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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. |
1bd201e7 | 28 | * Copyright (c) 2012 by Delphix. All rights reserved. |
37abac6d | 29 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
9759c60f | 30 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
6f1ffb06 MA |
31 | * Copyright (c) 2012 by Delphix. All rights reserved. |
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> | |
183 | #include <sys/dsl_userhold.h> | |
9759c60f ED |
184 | #include <sys/zfeature.h> |
185 | ||
325f0235 | 186 | #include <linux/miscdevice.h> |
34dc7c2f BB |
187 | |
188 | #include "zfs_namecheck.h" | |
189 | #include "zfs_prop.h" | |
190 | #include "zfs_deleg.h" | |
428870ff | 191 | #include "zfs_comutil.h" |
34dc7c2f | 192 | |
325f0235 BB |
193 | kmutex_t zfsdev_state_lock; |
194 | list_t zfsdev_state_list; | |
34dc7c2f BB |
195 | |
196 | extern void zfs_init(void); | |
197 | extern void zfs_fini(void); | |
198 | ||
6f1ffb06 MA |
199 | uint_t zfs_fsyncer_key; |
200 | extern uint_t rrw_tsd_key; | |
201 | static uint_t zfs_allow_log_key; | |
202 | ||
203 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
204 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
205 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 206 | |
9babb374 BB |
207 | typedef enum { |
208 | NO_NAME, | |
209 | POOL_NAME, | |
210 | DATASET_NAME | |
211 | } zfs_ioc_namecheck_t; | |
212 | ||
572e2857 BB |
213 | typedef enum { |
214 | POOL_CHECK_NONE = 1 << 0, | |
215 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 216 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
217 | } zfs_ioc_poolcheck_t; |
218 | ||
34dc7c2f | 219 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 220 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
221 | zfs_ioc_func_t *zvec_func; |
222 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 223 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 224 | boolean_t zvec_allow_log; |
572e2857 | 225 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
226 | boolean_t zvec_smush_outnvlist; |
227 | const char *zvec_name; | |
34dc7c2f BB |
228 | } zfs_ioc_vec_t; |
229 | ||
9babb374 BB |
230 | /* This array is indexed by zfs_userquota_prop_t */ |
231 | static const char *userquota_perms[] = { | |
232 | ZFS_DELEG_PERM_USERUSED, | |
233 | ZFS_DELEG_PERM_USERQUOTA, | |
234 | ZFS_DELEG_PERM_GROUPUSED, | |
235 | ZFS_DELEG_PERM_GROUPQUOTA, | |
236 | }; | |
237 | ||
238 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
239 | static int zfs_check_settable(const char *name, nvpair_t *property, |
240 | cred_t *cr); | |
241 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
242 | nvlist_t **errors); | |
b128c09f BB |
243 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
244 | boolean_t *); | |
6f1ffb06 MA |
245 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
246 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 247 | |
13fe0198 | 248 | static int zfs_prop_activate_feature(spa_t *spa, zfeature_info_t *feature); |
9759c60f | 249 | |
34dc7c2f BB |
250 | static void |
251 | history_str_free(char *buf) | |
252 | { | |
253 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
254 | } | |
255 | ||
256 | static char * | |
257 | history_str_get(zfs_cmd_t *zc) | |
258 | { | |
259 | char *buf; | |
260 | ||
b8864a23 | 261 | if (zc->zc_history == 0) |
34dc7c2f BB |
262 | return (NULL); |
263 | ||
00b46022 | 264 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
265 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
266 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
267 | history_str_free(buf); | |
268 | return (NULL); | |
269 | } | |
270 | ||
271 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
272 | ||
273 | return (buf); | |
274 | } | |
275 | ||
276 | /* | |
b128c09f BB |
277 | * Check to see if the named dataset is currently defined as bootable |
278 | */ | |
279 | static boolean_t | |
280 | zfs_is_bootfs(const char *name) | |
281 | { | |
428870ff | 282 | objset_t *os; |
b128c09f | 283 | |
428870ff BB |
284 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
285 | boolean_t ret; | |
286 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
287 | dmu_objset_rele(os, FTAG); | |
288 | return (ret); | |
b128c09f | 289 | } |
428870ff | 290 | return (B_FALSE); |
b128c09f BB |
291 | } |
292 | ||
293 | /* | |
294 | * zfs_earlier_version | |
34dc7c2f BB |
295 | * |
296 | * Return non-zero if the spa version is less than requested version. | |
297 | */ | |
298 | static int | |
b128c09f | 299 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 300 | { |
34dc7c2f BB |
301 | spa_t *spa; |
302 | ||
303 | if (spa_open(name, &spa, FTAG) == 0) { | |
304 | if (spa_version(spa) < version) { | |
305 | spa_close(spa, FTAG); | |
306 | return (1); | |
307 | } | |
308 | spa_close(spa, FTAG); | |
309 | } | |
310 | return (0); | |
311 | } | |
312 | ||
313 | /* | |
b128c09f | 314 | * zpl_earlier_version |
34dc7c2f | 315 | * |
b128c09f | 316 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 317 | */ |
b128c09f BB |
318 | static boolean_t |
319 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
320 | { |
321 | objset_t *os; | |
b128c09f | 322 | boolean_t rc = B_TRUE; |
34dc7c2f | 323 | |
428870ff | 324 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 325 | uint64_t zplversion; |
34dc7c2f | 326 | |
428870ff BB |
327 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
328 | dmu_objset_rele(os, FTAG); | |
329 | return (B_TRUE); | |
330 | } | |
331 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
332 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
333 | rc = zplversion < version; | |
428870ff | 334 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
335 | } |
336 | return (rc); | |
337 | } | |
338 | ||
339 | static void | |
340 | zfs_log_history(zfs_cmd_t *zc) | |
341 | { | |
342 | spa_t *spa; | |
343 | char *buf; | |
344 | ||
345 | if ((buf = history_str_get(zc)) == NULL) | |
346 | return; | |
347 | ||
348 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
349 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 350 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
351 | spa_close(spa, FTAG); |
352 | } | |
353 | history_str_free(buf); | |
354 | } | |
355 | ||
356 | /* | |
357 | * Policy for top-level read operations (list pools). Requires no privileges, | |
358 | * and can be used in the local zone, as there is no associated dataset. | |
359 | */ | |
360 | /* ARGSUSED */ | |
361 | static int | |
6f1ffb06 | 362 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
363 | { |
364 | return (0); | |
365 | } | |
366 | ||
367 | /* | |
368 | * Policy for dataset read operations (list children, get statistics). Requires | |
369 | * no privileges, but must be visible in the local zone. | |
370 | */ | |
371 | /* ARGSUSED */ | |
372 | static int | |
6f1ffb06 | 373 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
374 | { |
375 | if (INGLOBALZONE(curproc) || | |
376 | zone_dataset_visible(zc->zc_name, NULL)) | |
377 | return (0); | |
378 | ||
379 | return (ENOENT); | |
380 | } | |
381 | ||
382 | static int | |
572e2857 | 383 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 384 | { |
34dc7c2f BB |
385 | int writable = 1; |
386 | ||
387 | /* | |
388 | * The dataset must be visible by this zone -- check this first | |
389 | * so they don't see EPERM on something they shouldn't know about. | |
390 | */ | |
391 | if (!INGLOBALZONE(curproc) && | |
392 | !zone_dataset_visible(dataset, &writable)) | |
393 | return (ENOENT); | |
394 | ||
34dc7c2f BB |
395 | if (INGLOBALZONE(curproc)) { |
396 | /* | |
397 | * If the fs is zoned, only root can access it from the | |
398 | * global zone. | |
399 | */ | |
400 | if (secpolicy_zfs(cr) && zoned) | |
401 | return (EPERM); | |
402 | } else { | |
403 | /* | |
404 | * If we are in a local zone, the 'zoned' property must be set. | |
405 | */ | |
406 | if (!zoned) | |
407 | return (EPERM); | |
408 | ||
409 | /* must be writable by this zone */ | |
410 | if (!writable) | |
411 | return (EPERM); | |
412 | } | |
413 | return (0); | |
414 | } | |
415 | ||
572e2857 BB |
416 | static int |
417 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
418 | { | |
419 | uint64_t zoned; | |
420 | ||
421 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
422 | return (ENOENT); | |
423 | ||
424 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
425 | } | |
426 | ||
427 | static int | |
428 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
429 | { | |
430 | uint64_t zoned; | |
431 | ||
13fe0198 | 432 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
572e2857 | 433 | return (ENOENT); |
572e2857 BB |
434 | |
435 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
436 | } | |
437 | ||
6f1ffb06 | 438 | static int |
13fe0198 MA |
439 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
440 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
441 | { |
442 | int error; | |
443 | ||
330d06f9 | 444 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
445 | if (error == 0) { |
446 | error = secpolicy_zfs(cr); | |
13fe0198 | 447 | if (error != 0) |
6f1ffb06 | 448 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
449 | } |
450 | return (error); | |
451 | } | |
452 | ||
6f1ffb06 | 453 | static int |
13fe0198 | 454 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
455 | { |
456 | int error; | |
13fe0198 MA |
457 | dsl_dataset_t *ds; |
458 | dsl_pool_t *dp; | |
572e2857 | 459 | |
13fe0198 MA |
460 | error = dsl_pool_hold(name, FTAG, &dp); |
461 | if (error != 0) | |
462 | return (error); | |
463 | ||
464 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
465 | if (error != 0) { | |
466 | dsl_pool_rele(dp, FTAG); | |
467 | return (error); | |
572e2857 | 468 | } |
13fe0198 MA |
469 | |
470 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
471 | ||
472 | dsl_dataset_rele(ds, FTAG); | |
473 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
474 | return (error); |
475 | } | |
476 | ||
428870ff BB |
477 | /* |
478 | * Policy for setting the security label property. | |
479 | * | |
480 | * Returns 0 for success, non-zero for access and other errors. | |
481 | */ | |
34dc7c2f | 482 | static int |
428870ff | 483 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 484 | { |
d2c15e84 | 485 | #ifdef HAVE_MLSLABEL |
428870ff BB |
486 | char ds_hexsl[MAXNAMELEN]; |
487 | bslabel_t ds_sl, new_sl; | |
488 | boolean_t new_default = FALSE; | |
489 | uint64_t zoned; | |
490 | int needed_priv = -1; | |
491 | int error; | |
492 | ||
493 | /* First get the existing dataset label. */ | |
494 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
495 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 496 | if (error != 0) |
428870ff BB |
497 | return (EPERM); |
498 | ||
499 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
500 | new_default = TRUE; | |
501 | ||
502 | /* The label must be translatable */ | |
503 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
504 | return (EINVAL); | |
505 | ||
506 | /* | |
507 | * In a non-global zone, disallow attempts to set a label that | |
508 | * doesn't match that of the zone; otherwise no other checks | |
509 | * are needed. | |
510 | */ | |
511 | if (!INGLOBALZONE(curproc)) { | |
512 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
513 | return (EPERM); | |
514 | return (0); | |
515 | } | |
516 | ||
517 | /* | |
518 | * For global-zone datasets (i.e., those whose zoned property is | |
519 | * "off", verify that the specified new label is valid for the | |
520 | * global zone. | |
521 | */ | |
522 | if (dsl_prop_get_integer(name, | |
523 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
524 | return (EPERM); | |
525 | if (!zoned) { | |
526 | if (zfs_check_global_label(name, strval) != 0) | |
527 | return (EPERM); | |
528 | } | |
529 | ||
530 | /* | |
531 | * If the existing dataset label is nondefault, check if the | |
532 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 533 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
534 | * mounted (or isn't a dataset, doesn't exist, ...). |
535 | */ | |
536 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
537 | objset_t *os; | |
538 | static char *setsl_tag = "setsl_tag"; | |
539 | ||
540 | /* | |
541 | * Try to own the dataset; abort if there is any error, | |
542 | * (e.g., already mounted, in use, or other error). | |
543 | */ | |
544 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
545 | setsl_tag, &os); | |
13fe0198 | 546 | if (error != 0) |
428870ff BB |
547 | return (EPERM); |
548 | ||
549 | dmu_objset_disown(os, setsl_tag); | |
550 | ||
551 | if (new_default) { | |
552 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
553 | goto out_check; | |
554 | } | |
555 | ||
556 | if (hexstr_to_label(strval, &new_sl) != 0) | |
557 | return (EPERM); | |
558 | ||
559 | if (blstrictdom(&ds_sl, &new_sl)) | |
560 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
561 | else if (blstrictdom(&new_sl, &ds_sl)) | |
562 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
563 | } else { | |
564 | /* dataset currently has a default label */ | |
565 | if (!new_default) | |
566 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
567 | } | |
568 | ||
569 | out_check: | |
570 | if (needed_priv != -1) | |
571 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
572 | return (0); | |
d2c15e84 BB |
573 | #else |
574 | return ENOTSUP; | |
575 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
576 | } |
577 | ||
578 | static int | |
579 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
580 | cred_t *cr) | |
581 | { | |
582 | char *strval; | |
583 | ||
34dc7c2f BB |
584 | /* |
585 | * Check permissions for special properties. | |
586 | */ | |
587 | switch (prop) { | |
e75c13c3 BB |
588 | default: |
589 | break; | |
34dc7c2f BB |
590 | case ZFS_PROP_ZONED: |
591 | /* | |
592 | * Disallow setting of 'zoned' from within a local zone. | |
593 | */ | |
594 | if (!INGLOBALZONE(curproc)) | |
595 | return (EPERM); | |
596 | break; | |
597 | ||
598 | case ZFS_PROP_QUOTA: | |
599 | if (!INGLOBALZONE(curproc)) { | |
600 | uint64_t zoned; | |
601 | char setpoint[MAXNAMELEN]; | |
602 | /* | |
603 | * Unprivileged users are allowed to modify the | |
604 | * quota on things *under* (ie. contained by) | |
605 | * the thing they own. | |
606 | */ | |
428870ff | 607 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f BB |
608 | setpoint)) |
609 | return (EPERM); | |
428870ff | 610 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
34dc7c2f BB |
611 | return (EPERM); |
612 | } | |
613 | break; | |
428870ff BB |
614 | |
615 | case ZFS_PROP_MLSLABEL: | |
616 | if (!is_system_labeled()) | |
617 | return (EPERM); | |
618 | ||
619 | if (nvpair_value_string(propval, &strval) == 0) { | |
620 | int err; | |
621 | ||
622 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
623 | if (err != 0) | |
624 | return (err); | |
625 | } | |
626 | break; | |
34dc7c2f BB |
627 | } |
628 | ||
428870ff | 629 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
630 | } |
631 | ||
6f1ffb06 MA |
632 | /* ARGSUSED */ |
633 | static int | |
634 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
635 | { |
636 | int error; | |
637 | ||
638 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 639 | if (error != 0) |
34dc7c2f BB |
640 | return (error); |
641 | ||
642 | /* | |
643 | * permission to set permissions will be evaluated later in | |
644 | * dsl_deleg_can_allow() | |
645 | */ | |
646 | return (0); | |
647 | } | |
648 | ||
6f1ffb06 MA |
649 | /* ARGSUSED */ |
650 | static int | |
651 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 652 | { |
428870ff BB |
653 | return (zfs_secpolicy_write_perms(zc->zc_name, |
654 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
655 | } |
656 | ||
6f1ffb06 MA |
657 | /* ARGSUSED */ |
658 | static int | |
659 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 660 | { |
572e2857 BB |
661 | dsl_pool_t *dp; |
662 | dsl_dataset_t *ds; | |
663 | char *cp; | |
664 | int error; | |
665 | ||
666 | /* | |
667 | * Generate the current snapshot name from the given objsetid, then | |
668 | * use that name for the secpolicy/zone checks. | |
669 | */ | |
670 | cp = strchr(zc->zc_name, '@'); | |
671 | if (cp == NULL) | |
672 | return (EINVAL); | |
13fe0198 MA |
673 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
674 | if (error != 0) | |
572e2857 BB |
675 | return (error); |
676 | ||
572e2857 | 677 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
678 | if (error != 0) { |
679 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 680 | return (error); |
13fe0198 | 681 | } |
572e2857 BB |
682 | |
683 | dsl_dataset_name(ds, zc->zc_name); | |
684 | ||
685 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
686 | ZFS_DELEG_PERM_SEND, cr); | |
687 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 688 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
689 | |
690 | return (error); | |
34dc7c2f BB |
691 | } |
692 | ||
6f1ffb06 MA |
693 | /* ARGSUSED */ |
694 | static int | |
695 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
696 | { | |
697 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
698 | ZFS_DELEG_PERM_SEND, cr)); | |
699 | } | |
700 | ||
3c9609b3 | 701 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 702 | /* ARGSUSED */ |
9babb374 | 703 | static int |
6f1ffb06 | 704 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
705 | { |
706 | vnode_t *vp; | |
707 | int error; | |
708 | ||
709 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
710 | NO_FOLLOW, NULL, &vp)) != 0) | |
711 | return (error); | |
712 | ||
713 | /* Now make sure mntpnt and dataset are ZFS */ | |
714 | ||
715 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
716 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
717 | zc->zc_name) != 0)) { | |
718 | VN_RELE(vp); | |
719 | return (EPERM); | |
720 | } | |
721 | ||
722 | VN_RELE(vp); | |
723 | return (dsl_deleg_access(zc->zc_name, | |
724 | ZFS_DELEG_PERM_SHARE, cr)); | |
725 | } | |
3c9609b3 | 726 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 727 | |
34dc7c2f | 728 | int |
6f1ffb06 | 729 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 730 | { |
3c9609b3 | 731 | #ifdef HAVE_SMB_SHARE |
34dc7c2f BB |
732 | if (!INGLOBALZONE(curproc)) |
733 | return (EPERM); | |
734 | ||
735 | if (secpolicy_nfs(cr) == 0) { | |
736 | return (0); | |
737 | } else { | |
6f1ffb06 | 738 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 739 | } |
325f0235 BB |
740 | #else |
741 | return (ENOTSUP); | |
3c9609b3 | 742 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 743 | } |
34dc7c2f | 744 | |
9babb374 | 745 | int |
6f1ffb06 | 746 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 747 | { |
3c9609b3 | 748 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
749 | if (!INGLOBALZONE(curproc)) |
750 | return (EPERM); | |
34dc7c2f | 751 | |
9babb374 BB |
752 | if (secpolicy_smb(cr) == 0) { |
753 | return (0); | |
754 | } else { | |
6f1ffb06 | 755 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 756 | } |
325f0235 BB |
757 | #else |
758 | return (ENOTSUP); | |
3c9609b3 | 759 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
760 | } |
761 | ||
762 | static int | |
763 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
764 | { | |
765 | char *cp; | |
766 | ||
767 | /* | |
768 | * Remove the @bla or /bla from the end of the name to get the parent. | |
769 | */ | |
770 | (void) strncpy(parent, datasetname, parentsize); | |
771 | cp = strrchr(parent, '@'); | |
772 | if (cp != NULL) { | |
773 | cp[0] = '\0'; | |
774 | } else { | |
775 | cp = strrchr(parent, '/'); | |
776 | if (cp == NULL) | |
777 | return (ENOENT); | |
778 | cp[0] = '\0'; | |
779 | } | |
780 | ||
781 | return (0); | |
782 | } | |
783 | ||
784 | int | |
785 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
786 | { | |
787 | int error; | |
788 | ||
789 | if ((error = zfs_secpolicy_write_perms(name, | |
790 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
791 | return (error); | |
792 | ||
793 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
794 | } | |
795 | ||
6f1ffb06 | 796 | /* ARGSUSED */ |
34dc7c2f | 797 | static int |
6f1ffb06 | 798 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
799 | { |
800 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
801 | } | |
802 | ||
803 | /* | |
428870ff | 804 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 805 | * descendant mount and destroy permissions. |
34dc7c2f | 806 | */ |
6f1ffb06 | 807 | /* ARGSUSED */ |
34dc7c2f | 808 | static int |
6f1ffb06 | 809 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 810 | { |
6f1ffb06 MA |
811 | nvlist_t *snaps; |
812 | nvpair_t *pair, *nextpair; | |
813 | int error = 0; | |
428870ff | 814 | |
6f1ffb06 MA |
815 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
816 | return (EINVAL); | |
817 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
818 | pair = nextpair) { | |
13fe0198 | 819 | dsl_pool_t *dp; |
6f1ffb06 | 820 | dsl_dataset_t *ds; |
428870ff | 821 | |
13fe0198 MA |
822 | error = dsl_pool_hold(nvpair_name(pair), FTAG, &dp); |
823 | if (error != 0) | |
824 | break; | |
6f1ffb06 | 825 | nextpair = nvlist_next_nvpair(snaps, pair); |
13fe0198 MA |
826 | error = dsl_dataset_hold(dp, nvpair_name(pair), FTAG, &ds); |
827 | if (error == 0) | |
6f1ffb06 | 828 | dsl_dataset_rele(ds, FTAG); |
13fe0198 MA |
829 | dsl_pool_rele(dp, FTAG); |
830 | ||
831 | if (error == 0) { | |
832 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), | |
833 | cr); | |
6f1ffb06 MA |
834 | } else if (error == ENOENT) { |
835 | /* | |
836 | * Ignore any snapshots that don't exist (we consider | |
837 | * them "already destroyed"). Remove the name from the | |
838 | * nvl here in case the snapshot is created between | |
839 | * now and when we try to destroy it (in which case | |
840 | * we don't want to destroy it since we haven't | |
841 | * checked for permission). | |
842 | */ | |
843 | fnvlist_remove_nvpair(snaps, pair); | |
844 | error = 0; | |
6f1ffb06 | 845 | } |
6f1ffb06 MA |
846 | if (error != 0) |
847 | break; | |
848 | } | |
428870ff | 849 | |
428870ff | 850 | return (error); |
34dc7c2f BB |
851 | } |
852 | ||
853 | int | |
854 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
855 | { | |
428870ff | 856 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
857 | int error; |
858 | ||
859 | if ((error = zfs_secpolicy_write_perms(from, | |
860 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
861 | return (error); | |
862 | ||
863 | if ((error = zfs_secpolicy_write_perms(from, | |
864 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
865 | return (error); | |
866 | ||
867 | if ((error = zfs_get_parent(to, parentname, | |
868 | sizeof (parentname))) != 0) | |
869 | return (error); | |
870 | ||
871 | if ((error = zfs_secpolicy_write_perms(parentname, | |
872 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
873 | return (error); | |
874 | ||
875 | if ((error = zfs_secpolicy_write_perms(parentname, | |
876 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
877 | return (error); | |
878 | ||
879 | return (error); | |
880 | } | |
881 | ||
6f1ffb06 | 882 | /* ARGSUSED */ |
34dc7c2f | 883 | static int |
6f1ffb06 | 884 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
885 | { |
886 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
887 | } | |
888 | ||
6f1ffb06 | 889 | /* ARGSUSED */ |
34dc7c2f | 890 | static int |
6f1ffb06 | 891 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 892 | { |
13fe0198 MA |
893 | dsl_pool_t *dp; |
894 | dsl_dataset_t *clone; | |
34dc7c2f BB |
895 | int error; |
896 | ||
897 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
898 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
899 | if (error != 0) |
900 | return (error); | |
901 | ||
902 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
903 | if (error != 0) | |
34dc7c2f BB |
904 | return (error); |
905 | ||
13fe0198 | 906 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
907 | |
908 | if (error == 0) { | |
13fe0198 MA |
909 | char parentname[MAXNAMELEN]; |
910 | dsl_dataset_t *origin = NULL; | |
34dc7c2f | 911 | dsl_dir_t *dd; |
13fe0198 | 912 | dd = clone->ds_dir; |
34dc7c2f | 913 | |
b128c09f | 914 | error = dsl_dataset_hold_obj(dd->dd_pool, |
13fe0198 MA |
915 | dd->dd_phys->dd_origin_obj, FTAG, &origin); |
916 | if (error != 0) { | |
917 | dsl_dataset_rele(clone, FTAG); | |
918 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
919 | return (error); |
920 | } | |
921 | ||
13fe0198 | 922 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
923 | ZFS_DELEG_PERM_MOUNT, cr); |
924 | ||
13fe0198 MA |
925 | dsl_dataset_name(origin, parentname); |
926 | if (error == 0) { | |
927 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 928 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
929 | } |
930 | dsl_dataset_rele(clone, FTAG); | |
931 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 932 | } |
13fe0198 | 933 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
934 | return (error); |
935 | } | |
936 | ||
6f1ffb06 | 937 | /* ARGSUSED */ |
34dc7c2f | 938 | static int |
6f1ffb06 | 939 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
940 | { |
941 | int error; | |
942 | ||
943 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
944 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
945 | return (error); | |
946 | ||
947 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
948 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
949 | return (error); | |
950 | ||
951 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
952 | ZFS_DELEG_PERM_CREATE, cr)); | |
953 | } | |
954 | ||
955 | int | |
956 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
957 | { | |
428870ff BB |
958 | return (zfs_secpolicy_write_perms(name, |
959 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
960 | } |
961 | ||
6f1ffb06 MA |
962 | /* |
963 | * Check for permission to create each snapshot in the nvlist. | |
964 | */ | |
965 | /* ARGSUSED */ | |
34dc7c2f | 966 | static int |
6f1ffb06 | 967 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 968 | { |
6f1ffb06 MA |
969 | nvlist_t *snaps; |
970 | int error = 0; | |
971 | nvpair_t *pair; | |
972 | ||
973 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
974 | return (EINVAL); | |
975 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
976 | pair = nvlist_next_nvpair(snaps, pair)) { | |
977 | char *name = nvpair_name(pair); | |
978 | char *atp = strchr(name, '@'); | |
34dc7c2f | 979 | |
6f1ffb06 MA |
980 | if (atp == NULL) { |
981 | error = EINVAL; | |
982 | break; | |
983 | } | |
984 | *atp = '\0'; | |
985 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
986 | *atp = '@'; | |
987 | if (error != 0) | |
988 | break; | |
989 | } | |
990 | return (error); | |
991 | } | |
992 | ||
993 | /* ARGSUSED */ | |
994 | static int | |
995 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
996 | { | |
997 | /* | |
998 | * Even root must have a proper TSD so that we know what pool | |
999 | * to log to. | |
1000 | */ | |
1001 | if (tsd_get(zfs_allow_log_key) == NULL) | |
1002 | return (EPERM); | |
1003 | return (0); | |
34dc7c2f BB |
1004 | } |
1005 | ||
1006 | static int | |
6f1ffb06 | 1007 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1008 | { |
428870ff BB |
1009 | char parentname[MAXNAMELEN]; |
1010 | int error; | |
6f1ffb06 | 1011 | char *origin; |
34dc7c2f BB |
1012 | |
1013 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1014 | sizeof (parentname))) != 0) | |
1015 | return (error); | |
1016 | ||
6f1ffb06 MA |
1017 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1018 | (error = zfs_secpolicy_write_perms(origin, | |
1019 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1020 | return (error); | |
34dc7c2f BB |
1021 | |
1022 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1023 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1024 | return (error); | |
1025 | ||
6f1ffb06 MA |
1026 | return (zfs_secpolicy_write_perms(parentname, |
1027 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1028 | } |
1029 | ||
34dc7c2f BB |
1030 | /* |
1031 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1032 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1033 | */ | |
1034 | /* ARGSUSED */ | |
1035 | static int | |
6f1ffb06 | 1036 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1037 | { |
1038 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
1039 | return (EPERM); | |
1040 | ||
1041 | return (0); | |
1042 | } | |
1043 | ||
572e2857 BB |
1044 | /* |
1045 | * Policy for object to name lookups. | |
1046 | */ | |
1047 | /* ARGSUSED */ | |
1048 | static int | |
6f1ffb06 | 1049 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1050 | { |
1051 | int error; | |
1052 | ||
1053 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1054 | return (0); | |
1055 | ||
1056 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1057 | return (error); | |
1058 | } | |
1059 | ||
34dc7c2f BB |
1060 | /* |
1061 | * Policy for fault injection. Requires all privileges. | |
1062 | */ | |
1063 | /* ARGSUSED */ | |
1064 | static int | |
6f1ffb06 | 1065 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1066 | { |
1067 | return (secpolicy_zinject(cr)); | |
1068 | } | |
1069 | ||
6f1ffb06 | 1070 | /* ARGSUSED */ |
34dc7c2f | 1071 | static int |
6f1ffb06 | 1072 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1073 | { |
1074 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1075 | ||
1076 | if (prop == ZPROP_INVAL) { | |
1077 | if (!zfs_prop_user(zc->zc_value)) | |
1078 | return (EINVAL); | |
1079 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1080 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1081 | } else { | |
428870ff BB |
1082 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1083 | NULL, cr)); | |
34dc7c2f BB |
1084 | } |
1085 | } | |
1086 | ||
9babb374 | 1087 | static int |
6f1ffb06 | 1088 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1089 | { |
6f1ffb06 | 1090 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1091 | if (err) |
1092 | return (err); | |
1093 | ||
1094 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
1095 | return (EINVAL); | |
1096 | ||
1097 | if (zc->zc_value[0] == 0) { | |
1098 | /* | |
1099 | * They are asking about a posix uid/gid. If it's | |
1100 | * themself, allow it. | |
1101 | */ | |
1102 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1103 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
1104 | if (zc->zc_guid == crgetuid(cr)) | |
1105 | return (0); | |
1106 | } else { | |
1107 | if (groupmember(zc->zc_guid, cr)) | |
1108 | return (0); | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1113 | userquota_perms[zc->zc_objset_type], cr)); | |
1114 | } | |
1115 | ||
1116 | static int | |
6f1ffb06 | 1117 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1118 | { |
6f1ffb06 | 1119 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1120 | if (err) |
1121 | return (err); | |
1122 | ||
1123 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
1124 | return (EINVAL); | |
1125 | ||
1126 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1127 | userquota_perms[zc->zc_objset_type], cr)); | |
1128 | } | |
1129 | ||
6f1ffb06 | 1130 | /* ARGSUSED */ |
9babb374 | 1131 | static int |
6f1ffb06 | 1132 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1133 | { |
428870ff BB |
1134 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1135 | NULL, cr)); | |
9babb374 BB |
1136 | } |
1137 | ||
6f1ffb06 | 1138 | /* ARGSUSED */ |
45d1cae3 | 1139 | static int |
6f1ffb06 | 1140 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1141 | { |
13fe0198 MA |
1142 | nvpair_t *pair; |
1143 | nvlist_t *holds; | |
1144 | int error; | |
1145 | ||
1146 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1147 | if (error != 0) | |
1148 | return (EINVAL); | |
1149 | ||
1150 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1151 | pair = nvlist_next_nvpair(holds, pair)) { | |
1152 | char fsname[MAXNAMELEN]; | |
1153 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1154 | if (error != 0) | |
1155 | return (error); | |
1156 | error = zfs_secpolicy_write_perms(fsname, | |
1157 | ZFS_DELEG_PERM_HOLD, cr); | |
1158 | if (error != 0) | |
1159 | return (error); | |
1160 | } | |
1161 | return (0); | |
45d1cae3 BB |
1162 | } |
1163 | ||
6f1ffb06 | 1164 | /* ARGSUSED */ |
45d1cae3 | 1165 | static int |
6f1ffb06 | 1166 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1167 | { |
13fe0198 MA |
1168 | nvpair_t *pair; |
1169 | int error; | |
1170 | ||
1171 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1172 | pair = nvlist_next_nvpair(innvl, pair)) { | |
1173 | char fsname[MAXNAMELEN]; | |
1174 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1175 | if (error != 0) | |
1176 | return (error); | |
1177 | error = zfs_secpolicy_write_perms(fsname, | |
1178 | ZFS_DELEG_PERM_RELEASE, cr); | |
1179 | if (error != 0) | |
1180 | return (error); | |
1181 | } | |
1182 | return (0); | |
45d1cae3 BB |
1183 | } |
1184 | ||
572e2857 BB |
1185 | /* |
1186 | * Policy for allowing temporary snapshots to be taken or released | |
1187 | */ | |
1188 | static int | |
6f1ffb06 | 1189 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1190 | { |
1191 | /* | |
1192 | * A temporary snapshot is the same as a snapshot, | |
1193 | * hold, destroy and release all rolled into one. | |
1194 | * Delegated diff alone is sufficient that we allow this. | |
1195 | */ | |
1196 | int error; | |
1197 | ||
1198 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1199 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1200 | return (0); | |
1201 | ||
6f1ffb06 | 1202 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1203 | if (error == 0) |
6f1ffb06 | 1204 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1205 | if (error == 0) |
6f1ffb06 | 1206 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1207 | if (error == 0) |
6f1ffb06 | 1208 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1209 | return (error); |
1210 | } | |
1211 | ||
34dc7c2f BB |
1212 | /* |
1213 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1214 | */ | |
1215 | static int | |
9babb374 | 1216 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1217 | { |
1218 | char *packed; | |
1219 | int error; | |
1220 | nvlist_t *list = NULL; | |
1221 | ||
1222 | /* | |
1223 | * Read in and unpack the user-supplied nvlist. | |
1224 | */ | |
1225 | if (size == 0) | |
1226 | return (EINVAL); | |
1227 | ||
00b46022 | 1228 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 1229 | |
9babb374 BB |
1230 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1231 | iflag)) != 0) { | |
34dc7c2f BB |
1232 | kmem_free(packed, size); |
1233 | return (error); | |
1234 | } | |
1235 | ||
1236 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
1237 | kmem_free(packed, size); | |
1238 | return (error); | |
1239 | } | |
1240 | ||
1241 | kmem_free(packed, size); | |
1242 | ||
1243 | *nvp = list; | |
1244 | return (0); | |
1245 | } | |
1246 | ||
6f1ffb06 MA |
1247 | /* |
1248 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1249 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1250 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1251 | * removed. | |
1252 | */ | |
428870ff | 1253 | static int |
6f1ffb06 | 1254 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1255 | { |
1256 | size_t size; | |
1257 | ||
6f1ffb06 | 1258 | size = fnvlist_size(errors); |
428870ff | 1259 | |
6f1ffb06 | 1260 | if (size > max) { |
428870ff BB |
1261 | nvpair_t *more_errors; |
1262 | int n = 0; | |
1263 | ||
6f1ffb06 | 1264 | if (max < 1024) |
428870ff BB |
1265 | return (ENOMEM); |
1266 | ||
6f1ffb06 MA |
1267 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1268 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1269 | |
1270 | do { | |
6f1ffb06 | 1271 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1272 | more_errors); |
6f1ffb06 | 1273 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1274 | n++; |
6f1ffb06 MA |
1275 | size = fnvlist_size(errors); |
1276 | } while (size > max); | |
428870ff | 1277 | |
6f1ffb06 MA |
1278 | fnvlist_remove_nvpair(errors, more_errors); |
1279 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1280 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1281 | } |
1282 | ||
1283 | return (0); | |
1284 | } | |
1285 | ||
34dc7c2f BB |
1286 | static int |
1287 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1288 | { | |
1289 | char *packed = NULL; | |
428870ff | 1290 | int error = 0; |
34dc7c2f | 1291 | size_t size; |
34dc7c2f | 1292 | |
6f1ffb06 | 1293 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1294 | |
1295 | if (size > zc->zc_nvlist_dst_size) { | |
1296 | error = ENOMEM; | |
1297 | } else { | |
6f1ffb06 | 1298 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1299 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1300 | size, zc->zc_iflags) != 0) | |
1301 | error = EFAULT; | |
6f1ffb06 | 1302 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1303 | } |
1304 | ||
1305 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1306 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1307 | return (error); |
1308 | } | |
1309 | ||
9babb374 | 1310 | static int |
3558fd73 | 1311 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1312 | { |
1313 | objset_t *os; | |
1314 | int error; | |
1315 | ||
428870ff | 1316 | error = dmu_objset_hold(dsname, FTAG, &os); |
13fe0198 | 1317 | if (error != 0) |
9babb374 | 1318 | return (error); |
428870ff BB |
1319 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1320 | dmu_objset_rele(os, FTAG); | |
1321 | return (EINVAL); | |
1322 | } | |
9babb374 | 1323 | |
428870ff | 1324 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1325 | *zsbp = dmu_objset_get_user(os); |
2cf7f52b | 1326 | if (*zsbp && (*zsbp)->z_sb) { |
61f218b0 | 1327 | atomic_inc(&((*zsbp)->z_sb->s_active)); |
9babb374 BB |
1328 | } else { |
1329 | error = ESRCH; | |
1330 | } | |
428870ff BB |
1331 | mutex_exit(&os->os_user_ptr_lock); |
1332 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1333 | return (error); |
1334 | } | |
1335 | ||
1336 | /* | |
3558fd73 | 1337 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1338 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1339 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1340 | * which prevents all inode ops from running. | |
9babb374 BB |
1341 | */ |
1342 | static int | |
3558fd73 | 1343 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1344 | { |
1345 | int error = 0; | |
9babb374 | 1346 | |
3558fd73 BB |
1347 | if (get_zfs_sb(name, zsbp) != 0) |
1348 | error = zfs_sb_create(name, zsbp); | |
9babb374 | 1349 | if (error == 0) { |
3558fd73 | 1350 | rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1351 | RW_READER, tag); |
3558fd73 | 1352 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1353 | /* |
1354 | * XXX we could probably try again, since the unmounting | |
1355 | * thread should be just about to disassociate the | |
1356 | * objset from the zfsvfs. | |
1357 | */ | |
3558fd73 | 1358 | rrw_exit(&(*zsbp)->z_teardown_lock, tag); |
9babb374 BB |
1359 | return (EBUSY); |
1360 | } | |
1361 | } | |
1362 | return (error); | |
1363 | } | |
1364 | ||
1365 | static void | |
3558fd73 | 1366 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1367 | { |
3558fd73 | 1368 | rrw_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1369 | |
2cf7f52b BB |
1370 | if (zsb->z_sb) { |
1371 | deactivate_super(zsb->z_sb); | |
9babb374 | 1372 | } else { |
3558fd73 BB |
1373 | dmu_objset_disown(zsb->z_os, zsb); |
1374 | zfs_sb_free(zsb); | |
9babb374 BB |
1375 | } |
1376 | } | |
1377 | ||
34dc7c2f BB |
1378 | static int |
1379 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1380 | { | |
1381 | int error; | |
1382 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1383 | nvlist_t *rootprops = NULL; |
1384 | nvlist_t *zplprops = NULL; | |
34dc7c2f | 1385 | |
c65aa5b2 BB |
1386 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1387 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1388 | return (error); |
1389 | ||
1390 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1391 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1392 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1393 | nvlist_free(config); |
1394 | return (error); | |
1395 | } | |
1396 | ||
b128c09f BB |
1397 | if (props) { |
1398 | nvlist_t *nvl = NULL; | |
1399 | uint64_t version = SPA_VERSION; | |
1400 | ||
1401 | (void) nvlist_lookup_uint64(props, | |
1402 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1403 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
b128c09f BB |
1404 | error = EINVAL; |
1405 | goto pool_props_bad; | |
1406 | } | |
1407 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1408 | if (nvl) { | |
1409 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1410 | if (error != 0) { | |
1411 | nvlist_free(config); | |
1412 | nvlist_free(props); | |
1413 | return (error); | |
1414 | } | |
1415 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1416 | } | |
1417 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1418 | error = zfs_fill_zplprops_root(version, rootprops, | |
1419 | zplprops, NULL); | |
13fe0198 | 1420 | if (error != 0) |
b128c09f BB |
1421 | goto pool_props_bad; |
1422 | } | |
1423 | ||
6f1ffb06 | 1424 | error = spa_create(zc->zc_name, config, props, zplprops); |
b128c09f BB |
1425 | |
1426 | /* | |
1427 | * Set the remaining root properties | |
1428 | */ | |
428870ff BB |
1429 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1430 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1431 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1432 | |
b128c09f BB |
1433 | pool_props_bad: |
1434 | nvlist_free(rootprops); | |
1435 | nvlist_free(zplprops); | |
34dc7c2f | 1436 | nvlist_free(config); |
b128c09f | 1437 | nvlist_free(props); |
34dc7c2f BB |
1438 | |
1439 | return (error); | |
1440 | } | |
1441 | ||
1442 | static int | |
1443 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1444 | { | |
1445 | int error; | |
1446 | zfs_log_history(zc); | |
1447 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1448 | if (error == 0) |
1449 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1450 | return (error); |
1451 | } | |
1452 | ||
1453 | static int | |
1454 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1455 | { | |
34dc7c2f BB |
1456 | nvlist_t *config, *props = NULL; |
1457 | uint64_t guid; | |
428870ff | 1458 | int error; |
34dc7c2f BB |
1459 | |
1460 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1461 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1462 | return (error); |
1463 | ||
1464 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1465 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1466 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1467 | nvlist_free(config); |
1468 | return (error); | |
1469 | } | |
1470 | ||
1471 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1472 | guid != zc->zc_guid) | |
1473 | error = EINVAL; | |
1474 | else | |
572e2857 | 1475 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1476 | |
572e2857 BB |
1477 | if (zc->zc_nvlist_dst != 0) { |
1478 | int err; | |
1479 | ||
1480 | if ((err = put_nvlist(zc, config)) != 0) | |
1481 | error = err; | |
1482 | } | |
428870ff | 1483 | |
34dc7c2f BB |
1484 | nvlist_free(config); |
1485 | ||
1486 | if (props) | |
1487 | nvlist_free(props); | |
1488 | ||
1489 | return (error); | |
1490 | } | |
1491 | ||
1492 | static int | |
1493 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1494 | { | |
1495 | int error; | |
b128c09f | 1496 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1497 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1498 | |
34dc7c2f | 1499 | zfs_log_history(zc); |
fb5f0bc8 | 1500 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1501 | if (error == 0) |
1502 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1503 | return (error); |
1504 | } | |
1505 | ||
1506 | static int | |
1507 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1508 | { | |
1509 | nvlist_t *configs; | |
1510 | int error; | |
1511 | ||
1512 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
1513 | return (EEXIST); | |
1514 | ||
1515 | error = put_nvlist(zc, configs); | |
1516 | ||
1517 | nvlist_free(configs); | |
1518 | ||
1519 | return (error); | |
1520 | } | |
1521 | ||
9ae529ec CS |
1522 | /* |
1523 | * inputs: | |
1524 | * zc_name name of the pool | |
1525 | * | |
1526 | * outputs: | |
1527 | * zc_cookie real errno | |
1528 | * zc_nvlist_dst config nvlist | |
1529 | * zc_nvlist_dst_size size of config nvlist | |
1530 | */ | |
34dc7c2f BB |
1531 | static int |
1532 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1533 | { | |
1534 | nvlist_t *config; | |
1535 | int error; | |
1536 | int ret = 0; | |
1537 | ||
1538 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1539 | sizeof (zc->zc_value)); | |
1540 | ||
1541 | if (config != NULL) { | |
1542 | ret = put_nvlist(zc, config); | |
1543 | nvlist_free(config); | |
1544 | ||
1545 | /* | |
1546 | * The config may be present even if 'error' is non-zero. | |
1547 | * In this case we return success, and preserve the real errno | |
1548 | * in 'zc_cookie'. | |
1549 | */ | |
1550 | zc->zc_cookie = error; | |
1551 | } else { | |
1552 | ret = error; | |
1553 | } | |
1554 | ||
1555 | return (ret); | |
1556 | } | |
1557 | ||
1558 | /* | |
1559 | * Try to import the given pool, returning pool stats as appropriate so that | |
1560 | * user land knows which devices are available and overall pool health. | |
1561 | */ | |
1562 | static int | |
1563 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1564 | { | |
1565 | nvlist_t *tryconfig, *config; | |
1566 | int error; | |
1567 | ||
1568 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1569 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1570 | return (error); |
1571 | ||
1572 | config = spa_tryimport(tryconfig); | |
1573 | ||
1574 | nvlist_free(tryconfig); | |
1575 | ||
1576 | if (config == NULL) | |
1577 | return (EINVAL); | |
1578 | ||
1579 | error = put_nvlist(zc, config); | |
1580 | nvlist_free(config); | |
1581 | ||
1582 | return (error); | |
1583 | } | |
1584 | ||
428870ff BB |
1585 | /* |
1586 | * inputs: | |
1587 | * zc_name name of the pool | |
1588 | * zc_cookie scan func (pool_scan_func_t) | |
1589 | */ | |
34dc7c2f | 1590 | static int |
428870ff | 1591 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1592 | { |
1593 | spa_t *spa; | |
1594 | int error; | |
1595 | ||
1596 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1597 | return (error); | |
1598 | ||
428870ff BB |
1599 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1600 | error = spa_scan_stop(spa); | |
1601 | else | |
1602 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1603 | |
1604 | spa_close(spa, FTAG); | |
1605 | ||
1606 | return (error); | |
1607 | } | |
1608 | ||
1609 | static int | |
1610 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1611 | { | |
1612 | spa_t *spa; | |
1613 | int error; | |
1614 | ||
1615 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1616 | if (error == 0) { | |
1617 | spa_freeze(spa); | |
1618 | spa_close(spa, FTAG); | |
1619 | } | |
1620 | return (error); | |
1621 | } | |
1622 | ||
1623 | static int | |
1624 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1625 | { | |
1626 | spa_t *spa; | |
1627 | int error; | |
1628 | ||
1629 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1630 | return (error); | |
1631 | ||
9ae529ec CS |
1632 | if (zc->zc_cookie < spa_version(spa) || |
1633 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f BB |
1634 | spa_close(spa, FTAG); |
1635 | return (EINVAL); | |
1636 | } | |
1637 | ||
1638 | spa_upgrade(spa, zc->zc_cookie); | |
1639 | spa_close(spa, FTAG); | |
1640 | ||
1641 | return (error); | |
1642 | } | |
1643 | ||
1644 | static int | |
1645 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1646 | { | |
1647 | spa_t *spa; | |
1648 | char *hist_buf; | |
1649 | uint64_t size; | |
1650 | int error; | |
1651 | ||
1652 | if ((size = zc->zc_history_len) == 0) | |
1653 | return (EINVAL); | |
1654 | ||
1655 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1656 | return (error); | |
1657 | ||
1658 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1659 | spa_close(spa, FTAG); | |
1660 | return (ENOTSUP); | |
1661 | } | |
1662 | ||
34b84cb8 | 1663 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1664 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1665 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1666 | error = ddi_copyout(hist_buf, |
1667 | (void *)(uintptr_t)zc->zc_history, | |
1668 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1669 | } |
1670 | ||
1671 | spa_close(spa, FTAG); | |
34b84cb8 | 1672 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1673 | return (error); |
1674 | } | |
1675 | ||
3541dc6d GA |
1676 | static int |
1677 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1678 | { | |
1679 | spa_t *spa; | |
1680 | int error; | |
1681 | ||
1682 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1683 | if (error == 0) { | |
1684 | error = spa_change_guid(spa); | |
1685 | spa_close(spa, FTAG); | |
1686 | } | |
1687 | return (error); | |
1688 | } | |
1689 | ||
34dc7c2f BB |
1690 | static int |
1691 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1692 | { | |
13fe0198 | 1693 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1694 | } |
1695 | ||
428870ff BB |
1696 | /* |
1697 | * inputs: | |
1698 | * zc_name name of filesystem | |
1699 | * zc_obj object to find | |
1700 | * | |
1701 | * outputs: | |
1702 | * zc_value name of object | |
1703 | */ | |
34dc7c2f BB |
1704 | static int |
1705 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1706 | { | |
428870ff | 1707 | objset_t *os; |
34dc7c2f BB |
1708 | int error; |
1709 | ||
428870ff BB |
1710 | /* XXX reading from objset not owned */ |
1711 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1712 | return (error); |
428870ff BB |
1713 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1714 | dmu_objset_rele(os, FTAG); | |
1715 | return (EINVAL); | |
1716 | } | |
1717 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1718 | sizeof (zc->zc_value)); |
428870ff | 1719 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1720 | |
1721 | return (error); | |
1722 | } | |
1723 | ||
572e2857 BB |
1724 | /* |
1725 | * inputs: | |
1726 | * zc_name name of filesystem | |
1727 | * zc_obj object to find | |
1728 | * | |
1729 | * outputs: | |
1730 | * zc_stat stats on object | |
1731 | * zc_value path to object | |
1732 | */ | |
1733 | static int | |
1734 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1735 | { | |
1736 | objset_t *os; | |
1737 | int error; | |
1738 | ||
1739 | /* XXX reading from objset not owned */ | |
1740 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1741 | return (error); | |
1742 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1743 | dmu_objset_rele(os, FTAG); | |
1744 | return (EINVAL); | |
1745 | } | |
1746 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1747 | sizeof (zc->zc_value)); | |
1748 | dmu_objset_rele(os, FTAG); | |
1749 | ||
1750 | return (error); | |
1751 | } | |
1752 | ||
34dc7c2f BB |
1753 | static int |
1754 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1755 | { | |
1756 | spa_t *spa; | |
1757 | int error; | |
1758 | nvlist_t *config, **l2cache, **spares; | |
1759 | uint_t nl2cache = 0, nspares = 0; | |
1760 | ||
1761 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1762 | if (error != 0) | |
1763 | return (error); | |
1764 | ||
1765 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1766 | zc->zc_iflags, &config); |
34dc7c2f BB |
1767 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, |
1768 | &l2cache, &nl2cache); | |
1769 | ||
1770 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, | |
1771 | &spares, &nspares); | |
1772 | ||
1773 | /* | |
1774 | * A root pool with concatenated devices is not supported. | |
1775 | * Thus, can not add a device to a root pool. | |
1776 | * | |
1777 | * Intent log device can not be added to a rootpool because | |
1778 | * during mountroot, zil is replayed, a seperated log device | |
1779 | * can not be accessed during the mountroot time. | |
1780 | * | |
1781 | * l2cache and spare devices are ok to be added to a rootpool. | |
1782 | */ | |
428870ff BB |
1783 | if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { |
1784 | nvlist_free(config); | |
34dc7c2f BB |
1785 | spa_close(spa, FTAG); |
1786 | return (EDOM); | |
1787 | } | |
1788 | ||
1789 | if (error == 0) { | |
1790 | error = spa_vdev_add(spa, config); | |
1791 | nvlist_free(config); | |
1792 | } | |
1793 | spa_close(spa, FTAG); | |
1794 | return (error); | |
1795 | } | |
1796 | ||
428870ff BB |
1797 | /* |
1798 | * inputs: | |
1799 | * zc_name name of the pool | |
1800 | * zc_nvlist_conf nvlist of devices to remove | |
1801 | * zc_cookie to stop the remove? | |
1802 | */ | |
34dc7c2f BB |
1803 | static int |
1804 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1805 | { | |
1806 | spa_t *spa; | |
1807 | int error; | |
1808 | ||
1809 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1810 | if (error != 0) | |
1811 | return (error); | |
1812 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1813 | spa_close(spa, FTAG); | |
1814 | return (error); | |
1815 | } | |
1816 | ||
1817 | static int | |
1818 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1819 | { | |
1820 | spa_t *spa; | |
1821 | int error; | |
1822 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1823 | ||
1824 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1825 | return (error); | |
1826 | switch (zc->zc_cookie) { | |
1827 | case VDEV_STATE_ONLINE: | |
1828 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1829 | break; | |
1830 | ||
1831 | case VDEV_STATE_OFFLINE: | |
1832 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1833 | break; | |
1834 | ||
1835 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1836 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1837 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1838 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1839 | ||
1840 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1841 | break; |
1842 | ||
1843 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1844 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1845 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1846 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1847 | ||
1848 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1849 | break; |
1850 | ||
1851 | default: | |
1852 | error = EINVAL; | |
1853 | } | |
1854 | zc->zc_cookie = newstate; | |
1855 | spa_close(spa, FTAG); | |
1856 | return (error); | |
1857 | } | |
1858 | ||
1859 | static int | |
1860 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1861 | { | |
1862 | spa_t *spa; | |
1863 | int replacing = zc->zc_cookie; | |
1864 | nvlist_t *config; | |
1865 | int error; | |
1866 | ||
1867 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1868 | return (error); | |
1869 | ||
1870 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1871 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1872 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1873 | nvlist_free(config); | |
1874 | } | |
1875 | ||
1876 | spa_close(spa, FTAG); | |
1877 | return (error); | |
1878 | } | |
1879 | ||
1880 | static int | |
1881 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1882 | { | |
1883 | spa_t *spa; | |
1884 | int error; | |
1885 | ||
1886 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1887 | return (error); | |
1888 | ||
fb5f0bc8 | 1889 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1890 | |
1891 | spa_close(spa, FTAG); | |
1892 | return (error); | |
1893 | } | |
1894 | ||
428870ff BB |
1895 | static int |
1896 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1897 | { | |
1898 | spa_t *spa; | |
1899 | nvlist_t *config, *props = NULL; | |
1900 | int error; | |
1901 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1902 | ||
1903 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1904 | return (error); | |
1905 | ||
c65aa5b2 BB |
1906 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1907 | zc->zc_iflags, &config))) { | |
428870ff BB |
1908 | spa_close(spa, FTAG); |
1909 | return (error); | |
1910 | } | |
1911 | ||
1912 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1913 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1914 | zc->zc_iflags, &props))) { | |
1915 | spa_close(spa, FTAG); | |
1916 | nvlist_free(config); | |
1917 | return (error); | |
1918 | } | |
1919 | ||
1920 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1921 | ||
1922 | spa_close(spa, FTAG); | |
1923 | ||
1924 | nvlist_free(config); | |
1925 | nvlist_free(props); | |
1926 | ||
1927 | return (error); | |
1928 | } | |
1929 | ||
34dc7c2f BB |
1930 | static int |
1931 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1932 | { | |
1933 | spa_t *spa; | |
1934 | char *path = zc->zc_value; | |
1935 | uint64_t guid = zc->zc_guid; | |
1936 | int error; | |
1937 | ||
1938 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1939 | if (error != 0) | |
1940 | return (error); | |
1941 | ||
1942 | error = spa_vdev_setpath(spa, guid, path); | |
1943 | spa_close(spa, FTAG); | |
1944 | return (error); | |
1945 | } | |
1946 | ||
9babb374 BB |
1947 | static int |
1948 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1949 | { | |
1950 | spa_t *spa; | |
1951 | char *fru = zc->zc_value; | |
1952 | uint64_t guid = zc->zc_guid; | |
1953 | int error; | |
1954 | ||
1955 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1956 | if (error != 0) | |
1957 | return (error); | |
1958 | ||
1959 | error = spa_vdev_setfru(spa, guid, fru); | |
1960 | spa_close(spa, FTAG); | |
1961 | return (error); | |
1962 | } | |
1963 | ||
34dc7c2f | 1964 | static int |
572e2857 | 1965 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 1966 | { |
572e2857 | 1967 | int error = 0; |
34dc7c2f BB |
1968 | nvlist_t *nv; |
1969 | ||
34dc7c2f BB |
1970 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
1971 | ||
1972 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 1973 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
1974 | dmu_objset_stats(os, nv); |
1975 | /* | |
1976 | * NB: zvol_get_stats() will read the objset contents, | |
1977 | * which we aren't supposed to do with a | |
b128c09f | 1978 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 1979 | * inconsistent. So this is a bit of a workaround... |
428870ff | 1980 | * XXX reading with out owning |
34dc7c2f | 1981 | */ |
330d06f9 MA |
1982 | if (!zc->zc_objset_stats.dds_inconsistent && |
1983 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
1984 | error = zvol_get_stats(os, nv); | |
1985 | if (error == EIO) | |
1986 | return (error); | |
c99c9001 | 1987 | VERIFY0(error); |
34dc7c2f | 1988 | } |
8a8f5c6b BB |
1989 | if (error == 0) |
1990 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
1991 | nvlist_free(nv); |
1992 | } | |
1993 | ||
572e2857 BB |
1994 | return (error); |
1995 | } | |
1996 | ||
1997 | /* | |
1998 | * inputs: | |
1999 | * zc_name name of filesystem | |
2000 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2001 | * | |
2002 | * outputs: | |
2003 | * zc_objset_stats stats | |
2004 | * zc_nvlist_dst property nvlist | |
2005 | * zc_nvlist_dst_size size of property nvlist | |
2006 | */ | |
2007 | static int | |
2008 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2009 | { | |
13fe0198 | 2010 | objset_t *os; |
572e2857 BB |
2011 | int error; |
2012 | ||
13fe0198 MA |
2013 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2014 | if (error == 0) { | |
2015 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2016 | dmu_objset_rele(os, FTAG); | |
2017 | } | |
572e2857 | 2018 | |
428870ff BB |
2019 | return (error); |
2020 | } | |
2021 | ||
2022 | /* | |
2023 | * inputs: | |
2024 | * zc_name name of filesystem | |
2025 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2026 | * | |
2027 | * outputs: | |
2028 | * zc_nvlist_dst received property nvlist | |
2029 | * zc_nvlist_dst_size size of received property nvlist | |
2030 | * | |
2031 | * Gets received properties (distinct from local properties on or after | |
2032 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2033 | * local property values. | |
2034 | */ | |
2035 | static int | |
26685276 | 2036 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2037 | { |
13fe0198 | 2038 | int error = 0; |
428870ff BB |
2039 | nvlist_t *nv; |
2040 | ||
428870ff BB |
2041 | /* |
2042 | * Without this check, we would return local property values if the | |
2043 | * caller has not already received properties on or after | |
2044 | * SPA_VERSION_RECVD_PROPS. | |
2045 | */ | |
13fe0198 | 2046 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
428870ff | 2047 | return (ENOTSUP); |
428870ff BB |
2048 | |
2049 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2050 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2051 | error = put_nvlist(zc, nv); |
2052 | nvlist_free(nv); | |
2053 | } | |
2054 | ||
34dc7c2f BB |
2055 | return (error); |
2056 | } | |
2057 | ||
2058 | static int | |
2059 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2060 | { | |
2061 | uint64_t value; | |
2062 | int error; | |
2063 | ||
2064 | /* | |
2065 | * zfs_get_zplprop() will either find a value or give us | |
2066 | * the default value (if there is one). | |
2067 | */ | |
2068 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2069 | return (error); | |
2070 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2071 | return (0); | |
2072 | } | |
2073 | ||
2074 | /* | |
2075 | * inputs: | |
2076 | * zc_name name of filesystem | |
2077 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2078 | * | |
2079 | * outputs: | |
2080 | * zc_nvlist_dst zpl property nvlist | |
2081 | * zc_nvlist_dst_size size of zpl property nvlist | |
2082 | */ | |
2083 | static int | |
2084 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2085 | { | |
2086 | objset_t *os; | |
2087 | int err; | |
2088 | ||
428870ff | 2089 | /* XXX reading without owning */ |
c65aa5b2 | 2090 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2091 | return (err); |
2092 | ||
2093 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2094 | ||
2095 | /* | |
2096 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2097 | * which we aren't supposed to do with a DS_MODE_USER |
2098 | * hold, because it could be inconsistent. | |
34dc7c2f | 2099 | */ |
b8864a23 | 2100 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2101 | !zc->zc_objset_stats.dds_inconsistent && |
2102 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2103 | nvlist_t *nv; | |
2104 | ||
2105 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2106 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2107 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2108 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2109 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2110 | err = put_nvlist(zc, nv); | |
2111 | nvlist_free(nv); | |
2112 | } else { | |
2113 | err = ENOENT; | |
2114 | } | |
428870ff | 2115 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2116 | return (err); |
2117 | } | |
2118 | ||
9babb374 BB |
2119 | static boolean_t |
2120 | dataset_name_hidden(const char *name) | |
2121 | { | |
2122 | /* | |
2123 | * Skip over datasets that are not visible in this zone, | |
2124 | * internal datasets (which have a $ in their name), and | |
2125 | * temporary datasets (which have a % in their name). | |
2126 | */ | |
2127 | if (strchr(name, '$') != NULL) | |
2128 | return (B_TRUE); | |
2129 | if (strchr(name, '%') != NULL) | |
2130 | return (B_TRUE); | |
2131 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2132 | return (B_TRUE); | |
2133 | return (B_FALSE); | |
2134 | } | |
2135 | ||
34dc7c2f BB |
2136 | /* |
2137 | * inputs: | |
2138 | * zc_name name of filesystem | |
2139 | * zc_cookie zap cursor | |
2140 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2141 | * | |
2142 | * outputs: | |
2143 | * zc_name name of next filesystem | |
9babb374 | 2144 | * zc_cookie zap cursor |
34dc7c2f BB |
2145 | * zc_objset_stats stats |
2146 | * zc_nvlist_dst property nvlist | |
2147 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2148 | */ |
2149 | static int | |
2150 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2151 | { | |
2152 | objset_t *os; | |
2153 | int error; | |
2154 | char *p; | |
428870ff | 2155 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2156 | |
428870ff | 2157 | top: |
c65aa5b2 | 2158 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f BB |
2159 | if (error == ENOENT) |
2160 | error = ESRCH; | |
2161 | return (error); | |
2162 | } | |
2163 | ||
2164 | p = strrchr(zc->zc_name, '/'); | |
2165 | if (p == NULL || p[1] != '\0') | |
2166 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2167 | p = zc->zc_name + strlen(zc->zc_name); | |
2168 | ||
2169 | do { | |
2170 | error = dmu_dir_list_next(os, | |
2171 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2172 | NULL, &zc->zc_cookie); | |
2173 | if (error == ENOENT) | |
2174 | error = ESRCH; | |
330d06f9 | 2175 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2176 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2177 | |
428870ff BB |
2178 | /* |
2179 | * If it's an internal dataset (ie. with a '$' in its name), | |
2180 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2181 | */ | |
2182 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2183 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2184 | if (error == ENOENT) { |
2185 | /* We lost a race with destroy, get the next one. */ | |
2186 | zc->zc_name[orig_len] = '\0'; | |
2187 | goto top; | |
2188 | } | |
2189 | } | |
34dc7c2f BB |
2190 | return (error); |
2191 | } | |
2192 | ||
2193 | /* | |
2194 | * inputs: | |
2195 | * zc_name name of filesystem | |
2196 | * zc_cookie zap cursor | |
2197 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2198 | * | |
2199 | * outputs: | |
2200 | * zc_name name of next snapshot | |
2201 | * zc_objset_stats stats | |
2202 | * zc_nvlist_dst property nvlist | |
2203 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2204 | */ |
2205 | static int | |
2206 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2207 | { | |
2208 | objset_t *os; | |
2209 | int error; | |
2210 | ||
428870ff | 2211 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2212 | if (error != 0) { |
b128c09f | 2213 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2214 | } |
34dc7c2f BB |
2215 | |
2216 | /* | |
2217 | * A dataset name of maximum length cannot have any snapshots, | |
2218 | * so exit immediately. | |
2219 | */ | |
2220 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2221 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2222 | return (ESRCH); |
2223 | } | |
2224 | ||
2225 | error = dmu_snapshot_list_next(os, | |
2226 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2227 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2228 | NULL); | |
2229 | ||
0cee2406 | 2230 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2231 | dsl_dataset_t *ds; |
2232 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2233 | ||
572e2857 | 2234 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2235 | if (error == 0) { |
572e2857 BB |
2236 | objset_t *ossnap; |
2237 | ||
2238 | error = dmu_objset_from_ds(ds, &ossnap); | |
2239 | if (error == 0) | |
2240 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2241 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2242 | } |
2243 | } else if (error == ENOENT) { | |
b128c09f | 2244 | error = ESRCH; |
428870ff | 2245 | } |
34dc7c2f | 2246 | |
572e2857 | 2247 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2248 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2249 | if (error != 0) |
34dc7c2f | 2250 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2251 | return (error); |
2252 | } | |
2253 | ||
428870ff BB |
2254 | static int |
2255 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2256 | { |
428870ff BB |
2257 | const char *propname = nvpair_name(pair); |
2258 | uint64_t *valary; | |
2259 | unsigned int vallen; | |
2260 | const char *domain; | |
2261 | char *dash; | |
2262 | zfs_userquota_prop_t type; | |
2263 | uint64_t rid; | |
2264 | uint64_t quota; | |
3558fd73 | 2265 | zfs_sb_t *zsb; |
428870ff BB |
2266 | int err; |
2267 | ||
2268 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2269 | nvlist_t *attrs; | |
2270 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2271 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2272 | &pair) != 0) | |
2273 | return (EINVAL); | |
2274 | } | |
34dc7c2f BB |
2275 | |
2276 | /* | |
428870ff BB |
2277 | * A correctly constructed propname is encoded as |
2278 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2279 | */ |
428870ff BB |
2280 | if ((dash = strchr(propname, '-')) == NULL || |
2281 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2282 | vallen != 3) | |
2283 | return (EINVAL); | |
34dc7c2f | 2284 | |
428870ff BB |
2285 | domain = dash + 1; |
2286 | type = valary[0]; | |
2287 | rid = valary[1]; | |
2288 | quota = valary[2]; | |
34dc7c2f | 2289 | |
3558fd73 | 2290 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2291 | if (err == 0) { |
3558fd73 BB |
2292 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2293 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2294 | } |
9babb374 | 2295 | |
428870ff BB |
2296 | return (err); |
2297 | } | |
34dc7c2f | 2298 | |
428870ff BB |
2299 | /* |
2300 | * If the named property is one that has a special function to set its value, | |
2301 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2302 | * not one of the special properties handled by this function, return -1. | |
2303 | * | |
2304 | * XXX: It would be better for callers of the property interface if we handled | |
2305 | * these special cases in dsl_prop.c (in the dsl layer). | |
2306 | */ | |
2307 | static int | |
2308 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2309 | nvpair_t *pair) | |
2310 | { | |
2311 | const char *propname = nvpair_name(pair); | |
2312 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2313 | uint64_t intval; | |
2314 | int err; | |
9babb374 | 2315 | |
428870ff BB |
2316 | if (prop == ZPROP_INVAL) { |
2317 | if (zfs_prop_userquota(propname)) | |
2318 | return (zfs_prop_set_userquota(dsname, pair)); | |
2319 | return (-1); | |
2320 | } | |
34dc7c2f | 2321 | |
428870ff BB |
2322 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2323 | nvlist_t *attrs; | |
2324 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2325 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2326 | &pair) == 0); | |
2327 | } | |
b128c09f | 2328 | |
428870ff BB |
2329 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2330 | return (-1); | |
34dc7c2f | 2331 | |
428870ff | 2332 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2333 | |
428870ff BB |
2334 | switch (prop) { |
2335 | case ZFS_PROP_QUOTA: | |
2336 | err = dsl_dir_set_quota(dsname, source, intval); | |
2337 | break; | |
2338 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2339 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff BB |
2340 | break; |
2341 | case ZFS_PROP_RESERVATION: | |
2342 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2343 | break; | |
2344 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2345 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2346 | break; |
2347 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2348 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2349 | break; |
0b4d1b58 ED |
2350 | case ZFS_PROP_SNAPDEV: |
2351 | err = zvol_set_snapdev(dsname, intval); | |
2352 | break; | |
428870ff BB |
2353 | case ZFS_PROP_VERSION: |
2354 | { | |
3558fd73 | 2355 | zfs_sb_t *zsb; |
428870ff | 2356 | |
3558fd73 | 2357 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2358 | break; |
b128c09f | 2359 | |
3558fd73 BB |
2360 | err = zfs_set_version(zsb, intval); |
2361 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2362 | |
428870ff BB |
2363 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2364 | zfs_cmd_t *zc; | |
34dc7c2f | 2365 | |
fa6e5ced BB |
2366 | zc = kmem_zalloc(sizeof (zfs_cmd_t), |
2367 | KM_SLEEP | KM_NODEBUG); | |
428870ff BB |
2368 | (void) strcpy(zc->zc_name, dsname); |
2369 | (void) zfs_ioc_userspace_upgrade(zc); | |
2370 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2371 | } |
428870ff BB |
2372 | break; |
2373 | } | |
9759c60f ED |
2374 | case ZFS_PROP_COMPRESSION: |
2375 | { | |
2376 | if (intval == ZIO_COMPRESS_LZ4) { | |
2377 | zfeature_info_t *feature = | |
2378 | &spa_feature_table[SPA_FEATURE_LZ4_COMPRESS]; | |
2379 | spa_t *spa; | |
9759c60f ED |
2380 | |
2381 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
2382 | return (err); | |
2383 | ||
9759c60f ED |
2384 | /* |
2385 | * Setting the LZ4 compression algorithm activates | |
2386 | * the feature. | |
2387 | */ | |
2388 | if (!spa_feature_is_active(spa, feature)) { | |
13fe0198 | 2389 | if ((err = zfs_prop_activate_feature(spa, |
9759c60f ED |
2390 | feature)) != 0) { |
2391 | spa_close(spa, FTAG); | |
2392 | return (err); | |
2393 | } | |
2394 | } | |
2395 | ||
2396 | spa_close(spa, FTAG); | |
2397 | } | |
2398 | /* | |
2399 | * We still want the default set action to be performed in the | |
2400 | * caller, we only performed zfeature settings here. | |
2401 | */ | |
2402 | err = -1; | |
2403 | break; | |
2404 | } | |
34dc7c2f | 2405 | |
428870ff BB |
2406 | default: |
2407 | err = -1; | |
2408 | } | |
34dc7c2f | 2409 | |
428870ff BB |
2410 | return (err); |
2411 | } | |
34dc7c2f | 2412 | |
428870ff BB |
2413 | /* |
2414 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2415 | * it continues to set as many as it can and returns the last error |
2416 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2417 | * with the list of names of all the properties that failed along with the | |
2418 | * corresponding error numbers. | |
428870ff | 2419 | * |
6f1ffb06 MA |
2420 | * If every property is set successfully, zero is returned and errlist is not |
2421 | * modified. | |
428870ff BB |
2422 | */ |
2423 | int | |
2424 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2425 | nvlist_t *errlist) |
428870ff BB |
2426 | { |
2427 | nvpair_t *pair; | |
2428 | nvpair_t *propval; | |
2429 | int rv = 0; | |
2430 | uint64_t intval; | |
2431 | char *strval; | |
34dc7c2f | 2432 | |
6f1ffb06 MA |
2433 | nvlist_t *genericnvl = fnvlist_alloc(); |
2434 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2435 | retry: |
2436 | pair = NULL; | |
2437 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2438 | const char *propname = nvpair_name(pair); | |
2439 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2440 | int err = 0; | |
2441 | ||
2442 | /* decode the property value */ | |
2443 | propval = pair; | |
2444 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2445 | nvlist_t *attrs; | |
6f1ffb06 | 2446 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2447 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2448 | &propval) != 0) | |
2449 | err = EINVAL; | |
9babb374 | 2450 | } |
34dc7c2f | 2451 | |
428870ff BB |
2452 | /* Validate value type */ |
2453 | if (err == 0 && prop == ZPROP_INVAL) { | |
2454 | if (zfs_prop_user(propname)) { | |
2455 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2456 | err = EINVAL; | |
2457 | } else if (zfs_prop_userquota(propname)) { | |
2458 | if (nvpair_type(propval) != | |
2459 | DATA_TYPE_UINT64_ARRAY) | |
2460 | err = EINVAL; | |
330d06f9 MA |
2461 | } else { |
2462 | err = EINVAL; | |
428870ff BB |
2463 | } |
2464 | } else if (err == 0) { | |
2465 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2466 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2467 | err = EINVAL; | |
2468 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { | |
34dc7c2f BB |
2469 | const char *unused; |
2470 | ||
6f1ffb06 | 2471 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2472 | |
2473 | switch (zfs_prop_get_type(prop)) { | |
2474 | case PROP_TYPE_NUMBER: | |
2475 | break; | |
2476 | case PROP_TYPE_STRING: | |
428870ff BB |
2477 | err = EINVAL; |
2478 | break; | |
34dc7c2f BB |
2479 | case PROP_TYPE_INDEX: |
2480 | if (zfs_prop_index_to_string(prop, | |
428870ff BB |
2481 | intval, &unused) != 0) |
2482 | err = EINVAL; | |
34dc7c2f BB |
2483 | break; |
2484 | default: | |
2485 | cmn_err(CE_PANIC, | |
2486 | "unknown property type"); | |
34dc7c2f | 2487 | } |
34dc7c2f | 2488 | } else { |
428870ff | 2489 | err = EINVAL; |
34dc7c2f | 2490 | } |
34dc7c2f | 2491 | } |
428870ff BB |
2492 | |
2493 | /* Validate permissions */ | |
2494 | if (err == 0) | |
2495 | err = zfs_check_settable(dsname, pair, CRED()); | |
2496 | ||
2497 | if (err == 0) { | |
2498 | err = zfs_prop_set_special(dsname, source, pair); | |
2499 | if (err == -1) { | |
2500 | /* | |
2501 | * For better performance we build up a list of | |
2502 | * properties to set in a single transaction. | |
2503 | */ | |
2504 | err = nvlist_add_nvpair(genericnvl, pair); | |
2505 | } else if (err != 0 && nvl != retrynvl) { | |
2506 | /* | |
2507 | * This may be a spurious error caused by | |
2508 | * receiving quota and reservation out of order. | |
2509 | * Try again in a second pass. | |
2510 | */ | |
2511 | err = nvlist_add_nvpair(retrynvl, pair); | |
2512 | } | |
2513 | } | |
2514 | ||
6f1ffb06 MA |
2515 | if (err != 0) { |
2516 | if (errlist != NULL) | |
2517 | fnvlist_add_int32(errlist, propname, err); | |
2518 | rv = err; | |
2519 | } | |
34dc7c2f BB |
2520 | } |
2521 | ||
428870ff BB |
2522 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2523 | nvl = retrynvl; | |
2524 | goto retry; | |
2525 | } | |
2526 | ||
2527 | if (!nvlist_empty(genericnvl) && | |
2528 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2529 | /* | |
2530 | * If this fails, we still want to set as many properties as we | |
2531 | * can, so try setting them individually. | |
2532 | */ | |
2533 | pair = NULL; | |
2534 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2535 | const char *propname = nvpair_name(pair); | |
2536 | int err = 0; | |
2537 | ||
2538 | propval = pair; | |
2539 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2540 | nvlist_t *attrs; | |
6f1ffb06 MA |
2541 | attrs = fnvpair_value_nvlist(pair); |
2542 | propval = fnvlist_lookup_nvpair(attrs, | |
2543 | ZPROP_VALUE); | |
428870ff BB |
2544 | } |
2545 | ||
2546 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2547 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2548 | err = dsl_prop_set_string(dsname, propname, |
2549 | source, strval); | |
428870ff | 2550 | } else { |
6f1ffb06 | 2551 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2552 | err = dsl_prop_set_int(dsname, propname, source, |
2553 | intval); | |
428870ff BB |
2554 | } |
2555 | ||
2556 | if (err != 0) { | |
6f1ffb06 MA |
2557 | if (errlist != NULL) { |
2558 | fnvlist_add_int32(errlist, propname, | |
2559 | err); | |
2560 | } | |
2561 | rv = err; | |
428870ff BB |
2562 | } |
2563 | } | |
9babb374 | 2564 | } |
9babb374 | 2565 | nvlist_free(genericnvl); |
428870ff BB |
2566 | nvlist_free(retrynvl); |
2567 | ||
428870ff | 2568 | return (rv); |
9babb374 BB |
2569 | } |
2570 | ||
2571 | /* | |
2572 | * Check that all the properties are valid user properties. | |
2573 | */ | |
2574 | static int | |
6f1ffb06 | 2575 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2576 | { |
428870ff | 2577 | nvpair_t *pair = NULL; |
9babb374 BB |
2578 | int error = 0; |
2579 | ||
428870ff BB |
2580 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2581 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2582 | char *valstr; |
2583 | ||
2584 | if (!zfs_prop_user(propname) || | |
428870ff | 2585 | nvpair_type(pair) != DATA_TYPE_STRING) |
9babb374 BB |
2586 | return (EINVAL); |
2587 | ||
c65aa5b2 BB |
2588 | if ((error = zfs_secpolicy_write_perms(fsname, |
2589 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2590 | return (error); |
2591 | ||
2592 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2593 | return (ENAMETOOLONG); | |
2594 | ||
428870ff | 2595 | VERIFY(nvpair_value_string(pair, &valstr) == 0); |
9babb374 BB |
2596 | if (strlen(valstr) >= ZAP_MAXVALUELEN) |
2597 | return (E2BIG); | |
2598 | } | |
34dc7c2f BB |
2599 | return (0); |
2600 | } | |
2601 | ||
428870ff BB |
2602 | static void |
2603 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2604 | { | |
2605 | nvpair_t *pair; | |
2606 | ||
2607 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2608 | ||
2609 | pair = NULL; | |
2610 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2611 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2612 | continue; | |
2613 | ||
2614 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2615 | } | |
2616 | } | |
2617 | ||
2618 | static int | |
13fe0198 | 2619 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2620 | nvlist_t *skipped) |
2621 | { | |
2622 | int err = 0; | |
2623 | nvlist_t *cleared_props = NULL; | |
2624 | props_skip(props, skipped, &cleared_props); | |
2625 | if (!nvlist_empty(cleared_props)) { | |
2626 | /* | |
2627 | * Acts on local properties until the dataset has received | |
2628 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2629 | */ | |
2630 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2631 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2632 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2633 | } |
2634 | nvlist_free(cleared_props); | |
2635 | return (err); | |
2636 | } | |
2637 | ||
34dc7c2f BB |
2638 | /* |
2639 | * inputs: | |
2640 | * zc_name name of filesystem | |
9babb374 | 2641 | * zc_value name of property to set |
34dc7c2f | 2642 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2643 | * zc_cookie received properties flag |
34dc7c2f | 2644 | * |
428870ff BB |
2645 | * outputs: |
2646 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2647 | */ |
2648 | static int | |
2649 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2650 | { | |
2651 | nvlist_t *nvl; | |
428870ff BB |
2652 | boolean_t received = zc->zc_cookie; |
2653 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2654 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2655 | nvlist_t *errors; |
34dc7c2f BB |
2656 | int error; |
2657 | ||
2658 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2659 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2660 | return (error); |
2661 | ||
428870ff | 2662 | if (received) { |
b128c09f | 2663 | nvlist_t *origprops; |
b128c09f | 2664 | |
13fe0198 MA |
2665 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2666 | (void) clear_received_props(zc->zc_name, | |
2667 | origprops, nvl); | |
2668 | nvlist_free(origprops); | |
428870ff | 2669 | } |
13fe0198 MA |
2670 | |
2671 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2672 | } |
2673 | ||
6f1ffb06 | 2674 | errors = fnvlist_alloc(); |
13fe0198 MA |
2675 | if (error == 0) |
2676 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2677 | |
b8864a23 | 2678 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2679 | (void) put_nvlist(zc, errors); |
2680 | } | |
2681 | ||
2682 | nvlist_free(errors); | |
34dc7c2f BB |
2683 | nvlist_free(nvl); |
2684 | return (error); | |
2685 | } | |
2686 | ||
2687 | /* | |
2688 | * inputs: | |
2689 | * zc_name name of filesystem | |
2690 | * zc_value name of property to inherit | |
428870ff | 2691 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2692 | * |
2693 | * outputs: none | |
2694 | */ | |
2695 | static int | |
2696 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2697 | { | |
428870ff BB |
2698 | const char *propname = zc->zc_value; |
2699 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2700 | boolean_t received = zc->zc_cookie; | |
2701 | zprop_source_t source = (received | |
2702 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2703 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2704 | ||
2705 | if (received) { | |
2706 | nvlist_t *dummy; | |
2707 | nvpair_t *pair; | |
2708 | zprop_type_t type; | |
2709 | int err; | |
2710 | ||
2711 | /* | |
2712 | * zfs_prop_set_special() expects properties in the form of an | |
2713 | * nvpair with type info. | |
2714 | */ | |
2715 | if (prop == ZPROP_INVAL) { | |
2716 | if (!zfs_prop_user(propname)) | |
2717 | return (EINVAL); | |
2718 | ||
2719 | type = PROP_TYPE_STRING; | |
2720 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2721 | prop == ZFS_PROP_VERSION) { | |
2722 | return (EINVAL); | |
2723 | } else { | |
2724 | type = zfs_prop_get_type(prop); | |
2725 | } | |
2726 | ||
2727 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2728 | ||
2729 | switch (type) { | |
2730 | case PROP_TYPE_STRING: | |
2731 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2732 | break; | |
2733 | case PROP_TYPE_NUMBER: | |
2734 | case PROP_TYPE_INDEX: | |
2735 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2736 | break; | |
2737 | default: | |
2738 | nvlist_free(dummy); | |
2739 | return (EINVAL); | |
2740 | } | |
2741 | ||
2742 | pair = nvlist_next_nvpair(dummy, NULL); | |
2743 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2744 | nvlist_free(dummy); | |
2745 | if (err != -1) | |
2746 | return (err); /* special property already handled */ | |
2747 | } else { | |
2748 | /* | |
2749 | * Only check this in the non-received case. We want to allow | |
2750 | * 'inherit -S' to revert non-inheritable properties like quota | |
2751 | * and reservation to the received or default values even though | |
2752 | * they are not considered inheritable. | |
2753 | */ | |
2754 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2755 | return (EINVAL); | |
2756 | } | |
2757 | ||
6f1ffb06 | 2758 | /* property name has been validated by zfs_secpolicy_inherit_prop() */ |
13fe0198 | 2759 | return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); |
34dc7c2f BB |
2760 | } |
2761 | ||
2762 | static int | |
2763 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2764 | { | |
2765 | nvlist_t *props; | |
2766 | spa_t *spa; | |
2767 | int error; | |
428870ff | 2768 | nvpair_t *pair; |
34dc7c2f | 2769 | |
c65aa5b2 BB |
2770 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2771 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2772 | return (error); |
2773 | ||
d164b209 BB |
2774 | /* |
2775 | * If the only property is the configfile, then just do a spa_lookup() | |
2776 | * to handle the faulted case. | |
2777 | */ | |
428870ff BB |
2778 | pair = nvlist_next_nvpair(props, NULL); |
2779 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2780 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2781 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2782 | mutex_enter(&spa_namespace_lock); |
2783 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2784 | spa_configfile_set(spa, props, B_FALSE); | |
2785 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2786 | } | |
2787 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2788 | if (spa != NULL) { |
2789 | nvlist_free(props); | |
d164b209 | 2790 | return (0); |
428870ff | 2791 | } |
d164b209 BB |
2792 | } |
2793 | ||
34dc7c2f BB |
2794 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2795 | nvlist_free(props); | |
2796 | return (error); | |
2797 | } | |
2798 | ||
2799 | error = spa_prop_set(spa, props); | |
2800 | ||
2801 | nvlist_free(props); | |
2802 | spa_close(spa, FTAG); | |
2803 | ||
2804 | return (error); | |
2805 | } | |
2806 | ||
2807 | static int | |
2808 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2809 | { | |
2810 | spa_t *spa; | |
2811 | int error; | |
2812 | nvlist_t *nvp = NULL; | |
2813 | ||
d164b209 BB |
2814 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2815 | /* | |
2816 | * If the pool is faulted, there may be properties we can still | |
2817 | * get (such as altroot and cachefile), so attempt to get them | |
2818 | * anyway. | |
2819 | */ | |
2820 | mutex_enter(&spa_namespace_lock); | |
2821 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2822 | error = spa_prop_get(spa, &nvp); | |
2823 | mutex_exit(&spa_namespace_lock); | |
2824 | } else { | |
2825 | error = spa_prop_get(spa, &nvp); | |
2826 | spa_close(spa, FTAG); | |
2827 | } | |
34dc7c2f | 2828 | |
b8864a23 | 2829 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2830 | error = put_nvlist(zc, nvp); |
2831 | else | |
2832 | error = EFAULT; | |
2833 | ||
d164b209 | 2834 | nvlist_free(nvp); |
34dc7c2f BB |
2835 | return (error); |
2836 | } | |
2837 | ||
60101509 BB |
2838 | /* |
2839 | * inputs: | |
2840 | * zc_name name of volume | |
2841 | * | |
2842 | * outputs: none | |
2843 | */ | |
2844 | static int | |
2845 | zfs_ioc_create_minor(zfs_cmd_t *zc) | |
2846 | { | |
2847 | return (zvol_create_minor(zc->zc_name)); | |
2848 | } | |
2849 | ||
2850 | /* | |
2851 | * inputs: | |
2852 | * zc_name name of volume | |
2853 | * | |
2854 | * outputs: none | |
2855 | */ | |
2856 | static int | |
2857 | zfs_ioc_remove_minor(zfs_cmd_t *zc) | |
2858 | { | |
2859 | return (zvol_remove_minor(zc->zc_name)); | |
2860 | } | |
2861 | ||
34dc7c2f BB |
2862 | /* |
2863 | * inputs: | |
2864 | * zc_name name of filesystem | |
2865 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2866 | * zc_perm_action allow/unallow flag | |
2867 | * | |
2868 | * outputs: none | |
2869 | */ | |
2870 | static int | |
2871 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2872 | { | |
2873 | int error; | |
2874 | nvlist_t *fsaclnv = NULL; | |
2875 | ||
2876 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2877 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2878 | return (error); |
2879 | ||
2880 | /* | |
2881 | * Verify nvlist is constructed correctly | |
2882 | */ | |
2883 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2884 | nvlist_free(fsaclnv); | |
2885 | return (EINVAL); | |
2886 | } | |
2887 | ||
2888 | /* | |
2889 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2890 | * that user is allowed to hand out each permission in | |
2891 | * the nvlist(s) | |
2892 | */ | |
2893 | ||
2894 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 2895 | if (error != 0) { |
34dc7c2f BB |
2896 | if (zc->zc_perm_action == B_FALSE) { |
2897 | error = dsl_deleg_can_allow(zc->zc_name, | |
2898 | fsaclnv, CRED()); | |
2899 | } else { | |
2900 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2901 | fsaclnv, CRED()); | |
2902 | } | |
2903 | } | |
2904 | ||
2905 | if (error == 0) | |
2906 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2907 | ||
2908 | nvlist_free(fsaclnv); | |
2909 | return (error); | |
2910 | } | |
2911 | ||
2912 | /* | |
2913 | * inputs: | |
2914 | * zc_name name of filesystem | |
2915 | * | |
2916 | * outputs: | |
2917 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2918 | */ | |
2919 | static int | |
2920 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2921 | { | |
2922 | nvlist_t *nvp; | |
2923 | int error; | |
2924 | ||
2925 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2926 | error = put_nvlist(zc, nvp); | |
2927 | nvlist_free(nvp); | |
2928 | } | |
2929 | ||
2930 | return (error); | |
2931 | } | |
2932 | ||
34dc7c2f BB |
2933 | /* ARGSUSED */ |
2934 | static void | |
2935 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2936 | { | |
2937 | zfs_creat_t *zct = arg; | |
2938 | ||
2939 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2940 | } | |
2941 | ||
2942 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2943 | ||
2944 | /* | |
2945 | * inputs: | |
b128c09f BB |
2946 | * createprops list of properties requested by creator |
2947 | * default_zplver zpl version to use if unspecified in createprops | |
2948 | * fuids_ok fuids allowed in this version of the spa? | |
2949 | * os parent objset pointer (NULL if root fs) | |
34dc7c2f BB |
2950 | * |
2951 | * outputs: | |
2952 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2953 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2954 | * |
2955 | * Determine the settings for utf8only, normalization and | |
2956 | * casesensitivity. Specific values may have been requested by the | |
2957 | * creator and/or we can inherit values from the parent dataset. If | |
2958 | * the file system is of too early a vintage, a creator can not | |
2959 | * request settings for these properties, even if the requested | |
2960 | * setting is the default value. We don't actually want to create dsl | |
2961 | * properties for these, so remove them from the source nvlist after | |
2962 | * processing. | |
2963 | */ | |
2964 | static int | |
9babb374 | 2965 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2966 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2967 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2968 | { |
34dc7c2f BB |
2969 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2970 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2971 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2972 | int error; |
34dc7c2f BB |
2973 | |
2974 | ASSERT(zplprops != NULL); | |
2975 | ||
34dc7c2f BB |
2976 | /* |
2977 | * Pull out creator prop choices, if any. | |
2978 | */ | |
2979 | if (createprops) { | |
b128c09f BB |
2980 | (void) nvlist_lookup_uint64(createprops, |
2981 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2982 | (void) nvlist_lookup_uint64(createprops, |
2983 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2984 | (void) nvlist_remove_all(createprops, | |
2985 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2986 | (void) nvlist_lookup_uint64(createprops, | |
2987 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2988 | (void) nvlist_remove_all(createprops, | |
2989 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2990 | (void) nvlist_lookup_uint64(createprops, | |
2991 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2992 | (void) nvlist_remove_all(createprops, | |
2993 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2994 | } | |
2995 | ||
2996 | /* | |
b128c09f BB |
2997 | * If the zpl version requested is whacky or the file system |
2998 | * or pool is version is too "young" to support normalization | |
2999 | * and the creator tried to set a value for one of the props, | |
3000 | * error out. | |
34dc7c2f | 3001 | */ |
b128c09f BB |
3002 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3003 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3004 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3005 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3006 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3007 | sense != ZFS_PROP_UNDEFINED))) |
34dc7c2f BB |
3008 | return (ENOTSUP); |
3009 | ||
3010 | /* | |
3011 | * Put the version in the zplprops | |
3012 | */ | |
3013 | VERIFY(nvlist_add_uint64(zplprops, | |
3014 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3015 | ||
b129c659 MM |
3016 | if (norm == ZFS_PROP_UNDEFINED && |
3017 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3018 | return (error); | |
34dc7c2f BB |
3019 | VERIFY(nvlist_add_uint64(zplprops, |
3020 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3021 | ||
3022 | /* | |
3023 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3024 | */ | |
3025 | if (norm) | |
3026 | u8 = 1; | |
b129c659 MM |
3027 | if (u8 == ZFS_PROP_UNDEFINED && |
3028 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3029 | return (error); | |
34dc7c2f BB |
3030 | VERIFY(nvlist_add_uint64(zplprops, |
3031 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3032 | ||
b129c659 MM |
3033 | if (sense == ZFS_PROP_UNDEFINED && |
3034 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3035 | return (error); | |
34dc7c2f BB |
3036 | VERIFY(nvlist_add_uint64(zplprops, |
3037 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3038 | ||
3039 | if (is_ci) | |
3040 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3041 | ||
34dc7c2f BB |
3042 | return (0); |
3043 | } | |
3044 | ||
b128c09f BB |
3045 | static int |
3046 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3047 | nvlist_t *zplprops, boolean_t *is_ci) | |
3048 | { | |
428870ff | 3049 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3050 | uint64_t zplver = ZPL_VERSION; |
3051 | objset_t *os = NULL; | |
3052 | char parentname[MAXNAMELEN]; | |
3053 | char *cp; | |
428870ff BB |
3054 | spa_t *spa; |
3055 | uint64_t spa_vers; | |
b128c09f BB |
3056 | int error; |
3057 | ||
3058 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3059 | cp = strrchr(parentname, '/'); | |
3060 | ASSERT(cp != NULL); | |
3061 | cp[0] = '\0'; | |
3062 | ||
428870ff BB |
3063 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3064 | return (error); | |
3065 | ||
3066 | spa_vers = spa_version(spa); | |
3067 | spa_close(spa, FTAG); | |
3068 | ||
3069 | zplver = zfs_zpl_version_map(spa_vers); | |
3070 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3071 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3072 | |
3073 | /* | |
3074 | * Open parent object set so we can inherit zplprop values. | |
3075 | */ | |
428870ff | 3076 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3077 | return (error); |
3078 | ||
428870ff | 3079 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3080 | zplprops, is_ci); |
428870ff | 3081 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3082 | return (error); |
3083 | } | |
3084 | ||
3085 | static int | |
3086 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3087 | nvlist_t *zplprops, boolean_t *is_ci) | |
3088 | { | |
428870ff BB |
3089 | boolean_t fuids_ok; |
3090 | boolean_t sa_ok; | |
b128c09f BB |
3091 | uint64_t zplver = ZPL_VERSION; |
3092 | int error; | |
3093 | ||
428870ff BB |
3094 | zplver = zfs_zpl_version_map(spa_vers); |
3095 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3096 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3097 | |
428870ff BB |
3098 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3099 | createprops, zplprops, is_ci); | |
b128c09f BB |
3100 | return (error); |
3101 | } | |
3102 | ||
34dc7c2f | 3103 | /* |
6f1ffb06 MA |
3104 | * innvl: { |
3105 | * "type" -> dmu_objset_type_t (int32) | |
3106 | * (optional) "props" -> { prop -> value } | |
3107 | * } | |
34dc7c2f | 3108 | * |
6f1ffb06 | 3109 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3110 | */ |
3111 | static int | |
6f1ffb06 | 3112 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3113 | { |
34dc7c2f | 3114 | int error = 0; |
6f1ffb06 | 3115 | zfs_creat_t zct = { 0 }; |
34dc7c2f BB |
3116 | nvlist_t *nvprops = NULL; |
3117 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
6f1ffb06 MA |
3118 | int32_t type32; |
3119 | dmu_objset_type_t type; | |
3120 | boolean_t is_insensitive = B_FALSE; | |
34dc7c2f | 3121 | |
6f1ffb06 MA |
3122 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
3123 | return (EINVAL); | |
3124 | type = type32; | |
3125 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
34dc7c2f | 3126 | |
6f1ffb06 | 3127 | switch (type) { |
34dc7c2f BB |
3128 | case DMU_OST_ZFS: |
3129 | cbfunc = zfs_create_cb; | |
3130 | break; | |
3131 | ||
3132 | case DMU_OST_ZVOL: | |
3133 | cbfunc = zvol_create_cb; | |
3134 | break; | |
3135 | ||
3136 | default: | |
3137 | cbfunc = NULL; | |
3138 | break; | |
3139 | } | |
6f1ffb06 MA |
3140 | if (strchr(fsname, '@') || |
3141 | strchr(fsname, '%')) | |
34dc7c2f BB |
3142 | return (EINVAL); |
3143 | ||
34dc7c2f BB |
3144 | zct.zct_props = nvprops; |
3145 | ||
6f1ffb06 MA |
3146 | if (cbfunc == NULL) |
3147 | return (EINVAL); | |
34dc7c2f | 3148 | |
6f1ffb06 MA |
3149 | if (type == DMU_OST_ZVOL) { |
3150 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3151 | |
6f1ffb06 MA |
3152 | if (nvprops == NULL) |
3153 | return (EINVAL); | |
3154 | if (nvlist_lookup_uint64(nvprops, | |
3155 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
34dc7c2f | 3156 | return (EINVAL); |
34dc7c2f | 3157 | |
6f1ffb06 MA |
3158 | if ((error = nvlist_lookup_uint64(nvprops, |
3159 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3160 | &volblocksize)) != 0 && error != ENOENT) | |
3161 | return (EINVAL); | |
34dc7c2f | 3162 | |
6f1ffb06 MA |
3163 | if (error != 0) |
3164 | volblocksize = zfs_prop_default_numeric( | |
3165 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3166 | |
6f1ffb06 MA |
3167 | if ((error = zvol_check_volblocksize( |
3168 | volblocksize)) != 0 || | |
3169 | (error = zvol_check_volsize(volsize, | |
3170 | volblocksize)) != 0) | |
3171 | return (error); | |
3172 | } else if (type == DMU_OST_ZFS) { | |
3173 | int error; | |
34dc7c2f | 3174 | |
6f1ffb06 MA |
3175 | /* |
3176 | * We have to have normalization and | |
3177 | * case-folding flags correct when we do the | |
3178 | * file system creation, so go figure them out | |
3179 | * now. | |
3180 | */ | |
3181 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3182 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3183 | error = zfs_fill_zplprops(fsname, nvprops, | |
3184 | zct.zct_zplprops, &is_insensitive); | |
3185 | if (error != 0) { | |
3186 | nvlist_free(zct.zct_zplprops); | |
3187 | return (error); | |
34dc7c2f | 3188 | } |
34dc7c2f BB |
3189 | } |
3190 | ||
6f1ffb06 MA |
3191 | error = dmu_objset_create(fsname, type, |
3192 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); | |
3193 | nvlist_free(zct.zct_zplprops); | |
3194 | ||
34dc7c2f BB |
3195 | /* |
3196 | * It would be nice to do this atomically. | |
3197 | */ | |
3198 | if (error == 0) { | |
6f1ffb06 MA |
3199 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3200 | nvprops, outnvl); | |
428870ff | 3201 | if (error != 0) |
13fe0198 | 3202 | (void) dsl_destroy_head(fsname); |
34dc7c2f | 3203 | } |
34dc7c2f BB |
3204 | return (error); |
3205 | } | |
3206 | ||
3207 | /* | |
6f1ffb06 MA |
3208 | * innvl: { |
3209 | * "origin" -> name of origin snapshot | |
3210 | * (optional) "props" -> { prop -> value } | |
3211 | * } | |
34dc7c2f | 3212 | * |
428870ff | 3213 | * outputs: |
6f1ffb06 | 3214 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3215 | */ |
3216 | static int | |
6f1ffb06 | 3217 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3218 | { |
6f1ffb06 | 3219 | int error = 0; |
b128c09f | 3220 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3221 | char *origin_name; |
b128c09f | 3222 | |
6f1ffb06 | 3223 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
34dc7c2f | 3224 | return (EINVAL); |
6f1ffb06 | 3225 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3226 | |
6f1ffb06 MA |
3227 | if (strchr(fsname, '@') || |
3228 | strchr(fsname, '%')) | |
3229 | return (EINVAL); | |
3230 | ||
3231 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
3232 | return (EINVAL); | |
13fe0198 MA |
3233 | error = dmu_objset_clone(fsname, origin_name); |
3234 | if (error != 0) | |
6f1ffb06 | 3235 | return (error); |
b128c09f | 3236 | |
6f1ffb06 MA |
3237 | /* |
3238 | * It would be nice to do this atomically. | |
3239 | */ | |
3240 | if (error == 0) { | |
3241 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3242 | nvprops, outnvl); | |
3243 | if (error != 0) | |
13fe0198 | 3244 | (void) dsl_destroy_head(fsname); |
b128c09f | 3245 | } |
6f1ffb06 MA |
3246 | return (error); |
3247 | } | |
9babb374 | 3248 | |
6f1ffb06 MA |
3249 | /* |
3250 | * innvl: { | |
3251 | * "snaps" -> { snapshot1, snapshot2 } | |
3252 | * (optional) "props" -> { prop -> value (string) } | |
3253 | * } | |
3254 | * | |
3255 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3256 | */ |
3257 | static int | |
3258 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3259 | { | |
3260 | nvlist_t *snaps; | |
3261 | nvlist_t *props = NULL; | |
3262 | int error, poollen; | |
3263 | nvpair_t *pair, *pair2; | |
9babb374 | 3264 | |
6f1ffb06 MA |
3265 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3266 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3267 | return (error); | |
3268 | ||
3269 | if (!nvlist_empty(props) && | |
3270 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
3271 | return (ENOTSUP); | |
3272 | ||
3273 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
3274 | return (EINVAL); | |
3275 | poollen = strlen(poolname); | |
3276 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3277 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3278 | const char *name = nvpair_name(pair); | |
3279 | const char *cp = strchr(name, '@'); | |
3280 | ||
3281 | /* | |
3282 | * The snap name must contain an @, and the part after it must | |
3283 | * contain only valid characters. | |
3284 | */ | |
3285 | if (cp == NULL || snapshot_namecheck(cp + 1, NULL, NULL) != 0) | |
3286 | return (EINVAL); | |
3287 | ||
3288 | /* | |
3289 | * The snap must be in the specified pool. | |
3290 | */ | |
3291 | if (strncmp(name, poolname, poollen) != 0 || | |
3292 | (name[poollen] != '/' && name[poollen] != '@')) | |
3293 | return (EXDEV); | |
3294 | ||
3295 | /* This must be the only snap of this fs. */ | |
3296 | for (pair2 = nvlist_next_nvpair(snaps, pair); | |
3297 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { | |
3298 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3299 | == 0) { | |
3300 | return (EXDEV); | |
3301 | } | |
3302 | } | |
3303 | } | |
3304 | ||
13fe0198 | 3305 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
6f1ffb06 MA |
3306 | return (error); |
3307 | } | |
3308 | ||
3309 | /* | |
3310 | * innvl: "message" -> string | |
3311 | */ | |
3312 | /* ARGSUSED */ | |
3313 | static int | |
3314 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3315 | { | |
3316 | char *message; | |
3317 | spa_t *spa; | |
3318 | int error; | |
3319 | char *poolname; | |
3320 | ||
3321 | /* | |
3322 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3323 | * which was set at the end of the last successful ioctl that allows | |
3324 | * logging. The secpolicy func already checked that it is set. | |
3325 | * Only one log ioctl is allowed after each successful ioctl, so | |
3326 | * we clear the TSD here. | |
3327 | */ | |
3328 | poolname = tsd_get(zfs_allow_log_key); | |
3329 | (void) tsd_set(zfs_allow_log_key, NULL); | |
3330 | error = spa_open(poolname, &spa, FTAG); | |
3331 | strfree(poolname); | |
3332 | if (error != 0) | |
3333 | return (error); | |
3334 | ||
3335 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3336 | spa_close(spa, FTAG); | |
3337 | return (EINVAL); | |
3338 | } | |
3339 | ||
3340 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3341 | spa_close(spa, FTAG); | |
3342 | return (ENOTSUP); | |
3343 | } | |
3344 | ||
3345 | error = spa_history_log(spa, message); | |
3346 | spa_close(spa, FTAG); | |
b128c09f | 3347 | return (error); |
34dc7c2f BB |
3348 | } |
3349 | ||
ebe7e575 | 3350 | /* |
13fe0198 MA |
3351 | * The dp_config_rwlock must not be held when calling this, because the |
3352 | * unmount may need to write out data. | |
3353 | * | |
3354 | * This function is best-effort. Callers must deal gracefully if it | |
3355 | * remains mounted (or is remounted after this call). | |
ebe7e575 | 3356 | */ |
13fe0198 MA |
3357 | void |
3358 | zfs_unmount_snap(const char *snapname) | |
34dc7c2f | 3359 | { |
ebe7e575 BB |
3360 | zfs_sb_t *zsb = NULL; |
3361 | char *dsname; | |
ebe7e575 BB |
3362 | char *fullname; |
3363 | char *ptr; | |
34dc7c2f | 3364 | |
13fe0198 MA |
3365 | if ((ptr = strchr(snapname, '@')) == NULL) |
3366 | return; | |
34dc7c2f | 3367 | |
13fe0198 MA |
3368 | dsname = strdup(snapname); |
3369 | dsname[ptr - snapname] = '\0'; | |
6f1ffb06 | 3370 | snapname = strdup(ptr + 1); |
ebe7e575 | 3371 | fullname = kmem_asprintf("%s@%s", dsname, snapname); |
13fe0198 MA |
3372 | if (zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE) == 0) { |
3373 | ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb->z_os))); | |
3374 | (void) zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE); | |
ebe7e575 | 3375 | zfs_sb_rele(zsb, FTAG); |
34dc7c2f | 3376 | } |
ebe7e575 BB |
3377 | |
3378 | strfree(dsname); | |
ebe7e575 BB |
3379 | strfree(fullname); |
3380 | ||
13fe0198 MA |
3381 | return; |
3382 | } | |
3383 | ||
3384 | /* ARGSUSED */ | |
3385 | static int | |
3386 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3387 | { | |
3388 | zfs_unmount_snap(snapname); | |
3389 | return (0); | |
3390 | } | |
3391 | ||
3392 | /* | |
3393 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3394 | * in which case it must be unmounted. This routine will do that unmount | |
3395 | * if necessary. | |
3396 | */ | |
3397 | void | |
3398 | zfs_destroy_unmount_origin(const char *fsname) | |
3399 | { | |
3400 | int error; | |
3401 | objset_t *os; | |
3402 | dsl_dataset_t *ds; | |
3403 | ||
3404 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3405 | if (error != 0) | |
3406 | return; | |
3407 | ds = dmu_objset_ds(os); | |
3408 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
3409 | char originname[MAXNAMELEN]; | |
3410 | dsl_dataset_name(ds->ds_prev, originname); | |
3411 | dmu_objset_rele(os, FTAG); | |
3412 | zfs_unmount_snap(originname); | |
3413 | } else { | |
3414 | dmu_objset_rele(os, FTAG); | |
3415 | } | |
34dc7c2f BB |
3416 | } |
3417 | ||
3418 | /* | |
6f1ffb06 MA |
3419 | * innvl: { |
3420 | * "snaps" -> { snapshot1, snapshot2 } | |
3421 | * (optional boolean) "defer" | |
3422 | * } | |
34dc7c2f | 3423 | * |
6f1ffb06 | 3424 | * outnvl: snapshot -> error code (int32) |
34dc7c2f BB |
3425 | */ |
3426 | static int | |
6f1ffb06 | 3427 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3428 | { |
6f1ffb06 MA |
3429 | int poollen; |
3430 | nvlist_t *snaps; | |
330d06f9 | 3431 | nvpair_t *pair; |
6f1ffb06 | 3432 | boolean_t defer; |
34dc7c2f | 3433 | |
6f1ffb06 MA |
3434 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
3435 | return (EINVAL); | |
3436 | defer = nvlist_exists(innvl, "defer"); | |
330d06f9 | 3437 | |
6f1ffb06 MA |
3438 | poollen = strlen(poolname); |
3439 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3440 | pair = nvlist_next_nvpair(snaps, pair)) { | |
330d06f9 | 3441 | const char *name = nvpair_name(pair); |
6f1ffb06 | 3442 | |
330d06f9 | 3443 | /* |
6f1ffb06 | 3444 | * The snap must be in the specified pool. |
330d06f9 | 3445 | */ |
6f1ffb06 MA |
3446 | if (strncmp(name, poolname, poollen) != 0 || |
3447 | (name[poollen] != '/' && name[poollen] != '@')) | |
3448 | return (EXDEV); | |
330d06f9 | 3449 | |
13fe0198 | 3450 | zfs_unmount_snap(name); |
4ca9a436 | 3451 | (void) zvol_remove_minor(name); |
330d06f9 MA |
3452 | } |
3453 | ||
13fe0198 | 3454 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); |
34dc7c2f BB |
3455 | } |
3456 | ||
3457 | /* | |
3458 | * inputs: | |
3459 | * zc_name name of dataset to destroy | |
3460 | * zc_objset_type type of objset | |
45d1cae3 | 3461 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3462 | * |
3463 | * outputs: none | |
3464 | */ | |
3465 | static int | |
3466 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3467 | { | |
428870ff | 3468 | int err; |
13fe0198 MA |
3469 | if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) |
3470 | zfs_unmount_snap(zc->zc_name); | |
34dc7c2f | 3471 | |
13fe0198 MA |
3472 | if (strchr(zc->zc_name, '@')) |
3473 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); | |
3474 | else | |
3475 | err = dsl_destroy_head(zc->zc_name); | |
428870ff BB |
3476 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) |
3477 | (void) zvol_remove_minor(zc->zc_name); | |
3478 | return (err); | |
34dc7c2f BB |
3479 | } |
3480 | ||
3481 | /* | |
3482 | * inputs: | |
3483 | * zc_name name of dataset to rollback (to most recent snapshot) | |
3484 | * | |
3485 | * outputs: none | |
3486 | */ | |
3487 | static int | |
3488 | zfs_ioc_rollback(zfs_cmd_t *zc) | |
3489 | { | |
3558fd73 | 3490 | zfs_sb_t *zsb; |
13fe0198 | 3491 | int error; |
34dc7c2f | 3492 | |
3558fd73 BB |
3493 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
3494 | error = zfs_suspend_fs(zsb); | |
34dc7c2f BB |
3495 | if (error == 0) { |
3496 | int resume_err; | |
3497 | ||
13fe0198 | 3498 | error = dsl_dataset_rollback(zc->zc_name); |
3558fd73 | 3499 | resume_err = zfs_resume_fs(zsb, zc->zc_name); |
34dc7c2f | 3500 | error = error ? error : resume_err; |
34dc7c2f | 3501 | } |
2cf7f52b | 3502 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3503 | } else { |
13fe0198 | 3504 | error = dsl_dataset_rollback(zc->zc_name); |
34dc7c2f | 3505 | } |
13fe0198 MA |
3506 | return (error); |
3507 | } | |
34dc7c2f | 3508 | |
13fe0198 MA |
3509 | static int |
3510 | recursive_unmount(const char *fsname, void *arg) | |
3511 | { | |
3512 | const char *snapname = arg; | |
3513 | char *fullname; | |
428870ff | 3514 | |
13fe0198 MA |
3515 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
3516 | zfs_unmount_snap(fullname); | |
3517 | strfree(fullname); | |
3518 | return (0); | |
34dc7c2f BB |
3519 | } |
3520 | ||
3521 | /* | |
3522 | * inputs: | |
3523 | * zc_name old name of dataset | |
3524 | * zc_value new name of dataset | |
3525 | * zc_cookie recursive flag (only valid for snapshots) | |
3526 | * | |
3527 | * outputs: none | |
3528 | */ | |
3529 | static int | |
3530 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3531 | { | |
3532 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3533 | char *at; |
95c73795 | 3534 | int err; |
34dc7c2f BB |
3535 | |
3536 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3537 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3538 | strchr(zc->zc_value, '%')) | |
3539 | return (EINVAL); | |
3540 | ||
13fe0198 MA |
3541 | at = strchr(zc->zc_name, '@'); |
3542 | if (at != NULL) { | |
3543 | /* snaps must be in same fs */ | |
3544 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) | |
3545 | return (EXDEV); | |
3546 | *at = '\0'; | |
3547 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
3548 | int error = dmu_objset_find(zc->zc_name, | |
3549 | recursive_unmount, at + 1, | |
3550 | recursive ? DS_FIND_CHILDREN : 0); | |
3551 | if (error != 0) | |
3552 | return (error); | |
3553 | } | |
3554 | return (dsl_dataset_rename_snapshot(zc->zc_name, | |
3555 | at + 1, strchr(zc->zc_value, '@') + 1, recursive)); | |
3556 | } else { | |
3557 | err = dsl_dir_rename(zc->zc_name, zc->zc_value); | |
3558 | if (!err && zc->zc_objset_type == DMU_OST_ZVOL) { | |
3559 | (void) zvol_remove_minor(zc->zc_name); | |
3560 | (void) zvol_create_minor(zc->zc_value); | |
3561 | } | |
3562 | return (err); | |
95c73795 | 3563 | } |
34dc7c2f BB |
3564 | } |
3565 | ||
428870ff BB |
3566 | static int |
3567 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3568 | { | |
3569 | const char *propname = nvpair_name(pair); | |
3570 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3571 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3572 | uint64_t intval; | |
3573 | int err; | |
3574 | ||
3575 | if (prop == ZPROP_INVAL) { | |
3576 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3577 | if ((err = zfs_secpolicy_write_perms(dsname, |
3578 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3579 | return (err); |
3580 | return (0); | |
3581 | } | |
3582 | ||
3583 | if (!issnap && zfs_prop_userquota(propname)) { | |
3584 | const char *perm = NULL; | |
3585 | const char *uq_prefix = | |
3586 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3587 | const char *gq_prefix = | |
3588 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3589 | ||
3590 | if (strncmp(propname, uq_prefix, | |
3591 | strlen(uq_prefix)) == 0) { | |
3592 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3593 | } else if (strncmp(propname, gq_prefix, | |
3594 | strlen(gq_prefix)) == 0) { | |
3595 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3596 | } else { | |
3597 | /* USERUSED and GROUPUSED are read-only */ | |
3598 | return (EINVAL); | |
3599 | } | |
3600 | ||
c65aa5b2 | 3601 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3602 | return (err); |
3603 | return (0); | |
3604 | } | |
3605 | ||
3606 | return (EINVAL); | |
3607 | } | |
3608 | ||
3609 | if (issnap) | |
3610 | return (EINVAL); | |
3611 | ||
3612 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3613 | /* | |
3614 | * dsl_prop_get_all_impl() returns properties in this | |
3615 | * format. | |
3616 | */ | |
3617 | nvlist_t *attrs; | |
3618 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3619 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3620 | &pair) == 0); | |
3621 | } | |
3622 | ||
3623 | /* | |
3624 | * Check that this value is valid for this pool version | |
3625 | */ | |
3626 | switch (prop) { | |
3627 | case ZFS_PROP_COMPRESSION: | |
3628 | /* | |
3629 | * If the user specified gzip compression, make sure | |
3630 | * the SPA supports it. We ignore any errors here since | |
3631 | * we'll catch them later. | |
3632 | */ | |
3633 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3634 | nvpair_value_uint64(pair, &intval) == 0) { | |
3635 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3636 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3637 | zfs_earlier_version(dsname, | |
3638 | SPA_VERSION_GZIP_COMPRESSION)) { | |
3639 | return (ENOTSUP); | |
3640 | } | |
3641 | ||
3642 | if (intval == ZIO_COMPRESS_ZLE && | |
3643 | zfs_earlier_version(dsname, | |
3644 | SPA_VERSION_ZLE_COMPRESSION)) | |
3645 | return (ENOTSUP); | |
3646 | ||
9759c60f ED |
3647 | if (intval == ZIO_COMPRESS_LZ4) { |
3648 | zfeature_info_t *feature = | |
3649 | &spa_feature_table[ | |
3650 | SPA_FEATURE_LZ4_COMPRESS]; | |
3651 | spa_t *spa; | |
3652 | ||
3653 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3654 | return (err); | |
3655 | ||
3656 | if (!spa_feature_is_enabled(spa, feature)) { | |
3657 | spa_close(spa, FTAG); | |
3658 | return (ENOTSUP); | |
3659 | } | |
3660 | spa_close(spa, FTAG); | |
3661 | } | |
3662 | ||
428870ff BB |
3663 | /* |
3664 | * If this is a bootable dataset then | |
3665 | * verify that the compression algorithm | |
3666 | * is supported for booting. We must return | |
3667 | * something other than ENOTSUP since it | |
3668 | * implies a downrev pool version. | |
3669 | */ | |
3670 | if (zfs_is_bootfs(dsname) && | |
3671 | !BOOTFS_COMPRESS_VALID(intval)) { | |
3672 | return (ERANGE); | |
3673 | } | |
3674 | } | |
3675 | break; | |
3676 | ||
3677 | case ZFS_PROP_COPIES: | |
3678 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
3679 | return (ENOTSUP); | |
3680 | break; | |
3681 | ||
3682 | case ZFS_PROP_DEDUP: | |
3683 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
3684 | return (ENOTSUP); | |
3685 | break; | |
3686 | ||
3687 | case ZFS_PROP_SHARESMB: | |
3688 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
3689 | return (ENOTSUP); | |
3690 | break; | |
3691 | ||
3692 | case ZFS_PROP_ACLINHERIT: | |
3693 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3694 | nvpair_value_uint64(pair, &intval) == 0) { | |
3695 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3696 | zfs_earlier_version(dsname, | |
3697 | SPA_VERSION_PASSTHROUGH_X)) | |
3698 | return (ENOTSUP); | |
3699 | } | |
3700 | break; | |
e75c13c3 BB |
3701 | default: |
3702 | break; | |
428870ff BB |
3703 | } |
3704 | ||
3705 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3706 | } | |
3707 | ||
9759c60f ED |
3708 | /* |
3709 | * Checks for a race condition to make sure we don't increment a feature flag | |
3710 | * multiple times. | |
3711 | */ | |
9759c60f | 3712 | static int |
13fe0198 | 3713 | zfs_prop_activate_feature_check(void *arg, dmu_tx_t *tx) |
9759c60f | 3714 | { |
13fe0198 MA |
3715 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; |
3716 | zfeature_info_t *feature = arg; | |
9759c60f ED |
3717 | |
3718 | if (!spa_feature_is_active(spa, feature)) | |
3719 | return (0); | |
3720 | else | |
3721 | return (EBUSY); | |
3722 | } | |
3723 | ||
3724 | /* | |
3725 | * The callback invoked on feature activation in the sync task caused by | |
3726 | * zfs_prop_activate_feature. | |
3727 | */ | |
3728 | static void | |
13fe0198 | 3729 | zfs_prop_activate_feature_sync(void *arg, dmu_tx_t *tx) |
9759c60f | 3730 | { |
13fe0198 MA |
3731 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; |
3732 | zfeature_info_t *feature = arg; | |
9759c60f ED |
3733 | |
3734 | spa_feature_incr(spa, feature, tx); | |
3735 | } | |
3736 | ||
13fe0198 MA |
3737 | /* |
3738 | * Activates a feature on a pool in response to a property setting. This | |
3739 | * creates a new sync task which modifies the pool to reflect the feature | |
3740 | * as being active. | |
3741 | */ | |
3742 | static int | |
3743 | zfs_prop_activate_feature(spa_t *spa, zfeature_info_t *feature) | |
3744 | { | |
3745 | int err; | |
3746 | ||
3747 | /* EBUSY here indicates that the feature is already active */ | |
3748 | err = dsl_sync_task(spa_name(spa), | |
3749 | zfs_prop_activate_feature_check, zfs_prop_activate_feature_sync, | |
3750 | feature, 2); | |
3751 | ||
3752 | if (err != 0 && err != EBUSY) | |
3753 | return (err); | |
3754 | else | |
3755 | return (0); | |
3756 | } | |
3757 | ||
428870ff BB |
3758 | /* |
3759 | * Removes properties from the given props list that fail permission checks | |
3760 | * needed to clear them and to restore them in case of a receive error. For each | |
3761 | * property, make sure we have both set and inherit permissions. | |
3762 | * | |
3763 | * Returns the first error encountered if any permission checks fail. If the | |
3764 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3765 | * of all the properties that failed a permission check along with the | |
3766 | * corresponding error numbers. The caller is responsible for freeing the | |
3767 | * returned errlist. | |
3768 | * | |
3769 | * If every property checks out successfully, zero is returned and the list | |
3770 | * pointed at by errlist is NULL. | |
3771 | */ | |
3772 | static int | |
3773 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3774 | { |
3775 | zfs_cmd_t *zc; | |
428870ff BB |
3776 | nvpair_t *pair, *next_pair; |
3777 | nvlist_t *errors; | |
3778 | int err, rv = 0; | |
b128c09f BB |
3779 | |
3780 | if (props == NULL) | |
428870ff BB |
3781 | return (0); |
3782 | ||
3783 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3784 | ||
d247f2a3 | 3785 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
b128c09f | 3786 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3787 | pair = nvlist_next_nvpair(props, NULL); |
3788 | while (pair != NULL) { | |
3789 | next_pair = nvlist_next_nvpair(props, pair); | |
3790 | ||
3791 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3792 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
6f1ffb06 | 3793 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
3794 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
3795 | VERIFY(nvlist_add_int32(errors, | |
3796 | zc->zc_value, err) == 0); | |
3797 | } | |
3798 | pair = next_pair; | |
b128c09f BB |
3799 | } |
3800 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3801 | |
3802 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3803 | nvlist_free(errors); | |
3804 | errors = NULL; | |
3805 | } else { | |
3806 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3807 | } | |
3808 | ||
3809 | if (errlist == NULL) | |
3810 | nvlist_free(errors); | |
3811 | else | |
3812 | *errlist = errors; | |
3813 | ||
3814 | return (rv); | |
3815 | } | |
3816 | ||
3817 | static boolean_t | |
3818 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3819 | { | |
3820 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3821 | /* dsl_prop_get_all_impl() format */ | |
3822 | nvlist_t *attrs; | |
3823 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3824 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3825 | &p1) == 0); | |
3826 | } | |
3827 | ||
3828 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3829 | nvlist_t *attrs; | |
3830 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3831 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3832 | &p2) == 0); | |
3833 | } | |
3834 | ||
3835 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3836 | return (B_FALSE); | |
3837 | ||
3838 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3839 | char *valstr1, *valstr2; | |
3840 | ||
3841 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3842 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3843 | return (strcmp(valstr1, valstr2) == 0); | |
3844 | } else { | |
3845 | uint64_t intval1, intval2; | |
3846 | ||
3847 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3848 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3849 | return (intval1 == intval2); | |
3850 | } | |
b128c09f BB |
3851 | } |
3852 | ||
428870ff BB |
3853 | /* |
3854 | * Remove properties from props if they are not going to change (as determined | |
3855 | * by comparison with origprops). Remove them from origprops as well, since we | |
3856 | * do not need to clear or restore properties that won't change. | |
3857 | */ | |
3858 | static void | |
3859 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3860 | { | |
3861 | nvpair_t *pair, *next_pair; | |
3862 | ||
3863 | if (origprops == NULL) | |
3864 | return; /* all props need to be received */ | |
3865 | ||
3866 | pair = nvlist_next_nvpair(props, NULL); | |
3867 | while (pair != NULL) { | |
3868 | const char *propname = nvpair_name(pair); | |
3869 | nvpair_t *match; | |
3870 | ||
3871 | next_pair = nvlist_next_nvpair(props, pair); | |
3872 | ||
3873 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3874 | &match) != 0) || !propval_equals(pair, match)) | |
3875 | goto next; /* need to set received value */ | |
3876 | ||
3877 | /* don't clear the existing received value */ | |
3878 | (void) nvlist_remove_nvpair(origprops, match); | |
3879 | /* don't bother receiving the property */ | |
3880 | (void) nvlist_remove_nvpair(props, pair); | |
3881 | next: | |
3882 | pair = next_pair; | |
3883 | } | |
3884 | } | |
3885 | ||
3886 | #ifdef DEBUG | |
3887 | static boolean_t zfs_ioc_recv_inject_err; | |
3888 | #endif | |
3889 | ||
34dc7c2f BB |
3890 | /* |
3891 | * inputs: | |
3892 | * zc_name name of containing filesystem | |
3893 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3894 | * zc_value name of snapshot to create | |
3895 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3896 | * zc_cookie file descriptor to recv from | |
3897 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3898 | * zc_guid force flag | |
572e2857 BB |
3899 | * zc_cleanup_fd cleanup-on-exit file descriptor |
3900 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
3901 | * |
3902 | * outputs: | |
3903 | * zc_cookie number of bytes read | |
428870ff BB |
3904 | * zc_nvlist_dst{_size} error for each unapplied received property |
3905 | * zc_obj zprop_errflags_t | |
572e2857 | 3906 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
3907 | */ |
3908 | static int | |
3909 | zfs_ioc_recv(zfs_cmd_t *zc) | |
3910 | { | |
3911 | file_t *fp; | |
34dc7c2f | 3912 | dmu_recv_cookie_t drc; |
34dc7c2f | 3913 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
3914 | int fd; |
3915 | int error = 0; | |
3916 | int props_error = 0; | |
3917 | nvlist_t *errors; | |
34dc7c2f | 3918 | offset_t off; |
428870ff BB |
3919 | nvlist_t *props = NULL; /* sent properties */ |
3920 | nvlist_t *origprops = NULL; /* existing properties */ | |
13fe0198 | 3921 | char *origin = NULL; |
34dc7c2f BB |
3922 | char *tosnap; |
3923 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 3924 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
3925 | |
3926 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3927 | strchr(zc->zc_value, '@') == NULL || | |
3928 | strchr(zc->zc_value, '%')) | |
3929 | return (EINVAL); | |
3930 | ||
3931 | (void) strcpy(tofs, zc->zc_value); | |
3932 | tosnap = strchr(tofs, '@'); | |
428870ff | 3933 | *tosnap++ = '\0'; |
34dc7c2f | 3934 | |
b8864a23 | 3935 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 3936 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3937 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
3938 | return (error); |
3939 | ||
3940 | fd = zc->zc_cookie; | |
3941 | fp = getf(fd); | |
3942 | if (fp == NULL) { | |
3943 | nvlist_free(props); | |
3944 | return (EBADF); | |
3945 | } | |
3946 | ||
428870ff BB |
3947 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
3948 | ||
13fe0198 MA |
3949 | if (zc->zc_string[0]) |
3950 | origin = zc->zc_string; | |
3951 | ||
3952 | error = dmu_recv_begin(tofs, tosnap, | |
3953 | &zc->zc_begin_record, force, origin, &drc); | |
3954 | if (error != 0) | |
3955 | goto out; | |
3956 | ||
3957 | /* | |
3958 | * Set properties before we receive the stream so that they are applied | |
3959 | * to the new data. Note that we must call dmu_recv_stream() if | |
3960 | * dmu_recv_begin() succeeds. | |
3961 | */ | |
3962 | if (props != NULL && !drc.drc_newfs) { | |
3963 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= | |
3964 | SPA_VERSION_RECVD_PROPS && | |
3965 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 3966 | first_recvd_props = B_TRUE; |
428870ff | 3967 | |
b128c09f | 3968 | /* |
428870ff BB |
3969 | * If new received properties are supplied, they are to |
3970 | * completely replace the existing received properties, so stash | |
3971 | * away the existing ones. | |
b128c09f | 3972 | */ |
13fe0198 | 3973 | if (dsl_prop_get_received(tofs, &origprops) == 0) { |
428870ff BB |
3974 | nvlist_t *errlist = NULL; |
3975 | /* | |
3976 | * Don't bother writing a property if its value won't | |
3977 | * change (and avoid the unnecessary security checks). | |
3978 | * | |
3979 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
3980 | * special case where we blow away all local properties | |
3981 | * regardless. | |
3982 | */ | |
3983 | if (!first_recvd_props) | |
3984 | props_reduce(props, origprops); | |
13fe0198 | 3985 | if (zfs_check_clearable(tofs, origprops, &errlist) != 0) |
428870ff BB |
3986 | (void) nvlist_merge(errors, errlist, 0); |
3987 | nvlist_free(errlist); | |
b128c09f | 3988 | |
13fe0198 MA |
3989 | if (clear_received_props(tofs, origprops, |
3990 | first_recvd_props ? NULL : props) != 0) | |
428870ff | 3991 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
13fe0198 | 3992 | } else { |
428870ff BB |
3993 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
3994 | } | |
13fe0198 MA |
3995 | } |
3996 | ||
3997 | if (props != NULL) { | |
3998 | props_error = dsl_prop_set_hasrecvd(tofs); | |
428870ff | 3999 | |
13fe0198 MA |
4000 | if (props_error == 0) { |
4001 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
4002 | props, errors); | |
4003 | } | |
428870ff BB |
4004 | } |
4005 | ||
6f1ffb06 MA |
4006 | if (zc->zc_nvlist_dst_size != 0 && |
4007 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4008 | put_nvlist(zc, errors) != 0)) { | |
b128c09f | 4009 | /* |
428870ff BB |
4010 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
4011 | * size or supplied an invalid address. | |
b128c09f | 4012 | */ |
428870ff | 4013 | props_error = EINVAL; |
34dc7c2f BB |
4014 | } |
4015 | ||
34dc7c2f | 4016 | off = fp->f_offset; |
572e2857 BB |
4017 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
4018 | &zc->zc_action_handle); | |
34dc7c2f | 4019 | |
45d1cae3 | 4020 | if (error == 0) { |
3558fd73 | 4021 | zfs_sb_t *zsb = NULL; |
b128c09f | 4022 | |
3558fd73 | 4023 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
4024 | /* online recv */ |
4025 | int end_err; | |
b128c09f | 4026 | |
3558fd73 | 4027 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
4028 | /* |
4029 | * If the suspend fails, then the recv_end will | |
4030 | * likely also fail, and clean up after itself. | |
4031 | */ | |
4032 | end_err = dmu_recv_end(&drc); | |
428870ff | 4033 | if (error == 0) |
3558fd73 | 4034 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 4035 | error = error ? error : end_err; |
2cf7f52b | 4036 | deactivate_super(zsb->z_sb); |
b128c09f | 4037 | } else { |
45d1cae3 | 4038 | error = dmu_recv_end(&drc); |
34dc7c2f | 4039 | } |
34dc7c2f BB |
4040 | } |
4041 | ||
4042 | zc->zc_cookie = off - fp->f_offset; | |
4043 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4044 | fp->f_offset = off; | |
4045 | ||
428870ff BB |
4046 | #ifdef DEBUG |
4047 | if (zfs_ioc_recv_inject_err) { | |
4048 | zfs_ioc_recv_inject_err = B_FALSE; | |
4049 | error = 1; | |
4050 | } | |
4051 | #endif | |
b128c09f BB |
4052 | /* |
4053 | * On error, restore the original props. | |
4054 | */ | |
13fe0198 MA |
4055 | if (error != 0 && props != NULL && !drc.drc_newfs) { |
4056 | if (clear_received_props(tofs, props, NULL) != 0) { | |
4057 | /* | |
4058 | * We failed to clear the received properties. | |
4059 | * Since we may have left a $recvd value on the | |
4060 | * system, we can't clear the $hasrecvd flag. | |
4061 | */ | |
428870ff | 4062 | zc->zc_obj |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4063 | } else if (first_recvd_props) { |
4064 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4065 | } |
4066 | ||
4067 | if (origprops == NULL && !drc.drc_newfs) { | |
4068 | /* We failed to stash the original properties. */ | |
4069 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4070 | } | |
4071 | ||
4072 | /* | |
4073 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4074 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4075 | * explictly if we're restoring local properties cleared in the | |
4076 | * first new-style receive. | |
4077 | */ | |
4078 | if (origprops != NULL && | |
4079 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
4080 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
4081 | origprops, NULL) != 0) { | |
4082 | /* | |
4083 | * We stashed the original properties but failed to | |
4084 | * restore them. | |
4085 | */ | |
4086 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4087 | } | |
b128c09f BB |
4088 | } |
4089 | out: | |
b128c09f BB |
4090 | nvlist_free(props); |
4091 | nvlist_free(origprops); | |
428870ff | 4092 | nvlist_free(errors); |
34dc7c2f | 4093 | releasef(fd); |
428870ff BB |
4094 | |
4095 | if (error == 0) | |
4096 | error = props_error; | |
4097 | ||
34dc7c2f BB |
4098 | return (error); |
4099 | } | |
4100 | ||
4101 | /* | |
4102 | * inputs: | |
4103 | * zc_name name of snapshot to send | |
34dc7c2f | 4104 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4105 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4106 | * zc_sendobj objsetid of snapshot to send | |
4107 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4108 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4109 | * output size in zc_objset_type. | |
34dc7c2f BB |
4110 | * |
4111 | * outputs: none | |
4112 | */ | |
4113 | static int | |
4114 | zfs_ioc_send(zfs_cmd_t *zc) | |
4115 | { | |
34dc7c2f BB |
4116 | int error; |
4117 | offset_t off; | |
330d06f9 | 4118 | boolean_t estimate = (zc->zc_guid != 0); |
34dc7c2f | 4119 | |
13fe0198 MA |
4120 | if (zc->zc_obj != 0) { |
4121 | dsl_pool_t *dp; | |
4122 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4123 | |
13fe0198 MA |
4124 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4125 | if (error != 0) | |
572e2857 | 4126 | return (error); |
13fe0198 MA |
4127 | |
4128 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4129 | if (error != 0) { | |
4130 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4131 | return (error); |
4132 | } | |
13fe0198 MA |
4133 | |
4134 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
4135 | zc->zc_fromobj = tosnap->ds_dir->dd_phys->dd_origin_obj; | |
4136 | dsl_dataset_rele(tosnap, FTAG); | |
4137 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4138 | } |
4139 | ||
13fe0198 MA |
4140 | if (estimate) { |
4141 | dsl_pool_t *dp; | |
4142 | dsl_dataset_t *tosnap; | |
4143 | dsl_dataset_t *fromsnap = NULL; | |
4144 | ||
4145 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4146 | if (error != 0) | |
4147 | return (error); | |
6f1ffb06 | 4148 | |
13fe0198 MA |
4149 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); |
4150 | if (error != 0) { | |
4151 | dsl_pool_rele(dp, FTAG); | |
4152 | return (error); | |
6f1ffb06 MA |
4153 | } |
4154 | ||
13fe0198 MA |
4155 | if (zc->zc_fromobj != 0) { |
4156 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4157 | FTAG, &fromsnap); | |
4158 | if (error != 0) { | |
4159 | dsl_dataset_rele(tosnap, FTAG); | |
4160 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4161 | return (error); |
4162 | } | |
4163 | } | |
34dc7c2f | 4164 | |
6f1ffb06 | 4165 | error = dmu_send_estimate(tosnap, fromsnap, |
330d06f9 | 4166 | &zc->zc_objset_type); |
13fe0198 MA |
4167 | |
4168 | if (fromsnap != NULL) | |
4169 | dsl_dataset_rele(fromsnap, FTAG); | |
4170 | dsl_dataset_rele(tosnap, FTAG); | |
4171 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4172 | } else { |
4173 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4174 | if (fp == NULL) |
330d06f9 | 4175 | return (EBADF); |
34dc7c2f | 4176 | |
330d06f9 | 4177 | off = fp->f_offset; |
13fe0198 MA |
4178 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
4179 | zc->zc_fromobj, zc->zc_cookie, fp->f_vnode, &off); | |
34dc7c2f | 4180 | |
330d06f9 MA |
4181 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4182 | fp->f_offset = off; | |
4183 | releasef(zc->zc_cookie); | |
4184 | } | |
34dc7c2f BB |
4185 | return (error); |
4186 | } | |
4187 | ||
37abac6d BP |
4188 | /* |
4189 | * inputs: | |
4190 | * zc_name name of snapshot on which to report progress | |
4191 | * zc_cookie file descriptor of send stream | |
4192 | * | |
4193 | * outputs: | |
4194 | * zc_cookie number of bytes written in send stream thus far | |
4195 | */ | |
4196 | static int | |
4197 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4198 | { | |
13fe0198 | 4199 | dsl_pool_t *dp; |
37abac6d BP |
4200 | dsl_dataset_t *ds; |
4201 | dmu_sendarg_t *dsp = NULL; | |
4202 | int error; | |
4203 | ||
13fe0198 MA |
4204 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4205 | if (error != 0) | |
37abac6d BP |
4206 | return (error); |
4207 | ||
13fe0198 MA |
4208 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4209 | if (error != 0) { | |
4210 | dsl_pool_rele(dp, FTAG); | |
4211 | return (error); | |
4212 | } | |
4213 | ||
37abac6d BP |
4214 | mutex_enter(&ds->ds_sendstream_lock); |
4215 | ||
4216 | /* | |
4217 | * Iterate over all the send streams currently active on this dataset. | |
4218 | * If there's one which matches the specified file descriptor _and_ the | |
4219 | * stream was started by the current process, return the progress of | |
4220 | * that stream. | |
4221 | */ | |
4222 | ||
4223 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4224 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4225 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4226 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4227 | break; | |
4228 | } | |
4229 | ||
4230 | if (dsp != NULL) | |
4231 | zc->zc_cookie = *(dsp->dsa_off); | |
4232 | else | |
4233 | error = ENOENT; | |
4234 | ||
4235 | mutex_exit(&ds->ds_sendstream_lock); | |
4236 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4237 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4238 | return (error); |
4239 | } | |
4240 | ||
34dc7c2f BB |
4241 | static int |
4242 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4243 | { | |
4244 | int id, error; | |
4245 | ||
4246 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4247 | &zc->zc_inject_record); | |
4248 | ||
4249 | if (error == 0) | |
4250 | zc->zc_guid = (uint64_t)id; | |
4251 | ||
4252 | return (error); | |
4253 | } | |
4254 | ||
4255 | static int | |
4256 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4257 | { | |
4258 | return (zio_clear_fault((int)zc->zc_guid)); | |
4259 | } | |
4260 | ||
4261 | static int | |
4262 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4263 | { | |
4264 | int id = (int)zc->zc_guid; | |
4265 | int error; | |
4266 | ||
4267 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4268 | &zc->zc_inject_record); | |
4269 | ||
4270 | zc->zc_guid = id; | |
4271 | ||
4272 | return (error); | |
4273 | } | |
4274 | ||
4275 | static int | |
4276 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4277 | { | |
4278 | spa_t *spa; | |
4279 | int error; | |
4280 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4281 | ||
4282 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4283 | return (error); | |
4284 | ||
4285 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4286 | &count); | |
4287 | if (error == 0) | |
4288 | zc->zc_nvlist_dst_size = count; | |
4289 | else | |
4290 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4291 | ||
4292 | spa_close(spa, FTAG); | |
4293 | ||
4294 | return (error); | |
4295 | } | |
4296 | ||
4297 | static int | |
4298 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4299 | { | |
4300 | spa_t *spa; | |
4301 | vdev_t *vd; | |
34dc7c2f BB |
4302 | int error; |
4303 | ||
34dc7c2f | 4304 | /* |
b128c09f | 4305 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4306 | */ |
b128c09f BB |
4307 | mutex_enter(&spa_namespace_lock); |
4308 | spa = spa_lookup(zc->zc_name); | |
4309 | if (spa == NULL) { | |
4310 | mutex_exit(&spa_namespace_lock); | |
4311 | return (EIO); | |
4312 | } | |
428870ff | 4313 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4314 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4315 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4316 | } |
428870ff | 4317 | spa->spa_last_open_failed = 0; |
b128c09f | 4318 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4319 | |
428870ff BB |
4320 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4321 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4322 | } else { | |
4323 | nvlist_t *policy; | |
4324 | nvlist_t *config = NULL; | |
4325 | ||
b8864a23 | 4326 | if (zc->zc_nvlist_src == 0) |
428870ff BB |
4327 | return (EINVAL); |
4328 | ||
4329 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4330 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4331 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4332 | policy, &config); | |
4333 | if (config != NULL) { | |
572e2857 BB |
4334 | int err; |
4335 | ||
4336 | if ((err = put_nvlist(zc, config)) != 0) | |
4337 | error = err; | |
428870ff BB |
4338 | nvlist_free(config); |
4339 | } | |
4340 | nvlist_free(policy); | |
4341 | } | |
4342 | } | |
4343 | ||
13fe0198 | 4344 | if (error != 0) |
b128c09f BB |
4345 | return (error); |
4346 | ||
428870ff | 4347 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4348 | |
4349 | if (zc->zc_guid == 0) { | |
4350 | vd = NULL; | |
b128c09f BB |
4351 | } else { |
4352 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4353 | if (vd == NULL) { |
b128c09f | 4354 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f BB |
4355 | spa_close(spa, FTAG); |
4356 | return (ENODEV); | |
4357 | } | |
4358 | } | |
4359 | ||
b128c09f BB |
4360 | vdev_clear(spa, vd); |
4361 | ||
4362 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4363 | |
b128c09f BB |
4364 | /* |
4365 | * Resume any suspended I/Os. | |
4366 | */ | |
9babb374 BB |
4367 | if (zio_resume(spa) != 0) |
4368 | error = EIO; | |
34dc7c2f BB |
4369 | |
4370 | spa_close(spa, FTAG); | |
4371 | ||
9babb374 | 4372 | return (error); |
34dc7c2f BB |
4373 | } |
4374 | ||
1bd201e7 CS |
4375 | static int |
4376 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4377 | { | |
4378 | spa_t *spa; | |
4379 | int error; | |
4380 | ||
4381 | error = spa_open(zc->zc_name, &spa, FTAG); | |
13fe0198 | 4382 | if (error != 0) |
1bd201e7 CS |
4383 | return (error); |
4384 | ||
4385 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
4386 | |
4387 | /* | |
4388 | * If a resilver is already in progress then set the | |
4389 | * spa_scrub_reopen flag to B_TRUE so that we don't restart | |
4390 | * the scan as a side effect of the reopen. Otherwise, let | |
4391 | * vdev_open() decided if a resilver is required. | |
4392 | */ | |
4393 | spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); | |
1bd201e7 | 4394 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
4395 | spa->spa_scrub_reopen = B_FALSE; |
4396 | ||
1bd201e7 CS |
4397 | (void) spa_vdev_state_exit(spa, NULL, 0); |
4398 | spa_close(spa, FTAG); | |
4399 | return (0); | |
4400 | } | |
34dc7c2f BB |
4401 | /* |
4402 | * inputs: | |
4403 | * zc_name name of filesystem | |
4404 | * zc_value name of origin snapshot | |
4405 | * | |
428870ff BB |
4406 | * outputs: |
4407 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4408 | */ |
4409 | static int | |
4410 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4411 | { | |
4412 | char *cp; | |
4413 | ||
4414 | /* | |
4415 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4416 | * it's easier. | |
4417 | */ | |
4418 | cp = strchr(zc->zc_value, '@'); | |
4419 | if (cp) | |
4420 | *cp = '\0'; | |
4421 | (void) dmu_objset_find(zc->zc_value, | |
13fe0198 | 4422 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 4423 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4424 | } |
4425 | ||
9babb374 BB |
4426 | /* |
4427 | * Retrieve a single {user|group}{used|quota}@... property. | |
4428 | * | |
4429 | * inputs: | |
4430 | * zc_name name of filesystem | |
4431 | * zc_objset_type zfs_userquota_prop_t | |
4432 | * zc_value domain name (eg. "S-1-234-567-89") | |
4433 | * zc_guid RID/UID/GID | |
4434 | * | |
4435 | * outputs: | |
4436 | * zc_cookie property value | |
4437 | */ | |
4438 | static int | |
4439 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4440 | { | |
3558fd73 | 4441 | zfs_sb_t *zsb; |
9babb374 BB |
4442 | int error; |
4443 | ||
4444 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
4445 | return (EINVAL); | |
4446 | ||
3558fd73 | 4447 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4448 | if (error != 0) |
9babb374 BB |
4449 | return (error); |
4450 | ||
3558fd73 | 4451 | error = zfs_userspace_one(zsb, |
9babb374 | 4452 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4453 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4454 | |
4455 | return (error); | |
4456 | } | |
4457 | ||
4458 | /* | |
4459 | * inputs: | |
4460 | * zc_name name of filesystem | |
4461 | * zc_cookie zap cursor | |
4462 | * zc_objset_type zfs_userquota_prop_t | |
4463 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4464 | * | |
4465 | * outputs: | |
4466 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4467 | * zc_cookie zap cursor | |
4468 | */ | |
4469 | static int | |
4470 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4471 | { | |
3558fd73 | 4472 | zfs_sb_t *zsb; |
428870ff | 4473 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4474 | int error; |
4475 | void *buf; | |
428870ff BB |
4476 | |
4477 | if (bufsize <= 0) | |
4478 | return (ENOMEM); | |
9babb374 | 4479 | |
3558fd73 | 4480 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4481 | if (error != 0) |
9babb374 BB |
4482 | return (error); |
4483 | ||
2b8cad61 | 4484 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4485 | |
3558fd73 | 4486 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4487 | buf, &zc->zc_nvlist_dst_size); |
4488 | ||
4489 | if (error == 0) { | |
4490 | error = xcopyout(buf, | |
4491 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4492 | zc->zc_nvlist_dst_size); | |
4493 | } | |
2b8cad61 | 4494 | vmem_free(buf, bufsize); |
3558fd73 | 4495 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4496 | |
4497 | return (error); | |
4498 | } | |
4499 | ||
4500 | /* | |
4501 | * inputs: | |
4502 | * zc_name name of filesystem | |
4503 | * | |
4504 | * outputs: | |
4505 | * none | |
4506 | */ | |
4507 | static int | |
4508 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4509 | { | |
4510 | objset_t *os; | |
428870ff | 4511 | int error = 0; |
3558fd73 | 4512 | zfs_sb_t *zsb; |
9babb374 | 4513 | |
3558fd73 BB |
4514 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4515 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4516 | /* |
4517 | * If userused is not enabled, it may be because the | |
4518 | * objset needs to be closed & reopened (to grow the | |
4519 | * objset_phys_t). Suspend/resume the fs will do that. | |
4520 | */ | |
3558fd73 | 4521 | error = zfs_suspend_fs(zsb); |
428870ff | 4522 | if (error == 0) |
3558fd73 | 4523 | error = zfs_resume_fs(zsb, zc->zc_name); |
9babb374 BB |
4524 | } |
4525 | if (error == 0) | |
3558fd73 | 4526 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4527 | deactivate_super(zsb->z_sb); |
9babb374 | 4528 | } else { |
428870ff BB |
4529 | /* XXX kind of reading contents without owning */ |
4530 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4531 | if (error != 0) |
9babb374 BB |
4532 | return (error); |
4533 | ||
4534 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4535 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4536 | } |
4537 | ||
4538 | return (error); | |
4539 | } | |
4540 | ||
34dc7c2f BB |
4541 | static int |
4542 | zfs_ioc_share(zfs_cmd_t *zc) | |
4543 | { | |
46e18b3f | 4544 | return (ENOSYS); |
34dc7c2f BB |
4545 | } |
4546 | ||
9babb374 BB |
4547 | ace_t full_access[] = { |
4548 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4549 | }; | |
4550 | ||
572e2857 BB |
4551 | /* |
4552 | * inputs: | |
4553 | * zc_name name of containing filesystem | |
4554 | * zc_obj object # beyond which we want next in-use object # | |
4555 | * | |
4556 | * outputs: | |
4557 | * zc_obj next in-use object # | |
4558 | */ | |
4559 | static int | |
4560 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4561 | { | |
4562 | objset_t *os = NULL; | |
4563 | int error; | |
4564 | ||
4565 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4566 | if (error != 0) |
572e2857 BB |
4567 | return (error); |
4568 | ||
4569 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
4570 | os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); | |
4571 | ||
4572 | dmu_objset_rele(os, FTAG); | |
4573 | return (error); | |
4574 | } | |
4575 | ||
4576 | /* | |
4577 | * inputs: | |
4578 | * zc_name name of filesystem | |
4579 | * zc_value prefix name for snapshot | |
4580 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4581 | * | |
4582 | * outputs: | |
6f1ffb06 | 4583 | * zc_value short name of new snapshot |
572e2857 BB |
4584 | */ |
4585 | static int | |
4586 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4587 | { | |
4588 | char *snap_name; | |
13fe0198 | 4589 | char *hold_name; |
572e2857 | 4590 | int error; |
13fe0198 | 4591 | minor_t minor; |
572e2857 | 4592 | |
13fe0198 MA |
4593 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
4594 | if (error != 0) | |
572e2857 | 4595 | return (error); |
572e2857 | 4596 | |
13fe0198 MA |
4597 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
4598 | (u_longlong_t)ddi_get_lbolt64()); | |
4599 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
4600 | ||
4601 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
4602 | hold_name); | |
4603 | if (error == 0) | |
4604 | (void) strcpy(zc->zc_value, snap_name); | |
572e2857 | 4605 | strfree(snap_name); |
13fe0198 MA |
4606 | strfree(hold_name); |
4607 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4608 | return (error); | |
572e2857 BB |
4609 | } |
4610 | ||
4611 | /* | |
4612 | * inputs: | |
4613 | * zc_name name of "to" snapshot | |
4614 | * zc_value name of "from" snapshot | |
4615 | * zc_cookie file descriptor to write diff data on | |
4616 | * | |
4617 | * outputs: | |
4618 | * dmu_diff_record_t's to the file descriptor | |
4619 | */ | |
4620 | static int | |
4621 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4622 | { | |
572e2857 BB |
4623 | file_t *fp; |
4624 | offset_t off; | |
4625 | int error; | |
4626 | ||
572e2857 | 4627 | fp = getf(zc->zc_cookie); |
13fe0198 | 4628 | if (fp == NULL) |
572e2857 | 4629 | return (EBADF); |
572e2857 BB |
4630 | |
4631 | off = fp->f_offset; | |
4632 | ||
13fe0198 | 4633 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
4634 | |
4635 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4636 | fp->f_offset = off; | |
4637 | releasef(zc->zc_cookie); | |
4638 | ||
572e2857 BB |
4639 | return (error); |
4640 | } | |
4641 | ||
9babb374 BB |
4642 | /* |
4643 | * Remove all ACL files in shares dir | |
4644 | */ | |
3c9609b3 | 4645 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4646 | static int |
4647 | zfs_smb_acl_purge(znode_t *dzp) | |
4648 | { | |
4649 | zap_cursor_t zc; | |
4650 | zap_attribute_t zap; | |
3558fd73 | 4651 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4652 | int error; |
4653 | ||
3558fd73 | 4654 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4655 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4656 | zap_cursor_advance(&zc)) { | |
4657 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4658 | NULL, 0)) != 0) | |
4659 | break; | |
4660 | } | |
4661 | zap_cursor_fini(&zc); | |
4662 | return (error); | |
4663 | } | |
3c9609b3 | 4664 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4665 | |
4666 | static int | |
4667 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4668 | { | |
3c9609b3 | 4669 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4670 | vnode_t *vp; |
4671 | znode_t *dzp; | |
4672 | vnode_t *resourcevp = NULL; | |
4673 | znode_t *sharedir; | |
3558fd73 | 4674 | zfs_sb_t *zsb; |
9babb374 BB |
4675 | nvlist_t *nvlist; |
4676 | char *src, *target; | |
4677 | vattr_t vattr; | |
4678 | vsecattr_t vsec; | |
4679 | int error = 0; | |
4680 | ||
4681 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4682 | NO_FOLLOW, NULL, &vp)) != 0) | |
4683 | return (error); | |
4684 | ||
4685 | /* Now make sure mntpnt and dataset are ZFS */ | |
4686 | ||
4687 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4688 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4689 | zc->zc_name) != 0)) { | |
4690 | VN_RELE(vp); | |
4691 | return (EINVAL); | |
4692 | } | |
4693 | ||
4694 | dzp = VTOZ(vp); | |
3558fd73 BB |
4695 | zsb = ZTOZSB(dzp); |
4696 | ZFS_ENTER(zsb); | |
9babb374 BB |
4697 | |
4698 | /* | |
4699 | * Create share dir if its missing. | |
4700 | */ | |
3558fd73 BB |
4701 | mutex_enter(&zsb->z_lock); |
4702 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4703 | dmu_tx_t *tx; |
4704 | ||
3558fd73 | 4705 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4706 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4707 | ZFS_SHARES_DIR); | |
4708 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4709 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 4710 | if (error != 0) { |
9babb374 BB |
4711 | dmu_tx_abort(tx); |
4712 | } else { | |
3558fd73 | 4713 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4714 | dmu_tx_commit(tx); |
4715 | } | |
13fe0198 | 4716 | if (error != 0) { |
3558fd73 | 4717 | mutex_exit(&zsb->z_lock); |
9babb374 | 4718 | VN_RELE(vp); |
3558fd73 | 4719 | ZFS_EXIT(zsb); |
9babb374 BB |
4720 | return (error); |
4721 | } | |
4722 | } | |
3558fd73 | 4723 | mutex_exit(&zsb->z_lock); |
9babb374 | 4724 | |
3558fd73 BB |
4725 | ASSERT(zsb->z_shares_dir); |
4726 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4727 | VN_RELE(vp); |
3558fd73 | 4728 | ZFS_EXIT(zsb); |
9babb374 BB |
4729 | return (error); |
4730 | } | |
4731 | ||
4732 | switch (zc->zc_cookie) { | |
4733 | case ZFS_SMB_ACL_ADD: | |
4734 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4735 | vattr.va_mode = S_IFREG|0777; |
4736 | vattr.va_uid = 0; | |
4737 | vattr.va_gid = 0; | |
4738 | ||
4739 | vsec.vsa_mask = VSA_ACE; | |
4740 | vsec.vsa_aclentp = &full_access; | |
4741 | vsec.vsa_aclentsz = sizeof (full_access); | |
4742 | vsec.vsa_aclcnt = 1; | |
4743 | ||
4744 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4745 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4746 | if (resourcevp) | |
4747 | VN_RELE(resourcevp); | |
4748 | break; | |
4749 | ||
4750 | case ZFS_SMB_ACL_REMOVE: | |
4751 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4752 | NULL, 0); | |
4753 | break; | |
4754 | ||
4755 | case ZFS_SMB_ACL_RENAME: | |
4756 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4757 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4758 | VN_RELE(vp); | |
3558fd73 | 4759 | ZFS_EXIT(zsb); |
9babb374 BB |
4760 | return (error); |
4761 | } | |
4762 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4763 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4764 | &target)) { | |
4765 | VN_RELE(vp); | |
4766 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4767 | ZFS_EXIT(zsb); |
428870ff | 4768 | nvlist_free(nvlist); |
9babb374 BB |
4769 | return (error); |
4770 | } | |
4771 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4772 | kcred, NULL, 0); | |
4773 | nvlist_free(nvlist); | |
4774 | break; | |
4775 | ||
4776 | case ZFS_SMB_ACL_PURGE: | |
4777 | error = zfs_smb_acl_purge(sharedir); | |
4778 | break; | |
4779 | ||
4780 | default: | |
4781 | error = EINVAL; | |
4782 | break; | |
4783 | } | |
4784 | ||
4785 | VN_RELE(vp); | |
4786 | VN_RELE(ZTOV(sharedir)); | |
4787 | ||
3558fd73 | 4788 | ZFS_EXIT(zsb); |
9babb374 BB |
4789 | |
4790 | return (error); | |
325f0235 BB |
4791 | #else |
4792 | return (ENOTSUP); | |
3c9609b3 | 4793 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4794 | } |
4795 | ||
45d1cae3 | 4796 | /* |
13fe0198 MA |
4797 | * innvl: { |
4798 | * "holds" -> { snapname -> holdname (string), ... } | |
4799 | * (optional) "cleanup_fd" -> fd (int32) | |
4800 | * } | |
45d1cae3 | 4801 | * |
13fe0198 MA |
4802 | * outnvl: { |
4803 | * snapname -> error value (int32) | |
4804 | * ... | |
4805 | * } | |
45d1cae3 | 4806 | */ |
13fe0198 | 4807 | /* ARGSUSED */ |
45d1cae3 | 4808 | static int |
13fe0198 | 4809 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 4810 | { |
13fe0198 MA |
4811 | nvlist_t *holds; |
4812 | int cleanup_fd = -1; | |
572e2857 BB |
4813 | int error; |
4814 | minor_t minor = 0; | |
45d1cae3 | 4815 | |
13fe0198 MA |
4816 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
4817 | if (error != 0) | |
572e2857 BB |
4818 | return (EINVAL); |
4819 | ||
13fe0198 MA |
4820 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
4821 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
4822 | if (error != 0) | |
572e2857 | 4823 | return (error); |
572e2857 | 4824 | } |
572e2857 | 4825 | |
13fe0198 MA |
4826 | error = dsl_dataset_user_hold(holds, minor, errlist); |
4827 | if (minor != 0) | |
4828 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 4829 | return (error); |
45d1cae3 BB |
4830 | } |
4831 | ||
4832 | /* | |
13fe0198 | 4833 | * innvl is not used. |
45d1cae3 | 4834 | * |
13fe0198 MA |
4835 | * outnvl: { |
4836 | * holdname -> time added (uint64 seconds since epoch) | |
4837 | * ... | |
4838 | * } | |
45d1cae3 | 4839 | */ |
13fe0198 | 4840 | /* ARGSUSED */ |
45d1cae3 | 4841 | static int |
13fe0198 | 4842 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 4843 | { |
13fe0198 | 4844 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
4845 | } |
4846 | ||
4847 | /* | |
13fe0198 MA |
4848 | * innvl: { |
4849 | * snapname -> { holdname, ... } | |
4850 | * ... | |
4851 | * } | |
45d1cae3 | 4852 | * |
13fe0198 MA |
4853 | * outnvl: { |
4854 | * snapname -> error value (int32) | |
4855 | * ... | |
4856 | * } | |
45d1cae3 | 4857 | */ |
13fe0198 | 4858 | /* ARGSUSED */ |
45d1cae3 | 4859 | static int |
13fe0198 | 4860 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 4861 | { |
13fe0198 | 4862 | nvpair_t *pair; |
45d1cae3 | 4863 | |
13fe0198 MA |
4864 | /* |
4865 | * The release may cause the snapshot to be destroyed; make sure it | |
4866 | * is not mounted. | |
4867 | */ | |
4868 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
4869 | pair = nvlist_next_nvpair(holds, pair)) | |
4870 | zfs_unmount_snap(nvpair_name(pair)); | |
45d1cae3 | 4871 | |
13fe0198 | 4872 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
4873 | } |
4874 | ||
26685276 BB |
4875 | /* |
4876 | * inputs: | |
4877 | * zc_guid flags (ZEVENT_NONBLOCK) | |
4878 | * | |
4879 | * outputs: | |
4880 | * zc_nvlist_dst next nvlist event | |
4881 | * zc_cookie dropped events since last get | |
4882 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4883 | */ | |
4884 | static int | |
4885 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
4886 | { | |
4887 | zfs_zevent_t *ze; | |
4888 | nvlist_t *event = NULL; | |
4889 | minor_t minor; | |
4890 | uint64_t dropped = 0; | |
4891 | int error; | |
4892 | ||
4893 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
4894 | if (error != 0) | |
4895 | return (error); | |
4896 | ||
4897 | do { | |
baa40d45 BB |
4898 | error = zfs_zevent_next(ze, &event, |
4899 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
4900 | if (event != NULL) { |
4901 | zc->zc_cookie = dropped; | |
4902 | error = put_nvlist(zc, event); | |
baa40d45 | 4903 | nvlist_free(event); |
26685276 BB |
4904 | } |
4905 | ||
4906 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
4907 | break; | |
4908 | ||
4909 | if ((error == 0) || (error != ENOENT)) | |
4910 | break; | |
4911 | ||
4912 | error = zfs_zevent_wait(ze); | |
13fe0198 | 4913 | if (error != 0) |
26685276 BB |
4914 | break; |
4915 | } while (1); | |
4916 | ||
4917 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
4918 | ||
4919 | return (error); | |
4920 | } | |
4921 | ||
4922 | /* | |
4923 | * outputs: | |
4924 | * zc_cookie cleared events count | |
4925 | */ | |
4926 | static int | |
4927 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
4928 | { | |
4929 | int count; | |
4930 | ||
4931 | zfs_zevent_drain_all(&count); | |
4932 | zc->zc_cookie = count; | |
4933 | ||
4934 | return 0; | |
4935 | } | |
4936 | ||
330d06f9 MA |
4937 | /* |
4938 | * inputs: | |
4939 | * zc_name name of new filesystem or snapshot | |
4940 | * zc_value full name of old snapshot | |
4941 | * | |
4942 | * outputs: | |
4943 | * zc_cookie space in bytes | |
4944 | * zc_objset_type compressed space in bytes | |
4945 | * zc_perm_action uncompressed space in bytes | |
4946 | */ | |
4947 | static int | |
4948 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
4949 | { | |
4950 | int error; | |
13fe0198 | 4951 | dsl_pool_t *dp; |
330d06f9 MA |
4952 | dsl_dataset_t *new, *old; |
4953 | ||
13fe0198 | 4954 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
4955 | if (error != 0) |
4956 | return (error); | |
13fe0198 MA |
4957 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
4958 | if (error != 0) { | |
4959 | dsl_pool_rele(dp, FTAG); | |
4960 | return (error); | |
4961 | } | |
4962 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
4963 | if (error != 0) { |
4964 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 4965 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
4966 | return (error); |
4967 | } | |
4968 | ||
4969 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
4970 | &zc->zc_objset_type, &zc->zc_perm_action); | |
4971 | dsl_dataset_rele(old, FTAG); | |
4972 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 4973 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
4974 | return (error); |
4975 | } | |
4976 | ||
4977 | /* | |
6f1ffb06 MA |
4978 | * innvl: { |
4979 | * "firstsnap" -> snapshot name | |
4980 | * } | |
330d06f9 | 4981 | * |
6f1ffb06 MA |
4982 | * outnvl: { |
4983 | * "used" -> space in bytes | |
4984 | * "compressed" -> compressed space in bytes | |
4985 | * "uncompressed" -> uncompressed space in bytes | |
4986 | * } | |
330d06f9 MA |
4987 | */ |
4988 | static int | |
6f1ffb06 | 4989 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
4990 | { |
4991 | int error; | |
13fe0198 | 4992 | dsl_pool_t *dp; |
330d06f9 | 4993 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
4994 | char *firstsnap; |
4995 | uint64_t used, comp, uncomp; | |
330d06f9 | 4996 | |
6f1ffb06 MA |
4997 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
4998 | return (EINVAL); | |
4999 | ||
13fe0198 | 5000 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5001 | if (error != 0) |
5002 | return (error); | |
13fe0198 MA |
5003 | |
5004 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
5005 | if (error != 0) { | |
5006 | dsl_pool_rele(dp, FTAG); | |
5007 | return (error); | |
5008 | } | |
5009 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
330d06f9 MA |
5010 | if (error != 0) { |
5011 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5012 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5013 | return (error); |
5014 | } | |
5015 | ||
6f1ffb06 | 5016 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5017 | dsl_dataset_rele(old, FTAG); |
5018 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5019 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5020 | fnvlist_add_uint64(outnvl, "used", used); |
5021 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5022 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5023 | return (error); |
5024 | } | |
5025 | ||
34dc7c2f | 5026 | /* |
6f1ffb06 MA |
5027 | * innvl: { |
5028 | * "fd" -> file descriptor to write stream to (int32) | |
5029 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
5030 | * } | |
5031 | * | |
5032 | * outnvl is unused | |
34dc7c2f | 5033 | */ |
6f1ffb06 MA |
5034 | /* ARGSUSED */ |
5035 | static int | |
5036 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5037 | { | |
6f1ffb06 MA |
5038 | int error; |
5039 | offset_t off; | |
13fe0198 | 5040 | char *fromname = NULL; |
6f1ffb06 | 5041 | int fd; |
13fe0198 | 5042 | file_t *fp; |
6f1ffb06 MA |
5043 | |
5044 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5045 | if (error != 0) | |
5046 | return (EINVAL); | |
5047 | ||
13fe0198 | 5048 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5049 | |
13fe0198 | 5050 | if ((fp = getf(fd)) == NULL) |
6f1ffb06 | 5051 | return (EBADF); |
6f1ffb06 MA |
5052 | |
5053 | off = fp->f_offset; | |
13fe0198 | 5054 | error = dmu_send(snapname, fromname, fd, fp->f_vnode, &off); |
6f1ffb06 MA |
5055 | |
5056 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5057 | fp->f_offset = off; | |
13fe0198 | 5058 | |
6f1ffb06 | 5059 | releasef(fd); |
6f1ffb06 MA |
5060 | return (error); |
5061 | } | |
5062 | ||
5063 | /* | |
5064 | * Determine approximately how large a zfs send stream will be -- the number | |
5065 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5066 | * | |
5067 | * innvl: { | |
5068 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
5069 | * } | |
5070 | * | |
5071 | * outnvl: { | |
5072 | * "space" -> bytes of space (uint64) | |
5073 | * } | |
5074 | */ | |
5075 | static int | |
5076 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5077 | { | |
13fe0198 MA |
5078 | dsl_pool_t *dp; |
5079 | dsl_dataset_t *fromsnap = NULL; | |
5080 | dsl_dataset_t *tosnap; | |
6f1ffb06 MA |
5081 | int error; |
5082 | char *fromname; | |
5083 | uint64_t space; | |
5084 | ||
13fe0198 MA |
5085 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5086 | if (error != 0) | |
6f1ffb06 MA |
5087 | return (error); |
5088 | ||
13fe0198 MA |
5089 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5090 | if (error != 0) { | |
5091 | dsl_pool_rele(dp, FTAG); | |
5092 | return (error); | |
5093 | } | |
5094 | ||
6f1ffb06 MA |
5095 | error = nvlist_lookup_string(innvl, "fromsnap", &fromname); |
5096 | if (error == 0) { | |
13fe0198 MA |
5097 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); |
5098 | if (error != 0) { | |
5099 | dsl_dataset_rele(tosnap, FTAG); | |
5100 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5101 | return (error); |
5102 | } | |
5103 | } | |
5104 | ||
5105 | error = dmu_send_estimate(tosnap, fromsnap, &space); | |
5106 | fnvlist_add_uint64(outnvl, "space", space); | |
5107 | ||
5108 | if (fromsnap != NULL) | |
13fe0198 MA |
5109 | dsl_dataset_rele(fromsnap, FTAG); |
5110 | dsl_dataset_rele(tosnap, FTAG); | |
5111 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5112 | return (error); |
5113 | } | |
5114 | ||
5115 | ||
5116 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; | |
5117 | ||
5118 | static void | |
5119 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5120 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5121 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
5122 | { | |
5123 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5124 | ||
5125 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5126 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5127 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5128 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5129 | ||
5130 | vec->zvec_legacy_func = func; | |
5131 | vec->zvec_secpolicy = secpolicy; | |
5132 | vec->zvec_namecheck = namecheck; | |
5133 | vec->zvec_allow_log = log_history; | |
5134 | vec->zvec_pool_check = pool_check; | |
5135 | } | |
5136 | ||
5137 | /* | |
5138 | * See the block comment at the beginning of this file for details on | |
5139 | * each argument to this function. | |
5140 | */ | |
5141 | static void | |
5142 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
5143 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5144 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
5145 | boolean_t allow_log) | |
5146 | { | |
5147 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5148 | ||
5149 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5150 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5151 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5152 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5153 | ||
5154 | /* if we are logging, the name must be valid */ | |
5155 | ASSERT(!allow_log || namecheck != NO_NAME); | |
5156 | ||
5157 | vec->zvec_name = name; | |
5158 | vec->zvec_func = func; | |
5159 | vec->zvec_secpolicy = secpolicy; | |
5160 | vec->zvec_namecheck = namecheck; | |
5161 | vec->zvec_pool_check = pool_check; | |
5162 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
5163 | vec->zvec_allow_log = allow_log; | |
5164 | } | |
5165 | ||
5166 | static void | |
5167 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5168 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
5169 | zfs_ioc_poolcheck_t pool_check) | |
5170 | { | |
5171 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5172 | POOL_NAME, log_history, pool_check); | |
5173 | } | |
5174 | ||
5175 | static void | |
5176 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5177 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
5178 | { | |
5179 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5180 | DATASET_NAME, B_FALSE, pool_check); | |
5181 | } | |
5182 | ||
5183 | static void | |
5184 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5185 | { | |
5186 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
5187 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5188 | } | |
5189 | ||
5190 | static void | |
5191 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5192 | zfs_secpolicy_func_t *secpolicy) | |
5193 | { | |
5194 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5195 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5196 | } | |
5197 | ||
5198 | static void | |
5199 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
5200 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
5201 | { | |
5202 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5203 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
5204 | } | |
5205 | ||
5206 | static void | |
5207 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5208 | { | |
5209 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
5210 | zfs_secpolicy_read); | |
5211 | } | |
5212 | ||
5213 | static void | |
5214 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5215 | zfs_secpolicy_func_t *secpolicy) | |
5216 | { | |
5217 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5218 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5219 | } | |
5220 | ||
5221 | static void | |
5222 | zfs_ioctl_init(void) | |
5223 | { | |
5224 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
5225 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
5226 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5227 | ||
5228 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
5229 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
5230 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
5231 | ||
5232 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
5233 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
5234 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5235 | ||
5236 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
5237 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
5238 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5239 | ||
5240 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
5241 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
5242 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5243 | ||
5244 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
5245 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
5246 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5247 | ||
5248 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
5249 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
5250 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5251 | ||
5252 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
5253 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
5254 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5255 | ||
13fe0198 MA |
5256 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
5257 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
5258 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5259 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
5260 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
5261 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5262 | ||
5263 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
5264 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
5265 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5266 | ||
6f1ffb06 MA |
5267 | /* IOCTLS that use the legacy function signature */ |
5268 | ||
5269 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
5270 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
5271 | ||
5272 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
5273 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5274 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
5275 | zfs_ioc_pool_scan); | |
5276 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
5277 | zfs_ioc_pool_upgrade); | |
5278 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
5279 | zfs_ioc_vdev_add); | |
5280 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
5281 | zfs_ioc_vdev_remove); | |
5282 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
5283 | zfs_ioc_vdev_set_state); | |
5284 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
5285 | zfs_ioc_vdev_attach); | |
5286 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
5287 | zfs_ioc_vdev_detach); | |
5288 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
5289 | zfs_ioc_vdev_setpath); | |
5290 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
5291 | zfs_ioc_vdev_setfru); | |
5292 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
5293 | zfs_ioc_pool_set_props); | |
5294 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
5295 | zfs_ioc_vdev_split); | |
5296 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
5297 | zfs_ioc_pool_reguid); | |
5298 | ||
5299 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
5300 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
5301 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
5302 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
5303 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
5304 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
5305 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
5306 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
5307 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
5308 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
5309 | ||
5310 | /* | |
5311 | * pool destroy, and export don't log the history as part of | |
5312 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
5313 | * does the logging of those commands. | |
5314 | */ | |
5315 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
5316 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); | |
5317 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, | |
5318 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); | |
5319 | ||
5320 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
5321 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5322 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
5323 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5324 | ||
5325 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
5326 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
5327 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
5328 | zfs_ioc_dsobj_to_dsname, | |
5329 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
5330 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
5331 | zfs_ioc_pool_get_history, | |
5332 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
5333 | ||
5334 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
5335 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5336 | ||
5337 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
5338 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5339 | zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, | |
5340 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5341 | ||
5342 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
5343 | zfs_ioc_space_written); | |
6f1ffb06 MA |
5344 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
5345 | zfs_ioc_objset_recvd_props); | |
5346 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
5347 | zfs_ioc_next_obj); | |
5348 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
5349 | zfs_ioc_get_fsacl); | |
5350 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
5351 | zfs_ioc_objset_stats); | |
5352 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
5353 | zfs_ioc_objset_zplprops); | |
5354 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
5355 | zfs_ioc_dataset_list_next); | |
5356 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
5357 | zfs_ioc_snapshot_list_next); | |
5358 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
5359 | zfs_ioc_send_progress); | |
5360 | ||
5361 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
5362 | zfs_ioc_diff, zfs_secpolicy_diff); | |
5363 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
5364 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
5365 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
5366 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
5367 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
5368 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
5369 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
5370 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
5371 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
5372 | zfs_ioc_send, zfs_secpolicy_send); | |
5373 | ||
5374 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
5375 | zfs_secpolicy_none); | |
5376 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
5377 | zfs_secpolicy_destroy); | |
5378 | zfs_ioctl_register_dataset_modify(ZFS_IOC_ROLLBACK, zfs_ioc_rollback, | |
5379 | zfs_secpolicy_rollback); | |
5380 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, | |
5381 | zfs_secpolicy_rename); | |
5382 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
5383 | zfs_secpolicy_recv); | |
5384 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
5385 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
5386 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
5387 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
5388 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
5389 | zfs_secpolicy_set_fsacl); | |
5390 | ||
5391 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
5392 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
5393 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
5394 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
5395 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
5396 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
5397 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5398 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
5399 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
5400 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5401 | ||
5402 | /* | |
5403 | * ZoL functions | |
5404 | */ | |
5405 | zfs_ioctl_register_legacy(ZFS_IOC_CREATE_MINOR, zfs_ioc_create_minor, | |
5406 | zfs_secpolicy_config, DATASET_NAME, B_FALSE, POOL_CHECK_NONE); | |
5407 | zfs_ioctl_register_legacy(ZFS_IOC_REMOVE_MINOR, zfs_ioc_remove_minor, | |
5408 | zfs_secpolicy_config, DATASET_NAME, B_FALSE, POOL_CHECK_NONE); | |
5409 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, | |
5410 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5411 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
5412 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5413 | } | |
34dc7c2f | 5414 | |
9babb374 | 5415 | int |
572e2857 BB |
5416 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
5417 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
5418 | { |
5419 | spa_t *spa; | |
5420 | int error; | |
5421 | ||
5422 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
5423 | ||
572e2857 BB |
5424 | if (check & POOL_CHECK_NONE) |
5425 | return (0); | |
5426 | ||
9babb374 BB |
5427 | error = spa_open(name, &spa, FTAG); |
5428 | if (error == 0) { | |
572e2857 | 5429 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
9babb374 | 5430 | error = EAGAIN; |
572e2857 BB |
5431 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
5432 | error = EROFS; | |
9babb374 BB |
5433 | spa_close(spa, FTAG); |
5434 | } | |
5435 | return (error); | |
5436 | } | |
5437 | ||
325f0235 BB |
5438 | static void * |
5439 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
5440 | { | |
5441 | zfsdev_state_t *zs; | |
5442 | ||
5443 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
5444 | ||
5445 | for (zs = list_head(&zfsdev_state_list); zs != NULL; | |
5446 | zs = list_next(&zfsdev_state_list, zs)) { | |
5447 | if (zs->zs_minor == minor) { | |
5448 | switch (which) { | |
5449 | case ZST_ONEXIT: return (zs->zs_onexit); | |
5450 | case ZST_ZEVENT: return (zs->zs_zevent); | |
5451 | case ZST_ALL: return (zs); | |
5452 | } | |
5453 | } | |
5454 | } | |
5455 | ||
5456 | return NULL; | |
5457 | } | |
5458 | ||
5459 | void * | |
5460 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
5461 | { | |
5462 | void *ptr; | |
5463 | ||
5464 | mutex_enter(&zfsdev_state_lock); | |
5465 | ptr = zfsdev_get_state_impl(minor, which); | |
5466 | mutex_exit(&zfsdev_state_lock); | |
5467 | ||
5468 | return ptr; | |
5469 | } | |
5470 | ||
5471 | minor_t | |
5472 | zfsdev_getminor(struct file *filp) | |
5473 | { | |
5474 | ASSERT(filp != NULL); | |
5475 | ASSERT(filp->private_data != NULL); | |
5476 | ||
5477 | return (((zfsdev_state_t *)filp->private_data)->zs_minor); | |
5478 | } | |
5479 | ||
572e2857 | 5480 | /* |
325f0235 BB |
5481 | * Find a free minor number. The zfsdev_state_list is expected to |
5482 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
5483 | */ |
5484 | minor_t | |
5485 | zfsdev_minor_alloc(void) | |
5486 | { | |
325f0235 | 5487 | static minor_t last_minor = 0; |
572e2857 BB |
5488 | minor_t m; |
5489 | ||
5490 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
5491 | ||
5492 | for (m = last_minor + 1; m != last_minor; m++) { | |
5493 | if (m > ZFSDEV_MAX_MINOR) | |
5494 | m = 1; | |
325f0235 | 5495 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
5496 | last_minor = m; |
5497 | return (m); | |
5498 | } | |
5499 | } | |
5500 | ||
5501 | return (0); | |
5502 | } | |
5503 | ||
5504 | static int | |
325f0235 | 5505 | zfsdev_state_init(struct file *filp) |
572e2857 | 5506 | { |
325f0235 | 5507 | zfsdev_state_t *zs; |
572e2857 | 5508 | minor_t minor; |
572e2857 BB |
5509 | |
5510 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 5511 | |
325f0235 BB |
5512 | minor = zfsdev_minor_alloc(); |
5513 | if (minor == 0) | |
5514 | return (ENXIO); | |
5515 | ||
5516 | zs = kmem_zalloc( sizeof(zfsdev_state_t), KM_SLEEP); | |
572e2857 | 5517 | |
325f0235 BB |
5518 | zs->zs_file = filp; |
5519 | zs->zs_minor = minor; | |
5520 | filp->private_data = zs; | |
572e2857 | 5521 | |
325f0235 BB |
5522 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
5523 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 5524 | |
325f0235 | 5525 | list_insert_tail(&zfsdev_state_list, zs); |
572e2857 BB |
5526 | |
5527 | return (0); | |
5528 | } | |
5529 | ||
325f0235 BB |
5530 | static int |
5531 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 5532 | { |
325f0235 | 5533 | zfsdev_state_t *zs; |
572e2857 | 5534 | |
325f0235 BB |
5535 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
5536 | ASSERT(filp->private_data != NULL); | |
572e2857 | 5537 | |
325f0235 BB |
5538 | zs = filp->private_data; |
5539 | zfs_onexit_destroy(zs->zs_onexit); | |
5540 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 5541 | |
325f0235 BB |
5542 | list_remove(&zfsdev_state_list, zs); |
5543 | kmem_free(zs, sizeof(zfsdev_state_t)); | |
572e2857 | 5544 | |
325f0235 | 5545 | return 0; |
572e2857 BB |
5546 | } |
5547 | ||
5548 | static int | |
325f0235 | 5549 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 5550 | { |
325f0235 | 5551 | int error; |
572e2857 | 5552 | |
325f0235 BB |
5553 | mutex_enter(&zfsdev_state_lock); |
5554 | error = zfsdev_state_init(filp); | |
5555 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 5556 | |
325f0235 | 5557 | return (-error); |
572e2857 BB |
5558 | } |
5559 | ||
5560 | static int | |
325f0235 | 5561 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 5562 | { |
325f0235 | 5563 | int error; |
572e2857 BB |
5564 | |
5565 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 5566 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
5567 | mutex_exit(&zfsdev_state_lock); |
5568 | ||
325f0235 | 5569 | return (-error); |
572e2857 BB |
5570 | } |
5571 | ||
325f0235 BB |
5572 | static long |
5573 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
5574 | { |
5575 | zfs_cmd_t *zc; | |
6f1ffb06 MA |
5576 | uint_t vecnum; |
5577 | int error, rc, len, flag = 0; | |
5578 | const zfs_ioc_vec_t *vec; | |
5579 | char saved_poolname[MAXNAMELEN]; | |
5580 | nvlist_t *innvl = NULL; | |
5581 | ||
5582 | vecnum = cmd - ZFS_IOC_FIRST; | |
5583 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
325f0235 | 5584 | return (-EINVAL); |
6f1ffb06 | 5585 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 5586 | |
00b46022 | 5587 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 5588 | |
9babb374 | 5589 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5590 | if (error != 0) { |
428870ff | 5591 | error = EFAULT; |
6f1ffb06 MA |
5592 | goto out; |
5593 | } | |
34dc7c2f | 5594 | |
6f1ffb06 MA |
5595 | zc->zc_iflags = flag & FKIOCTL; |
5596 | if (zc->zc_nvlist_src_size != 0) { | |
5597 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
5598 | zc->zc_iflags, &innvl); | |
5599 | if (error != 0) | |
5600 | goto out; | |
5601 | } | |
34dc7c2f BB |
5602 | |
5603 | /* | |
5604 | * Ensure that all pool/dataset names are valid before we pass down to | |
5605 | * the lower layers. | |
5606 | */ | |
6f1ffb06 MA |
5607 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
5608 | switch (vec->zvec_namecheck) { | |
5609 | case POOL_NAME: | |
5610 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5611 | error = EINVAL; | |
5612 | else | |
572e2857 | 5613 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5614 | vec->zvec_namecheck, vec->zvec_pool_check); |
5615 | break; | |
34dc7c2f | 5616 | |
6f1ffb06 MA |
5617 | case DATASET_NAME: |
5618 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5619 | error = EINVAL; | |
5620 | else | |
572e2857 | 5621 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5622 | vec->zvec_namecheck, vec->zvec_pool_check); |
5623 | break; | |
34dc7c2f | 5624 | |
6f1ffb06 MA |
5625 | case NO_NAME: |
5626 | break; | |
34dc7c2f BB |
5627 | } |
5628 | ||
34dc7c2f | 5629 | |
6f1ffb06 MA |
5630 | if (error == 0 && !(flag & FKIOCTL)) |
5631 | error = vec->zvec_secpolicy(zc, innvl, CRED()); | |
5632 | ||
5633 | if (error != 0) | |
5634 | goto out; | |
5635 | ||
5636 | /* legacy ioctls can modify zc_name */ | |
5637 | (void) strlcpy(saved_poolname, zc->zc_name, sizeof(saved_poolname)); | |
5638 | len = strcspn(saved_poolname, "/@") + 1; | |
5639 | saved_poolname[len] = '\0'; | |
5640 | ||
5641 | if (vec->zvec_func != NULL) { | |
5642 | nvlist_t *outnvl; | |
5643 | int puterror = 0; | |
5644 | spa_t *spa; | |
5645 | nvlist_t *lognv = NULL; | |
5646 | ||
5647 | ASSERT(vec->zvec_legacy_func == NULL); | |
5648 | ||
5649 | /* | |
5650 | * Add the innvl to the lognv before calling the func, | |
5651 | * in case the func changes the innvl. | |
5652 | */ | |
5653 | if (vec->zvec_allow_log) { | |
5654 | lognv = fnvlist_alloc(); | |
5655 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
5656 | vec->zvec_name); | |
5657 | if (!nvlist_empty(innvl)) { | |
5658 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
5659 | innvl); | |
5660 | } | |
5661 | } | |
5662 | ||
8769db39 | 5663 | VERIFY0(nvlist_alloc(&outnvl, NV_UNIQUE_NAME, KM_PUSHPAGE)); |
6f1ffb06 MA |
5664 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
5665 | ||
5666 | if (error == 0 && vec->zvec_allow_log && | |
5667 | spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
5668 | if (!nvlist_empty(outnvl)) { | |
5669 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
5670 | outnvl); | |
5671 | } | |
5672 | (void) spa_history_log_nvl(spa, lognv); | |
5673 | spa_close(spa, FTAG); | |
5674 | } | |
5675 | fnvlist_free(lognv); | |
5676 | ||
5677 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
5678 | int smusherror = 0; | |
5679 | if (vec->zvec_smush_outnvlist) { | |
5680 | smusherror = nvlist_smush(outnvl, | |
5681 | zc->zc_nvlist_dst_size); | |
5682 | } | |
5683 | if (smusherror == 0) | |
5684 | puterror = put_nvlist(zc, outnvl); | |
5685 | } | |
5686 | ||
5687 | if (puterror != 0) | |
5688 | error = puterror; | |
5689 | ||
5690 | nvlist_free(outnvl); | |
5691 | } else { | |
5692 | error = vec->zvec_legacy_func(zc); | |
5693 | } | |
5694 | ||
5695 | out: | |
5696 | nvlist_free(innvl); | |
9babb374 | 5697 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 MA |
5698 | if (error == 0 && rc != 0) |
5699 | error = EFAULT; | |
5700 | if (error == 0 && vec->zvec_allow_log) { | |
5701 | char *s = tsd_get(zfs_allow_log_key); | |
5702 | if (s != NULL) | |
5703 | strfree(s); | |
5704 | (void) tsd_set(zfs_allow_log_key, strdup(saved_poolname)); | |
34dc7c2f BB |
5705 | } |
5706 | ||
5707 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5708 | return (-error); |
34dc7c2f BB |
5709 | } |
5710 | ||
325f0235 BB |
5711 | #ifdef CONFIG_COMPAT |
5712 | static long | |
5713 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5714 | { |
325f0235 BB |
5715 | return zfsdev_ioctl(filp, cmd, arg); |
5716 | } | |
5717 | #else | |
f5e79474 | 5718 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5719 | #endif |
34dc7c2f | 5720 | |
325f0235 BB |
5721 | static const struct file_operations zfsdev_fops = { |
5722 | .open = zfsdev_open, | |
5723 | .release = zfsdev_release, | |
5724 | .unlocked_ioctl = zfsdev_ioctl, | |
5725 | .compat_ioctl = zfsdev_compat_ioctl, | |
5726 | .owner = THIS_MODULE, | |
5727 | }; | |
34dc7c2f | 5728 | |
325f0235 BB |
5729 | static struct miscdevice zfs_misc = { |
5730 | .minor = MISC_DYNAMIC_MINOR, | |
5731 | .name = ZFS_DRIVER, | |
5732 | .fops = &zfsdev_fops, | |
5733 | }; | |
34dc7c2f BB |
5734 | |
5735 | static int | |
325f0235 | 5736 | zfs_attach(void) |
34dc7c2f | 5737 | { |
325f0235 | 5738 | int error; |
34dc7c2f | 5739 | |
325f0235 BB |
5740 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
5741 | list_create(&zfsdev_state_list, sizeof (zfsdev_state_t), | |
5742 | offsetof(zfsdev_state_t, zs_next)); | |
34dc7c2f | 5743 | |
325f0235 | 5744 | error = misc_register(&zfs_misc); |
13fe0198 | 5745 | if (error != 0) { |
325f0235 BB |
5746 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); |
5747 | return (error); | |
5748 | } | |
34dc7c2f | 5749 | |
325f0235 | 5750 | return (0); |
34dc7c2f BB |
5751 | } |
5752 | ||
325f0235 BB |
5753 | static void |
5754 | zfs_detach(void) | |
34dc7c2f | 5755 | { |
325f0235 | 5756 | int error; |
34dc7c2f | 5757 | |
325f0235 | 5758 | error = misc_deregister(&zfs_misc); |
13fe0198 | 5759 | if (error != 0) |
325f0235 | 5760 | printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error); |
34dc7c2f | 5761 | |
325f0235 BB |
5762 | mutex_destroy(&zfsdev_state_lock); |
5763 | list_destroy(&zfsdev_state_list); | |
34dc7c2f BB |
5764 | } |
5765 | ||
6f1ffb06 MA |
5766 | static void |
5767 | zfs_allow_log_destroy(void *arg) | |
5768 | { | |
5769 | char *poolname = arg; | |
5770 | strfree(poolname); | |
5771 | } | |
325f0235 BB |
5772 | |
5773 | #ifdef DEBUG | |
5774 | #define ZFS_DEBUG_STR " (DEBUG mode)" | |
5775 | #else | |
5776 | #define ZFS_DEBUG_STR "" | |
5777 | #endif | |
34dc7c2f BB |
5778 | |
5779 | int | |
5780 | _init(void) | |
5781 | { | |
5782 | int error; | |
5783 | ||
5784 | spa_init(FREAD | FWRITE); | |
5785 | zfs_init(); | |
34dc7c2f | 5786 | |
325f0235 BB |
5787 | if ((error = zvol_init()) != 0) |
5788 | goto out1; | |
5789 | ||
6f1ffb06 MA |
5790 | zfs_ioctl_init(); |
5791 | ||
325f0235 BB |
5792 | if ((error = zfs_attach()) != 0) |
5793 | goto out2; | |
34dc7c2f | 5794 | |
d5446cfc | 5795 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
5796 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
5797 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 5798 | |
4b5d425f | 5799 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
a23cc0a4 | 5800 | "ZFS pool version %s, ZFS filesystem version %s\n", |
4b5d425f | 5801 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, |
a23cc0a4 | 5802 | SPA_VERSION_STRING, ZPL_VERSION_STRING); |
34dc7c2f BB |
5803 | |
5804 | return (0); | |
325f0235 BB |
5805 | |
5806 | out2: | |
5807 | (void) zvol_fini(); | |
5808 | out1: | |
5809 | zfs_fini(); | |
5810 | spa_fini(); | |
4b5d425f BB |
5811 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
5812 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, | |
5813 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
5814 | |
5815 | return (error); | |
34dc7c2f BB |
5816 | } |
5817 | ||
5818 | int | |
5819 | _fini(void) | |
5820 | { | |
325f0235 | 5821 | zfs_detach(); |
34dc7c2f BB |
5822 | zvol_fini(); |
5823 | zfs_fini(); | |
5824 | spa_fini(); | |
46e18b3f | 5825 | |
d5446cfc | 5826 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 5827 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 5828 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 5829 | |
4b5d425f BB |
5830 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
5831 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); | |
34dc7c2f | 5832 | |
325f0235 | 5833 | return (0); |
34dc7c2f | 5834 | } |
325f0235 BB |
5835 | |
5836 | #ifdef HAVE_SPL | |
5837 | spl_module_init(_init); | |
5838 | spl_module_exit(_fini); | |
5839 | ||
5840 | MODULE_DESCRIPTION("ZFS"); | |
5841 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
5842 | MODULE_LICENSE(ZFS_META_LICENSE); | |
5843 | #endif /* HAVE_SPL */ |