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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. |
fc581e05 | 27 | * Copyright 2015 Nexenta Systems, Inc. All rights reserved. |
788eb90c | 28 | * Copyright (c) 2014, Joyent, Inc. All rights reserved. |
3d45fdd6 | 29 | * Copyright (c) 2011, 2014 by Delphix. All rights reserved. |
9759c60f | 30 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
95fd54a1 | 31 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
a0bd735a | 32 | * Copyright (c) 2016 Actifio, Inc. All rights reserved. |
6f1ffb06 MA |
33 | */ |
34 | ||
35 | /* | |
36 | * ZFS ioctls. | |
37 | * | |
38 | * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage | |
39 | * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. | |
40 | * | |
41 | * There are two ways that we handle ioctls: the legacy way where almost | |
42 | * all of the logic is in the ioctl callback, and the new way where most | |
43 | * of the marshalling is handled in the common entry point, zfsdev_ioctl(). | |
44 | * | |
45 | * Non-legacy ioctls should be registered by calling | |
46 | * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked | |
47 | * from userland by lzc_ioctl(). | |
48 | * | |
49 | * The registration arguments are as follows: | |
50 | * | |
51 | * const char *name | |
52 | * The name of the ioctl. This is used for history logging. If the | |
53 | * ioctl returns successfully (the callback returns 0), and allow_log | |
54 | * is true, then a history log entry will be recorded with the input & | |
55 | * output nvlists. The log entry can be printed with "zpool history -i". | |
56 | * | |
57 | * zfs_ioc_t ioc | |
58 | * The ioctl request number, which userland will pass to ioctl(2). | |
59 | * The ioctl numbers can change from release to release, because | |
60 | * the caller (libzfs) must be matched to the kernel. | |
61 | * | |
62 | * zfs_secpolicy_func_t *secpolicy | |
63 | * This function will be called before the zfs_ioc_func_t, to | |
64 | * determine if this operation is permitted. It should return EPERM | |
65 | * on failure, and 0 on success. Checks include determining if the | |
66 | * dataset is visible in this zone, and if the user has either all | |
67 | * zfs privileges in the zone (SYS_MOUNT), or has been granted permission | |
68 | * to do this operation on this dataset with "zfs allow". | |
69 | * | |
70 | * zfs_ioc_namecheck_t namecheck | |
71 | * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool | |
72 | * name, a dataset name, or nothing. If the name is not well-formed, | |
73 | * the ioctl will fail and the callback will not be called. | |
74 | * Therefore, the callback can assume that the name is well-formed | |
75 | * (e.g. is null-terminated, doesn't have more than one '@' character, | |
76 | * doesn't have invalid characters). | |
77 | * | |
78 | * zfs_ioc_poolcheck_t pool_check | |
79 | * This specifies requirements on the pool state. If the pool does | |
80 | * not meet them (is suspended or is readonly), the ioctl will fail | |
81 | * and the callback will not be called. If any checks are specified | |
82 | * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. | |
83 | * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | | |
84 | * POOL_CHECK_READONLY). | |
85 | * | |
86 | * boolean_t smush_outnvlist | |
87 | * If smush_outnvlist is true, then the output is presumed to be a | |
88 | * list of errors, and it will be "smushed" down to fit into the | |
89 | * caller's buffer, by removing some entries and replacing them with a | |
90 | * single "N_MORE_ERRORS" entry indicating how many were removed. See | |
91 | * nvlist_smush() for details. If smush_outnvlist is false, and the | |
92 | * outnvlist does not fit into the userland-provided buffer, then the | |
93 | * ioctl will fail with ENOMEM. | |
94 | * | |
95 | * zfs_ioc_func_t *func | |
96 | * The callback function that will perform the operation. | |
97 | * | |
98 | * The callback should return 0 on success, or an error number on | |
99 | * failure. If the function fails, the userland ioctl will return -1, | |
100 | * and errno will be set to the callback's return value. The callback | |
101 | * will be called with the following arguments: | |
102 | * | |
103 | * const char *name | |
104 | * The name of the pool or dataset to operate on, from | |
105 | * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the | |
106 | * expected type (pool, dataset, or none). | |
107 | * | |
108 | * nvlist_t *innvl | |
109 | * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or | |
110 | * NULL if no input nvlist was provided. Changes to this nvlist are | |
111 | * ignored. If the input nvlist could not be deserialized, the | |
112 | * ioctl will fail and the callback will not be called. | |
113 | * | |
114 | * nvlist_t *outnvl | |
115 | * The output nvlist, initially empty. The callback can fill it in, | |
116 | * and it will be returned to userland by serializing it into | |
117 | * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization | |
118 | * fails (e.g. because the caller didn't supply a large enough | |
119 | * buffer), then the overall ioctl will fail. See the | |
120 | * 'smush_nvlist' argument above for additional behaviors. | |
121 | * | |
122 | * There are two typical uses of the output nvlist: | |
123 | * - To return state, e.g. property values. In this case, | |
124 | * smush_outnvlist should be false. If the buffer was not large | |
125 | * enough, the caller will reallocate a larger buffer and try | |
126 | * the ioctl again. | |
127 | * | |
128 | * - To return multiple errors from an ioctl which makes on-disk | |
129 | * changes. In this case, smush_outnvlist should be true. | |
130 | * Ioctls which make on-disk modifications should generally not | |
131 | * use the outnvl if they succeed, because the caller can not | |
132 | * distinguish between the operation failing, and | |
133 | * deserialization failing. | |
3541dc6d | 134 | */ |
34dc7c2f | 135 | |
34dc7c2f BB |
136 | #include <sys/types.h> |
137 | #include <sys/param.h> | |
138 | #include <sys/errno.h> | |
139 | #include <sys/uio.h> | |
140 | #include <sys/buf.h> | |
141 | #include <sys/modctl.h> | |
142 | #include <sys/open.h> | |
143 | #include <sys/file.h> | |
144 | #include <sys/kmem.h> | |
145 | #include <sys/conf.h> | |
146 | #include <sys/cmn_err.h> | |
147 | #include <sys/stat.h> | |
148 | #include <sys/zfs_ioctl.h> | |
428870ff | 149 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
150 | #include <sys/zfs_znode.h> |
151 | #include <sys/zap.h> | |
152 | #include <sys/spa.h> | |
153 | #include <sys/spa_impl.h> | |
154 | #include <sys/vdev.h> | |
428870ff | 155 | #include <sys/priv_impl.h> |
34dc7c2f BB |
156 | #include <sys/dmu.h> |
157 | #include <sys/dsl_dir.h> | |
158 | #include <sys/dsl_dataset.h> | |
159 | #include <sys/dsl_prop.h> | |
160 | #include <sys/dsl_deleg.h> | |
161 | #include <sys/dmu_objset.h> | |
37abac6d | 162 | #include <sys/dmu_impl.h> |
13fe0198 | 163 | #include <sys/dmu_tx.h> |
34dc7c2f BB |
164 | #include <sys/ddi.h> |
165 | #include <sys/sunddi.h> | |
166 | #include <sys/sunldi.h> | |
167 | #include <sys/policy.h> | |
168 | #include <sys/zone.h> | |
169 | #include <sys/nvpair.h> | |
170 | #include <sys/pathname.h> | |
171 | #include <sys/mount.h> | |
172 | #include <sys/sdt.h> | |
173 | #include <sys/fs/zfs.h> | |
ebe7e575 | 174 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 175 | #include <sys/zfs_dir.h> |
572e2857 | 176 | #include <sys/zfs_onexit.h> |
34dc7c2f | 177 | #include <sys/zvol.h> |
428870ff | 178 | #include <sys/dsl_scan.h> |
34dc7c2f | 179 | #include <sharefs/share.h> |
325f0235 BB |
180 | #include <sys/fm/util.h> |
181 | ||
13fe0198 MA |
182 | #include <sys/dmu_send.h> |
183 | #include <sys/dsl_destroy.h> | |
da536844 | 184 | #include <sys/dsl_bookmark.h> |
13fe0198 | 185 | #include <sys/dsl_userhold.h> |
9759c60f ED |
186 | #include <sys/zfeature.h> |
187 | ||
325f0235 | 188 | #include <linux/miscdevice.h> |
34dc7c2f BB |
189 | |
190 | #include "zfs_namecheck.h" | |
191 | #include "zfs_prop.h" | |
192 | #include "zfs_deleg.h" | |
428870ff | 193 | #include "zfs_comutil.h" |
34dc7c2f | 194 | |
325f0235 | 195 | kmutex_t zfsdev_state_lock; |
3937ab20 | 196 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
197 | |
198 | extern void zfs_init(void); | |
199 | extern void zfs_fini(void); | |
200 | ||
6f1ffb06 MA |
201 | uint_t zfs_fsyncer_key; |
202 | extern uint_t rrw_tsd_key; | |
203 | static uint_t zfs_allow_log_key; | |
204 | ||
205 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
206 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
207 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 208 | |
9babb374 BB |
209 | typedef enum { |
210 | NO_NAME, | |
211 | POOL_NAME, | |
212 | DATASET_NAME | |
213 | } zfs_ioc_namecheck_t; | |
214 | ||
572e2857 BB |
215 | typedef enum { |
216 | POOL_CHECK_NONE = 1 << 0, | |
217 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 218 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
219 | } zfs_ioc_poolcheck_t; |
220 | ||
34dc7c2f | 221 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 222 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
223 | zfs_ioc_func_t *zvec_func; |
224 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 225 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 226 | boolean_t zvec_allow_log; |
572e2857 | 227 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
228 | boolean_t zvec_smush_outnvlist; |
229 | const char *zvec_name; | |
34dc7c2f BB |
230 | } zfs_ioc_vec_t; |
231 | ||
9babb374 BB |
232 | /* This array is indexed by zfs_userquota_prop_t */ |
233 | static const char *userquota_perms[] = { | |
234 | ZFS_DELEG_PERM_USERUSED, | |
235 | ZFS_DELEG_PERM_USERQUOTA, | |
236 | ZFS_DELEG_PERM_GROUPUSED, | |
237 | ZFS_DELEG_PERM_GROUPQUOTA, | |
238 | }; | |
239 | ||
240 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
241 | static int zfs_check_settable(const char *name, nvpair_t *property, |
242 | cred_t *cr); | |
243 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
244 | nvlist_t **errors); | |
b128c09f BB |
245 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
246 | boolean_t *); | |
6f1ffb06 MA |
247 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
248 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 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 | ||
efcd79a8 | 264 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); |
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 | /* | |
d3cc8b15 | 294 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
295 | */ |
296 | static int | |
b128c09f | 297 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 298 | { |
34dc7c2f BB |
299 | spa_t *spa; |
300 | ||
301 | if (spa_open(name, &spa, FTAG) == 0) { | |
302 | if (spa_version(spa) < version) { | |
303 | spa_close(spa, FTAG); | |
304 | return (1); | |
305 | } | |
306 | spa_close(spa, FTAG); | |
307 | } | |
308 | return (0); | |
309 | } | |
310 | ||
311 | /* | |
b128c09f | 312 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 313 | */ |
b128c09f BB |
314 | static boolean_t |
315 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
316 | { |
317 | objset_t *os; | |
b128c09f | 318 | boolean_t rc = B_TRUE; |
34dc7c2f | 319 | |
428870ff | 320 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 321 | uint64_t zplversion; |
34dc7c2f | 322 | |
428870ff BB |
323 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
324 | dmu_objset_rele(os, FTAG); | |
325 | return (B_TRUE); | |
326 | } | |
327 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
328 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
329 | rc = zplversion < version; | |
428870ff | 330 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
331 | } |
332 | return (rc); | |
333 | } | |
334 | ||
335 | static void | |
336 | zfs_log_history(zfs_cmd_t *zc) | |
337 | { | |
338 | spa_t *spa; | |
339 | char *buf; | |
340 | ||
341 | if ((buf = history_str_get(zc)) == NULL) | |
342 | return; | |
343 | ||
344 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
345 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 346 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
347 | spa_close(spa, FTAG); |
348 | } | |
349 | history_str_free(buf); | |
350 | } | |
351 | ||
352 | /* | |
353 | * Policy for top-level read operations (list pools). Requires no privileges, | |
354 | * and can be used in the local zone, as there is no associated dataset. | |
355 | */ | |
356 | /* ARGSUSED */ | |
357 | static int | |
6f1ffb06 | 358 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
359 | { |
360 | return (0); | |
361 | } | |
362 | ||
363 | /* | |
364 | * Policy for dataset read operations (list children, get statistics). Requires | |
365 | * no privileges, but must be visible in the local zone. | |
366 | */ | |
367 | /* ARGSUSED */ | |
368 | static int | |
6f1ffb06 | 369 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
370 | { |
371 | if (INGLOBALZONE(curproc) || | |
372 | zone_dataset_visible(zc->zc_name, NULL)) | |
373 | return (0); | |
374 | ||
2e528b49 | 375 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
376 | } |
377 | ||
378 | static int | |
572e2857 | 379 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 380 | { |
34dc7c2f BB |
381 | int writable = 1; |
382 | ||
383 | /* | |
384 | * The dataset must be visible by this zone -- check this first | |
385 | * so they don't see EPERM on something they shouldn't know about. | |
386 | */ | |
387 | if (!INGLOBALZONE(curproc) && | |
388 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 389 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 390 | |
34dc7c2f BB |
391 | if (INGLOBALZONE(curproc)) { |
392 | /* | |
393 | * If the fs is zoned, only root can access it from the | |
394 | * global zone. | |
395 | */ | |
396 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 397 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
398 | } else { |
399 | /* | |
400 | * If we are in a local zone, the 'zoned' property must be set. | |
401 | */ | |
402 | if (!zoned) | |
2e528b49 | 403 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
404 | |
405 | /* must be writable by this zone */ | |
406 | if (!writable) | |
2e528b49 | 407 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
408 | } |
409 | return (0); | |
410 | } | |
411 | ||
572e2857 BB |
412 | static int |
413 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
414 | { | |
415 | uint64_t zoned; | |
416 | ||
417 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 418 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
419 | |
420 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
421 | } | |
422 | ||
423 | static int | |
424 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
425 | { | |
426 | uint64_t zoned; | |
427 | ||
13fe0198 | 428 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 429 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
430 | |
431 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
432 | } | |
433 | ||
6f1ffb06 | 434 | static int |
13fe0198 MA |
435 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
436 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
437 | { |
438 | int error; | |
439 | ||
330d06f9 | 440 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
441 | if (error == 0) { |
442 | error = secpolicy_zfs(cr); | |
13fe0198 | 443 | if (error != 0) |
6f1ffb06 | 444 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
445 | } |
446 | return (error); | |
447 | } | |
448 | ||
6f1ffb06 | 449 | static int |
13fe0198 | 450 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
451 | { |
452 | int error; | |
13fe0198 MA |
453 | dsl_dataset_t *ds; |
454 | dsl_pool_t *dp; | |
572e2857 | 455 | |
13fe0198 MA |
456 | error = dsl_pool_hold(name, FTAG, &dp); |
457 | if (error != 0) | |
458 | return (error); | |
459 | ||
460 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
461 | if (error != 0) { | |
462 | dsl_pool_rele(dp, FTAG); | |
463 | return (error); | |
572e2857 | 464 | } |
13fe0198 MA |
465 | |
466 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
467 | ||
468 | dsl_dataset_rele(ds, FTAG); | |
469 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
470 | return (error); |
471 | } | |
472 | ||
428870ff BB |
473 | /* |
474 | * Policy for setting the security label property. | |
475 | * | |
476 | * Returns 0 for success, non-zero for access and other errors. | |
477 | */ | |
34dc7c2f | 478 | static int |
428870ff | 479 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 480 | { |
d2c15e84 | 481 | #ifdef HAVE_MLSLABEL |
428870ff BB |
482 | char ds_hexsl[MAXNAMELEN]; |
483 | bslabel_t ds_sl, new_sl; | |
484 | boolean_t new_default = FALSE; | |
485 | uint64_t zoned; | |
486 | int needed_priv = -1; | |
487 | int error; | |
488 | ||
489 | /* First get the existing dataset label. */ | |
490 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
491 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 492 | if (error != 0) |
2e528b49 | 493 | return (SET_ERROR(EPERM)); |
428870ff BB |
494 | |
495 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
496 | new_default = TRUE; | |
497 | ||
498 | /* The label must be translatable */ | |
499 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 500 | return (SET_ERROR(EINVAL)); |
428870ff BB |
501 | |
502 | /* | |
503 | * In a non-global zone, disallow attempts to set a label that | |
504 | * doesn't match that of the zone; otherwise no other checks | |
505 | * are needed. | |
506 | */ | |
507 | if (!INGLOBALZONE(curproc)) { | |
508 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 509 | return (SET_ERROR(EPERM)); |
428870ff BB |
510 | return (0); |
511 | } | |
512 | ||
513 | /* | |
514 | * For global-zone datasets (i.e., those whose zoned property is | |
515 | * "off", verify that the specified new label is valid for the | |
516 | * global zone. | |
517 | */ | |
518 | if (dsl_prop_get_integer(name, | |
519 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 520 | return (SET_ERROR(EPERM)); |
428870ff BB |
521 | if (!zoned) { |
522 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 523 | return (SET_ERROR(EPERM)); |
428870ff BB |
524 | } |
525 | ||
526 | /* | |
527 | * If the existing dataset label is nondefault, check if the | |
528 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 529 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
530 | * mounted (or isn't a dataset, doesn't exist, ...). |
531 | */ | |
532 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
533 | objset_t *os; | |
534 | static char *setsl_tag = "setsl_tag"; | |
535 | ||
536 | /* | |
537 | * Try to own the dataset; abort if there is any error, | |
538 | * (e.g., already mounted, in use, or other error). | |
539 | */ | |
540 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
541 | setsl_tag, &os); | |
13fe0198 | 542 | if (error != 0) |
2e528b49 | 543 | return (SET_ERROR(EPERM)); |
428870ff BB |
544 | |
545 | dmu_objset_disown(os, setsl_tag); | |
546 | ||
547 | if (new_default) { | |
548 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
549 | goto out_check; | |
550 | } | |
551 | ||
552 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 553 | return (SET_ERROR(EPERM)); |
428870ff BB |
554 | |
555 | if (blstrictdom(&ds_sl, &new_sl)) | |
556 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
557 | else if (blstrictdom(&new_sl, &ds_sl)) | |
558 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
559 | } else { | |
560 | /* dataset currently has a default label */ | |
561 | if (!new_default) | |
562 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
563 | } | |
564 | ||
565 | out_check: | |
566 | if (needed_priv != -1) | |
567 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
568 | return (0); | |
d2c15e84 | 569 | #else |
d1d7e268 | 570 | return (ENOTSUP); |
d2c15e84 | 571 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
572 | } |
573 | ||
574 | static int | |
575 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
576 | cred_t *cr) | |
577 | { | |
578 | char *strval; | |
579 | ||
34dc7c2f BB |
580 | /* |
581 | * Check permissions for special properties. | |
582 | */ | |
583 | switch (prop) { | |
e75c13c3 BB |
584 | default: |
585 | break; | |
34dc7c2f BB |
586 | case ZFS_PROP_ZONED: |
587 | /* | |
588 | * Disallow setting of 'zoned' from within a local zone. | |
589 | */ | |
590 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 591 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
592 | break; |
593 | ||
594 | case ZFS_PROP_QUOTA: | |
788eb90c JJ |
595 | case ZFS_PROP_FILESYSTEM_LIMIT: |
596 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
34dc7c2f BB |
597 | if (!INGLOBALZONE(curproc)) { |
598 | uint64_t zoned; | |
599 | char setpoint[MAXNAMELEN]; | |
600 | /* | |
601 | * Unprivileged users are allowed to modify the | |
788eb90c | 602 | * limit on things *under* (ie. contained by) |
34dc7c2f BB |
603 | * the thing they own. |
604 | */ | |
428870ff | 605 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 606 | setpoint)) |
2e528b49 | 607 | return (SET_ERROR(EPERM)); |
428870ff | 608 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 609 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
610 | } |
611 | break; | |
428870ff BB |
612 | |
613 | case ZFS_PROP_MLSLABEL: | |
614 | if (!is_system_labeled()) | |
2e528b49 | 615 | return (SET_ERROR(EPERM)); |
428870ff BB |
616 | |
617 | if (nvpair_value_string(propval, &strval) == 0) { | |
618 | int err; | |
619 | ||
620 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
621 | if (err != 0) | |
622 | return (err); | |
623 | } | |
624 | break; | |
34dc7c2f BB |
625 | } |
626 | ||
428870ff | 627 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
628 | } |
629 | ||
6f1ffb06 MA |
630 | /* ARGSUSED */ |
631 | static int | |
632 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
633 | { |
634 | int error; | |
635 | ||
636 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 637 | if (error != 0) |
34dc7c2f BB |
638 | return (error); |
639 | ||
640 | /* | |
641 | * permission to set permissions will be evaluated later in | |
642 | * dsl_deleg_can_allow() | |
643 | */ | |
644 | return (0); | |
645 | } | |
646 | ||
6f1ffb06 MA |
647 | /* ARGSUSED */ |
648 | static int | |
649 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 650 | { |
428870ff BB |
651 | return (zfs_secpolicy_write_perms(zc->zc_name, |
652 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
653 | } |
654 | ||
6f1ffb06 MA |
655 | /* ARGSUSED */ |
656 | static int | |
657 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 658 | { |
572e2857 BB |
659 | dsl_pool_t *dp; |
660 | dsl_dataset_t *ds; | |
661 | char *cp; | |
662 | int error; | |
663 | ||
664 | /* | |
665 | * Generate the current snapshot name from the given objsetid, then | |
666 | * use that name for the secpolicy/zone checks. | |
667 | */ | |
668 | cp = strchr(zc->zc_name, '@'); | |
669 | if (cp == NULL) | |
2e528b49 | 670 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
671 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
672 | if (error != 0) | |
572e2857 BB |
673 | return (error); |
674 | ||
572e2857 | 675 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
676 | if (error != 0) { |
677 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 678 | return (error); |
13fe0198 | 679 | } |
572e2857 BB |
680 | |
681 | dsl_dataset_name(ds, zc->zc_name); | |
682 | ||
683 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
684 | ZFS_DELEG_PERM_SEND, cr); | |
685 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 686 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
687 | |
688 | return (error); | |
34dc7c2f BB |
689 | } |
690 | ||
6f1ffb06 MA |
691 | /* ARGSUSED */ |
692 | static int | |
693 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
694 | { | |
695 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
696 | ZFS_DELEG_PERM_SEND, cr)); | |
697 | } | |
698 | ||
3c9609b3 | 699 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 700 | /* ARGSUSED */ |
9babb374 | 701 | static int |
6f1ffb06 | 702 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
703 | { |
704 | vnode_t *vp; | |
705 | int error; | |
706 | ||
707 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
708 | NO_FOLLOW, NULL, &vp)) != 0) | |
709 | return (error); | |
710 | ||
711 | /* Now make sure mntpnt and dataset are ZFS */ | |
712 | ||
713 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
714 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
715 | zc->zc_name) != 0)) { | |
716 | VN_RELE(vp); | |
2e528b49 | 717 | return (SET_ERROR(EPERM)); |
9babb374 BB |
718 | } |
719 | ||
720 | VN_RELE(vp); | |
721 | return (dsl_deleg_access(zc->zc_name, | |
722 | ZFS_DELEG_PERM_SHARE, cr)); | |
723 | } | |
3c9609b3 | 724 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 725 | |
34dc7c2f | 726 | int |
6f1ffb06 | 727 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 728 | { |
3c9609b3 | 729 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 730 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 731 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
732 | |
733 | if (secpolicy_nfs(cr) == 0) { | |
734 | return (0); | |
735 | } else { | |
6f1ffb06 | 736 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 737 | } |
325f0235 | 738 | #else |
2e528b49 | 739 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 740 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 741 | } |
34dc7c2f | 742 | |
9babb374 | 743 | int |
6f1ffb06 | 744 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 745 | { |
3c9609b3 | 746 | #ifdef HAVE_SMB_SHARE |
9babb374 | 747 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 748 | return (SET_ERROR(EPERM)); |
34dc7c2f | 749 | |
9babb374 BB |
750 | if (secpolicy_smb(cr) == 0) { |
751 | return (0); | |
752 | } else { | |
6f1ffb06 | 753 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 754 | } |
325f0235 | 755 | #else |
2e528b49 | 756 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 757 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
758 | } |
759 | ||
760 | static int | |
761 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
762 | { | |
763 | char *cp; | |
764 | ||
765 | /* | |
766 | * Remove the @bla or /bla from the end of the name to get the parent. | |
767 | */ | |
768 | (void) strncpy(parent, datasetname, parentsize); | |
769 | cp = strrchr(parent, '@'); | |
770 | if (cp != NULL) { | |
771 | cp[0] = '\0'; | |
772 | } else { | |
773 | cp = strrchr(parent, '/'); | |
774 | if (cp == NULL) | |
2e528b49 | 775 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
776 | cp[0] = '\0'; |
777 | } | |
778 | ||
779 | return (0); | |
780 | } | |
781 | ||
782 | int | |
783 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
784 | { | |
785 | int error; | |
786 | ||
787 | if ((error = zfs_secpolicy_write_perms(name, | |
788 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
789 | return (error); | |
790 | ||
791 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
792 | } | |
793 | ||
6f1ffb06 | 794 | /* ARGSUSED */ |
34dc7c2f | 795 | static int |
6f1ffb06 | 796 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
797 | { |
798 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
799 | } | |
800 | ||
801 | /* | |
428870ff | 802 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 803 | * descendant mount and destroy permissions. |
34dc7c2f | 804 | */ |
6f1ffb06 | 805 | /* ARGSUSED */ |
34dc7c2f | 806 | static int |
6f1ffb06 | 807 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 808 | { |
6f1ffb06 MA |
809 | nvlist_t *snaps; |
810 | nvpair_t *pair, *nextpair; | |
811 | int error = 0; | |
428870ff | 812 | |
6f1ffb06 | 813 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 814 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
815 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
816 | pair = nextpair) { | |
6f1ffb06 | 817 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
818 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
819 | if (error == ENOENT) { | |
6f1ffb06 MA |
820 | /* |
821 | * Ignore any snapshots that don't exist (we consider | |
822 | * them "already destroyed"). Remove the name from the | |
823 | * nvl here in case the snapshot is created between | |
824 | * now and when we try to destroy it (in which case | |
825 | * we don't want to destroy it since we haven't | |
826 | * checked for permission). | |
827 | */ | |
828 | fnvlist_remove_nvpair(snaps, pair); | |
829 | error = 0; | |
6f1ffb06 | 830 | } |
6f1ffb06 MA |
831 | if (error != 0) |
832 | break; | |
833 | } | |
428870ff | 834 | |
428870ff | 835 | return (error); |
34dc7c2f BB |
836 | } |
837 | ||
838 | int | |
839 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
840 | { | |
428870ff | 841 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
842 | int error; |
843 | ||
844 | if ((error = zfs_secpolicy_write_perms(from, | |
845 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
846 | return (error); | |
847 | ||
848 | if ((error = zfs_secpolicy_write_perms(from, | |
849 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
850 | return (error); | |
851 | ||
852 | if ((error = zfs_get_parent(to, parentname, | |
853 | sizeof (parentname))) != 0) | |
854 | return (error); | |
855 | ||
856 | if ((error = zfs_secpolicy_write_perms(parentname, | |
857 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
858 | return (error); | |
859 | ||
860 | if ((error = zfs_secpolicy_write_perms(parentname, | |
861 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
862 | return (error); | |
863 | ||
864 | return (error); | |
865 | } | |
866 | ||
6f1ffb06 | 867 | /* ARGSUSED */ |
34dc7c2f | 868 | static int |
6f1ffb06 | 869 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
870 | { |
871 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
872 | } | |
873 | ||
6f1ffb06 | 874 | /* ARGSUSED */ |
34dc7c2f | 875 | static int |
6f1ffb06 | 876 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 877 | { |
13fe0198 MA |
878 | dsl_pool_t *dp; |
879 | dsl_dataset_t *clone; | |
34dc7c2f BB |
880 | int error; |
881 | ||
882 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
883 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
884 | if (error != 0) |
885 | return (error); | |
886 | ||
887 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
888 | if (error != 0) | |
34dc7c2f BB |
889 | return (error); |
890 | ||
13fe0198 | 891 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
892 | |
893 | if (error == 0) { | |
13fe0198 MA |
894 | char parentname[MAXNAMELEN]; |
895 | dsl_dataset_t *origin = NULL; | |
34dc7c2f | 896 | dsl_dir_t *dd; |
13fe0198 | 897 | dd = clone->ds_dir; |
34dc7c2f | 898 | |
b128c09f | 899 | error = dsl_dataset_hold_obj(dd->dd_pool, |
d683ddbb | 900 | dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin); |
13fe0198 MA |
901 | if (error != 0) { |
902 | dsl_dataset_rele(clone, FTAG); | |
903 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
904 | return (error); |
905 | } | |
906 | ||
13fe0198 | 907 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
908 | ZFS_DELEG_PERM_MOUNT, cr); |
909 | ||
13fe0198 MA |
910 | dsl_dataset_name(origin, parentname); |
911 | if (error == 0) { | |
912 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 913 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
914 | } |
915 | dsl_dataset_rele(clone, FTAG); | |
916 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 917 | } |
13fe0198 | 918 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
919 | return (error); |
920 | } | |
921 | ||
6f1ffb06 | 922 | /* ARGSUSED */ |
34dc7c2f | 923 | static int |
6f1ffb06 | 924 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
925 | { |
926 | int error; | |
927 | ||
928 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
929 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
930 | return (error); | |
931 | ||
932 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
933 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
934 | return (error); | |
935 | ||
936 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
937 | ZFS_DELEG_PERM_CREATE, cr)); | |
938 | } | |
939 | ||
940 | int | |
941 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
942 | { | |
428870ff BB |
943 | return (zfs_secpolicy_write_perms(name, |
944 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
945 | } |
946 | ||
6f1ffb06 MA |
947 | /* |
948 | * Check for permission to create each snapshot in the nvlist. | |
949 | */ | |
950 | /* ARGSUSED */ | |
34dc7c2f | 951 | static int |
6f1ffb06 | 952 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 953 | { |
6f1ffb06 MA |
954 | nvlist_t *snaps; |
955 | int error = 0; | |
956 | nvpair_t *pair; | |
957 | ||
958 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 959 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
960 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
961 | pair = nvlist_next_nvpair(snaps, pair)) { | |
962 | char *name = nvpair_name(pair); | |
963 | char *atp = strchr(name, '@'); | |
34dc7c2f | 964 | |
6f1ffb06 | 965 | if (atp == NULL) { |
2e528b49 | 966 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
967 | break; |
968 | } | |
969 | *atp = '\0'; | |
970 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
971 | *atp = '@'; | |
972 | if (error != 0) | |
973 | break; | |
974 | } | |
975 | return (error); | |
976 | } | |
977 | ||
da536844 MA |
978 | /* |
979 | * Check for permission to create each snapshot in the nvlist. | |
980 | */ | |
981 | /* ARGSUSED */ | |
982 | static int | |
983 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
984 | { | |
985 | int error = 0; | |
986 | nvpair_t *pair; | |
987 | ||
988 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
989 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
990 | char *name = nvpair_name(pair); | |
991 | char *hashp = strchr(name, '#'); | |
992 | ||
993 | if (hashp == NULL) { | |
994 | error = SET_ERROR(EINVAL); | |
995 | break; | |
996 | } | |
997 | *hashp = '\0'; | |
998 | error = zfs_secpolicy_write_perms(name, | |
999 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
1000 | *hashp = '#'; | |
1001 | if (error != 0) | |
1002 | break; | |
1003 | } | |
1004 | return (error); | |
1005 | } | |
1006 | ||
1007 | /* ARGSUSED */ | |
1008 | static int | |
1009 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1010 | { | |
1011 | nvpair_t *pair, *nextpair; | |
1012 | int error = 0; | |
1013 | ||
1014 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1015 | pair = nextpair) { | |
1016 | char *name = nvpair_name(pair); | |
1017 | char *hashp = strchr(name, '#'); | |
1018 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1019 | ||
1020 | if (hashp == NULL) { | |
1021 | error = SET_ERROR(EINVAL); | |
1022 | break; | |
1023 | } | |
1024 | ||
1025 | *hashp = '\0'; | |
1026 | error = zfs_secpolicy_write_perms(name, | |
1027 | ZFS_DELEG_PERM_DESTROY, cr); | |
1028 | *hashp = '#'; | |
1029 | if (error == ENOENT) { | |
1030 | /* | |
1031 | * Ignore any filesystems that don't exist (we consider | |
1032 | * their bookmarks "already destroyed"). Remove | |
1033 | * the name from the nvl here in case the filesystem | |
1034 | * is created between now and when we try to destroy | |
1035 | * the bookmark (in which case we don't want to | |
1036 | * destroy it since we haven't checked for permission). | |
1037 | */ | |
1038 | fnvlist_remove_nvpair(innvl, pair); | |
1039 | error = 0; | |
1040 | } | |
1041 | if (error != 0) | |
1042 | break; | |
1043 | } | |
1044 | ||
1045 | return (error); | |
1046 | } | |
1047 | ||
6f1ffb06 MA |
1048 | /* ARGSUSED */ |
1049 | static int | |
1050 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1051 | { | |
1052 | /* | |
1053 | * Even root must have a proper TSD so that we know what pool | |
1054 | * to log to. | |
1055 | */ | |
1056 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1057 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1058 | return (0); |
34dc7c2f BB |
1059 | } |
1060 | ||
1061 | static int | |
6f1ffb06 | 1062 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1063 | { |
428870ff BB |
1064 | char parentname[MAXNAMELEN]; |
1065 | int error; | |
6f1ffb06 | 1066 | char *origin; |
34dc7c2f BB |
1067 | |
1068 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1069 | sizeof (parentname))) != 0) | |
1070 | return (error); | |
1071 | ||
6f1ffb06 MA |
1072 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1073 | (error = zfs_secpolicy_write_perms(origin, | |
1074 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1075 | return (error); | |
34dc7c2f BB |
1076 | |
1077 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1078 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1079 | return (error); | |
1080 | ||
6f1ffb06 MA |
1081 | return (zfs_secpolicy_write_perms(parentname, |
1082 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1083 | } |
1084 | ||
34dc7c2f BB |
1085 | /* |
1086 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1087 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1088 | */ | |
1089 | /* ARGSUSED */ | |
1090 | static int | |
6f1ffb06 | 1091 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1092 | { |
1093 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1094 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1095 | |
1096 | return (0); | |
1097 | } | |
1098 | ||
572e2857 BB |
1099 | /* |
1100 | * Policy for object to name lookups. | |
1101 | */ | |
1102 | /* ARGSUSED */ | |
1103 | static int | |
6f1ffb06 | 1104 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1105 | { |
1106 | int error; | |
1107 | ||
1108 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1109 | return (0); | |
1110 | ||
1111 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1112 | return (error); | |
1113 | } | |
1114 | ||
34dc7c2f BB |
1115 | /* |
1116 | * Policy for fault injection. Requires all privileges. | |
1117 | */ | |
1118 | /* ARGSUSED */ | |
1119 | static int | |
6f1ffb06 | 1120 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1121 | { |
1122 | return (secpolicy_zinject(cr)); | |
1123 | } | |
1124 | ||
6f1ffb06 | 1125 | /* ARGSUSED */ |
34dc7c2f | 1126 | static int |
6f1ffb06 | 1127 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1128 | { |
1129 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1130 | ||
1131 | if (prop == ZPROP_INVAL) { | |
1132 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1133 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1134 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1135 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1136 | } else { | |
428870ff BB |
1137 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1138 | NULL, cr)); | |
34dc7c2f BB |
1139 | } |
1140 | } | |
1141 | ||
9babb374 | 1142 | static int |
6f1ffb06 | 1143 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1144 | { |
6f1ffb06 | 1145 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1146 | if (err) |
1147 | return (err); | |
1148 | ||
1149 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1150 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1151 | |
1152 | if (zc->zc_value[0] == 0) { | |
1153 | /* | |
1154 | * They are asking about a posix uid/gid. If it's | |
1155 | * themself, allow it. | |
1156 | */ | |
1157 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1158 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
1159 | if (zc->zc_guid == crgetuid(cr)) | |
1160 | return (0); | |
1161 | } else { | |
1162 | if (groupmember(zc->zc_guid, cr)) | |
1163 | return (0); | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1168 | userquota_perms[zc->zc_objset_type], cr)); | |
1169 | } | |
1170 | ||
1171 | static int | |
6f1ffb06 | 1172 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1173 | { |
6f1ffb06 | 1174 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1175 | if (err) |
1176 | return (err); | |
1177 | ||
1178 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1179 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1180 | |
1181 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1182 | userquota_perms[zc->zc_objset_type], cr)); | |
1183 | } | |
1184 | ||
6f1ffb06 | 1185 | /* ARGSUSED */ |
9babb374 | 1186 | static int |
6f1ffb06 | 1187 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1188 | { |
428870ff BB |
1189 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1190 | NULL, cr)); | |
9babb374 BB |
1191 | } |
1192 | ||
6f1ffb06 | 1193 | /* ARGSUSED */ |
45d1cae3 | 1194 | static int |
6f1ffb06 | 1195 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1196 | { |
13fe0198 MA |
1197 | nvpair_t *pair; |
1198 | nvlist_t *holds; | |
1199 | int error; | |
1200 | ||
1201 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1202 | if (error != 0) | |
2e528b49 | 1203 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
1204 | |
1205 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1206 | pair = nvlist_next_nvpair(holds, pair)) { | |
1207 | char fsname[MAXNAMELEN]; | |
1208 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1209 | if (error != 0) | |
1210 | return (error); | |
1211 | error = zfs_secpolicy_write_perms(fsname, | |
1212 | ZFS_DELEG_PERM_HOLD, cr); | |
1213 | if (error != 0) | |
1214 | return (error); | |
1215 | } | |
1216 | return (0); | |
45d1cae3 BB |
1217 | } |
1218 | ||
6f1ffb06 | 1219 | /* ARGSUSED */ |
45d1cae3 | 1220 | static int |
6f1ffb06 | 1221 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1222 | { |
13fe0198 MA |
1223 | nvpair_t *pair; |
1224 | int error; | |
1225 | ||
1226 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1227 | pair = nvlist_next_nvpair(innvl, pair)) { | |
1228 | char fsname[MAXNAMELEN]; | |
1229 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1230 | if (error != 0) | |
1231 | return (error); | |
1232 | error = zfs_secpolicy_write_perms(fsname, | |
1233 | ZFS_DELEG_PERM_RELEASE, cr); | |
1234 | if (error != 0) | |
1235 | return (error); | |
1236 | } | |
1237 | return (0); | |
45d1cae3 BB |
1238 | } |
1239 | ||
572e2857 BB |
1240 | /* |
1241 | * Policy for allowing temporary snapshots to be taken or released | |
1242 | */ | |
1243 | static int | |
6f1ffb06 | 1244 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1245 | { |
1246 | /* | |
1247 | * A temporary snapshot is the same as a snapshot, | |
1248 | * hold, destroy and release all rolled into one. | |
1249 | * Delegated diff alone is sufficient that we allow this. | |
1250 | */ | |
1251 | int error; | |
1252 | ||
1253 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1254 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1255 | return (0); | |
1256 | ||
6f1ffb06 | 1257 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1258 | if (error == 0) |
6f1ffb06 | 1259 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1260 | if (error == 0) |
6f1ffb06 | 1261 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1262 | if (error == 0) |
6f1ffb06 | 1263 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1264 | return (error); |
1265 | } | |
1266 | ||
34dc7c2f BB |
1267 | /* |
1268 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1269 | */ | |
1270 | static int | |
9babb374 | 1271 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1272 | { |
1273 | char *packed; | |
1274 | int error; | |
1275 | nvlist_t *list = NULL; | |
1276 | ||
1277 | /* | |
1278 | * Read in and unpack the user-supplied nvlist. | |
1279 | */ | |
1280 | if (size == 0) | |
2e528b49 | 1281 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1282 | |
77aef6f6 | 1283 | packed = vmem_alloc(size, KM_SLEEP); |
34dc7c2f | 1284 | |
9babb374 BB |
1285 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1286 | iflag)) != 0) { | |
77aef6f6 | 1287 | vmem_free(packed, size); |
0de7c552 | 1288 | return (SET_ERROR(EFAULT)); |
34dc7c2f BB |
1289 | } |
1290 | ||
1291 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
77aef6f6 | 1292 | vmem_free(packed, size); |
34dc7c2f BB |
1293 | return (error); |
1294 | } | |
1295 | ||
77aef6f6 | 1296 | vmem_free(packed, size); |
34dc7c2f BB |
1297 | |
1298 | *nvp = list; | |
1299 | return (0); | |
1300 | } | |
1301 | ||
6f1ffb06 MA |
1302 | /* |
1303 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1304 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1305 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1306 | * removed. | |
1307 | */ | |
428870ff | 1308 | static int |
6f1ffb06 | 1309 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1310 | { |
1311 | size_t size; | |
1312 | ||
6f1ffb06 | 1313 | size = fnvlist_size(errors); |
428870ff | 1314 | |
6f1ffb06 | 1315 | if (size > max) { |
428870ff BB |
1316 | nvpair_t *more_errors; |
1317 | int n = 0; | |
1318 | ||
6f1ffb06 | 1319 | if (max < 1024) |
2e528b49 | 1320 | return (SET_ERROR(ENOMEM)); |
428870ff | 1321 | |
6f1ffb06 MA |
1322 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1323 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1324 | |
1325 | do { | |
6f1ffb06 | 1326 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1327 | more_errors); |
6f1ffb06 | 1328 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1329 | n++; |
6f1ffb06 MA |
1330 | size = fnvlist_size(errors); |
1331 | } while (size > max); | |
428870ff | 1332 | |
6f1ffb06 MA |
1333 | fnvlist_remove_nvpair(errors, more_errors); |
1334 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1335 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1336 | } |
1337 | ||
1338 | return (0); | |
1339 | } | |
1340 | ||
34dc7c2f BB |
1341 | static int |
1342 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1343 | { | |
1344 | char *packed = NULL; | |
428870ff | 1345 | int error = 0; |
34dc7c2f | 1346 | size_t size; |
34dc7c2f | 1347 | |
6f1ffb06 | 1348 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1349 | |
1350 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1351 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1352 | } else { |
6f1ffb06 | 1353 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1354 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1355 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1356 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1357 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1358 | } |
1359 | ||
1360 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1361 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1362 | return (error); |
1363 | } | |
1364 | ||
9babb374 | 1365 | static int |
3558fd73 | 1366 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1367 | { |
1368 | objset_t *os; | |
1369 | int error; | |
1370 | ||
428870ff | 1371 | error = dmu_objset_hold(dsname, FTAG, &os); |
13fe0198 | 1372 | if (error != 0) |
9babb374 | 1373 | return (error); |
428870ff BB |
1374 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1375 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1376 | return (SET_ERROR(EINVAL)); |
428870ff | 1377 | } |
9babb374 | 1378 | |
428870ff | 1379 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1380 | *zsbp = dmu_objset_get_user(os); |
2cf7f52b | 1381 | if (*zsbp && (*zsbp)->z_sb) { |
61f218b0 | 1382 | atomic_inc(&((*zsbp)->z_sb->s_active)); |
9babb374 | 1383 | } else { |
2e528b49 | 1384 | error = SET_ERROR(ESRCH); |
9babb374 | 1385 | } |
428870ff BB |
1386 | mutex_exit(&os->os_user_ptr_lock); |
1387 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1388 | return (error); |
1389 | } | |
1390 | ||
1391 | /* | |
3558fd73 | 1392 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1393 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1394 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1395 | * which prevents all inode ops from running. | |
9babb374 BB |
1396 | */ |
1397 | static int | |
3558fd73 | 1398 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1399 | { |
1400 | int error = 0; | |
9babb374 | 1401 | |
3558fd73 | 1402 | if (get_zfs_sb(name, zsbp) != 0) |
0282c413 | 1403 | error = zfs_sb_create(name, NULL, zsbp); |
9babb374 | 1404 | if (error == 0) { |
e16b3fcc | 1405 | rrm_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1406 | RW_READER, tag); |
3558fd73 | 1407 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1408 | /* |
1409 | * XXX we could probably try again, since the unmounting | |
1410 | * thread should be just about to disassociate the | |
831baf06 | 1411 | * objset from the zsb. |
9babb374 | 1412 | */ |
e16b3fcc | 1413 | rrm_exit(&(*zsbp)->z_teardown_lock, tag); |
2e528b49 | 1414 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1415 | } |
1416 | } | |
1417 | return (error); | |
1418 | } | |
1419 | ||
1420 | static void | |
3558fd73 | 1421 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1422 | { |
e16b3fcc | 1423 | rrm_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1424 | |
2cf7f52b BB |
1425 | if (zsb->z_sb) { |
1426 | deactivate_super(zsb->z_sb); | |
9babb374 | 1427 | } else { |
3558fd73 BB |
1428 | dmu_objset_disown(zsb->z_os, zsb); |
1429 | zfs_sb_free(zsb); | |
9babb374 BB |
1430 | } |
1431 | } | |
1432 | ||
34dc7c2f BB |
1433 | static int |
1434 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1435 | { | |
1436 | int error; | |
1437 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1438 | nvlist_t *rootprops = NULL; |
1439 | nvlist_t *zplprops = NULL; | |
34dc7c2f | 1440 | |
c65aa5b2 BB |
1441 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1442 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1443 | return (error); |
1444 | ||
1445 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1446 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1447 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1448 | nvlist_free(config); |
1449 | return (error); | |
1450 | } | |
1451 | ||
b128c09f BB |
1452 | if (props) { |
1453 | nvlist_t *nvl = NULL; | |
1454 | uint64_t version = SPA_VERSION; | |
1455 | ||
1456 | (void) nvlist_lookup_uint64(props, | |
1457 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1458 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1459 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1460 | goto pool_props_bad; |
1461 | } | |
1462 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1463 | if (nvl) { | |
1464 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1465 | if (error != 0) { | |
1466 | nvlist_free(config); | |
1467 | nvlist_free(props); | |
1468 | return (error); | |
1469 | } | |
1470 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1471 | } | |
1472 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1473 | error = zfs_fill_zplprops_root(version, rootprops, | |
1474 | zplprops, NULL); | |
13fe0198 | 1475 | if (error != 0) |
b128c09f BB |
1476 | goto pool_props_bad; |
1477 | } | |
1478 | ||
6f1ffb06 | 1479 | error = spa_create(zc->zc_name, config, props, zplprops); |
b128c09f BB |
1480 | |
1481 | /* | |
1482 | * Set the remaining root properties | |
1483 | */ | |
428870ff BB |
1484 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1485 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1486 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1487 | |
b128c09f BB |
1488 | pool_props_bad: |
1489 | nvlist_free(rootprops); | |
1490 | nvlist_free(zplprops); | |
34dc7c2f | 1491 | nvlist_free(config); |
b128c09f | 1492 | nvlist_free(props); |
34dc7c2f BB |
1493 | |
1494 | return (error); | |
1495 | } | |
1496 | ||
1497 | static int | |
1498 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1499 | { | |
1500 | int error; | |
1501 | zfs_log_history(zc); | |
1502 | error = spa_destroy(zc->zc_name); | |
a0bd735a | 1503 | |
34dc7c2f BB |
1504 | return (error); |
1505 | } | |
1506 | ||
1507 | static int | |
1508 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1509 | { | |
34dc7c2f BB |
1510 | nvlist_t *config, *props = NULL; |
1511 | uint64_t guid; | |
428870ff | 1512 | int error; |
34dc7c2f BB |
1513 | |
1514 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1515 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1516 | return (error); |
1517 | ||
1518 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1519 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1520 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1521 | nvlist_free(config); |
1522 | return (error); | |
1523 | } | |
1524 | ||
1525 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1526 | guid != zc->zc_guid) | |
2e528b49 | 1527 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1528 | else |
572e2857 | 1529 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1530 | |
572e2857 BB |
1531 | if (zc->zc_nvlist_dst != 0) { |
1532 | int err; | |
1533 | ||
1534 | if ((err = put_nvlist(zc, config)) != 0) | |
1535 | error = err; | |
1536 | } | |
428870ff | 1537 | |
34dc7c2f BB |
1538 | nvlist_free(config); |
1539 | ||
1540 | if (props) | |
1541 | nvlist_free(props); | |
1542 | ||
1543 | return (error); | |
1544 | } | |
1545 | ||
1546 | static int | |
1547 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1548 | { | |
1549 | int error; | |
b128c09f | 1550 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1551 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1552 | |
34dc7c2f | 1553 | zfs_log_history(zc); |
fb5f0bc8 | 1554 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
a0bd735a | 1555 | |
34dc7c2f BB |
1556 | return (error); |
1557 | } | |
1558 | ||
1559 | static int | |
1560 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1561 | { | |
1562 | nvlist_t *configs; | |
1563 | int error; | |
1564 | ||
1565 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1566 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1567 | |
1568 | error = put_nvlist(zc, configs); | |
1569 | ||
1570 | nvlist_free(configs); | |
1571 | ||
1572 | return (error); | |
1573 | } | |
1574 | ||
9ae529ec CS |
1575 | /* |
1576 | * inputs: | |
1577 | * zc_name name of the pool | |
1578 | * | |
1579 | * outputs: | |
1580 | * zc_cookie real errno | |
1581 | * zc_nvlist_dst config nvlist | |
1582 | * zc_nvlist_dst_size size of config nvlist | |
1583 | */ | |
34dc7c2f BB |
1584 | static int |
1585 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1586 | { | |
1587 | nvlist_t *config; | |
1588 | int error; | |
1589 | int ret = 0; | |
1590 | ||
1591 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1592 | sizeof (zc->zc_value)); | |
1593 | ||
1594 | if (config != NULL) { | |
1595 | ret = put_nvlist(zc, config); | |
1596 | nvlist_free(config); | |
1597 | ||
1598 | /* | |
1599 | * The config may be present even if 'error' is non-zero. | |
1600 | * In this case we return success, and preserve the real errno | |
1601 | * in 'zc_cookie'. | |
1602 | */ | |
1603 | zc->zc_cookie = error; | |
1604 | } else { | |
1605 | ret = error; | |
1606 | } | |
1607 | ||
1608 | return (ret); | |
1609 | } | |
1610 | ||
1611 | /* | |
1612 | * Try to import the given pool, returning pool stats as appropriate so that | |
1613 | * user land knows which devices are available and overall pool health. | |
1614 | */ | |
1615 | static int | |
1616 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1617 | { | |
1618 | nvlist_t *tryconfig, *config; | |
1619 | int error; | |
1620 | ||
1621 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1622 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1623 | return (error); |
1624 | ||
1625 | config = spa_tryimport(tryconfig); | |
1626 | ||
1627 | nvlist_free(tryconfig); | |
1628 | ||
1629 | if (config == NULL) | |
2e528b49 | 1630 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1631 | |
1632 | error = put_nvlist(zc, config); | |
1633 | nvlist_free(config); | |
1634 | ||
1635 | return (error); | |
1636 | } | |
1637 | ||
428870ff BB |
1638 | /* |
1639 | * inputs: | |
1640 | * zc_name name of the pool | |
1641 | * zc_cookie scan func (pool_scan_func_t) | |
1642 | */ | |
34dc7c2f | 1643 | static int |
428870ff | 1644 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1645 | { |
1646 | spa_t *spa; | |
1647 | int error; | |
1648 | ||
1649 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1650 | return (error); | |
1651 | ||
428870ff BB |
1652 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1653 | error = spa_scan_stop(spa); | |
1654 | else | |
1655 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1656 | |
1657 | spa_close(spa, FTAG); | |
1658 | ||
1659 | return (error); | |
1660 | } | |
1661 | ||
1662 | static int | |
1663 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1664 | { | |
1665 | spa_t *spa; | |
1666 | int error; | |
1667 | ||
1668 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1669 | if (error == 0) { | |
1670 | spa_freeze(spa); | |
1671 | spa_close(spa, FTAG); | |
1672 | } | |
1673 | return (error); | |
1674 | } | |
1675 | ||
1676 | static int | |
1677 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1678 | { | |
1679 | spa_t *spa; | |
1680 | int error; | |
1681 | ||
1682 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1683 | return (error); | |
1684 | ||
9ae529ec CS |
1685 | if (zc->zc_cookie < spa_version(spa) || |
1686 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1687 | spa_close(spa, FTAG); |
2e528b49 | 1688 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1689 | } |
1690 | ||
1691 | spa_upgrade(spa, zc->zc_cookie); | |
1692 | spa_close(spa, FTAG); | |
1693 | ||
1694 | return (error); | |
1695 | } | |
1696 | ||
1697 | static int | |
1698 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1699 | { | |
1700 | spa_t *spa; | |
1701 | char *hist_buf; | |
1702 | uint64_t size; | |
1703 | int error; | |
1704 | ||
1705 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1706 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1707 | |
1708 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1709 | return (error); | |
1710 | ||
1711 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1712 | spa_close(spa, FTAG); | |
2e528b49 | 1713 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1714 | } |
1715 | ||
34b84cb8 | 1716 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1717 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1718 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1719 | error = ddi_copyout(hist_buf, |
1720 | (void *)(uintptr_t)zc->zc_history, | |
1721 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1722 | } |
1723 | ||
1724 | spa_close(spa, FTAG); | |
34b84cb8 | 1725 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1726 | return (error); |
1727 | } | |
1728 | ||
3541dc6d GA |
1729 | static int |
1730 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1731 | { | |
1732 | spa_t *spa; | |
1733 | int error; | |
1734 | ||
1735 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1736 | if (error == 0) { | |
1737 | error = spa_change_guid(spa); | |
1738 | spa_close(spa, FTAG); | |
1739 | } | |
1740 | return (error); | |
1741 | } | |
1742 | ||
34dc7c2f BB |
1743 | static int |
1744 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1745 | { | |
13fe0198 | 1746 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1747 | } |
1748 | ||
428870ff BB |
1749 | /* |
1750 | * inputs: | |
1751 | * zc_name name of filesystem | |
1752 | * zc_obj object to find | |
1753 | * | |
1754 | * outputs: | |
1755 | * zc_value name of object | |
1756 | */ | |
34dc7c2f BB |
1757 | static int |
1758 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1759 | { | |
428870ff | 1760 | objset_t *os; |
34dc7c2f BB |
1761 | int error; |
1762 | ||
428870ff BB |
1763 | /* XXX reading from objset not owned */ |
1764 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1765 | return (error); |
428870ff BB |
1766 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1767 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1768 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1769 | } |
1770 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1771 | sizeof (zc->zc_value)); |
428870ff | 1772 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1773 | |
1774 | return (error); | |
1775 | } | |
1776 | ||
572e2857 BB |
1777 | /* |
1778 | * inputs: | |
1779 | * zc_name name of filesystem | |
1780 | * zc_obj object to find | |
1781 | * | |
1782 | * outputs: | |
1783 | * zc_stat stats on object | |
1784 | * zc_value path to object | |
1785 | */ | |
1786 | static int | |
1787 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1788 | { | |
1789 | objset_t *os; | |
1790 | int error; | |
1791 | ||
1792 | /* XXX reading from objset not owned */ | |
1793 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1794 | return (error); | |
1795 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1796 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1797 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1798 | } |
1799 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1800 | sizeof (zc->zc_value)); | |
1801 | dmu_objset_rele(os, FTAG); | |
1802 | ||
1803 | return (error); | |
1804 | } | |
1805 | ||
34dc7c2f BB |
1806 | static int |
1807 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1808 | { | |
1809 | spa_t *spa; | |
1810 | int error; | |
64ad2b26 | 1811 | nvlist_t *config; |
34dc7c2f BB |
1812 | |
1813 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1814 | if (error != 0) | |
1815 | return (error); | |
1816 | ||
1817 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1818 | zc->zc_iflags, &config); |
34dc7c2f BB |
1819 | if (error == 0) { |
1820 | error = spa_vdev_add(spa, config); | |
1821 | nvlist_free(config); | |
1822 | } | |
1823 | spa_close(spa, FTAG); | |
1824 | return (error); | |
1825 | } | |
1826 | ||
428870ff BB |
1827 | /* |
1828 | * inputs: | |
1829 | * zc_name name of the pool | |
1830 | * zc_nvlist_conf nvlist of devices to remove | |
1831 | * zc_cookie to stop the remove? | |
1832 | */ | |
34dc7c2f BB |
1833 | static int |
1834 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1835 | { | |
1836 | spa_t *spa; | |
1837 | int error; | |
1838 | ||
1839 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1840 | if (error != 0) | |
1841 | return (error); | |
1842 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1843 | spa_close(spa, FTAG); | |
1844 | return (error); | |
1845 | } | |
1846 | ||
1847 | static int | |
1848 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1849 | { | |
1850 | spa_t *spa; | |
1851 | int error; | |
1852 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1853 | ||
1854 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1855 | return (error); | |
1856 | switch (zc->zc_cookie) { | |
1857 | case VDEV_STATE_ONLINE: | |
1858 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1859 | break; | |
1860 | ||
1861 | case VDEV_STATE_OFFLINE: | |
1862 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1863 | break; | |
1864 | ||
1865 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1866 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1867 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1868 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1869 | ||
1870 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1871 | break; |
1872 | ||
1873 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1874 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1875 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1876 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1877 | ||
1878 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1879 | break; |
1880 | ||
1881 | default: | |
2e528b49 | 1882 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
1883 | } |
1884 | zc->zc_cookie = newstate; | |
1885 | spa_close(spa, FTAG); | |
1886 | return (error); | |
1887 | } | |
1888 | ||
1889 | static int | |
1890 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1891 | { | |
1892 | spa_t *spa; | |
1893 | int replacing = zc->zc_cookie; | |
1894 | nvlist_t *config; | |
1895 | int error; | |
1896 | ||
1897 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1898 | return (error); | |
1899 | ||
1900 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1901 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1902 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1903 | nvlist_free(config); | |
1904 | } | |
1905 | ||
1906 | spa_close(spa, FTAG); | |
1907 | return (error); | |
1908 | } | |
1909 | ||
1910 | static int | |
1911 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1912 | { | |
1913 | spa_t *spa; | |
1914 | int error; | |
1915 | ||
1916 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1917 | return (error); | |
1918 | ||
fb5f0bc8 | 1919 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1920 | |
1921 | spa_close(spa, FTAG); | |
1922 | return (error); | |
1923 | } | |
1924 | ||
428870ff BB |
1925 | static int |
1926 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1927 | { | |
1928 | spa_t *spa; | |
1929 | nvlist_t *config, *props = NULL; | |
1930 | int error; | |
1931 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1932 | ||
1933 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1934 | return (error); | |
1935 | ||
c65aa5b2 BB |
1936 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1937 | zc->zc_iflags, &config))) { | |
428870ff BB |
1938 | spa_close(spa, FTAG); |
1939 | return (error); | |
1940 | } | |
1941 | ||
1942 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1943 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1944 | zc->zc_iflags, &props))) { | |
1945 | spa_close(spa, FTAG); | |
1946 | nvlist_free(config); | |
1947 | return (error); | |
1948 | } | |
1949 | ||
1950 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1951 | ||
1952 | spa_close(spa, FTAG); | |
1953 | ||
1954 | nvlist_free(config); | |
1955 | nvlist_free(props); | |
1956 | ||
1957 | return (error); | |
1958 | } | |
1959 | ||
34dc7c2f BB |
1960 | static int |
1961 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1962 | { | |
1963 | spa_t *spa; | |
1964 | char *path = zc->zc_value; | |
1965 | uint64_t guid = zc->zc_guid; | |
1966 | int error; | |
1967 | ||
1968 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1969 | if (error != 0) | |
1970 | return (error); | |
1971 | ||
1972 | error = spa_vdev_setpath(spa, guid, path); | |
1973 | spa_close(spa, FTAG); | |
1974 | return (error); | |
1975 | } | |
1976 | ||
9babb374 BB |
1977 | static int |
1978 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1979 | { | |
1980 | spa_t *spa; | |
1981 | char *fru = zc->zc_value; | |
1982 | uint64_t guid = zc->zc_guid; | |
1983 | int error; | |
1984 | ||
1985 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1986 | if (error != 0) | |
1987 | return (error); | |
1988 | ||
1989 | error = spa_vdev_setfru(spa, guid, fru); | |
1990 | spa_close(spa, FTAG); | |
1991 | return (error); | |
1992 | } | |
1993 | ||
34dc7c2f | 1994 | static int |
572e2857 | 1995 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 1996 | { |
572e2857 | 1997 | int error = 0; |
34dc7c2f BB |
1998 | nvlist_t *nv; |
1999 | ||
34dc7c2f BB |
2000 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2001 | ||
2002 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2003 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2004 | dmu_objset_stats(os, nv); |
2005 | /* | |
2006 | * NB: zvol_get_stats() will read the objset contents, | |
2007 | * which we aren't supposed to do with a | |
b128c09f | 2008 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2009 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2010 | * XXX reading with out owning |
34dc7c2f | 2011 | */ |
330d06f9 MA |
2012 | if (!zc->zc_objset_stats.dds_inconsistent && |
2013 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2014 | error = zvol_get_stats(os, nv); | |
2015 | if (error == EIO) | |
2016 | return (error); | |
c99c9001 | 2017 | VERIFY0(error); |
34dc7c2f | 2018 | } |
8a8f5c6b BB |
2019 | if (error == 0) |
2020 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2021 | nvlist_free(nv); |
2022 | } | |
2023 | ||
572e2857 BB |
2024 | return (error); |
2025 | } | |
2026 | ||
2027 | /* | |
2028 | * inputs: | |
2029 | * zc_name name of filesystem | |
2030 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2031 | * | |
2032 | * outputs: | |
2033 | * zc_objset_stats stats | |
2034 | * zc_nvlist_dst property nvlist | |
2035 | * zc_nvlist_dst_size size of property nvlist | |
2036 | */ | |
2037 | static int | |
2038 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2039 | { | |
13fe0198 | 2040 | objset_t *os; |
572e2857 BB |
2041 | int error; |
2042 | ||
13fe0198 MA |
2043 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2044 | if (error == 0) { | |
2045 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2046 | dmu_objset_rele(os, FTAG); | |
2047 | } | |
572e2857 | 2048 | |
428870ff BB |
2049 | return (error); |
2050 | } | |
2051 | ||
2052 | /* | |
2053 | * inputs: | |
2054 | * zc_name name of filesystem | |
2055 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2056 | * | |
2057 | * outputs: | |
2058 | * zc_nvlist_dst received property nvlist | |
2059 | * zc_nvlist_dst_size size of received property nvlist | |
2060 | * | |
2061 | * Gets received properties (distinct from local properties on or after | |
2062 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2063 | * local property values. | |
2064 | */ | |
2065 | static int | |
26685276 | 2066 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2067 | { |
13fe0198 | 2068 | int error = 0; |
428870ff BB |
2069 | nvlist_t *nv; |
2070 | ||
428870ff BB |
2071 | /* |
2072 | * Without this check, we would return local property values if the | |
2073 | * caller has not already received properties on or after | |
2074 | * SPA_VERSION_RECVD_PROPS. | |
2075 | */ | |
13fe0198 | 2076 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2077 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2078 | |
2079 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2080 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2081 | error = put_nvlist(zc, nv); |
2082 | nvlist_free(nv); | |
2083 | } | |
2084 | ||
34dc7c2f BB |
2085 | return (error); |
2086 | } | |
2087 | ||
2088 | static int | |
2089 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2090 | { | |
2091 | uint64_t value; | |
2092 | int error; | |
2093 | ||
2094 | /* | |
2095 | * zfs_get_zplprop() will either find a value or give us | |
2096 | * the default value (if there is one). | |
2097 | */ | |
2098 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2099 | return (error); | |
2100 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2101 | return (0); | |
2102 | } | |
2103 | ||
2104 | /* | |
2105 | * inputs: | |
2106 | * zc_name name of filesystem | |
2107 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2108 | * | |
2109 | * outputs: | |
2110 | * zc_nvlist_dst zpl property nvlist | |
2111 | * zc_nvlist_dst_size size of zpl property nvlist | |
2112 | */ | |
2113 | static int | |
2114 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2115 | { | |
2116 | objset_t *os; | |
2117 | int err; | |
2118 | ||
428870ff | 2119 | /* XXX reading without owning */ |
c65aa5b2 | 2120 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2121 | return (err); |
2122 | ||
2123 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2124 | ||
2125 | /* | |
2126 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2127 | * which we aren't supposed to do with a DS_MODE_USER |
2128 | * hold, because it could be inconsistent. | |
34dc7c2f | 2129 | */ |
b8864a23 | 2130 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2131 | !zc->zc_objset_stats.dds_inconsistent && |
2132 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2133 | nvlist_t *nv; | |
2134 | ||
2135 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2136 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2137 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2138 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2139 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2140 | err = put_nvlist(zc, nv); | |
2141 | nvlist_free(nv); | |
2142 | } else { | |
2e528b49 | 2143 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2144 | } |
428870ff | 2145 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2146 | return (err); |
2147 | } | |
2148 | ||
ba6a2402 | 2149 | boolean_t |
9babb374 BB |
2150 | dataset_name_hidden(const char *name) |
2151 | { | |
2152 | /* | |
2153 | * Skip over datasets that are not visible in this zone, | |
2154 | * internal datasets (which have a $ in their name), and | |
2155 | * temporary datasets (which have a % in their name). | |
2156 | */ | |
2157 | if (strchr(name, '$') != NULL) | |
2158 | return (B_TRUE); | |
2159 | if (strchr(name, '%') != NULL) | |
2160 | return (B_TRUE); | |
2161 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2162 | return (B_TRUE); | |
2163 | return (B_FALSE); | |
2164 | } | |
2165 | ||
34dc7c2f BB |
2166 | /* |
2167 | * inputs: | |
2168 | * zc_name name of filesystem | |
2169 | * zc_cookie zap cursor | |
2170 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2171 | * | |
2172 | * outputs: | |
2173 | * zc_name name of next filesystem | |
9babb374 | 2174 | * zc_cookie zap cursor |
34dc7c2f BB |
2175 | * zc_objset_stats stats |
2176 | * zc_nvlist_dst property nvlist | |
2177 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2178 | */ |
2179 | static int | |
2180 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2181 | { | |
2182 | objset_t *os; | |
2183 | int error; | |
2184 | char *p; | |
428870ff | 2185 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2186 | |
428870ff | 2187 | top: |
c65aa5b2 | 2188 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2189 | if (error == ENOENT) |
2e528b49 | 2190 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2191 | return (error); |
2192 | } | |
2193 | ||
2194 | p = strrchr(zc->zc_name, '/'); | |
2195 | if (p == NULL || p[1] != '\0') | |
2196 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2197 | p = zc->zc_name + strlen(zc->zc_name); | |
2198 | ||
2199 | do { | |
2200 | error = dmu_dir_list_next(os, | |
2201 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2202 | NULL, &zc->zc_cookie); | |
2203 | if (error == ENOENT) | |
2e528b49 | 2204 | error = SET_ERROR(ESRCH); |
330d06f9 | 2205 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2206 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2207 | |
428870ff BB |
2208 | /* |
2209 | * If it's an internal dataset (ie. with a '$' in its name), | |
2210 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2211 | */ | |
2212 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2213 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2214 | if (error == ENOENT) { |
2215 | /* We lost a race with destroy, get the next one. */ | |
2216 | zc->zc_name[orig_len] = '\0'; | |
2217 | goto top; | |
2218 | } | |
2219 | } | |
34dc7c2f BB |
2220 | return (error); |
2221 | } | |
2222 | ||
2223 | /* | |
2224 | * inputs: | |
2225 | * zc_name name of filesystem | |
2226 | * zc_cookie zap cursor | |
2227 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2228 | * | |
2229 | * outputs: | |
2230 | * zc_name name of next snapshot | |
2231 | * zc_objset_stats stats | |
2232 | * zc_nvlist_dst property nvlist | |
2233 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2234 | */ |
2235 | static int | |
2236 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2237 | { | |
2238 | objset_t *os; | |
2239 | int error; | |
2240 | ||
428870ff | 2241 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2242 | if (error != 0) { |
b128c09f | 2243 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2244 | } |
34dc7c2f BB |
2245 | |
2246 | /* | |
2247 | * A dataset name of maximum length cannot have any snapshots, | |
2248 | * so exit immediately. | |
2249 | */ | |
2250 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2251 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2252 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2253 | } |
2254 | ||
2255 | error = dmu_snapshot_list_next(os, | |
2256 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2257 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2258 | NULL); | |
2259 | ||
0cee2406 | 2260 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2261 | dsl_dataset_t *ds; |
2262 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2263 | ||
572e2857 | 2264 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2265 | if (error == 0) { |
572e2857 BB |
2266 | objset_t *ossnap; |
2267 | ||
2268 | error = dmu_objset_from_ds(ds, &ossnap); | |
2269 | if (error == 0) | |
2270 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2271 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2272 | } |
2273 | } else if (error == ENOENT) { | |
2e528b49 | 2274 | error = SET_ERROR(ESRCH); |
428870ff | 2275 | } |
34dc7c2f | 2276 | |
572e2857 | 2277 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2278 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2279 | if (error != 0) |
34dc7c2f | 2280 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2281 | return (error); |
2282 | } | |
2283 | ||
428870ff BB |
2284 | static int |
2285 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2286 | { |
428870ff BB |
2287 | const char *propname = nvpair_name(pair); |
2288 | uint64_t *valary; | |
2289 | unsigned int vallen; | |
2290 | const char *domain; | |
2291 | char *dash; | |
2292 | zfs_userquota_prop_t type; | |
2293 | uint64_t rid; | |
2294 | uint64_t quota; | |
3558fd73 | 2295 | zfs_sb_t *zsb; |
428870ff BB |
2296 | int err; |
2297 | ||
2298 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2299 | nvlist_t *attrs; | |
2300 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2301 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2302 | &pair) != 0) | |
2e528b49 | 2303 | return (SET_ERROR(EINVAL)); |
428870ff | 2304 | } |
34dc7c2f BB |
2305 | |
2306 | /* | |
428870ff BB |
2307 | * A correctly constructed propname is encoded as |
2308 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2309 | */ |
428870ff BB |
2310 | if ((dash = strchr(propname, '-')) == NULL || |
2311 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2312 | vallen != 3) | |
2e528b49 | 2313 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2314 | |
428870ff BB |
2315 | domain = dash + 1; |
2316 | type = valary[0]; | |
2317 | rid = valary[1]; | |
2318 | quota = valary[2]; | |
34dc7c2f | 2319 | |
3558fd73 | 2320 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2321 | if (err == 0) { |
3558fd73 BB |
2322 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2323 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2324 | } |
9babb374 | 2325 | |
428870ff BB |
2326 | return (err); |
2327 | } | |
34dc7c2f | 2328 | |
428870ff BB |
2329 | /* |
2330 | * If the named property is one that has a special function to set its value, | |
2331 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2332 | * not one of the special properties handled by this function, return -1. | |
2333 | * | |
2334 | * XXX: It would be better for callers of the property interface if we handled | |
2335 | * these special cases in dsl_prop.c (in the dsl layer). | |
2336 | */ | |
2337 | static int | |
2338 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2339 | nvpair_t *pair) | |
2340 | { | |
2341 | const char *propname = nvpair_name(pair); | |
2342 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2343 | uint64_t intval; | |
f1512ee6 | 2344 | int err = -1; |
9babb374 | 2345 | |
428870ff BB |
2346 | if (prop == ZPROP_INVAL) { |
2347 | if (zfs_prop_userquota(propname)) | |
2348 | return (zfs_prop_set_userquota(dsname, pair)); | |
2349 | return (-1); | |
2350 | } | |
34dc7c2f | 2351 | |
428870ff BB |
2352 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2353 | nvlist_t *attrs; | |
2354 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2355 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2356 | &pair) == 0); | |
2357 | } | |
b128c09f | 2358 | |
428870ff BB |
2359 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2360 | return (-1); | |
34dc7c2f | 2361 | |
428870ff | 2362 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2363 | |
428870ff BB |
2364 | switch (prop) { |
2365 | case ZFS_PROP_QUOTA: | |
2366 | err = dsl_dir_set_quota(dsname, source, intval); | |
2367 | break; | |
2368 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2369 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff | 2370 | break; |
788eb90c JJ |
2371 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2372 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2373 | if (intval == UINT64_MAX) { | |
2374 | /* clearing the limit, just do it */ | |
2375 | err = 0; | |
2376 | } else { | |
2377 | err = dsl_dir_activate_fs_ss_limit(dsname); | |
2378 | } | |
2379 | /* | |
2380 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2381 | * default path to set the value in the nvlist. | |
2382 | */ | |
2383 | if (err == 0) | |
2384 | err = -1; | |
2385 | break; | |
428870ff BB |
2386 | case ZFS_PROP_RESERVATION: |
2387 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2388 | break; | |
2389 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2390 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2391 | break; |
2392 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2393 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2394 | break; |
0b4d1b58 | 2395 | case ZFS_PROP_SNAPDEV: |
a0bd735a | 2396 | err = zvol_set_snapdev(dsname, source, intval); |
0b4d1b58 | 2397 | break; |
428870ff BB |
2398 | case ZFS_PROP_VERSION: |
2399 | { | |
3558fd73 | 2400 | zfs_sb_t *zsb; |
428870ff | 2401 | |
3558fd73 | 2402 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2403 | break; |
b128c09f | 2404 | |
3558fd73 BB |
2405 | err = zfs_set_version(zsb, intval); |
2406 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2407 | |
428870ff BB |
2408 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2409 | zfs_cmd_t *zc; | |
34dc7c2f | 2410 | |
efcd79a8 | 2411 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
428870ff BB |
2412 | (void) strcpy(zc->zc_name, dsname); |
2413 | (void) zfs_ioc_userspace_upgrade(zc); | |
2414 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2415 | } |
428870ff BB |
2416 | break; |
2417 | } | |
428870ff BB |
2418 | default: |
2419 | err = -1; | |
2420 | } | |
34dc7c2f | 2421 | |
428870ff BB |
2422 | return (err); |
2423 | } | |
34dc7c2f | 2424 | |
428870ff BB |
2425 | /* |
2426 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2427 | * it continues to set as many as it can and returns the last error |
2428 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2429 | * with the list of names of all the properties that failed along with the | |
2430 | * corresponding error numbers. | |
428870ff | 2431 | * |
6f1ffb06 MA |
2432 | * If every property is set successfully, zero is returned and errlist is not |
2433 | * modified. | |
428870ff BB |
2434 | */ |
2435 | int | |
2436 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2437 | nvlist_t *errlist) |
428870ff BB |
2438 | { |
2439 | nvpair_t *pair; | |
2440 | nvpair_t *propval; | |
2441 | int rv = 0; | |
2442 | uint64_t intval; | |
2443 | char *strval; | |
34dc7c2f | 2444 | |
6f1ffb06 MA |
2445 | nvlist_t *genericnvl = fnvlist_alloc(); |
2446 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2447 | retry: |
2448 | pair = NULL; | |
2449 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2450 | const char *propname = nvpair_name(pair); | |
2451 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2452 | int err = 0; | |
2453 | ||
2454 | /* decode the property value */ | |
2455 | propval = pair; | |
2456 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2457 | nvlist_t *attrs; | |
6f1ffb06 | 2458 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2459 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2460 | &propval) != 0) | |
2e528b49 | 2461 | err = SET_ERROR(EINVAL); |
9babb374 | 2462 | } |
34dc7c2f | 2463 | |
428870ff BB |
2464 | /* Validate value type */ |
2465 | if (err == 0 && prop == ZPROP_INVAL) { | |
2466 | if (zfs_prop_user(propname)) { | |
2467 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2468 | err = SET_ERROR(EINVAL); |
428870ff BB |
2469 | } else if (zfs_prop_userquota(propname)) { |
2470 | if (nvpair_type(propval) != | |
2471 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2472 | err = SET_ERROR(EINVAL); |
330d06f9 | 2473 | } else { |
2e528b49 | 2474 | err = SET_ERROR(EINVAL); |
428870ff BB |
2475 | } |
2476 | } else if (err == 0) { | |
2477 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2478 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2479 | err = SET_ERROR(EINVAL); |
428870ff | 2480 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2481 | const char *unused; |
2482 | ||
6f1ffb06 | 2483 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2484 | |
2485 | switch (zfs_prop_get_type(prop)) { | |
2486 | case PROP_TYPE_NUMBER: | |
2487 | break; | |
2488 | case PROP_TYPE_STRING: | |
2e528b49 | 2489 | err = SET_ERROR(EINVAL); |
428870ff | 2490 | break; |
34dc7c2f BB |
2491 | case PROP_TYPE_INDEX: |
2492 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2493 | intval, &unused) != 0) |
2e528b49 | 2494 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2495 | break; |
2496 | default: | |
2497 | cmn_err(CE_PANIC, | |
2498 | "unknown property type"); | |
34dc7c2f | 2499 | } |
34dc7c2f | 2500 | } else { |
2e528b49 | 2501 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2502 | } |
34dc7c2f | 2503 | } |
428870ff BB |
2504 | |
2505 | /* Validate permissions */ | |
2506 | if (err == 0) | |
2507 | err = zfs_check_settable(dsname, pair, CRED()); | |
2508 | ||
2509 | if (err == 0) { | |
2510 | err = zfs_prop_set_special(dsname, source, pair); | |
2511 | if (err == -1) { | |
2512 | /* | |
2513 | * For better performance we build up a list of | |
2514 | * properties to set in a single transaction. | |
2515 | */ | |
2516 | err = nvlist_add_nvpair(genericnvl, pair); | |
2517 | } else if (err != 0 && nvl != retrynvl) { | |
2518 | /* | |
2519 | * This may be a spurious error caused by | |
2520 | * receiving quota and reservation out of order. | |
2521 | * Try again in a second pass. | |
2522 | */ | |
2523 | err = nvlist_add_nvpair(retrynvl, pair); | |
2524 | } | |
2525 | } | |
2526 | ||
6f1ffb06 MA |
2527 | if (err != 0) { |
2528 | if (errlist != NULL) | |
2529 | fnvlist_add_int32(errlist, propname, err); | |
2530 | rv = err; | |
2531 | } | |
34dc7c2f BB |
2532 | } |
2533 | ||
428870ff BB |
2534 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2535 | nvl = retrynvl; | |
2536 | goto retry; | |
2537 | } | |
2538 | ||
2539 | if (!nvlist_empty(genericnvl) && | |
2540 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2541 | /* | |
2542 | * If this fails, we still want to set as many properties as we | |
2543 | * can, so try setting them individually. | |
2544 | */ | |
2545 | pair = NULL; | |
2546 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2547 | const char *propname = nvpair_name(pair); | |
2548 | int err = 0; | |
2549 | ||
2550 | propval = pair; | |
2551 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2552 | nvlist_t *attrs; | |
6f1ffb06 MA |
2553 | attrs = fnvpair_value_nvlist(pair); |
2554 | propval = fnvlist_lookup_nvpair(attrs, | |
2555 | ZPROP_VALUE); | |
428870ff BB |
2556 | } |
2557 | ||
2558 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2559 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2560 | err = dsl_prop_set_string(dsname, propname, |
2561 | source, strval); | |
428870ff | 2562 | } else { |
6f1ffb06 | 2563 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2564 | err = dsl_prop_set_int(dsname, propname, source, |
2565 | intval); | |
428870ff BB |
2566 | } |
2567 | ||
2568 | if (err != 0) { | |
6f1ffb06 MA |
2569 | if (errlist != NULL) { |
2570 | fnvlist_add_int32(errlist, propname, | |
2571 | err); | |
2572 | } | |
2573 | rv = err; | |
428870ff BB |
2574 | } |
2575 | } | |
9babb374 | 2576 | } |
9babb374 | 2577 | nvlist_free(genericnvl); |
428870ff BB |
2578 | nvlist_free(retrynvl); |
2579 | ||
428870ff | 2580 | return (rv); |
9babb374 BB |
2581 | } |
2582 | ||
2583 | /* | |
2584 | * Check that all the properties are valid user properties. | |
2585 | */ | |
2586 | static int | |
6f1ffb06 | 2587 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2588 | { |
428870ff | 2589 | nvpair_t *pair = NULL; |
9babb374 BB |
2590 | int error = 0; |
2591 | ||
428870ff BB |
2592 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2593 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2594 | |
2595 | if (!zfs_prop_user(propname) || | |
428870ff | 2596 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2597 | return (SET_ERROR(EINVAL)); |
9babb374 | 2598 | |
c65aa5b2 BB |
2599 | if ((error = zfs_secpolicy_write_perms(fsname, |
2600 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2601 | return (error); |
2602 | ||
2603 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2604 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2605 | |
da536844 | 2606 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2607 | return (SET_ERROR(E2BIG)); |
9babb374 | 2608 | } |
34dc7c2f BB |
2609 | return (0); |
2610 | } | |
2611 | ||
428870ff BB |
2612 | static void |
2613 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2614 | { | |
2615 | nvpair_t *pair; | |
2616 | ||
2617 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2618 | ||
2619 | pair = NULL; | |
2620 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2621 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2622 | continue; | |
2623 | ||
2624 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2625 | } | |
2626 | } | |
2627 | ||
2628 | static int | |
13fe0198 | 2629 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2630 | nvlist_t *skipped) |
2631 | { | |
2632 | int err = 0; | |
2633 | nvlist_t *cleared_props = NULL; | |
2634 | props_skip(props, skipped, &cleared_props); | |
2635 | if (!nvlist_empty(cleared_props)) { | |
2636 | /* | |
2637 | * Acts on local properties until the dataset has received | |
2638 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2639 | */ | |
2640 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2641 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2642 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2643 | } |
2644 | nvlist_free(cleared_props); | |
2645 | return (err); | |
2646 | } | |
2647 | ||
34dc7c2f BB |
2648 | /* |
2649 | * inputs: | |
2650 | * zc_name name of filesystem | |
9babb374 | 2651 | * zc_value name of property to set |
34dc7c2f | 2652 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2653 | * zc_cookie received properties flag |
34dc7c2f | 2654 | * |
428870ff BB |
2655 | * outputs: |
2656 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2657 | */ |
2658 | static int | |
2659 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2660 | { | |
2661 | nvlist_t *nvl; | |
428870ff BB |
2662 | boolean_t received = zc->zc_cookie; |
2663 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2664 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2665 | nvlist_t *errors; |
34dc7c2f BB |
2666 | int error; |
2667 | ||
2668 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2669 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2670 | return (error); |
2671 | ||
428870ff | 2672 | if (received) { |
b128c09f | 2673 | nvlist_t *origprops; |
b128c09f | 2674 | |
13fe0198 MA |
2675 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2676 | (void) clear_received_props(zc->zc_name, | |
2677 | origprops, nvl); | |
2678 | nvlist_free(origprops); | |
428870ff | 2679 | } |
13fe0198 MA |
2680 | |
2681 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2682 | } |
2683 | ||
6f1ffb06 | 2684 | errors = fnvlist_alloc(); |
13fe0198 MA |
2685 | if (error == 0) |
2686 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2687 | |
b8864a23 | 2688 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2689 | (void) put_nvlist(zc, errors); |
2690 | } | |
2691 | ||
2692 | nvlist_free(errors); | |
34dc7c2f BB |
2693 | nvlist_free(nvl); |
2694 | return (error); | |
2695 | } | |
2696 | ||
2697 | /* | |
2698 | * inputs: | |
2699 | * zc_name name of filesystem | |
2700 | * zc_value name of property to inherit | |
428870ff | 2701 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2702 | * |
2703 | * outputs: none | |
2704 | */ | |
2705 | static int | |
2706 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2707 | { | |
428870ff BB |
2708 | const char *propname = zc->zc_value; |
2709 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2710 | boolean_t received = zc->zc_cookie; | |
2711 | zprop_source_t source = (received | |
2712 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2713 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2714 | ||
2715 | if (received) { | |
2716 | nvlist_t *dummy; | |
2717 | nvpair_t *pair; | |
2718 | zprop_type_t type; | |
2719 | int err; | |
2720 | ||
2721 | /* | |
2722 | * zfs_prop_set_special() expects properties in the form of an | |
2723 | * nvpair with type info. | |
2724 | */ | |
2725 | if (prop == ZPROP_INVAL) { | |
2726 | if (!zfs_prop_user(propname)) | |
2e528b49 | 2727 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2728 | |
2729 | type = PROP_TYPE_STRING; | |
2730 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2731 | prop == ZFS_PROP_VERSION) { | |
2e528b49 | 2732 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2733 | } else { |
2734 | type = zfs_prop_get_type(prop); | |
2735 | } | |
2736 | ||
2737 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2738 | ||
2739 | switch (type) { | |
2740 | case PROP_TYPE_STRING: | |
2741 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2742 | break; | |
2743 | case PROP_TYPE_NUMBER: | |
2744 | case PROP_TYPE_INDEX: | |
2745 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2746 | break; | |
2747 | default: | |
2748 | nvlist_free(dummy); | |
2e528b49 | 2749 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2750 | } |
2751 | ||
2752 | pair = nvlist_next_nvpair(dummy, NULL); | |
2753 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2754 | nvlist_free(dummy); | |
2755 | if (err != -1) | |
2756 | return (err); /* special property already handled */ | |
2757 | } else { | |
2758 | /* | |
2759 | * Only check this in the non-received case. We want to allow | |
2760 | * 'inherit -S' to revert non-inheritable properties like quota | |
2761 | * and reservation to the received or default values even though | |
2762 | * they are not considered inheritable. | |
2763 | */ | |
2764 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2e528b49 | 2765 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2766 | } |
2767 | ||
6f1ffb06 | 2768 | /* property name has been validated by zfs_secpolicy_inherit_prop() */ |
13fe0198 | 2769 | return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); |
34dc7c2f BB |
2770 | } |
2771 | ||
2772 | static int | |
2773 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2774 | { | |
2775 | nvlist_t *props; | |
2776 | spa_t *spa; | |
2777 | int error; | |
428870ff | 2778 | nvpair_t *pair; |
34dc7c2f | 2779 | |
c65aa5b2 BB |
2780 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2781 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2782 | return (error); |
2783 | ||
d164b209 BB |
2784 | /* |
2785 | * If the only property is the configfile, then just do a spa_lookup() | |
2786 | * to handle the faulted case. | |
2787 | */ | |
428870ff BB |
2788 | pair = nvlist_next_nvpair(props, NULL); |
2789 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2790 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2791 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2792 | mutex_enter(&spa_namespace_lock); |
2793 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2794 | spa_configfile_set(spa, props, B_FALSE); | |
2795 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2796 | } | |
2797 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2798 | if (spa != NULL) { |
2799 | nvlist_free(props); | |
d164b209 | 2800 | return (0); |
428870ff | 2801 | } |
d164b209 BB |
2802 | } |
2803 | ||
34dc7c2f BB |
2804 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2805 | nvlist_free(props); | |
2806 | return (error); | |
2807 | } | |
2808 | ||
2809 | error = spa_prop_set(spa, props); | |
2810 | ||
2811 | nvlist_free(props); | |
2812 | spa_close(spa, FTAG); | |
2813 | ||
2814 | return (error); | |
2815 | } | |
2816 | ||
2817 | static int | |
2818 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2819 | { | |
2820 | spa_t *spa; | |
2821 | int error; | |
2822 | nvlist_t *nvp = NULL; | |
2823 | ||
d164b209 BB |
2824 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2825 | /* | |
2826 | * If the pool is faulted, there may be properties we can still | |
2827 | * get (such as altroot and cachefile), so attempt to get them | |
2828 | * anyway. | |
2829 | */ | |
2830 | mutex_enter(&spa_namespace_lock); | |
2831 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2832 | error = spa_prop_get(spa, &nvp); | |
2833 | mutex_exit(&spa_namespace_lock); | |
2834 | } else { | |
2835 | error = spa_prop_get(spa, &nvp); | |
2836 | spa_close(spa, FTAG); | |
2837 | } | |
34dc7c2f | 2838 | |
b8864a23 | 2839 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2840 | error = put_nvlist(zc, nvp); |
2841 | else | |
2e528b49 | 2842 | error = SET_ERROR(EFAULT); |
34dc7c2f | 2843 | |
d164b209 | 2844 | nvlist_free(nvp); |
34dc7c2f BB |
2845 | return (error); |
2846 | } | |
2847 | ||
34dc7c2f BB |
2848 | /* |
2849 | * inputs: | |
2850 | * zc_name name of filesystem | |
2851 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2852 | * zc_perm_action allow/unallow flag | |
2853 | * | |
2854 | * outputs: none | |
2855 | */ | |
2856 | static int | |
2857 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2858 | { | |
2859 | int error; | |
2860 | nvlist_t *fsaclnv = NULL; | |
2861 | ||
2862 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2863 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2864 | return (error); |
2865 | ||
2866 | /* | |
2867 | * Verify nvlist is constructed correctly | |
2868 | */ | |
2869 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2870 | nvlist_free(fsaclnv); | |
2e528b49 | 2871 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
2872 | } |
2873 | ||
2874 | /* | |
2875 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2876 | * that user is allowed to hand out each permission in | |
2877 | * the nvlist(s) | |
2878 | */ | |
2879 | ||
2880 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 2881 | if (error != 0) { |
34dc7c2f BB |
2882 | if (zc->zc_perm_action == B_FALSE) { |
2883 | error = dsl_deleg_can_allow(zc->zc_name, | |
2884 | fsaclnv, CRED()); | |
2885 | } else { | |
2886 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2887 | fsaclnv, CRED()); | |
2888 | } | |
2889 | } | |
2890 | ||
2891 | if (error == 0) | |
2892 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2893 | ||
2894 | nvlist_free(fsaclnv); | |
2895 | return (error); | |
2896 | } | |
2897 | ||
2898 | /* | |
2899 | * inputs: | |
2900 | * zc_name name of filesystem | |
2901 | * | |
2902 | * outputs: | |
2903 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2904 | */ | |
2905 | static int | |
2906 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2907 | { | |
2908 | nvlist_t *nvp; | |
2909 | int error; | |
2910 | ||
2911 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2912 | error = put_nvlist(zc, nvp); | |
2913 | nvlist_free(nvp); | |
2914 | } | |
2915 | ||
2916 | return (error); | |
2917 | } | |
2918 | ||
34dc7c2f BB |
2919 | /* ARGSUSED */ |
2920 | static void | |
2921 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2922 | { | |
2923 | zfs_creat_t *zct = arg; | |
2924 | ||
2925 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2926 | } | |
2927 | ||
2928 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2929 | ||
2930 | /* | |
2931 | * inputs: | |
b128c09f | 2932 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
2933 | * fuids_ok fuids allowed in this version of the spa? |
2934 | * sa_ok SAs allowed in this version of the spa? | |
2935 | * createprops list of properties requested by creator | |
34dc7c2f BB |
2936 | * |
2937 | * outputs: | |
2938 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2939 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2940 | * |
2941 | * Determine the settings for utf8only, normalization and | |
2942 | * casesensitivity. Specific values may have been requested by the | |
2943 | * creator and/or we can inherit values from the parent dataset. If | |
2944 | * the file system is of too early a vintage, a creator can not | |
2945 | * request settings for these properties, even if the requested | |
2946 | * setting is the default value. We don't actually want to create dsl | |
2947 | * properties for these, so remove them from the source nvlist after | |
2948 | * processing. | |
2949 | */ | |
2950 | static int | |
9babb374 | 2951 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2952 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2953 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2954 | { |
34dc7c2f BB |
2955 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2956 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2957 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2958 | int error; |
34dc7c2f BB |
2959 | |
2960 | ASSERT(zplprops != NULL); | |
2961 | ||
34dc7c2f BB |
2962 | /* |
2963 | * Pull out creator prop choices, if any. | |
2964 | */ | |
2965 | if (createprops) { | |
b128c09f BB |
2966 | (void) nvlist_lookup_uint64(createprops, |
2967 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2968 | (void) nvlist_lookup_uint64(createprops, |
2969 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2970 | (void) nvlist_remove_all(createprops, | |
2971 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2972 | (void) nvlist_lookup_uint64(createprops, | |
2973 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2974 | (void) nvlist_remove_all(createprops, | |
2975 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2976 | (void) nvlist_lookup_uint64(createprops, | |
2977 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2978 | (void) nvlist_remove_all(createprops, | |
2979 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2980 | } | |
2981 | ||
2982 | /* | |
b128c09f BB |
2983 | * If the zpl version requested is whacky or the file system |
2984 | * or pool is version is too "young" to support normalization | |
2985 | * and the creator tried to set a value for one of the props, | |
2986 | * error out. | |
34dc7c2f | 2987 | */ |
b128c09f BB |
2988 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
2989 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 2990 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 2991 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 2992 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 2993 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 2994 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
2995 | |
2996 | /* | |
2997 | * Put the version in the zplprops | |
2998 | */ | |
2999 | VERIFY(nvlist_add_uint64(zplprops, | |
3000 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3001 | ||
b129c659 MM |
3002 | if (norm == ZFS_PROP_UNDEFINED && |
3003 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3004 | return (error); | |
34dc7c2f BB |
3005 | VERIFY(nvlist_add_uint64(zplprops, |
3006 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3007 | ||
3008 | /* | |
3009 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3010 | */ | |
3011 | if (norm) | |
3012 | u8 = 1; | |
b129c659 MM |
3013 | if (u8 == ZFS_PROP_UNDEFINED && |
3014 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3015 | return (error); | |
34dc7c2f BB |
3016 | VERIFY(nvlist_add_uint64(zplprops, |
3017 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3018 | ||
b129c659 MM |
3019 | if (sense == ZFS_PROP_UNDEFINED && |
3020 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3021 | return (error); | |
34dc7c2f BB |
3022 | VERIFY(nvlist_add_uint64(zplprops, |
3023 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3024 | ||
3025 | if (is_ci) | |
3026 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3027 | ||
34dc7c2f BB |
3028 | return (0); |
3029 | } | |
3030 | ||
b128c09f BB |
3031 | static int |
3032 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3033 | nvlist_t *zplprops, boolean_t *is_ci) | |
3034 | { | |
428870ff | 3035 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3036 | uint64_t zplver = ZPL_VERSION; |
3037 | objset_t *os = NULL; | |
3038 | char parentname[MAXNAMELEN]; | |
3039 | char *cp; | |
428870ff BB |
3040 | spa_t *spa; |
3041 | uint64_t spa_vers; | |
b128c09f BB |
3042 | int error; |
3043 | ||
3044 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3045 | cp = strrchr(parentname, '/'); | |
3046 | ASSERT(cp != NULL); | |
3047 | cp[0] = '\0'; | |
3048 | ||
428870ff BB |
3049 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3050 | return (error); | |
3051 | ||
3052 | spa_vers = spa_version(spa); | |
3053 | spa_close(spa, FTAG); | |
3054 | ||
3055 | zplver = zfs_zpl_version_map(spa_vers); | |
3056 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3057 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3058 | |
3059 | /* | |
3060 | * Open parent object set so we can inherit zplprop values. | |
3061 | */ | |
428870ff | 3062 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3063 | return (error); |
3064 | ||
428870ff | 3065 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3066 | zplprops, is_ci); |
428870ff | 3067 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3068 | return (error); |
3069 | } | |
3070 | ||
3071 | static int | |
3072 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3073 | nvlist_t *zplprops, boolean_t *is_ci) | |
3074 | { | |
428870ff BB |
3075 | boolean_t fuids_ok; |
3076 | boolean_t sa_ok; | |
b128c09f BB |
3077 | uint64_t zplver = ZPL_VERSION; |
3078 | int error; | |
3079 | ||
428870ff BB |
3080 | zplver = zfs_zpl_version_map(spa_vers); |
3081 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3082 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3083 | |
428870ff BB |
3084 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3085 | createprops, zplprops, is_ci); | |
b128c09f BB |
3086 | return (error); |
3087 | } | |
3088 | ||
34dc7c2f | 3089 | /* |
6f1ffb06 MA |
3090 | * innvl: { |
3091 | * "type" -> dmu_objset_type_t (int32) | |
3092 | * (optional) "props" -> { prop -> value } | |
3093 | * } | |
34dc7c2f | 3094 | * |
6f1ffb06 | 3095 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3096 | */ |
3097 | static int | |
6f1ffb06 | 3098 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3099 | { |
34dc7c2f | 3100 | int error = 0; |
6f1ffb06 | 3101 | zfs_creat_t zct = { 0 }; |
34dc7c2f BB |
3102 | nvlist_t *nvprops = NULL; |
3103 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
6f1ffb06 MA |
3104 | int32_t type32; |
3105 | dmu_objset_type_t type; | |
3106 | boolean_t is_insensitive = B_FALSE; | |
34dc7c2f | 3107 | |
6f1ffb06 | 3108 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
2e528b49 | 3109 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3110 | type = type32; |
3111 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
34dc7c2f | 3112 | |
6f1ffb06 | 3113 | switch (type) { |
34dc7c2f BB |
3114 | case DMU_OST_ZFS: |
3115 | cbfunc = zfs_create_cb; | |
3116 | break; | |
3117 | ||
3118 | case DMU_OST_ZVOL: | |
3119 | cbfunc = zvol_create_cb; | |
3120 | break; | |
3121 | ||
3122 | default: | |
3123 | cbfunc = NULL; | |
3124 | break; | |
3125 | } | |
6f1ffb06 MA |
3126 | if (strchr(fsname, '@') || |
3127 | strchr(fsname, '%')) | |
2e528b49 | 3128 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3129 | |
34dc7c2f BB |
3130 | zct.zct_props = nvprops; |
3131 | ||
6f1ffb06 | 3132 | if (cbfunc == NULL) |
2e528b49 | 3133 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3134 | |
6f1ffb06 MA |
3135 | if (type == DMU_OST_ZVOL) { |
3136 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3137 | |
6f1ffb06 | 3138 | if (nvprops == NULL) |
2e528b49 | 3139 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3140 | if (nvlist_lookup_uint64(nvprops, |
3141 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3142 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3143 | |
6f1ffb06 MA |
3144 | if ((error = nvlist_lookup_uint64(nvprops, |
3145 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3146 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3147 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3148 | |
6f1ffb06 MA |
3149 | if (error != 0) |
3150 | volblocksize = zfs_prop_default_numeric( | |
3151 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3152 | |
4cb7b9c5 | 3153 | if ((error = zvol_check_volblocksize(fsname, |
6f1ffb06 MA |
3154 | volblocksize)) != 0 || |
3155 | (error = zvol_check_volsize(volsize, | |
3156 | volblocksize)) != 0) | |
3157 | return (error); | |
3158 | } else if (type == DMU_OST_ZFS) { | |
3159 | int error; | |
34dc7c2f | 3160 | |
6f1ffb06 MA |
3161 | /* |
3162 | * We have to have normalization and | |
3163 | * case-folding flags correct when we do the | |
3164 | * file system creation, so go figure them out | |
3165 | * now. | |
3166 | */ | |
3167 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3168 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3169 | error = zfs_fill_zplprops(fsname, nvprops, | |
3170 | zct.zct_zplprops, &is_insensitive); | |
3171 | if (error != 0) { | |
3172 | nvlist_free(zct.zct_zplprops); | |
3173 | return (error); | |
34dc7c2f | 3174 | } |
34dc7c2f BB |
3175 | } |
3176 | ||
6f1ffb06 MA |
3177 | error = dmu_objset_create(fsname, type, |
3178 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); | |
3179 | nvlist_free(zct.zct_zplprops); | |
3180 | ||
34dc7c2f BB |
3181 | /* |
3182 | * It would be nice to do this atomically. | |
3183 | */ | |
3184 | if (error == 0) { | |
6f1ffb06 MA |
3185 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3186 | nvprops, outnvl); | |
428870ff | 3187 | if (error != 0) |
13fe0198 | 3188 | (void) dsl_destroy_head(fsname); |
34dc7c2f | 3189 | } |
34dc7c2f BB |
3190 | return (error); |
3191 | } | |
3192 | ||
3193 | /* | |
6f1ffb06 MA |
3194 | * innvl: { |
3195 | * "origin" -> name of origin snapshot | |
3196 | * (optional) "props" -> { prop -> value } | |
3197 | * } | |
34dc7c2f | 3198 | * |
428870ff | 3199 | * outputs: |
6f1ffb06 | 3200 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3201 | */ |
3202 | static int | |
6f1ffb06 | 3203 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3204 | { |
6f1ffb06 | 3205 | int error = 0; |
b128c09f | 3206 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3207 | char *origin_name; |
b128c09f | 3208 | |
6f1ffb06 | 3209 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
2e528b49 | 3210 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3211 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3212 | |
6f1ffb06 MA |
3213 | if (strchr(fsname, '@') || |
3214 | strchr(fsname, '%')) | |
2e528b49 | 3215 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3216 | |
3217 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3218 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
3219 | error = dmu_objset_clone(fsname, origin_name); |
3220 | if (error != 0) | |
6f1ffb06 | 3221 | return (error); |
b128c09f | 3222 | |
6f1ffb06 MA |
3223 | /* |
3224 | * It would be nice to do this atomically. | |
3225 | */ | |
3226 | if (error == 0) { | |
3227 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3228 | nvprops, outnvl); | |
3229 | if (error != 0) | |
13fe0198 | 3230 | (void) dsl_destroy_head(fsname); |
b128c09f | 3231 | } |
6f1ffb06 MA |
3232 | return (error); |
3233 | } | |
9babb374 | 3234 | |
6f1ffb06 MA |
3235 | /* |
3236 | * innvl: { | |
3237 | * "snaps" -> { snapshot1, snapshot2 } | |
3238 | * (optional) "props" -> { prop -> value (string) } | |
3239 | * } | |
3240 | * | |
3241 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3242 | */ |
3243 | static int | |
3244 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3245 | { | |
3246 | nvlist_t *snaps; | |
3247 | nvlist_t *props = NULL; | |
3248 | int error, poollen; | |
3249 | nvpair_t *pair, *pair2; | |
9babb374 | 3250 | |
6f1ffb06 MA |
3251 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3252 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3253 | return (error); | |
3254 | ||
3255 | if (!nvlist_empty(props) && | |
3256 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3257 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3258 | |
3259 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 3260 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3261 | poollen = strlen(poolname); |
3262 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3263 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3264 | const char *name = nvpair_name(pair); | |
3265 | const char *cp = strchr(name, '@'); | |
3266 | ||
3267 | /* | |
3268 | * The snap name must contain an @, and the part after it must | |
3269 | * contain only valid characters. | |
3270 | */ | |
da536844 MA |
3271 | if (cp == NULL || |
3272 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3273 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3274 | |
3275 | /* | |
3276 | * The snap must be in the specified pool. | |
3277 | */ | |
3278 | if (strncmp(name, poolname, poollen) != 0 || | |
3279 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3280 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3281 | |
3282 | /* This must be the only snap of this fs. */ | |
3283 | for (pair2 = nvlist_next_nvpair(snaps, pair); | |
3284 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { | |
3285 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3286 | == 0) { | |
2e528b49 | 3287 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3288 | } |
3289 | } | |
3290 | } | |
3291 | ||
13fe0198 | 3292 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 | 3293 | |
6f1ffb06 MA |
3294 | return (error); |
3295 | } | |
3296 | ||
3297 | /* | |
3298 | * innvl: "message" -> string | |
3299 | */ | |
3300 | /* ARGSUSED */ | |
3301 | static int | |
3302 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3303 | { | |
3304 | char *message; | |
3305 | spa_t *spa; | |
3306 | int error; | |
3307 | char *poolname; | |
3308 | ||
3309 | /* | |
3310 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3311 | * which was set at the end of the last successful ioctl that allows | |
3312 | * logging. The secpolicy func already checked that it is set. | |
3313 | * Only one log ioctl is allowed after each successful ioctl, so | |
3314 | * we clear the TSD here. | |
3315 | */ | |
3316 | poolname = tsd_get(zfs_allow_log_key); | |
3317 | (void) tsd_set(zfs_allow_log_key, NULL); | |
3318 | error = spa_open(poolname, &spa, FTAG); | |
3319 | strfree(poolname); | |
3320 | if (error != 0) | |
3321 | return (error); | |
3322 | ||
3323 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3324 | spa_close(spa, FTAG); | |
2e528b49 | 3325 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3326 | } |
3327 | ||
3328 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3329 | spa_close(spa, FTAG); | |
2e528b49 | 3330 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3331 | } |
3332 | ||
3333 | error = spa_history_log(spa, message); | |
3334 | spa_close(spa, FTAG); | |
b128c09f | 3335 | return (error); |
34dc7c2f BB |
3336 | } |
3337 | ||
ebe7e575 | 3338 | /* |
13fe0198 MA |
3339 | * The dp_config_rwlock must not be held when calling this, because the |
3340 | * unmount may need to write out data. | |
3341 | * | |
3342 | * This function is best-effort. Callers must deal gracefully if it | |
3343 | * remains mounted (or is remounted after this call). | |
d09f25dc | 3344 | * |
278bee93 BB |
3345 | * Returns 0 if the argument is not a snapshot, or it is not currently a |
3346 | * filesystem, or we were able to unmount it. Returns error code otherwise. | |
ebe7e575 | 3347 | */ |
d09f25dc | 3348 | int |
13fe0198 | 3349 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3350 | { |
278bee93 | 3351 | int err; |
34dc7c2f | 3352 | |
278bee93 | 3353 | if (strchr(snapname, '@') == NULL) |
d09f25dc | 3354 | return (0); |
34dc7c2f | 3355 | |
278bee93 BB |
3356 | err = zfsctl_snapshot_unmount((char *)snapname, MNT_FORCE); |
3357 | if (err != 0 && err != ENOENT) | |
3358 | return (SET_ERROR(err)); | |
ebe7e575 | 3359 | |
d09f25dc | 3360 | return (0); |
13fe0198 MA |
3361 | } |
3362 | ||
3363 | /* ARGSUSED */ | |
3364 | static int | |
3365 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3366 | { | |
d09f25dc | 3367 | return (zfs_unmount_snap(snapname)); |
13fe0198 MA |
3368 | } |
3369 | ||
3370 | /* | |
3371 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3372 | * in which case it must be unmounted. This routine will do that unmount | |
3373 | * if necessary. | |
3374 | */ | |
3375 | void | |
3376 | zfs_destroy_unmount_origin(const char *fsname) | |
3377 | { | |
3378 | int error; | |
3379 | objset_t *os; | |
3380 | dsl_dataset_t *ds; | |
3381 | ||
3382 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3383 | if (error != 0) | |
3384 | return; | |
3385 | ds = dmu_objset_ds(os); | |
3386 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
3387 | char originname[MAXNAMELEN]; | |
3388 | dsl_dataset_name(ds->ds_prev, originname); | |
3389 | dmu_objset_rele(os, FTAG); | |
d09f25dc | 3390 | (void) zfs_unmount_snap(originname); |
13fe0198 MA |
3391 | } else { |
3392 | dmu_objset_rele(os, FTAG); | |
3393 | } | |
34dc7c2f BB |
3394 | } |
3395 | ||
3396 | /* | |
6f1ffb06 MA |
3397 | * innvl: { |
3398 | * "snaps" -> { snapshot1, snapshot2 } | |
3399 | * (optional boolean) "defer" | |
3400 | * } | |
34dc7c2f | 3401 | * |
6f1ffb06 | 3402 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3403 | */ |
da536844 | 3404 | /* ARGSUSED */ |
34dc7c2f | 3405 | static int |
6f1ffb06 | 3406 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3407 | { |
6f1ffb06 | 3408 | nvlist_t *snaps; |
330d06f9 | 3409 | nvpair_t *pair; |
6f1ffb06 | 3410 | boolean_t defer; |
34dc7c2f | 3411 | |
6f1ffb06 | 3412 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 3413 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3414 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3415 | |
6f1ffb06 MA |
3416 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3417 | pair = nvlist_next_nvpair(snaps, pair)) { | |
da536844 | 3418 | (void) zfs_unmount_snap(nvpair_name(pair)); |
da536844 MA |
3419 | } |
3420 | ||
3421 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3422 | } | |
3423 | ||
3424 | /* | |
3425 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3426 | * All bookmarks must be in the same pool. | |
3427 | * | |
3428 | * innvl: { | |
3429 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3430 | * } | |
3431 | * | |
3432 | * outnvl: bookmark -> error code (int32) | |
3433 | * | |
3434 | */ | |
3435 | /* ARGSUSED */ | |
3436 | static int | |
3437 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3438 | { | |
3439 | nvpair_t *pair, *pair2; | |
3440 | ||
3441 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3442 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
3443 | char *snap_name; | |
3444 | ||
3445 | /* | |
3446 | * Verify the snapshot argument. | |
3447 | */ | |
3448 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3449 | return (SET_ERROR(EINVAL)); | |
3450 | ||
3451 | ||
3452 | /* Verify that the keys (bookmarks) are unique */ | |
3453 | for (pair2 = nvlist_next_nvpair(innvl, pair); | |
3454 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { | |
3455 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3456 | return (SET_ERROR(EINVAL)); | |
3457 | } | |
3458 | } | |
3459 | ||
3460 | return (dsl_bookmark_create(innvl, outnvl)); | |
3461 | } | |
3462 | ||
3463 | /* | |
3464 | * innvl: { | |
3465 | * property 1, property 2, ... | |
3466 | * } | |
3467 | * | |
3468 | * outnvl: { | |
3469 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3470 | * bookmark name 2 -> { property 1, property 2, ... } | |
3471 | * } | |
3472 | * | |
3473 | */ | |
3474 | static int | |
3475 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3476 | { | |
3477 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3478 | } | |
3479 | ||
3480 | /* | |
3481 | * innvl: { | |
3482 | * bookmark name 1, bookmark name 2 | |
3483 | * } | |
3484 | * | |
3485 | * outnvl: bookmark -> error code (int32) | |
3486 | * | |
3487 | */ | |
3488 | static int | |
3489 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3490 | nvlist_t *outnvl) | |
3491 | { | |
3492 | int error, poollen; | |
3493 | nvpair_t *pair; | |
3494 | ||
3495 | poollen = strlen(poolname); | |
3496 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3497 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
330d06f9 | 3498 | const char *name = nvpair_name(pair); |
da536844 | 3499 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3500 | |
330d06f9 | 3501 | /* |
da536844 MA |
3502 | * The bookmark name must contain an #, and the part after it |
3503 | * must contain only valid characters. | |
3504 | */ | |
3505 | if (cp == NULL || | |
3506 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3507 | return (SET_ERROR(EINVAL)); | |
3508 | ||
3509 | /* | |
3510 | * The bookmark must be in the specified pool. | |
330d06f9 | 3511 | */ |
6f1ffb06 | 3512 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3513 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3514 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3515 | } |
3516 | ||
da536844 MA |
3517 | error = dsl_bookmark_destroy(innvl, outnvl); |
3518 | return (error); | |
34dc7c2f BB |
3519 | } |
3520 | ||
3521 | /* | |
3522 | * inputs: | |
3523 | * zc_name name of dataset to destroy | |
3524 | * zc_objset_type type of objset | |
45d1cae3 | 3525 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3526 | * |
3527 | * outputs: none | |
3528 | */ | |
3529 | static int | |
3530 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3531 | { | |
428870ff | 3532 | int err; |
d09f25dc WA |
3533 | |
3534 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
3535 | err = zfs_unmount_snap(zc->zc_name); | |
3536 | if (err != 0) | |
3537 | return (err); | |
3538 | } | |
34dc7c2f | 3539 | |
13fe0198 MA |
3540 | if (strchr(zc->zc_name, '@')) |
3541 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); | |
3542 | else | |
3543 | err = dsl_destroy_head(zc->zc_name); | |
a0bd735a | 3544 | |
428870ff | 3545 | return (err); |
34dc7c2f BB |
3546 | } |
3547 | ||
3548 | /* | |
46ba1e59 | 3549 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3550 | * |
46ba1e59 MA |
3551 | * innvl is not used. |
3552 | * | |
3553 | * outnvl: "target" -> name of most recent snapshot | |
3554 | * } | |
34dc7c2f | 3555 | */ |
46ba1e59 | 3556 | /* ARGSUSED */ |
34dc7c2f | 3557 | static int |
46ba1e59 | 3558 | zfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) |
34dc7c2f | 3559 | { |
3558fd73 | 3560 | zfs_sb_t *zsb; |
13fe0198 | 3561 | int error; |
34dc7c2f | 3562 | |
46ba1e59 | 3563 | if (get_zfs_sb(fsname, &zsb) == 0) { |
3558fd73 | 3564 | error = zfs_suspend_fs(zsb); |
34dc7c2f BB |
3565 | if (error == 0) { |
3566 | int resume_err; | |
3567 | ||
46ba1e59 MA |
3568 | error = dsl_dataset_rollback(fsname, zsb, outnvl); |
3569 | resume_err = zfs_resume_fs(zsb, fsname); | |
34dc7c2f | 3570 | error = error ? error : resume_err; |
34dc7c2f | 3571 | } |
2cf7f52b | 3572 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3573 | } else { |
46ba1e59 | 3574 | error = dsl_dataset_rollback(fsname, NULL, outnvl); |
34dc7c2f | 3575 | } |
13fe0198 MA |
3576 | return (error); |
3577 | } | |
34dc7c2f | 3578 | |
13fe0198 MA |
3579 | static int |
3580 | recursive_unmount(const char *fsname, void *arg) | |
3581 | { | |
3582 | const char *snapname = arg; | |
3583 | char *fullname; | |
00fcdee1 | 3584 | int error; |
428870ff | 3585 | |
13fe0198 | 3586 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
00fcdee1 | 3587 | error = zfs_unmount_snap(fullname); |
13fe0198 | 3588 | strfree(fullname); |
00fcdee1 AV |
3589 | |
3590 | return (error); | |
34dc7c2f BB |
3591 | } |
3592 | ||
3593 | /* | |
3594 | * inputs: | |
3595 | * zc_name old name of dataset | |
3596 | * zc_value new name of dataset | |
3597 | * zc_cookie recursive flag (only valid for snapshots) | |
3598 | * | |
3599 | * outputs: none | |
3600 | */ | |
3601 | static int | |
3602 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3603 | { | |
3604 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3605 | char *at; |
34dc7c2f BB |
3606 | |
3607 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3608 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3609 | strchr(zc->zc_value, '%')) | |
2e528b49 | 3610 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3611 | |
13fe0198 MA |
3612 | at = strchr(zc->zc_name, '@'); |
3613 | if (at != NULL) { | |
3614 | /* snaps must be in same fs */ | |
9554185d SH |
3615 | int error; |
3616 | ||
13fe0198 | 3617 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3618 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3619 | *at = '\0'; |
3620 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3621 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3622 | recursive_unmount, at + 1, |
3623 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3624 | if (error != 0) { |
3625 | *at = '@'; | |
13fe0198 | 3626 | return (error); |
9554185d | 3627 | } |
13fe0198 | 3628 | } |
9554185d SH |
3629 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3630 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3631 | *at = '@'; | |
3632 | ||
3633 | return (error); | |
13fe0198 | 3634 | } else { |
ba6a2402 | 3635 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 3636 | } |
34dc7c2f BB |
3637 | } |
3638 | ||
428870ff BB |
3639 | static int |
3640 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3641 | { | |
3642 | const char *propname = nvpair_name(pair); | |
3643 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3644 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3645 | uint64_t intval; | |
3646 | int err; | |
3647 | ||
3648 | if (prop == ZPROP_INVAL) { | |
3649 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3650 | if ((err = zfs_secpolicy_write_perms(dsname, |
3651 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3652 | return (err); |
3653 | return (0); | |
3654 | } | |
3655 | ||
3656 | if (!issnap && zfs_prop_userquota(propname)) { | |
3657 | const char *perm = NULL; | |
3658 | const char *uq_prefix = | |
3659 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3660 | const char *gq_prefix = | |
3661 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3662 | ||
3663 | if (strncmp(propname, uq_prefix, | |
3664 | strlen(uq_prefix)) == 0) { | |
3665 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3666 | } else if (strncmp(propname, gq_prefix, | |
3667 | strlen(gq_prefix)) == 0) { | |
3668 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3669 | } else { | |
3670 | /* USERUSED and GROUPUSED are read-only */ | |
2e528b49 | 3671 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3672 | } |
3673 | ||
c65aa5b2 | 3674 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3675 | return (err); |
3676 | return (0); | |
3677 | } | |
3678 | ||
2e528b49 | 3679 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3680 | } |
3681 | ||
3682 | if (issnap) | |
2e528b49 | 3683 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3684 | |
3685 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3686 | /* | |
3687 | * dsl_prop_get_all_impl() returns properties in this | |
3688 | * format. | |
3689 | */ | |
3690 | nvlist_t *attrs; | |
3691 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3692 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3693 | &pair) == 0); | |
3694 | } | |
3695 | ||
3696 | /* | |
3697 | * Check that this value is valid for this pool version | |
3698 | */ | |
3699 | switch (prop) { | |
3700 | case ZFS_PROP_COMPRESSION: | |
3701 | /* | |
3702 | * If the user specified gzip compression, make sure | |
3703 | * the SPA supports it. We ignore any errors here since | |
3704 | * we'll catch them later. | |
3705 | */ | |
f1512ee6 | 3706 | if (nvpair_value_uint64(pair, &intval) == 0) { |
428870ff BB |
3707 | if (intval >= ZIO_COMPRESS_GZIP_1 && |
3708 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3709 | zfs_earlier_version(dsname, | |
3710 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 3711 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3712 | } |
3713 | ||
3714 | if (intval == ZIO_COMPRESS_ZLE && | |
3715 | zfs_earlier_version(dsname, | |
3716 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 3717 | return (SET_ERROR(ENOTSUP)); |
428870ff | 3718 | |
9759c60f | 3719 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
3720 | spa_t *spa; |
3721 | ||
3722 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3723 | return (err); | |
3724 | ||
fa86b5db MA |
3725 | if (!spa_feature_is_enabled(spa, |
3726 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 3727 | spa_close(spa, FTAG); |
2e528b49 | 3728 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
3729 | } |
3730 | spa_close(spa, FTAG); | |
3731 | } | |
3732 | ||
428870ff BB |
3733 | /* |
3734 | * If this is a bootable dataset then | |
3735 | * verify that the compression algorithm | |
3736 | * is supported for booting. We must return | |
3737 | * something other than ENOTSUP since it | |
3738 | * implies a downrev pool version. | |
3739 | */ | |
3740 | if (zfs_is_bootfs(dsname) && | |
3741 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 3742 | return (SET_ERROR(ERANGE)); |
428870ff BB |
3743 | } |
3744 | } | |
3745 | break; | |
3746 | ||
3747 | case ZFS_PROP_COPIES: | |
3748 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 3749 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3750 | break; |
3751 | ||
3752 | case ZFS_PROP_DEDUP: | |
3753 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
2e528b49 | 3754 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3755 | break; |
3756 | ||
4cb7b9c5 | 3757 | case ZFS_PROP_VOLBLOCKSIZE: |
f1512ee6 MA |
3758 | case ZFS_PROP_RECORDSIZE: |
3759 | /* Record sizes above 128k need the feature to be enabled */ | |
3760 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
3761 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
3762 | spa_t *spa; | |
3763 | ||
3764 | /* | |
3765 | * If this is a bootable dataset then | |
3766 | * the we don't allow large (>128K) blocks, | |
3767 | * because GRUB doesn't support them. | |
3768 | */ | |
3769 | if (zfs_is_bootfs(dsname) && | |
3770 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
3771 | return (SET_ERROR(EDOM)); | |
3772 | } | |
3773 | ||
3774 | /* | |
3775 | * We don't allow setting the property above 1MB, | |
3776 | * unless the tunable has been changed. | |
3777 | */ | |
3778 | if (intval > zfs_max_recordsize || | |
3779 | intval > SPA_MAXBLOCKSIZE) | |
3780 | return (SET_ERROR(EDOM)); | |
3781 | ||
3782 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3783 | return (err); | |
3784 | ||
3785 | if (!spa_feature_is_enabled(spa, | |
3786 | SPA_FEATURE_LARGE_BLOCKS)) { | |
3787 | spa_close(spa, FTAG); | |
3788 | return (SET_ERROR(ENOTSUP)); | |
3789 | } | |
3790 | spa_close(spa, FTAG); | |
3791 | } | |
3792 | break; | |
3793 | ||
428870ff BB |
3794 | case ZFS_PROP_SHARESMB: |
3795 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 3796 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3797 | break; |
3798 | ||
3799 | case ZFS_PROP_ACLINHERIT: | |
3800 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3801 | nvpair_value_uint64(pair, &intval) == 0) { | |
3802 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3803 | zfs_earlier_version(dsname, | |
3804 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 3805 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3806 | } |
3807 | break; | |
e75c13c3 BB |
3808 | default: |
3809 | break; | |
428870ff BB |
3810 | } |
3811 | ||
3812 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3813 | } | |
3814 | ||
3815 | /* | |
3816 | * Removes properties from the given props list that fail permission checks | |
3817 | * needed to clear them and to restore them in case of a receive error. For each | |
3818 | * property, make sure we have both set and inherit permissions. | |
3819 | * | |
3820 | * Returns the first error encountered if any permission checks fail. If the | |
3821 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3822 | * of all the properties that failed a permission check along with the | |
3823 | * corresponding error numbers. The caller is responsible for freeing the | |
3824 | * returned errlist. | |
3825 | * | |
3826 | * If every property checks out successfully, zero is returned and the list | |
3827 | * pointed at by errlist is NULL. | |
3828 | */ | |
3829 | static int | |
3830 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3831 | { |
3832 | zfs_cmd_t *zc; | |
428870ff BB |
3833 | nvpair_t *pair, *next_pair; |
3834 | nvlist_t *errors; | |
3835 | int err, rv = 0; | |
b128c09f BB |
3836 | |
3837 | if (props == NULL) | |
428870ff BB |
3838 | return (0); |
3839 | ||
3840 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3841 | ||
efcd79a8 | 3842 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
b128c09f | 3843 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3844 | pair = nvlist_next_nvpair(props, NULL); |
3845 | while (pair != NULL) { | |
3846 | next_pair = nvlist_next_nvpair(props, pair); | |
3847 | ||
3848 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3849 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
6f1ffb06 | 3850 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
3851 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
3852 | VERIFY(nvlist_add_int32(errors, | |
3853 | zc->zc_value, err) == 0); | |
3854 | } | |
3855 | pair = next_pair; | |
b128c09f BB |
3856 | } |
3857 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3858 | |
3859 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3860 | nvlist_free(errors); | |
3861 | errors = NULL; | |
3862 | } else { | |
3863 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3864 | } | |
3865 | ||
3866 | if (errlist == NULL) | |
3867 | nvlist_free(errors); | |
3868 | else | |
3869 | *errlist = errors; | |
3870 | ||
3871 | return (rv); | |
3872 | } | |
3873 | ||
3874 | static boolean_t | |
3875 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3876 | { | |
3877 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3878 | /* dsl_prop_get_all_impl() format */ | |
3879 | nvlist_t *attrs; | |
3880 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3881 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3882 | &p1) == 0); | |
3883 | } | |
3884 | ||
3885 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3886 | nvlist_t *attrs; | |
3887 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3888 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3889 | &p2) == 0); | |
3890 | } | |
3891 | ||
3892 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3893 | return (B_FALSE); | |
3894 | ||
3895 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3896 | char *valstr1, *valstr2; | |
3897 | ||
3898 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3899 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3900 | return (strcmp(valstr1, valstr2) == 0); | |
3901 | } else { | |
3902 | uint64_t intval1, intval2; | |
3903 | ||
3904 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3905 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3906 | return (intval1 == intval2); | |
3907 | } | |
b128c09f BB |
3908 | } |
3909 | ||
428870ff BB |
3910 | /* |
3911 | * Remove properties from props if they are not going to change (as determined | |
3912 | * by comparison with origprops). Remove them from origprops as well, since we | |
3913 | * do not need to clear or restore properties that won't change. | |
3914 | */ | |
3915 | static void | |
3916 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3917 | { | |
3918 | nvpair_t *pair, *next_pair; | |
3919 | ||
3920 | if (origprops == NULL) | |
3921 | return; /* all props need to be received */ | |
3922 | ||
3923 | pair = nvlist_next_nvpair(props, NULL); | |
3924 | while (pair != NULL) { | |
3925 | const char *propname = nvpair_name(pair); | |
3926 | nvpair_t *match; | |
3927 | ||
3928 | next_pair = nvlist_next_nvpair(props, pair); | |
3929 | ||
3930 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3931 | &match) != 0) || !propval_equals(pair, match)) | |
3932 | goto next; /* need to set received value */ | |
3933 | ||
3934 | /* don't clear the existing received value */ | |
3935 | (void) nvlist_remove_nvpair(origprops, match); | |
3936 | /* don't bother receiving the property */ | |
3937 | (void) nvlist_remove_nvpair(props, pair); | |
3938 | next: | |
3939 | pair = next_pair; | |
3940 | } | |
3941 | } | |
3942 | ||
3943 | #ifdef DEBUG | |
3944 | static boolean_t zfs_ioc_recv_inject_err; | |
3945 | #endif | |
3946 | ||
34dc7c2f BB |
3947 | /* |
3948 | * inputs: | |
3949 | * zc_name name of containing filesystem | |
3950 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3951 | * zc_value name of snapshot to create | |
3952 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3953 | * zc_cookie file descriptor to recv from | |
3954 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3955 | * zc_guid force flag | |
572e2857 BB |
3956 | * zc_cleanup_fd cleanup-on-exit file descriptor |
3957 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
3958 | * |
3959 | * outputs: | |
3960 | * zc_cookie number of bytes read | |
428870ff BB |
3961 | * zc_nvlist_dst{_size} error for each unapplied received property |
3962 | * zc_obj zprop_errflags_t | |
572e2857 | 3963 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
3964 | */ |
3965 | static int | |
3966 | zfs_ioc_recv(zfs_cmd_t *zc) | |
3967 | { | |
3968 | file_t *fp; | |
34dc7c2f | 3969 | dmu_recv_cookie_t drc; |
34dc7c2f | 3970 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
3971 | int fd; |
3972 | int error = 0; | |
3973 | int props_error = 0; | |
3974 | nvlist_t *errors; | |
34dc7c2f | 3975 | offset_t off; |
428870ff BB |
3976 | nvlist_t *props = NULL; /* sent properties */ |
3977 | nvlist_t *origprops = NULL; /* existing properties */ | |
13fe0198 | 3978 | char *origin = NULL; |
34dc7c2f BB |
3979 | char *tosnap; |
3980 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 3981 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
3982 | |
3983 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3984 | strchr(zc->zc_value, '@') == NULL || | |
3985 | strchr(zc->zc_value, '%')) | |
2e528b49 | 3986 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
3987 | |
3988 | (void) strcpy(tofs, zc->zc_value); | |
3989 | tosnap = strchr(tofs, '@'); | |
428870ff | 3990 | *tosnap++ = '\0'; |
34dc7c2f | 3991 | |
b8864a23 | 3992 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 3993 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3994 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
3995 | return (error); |
3996 | ||
3997 | fd = zc->zc_cookie; | |
3998 | fp = getf(fd); | |
3999 | if (fp == NULL) { | |
4000 | nvlist_free(props); | |
2e528b49 | 4001 | return (SET_ERROR(EBADF)); |
34dc7c2f BB |
4002 | } |
4003 | ||
428870ff BB |
4004 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
4005 | ||
13fe0198 MA |
4006 | if (zc->zc_string[0]) |
4007 | origin = zc->zc_string; | |
4008 | ||
4009 | error = dmu_recv_begin(tofs, tosnap, | |
4010 | &zc->zc_begin_record, force, origin, &drc); | |
4011 | if (error != 0) | |
4012 | goto out; | |
4013 | ||
4014 | /* | |
4015 | * Set properties before we receive the stream so that they are applied | |
4016 | * to the new data. Note that we must call dmu_recv_stream() if | |
4017 | * dmu_recv_begin() succeeds. | |
4018 | */ | |
4019 | if (props != NULL && !drc.drc_newfs) { | |
4020 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= | |
4021 | SPA_VERSION_RECVD_PROPS && | |
4022 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4023 | first_recvd_props = B_TRUE; |
428870ff | 4024 | |
b128c09f | 4025 | /* |
428870ff BB |
4026 | * If new received properties are supplied, they are to |
4027 | * completely replace the existing received properties, so stash | |
4028 | * away the existing ones. | |
b128c09f | 4029 | */ |
13fe0198 | 4030 | if (dsl_prop_get_received(tofs, &origprops) == 0) { |
428870ff BB |
4031 | nvlist_t *errlist = NULL; |
4032 | /* | |
4033 | * Don't bother writing a property if its value won't | |
4034 | * change (and avoid the unnecessary security checks). | |
4035 | * | |
4036 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4037 | * special case where we blow away all local properties | |
4038 | * regardless. | |
4039 | */ | |
4040 | if (!first_recvd_props) | |
4041 | props_reduce(props, origprops); | |
13fe0198 | 4042 | if (zfs_check_clearable(tofs, origprops, &errlist) != 0) |
428870ff BB |
4043 | (void) nvlist_merge(errors, errlist, 0); |
4044 | nvlist_free(errlist); | |
b128c09f | 4045 | |
13fe0198 MA |
4046 | if (clear_received_props(tofs, origprops, |
4047 | first_recvd_props ? NULL : props) != 0) | |
428870ff | 4048 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
13fe0198 | 4049 | } else { |
428870ff BB |
4050 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
4051 | } | |
13fe0198 MA |
4052 | } |
4053 | ||
4054 | if (props != NULL) { | |
4055 | props_error = dsl_prop_set_hasrecvd(tofs); | |
428870ff | 4056 | |
13fe0198 MA |
4057 | if (props_error == 0) { |
4058 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
4059 | props, errors); | |
4060 | } | |
428870ff BB |
4061 | } |
4062 | ||
6f1ffb06 MA |
4063 | if (zc->zc_nvlist_dst_size != 0 && |
4064 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4065 | put_nvlist(zc, errors) != 0)) { | |
b128c09f | 4066 | /* |
428870ff BB |
4067 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
4068 | * size or supplied an invalid address. | |
b128c09f | 4069 | */ |
2e528b49 | 4070 | props_error = SET_ERROR(EINVAL); |
34dc7c2f BB |
4071 | } |
4072 | ||
34dc7c2f | 4073 | off = fp->f_offset; |
572e2857 BB |
4074 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
4075 | &zc->zc_action_handle); | |
34dc7c2f | 4076 | |
45d1cae3 | 4077 | if (error == 0) { |
3558fd73 | 4078 | zfs_sb_t *zsb = NULL; |
b128c09f | 4079 | |
3558fd73 | 4080 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
4081 | /* online recv */ |
4082 | int end_err; | |
b128c09f | 4083 | |
3558fd73 | 4084 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
4085 | /* |
4086 | * If the suspend fails, then the recv_end will | |
4087 | * likely also fail, and clean up after itself. | |
4088 | */ | |
831baf06 | 4089 | end_err = dmu_recv_end(&drc, zsb); |
428870ff | 4090 | if (error == 0) |
3558fd73 | 4091 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 4092 | error = error ? error : end_err; |
2cf7f52b | 4093 | deactivate_super(zsb->z_sb); |
b128c09f | 4094 | } else { |
831baf06 | 4095 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4096 | } |
34dc7c2f BB |
4097 | } |
4098 | ||
4099 | zc->zc_cookie = off - fp->f_offset; | |
4100 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4101 | fp->f_offset = off; | |
4102 | ||
428870ff BB |
4103 | #ifdef DEBUG |
4104 | if (zfs_ioc_recv_inject_err) { | |
4105 | zfs_ioc_recv_inject_err = B_FALSE; | |
4106 | error = 1; | |
4107 | } | |
4108 | #endif | |
ba6a2402 | 4109 | |
b128c09f BB |
4110 | /* |
4111 | * On error, restore the original props. | |
4112 | */ | |
13fe0198 MA |
4113 | if (error != 0 && props != NULL && !drc.drc_newfs) { |
4114 | if (clear_received_props(tofs, props, NULL) != 0) { | |
4115 | /* | |
4116 | * We failed to clear the received properties. | |
4117 | * Since we may have left a $recvd value on the | |
4118 | * system, we can't clear the $hasrecvd flag. | |
4119 | */ | |
428870ff | 4120 | zc->zc_obj |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4121 | } else if (first_recvd_props) { |
4122 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4123 | } |
4124 | ||
4125 | if (origprops == NULL && !drc.drc_newfs) { | |
4126 | /* We failed to stash the original properties. */ | |
4127 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4128 | } | |
4129 | ||
4130 | /* | |
4131 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4132 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4133 | * explictly if we're restoring local properties cleared in the | |
4134 | * first new-style receive. | |
4135 | */ | |
4136 | if (origprops != NULL && | |
4137 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
4138 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
4139 | origprops, NULL) != 0) { | |
4140 | /* | |
4141 | * We stashed the original properties but failed to | |
4142 | * restore them. | |
4143 | */ | |
4144 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4145 | } | |
b128c09f BB |
4146 | } |
4147 | out: | |
b128c09f BB |
4148 | nvlist_free(props); |
4149 | nvlist_free(origprops); | |
428870ff | 4150 | nvlist_free(errors); |
34dc7c2f | 4151 | releasef(fd); |
428870ff BB |
4152 | |
4153 | if (error == 0) | |
4154 | error = props_error; | |
4155 | ||
34dc7c2f BB |
4156 | return (error); |
4157 | } | |
4158 | ||
4159 | /* | |
4160 | * inputs: | |
4161 | * zc_name name of snapshot to send | |
34dc7c2f | 4162 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4163 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4164 | * zc_sendobj objsetid of snapshot to send | |
4165 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4166 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4167 | * output size in zc_objset_type. | |
f1512ee6 | 4168 | * zc_flags lzc_send_flags |
34dc7c2f | 4169 | * |
da536844 MA |
4170 | * outputs: |
4171 | * zc_objset_type estimated size, if zc_guid is set | |
34dc7c2f BB |
4172 | */ |
4173 | static int | |
4174 | zfs_ioc_send(zfs_cmd_t *zc) | |
4175 | { | |
34dc7c2f BB |
4176 | int error; |
4177 | offset_t off; | |
330d06f9 | 4178 | boolean_t estimate = (zc->zc_guid != 0); |
9b67f605 | 4179 | boolean_t embedok = (zc->zc_flags & 0x1); |
f1512ee6 | 4180 | boolean_t large_block_ok = (zc->zc_flags & 0x2); |
34dc7c2f | 4181 | |
13fe0198 MA |
4182 | if (zc->zc_obj != 0) { |
4183 | dsl_pool_t *dp; | |
4184 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4185 | |
13fe0198 MA |
4186 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4187 | if (error != 0) | |
572e2857 | 4188 | return (error); |
13fe0198 MA |
4189 | |
4190 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4191 | if (error != 0) { | |
4192 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4193 | return (error); |
4194 | } | |
13fe0198 MA |
4195 | |
4196 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
d683ddbb JG |
4197 | zc->zc_fromobj = |
4198 | dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj; | |
13fe0198 MA |
4199 | dsl_dataset_rele(tosnap, FTAG); |
4200 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4201 | } |
4202 | ||
13fe0198 MA |
4203 | if (estimate) { |
4204 | dsl_pool_t *dp; | |
4205 | dsl_dataset_t *tosnap; | |
4206 | dsl_dataset_t *fromsnap = NULL; | |
4207 | ||
4208 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4209 | if (error != 0) | |
4210 | return (error); | |
6f1ffb06 | 4211 | |
13fe0198 MA |
4212 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); |
4213 | if (error != 0) { | |
4214 | dsl_pool_rele(dp, FTAG); | |
4215 | return (error); | |
6f1ffb06 MA |
4216 | } |
4217 | ||
13fe0198 MA |
4218 | if (zc->zc_fromobj != 0) { |
4219 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4220 | FTAG, &fromsnap); | |
4221 | if (error != 0) { | |
4222 | dsl_dataset_rele(tosnap, FTAG); | |
4223 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4224 | return (error); |
4225 | } | |
4226 | } | |
34dc7c2f | 4227 | |
6f1ffb06 | 4228 | error = dmu_send_estimate(tosnap, fromsnap, |
330d06f9 | 4229 | &zc->zc_objset_type); |
13fe0198 MA |
4230 | |
4231 | if (fromsnap != NULL) | |
4232 | dsl_dataset_rele(fromsnap, FTAG); | |
4233 | dsl_dataset_rele(tosnap, FTAG); | |
4234 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4235 | } else { |
4236 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4237 | if (fp == NULL) |
2e528b49 | 4238 | return (SET_ERROR(EBADF)); |
34dc7c2f | 4239 | |
330d06f9 | 4240 | off = fp->f_offset; |
13fe0198 | 4241 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
f1512ee6 MA |
4242 | zc->zc_fromobj, embedok, large_block_ok, |
4243 | zc->zc_cookie, fp->f_vnode, &off); | |
34dc7c2f | 4244 | |
330d06f9 MA |
4245 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4246 | fp->f_offset = off; | |
4247 | releasef(zc->zc_cookie); | |
4248 | } | |
34dc7c2f BB |
4249 | return (error); |
4250 | } | |
4251 | ||
37abac6d BP |
4252 | /* |
4253 | * inputs: | |
4254 | * zc_name name of snapshot on which to report progress | |
4255 | * zc_cookie file descriptor of send stream | |
4256 | * | |
4257 | * outputs: | |
4258 | * zc_cookie number of bytes written in send stream thus far | |
4259 | */ | |
4260 | static int | |
4261 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4262 | { | |
13fe0198 | 4263 | dsl_pool_t *dp; |
37abac6d BP |
4264 | dsl_dataset_t *ds; |
4265 | dmu_sendarg_t *dsp = NULL; | |
4266 | int error; | |
4267 | ||
13fe0198 MA |
4268 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4269 | if (error != 0) | |
37abac6d BP |
4270 | return (error); |
4271 | ||
13fe0198 MA |
4272 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4273 | if (error != 0) { | |
4274 | dsl_pool_rele(dp, FTAG); | |
4275 | return (error); | |
4276 | } | |
4277 | ||
37abac6d BP |
4278 | mutex_enter(&ds->ds_sendstream_lock); |
4279 | ||
4280 | /* | |
4281 | * Iterate over all the send streams currently active on this dataset. | |
4282 | * If there's one which matches the specified file descriptor _and_ the | |
4283 | * stream was started by the current process, return the progress of | |
4284 | * that stream. | |
4285 | */ | |
4286 | ||
4287 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4288 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4289 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4290 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4291 | break; | |
4292 | } | |
4293 | ||
4294 | if (dsp != NULL) | |
4295 | zc->zc_cookie = *(dsp->dsa_off); | |
4296 | else | |
2e528b49 | 4297 | error = SET_ERROR(ENOENT); |
37abac6d BP |
4298 | |
4299 | mutex_exit(&ds->ds_sendstream_lock); | |
4300 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4301 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4302 | return (error); |
4303 | } | |
4304 | ||
34dc7c2f BB |
4305 | static int |
4306 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4307 | { | |
4308 | int id, error; | |
4309 | ||
4310 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4311 | &zc->zc_inject_record); | |
4312 | ||
4313 | if (error == 0) | |
4314 | zc->zc_guid = (uint64_t)id; | |
4315 | ||
4316 | return (error); | |
4317 | } | |
4318 | ||
4319 | static int | |
4320 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4321 | { | |
4322 | return (zio_clear_fault((int)zc->zc_guid)); | |
4323 | } | |
4324 | ||
4325 | static int | |
4326 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4327 | { | |
4328 | int id = (int)zc->zc_guid; | |
4329 | int error; | |
4330 | ||
4331 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4332 | &zc->zc_inject_record); | |
4333 | ||
4334 | zc->zc_guid = id; | |
4335 | ||
4336 | return (error); | |
4337 | } | |
4338 | ||
4339 | static int | |
4340 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4341 | { | |
4342 | spa_t *spa; | |
4343 | int error; | |
4344 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4345 | ||
4346 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4347 | return (error); | |
4348 | ||
4349 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4350 | &count); | |
4351 | if (error == 0) | |
4352 | zc->zc_nvlist_dst_size = count; | |
4353 | else | |
4354 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4355 | ||
4356 | spa_close(spa, FTAG); | |
4357 | ||
4358 | return (error); | |
4359 | } | |
4360 | ||
4361 | static int | |
4362 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4363 | { | |
4364 | spa_t *spa; | |
4365 | vdev_t *vd; | |
34dc7c2f BB |
4366 | int error; |
4367 | ||
34dc7c2f | 4368 | /* |
b128c09f | 4369 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4370 | */ |
b128c09f BB |
4371 | mutex_enter(&spa_namespace_lock); |
4372 | spa = spa_lookup(zc->zc_name); | |
4373 | if (spa == NULL) { | |
4374 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 4375 | return (SET_ERROR(EIO)); |
b128c09f | 4376 | } |
428870ff | 4377 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4378 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4379 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4380 | } |
428870ff | 4381 | spa->spa_last_open_failed = 0; |
b128c09f | 4382 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4383 | |
428870ff BB |
4384 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4385 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4386 | } else { | |
4387 | nvlist_t *policy; | |
4388 | nvlist_t *config = NULL; | |
4389 | ||
b8864a23 | 4390 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 4391 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4392 | |
4393 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4394 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4395 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4396 | policy, &config); | |
4397 | if (config != NULL) { | |
572e2857 BB |
4398 | int err; |
4399 | ||
4400 | if ((err = put_nvlist(zc, config)) != 0) | |
4401 | error = err; | |
428870ff BB |
4402 | nvlist_free(config); |
4403 | } | |
4404 | nvlist_free(policy); | |
4405 | } | |
4406 | } | |
4407 | ||
13fe0198 | 4408 | if (error != 0) |
b128c09f BB |
4409 | return (error); |
4410 | ||
428870ff | 4411 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4412 | |
4413 | if (zc->zc_guid == 0) { | |
4414 | vd = NULL; | |
b128c09f BB |
4415 | } else { |
4416 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4417 | if (vd == NULL) { |
b128c09f | 4418 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 4419 | spa_close(spa, FTAG); |
2e528b49 | 4420 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
4421 | } |
4422 | } | |
4423 | ||
b128c09f BB |
4424 | vdev_clear(spa, vd); |
4425 | ||
4426 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4427 | |
b128c09f BB |
4428 | /* |
4429 | * Resume any suspended I/Os. | |
4430 | */ | |
9babb374 | 4431 | if (zio_resume(spa) != 0) |
2e528b49 | 4432 | error = SET_ERROR(EIO); |
34dc7c2f BB |
4433 | |
4434 | spa_close(spa, FTAG); | |
4435 | ||
9babb374 | 4436 | return (error); |
34dc7c2f BB |
4437 | } |
4438 | ||
1bd201e7 CS |
4439 | static int |
4440 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4441 | { | |
4442 | spa_t *spa; | |
4443 | int error; | |
4444 | ||
4445 | error = spa_open(zc->zc_name, &spa, FTAG); | |
13fe0198 | 4446 | if (error != 0) |
1bd201e7 CS |
4447 | return (error); |
4448 | ||
4449 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
4450 | |
4451 | /* | |
4452 | * If a resilver is already in progress then set the | |
4453 | * spa_scrub_reopen flag to B_TRUE so that we don't restart | |
4454 | * the scan as a side effect of the reopen. Otherwise, let | |
4455 | * vdev_open() decided if a resilver is required. | |
4456 | */ | |
4457 | spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); | |
1bd201e7 | 4458 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
4459 | spa->spa_scrub_reopen = B_FALSE; |
4460 | ||
1bd201e7 CS |
4461 | (void) spa_vdev_state_exit(spa, NULL, 0); |
4462 | spa_close(spa, FTAG); | |
4463 | return (0); | |
4464 | } | |
34dc7c2f BB |
4465 | /* |
4466 | * inputs: | |
4467 | * zc_name name of filesystem | |
4468 | * zc_value name of origin snapshot | |
4469 | * | |
428870ff BB |
4470 | * outputs: |
4471 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4472 | */ |
4473 | static int | |
4474 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4475 | { | |
4476 | char *cp; | |
4477 | ||
4478 | /* | |
4479 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4480 | * it's easier. | |
4481 | */ | |
4482 | cp = strchr(zc->zc_value, '@'); | |
4483 | if (cp) | |
4484 | *cp = '\0'; | |
4485 | (void) dmu_objset_find(zc->zc_value, | |
13fe0198 | 4486 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 4487 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4488 | } |
4489 | ||
9babb374 BB |
4490 | /* |
4491 | * Retrieve a single {user|group}{used|quota}@... property. | |
4492 | * | |
4493 | * inputs: | |
4494 | * zc_name name of filesystem | |
4495 | * zc_objset_type zfs_userquota_prop_t | |
4496 | * zc_value domain name (eg. "S-1-234-567-89") | |
4497 | * zc_guid RID/UID/GID | |
4498 | * | |
4499 | * outputs: | |
4500 | * zc_cookie property value | |
4501 | */ | |
4502 | static int | |
4503 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4504 | { | |
3558fd73 | 4505 | zfs_sb_t *zsb; |
9babb374 BB |
4506 | int error; |
4507 | ||
4508 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 4509 | return (SET_ERROR(EINVAL)); |
9babb374 | 4510 | |
3558fd73 | 4511 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4512 | if (error != 0) |
9babb374 BB |
4513 | return (error); |
4514 | ||
3558fd73 | 4515 | error = zfs_userspace_one(zsb, |
9babb374 | 4516 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4517 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4518 | |
4519 | return (error); | |
4520 | } | |
4521 | ||
4522 | /* | |
4523 | * inputs: | |
4524 | * zc_name name of filesystem | |
4525 | * zc_cookie zap cursor | |
4526 | * zc_objset_type zfs_userquota_prop_t | |
4527 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4528 | * | |
4529 | * outputs: | |
4530 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4531 | * zc_cookie zap cursor | |
4532 | */ | |
4533 | static int | |
4534 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4535 | { | |
3558fd73 | 4536 | zfs_sb_t *zsb; |
428870ff | 4537 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4538 | int error; |
4539 | void *buf; | |
428870ff BB |
4540 | |
4541 | if (bufsize <= 0) | |
2e528b49 | 4542 | return (SET_ERROR(ENOMEM)); |
9babb374 | 4543 | |
3558fd73 | 4544 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4545 | if (error != 0) |
9babb374 BB |
4546 | return (error); |
4547 | ||
2b8cad61 | 4548 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4549 | |
3558fd73 | 4550 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4551 | buf, &zc->zc_nvlist_dst_size); |
4552 | ||
4553 | if (error == 0) { | |
4554 | error = xcopyout(buf, | |
4555 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4556 | zc->zc_nvlist_dst_size); | |
4557 | } | |
2b8cad61 | 4558 | vmem_free(buf, bufsize); |
3558fd73 | 4559 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4560 | |
4561 | return (error); | |
4562 | } | |
4563 | ||
4564 | /* | |
4565 | * inputs: | |
4566 | * zc_name name of filesystem | |
4567 | * | |
4568 | * outputs: | |
4569 | * none | |
4570 | */ | |
4571 | static int | |
4572 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4573 | { | |
4574 | objset_t *os; | |
428870ff | 4575 | int error = 0; |
3558fd73 | 4576 | zfs_sb_t *zsb; |
9babb374 | 4577 | |
3558fd73 BB |
4578 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4579 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4580 | /* |
4581 | * If userused is not enabled, it may be because the | |
4582 | * objset needs to be closed & reopened (to grow the | |
4583 | * objset_phys_t). Suspend/resume the fs will do that. | |
4584 | */ | |
3558fd73 | 4585 | error = zfs_suspend_fs(zsb); |
831baf06 KW |
4586 | if (error == 0) { |
4587 | dmu_objset_refresh_ownership(zsb->z_os, | |
4588 | zsb); | |
3558fd73 | 4589 | error = zfs_resume_fs(zsb, zc->zc_name); |
831baf06 | 4590 | } |
9babb374 BB |
4591 | } |
4592 | if (error == 0) | |
3558fd73 | 4593 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4594 | deactivate_super(zsb->z_sb); |
9babb374 | 4595 | } else { |
428870ff BB |
4596 | /* XXX kind of reading contents without owning */ |
4597 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4598 | if (error != 0) |
9babb374 BB |
4599 | return (error); |
4600 | ||
4601 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4602 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4603 | } |
4604 | ||
4605 | return (error); | |
4606 | } | |
4607 | ||
34dc7c2f BB |
4608 | static int |
4609 | zfs_ioc_share(zfs_cmd_t *zc) | |
4610 | { | |
2e528b49 | 4611 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
4612 | } |
4613 | ||
9babb374 BB |
4614 | ace_t full_access[] = { |
4615 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4616 | }; | |
4617 | ||
572e2857 BB |
4618 | /* |
4619 | * inputs: | |
4620 | * zc_name name of containing filesystem | |
4621 | * zc_obj object # beyond which we want next in-use object # | |
4622 | * | |
4623 | * outputs: | |
4624 | * zc_obj next in-use object # | |
4625 | */ | |
4626 | static int | |
4627 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4628 | { | |
4629 | objset_t *os = NULL; | |
4630 | int error; | |
4631 | ||
4632 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4633 | if (error != 0) |
572e2857 BB |
4634 | return (error); |
4635 | ||
7290cd3c | 4636 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0); |
572e2857 BB |
4637 | |
4638 | dmu_objset_rele(os, FTAG); | |
4639 | return (error); | |
4640 | } | |
4641 | ||
4642 | /* | |
4643 | * inputs: | |
4644 | * zc_name name of filesystem | |
4645 | * zc_value prefix name for snapshot | |
4646 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4647 | * | |
4648 | * outputs: | |
6f1ffb06 | 4649 | * zc_value short name of new snapshot |
572e2857 BB |
4650 | */ |
4651 | static int | |
4652 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4653 | { | |
4654 | char *snap_name; | |
13fe0198 | 4655 | char *hold_name; |
572e2857 | 4656 | int error; |
13fe0198 | 4657 | minor_t minor; |
572e2857 | 4658 | |
13fe0198 MA |
4659 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
4660 | if (error != 0) | |
572e2857 | 4661 | return (error); |
572e2857 | 4662 | |
13fe0198 MA |
4663 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
4664 | (u_longlong_t)ddi_get_lbolt64()); | |
4665 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
4666 | ||
4667 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
4668 | hold_name); | |
4669 | if (error == 0) | |
4670 | (void) strcpy(zc->zc_value, snap_name); | |
572e2857 | 4671 | strfree(snap_name); |
13fe0198 MA |
4672 | strfree(hold_name); |
4673 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4674 | return (error); | |
572e2857 BB |
4675 | } |
4676 | ||
4677 | /* | |
4678 | * inputs: | |
4679 | * zc_name name of "to" snapshot | |
4680 | * zc_value name of "from" snapshot | |
4681 | * zc_cookie file descriptor to write diff data on | |
4682 | * | |
4683 | * outputs: | |
4684 | * dmu_diff_record_t's to the file descriptor | |
4685 | */ | |
4686 | static int | |
4687 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4688 | { | |
572e2857 BB |
4689 | file_t *fp; |
4690 | offset_t off; | |
4691 | int error; | |
4692 | ||
572e2857 | 4693 | fp = getf(zc->zc_cookie); |
13fe0198 | 4694 | if (fp == NULL) |
2e528b49 | 4695 | return (SET_ERROR(EBADF)); |
572e2857 BB |
4696 | |
4697 | off = fp->f_offset; | |
4698 | ||
13fe0198 | 4699 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
4700 | |
4701 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4702 | fp->f_offset = off; | |
4703 | releasef(zc->zc_cookie); | |
4704 | ||
572e2857 BB |
4705 | return (error); |
4706 | } | |
4707 | ||
9babb374 BB |
4708 | /* |
4709 | * Remove all ACL files in shares dir | |
4710 | */ | |
3c9609b3 | 4711 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4712 | static int |
4713 | zfs_smb_acl_purge(znode_t *dzp) | |
4714 | { | |
4715 | zap_cursor_t zc; | |
4716 | zap_attribute_t zap; | |
3558fd73 | 4717 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4718 | int error; |
4719 | ||
3558fd73 | 4720 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4721 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4722 | zap_cursor_advance(&zc)) { | |
4723 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4724 | NULL, 0)) != 0) | |
4725 | break; | |
4726 | } | |
4727 | zap_cursor_fini(&zc); | |
4728 | return (error); | |
4729 | } | |
3c9609b3 | 4730 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4731 | |
4732 | static int | |
4733 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4734 | { | |
3c9609b3 | 4735 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4736 | vnode_t *vp; |
4737 | znode_t *dzp; | |
4738 | vnode_t *resourcevp = NULL; | |
4739 | znode_t *sharedir; | |
3558fd73 | 4740 | zfs_sb_t *zsb; |
9babb374 BB |
4741 | nvlist_t *nvlist; |
4742 | char *src, *target; | |
4743 | vattr_t vattr; | |
4744 | vsecattr_t vsec; | |
4745 | int error = 0; | |
4746 | ||
4747 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4748 | NO_FOLLOW, NULL, &vp)) != 0) | |
4749 | return (error); | |
4750 | ||
4751 | /* Now make sure mntpnt and dataset are ZFS */ | |
4752 | ||
4753 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4754 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4755 | zc->zc_name) != 0)) { | |
4756 | VN_RELE(vp); | |
2e528b49 | 4757 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
4758 | } |
4759 | ||
4760 | dzp = VTOZ(vp); | |
3558fd73 BB |
4761 | zsb = ZTOZSB(dzp); |
4762 | ZFS_ENTER(zsb); | |
9babb374 BB |
4763 | |
4764 | /* | |
4765 | * Create share dir if its missing. | |
4766 | */ | |
3558fd73 BB |
4767 | mutex_enter(&zsb->z_lock); |
4768 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4769 | dmu_tx_t *tx; |
4770 | ||
3558fd73 | 4771 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4772 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4773 | ZFS_SHARES_DIR); | |
4774 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4775 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 4776 | if (error != 0) { |
9babb374 BB |
4777 | dmu_tx_abort(tx); |
4778 | } else { | |
3558fd73 | 4779 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4780 | dmu_tx_commit(tx); |
4781 | } | |
13fe0198 | 4782 | if (error != 0) { |
3558fd73 | 4783 | mutex_exit(&zsb->z_lock); |
9babb374 | 4784 | VN_RELE(vp); |
3558fd73 | 4785 | ZFS_EXIT(zsb); |
9babb374 BB |
4786 | return (error); |
4787 | } | |
4788 | } | |
3558fd73 | 4789 | mutex_exit(&zsb->z_lock); |
9babb374 | 4790 | |
3558fd73 BB |
4791 | ASSERT(zsb->z_shares_dir); |
4792 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4793 | VN_RELE(vp); |
3558fd73 | 4794 | ZFS_EXIT(zsb); |
9babb374 BB |
4795 | return (error); |
4796 | } | |
4797 | ||
4798 | switch (zc->zc_cookie) { | |
4799 | case ZFS_SMB_ACL_ADD: | |
4800 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4801 | vattr.va_mode = S_IFREG|0777; |
4802 | vattr.va_uid = 0; | |
4803 | vattr.va_gid = 0; | |
4804 | ||
4805 | vsec.vsa_mask = VSA_ACE; | |
4806 | vsec.vsa_aclentp = &full_access; | |
4807 | vsec.vsa_aclentsz = sizeof (full_access); | |
4808 | vsec.vsa_aclcnt = 1; | |
4809 | ||
4810 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4811 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4812 | if (resourcevp) | |
4813 | VN_RELE(resourcevp); | |
4814 | break; | |
4815 | ||
4816 | case ZFS_SMB_ACL_REMOVE: | |
4817 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4818 | NULL, 0); | |
4819 | break; | |
4820 | ||
4821 | case ZFS_SMB_ACL_RENAME: | |
4822 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4823 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4824 | VN_RELE(vp); | |
a4d179ef | 4825 | VN_RELE(ZTOV(sharedir)); |
3558fd73 | 4826 | ZFS_EXIT(zsb); |
9babb374 BB |
4827 | return (error); |
4828 | } | |
4829 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4830 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4831 | &target)) { | |
4832 | VN_RELE(vp); | |
4833 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4834 | ZFS_EXIT(zsb); |
428870ff | 4835 | nvlist_free(nvlist); |
9babb374 BB |
4836 | return (error); |
4837 | } | |
4838 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4839 | kcred, NULL, 0); | |
4840 | nvlist_free(nvlist); | |
4841 | break; | |
4842 | ||
4843 | case ZFS_SMB_ACL_PURGE: | |
4844 | error = zfs_smb_acl_purge(sharedir); | |
4845 | break; | |
4846 | ||
4847 | default: | |
2e528b49 | 4848 | error = SET_ERROR(EINVAL); |
9babb374 BB |
4849 | break; |
4850 | } | |
4851 | ||
4852 | VN_RELE(vp); | |
4853 | VN_RELE(ZTOV(sharedir)); | |
4854 | ||
3558fd73 | 4855 | ZFS_EXIT(zsb); |
9babb374 BB |
4856 | |
4857 | return (error); | |
325f0235 | 4858 | #else |
2e528b49 | 4859 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 4860 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4861 | } |
4862 | ||
45d1cae3 | 4863 | /* |
13fe0198 MA |
4864 | * innvl: { |
4865 | * "holds" -> { snapname -> holdname (string), ... } | |
4866 | * (optional) "cleanup_fd" -> fd (int32) | |
4867 | * } | |
45d1cae3 | 4868 | * |
13fe0198 MA |
4869 | * outnvl: { |
4870 | * snapname -> error value (int32) | |
4871 | * ... | |
4872 | * } | |
45d1cae3 | 4873 | */ |
13fe0198 | 4874 | /* ARGSUSED */ |
45d1cae3 | 4875 | static int |
13fe0198 | 4876 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 4877 | { |
fc581e05 | 4878 | nvpair_t *pair; |
13fe0198 MA |
4879 | nvlist_t *holds; |
4880 | int cleanup_fd = -1; | |
572e2857 BB |
4881 | int error; |
4882 | minor_t minor = 0; | |
45d1cae3 | 4883 | |
13fe0198 MA |
4884 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
4885 | if (error != 0) | |
2e528b49 | 4886 | return (SET_ERROR(EINVAL)); |
572e2857 | 4887 | |
fc581e05 JJS |
4888 | /* make sure the user didn't pass us any invalid (empty) tags */ |
4889 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
4890 | pair = nvlist_next_nvpair(holds, pair)) { | |
4891 | char *htag; | |
4892 | ||
4893 | error = nvpair_value_string(pair, &htag); | |
4894 | if (error != 0) | |
4895 | return (SET_ERROR(error)); | |
4896 | ||
4897 | if (strlen(htag) == 0) | |
4898 | return (SET_ERROR(EINVAL)); | |
4899 | } | |
4900 | ||
13fe0198 MA |
4901 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
4902 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
4903 | if (error != 0) | |
572e2857 | 4904 | return (error); |
572e2857 | 4905 | } |
572e2857 | 4906 | |
13fe0198 MA |
4907 | error = dsl_dataset_user_hold(holds, minor, errlist); |
4908 | if (minor != 0) | |
4909 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 4910 | return (error); |
45d1cae3 BB |
4911 | } |
4912 | ||
4913 | /* | |
13fe0198 | 4914 | * innvl is not used. |
45d1cae3 | 4915 | * |
13fe0198 MA |
4916 | * outnvl: { |
4917 | * holdname -> time added (uint64 seconds since epoch) | |
4918 | * ... | |
4919 | * } | |
45d1cae3 | 4920 | */ |
13fe0198 | 4921 | /* ARGSUSED */ |
45d1cae3 | 4922 | static int |
13fe0198 | 4923 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 4924 | { |
13fe0198 | 4925 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
4926 | } |
4927 | ||
4928 | /* | |
13fe0198 MA |
4929 | * innvl: { |
4930 | * snapname -> { holdname, ... } | |
4931 | * ... | |
4932 | * } | |
45d1cae3 | 4933 | * |
13fe0198 MA |
4934 | * outnvl: { |
4935 | * snapname -> error value (int32) | |
4936 | * ... | |
4937 | * } | |
45d1cae3 | 4938 | */ |
13fe0198 | 4939 | /* ARGSUSED */ |
45d1cae3 | 4940 | static int |
13fe0198 | 4941 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 4942 | { |
13fe0198 | 4943 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
4944 | } |
4945 | ||
26685276 BB |
4946 | /* |
4947 | * inputs: | |
4948 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 4949 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
4950 | * |
4951 | * outputs: | |
4952 | * zc_nvlist_dst next nvlist event | |
4953 | * zc_cookie dropped events since last get | |
26685276 BB |
4954 | */ |
4955 | static int | |
4956 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
4957 | { | |
4958 | zfs_zevent_t *ze; | |
4959 | nvlist_t *event = NULL; | |
4960 | minor_t minor; | |
4961 | uint64_t dropped = 0; | |
4962 | int error; | |
4963 | ||
4964 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
4965 | if (error != 0) | |
4966 | return (error); | |
4967 | ||
4968 | do { | |
baa40d45 BB |
4969 | error = zfs_zevent_next(ze, &event, |
4970 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
4971 | if (event != NULL) { |
4972 | zc->zc_cookie = dropped; | |
4973 | error = put_nvlist(zc, event); | |
baa40d45 | 4974 | nvlist_free(event); |
26685276 BB |
4975 | } |
4976 | ||
4977 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
4978 | break; | |
4979 | ||
4980 | if ((error == 0) || (error != ENOENT)) | |
4981 | break; | |
4982 | ||
4983 | error = zfs_zevent_wait(ze); | |
13fe0198 | 4984 | if (error != 0) |
26685276 BB |
4985 | break; |
4986 | } while (1); | |
4987 | ||
4988 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
4989 | ||
4990 | return (error); | |
4991 | } | |
4992 | ||
4993 | /* | |
4994 | * outputs: | |
4995 | * zc_cookie cleared events count | |
4996 | */ | |
4997 | static int | |
4998 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
4999 | { | |
5000 | int count; | |
5001 | ||
5002 | zfs_zevent_drain_all(&count); | |
5003 | zc->zc_cookie = count; | |
5004 | ||
d1d7e268 | 5005 | return (0); |
26685276 BB |
5006 | } |
5007 | ||
75e3ff58 BB |
5008 | /* |
5009 | * inputs: | |
5010 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5011 | * zc_cleanup zevent file descriptor | |
5012 | */ | |
5013 | static int | |
5014 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5015 | { | |
5016 | zfs_zevent_t *ze; | |
5017 | minor_t minor; | |
5018 | int error; | |
5019 | ||
5020 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5021 | if (error != 0) | |
5022 | return (error); | |
5023 | ||
5024 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5025 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5026 | ||
5027 | return (error); | |
5028 | } | |
5029 | ||
330d06f9 MA |
5030 | /* |
5031 | * inputs: | |
5032 | * zc_name name of new filesystem or snapshot | |
5033 | * zc_value full name of old snapshot | |
5034 | * | |
5035 | * outputs: | |
5036 | * zc_cookie space in bytes | |
5037 | * zc_objset_type compressed space in bytes | |
5038 | * zc_perm_action uncompressed space in bytes | |
5039 | */ | |
5040 | static int | |
5041 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5042 | { | |
5043 | int error; | |
13fe0198 | 5044 | dsl_pool_t *dp; |
330d06f9 MA |
5045 | dsl_dataset_t *new, *old; |
5046 | ||
13fe0198 | 5047 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5048 | if (error != 0) |
5049 | return (error); | |
13fe0198 MA |
5050 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5051 | if (error != 0) { | |
5052 | dsl_pool_rele(dp, FTAG); | |
5053 | return (error); | |
5054 | } | |
5055 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5056 | if (error != 0) { |
5057 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5058 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5059 | return (error); |
5060 | } | |
5061 | ||
5062 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5063 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5064 | dsl_dataset_rele(old, FTAG); | |
5065 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5066 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5067 | return (error); |
5068 | } | |
5069 | ||
5070 | /* | |
6f1ffb06 MA |
5071 | * innvl: { |
5072 | * "firstsnap" -> snapshot name | |
5073 | * } | |
330d06f9 | 5074 | * |
6f1ffb06 MA |
5075 | * outnvl: { |
5076 | * "used" -> space in bytes | |
5077 | * "compressed" -> compressed space in bytes | |
5078 | * "uncompressed" -> uncompressed space in bytes | |
5079 | * } | |
330d06f9 MA |
5080 | */ |
5081 | static int | |
6f1ffb06 | 5082 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
5083 | { |
5084 | int error; | |
13fe0198 | 5085 | dsl_pool_t *dp; |
330d06f9 | 5086 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
5087 | char *firstsnap; |
5088 | uint64_t used, comp, uncomp; | |
330d06f9 | 5089 | |
6f1ffb06 | 5090 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
2e528b49 | 5091 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5092 | |
13fe0198 | 5093 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5094 | if (error != 0) |
5095 | return (error); | |
13fe0198 MA |
5096 | |
5097 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
71e2fe41 AG |
5098 | if (error == 0 && !new->ds_is_snapshot) { |
5099 | dsl_dataset_rele(new, FTAG); | |
5100 | error = SET_ERROR(EINVAL); | |
5101 | } | |
13fe0198 MA |
5102 | if (error != 0) { |
5103 | dsl_pool_rele(dp, FTAG); | |
5104 | return (error); | |
5105 | } | |
5106 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
71e2fe41 AG |
5107 | if (error == 0 && !old->ds_is_snapshot) { |
5108 | dsl_dataset_rele(old, FTAG); | |
5109 | error = SET_ERROR(EINVAL); | |
5110 | } | |
330d06f9 MA |
5111 | if (error != 0) { |
5112 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5113 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5114 | return (error); |
5115 | } | |
5116 | ||
6f1ffb06 | 5117 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5118 | dsl_dataset_rele(old, FTAG); |
5119 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5120 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5121 | fnvlist_add_uint64(outnvl, "used", used); |
5122 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5123 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5124 | return (error); |
5125 | } | |
5126 | ||
34dc7c2f | 5127 | /* |
6f1ffb06 MA |
5128 | * innvl: { |
5129 | * "fd" -> file descriptor to write stream to (int32) | |
5130 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
f1512ee6 MA |
5131 | * (optional) "largeblockok" -> (value ignored) |
5132 | * indicates that blocks > 128KB are permitted | |
9b67f605 MA |
5133 | * (optional) "embedok" -> (value ignored) |
5134 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
6f1ffb06 MA |
5135 | * } |
5136 | * | |
5137 | * outnvl is unused | |
34dc7c2f | 5138 | */ |
6f1ffb06 MA |
5139 | /* ARGSUSED */ |
5140 | static int | |
5141 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5142 | { | |
6f1ffb06 MA |
5143 | int error; |
5144 | offset_t off; | |
13fe0198 | 5145 | char *fromname = NULL; |
6f1ffb06 | 5146 | int fd; |
13fe0198 | 5147 | file_t *fp; |
f1512ee6 | 5148 | boolean_t largeblockok; |
9b67f605 | 5149 | boolean_t embedok; |
6f1ffb06 MA |
5150 | |
5151 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5152 | if (error != 0) | |
2e528b49 | 5153 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5154 | |
13fe0198 | 5155 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5156 | |
f1512ee6 | 5157 | largeblockok = nvlist_exists(innvl, "largeblockok"); |
9b67f605 MA |
5158 | embedok = nvlist_exists(innvl, "embedok"); |
5159 | ||
13fe0198 | 5160 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 5161 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
5162 | |
5163 | off = fp->f_offset; | |
f1512ee6 MA |
5164 | error = dmu_send(snapname, fromname, embedok, largeblockok, |
5165 | fd, fp->f_vnode, &off); | |
6f1ffb06 MA |
5166 | |
5167 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5168 | fp->f_offset = off; | |
13fe0198 | 5169 | |
6f1ffb06 | 5170 | releasef(fd); |
6f1ffb06 MA |
5171 | return (error); |
5172 | } | |
5173 | ||
5174 | /* | |
5175 | * Determine approximately how large a zfs send stream will be -- the number | |
5176 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5177 | * | |
5178 | * innvl: { | |
5dc8b736 MG |
5179 | * (optional) "from" -> full snap or bookmark name to send an incremental |
5180 | * from | |
6f1ffb06 MA |
5181 | * } |
5182 | * | |
5183 | * outnvl: { | |
5184 | * "space" -> bytes of space (uint64) | |
5185 | * } | |
5186 | */ | |
5187 | static int | |
5188 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5189 | { | |
13fe0198 | 5190 | dsl_pool_t *dp; |
13fe0198 | 5191 | dsl_dataset_t *tosnap; |
6f1ffb06 MA |
5192 | int error; |
5193 | char *fromname; | |
5194 | uint64_t space; | |
5195 | ||
13fe0198 MA |
5196 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5197 | if (error != 0) | |
6f1ffb06 MA |
5198 | return (error); |
5199 | ||
13fe0198 MA |
5200 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5201 | if (error != 0) { | |
5202 | dsl_pool_rele(dp, FTAG); | |
5203 | return (error); | |
5204 | } | |
5205 | ||
5dc8b736 | 5206 | error = nvlist_lookup_string(innvl, "from", &fromname); |
6f1ffb06 | 5207 | if (error == 0) { |
5dc8b736 MG |
5208 | if (strchr(fromname, '@') != NULL) { |
5209 | /* | |
5210 | * If from is a snapshot, hold it and use the more | |
5211 | * efficient dmu_send_estimate to estimate send space | |
5212 | * size using deadlists. | |
5213 | */ | |
5214 | dsl_dataset_t *fromsnap; | |
5215 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); | |
5216 | if (error != 0) | |
5217 | goto out; | |
5218 | error = dmu_send_estimate(tosnap, fromsnap, &space); | |
5219 | dsl_dataset_rele(fromsnap, FTAG); | |
5220 | } else if (strchr(fromname, '#') != NULL) { | |
5221 | /* | |
5222 | * If from is a bookmark, fetch the creation TXG of the | |
5223 | * snapshot it was created from and use that to find | |
5224 | * blocks that were born after it. | |
5225 | */ | |
5226 | zfs_bookmark_phys_t frombm; | |
5227 | ||
5228 | error = dsl_bookmark_lookup(dp, fromname, tosnap, | |
5229 | &frombm); | |
5230 | if (error != 0) | |
5231 | goto out; | |
5232 | error = dmu_send_estimate_from_txg(tosnap, | |
5233 | frombm.zbm_creation_txg, &space); | |
5234 | } else { | |
5235 | /* | |
5236 | * from is not properly formatted as a snapshot or | |
5237 | * bookmark | |
5238 | */ | |
5239 | error = SET_ERROR(EINVAL); | |
5240 | goto out; | |
6f1ffb06 | 5241 | } |
5dc8b736 MG |
5242 | } else { |
5243 | // If estimating the size of a full send, use dmu_send_estimate | |
5244 | error = dmu_send_estimate(tosnap, NULL, &space); | |
6f1ffb06 MA |
5245 | } |
5246 | ||
6f1ffb06 MA |
5247 | fnvlist_add_uint64(outnvl, "space", space); |
5248 | ||
5dc8b736 | 5249 | out: |
13fe0198 MA |
5250 | dsl_dataset_rele(tosnap, FTAG); |
5251 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5252 | return (error); |
5253 | } | |
5254 | ||
6f1ffb06 MA |
5255 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; |
5256 | ||
5257 | static void | |
5258 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5259 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5260 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
5261 | { | |
5262 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5263 | ||
5264 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5265 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5266 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5267 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5268 | ||
5269 | vec->zvec_legacy_func = func; | |
5270 | vec->zvec_secpolicy = secpolicy; | |
5271 | vec->zvec_namecheck = namecheck; | |
5272 | vec->zvec_allow_log = log_history; | |
5273 | vec->zvec_pool_check = pool_check; | |
5274 | } | |
5275 | ||
5276 | /* | |
5277 | * See the block comment at the beginning of this file for details on | |
5278 | * each argument to this function. | |
5279 | */ | |
5280 | static void | |
5281 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
5282 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5283 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
5284 | boolean_t allow_log) | |
5285 | { | |
5286 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5287 | ||
5288 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5289 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5290 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5291 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5292 | ||
5293 | /* if we are logging, the name must be valid */ | |
5294 | ASSERT(!allow_log || namecheck != NO_NAME); | |
5295 | ||
5296 | vec->zvec_name = name; | |
5297 | vec->zvec_func = func; | |
5298 | vec->zvec_secpolicy = secpolicy; | |
5299 | vec->zvec_namecheck = namecheck; | |
5300 | vec->zvec_pool_check = pool_check; | |
5301 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
5302 | vec->zvec_allow_log = allow_log; | |
5303 | } | |
5304 | ||
5305 | static void | |
5306 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5307 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
5308 | zfs_ioc_poolcheck_t pool_check) | |
5309 | { | |
5310 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5311 | POOL_NAME, log_history, pool_check); | |
5312 | } | |
5313 | ||
5314 | static void | |
5315 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5316 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
5317 | { | |
5318 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5319 | DATASET_NAME, B_FALSE, pool_check); | |
5320 | } | |
5321 | ||
5322 | static void | |
5323 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5324 | { | |
5325 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
5326 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5327 | } | |
5328 | ||
5329 | static void | |
5330 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5331 | zfs_secpolicy_func_t *secpolicy) | |
5332 | { | |
5333 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5334 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5335 | } | |
5336 | ||
5337 | static void | |
5338 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
5339 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
5340 | { | |
5341 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5342 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
5343 | } | |
5344 | ||
5345 | static void | |
5346 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5347 | { | |
5348 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
5349 | zfs_secpolicy_read); | |
5350 | } | |
5351 | ||
5352 | static void | |
5353 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5354 | zfs_secpolicy_func_t *secpolicy) | |
5355 | { | |
5356 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5357 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5358 | } | |
5359 | ||
5360 | static void | |
5361 | zfs_ioctl_init(void) | |
5362 | { | |
5363 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
5364 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
5365 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5366 | ||
5367 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
5368 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
5369 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
5370 | ||
5371 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
5372 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
5373 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5374 | ||
5375 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
5376 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
5377 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5378 | ||
5379 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
5380 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
5381 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5382 | ||
5383 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
5384 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
5385 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5386 | ||
5387 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
5388 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
5389 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5390 | ||
5391 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
5392 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
5393 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5394 | ||
13fe0198 MA |
5395 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
5396 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
5397 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5398 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
5399 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
5400 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5401 | ||
5402 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
5403 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
5404 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5405 | ||
46ba1e59 MA |
5406 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
5407 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
5408 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); | |
5409 | ||
da536844 MA |
5410 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
5411 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
5412 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5413 | ||
5414 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
5415 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
5416 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5417 | ||
5418 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
5419 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
5420 | POOL_NAME, | |
5421 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5422 | ||
6f1ffb06 MA |
5423 | /* IOCTLS that use the legacy function signature */ |
5424 | ||
5425 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
5426 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
5427 | ||
5428 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
5429 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5430 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
5431 | zfs_ioc_pool_scan); | |
5432 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
5433 | zfs_ioc_pool_upgrade); | |
5434 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
5435 | zfs_ioc_vdev_add); | |
5436 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
5437 | zfs_ioc_vdev_remove); | |
5438 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
5439 | zfs_ioc_vdev_set_state); | |
5440 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
5441 | zfs_ioc_vdev_attach); | |
5442 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
5443 | zfs_ioc_vdev_detach); | |
5444 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
5445 | zfs_ioc_vdev_setpath); | |
5446 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
5447 | zfs_ioc_vdev_setfru); | |
5448 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
5449 | zfs_ioc_pool_set_props); | |
5450 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
5451 | zfs_ioc_vdev_split); | |
5452 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
5453 | zfs_ioc_pool_reguid); | |
5454 | ||
5455 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
5456 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
5457 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
5458 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
5459 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
5460 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
5461 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
5462 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
5463 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
5464 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
5465 | ||
5466 | /* | |
5467 | * pool destroy, and export don't log the history as part of | |
5468 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
5469 | * does the logging of those commands. | |
5470 | */ | |
5471 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
87a63dd7 | 5472 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 | 5473 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, |
87a63dd7 | 5474 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 MA |
5475 | |
5476 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
5477 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5478 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
5479 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5480 | ||
5481 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
5482 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
5483 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
5484 | zfs_ioc_dsobj_to_dsname, | |
5485 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
5486 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
5487 | zfs_ioc_pool_get_history, | |
5488 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
5489 | ||
5490 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
5491 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5492 | ||
5493 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
ac72fac3 | 5494 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); |
6f1ffb06 MA |
5495 | zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
5496 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5497 | ||
5498 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
5499 | zfs_ioc_space_written); | |
6f1ffb06 MA |
5500 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
5501 | zfs_ioc_objset_recvd_props); | |
5502 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
5503 | zfs_ioc_next_obj); | |
5504 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
5505 | zfs_ioc_get_fsacl); | |
5506 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
5507 | zfs_ioc_objset_stats); | |
5508 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
5509 | zfs_ioc_objset_zplprops); | |
5510 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
5511 | zfs_ioc_dataset_list_next); | |
5512 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
5513 | zfs_ioc_snapshot_list_next); | |
5514 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
5515 | zfs_ioc_send_progress); | |
5516 | ||
5517 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
5518 | zfs_ioc_diff, zfs_secpolicy_diff); | |
5519 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
5520 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
5521 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
5522 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
5523 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
5524 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
5525 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
5526 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
5527 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
5528 | zfs_ioc_send, zfs_secpolicy_send); | |
5529 | ||
5530 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
5531 | zfs_secpolicy_none); | |
5532 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
5533 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
5534 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
5535 | zfs_secpolicy_rename); | |
5536 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
5537 | zfs_secpolicy_recv); | |
5538 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
5539 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
5540 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
5541 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
5542 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
5543 | zfs_secpolicy_set_fsacl); | |
5544 | ||
5545 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
5546 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
5547 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
5548 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
5549 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
5550 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
5551 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5552 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
5553 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
5554 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5555 | ||
5556 | /* | |
ba6a2402 | 5557 | * ZoL functions |
6f1ffb06 | 5558 | */ |
6f1ffb06 MA |
5559 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
5560 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5561 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
5562 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
5563 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
5564 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 5565 | } |
34dc7c2f | 5566 | |
9babb374 | 5567 | int |
572e2857 BB |
5568 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
5569 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
5570 | { |
5571 | spa_t *spa; | |
5572 | int error; | |
5573 | ||
5574 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
5575 | ||
572e2857 BB |
5576 | if (check & POOL_CHECK_NONE) |
5577 | return (0); | |
5578 | ||
9babb374 BB |
5579 | error = spa_open(name, &spa, FTAG); |
5580 | if (error == 0) { | |
572e2857 | 5581 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 5582 | error = SET_ERROR(EAGAIN); |
572e2857 | 5583 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 5584 | error = SET_ERROR(EROFS); |
9babb374 BB |
5585 | spa_close(spa, FTAG); |
5586 | } | |
5587 | return (error); | |
5588 | } | |
5589 | ||
325f0235 BB |
5590 | static void * |
5591 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
5592 | { | |
5593 | zfsdev_state_t *zs; | |
5594 | ||
3937ab20 | 5595 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 5596 | if (zs->zs_minor == minor) { |
3937ab20 | 5597 | smp_rmb(); |
325f0235 | 5598 | switch (which) { |
d1d7e268 MK |
5599 | case ZST_ONEXIT: |
5600 | return (zs->zs_onexit); | |
5601 | case ZST_ZEVENT: | |
5602 | return (zs->zs_zevent); | |
5603 | case ZST_ALL: | |
5604 | return (zs); | |
325f0235 BB |
5605 | } |
5606 | } | |
5607 | } | |
5608 | ||
d1d7e268 | 5609 | return (NULL); |
325f0235 BB |
5610 | } |
5611 | ||
5612 | void * | |
5613 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
5614 | { | |
5615 | void *ptr; | |
5616 | ||
325f0235 | 5617 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 5618 | |
d1d7e268 | 5619 | return (ptr); |
325f0235 BB |
5620 | } |
5621 | ||
72540ea3 RY |
5622 | int |
5623 | zfsdev_getminor(struct file *filp, minor_t *minorp) | |
325f0235 | 5624 | { |
72540ea3 RY |
5625 | zfsdev_state_t *zs, *fpd; |
5626 | ||
325f0235 | 5627 | ASSERT(filp != NULL); |
72540ea3 RY |
5628 | ASSERT(!MUTEX_HELD(&zfsdev_state_lock)); |
5629 | ||
5630 | fpd = filp->private_data; | |
5631 | if (fpd == NULL) | |
5632 | return (EBADF); | |
5633 | ||
5634 | mutex_enter(&zfsdev_state_lock); | |
5635 | ||
5636 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
5637 | ||
5638 | if (zs->zs_minor == -1) | |
5639 | continue; | |
5640 | ||
5641 | if (fpd == zs) { | |
5642 | *minorp = fpd->zs_minor; | |
5643 | mutex_exit(&zfsdev_state_lock); | |
5644 | return (0); | |
5645 | } | |
5646 | } | |
5647 | ||
5648 | mutex_exit(&zfsdev_state_lock); | |
325f0235 | 5649 | |
72540ea3 | 5650 | return (EBADF); |
325f0235 BB |
5651 | } |
5652 | ||
572e2857 | 5653 | /* |
325f0235 BB |
5654 | * Find a free minor number. The zfsdev_state_list is expected to |
5655 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
5656 | */ |
5657 | minor_t | |
5658 | zfsdev_minor_alloc(void) | |
5659 | { | |
325f0235 | 5660 | static minor_t last_minor = 0; |
572e2857 BB |
5661 | minor_t m; |
5662 | ||
5663 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
5664 | ||
5665 | for (m = last_minor + 1; m != last_minor; m++) { | |
5666 | if (m > ZFSDEV_MAX_MINOR) | |
5667 | m = 1; | |
325f0235 | 5668 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
5669 | last_minor = m; |
5670 | return (m); | |
5671 | } | |
5672 | } | |
5673 | ||
5674 | return (0); | |
5675 | } | |
5676 | ||
5677 | static int | |
325f0235 | 5678 | zfsdev_state_init(struct file *filp) |
572e2857 | 5679 | { |
3937ab20 | 5680 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 5681 | minor_t minor; |
3937ab20 | 5682 | boolean_t newzs = B_FALSE; |
572e2857 BB |
5683 | |
5684 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 5685 | |
d1d7e268 MK |
5686 | minor = zfsdev_minor_alloc(); |
5687 | if (minor == 0) | |
5688 | return (SET_ERROR(ENXIO)); | |
325f0235 | 5689 | |
3937ab20 TC |
5690 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
5691 | if (zs->zs_minor == -1) | |
5692 | break; | |
5693 | zsprev = zs; | |
5694 | } | |
5695 | ||
5696 | if (!zs) { | |
5697 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
5698 | newzs = B_TRUE; | |
5699 | } | |
572e2857 | 5700 | |
325f0235 | 5701 | zs->zs_file = filp; |
325f0235 | 5702 | filp->private_data = zs; |
572e2857 | 5703 | |
325f0235 BB |
5704 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
5705 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 5706 | |
3937ab20 TC |
5707 | |
5708 | /* | |
5709 | * In order to provide for lock-free concurrent read access | |
5710 | * to the minor list in zfsdev_get_state_impl(), new entries | |
5711 | * must be completely written before linking them into the | |
5712 | * list whereas existing entries are already linked; the last | |
5713 | * operation must be updating zs_minor (from -1 to the new | |
5714 | * value). | |
5715 | */ | |
5716 | if (newzs) { | |
5717 | zs->zs_minor = minor; | |
5718 | smp_wmb(); | |
5719 | zsprev->zs_next = zs; | |
5720 | } else { | |
5721 | smp_wmb(); | |
5722 | zs->zs_minor = minor; | |
5723 | } | |
572e2857 BB |
5724 | |
5725 | return (0); | |
5726 | } | |
5727 | ||
325f0235 BB |
5728 | static int |
5729 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 5730 | { |
325f0235 | 5731 | zfsdev_state_t *zs; |
572e2857 | 5732 | |
325f0235 BB |
5733 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
5734 | ASSERT(filp->private_data != NULL); | |
572e2857 | 5735 | |
325f0235 | 5736 | zs = filp->private_data; |
3937ab20 | 5737 | zs->zs_minor = -1; |
325f0235 BB |
5738 | zfs_onexit_destroy(zs->zs_onexit); |
5739 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 5740 | |
d1d7e268 | 5741 | return (0); |
572e2857 BB |
5742 | } |
5743 | ||
5744 | static int | |
325f0235 | 5745 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 5746 | { |
325f0235 | 5747 | int error; |
572e2857 | 5748 | |
325f0235 BB |
5749 | mutex_enter(&zfsdev_state_lock); |
5750 | error = zfsdev_state_init(filp); | |
5751 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 5752 | |
325f0235 | 5753 | return (-error); |
572e2857 BB |
5754 | } |
5755 | ||
5756 | static int | |
325f0235 | 5757 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 5758 | { |
325f0235 | 5759 | int error; |
572e2857 BB |
5760 | |
5761 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 5762 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
5763 | mutex_exit(&zfsdev_state_lock); |
5764 | ||
325f0235 | 5765 | return (-error); |
572e2857 BB |
5766 | } |
5767 | ||
325f0235 BB |
5768 | static long |
5769 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
5770 | { |
5771 | zfs_cmd_t *zc; | |
6f1ffb06 | 5772 | uint_t vecnum; |
4fd762f8 | 5773 | int error, rc, flag = 0; |
6f1ffb06 | 5774 | const zfs_ioc_vec_t *vec; |
fb8e608d | 5775 | char *saved_poolname = NULL; |
6f1ffb06 | 5776 | nvlist_t *innvl = NULL; |
40d06e3c | 5777 | fstrans_cookie_t cookie; |
6f1ffb06 MA |
5778 | |
5779 | vecnum = cmd - ZFS_IOC_FIRST; | |
5780 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
2e528b49 | 5781 | return (-SET_ERROR(EINVAL)); |
6f1ffb06 | 5782 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 5783 | |
2e0358cb BB |
5784 | /* |
5785 | * The registered ioctl list may be sparse, verify that either | |
5786 | * a normal or legacy handler are registered. | |
5787 | */ | |
5788 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
5789 | return (-SET_ERROR(EINVAL)); | |
5790 | ||
efcd79a8 | 5791 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
34dc7c2f | 5792 | |
9babb374 | 5793 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5794 | if (error != 0) { |
2e528b49 | 5795 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5796 | goto out; |
5797 | } | |
34dc7c2f | 5798 | |
6f1ffb06 MA |
5799 | zc->zc_iflags = flag & FKIOCTL; |
5800 | if (zc->zc_nvlist_src_size != 0) { | |
5801 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
5802 | zc->zc_iflags, &innvl); | |
5803 | if (error != 0) | |
5804 | goto out; | |
5805 | } | |
34dc7c2f BB |
5806 | |
5807 | /* | |
5808 | * Ensure that all pool/dataset names are valid before we pass down to | |
5809 | * the lower layers. | |
5810 | */ | |
6f1ffb06 MA |
5811 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
5812 | switch (vec->zvec_namecheck) { | |
5813 | case POOL_NAME: | |
5814 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5815 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5816 | else |
572e2857 | 5817 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5818 | vec->zvec_namecheck, vec->zvec_pool_check); |
5819 | break; | |
34dc7c2f | 5820 | |
6f1ffb06 MA |
5821 | case DATASET_NAME: |
5822 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5823 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5824 | else |
572e2857 | 5825 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5826 | vec->zvec_namecheck, vec->zvec_pool_check); |
5827 | break; | |
34dc7c2f | 5828 | |
6f1ffb06 MA |
5829 | case NO_NAME: |
5830 | break; | |
34dc7c2f BB |
5831 | } |
5832 | ||
34dc7c2f | 5833 | |
6f1ffb06 MA |
5834 | if (error == 0 && !(flag & FKIOCTL)) |
5835 | error = vec->zvec_secpolicy(zc, innvl, CRED()); | |
5836 | ||
5837 | if (error != 0) | |
5838 | goto out; | |
5839 | ||
5840 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
5841 | saved_poolname = strdup(zc->zc_name); |
5842 | if (saved_poolname == NULL) { | |
5843 | error = SET_ERROR(ENOMEM); | |
5844 | goto out; | |
5845 | } else { | |
5846 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
5847 | } | |
6f1ffb06 MA |
5848 | |
5849 | if (vec->zvec_func != NULL) { | |
5850 | nvlist_t *outnvl; | |
5851 | int puterror = 0; | |
5852 | spa_t *spa; | |
5853 | nvlist_t *lognv = NULL; | |
5854 | ||
5855 | ASSERT(vec->zvec_legacy_func == NULL); | |
5856 | ||
5857 | /* | |
5858 | * Add the innvl to the lognv before calling the func, | |
5859 | * in case the func changes the innvl. | |
5860 | */ | |
5861 | if (vec->zvec_allow_log) { | |
5862 | lognv = fnvlist_alloc(); | |
5863 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
5864 | vec->zvec_name); | |
5865 | if (!nvlist_empty(innvl)) { | |
5866 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
5867 | innvl); | |
5868 | } | |
5869 | } | |
5870 | ||
79c76d5b | 5871 | outnvl = fnvlist_alloc(); |
40d06e3c | 5872 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 5873 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
40d06e3c | 5874 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
5875 | |
5876 | if (error == 0 && vec->zvec_allow_log && | |
5877 | spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
5878 | if (!nvlist_empty(outnvl)) { | |
5879 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
5880 | outnvl); | |
5881 | } | |
5882 | (void) spa_history_log_nvl(spa, lognv); | |
5883 | spa_close(spa, FTAG); | |
5884 | } | |
5885 | fnvlist_free(lognv); | |
5886 | ||
5887 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
5888 | int smusherror = 0; | |
5889 | if (vec->zvec_smush_outnvlist) { | |
5890 | smusherror = nvlist_smush(outnvl, | |
5891 | zc->zc_nvlist_dst_size); | |
5892 | } | |
5893 | if (smusherror == 0) | |
5894 | puterror = put_nvlist(zc, outnvl); | |
5895 | } | |
5896 | ||
5897 | if (puterror != 0) | |
5898 | error = puterror; | |
5899 | ||
5900 | nvlist_free(outnvl); | |
5901 | } else { | |
40d06e3c | 5902 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 5903 | error = vec->zvec_legacy_func(zc); |
40d06e3c | 5904 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
5905 | } |
5906 | ||
5907 | out: | |
5908 | nvlist_free(innvl); | |
9babb374 | 5909 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5910 | if (error == 0 && rc != 0) |
2e528b49 | 5911 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5912 | if (error == 0 && vec->zvec_allow_log) { |
5913 | char *s = tsd_get(zfs_allow_log_key); | |
5914 | if (s != NULL) | |
5915 | strfree(s); | |
fb8e608d TC |
5916 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
5917 | } else { | |
5918 | if (saved_poolname != NULL) | |
4fd762f8 | 5919 | strfree(saved_poolname); |
34dc7c2f BB |
5920 | } |
5921 | ||
5922 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5923 | return (-error); |
34dc7c2f BB |
5924 | } |
5925 | ||
325f0235 BB |
5926 | #ifdef CONFIG_COMPAT |
5927 | static long | |
5928 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5929 | { |
d1d7e268 | 5930 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
5931 | } |
5932 | #else | |
d1d7e268 | 5933 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5934 | #endif |
34dc7c2f | 5935 | |
325f0235 | 5936 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
5937 | .open = zfsdev_open, |
5938 | .release = zfsdev_release, | |
5939 | .unlocked_ioctl = zfsdev_ioctl, | |
5940 | .compat_ioctl = zfsdev_compat_ioctl, | |
5941 | .owner = THIS_MODULE, | |
325f0235 | 5942 | }; |
34dc7c2f | 5943 | |
325f0235 | 5944 | static struct miscdevice zfs_misc = { |
d1d7e268 MK |
5945 | .minor = MISC_DYNAMIC_MINOR, |
5946 | .name = ZFS_DRIVER, | |
5947 | .fops = &zfsdev_fops, | |
325f0235 | 5948 | }; |
34dc7c2f BB |
5949 | |
5950 | static int | |
325f0235 | 5951 | zfs_attach(void) |
34dc7c2f | 5952 | { |
325f0235 | 5953 | int error; |
34dc7c2f | 5954 | |
325f0235 | 5955 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
5956 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
5957 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 5958 | |
325f0235 | 5959 | error = misc_register(&zfs_misc); |
d1d7e268 | 5960 | if (error != 0) { |
325f0235 BB |
5961 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); |
5962 | return (error); | |
5963 | } | |
34dc7c2f | 5964 | |
325f0235 | 5965 | return (0); |
34dc7c2f BB |
5966 | } |
5967 | ||
325f0235 BB |
5968 | static void |
5969 | zfs_detach(void) | |
34dc7c2f | 5970 | { |
3937ab20 | 5971 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 5972 | |
324dcd37 | 5973 | misc_deregister(&zfs_misc); |
325f0235 | 5974 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
5975 | |
5976 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
5977 | if (zsprev) | |
5978 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
5979 | zsprev = zs; | |
5980 | } | |
5981 | if (zsprev) | |
5982 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
5983 | } |
5984 | ||
6f1ffb06 MA |
5985 | static void |
5986 | zfs_allow_log_destroy(void *arg) | |
5987 | { | |
5988 | char *poolname = arg; | |
5989 | strfree(poolname); | |
5990 | } | |
325f0235 BB |
5991 | |
5992 | #ifdef DEBUG | |
d1d7e268 | 5993 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 5994 | #else |
d1d7e268 | 5995 | #define ZFS_DEBUG_STR "" |
325f0235 | 5996 | #endif |
34dc7c2f | 5997 | |
b4f3666a | 5998 | static int __init |
34dc7c2f BB |
5999 | _init(void) |
6000 | { | |
6001 | int error; | |
6002 | ||
3d8d245f | 6003 | error = -vn_set_pwd("/"); |
b4f3666a BB |
6004 | if (error) { |
6005 | printk(KERN_NOTICE | |
6006 | "ZFS: Warning unable to set pwd to '/': %d\n", error); | |
6007 | return (error); | |
6008 | } | |
6009 | ||
a0bd735a BP |
6010 | if ((error = -zvol_init()) != 0) |
6011 | return (error); | |
6012 | ||
34dc7c2f BB |
6013 | spa_init(FREAD | FWRITE); |
6014 | zfs_init(); | |
34dc7c2f | 6015 | |
6f1ffb06 MA |
6016 | zfs_ioctl_init(); |
6017 | ||
325f0235 | 6018 | if ((error = zfs_attach()) != 0) |
a0bd735a | 6019 | goto out; |
34dc7c2f | 6020 | |
d5446cfc | 6021 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
6022 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
6023 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 6024 | |
4b5d425f | 6025 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
6026 | "ZFS pool version %s, ZFS filesystem version %s\n", |
6027 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
6028 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
6029 | #ifndef CONFIG_FS_POSIX_ACL |
6030 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
6031 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
6032 | |
6033 | return (0); | |
325f0235 | 6034 | |
a0bd735a | 6035 | out: |
325f0235 BB |
6036 | zfs_fini(); |
6037 | spa_fini(); | |
a0bd735a | 6038 | (void) zvol_fini(); |
4b5d425f | 6039 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
6040 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
6041 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
6042 | |
6043 | return (error); | |
34dc7c2f BB |
6044 | } |
6045 | ||
b4f3666a | 6046 | static void __exit |
34dc7c2f BB |
6047 | _fini(void) |
6048 | { | |
325f0235 | 6049 | zfs_detach(); |
34dc7c2f BB |
6050 | zfs_fini(); |
6051 | spa_fini(); | |
a0bd735a | 6052 | zvol_fini(); |
46e18b3f | 6053 | |
d5446cfc | 6054 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 6055 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 6056 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 6057 | |
4b5d425f | 6058 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 6059 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 6060 | } |
325f0235 BB |
6061 | |
6062 | #ifdef HAVE_SPL | |
b4f3666a BB |
6063 | module_init(_init); |
6064 | module_exit(_fini); | |
325f0235 BB |
6065 | |
6066 | MODULE_DESCRIPTION("ZFS"); | |
6067 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
6068 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 6069 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
325f0235 | 6070 | #endif /* HAVE_SPL */ |