364 | |
428870ff BB |
2365 | switch (prop) { |
2366 | case ZFS_PROP_QUOTA: | |
2367 | err = dsl_dir_set_quota(dsname, source, intval); | |
2368 | break; | |
2369 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2370 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff BB |
2371 | break; |
2372 | case ZFS_PROP_RESERVATION: | |
2373 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2374 | break; | |
2375 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2376 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2377 | break; |
2378 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2379 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2380 | break; |
0b4d1b58 ED |
2381 | case ZFS_PROP_SNAPDEV: |
2382 | err = zvol_set_snapdev(dsname, intval); | |
2383 | break; | |
428870ff BB |
2384 | case ZFS_PROP_VERSION: |
2385 | { | |
3558fd73 | 2386 | zfs_sb_t *zsb; |
428870ff | 2387 | |
3558fd73 | 2388 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2389 | break; |
b128c09f | 2390 | |
3558fd73 BB |
2391 | err = zfs_set_version(zsb, intval); |
2392 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2393 | |
428870ff BB |
2394 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2395 | zfs_cmd_t *zc; | |
34dc7c2f | 2396 | |
fa6e5ced BB |
2397 | zc = kmem_zalloc(sizeof (zfs_cmd_t), |
2398 | KM_SLEEP | KM_NODEBUG); | |
428870ff BB |
2399 | (void) strcpy(zc->zc_name, dsname); |
2400 | (void) zfs_ioc_userspace_upgrade(zc); | |
2401 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2402 | } |
428870ff BB |
2403 | break; |
2404 | } | |
9759c60f ED |
2405 | case ZFS_PROP_COMPRESSION: |
2406 | { | |
2407 | if (intval == ZIO_COMPRESS_LZ4) { | |
9759c60f | 2408 | spa_t *spa; |
9759c60f ED |
2409 | |
2410 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
2411 | return (err); | |
2412 | ||
9759c60f ED |
2413 | /* |
2414 | * Setting the LZ4 compression algorithm activates | |
2415 | * the feature. | |
2416 | */ | |
fa86b5db MA |
2417 | if (!spa_feature_is_active(spa, |
2418 | SPA_FEATURE_LZ4_COMPRESS)) { | |
13fe0198 | 2419 | if ((err = zfs_prop_activate_feature(spa, |
fa86b5db | 2420 | SPA_FEATURE_LZ4_COMPRESS)) != 0) { |
9759c60f ED |
2421 | spa_close(spa, FTAG); |
2422 | return (err); | |
2423 | } | |
2424 | } | |
2425 | ||
2426 | spa_close(spa, FTAG); | |
2427 | } | |
2428 | /* | |
2429 | * We still want the default set action to be performed in the | |
2430 | * caller, we only performed zfeature settings here. | |
2431 | */ | |
2432 | err = -1; | |
2433 | break; | |
2434 | } | |
34dc7c2f | 2435 | |
428870ff BB |
2436 | default: |
2437 | err = -1; | |
2438 | } | |
34dc7c2f | 2439 | |
428870ff BB |
2440 | return (err); |
2441 | } | |
34dc7c2f | 2442 | |
428870ff BB |
2443 | /* |
2444 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2445 | * it continues to set as many as it can and returns the last error |
2446 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2447 | * with the list of names of all the properties that failed along with the | |
2448 | * corresponding error numbers. | |
428870ff | 2449 | * |
6f1ffb06 MA |
2450 | * If every property is set successfully, zero is returned and errlist is not |
2451 | * modified. | |
428870ff BB |
2452 | */ |
2453 | int | |
2454 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2455 | nvlist_t *errlist) |
428870ff BB |
2456 | { |
2457 | nvpair_t *pair; | |
2458 | nvpair_t *propval; | |
2459 | int rv = 0; | |
2460 | uint64_t intval; | |
2461 | char *strval; | |
34dc7c2f | 2462 | |
6f1ffb06 MA |
2463 | nvlist_t *genericnvl = fnvlist_alloc(); |
2464 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2465 | retry: |
2466 | pair = NULL; | |
2467 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2468 | const char *propname = nvpair_name(pair); | |
2469 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2470 | int err = 0; | |
2471 | ||
2472 | /* decode the property value */ | |
2473 | propval = pair; | |
2474 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2475 | nvlist_t *attrs; | |
6f1ffb06 | 2476 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2477 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2478 | &propval) != 0) | |
2e528b49 | 2479 | err = SET_ERROR(EINVAL); |
9babb374 | 2480 | } |
34dc7c2f | 2481 | |
428870ff BB |
2482 | /* Validate value type */ |
2483 | if (err == 0 && prop == ZPROP_INVAL) { | |
2484 | if (zfs_prop_user(propname)) { | |
2485 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2486 | err = SET_ERROR(EINVAL); |
428870ff BB |
2487 | } else if (zfs_prop_userquota(propname)) { |
2488 | if (nvpair_type(propval) != | |
2489 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2490 | err = SET_ERROR(EINVAL); |
330d06f9 | 2491 | } else { |
2e528b49 | 2492 | err = SET_ERROR(EINVAL); |
428870ff BB |
2493 | } |
2494 | } else if (err == 0) { | |
2495 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2496 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2497 | err = SET_ERROR(EINVAL); |
428870ff | 2498 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2499 | const char *unused; |
2500 | ||
6f1ffb06 | 2501 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2502 | |
2503 | switch (zfs_prop_get_type(prop)) { | |
2504 | case PROP_TYPE_NUMBER: | |
2505 | break; | |
2506 | case PROP_TYPE_STRING: | |
2e528b49 | 2507 | err = SET_ERROR(EINVAL); |
428870ff | 2508 | break; |
34dc7c2f BB |
2509 | case PROP_TYPE_INDEX: |
2510 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2511 | intval, &unused) != 0) |
2e528b49 | 2512 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2513 | break; |
2514 | default: | |
2515 | cmn_err(CE_PANIC, | |
2516 | "unknown property type"); | |
34dc7c2f | 2517 | } |
34dc7c2f | 2518 | } else { |
2e528b49 | 2519 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2520 | } |
34dc7c2f | 2521 | } |
428870ff BB |
2522 | |
2523 | /* Validate permissions */ | |
2524 | if (err == 0) | |
2525 | err = zfs_check_settable(dsname, pair, CRED()); | |
2526 | ||
2527 | if (err == 0) { | |
2528 | err = zfs_prop_set_special(dsname, source, pair); | |
2529 | if (err == -1) { | |
2530 | /* | |
2531 | * For better performance we build up a list of | |
2532 | * properties to set in a single transaction. | |
2533 | */ | |
2534 | err = nvlist_add_nvpair(genericnvl, pair); | |
2535 | } else if (err != 0 && nvl != retrynvl) { | |
2536 | /* | |
2537 | * This may be a spurious error caused by | |
2538 | * receiving quota and reservation out of order. | |
2539 | * Try again in a second pass. | |
2540 | */ | |
2541 | err = nvlist_add_nvpair(retrynvl, pair); | |
2542 | } | |
2543 | } | |
2544 | ||
6f1ffb06 MA |
2545 | if (err != 0) { |
2546 | if (errlist != NULL) | |
2547 | fnvlist_add_int32(errlist, propname, err); | |
2548 | rv = err; | |
2549 | } | |
34dc7c2f BB |
2550 | } |
2551 | ||
428870ff BB |
2552 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2553 | nvl = retrynvl; | |
2554 | goto retry; | |
2555 | } | |
2556 | ||
2557 | if (!nvlist_empty(genericnvl) && | |
2558 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2559 | /* | |
2560 | * If this fails, we still want to set as many properties as we | |
2561 | * can, so try setting them individually. | |
2562 | */ | |
2563 | pair = NULL; | |
2564 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2565 | const char *propname = nvpair_name(pair); | |
2566 | int err = 0; | |
2567 | ||
2568 | propval = pair; | |
2569 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2570 | nvlist_t *attrs; | |
6f1ffb06 MA |
2571 | attrs = fnvpair_value_nvlist(pair); |
2572 | propval = fnvlist_lookup_nvpair(attrs, | |
2573 | ZPROP_VALUE); | |
428870ff BB |
2574 | } |
2575 | ||
2576 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2577 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2578 | err = dsl_prop_set_string(dsname, propname, |
2579 | source, strval); | |
428870ff | 2580 | } else { |
6f1ffb06 | 2581 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2582 | err = dsl_prop_set_int(dsname, propname, source, |
2583 | intval); | |
428870ff BB |
2584 | } |
2585 | ||
2586 | if (err != 0) { | |
6f1ffb06 MA |
2587 | if (errlist != NULL) { |
2588 | fnvlist_add_int32(errlist, propname, | |
2589 | err); | |
2590 | } | |
2591 | rv = err; | |
428870ff BB |
2592 | } |
2593 | } | |
9babb374 | 2594 | } |
9babb374 | 2595 | nvlist_free(genericnvl); |
428870ff BB |
2596 | nvlist_free(retrynvl); |
2597 | ||
428870ff | 2598 | return (rv); |
9babb374 BB |
2599 | } |
2600 | ||
2601 | /* | |
2602 | * Check that all the properties are valid user properties. | |
2603 | */ | |
2604 | static int | |
6f1ffb06 | 2605 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2606 | { |
428870ff | 2607 | nvpair_t *pair = NULL; |
9babb374 BB |
2608 | int error = 0; |
2609 | ||
428870ff BB |
2610 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2611 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2612 | |
2613 | if (!zfs_prop_user(propname) || | |
428870ff | 2614 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2615 | return (SET_ERROR(EINVAL)); |
9babb374 | 2616 | |
c65aa5b2 BB |
2617 | if ((error = zfs_secpolicy_write_perms(fsname, |
2618 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2619 | return (error); |
2620 | ||
2621 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2622 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2623 | |
da536844 | 2624 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2625 | return (SET_ERROR(E2BIG)); |
9babb374 | 2626 | } |
34dc7c2f BB |
2627 | return (0); |
2628 | } | |
2629 | ||
428870ff BB |
2630 | static void |
2631 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2632 | { | |
2633 | nvpair_t *pair; | |
2634 | ||
2635 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2636 | ||
2637 | pair = NULL; | |
2638 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2639 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2640 | continue; | |
2641 | ||
2642 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2643 | } | |
2644 | } | |
2645 | ||
2646 | static int | |
13fe0198 | 2647 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2648 | nvlist_t *skipped) |
2649 | { | |
2650 | int err = 0; | |
2651 | nvlist_t *cleared_props = NULL; | |
2652 | props_skip(props, skipped, &cleared_props); | |
2653 | if (!nvlist_empty(cleared_props)) { | |
2654 | /* | |
2655 | * Acts on local properties until the dataset has received | |
2656 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2657 | */ | |
2658 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2659 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2660 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2661 | } |
2662 | nvlist_free(cleared_props); | |
2663 | return (err); | |
2664 | } | |
2665 | ||
34dc7c2f BB |
2666 | /* |
2667 | * inputs: | |
2668 | * zc_name name of filesystem | |
9babb374 | 2669 | * zc_value name of property to set |
34dc7c2f | 2670 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2671 | * zc_cookie received properties flag |
34dc7c2f | 2672 | * |
428870ff BB |
2673 | * outputs: |
2674 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2675 | */ |
2676 | static int | |
2677 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2678 | { | |
2679 | nvlist_t *nvl; | |
428870ff BB |
2680 | boolean_t received = zc->zc_cookie; |
2681 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2682 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2683 | nvlist_t *errors; |
34dc7c2f BB |
2684 | int error; |
2685 | ||
2686 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2687 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2688 | return (error); |
2689 | ||
428870ff | 2690 | if (received) { |
b128c09f | 2691 | nvlist_t *origprops; |
b128c09f | 2692 | |
13fe0198 MA |
2693 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2694 | (void) clear_received_props(zc->zc_name, | |
2695 | origprops, nvl); | |
2696 | nvlist_free(origprops); | |
428870ff | 2697 | } |
13fe0198 MA |
2698 | |
2699 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2700 | } |
2701 | ||
6f1ffb06 | 2702 | errors = fnvlist_alloc(); |
13fe0198 MA |
2703 | if (error == 0) |
2704 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2705 | |
b8864a23 | 2706 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2707 | (void) put_nvlist(zc, errors); |
2708 | } | |
2709 | ||
2710 | nvlist_free(errors); | |
34dc7c2f BB |
2711 | nvlist_free(nvl); |
2712 | return (error); | |
2713 | } | |
2714 | ||
2715 | /* | |
2716 | * inputs: | |
2717 | * zc_name name of filesystem | |
2718 | * zc_value name of property to inherit | |
428870ff | 2719 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2720 | * |
2721 | * outputs: none | |
2722 | */ | |
2723 | static int | |
2724 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2725 | { | |
428870ff BB |
2726 | const char *propname = zc->zc_value; |
2727 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2728 | boolean_t received = zc->zc_cookie; | |
2729 | zprop_source_t source = (received | |
2730 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2731 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2732 | ||
2733 | if (received) { | |
2734 | nvlist_t *dummy; | |
2735 | nvpair_t *pair; | |
2736 | zprop_type_t type; | |
2737 | int err; | |
2738 | ||
2739 | /* | |
2740 | * zfs_prop_set_special() expects properties in the form of an | |
2741 | * nvpair with type info. | |
2742 | */ | |
2743 | if (prop == ZPROP_INVAL) { | |
2744 | if (!zfs_prop_user(propname)) | |
2e528b49 | 2745 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2746 | |
2747 | type = PROP_TYPE_STRING; | |
2748 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2749 | prop == ZFS_PROP_VERSION) { | |
2e528b49 | 2750 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2751 | } else { |
2752 | type = zfs_prop_get_type(prop); | |
2753 | } | |
2754 | ||
2755 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2756 | ||
2757 | switch (type) { | |
2758 | case PROP_TYPE_STRING: | |
2759 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2760 | break; | |
2761 | case PROP_TYPE_NUMBER: | |
2762 | case PROP_TYPE_INDEX: | |
2763 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2764 | break; | |
2765 | default: | |
2766 | nvlist_free(dummy); | |
2e528b49 | 2767 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2768 | } |
2769 | ||
2770 | pair = nvlist_next_nvpair(dummy, NULL); | |
2771 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2772 | nvlist_free(dummy); | |
2773 | if (err != -1) | |
2774 | return (err); /* special property already handled */ | |
2775 | } else { | |
2776 | /* | |
2777 | * Only check this in the non-received case. We want to allow | |
2778 | * 'inherit -S' to revert non-inheritable properties like quota | |
2779 | * and reservation to the received or default values even though | |
2780 | * they are not considered inheritable. | |
2781 | */ | |
2782 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2e528b49 | 2783 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2784 | } |
2785 | ||
6f1ffb06 | 2786 | /* property name has been validated by zfs_secpolicy_inherit_prop() */ |
13fe0198 | 2787 | return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); |
34dc7c2f BB |
2788 | } |
2789 | ||
2790 | static int | |
2791 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2792 | { | |
2793 | nvlist_t *props; | |
2794 | spa_t *spa; | |
2795 | int error; | |
428870ff | 2796 | nvpair_t *pair; |
34dc7c2f | 2797 | |
c65aa5b2 BB |
2798 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2799 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2800 | return (error); |
2801 | ||
d164b209 BB |
2802 | /* |
2803 | * If the only property is the configfile, then just do a spa_lookup() | |
2804 | * to handle the faulted case. | |
2805 | */ | |
428870ff BB |
2806 | pair = nvlist_next_nvpair(props, NULL); |
2807 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2808 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2809 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2810 | mutex_enter(&spa_namespace_lock); |
2811 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2812 | spa_configfile_set(spa, props, B_FALSE); | |
2813 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2814 | } | |
2815 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2816 | if (spa != NULL) { |
2817 | nvlist_free(props); | |
d164b209 | 2818 | return (0); |
428870ff | 2819 | } |
d164b209 BB |
2820 | } |
2821 | ||
34dc7c2f BB |
2822 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2823 | nvlist_free(props); | |
2824 | return (error); | |
2825 | } | |
2826 | ||
2827 | error = spa_prop_set(spa, props); | |
2828 | ||
2829 | nvlist_free(props); | |
2830 | spa_close(spa, FTAG); | |
2831 | ||
2832 | return (error); | |
2833 | } | |
2834 | ||
2835 | static int | |
2836 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2837 | { | |
2838 | spa_t *spa; | |
2839 | int error; | |
2840 | nvlist_t *nvp = NULL; | |
2841 | ||
d164b209 BB |
2842 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2843 | /* | |
2844 | * If the pool is faulted, there may be properties we can still | |
2845 | * get (such as altroot and cachefile), so attempt to get them | |
2846 | * anyway. | |
2847 | */ | |
2848 | mutex_enter(&spa_namespace_lock); | |
2849 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2850 | error = spa_prop_get(spa, &nvp); | |
2851 | mutex_exit(&spa_namespace_lock); | |
2852 | } else { | |
2853 | error = spa_prop_get(spa, &nvp); | |
2854 | spa_close(spa, FTAG); | |
2855 | } | |
34dc7c2f | 2856 | |
b8864a23 | 2857 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2858 | error = put_nvlist(zc, nvp); |
2859 | else | |
2e528b49 | 2860 | error = SET_ERROR(EFAULT); |
34dc7c2f | 2861 | |
d164b209 | 2862 | nvlist_free(nvp); |
34dc7c2f BB |
2863 | return (error); |
2864 | } | |
2865 | ||
34dc7c2f BB |
2866 | /* |
2867 | * inputs: | |
2868 | * zc_name name of filesystem | |
2869 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2870 | * zc_perm_action allow/unallow flag | |
2871 | * | |
2872 | * outputs: none | |
2873 | */ | |
2874 | static int | |
2875 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2876 | { | |
2877 | int error; | |
2878 | nvlist_t *fsaclnv = NULL; | |
2879 | ||
2880 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2881 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2882 | return (error); |
2883 | ||
2884 | /* | |
2885 | * Verify nvlist is constructed correctly | |
2886 | */ | |
2887 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2888 | nvlist_free(fsaclnv); | |
2e528b49 | 2889 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
2890 | } |
2891 | ||
2892 | /* | |
2893 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2894 | * that user is allowed to hand out each permission in | |
2895 | * the nvlist(s) | |
2896 | */ | |
2897 | ||
2898 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 2899 | if (error != 0) { |
34dc7c2f BB |
2900 | if (zc->zc_perm_action == B_FALSE) { |
2901 | error = dsl_deleg_can_allow(zc->zc_name, | |
2902 | fsaclnv, CRED()); | |
2903 | } else { | |
2904 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2905 | fsaclnv, CRED()); | |
2906 | } | |
2907 | } | |
2908 | ||
2909 | if (error == 0) | |
2910 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2911 | ||
2912 | nvlist_free(fsaclnv); | |
2913 | return (error); | |
2914 | } | |
2915 | ||
2916 | /* | |
2917 | * inputs: | |
2918 | * zc_name name of filesystem | |
2919 | * | |
2920 | * outputs: | |
2921 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2922 | */ | |
2923 | static int | |
2924 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2925 | { | |
2926 | nvlist_t *nvp; | |
2927 | int error; | |
2928 | ||
2929 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2930 | error = put_nvlist(zc, nvp); | |
2931 | nvlist_free(nvp); | |
2932 | } | |
2933 | ||
2934 | return (error); | |
2935 | } | |
2936 | ||
34dc7c2f BB |
2937 | /* ARGSUSED */ |
2938 | static void | |
2939 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2940 | { | |
2941 | zfs_creat_t *zct = arg; | |
2942 | ||
2943 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2944 | } | |
2945 | ||
2946 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2947 | ||
2948 | /* | |
2949 | * inputs: | |
b128c09f | 2950 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
2951 | * fuids_ok fuids allowed in this version of the spa? |
2952 | * sa_ok SAs allowed in this version of the spa? | |
2953 | * createprops list of properties requested by creator | |
34dc7c2f BB |
2954 | * |
2955 | * outputs: | |
2956 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2957 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2958 | * |
2959 | * Determine the settings for utf8only, normalization and | |
2960 | * casesensitivity. Specific values may have been requested by the | |
2961 | * creator and/or we can inherit values from the parent dataset. If | |
2962 | * the file system is of too early a vintage, a creator can not | |
2963 | * request settings for these properties, even if the requested | |
2964 | * setting is the default value. We don't actually want to create dsl | |
2965 | * properties for these, so remove them from the source nvlist after | |
2966 | * processing. | |
2967 | */ | |
2968 | static int | |
9babb374 | 2969 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2970 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2971 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2972 | { |
34dc7c2f BB |
2973 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2974 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2975 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2976 | int error; |
34dc7c2f BB |
2977 | |
2978 | ASSERT(zplprops != NULL); | |
2979 | ||
34dc7c2f BB |
2980 | /* |
2981 | * Pull out creator prop choices, if any. | |
2982 | */ | |
2983 | if (createprops) { | |
b128c09f BB |
2984 | (void) nvlist_lookup_uint64(createprops, |
2985 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2986 | (void) nvlist_lookup_uint64(createprops, |
2987 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2988 | (void) nvlist_remove_all(createprops, | |
2989 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2990 | (void) nvlist_lookup_uint64(createprops, | |
2991 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2992 | (void) nvlist_remove_all(createprops, | |
2993 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2994 | (void) nvlist_lookup_uint64(createprops, | |
2995 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2996 | (void) nvlist_remove_all(createprops, | |
2997 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2998 | } | |
2999 | ||
3000 | /* | |
b128c09f BB |
3001 | * If the zpl version requested is whacky or the file system |
3002 | * or pool is version is too "young" to support normalization | |
3003 | * and the creator tried to set a value for one of the props, | |
3004 | * error out. | |
34dc7c2f | 3005 | */ |
b128c09f BB |
3006 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3007 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3008 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3009 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3010 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3011 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 3012 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
3013 | |
3014 | /* | |
3015 | * Put the version in the zplprops | |
3016 | */ | |
3017 | VERIFY(nvlist_add_uint64(zplprops, | |
3018 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3019 | ||
b129c659 MM |
3020 | if (norm == ZFS_PROP_UNDEFINED && |
3021 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3022 | return (error); | |
34dc7c2f BB |
3023 | VERIFY(nvlist_add_uint64(zplprops, |
3024 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3025 | ||
3026 | /* | |
3027 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3028 | */ | |
3029 | if (norm) | |
3030 | u8 = 1; | |
b129c659 MM |
3031 | if (u8 == ZFS_PROP_UNDEFINED && |
3032 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3033 | return (error); | |
34dc7c2f BB |
3034 | VERIFY(nvlist_add_uint64(zplprops, |
3035 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3036 | ||
b129c659 MM |
3037 | if (sense == ZFS_PROP_UNDEFINED && |
3038 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3039 | return (error); | |
34dc7c2f BB |
3040 | VERIFY(nvlist_add_uint64(zplprops, |
3041 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3042 | ||
3043 | if (is_ci) | |
3044 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3045 | ||
34dc7c2f BB |
3046 | return (0); |
3047 | } | |
3048 | ||
b128c09f BB |
3049 | static int |
3050 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3051 | nvlist_t *zplprops, boolean_t *is_ci) | |
3052 | { | |
428870ff | 3053 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3054 | uint64_t zplver = ZPL_VERSION; |
3055 | objset_t *os = NULL; | |
3056 | char parentname[MAXNAMELEN]; | |
3057 | char *cp; | |
428870ff BB |
3058 | spa_t *spa; |
3059 | uint64_t spa_vers; | |
b128c09f BB |
3060 | int error; |
3061 | ||
3062 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3063 | cp = strrchr(parentname, '/'); | |
3064 | ASSERT(cp != NULL); | |
3065 | cp[0] = '\0'; | |
3066 | ||
428870ff BB |
3067 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3068 | return (error); | |
3069 | ||
3070 | spa_vers = spa_version(spa); | |
3071 | spa_close(spa, FTAG); | |
3072 | ||
3073 | zplver = zfs_zpl_version_map(spa_vers); | |
3074 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3075 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3076 | |
3077 | /* | |
3078 | * Open parent object set so we can inherit zplprop values. | |
3079 | */ | |
428870ff | 3080 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3081 | return (error); |
3082 | ||
428870ff | 3083 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3084 | zplprops, is_ci); |
428870ff | 3085 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3086 | return (error); |
3087 | } | |
3088 | ||
3089 | static int | |
3090 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3091 | nvlist_t *zplprops, boolean_t *is_ci) | |
3092 | { | |
428870ff BB |
3093 | boolean_t fuids_ok; |
3094 | boolean_t sa_ok; | |
b128c09f BB |
3095 | uint64_t zplver = ZPL_VERSION; |
3096 | int error; | |
3097 | ||
428870ff BB |
3098 | zplver = zfs_zpl_version_map(spa_vers); |
3099 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3100 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3101 | |
428870ff BB |
3102 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3103 | createprops, zplprops, is_ci); | |
b128c09f BB |
3104 | return (error); |
3105 | } | |
3106 | ||
34dc7c2f | 3107 | /* |
6f1ffb06 MA |
3108 | * innvl: { |
3109 | * "type" -> dmu_objset_type_t (int32) | |
3110 | * (optional) "props" -> { prop -> value } | |
3111 | * } | |
34dc7c2f | 3112 | * |
6f1ffb06 | 3113 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3114 | */ |
3115 | static int | |
6f1ffb06 | 3116 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3117 | { |
34dc7c2f | 3118 | int error = 0; |
6f1ffb06 | 3119 | zfs_creat_t zct = { 0 }; |
34dc7c2f BB |
3120 | nvlist_t *nvprops = NULL; |
3121 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
6f1ffb06 MA |
3122 | int32_t type32; |
3123 | dmu_objset_type_t type; | |
3124 | boolean_t is_insensitive = B_FALSE; | |
34dc7c2f | 3125 | |
6f1ffb06 | 3126 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
2e528b49 | 3127 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3128 | type = type32; |
3129 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
34dc7c2f | 3130 | |
6f1ffb06 | 3131 | switch (type) { |
34dc7c2f BB |
3132 | case DMU_OST_ZFS: |
3133 | cbfunc = zfs_create_cb; | |
3134 | break; | |
3135 | ||
3136 | case DMU_OST_ZVOL: | |
3137 | cbfunc = zvol_create_cb; | |
3138 | break; | |
3139 | ||
3140 | default: | |
3141 | cbfunc = NULL; | |
3142 | break; | |
3143 | } | |
6f1ffb06 MA |
3144 | if (strchr(fsname, '@') || |
3145 | strchr(fsname, '%')) | |
2e528b49 | 3146 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3147 | |
34dc7c2f BB |
3148 | zct.zct_props = nvprops; |
3149 | ||
6f1ffb06 | 3150 | if (cbfunc == NULL) |
2e528b49 | 3151 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3152 | |
6f1ffb06 MA |
3153 | if (type == DMU_OST_ZVOL) { |
3154 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3155 | |
6f1ffb06 | 3156 | if (nvprops == NULL) |
2e528b49 | 3157 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3158 | if (nvlist_lookup_uint64(nvprops, |
3159 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3160 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3161 | |
6f1ffb06 MA |
3162 | if ((error = nvlist_lookup_uint64(nvprops, |
3163 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3164 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3165 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3166 | |
6f1ffb06 MA |
3167 | if (error != 0) |
3168 | volblocksize = zfs_prop_default_numeric( | |
3169 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3170 | |
6f1ffb06 MA |
3171 | if ((error = zvol_check_volblocksize( |
3172 | volblocksize)) != 0 || | |
3173 | (error = zvol_check_volsize(volsize, | |
3174 | volblocksize)) != 0) | |
3175 | return (error); | |
3176 | } else if (type == DMU_OST_ZFS) { | |
3177 | int error; | |
34dc7c2f | 3178 | |
6f1ffb06 MA |
3179 | /* |
3180 | * We have to have normalization and | |
3181 | * case-folding flags correct when we do the | |
3182 | * file system creation, so go figure them out | |
3183 | * now. | |
3184 | */ | |
3185 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3186 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3187 | error = zfs_fill_zplprops(fsname, nvprops, | |
3188 | zct.zct_zplprops, &is_insensitive); | |
3189 | if (error != 0) { | |
3190 | nvlist_free(zct.zct_zplprops); | |
3191 | return (error); | |
34dc7c2f | 3192 | } |
34dc7c2f BB |
3193 | } |
3194 | ||
6f1ffb06 MA |
3195 | error = dmu_objset_create(fsname, type, |
3196 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); | |
3197 | nvlist_free(zct.zct_zplprops); | |
3198 | ||
34dc7c2f BB |
3199 | /* |
3200 | * It would be nice to do this atomically. | |
3201 | */ | |
3202 | if (error == 0) { | |
6f1ffb06 MA |
3203 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3204 | nvprops, outnvl); | |
428870ff | 3205 | if (error != 0) |
13fe0198 | 3206 | (void) dsl_destroy_head(fsname); |
34dc7c2f | 3207 | } |
ba6a2402 BB |
3208 | |
3209 | #ifdef _KERNEL | |
3210 | if (error == 0 && type == DMU_OST_ZVOL) | |
3211 | zvol_create_minors(fsname); | |
3212 | #endif | |
3213 | ||
34dc7c2f BB |
3214 | return (error); |
3215 | } | |
3216 | ||
3217 | /* | |
6f1ffb06 MA |
3218 | * innvl: { |
3219 | * "origin" -> name of origin snapshot | |
3220 | * (optional) "props" -> { prop -> value } | |
3221 | * } | |
34dc7c2f | 3222 | * |
428870ff | 3223 | * outputs: |
6f1ffb06 | 3224 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3225 | */ |
3226 | static int | |
6f1ffb06 | 3227 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3228 | { |
6f1ffb06 | 3229 | int error = 0; |
b128c09f | 3230 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3231 | char *origin_name; |
b128c09f | 3232 | |
6f1ffb06 | 3233 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
2e528b49 | 3234 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3235 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3236 | |
6f1ffb06 MA |
3237 | if (strchr(fsname, '@') || |
3238 | strchr(fsname, '%')) | |
2e528b49 | 3239 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3240 | |
3241 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3242 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
3243 | error = dmu_objset_clone(fsname, origin_name); |
3244 | if (error != 0) | |
6f1ffb06 | 3245 | return (error); |
b128c09f | 3246 | |
6f1ffb06 MA |
3247 | /* |
3248 | * It would be nice to do this atomically. | |
3249 | */ | |
3250 | if (error == 0) { | |
3251 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3252 | nvprops, outnvl); | |
3253 | if (error != 0) | |
13fe0198 | 3254 | (void) dsl_destroy_head(fsname); |
b128c09f | 3255 | } |
ba6a2402 BB |
3256 | |
3257 | #ifdef _KERNEL | |
3258 | if (error == 0) | |
3259 | zvol_create_minors(fsname); | |
3260 | #endif | |
3261 | ||
6f1ffb06 MA |
3262 | return (error); |
3263 | } | |
9babb374 | 3264 | |
6f1ffb06 MA |
3265 | /* |
3266 | * innvl: { | |
3267 | * "snaps" -> { snapshot1, snapshot2 } | |
3268 | * (optional) "props" -> { prop -> value (string) } | |
3269 | * } | |
3270 | * | |
3271 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3272 | */ |
3273 | static int | |
3274 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3275 | { | |
3276 | nvlist_t *snaps; | |
3277 | nvlist_t *props = NULL; | |
3278 | int error, poollen; | |
3279 | nvpair_t *pair, *pair2; | |
9babb374 | 3280 | |
6f1ffb06 MA |
3281 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3282 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3283 | return (error); | |
3284 | ||
3285 | if (!nvlist_empty(props) && | |
3286 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3287 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3288 | |
3289 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 3290 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3291 | poollen = strlen(poolname); |
3292 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3293 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3294 | const char *name = nvpair_name(pair); | |
3295 | const char *cp = strchr(name, '@'); | |
3296 | ||
3297 | /* | |
3298 | * The snap name must contain an @, and the part after it must | |
3299 | * contain only valid characters. | |
3300 | */ | |
da536844 MA |
3301 | if (cp == NULL || |
3302 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3303 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3304 | |
3305 | /* | |
3306 | * The snap must be in the specified pool. | |
3307 | */ | |
3308 | if (strncmp(name, poolname, poollen) != 0 || | |
3309 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3310 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3311 | |
3312 | /* This must be the only snap of this fs. */ | |
3313 | for (pair2 = nvlist_next_nvpair(snaps, pair); | |
3314 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { | |
3315 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3316 | == 0) { | |
2e528b49 | 3317 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3318 | } |
3319 | } | |
3320 | } | |
3321 | ||
13fe0198 | 3322 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 BB |
3323 | |
3324 | #ifdef _KERNEL | |
3325 | if (error == 0) | |
3326 | zvol_create_minors(poolname); | |
3327 | #endif | |
3328 | ||
6f1ffb06 MA |
3329 | return (error); |
3330 | } | |
3331 | ||
3332 | /* | |
3333 | * innvl: "message" -> string | |
3334 | */ | |
3335 | /* ARGSUSED */ | |
3336 | static int | |
3337 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3338 | { | |
3339 | char *message; | |
3340 | spa_t *spa; | |
3341 | int error; | |
3342 | char *poolname; | |
3343 | ||
3344 | /* | |
3345 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3346 | * which was set at the end of the last successful ioctl that allows | |
3347 | * logging. The secpolicy func already checked that it is set. | |
3348 | * Only one log ioctl is allowed after each successful ioctl, so | |
3349 | * we clear the TSD here. | |
3350 | */ | |
3351 | poolname = tsd_get(zfs_allow_log_key); | |
3352 | (void) tsd_set(zfs_allow_log_key, NULL); | |
3353 | error = spa_open(poolname, &spa, FTAG); | |
3354 | strfree(poolname); | |
3355 | if (error != 0) | |
3356 | return (error); | |
3357 | ||
3358 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3359 | spa_close(spa, FTAG); | |
2e528b49 | 3360 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3361 | } |
3362 | ||
3363 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3364 | spa_close(spa, FTAG); | |
2e528b49 | 3365 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3366 | } |
3367 | ||
3368 | error = spa_history_log(spa, message); | |
3369 | spa_close(spa, FTAG); | |
b128c09f | 3370 | return (error); |
34dc7c2f BB |
3371 | } |
3372 | ||
ebe7e575 | 3373 | /* |
13fe0198 MA |
3374 | * The dp_config_rwlock must not be held when calling this, because the |
3375 | * unmount may need to write out data. | |
3376 | * | |
3377 | * This function is best-effort. Callers must deal gracefully if it | |
3378 | * remains mounted (or is remounted after this call). | |
d09f25dc WA |
3379 | * |
3380 | * XXX: This function should detect a failure to unmount a snapdir of a dataset | |
3381 | * and return the appropriate error code when it is mounted. Its Illumos and | |
3382 | * FreeBSD counterparts do this. We do not do this on Linux because there is no | |
3383 | * clear way to access the mount information that FreeBSD and Illumos use to | |
3384 | * distinguish between things with mounted snapshot directories, and things | |
3385 | * without mounted snapshot directories, which include zvols. Returning a | |
3386 | * failure for the latter causes `zfs destroy` to fail on zvol snapshots. | |
ebe7e575 | 3387 | */ |
d09f25dc | 3388 | int |
13fe0198 | 3389 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3390 | { |
ebe7e575 BB |
3391 | zfs_sb_t *zsb = NULL; |
3392 | char *dsname; | |
ebe7e575 BB |
3393 | char *fullname; |
3394 | char *ptr; | |
34dc7c2f | 3395 | |
13fe0198 | 3396 | if ((ptr = strchr(snapname, '@')) == NULL) |
d09f25dc | 3397 | return (0); |
34dc7c2f | 3398 | |
20f04f08 RY |
3399 | dsname = kmem_alloc(ptr - snapname + 1, KM_SLEEP); |
3400 | strlcpy(dsname, snapname, ptr - snapname + 1); | |
3401 | fullname = strdup(snapname); | |
3402 | ||
13fe0198 MA |
3403 | if (zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE) == 0) { |
3404 | ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb->z_os))); | |
3405 | (void) zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE); | |
ebe7e575 | 3406 | zfs_sb_rele(zsb, FTAG); |
34dc7c2f | 3407 | } |
ebe7e575 | 3408 | |
20f04f08 | 3409 | kmem_free(dsname, ptr - snapname + 1); |
ebe7e575 BB |
3410 | strfree(fullname); |
3411 | ||
d09f25dc | 3412 | return (0); |
13fe0198 MA |
3413 | } |
3414 | ||
3415 | /* ARGSUSED */ | |
3416 | static int | |
3417 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3418 | { | |
d09f25dc | 3419 | return (zfs_unmount_snap(snapname)); |
13fe0198 MA |
3420 | } |
3421 | ||
3422 | /* | |
3423 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3424 | * in which case it must be unmounted. This routine will do that unmount | |
3425 | * if necessary. | |
3426 | */ | |
3427 | void | |
3428 | zfs_destroy_unmount_origin(const char *fsname) | |
3429 | { | |
3430 | int error; | |
3431 | objset_t *os; | |
3432 | dsl_dataset_t *ds; | |
3433 | ||
3434 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3435 | if (error != 0) | |
3436 | return; | |
3437 | ds = dmu_objset_ds(os); | |
3438 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
3439 | char originname[MAXNAMELEN]; | |
3440 | dsl_dataset_name(ds->ds_prev, originname); | |
3441 | dmu_objset_rele(os, FTAG); | |
d09f25dc | 3442 | (void) zfs_unmount_snap(originname); |
13fe0198 MA |
3443 | } else { |
3444 | dmu_objset_rele(os, FTAG); | |
3445 | } | |
34dc7c2f BB |
3446 | } |
3447 | ||
3448 | /* | |
6f1ffb06 MA |
3449 | * innvl: { |
3450 | * "snaps" -> { snapshot1, snapshot2 } | |
3451 | * (optional boolean) "defer" | |
3452 | * } | |
34dc7c2f | 3453 | * |
6f1ffb06 | 3454 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3455 | */ |
da536844 | 3456 | /* ARGSUSED */ |
34dc7c2f | 3457 | static int |
6f1ffb06 | 3458 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3459 | { |
6f1ffb06 | 3460 | nvlist_t *snaps; |
330d06f9 | 3461 | nvpair_t *pair; |
6f1ffb06 | 3462 | boolean_t defer; |
34dc7c2f | 3463 | |
6f1ffb06 | 3464 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 3465 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3466 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3467 | |
6f1ffb06 MA |
3468 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3469 | pair = nvlist_next_nvpair(snaps, pair)) { | |
da536844 MA |
3470 | (void) zfs_unmount_snap(nvpair_name(pair)); |
3471 | (void) zvol_remove_minor(nvpair_name(pair)); | |
3472 | } | |
3473 | ||
3474 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3475 | } | |
3476 | ||
3477 | /* | |
3478 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3479 | * All bookmarks must be in the same pool. | |
3480 | * | |
3481 | * innvl: { | |
3482 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3483 | * } | |
3484 | * | |
3485 | * outnvl: bookmark -> error code (int32) | |
3486 | * | |
3487 | */ | |
3488 | /* ARGSUSED */ | |
3489 | static int | |
3490 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3491 | { | |
3492 | nvpair_t *pair, *pair2; | |
3493 | ||
3494 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3495 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
3496 | char *snap_name; | |
3497 | ||
3498 | /* | |
3499 | * Verify the snapshot argument. | |
3500 | */ | |
3501 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3502 | return (SET_ERROR(EINVAL)); | |
3503 | ||
3504 | ||
3505 | /* Verify that the keys (bookmarks) are unique */ | |
3506 | for (pair2 = nvlist_next_nvpair(innvl, pair); | |
3507 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { | |
3508 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3509 | return (SET_ERROR(EINVAL)); | |
3510 | } | |
3511 | } | |
3512 | ||
3513 | return (dsl_bookmark_create(innvl, outnvl)); | |
3514 | } | |
3515 | ||
3516 | /* | |
3517 | * innvl: { | |
3518 | * property 1, property 2, ... | |
3519 | * } | |
3520 | * | |
3521 | * outnvl: { | |
3522 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3523 | * bookmark name 2 -> { property 1, property 2, ... } | |
3524 | * } | |
3525 | * | |
3526 | */ | |
3527 | static int | |
3528 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3529 | { | |
3530 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3531 | } | |
3532 | ||
3533 | /* | |
3534 | * innvl: { | |
3535 | * bookmark name 1, bookmark name 2 | |
3536 | * } | |
3537 | * | |
3538 | * outnvl: bookmark -> error code (int32) | |
3539 | * | |
3540 | */ | |
3541 | static int | |
3542 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3543 | nvlist_t *outnvl) | |
3544 | { | |
3545 | int error, poollen; | |
3546 | nvpair_t *pair; | |
3547 | ||
3548 | poollen = strlen(poolname); | |
3549 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3550 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
330d06f9 | 3551 | const char *name = nvpair_name(pair); |
da536844 | 3552 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3553 | |
330d06f9 | 3554 | /* |
da536844 MA |
3555 | * The bookmark name must contain an #, and the part after it |
3556 | * must contain only valid characters. | |
3557 | */ | |
3558 | if (cp == NULL || | |
3559 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3560 | return (SET_ERROR(EINVAL)); | |
3561 | ||
3562 | /* | |
3563 | * The bookmark must be in the specified pool. | |
330d06f9 | 3564 | */ |
6f1ffb06 | 3565 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3566 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3567 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3568 | } |
3569 | ||
da536844 MA |
3570 | error = dsl_bookmark_destroy(innvl, outnvl); |
3571 | return (error); | |
34dc7c2f BB |
3572 | } |
3573 | ||
3574 | /* | |
3575 | * inputs: | |
3576 | * zc_name name of dataset to destroy | |
3577 | * zc_objset_type type of objset | |
45d1cae3 | 3578 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3579 | * |
3580 | * outputs: none | |
3581 | */ | |
3582 | static int | |
3583 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3584 | { | |
428870ff | 3585 | int err; |
d09f25dc WA |
3586 | |
3587 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
3588 | err = zfs_unmount_snap(zc->zc_name); | |
3589 | if (err != 0) | |
3590 | return (err); | |
3591 | } | |
34dc7c2f | 3592 | |
13fe0198 MA |
3593 | if (strchr(zc->zc_name, '@')) |
3594 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); | |
3595 | else | |
3596 | err = dsl_destroy_head(zc->zc_name); | |
428870ff BB |
3597 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) |
3598 | (void) zvol_remove_minor(zc->zc_name); | |
3599 | return (err); | |
34dc7c2f BB |
3600 | } |
3601 | ||
3602 | /* | |
46ba1e59 | 3603 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3604 | * |
46ba1e59 MA |
3605 | * innvl is not used. |
3606 | * | |
3607 | * outnvl: "target" -> name of most recent snapshot | |
3608 | * } | |
34dc7c2f | 3609 | */ |
46ba1e59 | 3610 | /* ARGSUSED */ |
34dc7c2f | 3611 | static int |
46ba1e59 | 3612 | zfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) |
34dc7c2f | 3613 | { |
3558fd73 | 3614 | zfs_sb_t *zsb; |
13fe0198 | 3615 | int error; |
34dc7c2f | 3616 | |
46ba1e59 | 3617 | if (get_zfs_sb(fsname, &zsb) == 0) { |
3558fd73 | 3618 | error = zfs_suspend_fs(zsb); |
34dc7c2f BB |
3619 | if (error == 0) { |
3620 | int resume_err; | |
3621 | ||
46ba1e59 MA |
3622 | error = dsl_dataset_rollback(fsname, zsb, outnvl); |
3623 | resume_err = zfs_resume_fs(zsb, fsname); | |
34dc7c2f | 3624 | error = error ? error : resume_err; |
34dc7c2f | 3625 | } |
2cf7f52b | 3626 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3627 | } else { |
46ba1e59 | 3628 | error = dsl_dataset_rollback(fsname, NULL, outnvl); |
34dc7c2f | 3629 | } |
13fe0198 MA |
3630 | return (error); |
3631 | } | |
34dc7c2f | 3632 | |
13fe0198 MA |
3633 | static int |
3634 | recursive_unmount(const char *fsname, void *arg) | |
3635 | { | |
3636 | const char *snapname = arg; | |
3637 | char *fullname; | |
00fcdee1 | 3638 | int error; |
428870ff | 3639 | |
13fe0198 | 3640 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
00fcdee1 | 3641 | error = zfs_unmount_snap(fullname); |
13fe0198 | 3642 | strfree(fullname); |
00fcdee1 AV |
3643 | |
3644 | return (error); | |
34dc7c2f BB |
3645 | } |
3646 | ||
3647 | /* | |
3648 | * inputs: | |
3649 | * zc_name old name of dataset | |
3650 | * zc_value new name of dataset | |
3651 | * zc_cookie recursive flag (only valid for snapshots) | |
3652 | * | |
3653 | * outputs: none | |
3654 | */ | |
3655 | static int | |
3656 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3657 | { | |
3658 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3659 | char *at; |
34dc7c2f BB |
3660 | |
3661 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3662 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3663 | strchr(zc->zc_value, '%')) | |
2e528b49 | 3664 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3665 | |
13fe0198 MA |
3666 | at = strchr(zc->zc_name, '@'); |
3667 | if (at != NULL) { | |
3668 | /* snaps must be in same fs */ | |
9554185d SH |
3669 | int error; |
3670 | ||
13fe0198 | 3671 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3672 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3673 | *at = '\0'; |
3674 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3675 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3676 | recursive_unmount, at + 1, |
3677 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3678 | if (error != 0) { |
3679 | *at = '@'; | |
13fe0198 | 3680 | return (error); |
9554185d | 3681 | } |
13fe0198 | 3682 | } |
9554185d SH |
3683 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3684 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3685 | *at = '@'; | |
3686 | ||
3687 | return (error); | |
13fe0198 | 3688 | } else { |
ba6a2402 | 3689 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 3690 | } |
34dc7c2f BB |
3691 | } |
3692 | ||
428870ff BB |
3693 | static int |
3694 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3695 | { | |
3696 | const char *propname = nvpair_name(pair); | |
3697 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3698 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3699 | uint64_t intval; | |
3700 | int err; | |
3701 | ||
3702 | if (prop == ZPROP_INVAL) { | |
3703 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3704 | if ((err = zfs_secpolicy_write_perms(dsname, |
3705 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3706 | return (err); |
3707 | return (0); | |
3708 | } | |
3709 | ||
3710 | if (!issnap && zfs_prop_userquota(propname)) { | |
3711 | const char *perm = NULL; | |
3712 | const char *uq_prefix = | |
3713 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3714 | const char *gq_prefix = | |
3715 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3716 | ||
3717 | if (strncmp(propname, uq_prefix, | |
3718 | strlen(uq_prefix)) == 0) { | |
3719 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3720 | } else if (strncmp(propname, gq_prefix, | |
3721 | strlen(gq_prefix)) == 0) { | |
3722 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3723 | } else { | |
3724 | /* USERUSED and GROUPUSED are read-only */ | |
2e528b49 | 3725 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3726 | } |
3727 | ||
c65aa5b2 | 3728 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3729 | return (err); |
3730 | return (0); | |
3731 | } | |
3732 | ||
2e528b49 | 3733 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3734 | } |
3735 | ||
3736 | if (issnap) | |
2e528b49 | 3737 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3738 | |
3739 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3740 | /* | |
3741 | * dsl_prop_get_all_impl() returns properties in this | |
3742 | * format. | |
3743 | */ | |
3744 | nvlist_t *attrs; | |
3745 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3746 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3747 | &pair) == 0); | |
3748 | } | |
3749 | ||
3750 | /* | |
3751 | * Check that this value is valid for this pool version | |
3752 | */ | |
3753 | switch (prop) { | |
3754 | case ZFS_PROP_COMPRESSION: | |
3755 | /* | |
3756 | * If the user specified gzip compression, make sure | |
3757 | * the SPA supports it. We ignore any errors here since | |
3758 | * we'll catch them later. | |
3759 | */ | |
3760 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3761 | nvpair_value_uint64(pair, &intval) == 0) { | |
3762 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3763 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3764 | zfs_earlier_version(dsname, | |
3765 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 3766 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3767 | } |
3768 | ||
3769 | if (intval == ZIO_COMPRESS_ZLE && | |
3770 | zfs_earlier_version(dsname, | |
3771 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 3772 | return (SET_ERROR(ENOTSUP)); |
428870ff | 3773 | |
9759c60f | 3774 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
3775 | spa_t *spa; |
3776 | ||
3777 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3778 | return (err); | |
3779 | ||
fa86b5db MA |
3780 | if (!spa_feature_is_enabled(spa, |
3781 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 3782 | spa_close(spa, FTAG); |
2e528b49 | 3783 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
3784 | } |
3785 | spa_close(spa, FTAG); | |
3786 | } | |
3787 | ||
428870ff BB |
3788 | /* |
3789 | * If this is a bootable dataset then | |
3790 | * verify that the compression algorithm | |
3791 | * is supported for booting. We must return | |
3792 | * something other than ENOTSUP since it | |
3793 | * implies a downrev pool version. | |
3794 | */ | |
3795 | if (zfs_is_bootfs(dsname) && | |
3796 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 3797 | return (SET_ERROR(ERANGE)); |
428870ff BB |
3798 | } |
3799 | } | |
3800 | break; | |
3801 | ||
3802 | case ZFS_PROP_COPIES: | |
3803 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 3804 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3805 | break; |
3806 | ||
3807 | case ZFS_PROP_DEDUP: | |
3808 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
2e528b49 | 3809 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3810 | break; |
3811 | ||
3812 | case ZFS_PROP_SHARESMB: | |
3813 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 3814 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3815 | break; |
3816 | ||
3817 | case ZFS_PROP_ACLINHERIT: | |
3818 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3819 | nvpair_value_uint64(pair, &intval) == 0) { | |
3820 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3821 | zfs_earlier_version(dsname, | |
3822 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 3823 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3824 | } |
3825 | break; | |
e75c13c3 BB |
3826 | default: |
3827 | break; | |
428870ff BB |
3828 | } |
3829 | ||
3830 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3831 | } | |
3832 | ||
9759c60f ED |
3833 | /* |
3834 | * Checks for a race condition to make sure we don't increment a feature flag | |
3835 | * multiple times. | |
3836 | */ | |
9759c60f | 3837 | static int |
13fe0198 | 3838 | zfs_prop_activate_feature_check(void *arg, dmu_tx_t *tx) |
9759c60f | 3839 | { |
13fe0198 | 3840 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; |
fa86b5db | 3841 | spa_feature_t *featurep = arg; |
9759c60f | 3842 | |
fa86b5db | 3843 | if (!spa_feature_is_active(spa, *featurep)) |
9759c60f ED |
3844 | return (0); |
3845 | else | |
2e528b49 | 3846 | return (SET_ERROR(EBUSY)); |
9759c60f ED |
3847 | } |
3848 | ||
3849 | /* | |
3850 | * The callback invoked on feature activation in the sync task caused by | |
3851 | * zfs_prop_activate_feature. | |
3852 | */ | |
3853 | static void | |
13fe0198 | 3854 | zfs_prop_activate_feature_sync(void *arg, dmu_tx_t *tx) |
9759c60f | 3855 | { |
13fe0198 | 3856 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; |
fa86b5db | 3857 | spa_feature_t *featurep = arg; |
9759c60f | 3858 | |
fa86b5db | 3859 | spa_feature_incr(spa, *featurep, tx); |
9759c60f ED |
3860 | } |
3861 | ||
13fe0198 MA |
3862 | /* |
3863 | * Activates a feature on a pool in response to a property setting. This | |
3864 | * creates a new sync task which modifies the pool to reflect the feature | |
3865 | * as being active. | |
3866 | */ | |
3867 | static int | |
fa86b5db | 3868 | zfs_prop_activate_feature(spa_t *spa, spa_feature_t feature) |
13fe0198 MA |
3869 | { |
3870 | int err; | |
3871 | ||
3872 | /* EBUSY here indicates that the feature is already active */ | |
3873 | err = dsl_sync_task(spa_name(spa), | |
3874 | zfs_prop_activate_feature_check, zfs_prop_activate_feature_sync, | |
fa86b5db | 3875 | &feature, 2); |
13fe0198 MA |
3876 | |
3877 | if (err != 0 && err != EBUSY) | |
3878 | return (err); | |
3879 | else | |
3880 | return (0); | |
3881 | } | |
3882 | ||
428870ff BB |
3883 | /* |
3884 | * Removes properties from the given props list that fail permission checks | |
3885 | * needed to clear them and to restore them in case of a receive error. For each | |
3886 | * property, make sure we have both set and inherit permissions. | |
3887 | * | |
3888 | * Returns the first error encountered if any permission checks fail. If the | |
3889 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3890 | * of all the properties that failed a permission check along with the | |
3891 | * corresponding error numbers. The caller is responsible for freeing the | |
3892 | * returned errlist. | |
3893 | * | |
3894 | * If every property checks out successfully, zero is returned and the list | |
3895 | * pointed at by errlist is NULL. | |
3896 | */ | |
3897 | static int | |
3898 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3899 | { |
3900 | zfs_cmd_t *zc; | |
428870ff BB |
3901 | nvpair_t *pair, *next_pair; |
3902 | nvlist_t *errors; | |
3903 | int err, rv = 0; | |
b128c09f BB |
3904 | |
3905 | if (props == NULL) | |
428870ff BB |
3906 | return (0); |
3907 | ||
3908 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3909 | ||
d247f2a3 | 3910 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
b128c09f | 3911 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3912 | pair = nvlist_next_nvpair(props, NULL); |
3913 | while (pair != NULL) { | |
3914 | next_pair = nvlist_next_nvpair(props, pair); | |
3915 | ||
3916 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3917 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
6f1ffb06 | 3918 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
3919 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
3920 | VERIFY(nvlist_add_int32(errors, | |
3921 | zc->zc_value, err) == 0); | |
3922 | } | |
3923 | pair = next_pair; | |
b128c09f BB |
3924 | } |
3925 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3926 | |
3927 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3928 | nvlist_free(errors); | |
3929 | errors = NULL; | |
3930 | } else { | |
3931 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3932 | } | |
3933 | ||
3934 | if (errlist == NULL) | |
3935 | nvlist_free(errors); | |
3936 | else | |
3937 | *errlist = errors; | |
3938 | ||
3939 | return (rv); | |
3940 | } | |
3941 | ||
3942 | static boolean_t | |
3943 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3944 | { | |
3945 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3946 | /* dsl_prop_get_all_impl() format */ | |
3947 | nvlist_t *attrs; | |
3948 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3949 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3950 | &p1) == 0); | |
3951 | } | |
3952 | ||
3953 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3954 | nvlist_t *attrs; | |
3955 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3956 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3957 | &p2) == 0); | |
3958 | } | |
3959 | ||
3960 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3961 | return (B_FALSE); | |
3962 | ||
3963 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3964 | char *valstr1, *valstr2; | |
3965 | ||
3966 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3967 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3968 | return (strcmp(valstr1, valstr2) == 0); | |
3969 | } else { | |
3970 | uint64_t intval1, intval2; | |
3971 | ||
3972 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3973 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3974 | return (intval1 == intval2); | |
3975 | } | |
b128c09f BB |
3976 | } |
3977 | ||
428870ff BB |
3978 | /* |
3979 | * Remove properties from props if they are not going to change (as determined | |
3980 | * by comparison with origprops). Remove them from origprops as well, since we | |
3981 | * do not need to clear or restore properties that won't change. | |
3982 | */ | |
3983 | static void | |
3984 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3985 | { | |
3986 | nvpair_t *pair, *next_pair; | |
3987 | ||
3988 | if (origprops == NULL) | |
3989 | return; /* all props need to be received */ | |
3990 | ||
3991 | pair = nvlist_next_nvpair(props, NULL); | |
3992 | while (pair != NULL) { | |
3993 | const char *propname = nvpair_name(pair); | |
3994 | nvpair_t *match; | |
3995 | ||
3996 | next_pair = nvlist_next_nvpair(props, pair); | |
3997 | ||
3998 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3999 | &match) != 0) || !propval_equals(pair, match)) | |
4000 | goto next; /* need to set received value */ | |
4001 | ||
4002 | /* don't clear the existing received value */ | |
4003 | (void) nvlist_remove_nvpair(origprops, match); | |
4004 | /* don't bother receiving the property */ | |
4005 | (void) nvlist_remove_nvpair(props, pair); | |
4006 | next: | |
4007 | pair = next_pair; | |
4008 | } | |
4009 | } | |
4010 | ||
4011 | #ifdef DEBUG | |
4012 | static boolean_t zfs_ioc_recv_inject_err; | |
4013 | #endif | |
4014 | ||
34dc7c2f BB |
4015 | /* |
4016 | * inputs: | |
4017 | * zc_name name of containing filesystem | |
4018 | * zc_nvlist_src{_size} nvlist of properties to apply | |
4019 | * zc_value name of snapshot to create | |
4020 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
4021 | * zc_cookie file descriptor to recv from | |
4022 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
4023 | * zc_guid force flag | |
572e2857 BB |
4024 | * zc_cleanup_fd cleanup-on-exit file descriptor |
4025 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
4026 | * |
4027 | * outputs: | |
4028 | * zc_cookie number of bytes read | |
428870ff BB |
4029 | * zc_nvlist_dst{_size} error for each unapplied received property |
4030 | * zc_obj zprop_errflags_t | |
572e2857 | 4031 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
4032 | */ |
4033 | static int | |
4034 | zfs_ioc_recv(zfs_cmd_t *zc) | |
4035 | { | |
4036 | file_t *fp; | |
34dc7c2f | 4037 | dmu_recv_cookie_t drc; |
34dc7c2f | 4038 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
4039 | int fd; |
4040 | int error = 0; | |
4041 | int props_error = 0; | |
4042 | nvlist_t *errors; | |
34dc7c2f | 4043 | offset_t off; |
428870ff BB |
4044 | nvlist_t *props = NULL; /* sent properties */ |
4045 | nvlist_t *origprops = NULL; /* existing properties */ | |
13fe0198 | 4046 | char *origin = NULL; |
34dc7c2f BB |
4047 | char *tosnap; |
4048 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 4049 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
4050 | |
4051 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
4052 | strchr(zc->zc_value, '@') == NULL || | |
4053 | strchr(zc->zc_value, '%')) | |
2e528b49 | 4054 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
4055 | |
4056 | (void) strcpy(tofs, zc->zc_value); | |
4057 | tosnap = strchr(tofs, '@'); | |
428870ff | 4058 | *tosnap++ = '\0'; |
34dc7c2f | 4059 | |
b8864a23 | 4060 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 4061 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 4062 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
4063 | return (error); |
4064 | ||
4065 | fd = zc->zc_cookie; | |
4066 | fp = getf(fd); | |
4067 | if (fp == NULL) { | |
4068 | nvlist_free(props); | |
2e528b49 | 4069 | return (SET_ERROR(EBADF)); |
34dc7c2f BB |
4070 | } |
4071 | ||
428870ff BB |
4072 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
4073 | ||
13fe0198 MA |
4074 | if (zc->zc_string[0]) |
4075 | origin = zc->zc_string; | |
4076 | ||
4077 | error = dmu_recv_begin(tofs, tosnap, | |
4078 | &zc->zc_begin_record, force, origin, &drc); | |
4079 | if (error != 0) | |
4080 | goto out; | |
4081 | ||
4082 | /* | |
4083 | * Set properties before we receive the stream so that they are applied | |
4084 | * to the new data. Note that we must call dmu_recv_stream() if | |
4085 | * dmu_recv_begin() succeeds. | |
4086 | */ | |
4087 | if (props != NULL && !drc.drc_newfs) { | |
4088 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= | |
4089 | SPA_VERSION_RECVD_PROPS && | |
4090 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4091 | first_recvd_props = B_TRUE; |
428870ff | 4092 | |
b128c09f | 4093 | /* |
428870ff BB |
4094 | * If new received properties are supplied, they are to |
4095 | * completely replace the existing received properties, so stash | |
4096 | * away the existing ones. | |
b128c09f | 4097 | */ |
13fe0198 | 4098 | if (dsl_prop_get_received(tofs, &origprops) == 0) { |
428870ff BB |
4099 | nvlist_t *errlist = NULL; |
4100 | /* | |
4101 | * Don't bother writing a property if its value won't | |
4102 | * change (and avoid the unnecessary security checks). | |
4103 | * | |
4104 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4105 | * special case where we blow away all local properties | |
4106 | * regardless. | |
4107 | */ | |
4108 | if (!first_recvd_props) | |
4109 | props_reduce(props, origprops); | |
13fe0198 | 4110 | if (zfs_check_clearable(tofs, origprops, &errlist) != 0) |
428870ff BB |
4111 | (void) nvlist_merge(errors, errlist, 0); |
4112 | nvlist_free(errlist); | |
b128c09f | 4113 | |
13fe0198 MA |
4114 | if (clear_received_props(tofs, origprops, |
4115 | first_recvd_props ? NULL : props) != 0) | |
428870ff | 4116 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
13fe0198 | 4117 | } else { |
428870ff BB |
4118 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
4119 | } | |
13fe0198 MA |
4120 | } |
4121 | ||
4122 | if (props != NULL) { | |
4123 | props_error = dsl_prop_set_hasrecvd(tofs); | |
428870ff | 4124 | |
13fe0198 MA |
4125 | if (props_error == 0) { |
4126 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
4127 | props, errors); | |
4128 | } | |
428870ff BB |
4129 | } |
4130 | ||
6f1ffb06 MA |
4131 | if (zc->zc_nvlist_dst_size != 0 && |
4132 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4133 | put_nvlist(zc, errors) != 0)) { | |
b128c09f | 4134 | /* |
428870ff BB |
4135 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
4136 | * size or supplied an invalid address. | |
b128c09f | 4137 | */ |
2e528b49 | 4138 | props_error = SET_ERROR(EINVAL); |
34dc7c2f BB |
4139 | } |
4140 | ||
34dc7c2f | 4141 | off = fp->f_offset; |
572e2857 BB |
4142 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
4143 | &zc->zc_action_handle); | |
34dc7c2f | 4144 | |
45d1cae3 | 4145 | if (error == 0) { |
3558fd73 | 4146 | zfs_sb_t *zsb = NULL; |
b128c09f | 4147 | |
3558fd73 | 4148 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
4149 | /* online recv */ |
4150 | int end_err; | |
b128c09f | 4151 | |
3558fd73 | 4152 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
4153 | /* |
4154 | * If the suspend fails, then the recv_end will | |
4155 | * likely also fail, and clean up after itself. | |
4156 | */ | |
831baf06 | 4157 | end_err = dmu_recv_end(&drc, zsb); |
428870ff | 4158 | if (error == 0) |
3558fd73 | 4159 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 4160 | error = error ? error : end_err; |
2cf7f52b | 4161 | deactivate_super(zsb->z_sb); |
b128c09f | 4162 | } else { |
831baf06 | 4163 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4164 | } |
34dc7c2f BB |
4165 | } |
4166 | ||
4167 | zc->zc_cookie = off - fp->f_offset; | |
4168 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4169 | fp->f_offset = off; | |
4170 | ||
428870ff BB |
4171 | #ifdef DEBUG |
4172 | if (zfs_ioc_recv_inject_err) { | |
4173 | zfs_ioc_recv_inject_err = B_FALSE; | |
4174 | error = 1; | |
4175 | } | |
4176 | #endif | |
ba6a2402 BB |
4177 | |
4178 | #ifdef _KERNEL | |
4179 | if (error == 0) | |
4180 | zvol_create_minors(tofs); | |
4181 | #endif | |
4182 | ||
b128c09f BB |
4183 | /* |
4184 | * On error, restore the original props. | |
4185 | */ | |
13fe0198 MA |
4186 | if (error != 0 && props != NULL && !drc.drc_newfs) { |
4187 | if (clear_received_props(tofs, props, NULL) != 0) { | |
4188 | /* | |
4189 | * We failed to clear the received properties. | |
4190 | * Since we may have left a $recvd value on the | |
4191 | * system, we can't clear the $hasrecvd flag. | |
4192 | */ | |
428870ff | 4193 | zc->zc_obj |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4194 | } else if (first_recvd_props) { |
4195 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4196 | } |
4197 | ||
4198 | if (origprops == NULL && !drc.drc_newfs) { | |
4199 | /* We failed to stash the original properties. */ | |
4200 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4201 | } | |
4202 | ||
4203 | /* | |
4204 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4205 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4206 | * explictly if we're restoring local properties cleared in the | |
4207 | * first new-style receive. | |
4208 | */ | |
4209 | if (origprops != NULL && | |
4210 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
4211 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
4212 | origprops, NULL) != 0) { | |
4213 | /* | |
4214 | * We stashed the original properties but failed to | |
4215 | * restore them. | |
4216 | */ | |
4217 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4218 | } | |
b128c09f BB |
4219 | } |
4220 | out: | |
b128c09f BB |
4221 | nvlist_free(props); |
4222 | nvlist_free(origprops); | |
428870ff | 4223 | nvlist_free(errors); |
34dc7c2f | 4224 | releasef(fd); |
428870ff BB |
4225 | |
4226 | if (error == 0) | |
4227 | error = props_error; | |
4228 | ||
34dc7c2f BB |
4229 | return (error); |
4230 | } | |
4231 | ||
4232 | /* | |
4233 | * inputs: | |
4234 | * zc_name name of snapshot to send | |
34dc7c2f | 4235 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4236 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4237 | * zc_sendobj objsetid of snapshot to send | |
4238 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4239 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4240 | * output size in zc_objset_type. | |
34dc7c2f | 4241 | * |
da536844 MA |
4242 | * outputs: |
4243 | * zc_objset_type estimated size, if zc_guid is set | |
34dc7c2f BB |
4244 | */ |
4245 | static int | |
4246 | zfs_ioc_send(zfs_cmd_t *zc) | |
4247 | { | |
34dc7c2f BB |
4248 | int error; |
4249 | offset_t off; | |
330d06f9 | 4250 | boolean_t estimate = (zc->zc_guid != 0); |
34dc7c2f | 4251 | |
13fe0198 MA |
4252 | if (zc->zc_obj != 0) { |
4253 | dsl_pool_t *dp; | |
4254 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4255 | |
13fe0198 MA |
4256 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4257 | if (error != 0) | |
572e2857 | 4258 | return (error); |
13fe0198 MA |
4259 | |
4260 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4261 | if (error != 0) { | |
4262 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4263 | return (error); |
4264 | } | |
13fe0198 MA |
4265 | |
4266 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
4267 | zc->zc_fromobj = tosnap->ds_dir->dd_phys->dd_origin_obj; | |
4268 | dsl_dataset_rele(tosnap, FTAG); | |
4269 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4270 | } |
4271 | ||
13fe0198 MA |
4272 | if (estimate) { |
4273 | dsl_pool_t *dp; | |
4274 | dsl_dataset_t *tosnap; | |
4275 | dsl_dataset_t *fromsnap = NULL; | |
4276 | ||
4277 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4278 | if (error != 0) | |
4279 | return (error); | |
6f1ffb06 | 4280 | |
13fe0198 MA |
4281 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); |
4282 | if (error != 0) { | |
4283 | dsl_pool_rele(dp, FTAG); | |
4284 | return (error); | |
6f1ffb06 MA |
4285 | } |
4286 | ||
13fe0198 MA |
4287 | if (zc->zc_fromobj != 0) { |
4288 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4289 | FTAG, &fromsnap); | |
4290 | if (error != 0) { | |
4291 | dsl_dataset_rele(tosnap, FTAG); | |
4292 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4293 | return (error); |
4294 | } | |
4295 | } | |
34dc7c2f | 4296 | |
6f1ffb06 | 4297 | error = dmu_send_estimate(tosnap, fromsnap, |
330d06f9 | 4298 | &zc->zc_objset_type); |
13fe0198 MA |
4299 | |
4300 | if (fromsnap != NULL) | |
4301 | dsl_dataset_rele(fromsnap, FTAG); | |
4302 | dsl_dataset_rele(tosnap, FTAG); | |
4303 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4304 | } else { |
4305 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4306 | if (fp == NULL) |
2e528b49 | 4307 | return (SET_ERROR(EBADF)); |
34dc7c2f | 4308 | |
330d06f9 | 4309 | off = fp->f_offset; |
13fe0198 MA |
4310 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
4311 | zc->zc_fromobj, zc->zc_cookie, fp->f_vnode, &off); | |
34dc7c2f | 4312 | |
330d06f9 MA |
4313 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4314 | fp->f_offset = off; | |
4315 | releasef(zc->zc_cookie); | |
4316 | } | |
34dc7c2f BB |
4317 | return (error); |
4318 | } | |
4319 | ||
37abac6d BP |
4320 | /* |
4321 | * inputs: | |
4322 | * zc_name name of snapshot on which to report progress | |
4323 | * zc_cookie file descriptor of send stream | |
4324 | * | |
4325 | * outputs: | |
4326 | * zc_cookie number of bytes written in send stream thus far | |
4327 | */ | |
4328 | static int | |
4329 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4330 | { | |
13fe0198 | 4331 | dsl_pool_t *dp; |
37abac6d BP |
4332 | dsl_dataset_t *ds; |
4333 | dmu_sendarg_t *dsp = NULL; | |
4334 | int error; | |
4335 | ||
13fe0198 MA |
4336 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4337 | if (error != 0) | |
37abac6d BP |
4338 | return (error); |
4339 | ||
13fe0198 MA |
4340 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4341 | if (error != 0) { | |
4342 | dsl_pool_rele(dp, FTAG); | |
4343 | return (error); | |
4344 | } | |
4345 | ||
37abac6d BP |
4346 | mutex_enter(&ds->ds_sendstream_lock); |
4347 | ||
4348 | /* | |
4349 | * Iterate over all the send streams currently active on this dataset. | |
4350 | * If there's one which matches the specified file descriptor _and_ the | |
4351 | * stream was started by the current process, return the progress of | |
4352 | * that stream. | |
4353 | */ | |
4354 | ||
4355 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4356 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4357 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4358 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4359 | break; | |
4360 | } | |
4361 | ||
4362 | if (dsp != NULL) | |
4363 | zc->zc_cookie = *(dsp->dsa_off); | |
4364 | else | |
2e528b49 | 4365 | error = SET_ERROR(ENOENT); |
37abac6d BP |
4366 | |
4367 | mutex_exit(&ds->ds_sendstream_lock); | |
4368 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4369 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4370 | return (error); |
4371 | } | |
4372 | ||
34dc7c2f BB |
4373 | static int |
4374 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4375 | { | |
4376 | int id, error; | |
4377 | ||
4378 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4379 | &zc->zc_inject_record); | |
4380 | ||
4381 | if (error == 0) | |
4382 | zc->zc_guid = (uint64_t)id; | |
4383 | ||
4384 | return (error); | |
4385 | } | |
4386 | ||
4387 | static int | |
4388 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4389 | { | |
4390 | return (zio_clear_fault((int)zc->zc_guid)); | |
4391 | } | |
4392 | ||
4393 | static int | |
4394 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4395 | { | |
4396 | int id = (int)zc->zc_guid; | |
4397 | int error; | |
4398 | ||
4399 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4400 | &zc->zc_inject_record); | |
4401 | ||
4402 | zc->zc_guid = id; | |
4403 | ||
4404 | return (error); | |
4405 | } | |
4406 | ||
4407 | static int | |
4408 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4409 | { | |
4410 | spa_t *spa; | |
4411 | int error; | |
4412 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4413 | ||
4414 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4415 | return (error); | |
4416 | ||
4417 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4418 | &count); | |
4419 | if (error == 0) | |
4420 | zc->zc_nvlist_dst_size = count; | |
4421 | else | |
4422 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4423 | ||
4424 | spa_close(spa, FTAG); | |
4425 | ||
4426 | return (error); | |
4427 | } | |
4428 | ||
4429 | static int | |
4430 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4431 | { | |
4432 | spa_t *spa; | |
4433 | vdev_t *vd; | |
34dc7c2f BB |
4434 | int error; |
4435 | ||
34dc7c2f | 4436 | /* |
b128c09f | 4437 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4438 | */ |
b128c09f BB |
4439 | mutex_enter(&spa_namespace_lock); |
4440 | spa = spa_lookup(zc->zc_name); | |
4441 | if (spa == NULL) { | |
4442 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 4443 | return (SET_ERROR(EIO)); |
b128c09f | 4444 | } |
428870ff | 4445 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4446 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4447 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4448 | } |
428870ff | 4449 | spa->spa_last_open_failed = 0; |
b128c09f | 4450 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4451 | |
428870ff BB |
4452 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4453 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4454 | } else { | |
4455 | nvlist_t *policy; | |
4456 | nvlist_t *config = NULL; | |
4457 | ||
b8864a23 | 4458 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 4459 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4460 | |
4461 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4462 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4463 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4464 | policy, &config); | |
4465 | if (config != NULL) { | |
572e2857 BB |
4466 | int err; |
4467 | ||
4468 | if ((err = put_nvlist(zc, config)) != 0) | |
4469 | error = err; | |
428870ff BB |
4470 | nvlist_free(config); |
4471 | } | |
4472 | nvlist_free(policy); | |
4473 | } | |
4474 | } | |
4475 | ||
13fe0198 | 4476 | if (error != 0) |
b128c09f BB |
4477 | return (error); |
4478 | ||
428870ff | 4479 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4480 | |
4481 | if (zc->zc_guid == 0) { | |
4482 | vd = NULL; | |
b128c09f BB |
4483 | } else { |
4484 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4485 | if (vd == NULL) { |
b128c09f | 4486 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 4487 | spa_close(spa, FTAG); |
2e528b49 | 4488 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
4489 | } |
4490 | } | |
4491 | ||
b128c09f BB |
4492 | vdev_clear(spa, vd); |
4493 | ||
4494 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4495 | |
b128c09f BB |
4496 | /* |
4497 | * Resume any suspended I/Os. | |
4498 | */ | |
9babb374 | 4499 | if (zio_resume(spa) != 0) |
2e528b49 | 4500 | error = SET_ERROR(EIO); |
34dc7c2f BB |
4501 | |
4502 | spa_close(spa, FTAG); | |
4503 | ||
9babb374 | 4504 | return (error); |
34dc7c2f BB |
4505 | } |
4506 | ||
1bd201e7 CS |
4507 | static int |
4508 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4509 | { | |
4510 | spa_t *spa; | |
4511 | int error; | |
4512 | ||
4513 | error = spa_open(zc->zc_name, &spa, FTAG); | |
13fe0198 | 4514 | if (error != 0) |
1bd201e7 CS |
4515 | return (error); |
4516 | ||
4517 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
4518 | |
4519 | /* | |
4520 | * If a resilver is already in progress then set the | |
4521 | * spa_scrub_reopen flag to B_TRUE so that we don't restart | |
4522 | * the scan as a side effect of the reopen. Otherwise, let | |
4523 | * vdev_open() decided if a resilver is required. | |
4524 | */ | |
4525 | spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); | |
1bd201e7 | 4526 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
4527 | spa->spa_scrub_reopen = B_FALSE; |
4528 | ||
1bd201e7 CS |
4529 | (void) spa_vdev_state_exit(spa, NULL, 0); |
4530 | spa_close(spa, FTAG); | |
4531 | return (0); | |
4532 | } | |
34dc7c2f BB |
4533 | /* |
4534 | * inputs: | |
4535 | * zc_name name of filesystem | |
4536 | * zc_value name of origin snapshot | |
4537 | * | |
428870ff BB |
4538 | * outputs: |
4539 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4540 | */ |
4541 | static int | |
4542 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4543 | { | |
4544 | char *cp; | |
4545 | ||
4546 | /* | |
4547 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4548 | * it's easier. | |
4549 | */ | |
4550 | cp = strchr(zc->zc_value, '@'); | |
4551 | if (cp) | |
4552 | *cp = '\0'; | |
4553 | (void) dmu_objset_find(zc->zc_value, | |
13fe0198 | 4554 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 4555 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4556 | } |
4557 | ||
9babb374 BB |
4558 | /* |
4559 | * Retrieve a single {user|group}{used|quota}@... property. | |
4560 | * | |
4561 | * inputs: | |
4562 | * zc_name name of filesystem | |
4563 | * zc_objset_type zfs_userquota_prop_t | |
4564 | * zc_value domain name (eg. "S-1-234-567-89") | |
4565 | * zc_guid RID/UID/GID | |
4566 | * | |
4567 | * outputs: | |
4568 | * zc_cookie property value | |
4569 | */ | |
4570 | static int | |
4571 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4572 | { | |
3558fd73 | 4573 | zfs_sb_t *zsb; |
9babb374 BB |
4574 | int error; |
4575 | ||
4576 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 4577 | return (SET_ERROR(EINVAL)); |
9babb374 | 4578 | |
3558fd73 | 4579 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4580 | if (error != 0) |
9babb374 BB |
4581 | return (error); |
4582 | ||
3558fd73 | 4583 | error = zfs_userspace_one(zsb, |
9babb374 | 4584 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4585 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4586 | |
4587 | return (error); | |
4588 | } | |
4589 | ||
4590 | /* | |
4591 | * inputs: | |
4592 | * zc_name name of filesystem | |
4593 | * zc_cookie zap cursor | |
4594 | * zc_objset_type zfs_userquota_prop_t | |
4595 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4596 | * | |
4597 | * outputs: | |
4598 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4599 | * zc_cookie zap cursor | |
4600 | */ | |
4601 | static int | |
4602 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4603 | { | |
3558fd73 | 4604 | zfs_sb_t *zsb; |
428870ff | 4605 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4606 | int error; |
4607 | void *buf; | |
428870ff BB |
4608 | |
4609 | if (bufsize <= 0) | |
2e528b49 | 4610 | return (SET_ERROR(ENOMEM)); |
9babb374 | 4611 | |
3558fd73 | 4612 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4613 | if (error != 0) |
9babb374 BB |
4614 | return (error); |
4615 | ||
2b8cad61 | 4616 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4617 | |
3558fd73 | 4618 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4619 | buf, &zc->zc_nvlist_dst_size); |
4620 | ||
4621 | if (error == 0) { | |
4622 | error = xcopyout(buf, | |
4623 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4624 | zc->zc_nvlist_dst_size); | |
4625 | } | |
2b8cad61 | 4626 | vmem_free(buf, bufsize); |
3558fd73 | 4627 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4628 | |
4629 | return (error); | |
4630 | } | |
4631 | ||
4632 | /* | |
4633 | * inputs: | |
4634 | * zc_name name of filesystem | |
4635 | * | |
4636 | * outputs: | |
4637 | * none | |
4638 | */ | |
4639 | static int | |
4640 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4641 | { | |
4642 | objset_t *os; | |
428870ff | 4643 | int error = 0; |
3558fd73 | 4644 | zfs_sb_t *zsb; |
9babb374 | 4645 | |
3558fd73 BB |
4646 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4647 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4648 | /* |
4649 | * If userused is not enabled, it may be because the | |
4650 | * objset needs to be closed & reopened (to grow the | |
4651 | * objset_phys_t). Suspend/resume the fs will do that. | |
4652 | */ | |
3558fd73 | 4653 | error = zfs_suspend_fs(zsb); |
831baf06 KW |
4654 | if (error == 0) { |
4655 | dmu_objset_refresh_ownership(zsb->z_os, | |
4656 | zsb); | |
3558fd73 | 4657 | error = zfs_resume_fs(zsb, zc->zc_name); |
831baf06 | 4658 | } |
9babb374 BB |
4659 | } |
4660 | if (error == 0) | |
3558fd73 | 4661 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4662 | deactivate_super(zsb->z_sb); |
9babb374 | 4663 | } else { |
428870ff BB |
4664 | /* XXX kind of reading contents without owning */ |
4665 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4666 | if (error != 0) |
9babb374 BB |
4667 | return (error); |
4668 | ||
4669 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4670 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4671 | } |
4672 | ||
4673 | return (error); | |
4674 | } | |
4675 | ||
34dc7c2f BB |
4676 | static int |
4677 | zfs_ioc_share(zfs_cmd_t *zc) | |
4678 | { | |
2e528b49 | 4679 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
4680 | } |
4681 | ||
9babb374 BB |
4682 | ace_t full_access[] = { |
4683 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4684 | }; | |
4685 | ||
572e2857 BB |
4686 | /* |
4687 | * inputs: | |
4688 | * zc_name name of containing filesystem | |
4689 | * zc_obj object # beyond which we want next in-use object # | |
4690 | * | |
4691 | * outputs: | |
4692 | * zc_obj next in-use object # | |
4693 | */ | |
4694 | static int | |
4695 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4696 | { | |
4697 | objset_t *os = NULL; | |
4698 | int error; | |
4699 | ||
4700 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4701 | if (error != 0) |
572e2857 BB |
4702 | return (error); |
4703 | ||
4704 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
4705 | os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); | |
4706 | ||
4707 | dmu_objset_rele(os, FTAG); | |
4708 | return (error); | |
4709 | } | |
4710 | ||
4711 | /* | |
4712 | * inputs: | |
4713 | * zc_name name of filesystem | |
4714 | * zc_value prefix name for snapshot | |
4715 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4716 | * | |
4717 | * outputs: | |
6f1ffb06 | 4718 | * zc_value short name of new snapshot |
572e2857 BB |
4719 | */ |
4720 | static int | |
4721 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4722 | { | |
4723 | char *snap_name; | |
13fe0198 | 4724 | char *hold_name; |
572e2857 | 4725 | int error; |
13fe0198 | 4726 | minor_t minor; |
572e2857 | 4727 | |
13fe0198 MA |
4728 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
4729 | if (error != 0) | |
572e2857 | 4730 | return (error); |
572e2857 | 4731 | |
13fe0198 MA |
4732 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
4733 | (u_longlong_t)ddi_get_lbolt64()); | |
4734 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
4735 | ||
4736 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
4737 | hold_name); | |
4738 | if (error == 0) | |
4739 | (void) strcpy(zc->zc_value, snap_name); | |
572e2857 | 4740 | strfree(snap_name); |
13fe0198 MA |
4741 | strfree(hold_name); |
4742 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4743 | return (error); | |
572e2857 BB |
4744 | } |
4745 | ||
4746 | /* | |
4747 | * inputs: | |
4748 | * zc_name name of "to" snapshot | |
4749 | * zc_value name of "from" snapshot | |
4750 | * zc_cookie file descriptor to write diff data on | |
4751 | * | |
4752 | * outputs: | |
4753 | * dmu_diff_record_t's to the file descriptor | |
4754 | */ | |
4755 | static int | |
4756 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4757 | { | |
572e2857 BB |
4758 | file_t *fp; |
4759 | offset_t off; | |
4760 | int error; | |
4761 | ||
572e2857 | 4762 | fp = getf(zc->zc_cookie); |
13fe0198 | 4763 | if (fp == NULL) |
2e528b49 | 4764 | return (SET_ERROR(EBADF)); |
572e2857 BB |
4765 | |
4766 | off = fp->f_offset; | |
4767 | ||
13fe0198 | 4768 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
4769 | |
4770 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4771 | fp->f_offset = off; | |
4772 | releasef(zc->zc_cookie); | |
4773 | ||
572e2857 BB |
4774 | return (error); |
4775 | } | |
4776 | ||
9babb374 BB |
4777 | /* |
4778 | * Remove all ACL files in shares dir | |
4779 | */ | |
3c9609b3 | 4780 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4781 | static int |
4782 | zfs_smb_acl_purge(znode_t *dzp) | |
4783 | { | |
4784 | zap_cursor_t zc; | |
4785 | zap_attribute_t zap; | |
3558fd73 | 4786 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4787 | int error; |
4788 | ||
3558fd73 | 4789 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4790 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4791 | zap_cursor_advance(&zc)) { | |
4792 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4793 | NULL, 0)) != 0) | |
4794 | break; | |
4795 | } | |
4796 | zap_cursor_fini(&zc); | |
4797 | return (error); | |
4798 | } | |
3c9609b3 | 4799 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4800 | |
4801 | static int | |
4802 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4803 | { | |
3c9609b3 | 4804 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4805 | vnode_t *vp; |
4806 | znode_t *dzp; | |
4807 | vnode_t *resourcevp = NULL; | |
4808 | znode_t *sharedir; | |
3558fd73 | 4809 | zfs_sb_t *zsb; |
9babb374 BB |
4810 | nvlist_t *nvlist; |
4811 | char *src, *target; | |
4812 | vattr_t vattr; | |
4813 | vsecattr_t vsec; | |
4814 | int error = 0; | |
4815 | ||
4816 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4817 | NO_FOLLOW, NULL, &vp)) != 0) | |
4818 | return (error); | |
4819 | ||
4820 | /* Now make sure mntpnt and dataset are ZFS */ | |
4821 | ||
4822 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4823 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4824 | zc->zc_name) != 0)) { | |
4825 | VN_RELE(vp); | |
2e528b49 | 4826 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
4827 | } |
4828 | ||
4829 | dzp = VTOZ(vp); | |
3558fd73 BB |
4830 | zsb = ZTOZSB(dzp); |
4831 | ZFS_ENTER(zsb); | |
9babb374 BB |
4832 | |
4833 | /* | |
4834 | * Create share dir if its missing. | |
4835 | */ | |
3558fd73 BB |
4836 | mutex_enter(&zsb->z_lock); |
4837 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4838 | dmu_tx_t *tx; |
4839 | ||
3558fd73 | 4840 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4841 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4842 | ZFS_SHARES_DIR); | |
4843 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4844 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 4845 | if (error != 0) { |
9babb374 BB |
4846 | dmu_tx_abort(tx); |
4847 | } else { | |
3558fd73 | 4848 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4849 | dmu_tx_commit(tx); |
4850 | } | |
13fe0198 | 4851 | if (error != 0) { |
3558fd73 | 4852 | mutex_exit(&zsb->z_lock); |
9babb374 | 4853 | VN_RELE(vp); |
3558fd73 | 4854 | ZFS_EXIT(zsb); |
9babb374 BB |
4855 | return (error); |
4856 | } | |
4857 | } | |
3558fd73 | 4858 | mutex_exit(&zsb->z_lock); |
9babb374 | 4859 | |
3558fd73 BB |
4860 | ASSERT(zsb->z_shares_dir); |
4861 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4862 | VN_RELE(vp); |
3558fd73 | 4863 | ZFS_EXIT(zsb); |
9babb374 BB |
4864 | return (error); |
4865 | } | |
4866 | ||
4867 | switch (zc->zc_cookie) { | |
4868 | case ZFS_SMB_ACL_ADD: | |
4869 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4870 | vattr.va_mode = S_IFREG|0777; |
4871 | vattr.va_uid = 0; | |
4872 | vattr.va_gid = 0; | |
4873 | ||
4874 | vsec.vsa_mask = VSA_ACE; | |
4875 | vsec.vsa_aclentp = &full_access; | |
4876 | vsec.vsa_aclentsz = sizeof (full_access); | |
4877 | vsec.vsa_aclcnt = 1; | |
4878 | ||
4879 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4880 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4881 | if (resourcevp) | |
4882 | VN_RELE(resourcevp); | |
4883 | break; | |
4884 | ||
4885 | case ZFS_SMB_ACL_REMOVE: | |
4886 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4887 | NULL, 0); | |
4888 | break; | |
4889 | ||
4890 | case ZFS_SMB_ACL_RENAME: | |
4891 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4892 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4893 | VN_RELE(vp); | |
3558fd73 | 4894 | ZFS_EXIT(zsb); |
9babb374 BB |
4895 | return (error); |
4896 | } | |
4897 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4898 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4899 | &target)) { | |
4900 | VN_RELE(vp); | |
4901 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4902 | ZFS_EXIT(zsb); |
428870ff | 4903 | nvlist_free(nvlist); |
9babb374 BB |
4904 | return (error); |
4905 | } | |
4906 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4907 | kcred, NULL, 0); | |
4908 | nvlist_free(nvlist); | |
4909 | break; | |
4910 | ||
4911 | case ZFS_SMB_ACL_PURGE: | |
4912 | error = zfs_smb_acl_purge(sharedir); | |
4913 | break; | |
4914 | ||
4915 | default: | |
2e528b49 | 4916 | error = SET_ERROR(EINVAL); |
9babb374 BB |
4917 | break; |
4918 | } | |
4919 | ||
4920 | VN_RELE(vp); | |
4921 | VN_RELE(ZTOV(sharedir)); | |
4922 | ||
3558fd73 | 4923 | ZFS_EXIT(zsb); |
9babb374 BB |
4924 | |
4925 | return (error); | |
325f0235 | 4926 | #else |
2e528b49 | 4927 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 4928 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4929 | } |
4930 | ||
45d1cae3 | 4931 | /* |
13fe0198 MA |
4932 | * innvl: { |
4933 | * "holds" -> { snapname -> holdname (string), ... } | |
4934 | * (optional) "cleanup_fd" -> fd (int32) | |
4935 | * } | |
45d1cae3 | 4936 | * |
13fe0198 MA |
4937 | * outnvl: { |
4938 | * snapname -> error value (int32) | |
4939 | * ... | |
4940 | * } | |
45d1cae3 | 4941 | */ |
13fe0198 | 4942 | /* ARGSUSED */ |
45d1cae3 | 4943 | static int |
13fe0198 | 4944 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 4945 | { |
13fe0198 MA |
4946 | nvlist_t *holds; |
4947 | int cleanup_fd = -1; | |
572e2857 BB |
4948 | int error; |
4949 | minor_t minor = 0; | |
45d1cae3 | 4950 | |
13fe0198 MA |
4951 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
4952 | if (error != 0) | |
2e528b49 | 4953 | return (SET_ERROR(EINVAL)); |
572e2857 | 4954 | |
13fe0198 MA |
4955 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
4956 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
4957 | if (error != 0) | |
572e2857 | 4958 | return (error); |
572e2857 | 4959 | } |
572e2857 | 4960 | |
13fe0198 MA |
4961 | error = dsl_dataset_user_hold(holds, minor, errlist); |
4962 | if (minor != 0) | |
4963 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 4964 | return (error); |
45d1cae3 BB |
4965 | } |
4966 | ||
4967 | /* | |
13fe0198 | 4968 | * innvl is not used. |
45d1cae3 | 4969 | * |
13fe0198 MA |
4970 | * outnvl: { |
4971 | * holdname -> time added (uint64 seconds since epoch) | |
4972 | * ... | |
4973 | * } | |
45d1cae3 | 4974 | */ |
13fe0198 | 4975 | /* ARGSUSED */ |
45d1cae3 | 4976 | static int |
13fe0198 | 4977 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 4978 | { |
13fe0198 | 4979 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
4980 | } |
4981 | ||
4982 | /* | |
13fe0198 MA |
4983 | * innvl: { |
4984 | * snapname -> { holdname, ... } | |
4985 | * ... | |
4986 | * } | |
45d1cae3 | 4987 | * |
13fe0198 MA |
4988 | * outnvl: { |
4989 | * snapname -> error value (int32) | |
4990 | * ... | |
4991 | * } | |
45d1cae3 | 4992 | */ |
13fe0198 | 4993 | /* ARGSUSED */ |
45d1cae3 | 4994 | static int |
13fe0198 | 4995 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 4996 | { |
13fe0198 | 4997 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
4998 | } |
4999 | ||
26685276 BB |
5000 | /* |
5001 | * inputs: | |
5002 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 5003 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
5004 | * |
5005 | * outputs: | |
5006 | * zc_nvlist_dst next nvlist event | |
5007 | * zc_cookie dropped events since last get | |
26685276 BB |
5008 | */ |
5009 | static int | |
5010 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
5011 | { | |
5012 | zfs_zevent_t *ze; | |
5013 | nvlist_t *event = NULL; | |
5014 | minor_t minor; | |
5015 | uint64_t dropped = 0; | |
5016 | int error; | |
5017 | ||
5018 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5019 | if (error != 0) | |
5020 | return (error); | |
5021 | ||
5022 | do { | |
baa40d45 BB |
5023 | error = zfs_zevent_next(ze, &event, |
5024 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
5025 | if (event != NULL) { |
5026 | zc->zc_cookie = dropped; | |
5027 | error = put_nvlist(zc, event); | |
baa40d45 | 5028 | nvlist_free(event); |
26685276 BB |
5029 | } |
5030 | ||
5031 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
5032 | break; | |
5033 | ||
5034 | if ((error == 0) || (error != ENOENT)) | |
5035 | break; | |
5036 | ||
5037 | error = zfs_zevent_wait(ze); | |
13fe0198 | 5038 | if (error != 0) |
26685276 BB |
5039 | break; |
5040 | } while (1); | |
5041 | ||
5042 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5043 | ||
5044 | return (error); | |
5045 | } | |
5046 | ||
5047 | /* | |
5048 | * outputs: | |
5049 | * zc_cookie cleared events count | |
5050 | */ | |
5051 | static int | |
5052 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
5053 | { | |
5054 | int count; | |
5055 | ||
5056 | zfs_zevent_drain_all(&count); | |
5057 | zc->zc_cookie = count; | |
5058 | ||
d1d7e268 | 5059 | return (0); |
26685276 BB |
5060 | } |
5061 | ||
75e3ff58 BB |
5062 | /* |
5063 | * inputs: | |
5064 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5065 | * zc_cleanup zevent file descriptor | |
5066 | */ | |
5067 | static int | |
5068 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5069 | { | |
5070 | zfs_zevent_t *ze; | |
5071 | minor_t minor; | |
5072 | int error; | |
5073 | ||
5074 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5075 | if (error != 0) | |
5076 | return (error); | |
5077 | ||
5078 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5079 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5080 | ||
5081 | return (error); | |
5082 | } | |
5083 | ||
330d06f9 MA |
5084 | /* |
5085 | * inputs: | |
5086 | * zc_name name of new filesystem or snapshot | |
5087 | * zc_value full name of old snapshot | |
5088 | * | |
5089 | * outputs: | |
5090 | * zc_cookie space in bytes | |
5091 | * zc_objset_type compressed space in bytes | |
5092 | * zc_perm_action uncompressed space in bytes | |
5093 | */ | |
5094 | static int | |
5095 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5096 | { | |
5097 | int error; | |
13fe0198 | 5098 | dsl_pool_t *dp; |
330d06f9 MA |
5099 | dsl_dataset_t *new, *old; |
5100 | ||
13fe0198 | 5101 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5102 | if (error != 0) |
5103 | return (error); | |
13fe0198 MA |
5104 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5105 | if (error != 0) { | |
5106 | dsl_pool_rele(dp, FTAG); | |
5107 | return (error); | |
5108 | } | |
5109 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5110 | if (error != 0) { |
5111 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5112 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5113 | return (error); |
5114 | } | |
5115 | ||
5116 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5117 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5118 | dsl_dataset_rele(old, FTAG); | |
5119 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5120 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5121 | return (error); |
5122 | } | |
5123 | ||
5124 | /* | |
6f1ffb06 MA |
5125 | * innvl: { |
5126 | * "firstsnap" -> snapshot name | |
5127 | * } | |
330d06f9 | 5128 | * |
6f1ffb06 MA |
5129 | * outnvl: { |
5130 | * "used" -> space in bytes | |
5131 | * "compressed" -> compressed space in bytes | |
5132 | * "uncompressed" -> uncompressed space in bytes | |
5133 | * } | |
330d06f9 MA |
5134 | */ |
5135 | static int | |
6f1ffb06 | 5136 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
5137 | { |
5138 | int error; | |
13fe0198 | 5139 | dsl_pool_t *dp; |
330d06f9 | 5140 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
5141 | char *firstsnap; |
5142 | uint64_t used, comp, uncomp; | |
330d06f9 | 5143 | |
6f1ffb06 | 5144 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
2e528b49 | 5145 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5146 | |
13fe0198 | 5147 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5148 | if (error != 0) |
5149 | return (error); | |
13fe0198 MA |
5150 | |
5151 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
5152 | if (error != 0) { | |
5153 | dsl_pool_rele(dp, FTAG); | |
5154 | return (error); | |
5155 | } | |
5156 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
330d06f9 MA |
5157 | if (error != 0) { |
5158 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5159 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5160 | return (error); |
5161 | } | |
5162 | ||
6f1ffb06 | 5163 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5164 | dsl_dataset_rele(old, FTAG); |
5165 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5166 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5167 | fnvlist_add_uint64(outnvl, "used", used); |
5168 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5169 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5170 | return (error); |
5171 | } | |
5172 | ||
34dc7c2f | 5173 | /* |
6f1ffb06 MA |
5174 | * innvl: { |
5175 | * "fd" -> file descriptor to write stream to (int32) | |
5176 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
5177 | * } | |
5178 | * | |
5179 | * outnvl is unused | |
34dc7c2f | 5180 | */ |
6f1ffb06 MA |
5181 | /* ARGSUSED */ |
5182 | static int | |
5183 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5184 | { | |
6f1ffb06 MA |
5185 | int error; |
5186 | offset_t off; | |
13fe0198 | 5187 | char *fromname = NULL; |
6f1ffb06 | 5188 | int fd; |
13fe0198 | 5189 | file_t *fp; |
6f1ffb06 MA |
5190 | |
5191 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5192 | if (error != 0) | |
2e528b49 | 5193 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5194 | |
13fe0198 | 5195 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5196 | |
13fe0198 | 5197 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 5198 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
5199 | |
5200 | off = fp->f_offset; | |
13fe0198 | 5201 | error = dmu_send(snapname, fromname, fd, fp->f_vnode, &off); |
6f1ffb06 MA |
5202 | |
5203 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5204 | fp->f_offset = off; | |
13fe0198 | 5205 | |
6f1ffb06 | 5206 | releasef(fd); |
6f1ffb06 MA |
5207 | return (error); |
5208 | } | |
5209 | ||
5210 | /* | |
5211 | * Determine approximately how large a zfs send stream will be -- the number | |
5212 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5213 | * | |
5214 | * innvl: { | |
5215 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
5216 | * } | |
5217 | * | |
5218 | * outnvl: { | |
5219 | * "space" -> bytes of space (uint64) | |
5220 | * } | |
5221 | */ | |
5222 | static int | |
5223 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5224 | { | |
13fe0198 MA |
5225 | dsl_pool_t *dp; |
5226 | dsl_dataset_t *fromsnap = NULL; | |
5227 | dsl_dataset_t *tosnap; | |
6f1ffb06 MA |
5228 | int error; |
5229 | char *fromname; | |
5230 | uint64_t space; | |
5231 | ||
13fe0198 MA |
5232 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5233 | if (error != 0) | |
6f1ffb06 MA |
5234 | return (error); |
5235 | ||
13fe0198 MA |
5236 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5237 | if (error != 0) { | |
5238 | dsl_pool_rele(dp, FTAG); | |
5239 | return (error); | |
5240 | } | |
5241 | ||
6f1ffb06 MA |
5242 | error = nvlist_lookup_string(innvl, "fromsnap", &fromname); |
5243 | if (error == 0) { | |
13fe0198 MA |
5244 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); |
5245 | if (error != 0) { | |
5246 | dsl_dataset_rele(tosnap, FTAG); | |
5247 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5248 | return (error); |
5249 | } | |
5250 | } | |
5251 | ||
5252 | error = dmu_send_estimate(tosnap, fromsnap, &space); | |
5253 | fnvlist_add_uint64(outnvl, "space", space); | |
5254 | ||
5255 | if (fromsnap != NULL) | |
13fe0198 MA |
5256 | dsl_dataset_rele(fromsnap, FTAG); |
5257 | dsl_dataset_rele(tosnap, FTAG); | |
5258 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5259 | return (error); |
5260 | } | |
5261 | ||
5262 | ||
5263 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; | |
5264 | ||
5265 | static void | |
5266 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5267 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5268 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
5269 | { | |
5270 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5271 | ||
5272 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5273 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5274 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5275 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5276 | ||
5277 | vec->zvec_legacy_func = func; | |
5278 | vec->zvec_secpolicy = secpolicy; | |
5279 | vec->zvec_namecheck = namecheck; | |
5280 | vec->zvec_allow_log = log_history; | |
5281 | vec->zvec_pool_check = pool_check; | |
5282 | } | |
5283 | ||
5284 | /* | |
5285 | * See the block comment at the beginning of this file for details on | |
5286 | * each argument to this function. | |
5287 | */ | |
5288 | static void | |
5289 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
5290 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5291 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
5292 | boolean_t allow_log) | |
5293 | { | |
5294 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5295 | ||
5296 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5297 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5298 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5299 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5300 | ||
5301 | /* if we are logging, the name must be valid */ | |
5302 | ASSERT(!allow_log || namecheck != NO_NAME); | |
5303 | ||
5304 | vec->zvec_name = name; | |
5305 | vec->zvec_func = func; | |
5306 | vec->zvec_secpolicy = secpolicy; | |
5307 | vec->zvec_namecheck = namecheck; | |
5308 | vec->zvec_pool_check = pool_check; | |
5309 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
5310 | vec->zvec_allow_log = allow_log; | |
5311 | } | |
5312 | ||
5313 | static void | |
5314 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5315 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
5316 | zfs_ioc_poolcheck_t pool_check) | |
5317 | { | |
5318 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5319 | POOL_NAME, log_history, pool_check); | |
5320 | } | |
5321 | ||
5322 | static void | |
5323 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5324 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
5325 | { | |
5326 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5327 | DATASET_NAME, B_FALSE, pool_check); | |
5328 | } | |
5329 | ||
5330 | static void | |
5331 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5332 | { | |
5333 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
5334 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5335 | } | |
5336 | ||
5337 | static void | |
5338 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5339 | zfs_secpolicy_func_t *secpolicy) | |
5340 | { | |
5341 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5342 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5343 | } | |
5344 | ||
5345 | static void | |
5346 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
5347 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
5348 | { | |
5349 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5350 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
5351 | } | |
5352 | ||
5353 | static void | |
5354 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5355 | { | |
5356 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
5357 | zfs_secpolicy_read); | |
5358 | } | |
5359 | ||
5360 | static void | |
5361 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5362 | zfs_secpolicy_func_t *secpolicy) | |
5363 | { | |
5364 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5365 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5366 | } | |
5367 | ||
5368 | static void | |
5369 | zfs_ioctl_init(void) | |
5370 | { | |
5371 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
5372 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
5373 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5374 | ||
5375 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
5376 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
5377 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
5378 | ||
5379 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
5380 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
5381 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5382 | ||
5383 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
5384 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
5385 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5386 | ||
5387 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
5388 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
5389 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5390 | ||
5391 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
5392 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
5393 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5394 | ||
5395 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
5396 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
5397 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5398 | ||
5399 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
5400 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
5401 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5402 | ||
13fe0198 MA |
5403 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
5404 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
5405 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5406 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
5407 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
5408 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5409 | ||
5410 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
5411 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
5412 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5413 | ||
46ba1e59 MA |
5414 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
5415 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
5416 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); | |
5417 | ||
da536844 MA |
5418 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
5419 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
5420 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5421 | ||
5422 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
5423 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
5424 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5425 | ||
5426 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
5427 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
5428 | POOL_NAME, | |
5429 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5430 | ||
6f1ffb06 MA |
5431 | /* IOCTLS that use the legacy function signature */ |
5432 | ||
5433 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
5434 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
5435 | ||
5436 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
5437 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5438 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
5439 | zfs_ioc_pool_scan); | |
5440 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
5441 | zfs_ioc_pool_upgrade); | |
5442 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
5443 | zfs_ioc_vdev_add); | |
5444 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
5445 | zfs_ioc_vdev_remove); | |
5446 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
5447 | zfs_ioc_vdev_set_state); | |
5448 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
5449 | zfs_ioc_vdev_attach); | |
5450 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
5451 | zfs_ioc_vdev_detach); | |
5452 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
5453 | zfs_ioc_vdev_setpath); | |
5454 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
5455 | zfs_ioc_vdev_setfru); | |
5456 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
5457 | zfs_ioc_pool_set_props); | |
5458 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
5459 | zfs_ioc_vdev_split); | |
5460 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
5461 | zfs_ioc_pool_reguid); | |
5462 | ||
5463 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
5464 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
5465 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
5466 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
5467 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
5468 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
5469 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
5470 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
5471 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
5472 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
5473 | ||
5474 | /* | |
5475 | * pool destroy, and export don't log the history as part of | |
5476 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
5477 | * does the logging of those commands. | |
5478 | */ | |
5479 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
5480 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); | |
5481 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, | |
5482 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); | |
5483 | ||
5484 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
5485 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5486 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
5487 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5488 | ||
5489 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
5490 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
5491 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
5492 | zfs_ioc_dsobj_to_dsname, | |
5493 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
5494 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
5495 | zfs_ioc_pool_get_history, | |
5496 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
5497 | ||
5498 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
5499 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5500 | ||
5501 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
ac72fac3 | 5502 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); |
6f1ffb06 MA |
5503 | zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
5504 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5505 | ||
5506 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
5507 | zfs_ioc_space_written); | |
6f1ffb06 MA |
5508 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
5509 | zfs_ioc_objset_recvd_props); | |
5510 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
5511 | zfs_ioc_next_obj); | |
5512 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
5513 | zfs_ioc_get_fsacl); | |
5514 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
5515 | zfs_ioc_objset_stats); | |
5516 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
5517 | zfs_ioc_objset_zplprops); | |
5518 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
5519 | zfs_ioc_dataset_list_next); | |
5520 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
5521 | zfs_ioc_snapshot_list_next); | |
5522 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
5523 | zfs_ioc_send_progress); | |
5524 | ||
5525 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
5526 | zfs_ioc_diff, zfs_secpolicy_diff); | |
5527 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
5528 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
5529 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
5530 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
5531 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
5532 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
5533 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
5534 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
5535 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
5536 | zfs_ioc_send, zfs_secpolicy_send); | |
5537 | ||
5538 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
5539 | zfs_secpolicy_none); | |
5540 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
5541 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
5542 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
5543 | zfs_secpolicy_rename); | |
5544 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
5545 | zfs_secpolicy_recv); | |
5546 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
5547 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
5548 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
5549 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
5550 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
5551 | zfs_secpolicy_set_fsacl); | |
5552 | ||
5553 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
5554 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
5555 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
5556 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
5557 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
5558 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
5559 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5560 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
5561 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
5562 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5563 | ||
5564 | /* | |
ba6a2402 | 5565 | * ZoL functions |
6f1ffb06 | 5566 | */ |
6f1ffb06 MA |
5567 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
5568 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5569 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
5570 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
5571 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
5572 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 5573 | } |
34dc7c2f | 5574 | |
9babb374 | 5575 | int |
572e2857 BB |
5576 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
5577 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
5578 | { |
5579 | spa_t *spa; | |
5580 | int error; | |
5581 | ||
5582 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
5583 | ||
572e2857 BB |
5584 | if (check & POOL_CHECK_NONE) |
5585 | return (0); | |
5586 | ||
9babb374 BB |
5587 | error = spa_open(name, &spa, FTAG); |
5588 | if (error == 0) { | |
572e2857 | 5589 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 5590 | error = SET_ERROR(EAGAIN); |
572e2857 | 5591 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 5592 | error = SET_ERROR(EROFS); |
9babb374 BB |
5593 | spa_close(spa, FTAG); |
5594 | } | |
5595 | return (error); | |
5596 | } | |
5597 | ||
325f0235 BB |
5598 | static void * |
5599 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
5600 | { | |
5601 | zfsdev_state_t *zs; | |
5602 | ||
3937ab20 | 5603 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 5604 | if (zs->zs_minor == minor) { |
3937ab20 | 5605 | smp_rmb(); |
325f0235 | 5606 | switch (which) { |
d1d7e268 MK |
5607 | case ZST_ONEXIT: |
5608 | return (zs->zs_onexit); | |
5609 | case ZST_ZEVENT: | |
5610 | return (zs->zs_zevent); | |
5611 | case ZST_ALL: | |
5612 | return (zs); | |
325f0235 BB |
5613 | } |
5614 | } | |
5615 | } | |
5616 | ||
d1d7e268 | 5617 | return (NULL); |
325f0235 BB |
5618 | } |
5619 | ||
5620 | void * | |
5621 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
5622 | { | |
5623 | void *ptr; | |
5624 | ||
325f0235 | 5625 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 5626 | |
d1d7e268 | 5627 | return (ptr); |
325f0235 BB |
5628 | } |
5629 | ||
5630 | minor_t | |
5631 | zfsdev_getminor(struct file *filp) | |
5632 | { | |
5633 | ASSERT(filp != NULL); | |
5634 | ASSERT(filp->private_data != NULL); | |
5635 | ||
5636 | return (((zfsdev_state_t *)filp->private_data)->zs_minor); | |
5637 | } | |
5638 | ||
572e2857 | 5639 | /* |
325f0235 BB |
5640 | * Find a free minor number. The zfsdev_state_list is expected to |
5641 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
5642 | */ |
5643 | minor_t | |
5644 | zfsdev_minor_alloc(void) | |
5645 | { | |
325f0235 | 5646 | static minor_t last_minor = 0; |
572e2857 BB |
5647 | minor_t m; |
5648 | ||
5649 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
5650 | ||
5651 | for (m = last_minor + 1; m != last_minor; m++) { | |
5652 | if (m > ZFSDEV_MAX_MINOR) | |
5653 | m = 1; | |
325f0235 | 5654 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
5655 | last_minor = m; |
5656 | return (m); | |
5657 | } | |
5658 | } | |
5659 | ||
5660 | return (0); | |
5661 | } | |
5662 | ||
5663 | static int | |
325f0235 | 5664 | zfsdev_state_init(struct file *filp) |
572e2857 | 5665 | { |
3937ab20 | 5666 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 5667 | minor_t minor; |
3937ab20 | 5668 | boolean_t newzs = B_FALSE; |
572e2857 BB |
5669 | |
5670 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 5671 | |
d1d7e268 MK |
5672 | minor = zfsdev_minor_alloc(); |
5673 | if (minor == 0) | |
5674 | return (SET_ERROR(ENXIO)); | |
325f0235 | 5675 | |
3937ab20 TC |
5676 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
5677 | if (zs->zs_minor == -1) | |
5678 | break; | |
5679 | zsprev = zs; | |
5680 | } | |
5681 | ||
5682 | if (!zs) { | |
5683 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
5684 | newzs = B_TRUE; | |
5685 | } | |
572e2857 | 5686 | |
325f0235 | 5687 | zs->zs_file = filp; |
325f0235 | 5688 | filp->private_data = zs; |
572e2857 | 5689 | |
325f0235 BB |
5690 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
5691 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 5692 | |
3937ab20 TC |
5693 | |
5694 | /* | |
5695 | * In order to provide for lock-free concurrent read access | |
5696 | * to the minor list in zfsdev_get_state_impl(), new entries | |
5697 | * must be completely written before linking them into the | |
5698 | * list whereas existing entries are already linked; the last | |
5699 | * operation must be updating zs_minor (from -1 to the new | |
5700 | * value). | |
5701 | */ | |
5702 | if (newzs) { | |
5703 | zs->zs_minor = minor; | |
5704 | smp_wmb(); | |
5705 | zsprev->zs_next = zs; | |
5706 | } else { | |
5707 | smp_wmb(); | |
5708 | zs->zs_minor = minor; | |
5709 | } | |
572e2857 BB |
5710 | |
5711 | return (0); | |
5712 | } | |
5713 | ||
325f0235 BB |
5714 | static int |
5715 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 5716 | { |
325f0235 | 5717 | zfsdev_state_t *zs; |
572e2857 | 5718 | |
325f0235 BB |
5719 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
5720 | ASSERT(filp->private_data != NULL); | |
572e2857 | 5721 | |
325f0235 | 5722 | zs = filp->private_data; |
3937ab20 | 5723 | zs->zs_minor = -1; |
325f0235 BB |
5724 | zfs_onexit_destroy(zs->zs_onexit); |
5725 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 5726 | |
d1d7e268 | 5727 | return (0); |
572e2857 BB |
5728 | } |
5729 | ||
5730 | static int | |
325f0235 | 5731 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 5732 | { |
325f0235 | 5733 | int error; |
572e2857 | 5734 | |
325f0235 BB |
5735 | mutex_enter(&zfsdev_state_lock); |
5736 | error = zfsdev_state_init(filp); | |
5737 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 5738 | |
325f0235 | 5739 | return (-error); |
572e2857 BB |
5740 | } |
5741 | ||
5742 | static int | |
325f0235 | 5743 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 5744 | { |
325f0235 | 5745 | int error; |
572e2857 BB |
5746 | |
5747 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 5748 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
5749 | mutex_exit(&zfsdev_state_lock); |
5750 | ||
325f0235 | 5751 | return (-error); |
572e2857 BB |
5752 | } |
5753 | ||
325f0235 BB |
5754 | static long |
5755 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
5756 | { |
5757 | zfs_cmd_t *zc; | |
6f1ffb06 | 5758 | uint_t vecnum; |
4fd762f8 | 5759 | int error, rc, flag = 0; |
6f1ffb06 | 5760 | const zfs_ioc_vec_t *vec; |
fb8e608d | 5761 | char *saved_poolname = NULL; |
6f1ffb06 MA |
5762 | nvlist_t *innvl = NULL; |
5763 | ||
5764 | vecnum = cmd - ZFS_IOC_FIRST; | |
5765 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
2e528b49 | 5766 | return (-SET_ERROR(EINVAL)); |
6f1ffb06 | 5767 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 5768 | |
2e0358cb BB |
5769 | /* |
5770 | * The registered ioctl list may be sparse, verify that either | |
5771 | * a normal or legacy handler are registered. | |
5772 | */ | |
5773 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
5774 | return (-SET_ERROR(EINVAL)); | |
5775 | ||
00b46022 | 5776 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 5777 | |
9babb374 | 5778 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5779 | if (error != 0) { |
2e528b49 | 5780 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5781 | goto out; |
5782 | } | |
34dc7c2f | 5783 | |
6f1ffb06 MA |
5784 | zc->zc_iflags = flag & FKIOCTL; |
5785 | if (zc->zc_nvlist_src_size != 0) { | |
5786 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
5787 | zc->zc_iflags, &innvl); | |
5788 | if (error != 0) | |
5789 | goto out; | |
5790 | } | |
34dc7c2f BB |
5791 | |
5792 | /* | |
5793 | * Ensure that all pool/dataset names are valid before we pass down to | |
5794 | * the lower layers. | |
5795 | */ | |
6f1ffb06 MA |
5796 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
5797 | switch (vec->zvec_namecheck) { | |
5798 | case POOL_NAME: | |
5799 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5800 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5801 | else |
572e2857 | 5802 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5803 | vec->zvec_namecheck, vec->zvec_pool_check); |
5804 | break; | |
34dc7c2f | 5805 | |
6f1ffb06 MA |
5806 | case DATASET_NAME: |
5807 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5808 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5809 | else |
572e2857 | 5810 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5811 | vec->zvec_namecheck, vec->zvec_pool_check); |
5812 | break; | |
34dc7c2f | 5813 | |
6f1ffb06 MA |
5814 | case NO_NAME: |
5815 | break; | |
34dc7c2f BB |
5816 | } |
5817 | ||
34dc7c2f | 5818 | |
6f1ffb06 MA |
5819 | if (error == 0 && !(flag & FKIOCTL)) |
5820 | error = vec->zvec_secpolicy(zc, innvl, CRED()); | |
5821 | ||
5822 | if (error != 0) | |
5823 | goto out; | |
5824 | ||
5825 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
5826 | saved_poolname = strdup(zc->zc_name); |
5827 | if (saved_poolname == NULL) { | |
5828 | error = SET_ERROR(ENOMEM); | |
5829 | goto out; | |
5830 | } else { | |
5831 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
5832 | } | |
6f1ffb06 MA |
5833 | |
5834 | if (vec->zvec_func != NULL) { | |
5835 | nvlist_t *outnvl; | |
5836 | int puterror = 0; | |
5837 | spa_t *spa; | |
5838 | nvlist_t *lognv = NULL; | |
5839 | ||
5840 | ASSERT(vec->zvec_legacy_func == NULL); | |
5841 | ||
5842 | /* | |
5843 | * Add the innvl to the lognv before calling the func, | |
5844 | * in case the func changes the innvl. | |
5845 | */ | |
5846 | if (vec->zvec_allow_log) { | |
5847 | lognv = fnvlist_alloc(); | |
5848 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
5849 | vec->zvec_name); | |
5850 | if (!nvlist_empty(innvl)) { | |
5851 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
5852 | innvl); | |
5853 | } | |
5854 | } | |
5855 | ||
8769db39 | 5856 | VERIFY0(nvlist_alloc(&outnvl, NV_UNIQUE_NAME, KM_PUSHPAGE)); |
6f1ffb06 MA |
5857 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
5858 | ||
5859 | if (error == 0 && vec->zvec_allow_log && | |
5860 | spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
5861 | if (!nvlist_empty(outnvl)) { | |
5862 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
5863 | outnvl); | |
5864 | } | |
5865 | (void) spa_history_log_nvl(spa, lognv); | |
5866 | spa_close(spa, FTAG); | |
5867 | } | |
5868 | fnvlist_free(lognv); | |
5869 | ||
5870 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
5871 | int smusherror = 0; | |
5872 | if (vec->zvec_smush_outnvlist) { | |
5873 | smusherror = nvlist_smush(outnvl, | |
5874 | zc->zc_nvlist_dst_size); | |
5875 | } | |
5876 | if (smusherror == 0) | |
5877 | puterror = put_nvlist(zc, outnvl); | |
5878 | } | |
5879 | ||
5880 | if (puterror != 0) | |
5881 | error = puterror; | |
5882 | ||
5883 | nvlist_free(outnvl); | |
5884 | } else { | |
5885 | error = vec->zvec_legacy_func(zc); | |
5886 | } | |
5887 | ||
5888 | out: | |
5889 | nvlist_free(innvl); | |
9babb374 | 5890 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5891 | if (error == 0 && rc != 0) |
2e528b49 | 5892 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5893 | if (error == 0 && vec->zvec_allow_log) { |
5894 | char *s = tsd_get(zfs_allow_log_key); | |
5895 | if (s != NULL) | |
5896 | strfree(s); | |
fb8e608d TC |
5897 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
5898 | } else { | |
5899 | if (saved_poolname != NULL) | |
4fd762f8 | 5900 | strfree(saved_poolname); |
34dc7c2f BB |
5901 | } |
5902 | ||
5903 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5904 | return (-error); |
34dc7c2f BB |
5905 | } |
5906 | ||
325f0235 BB |
5907 | #ifdef CONFIG_COMPAT |
5908 | static long | |
5909 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5910 | { |
d1d7e268 | 5911 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
5912 | } |
5913 | #else | |
d1d7e268 | 5914 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5915 | #endif |
34dc7c2f | 5916 | |
325f0235 | 5917 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
5918 | .open = zfsdev_open, |
5919 | .release = zfsdev_release, | |
5920 | .unlocked_ioctl = zfsdev_ioctl, | |
5921 | .compat_ioctl = zfsdev_compat_ioctl, | |
5922 | .owner = THIS_MODULE, | |
325f0235 | 5923 | }; |
34dc7c2f | 5924 | |
325f0235 | 5925 | static struct miscdevice zfs_misc = { |
d1d7e268 MK |
5926 | .minor = MISC_DYNAMIC_MINOR, |
5927 | .name = ZFS_DRIVER, | |
5928 | .fops = &zfsdev_fops, | |
325f0235 | 5929 | }; |
34dc7c2f BB |
5930 | |
5931 | static int | |
325f0235 | 5932 | zfs_attach(void) |
34dc7c2f | 5933 | { |
325f0235 | 5934 | int error; |
34dc7c2f | 5935 | |
325f0235 | 5936 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
5937 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
5938 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 5939 | |
325f0235 | 5940 | error = misc_register(&zfs_misc); |
d1d7e268 | 5941 | if (error != 0) { |
325f0235 BB |
5942 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); |
5943 | return (error); | |
5944 | } | |
34dc7c2f | 5945 | |
325f0235 | 5946 | return (0); |
34dc7c2f BB |
5947 | } |
5948 | ||
325f0235 BB |
5949 | static void |
5950 | zfs_detach(void) | |
34dc7c2f | 5951 | { |
325f0235 | 5952 | int error; |
3937ab20 | 5953 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 5954 | |
325f0235 | 5955 | error = misc_deregister(&zfs_misc); |
13fe0198 | 5956 | if (error != 0) |
325f0235 | 5957 | printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error); |
34dc7c2f | 5958 | |
325f0235 | 5959 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
5960 | |
5961 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
5962 | if (zsprev) | |
5963 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
5964 | zsprev = zs; | |
5965 | } | |
5966 | if (zsprev) | |
5967 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
5968 | } |
5969 | ||
6f1ffb06 MA |
5970 | static void |
5971 | zfs_allow_log_destroy(void *arg) | |
5972 | { | |
5973 | char *poolname = arg; | |
5974 | strfree(poolname); | |
5975 | } | |
325f0235 BB |
5976 | |
5977 | #ifdef DEBUG | |
d1d7e268 | 5978 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 5979 | #else |
d1d7e268 | 5980 | #define ZFS_DEBUG_STR "" |
325f0235 | 5981 | #endif |
34dc7c2f BB |
5982 | |
5983 | int | |
5984 | _init(void) | |
5985 | { | |
5986 | int error; | |
5987 | ||
5988 | spa_init(FREAD | FWRITE); | |
5989 | zfs_init(); | |
34dc7c2f | 5990 | |
325f0235 BB |
5991 | if ((error = zvol_init()) != 0) |
5992 | goto out1; | |
5993 | ||
6f1ffb06 MA |
5994 | zfs_ioctl_init(); |
5995 | ||
325f0235 BB |
5996 | if ((error = zfs_attach()) != 0) |
5997 | goto out2; | |
34dc7c2f | 5998 | |
d5446cfc | 5999 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
6000 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
6001 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 6002 | |
4b5d425f | 6003 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
6004 | "ZFS pool version %s, ZFS filesystem version %s\n", |
6005 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
6006 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
6007 | #ifndef CONFIG_FS_POSIX_ACL |
6008 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
6009 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
6010 | |
6011 | return (0); | |
325f0235 BB |
6012 | |
6013 | out2: | |
6014 | (void) zvol_fini(); | |
6015 | out1: | |
6016 | zfs_fini(); | |
6017 | spa_fini(); | |
4b5d425f | 6018 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
6019 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
6020 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
6021 | |
6022 | return (error); | |
34dc7c2f BB |
6023 | } |
6024 | ||
6025 | int | |
6026 | _fini(void) | |
6027 | { | |
325f0235 | 6028 | zfs_detach(); |
34dc7c2f BB |
6029 | zvol_fini(); |
6030 | zfs_fini(); | |
6031 | spa_fini(); | |
46e18b3f | 6032 | |
d5446cfc | 6033 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 6034 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 6035 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 6036 | |
4b5d425f | 6037 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 6038 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 6039 | |
325f0235 | 6040 | return (0); |
34dc7c2f | 6041 | } |
325f0235 BB |
6042 | |
6043 | #ifdef HAVE_SPL | |
6044 | spl_module_init(_init); | |
6045 | spl_module_exit(_fini); | |
6046 | ||
6047 | MODULE_DESCRIPTION("ZFS"); | |
6048 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
6049 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 6050 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
325f0235 | 6051 | #endif /* HAVE_SPL */ |